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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 #ifndef GrGLSLFragmentShaderBuilder_DEFINED | 8 #ifndef GrGLSLFragmentShaderBuilder_DEFINED |
9 #define GrGLSLFragmentShaderBuilder_DEFINED | 9 #define GrGLSLFragmentShaderBuilder_DEFINED |
10 | 10 |
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22 class GrGLSLFragmentBuilder : public GrGLSLShaderBuilder { | 22 class GrGLSLFragmentBuilder : public GrGLSLShaderBuilder { |
23 public: | 23 public: |
24 GrGLSLFragmentBuilder(GrGLSLProgramBuilder* program) : INHERITED(program) {} | 24 GrGLSLFragmentBuilder(GrGLSLProgramBuilder* program) : INHERITED(program) {} |
25 virtual ~GrGLSLFragmentBuilder() {} | 25 virtual ~GrGLSLFragmentBuilder() {} |
26 | 26 |
27 /** | 27 /** |
28 * Use of these features may require a GLSL extension to be enabled. Shaders
may not compile | 28 * Use of these features may require a GLSL extension to be enabled. Shaders
may not compile |
29 * if code is added that uses one of these features without calling enableFe
ature() | 29 * if code is added that uses one of these features without calling enableFe
ature() |
30 */ | 30 */ |
31 enum GLSLFeature { | 31 enum GLSLFeature { |
32 kStandardDerivatives_GLSLFeature = kLastGLSLPrivateFeature + 1, | 32 kPixelLocalStorage_GLSLFeature = kLastGLSLPrivateFeature + 1, |
33 kPixelLocalStorage_GLSLFeature, | |
34 kMultisampleInterpolation_GLSLFeature | 33 kMultisampleInterpolation_GLSLFeature |
35 }; | 34 }; |
36 | 35 |
37 /** | 36 /** |
38 * If the feature is supported then true is returned and any necessary #exte
nsion declarations | 37 * If the feature is supported then true is returned and any necessary #exte
nsion declarations |
39 * are added to the shaders. If the feature is not supported then false will
be returned. | 38 * are added to the shaders. If the feature is not supported then false will
be returned. |
40 */ | 39 */ |
41 virtual bool enableFeature(GLSLFeature) = 0; | 40 virtual bool enableFeature(GLSLFeature) = 0; |
42 | 41 |
43 /** | 42 /** |
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246 // the program creator | 245 // the program creator |
247 GrProcessor::RequiredFeatures fUsedProcessorFeatures; | 246 GrProcessor::RequiredFeatures fUsedProcessorFeatures; |
248 bool fHasReadDstColor; | 247 bool fHasReadDstColor; |
249 #endif | 248 #endif |
250 | 249 |
251 friend class GrGLSLProgramBuilder; | 250 friend class GrGLSLProgramBuilder; |
252 friend class GrGLProgramBuilder; | 251 friend class GrGLProgramBuilder; |
253 }; | 252 }; |
254 | 253 |
255 #endif | 254 #endif |
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