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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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/GrPorterDuffXferProcessor.h" | 8 #include "effects/GrPorterDuffXferProcessor.h" |
9 | 9 |
10 #include "GrBlend.h" | 10 #include "GrBlend.h" |
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552 const char* srcCoverage, | 552 const char* srcCoverage, |
553 const char* dstColor, | 553 const char* dstColor, |
554 const char* outColor, | 554 const char* outColor, |
555 const char* outColorSecondary, | 555 const char* outColorSecondary, |
556 const GrXferProcessor& proc) override { | 556 const GrXferProcessor& proc) override { |
557 const ShaderPDXferProcessor& xp = proc.cast<ShaderPDXferProcessor>(); | 557 const ShaderPDXferProcessor& xp = proc.cast<ShaderPDXferProcessor>(); |
558 | 558 |
559 GrGLSLBlend::AppendMode(fragBuilder, srcColor, dstColor, outColor, xp.ge
tXfermode()); | 559 GrGLSLBlend::AppendMode(fragBuilder, srcColor, dstColor, outColor, xp.ge
tXfermode()); |
560 | 560 |
561 // Apply coverage. | 561 // Apply coverage. |
562 if (xp.dstReadUsesMixedSamples()) { | 562 INHERITED::DefaultCoverageModulation(fragBuilder, srcCoverage, dstColor,
outColor, |
563 if (srcCoverage) { | 563 outColorSecondary, xp); |
564 fragBuilder->codeAppendf("%s *= %s;", outColor, srcCoverage); | |
565 fragBuilder->codeAppendf("%s = %s;", outColorSecondary, srcCover
age); | |
566 } else { | |
567 fragBuilder->codeAppendf("%s = vec4(1.0);", outColorSecondary); | |
568 } | |
569 } else if (srcCoverage) { | |
570 fragBuilder->codeAppendf("%s = %s * %s + (vec4(1.0) - %s) * %s;", | |
571 outColor, srcCoverage, outColor, srcCoverag
e, dstColor); | |
572 } | |
573 } | 564 } |
574 | 565 |
575 void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) over
ride {} | 566 void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) over
ride {} |
576 | 567 |
577 typedef GrGLSLXferProcessor INHERITED; | 568 typedef GrGLSLXferProcessor INHERITED; |
578 }; | 569 }; |
579 | 570 |
580 /////////////////////////////////////////////////////////////////////////////// | 571 /////////////////////////////////////////////////////////////////////////////// |
581 | 572 |
582 void ShaderPDXferProcessor::onGetGLSLProcessorKey(const GrGLSLCaps&, | 573 void ShaderPDXferProcessor::onGetGLSLProcessorKey(const GrGLSLCaps&, |
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917 } | 908 } |
918 return get_lcd_blend_formula(optimizations.fCoveragePOI, | 909 return get_lcd_blend_formula(optimizations.fCoveragePOI, |
919 SkXfermode::kSrcOver_Mode).hasSecondaryOutp
ut(); | 910 SkXfermode::kSrcOver_Mode).hasSecondaryOutp
ut(); |
920 } | 911 } |
921 // We fallback on the shader XP when the blend formula would use dual source
blending but we | 912 // We fallback on the shader XP when the blend formula would use dual source
blending but we |
922 // don't have support for it. | 913 // don't have support for it. |
923 return get_blend_formula(optimizations.fColorPOI, optimizations.fCoveragePOI
, | 914 return get_blend_formula(optimizations.fColorPOI, optimizations.fCoveragePOI
, |
924 hasMixedSamples, SkXfermode::kSrcOver_Mode).hasSeco
ndaryOutput(); | 915 hasMixedSamples, SkXfermode::kSrcOver_Mode).hasSeco
ndaryOutput(); |
925 } | 916 } |
926 | 917 |
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