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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" |
11 #include "GrCaps.h" | 11 #include "GrCaps.h" |
12 #include "GrPipeline.h" | 12 #include "GrPipeline.h" |
13 #include "GrProcessor.h" | 13 #include "GrProcessor.h" |
14 #include "GrProcOptInfo.h" | 14 #include "GrProcOptInfo.h" |
15 #include "GrTypes.h" | 15 #include "GrTypes.h" |
16 #include "GrXferProcessor.h" | 16 #include "GrXferProcessor.h" |
17 #include "glsl/GrGLSLBlend.h" | 17 #include "glsl/GrGLSLBlend.h" |
18 #include "glsl/GrGLSLFragmentShaderBuilder.h" | 18 #include "glsl/GrGLSLFragmentShaderBuilder.h" |
19 #include "glsl/GrGLSLProgramBuilder.h" | |
20 #include "glsl/GrGLSLProgramDataManager.h" | 19 #include "glsl/GrGLSLProgramDataManager.h" |
| 20 #include "glsl/GrGLSLUniformHandler.h" |
21 #include "glsl/GrGLSLXferProcessor.h" | 21 #include "glsl/GrGLSLXferProcessor.h" |
22 | 22 |
23 /** | 23 /** |
24 * Wraps the shader outputs and HW blend state that comprise a Porter Duff blend
mode with coverage. | 24 * Wraps the shader outputs and HW blend state that comprise a Porter Duff blend
mode with coverage. |
25 */ | 25 */ |
26 struct BlendFormula { | 26 struct BlendFormula { |
27 public: | 27 public: |
28 /** | 28 /** |
29 * Values the shader can write to primary and secondary outputs. These must
all be modulated by | 29 * Values the shader can write to primary and secondary outputs. These must
all be modulated by |
30 * coverage to support mixed samples. The XP will ignore the multiplies when
not using coverage. | 30 * coverage to support mixed samples. The XP will ignore the multiplies when
not using coverage. |
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538 /////////////////////////////////////////////////////////////////////////////// | 538 /////////////////////////////////////////////////////////////////////////////// |
539 | 539 |
540 class GLShaderPDXferProcessor : public GrGLSLXferProcessor { | 540 class GLShaderPDXferProcessor : public GrGLSLXferProcessor { |
541 public: | 541 public: |
542 static void GenKey(const GrProcessor& processor, GrProcessorKeyBuilder* b) { | 542 static void GenKey(const GrProcessor& processor, GrProcessorKeyBuilder* b) { |
543 const ShaderPDXferProcessor& xp = processor.cast<ShaderPDXferProcessor>(
); | 543 const ShaderPDXferProcessor& xp = processor.cast<ShaderPDXferProcessor>(
); |
544 b->add32(xp.getXfermode()); | 544 b->add32(xp.getXfermode()); |
545 } | 545 } |
546 | 546 |
547 private: | 547 private: |
548 void emitBlendCodeForDstRead(GrGLSLXPBuilder* pb, | 548 void emitBlendCodeForDstRead(GrGLSLXPFragmentBuilder* fragBuilder, |
549 GrGLSLXPFragmentBuilder* fragBuilder, | 549 GrGLSLUniformHandler* uniformHandler, |
550 const char* srcColor, | 550 const char* srcColor, |
551 const char* srcCoverage, | 551 const char* srcCoverage, |
552 const char* dstColor, | 552 const char* dstColor, |
553 const char* outColor, | 553 const char* outColor, |
554 const char* outColorSecondary, | 554 const char* outColorSecondary, |
555 const GrXferProcessor& proc) override { | 555 const GrXferProcessor& proc) override { |
556 const ShaderPDXferProcessor& xp = proc.cast<ShaderPDXferProcessor>(); | 556 const ShaderPDXferProcessor& xp = proc.cast<ShaderPDXferProcessor>(); |
557 | 557 |
558 GrGLSLBlend::AppendMode(fragBuilder, srcColor, dstColor, outColor, xp.ge
tXfermode()); | 558 GrGLSLBlend::AppendMode(fragBuilder, srcColor, dstColor, outColor, xp.ge
tXfermode()); |
559 | 559 |
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911 } | 911 } |
912 return get_lcd_blend_formula(optimizations.fCoveragePOI, | 912 return get_lcd_blend_formula(optimizations.fCoveragePOI, |
913 SkXfermode::kSrcOver_Mode).hasSecondaryOutp
ut(); | 913 SkXfermode::kSrcOver_Mode).hasSecondaryOutp
ut(); |
914 } | 914 } |
915 // We fallback on the shader XP when the blend formula would use dual source
blending but we | 915 // We fallback on the shader XP when the blend formula would use dual source
blending but we |
916 // don't have support for it. | 916 // don't have support for it. |
917 return get_blend_formula(optimizations.fColorPOI, optimizations.fCoveragePOI
, | 917 return get_blend_formula(optimizations.fColorPOI, optimizations.fCoveragePOI
, |
918 hasMixedSamples, SkXfermode::kSrcOver_Mode).hasSeco
ndaryOutput(); | 918 hasMixedSamples, SkXfermode::kSrcOver_Mode).hasSeco
ndaryOutput(); |
919 } | 919 } |
920 | 920 |
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