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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/GrGLFragmentProcessor.h" | 13 #include "gl/GrGLFragmentProcessor.h" |
14 #include "gl/builders/GrGLProgramBuilder.h" | 14 #include "gl/builders/GrGLProgramBuilder.h" |
| 15 #include "glsl/GrGLSLProgramDataManager.h" |
15 | 16 |
16 namespace { | 17 namespace { |
17 | 18 |
18 class YUVtoRGBEffect : public GrFragmentProcessor { | 19 class YUVtoRGBEffect : public GrFragmentProcessor { |
19 public: | 20 public: |
20 static GrFragmentProcessor* Create(GrTexture* yTexture, GrTexture* uTexture, | 21 static GrFragmentProcessor* Create(GrTexture* yTexture, GrTexture* uTexture, |
21 GrTexture* vTexture, const SkISize sizes[
3], | 22 GrTexture* vTexture, const SkISize sizes[
3], |
22 SkYUVColorSpace colorSpace) { | 23 SkYUVColorSpace colorSpace) { |
23 SkScalar w[3], h[3]; | 24 SkScalar w[3], h[3]; |
24 w[0] = SkIntToScalar(sizes[0].fWidth) / SkIntToScalar(yTexture->width()
); | 25 w[0] = SkIntToScalar(sizes[0].fWidth) / SkIntToScalar(yTexture->width()
); |
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45 } | 46 } |
46 | 47 |
47 const char* name() const override { return "YUV to RGB"; } | 48 const char* name() const override { return "YUV to RGB"; } |
48 | 49 |
49 SkYUVColorSpace getColorSpace() const { | 50 SkYUVColorSpace getColorSpace() const { |
50 return fColorSpace; | 51 return fColorSpace; |
51 } | 52 } |
52 | 53 |
53 class GLProcessor : public GrGLFragmentProcessor { | 54 class GLProcessor : public GrGLFragmentProcessor { |
54 public: | 55 public: |
55 static const GrGLfloat kJPEGConversionMatrix[16]; | 56 static const float kJPEGConversionMatrix[16]; |
56 static const GrGLfloat kRec601ConversionMatrix[16]; | 57 static const float kRec601ConversionMatrix[16]; |
57 static const GrGLfloat kRec709ConversionMatrix[16]; | 58 static const float kRec709ConversionMatrix[16]; |
58 | 59 |
59 // this class always generates the same code. | 60 // this class always generates the same code. |
60 static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKey
Builder*) {} | 61 static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKey
Builder*) {} |
61 | 62 |
62 GLProcessor(const GrProcessor&) {} | 63 GLProcessor(const GrProcessor&) {} |
63 | 64 |
64 virtual void emitCode(EmitArgs& args) override { | 65 virtual void emitCode(EmitArgs& args) override { |
65 GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBui
lder(); | 66 GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBui
lder(); |
66 | 67 |
67 const char* yuvMatrix = nullptr; | 68 const char* yuvMatrix = nullptr; |
68 fMatrixUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment
_Visibility, | 69 fMatrixUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment
_Visibility, |
69 kMat44f_GrSLType, kDefault_GrSLPrec
ision, | 70 kMat44f_GrSLType, kDefault_GrSLPrec
ision, |
70 "YUVMatrix", &yuvMatrix); | 71 "YUVMatrix", &yuvMatrix); |
71 fsBuilder->codeAppendf("\t%s = vec4(\n\t\t", args.fOutputColor); | 72 fsBuilder->codeAppendf("\t%s = vec4(\n\t\t", args.fOutputColor); |
72 fsBuilder->appendTextureLookup(args.fSamplers[0], args.fCoords[0].c_
str(), | 73 fsBuilder->appendTextureLookup(args.fSamplers[0], args.fCoords[0].c_
str(), |
73 args.fCoords[0].getType()); | 74 args.fCoords[0].getType()); |
74 fsBuilder->codeAppend(".r,\n\t\t"); | 75 fsBuilder->codeAppend(".r,\n\t\t"); |
75 fsBuilder->appendTextureLookup(args.fSamplers[1], args.fCoords[1].c_
str(), | 76 fsBuilder->appendTextureLookup(args.fSamplers[1], args.fCoords[1].c_
str(), |
76 args.fCoords[1].getType()); | 77 args.fCoords[1].getType()); |
77 fsBuilder->codeAppend(".r,\n\t\t"); | 78 fsBuilder->codeAppend(".r,\n\t\t"); |
78 fsBuilder->appendTextureLookup(args.fSamplers[2], args.fCoords[2].c_
str(), | 79 fsBuilder->appendTextureLookup(args.fSamplers[2], args.fCoords[2].c_
str(), |
79 args.fCoords[2].getType()); | 80 args.fCoords[2].getType()); |
80 fsBuilder->codeAppendf(".r,\n\t\t1.0) * %s;\n", yuvMatrix); | 81 fsBuilder->codeAppendf(".r,\n\t\t1.0) * %s;\n", yuvMatrix); |
81 } | 82 } |
82 | 83 |
83 protected: | 84 protected: |
84 virtual void onSetData(const GrGLProgramDataManager& pdman, | 85 virtual void onSetData(const GrGLSLProgramDataManager& pdman, |
85 const GrProcessor& processor) override { | 86 const GrProcessor& processor) override { |
86 const YUVtoRGBEffect& yuvEffect = processor.cast<YUVtoRGBEffect>(); | 87 const YUVtoRGBEffect& yuvEffect = processor.cast<YUVtoRGBEffect>(); |
87 switch (yuvEffect.getColorSpace()) { | 88 switch (yuvEffect.getColorSpace()) { |
88 case kJPEG_SkYUVColorSpace: | 89 case kJPEG_SkYUVColorSpace: |
89 pdman.setMatrix4f(fMatrixUni, kJPEGConversionMatrix); | 90 pdman.setMatrix4f(fMatrixUni, kJPEGConversionMatrix); |
90 break; | 91 break; |
91 case kRec601_SkYUVColorSpace: | 92 case kRec601_SkYUVColorSpace: |
92 pdman.setMatrix4f(fMatrixUni, kRec601ConversionMatrix); | 93 pdman.setMatrix4f(fMatrixUni, kRec601ConversionMatrix); |
93 break; | 94 break; |
94 case kRec709_SkYUVColorSpace: | 95 case kRec709_SkYUVColorSpace: |
95 pdman.setMatrix4f(fMatrixUni, kRec709ConversionMatrix); | 96 pdman.setMatrix4f(fMatrixUni, kRec709ConversionMatrix); |
96 break; | 97 break; |
97 } | 98 } |
98 } | 99 } |
99 | 100 |
100 private: | 101 private: |
101 GrGLProgramDataManager::UniformHandle fMatrixUni; | 102 GrGLSLProgramDataManager::UniformHandle fMatrixUni; |
102 | 103 |
103 typedef GrGLFragmentProcessor INHERITED; | 104 typedef GrGLFragmentProcessor INHERITED; |
104 }; | 105 }; |
105 | 106 |
106 private: | 107 private: |
107 YUVtoRGBEffect(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vTexture
, | 108 YUVtoRGBEffect(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vTexture
, |
108 const SkMatrix yuvMatrix[3], GrTextureParams::FilterMode uvFi
lterMode, | 109 const SkMatrix yuvMatrix[3], GrTextureParams::FilterMode uvFi
lterMode, |
109 SkYUVColorSpace colorSpace) | 110 SkYUVColorSpace colorSpace) |
110 : fYTransform(kLocal_GrCoordSet, yuvMatrix[0], yTexture, GrTextureParams::kN
one_FilterMode) | 111 : fYTransform(kLocal_GrCoordSet, yuvMatrix[0], yTexture, GrTextureParams::kN
one_FilterMode) |
111 , fYAccess(yTexture) | 112 , fYAccess(yTexture) |
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145 GrTextureAccess fYAccess; | 146 GrTextureAccess fYAccess; |
146 GrCoordTransform fUTransform; | 147 GrCoordTransform fUTransform; |
147 GrTextureAccess fUAccess; | 148 GrTextureAccess fUAccess; |
148 GrCoordTransform fVTransform; | 149 GrCoordTransform fVTransform; |
149 GrTextureAccess fVAccess; | 150 GrTextureAccess fVAccess; |
150 SkYUVColorSpace fColorSpace; | 151 SkYUVColorSpace fColorSpace; |
151 | 152 |
152 typedef GrFragmentProcessor INHERITED; | 153 typedef GrFragmentProcessor INHERITED; |
153 }; | 154 }; |
154 | 155 |
155 const GrGLfloat YUVtoRGBEffect::GLProcessor::kJPEGConversionMatrix[16] = { | 156 const float YUVtoRGBEffect::GLProcessor::kJPEGConversionMatrix[16] = { |
156 1.0f, 0.0f, 1.402f, -0.701f, | 157 1.0f, 0.0f, 1.402f, -0.701f, |
157 1.0f, -0.34414f, -0.71414f, 0.529f, | 158 1.0f, -0.34414f, -0.71414f, 0.529f, |
158 1.0f, 1.772f, 0.0f, -0.886f, | 159 1.0f, 1.772f, 0.0f, -0.886f, |
159 0.0f, 0.0f, 0.0f, 1.0}; | 160 0.0f, 0.0f, 0.0f, 1.0}; |
160 const GrGLfloat YUVtoRGBEffect::GLProcessor::kRec601ConversionMatrix[16] = { | 161 const float YUVtoRGBEffect::GLProcessor::kRec601ConversionMatrix[16] = { |
161 1.164f, 0.0f, 1.596f, -0.87075f, | 162 1.164f, 0.0f, 1.596f, -0.87075f, |
162 1.164f, -0.391f, -0.813f, 0.52925f, | 163 1.164f, -0.391f, -0.813f, 0.52925f, |
163 1.164f, 2.018f, 0.0f, -1.08175f, | 164 1.164f, 2.018f, 0.0f, -1.08175f, |
164 0.0f, 0.0f, 0.0f, 1.0}; | 165 0.0f, 0.0f, 0.0f, 1.0}; |
165 const GrGLfloat YUVtoRGBEffect::GLProcessor::kRec709ConversionMatrix[16] = { | 166 const float YUVtoRGBEffect::GLProcessor::kRec709ConversionMatrix[16] = { |
166 1.164f, 0.0f, 1.793f, -0.96925f, | 167 1.164f, 0.0f, 1.793f, -0.96925f, |
167 1.164f, -0.213f, -0.533f, 0.30025f, | 168 1.164f, -0.213f, -0.533f, 0.30025f, |
168 1.164f, 2.112f, 0.0f, -1.12875f, | 169 1.164f, 2.112f, 0.0f, -1.12875f, |
169 0.0f, 0.0f, 0.0f, 1.0f}; | 170 0.0f, 0.0f, 0.0f, 1.0f}; |
170 } | 171 } |
171 | 172 |
172 ////////////////////////////////////////////////////////////////////////////// | 173 ////////////////////////////////////////////////////////////////////////////// |
173 | 174 |
174 GrFragmentProcessor* | 175 GrFragmentProcessor* |
175 GrYUVtoRGBEffect::Create(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vT
exture, | 176 GrYUVtoRGBEffect::Create(GrTexture* yTexture, GrTexture* uTexture, GrTexture* vT
exture, |
176 const SkISize sizes[3], SkYUVColorSpace colorSpace) { | 177 const SkISize sizes[3], SkYUVColorSpace colorSpace) { |
177 SkASSERT(yTexture && uTexture && vTexture && sizes); | 178 SkASSERT(yTexture && uTexture && vTexture && sizes); |
178 return YUVtoRGBEffect::Create(yTexture, uTexture, vTexture, sizes, colorSpac
e); | 179 return YUVtoRGBEffect::Create(yTexture, uTexture, vTexture, sizes, colorSpac
e); |
179 } | 180 } |
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