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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 "gl/GrGLXferProcessor.h" | 8 #include "glsl/GrGLSLXferProcessor.h" |
9 | 9 |
10 #include "GrXferProcessor.h" | 10 #include "GrXferProcessor.h" |
11 #include "glsl/GrGLSLFragmentShaderBuilder.h" | 11 #include "glsl/GrGLSLFragmentShaderBuilder.h" |
12 #include "glsl/GrGLSLProgramBuilder.h" | 12 #include "glsl/GrGLSLProgramBuilder.h" |
13 #include "glsl/GrGLSLProgramDataManager.h" | 13 #include "glsl/GrGLSLProgramDataManager.h" |
14 | 14 |
15 void GrGLXferProcessor::emitCode(const EmitArgs& args) { | 15 void GrGLSLXferProcessor::emitCode(const EmitArgs& args) { |
16 if (!args.fXP.willReadDstColor()) { | 16 if (!args.fXP.willReadDstColor()) { |
17 this->emitOutputsForBlendState(args); | 17 this->emitOutputsForBlendState(args); |
18 return; | 18 return; |
19 } | 19 } |
20 | 20 |
21 GrGLSLXPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); | 21 GrGLSLXPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder(); |
22 const char* dstColor = fsBuilder->dstColor(); | 22 const char* dstColor = fsBuilder->dstColor(); |
23 | 23 |
24 if (args.fXP.getDstTexture()) { | 24 if (args.fXP.getDstTexture()) { |
25 bool topDown = kTopLeft_GrSurfaceOrigin == args.fXP.getDstTexture()->ori
gin(); | 25 bool topDown = kTopLeft_GrSurfaceOrigin == args.fXP.getDstTexture()->ori
gin(); |
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71 } else { | 71 } else { |
72 fsBuilder->codeAppendf("%s = vec4(1.0);", args.fOutputSecondary); | 72 fsBuilder->codeAppendf("%s = vec4(1.0);", args.fOutputSecondary); |
73 } | 73 } |
74 } else if (args.fXP.readsCoverage()) { | 74 } else if (args.fXP.readsCoverage()) { |
75 fsBuilder->codeAppendf("%s = %s * %s + (vec4(1.0) - %s) * %s;", | 75 fsBuilder->codeAppendf("%s = %s * %s + (vec4(1.0) - %s) * %s;", |
76 args.fOutputPrimary, args.fInputCoverage, | 76 args.fOutputPrimary, args.fInputCoverage, |
77 args.fOutputPrimary, args.fInputCoverage, dstColo
r); | 77 args.fOutputPrimary, args.fInputCoverage, dstColo
r); |
78 } | 78 } |
79 } | 79 } |
80 | 80 |
81 void GrGLXferProcessor::setData(const GrGLSLProgramDataManager& pdm, const GrXfe
rProcessor& xp) { | 81 void GrGLSLXferProcessor::setData(const GrGLSLProgramDataManager& pdm, const GrX
ferProcessor& xp) { |
82 if (xp.getDstTexture()) { | 82 if (xp.getDstTexture()) { |
83 if (fDstTopLeftUni.isValid()) { | 83 if (fDstTopLeftUni.isValid()) { |
84 pdm.set2f(fDstTopLeftUni, static_cast<float>(xp.dstTextureOffset().f
X), | 84 pdm.set2f(fDstTopLeftUni, static_cast<float>(xp.dstTextureOffset().f
X), |
85 static_cast<float>(xp.dstTextureOffset().fY)); | 85 static_cast<float>(xp.dstTextureOffset().fY)); |
86 pdm.set2f(fDstScaleUni, 1.f / xp.getDstTexture()->width(), | 86 pdm.set2f(fDstScaleUni, 1.f / xp.getDstTexture()->width(), |
87 1.f / xp.getDstTexture()->height()); | 87 1.f / xp.getDstTexture()->height()); |
88 } else { | 88 } else { |
89 SkASSERT(!fDstScaleUni.isValid()); | 89 SkASSERT(!fDstScaleUni.isValid()); |
90 } | 90 } |
91 } else { | 91 } else { |
92 SkASSERT(!fDstTopLeftUni.isValid()); | 92 SkASSERT(!fDstTopLeftUni.isValid()); |
93 SkASSERT(!fDstScaleUni.isValid()); | 93 SkASSERT(!fDstScaleUni.isValid()); |
94 } | 94 } |
95 this->onSetData(pdm, xp); | 95 this->onSetData(pdm, xp); |
96 } | 96 } |
97 | 97 |
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