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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 GrBlurredEdgeFragmentProcessor.fp; do not modify.
*/
#include "GrBlurredEdgeFragmentProcessor.h"
#if SK_SUPPORT_GPU
#include "glsl/GrGLSLFragmentProcessor.h"
#include "glsl/GrGLSLFragmentShaderBuilder.h"
#include "glsl/GrGLSLProgramBuilder.h"
#include "SkSLCPP.h"
#include "SkSLUtil.h"
class GrGLSLBlurredEdgeFragmentProcessor : public GrGLSLFragmentProcessor {
public:
GrGLSLBlurredEdgeFragmentProcessor() {}
void emitCode(EmitArgs& args) override {
GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
const GrBlurredEdgeFragmentProcessor& _outer =
args.fFp.cast<GrBlurredEdgeFragmentProcessor>();
(void)_outer;
auto mode = _outer.mode();
(void)mode;
fragBuilder->codeAppendf(
"half factor = half(1.0 - float(%s.w));\n@switch (%d) {\n case 0:\n "
"factor = half(exp(float(float(-factor * factor) * 4.0)) - "
"0.017999999999999999);\n break;\n case 1:\n factor = "
"half(smoothstep(1.0, 0.0, float(factor)));\n break;\n}\n%s = "
"half4(factor);\n",
args.fInputColor ? args.fInputColor : "half4(1)", (int)_outer.mode(),
args.fOutputColor);
}
private:
void onSetData(const GrGLSLProgramDataManager& pdman,
const GrFragmentProcessor& _proc) override {}
};
GrGLSLFragmentProcessor* GrBlurredEdgeFragmentProcessor::onCreateGLSLInstance() const {
return new GrGLSLBlurredEdgeFragmentProcessor();
}
void GrBlurredEdgeFragmentProcessor::onGetGLSLProcessorKey(const GrShaderCaps& caps,
GrProcessorKeyBuilder* b) const {
b->add32((int32_t)fMode);
}
bool GrBlurredEdgeFragmentProcessor::onIsEqual(const GrFragmentProcessor& other) const {
const GrBlurredEdgeFragmentProcessor& that = other.cast<GrBlurredEdgeFragmentProcessor>();
(void)that;
if (fMode != that.fMode) return false;
return true;
}
GrBlurredEdgeFragmentProcessor::GrBlurredEdgeFragmentProcessor(
const GrBlurredEdgeFragmentProcessor& src)
: INHERITED(kGrBlurredEdgeFragmentProcessor_ClassID, src.optimizationFlags())
, fMode(src.fMode) {}
std::unique_ptr<GrFragmentProcessor> GrBlurredEdgeFragmentProcessor::clone() const {
return std::unique_ptr<GrFragmentProcessor>(new GrBlurredEdgeFragmentProcessor(*this));
}
#endif
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