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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" |
11 #include "GrSimpleTextureEffect.h" | 11 #include "GrSimpleTextureEffect.h" |
12 #include "gl/GrGLEffect.h" | 12 #include "gl/GrGLEffect.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 GrGLEffect { | 16 class GrGLConfigConversionEffect : public GrGLEffect { |
17 public: | 17 public: |
18 GrGLConfigConversionEffect(const GrBackendEffectFactory& factory, | 18 GrGLConfigConversionEffect(const GrBackendEffectFactory& factory, |
19 const GrEffect& effect) | 19 const GrDrawEffect& drawEffect) |
20 : INHERITED (factory) { | 20 : INHERITED (factory) { |
21 const GrConfigConversionEffect& configConversionEffect = effect.cast<GrC
onfigConversionEffect>(); | 21 const GrConfigConversionEffect& effect = drawEffect.castEffect<GrConfigC
onversionEffect>(); |
22 fSwapRedAndBlue = configConversionEffect.swapsRedAndBlue(); | 22 fSwapRedAndBlue = effect.swapsRedAndBlue(); |
23 fPMConversion = configConversionEffect.pmConversion(); | 23 fPMConversion = effect.pmConversion(); |
24 } | 24 } |
25 | 25 |
26 virtual void emitCode(GrGLProgramBuilder* builder, | 26 virtual void emitCode(GrGLProgramBuilder* builder, |
27 const GrEffect&, | 27 const GrDrawEffect&, |
28 const GrEffectKey& key, | 28 const GrEffectKey& key, |
29 const char* outputColor, | 29 const char* outputColor, |
30 const char* inputColor, | 30 const char* inputColor, |
31 const TransformedCoordsArray& coords, | 31 const TransformedCoordsArray& coords, |
32 const TextureSamplerArray& samplers) SK_OVERRIDE { | 32 const TextureSamplerArray& samplers) SK_OVERRIDE { |
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 |
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77 SkFAIL("Unknown conversion op."); | 77 SkFAIL("Unknown conversion op."); |
78 break; | 78 break; |
79 } | 79 } |
80 fsBuilder->codeAppendf("%s = %s;", outputColor, tmpVar.c_str()); | 80 fsBuilder->codeAppendf("%s = %s;", outputColor, tmpVar.c_str()); |
81 } | 81 } |
82 SkString modulate; | 82 SkString modulate; |
83 GrGLSLMulVarBy4f(&modulate, 2, outputColor, inputColor); | 83 GrGLSLMulVarBy4f(&modulate, 2, outputColor, inputColor); |
84 fsBuilder->codeAppend(modulate.c_str()); | 84 fsBuilder->codeAppend(modulate.c_str()); |
85 } | 85 } |
86 | 86 |
87 static inline void GenKey(const GrEffect& effect, const GrGLCaps&, | 87 static inline void GenKey(const GrDrawEffect& drawEffect, const GrGLCaps&, |
88 GrEffectKeyBuilder* b) { | 88 GrEffectKeyBuilder* b) { |
89 const GrConfigConversionEffect& conv = effect.cast<GrConfigConversionEff
ect>(); | 89 const GrConfigConversionEffect& conv = drawEffect.castEffect<GrConfigCon
versionEffect>(); |
90 uint32_t key = (conv.swapsRedAndBlue() ? 0 : 1) | (conv.pmConversion() <
< 1); | 90 uint32_t key = (conv.swapsRedAndBlue() ? 0 : 1) | (conv.pmConversion() <
< 1); |
91 b->add32(key); | 91 b->add32(key); |
92 } | 92 } |
93 | 93 |
94 private: | 94 private: |
95 bool fSwapRedAndBlue; | 95 bool fSwapRedAndBlue; |
96 GrConfigConversionEffect::PMConversion fPMConversion; | 96 GrConfigConversionEffect::PMConversion fPMConversion; |
97 | 97 |
98 typedef GrGLEffect INHERITED; | 98 typedef GrGLEffect INHERITED; |
99 | 99 |
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112 kBGRA_8888_GrPixelConfig == texture->config()); | 112 kBGRA_8888_GrPixelConfig == texture->config()); |
113 // Why did we pollute our texture cache instead of using a GrSingleTextureEf
fect? | 113 // Why did we pollute our texture cache instead of using a GrSingleTextureEf
fect? |
114 SkASSERT(swapRedAndBlue || kNone_PMConversion != pmConversion); | 114 SkASSERT(swapRedAndBlue || kNone_PMConversion != pmConversion); |
115 } | 115 } |
116 | 116 |
117 const GrBackendEffectFactory& GrConfigConversionEffect::getFactory() const { | 117 const GrBackendEffectFactory& GrConfigConversionEffect::getFactory() const { |
118 return GrTBackendEffectFactory<GrConfigConversionEffect>::getInstance(); | 118 return GrTBackendEffectFactory<GrConfigConversionEffect>::getInstance(); |
119 } | 119 } |
120 | 120 |
121 bool GrConfigConversionEffect::onIsEqual(const GrEffect& s) const { | 121 bool GrConfigConversionEffect::onIsEqual(const GrEffect& s) const { |
122 const GrConfigConversionEffect& other = s.cast<GrConfigConversionEffect>(); | 122 const GrConfigConversionEffect& other = CastEffect<GrConfigConversionEffect>
(s); |
123 return this->texture(0) == s.texture(0) && | 123 return this->texture(0) == s.texture(0) && |
124 other.fSwapRedAndBlue == fSwapRedAndBlue && | 124 other.fSwapRedAndBlue == fSwapRedAndBlue && |
125 other.fPMConversion == fPMConversion; | 125 other.fPMConversion == fPMConversion; |
126 } | 126 } |
127 | 127 |
128 void GrConfigConversionEffect::getConstantColorComponents(GrColor* color, | 128 void GrConfigConversionEffect::getConstantColorComponents(GrColor* color, |
129 uint32_t* validFlags)
const { | 129 uint32_t* validFlags)
const { |
130 this->updateConstantColorComponentsForModulation(color, validFlags); | 130 this->updateConstantColorComponentsForModulation(color, validFlags); |
131 } | 131 } |
132 | 132 |
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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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