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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrMtlPipelineStateBuilder_DEFINED
#define GrMtlPipelineStateBuilder_DEFINED
#include "include/gpu/GrContextOptions.h"
#include "src/gpu/ganesh/GrPipeline.h"
#include "src/gpu/ganesh/glsl/GrGLSLProgramBuilder.h"
#include "src/gpu/ganesh/mtl/GrMtlUniformHandler.h"
#include "src/gpu/ganesh/mtl/GrMtlVaryingHandler.h"
#include "src/sksl/ir/SkSLProgram.h"
#import <Metal/Metal.h>
class GrProgramDesc;
class GrProgramInfo;
class GrMtlCaps;
class GrMtlGpu;
class GrMtlPipelineState;
class SkReadBuffer;
namespace SkSL { class Compiler; }
struct GrMtlPrecompiledLibraries {
// TODO: wrap these in sk_cfp<> or unique_ptr<> when we remove ARC
id<MTLLibrary> fVertexLibrary;
id<MTLLibrary> fFragmentLibrary;
bool fRTFlip = false;
};
class GrMtlPipelineStateBuilder : public GrGLSLProgramBuilder {
public:
/** Generates a pipeline state.
*
* The returned GrMtlPipelineState implements the supplied GrProgramInfo.
*
* @return the created pipeline if generation was successful; nullptr otherwise
*/
static GrMtlPipelineState* CreatePipelineState(
GrMtlGpu*,
const GrProgramDesc&,
const GrProgramInfo&,
const GrMtlPrecompiledLibraries* precompiledLibs = nullptr);
static bool PrecompileShaders(GrMtlGpu*, const SkData&,
GrMtlPrecompiledLibraries* precompiledLibs);
private:
GrMtlPipelineStateBuilder(GrMtlGpu*, const GrProgramDesc&, const GrProgramInfo&);
GrMtlPipelineState* finalize(const GrProgramDesc&, const GrProgramInfo&,
const GrMtlPrecompiledLibraries* precompiledLibraries);
const GrCaps* caps() const override;
void finalizeFragmentSecondaryColor(GrShaderVar& outputColor) override;
id<MTLLibrary> compileMtlShaderLibrary(const std::string& shader,
SkSL::Program::Interface,
GrContextOptions::ShaderErrorHandler* errorHandler);
void storeShadersInCache(const std::string shaders[],
const SkSL::Program::Interface[],
SkSL::ProgramSettings*,
sk_sp<SkData>,
bool isSkSL);
GrGLSLUniformHandler* uniformHandler() override { return &fUniformHandler; }
const GrGLSLUniformHandler* uniformHandler() const override { return &fUniformHandler; }
GrGLSLVaryingHandler* varyingHandler() override { return &fVaryingHandler; }
GrMtlGpu* fGpu;
GrMtlUniformHandler fUniformHandler;
GrMtlVaryingHandler fVaryingHandler;
using INHERITED = GrGLSLProgramBuilder;
};
#endif