dali/internal/graphics/gles-impl/gles-graphics-pipeline.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
  18 // CLASS HEADER
  19 #include "gles-graphics-pipeline.h"
  20
  21 // EXTERNAL INCLUDES
  22 #include <dali/integration-api/gl-defines.h>
  23 #include <memory>
  24
  25 // INTERNAL INCLUDES
  26 #include "egl-graphics-controller.h"
  27 #include "gles-graphics-pipeline-cache.h"
  28 #include "gles-graphics-program.h"
  29
  30 namespace Dali::Graphics::GLES
  31 {
  32 /**
  33  * Copy of pipeline state, can be also used for internal caching
  34  */
  35 struct PipelineImpl::PipelineState
  36 {
  37   PipelineState()  = default;
  38   ~PipelineState() = default;
  39
  40   // for maintaining correct lifecycle, the owned program
  41   // wrapper must be created
  42   UniquePtr<Program> program;
  43
  44   ColorBlendState    colorBlendState;
  45   DepthStencilState  depthStencilState;
  46   ProgramState       programState;
  47   ViewportState      viewportState;
  48   RasterizationState rasterizationState;
  49   VertexInputState   vertexInputState;
  50   InputAssemblyState inputAssemblyState;
  51
  52   PipelineCache* pipelineCache{};
  53 };
  54
  55 PipelineImpl::PipelineImpl(const Graphics::PipelineCreateInfo& createInfo, Graphics::EglGraphicsController& controller, PipelineCache& pipelineCache)
  56 : mController(controller)
  57 {
  58   // the creation is deferred so it's needed to copy certain parts of the CreateInfo structure
  59   mPipelineState = std::make_unique<PipelineImpl::PipelineState>();
  60
  61   // Make copies of structured pass by pointers and replace
  62   // stored create info structure fields
  63   CopyStateIfSet(createInfo.inputAssemblyState, mPipelineState->inputAssemblyState, &mCreateInfo.inputAssemblyState);
  64   CopyStateIfSet(createInfo.vertexInputState, mPipelineState->vertexInputState, &mCreateInfo.vertexInputState);
  65   CopyStateIfSet(createInfo.rasterizationState, mPipelineState->rasterizationState, &mCreateInfo.rasterizationState);
  66   CopyStateIfSet(createInfo.programState, mPipelineState->programState, &mCreateInfo.programState);
  67   CopyStateIfSet(createInfo.colorBlendState, mPipelineState->colorBlendState, &mCreateInfo.colorBlendState);
  68   CopyStateIfSet(createInfo.depthStencilState, mPipelineState->depthStencilState, &mCreateInfo.depthStencilState);
  69   CopyStateIfSet(createInfo.programState, mPipelineState->programState, &mCreateInfo.programState);
  70   CopyStateIfSet(createInfo.viewportState, mPipelineState->viewportState, &mCreateInfo.viewportState);
  71
  72   // This program doesn't need custom deleter
  73   auto programImpl        = static_cast<const GLES::Program*>(createInfo.programState->program)->GetImplementation();
  74   mPipelineState->program = MakeUnique<GLES::Program>(programImpl);
  75
  76   // To make sure the program is alive as long as the pipeline is!
  77   mCreateInfo.programState->program = mPipelineState->program.get();
  78
  79   // Set pipeline cache
  80   mPipelineState->pipelineCache = &pipelineCache;
  81 }
  82
  83 const PipelineCreateInfo& PipelineImpl::GetCreateInfo() const
  84 {
  85   return mCreateInfo;
  86 }
  87
  88 auto& PipelineImpl::GetController() const
  89 {
  90   return mController;
  91 }
  92
  93 void PipelineImpl::Bind(const uint32_t glProgram) const
  94 {
  95   auto& gl = *GetController().GetGL();
  96   gl.UseProgram(glProgram);
  97 }
  98
  99 void PipelineImpl::Retain()
 100 {
 101   ++mRefCount;
 102 }
 103
 104 void PipelineImpl::Release()
 105 {
 106   --mRefCount;
 107 }
 108
 109 uint32_t PipelineImpl::GetRefCount() const
 110 {
 111   return mRefCount;
 112 }
 113
 114 PipelineImpl::~PipelineImpl() = default;
 115
 116 // PIPELINE WRAPPER
 117
 118 const PipelineCreateInfo& Pipeline::GetCreateInfo() const
 119 {
 120   return mPipeline.GetCreateInfo();
 121 }
 122
 123 EglGraphicsController& Pipeline::GetController() const
 124 {
 125   return mPipeline.GetController();
 126 }
 127
 128 Pipeline::~Pipeline()
 129 {
 130   // decrease refcount
 131   if(mPipeline.GetRefCount())
 132   {
 133     mPipeline.Release();
 134   }
 135 }
 136
 137 void Pipeline::DiscardResource()
 138 {
 139   // Send pipeline to discard queue if refcount is 0
 140   GetController().DiscardResource(this);
 141 }
 142
 143 } // namespace Dali::Graphics::GLES