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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "GrYUVtoRGBEffect.h" | 8 #include "GrYUVtoRGBEffect.h" |
9 | 9 |
10 #include "GrCoordTransform.h" | 10 #include "GrCoordTransform.h" |
11 #include "GrInvariantOutput.h" | 11 #include "GrInvariantOutput.h" |
12 #include "GrProcessor.h" | 12 #include "GrProcessor.h" |
13 #include "gl/GrGLProcessor.h" | 13 #include "gl/GrGLProcessor.h" |
14 #include "gl/builders/GrGLProgramBuilder.h" | 14 #include "gl/builders/GrGLProgramBuilder.h" |
15 | 15 |
16 namespace { | 16 namespace { |
17 | 17 |
18 class YUVtoRGBEffect : public GrFragmentProcessor { | 18 class YUVtoRGBEffect : public GrFragmentProcessor { |
19 public: | 19 public: |
20 static GrFragmentProcessor* Create(GrTexture* yTexture, GrTexture* uTexture, | 20 static GrFragmentProcessor* Create(GrTexture* yTexture, GrTexture* uTexture, |
21 GrTexture* vTexture, SkYUVColorSpace colo
rSpace) { | 21 GrTexture* vTexture, SkYUVColorSpace colo
rSpace) { |
22 return SkNEW_ARGS(YUVtoRGBEffect, (yTexture, uTexture, vTexture, colorSp
ace)); | 22 return SkNEW_ARGS(YUVtoRGBEffect, (yTexture, uTexture, vTexture, colorSp
ace)); |
23 } | 23 } |
24 | 24 |
25 virtual const char* name() const SK_OVERRIDE { return "YUV to RGB"; } | 25 const char* name() const SK_OVERRIDE { return "YUV to RGB"; } |
26 | 26 |
27 SkYUVColorSpace getColorSpace() const { | 27 SkYUVColorSpace getColorSpace() const { |
28 return fColorSpace; | 28 return fColorSpace; |
29 } | 29 } |
30 | 30 |
31 class GLProcessor : public GrGLFragmentProcessor { | 31 class GLProcessor : public GrGLFragmentProcessor { |
32 public: | 32 public: |
33 static const GrGLfloat kJPEGConversionMatrix[16]; | 33 static const GrGLfloat kJPEGConversionMatrix[16]; |
34 static const GrGLfloat kRec601ConversionMatrix[16]; | 34 static const GrGLfloat kRec601ConversionMatrix[16]; |
35 | 35 |
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76 GrGLProgramDataManager::UniformHandle fMatrixUni; | 76 GrGLProgramDataManager::UniformHandle fMatrixUni; |
77 | 77 |
78 typedef GrGLFragmentProcessor INHERITED; | 78 typedef GrGLFragmentProcessor INHERITED; |
79 }; | 79 }; |
80 | 80 |
81 virtual void getGLProcessorKey(const GrGLCaps& caps, | 81 virtual void getGLProcessorKey(const GrGLCaps& caps, |
82 GrProcessorKeyBuilder* b) const SK_OVERRIDE { | 82 GrProcessorKeyBuilder* b) const SK_OVERRIDE { |
83 GLProcessor::GenKey(*this, caps, b); | 83 GLProcessor::GenKey(*this, caps, b); |
84 } | 84 } |
85 | 85 |
86 virtual GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE { | 86 GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE { |
87 return SkNEW_ARGS(GLProcessor, (*this)); | 87 return SkNEW_ARGS(GLProcessor, (*this)); |
88 } | 88 } |
89 | 89 |
90 private: | 90 private: |
91 YUVtoRGBEffect(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vTexture
, | 91 YUVtoRGBEffect(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vTexture
, |
92 SkYUVColorSpace colorSpace) | 92 SkYUVColorSpace colorSpace) |
93 : fCoordTransform(kLocal_GrCoordSet, | 93 : fCoordTransform(kLocal_GrCoordSet, |
94 GrCoordTransform::MakeDivByTextureWHMatrix(yTexture), | 94 GrCoordTransform::MakeDivByTextureWHMatrix(yTexture), |
95 yTexture, GrTextureParams::kNone_FilterMode) | 95 yTexture, GrTextureParams::kNone_FilterMode) |
96 , fYAccess(yTexture) | 96 , fYAccess(yTexture) |
97 , fUAccess(uTexture) | 97 , fUAccess(uTexture) |
98 , fVAccess(vTexture) | 98 , fVAccess(vTexture) |
99 , fColorSpace(colorSpace) { | 99 , fColorSpace(colorSpace) { |
100 this->initClassID<YUVtoRGBEffect>(); | 100 this->initClassID<YUVtoRGBEffect>(); |
101 this->addCoordTransform(&fCoordTransform); | 101 this->addCoordTransform(&fCoordTransform); |
102 this->addTextureAccess(&fYAccess); | 102 this->addTextureAccess(&fYAccess); |
103 this->addTextureAccess(&fUAccess); | 103 this->addTextureAccess(&fUAccess); |
104 this->addTextureAccess(&fVAccess); | 104 this->addTextureAccess(&fVAccess); |
105 } | 105 } |
106 | 106 |
107 virtual bool onIsEqual(const GrFragmentProcessor& sBase) const SK_OVERRIDE { | 107 bool onIsEqual(const GrFragmentProcessor& sBase) const SK_OVERRIDE { |
108 const YUVtoRGBEffect& s = sBase.cast<YUVtoRGBEffect>(); | 108 const YUVtoRGBEffect& s = sBase.cast<YUVtoRGBEffect>(); |
109 return fColorSpace == s.getColorSpace(); | 109 return fColorSpace == s.getColorSpace(); |
110 } | 110 } |
111 | 111 |
112 virtual void onComputeInvariantOutput(GrInvariantOutput* inout) const SK_OVE
RRIDE { | 112 void onComputeInvariantOutput(GrInvariantOutput* inout) const SK_OVERRIDE { |
113 // YUV is opaque | 113 // YUV is opaque |
114 inout->setToOther(kA_GrColorComponentFlag, 0xFF << GrColor_SHIFT_A, | 114 inout->setToOther(kA_GrColorComponentFlag, 0xFF << GrColor_SHIFT_A, |
115 GrInvariantOutput::kWillNot_ReadInput); | 115 GrInvariantOutput::kWillNot_ReadInput); |
116 } | 116 } |
117 | 117 |
118 GrCoordTransform fCoordTransform; | 118 GrCoordTransform fCoordTransform; |
119 GrTextureAccess fYAccess; | 119 GrTextureAccess fYAccess; |
120 GrTextureAccess fUAccess; | 120 GrTextureAccess fUAccess; |
121 GrTextureAccess fVAccess; | 121 GrTextureAccess fVAccess; |
122 SkYUVColorSpace fColorSpace; | 122 SkYUVColorSpace fColorSpace; |
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136 0.0f, 0.0f, 0.0f, 1.0}; | 136 0.0f, 0.0f, 0.0f, 1.0}; |
137 } | 137 } |
138 | 138 |
139 ////////////////////////////////////////////////////////////////////////////// | 139 ////////////////////////////////////////////////////////////////////////////// |
140 | 140 |
141 GrFragmentProcessor* | 141 GrFragmentProcessor* |
142 GrYUVtoRGBEffect::Create(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vT
exture, | 142 GrYUVtoRGBEffect::Create(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vT
exture, |
143 SkYUVColorSpace colorSpace) { | 143 SkYUVColorSpace colorSpace) { |
144 return YUVtoRGBEffect::Create(yTexture, uTexture, vTexture, colorSpace); | 144 return YUVtoRGBEffect::Create(yTexture, uTexture, vTexture, colorSpace); |
145 } | 145 } |
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