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139de76347d4381bd3aff25d12b578c590ecb460
MobileGL/MobileGL/MG_Backend/DirectGLES/Managers.cpp
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swung0x48andClaude Fable 5 139de76347 [Fix] (MG_State/MG_Impl/MG_Backend): render Flywheel instanced+indirect on both backends 
Create 6 / Flywheel 1.0.6 now renders correctly with both flywheel:instancing
and flywheel:indirect on DirectGLES and DirectVulkan (verified in-game on
Adreno 830: waterwheels and cogwheels solid, animated, correct pairing, no
crashes across all four combinations).

- MG_State/MG_Impl: sync explicitly-ranged SSBO bindings of FLUSH_EXPLICIT
  persistent maps to the backend before compute dispatches. Flywheel writes
  its scatter-copy descriptors into the staging ring's persistent map and
  never flushes that span (UB per spec, works on drivers whose maps alias
  GPU-visible memory); our maps alias the CPU shadow, so the descriptors
  never reached the GPU: the scatter compute copied nothing (GLES: empty
  draw commands) or stale garbage (Vulkan: wild indirect commands ending in
  VK_ERROR_DEVICE_LOST).
- MG_Impl/MG_Backend: real glFenceSync objects backed by backend fences
  (GLES: native ES syncs guarded by context generation and owner thread;
  Vulkan: buffer-manager frame serials), replacing always-signaled stubs
  that let Flywheel reclaim staging memory the GPU still reads.
- MG_Backend/DirectGLES: compute dispatches now run the same per-program
  resource sync as draws (uniform-block bindings and sampler units must be
  re-established through the API because layout(binding) is stripped from
  transpiled ESSL) and rebind texture units afterwards; the cull shader
  used to read a stale _FlwFrameUniforms binding and the depth-pyramid
  downsample sampled a stale unit-0 texture, zeroing the Hi-Z pyramid and
  occlusion-culling all Flywheel geometry. Image uniforms are excluded from
  glUniform1i (ES bakes their unit via layout(binding)); image-unit sync is
  clamped to the device limit; eliminated/SSBO-classified uniform blocks
  are skipped.
- MG_Backend/DirectGLES: gl_BaseInstance in native indirect draws reads the
  GPU-written command buffer through an injected mg_IndirectParams SSBO
  view addressed per draw instead of the zero CPU shadow; layout(binding)
  is preserved for SSBO/image declarations (ES has no API rebinding for
  them); the ES context ownership claim moved to a global atomic owner
  thread with an EGL ground-truth check, and deferred buffer op state is
  mutex-guarded, so ops cannot silently no-op after context migration.
- MG_Backend/DirectVulkan: new RebaseInstanceIndexPass rewrites vertex
  InstanceIndex loads to (InstanceIndex - BaseInstance). glslang's relaxed
  Vulkan mode aliases gl_InstanceID to InstanceIndex, which includes
  firstInstance, but GL's gl_InstanceID is zero-based - draws with nonzero
  baseInstance paired meshes with wrong instance data (cogwheel drawn as a
  waterwheel, another wheel collapsed invisible). Gated on the
  shaderDrawParameters device feature. Sampled-read barriers additionally
  cover the compute stage (the Hi-Z downsample samples the depth
  attachment from compute), and short uniform-buffer ranges keep the
  existing zero-padding.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-09 06:30:10 +00:00

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// MobileGL - MobileGL/MG_Backend/DirectGLES/Managers.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 "Managers.h"
#include "Utils.h"
#include "DirectGLES.h"
#include <MG_Util/ShaderTranspiler/ShaderCompiler.h>
#include <MG_Util/BackendLoaders/OpenGL/Loader.h>
#include <MG_Util/Converters/GLToStr/GLEnumConverter.h>
#include <MG_Util/Converters/MGToGL/DataTypeConverter.h>
#include <MG_Util/Converters/MGToGL/BufferEnumConverter.h>
#include <MG_Util/Converters/GLToMG/TextureEnumConverter.h>
#include <MG_Util/Converters/MGToGL/ProgramEnumConverter.h>
#include <MG_Util/Converters/MGToGL/TextureEnumConverter.h>
#include <MG_Util/Converters/MGToStr/TextureEnumConverter.h>
#include <MG_Util/Converters/MGToStr/FramebufferEnumConverter.h>
#include <MG_State/GLState/TextureState/TextureObjectBuffer.h>
#include <MG_Util/Converters/GLToMG/FramebufferEnumConverter.h>
#include <MG_Util/Converters/MGToGL/FramebufferEnumConverter.h>
#include <MG_State/GLState/FramebufferState/FramebufferObject.h>
#include <algorithm>
#include <cctype>
#include <cstdlib>
#include <cstring>
namespace MobileGL::MG_Backend::DirectGLES {
constexpr Bool PREFER_MAP_BUFFER_RANGE_FOR_BUFFER_SYNC = false;
constexpr const char* BASE_INSTANCE_UNIFORM_NAME = "mg_BaseInstance";
constexpr const char* DRAW_ID_UNIFORM_NAME = "mg_DrawID";
constexpr const char* BASE_VERTEX_UNIFORM_NAME = "mg_BaseVertex";
constexpr const char* BASE_INSTANCE_LOWERED_NAME = "mg_BaseInstanceLowered";
constexpr const char* BASE_INSTANCE_WORD_INDEX_UNIFORM_NAME = "mg_BaseInstanceWordIndex";
constexpr const char* INDIRECT_PARAMS_BLOCK_NAME = "mg_IndirectParams";
static Bool IsAngleLlvmpipeRenderer() {
return g_GLESCapabilities.GLESRendererString.find("ANGLE") != String::npos &&
g_GLESCapabilities.GLESRendererString.find("llvmpipe") != String::npos;
}
static Bool ShouldAvoidSamplerMipmapMinFilterOnAngleLlvmpipe() {
const char* value = std::getenv("MOBILEGL_ANGLE_LLVMPIPE_AVOID_SAMPLER_MIPMAP_MIN_FILTER");
return value != nullptr && std::strcmp(value, "1") == 0 && IsAngleLlvmpipeRenderer();
}
static GLenum ResolveBackendMinFilter(const SamplerParameters& samplerParams,
Bool avoidMipmapMinFilter) {
GLenum filter = MG_Util::ConvertSamplerFilterModeToGLEnum(samplerParams.minFilter,
samplerParams.mipmapMode);
if (!avoidMipmapMinFilter) {
return filter;
}
switch (filter) {
case GL_NEAREST_MIPMAP_NEAREST:
case GL_NEAREST_MIPMAP_LINEAR:
return GL_NEAREST;
case GL_LINEAR_MIPMAP_NEAREST:
case GL_LINEAR_MIPMAP_LINEAR:
return GL_LINEAR;
default:
return filter;
}
}
static Uint ResolveBackendEsslVersion() {
const auto& version = g_GLESCapabilities.GLESVersion;
if (version.Major > 3 || (version.Major == 3 && version.Minor >= 2)) {
return 320;
}
if (version.Major == 3 && version.Minor >= 1) {
return 310;
}
return 300;
}
String ReplaceIdentifier(String source, const String& from, const String& to) {
SizeT pos = 0;
while ((pos = source.find(from, pos)) != String::npos) {
const Bool leftIsIdent = pos > 0 &&
(std::isalnum(static_cast<unsigned char>(source[pos - 1])) || source[pos - 1] == '_');
const SizeT end = pos + from.size();
const Bool rightIsIdent = end < source.size() &&
(std::isalnum(static_cast<unsigned char>(source[end])) || source[end] == '_');
if (!leftIsIdent && !rightIsIdent) {
source.replace(pos, from.size(), to);
pos += to.size();
} else {
pos = end;
}
}
return source;
}
String InjectUniformAfterVersion(String source, const String& declaration) {
const SizeT versionPos = source.find("#version");
if (versionPos == String::npos) {
return declaration + "\n" + source;
}
const SizeT lineEnd = source.find('\n', versionPos);
if (lineEnd == String::npos) {
return source + "\n" + declaration + "\n";
}
source.insert(lineEnd + 1, declaration + "\n");
return source;
}
String EmulateBaseInstanceInVertexShader(String source, GLenum shaderType) {
if (shaderType != GL_VERTEX_SHADER || source.find("gl_BaseInstance") == String::npos) {
return source;
}
String replaced = ReplaceIdentifier(source, "gl_BaseInstance", BASE_INSTANCE_UNIFORM_NAME);
if (replaced == source) {
// Only a substring hit (e.g. gl_BaseInstanceARB inside a SPIRV-Cross #ifdef
// fallback); nothing was rewritten, so nothing must be declared either.
return source;
}
return InjectUniformAfterVersion(std::move(replaced),
String("uniform highp int ") + BASE_INSTANCE_UNIFORM_NAME + ";");
}
// The LowerDrawParametersPass demotes gl_DrawID / gl_BaseInstance / gl_BaseVertex to plain
// Private globals (mg_DrawID / mg_BaseInstanceLowered / mg_BaseVertex); SPIRV-Cross then
// emits them as ordinary global declarations. mg_DrawID / mg_BaseVertex become uniforms fed
// per (sub-)draw. gl_BaseInstance is special: for indirect draws its value lives in the
// (possibly GPU-written) indirect command buffer, so its declaration expands into a
// std430 SSBO view of that buffer indexed by a CPU-computed word index, with the plain
// mg_BaseInstance uniform as the fallback for non-indirect draws.
String PromoteDrawParameterGlobalsToUniforms(String source, GLenum shaderType) {
if (shaderType != GL_VERTEX_SHADER) {
return source;
}
for (const char* name : {DRAW_ID_UNIFORM_NAME, BASE_VERTEX_UNIFORM_NAME}) {
for (const char* declPrefix : {"highp int ", "mediump int ", "lowp int ", "int ", "highp uint ",
"mediump uint ", "uint "}) {
const String declaration = String(declPrefix) + name + ";";
const SizeT pos = source.find(declaration);
if (pos == String::npos) {
continue;
}
// Only promote a standalone global declaration, not a uniform we already emitted.
const Bool alreadyUniform = pos >= 8 && source.compare(pos - 8, 8, "uniform ") == 0;
if (!alreadyUniform) {
const Bool hasPrecision = std::strncmp(declPrefix, "int ", 4) != 0 &&
std::strncmp(declPrefix, "uint ", 5) != 0;
const String qualifier = hasPrecision ? "uniform " : "uniform highp ";
source.replace(pos, declaration.size(), qualifier + declaration);
}
break;
}
}
for (const char* declPrefix : {"highp int ", "mediump int ", "lowp int ", "int "}) {
const String declaration = String(declPrefix) + BASE_INSTANCE_LOWERED_NAME + ";";
const SizeT pos = source.find(declaration);
if (pos == String::npos) {
continue;
}
const Int paramsBinding = g_GLESCapabilities.MaxShaderStorageBufferBindings > 0
? g_GLESCapabilities.MaxShaderStorageBufferBindings - 1
: 0;
String machinery;
if (source.find(String("uniform highp int ") + BASE_INSTANCE_UNIFORM_NAME + ";") == String::npos) {
machinery += String("uniform highp int ") + BASE_INSTANCE_UNIFORM_NAME + ";\n";
}
machinery += String("uniform highp int ") + BASE_INSTANCE_WORD_INDEX_UNIFORM_NAME + ";\n";
machinery += String("layout(std430, binding = ") + std::to_string(paramsBinding) +
") readonly buffer " + INDIRECT_PARAMS_BLOCK_NAME +
" { highp uint mg_indirectWords[]; };\n";
machinery += String("#define ") + BASE_INSTANCE_LOWERED_NAME + " ((" +
BASE_INSTANCE_WORD_INDEX_UNIFORM_NAME + " >= 0) ? int(mg_indirectWords[uint(" +
BASE_INSTANCE_WORD_INDEX_UNIFORM_NAME + ")]) : " + BASE_INSTANCE_UNIFORM_NAME + ")";
source.replace(pos, declaration.size(), machinery);
break;
}
return source;
}
namespace BufferImpl {
namespace {
using MG_State::GLState::BackendBufferResource;
using MG_State::GLState::BufferBackendOps;
using MG_State::GLState::BufferObject;
// GL_ARRAY_BUFFER redundant-bind cache (id 0 = unknown/none).
Uint g_boundArrayBufferId = 0;
Bool g_boundArrayBufferKnown = false;
// Bumped whenever the backend ES context is destroyed; resources with
// an older generation hold ids from a dead context.
Uint g_bufferContextGeneration = 1;
// Resources whose owning BufferObject died; ids deleted at the next
// sync point with a current ES context.
Vector<SharedPtr<BackendBufferResource>> g_deferredBufferReleases;
std::mutex g_deferredBufferReleasesMutex;
GLESBufferResource* ResourceOf(BufferObject& bufferObject) {
return static_cast<GLESBufferResource*>(bufferObject.GetBackendResource().get());
}
Bool CanTouchGLNow() {
return DirectGLES::IsBackendContextCurrentOnThisThread();
}
// (Re)specify backend storage from the shadow copy: glBufferData.
// The orphaning point - the ES driver performs the actual rename.
void RespecifyStorageNow(GLESBufferResource& resource, BufferObject& bufferObject) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
const SizeT size = bufferObject.GetSize();
const GLenum usage = MG_Util::ConvertBufferUsageToGLEnum(bufferObject.GetUsage());
BindBufferId(TempBufferTarget, resource.id);
g_GLESFuncs.glBufferData(TempBufferTarget, (GLsizeiptr)size,
size > 0 ? bufferObject.GetDataReadOnly()->data() : nullptr, usage);
resource.storageSize = size;
resource.storageInitialized = true;
resource.pendingRespecify = false;
resource.pendingRanges.clear();
resource.syncedChangeSerial = bufferObject.GetChangeSerial();
}
Bool StorageMatches(const GLESBufferResource& resource, const BufferObject& bufferObject) {
return resource.storageInitialized && !resource.pendingRespecify &&
resource.storageSize == bufferObject.GetSize();
}
void UploadRangeNow(GLESBufferResource& resource, BufferObject& bufferObject, SizeT start, SizeT end) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (start >= end) return;
BindBufferId(TempBufferTarget, resource.id);
g_GLESFuncs.glBufferSubData(TempBufferTarget, (GLintptr)start, (GLsizeiptr)(end - start),
bufferObject.GetDataReadOnly()->data() + start);
}
void Ops_Respecify(BufferObject& bufferObject) {
auto* resource = ResourceOf(bufferObject);
if (!resource) return; // lazy: EnsureBufferResource full-uploads on creation
if (!CanTouchGLNow() || resource->id == 0 ||
resource->contextGeneration != g_bufferContextGeneration) {
resource->pendingRespecify = true;
resource->pendingRanges.clear();
return;
}
if (bufferObject.GetSize() == 0) {
resource->storageInitialized = false;
resource->storageSize = 0;
resource->pendingRespecify = false;
resource->pendingRanges.clear();
return;
}
RespecifyStorageNow(*resource, bufferObject);
}
void Ops_SubData(BufferObject& bufferObject, SizeT offset, SizeT size) {
auto* resource = ResourceOf(bufferObject);
if (!resource) return;
if (resource->pendingRespecify) return; // full re-upload pending anyway
if (!CanTouchGLNow() || resource->id == 0 ||
resource->contextGeneration != g_bufferContextGeneration ||
!StorageMatches(*resource, bufferObject)) {
resource->pendingRanges.Add({offset, offset + size});
return;
}
UploadRangeNow(*resource, bufferObject, offset, offset + size);
resource->syncedChangeSerial = bufferObject.GetChangeSerial();
}
void Ops_FlushMappedRange(BufferObject& bufferObject, Range1D range,
Flags<BufferMappingAccessBit> appAccess) {
auto* resource = ResourceOf(bufferObject);
if (!resource) return;
if (resource->pendingRespecify) return;
if (!CanTouchGLNow() || resource->id == 0 ||
resource->contextGeneration != g_bufferContextGeneration ||
!StorageMatches(*resource, bufferObject)) {
resource->pendingRanges.Add(range);
return;
}
// Honour the app's real mapping flags per call: only reach for a
// mapped upload when the app allowed invalidation/unsynchronized
// access, otherwise a plain glBufferSubData carries the exact
// synchronization semantics.
const Bool invalidate = (appAccess & BufferMappingAccessBit::InvalidateRange) ||
(appAccess & BufferMappingAccessBit::InvalidateBuffer);
const Bool unsynchronized = static_cast<Bool>(appAccess & BufferMappingAccessBit::Unsynchronized);
if (PREFER_MAP_BUFFER_RANGE_FOR_BUFFER_SYNC && (invalidate || unsynchronized)) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
BindBufferId(TempBufferTarget, resource->id);
void* mappedData = g_GLESFuncs.glMapBufferRange(
TempBufferTarget, (GLintptr)range.start, (GLsizeiptr)(range.end - range.start),
GL_MAP_WRITE_BIT | (invalidate ? GL_MAP_INVALIDATE_RANGE_BIT : 0) |
(unsynchronized ? GL_MAP_UNSYNCHRONIZED_BIT : 0));
if (mappedData) {
Memcpy(mappedData, bufferObject.GetDataReadOnly()->data() + range.start,
range.end - range.start);
g_GLESFuncs.glUnmapBuffer(TempBufferTarget);
resource->syncedChangeSerial = bufferObject.GetChangeSerial();
return;
}
MGLOG_E("Failed to map buffer with ID: %u for flush, falling back to glBufferSubData",
resource->id);
}
UploadRangeNow(*resource, bufferObject, range.start, range.end);
resource->syncedChangeSerial = bufferObject.GetChangeSerial();
}
void Ops_OnDestroy(SharedPtr<BackendBufferResource>&& resource) {
if (!resource) return;
auto* glesResource = static_cast<GLESBufferResource*>(resource.get());
if (glesResource->contextGeneration != g_bufferContextGeneration) {
glesResource->id = 0; // id belonged to a destroyed context
return;
}
if (CanTouchGLNow()) {
if (glesResource->id != 0) {
if (g_boundArrayBufferKnown && g_boundArrayBufferId == glesResource->id) {
InvalidateArrayBufferBindingCache();
}
g_GLESFuncs.glDeleteBuffers(1, &glesResource->id);
glesResource->id = 0;
}
return;
}
const std::lock_guard<std::mutex> lock(g_deferredBufferReleasesMutex);
g_deferredBufferReleases.push_back(std::move(resource));
}
const BufferBackendOps g_glesBufferBackendOps = {
.Respecify = Ops_Respecify,
.SubData = Ops_SubData,
.FlushMappedRange = Ops_FlushMappedRange,
.OnDestroy = Ops_OnDestroy,
};
} // namespace
void RegisterBufferBackendOps() {
MG_State::GLState::SetBufferBackendOps(&g_glesBufferBackendOps);
}
void UnregisterBufferBackendOps() {
if (MG_State::GLState::GetBufferBackendOps() == &g_glesBufferBackendOps) {
MG_State::GLState::SetBufferBackendOps(nullptr);
}
InvalidateArrayBufferBindingCache();
const std::lock_guard<std::mutex> lock(g_deferredBufferReleasesMutex);
// The ES context owning these ids is going away; just drop the handles.
g_deferredBufferReleases.clear();
}
void OnBackendContextDestroyed() {
UnregisterBufferBackendOps();
++g_bufferContextGeneration;
}
void ProcessDeferredBufferReleases() {
if (!CanTouchGLNow()) return;
Vector<SharedPtr<BackendBufferResource>> releases;
{
const std::lock_guard<std::mutex> lock(g_deferredBufferReleasesMutex);
releases.swap(g_deferredBufferReleases);
}
for (auto& resource : releases) {
auto* glesResource = static_cast<GLESBufferResource*>(resource.get());
if (glesResource->contextGeneration != g_bufferContextGeneration) {
glesResource->id = 0;
continue;
}
if (glesResource->id != 0) {
if (g_boundArrayBufferKnown && g_boundArrayBufferId == glesResource->id) {
InvalidateArrayBufferBindingCache();
}
g_GLESFuncs.glDeleteBuffers(1, &glesResource->id);
glesResource->id = 0;
}
}
}
GLESBufferResource* GetBufferResource(MG_State::GLState::BufferObject* bufferObject) {
if (!bufferObject) return nullptr;
return static_cast<GLESBufferResource*>(bufferObject->GetBackendResource().get());
}
GLESBufferResource* EnsureBufferResource(const SharedPtr<MG_State::GLState::BufferObject>& bufferObject) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (!bufferObject) return nullptr;
auto* resource = static_cast<GLESBufferResource*>(bufferObject->GetBackendResource().get());
if (!resource) {
auto newResource = MakeShared<GLESBufferResource>();
newResource->pendingRespecify = true;
resource = newResource.get();
bufferObject->SetBackendResource(std::move(newResource));
}
if (resource->contextGeneration != g_bufferContextGeneration) {
// The id (if any) belonged to a destroyed ES context.
resource->id = 0;
resource->storageInitialized = false;
resource->storageSize = 0;
resource->pendingRespecify = true;
resource->pendingRanges.clear();
resource->contextGeneration = g_bufferContextGeneration;
}
if (resource->id == 0) {
g_GLESFuncs.glGenBuffers(1, &resource->id);
if (resource->id == 0) {
MGLOG_E("Failed to generate buffer object.");
MGLOG_E("ES glGetError(): %s", MG_Util::ConvertGLEnumToString(g_GLESFuncs.glGetError()).c_str());
return resource;
}
resource->storageInitialized = false;
resource->pendingRespecify = true;
}
// Push persistently-mapped writes first; lands either as an immediate
// SubData (fresh storage) or as part of the full re-upload below.
bufferObject->SyncPersistentMappedRange();
if (bufferObject->GetSize() == 0) {
return resource;
}
if (resource->pendingRespecify || !resource->storageInitialized ||
resource->storageSize != bufferObject->GetSize()) {
RespecifyStorageNow(*resource, *bufferObject);
} else if (!resource->pendingRanges.empty()) {
for (const auto& range : resource->pendingRanges) {
const SizeT end = std::min(range.end, bufferObject->GetSize());
UploadRangeNow(*resource, *bufferObject, std::min(range.start, end), end);
}
resource->pendingRanges.clear();
resource->syncedChangeSerial = bufferObject->GetChangeSerial();
} else if (resource->syncedChangeSerial != bufferObject->GetChangeSerial()) {
// Ops could not track some writes (e.g. the ops table was
// unregistered between contexts); re-upload everything.
RespecifyStorageNow(*resource, *bufferObject);
}
return resource;
}
void BindBufferId(GLenum target, Uint id) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (target == GL_ARRAY_BUFFER) {
if (g_boundArrayBufferKnown && g_boundArrayBufferId == id) {
return;
}
g_boundArrayBufferId = id;
g_boundArrayBufferKnown = true;
}
g_GLESFuncs.glBindBuffer(target, id);
}
void InvalidateArrayBufferBindingCache() {
g_boundArrayBufferId = 0;
g_boundArrayBufferKnown = false;
}
} // namespace BufferImpl
namespace VertexArrayImpl {
namespace {
SizeT GetDataTypeSize(DataType type) {
switch (type) {
case DataType::Int8:
case DataType::Uint8:
return 1;
case DataType::Int16:
case DataType::Uint16:
case DataType::Float16:
return 2;
case DataType::Int32:
case DataType::Uint32:
case DataType::Float32:
case DataType::Fixed32:
return 4;
case DataType::Float64:
return 8;
default:
return 0;
}
}
} // namespace
BackendVertexArrayObject::BackendVertexArrayObject() {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
m_clientAttributeBufferIds.fill(0);
g_GLESFuncs.glGenVertexArrays(1, &m_backendVAOId);
if (m_backendVAOId == 0) {
MGLOG_E("Failed to generate vertex array object.");
MGLOG_E("ES glGetError(): %s", MG_Util::ConvertGLEnumToString(g_GLESFuncs.glGetError()).c_str());
} else {
MGLOG_D("Generated vertex array object with ID: %u.", m_backendVAOId);
}
}
BackendVertexArrayObject::~BackendVertexArrayObject() {
if (m_backendVAOId != 0) {
g_GLESFuncs.glDeleteVertexArrays(1, &m_backendVAOId);
m_backendVAOId = 0;
}
for (auto& bufferId : m_clientAttributeBufferIds) {
if (bufferId != 0) {
g_GLESFuncs.glDeleteBuffers(1, &bufferId);
bufferId = 0;
}
}
}
void BackendVertexArrayObject::Bind() const {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
g_GLESFuncs.glBindVertexArray(m_backendVAOId);
}
inline Bool BindAttributeBuffer(const MG_State::GLState::VertexAttribute& attrib) {
const auto& bufferObject = attrib.Buffer;
if (!bufferObject) {
MGLOG_W("Attribute has no bound buffer, skipping.");
return false;
}
auto* backendResource = BufferImpl::EnsureBufferResource(bufferObject);
if (!backendResource || backendResource->id == 0) {
MGLOG_E("No backend buffer found for attribute's buffer, cannot bind attribute.");
return false;
}
BufferImpl::BindBufferId(GL_ARRAY_BUFFER, backendResource->id);
return true;
}
void BackendVertexArrayObject::SyncToBackend(
const SharedPtr<MG_State::GLState::VertexArrayObject>& stateVAOObject) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (!stateVAOObject) {
MGLOG_E("State VAO object is null, cannot sync to backend.");
return;
}
MGLOG_D("Syncing VAO with backend ID %u to backend for state ID %u", m_backendVAOId,
stateVAOObject->GetExternalIndex());
Bind();
const auto& allAttributeVersions = stateVAOObject->GetAllAttributeVersions();
const auto& allAttributes = stateVAOObject->GetAllAttributes();
for (Uint attribIndex = 0; attribIndex < allAttributes.size(); ++attribIndex) {
const auto& attrib = allAttributes[attribIndex];
Bool needsSyncSwitch = allAttributeVersions[attribIndex].SwitchVersion !=
m_syncedAttributeVersions[attribIndex].SwitchVersion;
if (needsSyncSwitch) {
if (attrib.Enabled) {
g_GLESFuncs.glEnableVertexAttribArray(attribIndex);
} else {
g_GLESFuncs.glDisableVertexAttribArray(attribIndex);
}
}
Bool needsSyncFormat = allAttributeVersions[attribIndex].FormatVersion !=
m_syncedAttributeVersions[attribIndex].FormatVersion;
Bool needsSyncBuffer = allAttributeVersions[attribIndex].BufferVersion !=
m_syncedAttributeVersions[attribIndex].BufferVersion;
if (!needsSyncFormat && !needsSyncBuffer) continue;
if (!BindAttributeBuffer(attrib)) {
continue;
}
if (!attrib.IsInteger) {
g_GLESFuncs.glVertexAttribPointer(
attribIndex, attrib.Size, MG_Util::ConvertDataTypeToGLEnum(attrib.Type),
attrib.Normalized ? GL_TRUE : GL_FALSE, attrib.Stride, (const void*)attrib.Offset);
} else {
g_GLESFuncs.glVertexAttribIPointer(attribIndex, attrib.Size,
MG_Util::ConvertDataTypeToGLEnum(attrib.Type), attrib.Stride,
(const void*)attrib.Offset);
}
if (needsSyncFormat) {
g_GLESFuncs.glVertexAttribDivisor(attribIndex, attrib.Divisor);
}
}
Uint16 currentIndexBufferVersion = stateVAOObject->GetIndexBufferBindingSlot().GetVersion();
if (currentIndexBufferVersion != m_syncedIndexBufferVersion) {
const auto& indexBufferBinding = stateVAOObject->GetIndexBufferBindingSlot().GetBoundObject();
Bool indexBufferSynced = false;
if (indexBufferBinding) {
auto* backendResource = BufferImpl::EnsureBufferResource(indexBufferBinding);
if (backendResource && backendResource->id != 0) {
BufferImpl::BindBufferId(GL_ELEMENT_ARRAY_BUFFER, backendResource->id);
indexBufferSynced = true;
} else {
MGLOG_W("No backend buffer found for index buffer binding, cannot bind index buffer.");
}
} else {
g_GLESFuncs.glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
indexBufferSynced = true;
}
if (indexBufferSynced) {
m_syncedIndexBufferVersion = currentIndexBufferVersion;
}
}
m_syncedAttributeVersions = allAttributeVersions;
}
void BackendVertexArrayObject::SyncClientSideAttributesForDrawArrays(
const SharedPtr<MG_State::GLState::VertexArrayObject>& stateVAOObject, GLint first, GLsizei count) {
if (!stateVAOObject || count <= 0 || first < 0) {
return;
}
Bind();
const auto& allAttributes = stateVAOObject->GetAllAttributes();
for (Uint attribIndex = 0; attribIndex < allAttributes.size(); ++attribIndex) {
const auto& attrib = allAttributes[attribIndex];
if (!attrib.Enabled || attrib.Buffer) {
continue;
}
const auto* clientData = reinterpret_cast<const Uint8*>(attrib.Offset);
const SizeT componentSize = GetDataTypeSize(attrib.Type);
if (!clientData || componentSize == 0 || attrib.Size <= 0) {
continue;
}
const SizeT elementSize = componentSize * static_cast<SizeT>(attrib.Size);
const SizeT stride = attrib.Stride > 0 ? static_cast<SizeT>(attrib.Stride) : elementSize;
const SizeT uploadSize = static_cast<SizeT>(first + count - 1) * stride + elementSize;
auto& bufferId = m_clientAttributeBufferIds[attribIndex];
if (bufferId == 0) {
g_GLESFuncs.glGenBuffers(1, &bufferId);
if (bufferId == 0) {
MGLOG_E("Failed to create client-side vertex attribute upload buffer.");
continue;
}
}
BufferImpl::BindBufferId(GL_ARRAY_BUFFER, bufferId);
g_GLESFuncs.glBufferData(GL_ARRAY_BUFFER, static_cast<GLsizeiptr>(uploadSize), clientData,
GL_STREAM_DRAW);
if (!attrib.IsInteger) {
g_GLESFuncs.glVertexAttribPointer(
attribIndex, attrib.Size, MG_Util::ConvertDataTypeToGLEnum(attrib.Type),
attrib.Normalized ? GL_TRUE : GL_FALSE, static_cast<GLsizei>(stride), nullptr);
} else {
g_GLESFuncs.glVertexAttribIPointer(attribIndex, attrib.Size,
MG_Util::ConvertDataTypeToGLEnum(attrib.Type),
static_cast<GLsizei>(stride), nullptr);
}
}
}
StateBackendObjectRegistry<MG_State::GLState::VertexArrayObject, BackendVertexArrayObject>
g_backendVertexArrayObjects;
} // namespace VertexArrayImpl
namespace TextureImpl {
BackendTextureObject::BackendTextureObject() {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
g_GLESFuncs.glGenTextures(1, &m_backendTextureId);
if (m_backendTextureId == 0) {
MGLOG_E("Failed to generate texture object.");
MGLOG_E("ES glGetError(): %s", MG_Util::ConvertGLEnumToString(g_GLESFuncs.glGetError()).c_str());
} else {
MGLOG_D("Generated texture object with ID: %u.", m_backendTextureId);
}
}
void BackendTextureObject::Bind(GLenum target, Uint unit) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (g_activeTextureUnit != unit) {
ActivateTextureUnit(unit);
}
auto targetN = static_cast<SizeT>(MG_Util::ConvertGLEnumToTextureTarget(target));
if (this == g_boundTexturesCache[unit][targetN]) return;
g_GLESFuncs.glBindTexture(target, m_backendTextureId);
g_boundTexturesCache[unit][targetN] = this;
}
Uint BackendTextureObject::GetBackendTextureId() const {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
return m_backendTextureId;
}
void BackendTextureObject::RequireImageBindableStorage() {
if (m_imageBindableStorageRequired) {
return;
}
m_imageBindableStorageRequired = true;
m_isInitialized = false;
}
void BackendTextureObject::RecreateBackendTexture() {
if (m_backendTextureId != 0) {
g_GLESFuncs.glDeleteTextures(1, &m_backendTextureId);
for (auto& unitCache : g_boundTexturesCache) {
for (auto& boundTexture : unitCache) {
if (boundTexture == this) {
boundTexture = nullptr;
}
}
}
}
g_GLESFuncs.glGenTextures(1, &m_backendTextureId);
if (m_backendTextureId == 0) {
MGLOG_E("Failed to regenerate texture object.");
MGLOG_E("ES glGetError(): %s", MG_Util::ConvertGLEnumToString(g_GLESFuncs.glGetError()).c_str());
} else {
MGLOG_D("Regenerated texture object with ID: %u.", m_backendTextureId);
}
m_isInitialized = false;
m_backendStorageImmutable = false;
m_prevTextureInfo = {};
}
class ScopedDefaultUnpackState {
public:
ScopedDefaultUnpackState() {
g_GLESFuncs.glGetIntegerv(GL_UNPACK_ALIGNMENT, &m_prevAlignment);
g_GLESFuncs.glGetIntegerv(GL_UNPACK_ROW_LENGTH, &m_prevRowLength);
g_GLESFuncs.glGetIntegerv(GL_UNPACK_SKIP_ROWS, &m_prevSkipRows);
g_GLESFuncs.glGetIntegerv(GL_UNPACK_SKIP_PIXELS, &m_prevSkipPixels);
g_GLESFuncs.glGetIntegerv(GL_UNPACK_IMAGE_HEIGHT, &m_prevImageHeight);
g_GLESFuncs.glGetIntegerv(GL_UNPACK_SKIP_IMAGES, &m_prevSkipImages);
g_GLESFuncs.glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
g_GLESFuncs.glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
g_GLESFuncs.glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
g_GLESFuncs.glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
g_GLESFuncs.glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, 0);
g_GLESFuncs.glPixelStorei(GL_UNPACK_SKIP_IMAGES, 0);
}
~ScopedDefaultUnpackState() {
g_GLESFuncs.glPixelStorei(GL_UNPACK_ALIGNMENT, m_prevAlignment);
g_GLESFuncs.glPixelStorei(GL_UNPACK_ROW_LENGTH, m_prevRowLength);
g_GLESFuncs.glPixelStorei(GL_UNPACK_SKIP_ROWS, m_prevSkipRows);
g_GLESFuncs.glPixelStorei(GL_UNPACK_SKIP_PIXELS, m_prevSkipPixels);
g_GLESFuncs.glPixelStorei(GL_UNPACK_IMAGE_HEIGHT, m_prevImageHeight);
g_GLESFuncs.glPixelStorei(GL_UNPACK_SKIP_IMAGES, m_prevSkipImages);
}
private:
GLint m_prevAlignment = 4;
GLint m_prevRowLength = 0;
GLint m_prevSkipRows = 0;
GLint m_prevSkipPixels = 0;
GLint m_prevImageHeight = 0;
GLint m_prevSkipImages = 0;
};
static Uint GetNormFallbackComponentCount(TextureInternalFormat format) {
switch (format) {
case TextureInternalFormat::R8Snorm:
case TextureInternalFormat::R16:
case TextureInternalFormat::R16Snorm:
return 1;
case TextureInternalFormat::RG8Snorm:
case TextureInternalFormat::RG16:
case TextureInternalFormat::RG16Snorm:
return 2;
case TextureInternalFormat::RGB8Snorm:
case TextureInternalFormat::RGB16:
case TextureInternalFormat::RGB16Snorm:
return 3;
case TextureInternalFormat::RGBA8Snorm:
case TextureInternalFormat::RGBA16:
case TextureInternalFormat::RGBA16Snorm:
return 4;
default:
return 0;
}
}
static Bool IsSnormFallbackFormat(TextureInternalFormat format) {
switch (format) {
case TextureInternalFormat::R8Snorm:
case TextureInternalFormat::RG8Snorm:
case TextureInternalFormat::RGB8Snorm:
case TextureInternalFormat::RGBA8Snorm:
case TextureInternalFormat::R16Snorm:
case TextureInternalFormat::RG16Snorm:
case TextureInternalFormat::RGB16Snorm:
case TextureInternalFormat::RGBA16Snorm:
return true;
default:
return false;
}
}
static Bool IsNorm8FallbackFormat(TextureInternalFormat format) {
switch (format) {
case TextureInternalFormat::R8Snorm:
case TextureInternalFormat::RG8Snorm:
case TextureInternalFormat::RGB8Snorm:
case TextureInternalFormat::RGBA8Snorm:
return true;
default:
return false;
}
}
static const void* PrepareNormFloatFallbackUpload(TextureInternalFormat format,
const IntVec3& texelSize,
const void* data,
SizeT byteSize,
GLenum uploadType,
Vector<Float>& convertedData) {
const Uint componentCount = GetNormFallbackComponentCount(format);
if (componentCount == 0 || uploadType != GL_FLOAT || data == nullptr || byteSize == 0) {
return data;
}
const SizeT texelCount = static_cast<SizeT>(std::max(texelSize.x(), 0)) *
static_cast<SizeT>(std::max(texelSize.y(), 0)) *
static_cast<SizeT>(std::max(texelSize.z(), 0));
const SizeT componentTotal = texelCount * static_cast<SizeT>(componentCount);
const SizeT sourceComponentSize = IsNorm8FallbackFormat(format) ? sizeof(Int8) : sizeof(Uint16);
const SizeT sourceComponentTotal = byteSize / sourceComponentSize;
if (componentTotal == 0 || sourceComponentTotal == 0) {
return nullptr;
}
convertedData.assign(componentTotal, 0.0f);
const SizeT copyComponentTotal = std::min(componentTotal, sourceComponentTotal);
if (IsNorm8FallbackFormat(format)) {
const Int8* src = static_cast<const Int8*>(data);
constexpr Float invMaxSnorm8 = 1.0f / 127.0f;
for (SizeT i = 0; i < copyComponentTotal; ++i) {
convertedData[i] = std::max(static_cast<Float>(src[i]) * invMaxSnorm8, -1.0f);
}
} else if (IsSnormFallbackFormat(format)) {
const Int16* src = static_cast<const Int16*>(data);
constexpr Float invMaxSnorm16 = 1.0f / 32767.0f;
for (SizeT i = 0; i < copyComponentTotal; ++i) {
convertedData[i] = std::max(static_cast<Float>(src[i]) * invMaxSnorm16, -1.0f);
}
} else {
const Uint16* src = static_cast<const Uint16*>(data);
constexpr Float invMaxUnorm16 = 1.0f / 65535.0f;
for (SizeT i = 0; i < copyComponentTotal; ++i) {
convertedData[i] = static_cast<Float>(src[i]) * invMaxUnorm16;
}
}
return convertedData.data();
}
void BackendTextureObject::SyncMipmapsToBackend(
const SharedPtr<MG_State::GLState::ITextureObject>& stateTextureObject) {
if (!stateTextureObject) {
MGLOG_E("State texture object is null, cannot sync to backend.");
return;
}
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
MGLOG_D("Syncing texture mipmaps with backend ID %u to backend for state ID %u", m_backendTextureId,
stateTextureObject->GetExternalIndex());
GLenum target = MG_Util::ConvertTextureTargetToGLEnum(stateTextureObject->GetTarget());
auto targetInternal = stateTextureObject->GetTarget();
MGLOG_D(" Texture target for syncing is %s",
MG_Util::ConvertTextureTargetToString(targetInternal).c_str());
if (!IsSupportedTextureTarget(targetInternal)) {
MGLOG_E(" Texture target %s is not supported, skipping.",
MG_Util::ConvertTextureTargetToString(targetInternal).c_str());
return;
}
// The texture needs to be regenerated completely with glTexImage* calls if:
// 1. Not initialized
// 2. InternalFormat changed
// 3. Size changed
// 4. Mipmap levels changed
if (!stateTextureObject->IsComplete()) {
MGLOG_D("Texture object with ID: %u is not complete, skipping sync.",
stateTextureObject->GetExternalIndex());
return;
}
Bind(target);
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error: %s", func, file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
const auto baseSize = stateTextureObject->GetBaseSize();
StateTextureBasicInfo currentTextureInfo = {stateTextureObject->GetFormat(),
static_cast<SizeT>(baseSize.x()),
static_cast<SizeT>(baseSize.y()),
static_cast<SizeT>(baseSize.z()),
0,
0,
stateTextureObject->GetSamples(),
stateTextureObject->HasFixedSampleLocations()};
switch (stateTextureObject->GetStorageType()) {
case TextureStorageType::Mipmap: {
auto* textureMipmapObject =
static_cast<MG_State::GLState::TextureObjectMipmap*>(stateTextureObject.get());
const auto mipmapCount = textureMipmapObject->GetMipmapLevelCount();
currentTextureInfo.mipmapLevels = mipmapCount;
Bool needsRegeneration = !m_isInitialized || (currentTextureInfo != m_prevTextureInfo);
if (needsRegeneration && m_backendStorageImmutable) {
RecreateBackendTexture();
Bind(target);
}
const Bool canAppendMipmaps =
m_isInitialized &&
!m_imageBindableStorageRequired &&
!stateTextureObject->IsImmutable() &&
currentTextureInfo.internalFormat == m_prevTextureInfo.internalFormat &&
currentTextureInfo.width == m_prevTextureInfo.width &&
currentTextureInfo.height == m_prevTextureInfo.height &&
currentTextureInfo.depth == m_prevTextureInfo.depth &&
currentTextureInfo.bufferExternalIndex == m_prevTextureInfo.bufferExternalIndex &&
currentTextureInfo.samples == m_prevTextureInfo.samples &&
currentTextureInfo.fixedSampleLocations == m_prevTextureInfo.fixedSampleLocations &&
currentTextureInfo.mipmapLevels > m_prevTextureInfo.mipmapLevels &&
!TextureImpl::IsMultisampleTextureTarget(targetInternal);
MGLOG_D("%s: Got texture info: %dx%dx%d, mips %d, format %s", __func__, baseSize.x(), baseSize.y(),
baseSize.z(), mipmapCount,
MG_Util::ConvertTextureInternalFormatToString(textureMipmapObject->GetFormat()).c_str());
if (canAppendMipmaps) {
MGLOG_D("Texture mip count increased for backend ID %u, appending levels %zu..%zu",
m_backendTextureId, m_prevTextureInfo.mipmapLevels, mipmapCount - 1);
GLenum glInternalFormat, glType, glFormat;
TextureImpl::GenerateTextureFormatInfo(textureMipmapObject->GetFormat(), &glInternalFormat,
&glFormat, &glType, targetInternal);
const auto& uploadTargets = textureMipmapObject->GetUploadTargets();
ScopedDefaultUnpackState unpackState;
for (auto& uploadTarget : uploadTargets) {
for (SizeT level = m_prevTextureInfo.mipmapLevels; level < mipmapCount; ++level) {
auto levelTexelSize = textureMipmapObject->GetMipmapTexelSize(uploadTarget, level);
auto levelByteSize = textureMipmapObject->GetMipmapByteSize(uploadTarget, level);
bool levelDirty = textureMipmapObject->IsStorageDirty(uploadTarget, level);
auto glUploadTarget = MG_Util::ConvertTextureUploadTargetToGLEnum(uploadTarget);
auto* pData = (levelDirty && levelByteSize != 0)
? textureMipmapObject->MapMipmapData(uploadTarget, level)
: nullptr;
Vector<Float> convertedUploadData;
const void* uploadData = PrepareNormFloatFallbackUpload(
textureMipmapObject->GetFormat(), levelTexelSize, pData, levelByteSize, glType,
convertedUploadData);
DebugImpl::ErrorLopper::Clear();
g_GLESFuncs.glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
switch (stateTextureObject->GetTarget()) {
case TextureTarget::Texture2D:
case TextureTarget::TextureCubeMap:
g_GLESFuncs.glTexImage2D(
glUploadTarget, static_cast<GLint>(level), (GLint)glInternalFormat,
static_cast<GLsizei>(levelTexelSize.x()), static_cast<GLsizei>(levelTexelSize.y()),
0, glFormat, glType, uploadData);
break;
case TextureTarget::Texture3D:
g_GLESFuncs.glTexImage3D(
glUploadTarget, static_cast<GLint>(level), (GLint)glInternalFormat,
static_cast<GLsizei>(levelTexelSize.x()), static_cast<GLsizei>(levelTexelSize.y()),
static_cast<GLsizei>(levelTexelSize.z()), 0, glFormat, glType, uploadData);
break;
default:
MGLOG_E("Unhandled texture target %s",
MG_Util::ConvertTextureTargetToString(stateTextureObject->GetTarget()).c_str());
break;
}
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__,
glUploadTarget, glInternalFormat, glFormat, glType,
pData](GLenum err) {
MGLOG_D("%s(%s:%d) ES error: %s. glTexImage*: target=%s, internalformat=%s, format=%s, "
"type=%s, pixels=%p",
func, file, line, MG_Util::ConvertGLEnumToString(err).c_str(),
MG_Util::ConvertGLEnumToString(glUploadTarget).c_str(),
MG_Util::ConvertGLEnumToString(glInternalFormat).c_str(),
MG_Util::ConvertGLEnumToString(glFormat).c_str(),
MG_Util::ConvertGLEnumToString(glType).c_str(), pData);
});
textureMipmapObject->MarkStorageDirty(uploadTarget, level, false);
}
}
needsRegeneration = false;
}
if (needsRegeneration) {
MGLOG_D("Texture state changed significantly or not initialized, regenerating texture with ID: %u",
m_backendTextureId);
// Regenerate all mipmap levels
GLenum glInternalFormat, glType, glFormat;
TextureImpl::GenerateTextureFormatInfo(textureMipmapObject->GetFormat(), &glInternalFormat,
&glFormat, &glType, targetInternal);
const auto& uploadTargets = textureMipmapObject->GetUploadTargets();
if (TextureImpl::IsMultisampleTextureTarget(targetInternal)) {
DebugImpl::ErrorLopper::Clear();
g_GLESFuncs.glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
switch (targetInternal) {
case TextureTarget::Texture2DMultisample:
g_GLESFuncs.glTexStorage2DMultisample(
target, static_cast<GLsizei>(stateTextureObject->GetSamples()), glInternalFormat,
static_cast<GLsizei>(baseSize.x()), static_cast<GLsizei>(baseSize.y()),
stateTextureObject->HasFixedSampleLocations() ? GL_TRUE : GL_FALSE);
break;
case TextureTarget::Texture2DMultisampleArray:
g_GLESFuncs.glTexStorage3DMultisample(
target, static_cast<GLsizei>(stateTextureObject->GetSamples()), glInternalFormat,
static_cast<GLsizei>(baseSize.x()), static_cast<GLsizei>(baseSize.y()),
static_cast<GLsizei>(baseSize.z()),
stateTextureObject->HasFixedSampleLocations() ? GL_TRUE : GL_FALSE);
break;
default:
MOBILEGL_ASSERT(false, "Unexpected multisample target: %d", static_cast<Int>(targetInternal));
break;
}
m_backendStorageImmutable = true;
for (const auto& uploadTarget : uploadTargets) {
for (SizeT level = 0; level < mipmapCount; ++level) {
textureMipmapObject->MarkStorageDirty(uploadTarget, level, false);
}
}
} else if (stateTextureObject->IsImmutable() || m_imageBindableStorageRequired) {
DebugImpl::ErrorLopper::Clear();
g_GLESFuncs.glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
switch (targetInternal) {
case TextureTarget::Texture2D:
case TextureTarget::TextureCubeMap:
g_GLESFuncs.glTexStorage2D(target, static_cast<GLsizei>(mipmapCount), glInternalFormat,
static_cast<GLsizei>(baseSize.x()),
static_cast<GLsizei>(baseSize.y()));
break;
case TextureTarget::Texture3D:
g_GLESFuncs.glTexStorage3D(target, static_cast<GLsizei>(mipmapCount), glInternalFormat,
static_cast<GLsizei>(baseSize.x()),
static_cast<GLsizei>(baseSize.y()),
static_cast<GLsizei>(baseSize.z()));
break;
default:
MGLOG_E("Unhandled immutable texture target %s",
MG_Util::ConvertTextureTargetToString(targetInternal).c_str());
break;
}
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__, target,
glInternalFormat](GLenum err) {
MGLOG_D("%s(%s:%d) ES error: %s. glTexStorage*: target=%s, internalformat=%s", func,
file, line, MG_Util::ConvertGLEnumToString(err).c_str(),
MG_Util::ConvertGLEnumToString(target).c_str(),
MG_Util::ConvertGLEnumToString(glInternalFormat).c_str());
});
m_backendStorageImmutable = true;
ScopedDefaultUnpackState unpackState;
for (auto& uploadTarget : uploadTargets) {
for (SizeT level = 0; level < mipmapCount; ++level) {
auto levelByteSize = textureMipmapObject->GetMipmapByteSize(uploadTarget, level);
const bool levelDirty = textureMipmapObject->IsStorageDirty(uploadTarget, level);
if (levelDirty && levelByteSize != 0) {
auto levelTexelSize =
textureMipmapObject->GetMipmapTexelSize(uploadTarget, level);
auto glUploadTarget = MG_Util::ConvertTextureUploadTargetToGLEnum(uploadTarget);
auto* pData = textureMipmapObject->MapMipmapData(uploadTarget, level);
Vector<Float> convertedUploadData;
const void* uploadData = PrepareNormFloatFallbackUpload(
textureMipmapObject->GetFormat(), levelTexelSize, pData, levelByteSize, glType,
convertedUploadData);
DebugImpl::ErrorLopper::Clear();
g_GLESFuncs.glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
switch (targetInternal) {
case TextureTarget::Texture2D:
case TextureTarget::TextureCubeMap:
g_GLESFuncs.glTexSubImage2D(
glUploadTarget, static_cast<GLint>(level), 0, 0,
static_cast<GLsizei>(levelTexelSize.x()),
static_cast<GLsizei>(levelTexelSize.y()), glFormat, glType, uploadData);
break;
case TextureTarget::Texture3D:
g_GLESFuncs.glTexSubImage3D(
glUploadTarget, static_cast<GLint>(level), 0, 0, 0,
static_cast<GLsizei>(levelTexelSize.x()),
static_cast<GLsizei>(levelTexelSize.y()),
static_cast<GLsizei>(levelTexelSize.z()), glFormat, glType, uploadData);
break;
default:
break;
}
DebugImpl::ErrorLopper::Loop(
[file = __FILE__, line = __LINE__, func = __func__, glUploadTarget,
glFormat, glType, pData](GLenum err) {
MGLOG_D("%s(%s:%d) ES error: %s. glTexSubImage*: target=%s, format=%s, "
"type=%s, pixels=%p",
func, file, line, MG_Util::ConvertGLEnumToString(err).c_str(),
MG_Util::ConvertGLEnumToString(glUploadTarget).c_str(),
MG_Util::ConvertGLEnumToString(glFormat).c_str(),
MG_Util::ConvertGLEnumToString(glType).c_str(), pData);
});
}
textureMipmapObject->MarkStorageDirty(uploadTarget, level, false);
}
}
} else {
m_backendStorageImmutable = false;
ScopedDefaultUnpackState unpackState;
for (auto& uploadTarget : uploadTargets) {
for (SizeT level = 0; level < mipmapCount; ++level) {
auto levelTexelSize = textureMipmapObject->GetMipmapTexelSize(uploadTarget, level);
auto levelByteSize = textureMipmapObject->GetMipmapByteSize(uploadTarget, level);
bool levelDirty = textureMipmapObject->IsStorageDirty(uploadTarget, level);
auto glUploadTarget = MG_Util::ConvertTextureUploadTargetToGLEnum(uploadTarget);
auto* pData = (levelDirty && levelByteSize != 0)
? textureMipmapObject->MapMipmapData(uploadTarget, level)
: nullptr;
Vector<Float> convertedUploadData;
const void* uploadData = PrepareNormFloatFallbackUpload(
textureMipmapObject->GetFormat(), levelTexelSize, pData, levelByteSize, glType,
convertedUploadData);
MGLOG_D("%s: target: %s: syncing mip %d: %dx%dx%d, byteSize = %d, pData = %p, "
"levelDirty = %s",
__func__, MG_Util::ConvertTextureUploadTargetToString(uploadTarget).c_str(),
level, levelTexelSize.x(), levelTexelSize.y(), levelTexelSize.z(),
levelByteSize, pData, levelDirty ? "true" : "false");
DebugImpl::ErrorLopper::Clear();
g_GLESFuncs.glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
auto textureTarget = stateTextureObject->GetTarget();
// TODO: handle more texture types
switch (textureTarget) {
case TextureTarget::Texture2D:
case TextureTarget::TextureCubeMap: {
g_GLESFuncs.glTexImage2D(
glUploadTarget, static_cast<GLint>(level), (GLint)glInternalFormat,
static_cast<GLsizei>(levelTexelSize.x()),
static_cast<GLsizei>(levelTexelSize.y()), 0, glFormat, glType, uploadData);
break;
}
case TextureTarget::Texture3D: {
g_GLESFuncs.glTexImage3D(
glUploadTarget, static_cast<GLint>(level), (GLint)glInternalFormat,
static_cast<GLsizei>(levelTexelSize.x()),
static_cast<GLsizei>(levelTexelSize.y()),
static_cast<GLsizei>(levelTexelSize.z()), 0, glFormat, glType, uploadData);
break;
}
default: {
MGLOG_E("Unhandled texture target %s",
MG_Util::ConvertTextureTargetToString(textureTarget).c_str());
}
}
DebugImpl::ErrorLopper::Loop(
[file = __FILE__, line = __LINE__, func = __func__, glUploadTarget,
glInternalFormat, glFormat, glType, pData](GLenum err) {
MGLOG_D("%s(%s:%d) ES error: %s. glTexImage*: target=%s, internalformat=%s, "
"format=%s, type=%s, pixels=%p",
func, file, line, MG_Util::ConvertGLEnumToString(err).c_str(),
MG_Util::ConvertGLEnumToString(glUploadTarget).c_str(),
MG_Util::ConvertGLEnumToString(glInternalFormat).c_str(),
MG_Util::ConvertGLEnumToString(glFormat).c_str(),
MG_Util::ConvertGLEnumToString(glType).c_str(), pData);
});
MGLOG_D("Regenerated mipmap level %d for texture with ID: %u", level,
m_backendTextureId);
textureMipmapObject->MarkStorageDirty(uploadTarget, level, false);
}
}
}
m_isInitialized = true;
}
{ // Update all dirty mipmap levels
if (TextureImpl::IsMultisampleTextureTarget(targetInternal)) {
const auto& uploadTargets = textureMipmapObject->GetUploadTargets();
for (const auto& uploadTarget : uploadTargets) {
for (SizeT level = 0; level < mipmapCount; ++level) {
if (textureMipmapObject->IsStorageDirty(uploadTarget, level)) {
textureMipmapObject->MarkStorageDirty(uploadTarget, level, false);
}
}
}
break;
}
const auto mipmapCount = textureMipmapObject->GetMipmapLevelCount();
GLenum glInternalFormat, glType, glFormat;
TextureImpl::GenerateTextureFormatInfo(textureMipmapObject->GetFormat(), &glInternalFormat,
&glFormat, &glType, targetInternal);
const auto& uploadTargets = textureMipmapObject->GetUploadTargets();
ScopedDefaultUnpackState unpackState;
for (auto& uploadTarget : uploadTargets) {
for (SizeT level = 0; level < mipmapCount; ++level) {
if (!textureMipmapObject->IsStorageDirty(uploadTarget, level)) {
continue;
}
auto byteSize = textureMipmapObject->GetMipmapByteSize(uploadTarget, level);
if (byteSize == 0) {
MGLOG_W("Mipmap level %d has no data, skipping update.", level);
continue;
}
if (level > 0)
MGLOG_D("%s: Updating dirty mip %d for texture ID %u, size: %dx%d, "
"byteSize: %d",
__func__, level, m_backendTextureId,
textureMipmapObject->GetMipmapTexelSize(uploadTarget, level).x(),
textureMipmapObject->GetMipmapTexelSize(uploadTarget, level).y(), byteSize);
auto glUploadTarget = MG_Util::ConvertTextureUploadTargetToGLEnum(uploadTarget);
g_GLESFuncs.glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
DebugImpl::ErrorLopper::Loop(
[file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error: %s", func, file, line,
MG_Util::ConvertGLEnumToString(err).c_str());
});
auto texelSize = textureMipmapObject->GetMipmapTexelSize(uploadTarget, level);
const void* mipData = textureMipmapObject->MapMipmapData(uploadTarget, level);
Vector<Float> convertedUploadData;
const void* uploadData = PrepareNormFloatFallbackUpload(
textureMipmapObject->GetFormat(), texelSize, mipData, byteSize, glType,
convertedUploadData);
switch (stateTextureObject->GetTarget()) {
case TextureTarget::Texture2D:
case TextureTarget::TextureCubeMap:
g_GLESFuncs.glTexSubImage2D(glUploadTarget, static_cast<GLint>(level), 0, 0,
static_cast<GLsizei>(texelSize.x()),
static_cast<GLsizei>(texelSize.y()), glFormat, glType,
uploadData);
break;
case TextureTarget::Texture3D:
g_GLESFuncs.glTexSubImage3D(glUploadTarget, static_cast<GLint>(level), 0, 0, 0,
static_cast<GLsizei>(texelSize.x()),
static_cast<GLsizei>(texelSize.y()),
static_cast<GLsizei>(texelSize.z()), glFormat, glType,
uploadData);
break;
default:
MGLOG_E("Unhandled texture target %s",
MG_Util::ConvertTextureTargetToString(stateTextureObject->GetTarget()).c_str());
break;
}
textureMipmapObject->MarkStorageDirty(uploadTarget, level, false);
}
}
}
break;
}
case TextureStorageType::Buffer: {
auto* textureBufferObject =
static_cast<MG_State::GLState::TextureObjectBuffer*>(stateTextureObject.get());
auto& slot = textureBufferObject->GetBufferBindingSlot();
auto& buffer = slot.GetBoundObject();
if (!buffer) {
MGLOG_D("Texture buffer object with ID: %u has no bound buffer, skipping sync.",
stateTextureObject->GetExternalIndex());
return;
}
auto bufferIndex = buffer->GetExternalIndex();
currentTextureInfo.bufferExternalIndex = bufferIndex;
Bool needsRegeneration = !m_isInitialized || (currentTextureInfo != m_prevTextureInfo);
// Need to sync texture buffer if not synced yet
auto* backendBufferResource = BufferImpl::EnsureBufferResource(buffer);
if (!backendBufferResource || backendBufferResource->id == 0) {
MGLOG_E("Failed to sync backing buffer for texture buffer with ID: %u",
stateTextureObject->GetExternalIndex());
return;
}
// Bind buffer to texture
auto backendId = backendBufferResource->id;
GLenum glInternalFormat, glType, glFormat;
TextureImpl::GenerateTextureFormatInfo(textureBufferObject->GetFormat(), &glInternalFormat, &glFormat,
&glType, TextureTarget::TextureBuffer);
if (needsRegeneration) {
MGLOG_D("Texture state changed significantly or not initialized, regenerating texture buffer with "
"ID: %u, buffer ID: %u, buffer size: %zu, format: %s",
m_backendTextureId, backendId, buffer->GetSize(),
MG_Util::ConvertGLEnumToString(glInternalFormat).c_str());
g_GLESFuncs.glTexBuffer(GL_TEXTURE_BUFFER, glInternalFormat, backendId);
DebugImpl::ErrorLopper::Loop(
[file = __FILE__, line = __LINE__, func = __func__, glInternalFormat, backendId](GLenum err) {
MGLOG_D("%s(%s:%d) glTexBuffer(format=%s, buffer=%u) ES error: %s",
func, file, line, MG_Util::ConvertGLEnumToString(glInternalFormat).c_str(),
backendId, MG_Util::ConvertGLEnumToString(err).c_str());
});
}
break;
}
default:
THROW_UNIMPL_EXCEPTION;
}
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error: %s", func, file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
m_prevTextureInfo = currentTextureInfo;
}
void BackendTextureObject::SyncBuiltinSamplerToBackend(
const SharedPtr<MG_State::GLState::ITextureObject>& stateTextureObject) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (!stateTextureObject) {
MGLOG_E("State texture object is null, cannot sync to backend.");
return;
}
auto* samplerObject = stateTextureObject->GetSamplerObject().get();
Uint currentSamplerVersion = samplerObject->GetVersion();
if (m_syncedSamplerVersion == currentSamplerVersion) {
MGLOG_D("Sampler parameters have not changed for texture ID: %u, skipping sync.", m_backendTextureId);
return;
}
m_syncedSamplerVersion = currentSamplerVersion;
MGLOG_D("Syncing texture built-in sampler with backend ID %u to backend for state ID %u",
m_backendTextureId, stateTextureObject->GetExternalIndex());
GLenum target = MG_Util::ConvertTextureTargetToGLEnum(stateTextureObject->GetTarget());
auto targetInternal = stateTextureObject->GetTarget();
MGLOG_D(" Texture target for syncing is %s",
MG_Util::ConvertTextureTargetToString(targetInternal).c_str());
if (!IsSupportedTextureTarget(targetInternal)) {
MGLOG_E(" Texture target %s is not supported, skipping.",
MG_Util::ConvertTextureTargetToString(targetInternal).c_str());
return;
}
const auto& samplerParams = samplerObject->GetAllSamplerParameters();
if (TextureImpl::IsMultisampleTextureTarget(targetInternal)) {
m_cacheSamplerParameters = samplerParams;
return;
}
Bind(target);
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error: %s", func, file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
// Update built-in sampler parameters
MGLOG_D("Updating sampler parameters for texture with ID: %u", m_backendTextureId);
#define SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(internalName, glName, type) \
if (m_cacheSamplerParameters.internalName != samplerParams.internalName) { \
g_GLESFuncs.glTexParameteri(target, glName, \
MG_Util::ConvertSampler##type##ToGLEnum(samplerParams.internalName)); \
m_cacheSamplerParameters.internalName = samplerParams.internalName; \
DebugImpl::ErrorLopper::Loop( \
[file = __FILE__, line = __LINE__, func = __func__, \
t = MG_Util::ConvertSampler##type##ToGLEnum(samplerParams.internalName)](GLenum err) { \
MGLOG_D("%s(%s:%d) ES error %s, GL_TEXTURE_MIN_FILTER = %s", func, file, line, \
MG_Util::ConvertGLEnumToString(err).c_str(), MG_Util::ConvertGLEnumToString(t).c_str()); \
}); \
}
if (m_cacheSamplerParameters.minFilter != samplerParams.minFilter ||
m_cacheSamplerParameters.mipmapMode != samplerParams.mipmapMode) {
g_GLESFuncs.glTexParameteri(target, GL_TEXTURE_MIN_FILTER,
(GLint)ResolveBackendMinFilter(samplerParams, IsAngleLlvmpipeRenderer()));
m_cacheSamplerParameters.minFilter = samplerParams.minFilter;
m_cacheSamplerParameters.mipmapMode = samplerParams.mipmapMode;
}
if (m_cacheSamplerParameters.magFilter != samplerParams.magFilter) {
g_GLESFuncs.glTexParameteri(
target, GL_TEXTURE_MAG_FILTER,
(GLint)MG_Util::ConvertSamplerFilterModeToGLEnum(samplerParams.magFilter, SamplerMipmapMode::None));
m_cacheSamplerParameters.magFilter = samplerParams.magFilter;
}
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error %s", func, file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(wrapS, GL_TEXTURE_WRAP_S, WrapMode)
SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(wrapT, GL_TEXTURE_WRAP_T, WrapMode)
if (SupportsWrapR(targetInternal)) {
SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(wrapR, GL_TEXTURE_WRAP_R, WrapMode)
} else {
m_cacheSamplerParameters.wrapR = samplerParams.wrapR;
}
SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(compareFunc, GL_TEXTURE_COMPARE_FUNC, CompareFunc)
SYNC_TEX_SAMPLER_PARAM_IF_CHANGED(compareMode, GL_TEXTURE_COMPARE_MODE, CompareMode)
if (m_cacheSamplerParameters.minLod != samplerParams.minLod) {
g_GLESFuncs.glTexParameterf(target, GL_TEXTURE_MIN_LOD, samplerParams.minLod);
m_cacheSamplerParameters.minLod = samplerParams.minLod;
}
if (m_cacheSamplerParameters.maxLod != samplerParams.maxLod) {
g_GLESFuncs.glTexParameterf(target, GL_TEXTURE_MAX_LOD, samplerParams.maxLod);
m_cacheSamplerParameters.maxLod = samplerParams.maxLod;
}
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error %s", func, file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
#undef SYNC_TEX_SAMPLER_PARAM_IF_CHANGED
}
void BackendTextureObject::SyncTextureParamsToBackend(
const SharedPtr<MG_State::GLState::ITextureObject>& stateTextureObject) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (!stateTextureObject) {
MGLOG_E("State texture object is null, cannot sync to backend.");
return;
}
Uint16 currentTextureParamsVersion = stateTextureObject->GetTextureParamsVersion();
if (m_syncedTextureParamsVersion == currentTextureParamsVersion) {
MGLOG_D("Texture parameters have not changed for texture ID: %u, skipping sync.", m_backendTextureId);
return;
}
m_syncedTextureParamsVersion = currentTextureParamsVersion;
MGLOG_D("Syncing texture params with backend ID %u to backend for state ID %u", m_backendTextureId,
stateTextureObject->GetExternalIndex());
GLenum target = MG_Util::ConvertTextureTargetToGLEnum(stateTextureObject->GetTarget());
auto targetInternal = stateTextureObject->GetTarget();
MGLOG_D(" Texture target for syncing is %s",
MG_Util::ConvertTextureTargetToString(targetInternal).c_str());
if (!IsSupportedTextureTarget(targetInternal)) {
MGLOG_E(" Texture target %s is not supported, skipping.",
MG_Util::ConvertTextureTargetToString(targetInternal).c_str());
return;
}
if (TextureImpl::IsMultisampleTextureTarget(targetInternal)) {
m_cacheLodRange = stateTextureObject->GetLevelRange();
m_cacheSwizzleParams = stateTextureObject->GetAllSwizzleParams();
m_cacheBorderColor = stateTextureObject->GetBorderColor();
return;
}
Bind(target);
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error: %s", func, file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
// Update texture parameters
MGLOG_D("Updating texture parameters for texture with ID: %u", m_backendTextureId);
const auto& levelRange = stateTextureObject->GetLevelRange();
if (m_cacheLodRange.x() != levelRange.x()) {
g_GLESFuncs.glTexParameteri(target, GL_TEXTURE_BASE_LEVEL, static_cast<GLint>(levelRange.x()));
m_cacheLodRange.x() = levelRange.x();
}
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error %s", func, file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
if (m_cacheLodRange.y() != levelRange.y()) {
g_GLESFuncs.glTexParameteri(target, GL_TEXTURE_MAX_LEVEL, static_cast<GLint>(levelRange.y()));
m_cacheLodRange.y() = levelRange.y();
}
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error %s", func, file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
const auto& swizzleParams = stateTextureObject->GetAllSwizzleParams();
if (swizzleParams != m_cacheSwizzleParams) {
#define SYNC_TEX_SWIZZLE_PARAM_IF_CHANGED(func, glEnum) \
if (m_cacheSwizzleParams.func != swizzleParams.func) { \
g_GLESFuncs.glTexParameteri(target, glEnum, MG_Util::ConvertTextureSwizzleParamToGLEnum(swizzleParams.func)); \
m_cacheSwizzleParams.func = swizzleParams.func; \
}
SYNC_TEX_SWIZZLE_PARAM_IF_CHANGED(r(), GL_TEXTURE_SWIZZLE_R);
SYNC_TEX_SWIZZLE_PARAM_IF_CHANGED(g(), GL_TEXTURE_SWIZZLE_G);
SYNC_TEX_SWIZZLE_PARAM_IF_CHANGED(b(), GL_TEXTURE_SWIZZLE_B);
SYNC_TEX_SWIZZLE_PARAM_IF_CHANGED(a(), GL_TEXTURE_SWIZZLE_A);
#undef SYNC_TEX_SWIZZLE_PARAM_IF_CHANGED
m_cacheSwizzleParams = swizzleParams;
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error %s", func, file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
}
if (m_cacheBorderColor != stateTextureObject->GetBorderColor()) {
const auto& borderColor = stateTextureObject->GetBorderColor();
GLfloat borderColorArray[4] = {borderColor.x(), borderColor.y(), borderColor.z(), borderColor.w()};
g_GLESFuncs.glTexParameterfv(target, GL_TEXTURE_BORDER_COLOR, borderColorArray);
m_cacheBorderColor = borderColor;
DebugImpl::ErrorLopper::Loop([file = __FILE__, line = __LINE__, func = __func__](GLenum err) {
MGLOG_D("%s(%s:%d) ES error %s", func, file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
}
}
void ActivateTextureUnit(Uint unit) {
if (unit == g_activeTextureUnit) {
return;
}
g_GLESFuncs.glActiveTexture(GL_TEXTURE0 + unit);
g_activeTextureUnit = unit;
}
void UnbindTexture(Uint unit, GLenum target) { // Active unit will be modified
if (unit != g_activeTextureUnit) {
ActivateTextureUnit(unit);
}
auto targetN = static_cast<SizeT>(MG_Util::ConvertGLEnumToTextureTarget(target));
if (g_boundTexturesCache[unit][targetN] == nullptr) return;
g_GLESFuncs.glBindTexture(target, 0);
g_boundTexturesCache[unit][targetN] = nullptr;
}
Uint g_activeTextureUnit = 0;
Array<Array<BackendTextureObject*, (SizeT)TextureTarget::TextureTargetCount>,
MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS>
g_boundTexturesCache;
StateBackendObjectRegistry<MG_State::GLState::ITextureObject, BackendTextureObject> g_backendTextureObjects;
} // namespace TextureImpl
namespace FramebufferImpl {
BackendFramebufferObject::BackendFramebufferObject() {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
g_GLESFuncs.glGenFramebuffers(1, &m_backendFBOId);
if (m_backendFBOId == 0) {
MGLOG_E("Failed to generate framebuffer object.");
MGLOG_E("ES glGetError(): %s", MG_Util::ConvertGLEnumToString(g_GLESFuncs.glGetError()).c_str());
} else {
MGLOG_D("Generated framebuffer object with ID: %u.", m_backendFBOId);
}
}
void BackendFramebufferObject::Bind(FramebufferTarget target) const {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (target == FramebufferTarget::Read)
g_GLESFuncs.glBindFramebuffer(GL_READ_FRAMEBUFFER, m_backendFBOId);
else
g_GLESFuncs.glBindFramebuffer(GL_DRAW_FRAMEBUFFER, m_backendFBOId);
}
void BackendFramebufferObject::InvalidateSyncedState() {
std::fill(std::begin(m_frontendDrawBuffers), std::end(m_frontendDrawBuffers),
FramebufferAttachmentType::Unknown);
std::fill(std::begin(m_backendDrawBuffers), std::end(m_backendDrawBuffers), GL_NONE);
m_frontendReadBuffer = FramebufferAttachmentType::Unknown;
m_backendReadBuffer = GL_NONE;
std::fill(m_syncedFrontendAttachmentVersions.begin(), m_syncedFrontendAttachmentVersions.end(),
static_cast<Uint16>(~0u));
}
static Bool SyncAttachmentObject(GLenum glFBOTarget,
const MG_State::GLState::FramebufferAttachmentObject& attachmentObject,
GLenum glBackendAttachment) {
if (attachmentObject.IsTexture()) {
const auto& textureObject = attachmentObject.GetTexture();
SharedPtr<TextureImpl::BackendTextureObject> backendTextureObject;
const auto& backendTextureIt = TextureImpl::g_backendTextureObjects.find(textureObject.get());
if (backendTextureIt == TextureImpl::g_backendTextureObjects.end()) {
auto& backendTextureSlot = TextureImpl::g_backendTextureObjects.GetOrCreate(textureObject);
if (!backendTextureSlot) {
backendTextureSlot = MakeShared<TextureImpl::BackendTextureObject>();
}
backendTextureObject = backendTextureSlot;
} else {
backendTextureObject = backendTextureIt->second;
}
if (!backendTextureObject) {
MGLOG_E("%s: No backend texture found for FBO attachment, cannot bind texture.", __func__);
return false;
}
backendTextureObject->SyncMipmapsToBackend(textureObject);
if (attachmentObject.IsLayered()) {
g_GLESFuncs.glFramebufferTexture(glFBOTarget, glBackendAttachment,
backendTextureObject->GetBackendTextureId(),
static_cast<GLint>(attachmentObject.GetTextureLevel()));
} else {
auto glTextureTarget =
MG_Util::ConvertTextureUploadTargetToGLEnum(attachmentObject.GetTextureUploadTarget());
if (glTextureTarget == GL_UNKNOWN_MGL) {
glTextureTarget = MG_Util::ConvertTextureTargetToGLEnum(textureObject->GetTarget());
}
backendTextureObject->Bind(glTextureTarget);
g_GLESFuncs.glFramebufferTexture2D(glFBOTarget, glBackendAttachment, glTextureTarget,
backendTextureObject->GetBackendTextureId(),
static_cast<GLint>(attachmentObject.GetTextureLevel()));
}
} else if (attachmentObject.IsRenderbuffer()) {
const auto& renderbufferObject = attachmentObject.GetRenderbuffer();
const auto& backendRenderbufferIt =
RenderbufferImpl::g_backendRenderbufferObjects.find(renderbufferObject.get());
SharedPtr<RenderbufferImpl::BackendRenderbufferObject> backendRenderbufferObject;
if (backendRenderbufferIt == RenderbufferImpl::g_backendRenderbufferObjects.end()) {
auto& backendRenderbufferSlot =
RenderbufferImpl::g_backendRenderbufferObjects.GetOrCreate(renderbufferObject);
if (!backendRenderbufferSlot) {
backendRenderbufferSlot = MakeShared<RenderbufferImpl::BackendRenderbufferObject>();
}
backendRenderbufferObject = backendRenderbufferSlot;
} else {
backendRenderbufferObject = backendRenderbufferIt->second;
}
backendRenderbufferObject->SyncToBackend(renderbufferObject);
backendRenderbufferObject->Bind();
g_GLESFuncs.glFramebufferRenderbuffer(glFBOTarget, glBackendAttachment, GL_RENDERBUFFER,
backendRenderbufferObject->GetBackendRenderbufferId());
}
return true;
}
static Bool IsSnormFormat(TextureInternalFormat format) {
switch (format) {
case TextureInternalFormat::R8Snorm:
case TextureInternalFormat::RG8Snorm:
case TextureInternalFormat::RGB8Snorm:
case TextureInternalFormat::RGBA8Snorm:
case TextureInternalFormat::R16Snorm:
case TextureInternalFormat::RG16Snorm:
case TextureInternalFormat::RGB16Snorm:
case TextureInternalFormat::RGBA16Snorm:
return true;
default:
return false;
}
}
static Bool IsUnormFormat(TextureInternalFormat format) {
switch (format) {
case TextureInternalFormat::R16:
case TextureInternalFormat::RG16:
case TextureInternalFormat::RGB16:
case TextureInternalFormat::RGBA16:
return true;
default:
return false;
}
}
static Bool IsSnormFallbackAttachment(
const MG_State::GLState::FramebufferAttachmentObject& attachmentObject) {
if (attachmentObject.IsTexture()) {
const auto& textureObject = attachmentObject.GetTexture();
return textureObject && IsSnormFormat(textureObject->GetFormat()) &&
TextureImpl::ShouldUseCaveatTextureFormat(textureObject->GetFormat(), textureObject->GetTarget());
}
if (attachmentObject.IsRenderbuffer()) {
const auto& renderbufferObject = attachmentObject.GetRenderbuffer();
return renderbufferObject &&
IsSnormFormat(renderbufferObject->GetInternalFormat()) &&
TextureImpl::ShouldUseCaveatRenderbufferFormat(renderbufferObject->GetInternalFormat());
}
return false;
}
static Bool IsUnormFallbackAttachment(
const MG_State::GLState::FramebufferAttachmentObject& attachmentObject) {
if (attachmentObject.IsTexture()) {
const auto& textureObject = attachmentObject.GetTexture();
return textureObject && IsUnormFormat(textureObject->GetFormat()) &&
TextureImpl::ShouldUseCaveatTextureFormat(textureObject->GetFormat(), textureObject->GetTarget());
}
if (attachmentObject.IsRenderbuffer()) {
const auto& renderbufferObject = attachmentObject.GetRenderbuffer();
return renderbufferObject &&
IsUnormFormat(renderbufferObject->GetInternalFormat()) &&
TextureImpl::ShouldUseCaveatRenderbufferFormat(renderbufferObject->GetInternalFormat());
}
return false;
}
void BackendFramebufferObject::SyncToBackend(
const SharedPtr<MG_State::GLState::FramebufferObject>& stateFBOObject, FramebufferTarget asTarget) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (!stateFBOObject) {
MGLOG_E("State FBO object is null, cannot sync to backend.");
return;
}
MGLOG_D("Syncing FBO with backend ID %u to backend for state ID %u, as %s FBO", m_backendFBOId,
stateFBOObject->GetExternalIndex(), (asTarget == FramebufferTarget::Draw ? "DRAW" : "READ"));
GLenum glFBOTarget = MG_Util::ConvertFramebufferTargetToGLEnum(asTarget);
Bind(asTarget);
// -------------------- Connect attachments (set buffers) -----------------------
// 1. Remap draw buffers
auto& stateDrawBuffers = stateFBOObject->GetDrawBuffers();
Bool drawBufferClean = false;
if (memcmp(m_frontendDrawBuffers, stateDrawBuffers.data(),
FramebufferObject::MAX_DRAW_BUFFERS * sizeof(FramebufferAttachmentType)) == 0) {
drawBufferClean = true;
}
if (!drawBufferClean) {
memcpy(m_frontendDrawBuffers, stateDrawBuffers.data(),
FramebufferObject::MAX_DRAW_BUFFERS * sizeof(FramebufferAttachmentType));
std::fill(m_backendDrawBuffers, m_backendDrawBuffers + FramebufferObject::MAX_DRAW_BUFFERS, GL_NONE);
int nEffectiveBuffers = 0;
for (GLint i = 0; i < FramebufferObject::MAX_DRAW_BUFFERS; ++i) {
auto& frontendBuf = stateDrawBuffers[i];
if (frontendBuf == FramebufferAttachmentType::None) {
m_backendDrawBuffers[i] = GL_NONE;
continue;
}
// Create compacted mapping
if (frontendBuf == FramebufferAttachmentType::FrontLeft ||
frontendBuf == FramebufferAttachmentType::FrontRight ||
frontendBuf == FramebufferAttachmentType::BackLeft ||
frontendBuf == FramebufferAttachmentType::BackRight) {
MGLOG_D("%s: frontend buf token found for default fbo, shouldn't remap", __func__);
m_backendDrawBuffers[i] = MG_Util::ConvertFramebufferAttachmentTypeToGLEnum(frontendBuf);
} else {
m_backendDrawBuffers[i] = GL_COLOR_ATTACHMENT0 + i;
}
nEffectiveBuffers = i + 1;
}
g_GLESFuncs.glDrawBuffers(nEffectiveBuffers, m_backendDrawBuffers);
}
if (asTarget == FramebufferTarget::Draw) {
Uint32 snormClampOutputMask = 0;
Uint32 unormClampOutputMask = 0;
for (Uint i = 0; i < FramebufferObject::MAX_DRAW_BUFFERS && i < 32; ++i) {
const auto frontendBuf = stateDrawBuffers[i];
if (frontendBuf < FramebufferAttachmentType::Color0 ||
frontendBuf > FramebufferAttachmentType::Color31) {
continue;
}
const auto& attachmentObject = stateFBOObject->GetAttachment(frontendBuf);
if (IsSnormFallbackAttachment(attachmentObject)) {
snormClampOutputMask |= (1u << i);
} else if (IsUnormFallbackAttachment(attachmentObject)) {
unormClampOutputMask |= (1u << i);
}
}
PrgramImpl::g_snormFallbackClampOutputMask = snormClampOutputMask;
PrgramImpl::g_unormFallbackClampOutputMask = unormClampOutputMask;
}
// 2. Remap read buffer
auto frontendReadBuf = stateFBOObject->GetReadBuffer();
if (frontendReadBuf != m_frontendReadBuffer) {
m_frontendReadBuffer = frontendReadBuf;
GLenum glBackendReadBuffer = GetBackendAttachmentType(frontendReadBuf);
if (m_backendReadBuffer != glBackendReadBuffer) {
m_backendReadBuffer = glBackendReadBuffer;
g_GLESFuncs.glReadBuffer(glBackendReadBuffer);
}
}
// -------------------- Attach texture to backend FBO -----------------------
const auto& attachments = stateFBOObject->GetAllAttachmentObjects();
const auto& attachmentVersions = stateFBOObject->GetAllFramebufferAttachmentVersions();
for (SizeT i = 0; i < attachments.size(); ++i) {
const auto& attachmentObject = attachments[i];
auto frontendType = static_cast<FramebufferAttachmentType>(i);
GLenum glBackendAttachment = GL_NONE;
if (frontendType >= FramebufferAttachmentType::Color0 &&
frontendType <= FramebufferAttachmentType::Color31)
glBackendAttachment = GetBackendAttachmentType(frontendType);
else
glBackendAttachment = MG_Util::ConvertFramebufferAttachmentTypeToGLEnum(frontendType);
// relevant FRONTEND!!! version should be checked and updated
if (m_syncedFrontendAttachmentVersions[i] != attachmentVersions[i]) {
if (SyncAttachmentObject(glFBOTarget, attachmentObject, glBackendAttachment)) {
m_syncedFrontendAttachmentVersions[i] = attachmentVersions[i];
}
}
#if MOBILEGL_LOG_ACTIVE_LEVEL <= MOBILEGL_LOG_LEVEL_DEBUG
else {
MGLOG_D("%s: Skipped SyncAttachmentObject(target=%s, frontendObj=(%dx%dx%d, %s), backendAtt=%s), "
"version = %u",
__func__, MG_Util::ConvertGLEnumToString(glFBOTarget).c_str(),
attachmentObject.GetSize().x(), attachmentObject.GetSize().y(),
attachmentObject.GetSize().z(),
MG_Util::ConvertFramebufferAttachmentTypeToString(frontendType).c_str(),
MG_Util::ConvertGLEnumToString(glBackendAttachment).c_str(),
m_syncedFrontendAttachmentVersions[i]);
if (!attachmentObject.IsTexture() && !attachmentObject.IsRenderbuffer()) {
continue;
}
GLint objectType = GL_NONE;
g_GLESFuncs.glGetFramebufferAttachmentParameteriv(
glFBOTarget, glBackendAttachment, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE, &objectType);
MOBILEGL_ASSERT((objectType == GL_NONE) ||
(attachmentObject.IsTexture() && objectType == GL_TEXTURE) ||
(attachmentObject.IsRenderbuffer() && objectType == GL_RENDERBUFFER),
"Attachment type not match!");
GLint objectName = 0;
g_GLESFuncs.glGetFramebufferAttachmentParameteriv(
glFBOTarget, glBackendAttachment, GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME, &objectName);
// Verify that the backend object's name and parameters match the frontend attachment state
if (attachmentObject.IsTexture()) {
const auto& textureObject = attachmentObject.GetTexture();
auto backendTextureIt = TextureImpl::g_backendTextureObjects.find(textureObject.get());
MOBILEGL_ASSERT(backendTextureIt != TextureImpl::g_backendTextureObjects.end(),
"No backend texture found while framebuffer reports texture attachment.");
GLuint backendTexId = backendTextureIt->second->GetBackendTextureId();
MOBILEGL_ASSERT(static_cast<GLint>(backendTexId) == objectName,
"Attachment texture name mismatch between GLES (%d) and backend texture object "
"(%d), frontend texture object ID=%d.",
objectName, backendTexId, textureObject->GetExternalIndex());
GLint texLevel = 0;
g_GLESFuncs.glGetFramebufferAttachmentParameteriv(
glFBOTarget, glBackendAttachment, GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL, &texLevel);
MOBILEGL_ASSERT(texLevel == static_cast<GLint>(attachmentObject.GetTextureLevel()),
"Attachment texture level mismatch between GLES and state object.");
} else if (attachmentObject.IsRenderbuffer()) {
const auto& renderbufferObject = attachmentObject.GetRenderbuffer();
auto backendRboIt =
RenderbufferImpl::g_backendRenderbufferObjects.find(renderbufferObject.get());
MOBILEGL_ASSERT(
backendRboIt != RenderbufferImpl::g_backendRenderbufferObjects.end(),
"No backend renderbuffer found while framebuffer reports renderbuffer attachment.");
GLuint backendRboId = backendRboIt->second->GetBackendRenderbufferId();
MOBILEGL_ASSERT(static_cast<GLint>(backendRboId) == objectName,
"Attachment renderbuffer name mismatch between GLES and state object.");
}
}
#endif
}
}
GLenum BackendFramebufferObject::GetBackendAttachmentType(FramebufferAttachmentType frontendAtt) const {
GLenum glBackendReadBuffer = GL_NONE;
auto it = std::find(m_frontendDrawBuffers, m_frontendDrawBuffers + FramebufferObject::MAX_DRAW_BUFFERS,
frontendAtt);
Bool notFound = (it == m_frontendDrawBuffers + FramebufferObject::MAX_DRAW_BUFFERS);
if (notFound) {
MGLOG_D(
"%s: frontendAtt not found in draw buffer (probably not remapped), just use the same as frontend",
__func__);
glBackendReadBuffer = MG_Util::ConvertFramebufferAttachmentTypeToGLEnum(frontendAtt);
} else {
MGLOG_D("%s: frontendAtt found in draw buffer, keep it consistent as in read buffers", __func__);
auto index = std::distance(m_frontendDrawBuffers, it);
glBackendReadBuffer = m_backendDrawBuffers[index];
}
return glBackendReadBuffer;
}
StateBackendObjectRegistry<MG_State::GLState::FramebufferObject, BackendFramebufferObject>
g_backendFramebufferObjects;
Array<Uint16, SizeT(FramebufferTarget::FramebufferTargetCount)> g_fboBindVersions = {0};
} // namespace FramebufferImpl
namespace PrgramImpl {
Uint32 g_snormFallbackClampOutputMask = 0;
Uint32 g_unormFallbackClampOutputMask = 0;
StateBackendObjectRegistry<MG_State::GLState::ProgramObject, BackendProgramObjectImpl> g_backendProgramObjects;
BackendProgramObjectImpl::BackendProgramObjectImpl() {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
m_backendProgramId = g_GLESFuncs.glCreateProgram();
if (m_backendProgramId == 0) {
MGLOG_E("Failed to create program object in backend.");
MGLOG_E("ES glGetError(): %s", MG_Util::ConvertGLEnumToString(g_GLESFuncs.glGetError()).c_str());
} else {
MGLOG_D("Created backend program object with ID: %u", m_backendProgramId);
}
}
BackendProgramObjectImpl::~BackendProgramObjectImpl() {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (m_backendProgramId != 0) {
MGLOG_D("Deleting backend program object with ID: %u", m_backendProgramId);
g_GLESFuncs.glDeleteProgram(m_backendProgramId);
}
}
void BackendProgramObjectImpl::SyncToBackend(
const SharedPtr<MG_State::GLState::ProgramObject>& stateProgramObject) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (!stateProgramObject) {
MGLOG_E("State program object is null, skipping backend sync.");
return;
}
if (!stateProgramObject->GetLinkStatus()) {
MGLOG_E("Program object is not linked, skipping backend sync. State program ID: %u",
stateProgramObject->GetExternalIndex());
return;
}
MGLOG_D("Syncing program to backend. State program ID: %u, Backend ID: %u",
stateProgramObject->GetExternalIndex(), m_backendProgramId);
m_snormFallbackClampOutputMask = g_snormFallbackClampOutputMask;
m_unormFallbackClampOutputMask = g_unormFallbackClampOutputMask;
// Detach all existing shaders
GLint attachedCount = 0;
g_GLESFuncs.glGetProgramiv(m_backendProgramId, GL_ATTACHED_SHADERS, &attachedCount);
MGLOG_D("Currently attached shaders count: %d", attachedCount);
if (attachedCount > 0) {
Vector<GLuint> attachedShaders(attachedCount);
GLsizei actualCount;
g_GLESFuncs.glGetAttachedShaders(m_backendProgramId, attachedCount, &actualCount,
attachedShaders.data());
MGLOG_D("Detaching %d existing shaders from program %u", actualCount, m_backendProgramId);
for (GLsizei i = 0; i < actualCount; ++i) {
MGLOG_D("Detaching shader ID: %u from program %u", attachedShaders[i], m_backendProgramId);
g_GLESFuncs.glDetachShader(m_backendProgramId, attachedShaders[i]);
}
}
// Attach current shaders
auto& attachedShaders = stateProgramObject->GetAttachedShaders();
MGLOG_D("Attaching %zu shaders to program %u", attachedShaders.size(), m_backendProgramId);
for (auto& shader : attachedShaders) {
const auto& src = shader->GetShaderSource();
const auto& stage =
MG_Util::ConvertGLEnumToString(MG_Util::ConvertShaderStageToGLEnum(shader->GetShaderStage()));
MGLOG_D("Original src @ %s: \n", stage.c_str());
MGLOG_D("%s:", src.empty() ? "" : src.c_str());
}
auto& shaderSpirvs = stateProgramObject->GetGeneratedSpirv();
for (int index = 0; index < attachedShaders.size(); ++index) {
auto& shader = attachedShaders[index];
GLenum glShaderType = MG_Util::ConvertShaderStageToGLEnum(shader->GetShaderStage());
GLuint backendShaderId = g_GLESFuncs.glCreateShader(glShaderType);
if (backendShaderId == 0) {
MGLOG_E("Failed to create backend shader for attachment.");
continue;
}
String source;
auto& spirvCode = shaderSpirvs[index];
// ESSL cannot express gl_DrawID/gl_BaseInstance/gl_BaseVertex; demote them to
// plain globals (mg_*) before handing the module to SPIRV-Cross.
Vector<unsigned int> loweredSpirv;
const Vector<unsigned int>* effectiveSpirv = &spirvCode;
if (glShaderType == GL_VERTEX_SHADER &&
MG_Util::ShaderTranspiler::ShaderCompiler::LowerDrawParametersForEssl(spirvCode, loweredSpirv) &&
!loweredSpirv.empty()) {
effectiveSpirv = &loweredSpirv;
}
MG_Util::ShaderTranspiler::SpvcSession spvcSession(*effectiveSpirv,
MG_Util::ShaderTranspiler::SessionUsageBit::Transpile);
spvc_compiler_options options;
spvcSession.CreateOptions(&options);
spvc_compiler_options_set_uint(options, SPVC_COMPILER_OPTION_GLSL_VERSION,
ResolveBackendEsslVersion());
spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_ES, SPVC_TRUE);
spvc_compiler_options_set_bool(options, SPVC_COMPILER_OPTION_GLSL_VULKAN_SEMANTICS, SPVC_FALSE);
spvcSession.SetOptions(options);
const char* result = nullptr;
spvcSession.Compile(&result);
if (!result) {
MG_Util::ShaderTranspiler::ResultInfo r;
r.log += "Failed to compile the shader to GLSL: \n";
r.log += spvcSession.GetLastErrorString();
r.errc = -5;
MGLOG_E("%s", r.log.c_str());
continue;
}
source = result;
source = RemoveLayoutBinding(source);
source = ProcessOutColorLocations(source);
source = ForceFlatIntegerVaryings(source, glShaderType);
source = EmulateBaseInstanceInVertexShader(std::move(source), glShaderType);
source = PromoteDrawParameterGlobalsToUniforms(std::move(source), glShaderType);
source = ForceSupporterOutput(source);
source = ClampNormFallbackOutputs(std::move(source), glShaderType,
m_snormFallbackClampOutputMask,
m_unormFallbackClampOutputMask);
// Patch for Photon compiler precision issue
String findStr = "1000000.0";
String replaceStr = "65500.0";
auto pos = source.find(findStr);
while (pos != String::npos) {
MGLOG_D("Applying patch #2 to Photon...");
source.replace(pos, findStr.length(), replaceStr);
pos = source.find(findStr, pos);
}
const char* sourceCStr = source.c_str();
MGLOG_D("Setting shader source for backend shader ID: %u\nsrc:\n%s", backendShaderId, sourceCStr);
g_GLESFuncs.glShaderSource(backendShaderId, 1, &sourceCStr, nullptr);
g_GLESFuncs.glCompileShader(backendShaderId);
GLint compileStatus;
g_GLESFuncs.glGetShaderiv(backendShaderId, GL_COMPILE_STATUS, &compileStatus);
if (compileStatus == GL_FALSE) {
GLint logLength;
g_GLESFuncs.glGetShaderiv(backendShaderId, GL_INFO_LOG_LENGTH, &logLength);
Vector<GLchar> log(logLength);
g_GLESFuncs.glGetShaderInfoLog(backendShaderId, logLength, nullptr, log.data());
MGLOG_E("Shader compilation failed for backend ID %u: %s", backendShaderId, log.data());
continue;
}
MGLOG_D("Attaching shader ID: %u to program %u", backendShaderId, m_backendProgramId);
g_GLESFuncs.glAttachShader(m_backendProgramId, backendShaderId);
MGLOG_D("Processed shader source length: %zu", source.length());
}
// Link program
MGLOG_D("Linking program %u", m_backendProgramId);
g_GLESFuncs.glLinkProgram(m_backendProgramId);
GLint linkStatus;
g_GLESFuncs.glGetProgramiv(m_backendProgramId, GL_LINK_STATUS, &linkStatus);
if (linkStatus != GL_TRUE) {
GLint logLength;
g_GLESFuncs.glGetProgramiv(m_backendProgramId, GL_INFO_LOG_LENGTH, &logLength);
Vector<GLchar> log(logLength);
g_GLESFuncs.glGetProgramInfoLog(m_backendProgramId, logLength, nullptr, log.data());
MGLOG_E("Program %u linking failed for %u: %s", stateProgramObject->GetExternalIndex(),
m_backendProgramId, log.data());
} else {
MGLOG_D("Program linked successfully. ID: %u", m_backendProgramId);
}
m_baseInstanceUniformLocation = g_GLESFuncs.glGetUniformLocation(m_backendProgramId,
BASE_INSTANCE_UNIFORM_NAME);
m_drawIdUniformLocation = g_GLESFuncs.glGetUniformLocation(m_backendProgramId, DRAW_ID_UNIFORM_NAME);
m_baseInstanceWordIndexUniformLocation =
g_GLESFuncs.glGetUniformLocation(m_backendProgramId, BASE_INSTANCE_WORD_INDEX_UNIFORM_NAME);
// The mg_IndirectParams block binding is baked into the ESSL (ES cannot rebind
// SSBO blocks after compile); record it so draws bind the indirect buffer there.
m_indirectParamsBinding = -1;
if (m_baseInstanceWordIndexUniformLocation >= 0 && g_GLESFuncs.glGetProgramResourceIndex) {
const GLuint blockIndex = g_GLESFuncs.glGetProgramResourceIndex(
m_backendProgramId, GL_SHADER_STORAGE_BLOCK, INDIRECT_PARAMS_BLOCK_NAME);
if (blockIndex != GL_INVALID_INDEX && g_GLESCapabilities.MaxShaderStorageBufferBindings > 0) {
m_indirectParamsBinding = g_GLESCapabilities.MaxShaderStorageBufferBindings - 1;
}
}
// Create global UBO
if (stateProgramObject->GetUBOSize() > 0) {
g_GLESFuncs.glGenBuffers(1, &m_backendGlobalUBOId);
g_GLESFuncs.glBindBuffer(GL_UNIFORM_BUFFER, m_backendGlobalUBOId);
g_GLESFuncs.glBufferData(GL_UNIFORM_BUFFER, stateProgramObject->GetUBOSize(), nullptr, GL_STREAM_DRAW);
g_GLESFuncs.glBindBuffer(GL_UNIFORM_BUFFER, 0);
} else {
m_backendGlobalUBOId = 0;
}
m_isInitialized = true;
MGLOG_D("Program sync completed. backend ID %u", m_backendProgramId);
}
void BackendProgramObjectImpl::Use() const {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
MGLOG_D("Using program %u", m_backendProgramId);
g_GLESFuncs.glUseProgram(m_backendProgramId);
}
void BackendProgramObjectImpl::SetBaseInstance(Uint32 baseInstance) const {
if (m_baseInstanceUniformLocation >= 0) {
g_GLESFuncs.glUniform1i(m_baseInstanceUniformLocation, static_cast<GLint>(baseInstance));
}
// A direct value disables the indirect-command-buffer read.
if (m_baseInstanceWordIndexUniformLocation >= 0) {
g_GLESFuncs.glUniform1i(m_baseInstanceWordIndexUniformLocation, -1);
}
}
void BackendProgramObjectImpl::SetBaseInstanceWordIndex(Int32 wordIndex) const {
if (m_baseInstanceWordIndexUniformLocation >= 0) {
g_GLESFuncs.glUniform1i(m_baseInstanceWordIndexUniformLocation, wordIndex);
}
}
void BackendProgramObjectImpl::SetDrawID(Uint32 drawId) const {
if (m_drawIdUniformLocation < 0) {
return;
}
g_GLESFuncs.glUniform1i(m_drawIdUniformLocation, static_cast<GLint>(drawId));
}
} // namespace PrgramImpl
namespace SamplerImpl {
BackendSamplerObject::BackendSamplerObject() {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
g_GLESFuncs.glGenSamplers(1, &m_backendSamplerId);
if (m_backendSamplerId == 0) {
MGLOG_E("Failed to generate sampler object.");
MGLOG_E("ES glGetError(): %s", MG_Util::ConvertGLEnumToString(g_GLESFuncs.glGetError()).c_str());
} else {
MGLOG_D("Generated sampler object with ID: %u.", m_backendSamplerId);
}
}
void BackendSamplerObject::SyncToBackend(
const SharedPtr<MG_State::GLState::SamplerObject>& stateSamplerObject) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (!stateSamplerObject) {
MGLOG_E("State sampler object is null, cannot sync to backend.");
return;
}
Uint currentSamplerVersion = stateSamplerObject->GetVersion();
if (m_isInitialized && m_syncedSamplerVersion == currentSamplerVersion) {
MGLOG_D("Sampler parameters have not changed for sampler ID: %u, skipping sync.",
stateSamplerObject->GetExternalIndex());
return;
}
m_syncedSamplerVersion = currentSamplerVersion;
MGLOG_D("Syncing sampler with backend ID %u to backend for state ID %u", m_backendSamplerId,
stateSamplerObject->GetExternalIndex());
const auto& samplerParams = stateSamplerObject->GetAllSamplerParameters();
#define SYNC_SAMPLER_PARAM_IF_CHANGED(internalName, glName, type) \
if (m_cacheSamplerParameters.internalName != samplerParams.internalName) { \
g_GLESFuncs.glSamplerParameteri(m_backendSamplerId, glName, \
(GLint)MG_Util::ConvertSampler##type##ToGLEnum(samplerParams.internalName)); \
m_cacheSamplerParameters.internalName = samplerParams.internalName; \
}
if (m_cacheSamplerParameters.minFilter != samplerParams.minFilter ||
m_cacheSamplerParameters.mipmapMode != samplerParams.mipmapMode) {
g_GLESFuncs.glSamplerParameteri(m_backendSamplerId, GL_TEXTURE_MIN_FILTER,
(GLint)ResolveBackendMinFilter(
samplerParams,
ShouldAvoidSamplerMipmapMinFilterOnAngleLlvmpipe()));
m_cacheSamplerParameters.minFilter = samplerParams.minFilter;
m_cacheSamplerParameters.mipmapMode = samplerParams.mipmapMode;
}
if (m_cacheSamplerParameters.magFilter != samplerParams.magFilter) {
g_GLESFuncs.glSamplerParameteri(
m_backendSamplerId, GL_TEXTURE_MAG_FILTER,
(GLint)MG_Util::ConvertSamplerFilterModeToGLEnum(samplerParams.magFilter, SamplerMipmapMode::None));
m_cacheSamplerParameters.magFilter = samplerParams.magFilter;
}
SYNC_SAMPLER_PARAM_IF_CHANGED(wrapS, GL_TEXTURE_WRAP_S, WrapMode)
SYNC_SAMPLER_PARAM_IF_CHANGED(wrapT, GL_TEXTURE_WRAP_T, WrapMode)
SYNC_SAMPLER_PARAM_IF_CHANGED(wrapR, GL_TEXTURE_WRAP_R, WrapMode)
SYNC_SAMPLER_PARAM_IF_CHANGED(compareFunc, GL_TEXTURE_COMPARE_FUNC, CompareFunc)
SYNC_SAMPLER_PARAM_IF_CHANGED(compareMode, GL_TEXTURE_COMPARE_MODE, CompareMode)
if (m_cacheSamplerParameters.minLod != samplerParams.minLod) {
g_GLESFuncs.glSamplerParameterf(m_backendSamplerId, GL_TEXTURE_MIN_LOD, samplerParams.minLod);
m_cacheSamplerParameters.minLod = samplerParams.minLod;
}
if (m_cacheSamplerParameters.maxLod != samplerParams.maxLod) {
g_GLESFuncs.glSamplerParameterf(m_backendSamplerId, GL_TEXTURE_MAX_LOD, samplerParams.maxLod);
m_cacheSamplerParameters.maxLod = samplerParams.maxLod;
}
#undef SYNC_SAMPLER_PARAM_IF_CHANGED
m_isInitialized = true;
}
void BackendSamplerObject::Bind(Uint unit) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (g_boundSamplersCache[unit] == this) return;
g_GLESFuncs.glBindSampler(static_cast<GLenum>(unit), m_backendSamplerId);
g_boundSamplersCache[unit] = this;
}
Uint BackendSamplerObject::GetBackendSamplerId() const {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
return m_backendSamplerId;
}
void UnbindSampler(Uint unit) {
if (g_boundSamplersCache[unit] == nullptr) return;
g_GLESFuncs.glBindSampler(static_cast<GLenum>(unit), 0);
g_boundSamplersCache[unit] = nullptr;
}
Array<BackendSamplerObject*, MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS> g_boundSamplersCache;
StateBackendObjectRegistry<MG_State::GLState::SamplerObject, BackendSamplerObject> g_backendSamplerObjects;
} // namespace SamplerImpl
namespace RenderbufferImpl {
BackendRenderbufferObject::BackendRenderbufferObject() {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
g_GLESFuncs.glGenRenderbuffers(1, &m_backendRBOId);
if (m_backendRBOId == 0) {
MGLOG_E("Failed to generate renderbuffer object.");
MGLOG_E("ES glGetError(): %s", MG_Util::ConvertGLEnumToString(g_GLESFuncs.glGetError()).c_str());
}
}
void BackendRenderbufferObject::Bind() const {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
g_GLESFuncs.glBindRenderbuffer(GL_RENDERBUFFER, m_backendRBOId);
}
void BackendRenderbufferObject::SyncToBackend(
const SharedPtr<MG_State::GLState::RenderbufferObject>& stateRBOObject) {
#ifdef TRACY_ENABLE
ZoneScopedC(TRACY_ZONECOLOR_BACKEND);
#endif
if (!stateRBOObject) {
MGLOG_E("State RBO object is null, cannot sync to backend.");
return;
}
MGLOG_D("Syncing RBO with backend ID %u to backend for state ID %u", m_backendRBOId,
stateRBOObject->GetExternalIndex());
if (m_isInitialized && m_cacheInternalFormat == stateRBOObject->GetInternalFormat() &&
m_cacheWidth == stateRBOObject->GetWidth() && m_cacheHeight == stateRBOObject->GetHeight() &&
m_cacheSamples == stateRBOObject->GetSamples()) {
MGLOG_D("RBO %u already initialized with matching parameters, skipping re-allocation.",
stateRBOObject->GetExternalIndex());
return;
}
Bind();
// Allocate storage
TextureInternalFormat internalFormat = stateRBOObject->GetInternalFormat();
Int width = static_cast<Int>(stateRBOObject->GetWidth());
Int height = static_cast<Int>(stateRBOObject->GetHeight());
Int samples = static_cast<Int>(stateRBOObject->GetSamples());
GLenum glInternalFormat, glType, glFormat;
TextureImpl::GenerateRenderbufferFormatInfo(internalFormat, &glInternalFormat, &glFormat, &glType);
if (samples > 0) {
g_GLESFuncs.glRenderbufferStorageMultisample(
GL_RENDERBUFFER, static_cast<GLsizei>(samples), glInternalFormat, static_cast<GLsizei>(width),
static_cast<GLsizei>(height));
} else {
g_GLESFuncs.glRenderbufferStorage(GL_RENDERBUFFER, glInternalFormat, static_cast<GLsizei>(width),
static_cast<GLsizei>(height));
}
m_cacheInternalFormat = internalFormat;
m_cacheWidth = width;
m_cacheHeight = height;
m_cacheSamples = samples;
m_isInitialized = true;
MGLOG_D("RBO %u sync completed. backend ID %u", stateRBOObject->GetExternalIndex(), m_backendRBOId);
}
StateBackendObjectRegistry<MG_State::GLState::RenderbufferObject, BackendRenderbufferObject>
g_backendRenderbufferObjects;
} // namespace RenderbufferImpl
} // namespace MobileGL::MG_Backend::DirectGLES
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