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| 1 /* | 1 /* |
| 2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 "effects/GrCustomXfermode.h" | 8 #include "effects/GrCustomXfermode.h" |
| 9 | 9 |
| 10 #include "GrCoordTransform.h" | 10 #include "GrCoordTransform.h" |
| 11 #include "GrContext.h" | 11 #include "GrContext.h" |
| 12 #include "GrFragmentProcessor.h" | 12 #include "GrFragmentProcessor.h" |
| 13 #include "GrInvariantOutput.h" | 13 #include "GrInvariantOutput.h" |
| 14 #include "GrProcessor.h" | 14 #include "GrProcessor.h" |
| 15 #include "GrTexture.h" | 15 #include "GrTexture.h" |
| 16 #include "GrTextureAccess.h" | 16 #include "GrTextureAccess.h" |
| 17 #include "SkXfermode.h" | 17 #include "SkXfermode.h" |
| 18 #include "gl/GrGLCaps.h" | 18 #include "gl/GrGLCaps.h" |
| 19 #include "gl/GrGLGpu.h" | 19 #include "gl/GrGLGpu.h" |
| 20 #include "gl/GrGLSLBlend.h" | 20 #include "gl/GrGLSLBlend.h" |
| 21 #include "gl/GrGLFragmentProcessor.h" | 21 #include "gl/GrGLFragmentProcessor.h" |
| 22 #include "gl/GrGLProgramDataManager.h" | 22 #include "gl/GrGLProgramDataManager.h" |
| 23 #include "gl/builders/GrGLProgramBuilder.h" | |
| 24 #include "glsl/GrGLSLCaps.h" | 23 #include "glsl/GrGLSLCaps.h" |
| 24 #include "glsl/GrGLSLFragmentShaderBuilder.h" |
| 25 #include "glsl/GrGLSLProgramBuilder.h" |
| 25 #include "glsl/GrGLSLProgramDataManager.h" | 26 #include "glsl/GrGLSLProgramDataManager.h" |
| 26 | 27 |
| 27 bool GrCustomXfermode::IsSupportedMode(SkXfermode::Mode mode) { | 28 bool GrCustomXfermode::IsSupportedMode(SkXfermode::Mode mode) { |
| 28 return mode > SkXfermode::kLastCoeffMode && mode <= SkXfermode::kLastMode; | 29 return mode > SkXfermode::kLastCoeffMode && mode <= SkXfermode::kLastMode; |
| 29 } | 30 } |
| 30 | 31 |
| 31 /////////////////////////////////////////////////////////////////////////////// | 32 /////////////////////////////////////////////////////////////////////////////// |
| 32 // Static helpers | 33 // Static helpers |
| 33 /////////////////////////////////////////////////////////////////////////////// | 34 /////////////////////////////////////////////////////////////////////////////// |
| 34 | 35 |
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| 140 key |= xp.mode() << 3; | 141 key |= xp.mode() << 3; |
| 141 } | 142 } |
| 142 b->add32(key); | 143 b->add32(key); |
| 143 } | 144 } |
| 144 | 145 |
| 145 private: | 146 private: |
| 146 void emitOutputsForBlendState(const EmitArgs& args) override { | 147 void emitOutputsForBlendState(const EmitArgs& args) override { |
| 147 const CustomXP& xp = args.fXP.cast<CustomXP>(); | 148 const CustomXP& xp = args.fXP.cast<CustomXP>(); |
| 148 SkASSERT(xp.hasHWBlendEquation()); | 149 SkASSERT(xp.hasHWBlendEquation()); |
| 149 | 150 |
| 150 GrGLXPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); | 151 GrGLSLXPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(
); |
| 151 fsBuilder->enableAdvancedBlendEquationIfNeeded(xp.hwBlendEquation()); | 152 fsBuilder->enableAdvancedBlendEquationIfNeeded(xp.hwBlendEquation()); |
| 152 | 153 |
| 153 // Apply coverage by multiplying it into the src color before blending.
Mixed samples will | 154 // Apply coverage by multiplying it into the src color before blending.
Mixed samples will |
| 154 // "just work" automatically. (See onGetOptimizations()) | 155 // "just work" automatically. (See onGetOptimizations()) |
| 155 if (xp.readsCoverage()) { | 156 if (xp.readsCoverage()) { |
| 156 fsBuilder->codeAppendf("%s = %s * %s;", | 157 fsBuilder->codeAppendf("%s = %s * %s;", |
| 157 args.fOutputPrimary, args.fInputCoverage, arg
s.fInputColor); | 158 args.fOutputPrimary, args.fInputCoverage, arg
s.fInputColor); |
| 158 } else { | 159 } else { |
| 159 fsBuilder->codeAppendf("%s = %s;", args.fOutputPrimary, args.fInputC
olor); | 160 fsBuilder->codeAppendf("%s = %s;", args.fOutputPrimary, args.fInputC
olor); |
| 160 } | 161 } |
| 161 } | 162 } |
| 162 | 163 |
| 163 void emitBlendCodeForDstRead(GrGLSLXPBuilder* pb, const char* srcColor, cons
t char* dstColor, | 164 void emitBlendCodeForDstRead(GrGLSLXPBuilder* pb, const char* srcColor, cons
t char* dstColor, |
| 164 const char* outColor, const GrXferProcessor& pr
oc) override { | 165 const char* outColor, const GrXferProcessor& pr
oc) override { |
| 165 const CustomXP& xp = proc.cast<CustomXP>(); | 166 const CustomXP& xp = proc.cast<CustomXP>(); |
| 166 SkASSERT(!xp.hasHWBlendEquation()); | 167 SkASSERT(!xp.hasHWBlendEquation()); |
| 167 | 168 |
| 168 GrGLXPFragmentBuilder* fsBuilder = pb->getFragmentShaderBuilder(); | 169 GrGLSLXPFragmentBuilder* fsBuilder = pb->getFragmentShaderBuilder(); |
| 169 GrGLSLBlend::AppendMode(fsBuilder, srcColor, dstColor, outColor, xp.mode
()); | 170 GrGLSLBlend::AppendMode(fsBuilder, srcColor, dstColor, outColor, xp.mode
()); |
| 170 } | 171 } |
| 171 | 172 |
| 172 void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) over
ride {} | 173 void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) over
ride {} |
| 173 | 174 |
| 174 typedef GrGLXferProcessor INHERITED; | 175 typedef GrGLXferProcessor INHERITED; |
| 175 }; | 176 }; |
| 176 | 177 |
| 177 /////////////////////////////////////////////////////////////////////////////// | 178 /////////////////////////////////////////////////////////////////////////////// |
| 178 | 179 |
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| 393 | 394 |
| 394 /////////////////////////////////////////////////////////////////////////////// | 395 /////////////////////////////////////////////////////////////////////////////// |
| 395 | 396 |
| 396 GrXPFactory* GrCustomXfermode::CreateXPFactory(SkXfermode::Mode mode) { | 397 GrXPFactory* GrCustomXfermode::CreateXPFactory(SkXfermode::Mode mode) { |
| 397 if (!GrCustomXfermode::IsSupportedMode(mode)) { | 398 if (!GrCustomXfermode::IsSupportedMode(mode)) { |
| 398 return nullptr; | 399 return nullptr; |
| 399 } else { | 400 } else { |
| 400 return new CustomXPFactory(mode); | 401 return new CustomXPFactory(mode); |
| 401 } | 402 } |
| 402 } | 403 } |
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