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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.
*/
/**************************************************************************************************
*** This file was autogenerated from GrAARectEffect.fp; do not modify.
**************************************************************************************************/
#include "GrAARectEffect.h"
#include "glsl/GrGLSLFragmentProcessor.h"
#include "glsl/GrGLSLFragmentShaderBuilder.h"
#include "glsl/GrGLSLProgramBuilder.h"
#include "GrTexture.h"
#include "SkSLCPP.h"
#include "SkSLUtil.h"
class GrGLSLAARectEffect : public GrGLSLFragmentProcessor {
public:
GrGLSLAARectEffect() {}
void emitCode(EmitArgs& args) override {
GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
const GrAARectEffect& _outer = args.fFp.cast<GrAARectEffect>();
(void)_outer;
auto edgeType = _outer.edgeType();
(void)edgeType;
auto rect = _outer.rect();
(void)rect;
prevRect = float4(-1.0);
fRectUniformVar = args.fUniformHandler->addUniform(
kFragment_GrShaderFlag, kFloat4_GrSLType, kDefault_GrSLPrecision, "rectUniform");
fragBuilder->codeAppendf(
"float4 prevRect = float4(%f, %f, %f, %f);\nhalf alpha;\n@switch (%d) {\n case "
"0:\n case 2:\n alpha = half(all(greaterThan(float4(sk_FragCoord.xy, "
"%s.zw), float4(%s.xy, sk_FragCoord.xy))) ? 1 : 0);\n break;\n "
"default:\n half xSub, ySub;\n xSub = half(min(sk_FragCoord.x - "
"%s.x, 0.0));\n xSub += half(min(%s.z - sk_FragCoord.x, 0.0));\n "
"ySub = half(min(sk_FragCoord.y - %s.y, 0.0));\n ySub += half(min(%s.w - "
"sk_FragCoord.y, 0.0));\n alpha = half((1",
prevRect.left(),
prevRect.top(),
prevRect.right(),
prevRect.bottom(),
(int)_outer.edgeType(),
args.fUniformHandler->getUniformCStr(fRectUniformVar),
args.fUniformHandler->getUniformCStr(fRectUniformVar),
args.fUniformHandler->getUniformCStr(fRectUniformVar),
args.fUniformHandler->getUniformCStr(fRectUniformVar),
args.fUniformHandler->getUniformCStr(fRectUniformVar),
args.fUniformHandler->getUniformCStr(fRectUniformVar));
fragBuilder->codeAppendf(
".0 + max(float(xSub), -1.0)) * (1.0 + max(float(ySub), -1.0)));\n}\n@if (%d == 2 "
"|| %d == 3) {\n alpha = half(1.0 - float(alpha));\n}\n%s = %s * alpha;\n",
(int)_outer.edgeType(),
(int)_outer.edgeType(),
args.fOutputColor,
args.fInputColor ? args.fInputColor : "half4(1)");
}
private:
void onSetData(const GrGLSLProgramDataManager& pdman,
const GrFragmentProcessor& _proc) override {
const GrAARectEffect& _outer = _proc.cast<GrAARectEffect>();
auto edgeType = _outer.edgeType();
(void)edgeType;
auto rect = _outer.rect();
(void)rect;
UniformHandle& rectUniform = fRectUniformVar;
(void)rectUniform;
const SkRect& newRect = GrProcessorEdgeTypeIsAA(edgeType) ? rect.makeInset(.5f, .5f) : rect;
if (newRect != prevRect) {
pdman.set4f(rectUniform, newRect.fLeft, newRect.fTop, newRect.fRight, newRect.fBottom);
prevRect = newRect;
}
}
SkRect prevRect = float4(0);
UniformHandle fRectUniformVar;
};
GrGLSLFragmentProcessor* GrAARectEffect::onCreateGLSLInstance() const {
return new GrGLSLAARectEffect();
}
void GrAARectEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps,
GrProcessorKeyBuilder* b) const {
b->add32((int32_t)fEdgeType);
}
bool GrAARectEffect::onIsEqual(const GrFragmentProcessor& other) const {
const GrAARectEffect& that = other.cast<GrAARectEffect>();
(void)that;
if (fEdgeType != that.fEdgeType) return false;
if (fRect != that.fRect) return false;
return true;
}
GrAARectEffect::GrAARectEffect(const GrAARectEffect& src)
: INHERITED(kGrAARectEffect_ClassID, src.optimizationFlags())
, fEdgeType(src.fEdgeType)
, fRect(src.fRect) {}
std::unique_ptr<GrFragmentProcessor> GrAARectEffect::clone() const {
return std::unique_ptr<GrFragmentProcessor>(new GrAARectEffect(*this));
}
GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrAARectEffect);
#if GR_TEST_UTILS
std::unique_ptr<GrFragmentProcessor> GrAARectEffect::TestCreate(GrProcessorTestData* d) {
SkRect rect = SkRect::MakeLTRB(d->fRandom->nextSScalar1(),
d->fRandom->nextSScalar1(),
d->fRandom->nextSScalar1(),
d->fRandom->nextSScalar1());
std::unique_ptr<GrFragmentProcessor> fp;
do {
GrClipEdgeType edgeType =
static_cast<GrClipEdgeType>(d->fRandom->nextULessThan(kGrClipEdgeTypeCnt));
fp = GrAARectEffect::Make(edgeType, rect);
} while (nullptr == fp);
return fp;
}
#endif
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