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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 GrGLSLShaderBuilder_DEFINED | 8 #ifndef GrGLSLShaderBuilder_DEFINED |
9 #define GrGLSLShaderBuilder_DEFINED | 9 #define GrGLSLShaderBuilder_DEFINED |
10 | 10 |
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145 /** | 145 /** |
146 * Features that should only be enabled internally by the builders. | 146 * Features that should only be enabled internally by the builders. |
147 */ | 147 */ |
148 enum GLSLPrivateFeature { | 148 enum GLSLPrivateFeature { |
149 kFragCoordConventions_GLSLPrivateFeature, | 149 kFragCoordConventions_GLSLPrivateFeature, |
150 kBlendEquationAdvanced_GLSLPrivateFeature, | 150 kBlendEquationAdvanced_GLSLPrivateFeature, |
151 kBlendFuncExtended_GLSLPrivateFeature, | 151 kBlendFuncExtended_GLSLPrivateFeature, |
152 kExternalTexture_GLSLPrivateFeature, | 152 kExternalTexture_GLSLPrivateFeature, |
153 kFramebufferFetch_GLSLPrivateFeature, | 153 kFramebufferFetch_GLSLPrivateFeature, |
154 kNoPerspectiveInterpolation_GLSLPrivateFeature, | 154 kNoPerspectiveInterpolation_GLSLPrivateFeature, |
155 kLastGLSLPrivateFeature = kNoPerspectiveInterpolation_GLSLPrivateFeature | 155 kSampleVariables_GLSLPrivateFeature, |
| 156 kSampleMaskOverrideCoverage_GLSLPrivateFeature, |
| 157 kLastGLSLPrivateFeature = kSampleMaskOverrideCoverage_GLSLPrivateFeature |
156 }; | 158 }; |
157 | 159 |
158 /* | 160 /* |
159 * A general function which enables an extension in a shader if the feature
bit is not present | 161 * A general function which enables an extension in a shader if the feature
bit is not present |
| 162 * |
| 163 * @return true if the feature bit was not yet present, false otherwise. |
160 */ | 164 */ |
161 void addFeature(uint32_t featureBit, const char* extensionName); | 165 bool addFeature(uint32_t featureBit, const char* extensionName); |
162 | 166 |
163 enum InterfaceQualifier { | 167 enum InterfaceQualifier { |
164 kOut_InterfaceQualifier, | 168 kOut_InterfaceQualifier, |
165 kLastInterfaceQualifier = kOut_InterfaceQualifier | 169 kLastInterfaceQualifier = kOut_InterfaceQualifier |
166 }; | 170 }; |
167 | 171 |
168 /* | 172 /* |
169 * A low level function to build default layout qualifiers. | 173 * A low level function to build default layout qualifiers. |
170 * | 174 * |
171 * e.g. layout(param1, param2, ...) out; | 175 * e.g. layout(param1, param2, ...) out; |
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226 int fCodeIndex; | 230 int fCodeIndex; |
227 bool fFinalized; | 231 bool fFinalized; |
228 | 232 |
229 friend class GrGLSLProgramBuilder; | 233 friend class GrGLSLProgramBuilder; |
230 friend class GrGLProgramBuilder; | 234 friend class GrGLProgramBuilder; |
231 friend class GrGLSLVaryingHandler; // to access noperspective interpolation
feature. | 235 friend class GrGLSLVaryingHandler; // to access noperspective interpolation
feature. |
232 friend class GrGLPathProgramBuilder; // to access fInputs. | 236 friend class GrGLPathProgramBuilder; // to access fInputs. |
233 friend class GrVkProgramBuilder; | 237 friend class GrVkProgramBuilder; |
234 }; | 238 }; |
235 #endif | 239 #endif |
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