[Perf, Test] (MG_Util): libfork execution engine for the shader compile pool, runtime-selectable

Adds libfork v3.8.0 (3rdparty submodule, header-only, wired like the asio
precedent) as a second execution engine behind ShaderCompilePool, selected
per process by MOBILEGL_ASYNC_POOL=asio|libfork (default asio; unknown
values warn and fall back). The engine boundary is deliberately tiny: the
queue, the concurrency budget and its clamping, the suspension latch,
cancel request-vs-outcome, the stopped-is-synchronous fallback and the
drain all stay in the shared Impl - an engine only answers how a
budget-cleared job reaches a worker.

The libfork engine runs detached root tasks as CHAINS: a finished body
takes the next queued job in the same coroutine on the same worker, so
the refills a worker posts are absorbed without a scheduler round trip
(the naive dispatch-thread shape measured 4x worse than asio on short
jobs). Absorption is bounded at one job per live chain - unbounded
absorption serialized bursts posted from inside the pool, which is the
shipped shape (one compile settling fans out link jobs via SubmitAfter
and the adoption map), caught by the review and pinned by a permanent
peak-concurrency regression test (pre-fix: libfork peak 1 vs asio peak 4
on a 16-job worker-posted burst). External submissions go through a
round-robin adaptor instead of lf::lazy_pool::schedule, which both
avoids a data race on lazy_pool's unsynchronized xoshiro under
concurrent submits and beats birthday-collision placement by ~1.3x at
budget == thread count.

The measured answer to "does asio scale poorly": no - the executor was
never the bottleneck. On real pack corpora extracted from the trace
fixtures (BSL 61 shaders, Complementary 277), interleaved best-of-5 per
cell, the engines are within noise of each other at every thread count
(complementary: 4965/2506/1376/824 ms at 1/2/4/8 threads for asio;
libfork within 1%), both ~6x at 8 threads. perf counters show the
flattening past 4 threads is machine-level (instructions flat at 22.1e9
from 1 to 16 threads - no added work, no lock spinning - while cycles
and LLC misses double: memory-stall bound), and the separating control
- N fully independent single-threaded processes with no shared
scheduler at all - scales WORSE than the pool (5.27x vs 5.94x at 8).
The pool microbenchmark does favor libfork on pure dispatch (518 vs
530 ns/job at 1 worker, growing with worker count), but a real compile
body is 1-100 ms, so dispatch is under 0.1% either way. asio therefore
stays the default; this branch exists to make the comparison
reproducible (MG_Test/Util/AsyncPoolBench drives either engine over a
corpus directory) and to keep the alternative viable.

613/613 unit tests in all four combos ({asio, libfork} x {async default
on, kill switch}), integration scenarios byte-identical between engines
on both backends.

.clang-format

@@ -0,0 +1,27 @@
+BasedOnStyle: Microsoft
+IndentWidth: 4
+UseTab: Never
+AccessModifierOffset: -4
+PointerAlignment: Left
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterFunction: false
+  AfterClass: false
+  AfterControlStatement: Never
+  AfterEnum: false
+  AfterNamespace: false
+  AfterStruct: false
+  AfterUnion: false
+  BeforeElse: false
+  SplitEmptyFunction: false
+  SplitEmptyRecord: false
+
+AllowShortBlocksOnASingleLine: Empty
+AllowShortIfStatementsOnASingleLine: WithoutElse
+AlwaysBreakTemplateDeclarations: Yes
+NamespaceIndentation: All
+AllowShortFunctionsOnASingleLine: Inline
+SortIncludes: false
+FixNamespaceComments: true
+ShortNamespaceLines: 0
+CompactNamespaces: false

.clang-tidy

@@ -0,0 +1,142 @@
+#Generated from CLion Inspection settings
+---
+Checks: '-*,
+bugprone-argument-comment,
+bugprone-assert-side-effect,
+bugprone-bad-signal-to-kill-thread,
+bugprone-branch-clone,
+bugprone-copy-constructor-init,
+bugprone-dangling-handle,
+bugprone-dynamic-static-initializers,
+bugprone-fold-init-type,
+bugprone-forward-declaration-namespace,
+bugprone-forwarding-reference-overload,
+bugprone-inaccurate-erase,
+bugprone-incorrect-roundings,
+bugprone-integer-division,
+bugprone-macro-parentheses,
+bugprone-macro-repeated-side-effects,
+bugprone-misplaced-operator-in-strlen-in-alloc,
+bugprone-misplaced-pointer-arithmetic-in-alloc,
+bugprone-misplaced-widening-cast,
+bugprone-move-forwarding-reference,
+bugprone-multiple-statement-macro,
+bugprone-no-escape,
+bugprone-parent-virtual-call,
+bugprone-posix-return,
+bugprone-reserved-identifier,
+bugprone-sizeof-container,
+bugprone-sizeof-expression,
+bugprone-spuriously-wake-up-functions,
+bugprone-string-constructor,
+bugprone-string-integer-assignment,
+bugprone-string-literal-with-embedded-nul,
+bugprone-suspicious-enum-usage,
+bugprone-suspicious-include,
+bugprone-suspicious-memset-usage,
+bugprone-suspicious-missing-comma,
+bugprone-suspicious-semicolon,
+bugprone-suspicious-string-compare,
+bugprone-suspicious-memory-comparison,
+bugprone-suspicious-realloc-usage,
+bugprone-swapped-arguments,
+bugprone-terminating-continue,
+bugprone-throw-keyword-missing,
+bugprone-too-small-loop-variable,
+bugprone-undefined-memory-manipulation,
+bugprone-undelegated-constructor,
+bugprone-unhandled-self-assignment,
+bugprone-unused-raii,
+bugprone-unused-return-value,
+bugprone-use-after-move,
+bugprone-virtual-near-miss,
+cert-dcl21-cpp,
+cert-dcl58-cpp,
+cert-err34-c,
+cert-err52-cpp,
+cert-err60-cpp,
+cert-flp30-c,
+cert-msc50-cpp,
+cert-msc51-cpp,
+cert-str34-c,
+cppcoreguidelines-interfaces-global-init,
+cppcoreguidelines-narrowing-conversions,
+cppcoreguidelines-pro-type-member-init,
+cppcoreguidelines-slicing,
+google-default-arguments,
+google-runtime-operator,
+hicpp-exception-baseclass,
+hicpp-multiway-paths-covered,
+misc-misplaced-const,
+misc-new-delete-overloads,
+misc-non-copyable-objects,
+misc-throw-by-value-catch-by-reference,
+misc-unconventional-assign-operator,
+misc-uniqueptr-reset-release,
+modernize-avoid-bind,
+modernize-concat-nested-namespaces,
+modernize-deprecated-headers,
+modernize-deprecated-ios-base-aliases,
+modernize-loop-convert,
+modernize-make-shared,
+modernize-make-unique,
+modernize-pass-by-value,
+modernize-raw-string-literal,
+modernize-redundant-void-arg,
+modernize-replace-auto-ptr,
+modernize-replace-disallow-copy-and-assign-macro,
+modernize-replace-random-shuffle,
+modernize-return-braced-init-list,
+modernize-shrink-to-fit,
+modernize-unary-static-assert,
+modernize-use-auto,
+modernize-use-bool-literals,
+modernize-use-emplace,
+modernize-use-equals-default,
+modernize-use-equals-delete,
+modernize-use-noexcept,
+modernize-use-nullptr,
+modernize-use-override,
+modernize-use-transparent-functors,
+modernize-use-uncaught-exceptions,
+mpi-buffer-deref,
+mpi-type-mismatch,
+openmp-use-default-none,
+performance-faster-string-find,
+performance-for-range-copy,
+performance-implicit-conversion-in-loop,
+performance-inefficient-algorithm,
+performance-inefficient-string-concatenation,
+performance-inefficient-vector-operation,
+performance-move-const-arg,
+performance-move-constructor-init,
+performance-no-automatic-move,
+performance-noexcept-move-constructor,
+performance-trivially-destructible,
+performance-type-promotion-in-math-fn,
+performance-unnecessary-copy-initialization,
+performance-unnecessary-value-param,
+portability-simd-intrinsics,
+readability-avoid-const-params-in-decls,
+readability-const-return-type,
+readability-container-size-empty,
+readability-convert-member-functions-to-static,
+readability-delete-null-pointer,
+readability-deleted-default,
+readability-inconsistent-declaration-parameter-name,
+readability-make-member-function-const,
+readability-misleading-indentation,
+readability-misplaced-array-index,
+readability-non-const-parameter,
+readability-redundant-control-flow,
+readability-redundant-declaration,
+readability-redundant-function-ptr-dereference,
+readability-redundant-smartptr-get,
+readability-redundant-string-cstr,
+readability-redundant-string-init,
+readability-simplify-subscript-expr,
+readability-static-accessed-through-instance,
+readability-static-definition-in-anonymous-namespace,
+readability-string-compare,
+readability-uniqueptr-delete-release,
+readability-use-anyofallof'

.gitattributes

@@ -0,0 +1,4 @@
+tools/trace_replay/fixtures/*.tgz filter=lfs diff=lfs merge=lfs -text
+tools/trace_replay/fixtures/*.png filter=lfs diff=lfs merge=lfs -text
+tools/trace_replay/fixtures/openra.tgz -filter -diff -merge -text
+tools/trace_replay/fixtures/openra.0000031249.png -filter -diff -merge -text

.github/scripts/fetch-trace-fixture-lfs.sh

@@ -0,0 +1,246 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [ "$#" -lt 1 ] || [ "$#" -gt 2 ]; then
+  echo "usage: $0 <trace-case> [fixture-dir]" >&2
+  exit 2
+fi
+
+case_name="$1"
+fixture_dir="${2:-tools/trace_replay/fixtures}"
+python_bin="${PYTHON:-python3}"
+# Fixture mirrors, tried in order before falling back to Git LFS. Override the
+# whole list with MOBILEGL_TRACE_FIXTURE_MIRROR_BASES (whitespace separated);
+# MOBILEGL_TRACE_FIXTURE_MIRROR_BASE still works and is tried first.
+default_mirror_bases=(
+  "https://git.hit.moe/swung0x48/MobileGL/media/branch/dev/tools/trace_replay/fixtures"
+  "https://repo.miawa.cn/mgl/tools/trace_replay/fixtures"
+)
+if [ -n "${MOBILEGL_TRACE_FIXTURE_MIRROR_BASES:-}" ]; then
+  read -r -a mirror_bases <<< "${MOBILEGL_TRACE_FIXTURE_MIRROR_BASES}"
+else
+  mirror_bases=("${default_mirror_bases[@]}")
+fi
+if [ -n "${MOBILEGL_TRACE_FIXTURE_MIRROR_BASE:-}" ]; then
+  mirror_bases=("${MOBILEGL_TRACE_FIXTURE_MIRROR_BASE}" "${mirror_bases[@]}")
+fi
+# Optional bearer token for mirrors that require authentication (private Gitea).
+mirror_token="${MOBILEGL_TRACE_FIXTURE_MIRROR_TOKEN:-}"
+download_attempts="${MOBILEGL_TRACE_FIXTURE_DOWNLOAD_ATTEMPTS:-5}"
+retry_delay="${MOBILEGL_TRACE_FIXTURE_RETRY_DELAY:-2}"
+
+if ! command -v "${python_bin}" >/dev/null 2>&1 && command -v python >/dev/null 2>&1; then
+  python_bin=python
+fi
+
+if ! [[ "${download_attempts}" =~ ^[1-9][0-9]*$ ]]; then
+  echo "MOBILEGL_TRACE_FIXTURE_DOWNLOAD_ATTEMPTS must be a positive integer: ${download_attempts}" >&2
+  exit 2
+fi
+if ! [[ "${retry_delay}" =~ ^[0-9]+$ ]]; then
+  echo "MOBILEGL_TRACE_FIXTURE_RETRY_DELAY must be a non-negative integer: ${retry_delay}" >&2
+  exit 2
+fi
+
+fixture_list="$("${python_bin}" tools/trace_replay/trace_cases.py \
+  --format fixture-files \
+  --case "${case_name}" \
+  --fixture-root "${fixture_dir}")"
+# Strip CR so the script also works when python emits CRLF (Git Bash on Windows).
+mapfile -t files < <(printf '%s\n' "${fixture_list}" | tr -d '\r')
+
+include="$(IFS=,; echo "${files[*]}")"
+if [ "${case_name}" = "OpenRA" ]; then
+  echo "Fixture files for ${case_name} are stored in Git: ${include}"
+  for file in "${files[@]}"; do
+    test -s "${file}"
+    if head -n 1 "${file}" | grep -q "version https://git-lfs.github.com/spec/v1"; then
+      echo "fixture should not be stored as an LFS pointer: ${file}" >&2
+      exit 1
+    fi
+  done
+  exit 0
+fi
+
+get_lfs_metadata() {
+  local file="$1"
+  local pointer
+  local expected_oid
+  local expected_size
+
+  if ! pointer="$(git show "HEAD:${file}" 2>/dev/null)"; then
+    echo "failed to read tracked fixture metadata: ${file}" >&2
+    return 1
+  fi
+  if ! grep -q '^version https://git-lfs.github.com/spec/v1$' <<< "${pointer}"; then
+    echo "tracked fixture is not a Git LFS pointer: ${file}" >&2
+    return 1
+  fi
+
+  expected_oid="$(awk '$1 == "oid" && $2 ~ /^sha256:/ { sub(/^sha256:/, "", $2); print $2 }' <<< "${pointer}")"
+  expected_size="$(awk '$1 == "size" { print $2 }' <<< "${pointer}")"
+  if ! [[ "${expected_oid}" =~ ^[0-9a-f]{64}$ ]] || ! [[ "${expected_size}" =~ ^[0-9]+$ ]]; then
+    echo "invalid Git LFS pointer metadata: ${file}" >&2
+    return 1
+  fi
+
+  printf '%s %s\n' "${expected_oid}" "${expected_size}"
+}
+
+verify_fixture_file() {
+  local downloaded_file="$1"
+  local display_name="$2"
+  local expected_oid="$3"
+  local expected_size="$4"
+  local actual_oid
+  local actual_size
+
+  if [ ! -f "${downloaded_file}" ]; then
+    echo "fixture file is missing: ${display_name}" >&2
+    return 1
+  fi
+
+  actual_size="$(wc -c < "${downloaded_file}" | tr -d '[:space:]')"
+  if [ "${actual_size}" != "${expected_size}" ]; then
+    echo "fixture size mismatch for ${display_name}: expected ${expected_size}, got ${actual_size}" >&2
+    return 1
+  fi
+
+  actual_oid="$(sha256sum "${downloaded_file}" | awk '{ print $1 }')"
+  if [ "${actual_oid}" != "${expected_oid}" ]; then
+    echo "fixture SHA-256 mismatch for ${display_name}: expected ${expected_oid}, got ${actual_oid}" >&2
+    return 1
+  fi
+}
+
+fetch_file_from_mirror() {
+  local file="$1"
+  local url="$2"
+  local metadata
+  local expected_oid
+  local expected_size
+  local tmp_file="${file}.tmp"
+  local attempt
+  local partial_size
+  local curl_status
+  local curl_auth
+
+  metadata="$(get_lfs_metadata "${file}")" || return 1
+  read -r expected_oid expected_size <<< "${metadata}"
+
+  if [ -f "${tmp_file}" ]; then
+    partial_size="$(wc -c < "${tmp_file}" | tr -d '[:space:]')"
+    if [ "${partial_size}" -gt "${expected_size}" ]; then
+      echo "Discarding oversized partial fixture ${tmp_file}: ${partial_size} > ${expected_size}" >&2
+      rm -f "${tmp_file}"
+    elif [ "${partial_size}" = "${expected_size}" ]; then
+      if verify_fixture_file "${tmp_file}" "${file}" "${expected_oid}" "${expected_size}"; then
+        mv "${tmp_file}" "${file}"
+        return 0
+      fi
+      rm -f "${tmp_file}"
+    fi
+  fi
+
+  for ((attempt = 1; attempt <= download_attempts; attempt++)); do
+    partial_size=0
+    if [ -f "${tmp_file}" ]; then
+      partial_size="$(wc -c < "${tmp_file}" | tr -d '[:space:]')"
+    fi
+
+    if [ "${partial_size}" -gt 0 ]; then
+      echo "Resuming mirror download for ${file} at byte ${partial_size} (attempt ${attempt}/${download_attempts})"
+    else
+      echo "Starting mirror download for ${file} (attempt ${attempt}/${download_attempts})"
+    fi
+
+    curl_auth=()
+    if [ -n "${mirror_token}" ]; then
+      curl_auth=(--header "Authorization: token ${mirror_token}")
+    fi
+    if curl -L --fail --show-error --continue-at - "${curl_auth[@]}" --output "${tmp_file}" "${url}"; then
+      if verify_fixture_file "${tmp_file}" "${file}" "${expected_oid}" "${expected_size}"; then
+        mv "${tmp_file}" "${file}"
+        return 0
+      fi
+      echo "Mirror download failed integrity verification; retrying from the beginning: ${file}" >&2
+      rm -f "${tmp_file}"
+    else
+      curl_status=$?
+      partial_size=0
+      if [ -f "${tmp_file}" ]; then
+        partial_size="$(wc -c < "${tmp_file}" | tr -d '[:space:]')"
+      fi
+
+      if [ "${partial_size}" = "${expected_size}" ]; then
+        if verify_fixture_file "${tmp_file}" "${file}" "${expected_oid}" "${expected_size}"; then
+          mv "${tmp_file}" "${file}"
+          return 0
+        fi
+        rm -f "${tmp_file}"
+        partial_size=0
+      elif [ "${partial_size}" -gt "${expected_size}" ]; then
+        echo "Discarding oversized partial fixture ${tmp_file}: ${partial_size} > ${expected_size}" >&2
+        rm -f "${tmp_file}"
+        partial_size=0
+      elif [ "${curl_status}" -eq 33 ]; then
+        echo "Mirror refused the resume request; retrying from the beginning: ${file}" >&2
+        rm -f "${tmp_file}"
+        partial_size=0
+      fi
+
+      echo "Mirror download attempt ${attempt}/${download_attempts} failed with curl exit ${curl_status}; retained ${partial_size} bytes for resume: ${file}" >&2
+    fi
+
+    if [ "${attempt}" -lt "${download_attempts}" ]; then
+      sleep "${retry_delay}"
+    fi
+  done
+
+  rm -f "${tmp_file}"
+  return 1
+}
+
+# Files no mirror could serve, even after retrying every mirror. Only these fall
+# back to Git LFS, so a mirror that served the rest of the case still spares
+# GitHub the bandwidth for those files.
+mirror_failures=()
+
+fetch_from_mirror() {
+  mkdir -p "${fixture_dir}"
+  for file in "${files[@]}"; do
+    local name
+    local url
+    local base
+    local fetched=0
+    name="$(basename "${file}")"
+    for base in "${mirror_bases[@]}"; do
+      url="${base%/}/${name}"
+      echo "Fetching trace fixture from mirror: ${url}"
+      if fetch_file_from_mirror "${file}" "${url}"; then
+        fetched=1
+        break
+      fi
+      echo "Mirror did not serve ${name}; trying the next mirror" >&2
+    done
+    if [ "${fetched}" -ne 1 ]; then
+      mirror_failures+=("${file}")
+    fi
+  done
+  [ "${#mirror_failures[@]}" -eq 0 ]
+}
+
+if fetch_from_mirror; then
+  echo "Fetched trace fixture files for ${case_name} from mirror: ${include}"
+else
+  fallback_include="$(IFS=,; echo "${mirror_failures[*]}")"
+  echo "All mirrors failed for ${#mirror_failures[@]} of ${#files[@]} file(s) of ${case_name}; falling back to Git LFS: ${fallback_include}"
+  git lfs install --local
+  git lfs pull --include="${fallback_include}" --exclude=""
+fi
+
+for file in "${files[@]}"; do
+  metadata="$(get_lfs_metadata "${file}")"
+  read -r expected_oid expected_size <<< "${metadata}"
+  verify_fixture_file "${file}" "${file}" "${expected_oid}" "${expected_size}"
+done

.github/scripts/validate-plugin-apks.sh

@@ -0,0 +1,75 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [[ $# -ne 3 ]]; then
+  echo "Usage: $0 <aapt2> <plugin-apk> <trace-apk>" >&2
+  exit 64
+fi
+
+aapt2=$1
+plugin_apk=$2
+trace_apk=$3
+
+require() {
+  local needle=$1
+  local content=$2
+  local description=$3
+  if ! grep -Fq -- "$needle" <<<"$content"; then
+    echo "::error::Missing ${description}: ${needle}" >&2
+    exit 1
+  fi
+}
+
+for apk in "$plugin_apk" "$trace_apk"; do
+  [[ -f "$apk" ]] || { echo "::error::APK not found: $apk" >&2; exit 1; }
+done
+
+plugin_manifest=$("$aapt2" dump xmltree --file AndroidManifest.xml "$plugin_apk")
+plugin_resources=$("$aapt2" dump resources "$plugin_apk")
+plugin_resource_text=$(tr -d '"' <<<"$plugin_resources")
+trace_manifest=$("$aapt2" dump xmltree --file AndroidManifest.xml "$trace_apk")
+plugin_contents=$(unzip -Z1 "$plugin_apk")
+
+require 'top.mobilegl.plugin' "$plugin_manifest" 'plugin package name'
+require 'MobileGL' "$plugin_manifest" 'plugin label'
+require 'fclPlugin' "$plugin_manifest" 'legacy plugin marker'
+require 'fclPlugin_V2' "$plugin_manifest" 'V2 plugin marker'
+require 'LIBGL_ES=3:POJAV_RENDERER=opengles3:MOBILEGL_BACKEND_TYPE=DirectGLES' "$plugin_manifest" 'V1 DirectGLES fallback'
+require 'string/config' "$plugin_resources" 'V2 renderer configuration resource'
+require '{displayName:MobileGL,rendererId:opengles3' "$plugin_resource_text" 'V2 MobileGL entry and renderer ID'
+require 'rendererGLPath:**|libMobileGL.so' "$plugin_resource_text" 'V2 GL library path'
+require 'rendererEGLPath:**|libMobileGL.so' "$plugin_resource_text" 'V2 EGL library path'
+require 'key:LIBGL_ES,value:3' "$plugin_resource_text" 'V2 fixed LIBGL_ES variable'
+require 'key:MOBILEGL_BACKEND_TYPE' "$plugin_resource_text" 'V2 backend variable'
+require 'defaultValue:DirectGLES' "$plugin_resource_text" 'V2 DirectGLES default'
+require 'DirectVulkan' "$plugin_resource_text" 'V2 DirectVulkan option'
+require 'key:MOBILEGL_DISABLE_TIMERQUERY' "$plugin_resource_text" 'V2 timer-query toggle'
+require 'key:MOBILEGL_DISABLE_SUBGROUP' "$plugin_resource_text" 'V2 Vulkan subgroup toggle'
+require 'key:MOBILEGL_MAGMA_R11G11B10F_FALLBACK' "$plugin_resource_text" 'V2 Magma format fallback toggle'
+require 'key:MOBILEGL_MAGMA_FRAMESINFLIGHT' "$plugin_resource_text" 'V2 Magma frames-in-flight setting'
+require 'key:MOBILEGL_AVOID_SAMPLER_MIPMAP_MIN_FILTER' "$plugin_resource_text" 'V2 sampler workaround toggle'
+require 'key:MOBILEGL_COHERENT_AS_FLUSH' "$plugin_resource_text" 'V2 coherent-as-flush toggle'
+require 'key:MOBILEGL_USE_ANGLE' "$plugin_resource_text" 'V2 ANGLE toggle'
+
+if [[ $(grep -Fc 'fclPlugin_V2' <<<"$plugin_manifest") -ne 1 ]]; then
+  echo '::error::Plugin manifest must expose exactly one V2 descriptor' >&2
+  exit 1
+fi
+
+if ! grep -Eq '^lib/[^/]+/libMobileGL\.so$' <<<"$plugin_contents"; then
+  echo '::error::Plugin APK does not contain libMobileGL.so' >&2
+  exit 1
+fi
+
+require 'top.mobilegl.plugin.trace' "$trace_manifest" 'trace package name'
+require 'top.mobilegl.plugin.TRACE_REPLAY' "$trace_manifest" 'trace replay action'
+if grep -Fq 'fclPlugin' <<<"$trace_manifest"; then
+  echo '::error::Trace APK must not advertise renderer-plugin metadata' >&2
+  exit 1
+fi
+if grep -Fq 'android.intent.action.MAIN' <<<"$trace_manifest"; then
+  echo '::error::Trace APK must not expose a launcher activity' >&2
+  exit 1
+fi
+
+echo 'Validated unified MobileGL plugin APK and isolated trace APK.'

.github/workflows/apk.yml

@@ -0,0 +1,560 @@
+name: MobileGL APK
+
+on:
+  push:
+    branches:
+      - dev
+      - Feat/Backend-Direct-GLES
+      - Feat/Backend-Direct-Vulkan
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    env:
+      CCACHE_BASEDIR: ${{ github.workspace }}
+      CCACHE_COMPRESS: "true"
+      CCACHE_DIR: ${{ github.workspace }}/.ccache
+      CCACHE_MAXSIZE: 4G
+      CCACHE_NOHASHDIR: "true"
+      MOBILEGL_CMAKE_COMPILER_LAUNCHER: ccache
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Set artifact metadata
+        run: |
+          echo "date_today=$(date +'%Y-%m-%d')" >> "$GITHUB_ENV"
+
+      - name: Set up JDK
+        uses: actions/setup-java@v5
+        with:
+          distribution: zulu
+          java-version: '17'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v6
+        with:
+          gradle-version: 8.10.2
+
+      - name: Restore ccache
+        uses: actions/cache@v5
+        with:
+          path: .ccache
+          key: ${{ runner.os }}-apk-${{ github.job }}-ccache-${{ github.ref_name }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ runner.os }}-apk-${{ github.job }}-ccache-${{ github.ref_name }}-
+            ${{ runner.os }}-apk-${{ github.job }}-ccache-
+
+      - name: Install ccache
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y ccache
+          ccache --version
+
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v4
+        with:
+          accept-android-sdk-licenses: false
+
+      - name: Accept Android SDK licenses
+        run: yes | sdkmanager --licenses >/dev/null
+
+      - name: Install Android NDK
+        run: |
+          sdkmanager "ndk;27.3.13750724"
+          echo "ndk.dir=$ANDROID_HOME/ndk/27.3.13750724" >> android-plugin/local.properties
+
+      - name: Update glslang external sources
+        working-directory: 3rdparty/glslang
+        run: python update_glslang_sources.py
+
+      - name: Build plugin APK
+        run: gradle --no-daemon -p android-plugin :app:assemblePluginRelease -Pmobilegl.apkSuffix="${GITHUB_SHA}" -Pmobilegl.logLevel=MOBILEGL_LOG_LEVEL_INFO --parallel --max-workers "$(nproc)"
+        env:
+          SIGNING_STORE_PASSWORD: ${{ secrets.SIGNING_STORE_PASSWORD }}
+          SIGNING_KEY_ALIAS: ${{ secrets.SIGNING_KEY_ALIAS }}
+          SIGNING_KEY_PASSWORD: ${{ secrets.SIGNING_KEY_PASSWORD }}
+
+      - name: Download ANGLE x86_64 libraries
+        run: |
+          angle_dir="android-plugin/app/src/trace/jniLibs/x86_64"
+          rm -rf "${angle_dir}"
+          mkdir -p "${angle_dir}"
+
+          package_angle_variant() {
+            variant="$1"
+            commit="$2"
+            egl_sha="$3"
+            gles_sha="$4"
+            source_dir="${RUNNER_TEMP}/mobilegl-angle-${variant}"
+            base="https://raw.githubusercontent.com/FCL-Team/FoldCraftLauncher/${commit}/FCLauncher/src/main/jniLibs/x86_64"
+            mkdir -p "${source_dir}"
+            curl -L --fail --retry 3 -o "${source_dir}/libEGL_angle.so" "${base}/libEGL_angle.so"
+            curl -L --fail --retry 3 -o "${source_dir}/libGLESv2_angle.so" "${base}/libGLESv2_angle.so"
+            echo "${egl_sha}  ${source_dir}/libEGL_angle.so" | sha256sum -c -
+            echo "${gles_sha}  ${source_dir}/libGLESv2_angle.so" | sha256sum -c -
+            for library in libEGL_angle libGLESv2_angle; do
+              filename="${library}_${variant}.so"
+              cp "${source_dir}/${library}.so" "${angle_dir}/${filename}"
+            done
+          }
+
+          package_angle_variant \
+            ec889e6ea831 \
+            f2a3d510dffd8f6540a52e1a7d0c5787d151075b \
+            c41828768d089899fa058ec0bee711a91be88347f29bdb935223da6be1149c40 \
+            e4f820d99f94365c66df868c7740fef142fe5c0cd7c941790a9e30638857ca4d
+          package_angle_variant \
+            90a62123d794 \
+            bdcc96ac11c79001018ae4375eb73cb54a9f682f \
+            d0f4298ccc770cc801fc52e21733521646161e8a4adb3bd0052d9a1b57ee0ca8 \
+            66fdc867e552192d553d59095ea2e3cef4829de65c356f1fd826027b1905972e
+
+      - name: Build retrace APK
+        run: gradle --no-daemon -p android-plugin :app:assembleTraceRelease -Pmobilegl.apkSuffix="${GITHUB_SHA}" -Pmobilegl.abis=all -Pmobilegl.debuggableRelease=true -Pmobilegl.logLevel=MOBILEGL_LOG_LEVEL_INFO --parallel --max-workers "$(nproc)"
+        env:
+          SIGNING_STORE_PASSWORD: ${{ secrets.SIGNING_STORE_PASSWORD }}
+          SIGNING_KEY_ALIAS: ${{ secrets.SIGNING_KEY_ALIAS }}
+          SIGNING_KEY_PASSWORD: ${{ secrets.SIGNING_KEY_PASSWORD }}
+
+      - name: Show ccache stats
+        if: always()
+        run: ccache --show-stats
+
+      - name: Verify APK metadata and packaging
+        run: |
+          AAPT2="$(find "$ANDROID_HOME/build-tools" -name aapt2 -type f | sort -V | tail -n 1)"
+          plugin_apk="android-plugin/app/build/outputs/apk/plugin/release/MobileGL-plugin-release-${GITHUB_SHA}.apk"
+          trace_apk="android-plugin/app/build/outputs/apk/trace/release/MobileGL-plugin-trace-release-${GITHUB_SHA}.apk"
+          test -f "${plugin_apk}"
+          test -f "${trace_apk}"
+          bash .github/scripts/validate-plugin-apks.sh "$AAPT2" "$plugin_apk" "$trace_apk"
+
+      - name: Verify signed APKs
+        run: |
+          APKSIGNER="$(find "$ANDROID_HOME/build-tools" -name apksigner -type f | sort -V | tail -n 1)"
+          mapfile -t APKS < <(printf '%s\n' \
+            "android-plugin/app/build/outputs/apk/plugin/release/MobileGL-plugin-release-${GITHUB_SHA}.apk" \
+            "android-plugin/app/build/outputs/apk/trace/release/MobileGL-plugin-trace-release-${GITHUB_SHA}.apk")
+          for APK in "${APKS[@]}"; do
+            if [[ ! -f "$APK" ]]; then
+              echo "::error::Expected release APK was not produced: $APK"
+              exit 1
+            fi
+          done
+
+          for APK in "${APKS[@]}"; do
+            if [[ "$APK" == *-unsigned.apk ]]; then
+              echo "::error::Unsigned release APK produced: $APK"
+              exit 1
+            fi
+            "$APKSIGNER" verify --verbose "$APK"
+          done
+
+      - name: Upload plugin APK
+        uses: actions/upload-artifact@v7
+        with:
+          name: MobileGL-plugin-${{ env.date_today }}-${{ github.sha }}
+          path: android-plugin/app/build/outputs/apk/plugin/release/MobileGL-plugin-release-${{ github.sha }}.apk
+          archive: false
+          if-no-files-found: error
+
+      - name: Upload retrace APK
+        uses: actions/upload-artifact@v7
+        with:
+          name: MobileGL-retrace-apk-${{ env.date_today }}-${{ github.sha }}
+          path: android-plugin/app/build/outputs/apk/trace/release/MobileGL-plugin-trace-release-${{ github.sha }}.apk
+          archive: false
+          if-no-files-found: error
+
+  trace-cases:
+    name: trace case matrix
+    runs-on: ubuntu-latest
+    needs: build
+    outputs:
+      android: ${{ steps.trace-cases.outputs.android }}
+      names: ${{ steps.trace-cases.outputs.names }}
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Load trace cases
+        id: trace-cases
+        run: |
+          echo "android=$(python3 tools/trace_replay/trace_cases.py --ci --format github-apk)" >> "$GITHUB_OUTPUT"
+          echo "names=$(python3 tools/trace_replay/trace_cases.py --ci --format names)" >> "$GITHUB_OUTPUT"
+
+  trace-fixtures:
+    name: trace fixture (${{ matrix.case }})
+    runs-on: ubuntu-latest
+    needs: trace-cases
+    strategy:
+      fail-fast: false
+      max-parallel: 4
+      matrix:
+        case: ${{ fromJSON(needs.trace-cases.outputs.names) }}
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Fetch trace fixture
+        run: bash .github/scripts/fetch-trace-fixture-lfs.sh '${{ matrix.case }}'
+
+      - name: Stage trace fixture
+        run: |
+          safe_case="$(printf '%s' '${{ matrix.case }}' | sed 's/[^A-Za-z0-9._-]/_/g')"
+          stage_dir="trace-fixtures/${safe_case}"
+          mkdir -p "${stage_dir}"
+          python3 tools/trace_replay/trace_cases.py --format fixture-files --case '${{ matrix.case }}' |
+            while IFS= read -r file; do
+              cp "${file}" "${stage_dir}/"
+            done
+
+      - name: Upload trace fixture
+        uses: actions/upload-artifact@v7
+        with:
+          name: MobileGL-trace-fixture-${{ matrix.case }}
+          path: trace-fixtures/**
+          if-no-files-found: error
+
+  android-avd:
+    name: android avd image
+    runs-on: ubuntu-latest
+    env:
+      AVD_NAME: mobilegl-ci
+      ANDROID_AVD_HOME: ${{ github.workspace }}/.android/avd
+      ANDROID_HOME: ${{ github.workspace }}/.android/sdk
+      ANDROID_SDK_ROOT: ${{ github.workspace }}/.android/sdk
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v4
+        with:
+          accept-android-sdk-licenses: false
+
+      - name: Accept Android SDK licenses
+        run: yes | sdkmanager --licenses >/dev/null
+
+      - name: Restore Android AVD cache
+        id: android-avd-cache
+        uses: actions/cache@v5
+        with:
+          path: |
+            ${{ env.ANDROID_AVD_HOME }}
+            ${{ env.ANDROID_SDK_ROOT }}/emulator
+            ${{ env.ANDROID_SDK_ROOT }}/platform-tools
+            ${{ env.ANDROID_SDK_ROOT }}/platforms/android-35
+            ${{ env.ANDROID_SDK_ROOT }}/system-images/android-35/google_apis/x86_64
+          key: ${{ runner.os }}-mobilegl-avd-api35-google_apis-x86_64-pixel_6-v2-${{ hashFiles('android-plugin/run-avd-ci.sh') }}
+
+      - name: Create AVD
+        if: steps.android-avd-cache.outputs.cache-hit != 'true'
+        run: |
+          sh android-plugin/run-avd-ci.sh create \
+            --api-level 35 \
+            --target google_apis \
+            --arch x86_64 \
+            --profile pixel_6 \
+            --avd-name "${AVD_NAME}"
+
+  retrace:
+    name: retrace (${{ matrix.backend.name }}, ${{ matrix.case.name }})
+    runs-on: ubuntu-latest
+    needs:
+      - build
+      - android-avd
+      - trace-cases
+      - trace-fixtures
+    if: ${{ always() && needs.build.result == 'success' && needs.android-avd.result == 'success' && needs.trace-cases.result == 'success' }}
+    timeout-minutes: 75
+    env:
+      AVD_NAME: mobilegl-ci
+      ANDROID_AVD_HOME: ${{ github.workspace }}/.android/avd
+      ANDROID_HOME: ${{ github.workspace }}/.android/sdk
+      ANDROID_SDK_ROOT: ${{ github.workspace }}/.android/sdk
+    strategy:
+      fail-fast: false
+      max-parallel: 4
+      matrix:
+        backend:
+          - name: DirectGLES
+            gpu: software
+          - name: DirectVulkan
+            gpu: lavapipe
+        case: ${{ fromJSON(needs.trace-cases.outputs.android) }}
+    steps:
+      - name: Set Swap Space
+        uses: pierotofy/set-swap-space@v1.0
+        with:
+          swap-size-gb: 8
+
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Download trace fixture
+        uses: actions/download-artifact@v8
+        with:
+          name: MobileGL-trace-fixture-${{ matrix.case.name }}
+          path: trace-fixture-download
+
+      - name: Install trace fixture
+        run: |
+          mkdir -p tools/trace_replay/fixtures
+          find trace-fixture-download -type f -exec cp {} tools/trace_replay/fixtures/ \;
+
+      - name: Set artifact metadata
+        run: |
+          echo "date_today=$(date +'%Y-%m-%d')" >> "$GITHUB_ENV"
+          echo "EMULATOR_LOG=${RUNNER_TEMP}/mobilegl-emulator.log" >> "$GITHUB_ENV"
+          echo "EMULATOR_PID_FILE=${RUNNER_TEMP}/mobilegl-emulator.pid" >> "$GITHUB_ENV"
+
+      - name: Setup Android SDK
+        uses: android-actions/setup-android@v4
+        with:
+          accept-android-sdk-licenses: false
+
+      - name: Accept Android SDK licenses
+        run: yes | sdkmanager --licenses >/dev/null
+
+      - name: Restore Android AVD cache
+        id: android-avd-cache
+        uses: actions/cache/restore@v5
+        with:
+          path: |
+            ${{ env.ANDROID_AVD_HOME }}
+            ${{ env.ANDROID_SDK_ROOT }}/emulator
+            ${{ env.ANDROID_SDK_ROOT }}/platform-tools
+            ${{ env.ANDROID_SDK_ROOT }}/platforms/android-35
+            ${{ env.ANDROID_SDK_ROOT }}/system-images/android-35/google_apis/x86_64
+          key: ${{ runner.os }}-mobilegl-avd-api35-google_apis-x86_64-pixel_6-v2-${{ hashFiles('android-plugin/run-avd-ci.sh') }}
+
+      - name: Download retrace APK
+        uses: actions/download-artifact@v8
+        with:
+          name: MobileGL-plugin-trace-release-${{ github.sha }}.apk
+          path: android-retrace-apks
+
+      - name: Enable KVM
+        run: |
+          echo 'KERNEL=="kvm", GROUP="kvm", MODE="0666", OPTIONS+="static_node=kvm"' | sudo tee /etc/udev/rules.d/99-kvm4all.rules
+          sudo udevadm control --reload-rules
+          sudo udevadm trigger --name-match=kvm
+
+      - name: Create AVD
+        if: steps.android-avd-cache.outputs.cache-hit != 'true'
+        run: |
+          sh android-plugin/run-avd-ci.sh create \
+            --api-level 35 \
+            --target google_apis \
+            --arch x86_64 \
+            --profile pixel_6 \
+            --avd-name "${AVD_NAME}"
+
+      - name: Launch Emulator
+        run: |
+          sh android-plugin/run-avd-ci.sh start \
+            --avd-name "${AVD_NAME}" \
+            --gpu "${{ matrix.backend.gpu }}" \
+            --emulator-log "${EMULATOR_LOG}" \
+            --pid-file "${EMULATOR_PID_FILE}" \
+            --boot-timeout 300
+
+      - name: Retrace and validate
+        env:
+          MOBILEGL_USE_ANGLE: ${{ matrix.backend.name == 'DirectGLES' && '1' || '0' }}
+          MOBILEGL_TRACE_ANGLE_VARIANT: ${{ matrix.case.name == 'minecraft-1.21.4-fabric-iris-bliss-in-world' && '90a62123d794' || 'ec889e6ea831' }}
+          MOBILEGL_MAGMA_R11G11B10F_FALLBACK: ${{ matrix.backend.name == 'DirectVulkan' && '1' || '0' }}
+        run: |
+          apk_file="android-retrace-apks/MobileGL-plugin-trace-release-${GITHUB_SHA}.apk"
+          test -f "${apk_file}"
+          extra_retrace_args=()
+          # Bliss needs the newer signed ANGLE variant plus sampler mipmap
+          # min-filter downgrading on ANGLE llvmpipe.
+          if [ "${{ matrix.backend.name }}" = "DirectGLES" ] && [ "${{ matrix.case.name }}" = "minecraft-1.21.4-fabric-iris-bliss-in-world" ]; then
+            extra_retrace_args+=(--avoid-angle-llvmpipe-sampler-mipmap-min-filter)
+          fi
+          if [ "${{ matrix.case.coherent_as_flush || false }}" = "true" ]; then
+            extra_retrace_args+=(--coherent-as-flush)
+          fi
+
+          run_retrace() {
+            timeout "$(( ${{ matrix.case.timeout_seconds }} + 300 ))" sh android-plugin/trace-replay-ci.sh \
+              --apk-file "${apk_file}" \
+              --package top.mobilegl.plugin.trace \
+              --backend "${{ matrix.backend.name }}" \
+              --result-root android-retrace-result \
+              --fixture-root android-retrace-fixture \
+              --case "${{ matrix.case.name }}" \
+              --trace-archive "${{ matrix.case.trace_archive }}" \
+              --trace-file "${{ matrix.case.trace_file }}" \
+              --golden "${{ matrix.case.golden }}" \
+              --alternate-golden "${{ matrix.case.alternate_golden || '' }}" \
+              --target-call "${{ matrix.case.target_call }}" \
+              --width "${{ matrix.case.width }}" \
+              --height "${{ matrix.case.height }}" \
+              --ssim-threshold "${{ matrix.case.ssim_threshold || '0.99' }}" \
+              --crop-x "${{ matrix.case.crop_x }}" \
+              --crop-y "${{ matrix.case.crop_y }}" \
+              --crop-width "${{ matrix.case.crop_width }}" \
+              --crop-height "${{ matrix.case.crop_height }}" \
+              --timeout-seconds "${{ matrix.case.timeout_seconds }}" \
+              "${extra_retrace_args[@]}"
+          }
+
+          retrace_status=0
+          run_retrace || retrace_status=$?
+          if [ "${retrace_status}" -eq 75 ]; then
+            echo "::warning::Android emulator infrastructure failed; restarting it and retrying this retrace once."
+            sh android-plugin/run-avd-ci.sh stop \
+              --avd-name "${AVD_NAME}" \
+              --emulator-log "${EMULATOR_LOG}" \
+              --pid-file "${EMULATOR_PID_FILE}"
+            adb kill-server || true
+            sleep 2
+            sh android-plugin/run-avd-ci.sh start \
+              --avd-name "${AVD_NAME}" \
+              --gpu "${{ matrix.backend.gpu }}" \
+              --emulator-log "${EMULATOR_LOG}" \
+              --pid-file "${EMULATOR_PID_FILE}" \
+              --boot-timeout 300
+            run_retrace
+          elif [ "${retrace_status}" -ne 0 ]; then
+            exit "${retrace_status}"
+          fi
+
+      - name: Collect retrace summary inputs
+        if: always()
+        run: |
+          safe_case="$(printf '%s' '${{ matrix.case.name }}' | sed 's/[^A-Za-z0-9._-]/_/g')"
+          result_dir="android-retrace-result/${safe_case}-${{ matrix.backend.name }}"
+          mkdir -p "${result_dir}"
+          if [ -s "${{ matrix.case.golden }}" ]; then
+            cp "${{ matrix.case.golden }}" "${result_dir}/${safe_case}-${{ matrix.backend.name }}-golden.png"
+          fi
+          if [ -n "${{ matrix.case.alternate_golden || '' }}" ] && [ -s "${{ matrix.case.alternate_golden || '' }}" ]; then
+            cp "${{ matrix.case.alternate_golden || '' }}" "${result_dir}/${safe_case}-${{ matrix.backend.name }}-alternate-golden.png"
+          fi
+
+      - name: Collect emulator diagnostics
+        if: always()
+        run: |
+          mkdir -p android-retrace-result/diagnostics
+          adb devices -l > android-retrace-result/diagnostics/adb-devices.txt || true
+          timeout 30 adb logcat -d -t 1000 > android-retrace-result/diagnostics/logcat.txt || true
+          if [ -f "${EMULATOR_LOG}" ]; then
+            cp "${EMULATOR_LOG}" android-retrace-result/diagnostics/emulator.log
+          fi
+
+      - name: Stop Emulator
+        if: always()
+        run: |
+          sh android-plugin/run-avd-ci.sh stop \
+            --avd-name "${AVD_NAME}" \
+            --emulator-log "${EMULATOR_LOG}" \
+            --pid-file "${EMULATOR_PID_FILE}"
+
+      - name: Upload Android retrace result
+        if: always()
+        uses: actions/upload-artifact@v7
+        with:
+          name: MobileGL-android-retrace-result-${{ env.date_today }}-${{ github.sha }}-${{ matrix.backend.name }}-${{ matrix.case.name }}
+          path: android-retrace-result/**
+          if-no-files-found: warn
+
+  retrace-summary:
+    name: retrace summary
+    runs-on: ubuntu-latest
+    needs: retrace
+    if: always()
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Set artifact metadata
+        run: |
+          echo "date_today=$(date +'%Y-%m-%d')" >> "$GITHUB_ENV"
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v7
+        with:
+          node-version: '22'
+
+      - name: Download Android retrace results
+        uses: actions/download-artifact@v8
+        with:
+          pattern: MobileGL-android-retrace-result-*
+          path: retrace-artifacts
+
+      - name: Render retrace summary
+        run: |
+          node tools/trace_replay/render_retrace_summary.mjs \
+            --input retrace-artifacts \
+            --output-dir android-retrace-summary \
+            --title "MobileGL Android retrace overview" \
+            --group-label "Android Emulator" \
+            --html mobilegl-android-retrace-overview.html
+
+      - name: Upload Android retrace summary
+        uses: actions/upload-artifact@v7
+        with:
+          path: android-retrace-summary/mobilegl-android-retrace-overview.html
+          archive: false
+          if-no-files-found: error
+
+  remove-artifact-clutter:
+    name: remove artifact clutter
+    runs-on: ubuntu-latest
+    needs: retrace-summary
+    if: always()
+    permissions:
+      actions: write
+    steps:
+      - name: Delete intermediate Android retrace artifacts
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          declare -A failed_cases=()
+          while IFS= read -r job_name; do
+            case_name="${job_name#retrace (*, }"
+            case_name="${case_name%)}"
+            failed_cases["${case_name}"]=1
+          done < <(
+            gh api --paginate "repos/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}/jobs?per_page=100" \
+              --jq '.jobs[] | select(.name | startswith("retrace (")) | select(.conclusion == "failure" or .conclusion == "cancelled" or .conclusion == "timed_out" or .conclusion == "action_required") | .name'
+          )
+
+          if ((${#failed_cases[@]})); then
+            echo "Retaining fixtures for failed retrace case(s):"
+            printf '  %s\n' "${!failed_cases[@]}"
+          else
+            echo "All retrace jobs succeeded; no fixtures need to be retained."
+          fi
+
+          deleted=0
+          retained=0
+          while IFS=$'\t' read -r artifact_id artifact_name; do
+            if [[ "${artifact_name}" == MobileGL-trace-fixture-* ]]; then
+              case_name="${artifact_name#MobileGL-trace-fixture-}"
+              if [[ -v "failed_cases[${case_name}]" ]]; then
+                echo "Retaining ${artifact_name} (${artifact_id}) for failed retrace."
+                ((retained += 1))
+                continue
+              fi
+            fi
+
+            echo "Deleting ${artifact_name} (${artifact_id})"
+            gh api --method DELETE "repos/${GITHUB_REPOSITORY}/actions/artifacts/${artifact_id}"
+            ((deleted += 1))
+          done < <(
+            gh api --paginate "repos/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}/artifacts?per_page=100" \
+              --jq '.artifacts[] | select(.name | startswith("MobileGL-trace-fixture-") or startswith("MobileGL-android-retrace-result-") or startswith("trace-fixture-") or startswith("retrace-result-")) | [.id, .name] | @tsv'
+          )
+
+          echo "Deleted ${deleted} intermediate Android artifact(s); retained ${retained} failed-retrace fixture(s)."

.github/workflows/test.yml

@@ -0,0 +1,573 @@
+name: Test
+
+on:
+  push:
+    branches:
+      - dev
+      - Feat/Backend-Direct-GLES
+      - Feat/Backend-Direct-Vulkan
+  workflow_dispatch:
+
+jobs:
+  build-linux:
+    runs-on: ubuntu-latest
+    env:
+      BUILD_DIR: build-linux
+      CCACHE_BASEDIR: ${{ github.workspace }}
+      CCACHE_COMPRESS: "true"
+      CCACHE_DIR: ${{ github.workspace }}/.ccache
+      CCACHE_MAXSIZE: 4G
+      CCACHE_NOHASHDIR: "true"
+
+    steps:
+      - name: Set Swap Space
+        uses: pierotofy/set-swap-space@v1.0
+        with:
+          swap-size-gb: 32
+
+      - name: Checkout repo
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Get CMake
+        uses: lukka/get-cmake@v4.3.3
+
+      - name: Restore ccache
+        uses: actions/cache@v5
+        with:
+          path: .ccache
+          key: ${{ runner.os }}-test-${{ github.job }}-ccache-${{ github.ref_name }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ github.job }}-ccache-${{ github.ref_name }}-
+            ${{ runner.os }}-test-${{ github.job }}-ccache-
+
+      - name: Prepare Vulkan SDK
+        uses: humbletim/setup-vulkan-sdk@v1.2.1
+        with:
+          vulkan-query-version: 1.4.304.1
+          vulkan-components: Vulkan-Headers, Vulkan-Loader
+          vulkan-use-cache: true
+
+      - name: Update glslang external sources
+        working-directory: 3rdparty/glslang
+        run: python update_glslang_sources.py
+
+      - name: Install build dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y ccache clang-20 clang++-20 lld-20 libc++-20-dev libc++abi-20-dev libvulkan-dev libegl1-mesa-dev libgles2-mesa-dev libgl1-mesa-dri mesa-vulkan-drivers ninja-build
+
+      - name: Show installed toolchain
+        run: |
+          ccache --version
+          clang-20 --version
+          clang++-20 --version
+          ld.lld-20 --version || ld.lld --version || true
+          dpkg -l 'libc++*' 'libegl*' 'libgles*' 'mesa*' 'vulkan*' || true
+
+      - name: Configure CMake
+        run: |
+          if [ "${{ secrets.ACTIONS_STEP_DEBUG }}" = "true" ]; then
+            BUILD_TYPE=Debug
+          else
+            BUILD_TYPE=Release
+          fi
+
+          cmake -S . -B "${BUILD_DIR}" -G Ninja \
+            -DCMAKE_C_COMPILER=clang-20 \
+            -DCMAKE_CXX_COMPILER=clang++-20 \
+            -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+            -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+            -DCMAKE_BUILD_TYPE="${BUILD_TYPE}" \
+            -DMOBILEGL_LOG_ACTIVE_LEVEL=MOBILEGL_LOG_LEVEL_INFO \
+            -DMOBILEGL_BUILD_TEST=ON \
+            -DMOBILEGL_BUILD_BENCHMARK=ON \
+            -DMOBILEGL_BUILD_TRACE_REPLAY=OFF \
+            -DBENCHMARK_DOWNLOAD_DEPENDENCIES=ON \
+            -DBENCHMARK_ENABLE_TESTING=OFF \
+            -DCMAKE_POLICY_VERSION_MINIMUM=3.5
+
+      - name: Build
+        run: cmake --build "${BUILD_DIR}" --parallel "$(nproc)"
+
+      - name: Show ccache stats
+        if: always()
+        run: ccache --show-stats
+
+      - name: Package Linux runtime
+        run: |
+          mkdir -p ci-artifacts
+          mapfile -t SHARED_LIBS < <(find "${BUILD_DIR}" -type f \( -name '*.so' -o -name '*.so.*' \) -print | sort)
+          tar \
+            --exclude='*/CMakeFiles' \
+            --exclude='*.o' \
+            --exclude='*.a' \
+            --exclude='*.ninja*' \
+            --exclude='build.ninja' \
+            --exclude='cmake_install.cmake' \
+            -czf ci-artifacts/mobilegl-linux-runtime.tgz \
+            "${BUILD_DIR}/CTestTestfile.cmake" \
+            "${BUILD_DIR}/MobileGL/MG_Test" \
+            "${BUILD_DIR}/MobileGL/MG_Benchmark" \
+            "${SHARED_LIBS[@]}"
+
+      - name: Upload Linux runtime
+        uses: actions/upload-artifact@v7
+        with:
+          name: mobilegl-linux-runtime
+          path: ci-artifacts/mobilegl-linux-runtime.tgz
+          if-no-files-found: error
+
+  test:
+    runs-on: ubuntu-latest
+    needs: build-linux
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Get CMake
+        uses: lukka/get-cmake@v4.3.3
+
+      - name: Install runtime dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libvulkan1 libegl1 libgles2 libgl1-mesa-dri mesa-vulkan-drivers
+
+      - name: Download Linux runtime
+        uses: actions/download-artifact@v8
+        with:
+          name: mobilegl-linux-runtime
+          path: .
+
+      - name: Unpack Linux runtime
+        run: tar -xzf mobilegl-linux-runtime.tgz
+
+      - name: Normalize CTest command paths
+        run: |
+          python - <<'PY'
+          from pathlib import Path
+          import re
+
+          for path in Path('build-linux').rglob('CTestTestfile.cmake'):
+              text = path.read_text()
+              text = re.sub(r'"[^"]*/cmake-[^"]*/bin/cmake"', '"cmake"', text)
+              path.write_text(text)
+          PY
+
+      - name: Test
+        working-directory: build-linux
+        run: |
+          if [ "${{ secrets.ACTIONS_STEP_DEBUG }}" = "true" ]; then
+            ctest -V -L unit --no-tests=error
+          else
+            ctest --output-on-failure -L unit --no-tests=error
+          fi
+
+  benchmark:
+    runs-on: ubuntu-latest
+    needs: build-linux
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Get CMake
+        uses: lukka/get-cmake@v4.3.3
+
+      - name: Install runtime dependencies
+        # libegl-mesa0 is the EGL vendor library itself: DriverBench brings up a
+        # real GL context, and libegl1 is only glvnd's dispatch. It normally
+        # arrives as a Recommends of libegl1, which is too quiet a dependency for
+        # the one job that needs a working driver.
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libvulkan1 libegl1 libegl-mesa0 libgles2 libgl1-mesa-dri mesa-vulkan-drivers
+
+      - name: Download Linux runtime
+        uses: actions/download-artifact@v8
+        with:
+          name: mobilegl-linux-runtime
+          path: .
+
+      - name: Unpack Linux runtime
+        run: tar -xzf mobilegl-linux-runtime.tgz
+
+      - name: Normalize CTest command paths
+        run: |
+          python - <<'PY'
+          from pathlib import Path
+          import re
+
+          for path in Path('build-linux').rglob('CTestTestfile.cmake'):
+              text = path.read_text()
+              text = re.sub(r'"[^"]*/cmake-[^"]*/bin/cmake"', '"cmake"', text)
+              path.write_text(text)
+          PY
+
+      - name: Benchmark
+        working-directory: build-linux
+        run: ctest -V -C Release -L benchmark --no-tests=error
+
+  build-retrace:
+    runs-on: ubuntu-latest
+    needs:
+      - build-linux
+      - test
+      - benchmark
+    env:
+      BUILD_DIR: build-retrace
+      CCACHE_BASEDIR: ${{ github.workspace }}
+      CCACHE_COMPRESS: "true"
+      CCACHE_DIR: ${{ github.workspace }}/.ccache
+      CCACHE_MAXSIZE: 4G
+      CCACHE_NOHASHDIR: "true"
+      MOBILEGL_LIBRARY: ${{ github.workspace }}/build-linux/libMobileGL.so
+
+    steps:
+      - name: Set Swap Space
+        uses: pierotofy/set-swap-space@v1.0
+        with:
+          swap-size-gb: 32
+
+      - name: Checkout repo
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Get CMake
+        uses: lukka/get-cmake@v4.3.3
+
+      - name: Restore ccache
+        uses: actions/cache@v5
+        with:
+          path: .ccache
+          key: ${{ runner.os }}-test-${{ github.job }}-ccache-${{ github.ref_name }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ runner.os }}-test-${{ github.job }}-ccache-${{ github.ref_name }}-
+            ${{ runner.os }}-test-${{ github.job }}-ccache-
+
+      - name: Prepare Vulkan SDK
+        uses: humbletim/setup-vulkan-sdk@v1.2.1
+        with:
+          vulkan-query-version: 1.4.304.1
+          vulkan-components: Vulkan-Headers, Vulkan-Loader
+          vulkan-use-cache: true
+
+      - name: Update glslang external sources
+        working-directory: 3rdparty/glslang
+        run: python update_glslang_sources.py
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y ccache clang-20 clang++-20 lld-20 libc++-20-dev libc++abi-20-dev libvulkan-dev libegl1-mesa-dev libgles2-mesa-dev libgl1-mesa-dri mesa-vulkan-drivers ninja-build
+
+      - name: Show installed toolchain
+        run: |
+          ccache --version
+          clang-20 --version
+          clang++-20 --version
+          ld.lld-20 --version || ld.lld --version || true
+          dpkg -l 'libc++*' 'libegl*' 'libgles*' 'mesa*' 'vulkan*' || true
+
+      - name: Download Linux runtime
+        uses: actions/download-artifact@v8
+        with:
+          name: mobilegl-linux-runtime
+          path: .
+
+      - name: Unpack Linux runtime
+        run: |
+          tar -xzf mobilegl-linux-runtime.tgz
+          test -f "${MOBILEGL_LIBRARY}"
+
+      - name: Configure CMake
+        run: |
+          if [ "${{ secrets.ACTIONS_STEP_DEBUG }}" = "true" ]; then
+            BUILD_TYPE=Debug
+          else
+            BUILD_TYPE=Release
+          fi
+
+          cmake -S . -B "${BUILD_DIR}" -G Ninja \
+            -DCMAKE_C_COMPILER=clang-20 \
+            -DCMAKE_CXX_COMPILER=clang++-20 \
+            -DCMAKE_C_COMPILER_LAUNCHER=ccache \
+            -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
+            -DCMAKE_BUILD_TYPE="${BUILD_TYPE}" \
+            -DMOBILEGL_LOG_ACTIVE_LEVEL=MOBILEGL_LOG_LEVEL_INFO \
+            -DMOBILEGL_BUILD_TEST=OFF \
+            -DMOBILEGL_BUILD_BENCHMARK=OFF \
+            -DMOBILEGL_BUILD_TRACE_REPLAY=ON \
+            -DMOBILEGL_TRACE_REPLAY_MOBILEGL_LIBRARY="${MOBILEGL_LIBRARY}" \
+            -DCMAKE_POLICY_VERSION_MINIMUM=3.5
+
+      - name: Build trace replay
+        run: cmake --build "${BUILD_DIR}" --target mobilegl_trace_replay --parallel "$(nproc)"
+
+      - name: Show ccache stats
+        if: always()
+        run: ccache --show-stats
+
+      - name: Normalize CTest command paths
+        run: |
+          python - <<'PY'
+          from pathlib import Path
+          import re
+
+          for path in Path('build-retrace').rglob('CTestTestfile.cmake'):
+              text = path.read_text()
+              text = re.sub(r'"[^"]*/cmake-[^"]*/bin/cmake"', '"cmake"', text)
+              path.write_text(text)
+          PY
+
+      - name: Package trace replay
+        run: |
+          mkdir -p ci-artifacts
+          tar -czf ci-artifacts/mobilegl-trace-replay.tgz \
+            build-retrace/tools/trace_replay/mobilegl_trace_replay \
+            build-retrace/tools/trace_replay/CTestTestfile.cmake
+
+      - name: Upload trace replay
+        uses: actions/upload-artifact@v7
+        with:
+          name: mobilegl-trace-replay
+          path: ci-artifacts/mobilegl-trace-replay.tgz
+          if-no-files-found: error
+
+  trace-cases:
+    name: trace case matrix
+    runs-on: ubuntu-latest
+    needs:
+      - test
+      - benchmark
+    outputs:
+      names: ${{ steps.trace-cases.outputs.names }}
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Load trace cases
+        id: trace-cases
+        run: echo "names=$(python3 tools/trace_replay/trace_cases.py --ci --format names)" >> "$GITHUB_OUTPUT"
+
+  trace-fixtures:
+    name: trace fixture (${{ matrix.case }})
+    runs-on: ubuntu-latest
+    needs: trace-cases
+    strategy:
+      fail-fast: false
+      max-parallel: 4
+      matrix:
+        case: ${{ fromJSON(needs.trace-cases.outputs.names) }}
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Fetch trace fixture
+        run: bash .github/scripts/fetch-trace-fixture-lfs.sh '${{ matrix.case }}'
+
+      - name: Stage trace fixture
+        run: |
+          safe_case="$(printf '%s' '${{ matrix.case }}' | sed 's/[^A-Za-z0-9._-]/_/g')"
+          stage_dir="trace-fixtures/${safe_case}"
+          mkdir -p "${stage_dir}"
+          python3 tools/trace_replay/trace_cases.py --format fixture-files --case '${{ matrix.case }}' |
+            while IFS= read -r file; do
+              cp "${file}" "${stage_dir}/"
+            done
+
+      - name: Upload trace fixture
+        uses: actions/upload-artifact@v7
+        with:
+          name: trace-fixture-${{ matrix.case }}
+          path: trace-fixtures/**
+          if-no-files-found: error
+
+  retrace:
+    name: retrace (${{ matrix.backend }}, ${{ matrix.case }})
+    runs-on: ubuntu-latest
+    needs:
+      - build-linux
+      - build-retrace
+      - trace-cases
+      - trace-fixtures
+    if: ${{ always() && needs.build-linux.result == 'success' && needs.build-retrace.result == 'success' && needs.trace-cases.result == 'success' }}
+    strategy:
+      fail-fast: false
+      max-parallel: 4
+      matrix:
+        backend:
+          - DirectGLES
+          - DirectVulkan
+        case: ${{ fromJSON(needs.trace-cases.outputs.names) }}
+
+    steps:
+      - name: Set Swap Space
+        uses: pierotofy/set-swap-space@v1.0
+        with:
+          swap-size-gb: 16
+
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Download trace fixture
+        uses: actions/download-artifact@v8
+        with:
+          name: trace-fixture-${{ matrix.case }}
+          path: trace-fixture-download
+
+      - name: Install trace fixture
+        run: |
+          mkdir -p tools/trace_replay/fixtures
+          find trace-fixture-download -type f -exec cp {} tools/trace_replay/fixtures/ \;
+
+      - name: Get CMake
+        uses: lukka/get-cmake@v4.3.3
+
+      - name: Install runtime dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libvulkan1 libegl1-mesa-dev libgles2-mesa-dev libgl1-mesa-dri mesa-vulkan-drivers
+          test -e /usr/lib/x86_64-linux-gnu/libEGL.so
+          test -e /usr/lib/x86_64-linux-gnu/libGLESv2.so
+
+      - name: Download Linux runtime
+        uses: actions/download-artifact@v8
+        with:
+          name: mobilegl-linux-runtime
+          path: .
+
+      - name: Download trace replay
+        uses: actions/download-artifact@v8
+        with:
+          name: mobilegl-trace-replay
+          path: .
+
+      - name: Unpack retrace runtime
+        run: |
+          tar -xzf mobilegl-linux-runtime.tgz
+          tar -xzf mobilegl-trace-replay.tgz
+          test -f build-linux/libMobileGL.so
+          test -f build-retrace/tools/trace_replay/mobilegl_trace_replay
+
+      - name: Retrace and validate
+        working-directory: build-retrace/tools/trace_replay
+        run: |
+          if [ '${{ matrix.backend }}' = 'DirectVulkan' ]; then
+            export MOBILEGL_MAGMA_R11G11B10F_FALLBACK=1
+          fi
+          # The blended depth-write quirk auto-enables only on Qualcomm, which no CI
+          # runner has, so force it on for the OIT case it exists to fix. ForceOn
+          # bypasses only the vendor gate, so this exercises the real strip on
+          # lavapipe. The Android AVD lane deliberately leaves it off, keeping the
+          # unstripped path covered for the same trace.
+          if [ '${{ matrix.backend }}' = 'DirectVulkan' ] \
+             && [ '${{ matrix.case }}' = 'improved-transparency-minecraft-26.3' ]; then
+            export MOBILEGL_MAGMA_DISABLE_BLENDED_DEPTH_WRITE=1
+          fi
+          ctest -V --no-tests=error -R '^MobileGLTraceReplay\.${{ matrix.case }}\.${{ matrix.backend }}$'
+
+      - name: Upload actual image
+        if: always()
+        uses: actions/upload-artifact@v7
+        with:
+          name: retrace-result-${{ matrix.backend }}-${{ matrix.case }}
+          path: |
+            build-retrace/tools/trace_replay/${{ matrix.case }}/actual-images/**
+            build-retrace/tools/trace_replay/${{ matrix.case }}/${{ matrix.backend }}/output/**
+          if-no-files-found: warn
+
+  retrace-summary:
+    name: retrace summary
+    runs-on: ubuntu-latest
+    needs: retrace
+    if: ${{ always() && needs.retrace.result != 'skipped' }}
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v6
+
+      - name: Set artifact metadata
+        run: |
+          echo "date_today=$(date +'%Y-%m-%d')" >> "$GITHUB_ENV"
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v7
+        with:
+          node-version: '22'
+
+      - name: Download retrace results
+        uses: actions/download-artifact@v8
+        with:
+          pattern: retrace-result-*
+          path: retrace-artifacts
+
+      - name: Render retrace summary
+        run: |
+          node tools/trace_replay/render_retrace_summary.mjs \
+            --input retrace-artifacts \
+            --output-dir retrace-summary \
+            --title "MobileGL Linux retrace overview" \
+            --group-label "Linux" \
+            --html mobilegl-linux-retrace-overview.html
+
+      - name: Upload retrace summary
+        uses: actions/upload-artifact@v7
+        with:
+          path: retrace-summary/mobilegl-linux-retrace-overview.html
+          archive: false
+          if-no-files-found: error
+
+  remove-artifact-clutter:
+    name: remove artifact clutter
+    runs-on: ubuntu-latest
+    needs: retrace-summary
+    if: always()
+    permissions:
+      actions: write
+    steps:
+      - name: Delete intermediate Linux retrace artifacts
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          declare -A failed_cases=()
+          while IFS= read -r job_name; do
+            case_name="${job_name#retrace (*, }"
+            case_name="${case_name%)}"
+            failed_cases["${case_name}"]=1
+          done < <(
+            gh api --paginate "repos/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}/jobs?per_page=100" \
+              --jq '.jobs[] | select(.name | startswith("retrace (")) | select(.conclusion == "failure" or .conclusion == "cancelled" or .conclusion == "timed_out" or .conclusion == "action_required") | .name'
+          )
+
+          if ((${#failed_cases[@]})); then
+            echo "Retaining fixtures for failed retrace case(s):"
+            printf '  %s\n' "${!failed_cases[@]}"
+          else
+            echo "All retrace jobs succeeded; no fixtures need to be retained."
+          fi
+
+          deleted=0
+          retained=0
+          while IFS=$'\t' read -r artifact_id artifact_name; do
+            if [[ "${artifact_name}" == trace-fixture-* ]]; then
+              case_name="${artifact_name#trace-fixture-}"
+              if [[ -v "failed_cases[${case_name}]" ]]; then
+                echo "Retaining ${artifact_name} (${artifact_id}) for failed retrace."
+                ((retained += 1))
+                continue
+              fi
+            fi
+
+            echo "Deleting ${artifact_name} (${artifact_id})"
+            gh api --method DELETE "repos/${GITHUB_REPOSITORY}/actions/artifacts/${artifact_id}"
+            ((deleted += 1))
+          done < <(
+            gh api --paginate "repos/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}/artifacts?per_page=100" \
+              --jq '.artifacts[] | select(.name | startswith("trace-fixture-") or startswith("retrace-result-")) | [.id, .name] | @tsv'
+          )
+
+          echo "Deleted ${deleted} intermediate Linux artifact(s); retained ${retained} failed-retrace fixture(s)."

.gitignore

@@ -3,3 +3,27 @@
 ################################################################################
 
 /build
+.cxx
+/.vs
+/out/build
+CMakeSettings.json
+MobileGL/MG_Test/out
+MobileGL/MG_Test/.vs
+MobileGLCodeManager.*
+MobileGLCodeManager
+.vscode
+.clangd
+MobileGL/MG_Test/build
+/build_*
+/cmake-build*
+.idea
+MobileGL/MG*/build*
+MobileGL/MG*/cmake-build*
+/android-plugin/.gradle
+/android-plugin/build
+/android-plugin/app/build
+/android-plugin/app/src/trace/jniLibs
+/android-plugin/local.properties
+tools/trace_replay/work/
+__pycache__/
+*.py[cod]

.gitmodules

@@ -0,0 +1,39 @@
+[submodule "3rdparty/DiligentCore"]
+	path = 3rdparty/DiligentCore
+	url = https://github.com/DiligentGraphics/DiligentCore.git
+[submodule "3rdparty/glslang"]
+	path = 3rdparty/glslang
+	url = https://github.com/MobileGL-Dev/glslang.git
+[submodule "3rdparty/SPIRV-Cross"]
+	path = 3rdparty/SPIRV-Cross
+	url = https://github.com/KhronosGroup/SPIRV-Cross.git
+[submodule "include/FastSTL"]
+	path = include/FastSTL
+	url = https://github.com/MobileGL-Dev/FastSTL.git
+[submodule "3rdparty/tracy"]
+	path = 3rdparty/tracy
+	url = https://github.com/wolfpld/tracy.git
+[submodule "3rdparty/xxHash"]
+	path = 3rdparty/xxHash
+	url = https://github.com/Cyan4973/xxHash.git
+[submodule "3rdparty/VulkanMemoryAllocator"]
+	path = 3rdparty/VulkanMemoryAllocator
+	url = https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git
+[submodule "3rdparty/Vulkan-Utility-Libraries"]
+	path = 3rdparty/Vulkan-Utility-Libraries
+	url = https://github.com/KhronosGroup/Vulkan-Utility-Libraries.git
+[submodule "3rdparty/Vulkan-Headers"]
+	path = 3rdparty/Vulkan-Headers
+	url = https://github.com/KhronosGroup/Vulkan-Headers.git
+[submodule "3rdparty/SPIRV-Reflect"]
+	path = 3rdparty/SPIRV-Reflect
+	url = https://github.com/KhronosGroup/SPIRV-Reflect.git
+[submodule "3rdparty/apitrace"]
+	path = 3rdparty/apitrace
+	url = https://github.com/MobileGL-Dev/apitrace.git
+[submodule "3rdparty/asio"]
+	path = 3rdparty/asio
+	url = https://github.com/chriskohlhoff/asio.git
+[submodule "3rdparty/libfork"]
+	path = 3rdparty/libfork
+	url = https://github.com/ConorWilliams/libfork.git

CMakeLists.txt

@@ -2,123 +2,592 @@ cmake_minimum_required(VERSION 3.22.1)
 
 project("MobileGL")
 
+option(MOBILEGL_BUILD_TEST        "Build MobileGL tests"                             ON )
+option(MOBILEGL_BUILD_BENCHMARK   "Build MobileGL benchmarks"                        ON )
+# Headless end-to-end GPU scenarios (MobileGL/MG_IntegrationTest). They need a
+# real GPU/ICD to do anything, so they are off by default for CI; every scenario
+# skips cleanly where there is none. Registered under the `integration-gpu`
+# ctest label so a run can select or exclude them.
+option(MOBILEGL_BUILD_INTEGRATION_TEST "Build MobileGL headless GPU integration tests" OFF)
+option(MOBILEGL_FORCE_RELEASE_OPT "Enable Release optimization flags in Debug build" ON )
+option(MOBILEGL_ENABLE_TRACY      "Enable tracy for profiling"                       OFF)
+option(MOBILEGL_BUILD_TRACE_REPLAY "Build desktop apitrace replay runner"            OFF)
+option(MOBILEGL_TRACE_ANGLE_VARIANTS "Enable signed trace-APK ANGLE variant loading" OFF)
+option(MOBILEGL_IOS               "Build MobileGL for iOS instead of macOS when APPLE is set" OFF)
+set(MOBILEGL_LOG_ACTIVE_LEVEL "MOBILEGL_LOG_LEVEL_INFO" CACHE STRING "MobileGL active log level macro")
+set(MOBILEGL_VULKAN_LIBRARY "" CACHE FILEPATH "Vulkan loader/MoltenVK library to link for iOS builds")
+
+if (ANDROID)
+    set(MOBILEGL_BUILD_TEST       OFF CACHE BOOL "Build MobileGL tests"      FORCE)
+    set(MOBILEGL_BUILD_BENCHMARK  OFF CACHE BOOL "Build MobileGL benchmarks" FORCE)
+endif()
+
+option(MOBILEGL_ENABLE_LTO "Build with ThinLTO/IPO" OFF)
+
+if ((NOT CMAKE_BUILD_TYPE STREQUAL "Debug" OR MOBILEGL_FORCE_RELEASE_OPT) AND MOBILEGL_ENABLE_LTO)
+    # Check if ThinLTO or LTO is suppported
+    include(CheckIPOSupported)
+    include(CheckCCompilerFlag)
+    include(CheckCXXCompilerFlag)
+
+    check_ipo_supported(RESULT LTOSupported OUTPUT LTOError)
+
+    check_c_compiler_flag("-flto" HAS_LTO_C)
+    check_cxx_compiler_flag("-flto" HAS_LTO_CXX)
+
+    if (LTOSupported OR (HAS_LTO_C AND HAS_LTO_CXX))
+        # Check ThinLTO
+        check_c_compiler_flag("-flto=thin" HAS_THINLTO_C)
+        check_cxx_compiler_flag("-flto=thin" HAS_THINLTO_CXX)
+        if (HAS_THINLTO_C AND HAS_THINLTO_CXX)
+            message(STATUS "ThinLTO supported, using -flto=thin")
+
+            add_compile_options(-flto=thin)
+            add_link_options(-flto=thin)
+        else()
+            # ThinLTO is not supported
+            message(STATUS "ThinLTO not available, fallback to CMAKE IPO")
+            set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+        endif()
+    else()
+        message(STATUS "IPO not supported: ${LTOError}")
+    endif()
+
+    if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang" AND NOT MATCHES "AppleClang")
+        add_compile_options(-O3 -ffunction-sections -fdata-sections)
+        add_link_options(-Wl,--gc-sections)
+    elseif (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+#        add_compile_options(/O2)
+    else ()
+        add_compile_options(-O2)
+    endif()
+endif()
+
+if (CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
+    add_compile_options(/Zc:preprocessor)
+    add_compile_options(/Zc:__cplusplus)
+endif()
+
 enable_language(CXX)
 
-set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD 23)
 
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -w -fvisibility=hidden -funwind-tables -g -D_THREAD_SAFE -fPIC -stdlib=libc++")
+set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
-#set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w -g -std=gnu99 -funwind-tables -O3 -fvisibility=hidden")
+set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 
-set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static-libstdc++")
+if (MSVC)
+    set(CMAKE_CXX_FLAGS "/EHsc ${CMAKE_CXX_FLAGS}")
+endif()
 
-set(CMAKE_ANDROID_STL_TYPE c++_static)
+# Generate MGGitHash.h
+execute_process(
+    COMMAND git rev-parse HEAD
+    WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+    OUTPUT_VARIABLE GIT_COMMIT_HASH_FULL
+    OUTPUT_STRIP_TRAILING_WHITESPACE
+)
 
-#set(CMAKE_BUILD_TYPE Release)
+string(SUBSTRING "${GIT_COMMIT_HASH_FULL}" 0 7 GIT_COMMIT_HASH_SHORT)
 
-set(PROFILING OFF)
+configure_file(
+    ${CMAKE_SOURCE_DIR}/MobileGL/MG_Util/Miscellany/MGGitHash.h.in
+    ${CMAKE_BINARY_DIR}/generated/MGGitHash.h
+    @ONLY
+)
 
-find_library(GLSLANG_LIB glslang PATHS ${CMAKE_SOURCE_DIR}/libraries/arm64-v8a/)
+include_directories(${CMAKE_BINARY_DIR}/generated)
+
+set(ENABLE_RTTI                ON  CACHE BOOL "Enables RTTI (will be took by glslang)" FORCE)
+
+set(ENABLE_GLSLANG_BINARIES    OFF CACHE BOOL "Enable glslangValidator/spirv-remap" FORCE)
+set(ENABLE_SPVREMAPPER         OFF CACHE BOOL "Enable SPVRemapper" FORCE)
+set(ENABLE_OPT                 ON  CACHE BOOL "Enable SPIRV-Tools opt usage in glslang" FORCE)
+set(BUILD_EXTERNAL             ON  CACHE BOOL "Build external deps in External/" FORCE)
+set(ENABLE_GLSLANG_INSTALL     OFF CACHE BOOL "Install glslang targets" FORCE)
+
+set(SPIRV_CROSS_C_API          ON  CACHE BOOL "Enable C API" FORCE)
+set(SPIRV_CROSS_ENABLE_GLSL    ON  CACHE BOOL "Enable GLSL backend" FORCE)
+set(SPIRV_CROSS_ENABLE_HLSL    OFF CACHE BOOL "Disable HLSL backend" FORCE)
+set(SPIRV_CROSS_ENABLE_MSL     OFF CACHE BOOL "Disable MSL backend" FORCE)
+set(SPIRV_CROSS_ENABLE_CPP     OFF CACHE BOOL "Disable C++ API target" FORCE)
+set(SPIRV_CROSS_CLI            OFF CACHE BOOL "Disable CLI binary" FORCE)
+set(SPIRV_CROSS_STATIC         ON  CACHE BOOL "Prefer static libs" FORCE)
+
+set(SPIRV_REFLECT_EXECUTABLE     OFF CACHE BOOL "Build spirv-reflect executable" FORCE)
+set(SPIRV_REFLECT_STATIC_LIB     ON  CACHE BOOL "Build a SPIRV-Reflect static library" FORCE)
+set(SPIRV_REFLECT_BUILD_TESTS    OFF CACHE BOOL "Build the SPIRV-Reflect test suite" FORCE)
+set(SPIRV_REFLECT_ENABLE_ASSERTS OFF CACHE BOOL  "Enable asserts for debugging" FORCE)
+set(SPIRV_REFLECT_ENABLE_ASAN    OFF CACHE BOOL "Use address sanitization" FORCE)
+set(SPIRV_REFLECT_INSTALL        OFF CACHE BOOL "Whether to install" FORCE)
+
+# add_subdirectory(3rdparty/DiligentCore)
+add_subdirectory(3rdparty/glslang)
+add_subdirectory(3rdparty/SPIRV-Cross)
+add_subdirectory(3rdparty/VulkanMemoryAllocator)
+add_subdirectory(3rdparty/Vulkan-Headers)
+add_subdirectory(3rdparty/Vulkan-Utility-Libraries)
+add_subdirectory(3rdparty/SPIRV-Reflect)
+
+set(XXHASH_BUILD_XXHSUM OFF)
+option(BUILD_SHARED_LIBS OFF)
+add_subdirectory(3rdparty/xxHash/build/cmake xxhash_build EXCLUDE_FROM_ALL)
+
+set(TRACY_ENABLE ${MOBILEGL_ENABLE_TRACY} CACHE BOOL "Enable Tracy, this is an internal variable" FORCE)
+
+if (TRACY_ENABLE)
+    set(TRACY_ON_DEMAND            ON  CACHE BOOL "Enable profiling only connected" FORCE)
+    set(TRACY_NO_EXIT              OFF CACHE BOOL "Don't exit Tracy until connected" FORCE)
+    set(TRACY_DELAYED_INIT         ON  CACHE BOOL "Don't init Tracy on library load" FORCE)
+    set(TRACY_MANUAL_LIFETIME      ON  CACHE BOOL "Manually control Tracy lifetime" FORCE)
+    set(TRACY_NO_CRASH_HANDLER     ON  CACHE BOOL "Disable crash handling" FORCE)
+
+    add_subdirectory(3rdparty/tracy)
+endif ()
+
+set(SOURCE_FILES
+    MobileGL/Init.cpp
+    MobileGL/GlobalObjects.cpp
+    MobileGL/ConfigLoader.cpp
+
+    MobileGL/MG_Util/Debug/Log.cpp
+
+    MobileGL/MG_Util/Async/JobNode.cpp
+    MobileGL/MG_Util/Async/ShaderCompilePool.cpp
+
+    MobileGL/MG_Util/Math/VectorTypes.cpp
+    MobileGL/MG_Util/Metrics/TextureMetrics.cpp
+
+    MobileGL/MG_Util/Metrics/BufferMetrics.cpp
+
+    MobileGL/MG_Util/Converters/GLToStr/GLEnumConverter.cpp
+    MobileGL/MG_Util/Converters/EGLToStr/EGLEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToStr/DataTypeConverter.cpp
+    MobileGL/MG_Util/Converters/MGToStr/RenderStateEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToStr/GLExtensionConverter.cpp
+    MobileGL/MG_Util/Converters/MGToStr/BufferEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToStr/FramebufferEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToStr/TextureEnumConverter.cpp
+    MobileGL/MG_Util/Converters/GLToGlslang/ProgramEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToGL/ErrorCodeConverter.cpp
+    MobileGL/MG_Util/Converters/MGToGL/BufferEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToGL/FramebufferEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToGL/TextureEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToGL/DataTypeConverter.cpp
+    MobileGL/MG_Util/Converters/MGToGL/RenderStateEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToGL/ProgramEnumConverter.cpp
+    MobileGL/MG_Util/Converters/GLToMG/BufferEnumConverter.cpp
+    MobileGL/MG_Util/Converters/GLToMG/FramebufferEnumConverter.cpp
+    MobileGL/MG_Util/Converters/GLToMG/TextureEnumConverter.cpp
+    MobileGL/MG_Util/Converters/GLToMG/DataTypeConverter.cpp
+    MobileGL/MG_Util/Converters/GLToMG/RenderStateEnumConverter.cpp
+    MobileGL/MG_Util/Converters/GLToMG/ProgramEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToMG/TextureEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToVk/RenderStateEnumConverter.cpp
+    MobileGL/MG_Util/Converters/MGToVk/TextureEnumConverter.cpp
+
+    MobileGL/MG_Util/Classifiers/TextureEnumClassifier.cpp
+
+    MobileGL/MG_Util/ShaderTranspiler/CompileEnv.cpp
+    MobileGL/MG_Util/ShaderTranspiler/ShaderCompiler.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpvcSession.cpp
+    MobileGL/MG_Util/ShaderTranspiler/ShaderSourceProcessor.cpp
+    MobileGL/MG_Util/ShaderTranspiler/glslang/TMglGlslIoResolver.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/FlattenInterfaceStructPass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/EliminateFloatEqualsZeroPass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/RenameSamplerFunctionParameterPass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/RenameBuiltinShadowingFunctionsPass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/DecomposeWorkgroupVec3Pass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/DecoratePositionInvariantPass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/LowerDrawParametersPass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/PackDoubleVertexInputsPass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/RebaseInstanceIndexPass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/NormalizeRectCoordinatesPass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/StripUboMemberRelaxedPrecisionPass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/StripNoPerspectivePass.cpp
+    MobileGL/MG_Util/ShaderTranspiler/SpirvPasses/EmulateNoPerspectivePass.cpp
+
+    MobileGL/MG_Util/BackendLoaders/OpenGL/Loader.cpp
+    MobileGL/MG_Util/BackendLoaders/Vulkan/Loader.cpp
+
+    MobileGL/MG_Util/SelfTest/DriverPost.cpp
+
+    MobileGL/MG_Util/Texture/PixelStoreProcessor.cpp
+    MobileGL/MG_Util/Texture/TextureFormatProcessor.cpp
+
+    MobileGL/MG_Impl/GLXImpl/Exporting/Definitions.cpp
+    MobileGL/MG_Impl/GLXImpl/GLXImpl.cpp
+    MobileGL/MG_Impl/GLXImpl/LookUp/LookUp.cpp
+
+    MobileGL/MG_Impl/EGLImpl/Exporting/Definitions.cpp
+    MobileGL/MG_Impl/EGLImpl/EGLImpl.cpp
+    
+    # @INSERTION_POINT:SOURCE_FILE_GLIMPL@ #
+    MobileGL/MG_Impl/GLImpl/Sampler/Validators.cpp
+    MobileGL/MG_Impl/GLImpl/Sampler/GL_Sampler.cpp
+    MobileGL/MG_Impl/GLImpl/Drawing/GL_Drawing.cpp
+    MobileGL/MG_Impl/GLImpl/RenderState/GL_RenderState.cpp
+    MobileGL/MG_Impl/GLImpl/Framebuffer/Validators.cpp
+    MobileGL/MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.cpp
+    MobileGL/MG_Impl/GLImpl/Program/GL_Program.cpp
+    MobileGL/MG_Impl/GLImpl/Program/ProgramInterface.cpp
+    MobileGL/MG_Impl/GLImpl/Program/GL_ProgramPipeline.cpp
+    MobileGL/MG_Impl/GLImpl/Texture/GL_Texture.cpp
+    MobileGL/MG_Impl/GLImpl/Texture/Validators.cpp
+    MobileGL/MG_Impl/GLImpl/Texture/ProxyTexture.cpp
+    MobileGL/MG_Impl/GLImpl/VertexArray/GL_VertexArray.cpp
+    MobileGL/MG_Impl/GLImpl/VertexArray/Validators.cpp
+    MobileGL/MG_Impl/GLImpl/Buffer/GL_Buffer.cpp
+    MobileGL/MG_Impl/GLImpl/Buffer/Validators.cpp
+    MobileGL/MG_Impl/GLImpl/Exporting/Definitions.cpp
+    MobileGL/MG_Impl/GLImpl/Getter/GL_Getter.cpp
+    MobileGL/MG_Impl/GLImpl/Sync/GL_Sync.cpp
+    MobileGL/MG_Impl/GLImpl/Query/GL_Query.cpp
+
+    MobileGL/MG_Impl/Init.cpp
+    MobileGL/MG_Impl/GetProcAddress.cpp
+
+    MobileGL/MG_Backend/Init.cpp
+    MobileGL/MG_Backend/BackendObject.cpp
+
+    MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
+    MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.cpp
+    MobileGL/MG_Backend/DirectGLES/Utils.cpp
+    MobileGL/MG_Backend/DirectGLES/Managers.cpp
+    MobileGL/MG_Backend/DirectGLES/MultiDraw.cpp
+
+    MobileGL/MG_Backend/DirectVulkan/DirectVulkan.cpp
+    MobileGL/MG_Backend/DirectVulkan/BackendObject_DirectVulkan.cpp
+    MobileGL/MG_Backend/DirectVulkan/VmaImpl.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VulkanRenderer.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/SwapchainObject.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/FrameContext.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/PipelineFactory.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/ProgramFactory.cpp
+        MobileGL/MG_Backend/DirectVulkan/Renderer/UniformManager.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/BufferArena.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VkBufferManager.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VertexInputStateBuilder.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VertexInputStateFactory.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VkBufferObject.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VkTextureManager.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VkTimerQueryManager.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VkSamplerManager.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VkClearManager.cpp
+    MobileGL/MG_Backend/DirectVulkan/Renderer/VkRenderPassManager.cpp
+
+    MobileGL/MG_State/GLState/Core.cpp
+    MobileGL/MG_State/EGLState/Core.cpp
+    MobileGL/MG_State/GLState/ErrorState/Error.cpp
+    MobileGL/MG_State/GLState/BufferState/BufferState.cpp
+    MobileGL/MG_State/GLState/BufferState/BufferObject.cpp
+    MobileGL/MG_State/GLState/VertexArrayState/VertexArrayState.cpp
+    MobileGL/MG_State/GLState/VertexArrayState/VertexArrayObject.cpp
+    MobileGL/MG_State/GLState/TextureState/MipmapStorage.cpp
+    MobileGL/MG_State/GLState/TextureState/TextureObject.cpp
+    MobileGL/MG_State/GLState/TextureState/TextureObject1D.cpp
+    MobileGL/MG_State/GLState/TextureState/TextureObject2D.cpp
+    MobileGL/MG_State/GLState/TextureState/TextureObject2DCube.cpp
+    MobileGL/MG_State/GLState/TextureState/TextureObject3D.cpp
+    MobileGL/MG_State/GLState/TextureState/TextureObjectBuffer.cpp
+    MobileGL/MG_State/GLState/TextureState/TextureUnit.cpp
+    MobileGL/MG_State/GLState/TextureState/TextureState.cpp
+    MobileGL/MG_State/GLState/ProgramState/ProgramObject.cpp
+    MobileGL/MG_State/GLState/ProgramState/ProgramLinkTask.cpp
+    MobileGL/MG_State/GLState/ProgramState/ShaderCompileTask.cpp
+    MobileGL/MG_State/GLState/ProgramState/ShaderObject.cpp
+    MobileGL/MG_State/GLState/ProgramState/ShaderPreprocessCache.cpp
+    MobileGL/MG_State/GLState/ProgramState/ShaderCompileAdoptionMap.cpp
+    MobileGL/MG_State/GLState/ProgramState/ProgramState.cpp
+    MobileGL/MG_State/GLState/RenderState/RenderState.cpp
+    MobileGL/MG_State/GLState/FramebufferState/FramebufferObject.cpp
+    MobileGL/MG_State/GLState/FramebufferState/FramebufferState.cpp
+    MobileGL/MG_State/GLState/SamplerState/SamplerObject.cpp
+    MobileGL/MG_State/GLState/SamplerState/SamplerState.cpp
+    MobileGL/MG_State/GLState/RenderbufferState/RenderbufferObject.cpp
+    MobileGL/MG_State/GLState/RenderbufferState/RenderbufferState.cpp
+)
+
+if (APPLE AND NOT MOBILEGL_IOS)
+    list(APPEND SOURCE_FILES
+        MobileGL/MG_Impl/CGLImpl/CGLImpl.cpp
+        MobileGL/MG_Impl/CGLImpl/Exporting/Definitions.cpp
+        MobileGL/MG_Impl/DyldInterpose/DyldInterpose.cpp
+        MobileGL/MG_Impl/NSOpenGLImpl/NSOpenGLImpl.cpp
+    )
+endif()
+
+if (ANDROID)
+    list(APPEND SOURCE_FILES
+        MobileGL/MG_Util/SelfTest/DriverPostJni.cpp
+        MobileGL/MG_Util/SelfTest/DriverBenchJni.cpp
+    )
+endif()
+
+if (WIN32)
+    list(APPEND SOURCE_FILES
+        MobileGL/MG_Impl/WGLImpl/WGLImpl.cpp
+        MobileGL/MG_Impl/WGLImpl/Exporting/Definitions.cpp
+    )
+endif()
+
+# The shader-compile pool runs standalone Asio on real threads. This host's glibc (>= 2.34)
+# merged pthread into libc, so it links without asking, but the NDK and musl are not
+# guaranteed to be as forgiving - ask for it explicitly rather than rely on the accident.
+find_package(Threads REQUIRED)
+
+set(MOBILEGL_LINK_LIBRARIES
+        glslang::glslang
+        spirv-cross-c
+        SPIRV-Tools-opt
+        SPIRV-Tools
+        xxHash::xxhash
+        GPUOpen::VulkanMemoryAllocator
+        Vulkan::UtilityHeaders
+        spirv-reflect-static
+        Threads::Threads
+)
+
+set(MOBILEGL_COMPILE_DEF
+        -DVMA_STATIC_VULKAN_FUNCTIONS=0
+        -DVMA_DYNAMIC_VULKAN_FUNCTIONS=1
+        -DVMA_VULKAN_VERSION=1001000
+        # Header-only Asio, no Boost, no deprecated interfaces. Set on the definition list
+        # rather than per-target so the shared library and the _s static target agree.
+        -DASIO_STANDALONE
+        -DASIO_NO_DEPRECATED
+)
+
+message(STATUS "MOBILEGL_COMPILE_DEF=${MOBILEGL_COMPILE_DEF}")
+
+set(MOBILEGL_INCLUDE_DIR
+        ${CMAKE_SOURCE_DIR}/include
+        ${CMAKE_SOURCE_DIR}/MobileGL
+        ${spirv-tools_SOURCE_DIR}
+        ${spirv-tools_SOURCE_DIR}/include
+        ${spirv-tools_BINARY_DIR}
+        ${SPIRV-Headers_SOURCE_DIR}/include
+        # Header-only submodule: no add_subdirectory, no link target. Only
+        # MG_Util/Async/ShaderCompilePool.cpp includes it, and it stays behind that file's
+        # pimpl so no consumer target needs this path.
+        ${CMAKE_SOURCE_DIR}/3rdparty/asio/asio/include
+        # The second shader-compile execution engine (MOBILEGL_ASYNC_POOL=libfork), on the
+        # same terms as Asio above: header-only, no add_subdirectory (its CMakeLists only
+        # declares an INTERFACE target plus install/test scaffolding we do not want), no link
+        # target, and reachable from exactly one translation unit. libfork's own
+        # target_compile_features asks for cxx_std_23, which this project already sets
+        # globally, so its C++20 coroutines need no per-source standard override.
+        ${CMAKE_SOURCE_DIR}/3rdparty/libfork/include
+)
 
 add_library(${CMAKE_PROJECT_NAME} SHARED
-        MG/Init.cpp
+    ${SOURCE_FILES}
-
-        # MG_GL/Implementations/GLX
-        MG/MG_GL/Implementations/GLX/GLXFuncsDefinitions/GLXFuncsDefinitions.cpp
-
-        # MG_GL/Implementations/GL
-        MG/MG_GL/Implementations/GL/GLFuncsDefinitions/GLFuncsDefinitions.cpp
-        
-        MG/MG_GL/Implementations/GL/Getter/GL_Getter.cpp
-        MG/MG_GL/Implementations/GL/Getter/BackendInfo.cpp
-
-        MG/MG_GL/Implementations/GL/Framebuffer/GL_Framebuffer.cpp
-
-        MG/MG_GL/Implementations/GL/Common/GL_Common.cpp
-
-        MG/MG_GL/Implementations/GL/Buffer/GL_Buffer.cpp
-
-        MG/MG_GL/Implementations/GL/Drawing/GL_Drawing.cpp
-
-        MG/MG_GL/Implementations/GL/Program/GL_Program.cpp
-
-        MG/MG_GL/Implementations/GL/Texture/GL_Texture.cpp
-
-        MG/MG_GL/Implementations/GL/VertexArray/GL_VertexArray.cpp
-
-        # MG_GL/Implementations/GLX
-        MG/MG_GL/Implementations/GLX/LookUp/LookUp.cpp
-        
-        # MG_GL/Implementations/EGL
-        MG/MG_GL/Implementations/EGL/VK/EGL_EMU.cpp
-
-        MG/MG_GL/Implementations/EGL/GLES/EGL_WRAP.cpp
-        
-        # MG_GL/State
-        MG/MG_GL/State/Core/GLState.cpp
-        
-        MG/MG_GL/State/Common/CommonState.cpp
-
-        MG/MG_GL/State/Texture/TextureState.cpp
-        
-        MG/MG_GL/State/VertexArray/VertexArrayState.cpp
-        
-        MG/MG_GL/State/Buffer/BufferState.cpp
-
-        MG/MG_GL/State/Program/ShaderObject.cpp
-        MG/MG_GL/State/Program/ProgramState.cpp
-        
-        MG/MG_GL/State/Framebuffer/FramebufferState.cpp
-
-        # MG_GL/BackendLoader
-        MG/MG_GL/BackendLoader/GLES/Loader.cpp
-        
-        # MG_UTIL/Debug
-        MG/MG_UTIL/Debug/Debug.cpp
-        
-        # MG_UTIL/Program
-        MG/MG_UTIL/Program/DebugTool.cpp
-        MG/MG_UTIL/Program/GLSLTool.cpp
-        
-        # MG_RHI/GLES
-        MG/MG_RHI/GLES/Test/TestDrawing.cpp
 )
 
-target_include_directories(${CMAKE_PROJECT_NAME} PRIVATE ./includes)
+if (WIN32)
+    # The wgl* entry points are exported via .def (see the comment in wgl.def);
+    # only the shared library links it.
+    target_sources(${CMAKE_PROJECT_NAME} PRIVATE
+        MobileGL/MG_Impl/WGLImpl/Exporting/wgl.def
+    )
+endif()
+
+if (CMAKE_BUILD_TYPE STREQUAL "Debug")
+    set_target_properties(${CMAKE_PROJECT_NAME} PROPERTIES
+        C_VISIBILITY_PRESET default
+        CXX_VISIBILITY_PRESET default
+        VISIBILITY_INLINES_HIDDEN OFF
+    )
+else()
+    set_target_properties(${CMAKE_PROJECT_NAME} PROPERTIES
+        C_VISIBILITY_PRESET hidden
+        CXX_VISIBILITY_PRESET hidden
+        VISIBILITY_INLINES_HIDDEN ON
+    )
+endif()
+
+target_include_directories(${CMAKE_PROJECT_NAME} PUBLIC
+    ${MOBILEGL_INCLUDE_DIR}
+)
 
 target_link_libraries(${CMAKE_PROJECT_NAME}
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libglslang.a
+    PUBLIC
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libspirv-cross-c-shared.so
+    ${MOBILEGL_LINK_LIBRARIES}
-        #${CMAKE_SOURCE_DIR}/library/arm64-v8a/libshaderconv.so
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libGenericCodeGen.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libglslang-default-resource-limits.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libMachineIndependent.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libOSDependent.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libSPIRV-Tools-diff.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libSPIRV-Tools-link.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libSPIRV-Tools-lint.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libSPIRV-Tools-opt.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libSPIRV-Tools-reduce.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libSPIRV-Tools.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libSPIRV.a
-        ${CMAKE_SOURCE_DIR}/library/arm64-v8a/libSPVRemapper.a
-        android
-        log
-        EGL
-        vulkan
 )
 
-target_include_directories(MobileGL PUBLIC
+target_compile_definitions(${CMAKE_PROJECT_NAME}
-        ${CMAKE_SOURCE_DIR}/include
+        PUBLIC
+        ${MOBILEGL_COMPILE_DEF}
+        MOBILEGL_LOG_ACTIVE_LEVEL=${MOBILEGL_LOG_ACTIVE_LEVEL}
+        $<$<BOOL:${MOBILEGL_TRACE_ANGLE_VARIANTS}>:MOBILEGL_TRACE_ANGLE_VARIANTS=1>
+)
+
+if(UNIX AND NOT APPLE AND NOT ANDROID)
+    foreach(MOBILEGL_LOADER_ALIAS
+            libEGL.so libEGL.so.1)
+        add_custom_command(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD
+            COMMAND ${CMAKE_COMMAND} -E create_symlink
+                    "$<TARGET_FILE_NAME:${CMAKE_PROJECT_NAME}>"
+                    "$<TARGET_FILE_DIR:${CMAKE_PROJECT_NAME}>/${MOBILEGL_LOADER_ALIAS}"
+            COMMENT "Creating ${MOBILEGL_LOADER_ALIAS} alias for Linux GL/EGL loaders"
         )
+    endforeach()
+endif()
 
+if(WIN32)
+    # Drop-in for the classic GL loader path: a copy named opengl32.dll placed
+    # next to a host executable is what LoadLibrary("opengl32.dll") and gdi32's
+    # pixel-format forwarding will resolve.
+    add_custom_command(TARGET ${CMAKE_PROJECT_NAME} POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy_if_different
+                "$<TARGET_FILE:${CMAKE_PROJECT_NAME}>"
+                "$<TARGET_FILE_DIR:${CMAKE_PROJECT_NAME}>/opengl32.dll"
+        COMMENT "Creating opengl32.dll drop-in copy"
+    )
+endif()
 
-if (PROFILING)
+if(NOT ANDROID)
-        find_package(Threads)
+    add_library(${CMAKE_PROJECT_NAME}_s STATIC 
-        include_directories(${CMAKE_SOURCE_DIR}/3rdparty/perfetto/sdk)
+        ${SOURCE_FILES}
-        add_library(perfetto STATIC ${CMAKE_SOURCE_DIR}/3rdparty/perfetto/sdk/perfetto.cc)
+    )
-        target_link_libraries(MobileGL perfetto ${CMAKE_THREAD_LIBS_INIT})
+
-        target_compile_definitions(MobileGL PUBLIC PROFILING=1)
+    if (CMAKE_BUILD_TYPE STREQUAL "Debug")
+        set_target_properties(${CMAKE_PROJECT_NAME}_s PROPERTIES
+            C_VISIBILITY_PRESET default
+            CXX_VISIBILITY_PRESET default
+            VISIBILITY_INLINES_HIDDEN OFF
+        )
+    else()
+        set_target_properties(${CMAKE_PROJECT_NAME}_s PROPERTIES
+            C_VISIBILITY_PRESET hidden
+            CXX_VISIBILITY_PRESET hidden
+            VISIBILITY_INLINES_HIDDEN ON
+        )
+    endif()
+
+    target_include_directories(${CMAKE_PROJECT_NAME}_s PUBLIC
+        ${MOBILEGL_INCLUDE_DIR}
+    )
+
+    target_link_libraries(${CMAKE_PROJECT_NAME}_s
+        PUBLIC
+        ${MOBILEGL_LINK_LIBRARIES}
+    )
+
+    target_compile_definitions(${CMAKE_PROJECT_NAME}_s
+            PUBLIC
+            ${MOBILEGL_COMPILE_DEF}
+            MOBILEGL_LOG_ACTIVE_LEVEL=${MOBILEGL_LOG_ACTIVE_LEVEL}
+    )
+endif()
+
+if (TRACY_ENABLE)
+    target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC Tracy::TracyClient)
+    target_link_libraries(${CMAKE_PROJECT_NAME}_s PUBLIC Tracy::TracyClient)
+    target_compile_definitions(${CMAKE_PROJECT_NAME} PUBLIC -DTRACY_ENABLE)
+    target_compile_definitions(${CMAKE_PROJECT_NAME}_s PUBLIC -DTRACY_ENABLE)
+endif ()
+
+if (ANDROID)
+    target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC
+        android
+        log
+        vulkan
+    )
+endif()
+
+if (APPLE AND NOT MOBILEGL_IOS)
+    # MobileGL statically embeds glslang, SPIRV-Tools, and SPIRV-Cross. When
+    # this dylib is injected with DYLD_INSERT_LIBRARIES, exporting those C++
+    # symbols interposes incompatible copies embedded by host libraries such
+    # as shaderc. Keep only the public GL/EGL/CGL loader surface globally
+    # visible; GetProcAddress can still return pointers to hidden internals.
+    set(MOBILEGL_MACOS_EXPORTED_SYMBOLS
+        "${CMAKE_CURRENT_SOURCE_DIR}/MobileGL/MG_Impl/DyldInterpose/ExportedSymbols.txt")
+    target_link_options(${CMAKE_PROJECT_NAME} PRIVATE
+        "LINKER:-exported_symbols_list,${MOBILEGL_MACOS_EXPORTED_SYMBOLS}")
+    set_property(TARGET ${CMAKE_PROJECT_NAME} APPEND PROPERTY
+        LINK_DEPENDS "${MOBILEGL_MACOS_EXPORTED_SYMBOLS}")
+
+    target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC
+        "-framework Cocoa"
+        "-framework CoreVideo"
+        "-framework QuartzCore"
+        "-framework Foundation"
+        "-framework OpenGL"
+        objc)
+    if(TARGET ${CMAKE_PROJECT_NAME}_s)
+        target_link_libraries(${CMAKE_PROJECT_NAME}_s PUBLIC
+            "-framework Cocoa"
+            "-framework CoreVideo"
+            "-framework QuartzCore"
+            "-framework Foundation"
+            "-framework OpenGL"
+            objc)
+    endif()
+endif()
+
+if (APPLE AND MOBILEGL_IOS)
+    target_compile_definitions(${CMAKE_PROJECT_NAME} PUBLIC MOBILEGL_IOS=1 _LIBCPP_DISABLE_AVAILABILITY)
+    target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC
+        "-framework CoreGraphics"
+        "-framework Foundation"
+        "-framework QuartzCore"
+        objc)
+    if (MOBILEGL_VULKAN_LIBRARY)
+        target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC "${MOBILEGL_VULKAN_LIBRARY}")
+    endif()
+
+    if(TARGET ${CMAKE_PROJECT_NAME}_s)
+        target_compile_definitions(${CMAKE_PROJECT_NAME}_s PUBLIC MOBILEGL_IOS=1 _LIBCPP_DISABLE_AVAILABILITY)
+        target_link_libraries(${CMAKE_PROJECT_NAME}_s PUBLIC
+            "-framework CoreGraphics"
+            "-framework Foundation"
+            "-framework QuartzCore"
+            objc)
+        if (MOBILEGL_VULKAN_LIBRARY)
+            target_link_libraries(${CMAKE_PROJECT_NAME}_s PUBLIC "${MOBILEGL_VULKAN_LIBRARY}")
+        endif()
+    endif()
+endif()
+
+if (NOT ANDROID AND NOT MOBILEGL_IOS)
+    find_package(Vulkan)
+    if (Vulkan_FOUND)
+        target_link_libraries(${CMAKE_PROJECT_NAME} PUBLIC Vulkan::Vulkan Vulkan::Headers)
+        target_link_libraries(${CMAKE_PROJECT_NAME}_s PUBLIC Vulkan::Vulkan Vulkan::Headers)
+        target_include_directories(${CMAKE_PROJECT_NAME} PUBLIC ${Vulkan_INCLUDE_DIR})
+        target_include_directories(${CMAKE_PROJECT_NAME}_s PUBLIC ${Vulkan_INCLUDE_DIR})
+    endif ()
+endif ()
+
+if (NOT ANDROID)
+    # Enable testing in the top-level scope so a CTestTestfile.cmake is emitted
+    # at the build-tree root. This lets `ctest` be invoked from the top-level
+    # build directory (IDE "run all tests", CI) and discover every test in the
+    # subdirectories below, instead of having to descend into each
+    # MG_Test/MG_Benchmark subdirectory. Tests are tagged with CTest labels
+    # (unit / benchmark / integration), so e.g. `ctest -L unit` selects just
+    # the unit suite.
+    enable_testing()
+
+    if (MOBILEGL_BUILD_TEST)
+        add_subdirectory(MobileGL/MG_Test)
+    endif()
+
+    # After MG_Test so googletest is already available when the unit tests are
+    # built; the module fetches its own copy when they are not.
+    if (MOBILEGL_BUILD_INTEGRATION_TEST)
+        add_subdirectory(MobileGL/MG_IntegrationTest)
+    endif()
+
+    if (MOBILEGL_BUILD_BENCHMARK)
+        add_subdirectory(MobileGL/MG_Benchmark)
+    endif()
+
+    if (MOBILEGL_BUILD_TRACE_REPLAY)
+        add_subdirectory(tools/trace_replay)
+    endif()
 endif()

COPYING

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
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+
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+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
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+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
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+  "This License" refers to version 3 of the GNU General Public License.
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+  The "source code" for a work means the preferred form of the work
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+can regenerate automatically from other parts of the Corresponding
+Source.
+
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+same work.
+
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+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
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+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
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+    License will therefore apply, along with any applicable section 7
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+used to limit the access or legal rights of the compilation's users
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+in an aggregate does not cause this License to apply to the other
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+  You may convey a covered work in object code form under the terms
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+    d) Convey the object code by offering access from a designated
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+modification has been made.
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+network may be denied when the modification itself materially and
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+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
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+
+    d) Limiting the use for publicity purposes of names of licensors or
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+
+    e) Declining to grant rights under trademark law for use of some
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+    f) Requiring indemnification of licensors and authors of that
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COPYING.LESSER

@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
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LICENSE

@@ -1,458 +1,4 @@
-Copyright (c) 2025 MobileGL-Dev
+Copyright (c) 2025-2026 MobileGL-Dev
 
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MG/Constants.h

@@ -1,192 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_CONSTANTS_H
-#define MOBILEGL_CONSTANTS_H
-
-#include <array>
-#include <unordered_map>
-#include <unordered_set>
-#include <GL/gl.h>
-#include <ankerl/unordered_dense.h>
-
-#ifdef __ANDROID__
-#define __ANDROID_API__ 26
-#endif
-
-#ifdef _WIN32
-#define MG_EXPORT extern "C" __declspec(dllexport)
-#else
-#define MG_EXPORT extern "C" __attribute__((visibility("default")))
-#endif
-
-namespace ankerl {
-    template <typename K, typename V>
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
-    
-    template <typename T>
-    using unordered_set = ankerl::unordered_dense::set<T>;
-}
-
-namespace MG_Constants {
-    namespace Common {
-        inline constexpr int LOG_LEVEL_DEBUG     = 0x0010;
-        inline constexpr int LOG_LEVEL_WARN      = 0x0011;
-        inline constexpr int LOG_LEVEL_ERROR     = 0x0012;
-        inline constexpr int LOG_LEVEL_INFO      = 0x0013;
-        inline constexpr int LOG_LEVEL_FATAL     = 0x0014;
-
-
-        inline constexpr int LOG_TARGET_NONE     = 0x00;
-        inline constexpr int LOG_TARGET_CONSOLE  = 0x01;
-        inline constexpr int LOG_TARGET_FILE     = 0x02;
-        inline constexpr int LOG_TARGET_ANDROID  = 0x04;  // Android logcat
-        inline constexpr int LOG_TARGET_ALL      = LOG_TARGET_CONSOLE | LOG_TARGET_FILE | LOG_TARGET_ANDROID;
-    }
-    
-    namespace Blend {
-        static const ankerl::unordered_set<GLenum> VALID_FACTORS = {
-                GL_ZERO, GL_ONE, GL_SRC_COLOR, GL_ONE_MINUS_SRC_COLOR,
-                GL_DST_COLOR, GL_ONE_MINUS_DST_COLOR, GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA,
-                GL_DST_ALPHA, GL_ONE_MINUS_DST_ALPHA, GL_CONSTANT_COLOR, GL_ONE_MINUS_CONSTANT_COLOR,
-                GL_CONSTANT_ALPHA, GL_ONE_MINUS_CONSTANT_ALPHA, GL_SRC_ALPHA_SATURATE
-        }; // OpenGL 3
-    }
-    
-    namespace Depth {
-        static const ankerl::unordered_set<GLenum> VALID_FUNCS = {
-                GL_NEVER, GL_LESS, GL_EQUAL, GL_LEQUAL, GL_GREATER, GL_NOTEQUAL, GL_GEQUAL, GL_ALWAYS
-        }; // OpenGL 3
-    }
-    
-    namespace CommonState {
-        static const ankerl::unordered_set<GLenum> VALID_CAPS = {
-                GL_BLEND, GL_DEPTH_TEST, GL_STENCIL_TEST, GL_SCISSOR_TEST, GL_CULL_FACE,
-                GL_POLYGON_OFFSET_FILL, GL_SAMPLE_ALPHA_TO_COVERAGE, GL_SAMPLE_COVERAGE
-        }; // OpenGL 3
-    }
-    
-    namespace Framebuffer {
-        static const ankerl::unordered_set<GLenum> VALID_ATTACHMENTS = {
-                GL_COLOR_ATTACHMENT0, GL_DEPTH_ATTACHMENT,
-                GL_STENCIL_ATTACHMENT, GL_DEPTH_STENCIL_ATTACHMENT
-        }; // OpenGL 3
-        
-        static const ankerl::unordered_set<GLenum> VALID_TARGETS = {
-                GL_FRAMEBUFFER, GL_DRAW_FRAMEBUFFER, GL_READ_FRAMEBUFFER
-        }; // OpenGL 3
-        
-        static const ankerl::unordered_set<GLenum> VALID_ACCESS = {
-                GL_READ_ONLY, GL_WRITE_ONLY, GL_READ_WRITE
-        }; // OpenGL 3
-    }
-    
-    namespace Buffer {
-        static const ankerl::unordered_set<GLenum> VALID_PARAM_NAMES = {
-                GL_BUFFER_ACCESS, GL_BUFFER_MAPPED, GL_BUFFER_SIZE, GL_BUFFER_USAGE
-        }; // OpenGL 3
-        
-        static const ankerl::unordered_set<GLenum> VALID_TARGETS = { 
-                GL_ARRAY_BUFFER, GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, GL_ELEMENT_ARRAY_BUFFER,
-                GL_PIXEL_PACK_BUFFER, GL_PIXEL_UNPACK_BUFFER, GL_TEXTURE_BUFFER,
-                GL_TRANSFORM_FEEDBACK_BUFFER,  GL_UNIFORM_BUFFER
-        }; // OpenGL 3
-        
-        static const ankerl::unordered_set<GLenum> VALID_ACCESS = {
-                GL_READ_ONLY, GL_WRITE_ONLY, GL_READ_WRITE
-        }; // OpenGL 3
-    }
-
-    namespace PixelStore {
-        static const ankerl::unordered_map<GLenum, GLint> DEFAULT_VALUES_MAP = {
-                {GL_PACK_SWAP_BYTES,   GL_FALSE},
-                {GL_PACK_LSB_FIRST,    GL_FALSE},
-                {GL_PACK_ROW_LENGTH,   0},
-                {GL_PACK_IMAGE_HEIGHT, 0},
-                {GL_PACK_SKIP_ROWS,    0},
-                {GL_PACK_SKIP_PIXELS,  0},
-                {GL_PACK_SKIP_IMAGES,  0},
-                {GL_PACK_ALIGNMENT,    4},
-                {GL_UNPACK_SWAP_BYTES, GL_FALSE},
-                {GL_UNPACK_LSB_FIRST,  GL_FALSE},
-                {GL_UNPACK_ROW_LENGTH, 0},
-                {GL_UNPACK_IMAGE_HEIGHT, 0},
-                {GL_UNPACK_SKIP_ROWS,  0},
-                {GL_UNPACK_SKIP_PIXELS,0},
-                {GL_UNPACK_SKIP_IMAGES,0},
-                {GL_UNPACK_ALIGNMENT,  4}
-        }; // OpenGL 3
-        
-        static const ankerl::unordered_set<GLenum> VALID_PARAM_NAMES = {
-                GL_PACK_SWAP_BYTES, GL_PACK_LSB_FIRST, GL_PACK_ROW_LENGTH, GL_PACK_IMAGE_HEIGHT,
-                GL_PACK_SKIP_ROWS, GL_PACK_SKIP_PIXELS, GL_PACK_SKIP_IMAGES, GL_PACK_ALIGNMENT,
-                GL_UNPACK_SWAP_BYTES, GL_UNPACK_LSB_FIRST, GL_UNPACK_ROW_LENGTH,
-                GL_UNPACK_IMAGE_HEIGHT,
-                GL_UNPACK_SKIP_ROWS, GL_UNPACK_SKIP_PIXELS, GL_UNPACK_SKIP_IMAGES,
-                GL_UNPACK_ALIGNMENT
-        }; // OpenGL 3
-    }
-    
-    namespace Texture {
-        inline const GLuint MAX_TEXTURE_UNITS = 80;
-        const GLsizei MAX_TEXTURE_SIZE = 32768;
-        const GLsizei MAX_ARRAY_LAYERS = 256;
-        inline const ankerl::unordered_set<GLenum> VALID_TARGETS = {
-                GL_TEXTURE_2D, GL_PROXY_TEXTURE_2D, GL_TEXTURE_1D_ARRAY, GL_PROXY_TEXTURE_1D_ARRAY,
-                GL_TEXTURE_RECTANGLE, GL_PROXY_TEXTURE_RECTANGLE, GL_TEXTURE_CUBE_MAP_POSITIVE_X,
-                GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, 
-                GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, GL_PROXY_TEXTURE_CUBE_MAP
-        }; // OpenGL 3
-
-        inline const ankerl::unordered_set<GLenum> VALID_FORMATS = {
-                GL_RED, GL_RG, GL_RGB, GL_BGR, GL_RGBA, GL_BGRA, GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL
-        }; // OpenGL 3
-
-        inline const ankerl::unordered_set<GLenum> VALID_INTERNAL_FORMATS = {
-                GL_RED, GL_RG, GL_RGB, GL_BGR, GL_RGBA, GL_BGRA, GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL,
-                GL_RGBA32F, GL_RGBA32I, GL_RGBA32UI, GL_RGBA16, GL_RGBA16F, GL_RGBA16I, 
-                GL_RGBA16UI, GL_RGBA8, GL_RGBA8UI, GL_SRGB8_ALPHA8, GL_RGB10_A2, GL_RGB10_A2UI, 
-                GL_R11F_G11F_B10F, GL_RG32F, GL_RG32I, GL_RG32UI, GL_RG16, GL_RG16F, GL_RGB16I,
-                GL_RGB16UI, GL_RG8, GL_RG8I, GL_RG8UI, GL_R32F, GL_R32I, GL_R32UI, GL_R16F, 
-                GL_R16I, GL_R16UI, GL_R8, GL_R8I, GL_R8UI, GL_RGBA16_SNORM, GL_RGBA8_SNORM, 
-                GL_RGB32F, GL_RGB32I, GL_RGB32UI, GL_RGB16_SNORM, GL_RGB16F, GL_RGB16I, GL_RGB16UI,
-                GL_RGB16, GL_RGB8_SNORM, GL_RGB8, GL_RGB8I, GL_RGB8UI, GL_SRGB8, GL_RGB9_E5, 
-                GL_RG16_SNORM, GL_RG8_SNORM, GL_COMPRESSED_RG_RGTC2, GL_COMPRESSED_SIGNED_RG_RGTC2,
-                GL_R16_SNORM, GL_R8_SNORM, GL_COMPRESSED_RED_RGTC1, GL_COMPRESSED_SIGNED_RED_RGTC1,
-                GL_DEPTH_COMPONENT32F, GL_DEPTH_COMPONENT32, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT16,
-                GL_DEPTH32F_STENCIL8, GL_DEPTH24_STENCIL8
-        }; // OpenGL 3
-
-        inline const ankerl::unordered_set<GLenum> VALID_TYPES = {
-                GL_UNSIGNED_BYTE, GL_BYTE, GL_UNSIGNED_SHORT, GL_SHORT, GL_UNSIGNED_INT, GL_INT, 
-                GL_FLOAT, GL_UNSIGNED_BYTE_3_3_2, GL_UNSIGNED_BYTE_2_3_3_REV, GL_UNSIGNED_SHORT_5_6_5, 
-                GL_UNSIGNED_SHORT_5_6_5_REV, GL_UNSIGNED_SHORT_4_4_4_4, GL_UNSIGNED_SHORT_4_4_4_4_REV,
-                GL_UNSIGNED_SHORT_5_5_5_1, GL_UNSIGNED_SHORT_1_5_5_5_REV, GL_UNSIGNED_INT_8_8_8_8,
-                GL_UNSIGNED_INT_8_8_8_8_REV, GL_UNSIGNED_INT_10_10_10_2, GL_UNSIGNED_INT_2_10_10_10_REV
-        }; // OpenGL 3
-
-        inline const ankerl::unordered_set<GLenum> VALID_TEXTURE_PARAM_NAMES = {
-                GL_TEXTURE_BASE_LEVEL, GL_TEXTURE_COMPARE_FUNC, GL_TEXTURE_COMPARE_MODE, GL_TEXTURE_MIN_FILTER, 
-                GL_TEXTURE_MAG_FILTER, GL_TEXTURE_MAX_LEVEL, GL_TEXTURE_SWIZZLE_R, GL_TEXTURE_SWIZZLE_G,
-                GL_TEXTURE_SWIZZLE_B, GL_TEXTURE_SWIZZLE_A, GL_TEXTURE_SWIZZLE_RGBA, GL_TEXTURE_WRAP_S,
-                GL_TEXTURE_WRAP_T, GL_TEXTURE_WRAP_R, GL_TEXTURE_LOD_BIAS, GL_TEXTURE_MIN_LOD, GL_TEXTURE_MAX_LOD, GL_TEXTURE_BORDER_COLOR
-        }; // OpenGL 3
-        
-        inline const ankerl::unordered_set<GLenum> VALID_QUERY_LEVEL_PROPERTY_PARAM_NAMES = {
-                GL_TEXTURE_WIDTH, GL_TEXTURE_HEIGHT, GL_TEXTURE_DEPTH, GL_TEXTURE_INTERNAL_FORMAT,
-                GL_TEXTURE_RED_SIZE, GL_TEXTURE_GREEN_SIZE, GL_TEXTURE_BLUE_SIZE, GL_TEXTURE_ALPHA_SIZE,
-                GL_TEXTURE_DEPTH_SIZE, GL_TEXTURE_COMPRESSED, GL_TEXTURE_COMPRESSED_IMAGE_SIZE
-        }; // OpenGL 3
-    }
-
-    namespace Backend {
-#define BACKEND_VULKAN 0x0015
-#define BACKEND_METAL  0x0016
-#define BACKEND_GLES   0x0017
-    }
-    
-    inline const char* RenderName = "MobileGL";
-}
-
-#endif //MOBILEGL_CONSTANTS_H

MG/Global.h

@@ -1,41 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_GLOBAL_H
-#define MOBILEGL_GLOBAL_H
-
-#include "Includes.h"
-
-namespace MG_Global {
-    namespace MG {
-        inline const int VersionMajor          = 1;
-        inline const int VersionMinor          = 0;
-        inline const int VersionRevision       = 0;
-        inline const int VersionPatch          = 0;
-        inline const std::string VersionSuffix = "-Dev";
-    }
-    
-    namespace Backend {
-// BACKEND_TYPE is defined in Includes.h
-    }
-    
-    namespace GL {
-        inline const int GLVersionMajor    = 3;
-        inline const int GLVersionMinor    = 2;
-        inline const int GLVersionRevision = 0;
-    }
-    
-    namespace Common {
-        inline constexpr int LogLevel    = MG_Constants::Common::LOG_LEVEL_INFO;
-        inline constexpr int LogTarget   = MG_Constants::Common::LOG_TARGET_ALL;
-        
-#ifdef __ANDROID__
-        inline const char* LOG_FILE_PATH = "/sdcard/MG/latest.log";
-#else
-        inline const char* LOG_FILE_PATH = nullptr;
-#endif
-    }
-}
-
-#endif //MOBILEGL_GLOBAL_H

MG/Includes.h

@@ -1,140 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "Constants.h"
-#define BACKEND_TYPE BACKEND_GLES
-#include "Global.h"
-#ifndef MOBILEGL_GLES_LOADER_H
-#include "MG_GL/BackendLoader/GLES/Loader.h"
-#endif
-#ifndef MOBILEGL_GL_FRAMEBUFFER_H
-#include "MG_GL/Implementations/GL/Framebuffer/GL_Framebuffer.h"
-#endif
-#ifndef MOBILEGL_GL_GETTER_H
-#include "MG_GL/Implementations/GL/Getter/GL_Getter.h"
-#endif
-#ifndef MOBILEGL_BACKENDINFO_H
-#include "MG_GL/Implementations/GL/Getter/BackendInfo.h"
-#endif
-#ifndef MOBILEGL_GL_BUFFER_H
-#include "MG_GL/Implementations/GL/Buffer/GL_Buffer.h"
-#endif
-#ifndef MOBILEGL_GL_DRAWING_H
-#include "MG_GL/Implementations/GL/Drawing/GL_Drawing.h"
-#endif
-#ifndef MOBILEGL_GL_PROGRAM_H
-#include "MG_GL/Implementations/GL/Program/GL_Program.h"
-#endif
-#ifndef MOBILEGL_GL_TEXTURE_H
-#include "MG_GL/Implementations/GL/Texture/GL_Texture.h"
-#endif
-#ifndef MOBILEGL_GL_VERTEXARRAY_H
-#include "MG_GL/Implementations/GL/VertexArray/GL_VertexArray.h"
-#endif
-#ifndef MOBILEGL_GLSTATE_H
-#include "MG_GL/State/Core/GLState.h"
-#endif
-#ifndef MOBILEGL_COMMONSTATE_H
-#include "MG_GL/State/Common/CommonState.h"
-#endif
-#ifndef MOBILEGL_TEXTURESTATE_H
-#include "MG_GL/State/Texture/TextureState.h"
-#endif
-#ifndef MOBILEGL_VERTEXARRAYSTATE_H
-#include "MG_GL/State/VertexArray/VertexArrayState.h"
-#endif
-#ifndef MOBILEGL_BUFFERSTATE_H
-#include "MG_GL/State/Buffer/BufferState.h"
-#endif
-#ifndef MOBILEGL_SHADEROBJECT_H
-#include "MG_GL/State/Program/ShaderObject.h"
-#endif
-#ifndef MOBILEGL_PROGRAMSTATE_H
-#include "MG_GL/State/Program/ProgramState.h"
-#endif
-#ifndef MOBILEGL_FRAMEBUFFERSTATE_H
-#include "MG_GL/State/Framebuffer/FramebufferState.h"
-#endif
-#ifndef MOBILEGL_LOOKUP_H
-#include "MG_GL/Implementations/GLX/LookUp/LookUp.h"
-#endif
-#ifndef MOBILEGL_DEBUG_H
-#include "MG_UTIL/Debug/Debug.h"
-#endif
-#ifndef MOBILEGL_GLSLTOOL_H
-#include "MG_UTIL/Program/GLSLTool.h"
-#endif
-#ifndef MOBILEGL_PROGRAM_DEBUGTOOL_H
-#include "MG_UTIL/Program/DebugTool.h"
-#endif
-#ifndef MOBILEGL_GL_COMMON_H
-#include "MG_GL/Implementations/GL/Common/GL_Common.h"
-#endif
-#ifndef MOBILEGL_EGL_VK_EMU_H
-#include "MG_GL/Implementations/EGL/VK/EGL_EMU.h"
-#endif
-#ifndef MOBILEGL_EGL_GLES_EGL_WRAP_H
-#include "MG_GL/Implementations/EGL/GLES/EGL_WRAP.h"
-#endif
-#ifndef MOBILEGL_TESTDRAWING_H
-#include "MG_RHI/GLES/Test/TestDrawing.h"
-#endif
-
-#include <cstring>
-#include <iostream>
-#include <cstdio>
-#include <ctime>
-#include <chrono>
-#include <thread>
-#include <string>
-#include <map>
-#include <vector>
-#include <stdexcept>
-#include <atomic>
-#include <regex>
-#include <strstream>
-#include <algorithm>
-#include <array>
-#include <random>
-#include <optional>
-#include <unordered_map>
-#include <queue>
-#include <format>
-#include <glslang/Public/ShaderLang.h>
-#include <glslang/Include/Types.h>
-#include <glslang/Public/ShaderLang.h>
-#include <spirv_cross/spirv_cross_c.h>
-#include <glslang/SPIRV/GlslangToSpv.h>
-#include <glm/gtc/matrix_transform.hpp>
-#include <glm/glm.hpp>
-#include <ankerl/unordered_dense.h>
-#include <GLES3/gl32.h>
-
-#include "MG_Include/UncertainBool.hpp"
-
-#ifdef _WIN32
-#include <Windows.h>
-#endif
-
-#ifndef _WIN32
-#include <dlfcn.h>
-#include <unistd.h>
-#include <vulkan/vulkan.h>
-#endif
-
-#ifdef __ANDROID__
-#include <android/log.h>
-#include <pthread.h>
-#include <vulkan/vulkan_android.h>
-#include <android/native_window.h>
-#elif _WIN32
-#include <windows.h>
-#include <processthreadsapi.h>
-#else
-#include <pthread.h>
-#endif
-
-#include <EGL/egl.h>
-#include <GL/gl.h>
-#include <GL/glext.h>

MG/Init.cpp

@@ -1,46 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "Includes.h"
-
-void MG_Initialize() {
-    MG_Util::Debug::LogInit();
-    MG_Util::Debug::LogI("MobileGL Initializing...");
-    MG_State::Init();
-    MG_GL::BackendLoader::Init();
-}
-
-void MG_Destroy() {
-    MG_Util::Debug::LogI("MobileGL Exiting...");
-    MG_State::Destroy();
-}
-
-#if defined(__linux__) || defined(__APPLE__)
-__attribute__((constructor)) static void AutoInit() {
-    MG_Initialize();
-}
-
-__attribute__((destructor)) static void AutoDestroy() {
-    MG_Destroy();
-}
-#endif
-
-#ifdef _WIN32
-BOOL WINAPI DllMain(HMODULE hModule,
-                      DWORD  ul_reason_for_call,
-                      LPVOID lpReserved)
-{
-    switch (ul_reason_for_call)
-    {
-    case DLL_PROCESS_ATTACH:
-        MG_Initialize();
-        break;
-
-    case DLL_PROCESS_DETACH:
-        MG_Destroy();
-        break;
-    }
-    return TRUE;
-}
-#endif

MG/MG_GL/Implementations/EGL/GLES/EGL_WRAP.cpp

@@ -1,179 +0,0 @@
-//
-// Created by BZLZHH on 2025/4/26.
-//
-
-#include "EGL_WRAP.h"
-
-#if BACKEND_TYPE == BACKEND_GLES
-
-MG_EXPORT EGLint eglGetError(void) {
-    LOAD_EGL(eglGetError)
-    return egl_eglGetError();
-}
-
-MG_EXPORT EGLDisplay eglGetDisplay(EGLNativeDisplayType display_id) {
-    LOAD_EGL(eglGetDisplay)
-    return egl_eglGetDisplay(display_id);
-}
-
-MG_EXPORT EGLBoolean eglInitialize(EGLDisplay dpy, EGLint *major, EGLint *minor) {
-    LOAD_EGL(eglInitialize)
-    return egl_eglInitialize(dpy, major, minor);
-}
-
-MG_EXPORT EGLBoolean eglTerminate(EGLDisplay dpy) {
-    LOAD_EGL(eglTerminate)
-    return egl_eglTerminate(dpy);
-}
-
-MG_EXPORT const char *eglQueryString(EGLDisplay dpy, EGLint name) {
-    LOAD_EGL(eglQueryString)
-    return egl_eglQueryString(dpy, name);
-}
-
-MG_EXPORT EGLBoolean eglGetConfigs(EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config) {
-    LOAD_EGL(eglGetConfigs)
-    return egl_eglGetConfigs(dpy, configs, config_size, num_config);
-}
-
-MG_EXPORT EGLBoolean eglChooseConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config) {
-    LOAD_EGL(eglChooseConfig)
-    return egl_eglChooseConfig(dpy, attrib_list, configs, config_size, num_config);
-}
-
-MG_EXPORT EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value) {
-    LOAD_EGL(eglGetConfigAttrib)
-    return egl_eglGetConfigAttrib(dpy, config, attribute, value);
-}
-
-MG_EXPORT EGLSurface eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType win, const EGLint *attrib_list) {
-    LOAD_EGL(eglCreateWindowSurface)
-    return egl_eglCreateWindowSurface(dpy, config, win, attrib_list);
-}
-
-MG_EXPORT EGLSurface eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list) {
-    LOAD_EGL(eglCreatePbufferSurface)
-    return egl_eglCreatePbufferSurface(dpy, config, attrib_list);
-}
-
-MG_EXPORT EGLSurface eglCreatePixmapSurface(EGLDisplay dpy, EGLConfig config, EGLNativePixmapType pixmap, const EGLint *attrib_list) {
-    LOAD_EGL(eglCreatePixmapSurface)
-    return egl_eglCreatePixmapSurface(dpy, config, pixmap, attrib_list);
-}
-
-MG_EXPORT EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface) {
-    LOAD_EGL(eglDestroySurface)
-    return egl_eglDestroySurface(dpy, surface);
-}
-
-MG_EXPORT EGLBoolean eglQuerySurface(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint *value) {
-    LOAD_EGL(eglQuerySurface)
-    return egl_eglQuerySurface(dpy, surface, attribute, value);
-}
-
-MG_EXPORT EGLBoolean eglBindAPI(EGLenum api) {
-    LOAD_EGL(eglBindAPI)
-    return egl_eglBindAPI(api);
-}
-
-MG_EXPORT EGLenum eglQueryAPI(void) {
-    LOAD_EGL(eglQueryAPI)
-    return egl_eglQueryAPI();
-}
-
-MG_EXPORT EGLBoolean eglWaitClient(void) {
-    LOAD_EGL(eglWaitClient)
-    return egl_eglWaitClient();
-}
-
-MG_EXPORT EGLBoolean eglReleaseThread(void) {
-    LOAD_EGL(eglReleaseThread)
-    return egl_eglReleaseThread();
-}
-
-MG_EXPORT EGLSurface eglCreatePbufferFromClientBuffer(EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, EGLConfig config, const EGLint *attrib_list) {
-    LOAD_EGL(eglCreatePbufferFromClientBuffer)
-    return egl_eglCreatePbufferFromClientBuffer(dpy, buftype, buffer, config, attrib_list);
-}
-
-MG_EXPORT EGLBoolean eglSurfaceAttrib(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value) {
-    LOAD_EGL(eglSurfaceAttrib)
-    return egl_eglSurfaceAttrib(dpy, surface, attribute, value);
-}
-
-MG_EXPORT EGLBoolean eglBindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer) {
-    LOAD_EGL(eglBindTexImage)
-    return egl_eglBindTexImage(dpy, surface, buffer);
-}
-
-MG_EXPORT EGLBoolean eglReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer) {
-    LOAD_EGL(eglReleaseTexImage)
-    return egl_eglReleaseTexImage(dpy, surface, buffer);
-}
-
-MG_EXPORT EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) {
-    LOAD_EGL(eglSwapInterval)
-    return egl_eglSwapInterval(dpy, interval);
-}
-
-MG_EXPORT EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_context, const EGLint *attrib_list) {
-    LOAD_EGL(eglCreateContext)
-    return egl_eglCreateContext(dpy, config, share_context, attrib_list);
-}
-
-MG_EXPORT EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) {
-    LOAD_EGL(eglDestroyContext)
-    return egl_eglDestroyContext(dpy, ctx);
-}
-
-MG_EXPORT EGLBoolean eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) {
-    LOAD_EGL(eglMakeCurrent)
-    return egl_eglMakeCurrent(dpy, draw, read, ctx);
-}
-
-MG_EXPORT EGLContext eglGetCurrentContext(void) {
-    LOAD_EGL(eglGetCurrentContext)
-    return egl_eglGetCurrentContext();
-}
-
-MG_EXPORT EGLSurface eglGetCurrentSurface(EGLint readdraw) {
-    LOAD_EGL(eglGetCurrentSurface)
-    return egl_eglGetCurrentSurface(readdraw);
-}
-
-MG_EXPORT EGLDisplay eglGetCurrentDisplay(void) {
-    LOAD_EGL(eglGetCurrentDisplay)
-    return egl_eglGetCurrentDisplay();
-}
-
-MG_EXPORT EGLBoolean eglQueryContext(EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value) {
-    LOAD_EGL(eglQueryContext)
-    return egl_eglQueryContext(dpy, ctx, attribute, value);
-}
-
-MG_EXPORT EGLBoolean eglWaitGL(void) {
-    LOAD_EGL(eglWaitGL)
-    return egl_eglWaitGL();
-}
-
-MG_EXPORT EGLBoolean eglWaitNative(EGLint engine) {
-    LOAD_EGL(eglWaitNative)
-    return egl_eglWaitNative(engine);
-}
-
-MG_EXPORT EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface surface) {
-    LOAD_EGL(eglSwapBuffers)
-    return egl_eglSwapBuffers(dpy, surface);
-}
-
-MG_EXPORT EGLBoolean eglCopyBuffers(EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target) {
-    LOAD_EGL(eglCopyBuffers)
-    return egl_eglCopyBuffers(dpy, surface, target);
-}
-
-MG_EXPORT EGLDisplay eglGetPlatformDisplay(EGLenum platform, void *native_display, const EGLAttrib *attrib_list) {
-    LOAD_EGL(eglGetPlatformDisplay)
-    return egl_eglGetPlatformDisplay(platform, native_display, (const EGLint *)attrib_list);
-}
-
-#endif

MG/MG_GL/Implementations/EGL/GLES/EGL_WRAP.h

@@ -1,14 +0,0 @@
-//
-// Created by BZLZHH on 2025/4/26.
-//
-
-#ifndef MOBILEGL_EGL_GLES_EGL_WRAP_H
-#define MOBILEGL_EGL_GLES_EGL_WRAP_H
-
-#include "../../../../Includes.h"
-
-#if BACKEND_TYPE == BACKEND_GLES
-
-#endif
-
-#endif //MOBILEGL_EGL_GLES_EGL_WRAP_H

MG/MG_GL/Implementations/EGL/VK/EGL_EMU.cpp

@@ -1,551 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/30.
-//
-
-#include "EGL_EMU.h"
-
-#if BACKEND_TYPE == BACKEND_VULKAN
-
-std::atomic<uintptr_t> g_nextContextId{1};
-std::atomic<uintptr_t> g_nextSurfaceId{1};
-EGLenum g_currentAPI = EGL_OPENGL_ES_API;
-
-std::mutex g_globalMutex;
-ankerl::unordered_map<EGLDisplay, VulkanDisplay> g_displays;
-ankerl::unordered_map<EGLSurface, VulkanSurface> g_surfaces;
-ankerl::unordered_map<EGLContext, VulkanContext> g_contexts;
-EGLint g_lastError = EGL_SUCCESS;
-
-thread_local EGLContext tls_currentContext = EGL_NO_CONTEXT;
-thread_local EGLSurface tls_drawSurface = EGL_NO_SURFACE;
-thread_local EGLSurface tls_readSurface = EGL_NO_SURFACE;
-
-static VkResult CreateRenderPass(VulkanDisplay& display, VulkanContext& ctx) {
-    VkAttachmentDescription colorAttachment{};
-    colorAttachment.format = VK_FORMAT_B8G8R8A8_SRGB;
-    colorAttachment.samples = VK_SAMPLE_COUNT_1_BIT;
-    colorAttachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
-    colorAttachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
-    colorAttachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
-    colorAttachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
-    colorAttachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
-    colorAttachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
-
-    VkAttachmentReference colorRef{0, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL};
-
-    VkSubpassDescription subpass{};
-    subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
-    subpass.colorAttachmentCount = 1;
-    subpass.pColorAttachments = &colorRef;
-
-    VkRenderPassCreateInfo rpInfo{};
-    rpInfo.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
-    rpInfo.subpassCount = 1;
-    rpInfo.pSubpasses = &subpass;
-    rpInfo.attachmentCount = 1;
-    rpInfo.pAttachments = &colorAttachment;
-
-    return vkCreateRenderPass(display.device, &rpInfo, nullptr, &ctx.renderPass);
-}
-
-EGLDisplay eglGetDisplay(NativeDisplayType display) {
-    std::lock_guard<std::mutex> lock(g_globalMutex);
-    static uintptr_t nextDisplayId = 1;
-    EGLDisplay newDisplay = (EGLDisplay)nextDisplayId++;
-    g_displays[newDisplay].initialized = false;
-    return newDisplay;
-}
-
-EGLBoolean eglInitialize(EGLDisplay dpy, EGLint* major, EGLint* minor) {
-    VulkanDisplay& vkDpy = g_displays[dpy];
-    if (vkDpy.initialized) return EGL_TRUE;
-
-    VkInstanceCreateInfo instInfo{};
-    instInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
-    const char* extensions[] = {
-            VK_KHR_SURFACE_EXTENSION_NAME,
-            VK_KHR_ANDROID_SURFACE_EXTENSION_NAME
-    };
-    instInfo.enabledExtensionCount = 2;
-    instInfo.ppEnabledExtensionNames = extensions;
-
-    if (vkCreateInstance(&instInfo, nullptr, &vkDpy.instance) != VK_SUCCESS) {
-        g_lastError = EGL_NOT_INITIALIZED;
-        return EGL_FALSE;
-    }
-
-    uint32_t devCount = 0;
-    vkEnumeratePhysicalDevices(vkDpy.instance, &devCount, nullptr);
-    std::vector<VkPhysicalDevice> devices(devCount);
-    vkEnumeratePhysicalDevices(vkDpy.instance, &devCount, devices.data());
-    vkDpy.physicalDevice = devices[0];
-
-
-    uint32_t queueFamilyCount = 0;
-    vkGetPhysicalDeviceQueueFamilyProperties(vkDpy.physicalDevice, &queueFamilyCount, nullptr);
-    std::vector<VkQueueFamilyProperties> queueFamilies(queueFamilyCount);
-    vkGetPhysicalDeviceQueueFamilyProperties(vkDpy.physicalDevice, &queueFamilyCount, queueFamilies.data());
-
-    // 寻找支持图形和呈现的队列家族
-    bool foundQueue = false;
-    for (uint32_t i = 0; i < queueFamilyCount; ++i) {
-        VkBool32 presentSupport = VK_FALSE;
-        vkGetPhysicalDeviceSurfaceSupportKHR(vkDpy.physicalDevice, i, VK_NULL_HANDLE, &presentSupport);
-
-        if ((queueFamilies[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) && presentSupport) {
-            vkDpy.graphicsQueueFamily = i;
-            foundQueue = true;
-            break;
-        }
-    }
-
-    if (!foundQueue) {
-        g_lastError = EGL_NOT_INITIALIZED;
-        return EGL_FALSE;
-    }
-
-    // 创建逻辑设备时请求队列
-    float queuePriority = 1.0f;
-    VkDeviceQueueCreateInfo queueInfo{};
-    queueInfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
-    queueInfo.queueFamilyIndex = vkDpy.graphicsQueueFamily;
-    queueInfo.queueCount = 1;
-    queueInfo.pQueuePriorities = &queuePriority;
-
-    const char* devExtensions[] = {VK_KHR_SWAPCHAIN_EXTENSION_NAME};
-    VkDeviceCreateInfo devInfo{};
-    devInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
-    devInfo.pQueueCreateInfos = &queueInfo;
-    devInfo.queueCreateInfoCount = 1;
-    devInfo.ppEnabledExtensionNames = devExtensions;
-    devInfo.enabledExtensionCount = 1;
-
-    if (vkCreateDevice(vkDpy.physicalDevice, &devInfo, nullptr, &vkDpy.device) != VK_SUCCESS) {
-        g_lastError = EGL_NOT_INITIALIZED;
-        return EGL_FALSE;
-    }
-
-    vkDpy.vkCreateSwapchainKHR = (PFN_vkCreateSwapchainKHR)vkGetDeviceProcAddr(vkDpy.device, "vkCreateSwapchainKHR");
-    vkDpy.vkDestroySwapchainKHR = (PFN_vkDestroySwapchainKHR)vkGetDeviceProcAddr(vkDpy.device, "vkDestroySwapchainKHR");
-    vkDpy.vkGetSwapchainImagesKHR = (PFN_vkGetSwapchainImagesKHR)vkGetDeviceProcAddr(vkDpy.device, "vkGetSwapchainImagesKHR");
-    vkDpy.vkAcquireNextImageKHR = (PFN_vkAcquireNextImageKHR)vkGetDeviceProcAddr(vkDpy.device, "vkAcquireNextImageKHR");
-    vkDpy.vkQueuePresentKHR = (PFN_vkQueuePresentKHR)vkGetDeviceProcAddr(vkDpy.device, "vkQueuePresentKHR");
-    vkGetDeviceQueue(vkDpy.device, vkDpy.graphicsQueueFamily, 0, &vkDpy.graphicsQueue);
-    vkDpy.presentQueue = vkDpy.graphicsQueue;
-    vkDpy.initialized = true;
-    if (major) *major = 1;
-    if (minor) *minor = 5;
-    return EGL_TRUE;
-}
-
-EGLBoolean eglChooseConfig(EGLDisplay dpy, const EGLint* attrib_list, EGLConfig* configs, EGLint config_size, EGLint* num_config) {
-    VulkanDisplay& vkDpy = g_displays[dpy];
-    EGLInternalConfig defaultConfig{ VK_FORMAT_B8G8R8A8_SRGB, VK_COLOR_SPACE_SRGB_NONLINEAR_KHR, 1 };
-    vkDpy.configs = {defaultConfig};
-
-    EGLint returnCount = 1;
-    if (configs && config_size > 0) {
-        configs[0] = (EGLConfig)0;
-    }
-
-    if (num_config) *num_config = returnCount;
-    return EGL_TRUE;
-}
-
-EGLSurface eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint* attrib_list) {
-    VulkanDisplay& disp = g_displays[dpy];
-    static uintptr_t nextSurfId = 1;
-
-    ANativeWindow* nativeWindow = static_cast<ANativeWindow*>(window);
-    if (!nativeWindow || ANativeWindow_getWidth(nativeWindow) <= 0 || ANativeWindow_getHeight(nativeWindow) <= 0) {
-        g_lastError = EGL_BAD_NATIVE_WINDOW;
-        return EGL_NO_SURFACE;
-    }
-
-    auto vkCreateAndroidSurfaceKHR = (PFN_vkCreateAndroidSurfaceKHR)vkGetInstanceProcAddr(
-            disp.instance, "vkCreateAndroidSurfaceKHR");
-    if (!vkCreateAndroidSurfaceKHR) {
-        g_lastError = EGL_BAD_ALLOC;
-        return EGL_NO_SURFACE;
-    }
-
-    VulkanSurface surface{};
-    surface.type = VulkanSurface::WINDOW;
-
-    VkAndroidSurfaceCreateInfoKHR createInfo{};
-    createInfo.sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR;
-    createInfo.window = nativeWindow;
-    VkResult result = vkCreateAndroidSurfaceKHR(disp.instance, &createInfo, nullptr, &surface.surface);
-    if (result != VK_SUCCESS) {
-        g_lastError = (result == VK_ERROR_NATIVE_WINDOW_IN_USE_KHR) ?
-                      EGL_BAD_NATIVE_WINDOW : EGL_BAD_ALLOC;
-        return EGL_NO_SURFACE;
-    }
-
-    VkBool32 supported = VK_FALSE;
-    vkGetPhysicalDeviceSurfaceSupportKHR(disp.physicalDevice,
-                                         disp.graphicsQueueFamily,
-                                         surface.surface,
-                                         &supported);
-    if (!supported) {
-        vkDestroySurfaceKHR(disp.instance, surface.surface, nullptr);
-        g_lastError = EGL_BAD_MATCH;
-        return EGL_NO_SURFACE;
-    }
-
-    VkSurfaceCapabilitiesKHR caps;
-    vkGetPhysicalDeviceSurfaceCapabilitiesKHR(disp.physicalDevice, surface.surface, &caps);
-
-    const VkExtent2D swapchainExtent = {
-            (std::max)(caps.minImageExtent.width,  (uint32_t)ANativeWindow_getWidth(nativeWindow)),
-            (std::max)(caps.minImageExtent.height, (uint32_t)ANativeWindow_getHeight(nativeWindow))
-    };
-
-    VkSwapchainCreateInfoKHR swapInfo{};
-    swapInfo.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
-    swapInfo.surface = surface.surface;
-    swapInfo.minImageCount = 3;
-    swapInfo.imageFormat = VK_FORMAT_R8G8B8A8_SRGB;
-    swapInfo.imageColorSpace = VK_COLOR_SPACE_SRGB_NONLINEAR_KHR;
-    swapInfo.imageExtent = swapchainExtent;
-    swapInfo.imageArrayLayers = 1;
-    swapInfo.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
-    swapInfo.preTransform = caps.currentTransform;
-    swapInfo.compositeAlpha = VK_COMPOSITE_ALPHA_INHERIT_BIT_KHR;
-    swapInfo.presentMode = VK_PRESENT_MODE_MAILBOX_KHR;
-
-    if (disp.vkCreateSwapchainKHR(disp.device, &swapInfo, nullptr, &surface.swapchain) != VK_SUCCESS) {
-        vkDestroySurfaceKHR(disp.instance, surface.surface, nullptr);
-        g_lastError = EGL_BAD_ALLOC;
-        return EGL_NO_SURFACE;
-    }
-
-    uint32_t imageCount = 0;
-    disp.vkGetSwapchainImagesKHR(disp.device, surface.swapchain, &imageCount, nullptr);
-    surface.images.resize(imageCount);
-    disp.vkGetSwapchainImagesKHR(disp.device, surface.swapchain, &imageCount, surface.images.data());
-
-    surface.imageViews.resize(imageCount);
-    for (uint32_t i = 0; i < imageCount; ++i) {
-        VkImageViewCreateInfo viewInfo{};
-        viewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
-        viewInfo.image = surface.images[i];
-        viewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
-        viewInfo.format = swapInfo.imageFormat;
-        viewInfo.subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1};
-
-        if (vkCreateImageView(disp.device, &viewInfo, nullptr, &surface.imageViews[i]) != VK_SUCCESS) {
-            // Handle error
-        }
-    }
-
-    ANativeWindow_acquire(nativeWindow);
-    ANativeWindow_setBuffersGeometry(nativeWindow,
-                                     swapchainExtent.width,
-                                     swapchainExtent.height,
-                                     AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM);
-    EGLSurface surfId = (EGLSurface)nextSurfId++;
-    g_surfaces[surfId] = std::move(surface);
-    return surfId;
-}
-
-EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext shareCtx, const EGLint* attrib_list) {
-    static uintptr_t nextCtxId = 1;
-    VulkanDisplay &disp = g_displays[dpy];
-
-    VulkanContext ctx{};
-    VkCommandPoolCreateInfo poolInfo{};
-    poolInfo.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO;
-    poolInfo.queueFamilyIndex = 0;
-    if (vkCreateCommandPool(disp.device, &poolInfo, nullptr, &ctx.cmdPool) != VK_SUCCESS) {
-        g_lastError = EGL_BAD_ALLOC;
-        return EGL_NO_CONTEXT;
-    }
-
-    ctx.frameFences.resize(2);
-    ctx.acquireSemaphores.resize(2);
-    ctx.presentSemaphores.resize(2);
-    for (uint32_t i = 0; i < 2; ++i) {
-        VkFenceCreateInfo fenceInfo{VK_STRUCTURE_TYPE_FENCE_CREATE_INFO, nullptr,
-                                    VK_FENCE_CREATE_SIGNALED_BIT};
-        vkCreateFence(disp.device, &fenceInfo, nullptr, &ctx.frameFences[i]);
-
-        VkSemaphoreCreateInfo semInfo{VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO};
-        vkCreateSemaphore(disp.device, &semInfo, nullptr, &ctx.acquireSemaphores[i]);
-        vkCreateSemaphore(disp.device, &semInfo, nullptr, &ctx.presentSemaphores[i]);
-    }
-
-    if (CreateRenderPass(disp, ctx) != VK_SUCCESS) {
-        g_lastError = EGL_BAD_CONFIG;
-        return EGL_NO_CONTEXT;
-    }
-
-    EGLContext ctxId = (EGLContext)nextCtxId++;
-    g_contexts[ctxId] = std::move(ctx);
-    return ctxId;
-}
-
-EGLint eglGetError() {
-    return EGL_SUCCESS;
-}
-
-EGLBoolean eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) {
-    std::lock_guard<std::mutex> lock(g_globalMutex);
-
-    if (dpy == EGL_NO_DISPLAY || (ctx != EGL_NO_CONTEXT && !g_contexts.count(ctx)) ||
-        (draw != EGL_NO_SURFACE && !g_surfaces.count(draw)) ||
-        (read != EGL_NO_SURFACE && !g_surfaces.count(read))) {
-        g_lastError = EGL_BAD_PARAMETER;
-        return EGL_FALSE;
-    }
-
-    if (tls_currentContext != EGL_NO_CONTEXT) {
-        VulkanContext& oldCtx = g_contexts[tls_currentContext];
-        if (oldCtx.currentCmdBuffer) {
-            vkEndCommandBuffer(oldCtx.currentCmdBuffer);
-            oldCtx.currentCmdBuffer = VK_NULL_HANDLE;
-        }
-    }
-
-    if (ctx != EGL_NO_CONTEXT) {
-        VulkanContext& newCtx = g_contexts[ctx];
-        VulkanDisplay& disp = g_displays[dpy];
-
-        VkCommandBufferAllocateInfo allocInfo{};
-        allocInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO;
-        allocInfo.commandPool = newCtx.cmdPool;
-        allocInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
-        allocInfo.commandBufferCount = 1;
-
-        if (vkAllocateCommandBuffers(disp.device, &allocInfo, &newCtx.currentCmdBuffer) != VK_SUCCESS) {
-            g_lastError = EGL_BAD_ALLOC;
-            return EGL_FALSE;
-        }
-
-        VkCommandBufferBeginInfo beginInfo{};
-        beginInfo.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO;
-        vkBeginCommandBuffer(newCtx.currentCmdBuffer, &beginInfo);
-    }
-
-    tls_currentContext = ctx;
-    tls_drawSurface = draw;
-    tls_readSurface = read;
-    return EGL_TRUE;
-}
-
-EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx) {
-    std::lock_guard<std::mutex> lock(g_globalMutex);
-
-    if (!g_contexts.count(ctx)) {
-        g_lastError = EGL_BAD_CONTEXT;
-        return EGL_FALSE;
-    }
-
-    VulkanContext& vkCtx = g_contexts[ctx];
-    VulkanDisplay& disp = g_displays[dpy];
-
-    vkDeviceWaitIdle(disp.device);
-
-    vkDestroyCommandPool(disp.device, vkCtx.cmdPool, nullptr);
-    vkDestroyRenderPass(disp.device, vkCtx.renderPass, nullptr);
-
-    for (auto& fence : vkCtx.frameFences)
-        vkDestroyFence(disp.device, fence, nullptr);
-    for (auto& sem : vkCtx.acquireSemaphores)
-        vkDestroySemaphore(disp.device, sem, nullptr);
-    for (auto& sem : vkCtx.presentSemaphores)
-        vkDestroySemaphore(disp.device, sem, nullptr);
-
-    g_contexts.erase(ctx);
-    if (tls_currentContext == ctx)
-        tls_currentContext = EGL_NO_CONTEXT;
-
-    return EGL_TRUE;
-}
-
-EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface) {
-    std::lock_guard<std::mutex> lock(g_globalMutex);
-
-    if (!g_surfaces.count(surface)) {
-        g_lastError = EGL_BAD_SURFACE;
-        return EGL_FALSE;
-    }
-
-    VulkanSurface& surf = g_surfaces[surface];
-    VulkanDisplay& disp = g_displays[dpy];
-
-    vkDeviceWaitIdle(disp.device);
-
-    if (surf.type == VulkanSurface::WINDOW) {
-        disp.vkDestroySwapchainKHR(disp.device, surf.swapchain, nullptr);
-        vkDestroySurfaceKHR(disp.instance, surf.surface, nullptr);
-        for (auto& view : surf.imageViews)
-            vkDestroyImageView(disp.device, view, nullptr);
-    } else {
-        vkDestroyImageView(disp.device, surf.pbufferImageView, nullptr);
-        vkDestroyImage(disp.device, surf.pbufferImage, nullptr);
-    }
-
-    g_surfaces.erase(surface);
-    return EGL_TRUE;
-}
-
-EGLBoolean eglTerminate(EGLDisplay dpy) {
-    std::lock_guard<std::mutex> lock(g_globalMutex);
-
-    if (!g_displays.count(dpy)) {
-        g_lastError = EGL_BAD_DISPLAY;
-        return EGL_FALSE;
-    }
-
-    VulkanDisplay& disp = g_displays[dpy];
-
-    for (auto& [ctxId, ctx] : g_contexts)
-        eglDestroyContext(dpy, ctxId);
-    for (auto& [surfId, surf] : g_surfaces)
-        eglDestroySurface(dpy, surfId);
-
-    vkDestroyDevice(disp.device, nullptr);
-    vkDestroyInstance(disp.instance, nullptr);
-
-    g_displays.erase(dpy);
-    return EGL_TRUE;
-}
-
-EGLBoolean eglReleaseThread(void) {
-    tls_currentContext = EGL_NO_CONTEXT;
-    tls_drawSurface = EGL_NO_SURFACE;
-    tls_readSurface = EGL_NO_SURFACE;
-    return EGL_TRUE;
-}
-
-EGLContext eglGetCurrentContext(void) {
-    return tls_currentContext;
-}
-
-EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value) {
-    VulkanDisplay& disp = g_displays[dpy];
-    if (!disp.configs.empty() && config == (EGLConfig)0) {
-        switch (attribute) {
-            case EGL_BUFFER_SIZE:  *value = 32; break;
-            case EGL_RED_SIZE:      *value = 8;  break;
-            case EGL_GREEN_SIZE:    *value = 8;  break;
-            case EGL_BLUE_SIZE:     *value = 8;  break;
-            case EGL_ALPHA_SIZE:    *value = 8;  break;
-            case EGL_CONFIG_ID:     *value = 1;  break;
-            default: return EGL_FALSE;
-        }
-        return EGL_TRUE;
-    }
-    return EGL_FALSE;
-}
-
-EGLBoolean eglBindAPI(EGLenum api) {
-    if (api == EGL_OPENGL_ES_API) {
-        g_currentAPI = api;
-        return EGL_TRUE;
-    }
-    return EGL_FALSE;
-}
-
-EGLSurface eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list) {
-    VulkanDisplay& disp = g_displays[dpy];
-    VulkanSurface surface{};
-    surface.type = VulkanSurface::PBUFFER;
-
-    VkImageCreateInfo imgInfo{};
-    imgInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
-    imgInfo.imageType = VK_IMAGE_TYPE_2D;
-    imgInfo.format = VK_FORMAT_R8G8B8A8_SRGB;
-    imgInfo.extent = {512, 512, 1};
-    imgInfo.mipLevels = 1;
-    imgInfo.arrayLayers = 1;
-    imgInfo.samples = VK_SAMPLE_COUNT_1_BIT;
-    imgInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
-    imgInfo.usage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
-    imgInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
-
-    if (vkCreateImage(disp.device, &imgInfo, nullptr, &surface.pbufferImage) != VK_SUCCESS) {
-        g_lastError = EGL_BAD_ALLOC;
-        return EGL_NO_SURFACE;
-    }
-
-    VkImageViewCreateInfo viewInfo{};
-    viewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
-    viewInfo.image = surface.pbufferImage;
-    viewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
-    viewInfo.format = imgInfo.format;
-    viewInfo.subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1};
-
-    if (vkCreateImageView(disp.device, &viewInfo, nullptr, &surface.pbufferImageView) != VK_SUCCESS) {
-        vkDestroyImage(disp.device, surface.pbufferImage, nullptr);
-        g_lastError = EGL_BAD_ALLOC;
-        return EGL_NO_SURFACE;
-    }
-
-    EGLSurface surfId = (EGLSurface)g_nextSurfaceId++;
-    g_surfaces[surfId] = surface;
-    return surfId;
-}
-
-EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw) {
-    VulkanSurface& surf = g_surfaces[draw];
-    VulkanDisplay& disp = g_displays[dpy];
-    VulkanContext& ctx = g_contexts[tls_currentContext];
-    
-    if (!disp.presentQueue) {
-        g_lastError = EGL_BAD_DISPLAY;
-        return EGL_FALSE;
-    }
-    
-    if (surf.type != VulkanSurface::WINDOW) {
-        g_lastError = EGL_BAD_SURFACE;
-        return EGL_FALSE;
-    }
-
-    vkEndCommandBuffer(ctx.currentCmdBuffer);
-
-    VkSubmitInfo submitInfo{};
-    submitInfo.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
-    submitInfo.commandBufferCount = 1;
-    submitInfo.pCommandBuffers = &ctx.currentCmdBuffer;
-
-    vkQueueSubmit(disp.graphicsQueue, 1, &submitInfo, VK_NULL_HANDLE);
-
-    VkPresentInfoKHR presentInfo{};
-    presentInfo.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
-    presentInfo.swapchainCount = 1;
-    presentInfo.pSwapchains = &surf.swapchain;
-    presentInfo.pImageIndices = &ctx.frameIndex;
-
-    VkResult result = disp.vkQueuePresentKHR(disp.presentQueue, &presentInfo);
-    if (result != VK_SUCCESS) {
-        g_lastError = EGL_BAD_ALLOC;
-        return EGL_FALSE;
-    }
-
-    ctx.frameIndex = (ctx.frameIndex + 1) % surf.images.size();
-    return EGL_TRUE;
-}
-
-EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval) {
-    // TODO
-    return EGL_TRUE;
-}
-
-EGLSurface eglGetCurrentSurface(EGLint readdraw) {
-    return (readdraw == EGL_READ) ? tls_readSurface : tls_drawSurface;
-}
-
-EGLBoolean eglQuerySurface(EGLDisplay display, EGLSurface surface, EGLint attribute, EGLint *value) {
-    VulkanSurface& surf = g_surfaces[surface];
-    switch (attribute) {
-        case EGL_WIDTH:  *value = surf.extent.width;  break;
-        case EGL_HEIGHT: *value = surf.extent.height; break;
-        case EGL_CONFIG_ID: *value = 1; break;
-        default: return EGL_FALSE;
-    }
-    return EGL_TRUE;
-}
-
-#endif

MG/MG_GL/Implementations/EGL/VK/EGL_EMU.h

@@ -1,103 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/30.
-//
-
-#ifndef MOBILEGL_EGL_VK_EMU_H
-#define MOBILEGL_EGL_VK_EMU_H
-
-#include "../../../../Includes.h"
-
-#if BACKEND_TYPE == BACKEND_VULKAN
-
-struct EGLInternalConfig {
-    VkFormat format;
-    VkColorSpaceKHR colorSpace;
-    uint32_t samples;
-};
-
-struct VulkanDisplay {
-    VkInstance instance;
-    VkPhysicalDevice physicalDevice;
-    VkDevice device;
-    uint32_t graphicsQueueFamily;
-    VkQueue graphicsQueue;
-    std::vector<EGLInternalConfig> configs;
-    bool initialized = false;
-    PFN_vkCreateSwapchainKHR vkCreateSwapchainKHR;
-    PFN_vkDestroySwapchainKHR vkDestroySwapchainKHR;
-    PFN_vkGetSwapchainImagesKHR vkGetSwapchainImagesKHR;
-    PFN_vkAcquireNextImageKHR vkAcquireNextImageKHR;
-    PFN_vkQueuePresentKHR vkQueuePresentKHR;
-    VkRenderPass defaultRenderPass;
-    VkQueue presentQueue = VK_NULL_HANDLE;
-};
-
-struct VulkanSurface {
-    enum Type { WINDOW, PBUFFER } type;
-    VkSurfaceKHR surface;
-    VkSwapchainKHR swapchain;
-    std::vector<VkImage> images;
-    std::vector<VkImageView> imageViews;
-    VkExtent2D extent;
-    VkFormat format;
-    VkImage pbImage;
-    VkImageView pbImageView;
-    VkDeviceMemory pbMemory;
-    VkFramebuffer framebuffer;
-    VkImage pbufferImage;
-    VkImageView pbufferImageView;
-};
-
-struct VulkanContext {
-    VkCommandPool cmdPool;
-    std::vector<VkCommandBuffer> cmdBuffers;
-    uint32_t currentFrame = 0;
-    VkRenderPass renderPass;
-    VkPipelineLayout pipelineLayout;
-    VkPipeline graphicsPipeline;
-    std::vector<VkFence> frameFences;
-    std::vector<VkSemaphore> acquireSemaphores;
-    std::vector<VkSemaphore> presentSemaphores;
-    VulkanSurface* boundSurface = nullptr;
-    VkCommandBuffer currentCmdBuffer;
-    uint32_t frameIndex;
-    VkClearColorValue clearColor;
-};
-
-extern std::atomic<uintptr_t> g_nextContextId;
-extern std::atomic<uintptr_t> g_nextSurfaceId;
-extern EGLenum g_currentAPI;
-
-extern std::mutex g_globalMutex;
-extern ankerl::unordered_map<EGLDisplay, VulkanDisplay> g_displays;
-extern ankerl::unordered_map<EGLSurface, VulkanSurface> g_surfaces;
-extern ankerl::unordered_map<EGLContext, VulkanContext> g_contexts;
-extern EGLint g_lastError;
-
-extern thread_local EGLContext tls_currentContext;
-extern thread_local EGLSurface tls_drawSurface;
-extern thread_local EGLSurface tls_readSurface;
-
-MG_EXPORT EGLSurface eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config, NativeWindowType window, const EGLint* attrib_list);
-MG_EXPORT EGLBoolean eglChooseConfig(EGLDisplay dpy, const EGLint* attrib_list, EGLConfig* configs, EGLint config_size, EGLint* num_config);
-MG_EXPORT EGLContext eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext shareCtx, const EGLint* attrib_list);
-MG_EXPORT EGLBoolean eglInitialize(EGLDisplay dpy, EGLint* major, EGLint* minor);
-MG_EXPORT EGLDisplay eglGetDisplay(NativeDisplayType display);
-MG_EXPORT EGLint eglGetError();
-MG_EXPORT EGLBoolean eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
-MG_EXPORT EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx);
-MG_EXPORT EGLBoolean eglDestroySurface(EGLDisplay dpy, EGLSurface surface);
-MG_EXPORT EGLBoolean eglTerminate(EGLDisplay dpy);
-MG_EXPORT EGLBoolean eglReleaseThread(void);
-MG_EXPORT EGLContext eglGetCurrentContext(void);
-MG_EXPORT EGLBoolean eglGetConfigAttrib(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value);
-MG_EXPORT EGLBoolean eglBindAPI(EGLenum api);
-MG_EXPORT EGLSurface eglGetCurrentSurface(EGLint readdraw);
-MG_EXPORT EGLBoolean eglQuerySurface(EGLDisplay display, EGLSurface surface, EGLint attribute, EGLint *value);
-MG_EXPORT EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval);
-MG_EXPORT EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface draw);
-MG_EXPORT EGLSurface eglCreatePbufferSurface(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list);
-
-#endif
-
-#endif //MOBILEGL_EGL_VK_EMU_H

MG/MG_GL/Implementations/GL/Buffer/GL_Buffer.cpp

@@ -1,188 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "GL_Buffer.h"
-
-namespace MG_GL::GL {
-    void* MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length,
-                         GLbitfield access) {
-        MG_Util::Debug::LogD("glMapBufferRange, target: %s, offset: %lld, length: %lld, access: 0x%X",
-                             MG_Util::Debug::GLEnumToString(target),
-                             static_cast<long long>(offset),
-                             static_cast<long long>(length),
-                             access);
-        void* mappedPointer = nullptr;
-        GLenum result = MG_State::AcquireBufferMemoryRange(target, offset, length, access, &mappedPointer);
-
-        if (result == GL_NO_ERROR) {
-            MG_Util::Debug::LogD("Mapped pointer: %p", mappedPointer);
-            return mappedPointer;
-        }
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error mapping buffer range: %s", MG_Util::Debug::GLEnumToString(result));
-        return nullptr;
-    }
-
-    void FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length) {
-        MG_Util::Debug::LogD("glFlushMappedBufferRange, target: %s, offset: %lld, length: %lld",
-                             MG_Util::Debug::GLEnumToString(target),
-                             static_cast<long long>(offset),
-                             static_cast<long long>(length));
-        GLenum result = MG_State::SyncBufferMemory(target, offset, length);
-        if (result == GL_NO_ERROR) {
-            return;
-        }
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error flushing mapped buffer range: %s",
-                             MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void CopyBufferSubData(GLenum readTarget, GLenum writeTarget,
-                           GLintptr readOffset, GLintptr writeOffset,
-                           GLsizeiptr size) {
-        MG_Util::Debug::LogD("glCopyBufferSubData, readTarget: %s, writeTarget: %s, "
-                             "readOffset: %lld, writeOffset: %lld, size: %lld",
-                             MG_Util::Debug::GLEnumToString(readTarget),
-                             MG_Util::Debug::GLEnumToString(writeTarget),
-                             static_cast<long long>(readOffset),
-                             static_cast<long long>(writeOffset),
-                             static_cast<long long>(size));
-        GLenum result = MG_State::CopyBufferRange(readTarget, writeTarget, readOffset, writeOffset, size);
-        if (result == GL_NO_ERROR) {
-            return;
-        }
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error copying buffer subdata: %s",
-                             MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    void* MapBuffer(GLenum target, GLenum access) {
-        MG_Util::Debug::LogD("glMapBuffer(target=0x%x, access=0x%x)", target, access);
-        void* mappedPtr = nullptr;
-        GLenum err = MG_State::AcquireBufferMemory(target, access, &mappedPtr);
-        if (err != GL_NO_ERROR) {
-            MG_State::SetError(err);
-            MG_Util::Debug::LogE("glMapBuffer failed: %s", MG_Util::Debug::GLEnumToString(err));
-            return nullptr;
-        }
-        MG_Util::Debug::LogD("glMapBuffer returns %p", mappedPtr);
-        return mappedPtr;
-    }
-    
-    GLboolean UnmapBuffer(GLenum target) {
-        MG_Util::Debug::LogD("glUnmapBuffer(target=0x%x)", target);
-        GLenum err = MG_State::ReleaseBufferMemory(target);
-        if (err != GL_NO_ERROR) {
-            MG_State::SetError(err);
-            MG_Util::Debug::LogE("glUnmapBuffer failed: %s", MG_Util::Debug::GLEnumToString(err));
-            return GL_FALSE;
-        }
-        MG_Util::Debug::LogD("glUnmapBuffer succeeded");
-        return GL_TRUE;
-    }
-
-    void BindBuffer(GLenum target, GLuint buffer) {
-        MG_Util::Debug::LogD("glBindBuffer, target: %s, buffer: %d", MG_Util::Debug::GLEnumToString(target), buffer);
-        if (buffer != 0 &&
-            MG_State::ValidateGeneratedName(buffer) &&
-            !MG_State::ValidateAllocatedBufferHandle(buffer)) {
-            MG_Util::Debug::LogD("Actually creating buffer: %u", buffer);
-            GLenum result = MG_State::CreateBuffer(buffer);
-            if (result != GL_NO_ERROR) {
-                MG_State::SetError(result);
-                MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-                return;
-            }
-        }
-
-        if (buffer != 0 && !MG_State::ValidateAllocatedBufferHandle(buffer)) {
-            MG_State::SetError(GL_INVALID_VALUE);
-            MG_Util::Debug::LogE("Invalid buffer handle: %u", buffer);
-            return;
-        }
-        GLenum result = MG_State::BindBuffer(target, buffer);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void BufferData(GLenum target, GLsizeiptr size, const void* data, GLenum usage) {
-        MG_Util::Debug::LogD("glBufferData, target: %s, size: %zd, data: %p, usage: %s",
-                             MG_Util::Debug::GLEnumToString(target), size, data, MG_Util::Debug::GLEnumToString(usage));
-        GLenum result = MG_State::CommitBufferStorage(target, size, data, usage);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void GetBufferParameteriv(GLenum target, GLenum pname, GLint* params) {
-        MG_Util::Debug::LogD("glGetBufferParameteriv, target: %d, pname: %d, params: %p",
-                             target, pname, params);
-        GLenum result = MG_State::QueryBufferPropertyIntVector(target, pname, params);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("GetBufferParameteriv not implemented");
-    }
-    
-    void GenBuffers(GLsizei n, GLuint* buffers) {
-        MG_Util::Debug::LogD("glGenBuffers, n: %d, buffers: %p", n, buffers);
-
-        if (n < 0) {
-            MG_State::SetError(GL_INVALID_VALUE);
-            MG_Util::Debug::LogE("Invalid buffer count: %d", n);
-            return;
-        }
-
-        GLenum result = MG_State::GenBufferNames(n, buffers);
-        if (result == GL_NO_ERROR) {
-            MG_Util::Debug::LogD("Generated buffer names:");
-            for (GLsizei i = 0; i < n; ++i) {
-                MG_Util::Debug::LogD("  Buffer[%d] = %u", i, buffers[i]);
-            }
-            return;
-        }
-
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    GLboolean IsBuffer(GLuint buffer) {
-        MG_Util::Debug::LogD("glIsBuffer, buffer: %u", buffer);
-
-        if (buffer == 0) {
-            return GL_FALSE;
-        }
-
-        bool isValid = MG_State::ValidateAllocatedBufferHandle(buffer);
-        // Should we report gl error here or in MG_State? 
-        MG_Util::Debug::LogD("Buffer %u is %s", buffer, isValid ? "valid" : "invalid");
-        return isValid ? GL_TRUE : GL_FALSE;
-    }
-
-    void BufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, const void* data) {
-        MG_Util::Debug::LogD("glBufferSubData, target: %s, offset: %lld, size: %lld, data: %p",
-                             MG_Util::Debug::GLEnumToString(target),
-                             static_cast<long long>(offset),
-                             static_cast<long long>(size),
-                             data);
-        GLenum result = MG_State::CommitBufferStorageRegion(target, offset, size, data);
-        if (result != GL_NO_ERROR) {
-            MG_State::SetError(result);
-            MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-        }
-    }
-    void DeleteBuffers(GLsizei n, const GLuint *buffers) {
-        MG_Util::Debug::LogD("glDeleteBuffers, n: %d, buffers: %p", n, buffers);
-
-        GLenum result = MG_State::DeleteBuffers(n, buffers);
-        if (result == GL_NO_ERROR)
-            return;
-
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-}

MG/MG_GL/Implementations/GL/Buffer/GL_Buffer.h

@@ -1,25 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_GL_BUFFER_H
-#define MOBILEGL_GL_BUFFER_H
-
-#include "../../../../Includes.h"
-
-namespace MG_GL::GL {
-    void* MapBufferRange(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access);
-    void FlushMappedBufferRange(GLenum target, GLintptr offset, GLsizeiptr length);
-    void CopyBufferSubData(GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
-    void* MapBuffer(GLenum target, GLenum access);
-    GLboolean UnmapBuffer(GLenum target);
-    void BindBuffer(GLenum target, GLuint buffer);
-    void BufferData(GLenum target, GLsizeiptr size, const void* data, GLenum usage);
-    void BufferSubData(GLenum target, GLintptr offset, GLsizeiptr size, const void* data);
-    void GetBufferParameteriv(GLenum target, GLenum pname, GLint* params);
-    void GenBuffers(GLsizei n, GLuint* buffers);
-    void DeleteBuffers(GLsizei n, const GLuint *buffers);
-    GLboolean IsBuffer(GLuint buffer);
-}
-
-#endif //MOBILEGL_GL_BUFFER_H

MG/MG_GL/Implementations/GL/Common/GL_Common.cpp

@@ -1,113 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "GL_Common.h"
-
-namespace MG_GL::GL {
-    void Clear(GLbitfield mask) {
-        MG_Util::Debug::LogD("glClear, mask: 0x%X", mask);
-        GLenum result = MG_State::glClear(mask);
-        if (result == GL_NO_ERROR) {
-            return;
-        }
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error clearing buffers: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    void Enable(GLenum cap) {
-        MG_Util::Debug::LogD("glEnable, cap: %s", MG_Util::Debug::GLEnumToString(cap));
-        GLenum result = MG_State::glEnable(cap);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error enabling capability: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void Disable(GLenum cap) {
-        MG_Util::Debug::LogD("glDisable, cap: %s", MG_Util::Debug::GLEnumToString(cap));
-        GLenum result = MG_State::glDisable(cap);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error disabling capability: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void BlendFunc(GLenum sfactor, GLenum dfactor) {
-        MG_Util::Debug::LogD("glBlendFunc, sfactor: %s, dfactor: %s",
-                             MG_Util::Debug::GLEnumToString(sfactor),
-                             MG_Util::Debug::GLEnumToString(dfactor));
-        GLenum result = MG_State::glBlendFunc(sfactor, dfactor);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error setting blend func: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void BlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha) {
-        MG_Util::Debug::LogD("glBlendFuncSeparate, srcRGB: %s, dstRGB: %s, srcAlpha: %s, dstAlpha: %s",
-                             MG_Util::Debug::GLEnumToString(srcRGB),
-                             MG_Util::Debug::GLEnumToString(dstRGB),
-                             MG_Util::Debug::GLEnumToString(srcAlpha),
-                             MG_Util::Debug::GLEnumToString(dstAlpha));
-        GLenum result = MG_State::glBlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error setting separate blend func: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void ClearColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) {
-        MG_Util::Debug::LogD("glClearColor, rgba: [%.2f, %.2f, %.2f, %.2f]", red, green, blue, alpha);
-        GLenum result = MG_State::glClearColor(red, green, blue, alpha);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error setting clear color: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void ClearDepth(GLdouble depth) {
-        MG_Util::Debug::LogD("glClearDepth, depth: %.3f", depth);
-        GLenum result = MG_State::glClearDepth(depth);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error setting clear depth: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void ColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha) {
-        MG_Util::Debug::LogD("glColorMask, rgba: [%d, %d, %d, %d]", red, green, blue, alpha);
-        GLenum result = MG_State::glColorMask(red, green, blue, alpha);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error setting color mask: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void DepthFunc(GLenum func) {
-        MG_Util::Debug::LogD("glDepthFunc, func: %s", MG_Util::Debug::GLEnumToString(func));
-        GLenum result = MG_State::glDepthFunc(func);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error setting depth func: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void DepthMask(GLboolean flag) {
-        MG_Util::Debug::LogD("glDepthMask, flag: %d", flag);
-        GLenum result = MG_State::glDepthMask(flag);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error setting depth mask: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void Viewport(GLint x, GLint y, GLsizei width, GLsizei height) {
-        MG_Util::Debug::LogD("glViewport, x: %d, y: %d, width: %d, height: %d",
-                             x, y, width, height);
-        GLenum result = MG_State::glViewport(x, y, width, height);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error setting viewport: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void PixelStorei(GLenum pname, GLint param) {
-        MG_Util::Debug::LogD("glPixelStorei, pname: %d, param: %d", pname, param);
-        GLenum result = MG_State::SetPixelStoreInt(pname,param);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }   
-}

MG/MG_GL/Implementations/GL/Common/GL_Common.h

@@ -1,25 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_GL_COMMON_H
-#define MOBILEGL_GL_COMMON_H
-
-#include "../../../../Includes.h"
-
-namespace MG_GL::GL {
-    void ClearDepth(GLdouble depth);
-    void ClearColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
-    void Clear(GLbitfield mask);
-    void PixelStorei(GLenum pname, GLint param);
-    void Enable(GLenum cap);
-    void Disable(GLenum cap);
-    void BlendFunc(GLenum sfactor, GLenum dfactor);
-    void BlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha);
-    void ColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
-    void DepthFunc(GLenum func);
-    void DepthMask(GLboolean flag);
-    void Viewport(GLint x, GLint y, GLsizei width, GLsizei height);
-}
-
-#endif //MOBILEGL_GL_COMMON_H

MG/MG_GL/Implementations/GL/Drawing/GL_Drawing.cpp

@@ -1,31 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "GL_Drawing.h"
-
-namespace MG_GL::GL {
-    void DrawElements(GLenum mode, GLsizei count, GLenum type, const void *indices) {
-        // TODO
-    }
-    
-    void DrawArrays(GLenum mode, GLint first, GLsizei count) {
-        // TODO
-    }
-    
-    void DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, GLint basevertex) {
-        // TODO
-    }
-
-    void MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type, const GLvoid *const *indices, GLsizei drawcount) {
-        // TODO
-    }
-    
-    void MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count, GLenum type, const GLvoid *const *indices, GLsizei drawcount, const GLint *basevertex) {
-        // TODO
-    }
-
-    void DrawBuffer(GLenum buf) {
-        // TODO
-    }
-}

MG/MG_GL/Implementations/GL/Drawing/GL_Drawing.h

@@ -1,18 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_GL_DRAWING_H
-#define MOBILEGL_GL_DRAWING_H
-#include "../../../../Includes.h"
-
-namespace MG_GL::GL {
-    void DrawElements(GLenum mode, GLsizei count, GLenum type, const void *indices);
-    void DrawArrays(GLenum mode, GLint first, GLsizei count);
-    void DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices, GLint basevertex);
-    void MultiDrawElements(GLenum mode, const GLsizei *count, GLenum type, const GLvoid *const *indices, GLsizei drawcount);
-    void MultiDrawElementsBaseVertex(GLenum mode, const GLsizei *count, GLenum type, const GLvoid *const *indices, GLsizei drawcount, const GLint *basevertex);
-    void DrawBuffer(GLenum buf);
-}
-
-#endif //MOBILEGL_GL_DRAWING_H

MG/MG_GL/Implementations/GL/Framebuffer/GL_Framebuffer.cpp

@@ -1,73 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "GL_Framebuffer.h"
-
-namespace MG_GL::GL {
-    void GenFramebuffers(GLsizei n, GLuint* framebuffers) {
-        MG_Util::Debug::LogD("glGenFramebuffers, n: %d, framebuffers: %p", n, framebuffers);
-        GLenum result = MG_State::CreateFramebuffers(n, framebuffers);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Framebuffer generation failed: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void DeleteFramebuffers(GLsizei n, const GLuint* framebuffers) {
-        MG_Util::Debug::LogD("glDeleteFramebuffers, n: %d, framebuffers: %p", n, framebuffers);
-        for (GLsizei i = 0; i < n; ++i) {
-            GLenum result = MG_State::DeleteFramebuffer(framebuffers[i]);
-            if (result != GL_NO_ERROR) {
-                MG_State::SetError(result);
-                MG_Util::Debug::LogE("Failed to delete framebuffer %u: %s",
-                                     framebuffers[i], MG_Util::Debug::GLEnumToString(result));
-            }
-        }
-    }
-
-    void BindFramebuffer(GLenum target, GLuint framebuffer) {
-        MG_Util::Debug::LogD("glBindFramebuffer, target: %s, fb: %u",
-                             MG_Util::Debug::GLEnumToString(target), framebuffer);
-        GLenum result = MG_State::BindFramebuffer(target, framebuffer);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Framebuffer bind error: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void FramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget,
-                              GLuint texture, GLint level) {
-        MG_Util::Debug::LogD("glFramebufferTexture2D, target: %s, attach: %s, textarget: %s, tex: %u, level: %d",
-                             MG_Util::Debug::GLEnumToString(target),
-                             MG_Util::Debug::GLEnumToString(attachment),
-                             MG_Util::Debug::GLEnumToString(textarget),
-                             texture, level);
-
-        GLenum result = MG_State::AttachTexture2DToFramebuffer(
-                target, attachment, textarget, texture, level
-        );
-
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Texture attachment failed: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    GLenum CheckFramebufferStatus(GLenum target) {
-        MG_Util::Debug::LogD("glCheckFramebufferStatus, target: %s",
-                             MG_Util::Debug::GLEnumToString(target));
-        GLenum result = MG_State::ValidateFramebufferCompleteness(target);
-        if (result >= GL_FRAMEBUFFER_COMPLETE) {
-            MG_Util::Debug::LogD("Framebuffer status: %s",
-                                 MG_Util::Debug::GLEnumToString(result));
-            return result;
-        }
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Framebuffer incomplete: %s",
-                             MG_Util::Debug::GLEnumToString(result));
-        return result;
-    }
-
-    void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
-                         GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter) {
-        // TODO
-    }
-}

MG/MG_GL/Implementations/GL/Framebuffer/GL_Framebuffer.h

@@ -1,19 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_GL_FRAMEBUFFER_H
-#define MOBILEGL_GL_FRAMEBUFFER_H
-
-#include "../../../../Includes.h"
-
-namespace MG_GL::GL {
-    void GenFramebuffers(GLsizei n, GLuint* framebuffers);
-    void DeleteFramebuffers(GLsizei n, const GLuint* framebuffers);
-    void BindFramebuffer(GLenum target, GLuint framebuffer);
-    void FramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
-    GLenum CheckFramebufferStatus(GLenum target);
-    void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
-}
-
-#endif //MOBILEGL_GL_FRAMEBUFFER_H

MG/MG_GL/Implementations/GL/GLFuncsDefinitions/GLFuncsDefinitions.h

@@ -1,10 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_GL_FUNCS_DEFINITIONS_H
-#define MOBILEGL_GL_FUNCS_DEFINITIONS_H
-
-#include "../../../../Includes.h"
-
-#endif //MOBILEGL_GL_FUNCS_DEFINITIONS_H

MG/MG_GL/Implementations/GL/Getter/BackendInfo.cpp

@@ -1,93 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "BackendInfo.h"
-
-namespace MG_GL::Getter {
-    const std::string GetBackendName() {
-#if BACKEND_TYPE == BACKEND_VULKAN
-        return "Vulkan";
-#elif BACKEND_TYPE == BACKEND_METAL
-        return "Metal";
-#elif BACKEND_TYPE == BACKEND_GLES
-        return "OpenGL ES";
-#else
-        return "<Unknown Backend>";
-#endif
-    }
-
-    const std::string GetMGName() {
-#if BACKEND_TYPE == BACKEND_VULKAN
-        return "MobileGluvk";
-#elif BACKEND_TYPE == BACKEND_METAL
-        return "MobileGlumtl";
-#elif BACKEND_TYPE == BACKEND_GLES
-        return "MobileGlues";
-#else
-        return "<Unknown MobileGL Version>";
-#endif
-    }
-
-    void LogMGInfo() {
-        std::string MGName = MG_GL::Getter::GetMGName() + " (MobileGL Core)";
-
-        std::string MGVersion = std::to_string(MG_Global::MG::VersionMajor) + "."
-                                +  std::to_string(MG_Global::MG::VersionMinor) + "."
-                                +  std::to_string(MG_Global::MG::VersionRevision);
-        if (MG_Global::MG::VersionPatch != 0)
-            MGVersion += "." + std::to_string(MG_Global::MG::VersionPatch);
-        MGVersion += MG_Global::MG::VersionSuffix;
-
-        std::string GLVersion = std::to_string(MG_Global::GL::GLVersionMajor) + "."
-                                +  std::to_string(MG_Global::GL::GLVersionMinor) + "."
-                                +  std::to_string(MG_Global::GL::GLVersionRevision);
-
-        std::string backendName = MG_GL::Getter::GetBackendName();
-        
-        std::string backendVersion;
-#if BACKEND_TYPE == BACKEND_VULKAN
-        VkApplicationInfo appInfo = {};
-        appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
-        appInfo.pApplicationName = "Vulkan Version Query";
-        appInfo.applicationVersion = VK_MAKE_VERSION(1, 0, 0);
-        appInfo.pEngineName = "No Engine";
-        appInfo.engineVersion = VK_MAKE_VERSION(1, 0, 0);
-        appInfo.apiVersion = VK_API_VERSION_1_0;
-        VkInstanceCreateInfo createInfo = {};
-        createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
-        createInfo.pApplicationInfo = &appInfo;
-        VkInstance instance;
-        if (vkCreateInstance(&createInfo, nullptr, &instance) != VK_SUCCESS) {
-            throw std::runtime_error("Failed to create Vulkan instance!");
-        }
-        uint32_t deviceCount = 0;
-        vkEnumeratePhysicalDevices(instance, &deviceCount, nullptr);
-        if (deviceCount == 0) {
-            throw std::runtime_error("No Vulkan devices found!");
-        }
-        VkPhysicalDevice physicalDevice;
-        vkEnumeratePhysicalDevices(instance, &deviceCount, &physicalDevice);
-        VkPhysicalDeviceProperties deviceProperties;
-        vkGetPhysicalDeviceProperties(physicalDevice, &deviceProperties);
-        uint32_t major = VK_VERSION_MAJOR(deviceProperties.apiVersion);
-        uint32_t minor = VK_VERSION_MINOR(deviceProperties.apiVersion);
-        uint32_t patch = VK_VERSION_PATCH(deviceProperties.apiVersion);
-        vkDestroyInstance(instance, nullptr);
-        
-        backendVersion = "Vulkan " + std::to_string(major) + "." + 
-                std::to_string(minor)+"." + std::to_string(patch);
-#elif BACKEND_TYPE == BACKEND_GLES
-        backendVersion = std::string((const char*)::GLES::glGetString(GL_VERSION));
-#else
-        backendVersion = "<Unknown Backend>";
-#endif
-
-        MG_Util::Debug::LogI("MobileGL Renderer Info:");
-        MG_Util::Debug::LogI("----%s:", MGName.c_str());
-        MG_Util::Debug::LogI("--------MobileGL Version: %s", MGVersion.c_str());
-        MG_Util::Debug::LogI("--------Target OpenGL Implementation Version: %s", GLVersion.c_str());
-        MG_Util::Debug::LogI("--------Backend: %s", backendName.c_str());
-        MG_Util::Debug::LogI("--------Backend Version: %s", backendVersion.c_str());
-    }
-}

MG/MG_GL/Implementations/GL/Getter/BackendInfo.h

@@ -1,16 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_BACKENDINFO_H
-#define MOBILEGL_BACKENDINFO_H
-
-#include "../../../../Includes.h"
-
-namespace MG_GL::Getter {
-    const std::string GetBackendName();
-    const std::string GetMGName();
-    void LogMGInfo();
-}
-
-#endif //MOBILEGL_BACKENDINFO_H

MG/MG_GL/Implementations/GL/Getter/GL_Getter.cpp

@@ -1,320 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "GL_Getter.h"
-
-namespace MG_GL::GL {
-    static std::string rendererString;
-    static bool loggedMGInfo;
-    const GLubyte* GetString(GLenum name) {
-        if (!loggedMGInfo) {
-            loggedMGInfo = true;
-            MG_GL::Getter::LogMGInfo();
-        }
-        MG_Util::Debug::LogD("glGetString, name: %s", MG_Util::Debug::GLEnumToString(name));
-        switch (name) {
-            case GL_VENDOR: 
-                return (const GLubyte *)"MobileGL-Dev";
-            case GL_VERSION: {
-                static std::string versionStr;
-                if (versionStr.empty()) {
-                    versionStr = std::to_string(MG_Global::GL::GLVersionMajor) + "."
-                            +  std::to_string(MG_Global::GL::GLVersionMinor) + "."
-                            +  std::to_string(MG_Global::GL::GLVersionRevision) 
-                            + " "+ MG_GL::Getter::GetMGName() +
-                            ", MobileGL Core, " + MG_GL::Getter::GetBackendName() + " Backend, Version "
-                            + std::to_string(MG_Global::MG::VersionMajor) + "."
-                            + std::to_string(MG_Global::MG::VersionMinor) + "."
-                            + std::to_string(MG_Global::MG::VersionRevision);
-                    if (MG_Global::MG::VersionPatch != 0)
-                        versionStr += "." + std::to_string(MG_Global::MG::VersionPatch);
-                    versionStr += MG_Global::MG::VersionSuffix;
-                }
-                return (const GLubyte *)versionStr.c_str();
-            }
-
-            case GL_RENDERER:
-            {
-                /*
-                if (rendererString == std::string("")) {
-                    const char* gpuName = getGpuName();
-                    const char* glesName = getGLESName();
-                    rendererString = std::string(gpuName) + " | " + std::string(glesName);
-                }
-                return (const GLubyte *)rendererString.c_str();
-                 */
-                return (const GLubyte *)(MG_GL::Getter::GetMGName() + " (MobileGL Core) Renderer").c_str();
-            }
-            case GL_SHADING_LANGUAGE_VERSION:
-                return (const GLubyte *) "4.50 MobileGL with glslang";
-            case GL_EXTENSIONS:
-                return (const GLubyte *) "OpenGL11 "
-                                         "OpenGL12 "
-                                         "OpenGL13 "
-                                         "OpenGL14 "
-                                         "OpenGL15 "
-                                         "OpenGL20 "
-                                         "OpenGL21 "
-                                         "OpenGL30 ";
-            default:
-                return (const GLubyte *) "Unknown enum";
-        }
-    }
-
-    const GLubyte* GetStringi(GLenum name, GLuint index) {
-        MG_Util::Debug::LogD("glGetStringi, name: %s, index: %d", MG_Util::Debug::GLEnumToString(name), index);
-        if (name != GL_EXTENSIONS)
-            return (const GLubyte*)"";
-        typedef struct {
-            GLenum name;
-            const char** parts;
-            GLuint count;
-        } StringCache;
-        static StringCache caches[] = {
-                {GL_EXTENSIONS, nullptr, 0},
-        };
-        static int initialized = 0;
-        if (!initialized) {
-            for (auto & cache : caches) {
-                GLenum target = cache.name;
-                const GLubyte* str = nullptr;
-                const char* delimiter = " ";
-                str = GetString(GL_EXTENSIONS);
-                
-                char* copy = strdup((const char*)str);
-                char* token = strtok(copy, delimiter);
-                while (token) {
-                    cache.parts = (const char**)realloc(cache.parts, (cache.count + 1) * sizeof(char*));
-                    cache.parts[cache.count++] = strdup(token);
-                    token = strtok(nullptr, delimiter);
-                }
-                free(copy);
-            }
-            initialized = 1;
-        }
-
-        for (auto & cache : caches) {
-            if (cache.name == name) {
-                if (index >= cache.count) {
-                    return nullptr;
-                }
-                return (const GLubyte*)cache.parts[index];
-            }
-        }
-
-        return nullptr;
-    }
-
-    GLenum GetError() {
-        GLenum error = MG_State::GetError();
-        MG_Util::Debug::LogD("glGetError -> %s", MG_Util::Debug::GLEnumToString(error));
-        return error;
-    }
-
-    void GetIntegerv(GLenum pname, GLint *params) {
-        MG_Util::Debug::LogD("glGetIntegerv, pname: %s", MG_Util::Debug::GLEnumToString(pname));
-        if (!params) {
-            MG_State::SetError(GL_INVALID_VALUE);
-            return;
-        }
-
-        switch (pname) {
-            // General
-            case GL_CONTEXT_PROFILE_MASK:
-                params[0] = GL_CONTEXT_CORE_PROFILE_BIT;
-                break;
-            case GL_NUM_EXTENSIONS:
-                static GLint num_extensions = -1;
-                if (num_extensions == -1) {
-                    const GLubyte* ext_str = MG_GL::GL::GetString(GL_EXTENSIONS);
-                    char *copy = strdup((const char *) ext_str);
-                    char *token = strtok(copy, " ");
-                    num_extensions = 0;
-                    while (token) {
-                        num_extensions++;
-                        token = strtok(nullptr, " ");
-                    }
-                    free(copy);
-                }
-                params[0] = num_extensions;
-                break;
-            case GL_MAJOR_VERSION:
-                params[0] = MG_Global::GL::GLVersionMajor;
-                break;
-            case GL_MINOR_VERSION:
-                params[0] = MG_Global::GL::GLVersionMinor;
-                break;
-            
-            // Viewport and scissor
-            case GL_VIEWPORT:
-                memcpy(params, MG_State_T::commonState->viewport, 4 * sizeof(GLint));
-                break;
-            case GL_SCISSOR_BOX:
-                // TODO: memcpy(params, MG_State_T::commonState->scissorBox, 4 * sizeof(GLint));
-                break;
-            case GL_MAX_VIEWPORT_DIMS: {
-                static const GLint maxDims[2] = {16384, 16384};
-                memcpy(params, maxDims, sizeof(maxDims));
-                break;
-            }
-
-            // Buffer bindings
-            case GL_ARRAY_BUFFER_BINDING:
-                params[0] = static_cast<GLint>(MG_State_T::bufferState->GetCurrentBinding(GL_ARRAY_BUFFER));
-                break;
-
-            case GL_ELEMENT_ARRAY_BUFFER_BINDING:
-                params[0] = static_cast<GLint>(MG_State_T::vertexArrayState->GetBoundElementBuffer());
-                break;
-            case GL_DRAW_FRAMEBUFFER_BINDING:
-                params[0] = static_cast<GLint>(MG_State_T::framebufferState->currentBindings_[GL_DRAW_FRAMEBUFFER]);
-                break;
-            case GL_READ_FRAMEBUFFER_BINDING:
-                params[0] = static_cast<GLint>(MG_State_T::framebufferState->currentBindings_[GL_READ_FRAMEBUFFER]);
-                break;
-            case GL_RENDERBUFFER_BINDING:
-                // TODO: params[0] = static_cast<GLint>(MG_State_T::framebufferState->currentRenderbuffer_);
-                break;
-
-            // Program state
-            case GL_CURRENT_PROGRAM:
-                params[0] = static_cast<GLint>(MG_State_T::programState->currentProgram_);
-                break;
-            case GL_MAX_VERTEX_ATTRIBS:
-                // TODO: Check the real value
-                params[0] = 64;
-                break;
-                
-            // Texture state
-            case GL_TEXTURE_BINDING_2D: {
-                GLuint unit = MG_State_T::textureState->activeTextureUnit_;
-                auto& textures = MG_State_T::textureState->textureUnits_[unit].boundTextures;
-                params[0] = textures.count(GL_TEXTURE_2D) ? static_cast<GLint>(textures[GL_TEXTURE_2D]) : 0;
-                break;
-            }
-            case GL_ACTIVE_TEXTURE:
-                params[0] = GL_TEXTURE0 + MG_State_T::textureState->activeTextureUnit_;
-                break;
-            case GL_MAX_TEXTURE_SIZE:
-                params[0] = 8192;
-                break;
-
-            // Blend state
-            case GL_BLEND_SRC_RGB:
-                params[0] = static_cast<GLint>(MG_State_T::commonState->blendSrcRGB);
-                break;
-            case GL_BLEND_DST_RGB:
-                params[0] = static_cast<GLint>(MG_State_T::commonState->blendDstRGB);
-                break;
-            case GL_BLEND_SRC_ALPHA:
-                params[0] = static_cast<GLint>(MG_State_T::commonState->blendSrcAlpha);
-                break;
-            case GL_BLEND_DST_ALPHA:
-                params[0] = static_cast<GLint>(MG_State_T::commonState->blendDstAlpha);
-                break;
-                
-            // Depth and stencil
-            case GL_DEPTH_FUNC:
-                params[0] = static_cast<GLint>(MG_State_T::commonState->depthFunc);
-                break;
-            case GL_DEPTH_WRITEMASK:
-                params[0] = static_cast<GLint>(MG_State_T::commonState->depthMask);
-                break;
-            case GL_STENCIL_REF:
-                // TODO: params[0] = MG_State_T::commonState->stencilRef;
-                break;
-
-            // Capability enables
-            case GL_BLEND:
-                params[0] = MG_State_T::commonState->capabilities[GL_BLEND] ? GL_TRUE : GL_FALSE;
-                break;
-            case GL_DEPTH_TEST:
-                params[0] = MG_State_T::commonState->capabilities[GL_DEPTH_TEST] ? GL_TRUE : GL_FALSE;
-                break;
-            case GL_SCISSOR_TEST:
-                params[0] = MG_State_T::commonState->capabilities[GL_SCISSOR_TEST] ? GL_TRUE : GL_FALSE;
-                break;
-
-            // Pixel operations
-            case GL_PACK_ALIGNMENT:
-                params[0] = MG_State_T::commonState->QueryPixelStoreInt(GL_PACK_ALIGNMENT);
-                break;
-            case GL_UNPACK_ALIGNMENT:
-                params[0] = MG_State_T::commonState->QueryPixelStoreInt(GL_UNPACK_ALIGNMENT);
-                break;
-
-            // Hardware limits, TODO: Check the real values
-            case GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS:
-                params[0] = 32;
-                break;
-            case GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS:
-                params[0] = 32;
-                break;
-            case GL_MAX_TEXTURE_IMAGE_UNITS:
-                params[0] = 32;
-                break;
-            case GL_MAX_RENDERBUFFER_SIZE:
-                params[0] = 65537;
-                break;
-            case GL_MAX_DRAW_BUFFERS:
-                params[0] = 32;
-                break;
-            case GL_MAX_COLOR_ATTACHMENTS:
-                params[0] = 32;
-                break;
-
-            // Color state
-            case GL_COLOR_CLEAR_VALUE: {
-                const auto& c = MG_State_T::commonState->clearColor;
-                params[0] = static_cast<GLint>(c[0] * 0x7FFF);
-                params[1] = static_cast<GLint>(c[1] * 0x7FFF);
-                params[2] = static_cast<GLint>(c[2] * 0x7FFF);
-                params[3] = static_cast<GLint>(c[3] * 0x7FFF);
-                break;
-            }
-            case GL_COLOR_WRITEMASK:
-                params[0] = MG_State_T::commonState->colorMask[0];
-                params[1] = MG_State_T::commonState->colorMask[1];
-                params[2] = MG_State_T::commonState->colorMask[2];
-                params[3] = MG_State_T::commonState->colorMask[3];
-                break;
-
-            // Stencil operations
-            case GL_STENCIL_CLEAR_VALUE:
-                // TODO: params[0] = MG_State_T::commonState->stencilClearValue;
-                break;
-            case GL_STENCIL_BITS:
-                // TODO: Check the real value
-                params[0] = 8;
-                break;
-
-           // Implementation limits
-            case GL_SUBPIXEL_BITS:
-                // TODO: Check the real value
-                params[0] = 4;
-                break;
-            case GL_NUM_COMPRESSED_TEXTURE_FORMATS:
-                // TODO: params[0] = static_cast<GLint>(MG_State_T::textureState->compressedFormats_.size());
-                break;
-            case GL_COMPRESSED_TEXTURE_FORMATS:
-                // TODO: Implement GL_COMPRESSED_TEXTURE_FORMATS
-                break;
-
-           // Polygon state
-            case GL_POLYGON_OFFSET_FACTOR:
-                // TODO: params[0] = static_cast<GLint>(MG_State_T::commonState->polygonOffsetFactor);
-                break;
-            case GL_POLYGON_OFFSET_UNITS:
-                // TODO: params[0] = static_cast<GLint>(MG_State_T::commonState->polygonOffsetUnits);
-                break;
-
-            // Others...
-            default:
-                MG_Util::Debug::LogE("glGetIntegerv: Invalid enum %s (0x%X)", MG_Util::Debug::GLEnumToString(pname), pname);
-                MG_State::SetError(GL_INVALID_ENUM);
-                break;
-        }
-    }
-
-}

MG/MG_GL/Implementations/GL/Getter/GL_Getter.h

@@ -1,17 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_GL_GETTER_H
-#define MOBILEGL_GL_GETTER_H
-
-#include "../../../../Includes.h"
-
-namespace MG_GL::GL {
-    const GLubyte* GetString(GLenum name);
-    const GLubyte* GetStringi(GLenum name, GLuint index);
-    GLenum GetError();
-    void GetIntegerv(GLenum pname, GLint *params);
-}
-
-#endif //MOBILEGL_GL_GETTER_H

MG/MG_GL/Implementations/GL/Program/GL_Program.cpp

@@ -1,298 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "GL_Program.h"
-
-namespace MG_GL::GL {
-    GLuint CreateShader(GLenum type) {
-        MG_Util::Debug::LogD("glCreateShader, type: %s", MG_Util::Debug::GLEnumToString(type));
-        GLuint shader;
-        GLenum result = MG_State::CreateShader(type, &shader);
-        if (result == GL_NO_ERROR) {
-            MG_Util::Debug::LogD("Created shader ID: %u", shader);
-            return shader;
-        }
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error creating shader: %s", MG_Util::Debug::GLEnumToString(result));
-        return 0;
-    }
-
-    GLuint CreateProgram() {
-        MG_Util::Debug::LogD("glCreateProgram");
-        GLuint program;
-        GLenum result = MG_State::CreateProgram(&program);
-        if (result == GL_NO_ERROR) {
-            MG_Util::Debug::LogD("Created program ID: %u", program);
-            return program;
-        }
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error creating program: %s", MG_Util::Debug::GLEnumToString(result));
-        return 0;
-    }
-    
-    void DeleteShader(GLuint shader) {
-        MG_Util::Debug::LogD("glDeleteShader, shader: %u", shader);
-        GLenum result = MG_State::DeleteShader(shader);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error deleting shader: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    void DeleteProgram(GLuint program) {
-        MG_Util::Debug::LogD("glDeleteProgram, program: %u", program);
-        GLenum result = MG_State::DeleteProgram(program);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error deleting program: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    void AttachShader(GLuint program, GLuint shader) {
-        MG_Util::Debug::LogD("glAttachShader, program: %u, shader: %u", program, shader);
-        GLenum result = MG_State::LinkShaderToProgram(program, shader);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error attaching shader: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    void ShaderSource(GLuint shader, GLsizei count, const GLchar *const*string, const GLint* length) {
-        MG_Util::Debug::LogD("glShaderSource, shader: %u, count: %d", shader, count);
-        GLenum result = MG_State::UploadShaderSource(shader, count, (const GLchar **)string, length);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error setting shader source: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    void CompileShader(GLuint shader) {
-        MG_Util::Debug::LogD("glCompileShader, shader: %u", shader);
-        GLenum result = MG_State::BuildShaderStage(shader);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error compiling shader: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    void LinkProgram(GLuint program) {
-        MG_Util::Debug::LogD("glLinkProgram, program: %u", program);
-        GLenum result = MG_State::FinalizeProgramPipeline(program);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error linking program: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    void UseProgram(GLuint program) {
-        MG_Util::Debug::LogD("glUseProgram, program: %u", program);
-        GLenum result = MG_State::ActivateRenderProgram(program);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error using program: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    void BindAttribLocation(GLuint program, GLuint index, const GLchar* name) {
-        MG_Util::Debug::LogD("glBindAttribLocation, program: %u, index: %u, name: %s", program, index, name);
-        GLenum result = MG_State::DefineProgramAttributeBinding(program, index, name);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error binding attribute: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    GLint GetAttribLocation(GLuint program, const GLchar* name) {
-        MG_Util::Debug::LogD("glGetAttribLocation, program: %u, name: %s", program, name);
-        GLint location = MG_State::QueryProgramAttributeBinding(program, name);
-        if (location != -1) return location;
-        MG_State::SetError(GL_INVALID_OPERATION);
-        MG_Util::Debug::LogE("Attribute not found: %s", name);
-        return -1;
-    }
-    
-    GLint GetUniformLocation(GLuint program, const GLchar* name) {
-        MG_Util::Debug::LogD("glGetUniformLocation, program: %u, name: %s", program, name);
-        GLint location = MG_State::QueryProgramUniformLocation(program, name);
-        if (location != -1) return location;
-        MG_State::SetError(GL_INVALID_OPERATION);
-        MG_Util::Debug::LogE("Uniform not found: %s", name);
-        return -1;
-    }
-    
-    void GetProgramiv(GLuint program, GLenum pname, GLint* params) {
-        MG_Util::Debug::LogD("glGetProgramiv, program: %u, pname: %s",
-                             program, MG_Util::Debug::GLEnumToString(pname));
-        GLenum result = MG_State::QueryProgramStateIntVector(program, pname, params);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error getting program param: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-    
-    void GetShaderiv(GLuint shader, GLenum pname, GLint* params) {
-        MG_Util::Debug::LogD("glGetShaderiv, shader: %u, pname: %s",
-                             shader, MG_Util::Debug::GLEnumToString(pname));
-        GLenum result = MG_State::QueryShaderStateIntVector(shader, pname, params);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error getting shader param: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void Uniform1f(GLint location, GLfloat v0) {
-        MG_Util::Debug::LogD("glUniform1f, location: %d, v0: %f", location, v0);
-        MG_State::UpdateProgramUniformFloat1(location, v0);
-    }
-
-    void Uniform2f(GLint location, GLfloat v0, GLfloat v1) {
-        MG_Util::Debug::LogD("glUniform2f, location: %d, v0: %f, v1: %f", location, v0, v1);
-        MG_State::UpdateProgramUniformFloat2(location, v0, v1);
-    }
-
-    void Uniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2) {
-        MG_Util::Debug::LogD("glUniform3f, location: %d, v0: %f, v1: %f, v2: %f", location, v0, v1, v2);
-        MG_State::UpdateProgramUniformFloat3(location, v0, v1, v2);
-    }
-
-    void Uniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3) {
-        MG_Util::Debug::LogD("glUniform4f, location: %d, v0: %f, v1: %f, v2: %f, v3: %f", location, v0, v1, v2, v3);
-        MG_State::UpdateProgramUniformFloat4(location, v0, v1, v2, v3);
-    }
-
-    void Uniform1fv(GLint location, GLsizei count, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniform1fv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformFloatVector1(location, count, value);
-    }
-
-    void Uniform2fv(GLint location, GLsizei count, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniform2fv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformFloatVector2(location, count, value);
-    }
-
-    void Uniform3fv(GLint location, GLsizei count, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniform3fv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformFloatVector3(location, count, value);
-    }
-
-    void Uniform4fv(GLint location, GLsizei count, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniform4fv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformFloatVector4(location, count, value);
-    }
-
-    void Uniform1i(GLint location, GLint v0) {
-        MG_Util::Debug::LogD("glUniform1i, location: %d, v0: %d", location, v0);
-        MG_State::UpdateProgramUniformInt1(location, v0);
-    }
-
-    void Uniform2i(GLint location, GLint v0, GLint v1) {
-        MG_Util::Debug::LogD("glUniform2i, location: %d, v0: %d, v1: %d", location, v0, v1);
-        MG_State::UpdateProgramUniformInt2(location, v0, v1);
-    }
-
-    void Uniform3i(GLint location, GLint v0, GLint v1, GLint v2) {
-        MG_Util::Debug::LogD("glUniform3i, location: %d, v0: %d, v1: %d, v2: %d", location, v0, v1, v2);
-        MG_State::UpdateProgramUniformInt3(location, v0, v1, v2);
-    }
-
-    void Uniform4i(GLint location, GLint v0, GLint v1, GLint v2, GLint v3) {
-        MG_Util::Debug::LogD("glUniform4i, location: %d, v0: %d, v1: %d, v2: %d, v3: %d", location, v0, v1, v2, v3);
-        MG_State::UpdateProgramUniformInt4(location, v0, v1, v2, v3);
-    }
-
-    void Uniform1iv(GLint location, GLsizei count, const GLint* value) {
-        MG_Util::Debug::LogD("glUniform1iv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformIntVector1(location, count, value);
-    }
-
-    void Uniform2iv(GLint location, GLsizei count, const GLint* value) {
-        MG_Util::Debug::LogD("glUniform2iv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformIntVector2(location, count, value);
-    }
-
-    void Uniform3iv(GLint location, GLsizei count, const GLint* value) {
-        MG_Util::Debug::LogD("glUniform3iv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformIntVector3(location, count, value);
-    }
-
-    void Uniform4iv(GLint location, GLsizei count, const GLint* value) {
-        MG_Util::Debug::LogD("glUniform4iv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformIntVector4(location, count, value);
-    }
-
-    void Uniform1ui(GLint location, GLuint v0) {
-        MG_Util::Debug::LogD("glUniform1ui, location: %d, v0: %u", location, v0);
-        MG_State::UpdateProgramUniformUInt1(location, v0);
-    }
-
-    void Uniform2ui(GLint location, GLuint v0, GLuint v1) {
-        MG_Util::Debug::LogD("glUniform2ui, location: %d, v0: %u, v1: %u", location, v0, v1);
-        MG_State::UpdateProgramUniformUInt2(location, v0, v1);
-    }
-
-    void Uniform3ui(GLint location, GLuint v0, GLuint v1, GLuint v2) {
-        MG_Util::Debug::LogD("glUniform3ui, location: %d, v0: %u, v1: %u, v2: %u", location, v0, v1, v2);
-        MG_State::UpdateProgramUniformUInt3(location, v0, v1, v2);
-    }
-
-    void Uniform4ui(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3) {
-        MG_Util::Debug::LogD("glUniform4ui, location: %d, v0: %u, v1: %u, v2: %u, v3: %u", location, v0, v1, v2, v3);
-        MG_State::UpdateProgramUniformUInt4(location, v0, v1, v2, v3);
-    }
-
-    void Uniform1uiv(GLint location, GLsizei count, const GLuint* value) {
-        MG_Util::Debug::LogD("glUniform1uiv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformUIntVector1(location, count, value);
-    }
-
-    void Uniform2uiv(GLint location, GLsizei count, const GLuint* value) {
-        MG_Util::Debug::LogD("glUniform2uiv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformUIntVector2(location, count, value);
-    }
-
-    void Uniform3uiv(GLint location, GLsizei count, const GLuint* value) {
-        MG_Util::Debug::LogD("glUniform3uiv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformUIntVector3(location, count, value);
-    }
-
-    void Uniform4uiv(GLint location, GLsizei count, const GLuint* value) {
-        MG_Util::Debug::LogD("glUniform4uiv, location: %d, count: %d", location, count);
-        MG_State::UpdateProgramUniformUIntVector4(location, count, value);
-    }
-
-    void UniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniformMatrix2fv, location: %d, count: %d, transpose: %d", location, count, transpose);
-        MG_State::UpdateProgramUniformMatrix2x2Vector(location, count, transpose, value);
-    }
-
-    void UniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniformMatrix3fv, location: %d, count: %d, transpose: %d", location, count, transpose);
-        MG_State::UpdateProgramUniformMatrix3x3Vector(location, count, transpose, value);
-    }
-
-    void UniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniformMatrix4fv, location: %d, count: %d, transpose: %d", location, count, transpose);
-        MG_State::UpdateProgramUniformMatrix4x4Vector(location, count, transpose, value);
-    }
-
-    void UniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniformMatrix2x3fv, location: %d, count: %d, transpose: %d", location, count, transpose);
-        MG_State::UpdateProgramUniformMatrix2x3Vector(location, count, transpose, value);
-    }
-
-    void UniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniformMatrix2x4fv, location: %d, count: %d, transpose: %d", location, count, transpose);
-        MG_State::UpdateProgramUniformMatrix2x4Vector(location, count, transpose, value);
-    }
-
-    void UniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniformMatrix3x2fv, location: %d, count: %d, transpose: %d", location, count, transpose);
-        MG_State::UpdateProgramUniformMatrix3x2Vector(location, count, transpose, value);
-    }
-
-    void UniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniformMatrix3x4fv, location: %d, count: %d, transpose: %d", location, count, transpose);
-        MG_State::UpdateProgramUniformMatrix3x4Vector(location, count, transpose, value);
-    }
-
-    void UniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniformMatrix4x2fv, location: %d, count: %d, transpose: %d", location, count, transpose);
-        MG_State::UpdateProgramUniformMatrix4x2Vector(location, count, transpose, value);
-    }
-
-    void UniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) {
-        MG_Util::Debug::LogD("glUniformMatrix4x3fv, location: %d, count: %d, transpose: %d", location, count, transpose);
-        MG_State::UpdateProgramUniformMatrix4x3Vector(location, count, transpose, value);
-    }
-}

MG/MG_GL/Implementations/GL/Program/GL_Program.h

@@ -1,60 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_GL_PROGRAM_H
-#define MOBILEGL_GL_PROGRAM_H
-
-#include "../../../../Includes.h"
-
-namespace MG_GL::GL {
-    GLuint CreateShader(GLenum type);
-    GLuint CreateProgram();
-    void DeleteShader(GLuint shader);
-    void DeleteProgram(GLuint program);
-    void AttachShader(GLuint program, GLuint shader);
-    void ShaderSource(GLuint shader, GLsizei count, const GLchar *const*string, const GLint* length);
-    void CompileShader(GLuint shader);
-    void LinkProgram(GLuint program);
-    void UseProgram(GLuint program);
-    void BindAttribLocation(GLuint program, GLuint index, const GLchar* name);
-    GLint GetAttribLocation(GLuint program, const GLchar* name);
-    GLint GetUniformLocation(GLuint program, const GLchar* name);
-    void GetProgramiv(GLuint program, GLenum pname, GLint* params);
-    void GetShaderiv(GLuint shader, GLenum pname, GLint* params);
-    void Uniform1f(GLint location, GLfloat v0);
-    void Uniform2f(GLint location, GLfloat v0, GLfloat v1);
-    void Uniform3f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2);
-    void Uniform4f(GLint location, GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
-    void Uniform1fv(GLint location, GLsizei count, const GLfloat* value);
-    void Uniform2fv(GLint location, GLsizei count, const GLfloat* value);
-    void Uniform3fv(GLint location, GLsizei count, const GLfloat* value);
-    void Uniform4fv(GLint location, GLsizei count, const GLfloat* value);
-    void Uniform1i(GLint location, GLint v0);
-    void Uniform2i(GLint location, GLint v0, GLint v1);
-    void Uniform3i(GLint location, GLint v0, GLint v1, GLint v2);
-    void Uniform4i(GLint location, GLint v0, GLint v1, GLint v2, GLint v3);
-    void Uniform1iv(GLint location, GLsizei count, const GLint* value);
-    void Uniform2iv(GLint location, GLsizei count, const GLint* value);
-    void Uniform3iv(GLint location, GLsizei count, const GLint* value);
-    void Uniform4iv(GLint location, GLsizei count, const GLint* value);
-    void Uniform1ui(GLint location, GLuint v0);
-    void Uniform2ui(GLint location, GLuint v0, GLuint v1);
-    void Uniform3ui(GLint location, GLuint v0, GLuint v1, GLuint v2);
-    void Uniform4ui(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3);
-    void Uniform1uiv(GLint location, GLsizei count, const GLuint* value);
-    void Uniform2uiv(GLint location, GLsizei count, const GLuint* value);
-    void Uniform3uiv(GLint location, GLsizei count, const GLuint* value);
-    void Uniform4uiv(GLint location, GLsizei count, const GLuint* value);
-    void UniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-    void UniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-    void UniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-    void UniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-    void UniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-    void UniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-    void UniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-    void UniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-    void UniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-}
-
-#endif //MOBILEGL_GL_PROGRAM_H

MG/MG_GL/Implementations/GL/Texture/GL_Texture.cpp

@@ -1,93 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "GL_Texture.h"
-
-namespace MG_GL::GL {
-    void ActiveTexture(GLenum texture) {
-        MG_Util::Debug::LogD("glActiveTexture, texture: %d", texture);
-        GLenum result = MG_State::BindTextureUnit(texture);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void BindTexture(GLenum target, GLuint texture) {
-        MG_Util::Debug::LogD("glBindTexture, target: %d, texture: %d", target, texture);
-        GLenum result = MG_State::BindTexture(target, texture);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void DeleteTextures(GLsizei n, const GLuint* textures) {
-        MG_Util::Debug::LogD("glDeleteTextures, n: %d, textures: %p", n, textures);
-        GLenum result = MG_State::DeleteTextures(n, textures);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void GenTextures(GLsizei n, GLuint* textures) {
-        MG_Util::Debug::LogD("glGenTextures, n: %d, textures: %p", n, textures);
-        GLenum result = MG_State::CreateTextures(n, textures);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void TexImage2D(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, 
-                    GLenum format, GLenum type, const void* data) {
-        MG_Util::Debug::LogD("glTexImage2D, target: %d, level: %d, internalFormat: %d, width: %d, height: %d, format: %d, type: %d, data: %p",
-                             target, level, internalFormat, width, height, format, type, data);
-        GLenum result = MG_State::UploadTexture2D(target, level, internalFormat, width, height, border, format, type, data);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void TexParameterf(GLenum target, GLenum pname, GLfloat param) {
-        MG_Util::Debug::LogD("glTexParameterf, target: %d, pname: %d, param: %f", target, pname, param);
-        GLenum result = MG_State::SetTexturePropertyFloat(target, pname, param);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void TexParameteri(GLenum target, GLenum pname, GLint param) {
-        MG_Util::Debug::LogD("glTexParameteri, target: %d, pname: %d, param: %d", target, pname, param);
-        GLenum result = MG_State::SetTexturePropertyInt(target, pname, param);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void TexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width,
-                       GLsizei height, GLenum format, GLenum type, const void* pixels) {
-        MG_Util::Debug::LogD("glTexSubImage2D, target: %d, level: %d, xoffset: %d, yoffset: %d, width: %d, height: %d, format: %d, type: %d, pixels: %p",
-                             target, level, xoffset, yoffset, width, height, format, type, pixels);
-        GLenum result = MG_State::UpdateTextureRegion2D(target, level, xoffset, yoffset, width, height, format, type, pixels);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void GetTexLevelParameteriv(GLenum target, GLint level, GLenum pname, GLint* params) {
-        MG_Util::Debug::LogD("glGetTexLevelParameteriv, target: %d, level: %d, pname: %d, params: %p",
-                             target, level, pname, params);
-        GLenum result = MG_State::QueryTextureLevelPropertyIntVector(target, level, pname, params);
-        if (result == GL_NO_ERROR)
-            return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-}

MG/MG_GL/Implementations/GL/Texture/GL_Texture.h

@@ -1,22 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_GL_TEXTURE_H
-#define MOBILEGL_GL_TEXTURE_H
-
-#include "../../../../Includes.h"
-
-namespace MG_GL::GL {
-    void ActiveTexture(GLenum texture);
-    void BindTexture(GLenum target, GLuint texture);
-    void DeleteTextures(GLsizei n, const GLuint* textures);
-    void GenTextures(GLsizei n, GLuint* textures);
-    void TexImage2D(GLenum target, GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void* data);
-    void TexParameterf(GLenum target, GLenum pname, GLfloat param);
-    void TexParameteri(GLenum target, GLenum pname, GLint param);
-    void TexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void* pixels);
-    void GetTexLevelParameteriv(GLenum target, GLint level, GLenum pname, GLint* params);
-}
-
-#endif //MOBILEGL_GL_TEXTURE_H

MG/MG_GL/Implementations/GL/VertexArray/GL_VertexArray.cpp

@@ -1,53 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "GL_VertexArray.h"
-
-namespace MG_GL::GL {
-    void GenVertexArrays(GLsizei n, GLuint* arrays) {
-        MG_Util::Debug::LogD("glGenVertexArrays, n: %d, arrays: %p", n, arrays);
-        GLenum result = MG_State::GenVertexArraysNames(n, arrays);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void BindVertexArray(GLuint array) {
-        MG_Util::Debug::LogD("glBindVertexArray, array: %u", array);
-        GLenum result = MG_State::BindVertexArray(array);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void EnableVertexAttribArray(GLuint index) {
-        MG_Util::Debug::LogD("glEnableVertexAttribArray, index: %u", index);
-        GLenum result = MG_State::EnableVertexAttribArray(index);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void VertexAttribPointer(GLuint index, GLint size, GLenum type,
-                             GLboolean normalized, GLsizei stride, const void* pointer) {
-        MG_Util::Debug::LogD("glVertexAttribPointer, index: %u, size: %d, type: %s, norm: %d, stride: %d, ptr: %p",
-                             index, size, MG_Util::Debug::GLEnumToString(type), normalized, stride, pointer);
-
-        GLenum result = MG_State::SetVertexAttributeLayout(index, size, type, normalized, stride, pointer);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-
-    void VertexAttribIPointer(GLuint index, GLint size, GLenum type,
-                              GLsizei stride, const void* pointer) {
-        MG_Util::Debug::LogD("glVertexAttribIPointer, index: %u, size: %d, type: %s, stride: %d, ptr: %p",
-                             index, size, MG_Util::Debug::GLEnumToString(type), stride, pointer);
-
-        GLenum result = MG_State::SetVertexAttributeLayoutInt(index, size, type, stride, pointer);
-        if (result == GL_NO_ERROR) return;
-        MG_State::SetError(result);
-        MG_Util::Debug::LogE("Error from MG State: %s", MG_Util::Debug::GLEnumToString(result));
-    }
-}

MG/MG_GL/Implementations/GL/VertexArray/GL_VertexArray.h

@@ -1,18 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_GL_VERTEXARRAY_H
-#define MOBILEGL_GL_VERTEXARRAY_H
-
-#include "../../../../Includes.h"
-
-namespace MG_GL::GL {
-    void GenVertexArrays(GLsizei n, GLuint* arrays);
-    void BindVertexArray(GLuint array);
-    void EnableVertexAttribArray(GLuint index);
-    void VertexAttribPointer(GLuint index, GLint size, GLenum type, GLboolean normalized, GLsizei stride, const void* pointer);
-    void VertexAttribIPointer(GLuint index, GLint size, GLenum type, GLsizei stride, const void* pointer);
-}
-
-#endif //MOBILEGL_GL_VERTEXARRAY_H

MG/MG_GL/Implementations/GLX/GLXFuncsDefinitions/GLXFuncsDefinitions.cpp

@@ -1,13 +0,0 @@
-//
-// Created by Swung 0x48 on 2025/6/20.
-//
-
-#include "GLXFuncsDefinitions.h"
-
-MG_EXPORT void* glXGetProcAddress(const char *name) {
-    return MG_GL::GLX::GetProcAddress(name);
-}
-
-MG_EXPORT void* glXGetProcAddressARB(const char *name) {
-    return MG_GL::GLX::GetProcAddressARB(name);
-}

MG/MG_GL/Implementations/GLX/GLXFuncsDefinitions/GLXFuncsDefinitions.h

@@ -1,10 +0,0 @@
-//
-// Created by Swung 0x48 on 2025/6/20.
-//
-
-#ifndef MOBILEGL_GLX_FUNCS_DEFINITIONS_H
-#define MOBILEGL_GLX_FUNCS_DEFINITIONS_H
-
-#include "../../../../Includes.h"
-
-#endif //MOBILEGL_GLX_FUNCS_DEFINITIONS_H

MG/MG_GL/Implementations/GLX/LookUp/LookUp.cpp

@@ -1,25 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#include "LookUp.h"
-
-#include "../../../../Includes.h"
-
-namespace MG_GL::GLX {
-    void* GetProcAddress(const char *name) {
-        MG_Util::Debug::LogD("glXGetProcAddress(\"%s\")", name);
-        void* proc = dlsym(RTLD_DEFAULT, (const char*)name);
-
-        if (!proc) {
-            MG_Util::Debug::LogW("Failed to get function: %s", (const char*)name);
-            return nullptr;
-        }
-
-        return proc;
-    }
-
-    void* GetProcAddressARB(const char *name) {
-        return GetProcAddress(name);
-    }
-}

MG/MG_GL/Implementations/GLX/LookUp/LookUp.h

@@ -1,12 +0,0 @@
-//
-// Created by BZLZHH on 2025/3/15.
-//
-
-#ifndef MOBILEGL_LOOKUP_H
-#define MOBILEGL_LOOKUP_H
-
-namespace MG_GL::GLX {
-    void* GetProcAddress(const char *name);
-    void* GetProcAddressARB(const char *name);
-}
-#endif //MOBILEGL_LOOKUP_H

MG/MG_GL/State/Buffer/BufferState.cpp

@@ -1,328 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/1.
-//
-
-// TODO: Add more gl error check for buffer state manager.
-
-#include "BufferState.h"
-
-GLenum BufferState::GenName(GLuint *buffer) {
-    MG_Util::Debug::LogD("MG_State: Buffer: GenName");
-    if (!buffer)
-        return GL_INVALID_VALUE;
-
-    GLuint id = 0;
-    if (freeId_.empty()) {
-        id = lastId_++;
-    } else {
-        id = freeId_.back();
-        freeId_.pop_back();
-    }
-
-    *buffer = id;
-    MG_Util::Debug::LogD("MG_State: Buffer: Gen new name %d", id);
-
-    return GL_NO_ERROR;
-}
-
-GLenum BufferState::GenNameN(GLsizei n, GLuint* buffers) {
-    MG_Util::Debug::LogD("MG_State: Buffer: GenNameN called with n=%d", n);
-    if (n < 0) return GL_INVALID_VALUE;
-
-    for (GLsizei i = 0; i < n; ++i) {
-        GLenum result = GenName(&buffers[i]);
-        if (result != GL_NO_ERROR) {
-            MG_Util::Debug::LogE("MG_State: Buffer: GenNameN failed with error 0x%x", result);
-            return result;
-        }
-    }
-    MG_Util::Debug::LogD("MG_State: Buffer: GenNameN created buffers successfully");
-    return GL_NO_ERROR;
-}
-
-GLenum BufferState::Create(GLuint buffer) {
-    MG_Util::Debug::LogD("MG_State: Buffer: Create called");
-    if (!buffer)
-        return GL_INVALID_VALUE;
-
-    if (ValidateAllocatedHandle(buffer))
-        return GL_INVALID_VALUE;
-
-    BufferObject& obj = buffers_[buffer];
-    MG_Util::Debug::LogD("MG_State: Buffer: Create created buffer %d", buffer);
-    obj.generated = true;
-    obj.dirty = true;
-
-    return GL_NO_ERROR;
-}
-
-GLenum BufferState::Bind(GLenum target, GLuint buffer) {
-    // We don't handle unallocated buffer names here, just plain bind
-    if (!IsValidTarget_(target)) return GL_INVALID_ENUM;
-    MG_Util::Debug::LogD("MG_State: Buffer: Bind called with target=%s, buffer=%u", MG_Util::Debug::GLEnumToString(target), buffer);
-    currentBindings_[target] = buffer;
-    MG_Util::Debug::LogD("MG_State: Buffer: Bind succeed bind buffer %u to target 0x%x", buffer, target);
-    return GL_NO_ERROR;
-}
-
-GLenum BufferState::CommitStorage(GLenum target, GLsizeiptr size, const void* data, GLenum usage) {
-    MG_Util::Debug::LogD("MG_State: Buffer: CommitStorage called on target 0x%x",target);
-    auto it = currentBindings_.find(target);
-    if (it == currentBindings_.end() || it->second == 0)
-        return GL_INVALID_OPERATION;
-
-    BufferObject& obj = buffers_[it->second];
-    MG_Util::Debug::LogD("MG_State: Buffer: CommitStorage get buffer object %u at target 0x%x",it->second,target);
-    obj.usage = usage;
-    obj.data.resize(size);
-    if (data) {
-        memcpy(obj.data.data(), data, size);
-        obj.dataValid = true;
-    }
-    obj.dirty = true;
-    MG_Util::Debug::LogD("MG_State: Buffer: CommitStorage buffer at target 0x%x committed storage, size = %zu, usage=0x%x", target, size, usage);
-
-    return GL_NO_ERROR;
-}
-
-GLenum BufferState::CommitStorageRegion(GLenum target, GLintptr offset, GLsizeiptr size, const void* data) {
-    MG_Util::Debug::LogD("MG_State: Buffer: BufferSubData called on target 0x%x, offset=%ld, size=%ld", target, offset, size);
-    if (!IsValidTarget_(target)) return GL_INVALID_ENUM;
-    if (offset < 0 || size < 0) return GL_INVALID_VALUE;
-
-    auto it = currentBindings_.find(target);
-    if (it == currentBindings_.end() || it->second == 0)
-        return GL_INVALID_OPERATION;
-
-    BufferObject& obj = buffers_[it->second];
-    MG_Util::Debug::LogD("MG_State: Buffer: BufferSubData get buffer object %u at target 0x%x", it->second, target);
-
-    if (static_cast<size_t>(offset + size) > obj.data.size()) return GL_INVALID_VALUE;
-
-    if (data) {
-        memcpy(obj.data.data() + offset, data, size);
-        obj.dirty = true;
-    }
-    return GL_NO_ERROR;
-}
-
-GLenum BufferState::AcquireBufferMemoryRange(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access, void** mappedPointer) {
-    MG_Util::Debug::LogD("MG_State: Buffer: AcquireBufferMemoryRange called with target=0x%x, offset=%ld, length=%ld, access=0x%x", target, offset, length, access);
-    if (!IsValidTarget_(target)) {
-        MG_Util::Debug::LogE("MG_State: Buffer: AcquireBufferMemoryRange failed: invalid target 0x%x", target);
-        return GL_INVALID_ENUM;
-    }
-    if (offset < 0 || length <= 0) {
-        MG_Util::Debug::LogE("MG_State: Buffer: AcquireBufferMemoryRange failed: invalid offset %ld or length %ld", offset, length);
-        return GL_INVALID_VALUE;
-    }
-
-    auto it = currentBindings_.find(target);
-    if (it == currentBindings_.end() || it->second == 0) {
-        MG_Util::Debug::LogE("MG_State: Buffer: AcquireBufferMemoryRange failed: no buffer bound to target 0x%x", target);
-        return GL_INVALID_OPERATION;
-    }
-
-    BufferObject& obj = buffers_[it->second];
-    MG_Util::Debug::LogD("MG_State: Buffer: AcquireBufferMemoryRange operating on buffer %u", it->second);
-    if (obj.isMapped) {
-        MG_Util::Debug::LogE("MG_State: Buffer: AcquireBufferMemoryRange failed: buffer %u is already mapped", it->second);
-        return GL_INVALID_OPERATION;
-    }
-
-    const GLbitfield validFlags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_RANGE_BIT | GL_MAP_FLUSH_EXPLICIT_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_INVALIDATE_BUFFER_BIT ;
-    if ((access & ~validFlags) != 0) {
-        MG_Util::Debug::LogE("MG_State: Buffer: AcquireBufferMemoryRange failed: invalid access flags 0x%x", access);
-        return GL_INVALID_VALUE;
-    }
-
-    if (static_cast<size_t>(offset + length) > obj.data.size()) {
-        MG_Util::Debug::LogE("MG_State: Buffer: AcquireBufferMemoryRange failed: requested range [%ld, %ld) exceeds buffer size %zu", offset, offset + length, obj.data.size());
-        return GL_INVALID_VALUE;
-    }
-
-    obj.isMapped = true;
-    obj.mapOffset = offset;
-    obj.mapLength = length;
-    obj.mapAccessFlags = access;
-    obj.dirty = true;
-    *mappedPointer = obj.data.data() + offset;
-    MG_Util::Debug::LogD("MG_State: Buffer: AcquireBufferMemoryRange succeeded for buffer %u. Mapped pointer: %p", it->second, *mappedPointer);
-    return GL_NO_ERROR;
-}
-
-GLenum BufferState::SyncBufferMemory(GLenum target, GLintptr offset, GLsizeiptr length) {
-    if (!IsValidTarget_(target)) return GL_INVALID_ENUM;
-    if (offset < 0 || length <= 0) return GL_INVALID_VALUE;
-
-    auto it = currentBindings_.find(target);
-    if (it == currentBindings_.end() || it->second == 0)
-        return GL_INVALID_OPERATION;
-
-    BufferObject& obj = buffers_[it->second];
-    if (!obj.isMapped || !(obj.mapAccessFlags & GL_MAP_FLUSH_EXPLICIT_BIT))
-        return GL_INVALID_OPERATION;
-
-    if (offset < obj.mapOffset || offset + length > obj.mapOffset + obj.mapLength)
-        return GL_INVALID_VALUE;
-
-    // TODO: Add support for flush range.
-    // Now only mark it as dirty.
-    obj.dirty = true;
-    return GL_NO_ERROR;
-}
-
-GLenum BufferState::CopyBufferRange(GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size) {
-    if (!IsValidTarget_(readTarget) || !IsValidTarget_(writeTarget))
-        return GL_INVALID_ENUM;
-    if (readOffset < 0 || writeOffset < 0 || size < 0)
-        return GL_INVALID_VALUE;
-
-    GLuint readBuffer = currentBindings_[readTarget];
-    GLuint writeBuffer = currentBindings_[writeTarget];
-    if (readBuffer == 0 || writeBuffer == 0 || readBuffer == writeBuffer)
-        return GL_INVALID_OPERATION;
-
-    BufferObject& src = buffers_[readBuffer];
-    BufferObject& dst = buffers_[writeBuffer];
-
-    if (static_cast<size_t>(readOffset + size) > src.data.size() ||
-        static_cast<size_t>(writeOffset + size) > dst.data.size())
-        return GL_INVALID_VALUE;
-
-    memcpy(dst.data.data() + writeOffset, src.data.data() + readOffset, size);
-    dst.dirty = true;
-    return GL_NO_ERROR;
-}
-
-GLenum BufferState::AcquireBufferMemory(GLenum target, GLenum access, void** mappedPointer) {
-    GLbitfield flags = 0;
-    switch (access) {
-        case GL_READ_ONLY:  flags = GL_MAP_READ_BIT; break;
-        case GL_WRITE_ONLY: flags = GL_MAP_WRITE_BIT; break;
-        case GL_READ_WRITE: flags = GL_MAP_READ_BIT | GL_MAP_WRITE_BIT; break;
-        default:
-            flags = access;
-    }
-    return AcquireBufferMemoryRange(target, 0, buffers_[currentBindings_[target]].data.size(), flags, mappedPointer);
-}
-
-GLenum BufferState::ReleaseBufferMemory(GLenum target) {
-    if (!IsValidTarget_(target))
-        return GL_INVALID_ENUM;
-
-    auto it = currentBindings_.find(target);
-    if (it == currentBindings_.end() || it->second == 0)
-        return GL_INVALID_OPERATION;
-
-    BufferObject& obj = buffers_[it->second];
-    if (!obj.isMapped)
-        return GL_INVALID_OPERATION;
-
-    if ((obj.mapAccessFlags & GL_MAP_FLUSH_EXPLICIT_BIT) == 0) {
-        obj.dirty = true;
-    }
-
-    obj.isMapped = false;
-    obj.mapOffset = 0;
-    obj.mapLength = 0;
-    obj.mapAccessFlags = 0;
-    obj.accessMode = GL_READ_WRITE;
-
-    return GL_NO_ERROR;
-}
-
-bool BufferState::ValidateAllocatedHandle(GLuint buffer) {
-    bool isValid = buffers_.find(buffer) != buffers_.end();
-    MG_Util::Debug::LogD("MG_State: Buffer: ValidateAllocatedHandle called on buffer %u returns %d", buffer, isValid);
-    return isValid;
-}
-
-bool BufferState::ValidateGeneratedName(GLuint buffer) {
-    bool inFreeList = std::find(freeId_.begin(), freeId_.end(), buffer) != freeId_.end();
-    bool lessThanLast = buffer < lastId_; // lastId_ is not generated yet
-    MG_Util::Debug::LogD("MG_State: Buffer: ValidateGeneratedName called on buffer %u returns %d", buffer, lessThanLast && !inFreeList);
-    return lessThanLast && !inFreeList;
-}
-
-void BufferState::Delete(GLuint buffer) {
-    buffers_.erase(buffer);
-    if (ValidateGeneratedName(buffer))
-        // TODO: Prevent the object that uses a freeId from conflicting with legacy object in the backend.
-        //freeId_.emplace_back(buffer);
-    for (auto& [target, id] : currentBindings_) {
-        if (id == buffer) id = 0;
-    }
-    MG_Util::Debug::LogD("MG_State: Buffer: Delete buffer %u", buffer);
-}
-
-GLenum BufferState::DeleteN(GLsizei n, const GLuint* buffers) {
-    MG_Util::Debug::LogD("MG_State: Buffer: DeleteN called with n=%d", n);
-    if (n < 0) return GL_INVALID_VALUE;
-
-    for (GLsizei i = 0; i < n; ++i) {
-        Delete(buffers[i]);
-    }
-    MG_Util::Debug::LogD("MG_State: Buffer: DeleteN deleted buffers successfully");
-    return GL_NO_ERROR;
-}
-
-bool BufferState::IsValidTarget_(GLenum target) {
-    MG_Util::Debug::LogD("MG_State: Buffer: IsValidTarget_ called with target=0x%x,result=%d", target, !(MG_Constants::Buffer::VALID_TARGETS.find(target) == MG_Constants::Buffer::VALID_TARGETS.end()));
-    return !(MG_Constants::Buffer::VALID_TARGETS.find(target) == MG_Constants::Buffer::VALID_TARGETS.end());
-}
-
-GLenum BufferState::QueryPropertyIntVector(GLenum target, GLenum pname, GLint* params) const {
-    MG_Util::Debug::LogD("MG_State: Buffer: QueryPropertyIntVector called at target 0x%x,param name = 0x%x",target,pname);
-    static const std::set<GLenum> validTargets = {
-            GL_ARRAY_BUFFER, GL_ELEMENT_ARRAY_BUFFER,
-            GL_PIXEL_PACK_BUFFER, GL_PIXEL_UNPACK_BUFFER
-    };
-    if (validTargets.find(target) == validTargets.end()) {
-        return GL_INVALID_ENUM;
-    }
-    
-    if (MG_Constants::Buffer::VALID_PARAM_NAMES.find(pname) == MG_Constants::Buffer::VALID_PARAM_NAMES.end()) {
-        return GL_INVALID_ENUM;
-    }
-    
-    auto bindingIt = currentBindings_.find(target);
-    if (bindingIt == currentBindings_.end() || bindingIt->second == 0) {
-        return GL_INVALID_OPERATION;
-    }
-    GLuint bufferId = bindingIt->second;
-    auto bufferIt = buffers_.find(bufferId);
-    if (bufferIt == buffers_.end()) {
-        return GL_INVALID_OPERATION;
-    }
-    
-    const BufferObject& buffer = bufferIt->second;
-    
-    switch (pname) {
-        case GL_BUFFER_ACCESS:
-            *params = static_cast<GLint>(buffer.accessMode);
-            break;
-        case GL_BUFFER_MAPPED:
-            *params = buffer.isMapped ? GL_TRUE : GL_FALSE;
-            break;
-        case GL_BUFFER_SIZE:
-            *params = static_cast<GLint>(buffer.data.size());
-            break;
-        case GL_BUFFER_USAGE:
-            *params = static_cast<GLint>(buffer.usage);
-            break;
-        MG_Util::Debug::LogD("MG_State: Buffer: QueryPropertyIntVector Query info about buffer %u succeed", target);
-        default:
-            return GL_INVALID_ENUM;
-    }
-    return GL_NO_ERROR;
-}
-
-
-GLuint BufferState::GetCurrentBinding(GLenum target) const {
-    auto it = currentBindings_.find(target);
-    if (it != currentBindings_.end()) {
-        return it->second;
-    }
-    return 0;
-}

MG/MG_GL/State/Buffer/BufferState.h

@@ -1,58 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/1.
-//
-
-#ifndef MOBILEGL_BUFFERSTATE_H
-#define MOBILEGL_BUFFERSTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
-
-class BufferState {
-    template <typename K, typename V>
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
-
-public:
-    struct BufferObject {
-        GLenum usage = GL_STATIC_DRAW;
-        std::vector<GLubyte> data;
-        bool dataValid = false;
-        bool dirty = false; // TODO: encapsulate this with an public API to RHI
-        bool isMapped = false;
-        bool generated = false;
-        GLenum accessMode = GL_READ_WRITE;
-        GLintptr mapOffset = 0;
-        GLsizeiptr mapLength = 0;
-        GLbitfield mapAccessFlags = 0;
-    };
-
-    // Return: the validity of the operation, according to OpenGL 3 standard
-    GLenum GenName(GLuint* buffer);
-    GLenum GenNameN(GLsizei n, GLuint* buffers);
-    GLenum Create(GLuint buffer);
-    GLenum Bind(GLenum target, GLuint buffer);
-    GLenum CommitStorage(GLenum target, GLsizeiptr size, const void* data, GLenum usage);
-    GLenum CommitStorageRegion(GLenum target, GLintptr offset, GLsizeiptr size, const void* data);
-    GLenum AcquireBufferMemoryRange(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access, void** mappedPointer);
-    GLenum SyncBufferMemory(GLenum target, GLintptr offset, GLsizeiptr length);
-    GLenum CopyBufferRange(GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
-    GLenum AcquireBufferMemory(GLenum target, GLenum access, void** mappedPointer);
-    GLenum ReleaseBufferMemory(GLenum target);
-    GLenum QueryPropertyIntVector(GLenum target, GLenum pname, GLint* params) const;
-    GLenum DeleteN(GLsizei n, const GLuint* buffers);
-    
-    bool ValidateAllocatedHandle(GLuint buffer);
-    bool ValidateGeneratedName(GLuint buffer);
-    void Delete(GLuint buffer);
-    GLuint GetCurrentBinding(GLenum target) const;
-
-    unordered_map<GLenum, GLuint> currentBindings_;
-    unordered_map<GLuint, BufferObject> buffers_;
-private:
-    std::vector<GLuint> freeId_;
-    GLuint lastId_ = 1;
-
-    static bool IsValidTarget_(GLenum target);
-};
-
-#endif //MOBILEGL_BUFFERSTATE_H

MG/MG_GL/State/Common/CommonState.cpp

@@ -1,158 +0,0 @@
-//
-// Created by BZLZHH on 2025/4/30.
-//
-
-#include "CommonState.h"
-
-CommonState::CommonState() {
-    pixelStoreParams[GL_PACK_ALIGNMENT] = 4;
-    pixelStoreParams[GL_UNPACK_ALIGNMENT] = 4;
-}
-
-GLenum CommonState::SetPixelStoreInt(GLenum pname, GLint param) {
-    if (MG_Constants::PixelStore::VALID_PARAM_NAMES.find(pname) == MG_Constants::PixelStore::VALID_PARAM_NAMES.end()) {
-        return GL_INVALID_ENUM;
-    }
-
-    switch (pname) {
-        case GL_PACK_SWAP_BYTES:
-        case GL_PACK_LSB_FIRST:
-        case GL_UNPACK_SWAP_BYTES:
-        case GL_UNPACK_LSB_FIRST:
-            break;
-        case GL_PACK_ROW_LENGTH:
-        case GL_PACK_IMAGE_HEIGHT:
-        case GL_PACK_SKIP_ROWS:
-        case GL_PACK_SKIP_PIXELS:
-        case GL_PACK_SKIP_IMAGES:
-        case GL_UNPACK_ROW_LENGTH:
-        case GL_UNPACK_IMAGE_HEIGHT:
-        case GL_UNPACK_SKIP_ROWS:
-        case GL_UNPACK_SKIP_PIXELS:
-        case GL_UNPACK_SKIP_IMAGES:
-            if (param < 0) {
-                return GL_INVALID_VALUE;
-            }
-            break;
-
-        case GL_PACK_ALIGNMENT:
-        case GL_UNPACK_ALIGNMENT:
-            if (param != 1 && param != 2 && param != 4 && param != 8) {
-                return GL_INVALID_VALUE;
-            }
-            break;
-
-        default:
-            return GL_INVALID_ENUM;
-    }
-
-    pixelStoreParams[pname] = param;
-    return GL_NO_ERROR;
-}
-
-GLint CommonState::QueryPixelStoreInt(GLenum pname) {
-    auto it = pixelStoreParams.find(pname);
-    if (it != pixelStoreParams.end()) {
-        return it->second;
-    }
-
-    auto defaultIt = MG_Constants::PixelStore::DEFAULT_VALUES_MAP.find(pname);
-    return (defaultIt != MG_Constants::PixelStore::DEFAULT_VALUES_MAP.end()) ? defaultIt->second : 0;
-}
-
-GLenum CommonState::Enable(GLenum cap) {
-    if (MG_Constants::CommonState::VALID_CAPS.find(cap) == MG_Constants::CommonState::VALID_CAPS.end()) {
-        return GL_INVALID_ENUM;
-    }
-    capabilities[cap] = true;
-    return GL_NO_ERROR;
-}
-
-GLenum CommonState::Disable(GLenum cap) {
-    if (MG_Constants::CommonState::VALID_CAPS.find(cap) == MG_Constants::CommonState::VALID_CAPS.end()) {
-        return GL_INVALID_ENUM;
-    }
-    capabilities[cap] = false;
-    return GL_NO_ERROR;
-}
-
-GLenum CommonState::BlendFunc(GLenum sfactor, GLenum dfactor) {
-    if (MG_Constants::Blend::VALID_FACTORS.find(sfactor) == MG_Constants::Blend::VALID_FACTORS.end() ||
-        MG_Constants::Blend::VALID_FACTORS.find(dfactor) == MG_Constants::Blend::VALID_FACTORS.end()) {
-        return GL_INVALID_ENUM;
-    }
-
-    blendSrcRGB = blendSrcAlpha = sfactor;
-    blendDstRGB = blendDstAlpha = dfactor;
-    return GL_NO_ERROR;
-}
-
-GLenum CommonState::BlendFuncSeparate(GLenum srcRGB, GLenum dstRGB,
-                                      GLenum srcAlpha, GLenum dstAlpha) {
-    if (MG_Constants::Blend::VALID_FACTORS.find(srcRGB) == MG_Constants::Blend::VALID_FACTORS.end() ||
-        MG_Constants::Blend::VALID_FACTORS.find(dstRGB) == MG_Constants::Blend::VALID_FACTORS.end() ||
-        MG_Constants::Blend::VALID_FACTORS.find(srcAlpha) == MG_Constants::Blend::VALID_FACTORS.end() ||
-        MG_Constants::Blend::VALID_FACTORS.find(dstAlpha) == MG_Constants::Blend::VALID_FACTORS.end()) {
-        return GL_INVALID_ENUM;
-    }
-    blendSrcRGB = srcRGB;
-    blendDstRGB = dstRGB;
-    blendSrcAlpha = srcAlpha;
-    blendDstAlpha = dstAlpha;
-    return GL_NO_ERROR;
-}
-
-GLenum CommonState::Clear(GLbitfield mask) {
-    const GLbitfield validBits = GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT;
-    if ((mask & ~validBits) != 0) {
-        return GL_INVALID_VALUE;
-    }
-    clearMask = mask;
-    return GL_NO_ERROR;
-}
-
-GLenum CommonState::ClearColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) {
-    clearColor[0] = red;
-    clearColor[1] = green;
-    clearColor[2] = blue;
-    clearColor[3] = alpha;
-    return GL_NO_ERROR;
-}
-
-GLenum CommonState::ClearDepth(GLfloat depth) {
-    clearDepth = depth;
-    return GL_NO_ERROR;
-}
-
-GLenum CommonState::ColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha) {
-    colorMask[0] = red;
-    colorMask[1] = green;
-    colorMask[2] = blue;
-    colorMask[3] = alpha;
-    return GL_NO_ERROR;
-}
-
-GLenum CommonState::DepthFunc(GLenum func) {
-    if (MG_Constants::Depth::VALID_FUNCS.find(func) == MG_Constants::Depth::VALID_FUNCS.end()) {
-        return GL_INVALID_ENUM;
-    }
-    depthFunc = func;
-    return GL_NO_ERROR;
-}
-
-GLenum CommonState::DepthMask(GLboolean flag) {
-    depthMask = flag;
-    return GL_NO_ERROR;
-}
-
-GLenum CommonState::Viewport(GLint x, GLint y, GLsizei width, GLsizei height) {
-    if (width < 0 || height < 0) {
-        return GL_INVALID_VALUE;
-    }
-
-    viewport[0] = x;
-    viewport[1] = y;
-    viewport[2] = width;
-    viewport[3] = height;
-    return GL_NO_ERROR;
-}

MG/MG_GL/State/Common/CommonState.h

@@ -1,65 +0,0 @@
-//
-// Created by BZLZHH on 2025/4/30.
-//
-
-#ifndef MOBILEGL_COMMONSTATE_H
-#define MOBILEGL_COMMONSTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
-
-class CommonState {
-    template <typename K, typename V>
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
-public:
-    // Viewport
-    GLint viewport[4] = {0, 0, 0, 0};
-    
-    // Color mask
-    GLboolean colorMask[4] = {GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE};
-    
-    // Pixel storage parameters
-    unordered_map<GLenum, GLint> pixelStoreParams;
-
-    // Blend state
-    GLenum blendSrcRGB = GL_ONE;
-    GLenum blendDstRGB = GL_ZERO;
-    GLenum blendSrcAlpha = GL_ONE;
-    GLenum blendDstAlpha = GL_ZERO;
-    
-    // Clear state
-    GLfloat clearColor[4] = {0.0f, 0.0f, 0.0f, 0.0f};
-    GLfloat clearDepth = 1.0f;
-    GLenum clearMask;
-
-    // Depth state
-    GLenum depthFunc = GL_LESS;
-    GLboolean depthMask = GL_TRUE;
-
-    // Capability enables
-    unordered_map<GLenum, bool> capabilities;
-    
-    CommonState();
-    
-    // Return: the validity of the operation, according to OpenGL 3 standard
-    GLenum SetPixelStoreInt(GLenum pname, GLint param);
-
-    GLenum Enable(GLenum cap);
-    GLenum Disable(GLenum cap);
-    GLenum BlendFunc(GLenum sfactor, GLenum dfactor);
-    GLenum BlendFuncSeparate(GLenum srcRGB, GLenum dstRGB,
-                             GLenum srcAlpha, GLenum dstAlpha);
-    GLenum Clear(GLbitfield mask);
-    GLenum ClearColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
-    GLenum ClearDepth(GLfloat depth);
-    GLenum ColorMask(GLboolean red, GLboolean green,
-                     GLboolean blue, GLboolean alpha);
-    GLenum DepthFunc(GLenum func);
-    GLenum DepthMask(GLboolean flag);
-    GLenum Viewport(GLint x, GLint y, GLsizei width, GLsizei height);
-    
-    GLint QueryPixelStoreInt(GLenum pname);
-
-};
-
-#endif //MOBILEGL_COMMONSTATE_H

MG/MG_GL/State/Core/GLState.cpp

@@ -1,407 +0,0 @@
-//
-// Created by BZLZHH on 2025/4/4.
-//
-
-#include "GLState.h"
-
-std::queue<GLenum> MG_State_T::glErrorQueue;
-TextureState* MG_State_T::textureState = nullptr;
-CommonState* MG_State_T::commonState = nullptr;
-BufferState* MG_State_T::bufferState = nullptr;
-VertexArrayState* MG_State_T::vertexArrayState = nullptr;
-ProgramState* MG_State_T::programState = nullptr;
-FramebufferState* MG_State_T::framebufferState = nullptr;
-
-namespace MG_State {
-    void Init() {
-        MG_State_T::textureState = new TextureState();
-        MG_State_T::commonState = new CommonState();
-        MG_State_T::bufferState = new BufferState();
-        MG_State_T::vertexArrayState = new VertexArrayState();
-        MG_State_T::programState = new ProgramState();
-        MG_State_T::framebufferState = new FramebufferState();
-    }
-    
-    void Destroy() {
-        delete MG_State_T::textureState;
-        delete MG_State_T::commonState;
-        delete MG_State_T::bufferState;
-        delete MG_State_T::vertexArrayState;
-        delete MG_State_T::programState;
-        delete MG_State_T::framebufferState;
-    }
-    
-    void SetError(GLenum error) {
-        if (error == GL_NO_ERROR) {
-            return;
-        }
-        MG_State_T::glErrorQueue.push(error);
-    }
-
-    GLenum GetError() {
-        if (MG_State_T::glErrorQueue.empty()) {
-            return GL_NO_ERROR;
-        }
-        GLenum error = MG_State_T::glErrorQueue.front();
-        MG_State_T::glErrorQueue.pop();
-        return error;
-    }
-
-// TODO: Take these functions apart into multiple files.
-
-    // Texture
-    GLenum BindTextureUnit(GLenum textureUnit) {
-        return MG_State_T::textureState->BindUnit(textureUnit);
-    }
-    
-    GLenum CreateTexture(GLuint* texture) {
-        return MG_State_T::textureState->Create(texture);
-    }
-    
-    GLenum CreateTextures(GLsizei n, GLuint* textures) {
-        return MG_State_T::textureState->CreateN(n, textures);
-    }
-    
-    GLenum BindTexture(GLenum target, GLuint texture) {
-        return MG_State_T::textureState->Bind(target, texture);
-    }
-    
-    GLenum UploadTexture2D(GLenum target, GLint level, GLint internalFormat,
-                           GLsizei width, GLsizei height, GLint border, GLenum format,
-                           GLenum type, const void* data) {
-        return MG_State_T::textureState->Upload2D(target, level, internalFormat, width, height, border, format, type, data);
-    }
-
-    GLenum UpdateTextureRegion2D(GLenum target, GLint level, GLint xoffset,
-                                 GLint yoffset, GLsizei width, GLsizei height, GLenum format,
-                                 GLenum type, const GLvoid* data) {
-        return MG_State_T::textureState->UpdateRegion2D(target, level, xoffset, yoffset, width, height, format, type, data);
-    }
-    
-    GLenum SetTexturePropertyInt(GLenum target, GLenum pname, GLint param) {
-        return MG_State_T::textureState->SetTexturePropertyInt(target, pname, param);
-    }
-    
-    GLenum SetTexturePropertyFloat(GLenum target, GLenum pname, GLfloat param) {
-        return MG_State_T::textureState->SetTexturePropertyFloat(target, pname, param);
-    }
-    
-    GLenum DeleteTexture(GLuint texture) {
-        return MG_State_T::textureState->Delete(texture);
-    }
-    
-    GLenum DeleteTextures(GLsizei n, const GLuint* textures) { 
-        return MG_State_T::textureState->DeleteN(n, textures);
-    }
-    
-    GLenum QueryTextureLevelPropertyIntVector(GLenum target, GLint level, GLenum pname, GLint* params) {
-        return MG_State_T::textureState->QueryLevelPropertyIntVector(target, level, pname, params);
-    }
-    
-    // Common
-    GLenum SetPixelStoreInt(GLenum pname, GLint param) {
-        return MG_State_T::commonState->SetPixelStoreInt(pname, param);
-    }
-
-    GLint QueryPixelStoreInt(GLenum pname) {
-        return MG_State_T::commonState->QueryPixelStoreInt(pname);
-    }
-    
-    GLenum glEnable(GLenum cap) {
-        return MG_State_T::commonState->Enable(cap);
-    }
-
-    GLenum glDisable(GLenum cap) {
-        return MG_State_T::commonState->Disable(cap);
-    }
-
-    GLenum glBlendFunc(GLenum sfactor, GLenum dfactor) {
-        return MG_State_T::commonState->BlendFunc(sfactor, dfactor);
-    }
-
-    GLenum glBlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha) {
-        return MG_State_T::commonState->BlendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
-    }
-
-    GLenum glClear(GLbitfield mask) {
-        return MG_State_T::commonState->Clear(mask);
-    }
-
-    GLenum glClearColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) {
-        return MG_State_T::commonState->ClearColor(red, green, blue, alpha);
-    }
-
-    GLenum glClearDepth(GLdouble depth) {
-        return MG_State_T::commonState->ClearDepth(static_cast<GLfloat>(depth));
-    }
-
-    GLenum glColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha) {
-        return MG_State_T::commonState->ColorMask(red, green, blue, alpha);
-    }
-
-    GLenum glDepthFunc(GLenum func) {
-        return MG_State_T::commonState->DepthFunc(func);
-    }
-
-    GLenum glDepthMask(GLboolean flag) {
-        return MG_State_T::commonState->DepthMask(flag);
-    }
-
-    GLenum glViewport(GLint x, GLint y, GLsizei width, GLsizei height) {
-        return MG_State_T::commonState->Viewport(x, y, width, height);
-    }
-
-    // Buffer
-    GLenum AcquireBufferMemory(GLenum target, GLenum access, void** mappedPtr) {
-        return MG_State_T::bufferState->AcquireBufferMemory(target, access, mappedPtr);
-    }
-    
-    GLenum AcquireBufferMemoryRange(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access, void** mappedPointer) {
-        return MG_State_T::bufferState->AcquireBufferMemoryRange(target, offset, length, access, mappedPointer);
-    }
-
-    GLenum SyncBufferMemory(GLenum target, GLintptr offset, GLsizeiptr length) {
-        return MG_State_T::bufferState->SyncBufferMemory(target, offset, length);
-    }
-
-    GLenum CopyBufferRange(GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size) {
-        return MG_State_T::bufferState->CopyBufferRange(readTarget, writeTarget, readOffset,
-                                                        writeOffset, size);
-    }
-
-    GLenum ReleaseBufferMemory(GLenum target) {
-        return MG_State_T::bufferState->ReleaseBufferMemory(target);
-    }
-
-    GLenum CreateBuffer(GLuint buffer) {
-        return MG_State_T::bufferState->Create(buffer);
-    }
-
-    GLenum GenBufferNames(GLsizei n, GLuint* buffers) {
-        return MG_State_T::bufferState->GenNameN(n, buffers);
-    }
-
-    GLenum BindBuffer(GLenum target, GLuint buffer) {
-        if (target == GL_ELEMENT_ARRAY_BUFFER) {
-            auto* vao = MG_State_T::vertexArrayState->GetCurrentVAO();
-            if (!vao) return GL_INVALID_OPERATION;
-            vao->elementBuffer = (GLuint)buffer;
-            vao->eboDirty = true;
-        }
-        return MG_State_T::bufferState->Bind(target, buffer);
-    }
-
-    GLenum CommitBufferStorage(GLenum target, GLsizeiptr size, const void* data, GLenum usage) {
-        return MG_State_T::bufferState->CommitStorage(target, size, data, usage);
-    }
-
-    GLenum CommitBufferStorageRegion(GLenum target, GLintptr offset, GLsizeiptr size, const void* data) {
-        return MG_State_T::bufferState->CommitStorageRegion(target, offset, size, data);
-    }
-
-    bool ValidateAllocatedBufferHandle(GLuint buffer) {
-        return MG_State_T::bufferState->ValidateAllocatedHandle(buffer);
-    }
-
-    bool ValidateGeneratedName(GLuint buffer) {
-        return MG_State_T::bufferState->ValidateGeneratedName(buffer);
-    }
-
-    void DeleteBuffer(GLuint buffer) {
-        return MG_State_T::bufferState->Delete(buffer);
-    }
-
-    GLenum DeleteBuffers(GLsizei n, const GLuint* buffers) {
-        return MG_State_T::bufferState->DeleteN(n, buffers);
-    }
-
-    GLenum QueryBufferPropertyIntVector(GLenum target, GLenum pname, GLint* params) {
-        return MG_State_T::bufferState->QueryPropertyIntVector(target, pname, params);
-    }
-    
-    // VertexArray
-    GLenum BindVertexArray(GLuint array) {
-        return MG_State_T::vertexArrayState->Bind(array);
-    }
-
-    GLenum CreateVertexArray(GLuint* array) {
-        return MG_State_T::vertexArrayState->Create(array);
-    }
-
-    GLenum CreateVertexArrays(GLsizei n, GLuint* arrays) {
-        return MG_State_T::vertexArrayState->CreateN(n, arrays);
-    }
-
-    GLenum GenVertexArraysNames(GLsizei n, GLuint* arrays) {
-        return MG_State_T::vertexArrayState->GenNameN(n, arrays);
-    }
-
-    GLenum EnableVertexAttribArray(GLuint index) {
-        return MG_State_T::vertexArrayState->EnableAttrib(index);
-    }
-
-    GLenum DisableVertexAttribArray(GLuint index) {
-        return MG_State_T::vertexArrayState->DisableAttrib(index);
-    }
-
-    GLenum SetVertexAttributeLayout(GLuint index, GLint size, GLenum type,
-                               GLboolean normalized, GLsizei stride,
-                               const void* pointer) {
-        GLuint currentBuffer = MG_State_T::bufferState->GetCurrentBinding(GL_ARRAY_BUFFER);
-        return MG_State_T::vertexArrayState->SetAttribPointer(
-                index, size, type, normalized, stride, pointer, false, currentBuffer
-        );
-    }
-
-    GLenum SetVertexAttributeLayoutInt(GLuint index, GLint size, GLenum type,
-                                GLsizei stride, const void* pointer) {
-        GLuint currentBuffer = MG_State_T::bufferState->GetCurrentBinding(GL_ARRAY_BUFFER);
-        return MG_State_T::vertexArrayState->SetAttribPointer(
-                index, size, type, GL_FALSE, stride, pointer, true, currentBuffer
-        );
-    }
-    
-    // Program
-    GLenum CreateShader(GLenum type, GLuint* shader) {
-        return MG_State_T::programState->CreateShader(type, shader);
-    }
-
-    GLenum CreateProgram(GLuint* program) {
-        return MG_State_T::programState->CreateProgram(program);
-    }
-
-    GLenum DeleteShader(GLuint shader) {
-        return MG_State_T::programState->DeleteShader(shader);
-    }
-
-    GLenum DeleteProgram(GLuint program) {
-        return MG_State_T::programState->DeleteProgram(program);
-    }
-
-    GLenum LinkShaderToProgram(GLuint program, GLuint shader) {
-        return MG_State_T::programState->LinkShaderToProgram(program, shader);
-    }
-
-    GLenum UploadShaderSource(GLuint shader, GLsizei count, const GLchar** string, const GLint* length) {
-        return MG_State_T::programState->UploadShaderSource(shader, count, string, length);
-    }
-
-    GLenum BuildShaderStage(GLuint shader) {
-        return MG_State_T::programState->BuildShaderStage(shader);
-    }
-
-    GLenum FinalizeProgramPipeline(GLuint program) {
-        return MG_State_T::programState->FinalizeProgramPipeline(program);
-    }
-
-    GLenum ActivateRenderProgram(GLuint program) {
-        return MG_State_T::programState->ActivateRenderProgram(program);
-    }
-
-    GLenum DefineProgramAttributeBinding(GLuint program, GLuint index, const GLchar* name) {
-        return MG_State_T::programState->DefineProgramAttributeBinding(program, index, name);
-    }
-
-    GLint QueryProgramAttributeBinding(GLuint program, const GLchar* name) {
-        return MG_State_T::programState->QueryProgramAttributeBinding(program, name);
-    }
-
-    GLint QueryProgramUniformLocation(GLuint program, const GLchar* name) {
-        return MG_State_T::programState->QueryProgramUniformLocation(program, name);
-    }
-
-    GLenum QueryProgramStateIntVector(GLuint program, GLenum pname, GLint* params) {
-        return MG_State_T::programState->QueryProgramStateIntVector(program, pname, params);
-    }
-
-    GLenum QueryShaderStateIntVector(GLuint shader, GLenum pname, GLint* params) {
-        return MG_State_T::programState->QueryShaderStateIntVector(shader, pname, params);
-    }
-
-#define IMPLEMENT_UNIFORM_FUNCTIONS(type, suffix, vecType)                               \
-void UpdateProgramUniform##suffix##1(GLint location, type v0) {                   \
-    MG_State_T::programState->UpdateUniform##suffix##1(location, v0); \
-}                                                                                        \
-void UpdateProgramUniform##suffix##2(GLint location, type v0, type v1) {          \
-    MG_State_T::programState->UpdateUniform##suffix##2(location, v0, v1); \
-}                                                                                        \
-void UpdateProgramUniform##suffix##3(GLint location, type v0, type v1, type v2) { \
-    MG_State_T::programState->UpdateUniform##suffix##3(location, v0, v1, v2); \
-}                                                                                        \
-void UpdateProgramUniform##suffix##4(GLint location, type v0, type v1, type v2, type v3) { \
-    MG_State_T::programState->UpdateUniform##suffix##4(location, v0, v1, v2, v3); \
-    } \
-void UpdateProgramUniform##suffix##Vector1(GLint location, GLsizei count, const type* value) { \
-    MG_State_T::programState->UpdateUniform##suffix##Vector1(location, count,value); \
-    } \
-void UpdateProgramUniform##suffix##Vector2(GLint location, GLsizei count, const type* value) { \
-    MG_State_T::programState->UpdateUniform##suffix##Vector2(location, count, value); \
-    } \
-void UpdateProgramUniform##suffix##Vector3(GLint location, GLsizei count, const type* value) { \
-    MG_State_T::programState->UpdateUniform##suffix##Vector3(location, count, value); \
-    } \
-void UpdateProgramUniform##suffix##Vector4(GLint location, GLsizei count, const type* value) { \
-    MG_State_T::programState->UpdateUniform##suffix##Vector4(location, count, value); \
-    }
-
-    IMPLEMENT_UNIFORM_FUNCTIONS(GLfloat, Float, GL_FLOAT_VEC4)
-    IMPLEMENT_UNIFORM_FUNCTIONS(GLint, Int, GL_INT_VEC4)
-    IMPLEMENT_UNIFORM_FUNCTIONS(GLuint, UInt, GL_UNSIGNED_INT_VEC4)
-    IMPLEMENT_UNIFORM_FUNCTIONS(GLboolean, Bool, GL_BOOL_VEC4)
-#undef IMPLEMENT_UNIFORM_FUNCTIONS
-
-#define IMPLEMENT_MATRIX_FUNCTIONS(suffix, matrixType) \
-void UpdateProgramUniformMatrix##suffix##Vector(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) { \
-    MG_State_T::programState->UpdateUniformMatrix##suffix##Vector(location, count, transpose, value); \
-}
-
-    IMPLEMENT_MATRIX_FUNCTIONS(2x2, GL_FLOAT_MAT2)
-    IMPLEMENT_MATRIX_FUNCTIONS(3x3, GL_FLOAT_MAT3)
-    IMPLEMENT_MATRIX_FUNCTIONS(4x4, GL_FLOAT_MAT4)
-    IMPLEMENT_MATRIX_FUNCTIONS(2x3, GL_FLOAT_MAT2x3)
-    IMPLEMENT_MATRIX_FUNCTIONS(2x4, GL_FLOAT_MAT2x4)
-    IMPLEMENT_MATRIX_FUNCTIONS(3x2, GL_FLOAT_MAT3x2)
-    IMPLEMENT_MATRIX_FUNCTIONS(3x4, GL_FLOAT_MAT3x4)
-    IMPLEMENT_MATRIX_FUNCTIONS(4x2, GL_FLOAT_MAT4x2)
-    IMPLEMENT_MATRIX_FUNCTIONS(4x3, GL_FLOAT_MAT4x3)
-#undef IMPLEMENT_MATRIX_FUNCTIONS
-    
-    GLuint GetCurrentProgram() {
-        return MG_State_T::programState->GetCurrentProgram();
-    }
-    
-    bool SetProgramStatus(GLuint program, GLboolean status) {
-        return MG_State_T::programState->SetProgramStatus(program, status);
-    }
-    
-    bool SetShaderStatus(GLuint shader, GLboolean status) {
-        return MG_State_T::programState->SetShaderStatus(shader, status);
-    }
-    
-    // Framebuffer
-    GLenum MG_State::CreateFramebuffer(GLuint* framebuffer) {
-        return MG_State_T::framebufferState->Create(framebuffer);
-    }
-    
-    GLenum MG_State::CreateFramebuffers(GLsizei n, GLuint* framebuffers) {
-        return MG_State_T::framebufferState->CreateN(n, framebuffers);
-    }
-    
-    GLenum MG_State::DeleteFramebuffer(GLuint framebuffer) {
-        return MG_State_T::framebufferState->Delete(framebuffer);
-    }
-    
-    GLenum MG_State::BindFramebuffer(GLenum target, GLuint framebuffer) {
-        return MG_State_T::framebufferState->Bind(target, framebuffer);
-    }
-    
-    GLenum MG_State::AttachTexture2DToFramebuffer(GLenum target, GLenum attachment, GLenum textarget,
-                                                  GLuint texture, GLint level) {
-        return MG_State_T::framebufferState->AttachTexture2D(target, attachment, textarget,
-                                                             texture, level);
-    }
-    
-    GLenum MG_State::ValidateFramebufferCompleteness(GLenum target) {
-        return MG_State_T::framebufferState->ValidateCompleteness(target);
-    }
-}

MG/MG_GL/State/Core/GLState.h

@@ -1,151 +0,0 @@
-//
-// Created by BZLZHH on 2025/4/4.
-//
-
-#ifndef MOBILEGL_GLSTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
-
-struct MG_State_T {
-    static std::queue<GLenum> glErrorQueue;
-    static TextureState* textureState;
-    static CommonState* commonState;
-    static BufferState* bufferState;
-    static VertexArrayState* vertexArrayState;
-    static ProgramState* programState;
-    static FramebufferState* framebufferState;
-};
-
-namespace MG_State {
-    void Init();
-    void Destroy();
-    void SetError(GLenum error);
-    GLenum GetError();
-    
-    //Texture
-    GLenum BindTextureUnit(GLenum textureUnit);
-    GLenum CreateTexture(GLuint* texture);
-    GLenum CreateTextures(GLsizei n, GLuint* textures);
-    GLenum BindTexture(GLenum target, GLuint texture);
-    GLenum UploadTexture2D(GLenum target, GLint level, GLint internalFormat,
-                           GLsizei width, GLsizei height, GLint border, GLenum format,
-                           GLenum type, const void* data);
-    GLenum UpdateTextureRegion2D(GLenum target, GLint level, GLint xoffset,
-                                 GLint yoffset, GLsizei width, GLsizei height, GLenum format,
-                                 GLenum type, const GLvoid* data);
-    GLenum SetTexturePropertyInt(GLenum target, GLenum pname, GLint param);
-    GLenum SetTexturePropertyFloat(GLenum target, GLenum pname, GLfloat param);
-    GLenum DeleteTexture(GLuint texture);
-    GLenum DeleteTextures(GLsizei n, const GLuint* textures);
-    GLenum QueryTextureLevelPropertyIntVector(GLenum target, GLint level, GLenum pname, GLint* params);
-    
-    // Common
-    GLenum SetPixelStoreInt(GLenum pname, GLint param);
-    GLint QueryPixelStoreInt(GLenum pname);
-    GLenum glEnable(GLenum cap);
-    GLenum glDisable(GLenum cap);
-    GLenum glBlendFunc(GLenum sfactor, GLenum dfactor);
-    GLenum glBlendFuncSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha);
-    GLenum glClear(GLbitfield mask);
-    GLenum glClearColor(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
-    GLenum glClearDepth(GLdouble depth);
-    GLenum glColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
-    GLenum glDepthFunc(GLenum func);
-    GLenum glDepthMask(GLboolean flag);
-    GLenum glViewport(GLint x, GLint y, GLsizei width, GLsizei height);
-    
-    // Buffer
-    GLenum AcquireBufferMemory(GLenum target, GLenum access, void** mappedPtr);
-    GLenum AcquireBufferMemoryRange(GLenum target, GLintptr offset, GLsizeiptr length, GLbitfield access, void** mappedPointer);
-    GLenum SyncBufferMemory(GLenum target, GLintptr offset, GLsizeiptr length);
-    GLenum CopyBufferRange(GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
-    GLenum ReleaseBufferMemory(GLenum target);
-    GLenum CreateBuffer(GLuint buffer);
-    GLenum GenBufferNames(GLsizei n, GLuint* buffers);
-    GLenum BindBuffer(GLenum target, GLuint buffer);
-    GLenum CommitBufferStorage(GLenum target, GLsizeiptr size, const void* data, GLenum usage);
-    GLenum CommitBufferStorageRegion(GLenum target, GLintptr offset, GLsizeiptr size, const void* data);
-    bool ValidateAllocatedBufferHandle(GLuint buffer);
-    bool ValidateGeneratedName(GLuint buffer);
-    void DeleteBuffer(GLuint buffer);
-    GLenum DeleteBuffers(GLsizei n, const GLuint* buffers);
-    GLenum QueryBufferPropertyIntVector(GLenum target, GLenum pname, GLint* params);
-    
-    // VertexArray
-    GLenum CreateVertexArray(GLuint* array);
-    GLenum CreateVertexArrays(GLsizei n, GLuint* arrays);
-    GLenum GenVertexArraysNames(GLsizei n, GLuint* arrays);
-    GLenum BindVertexArray(GLuint array);
-    GLenum EnableVertexAttribArray(GLuint index);
-    GLenum DisableVertexAttribArray(GLuint index);
-    GLenum SetVertexAttributeLayout(GLuint index, GLint size, GLenum type,
-                                    GLboolean normalized, GLsizei stride,
-                                    const void* pointer);
-    GLenum SetVertexAttributeLayoutInt(GLuint index, GLint size, GLenum type,
-                                       GLsizei stride, const void* pointer);
-    
-    // Program
-    GLenum CreateShader(GLenum type, GLuint* shader);
-    GLenum CreateProgram(GLuint* program);
-    GLenum DeleteShader(GLuint shader);
-    GLenum DeleteProgram(GLuint program);
-    GLenum LinkShaderToProgram(GLuint program, GLuint shader);
-    GLenum UploadShaderSource(GLuint shader, GLsizei count, const GLchar** string, const GLint* length);
-    GLenum BuildShaderStage(GLuint shader);
-    GLenum FinalizeProgramPipeline(GLuint program);
-    GLenum ActivateRenderProgram(GLuint program);
-    GLenum DefineProgramAttributeBinding(GLuint program, GLuint index, const GLchar* name);
-    GLint QueryProgramAttributeBinding(GLuint program, const GLchar* name);
-    GLint QueryProgramUniformLocation(GLuint program, const GLchar* name);
-    GLenum QueryProgramStateIntVector(GLuint program, GLenum pname, GLint* params);
-    GLenum QueryShaderStateIntVector(GLuint shader, GLenum pname, GLint* params);
-    template<typename T>
-    GLenum SetUniform(GLuint program, GLint location, GLsizei count, const T* value, GLenum type);
-
-    template<typename T>
-    GLenum SetUniformMatrix(GLuint program, GLint location, GLsizei count, GLboolean transpose, const T* value, GLenum matrixType);
-
-#define DECLARE_UNIFORM_FUNCTIONS(type, suffix, vecType) \
-    void UpdateProgramUniform##suffix##1(GLint location, type v0); \
-    void UpdateProgramUniform##suffix##2(GLint location, type v0, type v1); \
-    void UpdateProgramUniform##suffix##3(GLint location, type v0, type v1, type v2); \
-    void UpdateProgramUniform##suffix##4(GLint location, type v0, type v1, type v2, type v3); \
-    void UpdateProgramUniform##suffix##Vector1(GLint location, GLsizei count, const type* value); \
-    void UpdateProgramUniform##suffix##Vector2(GLint location, GLsizei count, const type* value); \
-    void UpdateProgramUniform##suffix##Vector3(GLint location, GLsizei count, const type* value); \
-    void UpdateProgramUniform##suffix##Vector4(GLint location, GLsizei count, const type* value);
-    DECLARE_UNIFORM_FUNCTIONS(GLfloat, Float, GL_FLOAT)
-    DECLARE_UNIFORM_FUNCTIONS(GLint, Int, GL_INT)
-    DECLARE_UNIFORM_FUNCTIONS(GLuint, UInt, GL_UNSIGNED_INT)
-    DECLARE_UNIFORM_FUNCTIONS(GLboolean, Bool, GL_BOOL)
-#undef DECLARE_UNIFORM_FUNCTIONS
-#define DECLARE_MATRIX_FUNCTIONS(suffix, matrixType) \
-    void UpdateProgramUniformMatrix##suffix##Vector(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-    DECLARE_MATRIX_FUNCTIONS(2x2, GL_FLOAT_MAT2)
-    DECLARE_MATRIX_FUNCTIONS(3x3, GL_FLOAT_MAT3)
-    DECLARE_MATRIX_FUNCTIONS(4x4, GL_FLOAT_MAT4)
-    DECLARE_MATRIX_FUNCTIONS(2x3, GL_FLOAT_MAT2x3)
-    DECLARE_MATRIX_FUNCTIONS(2x4, GL_FLOAT_MAT2x4)
-    DECLARE_MATRIX_FUNCTIONS(3x2, GL_FLOAT_MAT3x2)
-    DECLARE_MATRIX_FUNCTIONS(3x4, GL_FLOAT_MAT3x4)
-    DECLARE_MATRIX_FUNCTIONS(4x2, GL_FLOAT_MAT4x2)
-    DECLARE_MATRIX_FUNCTIONS(4x3, GL_FLOAT_MAT4x3)
-#undef DECLARE_MATRIX_FUNCTIONS
-    
-    GLuint GetCurrentProgram();
-    bool SetProgramStatus(GLuint program, GLboolean status);
-    bool SetShaderStatus(GLuint shader, GLboolean status);
-    
-    // Framebuffer
-    GLenum CreateFramebuffer(GLuint* framebuffer);
-    GLenum CreateFramebuffers(GLsizei n, GLuint* framebuffers);
-    GLenum DeleteFramebuffer(GLuint framebuffer);
-    GLenum BindFramebuffer(GLenum target, GLuint framebuffer);
-    GLenum AttachTexture2DToFramebuffer(GLenum target, GLenum attachment, GLenum textarget,
-                                        GLuint texture, GLint level);
-    GLenum ValidateFramebufferCompleteness(GLenum target);
-}
-
-
-#endif //MOBILEGL_GLSTATE_H

MG/MG_GL/State/Framebuffer/FramebufferState.cpp

@@ -1,165 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/3.
-//
-
-// TODO: Add more gl error check for framebuffer state manager.
-// TODO: Check if the state machine really meets up to OpenGL 3 standard.
-
-#include "FramebufferState.h"
-
-// Re-Include Includes.h, cuz of the absence of GLState.h
-#undef MOBILEGL_GLSTATE_H
-#include "../../../Includes.h"
-
-GLenum FramebufferState::Create(GLuint* framebuffer) {
-    if (!framebuffer) return GL_INVALID_VALUE;
-    GLuint id = freeIds_.empty() ? ++lastId_ : *freeIds_.begin();
-    if (!freeIds_.empty()) freeIds_.erase(freeIds_.begin());
-    *framebuffer = id;
-    framebuffers_[id].generated = true;
-    return GL_NO_ERROR;
-}
-
-GLenum FramebufferState::CreateN(GLsizei n, GLuint* framebuffers) {
-    if (n < 0) return GL_INVALID_VALUE;
-    for (GLsizei i = 0; i < n; ++i) {
-        if (GLenum err = Create(&framebuffers[i])) return err;
-    }
-    return GL_NO_ERROR;
-}
-
-GLenum FramebufferState::Delete(GLuint framebuffer) {
-    if (framebuffer == 0) return GL_INVALID_VALUE;
-    
-    if (framebuffers_.erase(framebuffer)) {
-        // TODO: Prevent the object that uses a freeId from conflicting with legacy object in the backend.
-        //freeIds_.insert(framebuffer);
-        for (auto& [target, id] : currentBindings_) {
-            if (id == framebuffer) id = 0;
-        }
-    }
-    return GL_NO_ERROR;
-}
-
-GLenum FramebufferState::Bind(GLenum target, GLuint framebuffer) {
-    if (MG_Constants::Framebuffer::VALID_TARGETS.find(target) == MG_Constants::Framebuffer::VALID_TARGETS.end()) 
-        return GL_INVALID_ENUM;
-    if (framebuffer != 0 && !ValidateHandle(framebuffer))
-        return GL_INVALID_OPERATION;
-    if (target == GL_FRAMEBUFFER) {
-        currentBindings_[GL_READ_FRAMEBUFFER] = framebuffer;
-        currentBindings_[GL_DRAW_FRAMEBUFFER] = framebuffer;
-    } else {
-        currentBindings_[target] = framebuffer;
-    }
-    return GL_NO_ERROR;
-}
-
-GLenum FramebufferState::AttachTexture2D(GLenum target, GLenum attachment,
-                                         GLenum textarget, GLuint texture, GLint level) {
-    if (MG_Constants::Framebuffer::VALID_ATTACHMENTS.find(attachment) == MG_Constants::Framebuffer::VALID_ATTACHMENTS.end() ||
-        MG_Constants::Texture::VALID_TARGETS.find(textarget) == MG_Constants::Texture::VALID_TARGETS.end())
-        return GL_INVALID_ENUM;
-    if (target == GL_FRAMEBUFFER) target = GL_DRAW_FRAMEBUFFER;
-    FramebufferObject* fbo = GetCurrentFBO(target);
-    if (!fbo) return GL_INVALID_OPERATION;
-    if (texture != 0 && !MG_State_T::textureState->IsTexture(texture))
-        return GL_INVALID_VALUE;
-    FramebufferAttachment att;
-    att.type = GL_TEXTURE_2D;
-    att.handle = texture;
-    att.mipLevel = level;
-    fbo->attachments[attachment] = att;
-    
-    if (texture != 0) {
-        GLint params = 0;
-        MG_State_T::textureState->QueryLevelPropertyIntVector(
-            textarget, level, GL_TEXTURE_WIDTH, &params);
-        fbo->width = params;
-        MG_State_T::textureState->QueryLevelPropertyIntVector(
-            textarget, level, GL_TEXTURE_HEIGHT, &params);
-        fbo->height = params;
-    }
-    UpdateCompleteness(*fbo);
-    return GL_NO_ERROR;
-}
-
-GLenum FramebufferState::ValidateCompleteness(GLenum target) {
-    if (target == GL_FRAMEBUFFER) target = GL_DRAW_FRAMEBUFFER;
-    FramebufferObject* fbo = GetCurrentFBO(target);
-    if (!fbo) return GL_INVALID_OPERATION;
-    return fbo->status;
-}
-
-void FramebufferState::UpdateCompleteness(FramebufferObject& fbo) {
-    if (fbo.attachments.empty()) {
-        fbo.status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT;
-        return;
-    }
-    bool hasColor = false;
-    bool hasDepth = false;
-    bool hasStencil = false;
-    GLsizei width = 0, height = 0;
-    for (const auto& [attach, att] : fbo.attachments) {
-        GLsizei attWidth = 0, attHeight = 0;
-        if (att.handle != 0) {
-            GLint params = 0;
-            MG_State_T::textureState->QueryLevelPropertyIntVector(
-                GL_TEXTURE_2D, att.mipLevel, GL_TEXTURE_WIDTH, &params);
-            attWidth = params;
-            MG_State_T::textureState->QueryLevelPropertyIntVector(
-                GL_TEXTURE_2D, att.mipLevel, GL_TEXTURE_HEIGHT, &params);
-            attHeight = params;
-        }
-        if (width == 0) {
-            width = attWidth;
-            height = attHeight;
-        } else if (attWidth != width || attHeight != height) {
-            fbo.status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS;
-            return;
-        }
-        
-        if (attach == GL_DEPTH_ATTACHMENT) hasDepth = true;
-        if (attach == GL_STENCIL_ATTACHMENT) hasStencil = true;
-        if (attach >= GL_COLOR_ATTACHMENT0 && 
-            attach <= GL_COLOR_ATTACHMENT31) hasColor = true;
-    }
-    
-    if (!ValidateAttachmentCombination(fbo)) {
-        fbo.status = GL_FRAMEBUFFER_UNSUPPORTED;
-        return;
-    }
-    fbo.status = GL_FRAMEBUFFER_COMPLETE;
-}
-
-bool FramebufferState::ValidateAttachmentCombination(const FramebufferObject& fbo) {
-    bool depthStencilConflict = false;
-    for (const auto& [attach, att] : fbo.attachments) {
-        if (attach == GL_DEPTH_STENCIL_ATTACHMENT) {
-            GLint internalFormat = 0;
-            MG_State_T::textureState->QueryLevelPropertyIntVector(
-                GL_TEXTURE_2D, att.mipLevel, GL_TEXTURE_INTERNAL_FORMAT, &internalFormat);
-            if (internalFormat != GL_DEPTH24_STENCIL8 && 
-                internalFormat != GL_DEPTH32F_STENCIL8) {
-                return false;
-            }
-        }
-    }
-    return true;
-}
-
-FramebufferObject* FramebufferState::GetCurrentFBO(GLenum target) {
-    auto it = currentBindings_.find(target);
-    if (it == currentBindings_.end()) return nullptr;
-    
-    GLuint id = it->second;
-    if (id == 0) return nullptr;
-    
-    auto fboIt = framebuffers_.find(id);
-    return (fboIt != framebuffers_.end()) ? &fboIt->second : nullptr;
-}
-
-bool FramebufferState::ValidateHandle(GLuint framebuffer) {
-    return framebuffers_.count(framebuffer) && 
-           framebuffers_[framebuffer].generated;
-}

MG/MG_GL/State/Framebuffer/FramebufferState.h

@@ -1,49 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/3.
-//
-
-#ifndef MOBILEGL_FRAMEBUFFERSTATE_H
-#define MOBILEGL_FRAMEBUFFERSTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
-
-struct FramebufferAttachment {
-    GLenum type = GL_NONE;
-    GLuint handle = 0;
-    GLint mipLevel = 0;
-    GLint zoffset = 0;
-};
-
-struct FramebufferObject {
-    bool generated = false;
-    ankerl::unordered_map<GLenum, FramebufferAttachment> attachments;
-    GLenum status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT;
-    GLsizei width = 0;
-    GLsizei height = 0;
-};
-
-class FramebufferState {
-public:
-    // Return: the validity of the operation
-    GLenum Create(GLuint* framebuffer);
-    GLenum CreateN(GLsizei n, GLuint* framebuffers);
-    GLenum Delete(GLuint framebuffer);
-    GLenum Bind(GLenum target, GLuint framebuffer);
-    GLenum AttachTexture2D(GLenum target, GLenum attachment,
-                           GLenum textarget, GLuint texture, GLint level);
-    GLenum ValidateCompleteness(GLenum target);
-    FramebufferObject* GetCurrentFBO(GLenum target);
-    
-    ankerl::unordered_map<GLenum, GLuint> currentBindings_; // READ/DRAW
-    
-private:
-    ankerl::unordered_map<GLuint, FramebufferObject> framebuffers_;
-    std::set<GLuint> freeIds_;
-    GLuint lastId_ = 0;
-    bool ValidateHandle(GLuint framebuffer);
-    static void UpdateCompleteness(FramebufferObject& fbo);
-    static bool ValidateAttachmentCombination(const FramebufferObject& fbo);
-};
-
-#endif //MOBILEGL_FRAMEBUFFERSTATE_H

MG/MG_GL/State/Program/ProgramState.cpp

@@ -1,577 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/1.
-
-// TODO: Add more gl error check for buffer state manager.
-// TODO: Check if the state machine really meets up to OpenGL 3 standard.
-
-#include "ProgramState.h"
-
-// Re-Include Includes.h, cuz of the absence of Program/DebugTool.h and Program/GLSLTool.cpp.
-#undef MOBILEGL_GLSLTOOL_H
-#undef MOBILEGL_PROGRAM_DEBUGTOOL_H
-#include "../../../Includes.h"
-
-ProgramState::ProgramState() {
-    glslang::InitializeProcess();
-}
-
-ProgramState::~ProgramState() {
-    glslang::FinalizeProcess();
-}
-
-GLenum ProgramState::CreateProgram(GLuint* program) {
-    MG_Util::Debug::LogD("MG_State: Program: CreateProgram called, program ptr=%p", program);
-    if (!program) {
-        MG_Util::Debug::LogE("MG_State: Program: CreateProgram error: program pointer is null");
-        return GL_INVALID_VALUE;
-    }
-
-    GLuint id = freeProgramIds_.empty() ? ++lastProgramId_ : *freeProgramIds_.begin();
-    if (!freeProgramIds_.empty())
-        freeProgramIds_.erase(freeProgramIds_.begin());
-
-    ProgramObject obj;
-    obj.linked = {UncertainBool::Unknown, UncertainBool::False};
-    obj.linkStatus = GL_FALSE;
-    obj.markedForDeletion = false;
-    programs_[id] = obj;
-    *program = id;
-    MG_Util::Debug::LogD("MG_State: Program: CreateProgram success, new id=%u", id);
-    return GL_NO_ERROR;
-}
-
-GLenum ProgramState::DeleteProgram(GLuint program) {
-    MG_Util::Debug::LogD("MG_State: Program: DeleteProgram called, id=%u", program);
-    if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: DeleteProgram error: invalid program id %u", program);
-        return GL_INVALID_VALUE;
-    }
-
-    programs_.erase(program);
-    //freeProgramIds_.insert(program);
-    if (currentProgram_ == program)
-        currentProgram_ = 0;
-    MG_Util::Debug::LogD("MG_State: Program: DeleteProgram success, id=%u", program);
-    return GL_NO_ERROR;
-}
-
-GLenum ProgramState::LinkShaderToProgram(GLuint program, GLuint shader) {
-    MG_Util::Debug::LogD("MG_State: Program: LinkShaderToProgram called, program=%u, shader=%u",
-                         program, shader);
-    if (!ValidateProgram_(program) || !ValidateShader_(shader)) {
-        MG_Util::Debug::LogE("MG_State: Program: LinkShaderToProgram error: invalid ids program=%u shader=%u",
-                             program, shader);
-        return GL_INVALID_VALUE;
-    }
-
-    auto& prog = programs_[program];
-    if (std::find(prog.attachedShaders.begin(),
-                  prog.attachedShaders.end(), shader) != prog.attachedShaders.end()) {
-        MG_Util::Debug::LogW("MG_State: Program: LinkShaderToProgram warning: shader %u already attached to program %u",
-                             shader, program);
-        return GL_INVALID_OPERATION;
-    }
-
-    prog.attachedShaders.push_back(shader);
-    MG_Util::Debug::LogD("MG_State: Program: LinkShaderToProgram success: shader %u attached to program %u",
-                         shader, program);
-    return GL_NO_ERROR;
-}
-
-GLenum ProgramState::FinalizeProgramPipeline(GLuint program) {
-    MG_Util::Debug::LogD("MG_State: Program: FinalizeProgramPipeline called, id=%u", program);
-    if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: FinalizeProgramPipeline error: invalid program id %u", program);
-        return GL_INVALID_VALUE;
-    }
-    auto& prog = programs_[program];
-
-    for (GLuint shader : prog.attachedShaders) {
-        if (!shaders_[shader].compiled.toBool()) {
-            MG_Util::Debug::LogE("MG_State: Program: FinalizeProgramPipeline error: shader %u not compiled", shader);
-            return GL_INVALID_OPERATION;
-        }
-    }
-
-    prog.infoLog.clear();
-    
-    for (GLuint shaderId : prog.attachedShaders) {
-        auto& shader = shaders_[shaderId];
-        if (!shader.compiled.toBool() || shader.compiledSpirv.empty()) {
-            prog.infoLog = "Program linking failed: \n" +
-                           MG_Util::Program::GetShaderTypeName(shader.type) + " is not compiled.";
-            prog.linked = UncertainBool::False;
-            prog.linkStatus = GL_FALSE;
-            MG_Util::Debug::LogE("MG_State: Program: FinalizeProgramPipeline error: %s", prog.infoLog.c_str());
-            return GL_INVALID_OPERATION;
-        }
-    }
-
-    std::vector<std::vector<unsigned>> allSpirv = 
-            MG_Util::Program::CompileMultipleShadersToSPIRV(*this, prog, prog.infoLog);
-    
-    MG_Util::Program::ReflectSPIRVUniforms(allSpirv, prog, prog.infoLog);
-    if (!prog.infoLog.empty()) {
-        prog.linked = UncertainBool::False;
-        prog.linkStatus = GL_FALSE;
-        prog.infoLog = "Program linking failed: " + prog.infoLog;
-        MG_Util::Debug::LogE("MG_State: Program: FinalizeProgramPipeline error: %s", prog.infoLog.c_str());
-        return GL_INVALID_OPERATION;
-    }
-
-    for (auto& [name, index] : prog.attribBindings) {
-        prog.attribLocations[name] = index;
-    }
-
-    prog.linked = {UncertainBool::Unknown, UncertainBool::True};
-    prog.linkStatus = GL_TRUE;
-
-    CleanupShaders_();
-
-    MG_Util::Program::DumpUniforms(*this, program);
-    MG_Util::Debug::LogD("MG_State: Program: FinalizeProgramPipeline success, id=%u", program);
-    return GL_NO_ERROR;
-}
-
-GLenum ProgramState::ActivateRenderProgram(GLuint program) {
-    MG_Util::Debug::LogD("MG_State: Program: ActivateRenderProgram called, id=%u", program);
-    if (program != 0 && !ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: ActivateRenderProgram error: invalid program id %u", program);
-        return GL_INVALID_VALUE;
-    }
-
-    MG_Util::Program::DumpCurrentUniforms(*this);
-    currentProgram_ = program;
-    MG_Util::Program::DumpCurrentUniforms(*this);
-    MG_Util::Debug::LogD("MG_State: Program: ActivateRenderProgram success, current program=%u", currentProgram_);
-    return GL_NO_ERROR;
-}
-
-GLenum ProgramState::DefineProgramAttributeBinding(GLuint program, GLuint index, const GLchar* name) {
-    MG_Util::Debug::LogD("MG_State: Program: DefineProgramAttributeBinding called, program=%u, index=%u, name=%s",
-                         program, index, name);
-    if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: DefineProgramAttributeBinding error: invalid program id %u", program);
-        return GL_INVALID_VALUE;
-    }
-    if (index >= GL_MAX_VERTEX_ATTRIBS) {
-        MG_Util::Debug::LogE("MG_State: Program: DefineProgramAttributeBinding error: index %u out of range", index);
-        return GL_INVALID_VALUE;
-    }
-
-    programs_[program].attribBindings[name] = index;
-    MG_Util::Debug::LogD("MG_State: Program: DefineProgramAttributeBinding success: %s -> %u", name, index);
-    return GL_NO_ERROR;
-}
-
-GLint ProgramState::QueryProgramAttributeBinding(GLuint program, const GLchar* name) {
-    MG_Util::Debug::LogD("MG_State: Program: QueryProgramAttributeBinding called, program=%u, name=%s",
-                         program, name);
-    if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: QueryProgramAttributeBinding error: invalid program id %u", program);
-        return -1;
-    }
-
-    auto& prog = programs_[program];
-    auto it = prog.attribLocations.find(name);
-    if (it != prog.attribLocations.end()) {
-        GLint loc = it->second;
-        MG_Util::Debug::LogD("MG_State: Program: QueryProgramAttributeBinding success: %s -> %d", name, loc);
-        return loc;
-    }
-    MG_Util::Debug::LogW("MG_State: Program: QueryProgramAttributeBinding warning: name '%s' not found", name);
-    return -1;
-}
-
-GLenum ProgramState::QueryProgramStateIntVector(GLuint program, GLenum pname, GLint* params) {
-    MG_Util::Debug::LogD("MG_State: Program: QueryProgramStateIntVector called, program=%u, pname=0x%X",
-                         program, pname);
-    if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: QueryProgramStateIntVector error: invalid program id %u", program);
-        return GL_INVALID_VALUE;
-    }
-    auto& prog = programs_[program];
-
-    switch (pname) {
-        case GL_LINK_STATUS:     *params = prog.linkStatus; break;
-        case GL_DELETE_STATUS:   *params = prog.markedForDeletion; break;
-        case GL_ATTACHED_SHADERS:*params = (GLint)prog.attachedShaders.size(); break;
-        default:
-            MG_Util::Debug::LogE("MG_State: Program: QueryProgramStateIntVector error: invalid pname 0x%X", pname);
-            return GL_INVALID_ENUM;
-    }
-    MG_Util::Debug::LogD("MG_State: Program: QueryProgramStateIntVector success: value=%d", *params);
-    return GL_NO_ERROR;
-}
-
-GLenum ProgramState::QueryShaderStateIntVector(GLuint shader, GLenum pname, GLint* params) {
-    MG_Util::Debug::LogD("MG_State: Program: QueryShaderStateIntVector called, shader=%u, pname=0x%X",
-                         shader, pname);
-    if (!ValidateShader_(shader)) {
-        MG_Util::Debug::LogE("MG_State: Program: QueryShaderStateIntVector error: invalid shader id %u", shader);
-        return GL_INVALID_VALUE;
-    }
-    auto& obj = shaders_[shader];
-
-    switch (pname) {
-        case GL_COMPILE_STATUS: *params = obj.compileStatus; break;
-        case GL_DELETE_STATUS:  *params = obj.markedForDeletion; break;
-        case GL_SHADER_TYPE:    *params = obj.type; break;
-        default:
-            MG_Util::Debug::LogE("MG_State: Program: QueryShaderStateIntVector error: invalid pname 0x%X", pname);
-            return GL_INVALID_ENUM;
-    }
-    MG_Util::Debug::LogD("MG_State: Program: QueryShaderStateIntVector success: value=%d", *params);
-    return GL_NO_ERROR;
-}
-
-template<typename T>
-GLenum ProgramState::SetUniform(GLuint program, GLint location, GLsizei count, const T* value, GLenum type) {
-    MG_Util::Debug::LogD("MG_State: Program: SetUniform called, program=%u, location=%d, count=%d, type=0x%X",
-                         program, location, count, type);
-    if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: SetUniform error: invalid program id %u", program);
-        return GL_INVALID_VALUE;
-    }
-    if (location < -1) {
-        MG_Util::Debug::LogE("MG_State: Program: SetUniform error: invalid location %d", location);
-        return GL_INVALID_VALUE;
-    }
-    if (count < 0) {
-        MG_Util::Debug::LogE("MG_State: Program: SetUniform error: invalid count %d", count);
-        return GL_INVALID_VALUE;
-    }
-    if (location == -1) {
-        MG_Util::Debug::LogW("MG_State: Program: SetUniform warning: location -1, no-op");
-        return GL_NO_ERROR;
-    }
-
-    ProgramObject& prog = programs_[program];
-    std::string uniformName;
-    for (const auto& pair : prog.uniformLocations) {
-        if (pair.second == location) {
-            uniformName = pair.first;
-            break;
-        }
-    }
-    if (uniformName.empty()) {
-        MG_Util::Debug::LogE("MG_State: Program: SetUniform error: no uniform at location %d in program %u",
-                             location, program);
-        return GL_INVALID_OPERATION;
-    }
-
-    UniformValue& uniform = prog.uniformValues[uniformName];
-    
-    uniform.setData(type, count, value);
-    MG_Util::Debug::LogD("MG_State: Program: SetUniform success: %s set", uniformName.c_str());
-    return GL_NO_ERROR;
-}
-
-template<typename T>
-GLenum ProgramState::SetUniformMatrix(GLuint program, GLint location, GLsizei count, GLboolean transpose, const T* value, GLenum matrixType) {
-    MG_Util::Debug::LogD("MG_State: Program: SetUniformMatrix called, program=%u, location=%d, count=%d, matrixType=0x%X",
-                         program, location, count, matrixType);
-    (void)transpose;
-    if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: SetUniformMatrix error: invalid program id %u", program);
-        return GL_INVALID_VALUE;
-    }
-    if (location < -1) {
-        MG_Util::Debug::LogE("MG_State: Program: SetUniformMatrix error: invalid location %d", location);
-        return GL_INVALID_VALUE;
-    }
-    if (count < 0) {
-        MG_Util::Debug::LogE("MG_State: Program: SetUniformMatrix error: invalid count %d", count);
-        return GL_INVALID_VALUE;
-    }
-    if (location == -1) {
-        MG_Util::Debug::LogW("MG_State: Program: SetUniformMatrix warning: location -1, no-op");
-        return GL_NO_ERROR;
-    }
-
-    ProgramObject& prog = programs_[program];
-    std::string uniformName;
-    for (const auto& pair : prog.uniformLocations) {
-        if (pair.second == location) {
-            uniformName = pair.first;
-            break;
-        }
-    }
-    if (uniformName.empty()) {
-        MG_Util::Debug::LogE("MG_State: Program: SetUniformMatrix error: no uniform at location %d in program %u",
-                             location, program);
-        return GL_INVALID_OPERATION;
-    }
-
-    UniformValue& uniform = prog.uniformValues[uniformName];
-    uniform.setData(matrixType, count, value);
-    MG_Util::Debug::LogD("MG_State: Program: SetUniformMatrix success: %s set", uniformName.c_str());
-    return GL_NO_ERROR;
-}
-
-#define IMPLEMENT_UNIFORM_FUNCTIONS(type, suffix, vecType)                               \
-void ProgramState::UpdateUniform##suffix##1(GLint location, type v0) {                   \
-    MG_Util::Debug::LogD("MG_State: Program: UpdateUniform" #suffix "1 called, location=%d", location); \
-    SetUniform<type>(currentProgram_, location, 1, &v0, vecType);                        \
-}                                                                                        \
-void ProgramState::UpdateUniform##suffix##2(GLint location, type v0, type v1) {          \
-    type values[2] = {v0, v1};                                                           \
-    MG_Util::Debug::LogD("MG_State: Program: UpdateUniform" #suffix "2 called, location=%d", location); \
-    SetUniform<type>(currentProgram_, location, 1, values, vecType);                     \
-}                                                                                        \
-void ProgramState::UpdateUniform##suffix##3(GLint location, type v0, type v1, type v2) { \
-    type values[3] = {v0, v1, v2};                                                       \
-    MG_Util::Debug::LogD("MG_State: Program: UpdateUniform" #suffix "3 called, location=%d", location); \
-    SetUniform<type>(currentProgram_, location, 1, values, vecType);                     \
-}                                                                                        \
-void ProgramState::UpdateUniform##suffix##4(GLint location, type v0, type v1, type v2, type v3) { \
-    type values[4] = {v0, v1, v2, v3};                                                   \
-    MG_Util::Debug::LogD("MG_State: Program: UpdateUniform" #suffix "4 called, location=%d", location); \
-    SetUniform<type>(currentProgram_, location, 1, values, vecType);                     \
-    } \
-void ProgramState::UpdateUniform##suffix##Vector1(GLint location, GLsizei count, const type* value) { \
-    MG_Util::Debug::LogD("MG_State: Program: UpdateUniform" #suffix "Vector1 called, location=%d, count=%d", location, count); \
-    SetUniform<type>(currentProgram_, location, count, value, vecType);                  \
-    } \
-void ProgramState::UpdateUniform##suffix##Vector2(GLint location, GLsizei count, const type* value) { \
-    MG_Util::Debug::LogD("MG_State: Program: UpdateUniform" #suffix "Vector2 called, location=%d, count=%d", location, count); \
-    SetUniform<type>(currentProgram_, location, count, value, vecType);              \
-    } \
-void ProgramState::UpdateUniform##suffix##Vector3(GLint location, GLsizei count, const type* value) { \
-    MG_Util::Debug::LogD("MG_State: Program: UpdateUniform" #suffix "Vector3 called, location=%d, count=%d", location, count); \
-    SetUniform<type>(currentProgram_, location, count, value, vecType);              \
-    } \
-void ProgramState::UpdateUniform##suffix##Vector4(GLint location, GLsizei count, const type* value) { \
-    MG_Util::Debug::LogD("MG_State: Program: UpdateUniform" #suffix "Vector4 called, location=%d, count=%d", location, count); \
-    SetUniform<type>(currentProgram_, location, count, value, vecType);              \
-    }
-
-IMPLEMENT_UNIFORM_FUNCTIONS(GLfloat, Float, GL_FLOAT_VEC4)
-IMPLEMENT_UNIFORM_FUNCTIONS(GLint, Int, GL_INT_VEC4)
-IMPLEMENT_UNIFORM_FUNCTIONS(GLuint, UInt, GL_UNSIGNED_INT_VEC4)
-IMPLEMENT_UNIFORM_FUNCTIONS(GLboolean, Bool, GL_BOOL_VEC4)
-#undef IMPLEMENT_UNIFORM_FUNCTIONS
-
-#define IMPLEMENT_MATRIX_FUNCTIONS(suffix, matrixType) \
-void ProgramState::UpdateUniformMatrix##suffix##Vector(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value) { \
-    MG_Util::Debug::LogD("MG_State: Program: UpdateUniformMatrix" #suffix "Vector called, location=%d, count=%d", location, count); \
-    SetUniformMatrix<GLfloat>(currentProgram_, location, count, transpose, value, matrixType); \
-}
-
-IMPLEMENT_MATRIX_FUNCTIONS(2x2, GL_FLOAT_MAT2)
-IMPLEMENT_MATRIX_FUNCTIONS(3x3, GL_FLOAT_MAT3)
-IMPLEMENT_MATRIX_FUNCTIONS(4x4, GL_FLOAT_MAT4)
-IMPLEMENT_MATRIX_FUNCTIONS(2x3, GL_FLOAT_MAT2x3)
-IMPLEMENT_MATRIX_FUNCTIONS(2x4, GL_FLOAT_MAT2x4)
-IMPLEMENT_MATRIX_FUNCTIONS(3x2, GL_FLOAT_MAT3x2)
-IMPLEMENT_MATRIX_FUNCTIONS(3x4, GL_FLOAT_MAT3x4)
-IMPLEMENT_MATRIX_FUNCTIONS(4x2, GL_FLOAT_MAT4x2)
-IMPLEMENT_MATRIX_FUNCTIONS(4x3, GL_FLOAT_MAT4x3)
-#undef IMPLEMENT_MATRIX_FUNCTIONS
-
-GLint ProgramState::QueryProgramUniformLocation(GLuint program, const GLchar* name) {
-    MG_Util::Debug::LogD("MG_State: Program: QueryProgramUniformLocation called, program=%u, name=%s", program, name);
-    if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: QueryProgramUniformLocation error: invalid program id %u", program);
-        return -1;
-    }
-    auto& prog = programs_[program];
-    auto it = prog.uniformLocations.find(name);
-    if (it != prog.uniformLocations.end()) {
-        GLint loc = it->second;
-        MG_Util::Debug::LogD("MG_State: Program: QueryProgramUniformLocation success: %s -> %d", name, loc);
-        return loc;
-    }
-    MG_Util::Debug::LogW("MG_State: Program: QueryProgramUniformLocation warning: name '%s' not found", name);
-    return -1;
-}
-
-bool ProgramState::SetProgramStatus(GLuint program, GLboolean status) {
-    MG_Util::Debug::LogD("MG_State: Program: SetProgramStatus called, program=%u, status=%d", program, status);
-    if (!ValidateProgram_(program)) {
-        MG_Util::Debug::LogE("MG_State: Program: SetProgramStatus error: invalid program id %u", program);
-        return false;
-    }
-    auto& prog = programs_[program];
-    if (prog.linked.getValue() != UncertainBool::Unknown) {
-        MG_Util::Debug::LogW("MG_State: Program: SetProgramStatus warning: link state already known");
-        return false;
-    }
-    prog.linked = (status == GL_TRUE) ? UncertainBool::True : UncertainBool::False;
-    prog.linkStatus = status;
-    MG_Util::Debug::LogD("MG_State: Program: SetProgramStatus success, status=%d", status);
-    return true;
-}
-
-GLuint ProgramState::GetCurrentProgram() const {
-    MG_Util::Debug::LogD("MG_State: Program: GetCurrentProgram called, returning %u", currentProgram_);
-    return currentProgram_;
-}
-
-ShaderObject ProgramState::GetShaderObject(GLuint shader) const {
-    MG_Util::Debug::LogD("MG_State: Program: GetShaderObject called, shader=%u", shader);
-    auto it = shaders_.find(shader);
-    if (it == shaders_.end()) {
-        MG_Util::Debug::LogW("MG_State: Program: GetShaderObject warning: invalid shader id %u", shader);
-        return ShaderObject();
-    }
-    MG_Util::Debug::LogD("MG_State: Program: GetShaderObject success, returning object");
-    return it->second;
-}
-
-ProgramObject ProgramState::GetProgramObject(GLuint program) const {
-    MG_Util::Debug::LogD("MG_State: Program: GetProgramObject called, program=%u", program);
-    auto it = programs_.find(program);
-    if (it == programs_.end()) {
-        MG_Util::Debug::LogW("MG_State: Program: GetProgramObject warning: invalid program id %u", program);
-        return ProgramObject();
-    }
-    MG_Util::Debug::LogD("MG_State: Program: GetProgramObject success, returning object");
-    return it->second;
-}
-
-bool ProgramState::ValidateProgram_(GLuint program) {
-    bool ok = programs_.count(program) && !programs_[program].markedForDeletion;
-    MG_Util::Debug::LogD("MG_State: Program: ValidateProgram_ called, program=%u, result=%d", program, ok);
-    return ok;
-}
-
-void ProgramState::CleanupShaders_() {
-    MG_Util::Debug::LogD("MG_State: Program: CleanupShaders_ start");
-    auto it = shaders_.begin();
-    while (it != shaders_.end()) {
-        if (it->second.markedForDeletion) {
-            bool inUse = false;
-            for (auto& [progId, program] : programs_) {
-                if (std::find(program.attachedShaders.begin(),
-                              program.attachedShaders.end(), it->first) != program.attachedShaders.end()) {
-                    inUse = true;
-                    break;
-                }
-            }
-            if (!inUse) {
-                MG_Util::Debug::LogD("MG_State: Program: CleanupShaders_ deleting shader %u", it->first);
-                freeShaderIds_.insert(it->first);
-                it = shaders_.erase(it);
-                continue;
-            }
-        }
-        ++it;
-    }
-    MG_Util::Debug::LogD("MG_State: Program: CleanupShaders_ end");
-}
-
-// UniformValue
-template<typename T>
-void UniformValue::setData(GLenum uniformType, GLsizei count_, const T* values) {
-    MG_Util::Debug::LogD("MG_State: Program: UniformValue::setData called, type=0x%X, count=%d", uniformType, count_);
-    //type = uniformType;
-    count = count_;
-
-    floatData.clear();
-    intData.clear();
-    uintData.clear();
-    boolData.clear();
-
-    switch (type) {
-        case GL_FLOAT:                           numElements = count_ * 1; break;
-        case GL_FLOAT_VEC2:                      numElements = count_ * 2; break;
-        case GL_FLOAT_VEC3:                      numElements = count_ * 3; break;
-        case GL_FLOAT_VEC4:                      numElements = count_ * 4; break;
-        case GL_INT:                             numElements = count_ * 1; break;
-        case GL_INT_VEC2:                        numElements = count_ * 2; break;
-        case GL_INT_VEC3:                        numElements = count_ * 3; break;
-        case GL_INT_VEC4:                        numElements = count_ * 4; break;
-        case GL_UNSIGNED_INT:                    numElements = count_ * 1; break;
-        case GL_UNSIGNED_INT_VEC2:               numElements = count_ * 2; break;
-        case GL_UNSIGNED_INT_VEC3:               numElements = count_ * 3; break;
-        case GL_UNSIGNED_INT_VEC4:               numElements = count_ * 4; break;
-        case GL_BOOL:                            numElements = count_ * 1; break;
-        case GL_BOOL_VEC2:                       numElements = count_ * 2; break;
-        case GL_BOOL_VEC3:                       numElements = count_ * 3; break;
-        case GL_BOOL_VEC4:                       numElements = count_ * 4; break;
-        case GL_FLOAT_MAT2:                      numElements = count_ * 4; break; // 2x2
-        case GL_FLOAT_MAT3:                      numElements = count_ * 9; break; // 3x3
-        case GL_FLOAT_MAT4:                      numElements = count_ * 16; break; // 4x4
-        case GL_FLOAT_MAT2x3:                    numElements = count_ * 6; break; // 2x3
-        case GL_FLOAT_MAT2x4:                    numElements = count_ * 8; break; // 2x4
-        case GL_FLOAT_MAT3x2:                    numElements = count_ * 6; break; // 3x2
-        case GL_FLOAT_MAT3x4:                    numElements = count_ * 12; break; // 3x4
-        case GL_FLOAT_MAT4x2:                    numElements = count_ * 8; break; // 4x2
-        case GL_FLOAT_MAT4x3:                    numElements = count_ * 12; break; // 4x3
-        case GL_SAMPLER_1D:
-        case GL_SAMPLER_2D:
-        case GL_SAMPLER_3D:
-        case GL_SAMPLER_CUBE:
-        case GL_SAMPLER_1D_SHADOW:
-        case GL_SAMPLER_2D_SHADOW:
-        case GL_SAMPLER_CUBE_SHADOW:
-        case GL_SAMPLER_1D_ARRAY:
-        case GL_SAMPLER_2D_ARRAY:
-        case GL_SAMPLER_1D_ARRAY_SHADOW:
-        case GL_SAMPLER_2D_ARRAY_SHADOW:
-        case GL_SAMPLER_BUFFER:
-        case GL_SAMPLER_2D_MULTISAMPLE:
-        case GL_SAMPLER_2D_MULTISAMPLE_ARRAY:    numElements = count_ * 1; break;
-        default:
-            MG_Util::Debug::LogW("MG_State: Program: UniformValue::setData warning: unsupported type 0x%X for numElements", uniformType);
-            numElements = 1;
-            return;
-    }
-
-    for (GLsizei i = 0; i < numElements; ++i) {
-        switch (uniformType) {
-            case GL_FLOAT:
-            case GL_FLOAT_VEC2:
-            case GL_FLOAT_VEC3:
-            case GL_FLOAT_VEC4:
-            case GL_FLOAT_MAT2:
-            case GL_FLOAT_MAT3:
-            case GL_FLOAT_MAT4:
-            case GL_FLOAT_MAT2x3:
-            case GL_FLOAT_MAT2x4:
-            case GL_FLOAT_MAT3x2:
-            case GL_FLOAT_MAT3x4:
-            case GL_FLOAT_MAT4x2:
-            case GL_FLOAT_MAT4x3:
-                floatData.push_back(static_cast<GLfloat>(values[i]));
-                break;
-            case GL_INT:
-            case GL_INT_VEC2:
-            case GL_INT_VEC3:
-            case GL_INT_VEC4:
-            case GL_SAMPLER_1D:
-            case GL_SAMPLER_2D:
-            case GL_SAMPLER_3D:
-            case GL_SAMPLER_CUBE:
-            case GL_SAMPLER_1D_SHADOW:
-            case GL_SAMPLER_2D_SHADOW:
-            case GL_SAMPLER_CUBE_SHADOW:
-            case GL_SAMPLER_1D_ARRAY:
-            case GL_SAMPLER_2D_ARRAY:
-            case GL_SAMPLER_1D_ARRAY_SHADOW:
-            case GL_SAMPLER_2D_ARRAY_SHADOW:
-            case GL_SAMPLER_BUFFER:
-            case GL_SAMPLER_2D_MULTISAMPLE:
-            case GL_SAMPLER_2D_MULTISAMPLE_ARRAY:
-                intData.push_back(static_cast<GLint>(values[i]));
-                break;
-            case GL_UNSIGNED_INT:
-            case GL_UNSIGNED_INT_VEC2:
-            case GL_UNSIGNED_INT_VEC3:
-            case GL_UNSIGNED_INT_VEC4:
-                uintData.push_back(static_cast<GLuint>(values[i]));
-                break;
-            case GL_BOOL:
-            case GL_BOOL_VEC2:
-            case GL_BOOL_VEC3:
-            case GL_BOOL_VEC4:
-                boolData.push_back(values[i] ? GL_TRUE : GL_FALSE);
-                break;
-            default:
-                MG_Util::Debug::LogW("MG_State: Program: UniformValue::setData warning: unsupported type 0x%X", uniformType);
-                break;
-        }
-    }
-    MG_Util::Debug::LogD("MG_State: Program: UniformValue::setData end");
-}

MG/MG_GL/State/Program/ProgramState.h

@@ -1,126 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/1.
-//
-
-#ifndef MOBILEGL_PROGRAMSTATE_H
-#define MOBILEGL_PROGRAMSTATE_H
-#define MOBILEGL_GLSTATE_H
-#define MOBILEGL_PROGRAM_DEBUGTOOL_H
-#define MOBILEGL_GLSLTOOL_H
-
-#include "../../../Includes.h"
-
-struct ShaderObject {
-    GLenum type;
-    std::string source;
-    std::vector<unsigned int> compiledSpirv;
-    UncertainBool compiled;
-    GLint compileStatus;
-    std::string infoLog;
-    bool markedForDeletion;
-};
-
-struct UniformValue {
-    GLenum type;
-    std::vector<GLfloat> floatData;
-    std::vector<GLint> intData;
-    std::vector<GLuint> uintData;
-    std::vector<GLboolean> boolData;
-    GLsizei count;
-    GLsizei numElements;
-
-    UniformValue() : type(0), count(0) {}
-
-    template<typename T>
-    void setData(GLenum uniformType, GLsizei count_, const T* values);
-};
-
-struct ProgramObject {
-    std::vector<GLuint> attachedShaders;
-    UncertainBool linked;
-    bool dirty;
-    GLint linkStatus;
-    std::string infoLog;
-    ankerl::unordered_map<std::string, GLint> attribBindings;
-    ankerl::unordered_map<std::string, GLint> attribLocations;
-    ankerl::unordered_map<std::string, GLint> uniformLocations;
-    ankerl::unordered_map<std::string, UniformValue> uniformValues;
-    bool markedForDeletion;
-};
-
-class ProgramState {
-public:
-    ankerl::unordered_map<GLuint, ShaderObject> shaders_;
-    ankerl::unordered_map<GLuint, ProgramObject> programs_;
-    std::set<GLuint> freeShaderIds_;
-    std::set<GLuint> freeProgramIds_;
-    GLuint lastShaderId_ = 0;
-    GLuint lastProgramId_ = 0;
-    GLuint currentProgram_ = 0;
-
-    ProgramState();
-    ~ProgramState();
-    
-    // Return: the validity of the operation, according to OpenGL 3 standard
-    GLenum CreateShader(GLenum type, GLuint* shader);
-    GLenum CreateProgram(GLuint* program);
-    GLenum DeleteShader(GLuint shader);
-    GLenum DeleteProgram(GLuint program);
-    GLenum LinkShaderToProgram(GLuint program, GLuint shader);
-    GLenum UploadShaderSource(GLuint shader, GLsizei count, const GLchar** string, const GLint* length);
-    GLenum BuildShaderStage(GLuint shader);
-    GLenum FinalizeProgramPipeline(GLuint program);
-    GLenum ActivateRenderProgram(GLuint program);
-    GLenum DefineProgramAttributeBinding(GLuint program, GLuint index, const GLchar* name);
-    GLint QueryProgramAttributeBinding(GLuint program, const GLchar* name);
-    GLint QueryProgramUniformLocation(GLuint program, const GLchar* name);
-    GLenum QueryProgramStateIntVector(GLuint program, GLenum pname, GLint* params);
-    GLenum QueryShaderStateIntVector(GLuint shader, GLenum pname, GLint* params);
-
-    template<typename T>
-    GLenum SetUniform(GLuint program, GLint location, GLsizei count, const T* value, GLenum type);
-
-    template<typename T>
-    GLenum SetUniformMatrix(GLuint program, GLint location, GLsizei count, GLboolean transpose, const T* value, GLenum matrixType);
-    
-#define DECLARE_UNIFORM_FUNCTIONS(type, suffix, vecType) \
-    void UpdateUniform##suffix##1(GLint location, type v0); \
-    void UpdateUniform##suffix##2(GLint location, type v0, type v1); \
-    void UpdateUniform##suffix##3(GLint location, type v0, type v1, type v2); \
-    void UpdateUniform##suffix##4(GLint location, type v0, type v1, type v2, type v3); \
-    void UpdateUniform##suffix##Vector1(GLint location, GLsizei count, const type* value); \
-    void UpdateUniform##suffix##Vector2(GLint location, GLsizei count, const type* value); \
-    void UpdateUniform##suffix##Vector3(GLint location, GLsizei count, const type* value); \
-    void UpdateUniform##suffix##Vector4(GLint location, GLsizei count, const type* value);
-    DECLARE_UNIFORM_FUNCTIONS(GLfloat, Float, GL_FLOAT)
-    DECLARE_UNIFORM_FUNCTIONS(GLint, Int, GL_INT)
-    DECLARE_UNIFORM_FUNCTIONS(GLuint, UInt, GL_UNSIGNED_INT)
-    DECLARE_UNIFORM_FUNCTIONS(GLboolean, Bool, GL_BOOL)
-#undef DECLARE_UNIFORM_FUNCTIONS
-#define DECLARE_MATRIX_FUNCTIONS(suffix, matrixType) \
-    void UpdateUniformMatrix##suffix##Vector(GLint location, GLsizei count, GLboolean transpose, const GLfloat* value);
-    DECLARE_MATRIX_FUNCTIONS(2x2, GL_FLOAT_MAT2)
-    DECLARE_MATRIX_FUNCTIONS(3x3, GL_FLOAT_MAT3)
-    DECLARE_MATRIX_FUNCTIONS(4x4, GL_FLOAT_MAT4)
-    DECLARE_MATRIX_FUNCTIONS(2x3, GL_FLOAT_MAT2x3)
-    DECLARE_MATRIX_FUNCTIONS(2x4, GL_FLOAT_MAT2x4)
-    DECLARE_MATRIX_FUNCTIONS(3x2, GL_FLOAT_MAT3x2)
-    DECLARE_MATRIX_FUNCTIONS(3x4, GL_FLOAT_MAT3x4)
-    DECLARE_MATRIX_FUNCTIONS(4x2, GL_FLOAT_MAT4x2)
-    DECLARE_MATRIX_FUNCTIONS(4x3, GL_FLOAT_MAT4x3)
-#undef DECLARE_MATRIX_FUNCTIONS
-    
-    ProgramObject GetProgramObject(GLuint program) const;
-    ShaderObject GetShaderObject(GLuint program) const;
-    GLuint GetCurrentProgram() const;
-    bool SetProgramStatus(GLuint program, GLboolean status);
-    bool SetShaderStatus(GLuint shader, GLboolean status);
-
-private:
-    bool ValidateShader_(GLuint shader);
-    bool ValidateProgram_(GLuint program);
-    void CleanupShaders_();
-    GLint GetUniformLocation_(GLuint program, GLint location, const GLchar* name);
-};
-
-#endif // MOBILEGL_PROGRAMSTATE_H

MG/MG_GL/State/Program/ShaderObject.cpp

@@ -1,139 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/3.
-//
-
-#include "ShaderObject.h"
-
-// Re-Include Includes.h, cuz of the absence of Program/DebugTool.h and Program/GLSLTool.cpp.
-#undef MOBILEGL_GLSLTOOL_H
-#undef MOBILEGL_PROGRAM_DEBUGTOOL_H
-#include "../../../Includes.h"
-
-GLenum ProgramState::CreateShader(GLenum type, GLuint* shader) {
-    MG_Util::Debug::LogD("MG_State: Program: CreateShader called, type=0x%X, shader ptr=%p", type, shader);
-    if (!shader) {
-        MG_Util::Debug::LogE("MG_State: Program: CreateShader error: shader pointer is null");
-        return GL_INVALID_VALUE;
-    }
-    if (type != GL_VERTEX_SHADER && type != GL_FRAGMENT_SHADER) {
-        MG_Util::Debug::LogE("MG_State: Program: CreateShader error: invalid shader type 0x%X", type);
-        return GL_INVALID_ENUM;
-    }
-
-    GLuint id = freeShaderIds_.empty() ? ++lastShaderId_ : *freeShaderIds_.begin();
-    if (!freeShaderIds_.empty())
-        freeShaderIds_.erase(freeShaderIds_.begin());
-
-    ShaderObject obj;
-    obj.type = type;
-    obj.compiled = {UncertainBool::Unknown, UncertainBool::False};
-    obj.compiledSpirv = {};
-    obj.markedForDeletion = false;
-    obj.compileStatus = GL_FALSE;
-    shaders_[id] = obj;
-    *shader = id;
-    MG_Util::Debug::LogD("MG_State: Program: CreateShader success, new shader id=%u", id);
-    return GL_NO_ERROR;
-}
-
-GLenum ProgramState::DeleteShader(GLuint shader) {
-    MG_Util::Debug::LogD("MG_State: Program: DeleteShader called, shader id=%u", shader);
-    if (!ValidateShader_(shader)) {
-        MG_Util::Debug::LogE("MG_State: Program: DeleteShader error: invalid shader id %u", shader);
-        return GL_INVALID_VALUE;
-    }
-    if (shaders_[shader].markedForDeletion) {
-        MG_Util::Debug::LogW("MG_State: Program: DeleteShader warning: shader %u already marked for deletion", shader);
-        return GL_NO_ERROR;
-    }
-
-    bool inUse = false;
-    for (auto& [progId, program] : programs_) {
-        if (std::find(program.attachedShaders.begin(),
-                      program.attachedShaders.end(), shader) != program.attachedShaders.end()) {
-            inUse = true;
-            break;
-        }
-    }
-    if (inUse) {
-        shaders_[shader].markedForDeletion = true;
-        MG_Util::Debug::LogD("MG_State: Program: DeleteShader info: shader %u marked for deferred deletion (in use)", shader);
-    } else {
-        shaders_.erase(shader);
-        // TODO: Prevent the object that uses a freeId from conflicting with legacy object in the backend.
-        //freeShaderIds_.insert(shader);
-        MG_Util::Debug::LogD("MG_State: Program: DeleteShader success: shader %u deleted immediately", shader);
-    }
-    return GL_NO_ERROR;
-}
-
-GLenum ProgramState::UploadShaderSource(GLuint shader, GLsizei count,
-                                        const GLchar** string, const GLint* length) {
-    MG_Util::Debug::LogD("MG_State: Program: UploadShaderSource called, shader id=%u, count=%d", shader, count);
-    if (!ValidateShader_(shader)) {
-        MG_Util::Debug::LogE("MG_State: Program: UploadShaderSource error: invalid shader id %u", shader);
-        return GL_INVALID_VALUE;
-    }
-    if (count < 0) {
-        MG_Util::Debug::LogE("MG_State: Program: UploadShaderSource error: negative count %d", count);
-        return GL_INVALID_VALUE;
-    }
-
-    std::string source;
-    for (GLsizei i = 0; i < count; ++i) {
-        const GLchar* str = string[i];
-        GLint len = (length && length[i] >= 0) ? length[i] : strlen(str);
-        source.append(str, len);
-    }
-    shaders_[shader].source = std::move(source);
-    MG_Util::Debug::LogD("MG_State: Program: UploadShaderSource success: source uploaded (length=%zu)", shaders_[shader].source.size());
-    return GL_NO_ERROR;
-}
-
-GLenum ProgramState::BuildShaderStage(GLuint shader) {
-    MG_Util::Debug::LogD("MG_State: Program: BuildShaderStage called, shader id=%u", shader);
-    if (!ValidateShader_(shader)) {
-        MG_Util::Debug::LogE("MG_State: Program: BuildShaderStage error: invalid shader id %u", shader);
-        return GL_INVALID_VALUE;
-    }
-    auto& obj = shaders_[shader];
-
-    std::string compilationLog;
-    auto spirv = MG_Util::Program::CompileGLSLToSPIRV(obj.type, obj.source, compilationLog);
-    if (spirv.empty()) {
-        obj.infoLog = "Shader compilation failed: " + compilationLog;
-        obj.compiled = UncertainBool::False;
-        obj.compileStatus = GL_FALSE;
-        MG_Util::Debug::LogE("MG_State: Program: BuildShaderStage error: %s", compilationLog.c_str());
-        return GL_INVALID_OPERATION;
-    }
-    obj.compiledSpirv = spirv;
-    obj.compiled = {UncertainBool::Unknown, UncertainBool::True};
-    obj.compileStatus = GL_TRUE;
-    obj.infoLog.clear();
-    MG_Util::Debug::LogD("MG_State: Program: BuildShaderStage success: shader %u compiled to SPIR-V (size=%zu bytes)", shader, spirv.size() * sizeof(unsigned));
-    return GL_NO_ERROR;
-}
-
-bool ProgramState::SetShaderStatus(GLuint shader, GLboolean status) {
-    MG_Util::Debug::LogD("MG_State: Program: SetShaderStatus called, shader id=%u, status=%d", shader, status);
-    if (!ValidateShader_(shader)) {
-        MG_Util::Debug::LogE("MG_State: Program: SetShaderStatus error: invalid shader id %u", shader);
-        return false;
-    }
-    auto& obj = shaders_[shader];
-    if (obj.compiled.getValue() != UncertainBool::Unknown) {
-        MG_Util::Debug::LogW("MG_State: Program: SetShaderStatus warning: shader %u status already set", shader);
-        return false;
-    }
-    obj.compiled = (status == GL_TRUE) ? UncertainBool::True : UncertainBool::False;
-    obj.compileStatus = status;
-    MG_Util::Debug::LogD("MG_State: Program: SetShaderStatus success: shader %u status=%d", shader, status);
-    return true;
-}
-
-bool ProgramState::ValidateShader_(GLuint shader) {
-    bool valid = shaders_.count(shader) && !shaders_[shader].markedForDeletion;
-    MG_Util::Debug::LogD("MG_State: Program: ValidateShader_ called, shader id=%u, result=%d", shader, valid);
-    return valid;
-}

MG/MG_GL/State/Program/ShaderObject.h

@@ -1,12 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/3.
-//
-
-#ifndef MOBILEGL_SHADEROBJECT_H
-#define MOBILEGL_SHADEROBJECT_H
-
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
-
-#endif //MOBILEGL_SHADEROBJECT_H

MG/MG_GL/State/Texture/TextureState.h

@@ -1,117 +0,0 @@
-//
-// Created by BZLZHH on 2025/4/4.
-//
-
-#ifndef MOBILEGL_TEXTURESTATE_H
-#define MOBILEGL_TEXTURESTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
-
-struct ComponentSizes {
-    GLint red = 0;  
-    GLint green = 0;
-    GLint blue = 0; 
-    GLint alpha = 0;
-    GLint depth = 0;
-    GLint stencil = 0;
-    bool isCompressed = false;
-};
-
-struct TextureParams {
-    template <typename K, typename V>
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
-    unordered_map<GLenum, GLfloat> texPropertiesFloat;
-    unordered_map<GLenum, GLint> texPropertiesInt;
-    struct MipmapLevel {
-        GLsizei width = 0;
-        GLsizei height = 0;
-        GLenum format = GL_RGBA;
-        GLenum internalFormat = GL_RGBA;
-        GLenum type = GL_UNSIGNED_BYTE;
-        std::vector<GLubyte> pixelData;
-        bool hasData = false;
-        bool dirty = false; // TODO: encapsulate this with an public API to RHI
-    };
-    unordered_map<GLint, MipmapLevel> mipmapData;
-};
-
-class TextureObject {
-public:
-    bool generated = false;
-    GLenum target = GL_NONE;
-    TextureParams params;
-    const void* data = nullptr;
-    bool IsImmutable() const;
-    uint64_t createTimestamp{};
-};
-
-class TextureUnitState {
-    template <typename K, typename V>
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
-private:
-    GLenum activeTarget = GL_TEXTURE_2D;
-    
-public:
-    unordered_map<GLenum, GLuint> boundTextures;
-    void Bind(GLenum target, GLuint texture);
-    GLuint GetBoundTexture(GLenum target);
-};
-
-class TextureState {
-    template <typename K, typename V>
-    using unordered_map = ankerl::unordered_dense::map<K, V>;
-private:
-
-    GLuint lastUsedID_ = 1;
-//    ankerl::unordered_set<GLuint> freeIDs_;
-    std::vector<GLuint> freeID_;
-
-    unordered_map<GLenum, TextureObject> proxyTextures_;
-    
-    static GLint GetUnpackParam_(GLenum pname);
-public:
-    TextureState();
-    
-    bool IsTextureGenerated(GLuint texture);
-    bool IsTexture(GLuint texture);
-    unordered_map<GLuint, TextureObject> textures;
-
-    // Return: the validity of the operation, according to OpenGL 3 standard
-    GLenum BindUnit(GLenum textureUnit);
-    GLenum Create(GLuint* texture);
-    GLenum CreateN(GLsizei n, GLuint* textures);
-    GLenum Bind(GLenum target, GLuint texture);
-    GLenum Upload2D(GLenum target, GLint level, GLint internalFormat,
-                    GLsizei width, GLsizei height, GLint border, GLenum format,
-                    GLenum type, const void* data);
-    GLenum UpdateRegion2D(GLenum target, GLint level, GLint xoffset,
-                          GLint yoffset, GLsizei width, GLsizei height, GLenum format,
-                          GLenum type, const GLvoid* data);
-    GLenum SetTexturePropertyInt(GLenum target, GLenum pname, GLint param);
-    GLenum SetTexturePropertyFloat(GLenum target, GLenum pname, GLfloat param);
-    GLenum Delete(GLuint texture);
-    GLenum DeleteN(GLsizei n, const GLuint* textures);
-    GLenum QueryLevelPropertyIntVector(GLenum target, GLint level, GLenum pname, GLint* params);
-
-    std::vector<TextureUnitState> textureUnits_;
-    GLuint activeTextureUnit_ = 0;
-private:
-    size_t CalculatePixelDataSize_(GLenum format, GLenum type, GLsizei width, GLsizei height);
-    void InvalidateTextureInAllUnits_(GLuint texture);
-    static ComponentSizes GetComponentSize_s_(GLenum internalFormat);
-    size_t CalculateBytesPerPixel_(GLenum format, GLenum type);
-    static size_t GetComponentSize_(GLenum type);
-    void SwapBytesForTexture_(GLenum format, GLenum type, const GLubyte* src, GLubyte* dst, GLsizei width);
-    static void ReverseBitOrder_(const GLubyte* src, GLubyte* dst, size_t size);
-    static GLubyte ReverseBits_(GLubyte b);
-    void SwapPixelBytes_(GLenum format, GLenum type, const GLubyte* src, GLubyte* dst);
-    GLenum CheckUploadingTexture2DValidity_(GLenum target, GLint level, GLint internalFormat,
-                                            GLsizei width, GLsizei height, GLint border, GLenum format,
-                                            GLenum type, const void* data);
-    GLenum CheckUpdatingTextureRegion2DValidity_(GLenum target, GLint level, GLint xoffset,
-                                                 GLint yoffset, GLsizei width, GLsizei height, GLenum format,
-                                                 GLenum type, const GLvoid* data);
-};
-
-#endif //MOBILEGL_TEXTURESTATE_H

MG/MG_GL/State/VertexArray/VertexArrayState.cpp

@@ -1,162 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/1.
-//
-
-// TODO: Add more gl error check for vertex array state manager.
-
-#include "VertexArrayState.h"
-
-VertexArrayState::VertexArrayState() {
-    vaos_[0];
-}
-
-GLenum VertexArrayState::GenName(GLuint *array) {
-    MG_Util::Debug::LogD("MG_State: VAO: GenName");
-    if (!array)
-        return GL_INVALID_VALUE;
-    GLuint id;
-    if (freeIds_.empty()) {
-        id = ++lastId_;
-    } else {
-        id = *freeIds_.begin();
-        freeIds_.erase(freeIds_.begin());
-    }
-    *array = id;
-    MG_Util::Debug::LogD("MG_State: VAO: Generated new name %d", id);
-    return GL_NO_ERROR;
-}
-
-GLenum VertexArrayState::GenNameN(GLsizei n, GLuint* arrays) {
-    MG_Util::Debug::LogD("MG_State: VAO: GenNameN called with n=%d", n);
-    if (n < 0)
-        return GL_INVALID_VALUE;
-    for (GLsizei i = 0; i < n; ++i) {
-        GLenum result = GenName(&arrays[i]);
-        if (result != GL_NO_ERROR) {
-            MG_Util::Debug::LogE("MG_State: VAO: GenNameN failed at index %d with error 0x%x", i, result);
-            return result;
-        }
-    }
-    MG_Util::Debug::LogD("MG_State: VAO: GenNameN created %d names", n);
-    return GL_NO_ERROR;
-}
-
-GLenum VertexArrayState::Create(GLuint* array) {
-    if (array == nullptr) return GL_INVALID_VALUE;
-
-    GLuint id = freeIds_.empty() ? ++lastId_ : *freeIds_.begin();
-    if (!freeIds_.empty()) {
-        freeIds_.erase(freeIds_.begin());
-    }
-
-    *array = id;
-    vaos_[id].generated = true;
-    return GL_NO_ERROR;
-}
-
-GLenum VertexArrayState::CreateN(GLsizei n, GLuint* arrays) {
-    if (n < 0) {
-        return GL_INVALID_VALUE; 
-    }
-
-    if (n > 0 && arrays == nullptr) {
-        return GL_INVALID_VALUE;
-    }
-
-    for (GLsizei i = 0; i < n; ++i) {
-        if (GLenum error = Create(&arrays[i]); error != GL_NO_ERROR) {
-            return error;
-        }
-    }
-    return GL_NO_ERROR;
-}
-
-GLenum VertexArrayState::Bind(GLuint array) {
-    MG_Util::Debug::LogD("MG_State: VAO: Bind called for %u", array);
-    if (array != 0) {
-        if (!ValidateGeneratedName(array)) {
-            MG_Util::Debug::LogE("MG_State: VAO: Bind invalid name %u", array);
-            return GL_INVALID_OPERATION;
-        }
-        auto& vao = vaos_[array];
-        if (!vao.generated) {
-            MG_Util::Debug::LogD("MG_State: VAO: Creating VAO %u during bind", array);
-            vao.generated = true;
-        }
-    }
-    currentVao_ = array;
-    MG_Util::Debug::LogD("MG_State: VAO: Bound to %u", array);
-    return GL_NO_ERROR;
-}
-
-bool VertexArrayState::ValidateGeneratedName(GLuint array) {
-    if (array == 0)
-        return true;
-    bool inFreeList = freeIds_.count(array) > 0;
-    bool valid = (array <= lastId_) && !inFreeList;
-    MG_Util::Debug::LogD("MG_State: VAO: ValidateGeneratedName %u: %d", array, valid);
-    return valid;
-}
-
-bool VertexArrayState::ValidateAllocatedHandle(GLuint array) {
-    bool exists = vaos_.count(array) && vaos_[array].generated;
-    MG_Util::Debug::LogD("MG_State: VAO: ValidateAllocatedHandle %u: %d", array, exists);
-    return exists;
-}
-
-GLenum VertexArrayState::EnableAttrib(GLuint index) {
-    if (!ValidateAllocatedHandle(currentVao_))
-        return GL_INVALID_OPERATION;
-    if (index >= GL_MAX_VERTEX_ATTRIBS) return GL_INVALID_VALUE;
-    GetCurrentVAO()->attribs[index].enabled = true;
-    MG_Util::Debug::LogD("Attrib vaos_[%u].attribs[%u].enabled = %d", currentVao_, index, vaos_[currentVao_].attribs[index].enabled);
-
-    GetCurrentVAO()->attribDirty = true;
-    return GL_NO_ERROR;
-}
-
-GLenum VertexArrayState::DisableAttrib(GLuint index) {
-    if (!ValidateAllocatedHandle(currentVao_))
-        return GL_INVALID_OPERATION;
-    if (index >= GL_MAX_VERTEX_ATTRIBS) return GL_INVALID_VALUE;
-    GetCurrentVAO()->attribs[index].enabled = false;
-    MG_Util::Debug::LogD("Attrib vaos_[%u].attribs[%u].enabled = %d", currentVao_, index, vaos_[currentVao_].attribs[index].enabled);
-
-    GetCurrentVAO()->attribDirty = true;
-    return GL_NO_ERROR;
-}
-
-GLenum VertexArrayState::SetAttribPointer(GLuint index, GLint size, GLenum type,
-                                          GLboolean normalized, GLsizei stride,
-                                          const void* pointer, bool isInteger,
-                                          GLuint currentArrayBuffer) {
-    if (!ValidateAllocatedHandle(currentVao_))
-        return GL_INVALID_OPERATION;
-    if (index >= GL_MAX_VERTEX_ATTRIBS) return GL_INVALID_VALUE;
-
-    VertexAttribState state;
-    state.size = size;
-    state.type = type;
-    state.normalized = normalized;
-    state.stride = stride;
-    state.pointer = pointer;
-    state.buffer = currentArrayBuffer;
-    state.isInteger = isInteger;
-    if (vaos_[currentVao_].attribs.count(index) && vaos_[currentVao_].attribs[index].enabled)
-        state.enabled = true;
-
-    vaos_[currentVao_].attribs[index] = state;
-
-    GetCurrentVAO()->attribDirty = true;
-    return GL_NO_ERROR;
-}
-
-GLuint VertexArrayState::GetBoundElementBuffer() {
-    auto it = vaos_.find(currentVao_);
-    return (it != vaos_.end()) ? it->second.elementBuffer : 0;
-}
-
-VertexArrayObject* VertexArrayState::GetCurrentVAO() {
-    auto it = vaos_.find(currentVao_);
-    return (it != vaos_.end()) ? &it->second : &vaos_.at(0);
-}

MG/MG_GL/State/VertexArray/VertexArrayState.h

@@ -1,59 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/1.
-//
-
-#ifndef MOBILEGL_VERTEXARRAYSTATE_H
-#define MOBILEGL_VERTEXARRAYSTATE_H
-#define MOBILEGL_GLSTATE_H
-
-#include "../../../Includes.h"
-
-struct VertexAttribState {
-    bool enabled;
-    GLint size = 4;
-    GLenum type = GL_FLOAT;
-    GLboolean normalized = GL_FALSE;
-    GLsizei stride = 0;
-    const GLvoid* pointer = nullptr;
-    GLuint buffer = 0;
-    bool isInteger = false;
-};
-
-struct VertexArrayObject {
-    bool generated = false;
-    bool attribDirty = false;
-    bool eboDirty = false;
-    GLuint elementBuffer = 0;
-    ankerl::unordered_map<GLuint, VertexAttribState> attribs;
-};
-
-class VertexArrayState {
-public:
-    VertexArrayState();
-    
-    // Return: the validity of the operation, according to OpenGL 3 standard
-    GLenum GenName(GLuint* array);
-    GLenum GenNameN(GLsizei n, GLuint* arrays);
-    GLenum Create(GLuint* array);
-    GLenum CreateN(GLsizei n, GLuint* arrays);
-    GLenum Bind(GLuint array);
-    GLenum EnableAttrib(GLuint index);
-    GLenum DisableAttrib(GLuint index);
-    GLenum SetAttribPointer(GLuint index, GLint size, GLenum type,
-                            GLboolean normalized, GLsizei stride,
-                            const void* pointer, bool isInteger,
-                            GLuint currentArrayBuffer);
-    
-    GLuint GetBoundElementBuffer();
-    VertexArrayObject* GetCurrentVAO();
-    bool ValidateGeneratedName(GLuint array);
-    bool ValidateAllocatedHandle(GLuint array);
-
-    GLuint currentVao_ = 0;
-    ankerl::unordered_map<GLuint, VertexArrayObject> vaos_;
-private:
-    std::set<GLuint> freeIds_;
-    GLuint lastId_ = 0;
-};
-
-#endif //MOBILEGL_VERTEXARRAYSTATE_H

MG/MG_Include/UncertainBool.hpp

@@ -1,127 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/3.
-//
-
-#pragma once
-#include <initializer_list>
-#include <stdexcept>
-#include <utility>
-
-class UncertainBool {
-public:
-    enum Value { False = 0, True = 1, Unknown = 2 };
-
-    UncertainBool() : value_(False), default_(false) {}
-
-    explicit UncertainBool(bool b) : value_(b ? True : False), default_(false) {}
-
-    UncertainBool(Value val, bool def) : value_(val), default_(def) {
-        validateValue();
-    }
-    
-    UncertainBool(bool val, bool def) : value_(val ? True : False), default_(def) {
-        validateValue();
-    }
-    
-    UncertainBool& operator=(Value val) {
-        value_ = val;
-        validateValue();
-        return *this;
-    }
-    
-    UncertainBool& operator=(bool b) {
-        value_ = b ? True : False;
-        return *this;
-    }
-    
-    UncertainBool& operator=(std::initializer_list<std::pair<bool, bool>> init) {
-        if (init.size() != 1) throw std::invalid_argument("Invalid initializer");
-        value_ = init.begin()->first ? True : False;
-        default_ = init.begin()->second;
-        return *this;
-    }
-    
-    explicit operator bool() const {
-        return toBool();
-    }
-    
-    bool toBool() const {
-        if (value_ == True)       return true;
-        else if (value_ == False) return false;
-        else                      return default_;
-    }
-
-    UncertainBool operator!() const {
-        return {static_cast<bool>(*this) ? False : True, false};
-    }
-
-    bool operator==(const UncertainBool& rhs) const {
-        return static_cast<bool>(*this) == static_cast<bool>(rhs);
-    }
-    bool operator!=(const UncertainBool& rhs) const { return !(*this == rhs); }
-
-    friend UncertainBool operator&&(const UncertainBool& lhs, const UncertainBool& rhs) {
-        bool actualDefault = lhs.default_ && rhs.default_;
-        if(lhs.value_ == False || rhs.value_ == False) return {False,actualDefault};
-        else if(lhs.value_ == True && rhs.value_ == True) return {True,actualDefault};
-        else return {Unknown, actualDefault};
-    }
-
-    friend UncertainBool operator||(const UncertainBool& lhs, const UncertainBool& rhs) {
-        bool actualDefault = lhs.default_ || rhs.default_;
-        if(lhs.value_ == True || rhs.value_ == True) return {True,actualDefault};
-        else if(lhs.value_ == False && rhs.value_ == False) return {False,actualDefault};
-        else return {Unknown, actualDefault};
-    }
-    
-    friend UncertainBool operator&&(bool lhs,const UncertainBool& rhs){
-        return UncertainBool(lhs, lhs) && rhs;
-    }
-
-    friend UncertainBool operator||(bool lhs,const UncertainBool& rhs){
-        return UncertainBool(lhs, lhs) || rhs;
-    }
-
-    UncertainBool& operator&=(const UncertainBool& rhs) {
-        *this = *this && rhs;
-        return *this;
-    }
-
-    UncertainBool& operator|=(const UncertainBool& rhs) {
-        *this = *this || rhs;
-        return *this;
-    }
-
-    UncertainBool& operator=(std::initializer_list<std::pair<Value, bool>> init) {
-        if (init.size() != 1) throw std::invalid_argument("Invalid initializer");
-        value_ = init.begin()->first;
-        default_ = init.begin()->second;
-        validateValue();
-        return *this;
-    }
-
-    Value getValue() const { return value_; }
-    bool getDefault() const { return default_; }
-
-private:
-    Value value_;
-    bool default_;
-
-    void validateValue() {
-        if (value_ != False && value_ != True && value_ != Unknown) {
-            throw std::invalid_argument("Invalid value");
-        }
-    }
-};
-
-inline UncertainBool operator!(const UncertainBool& lhs) {
-    return lhs.operator!();
-}
-
-inline bool operator==(bool lhs, const UncertainBool& rhs) {
-    return static_cast<bool>(rhs) == lhs;
-}
-
-inline bool operator!=(bool lhs, const UncertainBool& rhs) {
-    return !(lhs == rhs);
-}

MG/MG_RHI/GLES/Test/TestDrawing.cpp

@@ -1,234 +0,0 @@
-//
-// Created by BZLZHH on 2025/4/26.
-//
-
-#include "TestDrawing.h"
-
-namespace MG_RHI::GLES::Test {
-    constexpr int DISPLAY_COLUMNS = 8;
-    constexpr int DISPLAY_ROWS    = 10;
-    constexpr int MAX_DISPLAY_TEXTURES = DISPLAY_COLUMNS * DISPLAY_ROWS;
-
-    bool IsTextureComplete(const TextureObject& tex) {
-        return !tex.params.mipmapData.empty();
-    }
-
-    bool CheckShaderCompileStatus(GLuint shader, const char* type) {
-        GLint success;
-        ::GLES::glGetShaderiv(shader, GL_COMPILE_STATUS, &success);
-        if (!success) {
-            GLchar infoLog[512];
-            ::GLES::glGetShaderInfoLog(shader, 512, NULL, infoLog);
-            MG_Util::Debug::LogE("Shader compilation error (%s): %s", type, infoLog);
-            return false;
-        }
-        return true;
-    }
-
-    bool CheckProgramLinkStatus(GLuint program) {
-        GLint success;
-        ::GLES::glGetProgramiv(program, GL_LINK_STATUS, &success);
-        if (!success) {
-            GLchar infoLog[512];
-            ::GLES::glGetProgramInfoLog(program, 512, NULL, infoLog);
-            MG_Util::Debug::LogE("Program link error: %s", infoLog);
-            return false;
-        }
-        return true;
-    }
-
-    // TODO: Use the textures state from MG_RHI(another state?) rather than directly from MG_State
-    void DrawAllTextures() {
-        ::GLES::glClearColor(1,1,1,1);
-        ::GLES::glClear(GL_COLOR_BUFFER_BIT);
-        
-        struct ScreenResources {
-            GLuint program = 0;
-            GLuint quadVAO = 0;
-            GLuint quadVBO = 0;
-            GLint uTexLoc = -1;
-            GLint uMVPLoc = -1;
-            ankerl::unordered_map<GLuint, GLuint> textureCache;
-            ankerl::unordered_map<GLuint, bool> textureDirty;
-        };
-
-        static ScreenResources sRes;
-        static glm::ivec2 lastScreenSize{0, 0};
-
-        GLint viewport[4];
-        ::GLES::glGetIntegerv(GL_VIEWPORT, viewport);
-
-        const glm::ivec2 screenSize(viewport[2], viewport[3]);
-
-        if (screenSize != lastScreenSize) {
-            if (sRes.quadVAO) {
-                ::GLES::glDeleteVertexArrays(1, &sRes.quadVAO);
-                ::GLES::glDeleteBuffers(1, &sRes.quadVBO);
-                sRes.quadVAO = sRes.quadVBO = 0;
-            }
-            lastScreenSize = screenSize;
-        }
-
-        if (!sRes.program) {
-            const char* vsSrc = R"(#version 320 es
-            layout(location=0) in vec2 aPos;
-            layout(location=1) in vec2 aTexUV;
-            out vec2 vUV;
-            uniform mat4 uMVP;
-            void main() {
-                gl_Position = uMVP * vec4(aPos, 0.0, 1.0);
-                vUV = aTexUV;
-            })";
-
-            const char* fsSrc = R"(#version 320 es
-            precision mediump float;
-            in vec2 vUV;
-            uniform sampler2D uTex;
-            out vec4 FragColor;
-            void main() {
-                FragColor = texture(uTex, vUV);
-            })";
-
-            GLuint vs = ::GLES::glCreateShader(GL_VERTEX_SHADER);
-            ::GLES::glShaderSource(vs, 1, &vsSrc, NULL);
-            ::GLES::glCompileShader(vs);
-            if (!CheckShaderCompileStatus(vs, "vertex")) return;
-
-            GLuint fs = ::GLES::glCreateShader(GL_FRAGMENT_SHADER);
-            ::GLES::glShaderSource(fs, 1, &fsSrc, NULL);
-            ::GLES::glCompileShader(fs);
-            if (!CheckShaderCompileStatus(fs, "fragment")) return;
-
-            sRes.program = ::GLES::glCreateProgram();
-            ::GLES::glAttachShader(sRes.program, vs);
-            ::GLES::glAttachShader(sRes.program, fs);
-            ::GLES::glLinkProgram(sRes.program);
-            if (!CheckProgramLinkStatus(sRes.program)) return;
-
-            sRes.uTexLoc = ::GLES::glGetUniformLocation(sRes.program, "uTex");
-            sRes.uMVPLoc = ::GLES::glGetUniformLocation(sRes.program, "uMVP");
-
-            ::GLES::glDeleteShader(vs);
-            ::GLES::glDeleteShader(fs);
-        }
-
-        if (!sRes.quadVAO) {
-            const float margin = 0.01f;
-            const float gridWidth = (2.0f - 2*margin) / DISPLAY_COLUMNS;
-            const float gridHeight = (2.0f - 2*margin) / DISPLAY_ROWS;
-
-            std::vector<float> vertices;
-            vertices.reserve(MAX_DISPLAY_TEXTURES * 16);
-
-            for (int col = 0; col < DISPLAY_COLUMNS; ++col) {
-                for (int row = 0; row < DISPLAY_ROWS; ++row) {
-                    const float xStart = -1.0f + margin + col * gridWidth;
-                    const float yStart = -1.0f + margin + row * gridHeight;
-                    const float xEnd = xStart + gridWidth - margin;
-                    const float yEnd = yStart + gridHeight - margin;
-
-                    vertices.insert(vertices.end(), {
-                            xStart, yStart, 0.0f, 0.0f,
-                            xEnd,   yStart, 1.0f, 0.0f,
-                            xEnd,   yEnd,   1.0f, 1.0f,
-                            xStart, yEnd,   0.0f, 1.0f
-                    });
-                }
-            }
-
-            ::GLES::glGenVertexArrays(1, &sRes.quadVAO);
-            ::GLES::glGenBuffers(1, &sRes.quadVBO);
-            ::GLES::glBindVertexArray(sRes.quadVAO);
-            ::GLES::glBindBuffer(GL_ARRAY_BUFFER, sRes.quadVBO);
-            ::GLES::glBufferData(GL_ARRAY_BUFFER,
-                                 vertices.size() * sizeof(float),
-                                 vertices.data(),
-                                 GL_STATIC_DRAW
-            );
-
-            ::GLES::glEnableVertexAttribArray(0);
-            ::GLES::glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE,
-                                          4 * sizeof(float), (void*)0
-            );
-            ::GLES::glEnableVertexAttribArray(1);
-            ::GLES::glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE,
-                                          4 * sizeof(float), (void*)(2 * sizeof(float))
-            );
-            ::GLES::glBindVertexArray(0);
-        }
-
-        std::vector<std::pair<GLuint, TextureObject*>> sortedTextures;
-        for (auto&& [stateID, texObj] : MG_State_T::textureState->textures) {
-            if (!texObj.generated || texObj.target != GL_TEXTURE_2D) continue;
-            if (texObj.params.mipmapData.empty()) continue;
-            sortedTextures.emplace_back(stateID, &texObj);
-        }
-        std::sort(sortedTextures.begin(), sortedTextures.end(),
-                  [](auto& a, auto& b) {
-                      return a.second->createTimestamp > b.second->createTimestamp;
-                  }
-        );
-        sortedTextures.resize(std::min<size_t>(sortedTextures.size(), MAX_DISPLAY_TEXTURES));
-
-        for (auto&& [stateID, texObj] : sortedTextures) {
-            auto& dirtyFlag = sRes.textureDirty[stateID];
-            bool needCreate = !sRes.textureCache.count(stateID);
-
-            if (needCreate) {
-                GLuint glTexID;
-                ::GLES::glGenTextures(1, &glTexID);
-                sRes.textureCache[stateID] = glTexID;
-                dirtyFlag = true;
-            }
-
-            if (dirtyFlag || needCreate) {
-                const auto& mip0 = texObj->params.mipmapData.begin()->second;
-                if (mip0.hasData) {
-                    GLuint glTexID = sRes.textureCache[stateID];
-                    ::GLES::glBindTexture(GL_TEXTURE_2D, glTexID);
-                    ::GLES::glTexImage2D(GL_TEXTURE_2D, 0, mip0.internalFormat,
-                                         mip0.width, mip0.height, 0,
-                                         mip0.format, mip0.type, mip0.pixelData.data()
-                    );
-                    ::GLES::glTexParameteri(GL_TEXTURE_2D,
-                                            GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-                    ::GLES::glTexParameteri(GL_TEXTURE_2D,
-                                            GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-                    ::GLES::glTexParameteri(GL_TEXTURE_2D,
-                                            GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-                    ::GLES::glTexParameteri(GL_TEXTURE_2D,
-                                            GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-                    if (texObj->params.mipmapData.size() > 1) {
-                        ::GLES::glGenerateMipmap(GL_TEXTURE_2D);
-                    }
-                    dirtyFlag = false;
-                }
-            }
-        }
-
-        GLboolean origDepthTest = ::GLES::glIsEnabled(GL_DEPTH_TEST);
-        GLint origProgram, origViewport[4];
-        ::GLES::glGetIntegerv(GL_VIEWPORT, origViewport);
-        ::GLES::glGetIntegerv(GL_CURRENT_PROGRAM, &origProgram);
-
-        ::GLES::glDisable(GL_DEPTH_TEST);
-        ::GLES::glUseProgram(sRes.program);
-        ::GLES::glUniformMatrix4fv(sRes.uMVPLoc, 1, GL_FALSE,
-                                   &glm::mat4(1.0f)[0][0]
-        );
-        ::GLES::glUniform1i(sRes.uTexLoc, 0);
-        ::GLES::glBindVertexArray(sRes.quadVAO);
-
-        for (size_t i = 0; i < sortedTextures.size(); ++i) {
-            const GLuint glTexID = sRes.textureCache[sortedTextures[i].first];
-            ::GLES::glActiveTexture(GL_TEXTURE0);
-            ::GLES::glBindTexture(GL_TEXTURE_2D, glTexID);
-            ::GLES::glDrawArrays(GL_TRIANGLE_FAN, static_cast<GLint>(i*4), 4);
-        }
-
-        if (origDepthTest) ::GLES::glEnable(GL_DEPTH_TEST);
-        ::GLES::glUseProgram(origProgram);
-        ::GLES::glViewport(origViewport[0], origViewport[1],
-                           origViewport[2], origViewport[3]);
-    }
-}

MG/MG_RHI/GLES/Test/TestDrawing.h

@@ -1,14 +0,0 @@
-//
-// Created by BZLZHH on 2025/4/26.
-//
-
-#ifndef MOBILEGL_TESTDRAWING_H
-#define MOBILEGL_TESTDRAWING_H
-
-#include "../../../Includes.h"
-
-namespace MG_RHI::GLES::Test {
-    void DrawAllTextures();
-}
-
-#endif //MOBILEGL_TESTDRAWING_H

MG/MG_UTIL/Debug/Debug.h

@@ -1,31 +0,0 @@
-//
-// Created by BZLZHH on 2025/1/26.
-//
-
-#ifndef MOBILEGL_DEBUG_H
-#define MOBILEGL_DEBUG_H
-
-#include "../../Includes.h"
-
-#define FORCE_SYNC_WITH_LOG_FILE 0
-
-namespace MG_Util {
-    namespace Debug {
-        const char* GetOSName();
-        
-        void LogD (const char* format, ...);
-        void LogW (const char* format, ...);
-        void LogE (const char* format, ...);
-        void LogI (const char* format, ...);
-        void LogF (const char* format, ...);
-        void LogClear();
-        void LogInit();
-        void LogWrite(const char* format, va_list args);
-        
-        const char* GLEnumToString(::GLenum value);
-    }
-}
-
-#define MOBILEGL_DEBUG_H
-
-#endif //MOBILEGL_DEBUG_H

MG/MG_UTIL/Program/DebugTool.cpp

@@ -1,150 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/3.
-//
-
-#include "DebugTool.h"
-
-namespace MG_Util::Program {
-    std::string GLTypeToString(GLenum type) {
-        switch(type) {
-            case GL_FLOAT: return "float";
-            case GL_FLOAT_VEC2: return "vec2";
-            case GL_FLOAT_VEC3: return "vec3";
-            case GL_FLOAT_VEC4: return "vec4";
-            case GL_INT: return "int";
-            case GL_INT_VEC2: return "ivec2";
-            case GL_INT_VEC3: return "ivec3";
-            case GL_INT_VEC4: return "ivec4";
-            case GL_UNSIGNED_INT: return "uint";
-            case GL_UNSIGNED_INT_VEC2: return "uvec2";
-            case GL_UNSIGNED_INT_VEC3: return "uvec3";
-            case GL_UNSIGNED_INT_VEC4: return "uvec4";
-            case GL_BOOL: return "bool";
-            case GL_BOOL_VEC2: return "bvec2";
-            case GL_BOOL_VEC3: return "bvec3";
-            case GL_BOOL_VEC4: return "bvec4";
-            case GL_FLOAT_MAT2: return "mat2";
-            case GL_FLOAT_MAT3: return "mat3";
-            case GL_FLOAT_MAT4: return "mat4";
-            case GL_FLOAT_MAT2x3: return "mat2x3";
-            case GL_FLOAT_MAT2x4: return "mat2x4";
-            case GL_FLOAT_MAT3x2: return "mat3x2";
-            case GL_FLOAT_MAT3x4: return "mat3x4";
-            case GL_FLOAT_MAT4x2: return "mat4x2";
-            case GL_FLOAT_MAT4x3: return "mat4x3";
-            case GL_SAMPLER_1D: return "sampler1D";
-            case GL_SAMPLER_2D: return "sampler2D";
-            case GL_SAMPLER_3D: return "sampler3D";
-            case GL_SAMPLER_CUBE: return "samplerCube";
-            case GL_SAMPLER_1D_SHADOW: return "sampler1DShadow";
-            case GL_SAMPLER_2D_SHADOW: return "sampler2DShadow";
-            case GL_SAMPLER_CUBE_SHADOW: return "samplerCubeShadow";
-            case GL_SAMPLER_1D_ARRAY: return "sampler1DArray";
-            case GL_SAMPLER_2D_ARRAY: return "sampler2DArray";
-            case GL_SAMPLER_1D_ARRAY_SHADOW: return "sampler1DArrayShadow";
-            case GL_SAMPLER_2D_ARRAY_SHADOW: return "sampler2DArrayShadow";
-            case GL_SAMPLER_BUFFER: return "samplerBuffer";
-            case GL_SAMPLER_2D_MULTISAMPLE: return "sampler2DMS";
-            case GL_SAMPLER_2D_MULTISAMPLE_ARRAY: return "sampler2DMSArray";
-            default: return "UnknownType(0x" + std::to_string(type) + ")";
-        }
-    }
-    
-    std::string FormatUniformValue(const UniformValue& value) {
-        std::ostringstream ss;
-        ss << "[";
-
-        const size_t elemCount = std::min<size_t>(value.count, 16);
-
-        switch(value.type) {
-            case GL_FLOAT:
-            case GL_FLOAT_VEC2:
-            case GL_FLOAT_VEC3:
-            case GL_FLOAT_VEC4:
-            case GL_FLOAT_MAT2:
-            case GL_FLOAT_MAT3:
-            case GL_FLOAT_MAT4:
-            case GL_FLOAT_MAT2x3:
-            case GL_FLOAT_MAT2x4:
-            case GL_FLOAT_MAT3x2:
-            case GL_FLOAT_MAT3x4:
-            case GL_FLOAT_MAT4x2:
-            case GL_FLOAT_MAT4x3:
-                for(size_t i=0; i<elemCount; ++i) {
-                    if (i > 0) ss << ", ";
-                    ss << (i < value.floatData.size() ? value.floatData[i] : 0.0f);
-                }
-                break;
-
-            case GL_INT:
-            case GL_INT_VEC2:
-            case GL_INT_VEC3:
-            case GL_INT_VEC4:
-                for(size_t i=0; i<elemCount; ++i) {
-                    if (i > 0) ss << ", ";
-                    ss << (i < value.intData.size() ? value.intData[i] : 0);
-                }
-                break;
-
-            case GL_UNSIGNED_INT:
-            case GL_UNSIGNED_INT_VEC2:
-            case GL_UNSIGNED_INT_VEC3:
-            case GL_UNSIGNED_INT_VEC4:
-                for(size_t i=0; i<elemCount; ++i) {
-                    if (i > 0) ss << ", ";
-                    ss << (i < value.uintData.size() ? value.uintData[i] : 0);
-                }
-                break;
-
-            case GL_BOOL:
-            case GL_BOOL_VEC2:
-            case GL_BOOL_VEC3:
-            case GL_BOOL_VEC4:
-                for(size_t i=0; i<elemCount; ++i) {
-                    if (i > 0) ss << ", ";
-                    ss << (i < value.boolData.size() ? (value.boolData[i] ? "true" : "false") : "false");
-                }
-                break;
-
-            default:
-                ss << "N/A";
-        }
-
-        if (value.count > elemCount) ss << ", ...";
-        ss << "]";
-        return ss.str();
-    }
-    
-    void DumpUniforms(const ProgramState& state, GLuint program) {
-        if (MG_Global::Common::LogLevel > MG_Constants::Common::LOG_LEVEL_DEBUG)
-            return;
-        
-        auto prog = (ProgramObject)state.GetProgramObject(program);
-        if (!prog.linked.toBool()) {
-            MG_Util::Debug::LogE("Program %u not linked", program);
-            return;
-        }
-        MG_Util::Debug::LogD("=== Dumping uniforms for program %u ===", program);
-        for(const auto& [name, loc] : prog.uniformLocations) {
-            const auto& value = prog.uniformValues.at(name);
-            MG_Util::Debug::LogD("Uniform: %-24s Location: %-4d Type: %-16s Count: %-3d Value: %s",
-                                 name.c_str(),
-                                 loc,
-                                 GLTypeToString(value.type).c_str(),
-                                 value.count,
-                                 FormatUniformValue(value).c_str());
-        }
-    }
-    
-    void DumpCurrentUniforms(const ProgramState& state) {
-        if (MG_Global::Common::LogLevel > MG_Constants::Common::LOG_LEVEL_DEBUG)
-            return;
-        
-        GLuint current = state.GetCurrentProgram();
-        if (current == 0) {
-            MG_Util::Debug::LogE("No active program");
-            return;
-        }
-        DumpUniforms(state, current);
-    }
-}

MG/MG_UTIL/Program/DebugTool.h

@@ -1,16 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/3.
-//
-
-#ifndef MOBILEGL_PROGRAM_DEBUGTOOL_H
-#define MOBILEGL_PROGRAM_DEBUGTOOL_H
-#include "../../Includes.h"
-
-namespace MG_Util::Program {
-    std::string GLTypeToString(GLenum type);
-    std::string FormatUniformValue(const UniformValue& value);
-    void DumpUniforms(const ProgramState& state, GLuint program);
-    void DumpCurrentUniforms(const ProgramState& state);
-}
-
-#endif //MOBILEGL_PROGRAM_DEBUGTOOL_H

MG/MG_UTIL/Program/GLSLTool.cpp

@@ -1,438 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/3.
-//
-
-#include "GLSLTool.h"
-
-namespace MG_Util::Program {
-    std::string CompileGLSLToTShader(GLenum shaderType, const std::string& source, glslang::TShader *&shader) {
-        std::string infoLog;
-        using namespace glslang;
-        
-        int glslVersion = QueryGLSLVersion(source);
-        EShLanguage language = GetEShLanguageByShaderType(shaderType);
-        if (language == EShLanguage::EShLangCount) {
-            infoLog += "Error: [Preprocess] Unsupported shader type: " +
-                      std::to_string(shaderType);
-            TShader tmpShader(EShLanguage::EShLangVertex);
-            return infoLog;
-        }
-
-        shader = new TShader(language);
-        const char *src = source.c_str();
-        shader->setStrings(&src, 1);
-        shader->setEnvInput(EShSourceGlsl, language, EShClientVulkan, glslVersion);
-        shader->setEnvClient(EShClientOpenGL, EShTargetOpenGL_450);
-        shader->setEnvTarget(EShTargetSpv, EShTargetSpv_1_6);
-        shader->setAutoMapLocations(true);
-        shader->setAutoMapBindings(true);
-
-        // Is InitResources() really correct?
-        TBuiltInResource resources = InitResources();
-
-        if (!shader->parse(&resources, glslVersion, true, EShMsgDefault)) {
-            infoLog += "Error: [glslang] Cannot compile the " + GetShaderTypeName(shaderType) + ":\n"
-                      + std::to_string(shader->getInfoLog());
-            return infoLog;
-        }
-        
-        return {};
-    }
-
-    std::vector<std::vector<unsigned>> CompileMultipleShadersToSPIRV(const ProgramState& state, ProgramObject& prog, std::string& infoLog) {
-        using namespace glslang;
-
-        std::vector<EShLanguage> usedShaderTypes;
-        TProgram program;
-        for (GLuint shaderId : prog.attachedShaders) {
-            auto shaderObject = state.GetShaderObject(shaderId);
-            EShLanguage shLanguage = GetEShLanguageByShaderType(shaderObject.type);
-            TShader* shader = nullptr;
-            std::string infoLogOfShader = CompileGLSLToTShader(shaderObject.type, shaderObject.source, shader);
-            if (!infoLogOfShader.empty()) {
-                infoLog = "Error: [glslang] Cannot compile " + GetShaderTypeName(shaderObject.type) +
-                        " :\n" + infoLogOfShader;
-                return {};
-            }
-            program.addShader(shader);
-            usedShaderTypes.push_back(shLanguage);
-        }
-        if (!program.link(EShMsgDefault)) {
-            infoLog = "Error: [glslang] Cannot link the program:\n" + std::to_string(program.getInfoLog());
-            return {};
-        }
-
-        SpvOptions spvOptions;
-        spvOptions.disableOptimizer = false;
-
-        std::vector<std::vector<unsigned>> allSpirv;
-        for(auto type : usedShaderTypes) {
-            std::vector<unsigned> spirv;
-            GlslangToSpv(*program.getIntermediate(type), spirv, &spvOptions);
-            allSpirv.push_back(spirv);
-        }
-
-        return allSpirv;
-    }
-    
-    std::vector<unsigned> CompileGLSLToSPIRV(GLenum shaderType, const std::string &source, std::string &infoLog) {
-        using namespace glslang;
-
-        TShader* shader = nullptr;
-        std::string infoLogOfShader = CompileGLSLToTShader(shaderType, source, shader);
-        if (!infoLogOfShader.empty()) {
-            infoLog = "Error: [glslang] Cannot compile " + GetShaderTypeName(shaderType) + ":\n" + infoLogOfShader;
-            return {};
-        }
-        TProgram program;
-        program.addShader(shader);
-        if (!program.link(EShMsgDefault)) {
-            infoLog = "Error: [glslang] Cannot link the program of the single shader:\n" + std::to_string(program.getInfoLog());
-            return {};
-        }
-        std::vector<unsigned> spirv;
-        
-        SpvOptions spvOptions;
-        spvOptions.disableOptimizer = false;
-        EShLanguage language = GetEShLanguageByShaderType(shaderType);
-        GlslangToSpv(*program.getIntermediate(language), spirv, &spvOptions);
-
-        return spirv;
-    }
-
-    void ReflectSPIRVUniforms(const std::vector<std::vector<unsigned>>& allSpirv, ProgramObject& prog, std::string& infoLog) {
-        spvc_context context = nullptr;
-
-        if (spvc_context_create(&context) != SPVC_SUCCESS) {
-            infoLog = "Failed to create SPIRV-Cross context";
-            return;
-        }
-
-        ankerl::unordered_set<GLint> used_locations;
-        GLint auto_location = 0;
-        for (auto spirv: allSpirv) {
-            spvc_parsed_ir ir = nullptr;
-            spvc_compiler compiler = nullptr;
-            spvc_resources resources = nullptr;
-            
-            spvc_result result = spvc_context_parse_spirv(context, spirv.data(), spirv.size(), &ir);
-            if (result != SPVC_SUCCESS) {
-                infoLog = "SPIR-V parsing failed";
-                spvc_context_destroy(context);
-                return;
-            }
-
-            result = spvc_context_create_compiler(context, SPVC_BACKEND_GLSL, ir,
-                                                  SPVC_CAPTURE_MODE_TAKE_OWNERSHIP, &compiler);
-            if (result != SPVC_SUCCESS) {
-                infoLog = "Failed to create SPIRV-Cross compiler";
-                spvc_context_destroy(context);
-                return;
-            }
-
-            result = spvc_compiler_create_shader_resources(compiler, &resources);
-            if (result != SPVC_SUCCESS) {
-                infoLog = "Failed to get shader resources";
-                spvc_context_destroy(context);
-                return;
-            }
-
-            const spvc_reflected_resource *uniform_buffers = nullptr;
-            const spvc_reflected_resource *uniform_vars = nullptr;
-            const spvc_reflected_resource *sampled_images = nullptr;
-            size_t uniform_buffer_count = 0;
-            size_t uniform_var_count = 0;
-            size_t sampled_image_count = 0;
-
-            spvc_resources_get_resource_list_for_type(resources, SPVC_RESOURCE_TYPE_UNIFORM_BUFFER,
-                                                      &uniform_buffers, &uniform_buffer_count);
-            spvc_resources_get_resource_list_for_type(resources,
-                                                      SPVC_RESOURCE_TYPE_GL_PLAIN_UNIFORM,
-                                                      &uniform_vars, &uniform_var_count);
-            spvc_resources_get_resource_list_for_type(resources, SPVC_RESOURCE_TYPE_SAMPLED_IMAGE,
-                                                      &sampled_images, &sampled_image_count);
-
-            std::vector<const spvc_reflected_resource *> all_resources;
-            for (size_t i = 0; i < uniform_buffer_count; ++i)
-                all_resources.push_back(&uniform_buffers[i]);
-            for (size_t i = 0; i < uniform_var_count; ++i)
-                all_resources.push_back(&uniform_vars[i]);
-            for (size_t i = 0; i < sampled_image_count; ++i)
-                all_resources.push_back(&sampled_images[i]);
-
-            for (const auto res_ptr: all_resources) {
-                const spvc_reflected_resource &res = *res_ptr;
-                const char *name = res.name;
-                if (name[0] == '_') continue;
-
-                unsigned spirv_location = spvc_compiler_get_decoration(compiler, res.id,
-                                                                       SpvDecorationLocation);
-                GLint final_location;
-
-                if (spirv_location > 0) {
-                    if (used_locations.find(spirv_location) != used_locations.end()) {
-                        infoLog += "\nLocation conflict for uniform: " + std::string(name);
-                        continue;
-                    }
-                    final_location = spirv_location;
-                } else {
-                    while (used_locations.find(auto_location) != used_locations.end()) {
-                        auto_location++;
-                    }
-                    final_location = auto_location;
-                }
-
-                used_locations.insert(final_location);
-
-                spvc_type_id type_id = res.type_id;
-                spvc_type type = spvc_compiler_get_type_handle(compiler, type_id);
-                spvc_basetype base_type = spvc_type_get_basetype(type);
-                GLenum gl_type = GL_NONE;
-
-                if (base_type == SPVC_BASETYPE_SAMPLED_IMAGE) {
-                    SpvDim dim = spvc_type_get_image_dimension(type);
-                    bool is_array = spvc_type_get_image_arrayed(type);
-                    bool is_shadow = spvc_type_get_image_is_depth(type);
-                    bool is_ms = spvc_type_get_image_multisampled(type);
-
-                    switch (dim) {
-                        case SpvDim1D:
-                            gl_type = is_array ? GL_SAMPLER_1D_ARRAY : GL_SAMPLER_1D;
-                            if (is_shadow)
-                                gl_type = is_array ? GL_SAMPLER_1D_ARRAY_SHADOW
-                                                   : GL_SAMPLER_1D_SHADOW;
-                            break;
-                        case SpvDim2D:
-                            if (is_ms) {
-                                gl_type = is_array ? GL_SAMPLER_2D_MULTISAMPLE_ARRAY
-                                                   : GL_SAMPLER_2D_MULTISAMPLE;
-                            } else {
-                                gl_type = is_array ? GL_SAMPLER_2D_ARRAY : GL_SAMPLER_2D;
-                                if (is_shadow)
-                                    gl_type = is_array ? GL_SAMPLER_2D_ARRAY_SHADOW
-                                                       : GL_SAMPLER_2D_SHADOW;
-                            }
-                            break;
-                        case SpvDim3D:
-                            gl_type = GL_SAMPLER_3D;
-                            break;
-                        case SpvDimCube:
-                            gl_type = is_array ? GL_SAMPLER_CUBE_MAP_ARRAY : GL_SAMPLER_CUBE;
-                            if (is_shadow)
-                                gl_type = is_array ? GL_SAMPLER_CUBE_MAP_ARRAY_SHADOW
-                                                   : GL_SAMPLER_CUBE_SHADOW;
-                            break;
-                        case SpvDimRect:
-                            gl_type = is_shadow ? GL_SAMPLER_2D_RECT_SHADOW : GL_SAMPLER_2D_RECT;
-                            break;
-                        case SpvDimBuffer:
-                            gl_type = GL_SAMPLER_BUFFER;
-                            break;
-                        default:
-                            gl_type = GL_SAMPLER_2D;
-                    }
-
-                    spvc_basetype sampled_base = spvc_type_get_basetype(type);
-                    if (sampled_base == SPVC_BASETYPE_INT32) {
-                        switch (gl_type) {
-                            case GL_SAMPLER_1D:
-                                gl_type = GL_INT_SAMPLER_1D;
-                                break;
-                            case GL_SAMPLER_2D:
-                                gl_type = GL_INT_SAMPLER_2D;
-                                break;
-                            case GL_SAMPLER_3D:
-                                gl_type = GL_INT_SAMPLER_3D;
-                                break;
-                            case GL_SAMPLER_CUBE:
-                                gl_type = GL_INT_SAMPLER_CUBE;
-                                break;
-                            case GL_SAMPLER_1D_ARRAY:
-                                gl_type = GL_INT_SAMPLER_1D_ARRAY;
-                                break;
-                            case GL_SAMPLER_2D_ARRAY:
-                                gl_type = GL_INT_SAMPLER_2D_ARRAY;
-                                break;
-                            case GL_SAMPLER_CUBE_MAP_ARRAY:
-                                gl_type = GL_INT_SAMPLER_CUBE_MAP_ARRAY;
-                                break;
-                            case GL_SAMPLER_2D_RECT:
-                                gl_type = GL_INT_SAMPLER_2D_RECT;
-                                break;
-                            case GL_SAMPLER_BUFFER:
-                                gl_type = GL_INT_SAMPLER_BUFFER;
-                                break;
-                            case GL_SAMPLER_2D_MULTISAMPLE:
-                                gl_type = GL_INT_SAMPLER_2D_MULTISAMPLE;
-                                break;
-                            case GL_SAMPLER_2D_MULTISAMPLE_ARRAY:
-                                gl_type = GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY;
-                                break;
-                        }
-                    } else if (sampled_base == SPVC_BASETYPE_UINT32) {
-                        switch (gl_type) {
-                            case GL_SAMPLER_1D:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_1D;
-                                break;
-                            case GL_SAMPLER_2D:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_2D;
-                                break;
-                            case GL_SAMPLER_3D:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_3D;
-                                break;
-                            case GL_SAMPLER_CUBE:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_CUBE;
-                                break;
-                            case GL_SAMPLER_1D_ARRAY:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_1D_ARRAY;
-                                break;
-                            case GL_SAMPLER_2D_ARRAY:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_2D_ARRAY;
-                                break;
-                            case GL_SAMPLER_CUBE_MAP_ARRAY:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_CUBE_MAP_ARRAY;
-                                break;
-                            case GL_SAMPLER_2D_RECT:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_2D_RECT;
-                                break;
-                            case GL_SAMPLER_BUFFER:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_BUFFER;
-                                break;
-                            case GL_SAMPLER_2D_MULTISAMPLE:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE;
-                                break;
-                            case GL_SAMPLER_2D_MULTISAMPLE_ARRAY:
-                                gl_type = GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY;
-                                break;
-                        }
-                    }
-                } else {
-                    unsigned vec_size = spvc_type_get_vector_size(type);
-                    unsigned columns = spvc_type_get_columns(type);
-
-                    switch (base_type) {
-                        case SPVC_BASETYPE_FP32:
-                            if (columns > 1) {
-                                if (vec_size == 2 && columns == 2) gl_type = GL_FLOAT_MAT2;
-                                else if (vec_size == 3 && columns == 3) gl_type = GL_FLOAT_MAT3;
-                                else if (vec_size == 4 && columns == 4) gl_type = GL_FLOAT_MAT4;
-                                else if (vec_size == 3 && columns == 2) gl_type = GL_FLOAT_MAT2x3;
-                                else if (vec_size == 4 && columns == 2) gl_type = GL_FLOAT_MAT2x4;
-                                else if (vec_size == 2 && columns == 3) gl_type = GL_FLOAT_MAT3x2;
-                                else if (vec_size == 4 && columns == 3) gl_type = GL_FLOAT_MAT3x4;
-                                else if (vec_size == 2 && columns == 4) gl_type = GL_FLOAT_MAT4x2;
-                                else if (vec_size == 3 && columns == 4) gl_type = GL_FLOAT_MAT4x3;
-                            } else {
-                                switch (vec_size) {
-                                    case 1:
-                                        gl_type = GL_FLOAT;
-                                        break;
-                                    case 2:
-                                        gl_type = GL_FLOAT_VEC2;
-                                        break;
-                                    case 3:
-                                        gl_type = GL_FLOAT_VEC3;
-                                        break;
-                                    case 4:
-                                        gl_type = GL_FLOAT_VEC4;
-                                        break;
-                                }
-                            }
-                            break;
-                        case SPVC_BASETYPE_INT32:
-                            switch (vec_size) {
-                                case 1:
-                                    gl_type = GL_INT;
-                                    break;
-                                case 2:
-                                    gl_type = GL_INT_VEC2;
-                                    break;
-                                case 3:
-                                    gl_type = GL_INT_VEC3;
-                                    break;
-                                case 4:
-                                    gl_type = GL_INT_VEC4;
-                                    break;
-                            }
-                            break;
-                        case SPVC_BASETYPE_UINT32:
-                            switch (vec_size) {
-                                case 1:
-                                    gl_type = GL_UNSIGNED_INT;
-                                    break;
-                                case 2:
-                                    gl_type = GL_UNSIGNED_INT_VEC2;
-                                    break;
-                                case 3:
-                                    gl_type = GL_UNSIGNED_INT_VEC3;
-                                    break;
-                                case 4:
-                                    gl_type = GL_UNSIGNED_INT_VEC4;
-                                    break;
-                            }
-                            break;
-                        case SPVC_BASETYPE_BOOLEAN:
-                            switch (vec_size) {
-                                case 1:
-                                    gl_type = GL_BOOL;
-                                    break;
-                                case 2:
-                                    gl_type = GL_BOOL_VEC2;
-                                    break;
-                                case 3:
-                                    gl_type = GL_BOOL_VEC3;
-                                    break;
-                                case 4:
-                                    gl_type = GL_BOOL_VEC4;
-                                    break;
-                            }
-                            break;
-                        default:
-                            continue;
-                    }
-                }
-
-                prog.uniformLocations[name] = final_location;
-                UniformValue uniformValue;
-                uniformValue.type = gl_type;
-                prog.uniformValues[name] = uniformValue;
-            }
-        }
-        spvc_context_destroy(context);
-    }
-
-    std::string CompileSPIRVToGLSL(std::vector<unsigned int> spirv, uint glslVersion, bool isES) {
-        spvc_context context = nullptr;
-        spvc_parsed_ir ir = nullptr;
-        spvc_compiler compiler_glsl = nullptr;
-        spvc_compiler_options options = nullptr;
-        spvc_resources resources = nullptr;
-        const spvc_reflected_resource *list = nullptr;
-        const char *result = nullptr;
-        size_t count;
-
-        const SpvId *p_spirv = spirv.data();
-        size_t word_count = spirv.size();
-
-        spvc_context_create(&context);
-        spvc_context_parse_spirv(context, p_spirv, word_count, &ir);
-        spvc_context_create_compiler(context, SPVC_BACKEND_GLSL, ir, SPVC_CAPTURE_MODE_TAKE_OWNERSHIP, &compiler_glsl);
-        spvc_compiler_create_shader_resources(compiler_glsl, &resources);
-        spvc_resources_get_resource_list_for_type(resources, SPVC_RESOURCE_TYPE_UNIFORM_BUFFER, &list, &count);
-        spvc_compiler_create_compiler_options(compiler_glsl, &options);
-        spvc_compiler_options_set_uint(options, SPVC_COMPILER_OPTION_GLSL_VERSION, glslVersion);
-        spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_ES, isES ? SPVC_TRUE : SPVC_FALSE);
-        spvc_compiler_install_compiler_options(compiler_glsl, options);
-        spvc_compiler_compile(compiler_glsl, &result);
-
-        if (!result) {
-            return{};
-        }
-
-        std::string essl = result;
-
-        spvc_context_destroy(context);
-
-        return essl;
-    }
-}

MG/MG_UTIL/Program/GLSLTool.h

@@ -1,183 +0,0 @@
-//
-// Created by BZLZHH on 2025/5/3.
-//
-
-#ifndef MOBILEGL_GLSLTOOL_H
-#define MOBILEGL_GLSLTOOL_H
-
-#include "../../Includes.h"
-
-namespace MG_Util::Program {
-    inline static TBuiltInResource InitResources()
-    {
-        TBuiltInResource Resources{};
-        Resources.maxLights                                 = 32;
-        Resources.maxClipPlanes                             = 6;
-        Resources.maxTextureUnits                           = 32;
-        Resources.maxTextureCoords                          = 32;
-        Resources.maxVertexAttribs                          = 64;
-        Resources.maxVertexUniformComponents                = 4096;
-        Resources.maxVaryingFloats                          = 64;
-        Resources.maxVertexTextureImageUnits                = 32;
-        Resources.maxCombinedTextureImageUnits              = 80;
-        Resources.maxTextureImageUnits                      = 32;
-        Resources.maxFragmentUniformComponents              = 4096;
-        Resources.maxDrawBuffers                            = 32;
-        Resources.maxVertexUniformVectors                   = 128;
-        Resources.maxVaryingVectors                         = 8;
-        Resources.maxFragmentUniformVectors                 = 16;
-        Resources.maxVertexOutputVectors                    = 16;
-        Resources.maxFragmentInputVectors                   = 15;
-        Resources.minProgramTexelOffset                     = -8;
-        Resources.maxProgramTexelOffset                     = 7;
-        Resources.maxClipDistances                          = 8;
-        Resources.maxComputeWorkGroupCountX                 = 65535;
-        Resources.maxComputeWorkGroupCountY                 = 65535;
-        Resources.maxComputeWorkGroupCountZ                 = 65535;
-        Resources.maxComputeWorkGroupSizeX                  = 1024;
-        Resources.maxComputeWorkGroupSizeY                  = 1024;
-        Resources.maxComputeWorkGroupSizeZ                  = 64;
-        Resources.maxComputeUniformComponents               = 1024;
-        Resources.maxComputeTextureImageUnits               = 16;
-        Resources.maxComputeImageUniforms                   = 8;
-        Resources.maxComputeAtomicCounters                  = 8;
-        Resources.maxComputeAtomicCounterBuffers            = 1;
-        Resources.maxVaryingComponents                      = 60;
-        Resources.maxVertexOutputComponents                 = 64;
-        Resources.maxGeometryInputComponents                = 64;
-        Resources.maxGeometryOutputComponents               = 128;
-        Resources.maxFragmentInputComponents                = 128;
-        Resources.maxImageUnits                             = 8;
-        Resources.maxCombinedImageUnitsAndFragmentOutputs   = 8;
-        Resources.maxCombinedShaderOutputResources          = 8;
-        Resources.maxImageSamples                           = 0;
-        Resources.maxVertexImageUniforms                    = 0;
-        Resources.maxTessControlImageUniforms               = 0;
-        Resources.maxTessEvaluationImageUniforms            = 0;
-        Resources.maxGeometryImageUniforms                  = 0;
-        Resources.maxFragmentImageUniforms                  = 8;
-        Resources.maxCombinedImageUniforms                  = 8;
-        Resources.maxGeometryTextureImageUnits              = 16;
-        Resources.maxGeometryOutputVertices                 = 256;
-        Resources.maxGeometryTotalOutputComponents          = 1024;
-        Resources.maxGeometryUniformComponents              = 1024;
-        Resources.maxGeometryVaryingComponents              = 64;
-        Resources.maxTessControlInputComponents             = 128;
-        Resources.maxTessControlOutputComponents            = 128;
-        Resources.maxTessControlTextureImageUnits           = 16;
-        Resources.maxTessControlUniformComponents           = 1024;
-        Resources.maxTessControlTotalOutputComponents       = 4096;
-        Resources.maxTessEvaluationInputComponents          = 128;
-        Resources.maxTessEvaluationOutputComponents         = 128;
-        Resources.maxTessEvaluationTextureImageUnits        = 16;
-        Resources.maxTessEvaluationUniformComponents        = 1024;
-        Resources.maxTessPatchComponents                    = 120;
-        Resources.maxPatchVertices                          = 32;
-        Resources.maxTessGenLevel                           = 64;
-        Resources.maxViewports                              = 16;
-        Resources.maxVertexAtomicCounters                   = 0;
-        Resources.maxTessControlAtomicCounters              = 0;
-        Resources.maxTessEvaluationAtomicCounters           = 0;
-        Resources.maxGeometryAtomicCounters                 = 0;
-        Resources.maxFragmentAtomicCounters                 = 8;
-        Resources.maxCombinedAtomicCounters                 = 8;
-        Resources.maxAtomicCounterBindings                  = 1;
-        Resources.maxVertexAtomicCounterBuffers             = 0;
-        Resources.maxTessControlAtomicCounterBuffers        = 0;
-        Resources.maxTessEvaluationAtomicCounterBuffers     = 0;
-        Resources.maxGeometryAtomicCounterBuffers           = 0;
-        Resources.maxFragmentAtomicCounterBuffers           = 1;
-        Resources.maxCombinedAtomicCounterBuffers           = 1;
-        Resources.maxAtomicCounterBufferSize                = 16384;
-        Resources.maxTransformFeedbackBuffers               = 4;
-        Resources.maxTransformFeedbackInterleavedComponents = 64;
-        Resources.maxCullDistances                          = 8;
-        Resources.maxCombinedClipAndCullDistances           = 8;
-        Resources.maxSamples                                = 4;
-        Resources.maxMeshOutputVerticesNV                   = 256;
-        Resources.maxMeshOutputPrimitivesNV                 = 512;
-        Resources.maxMeshWorkGroupSizeX_NV                  = 32;
-        Resources.maxMeshWorkGroupSizeY_NV                  = 1;
-        Resources.maxMeshWorkGroupSizeZ_NV                  = 1;
-        Resources.maxTaskWorkGroupSizeX_NV                  = 32;
-        Resources.maxTaskWorkGroupSizeY_NV                  = 1;
-        Resources.maxTaskWorkGroupSizeZ_NV                  = 1;
-        Resources.maxMeshViewCountNV                        = 4;
-        
-        Resources.limits.nonInductiveForLoops                 = true;
-        Resources.limits.whileLoops                           = true;
-        Resources.limits.doWhileLoops                         = true;
-        Resources.limits.generalUniformIndexing               = true;
-        Resources.limits.generalAttributeMatrixVectorIndexing = true;
-        Resources.limits.generalVaryingIndexing               = true;
-        Resources.limits.generalSamplerIndexing               = true;
-        Resources.limits.generalVariableIndexing              = true;
-        Resources.limits.generalConstantMatrixVectorIndexing  = true;
-
-        return Resources;
-    }
-
-    inline int QueryGLSLVersion(const std::string& code) {
-        static std::regex version_pattern(R"(#version\s+(\d{3}))");
-        std::smatch match;
-        if (std::regex_search(code, match, version_pattern)) {
-            return std::stoi(match[1].str());
-        }
-
-        return -1;
-    }
-
-    inline GLsizei GetMatrixElementCount(GLenum matrixType) {
-        switch(matrixType) {
-            case GL_FLOAT_MAT2: return 4;
-            case GL_FLOAT_MAT3: return 9;
-            case GL_FLOAT_MAT4: return 16;
-            case GL_FLOAT_MAT2x3: return 6;
-            case GL_FLOAT_MAT2x4: return 8;
-            case GL_FLOAT_MAT3x2: return 6;
-            case GL_FLOAT_MAT3x4: return 12;
-            case GL_FLOAT_MAT4x2: return 8;
-            case GL_FLOAT_MAT4x3: return 12;
-            default: return 0;
-        }
-    }
-
-    inline std::string GetShaderTypeName(GLenum shaderType) {
-        switch(shaderType) {
-            case GL_VERTEX_SHADER:          return "Vertex Shader";
-            case GL_FRAGMENT_SHADER:        return "Fragment Shader";
-            case GL_GEOMETRY_SHADER:        return "Geometry Shader";
-            case GL_TESS_CONTROL_SHADER:    return "Tessellation Control Shader";
-            case GL_TESS_EVALUATION_SHADER: return "Tessellation Evaluation Shader";
-            case GL_COMPUTE_SHADER:         return "Compute Shader";
-            default:                        return "Unknown Shader Type (" + std::to_string(shaderType) + ")";
-        }
-    }
-    
-    inline EShLanguage GetEShLanguageByShaderType(GLenum shaderType) {
-        switch (shaderType) {
-            case GL_VERTEX_SHADER:
-                return EShLanguage::EShLangVertex;
-            case GL_FRAGMENT_SHADER:
-                return EShLanguage::EShLangFragment;
-            case GL_COMPUTE_SHADER:
-                return EShLanguage::EShLangCompute;
-            case GL_TESS_CONTROL_SHADER:
-                return EShLanguage::EShLangTessControl;
-            case GL_TESS_EVALUATION_SHADER:
-                return EShLanguage::EShLangTessEvaluation;
-            case GL_GEOMETRY_SHADER:
-                return EShLanguage::EShLangGeometry;
-            default:
-                return EShLanguage::EShLangCount;
-        }
-    }
-    
-    std::vector<unsigned> CompileGLSLToSPIRV(GLenum shaderType, const std::string& source, std::string& infoLog);
-    std::string CompileGLSLToTShader(GLenum shaderType, const std::string& source, glslang::TShader *&shader);
-    std::vector<std::vector<unsigned>> CompileMultipleShadersToSPIRV(const ProgramState& state, ProgramObject& prog, std::string& infoLog);
-    void ReflectSPIRVUniforms(const std::vector<std::vector<unsigned>>& allSpirv, ProgramObject& prog, std::string& infoLog);
-    std::string CompileSPIRVToGLSL(std::vector<unsigned int> spirv, uint glslVersion, bool isES);
-}
-
-#endif //MOBILEGL_GLSLTOOL_H

MobileGL/Config.h

@@ -0,0 +1,147 @@
+// MobileGL - MobileGL/Config.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+#include <Includes.h>
+#include <MG_Backend/BackendObjects.h>
+
+namespace MobileGL::MG_Config {
+    inline const String ProjectName = "MobileGL";
+    inline const String CoreName = "MobileGL Core";
+    inline const String CoreVendor = "MobileGL-Dev (BZLZHH, Swung0x48, Tungsten)";
+    inline const Version CoreVersion = {26, 8, 0, "-dev", VersionType::Development};
+    inline const VersionStringFormatAttrib DefaultVersionStringFormatAttrib = {2, 2, 0, true, true};
+    inline const Uint64 CacheVersion = 0;
+
+    extern BackendType ActiveBackendType;
+
+    // Tri-state override for device-specific quirks: Auto lets the detected device decide,
+    // ForceOn/ForceOff bypass the detection in either direction. ForceOn only bypasses the
+    // device gate - each quirk keeps its structural safety checks.
+    enum class QuirkOverride : Uint8 {
+        Auto = 0,
+        ForceOn,
+        ForceOff,
+    };
+
+    // Preferred DirectVulkan dispatch tier for the glMultiDraw* families. A preference,
+    // never a demand: the renderer clamps it to what the device supports at device
+    // creation, falling down the chain ext -> indirect -> unroll with one log line.
+    enum class MultiDrawMode : Uint8 {
+        Auto = 0, // unset: best supported tier
+        Ext,      // VK_EXT_multi_draw: one vkCmdDrawMultiEXT / vkCmdDrawMultiIndexedEXT
+        Indirect, // multiDrawIndirect feature: one vkCmdDraw*Indirect over a transient command array
+        Unroll,   // one vkCmdDraw* per sub-draw
+    };
+
+    // Preferred DirectGLES emulation tier for glMultiDrawElements(BaseVertex). GLES has no
+    // such entry point in core, so every tier below is an emulation; they differ only in
+    // which driver capability they lean on and how many driver calls a batch costs. Like
+    // the Magma knob this is a preference, clamped at resolution time to what the ES
+    // driver actually supports, with one log line when it falls back.
+    enum class GLESMultiDrawMode : Uint8 {
+        Auto = 0,      // unset: best supported tier
+        Ext,           // one glMultiDrawElementsBaseVertexEXT
+        MultiIndirect, // one glMultiDrawElementsIndirectEXT over a scratch command buffer
+        Indirect,      // one glDrawElementsIndirect per sub-draw over that same buffer
+        BaseVertex,    // one glDrawElementsBaseVertex per sub-draw
+        DrawElements,  // baseVertex folded into a scratch index buffer on the CPU, then plain
+                       // glDrawElements per sub-draw (for drivers with no base-vertex draw at all)
+        Compute,       // a compute shader flattens every sub-draw into one rebased index buffer,
+                       // drawn by a single glDrawElements
+    };
+
+    // Feature toggles parsed once from environment variables in MG_ConfigLoader::Init()
+    // (ConfigLoader.cpp), before the accepted-env map is destroyed. All Bool fields share
+    // one truthy rule: the variable is set, non-empty, not "0", and not "false"
+    // (case-insensitive).
+    //
+    // Env variables intentionally NOT mirrored here (kept as live std::getenv at their
+    // call sites):
+    //   - DISPLAY: X11 session variable, not MobileGL configuration.
+    //   - MOBILEGL_LOG_FILE_PATH: log-file init runs before MG_ConfigLoader::Init
+    //     (see MG_Util/Debug/Log.cpp).
+    //   - MOBILEGL_ASYNC_POOL: a ShaderCompilePool is constructed by binaries that never call
+    //     MobileGL::Initialize() and so never run MG_ConfigLoader::Init - MG_Test's
+    //     JobNodeTest builds pools directly, and it is the suite that runs the whole async
+    //     matrix against both execution engines. Mirroring it here would resolve to the
+    //     default in exactly the tests that exist to tell the engines apart (see
+    //     MG_Util/Async/ShaderCompilePool.cpp, DetectAsyncPoolEngine).
+    struct FeaturesTable {
+        // MOBILEGL_DISABLE_TIMERQUERY: do not advertise or use GPU timer queries.
+        Bool DisableTimerQuery = false;
+        // MOBILEGL_USE_ANGLE: load ANGLE EGL/GLES libraries.
+        Bool UseAngle = false;
+#if defined(MOBILEGL_TRACE_ANGLE_VARIANTS)
+        // MOBILEGL_TRACE_ANGLE_VARIANT: signed trace-APK ANGLE build short hash.
+        String TraceAngleVariant;
+#endif
+        // MOBILEGL_DISABLE_SUBGROUP: force-disable Vulkan shader subgroup support.
+        Bool DisableSubgroup = false;
+        // MOBILEGL_MAGMA_R11G11B10F_FALLBACK: use fallback format for R11G11B10F on Vulkan.
+        Bool MagmaR11G11B10FFallback = false;
+        // MOBILEGL_MAGMA_FRAMESINFLIGHT: requested Magma frames in flight, defaulting to 3.
+        Uint32 MagmaFramesInFlight = 3;
+        // MOBILEGL_AVOID_SAMPLER_MIPMAP_MIN_FILTER: avoid mipmap min filters in samplers,
+        // resolves certain rendering bugs on ANGLE + llvmpipe.
+        Bool AvoidSamplerMipmapMinFilter = false;
+        // MOBILEGL_COHERENT_AS_FLUSH: app-compat for engines (e.g. Flywheel) that write
+        // GPU-read data through persistent GL_MAP_FLUSH_EXPLICIT_BIT maps they never
+        // flush. Persistent FLUSH_EXPLICIT map requests are rewritten to coherent
+        // semantics: writes reach the backend without glFlushMappedBufferRange, and
+        // flush calls on rewritten maps become error-free no-ops. Non-persistent maps
+        // keep spec FLUSH_EXPLICIT behavior.
+        Bool CoherentAsFlush = false;
+        // MOBILEGL_TRACE_SKIP_AUTODESTROY: skip teardown in the ELF destructor (Init.cpp).
+        Bool TraceSkipAutodestroy = false;
+        // MOBILEGL_DISABLE_UBO_RING: force the DirectGLES global-UBO upload back to the
+        // per-draw glBufferSubData path instead of the persistent-mapped ring allocator
+        // (negative control / driver-bug escape hatch).
+        Bool DisableUboRing = false;
+        // MOBILEGL_RELAXED_SEMANTICS: relax strict core-profile rules (e.g. VAO-0 draws,
+        // texture-name reuse after delete) even on contexts that explicitly requested a core
+        // profile. Without it, relaxed semantics still apply to every context that did not
+        // explicitly request a core profile via EGL_CONTEXT_OPENGL_PROFILE_MASK / a >=3.1
+        // version request.
+        Bool RelaxedSemantics = false;
+        // MOBILEGL_QUIRK_SUBGROUP_PREFIX_SCAN: overrides the shader-source quirk that
+        // rewrites the recognized workgroup prefix-scan template on Qualcomm devices with
+        // subgroups wider than 32 lanes (see ShaderSourceProcessor's quirk registry).
+        QuirkOverride SubgroupPrefixScanQuirk = QuirkOverride::Auto;
+        // MOBILEGL_MAGMA_DISABLE_BLENDED_DEPTH_WRITE: overrides the DirectVulkan quirk that
+        // strips depth writes from accumulation-blended pipelines (MIN/MAX or additive
+        // ONE+ONE - the multi-pass depth-equality signature) on drivers without
+        // cross-pipeline vertex position invariance. Sorted-transparency "over" blends,
+        // gl_FragDepth writers, and fully color-masked attachments are exempt (see
+        // PipelineFactory::ShouldSuppressDepthWrite). Auto detects Qualcomm.
+        QuirkOverride MagmaDisableBlendedDepthWriteQuirk = QuirkOverride::Auto;
+        // MOBILEGL_DISABLE_ROBUST_BUFFER_ACCESS: leave the Vulkan robustBufferAccess device
+        // feature off. It is enabled by default to match GL's defined out-of-range fetch
+        // behavior; this escape hatch exists to measure or dodge its GPU cost on a device.
+        Bool DisableRobustBufferAccess = false;
+        // MOBILEGL_MAGMA_MULTIDRAW_MODE: preferred DirectVulkan multi-draw dispatch tier
+        // ("ext" | "indirect" | "unroll", see MultiDrawMode). Clamped to device support;
+        // unset picks the best supported tier.
+        MultiDrawMode MagmaMultiDrawMode = MultiDrawMode::Auto;
+        // MOBILEGL_ESPRYT_MULTIDRAW_MODE: preferred DirectGLES glMultiDrawElements emulation
+        // tier ("ext" | "multiindirect" | "indirect" | "basevertex" | "drawelements" |
+        // "compute", see GLESMultiDrawMode). Clamped to driver support; unset picks the best
+        // supported tier, which never includes "compute" - see the note on its resolution.
+        GLESMultiDrawMode EsprytMultiDrawMode = GLESMultiDrawMode::Auto;
+        // MOBILEGL_ASYNC_SHADER_COMPILE: overrides asynchronous shader compilation. Unset
+        // keeps the built-in default (MG_Util::Async::kAsyncShaderCompileDefault); falsy
+        // forces every glCompileShader/glLinkProgram to run synchronously on the calling
+        // thread AND withdraws GL_KHR_parallel_shader_compile, so the single switch reverts
+        // both the threading and the application-visible behaviour change.
+        QuirkOverride AsyncShaderCompile = QuirkOverride::Auto;
+        // MOBILEGL_ASYNC_SHADER_COMPILE_THREADS: shader-compile worker count. 0 (unset) means
+        // auto, which is min(4, big cores); an explicit value is honoured as given.
+        Uint32 AsyncShaderCompileThreads = 0;
+    };
+    extern FeaturesTable Features;
+} // namespace MobileGL::MG_Config

MobileGL/ConfigLoader.cpp

@@ -0,0 +1,214 @@
+// MobileGL - MobileGL/ConfigLoader.cpp
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#include "Config.h"
+
+#include <cerrno>
+#include <cstdlib>
+
+#ifndef _WIN32
+extern char** environ;
+#endif
+
+namespace MobileGL::MG_Config {
+    // Zero/default-initialized at static-init time (all fields have constexpr-friendly
+    // defaults), so it is safe to read even if MG_ConfigLoader::Init has not run yet.
+    FeaturesTable Features;
+} // namespace MobileGL::MG_Config
+
+namespace MobileGL::MG_ConfigLoader {
+    static UniquePtr<UnorderedMap<String, String>> acceptedEnvVariablesMap;
+
+    static Bool IsAcceptedPrefix(const String& key) {
+        return (key.compare(0, 6, "LIBGL_") == 0 || key.compare(0, 9, "MOBILEGL_") == 0);
+    }
+
+    inline void InitializeAcceptedEnvVariables() {
+        if (!acceptedEnvVariablesMap) {
+            acceptedEnvVariablesMap = MakeUnique<UnorderedMap<String, String>>();
+        } else {
+            acceptedEnvVariablesMap->clear();
+        }
+
+        char** envPtr = nullptr;
+
+#ifdef _WIN32
+        envPtr = _environ;
+#else // POSIX
+        envPtr = ::environ;
+#endif
+
+        if (envPtr == nullptr) return;
+
+        for (char** env = envPtr; *env != nullptr; ++env) {
+            String entry(*env);
+            SizeT pos = entry.find('=');
+            if (pos != String::npos) {
+                String key = entry.substr(0, pos);
+                String value = entry.substr(pos + 1);
+
+                if (IsAcceptedPrefix(key)) {
+                    (*acceptedEnvVariablesMap)[key] = value;
+                    MGLOG_D("Config: Accepted env variable: %s=%s", key.c_str(), value.c_str());
+                }
+            }
+        }
+    }
+
+    inline void QueryEnvVariable(const String& key, String& outValue, const String& defaultValue) {
+        auto it = acceptedEnvVariablesMap->find(key);
+        if (it != acceptedEnvVariablesMap->end()) {
+            outValue = it->second;
+        } else {
+            outValue = defaultValue;
+        }
+    }
+
+    // Unified truthy rule for boolean feature env variables: set, non-empty, not "0",
+    // and not "false" (case-insensitive).
+    static Bool IsTruthyValue(const String& value) {
+        if (value.empty() || value == "0") {
+            return false;
+        }
+        String lowered = value;
+        std::transform(lowered.begin(), lowered.end(), lowered.begin(),
+                       [](unsigned char c) { return static_cast<char>(std::tolower(c)); });
+        return lowered != "false";
+    }
+
+    inline Bool QueryEnvFlag(const String& key) {
+        auto it = acceptedEnvVariablesMap->find(key);
+        return it != acceptedEnvVariablesMap->end() && IsTruthyValue(it->second);
+    }
+
+    // Quirk overrides are tri-state: an unset variable keeps device auto-detection, a truthy
+    // value forces the quirk on, anything else set ("0", "false", "") forces it off.
+    inline MG_Config::QuirkOverride QueryEnvQuirkOverride(const String& key) {
+        auto it = acceptedEnvVariablesMap->find(key);
+        if (it == acceptedEnvVariablesMap->end()) {
+            return MG_Config::QuirkOverride::Auto;
+        }
+        return IsTruthyValue(it->second) ? MG_Config::QuirkOverride::ForceOn
+                                         : MG_Config::QuirkOverride::ForceOff;
+    }
+
+    // Multi-draw mode is a named-value preference: unset keeps Auto (best supported tier),
+    // a recognized name selects that tier as the ceiling, anything else warns and keeps Auto.
+    inline MG_Config::MultiDrawMode QueryEnvMultiDrawMode(const String& key) {
+        auto it = acceptedEnvVariablesMap->find(key);
+        if (it == acceptedEnvVariablesMap->end()) {
+            return MG_Config::MultiDrawMode::Auto;
+        }
+        String lowered = it->second;
+        std::transform(lowered.begin(), lowered.end(), lowered.begin(),
+                       [](unsigned char c) { return static_cast<char>(std::tolower(c)); });
+        if (lowered == "ext") return MG_Config::MultiDrawMode::Ext;
+        if (lowered == "indirect") return MG_Config::MultiDrawMode::Indirect;
+        if (lowered == "unroll") return MG_Config::MultiDrawMode::Unroll;
+        if (lowered.empty() || lowered == "auto") return MG_Config::MultiDrawMode::Auto;
+        MGLOG_W("Config: Ignoring invalid env variable %s='%s'; expected ext|indirect|unroll|auto, using auto",
+                key.c_str(), it->second.c_str());
+        return MG_Config::MultiDrawMode::Auto;
+    }
+
+    // Same contract as QueryEnvMultiDrawMode, over the DirectGLES tier names.
+    inline MG_Config::GLESMultiDrawMode QueryEnvGLESMultiDrawMode(const String& key) {
+        auto it = acceptedEnvVariablesMap->find(key);
+        if (it == acceptedEnvVariablesMap->end()) {
+            return MG_Config::GLESMultiDrawMode::Auto;
+        }
+        String lowered = it->second;
+        std::transform(lowered.begin(), lowered.end(), lowered.begin(),
+                       [](unsigned char c) { return static_cast<char>(std::tolower(c)); });
+        if (lowered == "ext") return MG_Config::GLESMultiDrawMode::Ext;
+        if (lowered == "multiindirect") return MG_Config::GLESMultiDrawMode::MultiIndirect;
+        if (lowered == "indirect") return MG_Config::GLESMultiDrawMode::Indirect;
+        if (lowered == "basevertex") return MG_Config::GLESMultiDrawMode::BaseVertex;
+        if (lowered == "drawelements") return MG_Config::GLESMultiDrawMode::DrawElements;
+        if (lowered == "compute") return MG_Config::GLESMultiDrawMode::Compute;
+        if (lowered.empty() || lowered == "auto") return MG_Config::GLESMultiDrawMode::Auto;
+        MGLOG_W("Config: Ignoring invalid env variable %s='%s'; expected "
+                "ext|multiindirect|indirect|basevertex|drawelements|compute|auto, using auto",
+                key.c_str(), it->second.c_str());
+        return MG_Config::GLESMultiDrawMode::Auto;
+    }
+
+    inline Uint32 QueryEnvUint32(const String& key, Uint32 defaultValue, Uint32 minValue, Uint32 maxValue) {
+        auto it = acceptedEnvVariablesMap->find(key);
+        if (it == acceptedEnvVariablesMap->end()) {
+            return defaultValue;
+        }
+
+        const String& value = it->second;
+        char* parseEnd = nullptr;
+        errno = 0;
+        const unsigned long parsedValue = std::strtoul(value.c_str(), &parseEnd, 10);
+        if (parseEnd == value.c_str() || *parseEnd != '\0' || errno == ERANGE || parsedValue < minValue ||
+            parsedValue > maxValue) {
+            MGLOG_W("Config: Ignoring invalid env variable %s='%s'; expected an integer in range [%u, %u], "
+                    "using default %u",
+                    key.c_str(), value.c_str(), minValue, maxValue, defaultValue);
+            return defaultValue;
+        }
+
+        return static_cast<Uint32>(parsedValue);
+    }
+
+    inline void InitFeatures() {
+        auto& features = MG_Config::Features;
+        features.DisableTimerQuery = QueryEnvFlag("MOBILEGL_DISABLE_TIMERQUERY");
+        features.UseAngle = QueryEnvFlag("MOBILEGL_USE_ANGLE");
+#if defined(MOBILEGL_TRACE_ANGLE_VARIANTS)
+        QueryEnvVariable("MOBILEGL_TRACE_ANGLE_VARIANT", features.TraceAngleVariant, "");
+#endif
+        features.DisableSubgroup = QueryEnvFlag("MOBILEGL_DISABLE_SUBGROUP");
+        features.MagmaR11G11B10FFallback = QueryEnvFlag("MOBILEGL_MAGMA_R11G11B10F_FALLBACK");
+        features.MagmaFramesInFlight = QueryEnvUint32("MOBILEGL_MAGMA_FRAMESINFLIGHT", 3, 1, 64);
+        features.AvoidSamplerMipmapMinFilter =
+            QueryEnvFlag("MOBILEGL_AVOID_SAMPLER_MIPMAP_MIN_FILTER");
+        features.CoherentAsFlush = QueryEnvFlag("MOBILEGL_COHERENT_AS_FLUSH");
+        features.TraceSkipAutodestroy = QueryEnvFlag("MOBILEGL_TRACE_SKIP_AUTODESTROY");
+        features.DisableUboRing = QueryEnvFlag("MOBILEGL_DISABLE_UBO_RING");
+        features.RelaxedSemantics = QueryEnvFlag("MOBILEGL_RELAXED_SEMANTICS");
+        features.SubgroupPrefixScanQuirk = QueryEnvQuirkOverride("MOBILEGL_QUIRK_SUBGROUP_PREFIX_SCAN");
+        features.MagmaDisableBlendedDepthWriteQuirk =
+            QueryEnvQuirkOverride("MOBILEGL_MAGMA_DISABLE_BLENDED_DEPTH_WRITE");
+        features.DisableRobustBufferAccess = QueryEnvFlag("MOBILEGL_DISABLE_ROBUST_BUFFER_ACCESS");
+        features.MagmaMultiDrawMode = QueryEnvMultiDrawMode("MOBILEGL_MAGMA_MULTIDRAW_MODE");
+        features.EsprytMultiDrawMode = QueryEnvGLESMultiDrawMode("MOBILEGL_ESPRYT_MULTIDRAW_MODE");
+        features.AsyncShaderCompile = QueryEnvQuirkOverride("MOBILEGL_ASYNC_SHADER_COMPILE");
+        features.AsyncShaderCompileThreads = QueryEnvUint32("MOBILEGL_ASYNC_SHADER_COMPILE_THREADS", 0, 0, 64);
+    }
+
+    inline void InitBackendType() {
+        String backendTypeStr;
+        QueryEnvVariable("MOBILEGL_BACKEND_TYPE", backendTypeStr, "DirectGLES");
+#define ENTRY(backendType)                                                                                             \
+    if (backendTypeStr == #backendType) {                                                                              \
+        MG_Config::ActiveBackendType = BackendType::backendType;                                                       \
+        MGLOG_I("Config: Active backend type set to " #backendType);                                                   \
+        return;                                                                                                        \
+    }
+        ENTRY(DirectGLES)
+        ENTRY(DirectVulkan)
+        ENTRY(Unknown)
+        MG_Config::ActiveBackendType = BackendType::Unknown;
+#undef ENTRY
+    }
+
+    void Init() {
+        MGLOG_D("Loading configuration from environment variables...");
+        InitializeAcceptedEnvVariables();
+
+        InitBackendType();
+        InitFeatures();
+
+        // Destroy the map since we won't need it anymore
+        acceptedEnvVariablesMap.reset();
+    }
+} // namespace MobileGL::MG_ConfigLoader

MobileGL/Defines.h

@@ -0,0 +1,82 @@
+// MobileGL - MobileGL/Defines.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+
+// ============== Platform-specific definitions and macros ============== //
+#ifdef __ANDROID__
+#undef __ANDROID_API__
+#define __ANDROID_API__ 26 // force Android API level to 26 for compatibility
+#endif
+
+#ifdef _WIN32
+#ifndef NOMINMAX
+#define NOMINMAX 1 // prevent Windows.h from defining min and max macros
+#endif
+#endif
+
+// ================== MobileGL definitions and macros =================== //
+#ifdef _WIN32
+#define MOBILEGL_EXPORT extern "C" __declspec(dllexport)
+#else
+#define MOBILEGL_EXPORT extern "C" __attribute__((visibility("default")))
+#endif
+
+#define MOBILEGL_API MOBILEGL_EXPORT
+
+#define MOBILEGL_GLX_API MOBILEGL_API
+#define MOBILEGL_GL_API MOBILEGL_API
+#define MOBILEGL_EGL_API MOBILEGL_API
+#define MOBILEGL_CGL_API MOBILEGL_API
+#define MOBILEGL_NSOPENGL_API MOBILEGL_API
+#define MOBILEGL_WGL_API MOBILEGL_API
+
+// ====================== MobileGL configurations ======================= //
+#ifndef MOBILEGL_LOG_ACTIVE_LEVEL
+#define MOBILEGL_LOG_ACTIVE_LEVEL MOBILEGL_LOG_LEVEL_INFO
+#endif
+
+#define MOBILEGL_LOG_ENABLE_CONSOLE 0
+#define MOBILEGL_LOG_ENABLE_FILE 1
+#define MOBILEGL_LOG_ENABLE_ANDROID 1
+#define MOBILEGL_ENABLE_SCOPE_MARKER 0
+
+// Require C++23
+// Clang/Android NDK still doesn't have support for that :(
+#if __cplusplus >= 202302L && !__ANDROID__
+#define MOBILEGL_LOG_ENABLE_STACKTRACE 0
+#endif
+
+#ifdef __ANDROID__
+#define MOBILEGL_LOG_FILE_PATH "/sdcard/MG/latest.log"
+#else
+#define MOBILEGL_LOG_FILE_PATH ""
+#endif
+
+#if defined _MSC_VER or defined __MINGW32__ or defined __MINGW64__
+#define TRAP assert(false)
+#elif __clang__
+#define TRAP __builtin_debugtrap()
+#else
+#include <signal.h>
+#define TRAP raise(SIGTRAP)
+#endif
+
+// =============================== Utils ================================ //
+#if MOBILEGL_LOG_ACTIVE_LEVEL <= MOBILEGL_LOG_LEVEL_DEBUG
+    #define MOBILEGL_ASSERT(condition, ...)                                                                                \
+        do {                                                                                                               \
+            if (!(condition)) {                                                                                            \
+                MGLOG_F("Assertion failed" __VA_OPT__(": ") __VA_ARGS__);                                                  \
+                MGLOG_F("  at %s:%d (%s)", __FILE__, __LINE__, __func__);                                                  \
+                TRAP;                                                                                                      \
+            }                                                                                                              \
+        } while (0)
+#else
+    #define MOBILEGL_ASSERT(condition, ...)
+#endif

MobileGL/GlobalObjects.cpp

@@ -0,0 +1,26 @@
+// MobileGL - MobileGL/GlobalObjects.cpp
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#include "Config.h"
+
+namespace MobileGL {
+    namespace MG_Config {
+        BackendType ActiveBackendType;
+    } // namespace MG_Config
+
+    namespace MG_Backend {
+        // Leak-at-exit storage: the UniquePtr itself lives on the heap and is
+        // never destroyed by the runtime, so process exit runs no backend
+        // destructors (static destruction order across TUs is undefined).
+        // Deterministic teardown happens inside the EGL lifecycle instead:
+        // the last eglTerminate calls MobileGL::Destroy(), which .reset()s
+        // these singletons while the process is still healthy.
+        UniquePtr<BackendObject>& pActiveBackendObject = *new UniquePtr<BackendObject>();
+        GlobalBackendFunctionsTable gBackendFunctionsTable;
+    } // namespace MG_Backend
+} // namespace MobileGL

MobileGL/Includes.h

@@ -0,0 +1,149 @@
+// MobileGL - MobileGL/Includes.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+
+// Include significant project headers
+#include "Defines.h"
+#include "MG_Util/PlatformStubs.h"
+
+// Include necessary standard headers
+#include <bit>
+#include <map>
+#include <array>
+#include <ctime>
+#include <mutex>
+#include <queue>
+#include <regex>
+#include <atomic>
+#include <bitset>
+#include <cctype>
+#include <chrono>
+#include <cstdio>
+#include <format>
+#include <memory>
+#include <random>
+#include <string>
+#include <thread>
+#include <vector>
+#include <cassert>
+#include <climits>
+#include <cstdlib>
+#include <cstdarg>
+#include <cstring>
+#include <numeric>
+#include <expected>
+#include <iostream>
+#include <optional>
+#include <algorithm>
+#include <stdexcept>
+#include <functional>
+#include <string_view>
+#include <unordered_map>
+#if __cplusplus >= 202302L && MOBILEGL_LOG_ENABLE_STACKTRACE
+#include <stacktrace>
+#endif
+
+// Include FastSTL
+#include <FastSTL/UnorderedMap.h>
+
+// Include xxHash
+#include <xxhash.h>
+
+// Include spirv_cross
+#include <spirv_cross/spirv_cross_c.h>
+
+// Include OpenGL and EGL headers
+#ifdef GLAPI
+#undef GLAPI
+#endif
+#include <EGL/egl.h>
+#define GL_GLEXT_PROTOTYPES
+#ifndef NO_GL_H
+#include "GL/gl.h"
+#endif
+#include <GL/glcorearb.h>
+#undef GL_GLEXT_PROTOTYPES
+
+#include <GL/glext.h>
+
+#define GL_GLES_PROTOTYPES 0
+#include <GLES3/gl32.h>
+#undef GL_GLES_PROTOTYPES
+
+// Include glslang headers
+#include <glslang/Include/Types.h>
+#include <glslang/Public/ShaderLang.h>
+#include <glslang/SPIRV/GlslangToSpv.h>
+#include <glslang/Include/intermediate.h>
+#include <glslang/MachineIndependent/localintermediate.h>
+
+// Include headers for platform-specific functionality
+#ifdef __linux__
+#include <dlfcn.h>
+#include <pthread.h>
+#endif
+
+#ifdef _WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#include <windows.h>
+#include <processthreadsapi.h>
+#endif
+
+#ifdef __ANDROID__
+#include <unistd.h>
+#include <pthread.h>
+#include <android/log.h>
+#include <android/native_window.h>
+#endif
+
+#ifdef __ANDROID__
+#define VK_USE_PLATFORM_ANDROID_KHR
+#elif _WIN32
+#define VK_USE_PLATFORM_WIN32_KHR
+#elif defined(__APPLE__)
+#define VK_USE_PLATFORM_METAL_EXT
+#elif defined(__linux__)
+#define VK_USE_PLATFORM_XLIB_KHR
+typedef struct _XDisplay Display;
+typedef unsigned long XID;
+typedef XID Window;
+typedef unsigned long VisualID;
+#else
+#warning "VK_USE_PLATFORM_*_KHR not defined for this platform!"
+#endif
+#if defined(VK_USE_PLATFORM_XLIB_KHR)
+#pragma push_macro("Bool")
+#pragma push_macro("None")
+#pragma push_macro("Always")
+#pragma push_macro("Status")
+#pragma push_macro("LSBFirst")
+#pragma push_macro("DestroyAll")
+#endif
+#include <vulkan/vulkan.h>
+#if defined(VK_USE_PLATFORM_XLIB_KHR)
+#pragma pop_macro("DestroyAll")
+#pragma pop_macro("LSBFirst")
+#pragma pop_macro("Status")
+#pragma pop_macro("Always")
+#pragma pop_macro("None")
+#pragma pop_macro("Bool")
+#endif
+
+#ifdef TRACY_ENABLE
+#include <tracy/Tracy.hpp>
+#define TRACY_ZONECOLOR_ENTRY 0xFF0000
+#define TRACY_ZONECOLOR_FRONTEND 0x00FF00
+#define TRACY_ZONECOLOR_BACKEND 0x00FF00
+#endif
+
+// Post-includes for significant project headers
+#include "MG_Util/Debug/Log.h"
+#include "MG_Util/Types.h"

MobileGL/Init.cpp

@@ -0,0 +1,147 @@
+// MobileGL - MobileGL/Init.cpp
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#include "Init.h"
+#include "Config.h"
+#include <MG_Backend/BackendObjects.h>
+#include <MG_Backend/DirectVulkan/DirectVulkan.h>
+#include <MG_State/GLState/Core.h>
+#include <MG_State/EGLState/Core.h>
+#include <MG_Impl/GLImpl/Texture/ProxyTexture.h>
+#include <MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.h>
+#include <MG_Impl/GLImpl/Sync/GL_Sync.h>
+#include <MG_Util/Async/ShaderCompilePool.h>
+#include <MG_Util/ShaderTranspiler/ShaderCompiler.h>
+
+#include <atomic>
+#include <mutex>
+
+namespace MobileGL {
+    namespace {
+        std::atomic<Bool> g_isInitialized = false;
+        thread_local Bool tl_initializing = false;
+
+        std::mutex& InitMutex() {
+            static std::mutex mutex;
+            return mutex;
+        }
+
+        void DestroyImpl(Bool logLifecycle) {
+            if (!g_isInitialized) {
+                return;
+            }
+
+            if (logLifecycle) {
+                MGLOG_I("MobileGL closing...");
+            }
+            // First, before anything else is torn down. In-flight compile/link jobs own
+            // their own inputs and are safe against everything below EXCEPT glslang's
+            // process globals and the TShader/TProgram objects hanging off pGLContext,
+            // both of which this function is about to destroy. This is the one
+            // cancellation path in the whole design that waits.
+            MG_Util::Async::ShaderCompilePool::Get().StopAndDrain();
+            // GL syncs die with their contexts, and every context is gone by the
+            // time full teardown runs: drain the live-sync registry while the
+            // backend function table can still release the backend handles (and
+            // before a re-initialized library could pair them with the wrong
+            // backend's DeleteSync).
+            MG_Impl::GLImpl::DestroyAllSyncObjects();
+            MG_Backend::pActiveBackendObject.reset();
+            MG_State::pGLContext.reset();
+            MG_State::pEGLContext.reset();
+            MG_Impl::GLImpl::TextureImpl::pProxyTextureManager.reset();
+            MG_Impl::GLImpl::FramebufferImpl::pDefaultFramebufferInfo.reset();
+            // Must run AFTER pGLContext.reset(). FinalizeProcess -> ShFinalize deletes
+            // glslang's process-wide pool allocator and every cached built-in symbol table,
+            // while the TShader/TProgram objects owned by the shader and program objects
+            // still reference levels adopted from those tables. Finalizing first left live
+            // glslang objects pointing at freed memory for the rest of the teardown.
+            glslang::FinalizeProcess();
+            // Immediately after, and never apart from it: FinalizeProcess just deleted the
+            // built-in symbol tables the prewarm latch stands for, so leaving it set would
+            // make the next Initialize() skip a prewarm it genuinely needs.
+            MG_Util::ShaderTranspiler::ShaderCompiler::ResetPrewarmLatch();
+            MG_Backend::gBackendFunctionsTable = {};
+            g_isInitialized = false;
+            if (logLifecycle) {
+                MG_Util::Debug::Close();
+            }
+
+            // TODO: add and use Destroy functions for other subsystems
+        }
+    }
+
+    void Initialize() {
+        if (g_isInitialized) {
+            MGLOG_D("MobileGL already initialized; skipping duplicate Initialize()");
+            return;
+        }
+
+        MG_Util::Debug::InitFile();
+        MGLOG_I("Initializing MobileGL...");
+        MG_ConfigLoader::Init();
+        MGLOG_I("Config loaded");
+        MG_State::Init();
+        MGLOG_D("MG_State initialized");
+        MG_Backend::Init();
+        MGLOG_D("MG_Backend initialized");
+        MG_Impl::Init();
+        MGLOG_D("MG_Impl initialized");
+        glslang::InitializeProcess();
+        // On the GL thread, before any worker can exist. glslang builds its built-in symbol
+        // tables lazily under a process-wide lock held for the whole build, so without this
+        // the first concurrent compiles of a shaderpack all serialize behind the very first
+        // parse and asynchronous compilation looks like it is doing nothing.
+        //
+        // Gated on the flag, because the problem it solves only exists when there are
+        // workers: with compilation synchronous, nothing ever contends for that lock and the
+        // three throwaway parses buy nothing - they just add to every eglInitialize. Read the
+        // flag here rather than inside PrewarmBuiltins so ShaderCompiler keeps no dependency
+        // on the async subsystem (ProgramUtilTest compiles that file without it).
+        if (MG_Util::Async::AsyncShaderCompileEnabled()) {
+            MG_Util::ShaderTranspiler::ShaderCompiler::PrewarmBuiltins();
+        }
+        MGLOG_D("glslang initialized");
+        g_isInitialized = true;
+        MGLOG_I("MobileGL initialized");
+    }
+
+    void EnsureInitialized() {
+        if (g_isInitialized.load(std::memory_order_acquire)) {
+            return;
+        }
+        // Re-entrant call while this thread is already inside Initialize()
+        // (e.g. an init step routing back through a public entry point).
+        if (tl_initializing) {
+            return;
+        }
+        const std::lock_guard<std::mutex> lock(InitMutex());
+        if (g_isInitialized.load(std::memory_order_acquire)) {
+            return;
+        }
+        tl_initializing = true;
+        Initialize();
+        tl_initializing = false;
+    }
+
+    void Destroy() {
+        DestroyImpl(true);
+    }
+
+    // MobileGL's lifecycle is owned entirely by the host-API layers
+    // (EGL/WGL/CGL): initialization happens lazily on the first entry point
+    // via EnsureInitialized(), and full teardown happens deterministically
+    // when the last EGL display is terminated with nothing current (EGLImpl
+    // calls Destroy()). There is intentionally no backend-initializing static
+    // constructor, no static destructor, and no DllMain: the global singletons
+    // use leak-at-exit storage (see GlobalObjects.cpp), so a process that exits
+    // without eglTerminate simply leaks them to the OS instead of running
+    // backend destructors during static teardown. macOS has a lightweight
+    // dyld constructor that installs NSOpenGL dispatch hooks only; full backend
+    // initialization still enters here from the first hooked CGL context.
+} // namespace MobileGL

MobileGL/Init.h

@@ -0,0 +1,38 @@
+// MobileGL - MobileGL/Init.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+#include "Includes.h"
+
+namespace MobileGL {
+    void Initialize();
+    // Thread-safe, idempotent, and re-entrant wrapper around Initialize().
+    // Host layers (EGL/WGL/CGL entry points) call this lazily on first use so
+    // full backend initialization never depends on ELF/DLL static constructors,
+    // and so a fresh init can follow a full Destroy() (e.g. after the last
+    // eglTerminate). The macOS dyld bootstrap installs only lightweight
+    // NSOpenGL method hooks.
+    void EnsureInitialized();
+    void Destroy();
+
+    namespace MG_Util::Debug {
+        void InitFile();
+    } // namespace MG_Util::Debug
+
+    namespace MG_ConfigLoader {
+        void Init();
+    } // namespace MG_ConfigLoader
+
+    namespace MG_Backend {
+        void Init();
+    } // namespace MG_Backend
+
+    namespace MG_Impl {
+        void Init();
+    } // namespace MG_Impl
+} // namespace MobileGL

MobileGL/MG_Backend/BackendObject.cpp

@@ -0,0 +1,495 @@
+// MobileGL - MobileGL/MG_Backend/BackendObject.cpp
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#include "BackendObject.h"
+#include "MG_Util/Converters/MGToStr/TextureEnumConverter.h"
+#include <algorithm>
+#include <cstring>
+#include <iomanip>
+#include <sstream>
+
+namespace MobileGL::MG_Backend {
+    namespace {
+        Bool IsReleaseCurrentRequest(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) {
+            (void)dpy;
+            return draw == EGL_NO_SURFACE && read == EGL_NO_SURFACE && ctx == EGL_NO_CONTEXT;
+        }
+
+        std::thread::id CurrentThreadKey() {
+            return std::this_thread::get_id();
+        }
+
+        const char* GetFormatCapabilitySupportString(const FormatCapabilityCache& cache,
+                                                     SizeT targetIndex,
+                                                     SizeT formatIndex,
+                                                     FormatCapability capability) {
+            if (HasFormatCapability(cache.FullCaps[targetIndex][formatIndex], capability)) return "Full";
+            if (HasFormatCapability(cache.CaveatCaps[targetIndex][formatIndex], capability)) return "Caveat";
+            return "None";
+        }
+
+        SizeT GetPrintedFormatNameWidth() {
+            SizeT width = 0;
+            for (SizeT formatIndex = 0; formatIndex < kFormatCapabilityFormatCount; ++formatIndex) {
+                const auto format = static_cast<TextureInternalFormat>(formatIndex);
+                width = std::max(width, MG_Util::ConvertTextureInternalFormatToString(format).size());
+            }
+            return width;
+        }
+
+        SizeT GetCapabilityColumnWidth(FormatCapability capability) {
+            SizeT width = std::strlen(GetFormatCapabilityName(capability));
+            width = std::max<SizeT>(width, std::strlen("Caveat"));
+            return width;
+        }
+
+        String BuildFormatCapabilityHeader(SizeT formatNameWidth) {
+            std::ostringstream line;
+            line << std::left << std::setw(static_cast<Int>(formatNameWidth)) << "";
+            for (FormatCapability capability : kReportedFormatCapabilities) {
+                line << " | " << std::left << std::setw(static_cast<Int>(GetCapabilityColumnWidth(capability)))
+                     << GetFormatCapabilityName(capability);
+            }
+            return line.str();
+        }
+
+        String BuildFormatCapabilityRow(const FormatCapabilityCache& cache,
+                                        SizeT targetIndex,
+                                        SizeT formatIndex,
+                                        SizeT formatNameWidth) {
+            const auto format = static_cast<TextureInternalFormat>(formatIndex);
+            std::ostringstream line;
+            line << std::left << std::setw(static_cast<Int>(formatNameWidth))
+                 << MG_Util::ConvertTextureInternalFormatToString(format);
+            for (FormatCapability capability : kReportedFormatCapabilities) {
+                line << " | " << std::left << std::setw(static_cast<Int>(GetCapabilityColumnWidth(capability)))
+                     << GetFormatCapabilitySupportString(cache, targetIndex, formatIndex, capability);
+            }
+            return line.str();
+        }
+    } // namespace
+
+    void FormatCapabilityCache::Clear() {
+        for (auto& row : FullCaps) {
+            row.fill(FormatCapabilityFlags{});
+        }
+        for (auto& row : CaveatCaps) {
+            row.fill(FormatCapabilityFlags{});
+        }
+        for (auto& row : SampleCounts) {
+            for (auto& counts : row) {
+                counts.clear();
+            }
+        }
+    }
+
+    Bool HasFormatCapability(FormatCapabilityFlags caps, FormatCapability capability) {
+        return static_cast<Bool>(caps & capability);
+    }
+
+    SizeT GetFormatCapabilityTargetIndex(TextureTarget target) {
+        if (target == TextureTarget::Unknown || static_cast<Int>(target) < 0 ||
+            static_cast<SizeT>(target) >= kFormatCapabilityTextureTargetCount) {
+            return kFormatCapabilityTargetCount;
+        }
+        return static_cast<SizeT>(target);
+    }
+
+    SizeT GetRenderbufferFormatCapabilityTargetIndex() {
+        return kFormatCapabilityRenderbufferTargetIndex;
+    }
+
+    const char* GetFormatCapabilityName(FormatCapability capability) {
+        switch (capability) {
+        case FormatCapability::Creatable:
+            return "Creatable";
+        case FormatCapability::Sampled:
+            return "Sampled";
+        case FormatCapability::LinearFilter:
+            return "LinearFilter";
+        case FormatCapability::GenerateMipmap:
+            return "GenerateMipmap";
+        case FormatCapability::TextureGather:
+            return "TextureGather";
+        case FormatCapability::TextureShadow:
+            return "TextureShadow";
+        case FormatCapability::FramebufferRenderable:
+            return "FramebufferRenderable";
+        case FormatCapability::FramebufferLayered:
+            return "FramebufferLayered";
+        case FormatCapability::MultisampleTexture:
+            return "MultisampleTexture";
+        case FormatCapability::MultisampleRenderbuffer:
+            return "MultisampleRenderbuffer";
+        case FormatCapability::ColorAttachment:
+            return "ColorAttachment";
+        case FormatCapability::DepthAttachment:
+            return "DepthAttachment";
+        case FormatCapability::StencilAttachment:
+            return "StencilAttachment";
+        case FormatCapability::TextureBuffer:
+            return "TextureBuffer";
+        }
+        return "Unknown";
+    }
+
+    String GetFormatCapabilityTargetName(SizeT targetIndex) {
+        if (targetIndex == kFormatCapabilityRenderbufferTargetIndex) {
+            return "Renderbuffer";
+        }
+        if (targetIndex >= kFormatCapabilityTextureTargetCount) {
+            return "Unknown";
+        }
+        return MG_Util::ConvertTextureTargetToString(static_cast<TextureTarget>(targetIndex));
+    }
+
+    void PrintFormatCapabilities(const FormatCapabilityCache& cache) {
+        const SizeT formatNameWidth = GetPrintedFormatNameWidth();
+
+        MGLOG_D("Backend format capabilities:");
+        for (SizeT targetIndex = 0; targetIndex < kFormatCapabilityTargetCount; ++targetIndex) {
+            MGLOG_D("");
+            const String targetName = GetFormatCapabilityTargetName(targetIndex);
+            MGLOG_D("- %s", targetName.c_str());
+            const String header = BuildFormatCapabilityHeader(formatNameWidth);
+            MGLOG_D("%s", header.c_str());
+            for (SizeT formatIndex = 0; formatIndex < kFormatCapabilityFormatCount; ++formatIndex) {
+                const String row = BuildFormatCapabilityRow(cache, targetIndex, formatIndex, formatNameWidth);
+                MGLOG_D("%s", row.c_str());
+            }
+        }
+    }
+
+    Bool BackendObject::InitializeEGLDisplay(EGLDisplay dpy, EGLint* major, EGLint* minor) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        if (dpy == EGL_NO_DISPLAY) {
+            MGLOG_E("InitializeEGLDisplay failed: invalid EGLDisplay");
+            return false;
+        }
+
+        if (m_eglDisplayInitialized && m_eglDisplay != dpy) {
+            MGLOG_E("InitializeEGLDisplay failed: backend already bound to a different EGLDisplay");
+            return false;
+        }
+
+        m_eglDisplay = dpy;
+        m_eglDisplayInitialized = true;
+        if (major) {
+            *major = 1;
+        }
+        if (minor) {
+            *minor = 5;
+        }
+        return true;
+    }
+
+    Bool BackendObject::CreateEGLWindowSurface(EGLSurface surface, const WindowHandle& handle) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        return RegisterEGLWindowSurface(surface, handle) && ActivateEGLSurface(surface);
+    }
+
+    Bool BackendObject::ResizeEGLWindowSurface(EGLSurface surface, Uint32 width, Uint32 height) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        auto surfaceIt = m_eglSurfaces.find(surface);
+        if (surfaceIt == m_eglSurfaces.end() || surfaceIt->second.Kind != SurfaceKind::Window) {
+            MGLOG_E("ResizeEGLWindowSurface failed: no window surface is initialized");
+            return false;
+        }
+        surfaceIt->second.Window.Width = width;
+        surfaceIt->second.Window.Height = height;
+        if (m_eglSurface == surface) {
+            m_windowHandle.Width = width;
+            m_windowHandle.Height = height;
+        }
+        return true;
+    }
+
+    Bool BackendObject::CreateEGLPbufferSurface(EGLSurface surface, EGLint width, EGLint height) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        return RegisterEGLPbufferSurface(surface, width, height) && ActivateEGLSurface(surface);
+    }
+
+    Bool BackendObject::RegisterEGLWindowSurface(EGLSurface surface, const WindowHandle& handle) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        if (!m_eglDisplayInitialized) {
+            MGLOG_E("RegisterEGLWindowSurface failed: EGL display is not initialized");
+            return false;
+        }
+        if (surface == EGL_NO_SURFACE) {
+            MGLOG_E("RegisterEGLWindowSurface failed: invalid EGLSurface");
+            return false;
+        }
+        if (handle.Backend == WindowBackend::Unknown || !handle.Handle) {
+            MGLOG_E("RegisterEGLWindowSurface failed: invalid native window handle");
+            return false;
+        }
+
+        auto& state = m_eglSurfaces[surface];
+        state = EGLSurfaceState{
+            .Kind = SurfaceKind::Window,
+            .Window = handle,
+            .Width = static_cast<EGLint>(std::max<Uint32>(handle.Width, 1)),
+            .Height = static_cast<EGLint>(std::max<Uint32>(handle.Height, 1)),
+        };
+        return true;
+    }
+
+    Bool BackendObject::RegisterEGLPbufferSurface(EGLSurface surface, EGLint width, EGLint height) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        if (!m_eglDisplayInitialized) {
+            MGLOG_E("RegisterEGLPbufferSurface failed: EGL display is not initialized");
+            return false;
+        }
+        if (surface == EGL_NO_SURFACE) {
+            MGLOG_E("RegisterEGLPbufferSurface failed: invalid EGLSurface");
+            return false;
+        }
+        if (width <= 0 || height <= 0) {
+            MGLOG_E("RegisterEGLPbufferSurface failed: invalid size %dx%d", width, height);
+            return false;
+        }
+
+        m_eglSurfaces[surface] = EGLSurfaceState{
+            .Kind = SurfaceKind::Pbuffer,
+            .Width = width,
+            .Height = height,
+        };
+        return true;
+    }
+
+    const BackendObject::EGLSurfaceState* BackendObject::GetRegisteredEGLSurface(EGLSurface surface) const {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        auto surfaceIt = m_eglSurfaces.find(surface);
+        return surfaceIt == m_eglSurfaces.end() ? nullptr : &surfaceIt->second;
+    }
+
+    Bool BackendObject::ActivateEGLSurface(EGLSurface surface) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        const auto* surfaceState = GetRegisteredEGLSurface(surface);
+        if (!surfaceState) {
+            MGLOG_E("ActivateEGLSurface failed: EGL surface is not registered");
+            return false;
+        }
+        if (m_eglSurfaceInitialized && m_eglSurface == surface) {
+            return true;
+        }
+
+        if (surfaceState->Kind == SurfaceKind::Window) {
+            SetWindowHandle(surfaceState->Window);
+            if (!InitWindowSurface()) {
+                MGLOG_E("ActivateEGLSurface failed: backend InitWindowSurface failed");
+                return false;
+            }
+        } else if (surfaceState->Kind == SurfaceKind::Pbuffer) {
+            if (!InitPbufferSurface(surfaceState->Width, surfaceState->Height)) {
+                MGLOG_E("ActivateEGLSurface failed: backend InitPbufferSurface failed");
+                return false;
+            }
+        } else {
+            MGLOG_E("ActivateEGLSurface failed: unsupported surface kind");
+            return false;
+        }
+
+        m_eglSurface = surface;
+        m_eglSurfaceInitialized = true;
+        m_eglSurfaceKind = surfaceState->Kind;
+        m_eglCurrentThreads.clear();
+        m_backendCapabilitiesInitialized = false;
+        return true;
+    }
+
+    Bool BackendObject::MakeEGLCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        const auto threadKey = CurrentThreadKey();
+        if (IsReleaseCurrentRequest(dpy, draw, read, ctx)) {
+            ReleaseEGLCurrentThread(threadKey);
+            return true;
+        }
+
+        if (!m_eglDisplayInitialized || m_eglDisplay != dpy) {
+            MGLOG_E("MakeEGLCurrent failed: EGL display mismatch or not initialized");
+            return false;
+        }
+        if (!m_eglSurfaceInitialized) {
+            if (draw != read || !ActivateEGLSurface(draw)) {
+                MGLOG_E("MakeEGLCurrent failed: EGL surface is not initialized");
+                return false;
+            }
+        }
+        if (!GetRegisteredEGLSurface(draw) || !GetRegisteredEGLSurface(read)) {
+            MGLOG_E("MakeEGLCurrent failed: EGL surface is not registered");
+            return false;
+        }
+        if (draw != read) {
+            MGLOG_E("MakeEGLCurrent failed: separate draw/read surfaces are not supported");
+            return false;
+        }
+        if (draw != m_eglSurface && !ActivateEGLSurface(draw)) {
+            MGLOG_E("MakeEGLCurrent failed: EGL surface is not backed by this backend");
+            return false;
+        }
+        if (draw == EGL_NO_SURFACE || read == EGL_NO_SURFACE || ctx == EGL_NO_CONTEXT) {
+            MGLOG_E("MakeEGLCurrent failed: draw/read/context is invalid");
+            return false;
+        }
+
+        if (!m_backendCapabilitiesInitialized) {
+            if (!InitCapabilities()) {
+                MGLOG_E("MakeEGLCurrent failed: InitCapabilities failed");
+                return false;
+            }
+            m_backendCapabilitiesInitialized = true;
+        }
+
+        ReleaseEGLCurrentThread(threadKey);
+        m_eglCurrentThreads[threadKey] = EGLCurrentState{
+            .Display = dpy,
+            .DrawSurface = draw,
+            .ReadSurface = read,
+            .Context = ctx,
+        };
+        return true;
+    }
+
+    void BackendObject::ResetEGLRuntimeState() {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        m_eglSurfaceInitialized = false;
+        m_backendCapabilitiesInitialized = false;
+        m_eglSurfaceKind = SurfaceKind::None;
+        m_eglSurface = EGL_NO_SURFACE;
+        m_windowHandle = {};
+        m_eglCurrentThreads.clear();
+    }
+
+    Bool BackendObject::SwapEGLBuffers(EGLDisplay dpy, EGLSurface draw) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        if (!m_eglDisplayInitialized || m_eglDisplay != dpy) {
+            MGLOG_E("SwapEGLBuffers failed: EGL display mismatch or not initialized");
+            return false;
+        }
+        const auto currentIt = m_eglCurrentThreads.find(CurrentThreadKey());
+        if (currentIt == m_eglCurrentThreads.end()) {
+            MGLOG_E("SwapEGLBuffers failed: no current context attached");
+            return false;
+        }
+        if (currentIt->second.Display != dpy || currentIt->second.DrawSurface != draw ||
+            currentIt->second.Context == EGL_NO_CONTEXT) {
+            MGLOG_E("SwapEGLBuffers failed: draw surface is not current on this thread");
+            return false;
+        }
+        if (!m_eglSurfaceInitialized || draw == EGL_NO_SURFACE || draw != m_eglSurface) {
+            MGLOG_E("SwapEGLBuffers failed: invalid draw surface");
+            return false;
+        }
+
+        const auto& backendFunctions = GetBackendFunctions();
+        if (!backendFunctions.Present) {
+            MGLOG_E("SwapEGLBuffers failed: backend Present function is null");
+            return false;
+        }
+
+        backendFunctions.Present();
+        return true;
+    }
+
+    void BackendObject::SetEGLSwapInterval(Int interval) {
+        const auto& backendFunctions = GetBackendFunctions();
+        if (backendFunctions.SetSwapInterval) {
+            backendFunctions.SetSwapInterval(interval);
+        }
+    }
+
+    Bool BackendObject::IsEGLSurfaceCurrent(EGLSurface surface) const {
+        if (surface == EGL_NO_SURFACE) {
+            return false;
+        }
+        for (const auto& current : m_eglCurrentThreads) {
+            if (current.second.DrawSurface == surface || current.second.ReadSurface == surface) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    void BackendObject::DestroyPendingEGLSurfaceIfUnused(EGLSurface surface) {
+        auto surfaceIt = m_eglSurfaces.find(surface);
+        if (surfaceIt == m_eglSurfaces.end() || !surfaceIt->second.DestroyPending ||
+            IsEGLSurfaceCurrent(surface)) {
+            return;
+        }
+
+        m_eglSurfaces.erase(surfaceIt);
+        if (m_eglSurface == surface) {
+            OnEGLSurfaceReleased(surface);
+            ResetEGLRuntimeState();
+        }
+    }
+
+    void BackendObject::ReleaseEGLCurrentThread(const std::thread::id& threadKey) {
+        auto currentIt = m_eglCurrentThreads.find(threadKey);
+        if (currentIt == m_eglCurrentThreads.end()) {
+            return;
+        }
+
+        const EGLSurface drawSurface = currentIt->second.DrawSurface;
+        const EGLSurface readSurface = currentIt->second.ReadSurface;
+        m_eglCurrentThreads.erase(currentIt);
+        DestroyPendingEGLSurfaceIfUnused(drawSurface);
+        DestroyPendingEGLSurfaceIfUnused(readSurface);
+    }
+
+    void BackendObject::ReleaseEGLSurface(EGLSurface surface) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        auto surfaceIt = m_eglSurfaces.find(surface);
+        if (surfaceIt == m_eglSurfaces.end()) {
+            return;
+        }
+
+        if (IsEGLSurfaceCurrent(surface)) {
+            surfaceIt->second.DestroyPending = true;
+            return;
+        }
+
+        m_eglSurfaces.erase(surfaceIt);
+        if (m_eglSurface == surface) {
+            OnEGLSurfaceReleased(surface);
+            ResetEGLRuntimeState();
+        }
+    }
+
+    void BackendObject::ReleaseEGLResources() {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        ResetEGLRuntimeState();
+        m_eglSurfaces.clear();
+        m_eglDisplay = EGL_NO_DISPLAY;
+        m_eglDisplayInitialized = false;
+    }
+
+    void BackendObject::SetWindowHandle(const WindowHandle& handle) {
+        const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
+        m_windowHandle = handle;
+    }
+
+    const FormatCapabilityCache& BackendObject::GetFormatCapabilities() const {
+        return m_formatCapabilities;
+    }
+
+    FormatCapabilityCache& BackendObject::MutableFormatCapabilities() {
+        return m_formatCapabilities;
+    }
+
+    Bool BackendObject::InitPbufferSurface(EGLint width, EGLint height) {
+        (void)width;
+        (void)height;
+        return false;
+    }
+
+    void BackendObject::OnEGLSurfaceReleased(EGLSurface surface) {
+        (void)surface;
+    }
+} // namespace MobileGL::MG_Backend

MobileGL/MG_Backend/BackendObject.h

@@ -0,0 +1,496 @@
+// MobileGL - MobileGL/MG_Backend/BackendObject.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+#include <Includes.h>
+#include "MG_State/GLState/TextureState/TextureEnum.h"
+
+namespace MobileGL {
+    namespace MG_State::GLState {
+        class FramebufferObject;
+        class ITextureObject;
+    }
+
+    enum class BackendType {
+        DirectGLES,
+        DirectVulkan,
+        BackendTypeCount,
+        Unknown = -1
+    };
+
+    namespace MG_Backend {
+        enum class FormatCapability : Uint64 {
+            Creatable = 1ull << 0,
+
+            Sampled = 1ull << 1,
+            LinearFilter = 1ull << 2,
+            GenerateMipmap = 1ull << 3,
+            TextureGather = 1ull << 4,
+            TextureShadow = 1ull << 5,
+
+            FramebufferRenderable = 1ull << 6,
+            FramebufferLayered = 1ull << 7,
+            MultisampleTexture = 1ull << 8,
+            MultisampleRenderbuffer = 1ull << 9,
+
+            ColorAttachment = 1ull << 10,
+            DepthAttachment = 1ull << 11,
+            StencilAttachment = 1ull << 12,
+
+            TextureBuffer = 1ull << 13
+        };
+
+        using FormatCapabilityFlags = Flags<FormatCapability>;
+
+        inline constexpr Array<FormatCapability, 14> kReportedFormatCapabilities = {
+            FormatCapability::Creatable,
+            FormatCapability::Sampled,
+            FormatCapability::LinearFilter,
+            FormatCapability::GenerateMipmap,
+            FormatCapability::TextureGather,
+            FormatCapability::TextureShadow,
+            FormatCapability::FramebufferRenderable,
+            FormatCapability::FramebufferLayered,
+            FormatCapability::MultisampleTexture,
+            FormatCapability::MultisampleRenderbuffer,
+            FormatCapability::ColorAttachment,
+            FormatCapability::DepthAttachment,
+            FormatCapability::StencilAttachment,
+            FormatCapability::TextureBuffer,
+        };
+
+        inline constexpr SizeT kFormatCapabilityTextureTargetCount =
+            static_cast<SizeT>(TextureTarget::TextureTargetCount);
+        inline constexpr SizeT kFormatCapabilityRenderbufferTargetIndex = kFormatCapabilityTextureTargetCount;
+        inline constexpr SizeT kFormatCapabilityTargetCount = kFormatCapabilityTextureTargetCount + 1;
+        inline constexpr SizeT kFormatCapabilityFormatCount =
+            static_cast<SizeT>(TextureInternalFormat::TextureInternalFormatCount);
+
+        using FormatCapabilityTable =
+            Array<Array<FormatCapabilityFlags, kFormatCapabilityFormatCount>, kFormatCapabilityTargetCount>;
+        using FormatSampleCountTable =
+            Array<Array<Vector<Int>, kFormatCapabilityFormatCount>, kFormatCapabilityTargetCount>;
+
+        struct FormatCapabilityCache {
+            FormatCapabilityTable FullCaps{};
+            FormatCapabilityTable CaveatCaps{};
+            FormatSampleCountTable SampleCounts{};
+
+            void Clear();
+        };
+
+        Bool HasFormatCapability(FormatCapabilityFlags caps, FormatCapability capability);
+        SizeT GetFormatCapabilityTargetIndex(TextureTarget target);
+        SizeT GetRenderbufferFormatCapabilityTargetIndex();
+        const char* GetFormatCapabilityName(FormatCapability capability);
+        String GetFormatCapabilityTargetName(SizeT targetIndex);
+        void PrintFormatCapabilities(const FormatCapabilityCache& cache);
+
+        // Opaque backend fence-sync handle, created by GLFunctionsTable::FenceSync
+        // and released by GLFunctionsTable::DeleteSync.
+        using BackendSyncHandle = void*;
+
+        // Opaque backend timer-query handle, created by
+        // GLFunctionsTable::BeginTimeElapsedQuery / QueryCounterTimestamp and
+        // released by GLFunctionsTable::DeleteBackendQuery.
+        using BackendQueryHandle = void*;
+
+        struct GLFunctionsTable {
+            void (*DrawArrays)(GLenum mode, GLint first, GLsizei count);
+            void (*DrawElements)(GLenum mode, GLsizei count, GLenum type, const void* indices);
+            void (*DrawElementsBaseVertex)(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                           GLint basevertex);
+            void (*MultiDrawArrays)(GLenum mode, const GLint* first, const GLsizei* count, GLsizei drawcount);
+            void (*MultiDrawElements)(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                                      GLsizei drawcount);
+            void (*MultiDrawElementsBaseVertex)(GLenum mode, const GLsizei* count, GLenum type,
+                                                const GLvoid* const* indices, GLsizei drawcount,
+                                                const GLint* basevertex);
+            void (*MultiDrawElementsIndirect)(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount,
+                                              GLsizei stride);
+            void (*MultiDrawArraysIndirect)(GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride);
+            void (*MultiDrawElementsIndirectCount)(GLenum mode, GLenum type, const void* indirect,
+                                                   GLintptr drawcount, GLsizei maxdrawcount, GLsizei stride);
+            void (*MultiDrawArraysIndirectCount)(GLenum mode, const void* indirect, GLintptr drawcount,
+                                                 GLsizei maxdrawcount, GLsizei stride);
+            void (*DrawRangeElementsBaseVertex)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
+                                                const void* indices, GLint basevertex);
+            void (*DrawRangeElements)(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
+                                      const void* indices);
+            void (*DrawElementsInstancedBaseVertexBaseInstance)(GLenum mode, GLsizei count, GLenum type,
+                                                                const void* indices, GLsizei instancecount,
+                                                                GLint basevertex, GLuint baseinstance);
+            void (*DrawElementsInstancedBaseVertex)(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                                    GLsizei instancecount, GLint basevertex);
+            void (*DrawElementsInstancedBaseInstance)(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                                      GLsizei instancecount, GLuint baseinstance);
+            void (*DrawElementsInstanced)(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                          GLsizei instancecount);
+            void (*DrawArraysInstancedBaseInstance)(GLenum mode, GLint first, GLsizei count, GLsizei instancecount,
+                                                    GLuint baseinstance);
+            void (*DrawArraysInstanced)(GLenum mode, GLint first, GLsizei count, GLsizei instancecount);
+            void (*DrawElementsIndirect)(GLenum mode, GLenum type, const void* indirect);
+            void (*DrawArraysIndirect)(GLenum mode, const void* indirect);
+            void (*Clear)(GLbitfield mask);
+            void (*ClearBufferfi)(GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
+            void (*ClearBufferfv)(GLenum buffer, GLint drawbuffer, const GLfloat* value);
+            void (*ClearBufferuiv)(GLenum buffer, GLint drawbuffer, const GLuint* value);
+            void (*ClearBufferiv)(GLenum buffer, GLint drawbuffer, const GLint* value);
+            void (*ClearNamedFramebufferfv)(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                            GLenum buffer, GLint drawbuffer, const GLfloat* value);
+            void (*ClearNamedFramebufferfi)(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                            GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
+            void (*ClearNamedFramebufferiv)(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                            GLenum buffer, GLint drawbuffer, const GLint* value);
+            void (*ClearNamedFramebufferuiv)(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                             GLenum buffer, GLint drawbuffer, const GLuint* value);
+            void (*BlitFramebuffer)(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0,
+                                    GLint dstX1, GLint dstY1, GLbitfield mask, GLenum filter);
+            void (*BlitNamedFramebuffer)(const SharedPtr<MG_State::GLState::FramebufferObject>& readFramebuffer,
+                                         const SharedPtr<MG_State::GLState::FramebufferObject>& drawFramebuffer,
+                                         GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+                                         GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+                                         GLbitfield mask, GLenum filter);
+            void (*CopyTexImage2D)(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width,
+                                   GLsizei height, GLint border);
+            void (*CopyTexSubImage2D)(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y,
+                                      GLsizei width, GLsizei height);
+            void (*CopyImageSubData)(const SharedPtr<MG_State::GLState::ITextureObject>& srcTexture,
+                                     GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ,
+                                     const SharedPtr<MG_State::GLState::ITextureObject>& dstTexture,
+                                     GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ,
+                                     GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth);
+            void (*GenerateMipmap)(GLenum target);
+            void (*ReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type,
+                               void* pixels);
+            void (*GetTexImage)(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels);
+            void (*GetTextureImage)(const SharedPtr<MG_State::GLState::ITextureObject>& texture,
+                                    TextureUploadTarget uploadTarget, GLint level, GLenum format, GLenum type,
+                                    GLsizei bufSize, GLvoid* pixels);
+            void (*DispatchCompute)(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ);
+            void (*DispatchComputeIndirect)(GLintptr indirect);
+            void (*MemoryBarrier)(GLbitfield barriers);
+            void (*MemoryBarrierByRegion)(GLbitfield barriers);
+            void (*BindImageTexture)(GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer,
+                                     GLenum access, GLenum format);
+            void (*GetIntegeri_v)(GLenum target, GLuint index, GLint* data);
+            void (*GetInteger64i_v)(GLenum target, GLuint index, GLint64* data);
+            void (*GetProgramiv)(GLuint program, GLenum pname, GLint* params);
+            // The GL program interface (glGetProgramInterfaceiv / glGetProgramResource*) is NOT
+            // a backend query: it describes the program the application wrote, in the
+            // application's namespace, which neither backend program is in. It is answered
+            // entirely by MG_Impl/GLImpl/Program/ProgramInterface from the frontend reflection.
+            // Takes the block's GL NAME, not glShaderStorageBlockBinding's index. The index
+            // the application passes is the frontend interface-query enumeration's, and no
+            // backend shares that index space: DirectVulkan enumerates SPIR-V descriptor
+            // bindings and DirectGLES asks a real driver about SPIRV-Cross-generated ESSL.
+            // The name is the one coordinate all three agree on, so the frontend resolves the
+            // index against its own enumeration and each backend maps the name to its own.
+            void (*ShaderStorageBlockBinding)(GLuint program, const GLchar* storageBlockName,
+                                              GLuint storageBlockBinding);
+            // GL fence sync objects. All entries are optional (may be null); the
+            // frontend then falls back to always-signaled sync semantics.
+            // FenceSync may itself return null when the backend cannot create a
+            // fence right now (e.g. the calling thread does not own the backend
+            // context); the frontend treats such a sync as always signaled.
+            BackendSyncHandle (*FenceSync)();
+            GLenum (*ClientWaitSync)(BackendSyncHandle sync, GLbitfield flags, GLuint64 timeout);
+            void (*WaitSync)(BackendSyncHandle sync, GLbitfield flags, GLuint64 timeout);
+            void (*DeleteSync)(BackendSyncHandle sync);
+            Bool (*GetSyncStatus)(BackendSyncHandle sync); // true = signaled
+            // GL timer-query objects (GL_ARB_timer_query). All entries are
+            // optional (may be null); the frontend then falls back to zero
+            // results and reports GL_QUERY_COUNTER_BITS == 0.
+            // BeginTimeElapsedQuery / QueryCounterTimestamp may themselves
+            // return null when the backend cannot create a query right now;
+            // the frontend treats such a query as immediately available with
+            // a zero result.
+            // Dynamic support check: true only when the live backend can
+            // actually time at the moment of the call (extension / entry
+            // points / timestamp valid bits are known then, not at table
+            // init). Gates the advertised GL_QUERY_COUNTER_BITS.
+            Bool (*IsTimerQuerySupported)();
+            BackendQueryHandle (*BeginTimeElapsedQuery)();            // starts a TIME_ELAPSED span
+            void (*EndTimeElapsedQuery)(BackendQueryHandle query);    // ends the span
+            BackendQueryHandle (*QueryCounterTimestamp)();            // glQueryCounter(GL_TIMESTAMP) one-shot
+            Bool (*IsQueryResultAvailable)(BackendQueryHandle query); // non-blocking
+            // Returns true when a final value was produced (*outNanoseconds
+            // written; the frontend may cache it and release the handle).
+            // Returns false when the result could not be obtained YET - e.g.
+            // a Vulkan wait that refuses to block on a not-yet-submitted
+            // frame serial - in which case the frontend must keep the handle
+            // and leave the query readable later.
+            Bool (*GetQueryResult64)(BackendQueryHandle query, Bool wait, Uint64* outNanoseconds);
+            void (*DeleteBackendQuery)(BackendQueryHandle query);
+            // GL_SAMPLES_PASSED occlusion queries (optional; null = unsupported,
+            // the frontend then rejects the target). Results/deletion flow through
+            // GetQueryResult64 / DeleteBackendQuery like timer queries.
+            BackendQueryHandle (*BeginOcclusionQuery)();
+            void (*EndOcclusionQuery)(BackendQueryHandle query);
+            // Transform feedback primitive queries backed by real GPU query pools
+            // (optional; null = frontend falls back to CPU accounting).
+            BackendQueryHandle (*BeginXfbPrimitivesQuery)(Bool generated);
+            void (*EndXfbPrimitivesQuery)(BackendQueryHandle query);
+            // Transform feedback capture spans, for backends whose own GL/ES driver
+            // performs the capture (DirectGLES). Both optional; null means the backend
+            // drives capture from its draw recording instead (DirectVulkan). End is
+            // called while the frontend capture state is still active, so the backend
+            // can still see the capture program and buffer bindings.
+            // GL_PATCH_VERTICES; ES 3.2 spells it the same way.
+            void (*PatchParameteri)(GLenum pname, GLint value);
+            void (*BeginTransformFeedback)(GLenum primitiveMode);
+            void (*EndTransformFeedback)();
+            // ARB_transform_feedback2. A backend that leaves these null keeps the single
+            // implicit capture span the frontend has always modelled; the frontend state
+            // (paused flag, per-object bindings) is tracked either way.
+            void (*PauseTransformFeedback)();
+            void (*ResumeTransformFeedback)();
+            void (*BindTransformFeedback)(GLuint name);
+            void (*DeleteTransformFeedback)(GLuint name);
+            Int64 (*GetGpuTimestampNs)(); // glGetInteger64v(GL_TIMESTAMP); 0 if unsupported
+        };
+        struct GlobalBackendFunctionsTable {
+            GLFunctionsTable GL;
+            void (*Present)();
+            // Optional: applies the app-requested eglSwapInterval to the native
+            // presentation path (null = backend keeps its own pacing policy).
+            void (*SetSwapInterval)(Int interval);
+        };
+
+        // Coarse GPU vendor identity for gating device-specific quirks. Detected from the
+        // Vulkan physical-device vendorID or the GLES GL_VENDOR/GL_RENDERER strings; stays
+        // Unknown when detection is inconclusive, in which case auto-gated quirks stay off.
+        enum class GpuVendorKind : Uint8 {
+            Unknown = 0,
+            Qualcomm,
+            Arm,
+            Nvidia,
+            Amd,
+            Intel,
+            ImgTec,
+            // Software rasterizers (llvmpipe/lavapipe, SwiftShader).
+            Software,
+        };
+
+        struct DynamicBackendParameters {
+            SizeT UniformBufferOffsetAlignment = 256;
+            // GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT. 1.0 means the backend cannot filter anisotropically,
+            // which is also why the extension is not advertised in that case.
+            Float MaxTextureMaxAnisotropy = 1.0f;
+            Float AliasedLineWidthRangeMin = 1.0f;
+            Float AliasedLineWidthRangeMax = 1.0f;
+            Float SmoothLineWidthRangeMin = 1.0f;
+            Float SmoothLineWidthRangeMax = 1.0f;
+            Float SmoothLineWidthGranularity = 1.0f;
+            Float PointSizeRangeMin = 1.0f;
+            Float PointSizeRangeMax = 1.0f;
+            Float PointSizeGranularity = 1.0f;
+            Int Max3DTextureSize = 16384;
+            Int MaxArrayTextureLayers = 2048;
+            Int MaxCubeMapTextureSize = 16384;
+            Int MaxFramebufferWidth = 16384;
+            Int MaxFramebufferHeight = 16384;
+            Int MaxFramebufferLayers = 2048;
+            Int MaxRenderbufferSize = 16384;
+            Int MaxTextureSize = 16384;
+            Int MaxColorTextureSamples = 1;
+            Int MaxDepthTextureSamples = 1;
+            Int MaxFramebufferSamples = 1;
+            Int MaxIntegerSamples = 1;
+            Int MaxSamples = 1;
+            Int MaxSampleMaskWords = 1;
+            // Tessellation limits; defaults are the GL 4.0 core minimums.
+            Int MaxPatchVertices = 32;
+            Int MaxTessGenLevel = 64;
+            // GL_MIN/MAX_PROGRAM_TEXTURE_GATHER_OFFSET. Defaults are the GL 4.0 core
+            // minimums, which every ES 3.1 driver also guarantees.
+            Int MinProgramTextureGatherOffset = -8;
+            Int MaxProgramTextureGatherOffset = 7;
+            Int MaxTextureImageUnits = 32;
+            Int MaxVertexTextureImageUnits = 32;
+            Int MaxComputeTextureImageUnits = 32;
+            Int MaxCombinedTextureImageUnits = 192;
+            Int MaxVertexAttribs = 16;
+            Int MaxComputeShaderStorageBlocks = 8;
+            Int MaxCombinedShaderStorageBlocks = 32;
+            Int MaxComputeUniformBlocks = 12;
+            Int MaxComputeWorkGroupInvocations = 128;
+            Int MaxShaderStorageBufferBindings = 8;
+            Int MaxTextureBufferSize = 65536;
+            // GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT; 1 means the offset is unconstrained.
+            Int TextureBufferOffsetAlignment = 1;
+            Int MaxUniformBufferBindings = 24;
+            Int MaxUniformBlockSize = 16384;
+            Int MaxImageUnits = 8;
+            Int MaxCombinedImageUniforms = 8;
+            Int MaxVertexImageUniforms = 0;
+            Int MaxGeometryImageUniforms = 0;
+            Int MaxFragmentImageUniforms = 8;
+            Int MaxComputeImageUniforms = 8;
+            Int MaxDrawBuffers = 8;
+            Int MaxColorAttachments = 8;
+            Int MaxClipDistances = 8;
+            Int MaxViewports = 16;
+            Int MaxViewportWidth = 16384;
+            Int MaxViewportHeight = 16384;
+            Float ViewportBoundsRangeMin = 0.0f;
+            Float ViewportBoundsRangeMax = 0.0f;
+            Int ViewportSubpixelBits = 0;
+            // GL 4.x fragment-interpolation offset limits. These defaults are the
+            // core minimums and are replaced by live GLES/Vulkan device limits.
+            Float MinFragmentInterpolationOffset = -0.5f;
+            // For four fractional bits the greatest required legal offset is
+            // 0.5 - 2^-4 = 0.4375 (GL 4.6 table 23.70).
+            Float MaxFragmentInterpolationOffset = 0.4375f;
+            Int FragmentInterpolationOffsetBits = 4;
+            Bool SupportsWideLines = false;
+            // Whether a framebuffer whose depth and stencil attachments are distinct
+            // images can be rendered to. GL only requires support when both refer to the
+            // same image and lets an implementation answer GL_FRAMEBUFFER_UNSUPPORTED
+            // otherwise, which is what DirectVulkan (one combined attachment) and the
+            // real ES drivers behind DirectGLES both do. Defaults to true so a backend
+            // that never sets it keeps the permissive behaviour.
+            Bool SupportsDistinctDepthStencilAttachments = true;
+            // Whether attaching a single layer of a 3D or array texture to a framebuffer actually
+            // renders to that layer. DirectGLES hands the layer straight to
+            // glFramebufferTextureLayer, so it does; DirectVulkan maps a GL layer onto a Vulkan
+            // array layer with no notion of a 3D depth slice, so it does not yet. Defaults to false
+            // so a backend that never sets it gets the conservative answer.
+            // Which layered texture targets this backend can attach ONE layer of to a framebuffer
+            // and then really clear, render and read back that layer. Bit (1u << TextureTarget) is
+            // set for each supported target. Deliberately per target rather than one flag: the three
+            // ways a GL layer maps onto Vulkan are independent capabilities. A 2D or 2D multisample
+            // array layer IS a VkImage array layer and needs nothing extra; a 3D texture's layer is
+            // a z slice, which needs a 2D-array-compatible image and a per-slice clear that
+            // vkCmdClearColorImage cannot express; a cube map array needs an image shape and the
+            // imageCubeArray feature before it can be attached at any layer at all. Defaults to 0 so
+            // a backend that never sets it gets the conservative answer.
+            Uint32 PerLayerFramebufferAttachmentTargets = 0;
+
+            static constexpr Uint32 PerLayerFramebufferAttachmentBit(TextureTarget target) {
+                return (static_cast<Int>(target) >= 0 &&
+                        static_cast<Int>(target) < static_cast<Int>(TextureTarget::TextureTargetCount))
+                           ? (1u << static_cast<Uint32>(target))
+                           : 0u;
+            }
+
+            Bool SupportsPerLayerFramebufferAttachment(TextureTarget target) const {
+                const Uint32 bit = PerLayerFramebufferAttachmentBit(target);
+                return bit != 0 && (PerLayerFramebufferAttachmentTargets & bit) != 0;
+            }
+            // Whether glVertexAttribLFormat / glVertexArrayAttribLFormat can be honoured, i.e.
+            // whether a 64-bit vertex attribute can actually reach a shader unconverted. Detected,
+            // never assumed: DirectVulkan needs VkPhysicalDeviceFeatures::shaderFloat64 (the
+            // attribute travels as its 32-bit word pair, so no VK_FORMAT_R64* is required, but the
+            // bitcast result is Float64); DirectGLES can never have it, ESSL having no fp64 type at
+            // all. Defaults to false so a backend that never sets it gets the conservative answer.
+            Bool SupportsFloat64VertexAttributes = false;
+            SizeT MaxShaderStorageBlockSize = 128 * 1024 * 1024;
+            Uint32 SubgroupSize = 0;
+            Uint32 SubgroupSupportedStages = 0;
+            Uint32 SubgroupSupportedFeatures = 0;
+            Bool SubgroupQuadOperationsInAllStages = false;
+            GpuVendorKind GpuVendor = GpuVendorKind::Unknown;
+        };
+
+        enum class WindowBackend {
+            Android,
+            X11,
+            MetalLayer,
+            Win32, // Handle is an HWND
+            // TODO: Wayland, etc.
+            WindowBackendCount,
+            Unknown = -1
+        };
+
+        struct WindowHandle {
+            WindowBackend Backend = WindowBackend::Unknown;
+            void* Handle = nullptr;
+            Uint32 Width = 0;
+            Uint32 Height = 0;
+        };
+
+        class BackendObject {
+        public:
+            virtual ~BackendObject() = default;
+
+            virtual void Initialize() = 0;
+            virtual Bool InitCapabilities() = 0;
+            virtual Bool InitWindowSurface() = 0;
+
+            virtual Bool InitializeEGLDisplay(EGLDisplay dpy, EGLint* major, EGLint* minor);
+            virtual Bool CreateEGLWindowSurface(EGLSurface surface, const WindowHandle& handle);
+            virtual Bool ResizeEGLWindowSurface(EGLSurface surface, Uint32 width, Uint32 height);
+            virtual Bool CreateEGLPbufferSurface(EGLSurface surface, EGLint width, EGLint height);
+            virtual Bool MakeEGLCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx);
+            virtual Bool SwapEGLBuffers(EGLDisplay dpy, EGLSurface draw);
+            // Forwards the app-requested eglSwapInterval to the backend's native
+            // presentation path (no-op for backends without a SetSwapInterval hook).
+            virtual void SetEGLSwapInterval(Int interval);
+            virtual void ReleaseEGLSurface(EGLSurface surface);
+            virtual void ReleaseEGLResources();
+
+            void SetWindowHandle(const WindowHandle& handle);
+
+            virtual const RendererInfo& GetRendererInfo() const = 0;
+            virtual String GetBackendAPIVersionString() const = 0;
+            virtual const GlobalBackendFunctionsTable& GetBackendFunctions() const = 0;
+            virtual const DynamicBackendParameters& GetDynamicParameters() const = 0;
+            const FormatCapabilityCache& GetFormatCapabilities() const;
+            virtual BackendType GetBackendType() const = 0;
+
+        protected:
+            enum class SurfaceKind {
+                None,
+                Window,
+                Pbuffer
+            };
+
+            struct EGLCurrentState {
+                EGLDisplay Display = EGL_NO_DISPLAY;
+                EGLSurface DrawSurface = EGL_NO_SURFACE;
+                EGLSurface ReadSurface = EGL_NO_SURFACE;
+                EGLContext Context = EGL_NO_CONTEXT;
+            };
+
+            struct EGLSurfaceState {
+                SurfaceKind Kind = SurfaceKind::None;
+                Bool DestroyPending = false;
+                WindowHandle Window;
+                EGLint Width = 1;
+                EGLint Height = 1;
+            };
+
+            void ResetEGLRuntimeState();
+            Bool RegisterEGLWindowSurface(EGLSurface surface, const WindowHandle& handle);
+            Bool RegisterEGLPbufferSurface(EGLSurface surface, EGLint width, EGLint height);
+            const EGLSurfaceState* GetRegisteredEGLSurface(EGLSurface surface) const;
+            Bool ActivateEGLSurface(EGLSurface surface);
+            virtual Bool InitPbufferSurface(EGLint width, EGLint height);
+            virtual void OnEGLSurfaceReleased(EGLSurface surface);
+            FormatCapabilityCache& MutableFormatCapabilities();
+
+            mutable std::recursive_mutex m_eglStateMutex;
+            FormatCapabilityCache m_formatCapabilities;
+            WindowHandle m_windowHandle;
+            EGLDisplay m_eglDisplay = EGL_NO_DISPLAY;
+            EGLSurface m_eglSurface = EGL_NO_SURFACE;
+            Bool m_eglDisplayInitialized = false;
+            Bool m_eglSurfaceInitialized = false;
+            Bool m_backendCapabilitiesInitialized = false;
+            SurfaceKind m_eglSurfaceKind = SurfaceKind::None;
+            UnorderedMap<std::thread::id, EGLCurrentState> m_eglCurrentThreads;
+            UnorderedMap<EGLSurface, EGLSurfaceState> m_eglSurfaces;
+
+        private:
+            Bool IsEGLSurfaceCurrent(EGLSurface surface) const;
+            void DestroyPendingEGLSurfaceIfUnused(EGLSurface surface);
+            void ReleaseEGLCurrentThread(const std::thread::id& threadKey);
+        };
+    } // namespace MG_Backend
+} // namespace MobileGL

MobileGL/MG_Backend/BackendObjects.h

@@ -0,0 +1,18 @@
+// MobileGL - MobileGL/MG_Backend/BackendObjects.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+#include <Includes.h>
+#include "BackendObject.h"
+#include "DirectGLES/BackendObject_DirectGLES.h"
+#include "DirectVulkan/BackendObject_DirectVulkan.h"
+
+namespace MobileGL::MG_Backend {
+    extern UniquePtr<BackendObject>& pActiveBackendObject;
+    extern GlobalBackendFunctionsTable gBackendFunctionsTable;
+} // namespace MobileGL::MG_Backend

MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.h

@@ -0,0 +1,78 @@
+// MobileGL - MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+#include <Includes.h>
+#include "../BackendObject.h"
+#include <MG_Util/BackendLoaders/OpenGL/Loader.h>
+
+namespace MobileGL::MG_Backend::DirectGLES {
+    // Populates the same format-capability cache used by backend startup. The caller
+    // must keep the supplied GLES context current for the duration of this call.
+    void PopulateFormatCapabilities(const MG_External::GLESFunctionsTable& gl,
+                                    const MG_External::GLESCapabilities& capabilities,
+                                    FormatCapabilityCache& cache);
+
+    class BackendObject_DirectGLES : public BackendObject {
+    public:
+        ~BackendObject_DirectGLES() override;
+
+        void Initialize() override;
+        Bool InitCapabilities() override;
+        Bool InitWindowSurface() override;
+        Bool InitializeEGLDisplay(EGLDisplay dpy, EGLint* major, EGLint* minor) override;
+        Bool CreateEGLWindowSurface(EGLSurface surface, const WindowHandle& handle) override;
+        Bool CreateEGLPbufferSurface(EGLSurface surface, EGLint width, EGLint height) override;
+        Bool MakeEGLCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx) override;
+        Bool SwapEGLBuffers(EGLDisplay dpy, EGLSurface draw) override;
+        void ReleaseEGLSurface(EGLSurface surface) override;
+        void ReleaseEGLResources() override;
+
+        const RendererInfo& GetRendererInfo() const override;
+        String GetBackendAPIVersionString() const override;
+        const GlobalBackendFunctionsTable& GetBackendFunctions() const override;
+        const DynamicBackendParameters& GetDynamicParameters() const override;
+        BackendType GetBackendType() const override;
+
+        const MG_External::GLESFunctionsTable& GetGLESFunctions() const;
+        const MG_External::EGLFunctionsTable& GetEGLFunctions() const;
+        void ApplyGLESCapabilitiesForTesting(const MG_External::GLESCapabilities& capabilities);
+
+    private:
+        void UpdateDynamicBackendParameters();
+        Bool InitPbufferSurface(EGLint width, EGLint height) override;
+        void OnEGLSurfaceReleased(EGLSurface surface) override;
+
+        Bool m_initialized = false;
+        MG_External::EGLFunctionsTable m_EGLFunctions;
+        MG_External::GLESFunctionsTable m_GLESFunctions;
+        MG_External::GLESCapabilities m_GLESCapabilities;
+        DynamicBackendParameters m_dynamicParameters;
+    };
+
+    // Single-source-of-truth helpers shared with the driver POST
+    // (MG_Util/SelfTest/DriverPost.cpp), so the identity strings and extension list
+    // MobileGL reports to applications on this backend cannot drift from what the
+    // POST screen shows.
+
+    // Static identity of the Espryt renderer (renderer/backend names, target GL/GLSL
+    // versions, ExtraVendor). The Extensions vector inside is live backend state that
+    // is reconciled after capability init; callers that need the advertised list for
+    // a known capability set must use BuildAdvertisedExtensions instead.
+    const RendererInfo& GetRendererIdentity();
+
+    // The full OpenGL extension list Espryt advertises (glGetString(GL_EXTENSIONS))
+    // for a device whose timer queries / anisotropic filtering are (or are not) usable.
+    // The MOBILEGL_DISABLE_TIMERQUERY escape hatch is applied inside.
+    Vector<GLExtension> BuildAdvertisedExtensions(Bool timerQueriesSupported, Bool anisotropicFilteringSupported);
+
+    // Format: <OpenGL ES Renderer>, OpenGL ES <Major>.<Minor> — the exact string an
+    // initialized backend returns from GetBackendAPIVersionString (and that ends up
+    // inside the application-visible GL_RENDERER string).
+    String FormatBackendAPIVersionString(const String& glesRendererString, Int glesMajor, Int glesMinor);
+} // namespace MobileGL::MG_Backend::DirectGLES

MobileGL/MG_Backend/DirectGLES/DirectGLES.h

@@ -0,0 +1,214 @@
+// MobileGL - MobileGL/MG_Backend/DirectGLES/DirectGLES.h
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#pragma once
+#include <Includes.h>
+#include <MG_Backend/BackendObject.h>
+#include <MG_State/GLState/FramebufferState/FramebufferObject.h>
+#include <MG_State/GLState/TextureState/TextureState.h>
+#include <MG_State/GLState/SamplerState/SamplerObject.h>
+#include <MG_Util/BackendLoaders/OpenGL/Loader.h>
+
+#define CallAndCheck(operation)                                                                                        \
+    MGLOG_D("Call GLES func: %s", #operation);                                                                         \
+    operation Utils::CheckGLESError();
+
+namespace MobileGL::MG_Backend::DirectGLES {
+    // Re-establishes the frontend texture-unit bindings on the native ES context.
+    // Content uploads use scratch bindings, so draws and dispatches call this after
+    // texture synchronization.
+    void BindCurrentTextures();
+    void ClearBufferfi(GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
+    void ClearBufferfv(GLenum buffer, GLint drawbuffer, const GLfloat* value);
+    void ClearBufferuiv(GLenum buffer, GLint drawbuffer, const GLuint* value);
+    void ClearBufferiv(GLenum buffer, GLint drawbuffer, const GLint* value);
+    void Clear(GLbitfield mask);
+    void DrawElements(GLenum mode, GLsizei count, GLenum type, const void* indices);
+    void DrawArrays(GLenum mode, GLint first, GLsizei count);
+    void DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices, GLint basevertex);
+    void MultiDrawArrays(GLenum mode, const GLint* first, const GLsizei* count, GLsizei drawcount);
+    void MultiDrawElements(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                           GLsizei drawcount);
+    void MultiDrawElementsBaseVertex(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                                     GLsizei drawcount, const GLint* basevertex);
+    void MultiDrawElementsIndirect(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount, GLsizei stride);
+    void MultiDrawElementsIndirectCount(GLenum mode, GLenum type, const void* indirect, GLintptr drawcount,
+                                        GLsizei maxdrawcount, GLsizei stride);
+    void MultiDrawArraysIndirect(GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride);
+    void DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
+                                     const void* indices, GLint basevertex);
+    void DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void* indices);
+    void DrawElementsInstancedBaseVertexBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                                     GLsizei instancecount, GLint basevertex, GLuint baseinstance);
+    void DrawElementsInstancedBaseVertex(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                         GLsizei instancecount, GLint basevertex);
+    void DrawElementsInstancedBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
+                                           GLsizei instancecount, GLuint baseinstance);
+    void DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, const void* indices, GLsizei instancecount);
+    void DrawElementsIndirect(GLenum mode, GLenum type, const void* indirect);
+    void DrawArraysInstancedBaseInstance(GLenum mode, GLint first, GLsizei count, GLsizei instancecount,
+                                         GLuint baseinstance);
+    void DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei instancecount);
+    void DrawArraysIndirect(GLenum mode, const void* indirect);
+    void ClearNamedFramebufferfv(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                 GLenum buffer, GLint drawbuffer, const GLfloat* value);
+    void ClearNamedFramebufferfi(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                 GLenum buffer, GLint drawbuffer, GLfloat depth, GLint stencil);
+    void ClearNamedFramebufferiv(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                 GLenum buffer, GLint drawbuffer, const GLint* value);
+    void ClearNamedFramebufferuiv(const SharedPtr<MG_State::GLState::FramebufferObject>& framebuffer,
+                                  GLenum buffer, GLint drawbuffer, const GLuint* value);
+    void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1,
+                         GLint dstY1, GLbitfield mask, GLenum filter);
+    void BlitNamedFramebuffer(const SharedPtr<MG_State::GLState::FramebufferObject>& readFramebuffer,
+                              const SharedPtr<MG_State::GLState::FramebufferObject>& drawFramebuffer,
+                              GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+                              GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+                              GLbitfield mask, GLenum filter);
+    void CopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width,
+                        GLsizei height, GLint border);
+    void CopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width,
+                           GLsizei height);
+    void CopyImageSubData(const SharedPtr<MG_State::GLState::ITextureObject>& srcTexture,
+                          GLenum srcTarget, GLint srcLevel, GLint srcX, GLint srcY, GLint srcZ,
+                          const SharedPtr<MG_State::GLState::ITextureObject>& dstTexture,
+                          GLenum dstTarget, GLint dstLevel, GLint dstX, GLint dstY, GLint dstZ,
+                          GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth);
+    void GenerateMipmap(GLenum target);
+    const GLubyte* GetString(GLenum name);
+    void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void* pixels);
+    void GetTexImage(GLenum target, GLint level, GLenum format, GLenum type, GLvoid* pixels);
+    void DispatchCompute(GLuint numGroupsX, GLuint numGroupsY, GLuint numGroupsZ);
+    void DispatchComputeIndirect(GLintptr indirect);
+    void MemoryBarrier(GLbitfield barriers);
+    void MemoryBarrierByRegion(GLbitfield barriers);
+    void BindImageTexture(GLuint unit, GLuint texture, GLint level, GLboolean layered, GLint layer, GLenum access,
+                          GLenum format);
+    void GetIntegeri_v(GLenum target, GLuint index, GLint* data);
+    void GetInteger64i_v(GLenum target, GLuint index, GLint64* data);
+    void GetProgramiv(GLuint program, GLenum pname, GLint* params);
+    void ShaderStorageBlockBinding(GLuint program, const GLchar* storageBlockName, GLuint storageBlockBinding);
+    Bool InitWindowSurface(NativeWindowType window);
+    Bool InitPbufferSurface(EGLint width, EGLint height);
+    Bool MakeCurrent();
+    Bool ReleaseCurrent();
+    // True when the backend ES context is current on the calling thread, i.e.
+    // immediate buffer ops may issue GL calls right now.
+    Bool IsBackendContextCurrentOnThisThread();
+    // GL fence sync objects, backed by native ES fences. FenceSync returns null
+    // (the frontend then falls back to an always-signaled sync) when the calling
+    // thread does not own the ES context. Waits/queries degrade to "signaled" in
+    // the same situation, and handles created under a since-destroyed ES context
+    // are always treated as signaled.
+    BackendSyncHandle FenceSync();
+    GLenum ClientWaitSync(BackendSyncHandle sync, GLbitfield flags, GLuint64 timeout);
+    void WaitSync(BackendSyncHandle sync, GLbitfield flags, GLuint64 timeout);
+    void DeleteSync(BackendSyncHandle sync);
+    Bool GetSyncStatus(BackendSyncHandle sync);
+    // True when GL_EXT_disjoint_timer_query and every entry point the timer
+    // hooks below need are present. Also gates the E_GL_ARB_timer_query
+    // advertisement in BackendObject_DirectGLES::InitCapabilities, and is
+    // registered as the GLFunctionsTable::IsTimerQuerySupported hook: a pure
+    // capability read needs no current ES context, and it stays false until
+    // the ES capabilities have been filled in.
+    Bool AreTimerQueriesSupported();
+    // GL timer-query objects, backed by GL_EXT_disjoint_timer_query. The
+    // creators return null (the frontend then falls back to an immediately
+    // available zero result) when the calling thread does not own the ES
+    // context or the extension/entry points are missing, and handles created
+    // under a since-destroyed ES context are always treated as complete with
+    // a zero result (mirrors the fence-sync handles above).
+    BackendQueryHandle BeginTimeElapsedQuery();
+    void EndTimeElapsedQuery(BackendQueryHandle query);
+    BackendQueryHandle QueryCounterTimestamp();
+    // GL_ANY_SAMPLES_PASSED(_CONSERVATIVE) occlusion queries: core ES3, independent of
+    // GL_EXT_disjoint_timer_query and of MOBILEGL_DISABLE_TIMERQUERY. Results/deletion
+    // flow through GetQueryResult64/DeleteBackendQuery like the timer queries above.
+    BackendQueryHandle BeginOcclusionQuery();
+    void EndOcclusionQuery(BackendQueryHandle query);
+    // GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN / GL_PRIMITIVES_GENERATED, also core ES
+    // (GL_PRIMITIVES_GENERATED from ES 3.2 on). Null when the target is unavailable, in
+    // which case the frontend falls back to counting primitives from the draw calls.
+    BackendQueryHandle BeginXfbPrimitivesQuery(Bool generated);
+    void EndXfbPrimitivesQuery(BackendQueryHandle query);
+    Bool IsQueryResultAvailable(BackendQueryHandle query);
+    // Returns true when a final value landed in *outNanoseconds (a zero for
+    // null or stale-generation handles IS final: the frontend may cache it
+    // and release the handle). Returns false only when the calling thread
+    // does not own the ES context, so the value is genuinely unobtainable
+    // right now; the handle stays alive and readable later.
+    Bool GetQueryResult64(BackendQueryHandle query, Bool wait, Uint64* outNanoseconds);
+    void DeleteBackendQuery(BackendQueryHandle query);
+    Int64 GetGpuTimestampNs();
+    void Present();
+    // Frame-completion watermarks for the buffer-storage pool: CurrentFrameSerial()
+    // is bumped once per Present(); CompletedFrameSerial() is the newest frame whose
+    // GPU work has provably finished (advanced by polling a one-fence-per-frame ring).
+    // A buffer retired during frame N is safe to recycle once CompletedFrameSerial() >= N.
+    Uint64 CurrentFrameSerial();
+    Uint64 CompletedFrameSerial();
+    // Block (up to timeoutNs) until the given frame serial provably retired on the
+    // GPU, using the per-frame fence ring. False when no usable fence covers the
+    // serial (fence-less context, foreign thread, or the slot was recycled);
+    // completion state is untouched in that case.
+    Bool WaitForFrameSerialCompleted(Uint64 serial, Uint64 timeoutNs);
+    // Applies (or defers until the window surface exists) the app-requested
+    // eglSwapInterval on the native EGL surface.
+    void SetSwapInterval(Int interval);
+    void SetEGLFuncsTable(const MG_External::EGLFunctionsTable& eglFuncs);
+    void SetGLESFuncsTable(const MG_External::GLESFunctionsTable& glesFuncs);
+    void SetGLESCapabilities(const MG_External::GLESCapabilities& capabilities);
+    void DestroyEGLContext();
+
+    // Transform feedback capture spans, performed by the real ES driver. The
+    // capture set is declared on the backend program at link time; the driver-side
+    // begin is deferred to the first draw of the span (ES needs the capturing
+    // program current and the capture buffers bound), and the end also mirrors the
+    // captured bytes back into the frontend buffer shadows.
+    void PatchParameteri(GLenum pname, GLint value);
+
+    namespace XfbImpl {
+        Bool AreTransformFeedbacksSupported();
+        // True while a capture span is open on the current transform feedback object
+        // (frontend Begin seen and not paused), whether or not the deferred driver-side
+        // Begin has been issued yet. Draw paths that would restructure the primitive
+        // stream, or that need to dispatch compute mid-draw, decline while it is set.
+        Bool IsCaptureSpanOpen();
+        void BeginTransformFeedback(GLenum primitiveMode);
+        void EndTransformFeedback();
+        void PauseTransformFeedback();
+        void ResumeTransformFeedback();
+        void BindTransformFeedback(GLuint name);
+        void DeleteTransformFeedback(GLuint name);
+        void OnBackendContextDestroyed();
+    } // namespace XfbImpl
+
+    namespace RenderStateImpl {
+        // Pushes the frontend's render-state block to the ES driver, diffed against what was
+        // last pushed.
+        //
+        // `forColorClear` names the CALLER, and the only thing it changes is the colour write
+        // mask handed to the driver. A draw into a colour attachment the backend widened from
+        // three channels to four gets that buffer's alpha channel masked OFF, so nothing can
+        // move the stored alpha away from the 1.0 the application's three-channel format
+        // implies (see FramebufferImpl::g_alphaWidenedDrawBufferMask). A CLEAR is how that 1.0
+        // gets there in the first place, so it must be allowed to write alpha - hence the flag
+        // rather than an unconditional doctoring. It is part of the sync memo, so a clear
+        // followed by a draw re-pushes the mask instead of early-outing on an unchanged
+        // frontend version.
+        //
+        // The application's own colour mask is never modified: glGet(GL_COLOR_WRITEMASK)
+        // answers from the frontend state, which this function only reads.
+        void SyncRenderState(Bool forColorClear = false);
+        void InvalidateSyncedRenderState();
+    } // namespace RenderStateImpl
+
+    extern MG_External::EGLFunctionsTable g_EGLFuncs;
+    extern MG_External::GLESFunctionsTable g_GLESFuncs;
+    extern MG_External::GLESCapabilities g_GLESCapabilities;
+} // namespace MobileGL::MG_Backend::DirectGLES

MobileGL/MG_Backend/DirectGLES/MultiDraw.cpp

@@ -0,0 +1,894 @@
+// MobileGL - MobileGL/MG_Backend/DirectGLES/MultiDraw.cpp
+// Copyright (c) 2025-2026 MobileGL-Dev
+// Licensed under the GNU Lesser General Public License v3.0:
+//   https://www.gnu.org/licenses/gpl-3.0.txt
+//   https://www.gnu.org/licenses/lgpl-3.0.txt
+// SPDX-License-Identifier: LGPL-3.0-only
+// End of Source File Header
+
+#include "MultiDraw.h"
+#include "Managers.h"
+#include <MG_State/GLState/Core.h>
+#include <cstring>
+#include <limits>
+
+namespace MobileGL::MG_Backend::DirectGLES::MultiDrawImpl {
+    using MG_Config::GLESMultiDrawMode;
+
+    namespace {
+        // ---------------------------------------------------------------------------
+        // Batch shape
+        // ---------------------------------------------------------------------------
+
+        SizeT IndexTypeSize(GLenum type) {
+            switch (type) {
+            case GL_UNSIGNED_BYTE: return 1;
+            case GL_UNSIGNED_SHORT: return 2;
+            case GL_UNSIGNED_INT: return 4;
+            default: return 0;
+            }
+        }
+
+        // The all-ones value of an index type, which is what GL restarts on once
+        // primitive restart is in play. CheckPrimitiveRestartSupported has already
+        // rejected the arbitrary-index form of GL_PRIMITIVE_RESTART, so an enabled
+        // restart always restarts here and nowhere else.
+        Uint32 RestartSentinelFor(GLenum type) {
+            switch (type) {
+            case GL_UNSIGNED_BYTE: return 0xFFu;
+            case GL_UNSIGNED_SHORT: return 0xFFFFu;
+            default: return 0xFFFFFFFFu;
+            }
+        }
+
+        Bool RestartActive() {
+            return MG_State::pGLContext->IsCapabilityEnabled(CapabilityInput::PrimitiveRestart) ||
+                   MG_State::pGLContext->IsCapabilityEnabled(CapabilityInput::PrimitiveRestartFixedIndex);
+        }
+
+        // Vertices per primitive for the modes whose sub-draws may be concatenated into a
+        // single draw without changing the primitive stream. Zero for strip/loop/fan modes
+        // (concatenation would weld one sub-draw's last primitive to the next sub-draw's
+        // first) and for GL_PATCHES, whose primitive size is dynamic tessellation state.
+        Uint32 ConcatenablePrimitiveSize(GLenum mode) {
+            switch (mode) {
+            case GL_POINTS: return 1;
+            case GL_LINES: return 2;
+            case GL_TRIANGLES: return 3;
+            case GL_LINES_ADJACENCY: return 4;
+            case GL_TRIANGLES_ADJACENCY: return 6;
+            default: return 0;
+            }
+        }
+
+        // Beyond this an emulated batch would ask for a scratch allocation measured in
+        // hundreds of megabytes (and the scratch ring never shrinks again); decline and let
+        // a per-sub-draw tier handle it instead of trying and failing inside the driver.
+        constexpr SizeT kMaxFlattenedIndices = SizeT{1} << 24;
+
+        // The flattening dispatch is one invocation per output index. ES 3.1 only
+        // guarantees 65535 work groups per dimension, and exceeding it makes
+        // glDispatchCompute an INVALID_VALUE no-op - which would leave the draw reading an
+        // uninitialised index buffer rather than failing visibly. Cap the tier there
+        // instead of querying: 4.19M indices is far past any real multi-draw batch, and
+        // beyond it the per-sub-draw tiers are the better answer anyway.
+        constexpr SizeT kComputeWorkGroupSize = 64;
+        constexpr SizeT kMaxComputeWorkGroups = 65535;
+        constexpr SizeT kMaxComputeFlattenedIndices = kMaxComputeWorkGroups * kComputeWorkGroupSize;
+
+        Uint BoundDrawIndirectBufferId() {
+            const auto& indirect =
+                MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::DrawIndirect).GetBoundObject();
+            if (!indirect) return 0;
+            const auto* resource = BufferImpl::EnsureBufferResource(indirect);
+            return resource ? resource->id : 0;
+        }
+
+        const SharedPtr<MG_State::GLState::BufferObject>& BoundIndexBuffer() {
+            static const SharedPtr<MG_State::GLState::BufferObject> none;
+            const auto& vao = MG_State::pGLContext->GetBoundVertexArray();
+            if (!vao) return none;
+            return vao->GetIndexBufferBindingSlot().GetBoundObject();
+        }
+
+        // The GL name PrepareForDraw left on GL_ELEMENT_ARRAY_BUFFER, i.e. what a tier
+        // that swaps in a scratch index buffer has to put back. Restoring the exact name
+        // matters beyond tidiness: the VAO twin memoises that it already synced this
+        // index binding and will not re-issue it on the next draw.
+        Uint BoundIndexBufferId() {
+            const auto& ibo = BoundIndexBuffer();
+            if (!ibo) return 0;
+            const auto* resource = BufferImpl::EnsureBufferResource(ibo);
+            return resource ? resource->id : 0;
+        }
+
+        // ---------------------------------------------------------------------------
+        // Scratch GL objects
+        //
+        // All of them belong to the ES context and are abandoned (not deleted) when it
+        // dies, exactly like XfbImpl's scatter buffer: the names are the dead context's
+        // to reclaim, and deleting them would target whatever the successor context
+        // handed out for the same name.
+        // ---------------------------------------------------------------------------
+
+        struct ScratchBuffer {
+            Uint id = 0;
+            SizeT capacity = 0;
+            SizeT cursor = 0; // ring buffers only: next free byte
+        };
+
+        ScratchBuffer g_indirectCommands; // synthesized DrawElementsIndirectCommand array
+        ScratchBuffer g_rebasedIndices;   // CPU-rebased index stream
+        ScratchBuffer g_drawInfo;         // compute tier: per-sub-draw descriptors
+        ScratchBuffer g_flattenedIndices; // compute tier: flattened index stream
+
+        Uint g_computeProgram = 0;
+        Bool g_computeProgramFailed = false;
+        GLint g_uElementSize = -1;
+        GLint g_uDrawCount = -1;
+        GLint g_uTotalIndices = -1;
+
+        // Reused staging, so a steady stream of batches allocates nothing.
+        Vector<DrawElementsIndirectCommand> g_commandStaging;
+        Vector<Uint32> g_indexStaging;
+        Vector<Uint32> g_drawInfoStaging;
+        Vector<GLint> g_zeroBaseVertices;
+
+        // Everything below stages through GL_ARRAY_BUFFER, the manager-wide staging target
+        // (BufferImpl::TempBufferTarget); binding it disturbs no VAO state.
+        Bool EnsureScratchName(ScratchBuffer& buffer) {
+            if (buffer.id != 0) return true;
+            GLuint id = 0;
+            g_GLESFuncs.glGenBuffers(1, &id);
+            if (id == 0) return false;
+            buffer.id = id;
+            buffer.capacity = 0;
+            buffer.cursor = 0;
+            return true;
+        }
+
+        // Whole-buffer upload, for the two buffers that are read from offset 0 because they
+        // are bound as storage blocks. Respecifies rather than sub-updates: glBufferData
+        // orphans the previous store, so the upload never waits on a dispatch still reading
+        // the old contents out of the same name.
+        Bool UploadScratch(ScratchBuffer& buffer, SizeT bytes, const void* data) {
+            if (bytes == 0) return true;
+            if (!EnsureScratchName(buffer)) return false;
+            BufferImpl::BindBufferId(BufferImpl::TempBufferTarget, buffer.id);
+            // Grow in powers of two so a batch that creeps up in size stops respecifying.
+            SizeT capacity = buffer.capacity == 0 ? bytes : buffer.capacity;
+            while (capacity < bytes) capacity *= 2;
+            g_GLESFuncs.glBufferData(BufferImpl::TempBufferTarget, static_cast<GLsizeiptr>(capacity), nullptr,
+                                     GL_STREAM_DRAW);
+            buffer.capacity = capacity;
+            buffer.cursor = 0;
+            if (data) {
+                g_GLESFuncs.glBufferSubData(BufferImpl::TempBufferTarget, 0, static_cast<GLsizeiptr>(bytes), data);
+            }
+            return true;
+        }
+
+        // Ring upload, for the buffers whose consumers can address a byte offset (indirect
+        // commands and rewritten index streams). Respecifying per batch is what an
+        // orphan-every-time scheme costs, and on a desktop-class driver that allocation
+        // dominated the tiers that use these buffers - a multi-draw of 32 sub-draws stages
+        // 640 bytes and paid for a fresh store to hold them. Bump-allocating instead means
+        // one respecify per wrap; every byte between two wraps is written exactly once, so
+        // nothing in flight is overwritten, and the wrap itself orphans.
+        constexpr SizeT kRingAlignment = 16; // >= 4, so both command and uint32-index offsets stay legal
+        constexpr SizeT kMinRingBytes = 1u << 16;
+
+        Bool UploadScratchRing(ScratchBuffer& buffer, SizeT bytes, const void* data, SizeT& outOffset) {
+            outOffset = 0;
+            if (bytes == 0) return true;
+            if (!EnsureScratchName(buffer)) return false;
+            BufferImpl::BindBufferId(BufferImpl::TempBufferTarget, buffer.id);
+
+            const SizeT aligned = (bytes + kRingAlignment - 1) & ~(kRingAlignment - 1);
+            if (buffer.capacity < aligned) {
+                SizeT capacity = buffer.capacity == 0 ? kMinRingBytes : buffer.capacity;
+                while (capacity < aligned) capacity *= 2;
+                g_GLESFuncs.glBufferData(BufferImpl::TempBufferTarget, static_cast<GLsizeiptr>(capacity), nullptr,
+                                         GL_STREAM_DRAW);
+                buffer.capacity = capacity;
+                buffer.cursor = 0;
+            } else if (buffer.cursor + aligned > buffer.capacity) {
+                g_GLESFuncs.glBufferData(BufferImpl::TempBufferTarget, static_cast<GLsizeiptr>(buffer.capacity),
+                                         nullptr, GL_STREAM_DRAW);
+                buffer.cursor = 0;
+            }
+
+            outOffset = buffer.cursor;
+            if (data) {
+                g_GLESFuncs.glBufferSubData(BufferImpl::TempBufferTarget, static_cast<GLintptr>(outOffset),
+                                            static_cast<GLsizeiptr>(bytes), data);
+            }
+            buffer.cursor += aligned;
+            return true;
+        }
+
+        // ---------------------------------------------------------------------------
+        // Tier resolution
+        // ---------------------------------------------------------------------------
+
+        // Best-first, and measured rather than assumed. MobileGlues orders its own Auto
+        // multiindirect -> indirect -> basevertex; on both ES drivers available here that
+        // is backwards, because staging a command buffer per batch costs more than the
+        // driver entries it saves. mc_sodium_multidraw (132 batches x 32 sub-draws),
+        // ns/op, median of three:
+        //
+        //                    NVIDIA ES 3.2   Mesa llvmpipe ES 3.2
+        //   ext                  n/a               19300
+        //   basevertex           2500              25200
+        //   multiindirect        5700              27600
+        //   drawelements         5600              28700
+        //   indirect             5800              31000
+        //
+        // Ring-allocating the command staging (instead of respecifying per batch) was
+        // tried first and moved the indirect tiers by less than noise, so the cost is the
+        // indirect draw path itself, not the upload. Only "ext" - a real multi-draw entry
+        // point rather than an indirect one - actually beats replaying the sub-draws.
+        //
+        // The compute tier is deliberately absent from the ladder: it rewrites the
+        // primitive stream rather than replaying it, and it measured slowest of all here,
+        // so it stays opt-in behind the env knob (the same call MobileGlues makes - its
+        // Auto never selects Compute either).
+        constexpr GLESMultiDrawMode kAutoLadder[] = {
+            GLESMultiDrawMode::Ext,      GLESMultiDrawMode::BaseVertex,   GLESMultiDrawMode::MultiIndirect,
+            GLESMultiDrawMode::Indirect, GLESMultiDrawMode::DrawElements,
+        };
+
+        Bool SupportsTier(GLESMultiDrawMode tier) {
+            return IsTierSupported(g_GLESCapabilities, g_GLESFuncs, tier);
+        }
+
+        GLESMultiDrawMode g_resolvedTier = GLESMultiDrawMode::Auto;
+        Bool g_tierResolved = false;
+        String g_tierResolution;
+
+        void ResolveTierOnce() {
+            if (g_tierResolved) return;
+            g_tierResolved = true;
+            g_resolvedTier =
+                ResolveTier(g_GLESCapabilities, g_GLESFuncs, MG_Config::Features.EsprytMultiDrawMode,
+                            &g_tierResolution);
+            MGLOG_I("DirectGLES multi-draw: %s", g_tierResolution.c_str());
+        }
+
+        // Which tiers have already announced themselves, one bit per GLESMultiDrawMode.
+        // The resolution line above says which tier was CHOSEN; this says which one a
+        // batch actually went through, and the two differ whenever a batch's shape
+        // demotes it. Worth a line each: a multi-draw path that resolves to a tier and
+        // then quietly runs a different one is exactly how "the batch drew nothing"
+        // hides.
+        Uint32 g_announcedTiers = 0;
+
+        void NoteTierExecuted(GLESMultiDrawMode tier) {
+            const Uint32 bit = 1u << static_cast<Uint32>(tier);
+            if (g_announcedTiers & bit) return;
+            g_announcedTiers |= bit;
+            MGLOG_I("DirectGLES multi-draw: first batch executed via tier \"%s\"", TierName(tier));
+        }
+
+        // The tier this particular batch can actually take. A tier is demoted here when
+        // the batch's own shape - not the driver - rules it out; the compute tier keeps
+        // its remaining feasibility checks inside its implementation, where the data it
+        // has to walk is already in hand.
+        GLESMultiDrawMode ResolveTierForBatch(Bool programReadsDrawID, Bool hasIndexBuffer) {
+            ResolveTierOnce();
+            GLESMultiDrawMode tier = g_resolvedTier;
+
+            // Batched tiers issue one driver entry for the whole batch, so the emulated
+            // gl_DrawID uniform can only hold one value across every sub-draw. A program
+            // that reads gl_DrawID gets an unrolled tier, which feeds each sub-draw its
+            // own index (the spec's value); nothing else observes the difference.
+            const Bool batched = tier == GLESMultiDrawMode::Ext || tier == GLESMultiDrawMode::MultiIndirect ||
+                                 tier == GLESMultiDrawMode::Compute;
+            if (batched && programReadsDrawID) {
+                tier = SupportsTier(GLESMultiDrawMode::BaseVertex) ? GLESMultiDrawMode::BaseVertex
+                                                                   : GLESMultiDrawMode::DrawElements;
+            }
+
+            // The indirect tiers describe each sub-draw as an element offset into the
+            // bound element array buffer. A client-memory index array has no such buffer,
+            // and indirect draws are not defined without one.
+            if (!hasIndexBuffer &&
+                (tier == GLESMultiDrawMode::MultiIndirect || tier == GLESMultiDrawMode::Indirect)) {
+                tier = SupportsTier(GLESMultiDrawMode::BaseVertex) ? GLESMultiDrawMode::BaseVertex
+                                                                   : GLESMultiDrawMode::DrawElements;
+            }
+            return tier;
+        }
+
+        // ---------------------------------------------------------------------------
+        // Index rewriting, shared by the two tiers that fold base vertices into indices
+        // ---------------------------------------------------------------------------
+
+        // Both of those tiers emit GL_UNSIGNED_INT regardless of the source type. Keeping
+        // the source width would be wrong, not merely tight: GL adds baseVertex to the
+        // index at full precision, so a GL_UNSIGNED_SHORT index plus a base vertex past
+        // 65535 addresses a vertex the source type cannot spell. Widening also gives the
+        // rewritten stream a restart sentinel (0xFFFFFFFF) that survives the rebase.
+        void RebaseIndices(const Uint8* source, SizeT sourceIndexCount, SizeT indexSize, Int32 baseVertex,
+                           Bool restartActive, Uint32 restartSentinel, Uint32* out) {
+            const Uint32 baseVertexBits = static_cast<Uint32>(baseVertex);
+            for (SizeT i = 0; i < sourceIndexCount; ++i) {
+                Uint32 value = 0;
+                switch (indexSize) {
+                case 1: value = source[i]; break;
+                case 2: {
+                    Uint16 narrow = 0;
+                    std::memcpy(&narrow, source + i * 2, sizeof(narrow));
+                    value = narrow;
+                    break;
+                }
+                default: std::memcpy(&value, source + i * 4, sizeof(value)); break;
+                }
+                // Unsigned wraparound is the defined behaviour for a negative base vertex.
+                out[i] = (restartActive && value == restartSentinel) ? 0xFFFFFFFFu : value + baseVertexBits;
+            }
+        }
+
+        // CPU-readable bytes of one sub-draw's indices, from the frontend shadow of the
+        // bound index buffer or straight from the client array. Null when the sub-draw
+        // would read outside the buffer.
+        const Uint8* ResolveSubDrawIndices(const SharedPtr<MG_State::GLState::BufferObject>& indexBuffer,
+                                           const Uint8* indexBufferBytes, SizeT indexBufferSize, const void* indices,
+                                           SizeT indexCount, SizeT indexSize) {
+            if (!indexBuffer) {
+                return static_cast<const Uint8*>(indices);
+            }
+            if (!indexBufferBytes) return nullptr;
+            const SizeT byteOffset = reinterpret_cast<SizeT>(indices);
+            const SizeT byteEnd = byteOffset + indexCount * indexSize;
+            if (byteEnd > indexBufferSize || byteEnd < byteOffset) return nullptr;
+            return indexBufferBytes + byteOffset;
+        }
+
+        // ---------------------------------------------------------------------------
+        // Tier: Ext - one glMultiDrawElementsBaseVertexEXT
+        // ---------------------------------------------------------------------------
+
+        Bool RunExt(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices, GLsizei drawcount,
+                    const GLint* basevertex) {
+            if (!SupportsTier(GLESMultiDrawMode::Ext)) return false;
+            const GLint* baseVertices = basevertex;
+            if (!baseVertices) {
+                // glMultiDrawElements: every base vertex is 0, but the entry point still
+                // wants an array. One permanently-zero vector serves every such batch.
+                if (g_zeroBaseVertices.size() < static_cast<SizeT>(drawcount)) {
+                    g_zeroBaseVertices.resize(static_cast<SizeT>(drawcount), 0);
+                }
+                baseVertices = g_zeroBaseVertices.data();
+            }
+            g_GLESFuncs.glMultiDrawElementsBaseVertexEXT(mode, count, type, indices, drawcount, baseVertices);
+            NoteTierExecuted(GLESMultiDrawMode::Ext);
+            return true;
+        }
+
+        // ---------------------------------------------------------------------------
+        // Tiers: MultiIndirect / Indirect - synthesized indirect commands
+        // ---------------------------------------------------------------------------
+
+        Bool RunIndirect(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                         GLsizei drawcount, const GLint* basevertex, Bool batched, Bool feedDrawID) {
+            if (!SupportsTier(batched ? GLESMultiDrawMode::MultiIndirect : GLESMultiDrawMode::Indirect)) return false;
+            const SizeT indexSize = IndexTypeSize(type);
+            if (indexSize == 0) return false;
+            // Indirect commands address indices as an element offset into the bound element
+            // array buffer, and an indirect draw is not defined without one.
+            const auto& indexBuffer = BoundIndexBuffer();
+            if (!indexBuffer) return false;
+
+            g_commandStaging.resize(static_cast<SizeT>(drawcount));
+            for (GLsizei i = 0; i < drawcount; ++i) {
+                const SizeT byteOffset = reinterpret_cast<SizeT>(indices[i]);
+                // firstIndex counts elements, so an offset that is not a whole number of
+                // them cannot be expressed as a command at all.
+                if (byteOffset % indexSize != 0) return false;
+                auto& command = g_commandStaging[static_cast<SizeT>(i)];
+                command.count = count[i] > 0 ? static_cast<Uint32>(count[i]) : 0u;
+                command.instanceCount = 1;
+                command.firstIndex = static_cast<Uint32>(byteOffset / indexSize);
+                command.baseVertex = basevertex ? basevertex[i] : 0;
+                command.baseInstance = 0;
+            }
+
+            const SizeT commandBytes = g_commandStaging.size() * sizeof(DrawElementsIndirectCommand);
+            SizeT commandBase = 0;
+            if (!UploadScratchRing(g_indirectCommands, commandBytes, g_commandStaging.data(), commandBase)) {
+                return false;
+            }
+
+            // Every synthesized command carries baseInstance 0. Say so through the direct
+            // path, which also clears the indirect-params word index a preceding real
+            // indirect draw may have left pointing into its own command buffer.
+            SetCurrentBaseInstance(0);
+
+            const Uint previousIndirectBinding = BoundDrawIndirectBufferId();
+            BufferImpl::BindBufferId(GL_DRAW_INDIRECT_BUFFER, g_indirectCommands.id);
+            if (batched) {
+                g_GLESFuncs.glMultiDrawElementsIndirectEXT(mode, type, reinterpret_cast<const void*>(commandBase),
+                                                           drawcount, 0);
+            } else {
+                for (GLsizei i = 0; i < drawcount; ++i) {
+                    if (feedDrawID) SetCurrentDrawID(static_cast<Uint32>(i));
+                    const SizeT commandOffset = commandBase + static_cast<SizeT>(i) * sizeof(DrawElementsIndirectCommand);
+                    g_GLESFuncs.glDrawElementsIndirect(mode, type, reinterpret_cast<const void*>(commandOffset));
+                }
+                if (feedDrawID) SetCurrentDrawID(0);
+            }
+            BufferImpl::BindBufferId(GL_DRAW_INDIRECT_BUFFER, previousIndirectBinding);
+            NoteTierExecuted(batched ? GLESMultiDrawMode::MultiIndirect : GLESMultiDrawMode::Indirect);
+            return true;
+        }
+
+        // ---------------------------------------------------------------------------
+        // Tier: BaseVertex - the per-sub-draw replay
+        // ---------------------------------------------------------------------------
+
+        Bool RunBaseVertexLoop(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                               GLsizei drawcount, const GLint* basevertex, Bool feedDrawID) {
+            if (!SupportsTier(GLESMultiDrawMode::BaseVertex)) return false;
+            for (GLsizei i = 0; i < drawcount; ++i) {
+                if (count[i] <= 0) continue;
+                if (feedDrawID) SetCurrentDrawID(static_cast<Uint32>(i));
+                g_GLESFuncs.glDrawElementsBaseVertex(mode, count[i], type, indices[i],
+                                                     basevertex ? basevertex[i] : 0);
+            }
+            if (feedDrawID) SetCurrentDrawID(0);
+            NoteTierExecuted(GLESMultiDrawMode::BaseVertex);
+            return true;
+        }
+
+        // ---------------------------------------------------------------------------
+        // Tier: DrawElements - base vertices folded into a scratch index stream
+        // ---------------------------------------------------------------------------
+
+        Bool RunRebasedDrawElements(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                                    GLsizei drawcount, const GLint* basevertex, Bool feedDrawID) {
+            const SizeT indexSize = IndexTypeSize(type);
+            if (indexSize == 0) return false;
+
+            SizeT total = 0;
+            for (GLsizei i = 0; i < drawcount; ++i) {
+                if (count[i] > 0) total += static_cast<SizeT>(count[i]);
+            }
+            if (total == 0) return true;
+            if (total > kMaxFlattenedIndices) return false;
+
+            const auto& indexBuffer = BoundIndexBuffer();
+            const Uint8* indexBufferBytes = nullptr;
+            SizeT indexBufferSize = 0;
+            if (indexBuffer) {
+                // The shadow is the source of truth for CPU reads, but a persistent map or
+                // a shader write may have moved past it since the last sync.
+                indexBuffer->SyncPersistentMappedRange();
+                indexBuffer->SyncGpuWrites();
+                indexBufferBytes = indexBuffer->MappedData();
+                indexBufferSize = indexBuffer->GetSize();
+            }
+
+            const Bool restartActive = RestartActive();
+            const Uint32 restartSentinel = RestartSentinelFor(type);
+            g_indexStaging.resize(total);
+            SizeT cursor = 0;
+            for (GLsizei i = 0; i < drawcount; ++i) {
+                if (count[i] <= 0) continue;
+                const SizeT subDrawCount = static_cast<SizeT>(count[i]);
+                const Uint8* source = ResolveSubDrawIndices(indexBuffer, indexBufferBytes, indexBufferSize, indices[i],
+                                                            subDrawCount, indexSize);
+                if (!source) {
+                    MGLOG_E("DirectGLES multi-draw (drawelements tier): sub-draw %d reads outside the bound index "
+                            "buffer; skipping the batch",
+                            i);
+                    return false;
+                }
+                RebaseIndices(source, subDrawCount, indexSize, basevertex ? basevertex[i] : 0, restartActive,
+                              restartSentinel, g_indexStaging.data() + cursor);
+                cursor += subDrawCount;
+            }
+
+            SizeT indexBase = 0;
+            if (!UploadScratchRing(g_rebasedIndices, total * sizeof(Uint32), g_indexStaging.data(), indexBase)) {
+                return false;
+            }
+
+            const Uint previousIndexBinding = BoundIndexBufferId();
+            BufferImpl::BindBufferId(GL_ELEMENT_ARRAY_BUFFER, g_rebasedIndices.id);
+            cursor = 0;
+            for (GLsizei i = 0; i < drawcount; ++i) {
+                if (count[i] <= 0) continue;
+                if (feedDrawID) SetCurrentDrawID(static_cast<Uint32>(i));
+                g_GLESFuncs.glDrawElements(mode, count[i], GL_UNSIGNED_INT,
+                                           reinterpret_cast<const void*>(indexBase + cursor * sizeof(Uint32)));
+                cursor += static_cast<SizeT>(count[i]);
+            }
+            if (feedDrawID) SetCurrentDrawID(0);
+            BufferImpl::BindBufferId(GL_ELEMENT_ARRAY_BUFFER, previousIndexBinding);
+            NoteTierExecuted(GLESMultiDrawMode::DrawElements);
+            return true;
+        }
+
+        // ---------------------------------------------------------------------------
+        // Tier: Compute - the whole batch flattened into one rebased index stream
+        // ---------------------------------------------------------------------------
+
+        // One index per invocation. The sub-draw an output slot belongs to is found by
+        // binary search over the inclusive prefix sums of the sub-draw counts, which is
+        // why the descriptors are sorted by construction. Sub-draws with a zero count
+        // repeat the previous prefix sum and are therefore skipped by the search.
+        //
+        // Three storage blocks, not the five the shape suggests: ES 3.1 only guarantees
+        // four per compute stage, so the per-sub-draw descriptors share one buffer.
+        constexpr const char* kFlattenComputeSource = R"(#version 310 es
+layout(local_size_x = 64) in;
+
+uniform uint uElementSize;
+uniform uint uDrawCount;
+uniform uint uTotalIndices;
+
+layout(std430, binding = 0) readonly buffer SourceIndices { uint sourceWords[]; };
+layout(std430, binding = 1) readonly buffer DrawInfo { uint drawInfo[]; };
+layout(std430, binding = 2) writeonly buffer FlatIndices { uint flatIndices[]; };
+
+uint ReadSourceIndex(uint element) {
+    if (uElementSize == 4u) {
+        return sourceWords[element];
+    }
+    if (uElementSize == 2u) {
+        uint word = sourceWords[element >> 1u];
+        return (word >> ((element & 1u) * 16u)) & 0xFFFFu;
+    }
+    uint word = sourceWords[element >> 2u];
+    return (word >> ((element & 3u) * 8u)) & 0xFFu;
+}
+
+void main() {
+    uint outIndex = gl_GlobalInvocationID.x;
+    if (outIndex >= uTotalIndices) {
+        return;
+    }
+
+    uint low = 0u;
+    uint high = uDrawCount - 1u;
+    while (low < high) {
+        uint mid = low + (high - low) / 2u;
+        if (drawInfo[mid * 3u + 2u] > outIndex) {
+            high = mid;
+        } else {
+            low = mid + 1u;
+        }
+    }
+
+    uint localIndex = outIndex - (low == 0u ? 0u : drawInfo[(low - 1u) * 3u + 2u]);
+    // Unsigned wraparound is the defined behaviour for a negative base vertex. No
+    // restart sentinel handling: the tier declines outright while restart is enabled.
+    flatIndices[outIndex] = ReadSourceIndex(localIndex + drawInfo[low * 3u]) + drawInfo[low * 3u + 1u];
+}
+)";
+
+        struct FlattenedStream {
+            Uint bufferId = 0;
+            SizeT indexCount = 0;
+        };
+
+        Bool EnsureComputeProgram() {
+            if (g_computeProgram != 0) return true;
+            if (g_computeProgramFailed) return false;
+            g_computeProgramFailed = true; // cleared again only on a complete success
+
+            const GLuint shader = g_GLESFuncs.glCreateShader(GL_COMPUTE_SHADER);
+            if (shader == 0) {
+                MGLOG_E("DirectGLES multi-draw (compute tier): glCreateShader(GL_COMPUTE_SHADER) failed");
+                return false;
+            }
+            const char* source = kFlattenComputeSource;
+            g_GLESFuncs.glShaderSource(shader, 1, &source, nullptr);
+            g_GLESFuncs.glCompileShader(shader);
+            GLint status = GL_FALSE;
+            g_GLESFuncs.glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
+            if (status != GL_TRUE) {
+                char log[1024] = {};
+                g_GLESFuncs.glGetShaderInfoLog(shader, sizeof(log) - 1, nullptr, log);
+                MGLOG_E("DirectGLES multi-draw (compute tier): index-flattening shader failed to compile: %s", log);
+                g_GLESFuncs.glDeleteShader(shader);
+                return false;
+            }
+
+            const GLuint program = g_GLESFuncs.glCreateProgram();
+            if (program == 0) {
+                MGLOG_E("DirectGLES multi-draw (compute tier): glCreateProgram failed");
+                g_GLESFuncs.glDeleteShader(shader);
+                return false;
+            }
+            g_GLESFuncs.glAttachShader(program, shader);
+            g_GLESFuncs.glLinkProgram(program);
+            g_GLESFuncs.glDeleteShader(shader);
+            g_GLESFuncs.glGetProgramiv(program, GL_LINK_STATUS, &status);
+            if (status != GL_TRUE) {
+                char log[1024] = {};
+                g_GLESFuncs.glGetProgramInfoLog(program, sizeof(log) - 1, nullptr, log);
+                MGLOG_E("DirectGLES multi-draw (compute tier): index-flattening program failed to link: %s", log);
+                g_GLESFuncs.glDeleteProgram(program);
+                return false;
+            }
+
+            g_computeProgram = program;
+            g_uElementSize = g_GLESFuncs.glGetUniformLocation(program, "uElementSize");
+            g_uDrawCount = g_GLESFuncs.glGetUniformLocation(program, "uDrawCount");
+            g_uTotalIndices = g_GLESFuncs.glGetUniformLocation(program, "uTotalIndices");
+            g_computeProgramFailed = false;
+            MGLOG_I("DirectGLES multi-draw: index-flattening compute program ready (id %u)", program);
+            return true;
+        }
+
+        // Builds the flattened stream, or leaves `out` empty when this batch's shape rules
+        // the tier out. Runs BEFORE PrepareForDraw - see the call site - so it may leave
+        // the compute program current and the first storage points unbound; the
+        // preparation that follows re-establishes both.
+        void FlattenWithCompute(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                                GLsizei drawcount, const GLint* basevertex, FlattenedStream& out) {
+            if (!SupportsTier(GLESMultiDrawMode::Compute)) return;
+            const SizeT indexSize = IndexTypeSize(type);
+            if (indexSize == 0) return;
+
+            // Merging sub-draws into a single draw only reproduces the original primitive
+            // stream for list-shaped modes: a strip, loop or fan would gain primitives
+            // spanning the seam between two sub-draws.
+            const Uint32 primitiveSize = ConcatenablePrimitiveSize(mode);
+            if (primitiveSize == 0) return;
+
+            // Primitive restart defeats the whole-multiple-of-a-primitive argument below,
+            // even for a list mode. A restart ends the current primitive, so a sub-draw of
+            // six GL_TRIANGLES indices with a restart after the third emits ONE triangle
+            // and drops the two leftover vertices - and once concatenated those leftovers
+            // find a third vertex in the next sub-draw and become a triangle that GL never
+            // draws. Splicing separator sentinels into the flattened stream could fix it,
+            // at the cost of a per-sub-draw offset the prefix-sum layout does not carry;
+            // declining is the honest trade for a tier that is already opt-in.
+            if (RestartActive()) return;
+
+            // The shader reads the source indices as a storage buffer, so there has to be
+            // a real buffer to read - a client-memory index array has none.
+            const auto& indexBuffer = BoundIndexBuffer();
+            if (!indexBuffer) return;
+
+            // A dispatch inside an open capture span is not legal, and the span would also
+            // observe one merged draw rather than the batch it asked for.
+            if (XfbImpl::IsCaptureSpanOpen()) return;
+
+            auto* sourceResource = BufferImpl::EnsureBufferResource(indexBuffer);
+            if (!sourceResource || sourceResource->id == 0) return;
+            const SizeT sourceSize = indexBuffer->GetSize();
+            // std430 addresses the source as uint[]; a tail shorter than a word is not
+            // reachable, so a narrow index type needs a word-multiple buffer.
+            if (indexSize < 4 && (sourceSize % 4) != 0) return;
+
+            g_drawInfoStaging.resize(3 * static_cast<SizeT>(drawcount));
+            SizeT total = 0;
+            for (GLsizei i = 0; i < drawcount; ++i) {
+                const SizeT subDrawCount = count[i] > 0 ? static_cast<SizeT>(count[i]) : 0;
+                // GL drops a trailing partial primitive per sub-draw; concatenation would
+                // instead splice it onto the next sub-draw's first vertices.
+                if (subDrawCount % primitiveSize != 0) return;
+                const SizeT byteOffset = reinterpret_cast<SizeT>(indices[i]);
+                if (byteOffset % indexSize != 0) return;
+                if (subDrawCount != 0) {
+                    const SizeT byteEnd = byteOffset + subDrawCount * indexSize;
+                    if (byteEnd > sourceSize || byteEnd < byteOffset) return;
+                }
+                total += subDrawCount;
+                if (total > kMaxComputeFlattenedIndices) return;
+                const SizeT slot = 3 * static_cast<SizeT>(i);
+                g_drawInfoStaging[slot] = static_cast<Uint32>(byteOffset / indexSize);
+                g_drawInfoStaging[slot + 1] = static_cast<Uint32>(basevertex ? basevertex[i] : 0);
+                g_drawInfoStaging[slot + 2] = static_cast<Uint32>(total);
+            }
+            if (total == 0) return; // nothing to draw; the ordinary tiers no-op just as well
+
+            if (!EnsureComputeProgram()) return;
+            if (!UploadScratch(g_drawInfo, g_drawInfoStaging.size() * sizeof(Uint32), g_drawInfoStaging.data())) {
+                return;
+            }
+            if (!UploadScratch(g_flattenedIndices, total * sizeof(Uint32), nullptr)) return;
+
+            BufferImpl::BindBufferBaseCached(GL_SHADER_STORAGE_BUFFER, 0, sourceResource->id);
+            BufferImpl::BindBufferBaseCached(GL_SHADER_STORAGE_BUFFER, 1, g_drawInfo.id);
+            BufferImpl::BindBufferBaseCached(GL_SHADER_STORAGE_BUFFER, 2, g_flattenedIndices.id);
+
+            g_GLESFuncs.glUseProgram(g_computeProgram);
+            PrgramImpl::g_lastUsedBackendProgramId = g_computeProgram;
+            if (g_uElementSize >= 0) g_GLESFuncs.glUniform1ui(g_uElementSize, static_cast<GLuint>(indexSize));
+            if (g_uDrawCount >= 0) g_GLESFuncs.glUniform1ui(g_uDrawCount, static_cast<GLuint>(drawcount));
+            if (g_uTotalIndices >= 0) g_GLESFuncs.glUniform1ui(g_uTotalIndices, static_cast<GLuint>(total));
+
+            g_GLESFuncs.glDispatchCompute(
+                static_cast<GLuint>((total + kComputeWorkGroupSize - 1) / kComputeWorkGroupSize), 1, 1);
+            g_GLESFuncs.glMemoryBarrier(GL_SHADER_STORAGE_BARRIER_BIT | GL_ELEMENT_ARRAY_BARRIER_BIT);
+
+            // Hand the storage points back to their GL default. PrepareForDraw re-syncs
+            // only the points the app has actually touched, so leaving a scratch buffer on
+            // an untouched point would keep it visible to the next shader that declares one.
+            for (Uint point = 0; point < 3; ++point) {
+                BufferImpl::BindBufferBaseCached(GL_SHADER_STORAGE_BUFFER, point, 0);
+            }
+
+            NoteTierExecuted(GLESMultiDrawMode::Compute);
+            out.bufferId = g_flattenedIndices.id;
+            out.indexCount = total;
+        }
+    } // namespace
+
+    // -------------------------------------------------------------------------------
+    // Public surface
+    // -------------------------------------------------------------------------------
+
+    Bool IsTierSupported(const MG_External::GLESCapabilities& caps, const MG_External::GLESFunctionsTable& funcs,
+                         GLESMultiDrawMode tier) {
+        const Bool esAtLeast31 =
+            caps.GLESVersion.Major > 3 || (caps.GLESVersion.Major == 3 && caps.GLESVersion.Minor >= 1);
+        switch (tier) {
+        case GLESMultiDrawMode::Ext:
+            return caps.SupportsMultiDrawElementsBaseVertex;
+        case GLESMultiDrawMode::MultiIndirect:
+            return caps.SupportsMultiDrawIndirect && esAtLeast31 && funcs.glDrawElementsIndirect != nullptr;
+        case GLESMultiDrawMode::Indirect:
+            return esAtLeast31 && funcs.glDrawElementsIndirect != nullptr;
+        case GLESMultiDrawMode::BaseVertex:
+            return caps.SupportsDrawElementsBaseVertex;
+        case GLESMultiDrawMode::DrawElements:
+            // Plain glDrawElements over a rewritten index stream: ES 2 core, so this is
+            // the floor every other tier can fall back to.
+            return true;
+        case GLESMultiDrawMode::Compute:
+            // Three storage blocks, which is inside the four ES 3.1 guarantees per stage.
+            return caps.SupportsComputeShader && caps.MaxComputeShaderStorageBlocks >= 3 &&
+                   funcs.glBindBufferBase != nullptr;
+        case GLESMultiDrawMode::Auto:
+            break;
+        }
+        return false;
+    }
+
+    GLESMultiDrawMode ResolveTier(const MG_External::GLESCapabilities& caps,
+                                  const MG_External::GLESFunctionsTable& funcs, GLESMultiDrawMode requested,
+                                  String* explanation) {
+        const auto bestAuto = [&]() {
+            for (const GLESMultiDrawMode tier : kAutoLadder) {
+                if (IsTierSupported(caps, funcs, tier)) return tier;
+            }
+            return GLESMultiDrawMode::DrawElements;
+        };
+
+        GLESMultiDrawMode resolved = GLESMultiDrawMode::DrawElements;
+        String line;
+        if (requested == GLESMultiDrawMode::Auto) {
+            resolved = bestAuto();
+            line = String("auto -> ") + TierName(resolved);
+        } else if (IsTierSupported(caps, funcs, requested)) {
+            resolved = requested;
+            line = String("MOBILEGL_ESPRYT_MULTIDRAW_MODE=") + TierName(requested) + " -> " + TierName(resolved);
+        } else {
+            resolved = bestAuto();
+            line = String("MOBILEGL_ESPRYT_MULTIDRAW_MODE=") + TierName(requested) +
+                   " requested but unsupported by this driver -> " + TierName(resolved);
+        }
+
+        if (explanation) {
+            String supported;
+            for (const GLESMultiDrawMode tier : kAutoLadder) {
+                if (!IsTierSupported(caps, funcs, tier)) continue;
+                if (!supported.empty()) supported += ", ";
+                supported += TierName(tier);
+            }
+            if (IsTierSupported(caps, funcs, GLESMultiDrawMode::Compute)) {
+                supported += supported.empty() ? "compute (opt-in)" : ", compute (opt-in)";
+            }
+            *explanation = line + " (driver supports: " + supported + ")";
+        }
+        return resolved;
+    }
+
+    const char* TierName(GLESMultiDrawMode tier) {
+        switch (tier) {
+        case GLESMultiDrawMode::Auto: return "auto";
+        case GLESMultiDrawMode::Ext: return "ext";
+        case GLESMultiDrawMode::MultiIndirect: return "multiindirect";
+        case GLESMultiDrawMode::Indirect: return "indirect";
+        case GLESMultiDrawMode::BaseVertex: return "basevertex";
+        case GLESMultiDrawMode::DrawElements: return "drawelements";
+        case GLESMultiDrawMode::Compute: return "compute";
+        }
+        return "unknown";
+    }
+
+    GLESMultiDrawMode ResolvedTier() {
+        ResolveTierOnce();
+        return g_resolvedTier;
+    }
+
+    String DescribeTierResolution() {
+        ResolveTierOnce();
+        return g_tierResolution;
+    }
+
+    void OnBackendContextDestroyed() {
+        g_indirectCommands = {};
+        g_rebasedIndices = {};
+        g_drawInfo = {};
+        g_flattenedIndices = {};
+        g_computeProgram = 0;
+        g_computeProgramFailed = false;
+        g_uElementSize = -1;
+        g_uDrawCount = -1;
+        g_uTotalIndices = -1;
+    }
+
+    void DrawElementsBatch(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
+                           GLsizei drawcount, const GLint* basevertex) {
+        if (drawcount <= 0 || !count || !indices) return;
+        // State-independent and possibly throwing, so it runs before any GL work.
+        CheckPrimitiveRestartSupported(type);
+
+        const Bool hasIndexBuffer = BoundIndexBuffer() != nullptr;
+
+        // The compute tier dispatches BEFORE the draw state is established: doing it
+        // afterwards would mean unpicking the program, SSBO and index bindings
+        // PrepareForDraw just made, and a dispatch inside an open transform feedback
+        // span is not legal at all. On success it hands back a flattened index stream.
+        FlattenedStream flattened;
+        if (ResolvedTier() == GLESMultiDrawMode::Compute && !CurrentProgramReadsDrawID()) {
+            FlattenWithCompute(mode, count, type, indices, drawcount, basevertex, flattened);
+        }
+
+        PrepareForDraw(DrawSyncBit::IndexBuffer);
+
+        if (flattened.indexCount != 0) {
+            const Uint previousIndexBinding = BoundIndexBufferId();
+            BufferImpl::BindBufferId(GL_ELEMENT_ARRAY_BUFFER, flattened.bufferId);
+            g_GLESFuncs.glDrawElements(mode, static_cast<GLsizei>(flattened.indexCount), GL_UNSIGNED_INT, nullptr);
+            BufferImpl::BindBufferId(GL_ELEMENT_ARRAY_BUFFER, previousIndexBinding);
+            return;
+        }
+
+        const Bool feedDrawID = CurrentProgramReadsDrawID();
+        const GLESMultiDrawMode tier = ResolveTierForBatch(feedDrawID, hasIndexBuffer);
+
+        Bool drawn = false;
+        switch (tier) {
+        case GLESMultiDrawMode::Ext:
+            drawn = RunExt(mode, count, type, indices, drawcount, basevertex);
+            break;
+        case GLESMultiDrawMode::MultiIndirect:
+            drawn = RunIndirect(mode, count, type, indices, drawcount, basevertex, /*batched=*/true, feedDrawID);
+            break;
+        case GLESMultiDrawMode::Indirect:
+            drawn = RunIndirect(mode, count, type, indices, drawcount, basevertex, /*batched=*/false, feedDrawID);
+            break;
+        case GLESMultiDrawMode::BaseVertex:
+            drawn = RunBaseVertexLoop(mode, count, type, indices, drawcount, basevertex, feedDrawID);
+            break;
+        case GLESMultiDrawMode::DrawElements:
+            drawn = RunRebasedDrawElements(mode, count, type, indices, drawcount, basevertex, feedDrawID);
+            break;
+        case GLESMultiDrawMode::Compute:
+            // Its pre-pass ran above; reaching here means it declined this batch's shape.
+            break;
+        case GLESMultiDrawMode::Auto:
+            break; // resolution never yields Auto
+        }
+
+        // Every tier above may decline a batch whose shape it cannot express. The two
+        // below are the floor: a base-vertex replay where the driver has one, and the
+        // rewritten index stream where it does not. Both are safe for any batch these
+        // entry points can receive.
+        if (!drawn) drawn = RunBaseVertexLoop(mode, count, type, indices, drawcount, basevertex, feedDrawID);
+        if (!drawn) drawn = RunRebasedDrawElements(mode, count, type, indices, drawcount, basevertex, feedDrawID);
+        if (!drawn) {
+            MGLOG_E("DirectGLES multi-draw: no usable tier for a %d sub-draw batch (mode 0x%x, type 0x%x); "
+                    "the batch was dropped",
+                    drawcount, mode, type);
+        }
+    }
+} // namespace MobileGL::MG_Backend::DirectGLES::MultiDrawImpl