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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 "GrTBackendProcessorFactory.h" | 10 #include "GrTBackendProcessorFactory.h" |
| 11 #include "GrSimpleTextureEffect.h" | 11 #include "GrSimpleTextureEffect.h" |
| 12 #include "gl/GrGLProcessor.h" | 12 #include "gl/GrGLProcessor.h" |
| 13 #include "gl/builders/GrGLProgramBuilder.h" | 13 #include "gl/builders/GrGLProgramBuilder.h" |
| 14 #include "SkMatrix.h" | 14 #include "SkMatrix.h" |
| 15 | 15 |
| 16 class GrGLConfigConversionEffect : public GrGLFragmentProcessor { | 16 class GrGLConfigConversionEffect : public GrGLFragmentProcessor { |
| 17 public: | 17 public: |
| 18 GrGLConfigConversionEffect(const GrBackendProcessorFactory& factory, | 18 GrGLConfigConversionEffect(const GrBackendProcessorFactory& factory, |
| 19 const GrProcessor& processor) | 19 const GrProcessor& processor) |
| 20 : INHERITED (factory) { | 20 : INHERITED (factory) { |
| 21 const GrConfigConversionEffect& configConversionEffect = | 21 const GrConfigConversionEffect& configConversionEffect = |
| 22 processor.cast<GrConfigConversionEffect>(); | 22 processor.cast<GrConfigConversionEffect>(); |
| 23 fSwapRedAndBlue = configConversionEffect.swapsRedAndBlue(); | 23 fSwapRedAndBlue = configConversionEffect.swapsRedAndBlue(); |
| 24 fPMConversion = configConversionEffect.pmConversion(); | 24 fPMConversion = configConversionEffect.pmConversion(); |
| 25 } | 25 } |
| 26 | 26 |
| 27 virtual void emitCode(GrGLProgramBuilder* builder, | 27 virtual void emitCode(GrGLFPBuilder* builder, |
| 28 const GrFragmentProcessor&, | 28 const GrFragmentProcessor&, |
| 29 const GrProcessorKey& key, | 29 const GrProcessorKey& key, |
| 30 const char* outputColor, | 30 const char* outputColor, |
| 31 const char* inputColor, | 31 const char* inputColor, |
| 32 const TransformedCoordsArray& coords, | 32 const TransformedCoordsArray& coords, |
| 33 const TextureSamplerArray& samplers) SK_OVERRIDE { | 33 const TextureSamplerArray& samplers) SK_OVERRIDE { |
| 34 // Using highp for GLES here in order to avoid some precision issues on
specific GPUs. | 34 // Using highp for GLES here in order to avoid some precision issues on
specific GPUs. |
| 35 GrGLShaderVar tmpVar("tmpColor", kVec4f_GrSLType, 0, GrGLShaderVar::kHig
h_Precision); | 35 GrGLShaderVar tmpVar("tmpColor", kVec4f_GrSLType, 0, GrGLShaderVar::kHig
h_Precision); |
| 36 SkString tmpDecl; | 36 SkString tmpDecl; |
| 37 tmpVar.appendDecl(builder->ctxInfo(), &tmpDecl); | 37 tmpVar.appendDecl(builder->ctxInfo(), &tmpDecl); |
| 38 | 38 |
| 39 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBuilder
(); | 39 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder(); |
| 40 | 40 |
| 41 fsBuilder->codeAppendf("%s;", tmpDecl.c_str()); | 41 fsBuilder->codeAppendf("%s;", tmpDecl.c_str()); |
| 42 | 42 |
| 43 fsBuilder->codeAppendf("%s = ", tmpVar.c_str()); | 43 fsBuilder->codeAppendf("%s = ", tmpVar.c_str()); |
| 44 fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), coords[0]
.getType()); | 44 fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), coords[0]
.getType()); |
| 45 fsBuilder->codeAppend(";"); | 45 fsBuilder->codeAppend(";"); |
| 46 | 46 |
| 47 if (GrConfigConversionEffect::kNone_PMConversion == fPMConversion) { | 47 if (GrConfigConversionEffect::kNone_PMConversion == fPMConversion) { |
| 48 SkASSERT(fSwapRedAndBlue); | 48 SkASSERT(fSwapRedAndBlue); |
| 49 fsBuilder->codeAppendf("%s = %s.bgra;", outputColor, tmpVar.c_str())
; | 49 fsBuilder->codeAppendf("%s = %s.bgra;", outputColor, tmpVar.c_str())
; |
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| 276 kNone_PMConversion != pmConversion) { | 276 kNone_PMConversion != pmConversion) { |
| 277 // The PM conversions assume colors are 0..255 | 277 // The PM conversions assume colors are 0..255 |
| 278 return NULL; | 278 return NULL; |
| 279 } | 279 } |
| 280 return SkNEW_ARGS(GrConfigConversionEffect, (texture, | 280 return SkNEW_ARGS(GrConfigConversionEffect, (texture, |
| 281 swapRedAndBlue, | 281 swapRedAndBlue, |
| 282 pmConversion, | 282 pmConversion, |
| 283 matrix)); | 283 matrix)); |
| 284 } | 284 } |
| 285 } | 285 } |
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