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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/GrConstColorProcessor.h" | 8 #include "effects/GrConstColorProcessor.h" |
| 9 #include "gl/GrGLFragmentProcessor.h" | 9 #include "glsl/GrGLSLFragmentProcessor.h" |
| 10 #include "glsl/GrGLSLFragmentShaderBuilder.h" | 10 #include "glsl/GrGLSLFragmentShaderBuilder.h" |
| 11 #include "glsl/GrGLSLProgramBuilder.h" | 11 #include "glsl/GrGLSLProgramBuilder.h" |
| 12 #include "glsl/GrGLSLProgramDataManager.h" | 12 #include "glsl/GrGLSLProgramDataManager.h" |
| 13 | 13 |
| 14 class GLConstColorProcessor : public GrGLFragmentProcessor { | 14 class GLConstColorProcessor : public GrGLSLFragmentProcessor { |
| 15 public: | 15 public: |
| 16 GLConstColorProcessor() : fPrevColor(GrColor_ILLEGAL) {} | 16 GLConstColorProcessor() : fPrevColor(GrColor_ILLEGAL) {} |
| 17 | 17 |
| 18 void emitCode(EmitArgs& args) override { | 18 void emitCode(EmitArgs& args) override { |
| 19 GrGLSLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuild
er(); | 19 GrGLSLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuild
er(); |
| 20 const char* colorUni; | 20 const char* colorUni; |
| 21 fColorUniform = args.fBuilder->addUniform(GrGLSLProgramBuilder::kFragmen
t_Visibility, | 21 fColorUniform = args.fBuilder->addUniform(GrGLSLProgramBuilder::kFragmen
t_Visibility, |
| 22 kVec4f_GrSLType, kMedium_GrSLPrecisi
on, "constantColor", | 22 kVec4f_GrSLType, kMedium_GrSLPrecisi
on, "constantColor", |
| 23 &colorUni); | 23 &colorUni); |
| 24 GrConstColorProcessor::InputMode mode = args.fFp.cast<GrConstColorProces
sor>().inputMode(); | 24 GrConstColorProcessor::InputMode mode = args.fFp.cast<GrConstColorProces
sor>().inputMode(); |
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| 56 }; | 56 }; |
| 57 pdm.set4fv(fColorUniform, 1, floatColor); | 57 pdm.set4fv(fColorUniform, 1, floatColor); |
| 58 fPrevColor = color; | 58 fPrevColor = color; |
| 59 } | 59 } |
| 60 } | 60 } |
| 61 | 61 |
| 62 private: | 62 private: |
| 63 GrGLSLProgramDataManager::UniformHandle fColorUniform; | 63 GrGLSLProgramDataManager::UniformHandle fColorUniform; |
| 64 GrColor fPrevColor; | 64 GrColor fPrevColor; |
| 65 | 65 |
| 66 typedef GrGLFragmentProcessor INHERITED; | 66 typedef GrGLSLFragmentProcessor INHERITED; |
| 67 }; | 67 }; |
| 68 | 68 |
| 69 /////////////////////////////////////////////////////////////////////////////// | 69 /////////////////////////////////////////////////////////////////////////////// |
| 70 | 70 |
| 71 void GrConstColorProcessor::onComputeInvariantOutput(GrInvariantOutput* inout) c
onst { | 71 void GrConstColorProcessor::onComputeInvariantOutput(GrInvariantOutput* inout) c
onst { |
| 72 if (kIgnore_InputMode == fMode) { | 72 if (kIgnore_InputMode == fMode) { |
| 73 inout->setToOther(kRGBA_GrColorComponentFlags, fColor, | 73 inout->setToOther(kRGBA_GrColorComponentFlags, fColor, |
| 74 GrInvariantOutput::kWillNot_ReadInput); | 74 GrInvariantOutput::kWillNot_ReadInput); |
| 75 } else { | 75 } else { |
| 76 GrColor r = GrColorUnpackR(fColor); | 76 GrColor r = GrColorUnpackR(fColor); |
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| 89 inout->mulAlphaByKnownFourComponents(fColor); | 89 inout->mulAlphaByKnownFourComponents(fColor); |
| 90 } | 90 } |
| 91 } | 91 } |
| 92 } | 92 } |
| 93 } | 93 } |
| 94 | 94 |
| 95 void GrConstColorProcessor::onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKe
yBuilder* b) const { | 95 void GrConstColorProcessor::onGetGLProcessorKey(const GrGLSLCaps&, GrProcessorKe
yBuilder* b) const { |
| 96 b->add32(fMode); | 96 b->add32(fMode); |
| 97 } | 97 } |
| 98 | 98 |
| 99 GrGLFragmentProcessor* GrConstColorProcessor::onCreateGLInstance() const { | 99 GrGLSLFragmentProcessor* GrConstColorProcessor::onCreateGLInstance() const { |
| 100 return new GLConstColorProcessor; | 100 return new GLConstColorProcessor; |
| 101 } | 101 } |
| 102 | 102 |
| 103 bool GrConstColorProcessor::onIsEqual(const GrFragmentProcessor& other) const { | 103 bool GrConstColorProcessor::onIsEqual(const GrFragmentProcessor& other) const { |
| 104 const GrConstColorProcessor& that = other.cast<GrConstColorProcessor>(); | 104 const GrConstColorProcessor& that = other.cast<GrConstColorProcessor>(); |
| 105 return fMode == that.fMode && fColor == that.fColor; | 105 return fMode == that.fMode && fColor == that.fColor; |
| 106 } | 106 } |
| 107 | 107 |
| 108 /////////////////////////////////////////////////////////////////////////////// | 108 /////////////////////////////////////////////////////////////////////////////// |
| 109 | 109 |
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| 125 color = 0; | 125 color = 0; |
| 126 break; | 126 break; |
| 127 case 2: | 127 case 2: |
| 128 color = d->fRandom->nextULessThan(0x100); | 128 color = d->fRandom->nextULessThan(0x100); |
| 129 color = color | (color << 8) | (color << 16) | (color << 24); | 129 color = color | (color << 8) | (color << 16) | (color << 24); |
| 130 break; | 130 break; |
| 131 } | 131 } |
| 132 InputMode mode = static_cast<InputMode>(d->fRandom->nextULessThan(kInputMode
Cnt)); | 132 InputMode mode = static_cast<InputMode>(d->fRandom->nextULessThan(kInputMode
Cnt)); |
| 133 return GrConstColorProcessor::Create(color, mode); | 133 return GrConstColorProcessor::Create(color, mode); |
| 134 } | 134 } |
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