src/gpu/effects/generated/GrModulateAlphaEffect.h

/*
 * Copyright 2020 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

/**************************************************************************************************
 *** This file was autogenerated from GrModulateAlphaEffect.fp; do not modify.
 **************************************************************************************************/
#ifndef GrModulateAlphaEffect_DEFINED
#define GrModulateAlphaEffect_DEFINED

#include "include/core/SkM44.h"
#include "include/core/SkTypes.h"

#include "src/gpu/GrFragmentProcessor.h"

class GrModulateAlphaEffect : public GrFragmentProcessor {
public:
    SkPMColor4f constantOutputForConstantInput(const SkPMColor4f& inColor) const override {
        SkPMColor4f input = this->numChildProcessors()
                                    ? ConstantOutputForConstantInput(
                                              this->childProcessor(inputFP_index), inColor)
                                    : inColor;
        return color * input.fA;
    }
    static std::unique_ptr<GrFragmentProcessor> Make(std::unique_ptr<GrFragmentProcessor> inputFP,
                                                     SkPMColor4f color) {
        return std::unique_ptr<GrFragmentProcessor>(
                new GrModulateAlphaEffect(std::move(inputFP), color));
    }
    GrModulateAlphaEffect(const GrModulateAlphaEffect& src);
    std::unique_ptr<GrFragmentProcessor> clone() const override;
    const char* name() const override { return "ModulateAlphaEffect"; }
    int inputFP_index = -1;
    SkPMColor4f color;

private:
    GrModulateAlphaEffect(std::unique_ptr<GrFragmentProcessor> inputFP, SkPMColor4f color)
            : INHERITED(kGrModulateAlphaEffect_ClassID,
                        (OptimizationFlags)(inputFP ? ProcessorOptimizationFlags(inputFP.get())
                                                    : kAll_OptimizationFlags) &
                                (kConstantOutputForConstantInput_OptimizationFlag |
                                 kCompatibleWithCoverageAsAlpha_OptimizationFlag |
                                 (color.isOpaque() ? kPreservesOpaqueInput_OptimizationFlag
                                                   : kNone_OptimizationFlags)))
            , color(color) {
        inputFP_index = this->registerChild(std::move(inputFP), SkSL::SampleUsage::PassThrough());
    }
    GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
    void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
    bool onIsEqual(const GrFragmentProcessor&) const override;
    GR_DECLARE_FRAGMENT_PROCESSOR_TEST
    typedef GrFragmentProcessor INHERITED;
};
#endif