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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 GrDrawEffect&) | 821 GLEffect(const GrBackendEffectFactory& factory, const GrEffect&) |
822 : GrGLEffect(factory) { | 822 : GrGLEffect(factory) { |
823 } | 823 } |
824 virtual void emitCode(GrGLProgramBuilder* builder, | 824 virtual void emitCode(GrGLProgramBuilder* builder, |
825 const GrDrawEffect& drawEffect, | 825 const GrEffect& effect, |
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 = drawEffect.castEffect<XferEffect>().mode(); | 831 SkXfermode::Mode mode = GrEffect::CastEffect<XferEffect>(effect).mod
e(); |
832 const GrTexture* backgroundTex = drawEffect.castEffect<XferEffect>()
.backgroundAccess().getTexture(); | 832 const GrTexture* backgroundTex = |
| 833 GrEffect::CastEffect<XferEffect>(effect).backgroundAccess().
getTexture(); |
833 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBui
lder(); | 834 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBui
lder(); |
834 const char* dstColor; | 835 const char* dstColor; |
835 if (backgroundTex) { | 836 if (backgroundTex) { |
836 dstColor = "bgColor"; | 837 dstColor = "bgColor"; |
837 fsBuilder->codeAppendf("\t\tvec4 %s = ", dstColor); | 838 fsBuilder->codeAppendf("\t\tvec4 %s = ", dstColor); |
838 fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), c
oords[0].type()); | 839 fsBuilder->appendTextureLookup(samplers[0], coords[0].c_str(), c
oords[0].type()); |
839 fsBuilder->codeAppendf(";\n"); | 840 fsBuilder->codeAppendf(";\n"); |
840 } else { | 841 } else { |
841 dstColor = fsBuilder->dstColor(); | 842 dstColor = fsBuilder->dstColor(); |
842 } | 843 } |
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963 fsBuilder->codeAppendf("\t\t%s.rgb += (1.0 - %s.a) * %s.rgb
+ (1.0 - %s.a) * %s.rgb;\n", | 964 fsBuilder->codeAppendf("\t\t%s.rgb += (1.0 - %s.a) * %s.rgb
+ (1.0 - %s.a) * %s.rgb;\n", |
964 outputColor, inputColor, dstColor, ds
tColor, inputColor); | 965 outputColor, inputColor, dstColor, ds
tColor, inputColor); |
965 break; | 966 break; |
966 } | 967 } |
967 default: | 968 default: |
968 SkFAIL("Unknown XferEffect mode."); | 969 SkFAIL("Unknown XferEffect mode."); |
969 break; | 970 break; |
970 } | 971 } |
971 } | 972 } |
972 | 973 |
973 static inline void GenKey(const GrDrawEffect& drawEffect, const GrGLCaps
&, | 974 static inline void GenKey(const GrEffect& effect, const GrGLCaps&, |
974 GrEffectKeyBuilder* b) { | 975 GrEffectKeyBuilder* b) { |
975 // The background may come from the dst or from a texture. | 976 // The background may come from the dst or from a texture. |
976 uint32_t key = drawEffect.effect()->numTextures(); | 977 uint32_t key = effect.numTextures(); |
977 SkASSERT(key <= 1); | 978 SkASSERT(key <= 1); |
978 key |= drawEffect.castEffect<XferEffect>().mode() << 1; | 979 key |= GrEffect::CastEffect<XferEffect>(effect).mode() << 1; |
979 b->add32(key); | 980 b->add32(key); |
980 } | 981 } |
981 | 982 |
982 private: | 983 private: |
983 static void HardLight(GrGLFragmentShaderBuilder* fsBuilder, | 984 static void HardLight(GrGLFragmentShaderBuilder* fsBuilder, |
984 const char* final, | 985 const char* final, |
985 const char* src, | 986 const char* src, |
986 const char* dst) { | 987 const char* dst) { |
987 static const char kComponents[] = {'r', 'g', 'b'}; | 988 static const char kComponents[] = {'r', 'g', 'b'}; |
988 for (size_t i = 0; i < SK_ARRAY_COUNT(kComponents); ++i) { | 989 for (size_t i = 0; i < SK_ARRAY_COUNT(kComponents); ++i) { |
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1207 if (background) { | 1208 if (background) { |
1208 fBackgroundTransform.reset(kLocal_GrCoordSet, background); | 1209 fBackgroundTransform.reset(kLocal_GrCoordSet, background); |
1209 this->addCoordTransform(&fBackgroundTransform); | 1210 this->addCoordTransform(&fBackgroundTransform); |
1210 fBackgroundAccess.reset(background); | 1211 fBackgroundAccess.reset(background); |
1211 this->addTextureAccess(&fBackgroundAccess); | 1212 this->addTextureAccess(&fBackgroundAccess); |
1212 } else { | 1213 } else { |
1213 this->setWillReadDstColor(); | 1214 this->setWillReadDstColor(); |
1214 } | 1215 } |
1215 } | 1216 } |
1216 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE { | 1217 virtual bool onIsEqual(const GrEffect& other) const SK_OVERRIDE { |
1217 const XferEffect& s = CastEffect<XferEffect>(other); | 1218 const XferEffect& s = GrEffect::CastEffect<XferEffect>(other); |
1218 return fMode == s.fMode && | 1219 return fMode == s.fMode && |
1219 fBackgroundAccess.getTexture() == s.fBackgroundAccess.getTexture(
); | 1220 fBackgroundAccess.getTexture() == s.fBackgroundAccess.getTexture(
); |
1220 } | 1221 } |
1221 | 1222 |
1222 SkXfermode::Mode fMode; | 1223 SkXfermode::Mode fMode; |
1223 GrCoordTransform fBackgroundTransform; | 1224 GrCoordTransform fBackgroundTransform; |
1224 GrTextureAccess fBackgroundAccess; | 1225 GrTextureAccess fBackgroundAccess; |
1225 | 1226 |
1226 typedef GrEffect INHERITED; | 1227 typedef GrEffect INHERITED; |
1227 }; | 1228 }; |
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1956 } else { | 1957 } else { |
1957 proc16 = rec.fProc16_General; | 1958 proc16 = rec.fProc16_General; |
1958 } | 1959 } |
1959 } | 1960 } |
1960 return proc16; | 1961 return proc16; |
1961 } | 1962 } |
1962 | 1963 |
1963 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkXfermode) | 1964 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkXfermode) |
1964 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkProcCoeffXfermode) | 1965 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkProcCoeffXfermode) |
1965 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END | 1966 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |
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