text: /*
   * Copyright (c) 2021 Samsung Electronics Co., Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #include <dali/graphics-api/graphics-controller.h>
  #include <dali/internal/render/renderers/shader-cache.h>
  
  namespace Dali
  {
  namespace Internal
  {
  namespace Render
  {
  ShaderCache::ShaderCache(Dali::Graphics::Controller& controller)
  : mController(controller)
  {
  }
  
  Dali::Graphics::Shader& ShaderCache::GetShader(const std::vector<char>& shaderCode, Graphics::PipelineStage stage, Graphics::ShaderSourceMode type)
  {
    for(auto&& item : mItems)
    {
      if(item.shaderCode == shaderCode && item.stage == stage && item.type == type)
      {
        return *item.shader.get();
      }
    }
  
    Graphics::ShaderCreateInfo shaderCreateInfo;
    shaderCreateInfo.SetPipelineStage(stage);
    shaderCreateInfo.SetSourceData(static_cast<const void*>(shaderCode.data()));
    shaderCreateInfo.SetSourceSize(shaderCode.size());
    shaderCreateInfo.SetSourceMode(type);
  
    Graphics::UniquePtr<Graphics::Shader> shader = mController.CreateShader(shaderCreateInfo, nullptr);
  
    mItems.emplace_back(std::move(shader), shaderCode, stage, type);
    return *mItems.back().shader.get();
  }
  
  } // namespace Render
  } // namespace Internal
  } // namespace Dali
  