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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 "GrConfigConversionEffect.h" | 8 #include "GrConfigConversionEffect.h" |
9 #include "GrContext.h" | 9 #include "GrContext.h" |
10 #include "GrTBackendEffectFactory.h" | 10 #include "GrTBackendEffectFactory.h" |
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26 | 26 |
27 virtual void emitCode(GrGLShaderBuilder* builder, | 27 virtual void emitCode(GrGLShaderBuilder* builder, |
28 const GrDrawEffect&, | 28 const GrDrawEffect&, |
29 EffectKey key, | 29 EffectKey key, |
30 const char* outputColor, | 30 const char* outputColor, |
31 const char* inputColor, | 31 const char* inputColor, |
32 const TextureSamplerArray& samplers) SK_OVERRIDE { | 32 const TextureSamplerArray& samplers) SK_OVERRIDE { |
33 SkString coords; | 33 SkString coords; |
34 GrSLType coordsType = fEffectMatrix.emitCode(builder, key, &coords); | 34 GrSLType coordsType = fEffectMatrix.emitCode(builder, key, &coords); |
35 builder->fsCodeAppendf("\t\t%s = ", outputColor); | 35 builder->fsCodeAppendf("\t\t%s = ", outputColor); |
36 builder->appendTextureLookup(GrGLShaderBuilder::kFragment_ShaderType, | 36 builder->fsAppendTextureLookup(samplers[0], coords.c_str(), coordsType); |
37 samplers[0], | |
38 coords.c_str(), | |
39 coordsType); | |
40 builder->fsCodeAppend(";\n"); | 37 builder->fsCodeAppend(";\n"); |
41 if (GrConfigConversionEffect::kNone_PMConversion == fPMConversion) { | 38 if (GrConfigConversionEffect::kNone_PMConversion == fPMConversion) { |
42 SkASSERT(fSwapRedAndBlue); | 39 SkASSERT(fSwapRedAndBlue); |
43 builder->fsCodeAppendf("\t%s = %s.bgra;\n", outputColor, outputColor
); | 40 builder->fsCodeAppendf("\t%s = %s.bgra;\n", outputColor, outputColor
); |
44 } else { | 41 } else { |
45 const char* swiz = fSwapRedAndBlue ? "bgr" : "rgb"; | 42 const char* swiz = fSwapRedAndBlue ? "bgr" : "rgb"; |
46 switch (fPMConversion) { | 43 switch (fPMConversion) { |
47 case GrConfigConversionEffect::kMulByAlpha_RoundUp_PMConversion: | 44 case GrConfigConversionEffect::kMulByAlpha_RoundUp_PMConversion: |
48 builder->fsCodeAppendf( | 45 builder->fsCodeAppendf( |
49 "\t\t%s = vec4(ceil(%s.%s * %s.a * 255.0) / 255.0, %s.a)
;\n", | 46 "\t\t%s = vec4(ceil(%s.%s * %s.a * 255.0) / 255.0, %s.a)
;\n", |
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287 // The PM conversions assume colors are 0..255 | 284 // The PM conversions assume colors are 0..255 |
288 return NULL; | 285 return NULL; |
289 } | 286 } |
290 AutoEffectUnref effect(SkNEW_ARGS(GrConfigConversionEffect, (texture, | 287 AutoEffectUnref effect(SkNEW_ARGS(GrConfigConversionEffect, (texture, |
291 swapRedAndB
lue, | 288 swapRedAndB
lue, |
292 pmConversio
n, | 289 pmConversio
n, |
293 matrix))); | 290 matrix))); |
294 return CreateEffectRef(effect); | 291 return CreateEffectRef(effect); |
295 } | 292 } |
296 } | 293 } |
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