src/gpu/effects/generated/GrClampFragmentProcessor.h

/*
 * Copyright 2019 Google LLC
 *
 * 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 GrClampFragmentProcessor.fp; do not modify.
 **************************************************************************************************/
#ifndef GrClampFragmentProcessor_DEFINED
#define GrClampFragmentProcessor_DEFINED
#include "include/core/SkTypes.h"
#include "include/private/SkM44.h"

#include "src/gpu/GrCoordTransform.h"
#include "src/gpu/GrFragmentProcessor.h"
class GrClampFragmentProcessor : public GrFragmentProcessor {
public:
    SkPMColor4f constantOutputForConstantInput(const SkPMColor4f& input) const override {
        float clampedAlpha = SkTPin(input.fA, 0.f, 1.f);
        float clampVal = clampToPremul ? clampedAlpha : 1.f;
        return {SkTPin(input.fR, 0.f, clampVal), SkTPin(input.fG, 0.f, clampVal),
                SkTPin(input.fB, 0.f, clampVal), clampedAlpha};
    }
    static std::unique_ptr<GrFragmentProcessor> Make(bool clampToPremul) {
        return std::unique_ptr<GrFragmentProcessor>(new GrClampFragmentProcessor(clampToPremul));
    }
    GrClampFragmentProcessor(const GrClampFragmentProcessor& src);
    std::unique_ptr<GrFragmentProcessor> clone() const override;
    const char* name() const override { return "ClampFragmentProcessor"; }
    bool clampToPremul;

private:
    GrClampFragmentProcessor(bool clampToPremul)
            : INHERITED(kGrClampFragmentProcessor_ClassID,
                        (OptimizationFlags)kConstantOutputForConstantInput_OptimizationFlag |
                                kPreservesOpaqueInput_OptimizationFlag)
            , clampToPremul(clampToPremul) {}
    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