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Side by Side Diff: src/effects/GrCircleBlurFragmentProcessor.cpp

Issue 1438003003: Move all ShaderBuilder files to GLSL (Closed) Base URL: https://skia.googlesource.com/skia.git@glslProgBuild
Patch Set: nits Created 5 years, 1 month ago
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1 1
2 /* 2 /*
3 * Copyright 2015 Google Inc. 3 * Copyright 2015 Google Inc.
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 #include "GrCircleBlurFragmentProcessor.h" 9 #include "GrCircleBlurFragmentProcessor.h"
10 10
11 #if SK_SUPPORT_GPU 11 #if SK_SUPPORT_GPU
12 12
13 #include "GrContext.h" 13 #include "GrContext.h"
14 #include "GrTextureProvider.h" 14 #include "GrTextureProvider.h"
15 15
16 #include "gl/GrGLFragmentProcessor.h" 16 #include "gl/GrGLFragmentProcessor.h"
17 #include "gl/builders/GrGLProgramBuilder.h" 17 #include "glsl/GrGLSLFragmentShaderBuilder.h"
18 #include "glsl/GrGLSLProgramBuilder.h"
18 #include "glsl/GrGLSLProgramDataManager.h" 19 #include "glsl/GrGLSLProgramDataManager.h"
19 20
20 class GrGLCircleBlurFragmentProcessor : public GrGLFragmentProcessor { 21 class GrGLCircleBlurFragmentProcessor : public GrGLFragmentProcessor {
21 public: 22 public:
22 GrGLCircleBlurFragmentProcessor(const GrProcessor&) {} 23 GrGLCircleBlurFragmentProcessor(const GrProcessor&) {}
23 void emitCode(EmitArgs&) override; 24 void emitCode(EmitArgs&) override;
24 25
25 protected: 26 protected:
26 void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override ; 27 void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override ;
27 28
28 private: 29 private:
29 GrGLSLProgramDataManager::UniformHandle fDataUniform; 30 GrGLSLProgramDataManager::UniformHandle fDataUniform;
30 31
31 typedef GrGLFragmentProcessor INHERITED; 32 typedef GrGLFragmentProcessor INHERITED;
32 }; 33 };
33 34
34 void GrGLCircleBlurFragmentProcessor::emitCode(EmitArgs& args) { 35 void GrGLCircleBlurFragmentProcessor::emitCode(EmitArgs& args) {
35 36
36 const char *dataName; 37 const char *dataName;
37 38
38 // The data is formatted as: 39 // The data is formatted as:
39 // x,y - the center of the circle 40 // x,y - the center of the circle
40 // z - the distance at which the intensity starts falling off (e.g., the start of the table) 41 // z - the distance at which the intensity starts falling off (e.g., the start of the table)
41 // w - the size of the profile texture 42 // w - the size of the profile texture
42 fDataUniform = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visib ility, 43 fDataUniform = args.fBuilder->addUniform(GrGLSLProgramBuilder::kFragment_Vis ibility,
43 kVec4f_GrSLType, 44 kVec4f_GrSLType,
44 kDefault_GrSLPrecision, 45 kDefault_GrSLPrecision,
45 "data", 46 "data",
46 &dataName); 47 &dataName);
47 48
48 GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder(); 49 GrGLSLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder() ;
49 const char *fragmentPos = fsBuilder->fragmentPosition(); 50 const char *fragmentPos = fsBuilder->fragmentPosition();
50 51
51 if (args.fInputColor) { 52 if (args.fInputColor) {
52 fsBuilder->codeAppendf("vec4 src=%s;", args.fInputColor); 53 fsBuilder->codeAppendf("vec4 src=%s;", args.fInputColor);
53 } else { 54 } else {
54 fsBuilder->codeAppendf("vec4 src=vec4(1);"); 55 fsBuilder->codeAppendf("vec4 src=vec4(1);");
55 } 56 }
56 57
57 fsBuilder->codeAppendf("vec2 vec = %s.xy - %s.xy;", fragmentPos, dataName); 58 fsBuilder->codeAppendf("vec2 vec = %s.xy - %s.xy;", fragmentPos, dataName);
58 fsBuilder->codeAppendf("float dist = (length(vec) - %s.z + 0.5) / %s.w;", da taName, dataName); 59 fsBuilder->codeAppendf("float dist = (length(vec) - %s.z + 0.5) / %s.w;", da taName, dataName);
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251 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrCircleBlurFragmentProcessor); 252 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrCircleBlurFragmentProcessor);
252 253
253 const GrFragmentProcessor* GrCircleBlurFragmentProcessor::TestCreate(GrProcessor TestData* d) { 254 const GrFragmentProcessor* GrCircleBlurFragmentProcessor::TestCreate(GrProcessor TestData* d) {
254 SkScalar wh = d->fRandom->nextRangeScalar(100.f, 1000.f); 255 SkScalar wh = d->fRandom->nextRangeScalar(100.f, 1000.f);
255 SkScalar sigma = d->fRandom->nextRangeF(1.f,10.f); 256 SkScalar sigma = d->fRandom->nextRangeF(1.f,10.f);
256 SkRect circle = SkRect::MakeWH(wh, wh); 257 SkRect circle = SkRect::MakeWH(wh, wh);
257 return GrCircleBlurFragmentProcessor::Create(d->fContext->textureProvider(), circle, sigma); 258 return GrCircleBlurFragmentProcessor::Create(d->fContext->textureProvider(), circle, sigma);
258 } 259 }
259 260
260 #endif 261 #endif
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