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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, SkISize sizes[3], |
22 return SkNEW_ARGS(YUVtoRGBEffect, (yTexture, uTexture, vTexture, colorSp
ace)); | 22 SkYUVColorSpace colorSpace) { |
| 23 SkScalar w[3], h[3]; |
| 24 w[0] = SkIntToScalar(sizes[0].fWidth) / SkIntToScalar(yTexture->width()
); |
| 25 h[0] = SkIntToScalar(sizes[0].fHeight) / SkIntToScalar(yTexture->height(
)); |
| 26 w[1] = SkIntToScalar(sizes[1].fWidth) / SkIntToScalar(uTexture->width()
); |
| 27 h[1] = SkIntToScalar(sizes[1].fHeight) / SkIntToScalar(uTexture->height(
)); |
| 28 w[2] = SkIntToScalar(sizes[2].fWidth) / SkIntToScalar(vTexture->width()
); |
| 29 h[2] = SkIntToScalar(sizes[2].fHeight) / SkIntToScalar(vTexture->height(
)); |
| 30 SkMatrix yuvMatrix[3]; |
| 31 yuvMatrix[0] = GrCoordTransform::MakeDivByTextureWHMatrix(yTexture); |
| 32 yuvMatrix[1] = yuvMatrix[0]; |
| 33 yuvMatrix[1].preScale(w[1] / w[0], h[1] / h[0]); |
| 34 yuvMatrix[2] = yuvMatrix[0]; |
| 35 yuvMatrix[2].preScale(w[2] / w[0], h[2] / h[0]); |
| 36 return SkNEW_ARGS(YUVtoRGBEffect, (yTexture, uTexture, vTexture, yuvMatr
ix, colorSpace)); |
23 } | 37 } |
24 | 38 |
25 const char* name() const SK_OVERRIDE { return "YUV to RGB"; } | 39 const char* name() const SK_OVERRIDE { return "YUV to RGB"; } |
26 | 40 |
27 SkYUVColorSpace getColorSpace() const { | 41 SkYUVColorSpace getColorSpace() const { |
28 return fColorSpace; | 42 return fColorSpace; |
29 } | 43 } |
30 | 44 |
31 class GLProcessor : public GrGLFragmentProcessor { | 45 class GLProcessor : public GrGLFragmentProcessor { |
32 public: | 46 public: |
(...skipping 13 matching lines...) Expand all Loading... |
46 const TextureSamplerArray& samplers) SK_OVERRIDE { | 60 const TextureSamplerArray& samplers) SK_OVERRIDE { |
47 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder
(); | 61 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder
(); |
48 | 62 |
49 const char* yuvMatrix = NULL; | 63 const char* yuvMatrix = NULL; |
50 fMatrixUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visib
ility, | 64 fMatrixUni = builder->addUniform(GrGLProgramBuilder::kFragment_Visib
ility, |
51 kMat44f_GrSLType, kDefault_GrSLPrec
ision, | 65 kMat44f_GrSLType, kDefault_GrSLPrec
ision, |
52 "YUVMatrix", &yuvMatrix); | 66 "YUVMatrix", &yuvMatrix); |
53 fsBuilder->codeAppendf("\t%s = vec4(\n\t\t", outputColor); | 67 fsBuilder->codeAppendf("\t%s = vec4(\n\t\t", outputColor); |
54 fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), coord
s[0].getType()); | 68 fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), coord
s[0].getType()); |
55 fsBuilder->codeAppend(".r,\n\t\t"); | 69 fsBuilder->codeAppend(".r,\n\t\t"); |
56 fsBuilder->appendTextureLookup(samplers[1], coords[0].c_str(), coord
s[0].getType()); | 70 fsBuilder->appendTextureLookup(samplers[1], coords[1].c_str(), coord
s[1].getType()); |
57 fsBuilder->codeAppend(".r,\n\t\t"); | 71 fsBuilder->codeAppend(".r,\n\t\t"); |
58 fsBuilder->appendTextureLookup(samplers[2], coords[0].c_str(), coord
s[0].getType()); | 72 fsBuilder->appendTextureLookup(samplers[2], coords[2].c_str(), coord
s[2].getType()); |
59 fsBuilder->codeAppendf(".r,\n\t\t1.0) * %s;\n", yuvMatrix); | 73 fsBuilder->codeAppendf(".r,\n\t\t1.0) * %s;\n", yuvMatrix); |
60 } | 74 } |
61 | 75 |
62 virtual void setData(const GrGLProgramDataManager& pdman, | 76 virtual void setData(const GrGLProgramDataManager& pdman, |
63 const GrProcessor& processor) SK_OVERRIDE { | 77 const GrProcessor& processor) SK_OVERRIDE { |
64 const YUVtoRGBEffect& yuvEffect = processor.cast<YUVtoRGBEffect>(); | 78 const YUVtoRGBEffect& yuvEffect = processor.cast<YUVtoRGBEffect>(); |
65 switch (yuvEffect.getColorSpace()) { | 79 switch (yuvEffect.getColorSpace()) { |
66 case kJPEG_SkYUVColorSpace: | 80 case kJPEG_SkYUVColorSpace: |
67 pdman.setMatrix4f(fMatrixUni, kJPEGConversionMatrix); | 81 pdman.setMatrix4f(fMatrixUni, kJPEGConversionMatrix); |
68 break; | 82 break; |
(...skipping 13 matching lines...) Expand all Loading... |
82 GrProcessorKeyBuilder* b) const SK_OVERRIDE { | 96 GrProcessorKeyBuilder* b) const SK_OVERRIDE { |
83 GLProcessor::GenKey(*this, caps, b); | 97 GLProcessor::GenKey(*this, caps, b); |
84 } | 98 } |
85 | 99 |
86 GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE { | 100 GrGLFragmentProcessor* createGLInstance() const SK_OVERRIDE { |
87 return SkNEW_ARGS(GLProcessor, (*this)); | 101 return SkNEW_ARGS(GLProcessor, (*this)); |
88 } | 102 } |
89 | 103 |
90 private: | 104 private: |
91 YUVtoRGBEffect(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vTexture
, | 105 YUVtoRGBEffect(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vTexture
, |
92 SkYUVColorSpace colorSpace) | 106 SkMatrix yuvMatrix[3], SkYUVColorSpace colorSpace) |
93 : fCoordTransform(kLocal_GrCoordSet, | 107 : fYTransform(kLocal_GrCoordSet, yuvMatrix[0], yTexture, GrTextureParams::kN
one_FilterMode) |
94 GrCoordTransform::MakeDivByTextureWHMatrix(yTexture), | |
95 yTexture, GrTextureParams::kNone_FilterMode) | |
96 , fYAccess(yTexture) | 108 , fYAccess(yTexture) |
| 109 , fUTransform(kLocal_GrCoordSet, yuvMatrix[1], uTexture, GrTextureParams::kN
one_FilterMode) |
97 , fUAccess(uTexture) | 110 , fUAccess(uTexture) |
| 111 , fVTransform(kLocal_GrCoordSet, yuvMatrix[2], vTexture, GrTextureParams::kN
one_FilterMode) |
98 , fVAccess(vTexture) | 112 , fVAccess(vTexture) |
99 , fColorSpace(colorSpace) { | 113 , fColorSpace(colorSpace) { |
100 this->initClassID<YUVtoRGBEffect>(); | 114 this->initClassID<YUVtoRGBEffect>(); |
101 this->addCoordTransform(&fCoordTransform); | 115 this->addCoordTransform(&fYTransform); |
102 this->addTextureAccess(&fYAccess); | 116 this->addTextureAccess(&fYAccess); |
| 117 this->addCoordTransform(&fUTransform); |
103 this->addTextureAccess(&fUAccess); | 118 this->addTextureAccess(&fUAccess); |
| 119 this->addCoordTransform(&fVTransform); |
104 this->addTextureAccess(&fVAccess); | 120 this->addTextureAccess(&fVAccess); |
105 } | 121 } |
106 | 122 |
107 bool onIsEqual(const GrFragmentProcessor& sBase) const SK_OVERRIDE { | 123 bool onIsEqual(const GrFragmentProcessor& sBase) const SK_OVERRIDE { |
108 const YUVtoRGBEffect& s = sBase.cast<YUVtoRGBEffect>(); | 124 const YUVtoRGBEffect& s = sBase.cast<YUVtoRGBEffect>(); |
109 return fColorSpace == s.getColorSpace(); | 125 return fColorSpace == s.getColorSpace(); |
110 } | 126 } |
111 | 127 |
112 void onComputeInvariantOutput(GrInvariantOutput* inout) const SK_OVERRIDE { | 128 void onComputeInvariantOutput(GrInvariantOutput* inout) const SK_OVERRIDE { |
113 // YUV is opaque | 129 // YUV is opaque |
114 inout->setToOther(kA_GrColorComponentFlag, 0xFF << GrColor_SHIFT_A, | 130 inout->setToOther(kA_GrColorComponentFlag, 0xFF << GrColor_SHIFT_A, |
115 GrInvariantOutput::kWillNot_ReadInput); | 131 GrInvariantOutput::kWillNot_ReadInput); |
116 } | 132 } |
117 | 133 |
118 GrCoordTransform fCoordTransform; | 134 GrCoordTransform fYTransform; |
119 GrTextureAccess fYAccess; | 135 GrTextureAccess fYAccess; |
| 136 GrCoordTransform fUTransform; |
120 GrTextureAccess fUAccess; | 137 GrTextureAccess fUAccess; |
| 138 GrCoordTransform fVTransform; |
121 GrTextureAccess fVAccess; | 139 GrTextureAccess fVAccess; |
122 SkYUVColorSpace fColorSpace; | 140 SkYUVColorSpace fColorSpace; |
123 | 141 |
124 typedef GrFragmentProcessor INHERITED; | 142 typedef GrFragmentProcessor INHERITED; |
125 }; | 143 }; |
126 | 144 |
127 const GrGLfloat YUVtoRGBEffect::GLProcessor::kJPEGConversionMatrix[16] = { | 145 const GrGLfloat YUVtoRGBEffect::GLProcessor::kJPEGConversionMatrix[16] = { |
128 1.0f, 0.0f, 1.402f, -0.701f, | 146 1.0f, 0.0f, 1.402f, -0.701f, |
129 1.0f, -0.34414f, -0.71414f, 0.529f, | 147 1.0f, -0.34414f, -0.71414f, 0.529f, |
130 1.0f, 1.772f, 0.0f, -0.886f, | 148 1.0f, 1.772f, 0.0f, -0.886f, |
131 0.0f, 0.0f, 0.0f, 1.0}; | 149 0.0f, 0.0f, 0.0f, 1.0}; |
132 const GrGLfloat YUVtoRGBEffect::GLProcessor::kRec601ConversionMatrix[16] = { | 150 const GrGLfloat YUVtoRGBEffect::GLProcessor::kRec601ConversionMatrix[16] = { |
133 1.164f, 0.0f, 1.596f, -0.87075f, | 151 1.164f, 0.0f, 1.596f, -0.87075f, |
134 1.164f, -0.391f, -0.813f, 0.52925f, | 152 1.164f, -0.391f, -0.813f, 0.52925f, |
135 1.164f, 2.018f, 0.0f, -1.08175f, | 153 1.164f, 2.018f, 0.0f, -1.08175f, |
136 0.0f, 0.0f, 0.0f, 1.0}; | 154 0.0f, 0.0f, 0.0f, 1.0}; |
137 } | 155 } |
138 | 156 |
139 ////////////////////////////////////////////////////////////////////////////// | 157 ////////////////////////////////////////////////////////////////////////////// |
140 | 158 |
141 GrFragmentProcessor* | 159 GrFragmentProcessor* |
142 GrYUVtoRGBEffect::Create(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vT
exture, | 160 GrYUVtoRGBEffect::Create(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vT
exture, |
143 SkYUVColorSpace colorSpace) { | 161 SkISize sizes[3], SkYUVColorSpace colorSpace) { |
144 return YUVtoRGBEffect::Create(yTexture, uTexture, vTexture, colorSpace); | 162 SkASSERT(yTexture && uTexture && vTexture && sizes); |
| 163 return YUVtoRGBEffect::Create(yTexture, uTexture, vTexture, sizes, colorSpac
e); |
145 } | 164 } |
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