OLD | NEW |
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 #include "GrGLFragmentShaderBuilder.h" | 8 #include "GrGLFragmentShaderBuilder.h" |
9 #include "GrGLProgramBuilder.h" | 9 #include "GrGLProgramBuilder.h" |
10 #include "gl/GrGLGpu.h" | 10 #include "gl/GrGLGpu.h" |
(...skipping 133 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
144 if (fTopLeftFragPosRead) { | 144 if (fTopLeftFragPosRead) { |
145 fSetupFragPosition = true; | 145 fSetupFragPosition = true; |
146 return "gl_FragCoord"; | 146 return "gl_FragCoord"; |
147 } else if (gpu->glCaps().fragCoordConventionsSupport()) { | 147 } else if (gpu->glCaps().fragCoordConventionsSupport()) { |
148 if (!fSetupFragPosition) { | 148 if (!fSetupFragPosition) { |
149 if (gpu->glslGeneration() < k150_GrGLSLGeneration) { | 149 if (gpu->glslGeneration() < k150_GrGLSLGeneration) { |
150 this->addFeature(1 << kFragCoordConventions_GLSLPrivateFeature, | 150 this->addFeature(1 << kFragCoordConventions_GLSLPrivateFeature, |
151 "GL_ARB_fragment_coord_conventions"); | 151 "GL_ARB_fragment_coord_conventions"); |
152 } | 152 } |
153 fInputs.push_back().set(kVec4f_GrSLType, | 153 fInputs.push_back().set(kVec4f_GrSLType, |
154 GrGLShaderVar::kIn_TypeModifier, | 154 GrGLSLShaderVar::kIn_TypeModifier, |
155 "gl_FragCoord", | 155 "gl_FragCoord", |
156 kDefault_GrSLPrecision, | 156 kDefault_GrSLPrecision, |
157 GrGLShaderVar::kUpperLeft_Origin); | 157 GrGLSLShaderVar::kUpperLeft_Origin); |
158 fSetupFragPosition = true; | 158 fSetupFragPosition = true; |
159 } | 159 } |
160 return "gl_FragCoord"; | 160 return "gl_FragCoord"; |
161 } else { | 161 } else { |
162 static const char* kTempName = "tmpXYFragCoord"; | 162 static const char* kTempName = "tmpXYFragCoord"; |
163 static const char* kCoordName = "fragCoordYDown"; | 163 static const char* kCoordName = "fragCoordYDown"; |
164 if (!fSetupFragPosition) { | 164 if (!fSetupFragPosition) { |
165 // temporarily change the stage index because we're inserting non-st
age code. | 165 // temporarily change the stage index because we're inserting non-st
age code. |
166 GrGLProgramBuilder::AutoStageRestore asr(fProgramBuilder); | 166 GrGLProgramBuilder::AutoStageRestore asr(fProgramBuilder); |
167 SkASSERT(!fProgramBuilder->fUniformHandles.fRTHeightUni.isValid()); | 167 SkASSERT(!fProgramBuilder->fUniformHandles.fRTHeightUni.isValid()); |
(...skipping 57 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
225 } else { | 225 } else { |
226 this->addLayoutQualifier("blend_support_all_equations", kOut_InterfaceQu
alifier); | 226 this->addLayoutQualifier("blend_support_all_equations", kOut_InterfaceQu
alifier); |
227 } | 227 } |
228 } | 228 } |
229 | 229 |
230 void GrGLFragmentShaderBuilder::enableCustomOutput() { | 230 void GrGLFragmentShaderBuilder::enableCustomOutput() { |
231 if (!fHasCustomColorOutput) { | 231 if (!fHasCustomColorOutput) { |
232 fHasCustomColorOutput = true; | 232 fHasCustomColorOutput = true; |
233 fCustomColorOutputIndex = fOutputs.count(); | 233 fCustomColorOutputIndex = fOutputs.count(); |
234 fOutputs.push_back().set(kVec4f_GrSLType, | 234 fOutputs.push_back().set(kVec4f_GrSLType, |
235 GrGLShaderVar::kOut_TypeModifier, | 235 GrGLSLShaderVar::kOut_TypeModifier, |
236 declared_color_output_name()); | 236 declared_color_output_name()); |
237 } | 237 } |
238 } | 238 } |
239 | 239 |
240 void GrGLFragmentShaderBuilder::enableSecondaryOutput() { | 240 void GrGLFragmentShaderBuilder::enableSecondaryOutput() { |
241 SkASSERT(!fHasSecondaryOutput); | 241 SkASSERT(!fHasSecondaryOutput); |
242 fHasSecondaryOutput = true; | 242 fHasSecondaryOutput = true; |
243 if (kGLES_GrGLStandard == fProgramBuilder->gpu()->ctxInfo().standard()) { | 243 if (kGLES_GrGLStandard == fProgramBuilder->gpu()->ctxInfo().standard()) { |
244 this->addFeature(1 << kBlendFuncExtended_GLSLPrivateFeature, "GL_EXT_ble
nd_func_extended"); | 244 this->addFeature(1 << kBlendFuncExtended_GLSLPrivateFeature, "GL_EXT_ble
nd_func_extended"); |
245 } | 245 } |
246 | 246 |
247 // If the primary output is declared, we must declare also the secondary out
put | 247 // If the primary output is declared, we must declare also the secondary out
put |
248 // and vice versa, since it is not allowed to use a built-in gl_FragColor an
d a custom | 248 // and vice versa, since it is not allowed to use a built-in gl_FragColor an
d a custom |
249 // output. The condition also co-incides with the condition in whici GLES SL
2.0 | 249 // output. The condition also co-incides with the condition in whici GLES SL
2.0 |
250 // requires the built-in gl_SecondaryFragColorEXT, where as 3.0 requires a c
ustom output. | 250 // requires the built-in gl_SecondaryFragColorEXT, where as 3.0 requires a c
ustom output. |
251 const GrGLSLCaps& caps = *fProgramBuilder->gpu()->glCaps().glslCaps(); | 251 const GrGLSLCaps& caps = *fProgramBuilder->gpu()->glCaps().glslCaps(); |
252 if (caps.mustDeclareFragmentShaderOutput()) { | 252 if (caps.mustDeclareFragmentShaderOutput()) { |
253 fOutputs.push_back().set(kVec4f_GrSLType, GrGLShaderVar::kOut_TypeModifi
er, | 253 fOutputs.push_back().set(kVec4f_GrSLType, GrGLSLShaderVar::kOut_TypeModi
fier, |
254 declared_secondary_color_output_name()); | 254 declared_secondary_color_output_name()); |
255 } | 255 } |
256 } | 256 } |
257 | 257 |
258 const char* GrGLFragmentShaderBuilder::getPrimaryColorOutputName() const { | 258 const char* GrGLFragmentShaderBuilder::getPrimaryColorOutputName() const { |
259 return fHasCustomColorOutput ? declared_color_output_name() : "gl_FragColor"
; | 259 return fHasCustomColorOutput ? declared_color_output_name() : "gl_FragColor"
; |
260 } | 260 } |
261 | 261 |
262 const char* GrGLFragmentShaderBuilder::getSecondaryColorOutputName() const { | 262 const char* GrGLFragmentShaderBuilder::getSecondaryColorOutputName() const { |
263 const GrGLSLCaps& caps = *fProgramBuilder->gpu()->glCaps().glslCaps(); | 263 const GrGLSLCaps& caps = *fProgramBuilder->gpu()->glCaps().glslCaps(); |
(...skipping 27 matching lines...) Expand all Loading... |
291 GL_CALL(BindFragDataLocationIndexed(programID, 0, 1, | 291 GL_CALL(BindFragDataLocationIndexed(programID, 0, 1, |
292 declared_secondary_color_output_name
())); | 292 declared_secondary_color_output_name
())); |
293 } | 293 } |
294 } | 294 } |
295 | 295 |
296 void GrGLFragmentShaderBuilder::addVarying(GrGLVarying* v, GrSLPrecision fsPrec)
{ | 296 void GrGLFragmentShaderBuilder::addVarying(GrGLVarying* v, GrSLPrecision fsPrec)
{ |
297 v->fFsIn = v->fVsOut; | 297 v->fFsIn = v->fVsOut; |
298 if (v->fGsOut) { | 298 if (v->fGsOut) { |
299 v->fFsIn = v->fGsOut; | 299 v->fFsIn = v->fGsOut; |
300 } | 300 } |
301 fInputs.push_back().set(v->fType, GrGLShaderVar::kVaryingIn_TypeModifier, v-
>fFsIn, fsPrec); | 301 fInputs.push_back().set(v->fType, GrGLSLShaderVar::kVaryingIn_TypeModifier,
v->fFsIn, fsPrec); |
302 } | 302 } |
303 | 303 |
304 void GrGLFragmentBuilder::onBeforeChildProcEmitCode() { | 304 void GrGLFragmentBuilder::onBeforeChildProcEmitCode() { |
305 SkASSERT(fSubstageIndices.count() >= 1); | 305 SkASSERT(fSubstageIndices.count() >= 1); |
306 fSubstageIndices.push_back(0); | 306 fSubstageIndices.push_back(0); |
307 // second-to-last value in the fSubstageIndices stack is the index of the ch
ild proc | 307 // second-to-last value in the fSubstageIndices stack is the index of the ch
ild proc |
308 // at that level which is currently emitting code. | 308 // at that level which is currently emitting code. |
309 fMangleString.appendf("_c%d", fSubstageIndices[fSubstageIndices.count() - 2]
); | 309 fMangleString.appendf("_c%d", fSubstageIndices[fSubstageIndices.count() - 2]
); |
310 } | 310 } |
311 | 311 |
312 void GrGLFragmentBuilder::onAfterChildProcEmitCode() { | 312 void GrGLFragmentBuilder::onAfterChildProcEmitCode() { |
313 SkASSERT(fSubstageIndices.count() >= 2); | 313 SkASSERT(fSubstageIndices.count() >= 2); |
314 fSubstageIndices.pop_back(); | 314 fSubstageIndices.pop_back(); |
315 fSubstageIndices.back()++; | 315 fSubstageIndices.back()++; |
316 int removeAt = fMangleString.findLastOf('_'); | 316 int removeAt = fMangleString.findLastOf('_'); |
317 fMangleString.remove(removeAt, fMangleString.size() - removeAt); | 317 fMangleString.remove(removeAt, fMangleString.size() - removeAt); |
318 } | 318 } |
OLD | NEW |