dali/internal/graphics/gles-impl/egl-graphics-controller.cpp

   1 /*
   2  * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 // CLASS HEADER
  18 #include <dali/internal/graphics/gles-impl/egl-graphics-controller.h>
  19
  20 // INTERNAL INCLUDES
  21 #include <dali/integration-api/adaptor-framework/render-surface-interface.h>
  22 #include <dali/integration-api/debug.h>
  23 #include <dali/integration-api/gl-abstraction.h>
  24 #include <dali/integration-api/gl-defines.h>
  25 #include <dali/integration-api/graphics-sync-abstraction.h>
  26 #include <dali/internal/graphics/gles-impl/egl-sync-object.h>
  27 #include <dali/internal/graphics/gles-impl/gles-graphics-command-buffer.h>
  28 #include <dali/internal/graphics/gles-impl/gles-graphics-pipeline.h>
  29 #include <dali/internal/graphics/gles-impl/gles-graphics-program.h>
  30 #include <dali/internal/graphics/gles-impl/gles-graphics-render-pass.h>
  31 #include <dali/internal/graphics/gles-impl/gles-graphics-render-target.h>
  32 #include <dali/internal/graphics/gles-impl/gles-graphics-shader.h>
  33 #include <dali/internal/graphics/gles-impl/gles-graphics-texture.h>
  34 #include <dali/internal/graphics/gles-impl/gles-graphics-types.h>
  35 #include <dali/internal/graphics/gles-impl/gles-sync-object.h>
  36 #include <dali/internal/graphics/gles-impl/gles3-graphics-memory.h>
  37 #include <dali/internal/graphics/gles/egl-sync-implementation.h>
  38 #include <dali/public-api/common/dali-common.h>
  39
  40 // Uncomment the following define to turn on frame dumping
  41 //#define ENABLE_COMMAND_BUFFER_FRAME_DUMP 1
  42 #include <dali/internal/graphics/gles-impl/egl-graphics-controller-debug.h>
  43 DUMP_FRAME_INIT();
  44
  45 namespace Dali::Graphics
  46 {
  47 namespace
  48 {
  49 /**
  50  * @brief Custom deleter for all Graphics objects created
  51  * with use of the Controller.
  52  *
  53  * When Graphics object dies the unique pointer (Graphics::UniquePtr)
  54  * doesn't destroy it directly but passes the ownership back
  55  * to the Controller. The GLESDeleter is responsible for passing
  56  * the object to the discard queue (by calling Resource::DiscardResource()).
  57  */
  58 template<typename T>
  59 struct GLESDeleter
  60 {
  61   GLESDeleter() = default;
  62
  63   void operator()(T* object)
  64   {
  65     // Discard resource (add it to discard queue)
  66     object->DiscardResource();
  67   }
  68 };
  69
  70 /**
  71  * @brief Helper function allocating graphics object
  72  *
  73  * @param[in] info Create info structure
  74  * @param[in] controller Controller object
  75  * @param[out] out Unique pointer to the return object
  76  */
  77 template<class GLESType, class GfxCreateInfo, class T>
  78 auto NewObject(const GfxCreateInfo& info, EglGraphicsController& controller, T&& oldObject)
  79 {
  80   // Use allocator
  81   using Type = typename T::element_type;
  82   using UPtr = Graphics::UniquePtr<Type>;
  83   if(info.allocationCallbacks)
  84   {
  85     auto* memory = info.allocationCallbacks->allocCallback(
  86       sizeof(GLESType),
  87       0,
  88       info.allocationCallbacks->userData);
  89     return UPtr(new(memory) GLESType(info, controller), GLESDeleter<GLESType>());
  90   }
  91   else // Use standard allocator
  92   {
  93     return UPtr(new GLESType(info, controller), GLESDeleter<GLESType>());
  94   }
  95 }
  96
  97 template<class T0, class T1>
  98 T0* CastObject(T1* apiObject)
  99 {
 100   return static_cast<T0*>(apiObject);
 101 }
 102
 103 // Maximum size of texture upload buffer.
 104 const uint32_t TEXTURE_UPLOAD_MAX_BUFER_SIZE_MB = 1;
 105
 106 } // namespace
 107
 108 EglGraphicsController::~EglGraphicsController() = default;
 109
 110 void EglGraphicsController::InitializeGLES(Integration::GlAbstraction& glAbstraction)
 111 {
 112   DALI_LOG_RELEASE_INFO("Initializing New Graphics Controller #1\n");
 113   mGlAbstraction  = &glAbstraction;
 114   mContext        = std::make_unique<GLES::Context>(*this);
 115   mCurrentContext = mContext.get();
 116 }
 117
 118 void EglGraphicsController::Initialize(Integration::GraphicsSyncAbstraction&    syncImplementation,
 119                                        Integration::GlContextHelperAbstraction& glContextHelperAbstraction,
 120                                        Internal::Adaptor::GraphicsInterface&    graphicsInterface)
 121 {
 122   DALI_LOG_RELEASE_INFO("Initializing New Graphics Controller #2\n");
 123   auto* syncImplPtr = static_cast<Internal::Adaptor::EglSyncImplementation*>(&syncImplementation);
 124
 125   mEglSyncImplementation      = syncImplPtr;
 126   mGlContextHelperAbstraction = &glContextHelperAbstraction;
 127   mGraphics                   = &graphicsInterface;
 128 }
 129
 130 void EglGraphicsController::SubmitCommandBuffers(const SubmitInfo& submitInfo)
 131 {
 132   for(auto& cmdbuf : submitInfo.cmdBuffer)
 133   {
 134     // Push command buffers
 135     mCommandQueue.push(static_cast<GLES::CommandBuffer*>(cmdbuf));
 136   }
 137
 138   // If flush bit set, flush all pending tasks
 139   if(submitInfo.flags & (0 | SubmitFlagBits::FLUSH))
 140   {
 141     Flush();
 142   }
 143 }
 144
 145 void EglGraphicsController::PresentRenderTarget(RenderTarget* renderTarget)
 146 {
 147   GLES::CommandBuffer* presentCommandBuffer{nullptr};
 148   if(mPresentationCommandBuffers.empty())
 149   {
 150     CommandBufferCreateInfo info;
 151     info.SetLevel(CommandBufferLevel::PRIMARY);
 152     info.fixedCapacity   = 1; // only one command
 153     presentCommandBuffer = new GLES::CommandBuffer(info, *this);
 154   }
 155   else
 156   {
 157     presentCommandBuffer = const_cast<GLES::CommandBuffer*>(mPresentationCommandBuffers.front());
 158     presentCommandBuffer->Reset();
 159     mPresentationCommandBuffers.pop();
 160   }
 161   presentCommandBuffer->PresentRenderTarget(static_cast<GLES::RenderTarget*>(renderTarget));
 162   SubmitInfo submitInfo;
 163   submitInfo.cmdBuffer = {presentCommandBuffer};
 164   submitInfo.flags     = 0 | SubmitFlagBits::FLUSH;
 165   SubmitCommandBuffers(submitInfo);
 166 }
 167
 168 void EglGraphicsController::ResolvePresentRenderTarget(GLES::RenderTarget* renderTarget)
 169 {
 170   mCurrentContext->InvalidateDepthStencilBuffers();
 171
 172   auto* rt = static_cast<GLES::RenderTarget*>(renderTarget);
 173   if(rt->GetCreateInfo().surface)
 174   {
 175     auto* surfaceInterface = reinterpret_cast<Dali::RenderSurfaceInterface*>(rt->GetCreateInfo().surface);
 176     surfaceInterface->MakeContextCurrent();
 177     surfaceInterface->PostRender();
 178   }
 179 }
 180
 181 Integration::GlAbstraction& EglGraphicsController::GetGlAbstraction()
 182 {
 183   DALI_ASSERT_DEBUG(mGlAbstraction && "Graphics controller not initialized");
 184   return *mGlAbstraction;
 185 }
 186
 187 Integration::GlContextHelperAbstraction& EglGraphicsController::GetGlContextHelperAbstraction()
 188 {
 189   DALI_ASSERT_DEBUG(mGlContextHelperAbstraction && "Graphics controller not initialized");
 190   return *mGlContextHelperAbstraction;
 191 }
 192
 193 Internal::Adaptor::EglSyncImplementation& EglGraphicsController::GetEglSyncImplementation()
 194 {
 195   DALI_ASSERT_DEBUG(mEglSyncImplementation && "Sync implementation not initialized");
 196   return *mEglSyncImplementation;
 197 }
 198
 199 Graphics::UniquePtr<CommandBuffer> EglGraphicsController::CreateCommandBuffer(
 200   const CommandBufferCreateInfo&       commandBufferCreateInfo,
 201   Graphics::UniquePtr<CommandBuffer>&& oldCommandBuffer)
 202 {
 203   return NewObject<GLES::CommandBuffer>(commandBufferCreateInfo, *this, std::move(oldCommandBuffer));
 204 }
 205
 206 Graphics::UniquePtr<RenderPass> EglGraphicsController::CreateRenderPass(const RenderPassCreateInfo& renderPassCreateInfo, Graphics::UniquePtr<RenderPass>&& oldRenderPass)
 207 {
 208   return NewObject<GLES::RenderPass>(renderPassCreateInfo, *this, std::move(oldRenderPass));
 209 }
 210
 211 Graphics::UniquePtr<Texture>
 212 EglGraphicsController::CreateTexture(const TextureCreateInfo& textureCreateInfo, Graphics::UniquePtr<Texture>&& oldTexture)
 213 {
 214   return NewObject<GLES::Texture>(textureCreateInfo, *this, std::move(oldTexture));
 215 }
 216
 217 Graphics::UniquePtr<Buffer> EglGraphicsController::CreateBuffer(
 218   const BufferCreateInfo& bufferCreateInfo, Graphics::UniquePtr<Buffer>&& oldBuffer)
 219 {
 220   return NewObject<GLES::Buffer>(bufferCreateInfo, *this, std::move(oldBuffer));
 221 }
 222
 223 Graphics::UniquePtr<Framebuffer> EglGraphicsController::CreateFramebuffer(
 224   const FramebufferCreateInfo& framebufferCreateInfo, Graphics::UniquePtr<Framebuffer>&& oldFramebuffer)
 225 {
 226   return NewObject<GLES::Framebuffer>(framebufferCreateInfo, *this, std::move(oldFramebuffer));
 227 }
 228
 229 Graphics::UniquePtr<Pipeline> EglGraphicsController::CreatePipeline(
 230   const PipelineCreateInfo& pipelineCreateInfo, Graphics::UniquePtr<Graphics::Pipeline>&& oldPipeline)
 231 {
 232   // Create pipeline cache if needed
 233   if(!mPipelineCache)
 234   {
 235     mPipelineCache = std::make_unique<GLES::PipelineCache>(*this);
 236   }
 237
 238   return mPipelineCache->GetPipeline(pipelineCreateInfo, std::move(oldPipeline));
 239 }
 240
 241 Graphics::UniquePtr<Program> EglGraphicsController::CreateProgram(
 242   const ProgramCreateInfo& programCreateInfo, UniquePtr<Program>&& oldProgram)
 243 {
 244   // Create program cache if needed
 245   if(!mPipelineCache)
 246   {
 247     mPipelineCache = std::make_unique<GLES::PipelineCache>(*this);
 248   }
 249
 250   return mPipelineCache->GetProgram(programCreateInfo, std::move(oldProgram));
 251 }
 252
 253 Graphics::UniquePtr<Shader> EglGraphicsController::CreateShader(const ShaderCreateInfo& shaderCreateInfo, Graphics::UniquePtr<Shader>&& oldShader)
 254 {
 255   return NewObject<GLES::Shader>(shaderCreateInfo, *this, std::move(oldShader));
 256 }
 257
 258 Graphics::UniquePtr<Sampler> EglGraphicsController::CreateSampler(const SamplerCreateInfo& samplerCreateInfo, Graphics::UniquePtr<Sampler>&& oldSampler)
 259 {
 260   return NewObject<GLES::Sampler>(samplerCreateInfo, *this, std::move(oldSampler));
 261 }
 262
 263 Graphics::UniquePtr<RenderTarget> EglGraphicsController::CreateRenderTarget(const RenderTargetCreateInfo& renderTargetCreateInfo, Graphics::UniquePtr<RenderTarget>&& oldRenderTarget)
 264 {
 265   return NewObject<GLES::RenderTarget>(renderTargetCreateInfo, *this, std::move(oldRenderTarget));
 266 }
 267
 268 Graphics::UniquePtr<SyncObject> EglGraphicsController::CreateSyncObject(const SyncObjectCreateInfo& syncObjectCreateInfo,
 269                                                                         UniquePtr<SyncObject>&&     oldSyncObject)
 270 {
 271   if(GetGLESVersion() < GLES::GLESVersion::GLES_30)
 272   {
 273     return NewObject<EGL::SyncObject>(syncObjectCreateInfo, *this, std::move(oldSyncObject));
 274   }
 275   else
 276   {
 277     return NewObject<GLES::SyncObject>(syncObjectCreateInfo, *this, std::move(oldSyncObject));
 278   }
 279 }
 280
 281 const Graphics::Reflection& EglGraphicsController::GetProgramReflection(const Graphics::Program& program)
 282 {
 283   return static_cast<const Graphics::GLES::Program*>(&program)->GetReflection();
 284 }
 285
 286 void EglGraphicsController::CreateSurfaceContext(Dali::RenderSurfaceInterface* surface)
 287 {
 288   std::unique_ptr<GLES::Context> context = std::make_unique<GLES::Context>(*this);
 289   mSurfaceContexts.push_back(std::move(std::make_pair(surface, std::move(context))));
 290 }
 291
 292 void EglGraphicsController::DeleteSurfaceContext(Dali::RenderSurfaceInterface* surface)
 293 {
 294   mSurfaceContexts.erase(std::remove_if(
 295                            mSurfaceContexts.begin(), mSurfaceContexts.end(), [surface](SurfaceContextPair& iter) { return surface == iter.first; }),
 296                          mSurfaceContexts.end());
 297 }
 298
 299 void EglGraphicsController::ActivateResourceContext()
 300 {
 301   mCurrentContext = mContext.get();
 302   mCurrentContext->GlContextCreated();
 303 }
 304
 305 void EglGraphicsController::ActivateSurfaceContext(Dali::RenderSurfaceInterface* surface)
 306 {
 307   if(surface && mGraphics->IsResourceContextSupported())
 308   {
 309     auto iter = std::find_if(mSurfaceContexts.begin(), mSurfaceContexts.end(), [surface](SurfaceContextPair& iter) {
 310       return (iter.first == surface);
 311     });
 312
 313     if(iter != mSurfaceContexts.end())
 314     {
 315       mCurrentContext = iter->second.get();
 316       mCurrentContext->GlContextCreated();
 317     }
 318   }
 319 }
 320
 321 void EglGraphicsController::AddTexture(GLES::Texture& texture)
 322 {
 323   // Assuming we are on the correct context
 324   mCreateTextureQueue.push(&texture);
 325 }
 326
 327 void EglGraphicsController::AddBuffer(GLES::Buffer& buffer)
 328 {
 329   // Assuming we are on the correct context
 330   mCreateBufferQueue.push(&buffer);
 331 }
 332
 333 void EglGraphicsController::AddFramebuffer(GLES::Framebuffer& framebuffer)
 334 {
 335   // Assuming we are on the correct context
 336   mCreateFramebufferQueue.push(&framebuffer);
 337 }
 338
 339 void EglGraphicsController::ProcessDiscardQueues()
 340 {
 341   // Process textures
 342   ProcessDiscardQueue<GLES::Texture>(mDiscardTextureQueue);
 343
 344   // Process buffers
 345   ProcessDiscardQueue<GLES::Buffer>(mDiscardBufferQueue);
 346
 347   // Process Framebuffers
 348   ProcessDiscardQueue<GLES::Framebuffer>(mDiscardFramebufferQueue);
 349
 350   // Process pipelines
 351   ProcessDiscardQueue(mDiscardPipelineQueue);
 352
 353   // Process programs
 354   ProcessDiscardQueue<GLES::Program>(mDiscardProgramQueue);
 355
 356   // Process shaders
 357   ProcessDiscardQueue<GLES::Shader>(mDiscardShaderQueue);
 358
 359   // Process samplers
 360   ProcessDiscardQueue<GLES::Sampler>(mDiscardSamplerQueue);
 361
 362   // Process command buffers
 363   ProcessDiscardQueue<GLES::CommandBuffer>(mDiscardCommandBufferQueue);
 364 }
 365
 366 void EglGraphicsController::ProcessCreateQueues()
 367 {
 368   // Process textures
 369   ProcessCreateQueue(mCreateTextureQueue);
 370
 371   // Process buffers
 372   ProcessCreateQueue(mCreateBufferQueue);
 373
 374   // Process framebuffers
 375   ProcessCreateQueue(mCreateFramebufferQueue);
 376 }
 377
 378 void EglGraphicsController::ProcessCommandBuffer(const GLES::CommandBuffer& commandBuffer)
 379 {
 380   auto       count    = 0u;
 381   const auto commands = commandBuffer.GetCommands(count);
 382   for(auto i = 0u; i < count; ++i)
 383   {
 384     auto& cmd = commands[i];
 385     // process command
 386     switch(cmd.type)
 387     {
 388       case GLES::CommandType::FLUSH:
 389       {
 390         // Nothing to do here
 391         break;
 392       }
 393       case GLES::CommandType::BIND_TEXTURES:
 394       {
 395         mCurrentContext->BindTextures(cmd.bindTextures.textureBindings.Ptr(), cmd.bindTextures.textureBindingsCount);
 396         break;
 397       }
 398       case GLES::CommandType::BIND_VERTEX_BUFFERS:
 399       {
 400         auto bindings = cmd.bindVertexBuffers.vertexBufferBindings.Ptr();
 401         mCurrentContext->BindVertexBuffers(bindings, cmd.bindVertexBuffers.vertexBufferBindingsCount);
 402         break;
 403       }
 404       case GLES::CommandType::BIND_UNIFORM_BUFFER:
 405       {
 406         auto& bindings = cmd.bindUniformBuffers;
 407         mCurrentContext->BindUniformBuffers(bindings.uniformBufferBindingsCount ? bindings.uniformBufferBindings.Ptr() : nullptr, bindings.uniformBufferBindingsCount, bindings.standaloneUniformsBufferBinding);
 408         break;
 409       }
 410       case GLES::CommandType::BIND_INDEX_BUFFER:
 411       {
 412         mCurrentContext->BindIndexBuffer(cmd.bindIndexBuffer);
 413         break;
 414       }
 415       case GLES::CommandType::BIND_SAMPLERS:
 416       {
 417         break;
 418       }
 419       case GLES::CommandType::BIND_PIPELINE:
 420       {
 421         auto pipeline = static_cast<const GLES::Pipeline*>(cmd.bindPipeline.pipeline);
 422         mCurrentContext->BindPipeline(pipeline);
 423         break;
 424       }
 425       case GLES::CommandType::DRAW:
 426       {
 427         mCurrentContext->Flush(false, cmd.draw);
 428         break;
 429       }
 430       case GLES::CommandType::DRAW_INDEXED:
 431       {
 432         mCurrentContext->Flush(false, cmd.draw);
 433         break;
 434       }
 435       case GLES::CommandType::DRAW_INDEXED_INDIRECT:
 436       {
 437         mCurrentContext->Flush(false, cmd.draw);
 438         break;
 439       }
 440       case GLES::CommandType::SET_SCISSOR: // @todo Consider correcting for orientation here?
 441       {
 442         mGlAbstraction->Scissor(cmd.scissor.region.x, cmd.scissor.region.y, cmd.scissor.region.width, cmd.scissor.region.height);
 443         break;
 444       }
 445       case GLES::CommandType::SET_SCISSOR_TEST:
 446       {
 447         mCurrentContext->SetScissorTestEnabled(cmd.scissorTest.enable);
 448         break;
 449       }
 450       case GLES::CommandType::SET_VIEWPORT: // @todo Consider correcting for orientation here?
 451       {
 452         mGlAbstraction->Viewport(cmd.viewport.region.x, cmd.viewport.region.y, cmd.viewport.region.width, cmd.viewport.region.height);
 453         break;
 454       }
 455
 456       case GLES::CommandType::SET_COLOR_MASK:
 457       {
 458         mCurrentContext->ColorMask(cmd.colorMask.enabled);
 459         break;
 460       }
 461       case GLES::CommandType::CLEAR_STENCIL_BUFFER:
 462       {
 463         mCurrentContext->ClearStencilBuffer();
 464         break;
 465       }
 466       case GLES::CommandType::CLEAR_DEPTH_BUFFER:
 467       {
 468         mCurrentContext->ClearDepthBuffer();
 469         break;
 470       }
 471
 472       case GLES::CommandType::SET_STENCIL_TEST_ENABLE:
 473       {
 474         mCurrentContext->SetStencilTestEnable(cmd.stencilTest.enabled);
 475         break;
 476       }
 477
 478       case GLES::CommandType::SET_STENCIL_FUNC:
 479       {
 480         mCurrentContext->StencilFunc(cmd.stencilFunc.compareOp,
 481                                      cmd.stencilFunc.reference,
 482                                      cmd.stencilFunc.compareMask);
 483         break;
 484       }
 485
 486       case GLES::CommandType::SET_STENCIL_WRITE_MASK:
 487       {
 488         mCurrentContext->StencilMask(cmd.stencilWriteMask.mask);
 489         break;
 490       }
 491
 492       case GLES::CommandType::SET_STENCIL_OP:
 493       {
 494         mCurrentContext->StencilOp(cmd.stencilOp.failOp,
 495                                    cmd.stencilOp.depthFailOp,
 496                                    cmd.stencilOp.passOp);
 497         break;
 498       }
 499
 500       case GLES::CommandType::SET_DEPTH_COMPARE_OP:
 501       {
 502         mCurrentContext->SetDepthCompareOp(cmd.depth.compareOp);
 503         break;
 504       }
 505       case GLES::CommandType::SET_DEPTH_TEST_ENABLE:
 506       {
 507         mCurrentContext->SetDepthTestEnable(cmd.depth.testEnabled);
 508         break;
 509       }
 510       case GLES::CommandType::SET_DEPTH_WRITE_ENABLE:
 511       {
 512         mCurrentContext->SetDepthWriteEnable(cmd.depth.writeEnabled);
 513         break;
 514       }
 515
 516       case GLES::CommandType::BEGIN_RENDERPASS:
 517       {
 518         auto&       renderTarget = *cmd.beginRenderPass.renderTarget;
 519         const auto& targetInfo   = renderTarget.GetCreateInfo();
 520
 521         if(targetInfo.surface)
 522         {
 523           // switch to surface context
 524           mGraphics->ActivateSurfaceContext(static_cast<Dali::RenderSurfaceInterface*>(targetInfo.surface));
 525         }
 526         else if(targetInfo.framebuffer)
 527         {
 528           // switch to resource context
 529           mGraphics->ActivateResourceContext();
 530         }
 531
 532         mCurrentContext->BeginRenderPass(cmd.beginRenderPass);
 533         break;
 534       }
 535       case GLES::CommandType::END_RENDERPASS:
 536       {
 537         mCurrentContext->EndRenderPass();
 538
 539         auto syncObject = const_cast<GLES::SyncObject*>(static_cast<const GLES::SyncObject*>(cmd.endRenderPass.syncObject));
 540         if(syncObject)
 541         {
 542           syncObject->InitializeResource();
 543         }
 544         break;
 545       }
 546       case GLES::CommandType::PRESENT_RENDER_TARGET:
 547       {
 548         ResolvePresentRenderTarget(cmd.presentRenderTarget.targetToPresent);
 549
 550         // The command buffer will be pushed into the queue of presentation command buffers
 551         // for further reuse.
 552         if(commandBuffer.GetCreateInfo().fixedCapacity == 1)
 553         {
 554           mPresentationCommandBuffers.push(&commandBuffer);
 555         }
 556         break;
 557       }
 558       case GLES::CommandType::EXECUTE_COMMAND_BUFFERS:
 559       {
 560         // Process secondary command buffers
 561         // todo: check validity of the secondaries
 562         //       there are operations which are illigal to be done
 563         //       within secondaries.
 564         auto buffers = cmd.executeCommandBuffers.buffers.Ptr();
 565         for(auto j = 0u; j < cmd.executeCommandBuffers.buffersCount; ++j)
 566         {
 567           auto& buf = buffers[j];
 568           ProcessCommandBuffer(*static_cast<const GLES::CommandBuffer*>(buf));
 569         }
 570         break;
 571       }
 572     }
 573   }
 574 }
 575
 576 void EglGraphicsController::ProcessCommandQueues()
 577 {
 578   DUMP_FRAME_START();
 579
 580   while(!mCommandQueue.empty())
 581   {
 582     auto cmdBuf = mCommandQueue.front();
 583     mCommandQueue.pop();
 584     DUMP_FRAME_COMMAND_BUFFER(cmdBuf);
 585     ProcessCommandBuffer(*cmdBuf);
 586   }
 587
 588   DUMP_FRAME_END();
 589 }
 590
 591 void EglGraphicsController::ProcessTextureUpdateQueue()
 592 {
 593   while(!mTextureUpdateRequests.empty())
 594   {
 595     TextureUpdateRequest& request = mTextureUpdateRequests.front();
 596
 597     auto& info   = request.first;
 598     auto& source = request.second;
 599
 600     if(source.sourceType == Graphics::TextureUpdateSourceInfo::Type::MEMORY)
 601     {
 602       // GPU memory must be already allocated.
 603
 604       // Check if it needs conversion
 605       auto*       texture            = static_cast<GLES::Texture*>(info.dstTexture);
 606       const auto& createInfo         = texture->GetCreateInfo();
 607       auto        srcFormat          = GLES::GLTextureFormatType(info.srcFormat).format;
 608       auto        srcType            = GLES::GLTextureFormatType(info.srcFormat).type;
 609       auto        destInternalFormat = GLES::GLTextureFormatType(createInfo.format).internalFormat;
 610       auto        destFormat         = GLES::GLTextureFormatType(createInfo.format).format;
 611
 612       // From render-texture.cpp
 613       const bool isSubImage(info.dstOffset2D.x != 0 || info.dstOffset2D.y != 0 ||
 614                             info.srcExtent2D.width != (createInfo.size.width / (1 << info.level)) ||
 615                             info.srcExtent2D.height != (createInfo.size.height / (1 << info.level)));
 616
 617       auto*                sourceBuffer = reinterpret_cast<uint8_t*>(source.memorySource.memory);
 618       std::vector<uint8_t> tempBuffer;
 619       if(mGlAbstraction->TextureRequiresConverting(srcFormat, destFormat, isSubImage))
 620       {
 621         // Convert RGB to RGBA if necessary.
 622         texture->TryConvertPixelData(source.memorySource.memory, info.srcFormat, createInfo.format, info.srcSize, info.srcExtent2D.width, info.srcExtent2D.height, tempBuffer);
 623         sourceBuffer = &tempBuffer[0];
 624         srcFormat    = destFormat;
 625         srcType      = GLES::GLTextureFormatType(createInfo.format).type;
 626       }
 627
 628       // Calculate the maximum mipmap level for the texture
 629       texture->SetMaxMipMapLevel(std::max(texture->GetMaxMipMapLevel(), info.level));
 630
 631       GLenum bindTarget{GL_TEXTURE_2D};
 632       GLenum target{GL_TEXTURE_2D};
 633
 634       if(createInfo.textureType == Graphics::TextureType::TEXTURE_CUBEMAP)
 635       {
 636         bindTarget = GL_TEXTURE_CUBE_MAP;
 637         target     = GL_TEXTURE_CUBE_MAP_POSITIVE_X + info.layer;
 638       }
 639
 640       mGlAbstraction->PixelStorei(GL_UNPACK_ALIGNMENT, 1);
 641       mCurrentContext->BindTexture(bindTarget, texture->GetTextureTypeId(), texture->GetGLTexture());
 642
 643       if(!isSubImage)
 644       {
 645         if(!texture->IsCompressed())
 646         {
 647           mGlAbstraction->TexImage2D(target,
 648                                      info.level,
 649                                      destInternalFormat,
 650                                      info.srcExtent2D.width,
 651                                      info.srcExtent2D.height,
 652                                      0,
 653                                      srcFormat,
 654                                      srcType,
 655                                      sourceBuffer);
 656         }
 657         else
 658         {
 659           mGlAbstraction->CompressedTexImage2D(target,
 660                                                info.level,
 661                                                destInternalFormat,
 662                                                info.srcExtent2D.width,
 663                                                info.srcExtent2D.height,
 664                                                0,
 665                                                info.srcSize,
 666                                                sourceBuffer);
 667         }
 668       }
 669       else
 670       {
 671         if(!texture->IsCompressed())
 672         {
 673           mGlAbstraction->TexSubImage2D(target,
 674                                         info.level,
 675                                         info.dstOffset2D.x,
 676                                         info.dstOffset2D.y,
 677                                         info.srcExtent2D.width,
 678                                         info.srcExtent2D.height,
 679                                         srcFormat,
 680                                         srcType,
 681                                         sourceBuffer);
 682         }
 683         else
 684         {
 685           mGlAbstraction->CompressedTexSubImage2D(target,
 686                                                   info.level,
 687                                                   info.dstOffset2D.x,
 688                                                   info.dstOffset2D.y,
 689                                                   info.srcExtent2D.width,
 690                                                   info.srcExtent2D.height,
 691                                                   srcFormat,
 692                                                   info.srcSize,
 693                                                   sourceBuffer);
 694         }
 695       }
 696       // free staging memory
 697       free(source.memorySource.memory);
 698     }
 699     else
 700     {
 701       // TODO: other sources
 702     }
 703
 704     mTextureUpdateRequests.pop();
 705   }
 706 }
 707
 708 void EglGraphicsController::UpdateTextures(const std::vector<TextureUpdateInfo>&       updateInfoList,
 709                                            const std::vector<TextureUpdateSourceInfo>& sourceList)
 710 {
 711   // Store updates
 712   for(auto& info : updateInfoList)
 713   {
 714     mTextureUpdateRequests.push(std::make_pair(info, sourceList[info.srcReference]));
 715     auto& pair = mTextureUpdateRequests.back();
 716     switch(pair.second.sourceType)
 717     {
 718       case Graphics::TextureUpdateSourceInfo::Type::MEMORY:
 719       {
 720         auto& info   = pair.first;
 721         auto& source = pair.second;
 722
 723         // allocate staging memory and copy the data
 724         // TODO: using PBO with GLES3, this is just naive
 725         // oldschool way
 726
 727         char* stagingBuffer = reinterpret_cast<char*>(malloc(info.srcSize));
 728         std::copy(&reinterpret_cast<char*>(source.memorySource.memory)[info.srcOffset],
 729                   reinterpret_cast<char*>(source.memorySource.memory) + info.srcSize,
 730                   stagingBuffer);
 731
 732         mTextureUploadTotalCPUMemoryUsed += info.srcSize;
 733
 734         // store staging buffer
 735         source.memorySource.memory = stagingBuffer;
 736         break;
 737       }
 738       case Graphics::TextureUpdateSourceInfo::Type::BUFFER:
 739       {
 740         // TODO, with PBO support
 741         break;
 742       }
 743       case Graphics::TextureUpdateSourceInfo::Type::TEXTURE:
 744       {
 745         // TODO texture 2 texture in-GPU copy
 746         break;
 747       }
 748     }
 749   }
 750
 751   // If upload buffer exceeds maximum size, flush.
 752   if(mTextureUploadTotalCPUMemoryUsed > TEXTURE_UPLOAD_MAX_BUFER_SIZE_MB * 1024)
 753   {
 754     Flush();
 755     mTextureUploadTotalCPUMemoryUsed = 0;
 756   }
 757 }
 758
 759 void EglGraphicsController::ProcessTextureMipmapGenerationQueue()
 760 {
 761   while(!mTextureMipmapGenerationRequests.empty())
 762   {
 763     auto* texture = mTextureMipmapGenerationRequests.front();
 764
 765     mCurrentContext->BindTexture(texture->GetGlTarget(), texture->GetTextureTypeId(), texture->GetGLTexture());
 766     mCurrentContext->GenerateMipmap(texture->GetGlTarget());
 767
 768     mTextureMipmapGenerationRequests.pop();
 769   }
 770 }
 771
 772 void EglGraphicsController::GenerateTextureMipmaps(const Graphics::Texture& texture)
 773 {
 774   mTextureMipmapGenerationRequests.push(static_cast<const GLES::Texture*>(&texture));
 775 }
 776
 777 Graphics::UniquePtr<Memory> EglGraphicsController::MapBufferRange(const MapBufferInfo& mapInfo)
 778 {
 779   mGraphics->ActivateResourceContext();
 780
 781   // Mapping buffer requires the object to be created NOW
 782   // Workaround - flush now, otherwise there will be given a staging buffer
 783   // in case when the buffer is not there yet
 784   ProcessCreateQueues();
 785
 786   if(GetGLESVersion() < GLES::GLESVersion::GLES_30)
 787   {
 788     return Graphics::UniquePtr<Memory>(new GLES::Memory2(mapInfo, *this));
 789   }
 790   else
 791   {
 792     return Graphics::UniquePtr<Memory>(new GLES::Memory3(mapInfo, *this));
 793   }
 794 }
 795
 796 bool EglGraphicsController::GetProgramParameter(Graphics::Program& program, uint32_t parameterId, void* outData)
 797 {
 798   return static_cast<GLES::Program*>(&program)->GetImplementation()->GetParameter(parameterId, outData);
 799 }
 800
 801 GLES::PipelineCache& EglGraphicsController::GetPipelineCache() const
 802 {
 803   return *mPipelineCache;
 804 }
 805
 806 } // namespace Dali::Graphics