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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "GrConvolutionEffect.h" | 8 #include "GrConvolutionEffect.h" |
9 #include "gl/GrGLEffect.h" | 9 #include "gl/GrGLEffect.h" |
10 #include "gl/GrGLSL.h" | 10 #include "gl/GrGLSL.h" |
11 #include "gl/GrGLTexture.h" | 11 #include "gl/GrGLTexture.h" |
12 #include "GrTBackendEffectFactory.h" | 12 #include "GrTBackendEffectFactory.h" |
13 | 13 |
14 // For brevity | 14 // For brevity |
15 typedef GrGLUniformManager::UniformHandle UniformHandle; | 15 typedef GrGLUniformManager::UniformHandle UniformHandle; |
16 | 16 |
17 class GrGLConvolutionEffect : public GrGLEffect { | 17 class GrGLConvolutionEffect : public GrGLEffect { |
18 public: | 18 public: |
19 GrGLConvolutionEffect(const GrBackendEffectFactory&, const GrDrawEffect&); | 19 GrGLConvolutionEffect(const GrBackendEffectFactory&, const GrDrawEffect&); |
20 | 20 |
21 virtual void emitCode(GrGLShaderBuilder*, | 21 virtual void emitCode(GrGLShaderBuilder*, |
22 const GrDrawEffect&, | 22 const GrDrawEffect&, |
23 EffectKey, | 23 EffectKey, |
24 const char* outputColor, | 24 const char* outputColor, |
25 const char* inputColor, | 25 const GrGLSLExpr4& inputColor, |
26 const TransformedCoordsArray&, | 26 const TransformedCoordsArray&, |
27 const TextureSamplerArray&) SK_OVERRIDE; | 27 const TextureSamplerArray&) SK_OVERRIDE; |
28 | 28 |
29 virtual void setData(const GrGLUniformManager& uman, const GrDrawEffect&) SK
_OVERRIDE; | 29 virtual void setData(const GrGLUniformManager& uman, const GrDrawEffect&) SK
_OVERRIDE; |
30 | 30 |
31 static inline EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&); | 31 static inline EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&); |
32 | 32 |
33 private: | 33 private: |
34 int width() const { return Gr1DKernelEffect::WidthFromRadius(fRadius); } | 34 int width() const { return Gr1DKernelEffect::WidthFromRadius(fRadius); } |
35 bool useBounds() const { return fUseBounds; } | 35 bool useBounds() const { return fUseBounds; } |
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51 const GrConvolutionEffect& c = drawEffect.castEffect<GrConvolutionEffect>(); | 51 const GrConvolutionEffect& c = drawEffect.castEffect<GrConvolutionEffect>(); |
52 fRadius = c.radius(); | 52 fRadius = c.radius(); |
53 fUseBounds = c.useBounds(); | 53 fUseBounds = c.useBounds(); |
54 fDirection = c.direction(); | 54 fDirection = c.direction(); |
55 } | 55 } |
56 | 56 |
57 void GrGLConvolutionEffect::emitCode(GrGLShaderBuilder* builder, | 57 void GrGLConvolutionEffect::emitCode(GrGLShaderBuilder* builder, |
58 const GrDrawEffect&, | 58 const GrDrawEffect&, |
59 EffectKey key, | 59 EffectKey key, |
60 const char* outputColor, | 60 const char* outputColor, |
61 const char* inputColor, | 61 const GrGLSLExpr4& inputColor, |
62 const TransformedCoordsArray& coords, | 62 const TransformedCoordsArray& coords, |
63 const TextureSamplerArray& samplers) { | 63 const TextureSamplerArray& samplers) { |
64 SkString coords2D = builder->ensureFSCoords2D(coords, 0); | 64 SkString coords2D = builder->ensureFSCoords2D(coords, 0); |
65 fImageIncrementUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibi
lity, | 65 fImageIncrementUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibi
lity, |
66 kVec2f_GrSLType, "ImageIncrement"); | 66 kVec2f_GrSLType, "ImageIncrement"); |
67 if (this->useBounds()) { | 67 if (this->useBounds()) { |
68 fBoundsUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility
, | 68 fBoundsUni = builder->addUniform(GrGLShaderBuilder::kFragment_Visibility
, |
69 kVec2f_GrSLType, "Bounds"); | 69 kVec2f_GrSLType, "Bounds"); |
70 } | 70 } |
71 fKernelUni = builder->addUniformArray(GrGLShaderBuilder::kFragment_Visibilit
y, | 71 fKernelUni = builder->addUniformArray(GrGLShaderBuilder::kFragment_Visibilit
y, |
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229 } | 229 } |
230 | 230 |
231 bool useBounds = random->nextBool(); | 231 bool useBounds = random->nextBool(); |
232 return GrConvolutionEffect::Create(textures[texIdx], | 232 return GrConvolutionEffect::Create(textures[texIdx], |
233 dir, | 233 dir, |
234 radius, | 234 radius, |
235 kernel, | 235 kernel, |
236 useBounds, | 236 useBounds, |
237 bounds); | 237 bounds); |
238 } | 238 } |
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