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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 "glsl/GrGLSLFragmentProcessor.h" |
17 #include "glsl/GrGLSLFragmentShaderBuilder.h" | 17 #include "glsl/GrGLSLFragmentShaderBuilder.h" |
18 #include "glsl/GrGLSLProgramBuilder.h" | 18 #include "glsl/GrGLSLProgramBuilder.h" |
19 #include "glsl/GrGLSLProgramDataManager.h" | 19 #include "glsl/GrGLSLProgramDataManager.h" |
20 | 20 |
21 class GrGLCircleBlurFragmentProcessor : public GrGLFragmentProcessor { | 21 class GrGLCircleBlurFragmentProcessor : public GrGLSLFragmentProcessor { |
22 public: | 22 public: |
23 GrGLCircleBlurFragmentProcessor(const GrProcessor&) {} | 23 GrGLCircleBlurFragmentProcessor(const GrProcessor&) {} |
24 void emitCode(EmitArgs&) override; | 24 void emitCode(EmitArgs&) override; |
25 | 25 |
26 protected: | 26 protected: |
27 void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override
; | 27 void onSetData(const GrGLSLProgramDataManager&, const GrProcessor&) override
; |
28 | 28 |
29 private: | 29 private: |
30 GrGLSLProgramDataManager::UniformHandle fDataUniform; | 30 GrGLSLProgramDataManager::UniformHandle fDataUniform; |
31 | 31 |
32 typedef GrGLFragmentProcessor INHERITED; | 32 typedef GrGLSLFragmentProcessor INHERITED; |
33 }; | 33 }; |
34 | 34 |
35 void GrGLCircleBlurFragmentProcessor::emitCode(EmitArgs& args) { | 35 void GrGLCircleBlurFragmentProcessor::emitCode(EmitArgs& args) { |
36 | 36 |
37 const char *dataName; | 37 const char *dataName; |
38 | 38 |
39 // The data is formatted as: | 39 // The data is formatted as: |
40 // x,y - the center of the circle | 40 // x,y - the center of the circle |
41 // 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) |
42 // w - the size of the profile texture | 42 // w - the size of the profile texture |
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86 GrTexture* blurProf
ile) | 86 GrTexture* blurProf
ile) |
87 : fCircle(circle) | 87 : fCircle(circle) |
88 , fSigma(sigma) | 88 , fSigma(sigma) |
89 , fOffset(offset) | 89 , fOffset(offset) |
90 , fBlurProfileAccess(blurProfile, GrTextureParams::kBilerp_FilterMode) { | 90 , fBlurProfileAccess(blurProfile, GrTextureParams::kBilerp_FilterMode) { |
91 this->initClassID<GrCircleBlurFragmentProcessor>(); | 91 this->initClassID<GrCircleBlurFragmentProcessor>(); |
92 this->addTextureAccess(&fBlurProfileAccess); | 92 this->addTextureAccess(&fBlurProfileAccess); |
93 this->setWillReadFragmentPosition(); | 93 this->setWillReadFragmentPosition(); |
94 } | 94 } |
95 | 95 |
96 GrGLFragmentProcessor* GrCircleBlurFragmentProcessor::onCreateGLInstance() const
{ | 96 GrGLSLFragmentProcessor* GrCircleBlurFragmentProcessor::onCreateGLInstance() con
st { |
97 return new GrGLCircleBlurFragmentProcessor(*this); | 97 return new GrGLCircleBlurFragmentProcessor(*this); |
98 } | 98 } |
99 | 99 |
100 void GrCircleBlurFragmentProcessor::onGetGLProcessorKey(const GrGLSLCaps& caps, | 100 void GrCircleBlurFragmentProcessor::onGetGLProcessorKey(const GrGLSLCaps& caps, |
101 GrProcessorKeyBuilder* b
) const { | 101 GrProcessorKeyBuilder* b
) const { |
102 GrGLCircleBlurFragmentProcessor::GenKey(*this, caps, b); | 102 GrGLCircleBlurFragmentProcessor::GenKey(*this, caps, b); |
103 } | 103 } |
104 | 104 |
105 void GrCircleBlurFragmentProcessor::onComputeInvariantOutput(GrInvariantOutput*
inout) const { | 105 void GrCircleBlurFragmentProcessor::onComputeInvariantOutput(GrInvariantOutput*
inout) const { |
106 inout->mulByUnknownSingleComponent(); | 106 inout->mulByUnknownSingleComponent(); |
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252 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrCircleBlurFragmentProcessor); | 252 GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrCircleBlurFragmentProcessor); |
253 | 253 |
254 const GrFragmentProcessor* GrCircleBlurFragmentProcessor::TestCreate(GrProcessor
TestData* d) { | 254 const GrFragmentProcessor* GrCircleBlurFragmentProcessor::TestCreate(GrProcessor
TestData* d) { |
255 SkScalar wh = d->fRandom->nextRangeScalar(100.f, 1000.f); | 255 SkScalar wh = d->fRandom->nextRangeScalar(100.f, 1000.f); |
256 SkScalar sigma = d->fRandom->nextRangeF(1.f,10.f); | 256 SkScalar sigma = d->fRandom->nextRangeF(1.f,10.f); |
257 SkRect circle = SkRect::MakeWH(wh, wh); | 257 SkRect circle = SkRect::MakeWH(wh, wh); |
258 return GrCircleBlurFragmentProcessor::Create(d->fContext->textureProvider(),
circle, sigma); | 258 return GrCircleBlurFragmentProcessor::Create(d->fContext->textureProvider(),
circle, sigma); |
259 } | 259 } |
260 | 260 |
261 #endif | 261 #endif |
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