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/*
* Copyright 2017 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 GrRectBlurEffect.fp; do not modify.
*/
#include "GrRectBlurEffect.h"
#if SK_SUPPORT_GPU
#include "glsl/GrGLSLFragmentProcessor.h"
#include "glsl/GrGLSLFragmentShaderBuilder.h"
#include "glsl/GrGLSLProgramBuilder.h"
#include "GrTexture.h"
#include "SkSLCPP.h"
#include "SkSLUtil.h"
class GrGLSLRectBlurEffect : public GrGLSLFragmentProcessor {
public:
GrGLSLRectBlurEffect() {}
void emitCode(EmitArgs& args) override {
GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
const GrRectBlurEffect& _outer = args.fFp.cast<GrRectBlurEffect>();
(void)_outer;
auto rect = _outer.rect();
(void)rect;
auto sigma = _outer.sigma();
(void)sigma;
highPrecision = ((((abs(rect.left()) > 16000.0 || abs(rect.top()) > 16000.0) ||
abs(rect.right()) > 16000.0) ||
abs(rect.bottom()) > 16000.0) ||
abs(rect.right() - rect.left()) > 16000.0) ||
abs(rect.bottom() - rect.top()) > 16000.0;
fRectVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kFloat4_GrSLType,
kDefault_GrSLPrecision, "rect");
if (!highPrecision) {
fProxyRectHalfVar =
args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf4_GrSLType,
kDefault_GrSLPrecision, "proxyRectHalf");
}
if (highPrecision) {
fProxyRectFloatVar =
args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kFloat4_GrSLType,
kDefault_GrSLPrecision, "proxyRectFloat");
}
fProfileSizeVar = args.fUniformHandler->addUniform(kFragment_GrShaderFlag, kHalf_GrSLType,
kDefault_GrSLPrecision, "profileSize");
fragBuilder->codeAppendf(
"bool highPrecision = %s;\n@if (highPrecision) {\n float2 translatedPos = "
"sk_FragCoord.xy - %s.xy;\n float width = %s.z - %s.x;\n float height = %s.w "
"- %s.y;\n float2 smallDims = float2(width - float(%s), height - float(%s));\n "
" float center = 2.0 * floor(float(float(%s / 2.0) + 0.25)) - 1.0;\n float2 wh "
"= smallDims - float2(center, center);\n half hcoord = "
"half((abs(translatedPos.x - 0.5 * width) - 0.5 * wh.x) / float(%s));\n half "
"hlookup = texture(%s, float2(float(hcoord), 0.5)).%s.w",
(highPrecision ? "true" : "false"), args.fUniformHandler->getUniformCStr(fRectVar),
args.fUniformHandler->getUniformCStr(fRectVar),
args.fUniformHandler->getUniformCStr(fRectVar),
args.fUniformHandler->getUniformCStr(fRectVar),
args.fUniformHandler->getUniformCStr(fRectVar),
args.fUniformHandler->getUniformCStr(fProfileSizeVar),
args.fUniformHandler->getUniformCStr(fProfileSizeVar),
args.fUniformHandler->getUniformCStr(fProfileSizeVar),
args.fUniformHandler->getUniformCStr(fProfileSizeVar),
fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(),
fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str());
fragBuilder->codeAppendf(
";\n half vcoord = half((abs(translatedPos.y - 0.5 * height) - 0.5 * wh.y) / "
"float(%s));\n half vlookup = texture(%s, float2(float(vcoord), 0.5)).%s.w;\n "
" %s = (%s * hlookup) * vlookup;\n} else {\n half2 translatedPos = "
"half2(sk_FragCoord.xy - %s.xy);\n half width = half(%s.z - %s.x);\n half "
"height = half(%s.w - %s.y);\n half2 smallDims = half2(width - %s, height - "
"%s);\n half center = half(2.0 * floor(float(float(%s / 2.0) + 0.25)) - 1.0);\n "
" half2 wh = smallDims - half2(float2(floa",
args.fUniformHandler->getUniformCStr(fProfileSizeVar),
fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(),
fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str(),
args.fOutputColor, args.fInputColor ? args.fInputColor : "half4(1)",
args.fUniformHandler->getUniformCStr(fRectVar),
args.fUniformHandler->getUniformCStr(fRectVar),
args.fUniformHandler->getUniformCStr(fRectVar),
args.fUniformHandler->getUniformCStr(fRectVar),
args.fUniformHandler->getUniformCStr(fRectVar),
args.fUniformHandler->getUniformCStr(fProfileSizeVar),
args.fUniformHandler->getUniformCStr(fProfileSizeVar),
args.fUniformHandler->getUniformCStr(fProfileSizeVar));
fragBuilder->codeAppendf(
"t(center), float(center)));\n half hcoord = "
"half((abs(float(float(translatedPos.x) - 0.5 * float(width))) - 0.5 * "
"float(wh.x)) / float(%s));\n half hlookup = texture(%s, float2(float(hcoord), "
"0.5)).%s.w;\n half vcoord = half((abs(float(float(translatedPos.y) - 0.5 * "
"float(height))) - 0.5 * float(wh.y)) / float(%s));\n half vlookup = "
"texture(%s, float2(float(vcoord), 0.5)).%s.w;\n %s = (%s * hlookup) * "
"vlookup;\n}\n",
args.fUniformHandler->getUniformCStr(fProfileSizeVar),
fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(),
fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str(),
args.fUniformHandler->getUniformCStr(fProfileSizeVar),
fragBuilder->getProgramBuilder()->samplerVariable(args.fTexSamplers[0]).c_str(),
fragBuilder->getProgramBuilder()->samplerSwizzle(args.fTexSamplers[0]).c_str(),
args.fOutputColor, args.fInputColor ? args.fInputColor : "half4(1)");
}
private:
void onSetData(const GrGLSLProgramDataManager& pdman,
const GrFragmentProcessor& _proc) override {
const GrRectBlurEffect& _outer = _proc.cast<GrRectBlurEffect>();
{
const SkRect rectValue = _outer.rect();
pdman.set4fv(fRectVar, 1, (float*)&rectValue);
}
UniformHandle& rect = fRectVar;
(void)rect;
auto sigma = _outer.sigma();
(void)sigma;
GrSurfaceProxy& blurProfileProxy = *_outer.textureSampler(0).proxy();
GrTexture& blurProfile = *blurProfileProxy.priv().peekTexture();
(void)blurProfile;
UniformHandle& proxyRectHalf = fProxyRectHalfVar;
(void)proxyRectHalf;
UniformHandle& proxyRectFloat = fProxyRectFloatVar;
(void)proxyRectFloat;
UniformHandle& profileSize = fProfileSizeVar;
(void)profileSize;
pdman.set1f(profileSize, SkScalarCeilToScalar(6 * sigma));
}
bool highPrecision = false;
UniformHandle fProxyRectHalfVar;
UniformHandle fProxyRectFloatVar;
UniformHandle fProfileSizeVar;
UniformHandle fRectVar;
};
GrGLSLFragmentProcessor* GrRectBlurEffect::onCreateGLSLInstance() const {
return new GrGLSLRectBlurEffect();
}
void GrRectBlurEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps,
GrProcessorKeyBuilder* b) const {}
bool GrRectBlurEffect::onIsEqual(const GrFragmentProcessor& other) const {
const GrRectBlurEffect& that = other.cast<GrRectBlurEffect>();
(void)that;
if (fRect != that.fRect) return false;
if (fSigma != that.fSigma) return false;
if (fBlurProfile != that.fBlurProfile) return false;
return true;
}
GrRectBlurEffect::GrRectBlurEffect(const GrRectBlurEffect& src)
: INHERITED(kGrRectBlurEffect_ClassID, src.optimizationFlags())
, fRect(src.fRect)
, fSigma(src.fSigma)
, fBlurProfile(src.fBlurProfile) {
this->addTextureSampler(&fBlurProfile);
}
std::unique_ptr<GrFragmentProcessor> GrRectBlurEffect::clone() const {
return std::unique_ptr<GrFragmentProcessor>(new GrRectBlurEffect(*this));
}
GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrRectBlurEffect);
#if GR_TEST_UTILS
std::unique_ptr<GrFragmentProcessor> GrRectBlurEffect::TestCreate(GrProcessorTestData* data) {
float sigma = data->fRandom->nextRangeF(3, 8);
float width = data->fRandom->nextRangeF(200, 300);
float height = data->fRandom->nextRangeF(200, 300);
return GrRectBlurEffect::Make(data->resourceProvider(), SkRect::MakeWH(width, height), sigma);
}
#endif
#endif
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