text: // Copyright 2018 The Dawn Authors
  //
  // 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.
  
  #ifndef UTILS_COMBORENDERPIPELINEDESCRIPTOR_H_
  #define UTILS_COMBORENDERPIPELINEDESCRIPTOR_H_
  
  #include <dawn/webgpu_cpp.h>
  
  #include "common/Constants.h"
  
  #include <array>
  
  namespace utils {
  
      // For creating deprecated render pipeline descriptors
      class ComboVertexStateDescriptor : public wgpu::VertexStateDescriptor {
        public:
          ComboVertexStateDescriptor();
  
          ComboVertexStateDescriptor(const ComboVertexStateDescriptor&) = delete;
          ComboVertexStateDescriptor& operator=(const ComboVertexStateDescriptor&) = delete;
          ComboVertexStateDescriptor(ComboVertexStateDescriptor&&) = delete;
          ComboVertexStateDescriptor& operator=(ComboVertexStateDescriptor&&) = delete;
  
          std::array<wgpu::VertexBufferLayoutDescriptor, kMaxVertexBuffers> cVertexBuffers;
          std::array<wgpu::VertexAttributeDescriptor, kMaxVertexAttributes> cAttributes;
      };
  
      class ComboRenderPipelineDescriptor : public wgpu::RenderPipelineDescriptor {
        public:
          ComboRenderPipelineDescriptor(const wgpu::Device& device);
  
          ComboRenderPipelineDescriptor(const ComboRenderPipelineDescriptor&) = delete;
          ComboRenderPipelineDescriptor& operator=(const ComboRenderPipelineDescriptor&) = delete;
          ComboRenderPipelineDescriptor(ComboRenderPipelineDescriptor&&) = delete;
          ComboRenderPipelineDescriptor& operator=(ComboRenderPipelineDescriptor&&) = delete;
  
          wgpu::ProgrammableStageDescriptor cFragmentStage;
  
          ComboVertexStateDescriptor cVertexState;
          wgpu::RasterizationStateDescriptor cRasterizationState;
          std::array<wgpu::ColorStateDescriptor, kMaxColorAttachments> cColorStates;
          wgpu::DepthStencilStateDescriptor cDepthStencilState;
      };
  
      // For creating the new style of render pipeline descriptors
      class ComboRenderPipelineDescriptor2 : public wgpu::RenderPipelineDescriptor2 {
        public:
          ComboRenderPipelineDescriptor2();
  
          ComboRenderPipelineDescriptor2(const ComboRenderPipelineDescriptor2&) = delete;
          ComboRenderPipelineDescriptor2& operator=(const ComboRenderPipelineDescriptor2&) = delete;
          ComboRenderPipelineDescriptor2(ComboRenderPipelineDescriptor2&&) = delete;
          ComboRenderPipelineDescriptor2& operator=(ComboRenderPipelineDescriptor2&&) = delete;
  
          wgpu::DepthStencilState* EnableDepthStencil(
              wgpu::TextureFormat format = wgpu::TextureFormat::Depth24PlusStencil8);
  
          std::array<wgpu::VertexBufferLayout, kMaxVertexBuffers> cBuffers;
          std::array<wgpu::VertexAttribute, kMaxVertexAttributes> cAttributes;
          std::array<wgpu::ColorTargetState, kMaxColorAttachments> cTargets;
          std::array<wgpu::BlendState, kMaxColorAttachments> cBlends;
  
          wgpu::FragmentState cFragment;
          wgpu::DepthStencilState cDepthStencil;
      };
  
  }  // namespace utils
  
  #endif  // UTILS_COMBORENDERPIPELINEDESCRIPTOR_H_
  