Merge "Added recycling of Graphics resources." into devel/master
[platform/core/uifw/dali-adaptor.git] / dali / internal / graphics / gles-impl / egl-graphics-controller.cpp
1 /*
2  * Copyright (c) 2023 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 // EXTERNAL INCLUDES
21 #include <dali/public-api/common/dali-common.h>
22
23 // INTERNAL INCLUDES
24 #include <dali/integration-api/adaptor-framework/render-surface-interface.h>
25 #include <dali/integration-api/debug.h>
26 #include <dali/integration-api/gl-abstraction.h>
27 #include <dali/integration-api/gl-defines.h>
28 #include <dali/integration-api/graphics-sync-abstraction.h>
29 #include <dali/integration-api/pixel-data-integ.h>
30 #include <dali/internal/graphics/gles-impl/egl-sync-object.h>
31 #include <dali/internal/graphics/gles-impl/gles-graphics-command-buffer.h>
32 #include <dali/internal/graphics/gles-impl/gles-graphics-pipeline.h>
33 #include <dali/internal/graphics/gles-impl/gles-graphics-program.h>
34 #include <dali/internal/graphics/gles-impl/gles-graphics-render-pass.h>
35 #include <dali/internal/graphics/gles-impl/gles-graphics-render-target.h>
36 #include <dali/internal/graphics/gles-impl/gles-graphics-shader.h>
37 #include <dali/internal/graphics/gles-impl/gles-graphics-texture.h>
38 #include <dali/internal/graphics/gles-impl/gles-graphics-types.h>
39 #include <dali/internal/graphics/gles-impl/gles-sync-object.h>
40 #include <dali/internal/graphics/gles-impl/gles3-graphics-memory.h>
41 #include <dali/internal/graphics/gles/egl-sync-implementation.h>
42
43 #include <dali/internal/graphics/gles/egl-graphics.h>
44
45 #include <any>
46
47 // Uncomment the following define to turn on frame dumping
48 //#define ENABLE_COMMAND_BUFFER_FRAME_DUMP 1
49 #include <dali/internal/graphics/gles-impl/egl-graphics-controller-debug.h>
50 DUMP_FRAME_INIT();
51
52 namespace Dali::Graphics
53 {
54 namespace
55 {
56 /**
57  * @brief Custom deleter for all Graphics objects created
58  * with use of the Controller.
59  *
60  * When Graphics object dies the unique pointer (Graphics::UniquePtr)
61  * doesn't destroy it directly but passes the ownership back
62  * to the Controller. The GLESDeleter is responsible for passing
63  * the object to the discard queue (by calling Resource::DiscardResource()).
64  */
65 template<typename T>
66 struct GLESDeleter
67 {
68   GLESDeleter() = default;
69
70   void operator()(T* object)
71   {
72     // Discard resource (add it to discard queue)
73     object->DiscardResource();
74   }
75 };
76
77 /**
78  * @brief Helper function allocating graphics object
79  *
80  * @param[in] info Create info structure
81  * @param[in] controller Controller object
82  * @param[out] out Unique pointer to the return object
83  */
84 template<class GLESType, class GfxCreateInfo, class T>
85 auto NewObject(const GfxCreateInfo& info, EglGraphicsController& controller, T&& oldObject)
86 {
87   // Use allocator
88   using Type = typename T::element_type;
89   using UPtr = Graphics::UniquePtr<Type>;
90   if(info.allocationCallbacks)
91   {
92     auto* memory = info.allocationCallbacks->allocCallback(
93       sizeof(GLESType),
94       0,
95       info.allocationCallbacks->userData);
96     return UPtr(new(memory) GLESType(info, controller), GLESDeleter<GLESType>());
97   }
98   else // Use standard allocator
99   {
100     // We are given all object for recycling
101     if(oldObject)
102     {
103       auto reusedObject = oldObject.release();
104       // If succeeded, attach the object to the unique_ptr and return it back
105       if(static_cast<GLESType*>(reusedObject)->TryRecycle(info, controller))
106       {
107         return UPtr(reusedObject, GLESDeleter<GLESType>());
108       }
109       else
110       {
111         // can't reuse so kill object by giving it back to original
112         // unique pointer.
113         oldObject.reset(reusedObject);
114       }
115     }
116
117     // Create brand new object
118     return UPtr(new GLESType(info, controller), GLESDeleter<GLESType>());
119   }
120 }
121
122 template<class T0, class T1>
123 T0* CastObject(T1* apiObject)
124 {
125   return static_cast<T0*>(apiObject);
126 }
127
128 // Maximum size of texture upload buffer.
129 const uint32_t TEXTURE_UPLOAD_MAX_BUFER_SIZE_MB = 1;
130
131 } // namespace
132
133 EglGraphicsController::EglGraphicsController()
134 : mTextureDependencyChecker(*this),
135   mSyncPool(*this)
136 {
137 }
138
139 EglGraphicsController::~EglGraphicsController()
140 {
141   while(!mPresentationCommandBuffers.empty())
142   {
143     auto presentCommandBuffer = const_cast<GLES::CommandBuffer*>(mPresentationCommandBuffers.front());
144     delete presentCommandBuffer;
145     mPresentationCommandBuffers.pop();
146   }
147 }
148
149 void EglGraphicsController::InitializeGLES(Integration::GlAbstraction& glAbstraction)
150 {
151   DALI_LOG_RELEASE_INFO("Initializing Graphics Controller Phase 1\n");
152   mGlAbstraction  = &glAbstraction;
153   mContext        = std::make_unique<GLES::Context>(*this);
154   mCurrentContext = mContext.get();
155 }
156
157 void EglGraphicsController::Initialize(Integration::GraphicsSyncAbstraction&    syncImplementation,
158                                        Integration::GlContextHelperAbstraction& glContextHelperAbstraction,
159                                        Internal::Adaptor::GraphicsInterface&    graphicsInterface)
160 {
161   DALI_LOG_RELEASE_INFO("Initializing Graphics Controller Phase 2\n");
162   auto* syncImplPtr = static_cast<Internal::Adaptor::EglSyncImplementation*>(&syncImplementation);
163
164   mEglSyncImplementation      = syncImplPtr;
165   mGlContextHelperAbstraction = &glContextHelperAbstraction;
166   mGraphics                   = &graphicsInterface;
167 }
168
169 void EglGraphicsController::FrameStart()
170 {
171   mCapacity = 0; // Reset the command buffer capacity at the start of the frame.
172 }
173
174 void EglGraphicsController::SubmitCommandBuffers(const SubmitInfo& submitInfo)
175 {
176   for(auto& cmdbuf : submitInfo.cmdBuffer)
177   {
178     // Push command buffers
179     auto* commandBuffer = static_cast<GLES::CommandBuffer*>(cmdbuf);
180     mCapacity += commandBuffer->GetCapacity();
181     mCommandQueue.push(commandBuffer);
182   }
183
184   // If flush bit set, flush all pending tasks
185   if(submitInfo.flags & (0 | SubmitFlagBits::FLUSH))
186   {
187     Flush();
188   }
189 }
190
191 void EglGraphicsController::WaitIdle()
192 {
193   Flush();
194 }
195
196 void EglGraphicsController::PresentRenderTarget(RenderTarget* renderTarget)
197 {
198   GLES::CommandBuffer* presentCommandBuffer{nullptr};
199   if(mPresentationCommandBuffers.empty())
200   {
201     CommandBufferCreateInfo info;
202     info.SetLevel(CommandBufferLevel::PRIMARY);
203     info.fixedCapacity   = 1; // only one command
204     presentCommandBuffer = new GLES::CommandBuffer(info, *this);
205   }
206   else
207   {
208     presentCommandBuffer = const_cast<GLES::CommandBuffer*>(mPresentationCommandBuffers.front());
209     presentCommandBuffer->Reset();
210     mPresentationCommandBuffers.pop();
211   }
212   presentCommandBuffer->PresentRenderTarget(static_cast<GLES::RenderTarget*>(renderTarget));
213   SubmitInfo submitInfo;
214   submitInfo.cmdBuffer = {presentCommandBuffer};
215   submitInfo.flags     = 0 | SubmitFlagBits::FLUSH;
216   SubmitCommandBuffers(submitInfo);
217 }
218
219 void EglGraphicsController::ResolvePresentRenderTarget(GLES::RenderTarget* renderTarget)
220 {
221   mCurrentContext->InvalidateDepthStencilBuffers();
222
223   auto* rt = static_cast<GLES::RenderTarget*>(renderTarget);
224   if(rt->GetCreateInfo().surface)
225   {
226     auto* surfaceInterface = reinterpret_cast<Dali::RenderSurfaceInterface*>(rt->GetCreateInfo().surface);
227     surfaceInterface->MakeContextCurrent();
228     surfaceInterface->PostRender();
229   }
230 }
231
232 void EglGraphicsController::PostRender()
233 {
234   mTextureDependencyChecker.Reset();
235   mSyncPool.AgeSyncObjects();
236 }
237
238 Integration::GlAbstraction& EglGraphicsController::GetGlAbstraction()
239 {
240   DALI_ASSERT_DEBUG(mGlAbstraction && "Graphics controller not initialized");
241   return *mGlAbstraction;
242 }
243
244 Integration::GlContextHelperAbstraction& EglGraphicsController::GetGlContextHelperAbstraction()
245 {
246   DALI_ASSERT_DEBUG(mGlContextHelperAbstraction && "Graphics controller not initialized");
247   return *mGlContextHelperAbstraction;
248 }
249
250 Internal::Adaptor::EglSyncImplementation& EglGraphicsController::GetEglSyncImplementation()
251 {
252   DALI_ASSERT_DEBUG(mEglSyncImplementation && "Sync implementation not initialized");
253   return *mEglSyncImplementation;
254 }
255
256 Graphics::UniquePtr<CommandBuffer> EglGraphicsController::CreateCommandBuffer(
257   const CommandBufferCreateInfo&       commandBufferCreateInfo,
258   Graphics::UniquePtr<CommandBuffer>&& oldCommandBuffer)
259 {
260   return NewObject<GLES::CommandBuffer>(commandBufferCreateInfo, *this, std::move(oldCommandBuffer));
261 }
262
263 Graphics::UniquePtr<RenderPass> EglGraphicsController::CreateRenderPass(const RenderPassCreateInfo& renderPassCreateInfo, Graphics::UniquePtr<RenderPass>&& oldRenderPass)
264 {
265   return NewObject<GLES::RenderPass>(renderPassCreateInfo, *this, std::move(oldRenderPass));
266 }
267
268 Graphics::UniquePtr<Texture>
269 EglGraphicsController::CreateTexture(const TextureCreateInfo& textureCreateInfo, Graphics::UniquePtr<Texture>&& oldTexture)
270 {
271   return NewObject<GLES::Texture>(textureCreateInfo, *this, std::move(oldTexture));
272 }
273
274 Graphics::UniquePtr<Buffer> EglGraphicsController::CreateBuffer(
275   const BufferCreateInfo& bufferCreateInfo, Graphics::UniquePtr<Buffer>&& oldBuffer)
276 {
277   return NewObject<GLES::Buffer>(bufferCreateInfo, *this, std::move(oldBuffer));
278 }
279
280 Graphics::UniquePtr<Framebuffer> EglGraphicsController::CreateFramebuffer(
281   const FramebufferCreateInfo& framebufferCreateInfo, Graphics::UniquePtr<Framebuffer>&& oldFramebuffer)
282 {
283   return NewObject<GLES::Framebuffer>(framebufferCreateInfo, *this, std::move(oldFramebuffer));
284 }
285
286 Graphics::UniquePtr<Pipeline> EglGraphicsController::CreatePipeline(
287   const PipelineCreateInfo& pipelineCreateInfo, Graphics::UniquePtr<Graphics::Pipeline>&& oldPipeline)
288 {
289   // Create pipeline cache if needed
290   if(!mPipelineCache)
291   {
292     mPipelineCache = std::make_unique<GLES::PipelineCache>(*this);
293   }
294
295   return mPipelineCache->GetPipeline(pipelineCreateInfo, std::move(oldPipeline));
296 }
297
298 Graphics::UniquePtr<Program> EglGraphicsController::CreateProgram(
299   const ProgramCreateInfo& programCreateInfo, UniquePtr<Program>&& oldProgram)
300 {
301   // Create program cache if needed
302   if(!mPipelineCache)
303   {
304     mPipelineCache = std::make_unique<GLES::PipelineCache>(*this);
305   }
306
307   return mPipelineCache->GetProgram(programCreateInfo, std::move(oldProgram));
308 }
309
310 Graphics::UniquePtr<Shader> EglGraphicsController::CreateShader(const ShaderCreateInfo& shaderCreateInfo, Graphics::UniquePtr<Shader>&& oldShader)
311 {
312   return NewObject<GLES::Shader>(shaderCreateInfo, *this, std::move(oldShader));
313 }
314
315 Graphics::UniquePtr<Sampler> EglGraphicsController::CreateSampler(const SamplerCreateInfo& samplerCreateInfo, Graphics::UniquePtr<Sampler>&& oldSampler)
316 {
317   return NewObject<GLES::Sampler>(samplerCreateInfo, *this, std::move(oldSampler));
318 }
319
320 Graphics::UniquePtr<RenderTarget> EglGraphicsController::CreateRenderTarget(const RenderTargetCreateInfo& renderTargetCreateInfo, Graphics::UniquePtr<RenderTarget>&& oldRenderTarget)
321 {
322   return NewObject<GLES::RenderTarget>(renderTargetCreateInfo, *this, std::move(oldRenderTarget));
323 }
324
325 Graphics::UniquePtr<SyncObject> EglGraphicsController::CreateSyncObject(const SyncObjectCreateInfo& syncObjectCreateInfo,
326                                                                         UniquePtr<SyncObject>&&     oldSyncObject)
327 {
328   if(GetGLESVersion() < GLES::GLESVersion::GLES_30)
329   {
330     return NewObject<EGL::SyncObject>(syncObjectCreateInfo, *this, std::move(oldSyncObject));
331   }
332   else
333   {
334     return NewObject<GLES::SyncObject>(syncObjectCreateInfo, *this, std::move(oldSyncObject));
335   }
336 }
337
338 TextureProperties EglGraphicsController::GetTextureProperties(const Texture& texture)
339 {
340   const GLES::Texture* glesTexture = static_cast<const GLES::Texture*>(&texture);
341   auto                 createInfo  = glesTexture->GetCreateInfo();
342
343   TextureProperties properties{};
344   properties.format       = createInfo.format;
345   properties.compressed   = glesTexture->IsCompressed();
346   properties.extent2D     = createInfo.size;
347   properties.nativeHandle = glesTexture->GetGLTexture();
348   // TODO: Skip format1, emulated, packed, directWriteAccessEnabled of TextureProperties for now
349
350   return properties;
351 }
352
353 const Graphics::Reflection& EglGraphicsController::GetProgramReflection(const Graphics::Program& program)
354 {
355   return static_cast<const Graphics::GLES::Program*>(&program)->GetReflection();
356 }
357
358 void EglGraphicsController::CreateSurfaceContext(Dali::RenderSurfaceInterface* surface)
359 {
360   std::unique_ptr<GLES::Context> context = std::make_unique<GLES::Context>(*this);
361   mSurfaceContexts.push_back(std::move(std::make_pair(surface, std::move(context))));
362 }
363
364 void EglGraphicsController::DeleteSurfaceContext(Dali::RenderSurfaceInterface* surface)
365 {
366   mSurfaceContexts.erase(std::remove_if(
367                            mSurfaceContexts.begin(), mSurfaceContexts.end(), [surface](SurfaceContextPair& iter) { return surface == iter.first; }),
368                          mSurfaceContexts.end());
369 }
370
371 void EglGraphicsController::ActivateResourceContext()
372 {
373   mCurrentContext = mContext.get();
374   mCurrentContext->GlContextCreated();
375   if(!mSharedContext)
376   {
377     auto eglGraphics = dynamic_cast<Dali::Internal::Adaptor::EglGraphics*>(mGraphics);
378     if(eglGraphics)
379     {
380       mSharedContext = eglGraphics->GetEglImplementation().GetContext();
381     }
382   }
383 }
384
385 void EglGraphicsController::ActivateSurfaceContext(Dali::RenderSurfaceInterface* surface)
386 {
387   if(surface && mGraphics->IsResourceContextSupported())
388   {
389     auto iter = std::find_if(mSurfaceContexts.begin(), mSurfaceContexts.end(), [surface](SurfaceContextPair& iter) { return (iter.first == surface); });
390
391     if(iter != mSurfaceContexts.end())
392     {
393       mCurrentContext = iter->second.get();
394       mCurrentContext->GlContextCreated();
395     }
396   }
397 }
398
399 void EglGraphicsController::AddTexture(GLES::Texture& texture)
400 {
401   // Assuming we are on the correct context
402   mCreateTextureQueue.push(&texture);
403 }
404
405 void EglGraphicsController::AddBuffer(GLES::Buffer& buffer)
406 {
407   // Assuming we are on the correct context
408   mCreateBufferQueue.push(&buffer);
409 }
410
411 void EglGraphicsController::AddFramebuffer(GLES::Framebuffer& framebuffer)
412 {
413   // Assuming we are on the correct context
414   mCreateFramebufferQueue.push(&framebuffer);
415 }
416
417 void EglGraphicsController::ProcessDiscardQueues()
418 {
419   // Process textures
420   ProcessDiscardQueue<GLES::Texture>(mDiscardTextureQueue);
421
422   // Process buffers
423   ProcessDiscardQueue<GLES::Buffer>(mDiscardBufferQueue);
424
425   // Process Framebuffers
426   ProcessDiscardQueue<GLES::Framebuffer>(mDiscardFramebufferQueue);
427
428   // Process RenderPass
429   ProcessDiscardQueue<GLES::RenderPass>(mDiscardRenderPassQueue);
430
431   // Process RenderTarget
432   ProcessDiscardQueue<GLES::RenderTarget>(mDiscardRenderTargetQueue);
433
434   // Process pipelines
435   ProcessDiscardQueue(mDiscardPipelineQueue);
436
437   // Process programs
438   ProcessDiscardQueue<GLES::Program>(mDiscardProgramQueue);
439
440   // Process shaders
441   ProcessDiscardQueue<GLES::Shader>(mDiscardShaderQueue);
442
443   // Process samplers
444   ProcessDiscardQueue<GLES::Sampler>(mDiscardSamplerQueue);
445
446   // Process command buffers
447   ProcessDiscardQueue<GLES::CommandBuffer>(mDiscardCommandBufferQueue);
448 }
449
450 void EglGraphicsController::ProcessCreateQueues()
451 {
452   // Process textures
453   ProcessCreateQueue(mCreateTextureQueue);
454
455   // Process buffers
456   ProcessCreateQueue(mCreateBufferQueue);
457
458   // Process framebuffers
459   ProcessCreateQueue(mCreateFramebufferQueue);
460 }
461
462 void EglGraphicsController::ProcessCommandBuffer(const GLES::CommandBuffer& commandBuffer)
463 {
464   auto       count    = 0u;
465   const auto commands = commandBuffer.GetCommands(count);
466   for(auto i = 0u; i < count; ++i)
467   {
468     auto& cmd = commands[i];
469     // process command
470     switch(cmd.type)
471     {
472       case GLES::CommandType::FLUSH:
473       {
474         // Nothing to do here
475         break;
476       }
477       case GLES::CommandType::BIND_TEXTURES:
478       {
479         mCurrentContext->BindTextures(cmd.bindTextures.textureBindings.Ptr(), cmd.bindTextures.textureBindingsCount);
480         break;
481       }
482       case GLES::CommandType::BIND_VERTEX_BUFFERS:
483       {
484         auto bindings = cmd.bindVertexBuffers.vertexBufferBindings.Ptr();
485         mCurrentContext->BindVertexBuffers(bindings, cmd.bindVertexBuffers.vertexBufferBindingsCount);
486         break;
487       }
488       case GLES::CommandType::BIND_UNIFORM_BUFFER:
489       {
490         auto& bindings = cmd.bindUniformBuffers;
491         mCurrentContext->BindUniformBuffers(bindings.uniformBufferBindingsCount ? bindings.uniformBufferBindings.Ptr() : nullptr, bindings.uniformBufferBindingsCount, bindings.standaloneUniformsBufferBinding);
492         break;
493       }
494       case GLES::CommandType::BIND_INDEX_BUFFER:
495       {
496         mCurrentContext->BindIndexBuffer(cmd.bindIndexBuffer);
497         break;
498       }
499       case GLES::CommandType::BIND_SAMPLERS:
500       {
501         break;
502       }
503       case GLES::CommandType::BIND_PIPELINE:
504       {
505         auto pipeline = static_cast<const GLES::Pipeline*>(cmd.bindPipeline.pipeline);
506         mCurrentContext->BindPipeline(pipeline);
507         break;
508       }
509       case GLES::CommandType::DRAW:
510       {
511         mCurrentContext->Flush(false, cmd.draw, mTextureDependencyChecker);
512         break;
513       }
514       case GLES::CommandType::DRAW_INDEXED:
515       {
516         mCurrentContext->Flush(false, cmd.draw, mTextureDependencyChecker);
517         break;
518       }
519       case GLES::CommandType::DRAW_INDEXED_INDIRECT:
520       {
521         mCurrentContext->Flush(false, cmd.draw, mTextureDependencyChecker);
522         break;
523       }
524       case GLES::CommandType::SET_SCISSOR: // @todo Consider correcting for orientation here?
525       {
526         mGlAbstraction->Scissor(cmd.scissor.region.x, cmd.scissor.region.y, cmd.scissor.region.width, cmd.scissor.region.height);
527         break;
528       }
529       case GLES::CommandType::SET_SCISSOR_TEST:
530       {
531         mCurrentContext->SetScissorTestEnabled(cmd.scissorTest.enable);
532         break;
533       }
534       case GLES::CommandType::SET_VIEWPORT: // @todo Consider correcting for orientation here?
535       {
536         mGlAbstraction->Viewport(cmd.viewport.region.x, cmd.viewport.region.y, cmd.viewport.region.width, cmd.viewport.region.height);
537         break;
538       }
539
540       case GLES::CommandType::SET_COLOR_MASK:
541       {
542         mCurrentContext->ColorMask(cmd.colorMask.enabled);
543         break;
544       }
545       case GLES::CommandType::CLEAR_STENCIL_BUFFER:
546       {
547         mCurrentContext->ClearStencilBuffer();
548         break;
549       }
550       case GLES::CommandType::CLEAR_DEPTH_BUFFER:
551       {
552         mCurrentContext->ClearDepthBuffer();
553         break;
554       }
555
556       case GLES::CommandType::SET_STENCIL_TEST_ENABLE:
557       {
558         mCurrentContext->SetStencilTestEnable(cmd.stencilTest.enabled);
559         break;
560       }
561
562       case GLES::CommandType::SET_STENCIL_FUNC:
563       {
564         mCurrentContext->StencilFunc(cmd.stencilFunc.compareOp,
565                                      cmd.stencilFunc.reference,
566                                      cmd.stencilFunc.compareMask);
567         break;
568       }
569
570       case GLES::CommandType::SET_STENCIL_WRITE_MASK:
571       {
572         mCurrentContext->StencilMask(cmd.stencilWriteMask.mask);
573         break;
574       }
575
576       case GLES::CommandType::SET_STENCIL_OP:
577       {
578         mCurrentContext->StencilOp(cmd.stencilOp.failOp,
579                                    cmd.stencilOp.depthFailOp,
580                                    cmd.stencilOp.passOp);
581         break;
582       }
583
584       case GLES::CommandType::SET_DEPTH_COMPARE_OP:
585       {
586         mCurrentContext->SetDepthCompareOp(cmd.depth.compareOp);
587         break;
588       }
589       case GLES::CommandType::SET_DEPTH_TEST_ENABLE:
590       {
591         mCurrentContext->SetDepthTestEnable(cmd.depth.testEnabled);
592         break;
593       }
594       case GLES::CommandType::SET_DEPTH_WRITE_ENABLE:
595       {
596         mCurrentContext->SetDepthWriteEnable(cmd.depth.writeEnabled);
597         break;
598       }
599
600       case GLES::CommandType::BEGIN_RENDERPASS:
601       {
602         auto&       renderTarget = *cmd.beginRenderPass.renderTarget;
603         const auto& targetInfo   = renderTarget.GetCreateInfo();
604
605         if(targetInfo.surface)
606         {
607           // switch to surface context
608           mGraphics->ActivateSurfaceContext(static_cast<Dali::RenderSurfaceInterface*>(targetInfo.surface));
609         }
610         else if(targetInfo.framebuffer)
611         {
612           // switch to resource context
613           mGraphics->ActivateResourceContext();
614         }
615
616         mCurrentContext->BeginRenderPass(cmd.beginRenderPass);
617
618         break;
619       }
620       case GLES::CommandType::END_RENDERPASS:
621       {
622         mCurrentContext->EndRenderPass(mTextureDependencyChecker);
623
624         // This sync object is to enable cpu to wait for rendering to complete, not gpu.
625         // It's only needed for reading the framebuffer texture in the client.
626         auto syncObject = const_cast<GLES::SyncObject*>(static_cast<const GLES::SyncObject*>(cmd.endRenderPass.syncObject));
627         if(syncObject)
628         {
629           syncObject->InitializeResource();
630         }
631         break;
632       }
633       case GLES::CommandType::PRESENT_RENDER_TARGET:
634       {
635         ResolvePresentRenderTarget(cmd.presentRenderTarget.targetToPresent);
636
637         // The command buffer will be pushed into the queue of presentation command buffers
638         // for further reuse.
639         if(commandBuffer.GetCreateInfo().fixedCapacity == 1)
640         {
641           mPresentationCommandBuffers.push(&commandBuffer);
642         }
643         break;
644       }
645       case GLES::CommandType::EXECUTE_COMMAND_BUFFERS:
646       {
647         // Process secondary command buffers
648         // todo: check validity of the secondaries
649         //       there are operations which are illigal to be done
650         //       within secondaries.
651         auto buffers = cmd.executeCommandBuffers.buffers.Ptr();
652         for(auto j = 0u; j < cmd.executeCommandBuffers.buffersCount; ++j)
653         {
654           auto& buf = buffers[j];
655           ProcessCommandBuffer(*static_cast<const GLES::CommandBuffer*>(buf));
656         }
657         break;
658       }
659       case GLES::CommandType::DRAW_NATIVE:
660       {
661         auto* info = &cmd.drawNative.drawNativeInfo;
662
663         mCurrentContext->PrepareForNativeRendering();
664
665         if(info->glesNativeInfo.eglSharedContextStoragePointer)
666         {
667           auto* anyContext = reinterpret_cast<std::any*>(info->glesNativeInfo.eglSharedContextStoragePointer);
668           *anyContext      = mSharedContext;
669         }
670
671         CallbackBase::ExecuteReturn<bool>(*info->callback, info->userData);
672
673         mCurrentContext->RestoreFromNativeRendering();
674         break;
675       }
676     }
677   }
678 }
679
680 void EglGraphicsController::ProcessCommandQueues()
681 {
682   DUMP_FRAME_START();
683
684   while(!mCommandQueue.empty())
685   {
686     auto cmdBuf = mCommandQueue.front();
687     mCommandQueue.pop();
688     DUMP_FRAME_COMMAND_BUFFER(cmdBuf);
689     ProcessCommandBuffer(*cmdBuf);
690   }
691
692   DUMP_FRAME_END();
693 }
694
695 void EglGraphicsController::ProcessTextureUpdateQueue()
696 {
697   while(!mTextureUpdateRequests.empty())
698   {
699     TextureUpdateRequest& request = mTextureUpdateRequests.front();
700
701     auto& info   = request.first;
702     auto& source = request.second;
703
704     switch(source.sourceType)
705     {
706       case Graphics::TextureUpdateSourceInfo::Type::MEMORY:
707       case Graphics::TextureUpdateSourceInfo::Type::PIXEL_DATA:
708       {
709         // GPU memory must be already allocated.
710
711         // Check if it needs conversion
712         auto*       texture            = static_cast<GLES::Texture*>(info.dstTexture);
713         const auto& createInfo         = texture->GetCreateInfo();
714         auto        srcFormat          = GLES::GLTextureFormatType(info.srcFormat).format;
715         auto        srcType            = GLES::GLTextureFormatType(info.srcFormat).type;
716         auto        destInternalFormat = GLES::GLTextureFormatType(createInfo.format).internalFormat;
717         auto        destFormat         = GLES::GLTextureFormatType(createInfo.format).format;
718
719         // From render-texture.cpp
720         const bool isSubImage(info.dstOffset2D.x != 0 || info.dstOffset2D.y != 0 ||
721                               info.srcExtent2D.width != (createInfo.size.width / (1 << info.level)) ||
722                               info.srcExtent2D.height != (createInfo.size.height / (1 << info.level)));
723
724         uint8_t* sourceBuffer;
725         if(source.sourceType == Graphics::TextureUpdateSourceInfo::Type::MEMORY)
726         {
727           sourceBuffer = reinterpret_cast<uint8_t*>(source.memorySource.memory);
728         }
729         else
730         {
731           // Get buffer of PixelData
732           Dali::Integration::PixelDataBuffer pixelBufferData = Dali::Integration::GetPixelDataBuffer(source.pixelDataSource.pixelData);
733
734           sourceBuffer = pixelBufferData.buffer + info.srcOffset;
735         }
736
737         auto                 sourceStride = info.srcStride;
738         std::vector<uint8_t> tempBuffer;
739
740         if(mGlAbstraction->TextureRequiresConverting(srcFormat, destFormat, isSubImage))
741         {
742           // Convert RGB to RGBA if necessary.
743           if(texture->TryConvertPixelData(sourceBuffer, info.srcFormat, createInfo.format, info.srcSize, info.srcStride, info.srcExtent2D.width, info.srcExtent2D.height, tempBuffer))
744           {
745             sourceBuffer = &tempBuffer[0];
746             sourceStride = 0u; // Converted buffer compacted. make stride as 0.
747             srcFormat    = destFormat;
748             srcType      = GLES::GLTextureFormatType(createInfo.format).type;
749           }
750         }
751
752         // Calculate the maximum mipmap level for the texture
753         texture->SetMaxMipMapLevel(std::max(texture->GetMaxMipMapLevel(), info.level));
754
755         GLenum bindTarget{GL_TEXTURE_2D};
756         GLenum target{GL_TEXTURE_2D};
757
758         if(createInfo.textureType == Graphics::TextureType::TEXTURE_CUBEMAP)
759         {
760           bindTarget = GL_TEXTURE_CUBE_MAP;
761           target     = GL_TEXTURE_CUBE_MAP_POSITIVE_X + info.layer;
762         }
763
764         mGlAbstraction->PixelStorei(GL_UNPACK_ALIGNMENT, 1);
765         mGlAbstraction->PixelStorei(GL_UNPACK_ROW_LENGTH, sourceStride);
766
767         mCurrentContext->BindTexture(bindTarget, texture->GetTextureTypeId(), texture->GetGLTexture());
768
769         if(!isSubImage)
770         {
771           if(!texture->IsCompressed())
772           {
773             mGlAbstraction->TexImage2D(target,
774                                        info.level,
775                                        destInternalFormat,
776                                        info.srcExtent2D.width,
777                                        info.srcExtent2D.height,
778                                        0,
779                                        srcFormat,
780                                        srcType,
781                                        sourceBuffer);
782           }
783           else
784           {
785             mGlAbstraction->CompressedTexImage2D(target,
786                                                  info.level,
787                                                  destInternalFormat,
788                                                  info.srcExtent2D.width,
789                                                  info.srcExtent2D.height,
790                                                  0,
791                                                  info.srcSize,
792                                                  sourceBuffer);
793           }
794         }
795         else
796         {
797           if(!texture->IsCompressed())
798           {
799             mGlAbstraction->TexSubImage2D(target,
800                                           info.level,
801                                           info.dstOffset2D.x,
802                                           info.dstOffset2D.y,
803                                           info.srcExtent2D.width,
804                                           info.srcExtent2D.height,
805                                           srcFormat,
806                                           srcType,
807                                           sourceBuffer);
808           }
809           else
810           {
811             mGlAbstraction->CompressedTexSubImage2D(target,
812                                                     info.level,
813                                                     info.dstOffset2D.x,
814                                                     info.dstOffset2D.y,
815                                                     info.srcExtent2D.width,
816                                                     info.srcExtent2D.height,
817                                                     srcFormat,
818                                                     info.srcSize,
819                                                     sourceBuffer);
820           }
821         }
822
823         if(source.sourceType == Graphics::TextureUpdateSourceInfo::Type::MEMORY)
824         {
825           // free staging memory
826           free(source.memorySource.memory);
827         }
828         break;
829       }
830       default:
831       {
832         // TODO: other sources
833         break;
834       }
835     }
836
837     mTextureUpdateRequests.pop();
838   }
839 }
840
841 void EglGraphicsController::UpdateTextures(const std::vector<TextureUpdateInfo>&       updateInfoList,
842                                            const std::vector<TextureUpdateSourceInfo>& sourceList)
843 {
844   // Store updates
845   for(auto& info : updateInfoList)
846   {
847     mTextureUpdateRequests.push(std::make_pair(info, sourceList[info.srcReference]));
848     auto& pair = mTextureUpdateRequests.back();
849     switch(pair.second.sourceType)
850     {
851       case Graphics::TextureUpdateSourceInfo::Type::MEMORY:
852       {
853         auto& info   = pair.first;
854         auto& source = pair.second;
855
856         // allocate staging memory and copy the data
857         // TODO: using PBO with GLES3, this is just naive
858         // oldschool way
859
860         uint8_t* stagingBuffer = reinterpret_cast<uint8_t*>(malloc(info.srcSize));
861
862         uint8_t* srcMemory = &reinterpret_cast<uint8_t*>(source.memorySource.memory)[info.srcOffset];
863
864         std::copy(srcMemory, srcMemory + info.srcSize, stagingBuffer);
865
866         mTextureUploadTotalCPUMemoryUsed += info.srcSize;
867
868         // store staging buffer
869         source.memorySource.memory = stagingBuffer;
870         break;
871       }
872       case Graphics::TextureUpdateSourceInfo::Type::PIXEL_DATA:
873       {
874         // Increase CPU memory usage since ownership of PixelData is now on mTextureUpdateRequests.
875         mTextureUploadTotalCPUMemoryUsed += info.srcSize;
876         break;
877       }
878       case Graphics::TextureUpdateSourceInfo::Type::BUFFER:
879       {
880         // TODO, with PBO support
881         break;
882       }
883       case Graphics::TextureUpdateSourceInfo::Type::TEXTURE:
884       {
885         // TODO texture 2 texture in-GPU copy
886         break;
887       }
888     }
889   }
890
891   // If upload buffer exceeds maximum size, flush.
892   if(mTextureUploadTotalCPUMemoryUsed > TEXTURE_UPLOAD_MAX_BUFER_SIZE_MB * 1024 * 1024)
893   {
894     Flush();
895     mTextureUploadTotalCPUMemoryUsed = 0;
896   }
897 }
898
899 void EglGraphicsController::ProcessTextureMipmapGenerationQueue()
900 {
901   while(!mTextureMipmapGenerationRequests.empty())
902   {
903     auto* texture = mTextureMipmapGenerationRequests.front();
904
905     mCurrentContext->BindTexture(texture->GetGlTarget(), texture->GetTextureTypeId(), texture->GetGLTexture());
906     mCurrentContext->GenerateMipmap(texture->GetGlTarget());
907
908     mTextureMipmapGenerationRequests.pop();
909   }
910 }
911
912 void EglGraphicsController::GenerateTextureMipmaps(const Graphics::Texture& texture)
913 {
914   mTextureMipmapGenerationRequests.push(static_cast<const GLES::Texture*>(&texture));
915 }
916
917 Graphics::UniquePtr<Memory> EglGraphicsController::MapBufferRange(const MapBufferInfo& mapInfo)
918 {
919   mGraphics->ActivateResourceContext();
920
921   // Mapping buffer requires the object to be created NOW
922   // Workaround - flush now, otherwise there will be given a staging buffer
923   // in case when the buffer is not there yet
924   ProcessCreateQueues();
925
926   if(GetGLESVersion() < GLES::GLESVersion::GLES_30)
927   {
928     return Graphics::UniquePtr<Memory>(new GLES::Memory2(mapInfo, *this));
929   }
930   else
931   {
932     return Graphics::UniquePtr<Memory>(new GLES::Memory3(mapInfo, *this));
933   }
934 }
935
936 bool EglGraphicsController::GetProgramParameter(Graphics::Program& program, uint32_t parameterId, void* outData)
937 {
938   return static_cast<GLES::Program*>(&program)->GetImplementation()->GetParameter(parameterId, outData);
939 }
940
941 GLES::PipelineCache& EglGraphicsController::GetPipelineCache() const
942 {
943   return *mPipelineCache;
944 }
945
946 } // namespace Dali::Graphics