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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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75 | 75 |
76 class GLProcessor : public GrGLFragmentProcessor { | 76 class GLProcessor : public GrGLFragmentProcessor { |
77 public: | 77 public: |
78 GLProcessor(const GrBackendProcessorFactory& factory, | 78 GLProcessor(const GrBackendProcessorFactory& factory, |
79 const GrProcessor&) | 79 const GrProcessor&) |
80 : INHERITED(factory) { | 80 : INHERITED(factory) { |
81 } | 81 } |
82 | 82 |
83 static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBu
ilder* b) {} | 83 static void GenKey(const GrProcessor&, const GrGLCaps&, GrProcessorKeyBu
ilder* b) {} |
84 | 84 |
85 virtual void emitCode(GrGLProgramBuilder* builder, | 85 virtual void emitCode(GrGLFPBuilder* builder, |
86 const GrFragmentProcessor&, | 86 const GrFragmentProcessor&, |
87 const GrProcessorKey&, | 87 const GrProcessorKey&, |
88 const char* outputColor, | 88 const char* outputColor, |
89 const char* inputColor, | 89 const char* inputColor, |
90 const TransformedCoordsArray&, | 90 const TransformedCoordsArray&, |
91 const TextureSamplerArray&) SK_OVERRIDE { | 91 const TextureSamplerArray&) SK_OVERRIDE { |
92 if (NULL == inputColor) { | 92 if (NULL == inputColor) { |
93 inputColor = "vec4(1)"; | 93 inputColor = "vec4(1)"; |
94 } | 94 } |
95 | 95 |
96 GrGLFragmentShaderBuilder* fsBuilder = builder->getFragmentShaderBui
lder(); | 96 GrGLFPFragmentBuilder* fsBuilder = builder->getFragmentShaderBuilder
(); |
97 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", |
98 SK_ITU_BT709_LUM_COEFF_R, | 98 SK_ITU_BT709_LUM_COEFF_R, |
99 SK_ITU_BT709_LUM_COEFF_G, | 99 SK_ITU_BT709_LUM_COEFF_G, |
100 SK_ITU_BT709_LUM_COEFF_B, | 100 SK_ITU_BT709_LUM_COEFF_B, |
101 inputColor); | 101 inputColor); |
102 fsBuilder->codeAppendf("\t%s = vec4(0, 0, 0, luma);\n", | 102 fsBuilder->codeAppendf("\t%s = vec4(0, 0, 0, luma);\n", |
103 outputColor); | 103 outputColor); |
104 | 104 |
105 } | 105 } |
106 | 106 |
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118 inout->fColor = GrColorPackRGBA(0, 0, 0, GrColorUnpackA(inout->fColor)); | 118 inout->fColor = GrColorPackRGBA(0, 0, 0, GrColorUnpackA(inout->fColor)); |
119 inout->fValidFlags = kRGB_GrColorComponentFlags; | 119 inout->fValidFlags = kRGB_GrColorComponentFlags; |
120 inout->fIsSingleComponent = false; | 120 inout->fIsSingleComponent = false; |
121 } | 121 } |
122 }; | 122 }; |
123 | 123 |
124 GrFragmentProcessor* SkLumaColorFilter::asFragmentProcessor(GrContext*) const { | 124 GrFragmentProcessor* SkLumaColorFilter::asFragmentProcessor(GrContext*) const { |
125 return LumaColorFilterEffect::Create(); | 125 return LumaColorFilterEffect::Create(); |
126 } | 126 } |
127 #endif | 127 #endif |
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