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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 #include "SkXfermode.h" | 10 #include "SkXfermode.h" |
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811 return GrTBackendEffectFactory<XferEffect>::getInstance(); | 811 return GrTBackendEffectFactory<XferEffect>::getInstance(); |
812 } | 812 } |
813 | 813 |
814 static const char* Name() { return "XferEffect"; } | 814 static const char* Name() { return "XferEffect"; } |
815 | 815 |
816 SkXfermode::Mode mode() const { return fMode; } | 816 SkXfermode::Mode mode() const { return fMode; } |
817 const GrTextureAccess& backgroundAccess() const { return fBackgroundAccess;
} | 817 const GrTextureAccess& backgroundAccess() const { return fBackgroundAccess;
} |
818 | 818 |
819 class GLEffect : public GrGLEffect { | 819 class GLEffect : public GrGLEffect { |
820 public: | 820 public: |
821 GLEffect(const GrBackendEffectFactory& factory, const GrEffect&) | 821 GLEffect(const GrBackendEffectFactory& factory, const GrDrawEffect&) |
822 : GrGLEffect(factory) { | 822 : GrGLEffect(factory) { |
823 } | 823 } |
824 virtual void emitCode(GrGLProgramBuilder* builder, | 824 virtual void emitCode(GrGLProgramBuilder* builder, |
825 const GrEffect& effect, | 825 const GrDrawEffect& drawEffect, |
826 const GrEffectKey& key, | 826 const GrEffectKey& key, |
827 const char* outputColor, | 827 const char* outputColor, |
828 const char* inputColor, | 828 const char* inputColor, |
829 const TransformedCoordsArray& coords, | 829 const TransformedCoordsArray& coords, |
830 const TextureSamplerArray& samplers) SK_OVERRIDE { | 830 const TextureSamplerArray& samplers) SK_OVERRIDE { |
831 SkXfermode::Mode mode = effect.cast<XferEffect>().mode(); | 831 SkXfermode::Mode mode = drawEffect.castEffect<XferEffect>().mode(); |
832 const GrTexture* backgroundTex = | 832 const GrTexture* backgroundTex = drawEffect.castEffect<XferEffect>()
.backgroundAccess().getTexture(); |
833 effect.cast<XferEffect>().backgroundAccess().getTexture(); | |
834 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBui
lder(); | 833 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBui
lder(); |
835 const char* dstColor; | 834 const char* dstColor; |
836 if (backgroundTex) { | 835 if (backgroundTex) { |
837 dstColor = "bgColor"; | 836 dstColor = "bgColor"; |
838 fsBuilder->codeAppendf("\t\tvec4 %s = ", dstColor); | 837 fsBuilder->codeAppendf("\t\tvec4 %s = ", dstColor); |
839 fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), c
oords[0].type()); | 838 fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), c
oords[0].type()); |
840 fsBuilder->codeAppendf(";\n"); | 839 fsBuilder->codeAppendf(";\n"); |
841 } else { | 840 } else { |
842 dstColor = fsBuilder->dstColor(); | 841 dstColor = fsBuilder->dstColor(); |
843 } | 842 } |
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964 fsBuilder->codeAppendf("\t\t%s.rgb += (1.0 - %s.a) * %s.rgb
+ (1.0 - %s.a) * %s.rgb;\n", | 963 fsBuilder->codeAppendf("\t\t%s.rgb += (1.0 - %s.a) * %s.rgb
+ (1.0 - %s.a) * %s.rgb;\n", |
965 outputColor, inputColor, dstColor, ds
tColor, inputColor); | 964 outputColor, inputColor, dstColor, ds
tColor, inputColor); |
966 break; | 965 break; |
967 } | 966 } |
968 default: | 967 default: |
969 SkFAIL("Unknown XferEffect mode."); | 968 SkFAIL("Unknown XferEffect mode."); |
970 break; | 969 break; |
971 } | 970 } |
972 } | 971 } |
973 | 972 |
974 static inline void GenKey(const GrEffect& effect, const GrGLCaps&, | 973 static inline void GenKey(const GrDrawEffect& drawEffect, const GrGLCaps
&, |
975 GrEffectKeyBuilder* b) { | 974 GrEffectKeyBuilder* b) { |
976 // The background may come from the dst or from a texture. | 975 // The background may come from the dst or from a texture. |
977 uint32_t key = effect.numTextures(); | 976 uint32_t key = drawEffect.effect()->numTextures(); |
978 SkASSERT(key <= 1); | 977 SkASSERT(key <= 1); |
979 key |= effect.cast<XferEffect>().mode() << 1; | 978 key |= drawEffect.castEffect<XferEffect>().mode() << 1; |
980 b->add32(key); | 979 b->add32(key); |
981 } | 980 } |
982 | 981 |
983 private: | 982 private: |
984 static void HardLight(GrGLFragmentShaderBuilder* fsBuilder, | 983 static void HardLight(GrGLFragmentShaderBuilder* fsBuilder, |
985 const char* final, | 984 const char* final, |
986 const char* src, | 985 const char* src, |
987 const char* dst) { | 986 const char* dst) { |
988 static const char kComponents[] = {'r', 'g', 'b'}; | 987 static const char kComponents[] = {'r', 'g', 'b'}; |
989 for (size_t i = 0; i < SK_ARRAY_COUNT(kComponents); ++i) { | 988 for (size_t i = 0; i < SK_ARRAY_COUNT(kComponents); ++i) { |
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1208 if (background) { | 1207 if (background) { |
1209 fBackgroundTransform.reset(kLocal_GrCoordSet, background); | 1208 fBackgroundTransform.reset(kLocal_GrCoordSet, background); |
1210 this->addCoordTransform(&fBackgroundTransform); | 1209 this->addCoordTransform(&fBackgroundTransform); |
1211 fBackgroundAccess.reset(background); | 1210 fBackgroundAccess.reset(background); |
1212 this->addTextureAccess(&fBackgroundAccess); | 1211 this->addTextureAccess(&fBackgroundAccess); |
1213 } else { | 1212 } else { |
1214 this->setWillReadDstColor(); | 1213 this->setWillReadDstColor(); |
1215 } | 1214 } |
1216 } | 1215 } |
1217 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE { | 1216 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE { |
1218 const XferEffect& s = other.cast<XferEffect>(); | 1217 const XferEffect& s = CastEffect<XferEffect>(other); |
1219 return fMode == s.fMode && | 1218 return fMode == s.fMode && |
1220 fBackgroundAccess.getTexture() == s.fBackgroundAccess.getTexture(
); | 1219 fBackgroundAccess.getTexture() == s.fBackgroundAccess.getTexture(
); |
1221 } | 1220 } |
1222 | 1221 |
1223 SkXfermode::Mode fMode; | 1222 SkXfermode::Mode fMode; |
1224 GrCoordTransform fBackgroundTransform; | 1223 GrCoordTransform fBackgroundTransform; |
1225 GrTextureAccess fBackgroundAccess; | 1224 GrTextureAccess fBackgroundAccess; |
1226 | 1225 |
1227 typedef GrEffect INHERITED; | 1226 typedef GrEffect INHERITED; |
1228 }; | 1227 }; |
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1957 } else { | 1956 } else { |
1958 proc16 = rec.fProc16_General; | 1957 proc16 = rec.fProc16_General; |
1959 } | 1958 } |
1960 } | 1959 } |
1961 return proc16; | 1960 return proc16; |
1962 } | 1961 } |
1963 | 1962 |
1964 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkXfermode) | 1963 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkXfermode) |
1965 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkProcCoeffXfermode) | 1964 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkProcCoeffXfermode) |
1966 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END | 1965 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |
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