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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 "GrYUVEffect.h" | 8 #include "GrYUVEffect.h" |
9 | 9 |
10 #include "GrCoordTransform.h" | 10 #include "GrCoordTransform.h" |
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95 | 95 |
96 class GLSLProcessor : public GrGLSLFragmentProcessor { | 96 class GLSLProcessor : public GrGLSLFragmentProcessor { |
97 public: | 97 public: |
98 // this class always generates the same code. | 98 // this class always generates the same code. |
99 static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKey
Builder*) {} | 99 static void GenKey(const GrProcessor&, const GrGLSLCaps&, GrProcessorKey
Builder*) {} |
100 | 100 |
101 void emitCode(EmitArgs& args) override { | 101 void emitCode(EmitArgs& args) override { |
102 GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder; | 102 GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder; |
103 | 103 |
104 const char* colorSpaceMatrix = nullptr; | 104 const char* colorSpaceMatrix = nullptr; |
105 fMatrixUni = args.fUniformHandler->addUniform( | 105 fMatrixUni = args.fUniformHandler->addUniform(kFragment_GrShaderFlag
, |
106 GrGLSLUniformHandler::k
Fragment_Visibility, | 106 kMat44f_GrSLType, kDef
ault_GrSLPrecision, |
107 kMat44f_GrSLType, kDefa
ult_GrSLPrecision, | 107 "ColorSpaceMatrix", &c
olorSpaceMatrix); |
108 "ColorSpaceMatrix", &co
lorSpaceMatrix); | |
109 fragBuilder->codeAppendf("%s = vec4(", args.fOutputColor); | 108 fragBuilder->codeAppendf("%s = vec4(", args.fOutputColor); |
110 fragBuilder->appendTextureLookup(args.fSamplers[0], args.fCoords[0].
c_str(), | 109 fragBuilder->appendTextureLookup(args.fSamplers[0], args.fCoords[0].
c_str(), |
111 args.fCoords[0].getType()); | 110 args.fCoords[0].getType()); |
112 fragBuilder->codeAppend(".r,"); | 111 fragBuilder->codeAppend(".r,"); |
113 fragBuilder->appendTextureLookup(args.fSamplers[1], args.fCoords[1].
c_str(), | 112 fragBuilder->appendTextureLookup(args.fSamplers[1], args.fCoords[1].
c_str(), |
114 args.fCoords[1].getType()); | 113 args.fCoords[1].getType()); |
115 fragBuilder->codeAppend(".r,"); | 114 fragBuilder->codeAppend(".r,"); |
116 fragBuilder->appendTextureLookup(args.fSamplers[2], args.fCoords[2].
c_str(), | 115 fragBuilder->appendTextureLookup(args.fSamplers[2], args.fCoords[2].
c_str(), |
117 args.fCoords[2].getType()); | 116 args.fCoords[2].getType()); |
118 fragBuilder->codeAppendf(".r, 1.0) * %s;", colorSpaceMatrix); | 117 fragBuilder->codeAppendf(".r, 1.0) * %s;", colorSpaceMatrix); |
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229 GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder; | 228 GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder; |
230 OutputChannels oc = args.fFp.cast<RGBToYUVEffect>().outputChannels()
; | 229 OutputChannels oc = args.fFp.cast<RGBToYUVEffect>().outputChannels()
; |
231 | 230 |
232 SkString outputColor("rgbColor"); | 231 SkString outputColor("rgbColor"); |
233 this->emitChild(0, args.fInputColor, &outputColor, args); | 232 this->emitChild(0, args.fInputColor, &outputColor, args); |
234 | 233 |
235 const char* uniName; | 234 const char* uniName; |
236 switch (oc) { | 235 switch (oc) { |
237 case kYUV_OutputChannels: | 236 case kYUV_OutputChannels: |
238 fRGBToYUVUni = args.fUniformHandler->addUniformArray( | 237 fRGBToYUVUni = args.fUniformHandler->addUniformArray( |
239 GrGLSLUniformHandler::kFragment_Visibility, | 238 kFragment_GrShaderFlag, |
240 kVec4f_GrSLType, kDefault_GrSLPrecision, | 239 kVec4f_GrSLType, kDefault_GrSLPrecision, |
241 "RGBToYUV", 3, &uniName); | 240 "RGBToYUV", 3, &uniName); |
242 fragBuilder->codeAppendf("%s = vec4(dot(rgbColor.rgb, %s[0].
rgb) + %s[0].a," | 241 fragBuilder->codeAppendf("%s = vec4(dot(rgbColor.rgb, %s[0].
rgb) + %s[0].a," |
243 "dot(rgbColor.rgb, %s[1].
rgb) + %s[1].a," | 242 "dot(rgbColor.rgb, %s[1].
rgb) + %s[1].a," |
244 "dot(rgbColor.rgb, %s[2].
rgb) + %s[2].a," | 243 "dot(rgbColor.rgb, %s[2].
rgb) + %s[2].a," |
245 "rgbColor.a);", | 244 "rgbColor.a);", |
246 args.fOutputColor, uniName, uniName
, uniName, uniName, | 245 args.fOutputColor, uniName, uniName
, uniName, uniName, |
247 uniName, uniName); | 246 uniName, uniName); |
248 break; | 247 break; |
249 case kUV_OutputChannels: | 248 case kUV_OutputChannels: |
250 fRGBToYUVUni = args.fUniformHandler->addUniformArray( | 249 fRGBToYUVUni = args.fUniformHandler->addUniformArray( |
251 GrGLSLUniformHandler::kFragment_Visibility, | 250 kFragment_GrShaderFlag, |
252 kVec4f_GrSLType, kDefault_GrSLPrecision, | 251 kVec4f_GrSLType, kDefault_GrSLPrecision, |
253 "RGBToUV", 2, &uniName); | 252 "RGBToUV", 2, &uniName); |
254 fragBuilder->codeAppendf("%s = vec4(dot(rgbColor.rgb, %s[0].
rgb) + %s[0].a," | 253 fragBuilder->codeAppendf("%s = vec4(dot(rgbColor.rgb, %s[0].
rgb) + %s[0].a," |
255 "dot(rgbColor.rgb, %s[1].
rgb) + %s[1].a," | 254 "dot(rgbColor.rgb, %s[1].
rgb) + %s[1].a," |
256 "0.0," | 255 "0.0," |
257 "rgbColor.a);", | 256 "rgbColor.a);", |
258 args.fOutputColor, uniName, uniName
, uniName, uniName); | 257 args.fOutputColor, uniName, uniName
, uniName, uniName); |
259 break; | 258 break; |
260 case kY_OutputChannels: | 259 case kY_OutputChannels: |
261 case kU_OutputChannels: | 260 case kU_OutputChannels: |
262 case kV_OutputChannels: | 261 case kV_OutputChannels: |
263 fRGBToYUVUni = args.fUniformHandler->addUniform( | 262 fRGBToYUVUni = args.fUniformHandler->addUniform( |
264 GrGLSLUniformHandler::kFragment_Visibility, | 263 kFragment_GrShaderFlag, |
265 kVec4f_GrSLType, kDefault_GrSLPrecision, | 264 kVec4f_GrSLType, kDefault_GrSLPrecision, |
266 "RGBToYUorV", &uniName); | 265 "RGBToYUorV", &uniName); |
267 fragBuilder->codeAppendf("%s = vec4(dot(rgbColor.rgb, %s.rgb
) + %s.a);\n", | 266 fragBuilder->codeAppendf("%s = vec4(dot(rgbColor.rgb, %s.rgb
) + %s.a);\n", |
268 args.fOutputColor, uniName, uniName
); | 267 args.fOutputColor, uniName, uniName
); |
269 break; | 268 break; |
270 } | 269 } |
271 } | 270 } |
272 | 271 |
273 private: | 272 private: |
274 void onSetData(const GrGLSLProgramDataManager& pdman, | 273 void onSetData(const GrGLSLProgramDataManager& pdman, |
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380 GrYUVEffect::CreateRGBToU(const GrFragmentProcessor* rgbFP, SkYUVColorSpace colo
rSpace) { | 379 GrYUVEffect::CreateRGBToU(const GrFragmentProcessor* rgbFP, SkYUVColorSpace colo
rSpace) { |
381 SkASSERT(rgbFP); | 380 SkASSERT(rgbFP); |
382 return new RGBToYUVEffect(rgbFP, colorSpace, RGBToYUVEffect::kU_OutputChanne
ls); | 381 return new RGBToYUVEffect(rgbFP, colorSpace, RGBToYUVEffect::kU_OutputChanne
ls); |
383 } | 382 } |
384 | 383 |
385 const GrFragmentProcessor* | 384 const GrFragmentProcessor* |
386 GrYUVEffect::CreateRGBToV(const GrFragmentProcessor* rgbFP, SkYUVColorSpace colo
rSpace) { | 385 GrYUVEffect::CreateRGBToV(const GrFragmentProcessor* rgbFP, SkYUVColorSpace colo
rSpace) { |
387 SkASSERT(rgbFP); | 386 SkASSERT(rgbFP); |
388 return new RGBToYUVEffect(rgbFP, colorSpace, RGBToYUVEffect::kV_OutputChanne
ls); | 387 return new RGBToYUVEffect(rgbFP, colorSpace, RGBToYUVEffect::kV_OutputChanne
ls); |
389 } | 388 } |
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