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MobileGL/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
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#include "DirectGLES.h"
#include "Utils.h"
#include "Managers.h"
#include <MG_Util/Converters/GLToMG/TextureEnumConverter.h>
#include <MG_Util/Classifiers/TextureEnumClassifier.h>
#include <MG_Util/Metrics/TextureMetrics.h>
#include <MG_State/GLState/Core.h>
#include <MG_Impl/GLImpl/Framebuffer/GL_Framebuffer.h>
#include <MG_Util/BackendLoaders/OpenGL/Loader.h>
#include <MG_Util/Converters/GLToStr/GLEnumConverter.h>
#include <MG_Util/Converters/MGToGL/TextureEnumConverter.h>
#include <MG_Util/Converters/MGToStr/TextureEnumConverter.h>
#include <MG_Util/Converters/MGToGL/RenderStateEnumConverter.h>
namespace MobileGL::MG_Backend::DirectGLES {
enum class DrawSyncBit : Uint32 {
None = 0,
IndexBuffer = 1 << 0,
IndirectBuffer = 1 << 1,
Instancing = 1 << 2
};
inline DrawSyncBit operator|(DrawSyncBit a, DrawSyncBit b) {
return static_cast<DrawSyncBit>(static_cast<uint32_t>(a) | static_cast<uint32_t>(b));
}
inline DrawSyncBit& operator|=(DrawSyncBit& a, DrawSyncBit b) {
a = a | b;
return a;
}
namespace DebugImpl {
void ErrorLopper::Loop(std::function<void(GLenum)> func) {
#if MOBILEGL_LOG_ACTIVE_LEVEL <= MOBILEGL_LOG_LEVEL_DEBUG
GLenum err = MG_External::GLES::glGetError();
while (err != GL_NO_ERROR) {
func(err);
err = MG_External::GLES::glGetError();
}
#endif
}
void ErrorLopper::Clear() {
#if MOBILEGL_LOG_ACTIVE_LEVEL <= MOBILEGL_LOG_LEVEL_DEBUG
GLenum err = MG_External::GLES::glGetError();
while (err != GL_NO_ERROR) {
MGLOG_D("Stray GL Error cleared: %s", MG_Util::ConvertGLEnumToString(err).c_str());
err = MG_External::GLES::glGetError();
}
#endif
}
ErrorLopper::ErrorLopper() {
Clear();
}
ErrorLopper::~ErrorLopper() {
Clear();
}
} // namespace DebugImpl
// TODO: deletion for deleted objects
namespace BufferImpl {
void SyncNeccessaryBuffers(Bool includeIBO = false, Bool includeIndirectBuffer = false) {
// All buffers we need are:
// 1.VBO 2.IBO (if needed) 3.UBO 4.IndirectBuffer (if needed) 5.SSBO (TODO)
// PBO is not needed since it should be handled in frontend
Vector<SharedPtr<MG_State::GLState::BufferObject>> buffersToSync;
const auto& currentVAOObject = MG_State::pGLContext->GetBoundVertexArray();
if (!currentVAOObject) {
MGLOG_E("No VAO is currently bound, cannot sync necessary buffers.");
return;
}
// VBO
for (const auto& attrib : currentVAOObject->GetAllAttributes()) {
if (!attrib.Enabled) continue;
const auto& bufferObject = attrib.Buffer;
if (bufferObject) {
const auto& end = buffersToSync.end();
if (std::find(buffersToSync.begin(), end, bufferObject) == end) {
buffersToSync.push_back(bufferObject);
}
}
}
// IBO
if (includeIBO) {
const auto& possibleIBO = currentVAOObject->GetIndexBufferBindingSlot().GetBoundObject();
if (possibleIBO) {
const auto& end = buffersToSync.end();
if (std::find(buffersToSync.begin(), end, possibleIBO) == end) {
buffersToSync.push_back(possibleIBO);
}
}
}
// Indirect Buffer Object
if (includeIndirectBuffer) {
const auto& possibleIndirectBuffer =
MG_State::pGLContext->GetBufferBindingSlot(BufferTarget::DrawIndirect).GetBoundObject();
if (possibleIndirectBuffer) {
const auto& end = buffersToSync.end();
if (std::find(buffersToSync.begin(), end, possibleIndirectBuffer) == end) {
buffersToSync.push_back(possibleIndirectBuffer);
}
}
}
// UBO
auto uboBindingPointCnt = MG_State::pGLContext->GetBufferBindingPointCount(BufferTarget::Uniform);
for (SizeT i = 0; i < uboBindingPointCnt; ++i) {
auto& point = MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::Uniform, i);
auto obj = point.GetBoundObject();
if (obj) {
const auto& end = buffersToSync.end();
if (std::find(buffersToSync.begin(), end, obj) == end) {
buffersToSync.push_back(obj);
}
}
}
// Do real sync
for (auto& bufferObject : buffersToSync) {
const auto& backendBufferIt = g_backendBufferObjects.find(bufferObject);
SharedPtr<BackendBufferObject> backendBufferObject;
if (backendBufferIt == g_backendBufferObjects.end()) {
backendBufferObject = MakeShared<BackendBufferObject>();
g_backendBufferObjects[bufferObject] = backendBufferObject;
} else {
backendBufferObject = backendBufferIt->second;
}
backendBufferObject->SyncToBackend(bufferObject);
}
}
} // namespace BufferImpl
namespace VertexArrayImpl {
void SyncCurrentVAO(Bool needDivisor) {
auto currentVAOObject = MG_State::pGLContext->GetBoundVertexArray();
if (!currentVAOObject) {
MGLOG_E("No VAO is currently bound, cannot sync current VAO.");
return;
}
const auto& backendVAOIt = g_backendVertexArrayObjects.find(currentVAOObject);
SharedPtr<VertexArrayImpl::BackendVertexArrayObject> backendVAOObject;
if (backendVAOIt == g_backendVertexArrayObjects.end()) {
backendVAOObject = MakeShared<VertexArrayImpl::BackendVertexArrayObject>();
g_backendVertexArrayObjects[currentVAOObject] = backendVAOObject;
} else {
backendVAOObject = backendVAOIt->second;
}
backendVAOObject->SyncToBackend(currentVAOObject, needDivisor);
}
} // namespace VertexArrayImpl
namespace TextureImpl {
SharedPtr<BackendTextureObject> SyncTextureObjectToBackend(
SharedPtr<MG_State::GLState::ITextureObject>& textureObject) {
const auto& backendTextureIt = g_backendTextureObjects.find(textureObject);
SharedPtr<BackendTextureObject> backendTextureObject;
if (backendTextureIt == g_backendTextureObjects.end()) {
backendTextureObject = MakeShared<BackendTextureObject>();
g_backendTextureObjects[textureObject] = backendTextureObject;
} else {
backendTextureObject = backendTextureIt->second;
}
backendTextureObject->SyncToBackend(textureObject);
return backendTextureObject;
}
void SyncNeccessaryTextures() {
// All textures we need are:
// 1. textures bound to texture units (TODO: only sync ones that are used in current program)
// 2. textures used in current FBO
// 3. textures bound to image units (TODO)
Vector<SharedPtr<MG_State::GLState::ITextureObject>> texturesToSync;
for (int index = 0; index < MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS; ++index) {
auto& unit = MG_State::pGLContext->GetTextureUnitObject(index);
for (const auto& bindingSlot : unit.GetAllBindingSlots()) {
const auto& textureObject = bindingSlot.GetBoundObject();
if (textureObject) {
const auto& end = texturesToSync.end();
if (std::find(texturesToSync.begin(), end, textureObject) == end) {
texturesToSync.push_back(textureObject);
}
}
}
}
const auto& currentFBO =
MG_State::pGLContext->GetFramebufferBindingSlot(FramebufferTarget::Draw).GetBoundObject();
if (currentFBO) {
for (const auto& attachment : currentFBO->GetAllAttachments()) {
if (!attachment.IsTexture()) continue;
const auto& textureObject = attachment.GetTexture();
if (textureObject) {
const auto& end = texturesToSync.end();
if (std::find(texturesToSync.begin(), end, textureObject) == end) {
texturesToSync.push_back(textureObject);
}
}
}
}
// Do real sync
for (auto& textureObject : texturesToSync) {
SyncTextureObjectToBackend(textureObject);
}
}
} // namespace TextureImpl
namespace FramebufferImpl {
void SyncCurrentFBO() {
const FramebufferTarget fboTargets[] = {FramebufferTarget::Draw, FramebufferTarget::Read};
MG_State::GLState::FramebufferObject* lastUpdatedFBO = nullptr;
for (auto target : fboTargets) {
auto currentFBO = MG_State::pGLContext->GetFramebufferBindingSlot(target).GetBoundObject();
if (!currentFBO) {
MGLOG_E("No FBO is currently bound, cannot sync current FBO.");
continue;
}
if (currentFBO == MG_Impl::GLImpl::FramebufferImpl::pDefaultFramebufferInfo->defaultFBO) {
// Default FBO, nothing to sync
continue;
}
const auto& backendFBOIt = g_backendFramebufferObjects.find(currentFBO);
SharedPtr<BackendFramebufferObject> backendFBOObject;
if (backendFBOIt == g_backendFramebufferObjects.end()) {
backendFBOObject = MakeShared<BackendFramebufferObject>();
g_backendFramebufferObjects[currentFBO] = backendFBOObject;
} else {
backendFBOObject = backendFBOIt->second;
}
if (currentFBO.get() == lastUpdatedFBO) {
MGLOG_D("Draw FBO and read FBO are the same, skipping sync.");
} else {
backendFBOObject->SyncToBackend(currentFBO, target);
}
backendFBOObject->Bind(target);
lastUpdatedFBO = currentFBO.get();
}
}
} // namespace FramebufferImpl
namespace RenderStateImpl {
void SyncRenderState() {
MG_External::GLES::glViewport(
MG_State::pGLContext->GetViewport().x(), MG_State::pGLContext->GetViewport().y(),
MG_State::pGLContext->GetViewport().z(), MG_State::pGLContext->GetViewport().w());
#define SYNC_CAPABILITY(cap_mg, cap_gl) \
if (MG_State::pGLContext->IsCapabilityEnabled(cap_mg)) { \
MG_External::GLES::glEnable(cap_gl); \
} else { \
MG_External::GLES::glDisable(cap_gl); \
}
SYNC_CAPABILITY(CapabilityInput::Blend, GL_BLEND);
SYNC_CAPABILITY(CapabilityInput::DepthTest, GL_DEPTH_TEST);
SYNC_CAPABILITY(CapabilityInput::ScissorTest, GL_SCISSOR_TEST);
SYNC_CAPABILITY(CapabilityInput::CullFace, GL_CULL_FACE);
#undef SYNC_CAPABILITY
const auto& ToGLBoolean = [](Bool b) -> GLboolean { return b ? GL_TRUE : GL_FALSE; };
{ // Blend func
BlendFactor srcRGB, dstRGB, srcAlpha, dstAlpha;
MG_State::pGLContext->GetBlendFunc(srcRGB, dstRGB, srcAlpha, dstAlpha);
MG_External::GLES::glBlendFuncSeparate(
MG_Util::ConvertBlendFactorToGLEnum(srcRGB), MG_Util::ConvertBlendFactorToGLEnum(dstRGB),
MG_Util::ConvertBlendFactorToGLEnum(srcAlpha), MG_Util::ConvertBlendFactorToGLEnum(dstAlpha));
}
{ // Blend equation
DepthTestFunc df = MG_State::pGLContext->GetDepthFunc();
MG_External::GLES::glDepthFunc(MG_Util::ConvertDepthTestFuncToGLEnum(df));
MG_External::GLES::glDepthMask(MG_State::pGLContext->GetDepthMask() ? GL_TRUE : GL_FALSE);
}
{ // Color mask
BoolVec4 colorMask = MG_State::pGLContext->GetColorMask();
MG_External::GLES::glColorMask(ToGLBoolean(colorMask.x()), ToGLBoolean(colorMask.y()),
ToGLBoolean(colorMask.z()), ToGLBoolean(colorMask.w()));
}
{ // Clear values
const FloatVec4& clearCol = MG_State::pGLContext->GetClearColor();
MG_External::GLES::glClearColor(clearCol.x(), clearCol.y(), clearCol.z(), clearCol.w());
MG_External::GLES::glClearDepthf(MG_State::pGLContext->GetClearDepth());
}
{ // Cull face mode
CullFaceMode cfm = MG_State::pGLContext->GetCullFaceMode();
MG_External::GLES::glCullFace(MG_Util::ConvertCullFaceModeToGLEnum(cfm));
}
{ // Scissor box
const IntVec4& scissorBox = MG_State::pGLContext->GetScissorBox();
MG_External::GLES::glScissor(scissorBox.x(), scissorBox.y(), scissorBox.z(), scissorBox.w());
}
}
} // namespace RenderStateImpl
namespace PrgramImpl {
void SyncCurrentProgram() {
auto currentProgram = MG_State::pGLContext->GetCurrentProgram();
if (!currentProgram || !currentProgram->GetLinkStatus()) {
MG_External::GLES::glUseProgram(0);
return;
}
const auto& backendProgramIt = g_backendProgramObjects.find(currentProgram);
SharedPtr<BackendProgramObjectImpl> backendProgram;
if (backendProgramIt == g_backendProgramObjects.end()) {
backendProgram = MakeShared<BackendProgramObjectImpl>();
g_backendProgramObjects[currentProgram] = backendProgram;
backendProgram->SyncToBackend(currentProgram);
} else {
backendProgram = backendProgramIt->second;
if (!backendProgram->GetBackendProgramId()) {
backendProgram->SyncToBackend(currentProgram);
}
}
}
} // namespace PrgramImpl
void BindCurrentFBO(FramebufferTarget target) {
const auto& currentFBO = MG_State::pGLContext->GetFramebufferBindingSlot(target).GetBoundObject();
if (currentFBO && currentFBO != MG_Impl::GLImpl::FramebufferImpl::pDefaultFramebufferInfo->defaultFBO) {
const auto& backendFBOIt = FramebufferImpl::g_backendFramebufferObjects.find(currentFBO);
if (backendFBOIt != FramebufferImpl::g_backendFramebufferObjects.end()) {
backendFBOIt->second->Bind(target);
} else {
MGLOG_E("No backend FBO found (maybe not synced) for current %s FBO, cannot bind FBO.",
(target == FramebufferTarget::Read ? "READ" : "DRAW"));
}
} else {
MGLOG_D("Binding default framebuffer as %s FBO", (target == FramebufferTarget::Read ? "READ" : "DRAW"));
MG_External::GLES::glBindFramebuffer(
target == FramebufferTarget::Draw ? GL_DRAW_FRAMEBUFFER : GL_READ_FRAMEBUFFER, 0);
}
}
void PrepareForDraw(DrawSyncBit syncBit) {
BufferImpl::SyncNeccessaryBuffers(syncBit & DrawSyncBit::IndexBuffer, syncBit & DrawSyncBit::IndirectBuffer);
VertexArrayImpl::SyncCurrentVAO(syncBit & DrawSyncBit::Instancing);
TextureImpl::SyncNeccessaryTextures();
FramebufferImpl::SyncCurrentFBO();
PrgramImpl::SyncCurrentProgram();
RenderStateImpl::SyncRenderState();
BindCurrentFBO(FramebufferTarget::Draw);
const auto& currentVAO = MG_State::pGLContext->GetBoundVertexArray();
if (currentVAO) {
const auto& backendVAOIt = VertexArrayImpl::g_backendVertexArrayObjects.find(currentVAO);
if (backendVAOIt != VertexArrayImpl::g_backendVertexArrayObjects.end()) {
backendVAOIt->second->Bind();
}
} else {
MG_External::GLES::glBindVertexArray(0);
}
Int maxTextureUnits = MG_State::GLState::TextureState::MAX_TEXTURE_IMAGE_UNITS;
for (Int unit = 0; unit < maxTextureUnits; ++unit) {
auto& textureUnit = MG_State::pGLContext->GetTextureUnitObject(unit);
MG_External::GLES::glActiveTexture(GL_TEXTURE0 + unit);
for (const auto& bindingSlot : textureUnit.GetAllBindingSlots()) {
const auto& textureObject = bindingSlot.GetBoundObject();
if (!textureObject) continue;
// Bind texture object
auto target = textureObject->GetTarget();
if (target == TextureTarget::TextureBuffer || target == TextureTarget::Texture1D ||
target == TextureTarget::TextureRectangle || target == TextureTarget::Texture2DMultisampleArray ||
target == TextureTarget::Texture1DArray || target == TextureTarget::Texture3D ||
target == TextureTarget::Texture2DMultisample || target == TextureTarget::Texture2DArray) {
MGLOG_D(" Texture target %s is not supported, skipping.",
MG_Util::ConvertTextureTargetToString(target).c_str());
continue;
}
const auto& backendTextureIt = TextureImpl::g_backendTextureObjects.find(textureObject);
if (backendTextureIt == TextureImpl::g_backendTextureObjects.end()) continue;
GLenum targetGL = MG_Util::ConvertTextureTargetToGLEnum(target);
backendTextureIt->second->Bind(targetGL);
}
// Bind sampler object
const auto& samplerObject = textureUnit.GetSamplerObject();
if (samplerObject) {
const auto& backendSamplerIt = SamplerImpl::g_backendSamplerObjects.find(samplerObject);
if (backendSamplerIt != SamplerImpl::g_backendSamplerObjects.end()) {
backendSamplerIt->second->Bind(unit);
}
} else {
MG_External::GLES::glBindSampler(unit, 0);
}
}
const auto& currentProgram = MG_State::pGLContext->GetCurrentProgram();
if (currentProgram && currentProgram->GetLinkStatus()) {
const auto& backendProgramIt = PrgramImpl::g_backendProgramObjects.find(currentProgram);
if (backendProgramIt != PrgramImpl::g_backendProgramObjects.end()) {
backendProgramIt->second->Use();
auto backendProgramId = backendProgramIt->second->GetBackendProgramId();
// Global UBO
if (currentProgram->GetUBOSize() > 0) {
MG_External::GLES::glBindBuffer(GL_UNIFORM_BUFFER,
backendProgramIt->second->GetBackendGlobalUBOId());
MG_External::GLES::glBufferSubData(GL_UNIFORM_BUFFER, 0, currentProgram->GetUBOSize(),
currentProgram->MapUBO());
MG_External::GLES::glBindBuffer(GL_UNIFORM_BUFFER, 0);
Uint blockIndex = MG_External::GLES::glGetUniformBlockIndex(
backendProgramId, MG_Util::ShaderTranspiler::GLOBAL_UBO_NAME);
MG_External::GLES::glUniformBlockBinding(backendProgramId, blockIndex, 0);
MG_External::GLES::glBindBufferBase(GL_UNIFORM_BUFFER, 0,
backendProgramIt->second->GetBackendGlobalUBOId());
}
// Normal UBO
auto uboCount = currentProgram->GetActiveUniformBlocksCount();
Uint lastUBOBinding = 0; // to prevent overlapping bindings between global UBO and normal UBOs
for (Int i = 0; i < uboCount; ++i) {
++lastUBOBinding;
// program state binding index == backend binding index
// Connect program ubo index to backend binding point
auto binding = currentProgram->GetUniformBlockBinding(i);
auto& name = currentProgram->GetUniformBlockName(i);
GLuint backendBlkIdx = MG_External::GLES::glGetUniformBlockIndex(backendProgramId, name.c_str());
MG_External::GLES::glUniformBlockBinding(backendProgramId, backendBlkIdx, lastUBOBinding);
// Connect buffer to backend binding point
auto& point = MG_State::pGLContext->GetBufferBindingPoint(BufferTarget::Uniform, binding);
auto bufferObj = point.GetBoundObject();
auto range = point.GetRange();
if (bufferObj) {
const auto& backendBufferIt = BufferImpl::g_backendBufferObjects.find(bufferObj);
if (backendBufferIt != BufferImpl::g_backendBufferObjects.end()) {
const auto& backendBufferObject = backendBufferIt->second;
backendBufferObject->Bind(GL_UNIFORM_BUFFER);
if (range.end == 0) {
MG_External::GLES::glBindBufferBase(GL_UNIFORM_BUFFER, lastUBOBinding,
backendBufferObject->GetBackendBufferId());
} else {
MG_External::GLES::glBindBufferRange(GL_UNIFORM_BUFFER, lastUBOBinding,
backendBufferObject->GetBackendBufferId(),
range.start, range.end - range.start);
}
} else {
MGLOG_E("No backend buffer found for UBO binding, cannot bind UBO.");
}
}
}
// Sampler unit binding
auto maxUniformLoc = currentProgram->GetMaxUniformLocation();
for (int loc = 0; loc < maxUniformLoc; ++loc) {
auto unit = currentProgram->GetUniformSamplerOrImageUnitIndex(loc);
if (unit == -1) continue;
auto& name = currentProgram->GetUniformName(loc);
auto locAtBackend = MG_External::GLES::glGetUniformLocation(
backendProgramIt->second->GetBackendProgramId(), name.c_str());
MG_External::GLES::glUniform1i(locAtBackend, unit);
auto samplerObject = MG_State::pGLContext->GetTextureUnitObject(unit).GetSamplerObject();
if (samplerObject) {
const auto& backendSamplerIt = SamplerImpl::g_backendSamplerObjects.find(samplerObject);
SharedPtr<SamplerImpl::BackendSamplerObject> backendSamplerObject;
if (backendSamplerIt == SamplerImpl::g_backendSamplerObjects.end()) {
backendSamplerObject = MakeShared<SamplerImpl::BackendSamplerObject>();
SamplerImpl::g_backendSamplerObjects[samplerObject] = backendSamplerObject;
} else {
backendSamplerObject = backendSamplerIt->second;
}
backendSamplerObject->SyncToBackend(samplerObject);
} else {
MG_External::GLES::glBindSampler(unit, 0);
}
}
} else {
MG_External::GLES::glUseProgram(0);
MGLOG_E("No backend program found (maybe not synced) for current program, cannot use program.");
}
}
}
void Clear(GLbitfield mask) {
TextureImpl::SyncNeccessaryTextures();
FramebufferImpl::SyncCurrentFBO();
RenderStateImpl::SyncRenderState();
BindCurrentFBO(FramebufferTarget::Draw);
MG_External::GLES::glClear(mask);
}
void DrawElements(GLenum mode, GLsizei count, GLenum type, const void* indices) {
DrawSyncBit syncBit = DrawSyncBit::IndexBuffer;
PrepareForDraw(syncBit);
MG_External::GLES::glDrawElements(mode, count, type, indices);
}
void DrawArrays(GLenum mode, GLint first, GLsizei count) {
DrawSyncBit syncBit = DrawSyncBit::None;
PrepareForDraw(syncBit);
MG_External::GLES::glDrawArrays(mode, first, count);
}
void DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, const GLvoid* indices, GLint basevertex) {
DrawSyncBit syncBit = DrawSyncBit::IndexBuffer;
PrepareForDraw(syncBit);
MG_External::GLES::glDrawElementsBaseVertex(mode, count, type, indices, basevertex);
}
void MultiDrawElements(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
GLsizei drawcount) {
DrawSyncBit syncBit = DrawSyncBit::IndexBuffer;
PrepareForDraw(syncBit);
for (GLsizei i = 0; i < drawcount; ++i) {
MG_External::GLES::glDrawElements(mode, count[i], type, indices[i]);
}
}
void MultiDrawElementsBaseVertex(GLenum mode, const GLsizei* count, GLenum type, const GLvoid* const* indices,
GLsizei drawcount, const GLint* basevertex) {
DrawSyncBit syncBit = DrawSyncBit::IndexBuffer;
PrepareForDraw(syncBit);
for (GLsizei i = 0; i < drawcount; ++i) {
MG_External::GLES::glDrawElementsBaseVertex(mode, count[i], type, indices[i], basevertex[i]);
}
}
void MultiDrawElementsIndirect(GLenum mode, GLenum type, const void* indirect, GLsizei drawcount, GLsizei stride) {
DrawSyncBit syncBit = DrawSyncBit::IndexBuffer | DrawSyncBit::IndirectBuffer;
PrepareForDraw(syncBit);
for (GLsizei i = 0; i < drawcount; ++i) {
const GLvoid* cmd = reinterpret_cast<const GLvoid*>(reinterpret_cast<const uint8_t*>(indirect) +
i * (stride ? stride : sizeof(GLsizei) * 4));
MG_External::GLES::glDrawElementsIndirect(mode, type, cmd);
}
}
void MultiDrawArraysIndirect(GLenum mode, const void* indirect, GLsizei drawcount, GLsizei stride) {
DrawSyncBit syncBit = DrawSyncBit::IndirectBuffer;
PrepareForDraw(syncBit);
for (GLsizei i = 0; i < drawcount; ++i) {
const GLvoid* cmd = reinterpret_cast<const GLvoid*>(reinterpret_cast<const uint8_t*>(indirect) +
i * (stride ? stride : sizeof(GLsizei) * 4));
MG_External::GLES::glDrawArraysIndirect(mode, cmd);
}
}
void DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type,
const void* indices, GLint basevertex) {
DrawSyncBit syncBit = DrawSyncBit::IndexBuffer;
PrepareForDraw(syncBit);
MG_External::GLES::glDrawRangeElementsBaseVertex(mode, start, end, count, type, indices, basevertex);
}
void DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const void* indices) {
DrawSyncBit syncBit = DrawSyncBit::IndexBuffer;
PrepareForDraw(syncBit);
MG_External::GLES::glDrawRangeElements(mode, start, end, count, type, indices);
}
void DrawElementsInstancedBaseVertexBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
GLsizei instancecount, GLint basevertex, GLuint baseinstance) {
// Not supported in OpenGL ES
MGLOG_W("DrawElementsInstancedBaseVertexBaseInstance is not supported in OpenGL ES.");
}
void DrawElementsInstancedBaseVertex(GLenum mode, GLsizei count, GLenum type, const void* indices,
GLsizei instancecount, GLint basevertex) {
DrawSyncBit syncBit = DrawSyncBit::IndexBuffer | DrawSyncBit::Instancing;
PrepareForDraw(syncBit);
MG_External::GLES::glDrawElementsInstancedBaseVertex(mode, count, type, indices, instancecount, basevertex);
}
void DrawElementsInstancedBaseInstance(GLenum mode, GLsizei count, GLenum type, const void* indices,
GLsizei instancecount, GLuint baseinstance) {
// Not supported in OpenGL ES
MGLOG_W("DrawElementsInstancedBaseInstance is not supported in OpenGL ES.");
}
void DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, const void* indices, GLsizei instancecount) {
DrawSyncBit syncBit = DrawSyncBit::IndexBuffer | DrawSyncBit::Instancing;
PrepareForDraw(syncBit);
MG_External::GLES::glDrawElementsInstanced(mode, count, type, indices, instancecount);
}
void DrawElementsIndirect(GLenum mode, GLenum type, const void* indirect) {
DrawSyncBit syncBit = DrawSyncBit::IndexBuffer | DrawSyncBit::IndirectBuffer;
PrepareForDraw(syncBit);
MG_External::GLES::glDrawElementsIndirect(mode, type, indirect);
}
void DrawArraysInstancedBaseInstance(GLenum mode, GLint first, GLsizei count, GLsizei instancecount,
GLuint baseinstance) {
// Not supported in OpenGL ES
MGLOG_W("DrawArraysInstancedBaseInstance is not supported in OpenGL ES.");
}
void DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei instancecount) {
DrawSyncBit syncBit = DrawSyncBit::Instancing;
PrepareForDraw(syncBit);
MG_External::GLES::glDrawArraysInstanced(mode, first, count, instancecount);
}
void DrawArraysIndirect(GLenum mode, const void* indirect) {
DrawSyncBit syncBit = DrawSyncBit::IndirectBuffer;
PrepareForDraw(syncBit);
MG_External::GLES::glDrawArraysIndirect(mode, indirect);
}
void BlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1,
GLint dstY1, GLbitfield mask, GLenum filter) {
DebugImpl::ErrorLopper errorLopper;
TextureImpl::SyncNeccessaryTextures();
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
FramebufferImpl::SyncCurrentFBO();
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
RenderStateImpl::SyncRenderState();
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
BindCurrentFBO(FramebufferTarget::Draw);
BindCurrentFBO(FramebufferTarget::Read);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
MG_External::GLES::glBlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
}
void CopyTexImage2D(GLenum target, GLint level, GLenum internalformat, GLint x, GLint y, GLsizei width,
GLsizei height, GLint border) {
DebugImpl::ErrorLopper errorLopper;
MGLOG_D("%s: Backend", __func__);
TextureImpl::SyncNeccessaryTextures();
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
FramebufferImpl::SyncCurrentFBO();
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
RenderStateImpl::SyncRenderState();
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
GLint realInternalFormat;
MG_External::GLES::glGetTexLevelParameteriv(target, level, GL_TEXTURE_INTERNAL_FORMAT, &realInternalFormat);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
internalformat = (GLenum)realInternalFormat;
auto mglInternalFormat = MG_Util::ConvertGLEnumToTextureInternalFormat(internalformat);
GLenum format = GL_DEPTH_COMPONENT;
GLenum type = GL_UNSIGNED_INT;
TextureImpl::GenerateTextureFormatInfo(mglInternalFormat, &internalformat, &format, &type);
TexturePixelDataType texturePixelDataType = MG_Util::ConvertGLEnumToTexturePixelDataType(type);
bool isDepthFormat =
MG_Util::IsDepthFormatInternalFormat(MG_Util::ConvertGLEnumToTextureInternalFormat(internalformat));
bool isStencilFormat =
MG_Util::IsStencilFormatInternalFormat(MG_Util::ConvertGLEnumToTextureInternalFormat(internalformat));
if (!isDepthFormat) {
MG_External::GLES::glCopyTexImage2D(target, level, internalformat, x, y, width, height, border);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
} else {
MGLOG_D("%s: Backend depth", __func__);
MG_External::GLES::glTexImage2D(target, level, (GLint)internalformat, width, height, border, format, type,
nullptr);
FramebufferImpl::BackendFramebufferBindingProtector drawFboProtector(GL_DRAW_FRAMEBUFFER);
FramebufferImpl::BackendFramebufferBindingProtector readFboProtector(GL_READ_FRAMEBUFFER);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
FramebufferImpl::BackendFramebufferBindingProtector::BindTempFBO(FramebufferTarget::Draw);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
GLint currentTex;
MG_External::GLES::glGetIntegerv(Utils::GetBindingQuery(target, false), &currentTex);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
GLenum attachment = isStencilFormat ? GL_DEPTH_STENCIL_ATTACHMENT : GL_DEPTH_ATTACHMENT;
MG_External::GLES::glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, attachment, target, currentTex, level);
if (MG_External::GLES::glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
// Protector will automatically revert to previous fbo states
return;
}
MG_External::GLES::glBlitFramebuffer(x, y, x + width, y + height, 0, 0, width, height,
GL_DEPTH_BUFFER_BIT | (isStencilFormat ? GL_STENCIL_BUFFER_BIT : 0),
GL_NEAREST);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
// Protector will automatically revert to previous fbo states
}
// TODO: potential desync between MG_State and backend
auto activeUnit = MG_State::pGLContext->GetTextureUnitObject(MG_State::pGLContext->GetActiveTextureUnit());
TextureTarget textureTarget = MG_Util::ConvertGLEnumToTextureTarget(target);
auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
auto textureObject = bindingSlot.GetBoundObject();
textureObject->SetInternalFormat(mglInternalFormat);
MOBILEGL_ASSERT(nullptr != dynamic_cast<MG_State::GLState::TextureMipmapObject*>(textureObject.get()),
"Texture object here should always be an object with mipmap");
auto textureMipmapObject = static_cast<MG_State::GLState::TextureMipmapObject*>(textureObject.get());
textureMipmapObject->AllocateStorage(TextureUploadTarget::Texture2D, level, {{width, height, 1}, 0});
}
void CopyTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLint x, GLint y, GLsizei width,
GLsizei height) {
DebugImpl::ErrorLopper errorLopper;
MGLOG_D("%s: Backend", __func__);
TextureImpl::SyncNeccessaryTextures();
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
FramebufferImpl::SyncCurrentFBO();
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
RenderStateImpl::SyncRenderState();
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
Int unit = MG_State::pGLContext->GetActiveTextureUnit();
auto& activeUnit = MG_State::pGLContext->GetTextureUnitObject(unit);
TextureTarget textureTarget = MG_Util::ConvertGLEnumToTextureTarget(target);
auto& bindingSlot = activeUnit.GetBindingSlot(textureTarget);
const auto& textureObject = bindingSlot.GetBoundObject();
const auto& backendTextureIt = TextureImpl::g_backendTextureObjects.find(textureObject);
SharedPtr<TextureImpl::BackendTextureObject> backendTextureObject;
if (backendTextureIt == TextureImpl::g_backendTextureObjects.end()) {
backendTextureObject = MakeShared<TextureImpl::BackendTextureObject>();
TextureImpl::g_backendTextureObjects[textureObject] = backendTextureObject;
} else {
backendTextureObject = backendTextureIt->second;
}
backendTextureObject->Bind(target);
BindCurrentFBO(FramebufferTarget::Read);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
GLenum internalFormat;
MG_External::GLES::glGetTexLevelParameteriv(target, level, GL_TEXTURE_INTERNAL_FORMAT, (GLint*)&internalFormat);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
auto mglInternalFormat = MG_Util::ConvertGLEnumToTextureInternalFormat(internalFormat);
bool isDepthFormat = MG_Util::IsDepthFormatInternalFormat(mglInternalFormat);
bool isStencilFormat = MG_Util::IsStencilFormatInternalFormat(mglInternalFormat);
if (!isDepthFormat) {
MG_External::GLES::glCopyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
} else {
MGLOG_D("%s: Backend depth", __func__);
FramebufferImpl::BackendFramebufferBindingProtector drawFboProtector(GL_DRAW_FRAMEBUFFER);
FramebufferImpl::BackendFramebufferBindingProtector readFboProtector(GL_READ_FRAMEBUFFER);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
FramebufferImpl::BackendFramebufferBindingProtector::BindTempFBO(FramebufferTarget::Draw);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
GLint currentTex;
MG_External::GLES::glGetIntegerv(Utils::GetBindingQuery(target, false), &currentTex);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
GLenum attachment = isStencilFormat ? GL_DEPTH_STENCIL_ATTACHMENT : GL_DEPTH_ATTACHMENT;
MG_External::GLES::glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, attachment, target, currentTex, level);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
if (MG_External::GLES::glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
// Protector will automatically revert to previous fbo states
return;
}
MG_External::GLES::glBlitFramebuffer(
x, y, x + width, y + height, xoffset, yoffset, xoffset + width, yoffset + height,
GL_DEPTH_BUFFER_BIT | (isStencilFormat ? GL_STENCIL_BUFFER_BIT : 0), GL_NEAREST);
errorLopper.Loop([file = __FILE__, line = __LINE__](auto err) {
MGLOG_D("ES error (%s:%d): %s", file, line, MG_Util::ConvertGLEnumToString(err).c_str());
});
// Protector will automatically revert to previous fbo states
}
}
void GenerateMipmap(GLenum target) {
auto unitIndex = MG_State::pGLContext->GetActiveTextureUnit();
auto& unit = MG_State::pGLContext->GetTextureUnitObject(unitIndex);
auto& slot = unit.GetBindingSlot(MG_Util::ConvertGLEnumToTextureTarget(target));
auto texture = slot.GetBoundObject();
auto backendTexture = TextureImpl::SyncTextureObjectToBackend(texture);
TextureImpl::BackendTextureBindingProtector protector(target);
backendTexture->Bind(target);
MG_External::GLES::glGenerateMipmap(target);
}
const GLubyte* GetString(GLenum name) {
return MG_External::GLES::glGetString(name);
}
} // namespace MobileGL::MG_Backend::DirectGLES
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