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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 "SkLumaColorFilter.h" | 8 #include "SkLumaColorFilter.h" |
9 | 9 |
10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
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78 public: | 78 public: |
79 GLProcessor(const GrBackendProcessorFactory& factory, | 79 GLProcessor(const GrBackendProcessorFactory& factory, |
80 const GrProcessor&) | 80 const GrProcessor&) |
81 : INHERITED(factory) { | 81 : INHERITED(factory) { |
82 } | 82 } |
83 | 83 |
84 static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBu
ilder* b) {} | 84 static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBu
ilder* b) {} |
85 | 85 |
86 virtual void emitCode(GrGLFPBuilder* builder, | 86 virtual void emitCode(GrGLFPBuilder* builder, |
87 const GrFragmentProcessor&, | 87 const GrFragmentProcessor&, |
88 const GrProcessorKey&, | |
89 const char* outputColor, | 88 const char* outputColor, |
90 const char* inputColor, | 89 const char* inputColor, |
91 const TransformedCoordsArray&, | 90 const TransformedCoordsArray&, |
92 const TextureSamplerArray&) SK_OVERRIDE { | 91 const TextureSamplerArray&) SK_OVERRIDE { |
93 if (NULL == inputColor) { | 92 if (NULL == inputColor) { |
94 inputColor = "vec4(1)"; | 93 inputColor = "vec4(1)"; |
95 } | 94 } |
96 | 95 |
97 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder
(); | 96 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder
(); |
98 fsBuilder->codeAppendf("\tfloat luma = dot(vec3(%f, %f, %f), %s.rgb)
;\n", | 97 fsBuilder->codeAppendf("\tfloat luma = dot(vec3(%f, %f, %f), %s.rgb)
;\n", |
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116 // The output is always black. The alpha value for the color passed in i
s arbitrary. | 115 // The output is always black. The alpha value for the color passed in i
s arbitrary. |
117 inout->setToOther(kRGB_GrColorComponentFlags, GrColorPackRGBA(0, 0, 0, 0
), | 116 inout->setToOther(kRGB_GrColorComponentFlags, GrColorPackRGBA(0, 0, 0, 0
), |
118 GrInvariantOutput::kWill_ReadInput); | 117 GrInvariantOutput::kWill_ReadInput); |
119 } | 118 } |
120 }; | 119 }; |
121 | 120 |
122 GrFragmentProcessor* SkLumaColorFilter::asFragmentProcessor(GrContext*) const { | 121 GrFragmentProcessor* SkLumaColorFilter::asFragmentProcessor(GrContext*) const { |
123 return LumaColorFilterEffect::Create(); | 122 return LumaColorFilterEffect::Create(); |
124 } | 123 } |
125 #endif | 124 #endif |
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