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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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| 33 // Using highp for GLES here in order to avoid some precision issues on
specific GPUs. | 33 // Using highp for GLES here in order to avoid some precision issues on
specific GPUs. |
| 34 GrGLShaderVar tmpVar("tmpColor", kVec4f_GrSLType, 0, GrGLShaderVar::kHig
h_Precision); | 34 GrGLShaderVar tmpVar("tmpColor", kVec4f_GrSLType, 0, GrGLShaderVar::kHig
h_Precision); |
| 35 SkString tmpDecl; | 35 SkString tmpDecl; |
| 36 tmpVar.appendDecl(builder->ctxInfo(), &tmpDecl); | 36 tmpVar.appendDecl(builder->ctxInfo(), &tmpDecl); |
| 37 | 37 |
| 38 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder
(); | 38 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder
(); |
| 39 | 39 |
| 40 fsBuilder->codeAppendf("%s;", tmpDecl.c_str()); | 40 fsBuilder->codeAppendf("%s;", tmpDecl.c_str()); |
| 41 | 41 |
| 42 fsBuilder->codeAppendf("%s = ", tmpVar.c_str()); | 42 fsBuilder->codeAppendf("%s = ", tmpVar.c_str()); |
| 43 fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), coords[0]
.type()); | 43 fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), coords[0]
.getType()); |
| 44 fsBuilder->codeAppend(";"); | 44 fsBuilder->codeAppend(";"); |
| 45 | 45 |
| 46 if (GrConfigConversionEffect::kNone_PMConversion == fPMConversion) { | 46 if (GrConfigConversionEffect::kNone_PMConversion == fPMConversion) { |
| 47 SkASSERT(fSwapRedAndBlue); | 47 SkASSERT(fSwapRedAndBlue); |
| 48 fsBuilder->codeAppendf("%s = %s.bgra;", outputColor, tmpVar.c_str())
; | 48 fsBuilder->codeAppendf("%s = %s.bgra;", outputColor, tmpVar.c_str())
; |
| 49 } else { | 49 } else { |
| 50 const char* swiz = fSwapRedAndBlue ? "bgr" : "rgb"; | 50 const char* swiz = fSwapRedAndBlue ? "bgr" : "rgb"; |
| 51 switch (fPMConversion) { | 51 switch (fPMConversion) { |
| 52 case GrConfigConversionEffect::kMulByAlpha_RoundUp_PMConversion: | 52 case GrConfigConversionEffect::kMulByAlpha_RoundUp_PMConversion: |
| 53 fsBuilder->codeAppendf( | 53 fsBuilder->codeAppendf( |
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| 278 kNone_PMConversion != pmConversion) { | 278 kNone_PMConversion != pmConversion) { |
| 279 // The PM conversions assume colors are 0..255 | 279 // The PM conversions assume colors are 0..255 |
| 280 return NULL; | 280 return NULL; |
| 281 } | 281 } |
| 282 return SkNEW_ARGS(GrConfigConversionEffect, (texture, | 282 return SkNEW_ARGS(GrConfigConversionEffect, (texture, |
| 283 swapRedAndBlue, | 283 swapRedAndBlue, |
| 284 pmConversion, | 284 pmConversion, |
| 285 matrix)); | 285 matrix)); |
| 286 } | 286 } |
| 287 } | 287 } |
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