GrD3DPipelineStateBuilder.h

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/*
 * Copyright 2020 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#ifndef GrD3DPipelineStateBuilder_DEFINED
#define GrD3DPipelineStateBuilder_DEFINED
 
#include "src/gpu/PipelineUtils.h"
#include "src/gpu/ganesh/GrPipeline.h"
#include "src/gpu/ganesh/GrSPIRVUniformHandler.h"
#include "src/gpu/ganesh/GrSPIRVVaryingHandler.h"
#include "src/gpu/ganesh/d3d/GrD3DPipelineState.h"
#include "src/gpu/ganesh/glsl/GrGLSLProgramBuilder.h"
#include "src/sksl/codegen/SkSLHLSLCodeGenerator.h"
#include "src/sksl/ir/SkSLProgram.h"
 
namespace SkSL {
 
enum class ProgramKind : int8_t;
struct ProgramInterface;
struct ProgramSettings;
struct ShaderCaps;
 
}  // namespace SkSL
 
class GrProgramDesc;
class GrD3DGpu;
class GrVkRenderPass;
 
class GrD3DPipelineStateBuilder : public GrGLSLProgramBuilder {
public:
    /** Generates a pipeline state.
     *
     * The returned GrD3DPipelineState implements the supplied GrProgramInfo.
     *
     * @return the created pipeline if generation was successful; nullptr otherwise
     */
    static std::unique_ptr<GrD3DPipelineState> MakePipelineState(GrD3DGpu*,
                                                                 GrD3DRenderTarget*,
                                                                 const GrProgramDesc&,
                                                                 const GrProgramInfo&);
 
    static sk_sp<GrD3DPipeline> MakeComputePipeline(GrD3DGpu*, GrD3DRootSignature*,
                                                    const char* shader);
 
    const GrCaps* caps() const override;
 
    GrD3DGpu* gpu() const { return fGpu; }
 
    void finalizeFragmentSecondaryColor(GrShaderVar& outputColor) override;
 
private:
    GrD3DPipelineStateBuilder(GrD3DGpu*, GrD3DRenderTarget*, const GrProgramDesc&,
                              const GrProgramInfo&);
 
    std::unique_ptr<GrD3DPipelineState> finalize();
 
    bool loadHLSLFromCache(SkReadBuffer* reader, gr_cp<ID3DBlob> shaders[]);
 
    gr_cp<ID3DBlob> compileD3DProgram(SkSL::ProgramKind kind,
                                      const std::string& sksl,
                                      const SkSL::ProgramSettings& settings,
                                      SkSL::Program::Interface* outInterface,
                                      std::string* outHLSL);
 
    GrGLSLUniformHandler* uniformHandler() override { return &fUniformHandler; }
    const GrGLSLUniformHandler* uniformHandler() const override { return &fUniformHandler; }
    GrGLSLVaryingHandler* varyingHandler() override { return &fVaryingHandler; }
 
    GrD3DGpu* fGpu;
    GrSPIRVVaryingHandler fVaryingHandler;
    GrSPIRVUniformHandler fUniformHandler;
    GrD3DRenderTarget* fRenderTarget;
 
    using INHERITED = GrGLSLProgramBuilder;
};
 
namespace skgpu {
 
class ShaderErrorHandler;
 
inline bool SkSLToHLSL(const SkSL::ShaderCaps* caps,
                       const std::string& sksl,
                       SkSL::ProgramKind programKind,
                       const SkSL::ProgramSettings& settings,
                       std::string* hlsl,
                       SkSL::ProgramInterface* outInterface,
                       ShaderErrorHandler* errorHandler) {
    return SkSLToBackend(caps, &SkSL::ToHLSL, "HLSL",
                         sksl, programKind, settings, hlsl, outInterface, errorHandler);
}
 
}  // namespace skgpu
 
#endif