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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 "GrPathProcessor.h" | 8 #include "GrPathProcessor.h" |
9 | 9 |
10 #include "gl/GrGLGpu.h" | 10 #include "gl/GrGLGpu.h" |
11 #include "glsl/GrGLSLCaps.h" | 11 #include "glsl/GrGLSLCaps.h" |
| 12 #include "glsl/GrGLSLFragmentShaderBuilder.h" |
12 #include "glsl/GrGLSLProcessorTypes.h" | 13 #include "glsl/GrGLSLProcessorTypes.h" |
| 14 #include "glsl/GrGLSLProgramBuilder.h" |
13 | 15 |
14 class GrGLPathProcessor : public GrGLPrimitiveProcessor { | 16 class GrGLPathProcessor : public GrGLPrimitiveProcessor { |
15 public: | 17 public: |
16 GrGLPathProcessor() : fColor(GrColor_ILLEGAL) {} | 18 GrGLPathProcessor() : fColor(GrColor_ILLEGAL) {} |
17 | 19 |
18 static void GenKey(const GrPathProcessor& pathProc, | 20 static void GenKey(const GrPathProcessor& pathProc, |
19 const GrGLSLCaps&, | 21 const GrGLSLCaps&, |
20 GrProcessorKeyBuilder* b) { | 22 GrProcessorKeyBuilder* b) { |
21 b->add32(SkToInt(pathProc.opts().readsColor()) | | 23 b->add32(SkToInt(pathProc.opts().readsColor()) | |
22 SkToInt(pathProc.opts().readsCoverage()) << 16); | 24 SkToInt(pathProc.opts().readsCoverage()) << 16); |
23 } | 25 } |
24 | 26 |
25 void emitCode(EmitArgs& args) override { | 27 void emitCode(EmitArgs& args) override { |
26 GrGLSLGPBuilder* pb = args.fPB; | 28 GrGLSLGPBuilder* pb = args.fPB; |
27 GrGLFragmentBuilder* fs = args.fPB->getFragmentShaderBuilder(); | 29 GrGLSLFragmentBuilder* fs = args.fPB->getFragmentShaderBuilder(); |
28 const GrPathProcessor& pathProc = args.fGP.cast<GrPathProcessor>(); | 30 const GrPathProcessor& pathProc = args.fGP.cast<GrPathProcessor>(); |
29 | 31 |
30 // emit transforms | 32 // emit transforms |
31 this->emitTransforms(args.fPB, args.fTransformsIn, args.fTransformsOut); | 33 this->emitTransforms(args.fPB, args.fTransformsIn, args.fTransformsOut); |
32 | 34 |
33 // Setup uniform color | 35 // Setup uniform color |
34 if (pathProc.opts().readsColor()) { | 36 if (pathProc.opts().readsColor()) { |
35 const char* stagedLocalVarName; | 37 const char* stagedLocalVarName; |
36 fColorUniform = pb->addUniform(GrGLProgramBuilder::kFragment_Visibil
ity, | 38 fColorUniform = pb->addUniform(GrGLSLProgramBuilder::kFragment_Visib
ility, |
37 kVec4f_GrSLType, | 39 kVec4f_GrSLType, |
38 kDefault_GrSLPrecision, | 40 kDefault_GrSLPrecision, |
39 "Color", | 41 "Color", |
40 &stagedLocalVarName); | 42 &stagedLocalVarName); |
41 fs->codeAppendf("%s = %s;", args.fOutputColor, stagedLocalVarName); | 43 fs->codeAppendf("%s = %s;", args.fOutputColor, stagedLocalVarName); |
42 } | 44 } |
43 | 45 |
44 // setup constant solid coverage | 46 // setup constant solid coverage |
45 if (pathProc.opts().readsCoverage()) { | 47 if (pathProc.opts().readsCoverage()) { |
46 fs->codeAppendf("%s = vec4(1);", args.fOutputCoverage); | 48 fs->codeAppendf("%s = vec4(1);", args.fOutputCoverage); |
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126 | 128 |
127 void GrPathProcessor::getGLProcessorKey(const GrGLSLCaps& caps, | 129 void GrPathProcessor::getGLProcessorKey(const GrGLSLCaps& caps, |
128 GrProcessorKeyBuilder* b) const { | 130 GrProcessorKeyBuilder* b) const { |
129 GrGLPathProcessor::GenKey(*this, caps, b); | 131 GrGLPathProcessor::GenKey(*this, caps, b); |
130 } | 132 } |
131 | 133 |
132 GrGLPrimitiveProcessor* GrPathProcessor::createGLInstance(const GrGLSLCaps& caps
) const { | 134 GrGLPrimitiveProcessor* GrPathProcessor::createGLInstance(const GrGLSLCaps& caps
) const { |
133 SkASSERT(caps.pathRenderingSupport()); | 135 SkASSERT(caps.pathRenderingSupport()); |
134 return new GrGLPathProcessor(); | 136 return new GrGLPathProcessor(); |
135 } | 137 } |
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