src/dawn/native/opengl/RenderPipelineGL.h

// Copyright 2017 The Dawn & Tint Authors
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#ifndef SRC_DAWN_NATIVE_OPENGL_RENDERPIPELINEGL_H_
#define SRC_DAWN_NATIVE_OPENGL_RENDERPIPELINEGL_H_

#include <vector>

#include "dawn/native/RenderPipeline.h"

#include "dawn/native/opengl/PipelineGL.h"
#include "dawn/native/opengl/opengl_platform.h"

namespace dawn::native::opengl {

class Device;
class PersistentPipelineState;

class RenderPipeline final : public RenderPipelineBase, public PipelineGL {
  public:
    static Ref<RenderPipeline> CreateUninitialized(
        Device* device,
        const UnpackedPtr<RenderPipelineDescriptor>& descriptor);

    GLenum GetGLPrimitiveTopology() const;
    VertexAttributeMask GetAttributesUsingVertexBuffer(VertexBufferSlot slot) const;

    void ApplyNow(PersistentPipelineState& persistentPipelineState);

    MaybeError InitializeImpl() override;

  private:
    RenderPipeline(Device* device, const UnpackedPtr<RenderPipelineDescriptor>& descriptor);
    ~RenderPipeline() override;
    void DestroyImpl() override;

    void CreateVAOForVertexState();

    void ApplyDepthStencilState(const OpenGLFunctions& gl,
                                PersistentPipelineState* persistentPipelineState);

    // TODO(yunchao.he@intel.com): vao need to be deduplicated between pipelines.
    GLuint mVertexArrayObject;
    GLenum mGlPrimitiveTopology;

    PerVertexBuffer<VertexAttributeMask> mAttributesUsingVertexBuffer;
};

}  // namespace dawn::native::opengl

#endif  // SRC_DAWN_NATIVE_OPENGL_RENDERPIPELINEGL_H_