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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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165 | 165 |
166 void onFinalize() override; | 166 void onFinalize() override; |
167 | 167 |
168 /** | 168 /** |
169 * Features that should only be enabled by GrGLSLFragmentShaderBuilder itsel
f. | 169 * Features that should only be enabled by GrGLSLFragmentShaderBuilder itsel
f. |
170 */ | 170 */ |
171 enum GLSLPrivateFeature { | 171 enum GLSLPrivateFeature { |
172 kFragCoordConventions_GLSLPrivateFeature = kLastGLSLFeature + 1, | 172 kFragCoordConventions_GLSLPrivateFeature = kLastGLSLFeature + 1, |
173 kBlendEquationAdvanced_GLSLPrivateFeature, | 173 kBlendEquationAdvanced_GLSLPrivateFeature, |
174 kBlendFuncExtended_GLSLPrivateFeature, | 174 kBlendFuncExtended_GLSLPrivateFeature, |
175 kExternalTexture_GLSLPrivateFeature, | |
176 kLastGLSLPrivateFeature = kBlendFuncExtended_GLSLPrivateFeature | 175 kLastGLSLPrivateFeature = kBlendFuncExtended_GLSLPrivateFeature |
177 }; | 176 }; |
178 | 177 |
179 // Interpretation of FragPosKey when generating code | 178 // Interpretation of FragPosKey when generating code |
180 enum { | 179 enum { |
181 kNoFragPosRead_FragPosKey = 0, // The fragment positition wil
l not be needed. | 180 kNoFragPosRead_FragPosKey = 0, // The fragment positition wil
l not be needed. |
182 kTopLeftFragPosRead_FragPosKey = 0x1,// Read frag pos relative to t
op-left. | 181 kTopLeftFragPosRead_FragPosKey = 0x1,// Read frag pos relative to t
op-left. |
183 kBottomLeftFragPosRead_FragPosKey = 0x2,// Read frag pos relative to b
ottom-left. | 182 kBottomLeftFragPosRead_FragPosKey = 0x2,// Read frag pos relative to b
ottom-left. |
184 }; | 183 }; |
185 | 184 |
186 static const char* kDstTextureColorName; | 185 static const char* kDstTextureColorName; |
187 | 186 |
188 bool fSetupFragPosition; | 187 bool fSetupFragPosition; |
189 bool fTopLeftFragPosRead; | 188 bool fTopLeftFragPosRead; |
190 int fCustomColorOutputIndex; | 189 int fCustomColorOutputIndex; |
191 | 190 |
192 // some state to verify shaders and effects are consistent, this is reset be
tween effects by | 191 // some state to verify shaders and effects are consistent, this is reset be
tween effects by |
193 // the program creator | 192 // the program creator |
194 bool fHasReadDstColor; | 193 bool fHasReadDstColor; |
195 bool fHasReadFragmentPosition; | 194 bool fHasReadFragmentPosition; |
196 | 195 |
197 friend class GrGLProgramBuilder; | 196 friend class GrGLProgramBuilder; |
198 | 197 |
199 typedef GrGLSLXPFragmentBuilder INHERITED; | 198 typedef GrGLSLXPFragmentBuilder INHERITED; |
200 }; | 199 }; |
201 | 200 |
202 #endif | 201 #endif |
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