src/gpu/gradients/generated/GrClampedGradientEffect.cpp

/*
 * Copyright 2018 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 GrClampedGradientEffect.fp; do not modify.
 **************************************************************************************************/
#include "GrClampedGradientEffect.h"

#include "src/core/SkUtils.h"
#include "src/gpu/GrTexture.h"
#include "src/gpu/glsl/GrGLSLFragmentProcessor.h"
#include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
#include "src/gpu/glsl/GrGLSLProgramBuilder.h"
#include "src/sksl/SkSLCPP.h"
#include "src/sksl/SkSLUtil.h"
class GrGLSLClampedGradientEffect : public GrGLSLFragmentProcessor {
public:
    GrGLSLClampedGradientEffect() {}
    void emitCode(EmitArgs& args) override {
        GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
        const GrClampedGradientEffect& _outer = args.fFp.cast<GrClampedGradientEffect>();
        (void)_outer;
        auto leftBorderColor = _outer.leftBorderColor;
        (void)leftBorderColor;
        auto rightBorderColor = _outer.rightBorderColor;
        (void)rightBorderColor;
        auto makePremul = _outer.makePremul;
        (void)makePremul;
        auto colorsAreOpaque = _outer.colorsAreOpaque;
        (void)colorsAreOpaque;
        leftBorderColorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag,
                                                              kHalf4_GrSLType, "leftBorderColor");
        rightBorderColorVar = args.fUniformHandler->addUniform(&_outer, kFragment_GrShaderFlag,
                                                               kHalf4_GrSLType, "rightBorderColor");
        SkString _sample1099 = this->invokeChild(1, args);
        fragBuilder->codeAppendf(
                R"SkSL(half4 t = %s;
if (!%s && t.y < 0.0) {
    %s = half4(0.0);
} else if (t.x < 0.0) {
    %s = %s;
} else if (t.x > 1.0) {
    %s = %s;
} else {)SkSL",
                _sample1099.c_str(),
                (_outer.childProcessor(1)->preservesOpaqueInput() ? "true" : "false"),
                args.fOutputColor, args.fOutputColor,
                args.fUniformHandler->getUniformCStr(leftBorderColorVar), args.fOutputColor,
                args.fUniformHandler->getUniformCStr(rightBorderColorVar));
        SkString _coords1868("float2(half2(t.x, 0))");
        SkString _sample1868 = this->invokeChild(0, args, _coords1868.c_str());
        fragBuilder->codeAppendf(
                R"SkSL(
    %s = %s;
}
@if (%s) {
    %s.xyz *= %s.w;
}
)SkSL",
                args.fOutputColor, _sample1868.c_str(), (_outer.makePremul ? "true" : "false"),
                args.fOutputColor, args.fOutputColor);
    }

private:
    void onSetData(const GrGLSLProgramDataManager& pdman,
                   const GrFragmentProcessor& _proc) override {
        const GrClampedGradientEffect& _outer = _proc.cast<GrClampedGradientEffect>();
        {
            const SkPMColor4f& leftBorderColorValue = _outer.leftBorderColor;
            if (leftBorderColorPrev != leftBorderColorValue) {
                leftBorderColorPrev = leftBorderColorValue;
                pdman.set4fv(leftBorderColorVar, 1, leftBorderColorValue.vec());
            }
            const SkPMColor4f& rightBorderColorValue = _outer.rightBorderColor;
            if (rightBorderColorPrev != rightBorderColorValue) {
                rightBorderColorPrev = rightBorderColorValue;
                pdman.set4fv(rightBorderColorVar, 1, rightBorderColorValue.vec());
            }
        }
    }
    SkPMColor4f leftBorderColorPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN};
    SkPMColor4f rightBorderColorPrev = {SK_FloatNaN, SK_FloatNaN, SK_FloatNaN, SK_FloatNaN};
    UniformHandle leftBorderColorVar;
    UniformHandle rightBorderColorVar;
};
GrGLSLFragmentProcessor* GrClampedGradientEffect::onCreateGLSLInstance() const {
    return new GrGLSLClampedGradientEffect();
}
void GrClampedGradientEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps,
                                                    GrProcessorKeyBuilder* b) const {
    b->add32((uint32_t)makePremul);
}
bool GrClampedGradientEffect::onIsEqual(const GrFragmentProcessor& other) const {
    const GrClampedGradientEffect& that = other.cast<GrClampedGradientEffect>();
    (void)that;
    if (leftBorderColor != that.leftBorderColor) return false;
    if (rightBorderColor != that.rightBorderColor) return false;
    if (makePremul != that.makePremul) return false;
    if (colorsAreOpaque != that.colorsAreOpaque) return false;
    return true;
}
GrClampedGradientEffect::GrClampedGradientEffect(const GrClampedGradientEffect& src)
        : INHERITED(kGrClampedGradientEffect_ClassID, src.optimizationFlags())
        , leftBorderColor(src.leftBorderColor)
        , rightBorderColor(src.rightBorderColor)
        , makePremul(src.makePremul)
        , colorsAreOpaque(src.colorsAreOpaque) {
    this->cloneAndRegisterAllChildProcessors(src);
}
std::unique_ptr<GrFragmentProcessor> GrClampedGradientEffect::clone() const {
    return std::make_unique<GrClampedGradientEffect>(*this);
}