PipelineBuilder.hpp

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#pragma oncepipeline
 
#include <SDL3/SDL_gpu.h>
 
#include <vector>
 
namespace sKit {
namespace SDL {
 
class PipelineBuilder {
 public:
  auto shaders(SDL_GPUShader* vertexShader, SDL_GPUShader* fragmentShader)
      -> PipelineBuilder&;
 
  auto addBuffer(
      Uint32 slot,
      Uint32 stride,
      SDL_GPUVertexInputRate inputRate = SDL_GPU_VERTEXINPUTRATE_VERTEX
  ) -> PipelineBuilder&;
 
  auto addAttribute(
      Uint32 location,
      Uint32 bufferSlot,
      Uint32 offset = 0,
      SDL_GPUVertexElementFormat format = SDL_GPU_VERTEXELEMENTFORMAT_FLOAT3
  ) -> PipelineBuilder&;
 
  auto addColorTarget(SDL_GPUTextureFormat format) -> PipelineBuilder&;
 
  auto cullMode(SDL_GPUCullMode cullMode) -> PipelineBuilder&;
 
  auto build(SDL_GPUDevice* device) -> SDL_GPUGraphicsPipeline*;
 
 private:
  SDL_GPUShader *vs_, *fs_;
  std::vector<SDL_GPUVertexBufferDescription> bufferDescs_;
  std::vector<SDL_GPUVertexAttribute> vertexAttribs_;
  std::vector<SDL_GPUColorTargetDescription> colorTargetDescs_;
  SDL_GPUCullMode cullMode_ = SDL_GPU_CULLMODE_NONE;
  SDL_GPUFrontFace frontFace_ = SDL_GPU_FRONTFACE_COUNTER_CLOCKWISE;
};
 
}  // namespace SDL
 
}  // namespace sKit