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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 GrGLProgramBuilder_DEFINED | 8 #ifndef GrGLProgramBuilder_DEFINED |
| 9 #define GrGLProgramBuilder_DEFINED | 9 #define GrGLProgramBuilder_DEFINED |
| 10 | 10 |
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| 234 | 234 |
| 235 const GrOptDrawState& optState() const { return fOptState; } | 235 const GrOptDrawState& optState() const { return fOptState; } |
| 236 const GrProgramDesc& desc() const { return fDesc; } | 236 const GrProgramDesc& desc() const { return fDesc; } |
| 237 const GrProgramDesc::KeyHeader& header() const { return fDesc.header(); } | 237 const GrProgramDesc::KeyHeader& header() const { return fDesc.header(); } |
| 238 | 238 |
| 239 // Generates a name for a variable. The generated string will be name prefix
ed by the prefix | 239 // Generates a name for a variable. The generated string will be name prefix
ed by the prefix |
| 240 // char (unless the prefix is '\0'). It also mangles the name to be stage-sp
ecific if we're | 240 // char (unless the prefix is '\0'). It also mangles the name to be stage-sp
ecific if we're |
| 241 // generating stage code. | 241 // generating stage code. |
| 242 void nameVariable(SkString* out, char prefix, const char* name); | 242 void nameVariable(SkString* out, char prefix, const char* name); |
| 243 void setupUniformColorAndCoverageIfNeeded(GrGLSLExpr4* inputColor, GrGLSLExp
r1* inputCoverage); | 243 void setupUniformColorAndCoverageIfNeeded(GrGLSLExpr4* inputColor, GrGLSLExp
r1* inputCoverage); |
| 244 void emitAndInstallProcs(GrGLSLExpr4* inputColor, | 244 void emitAndInstallProcs(const GrOptDrawState& optState, |
| 245 GrGLSLExpr4* inputColor, |
| 245 GrGLSLExpr4* inputCoverage); | 246 GrGLSLExpr4* inputCoverage); |
| 246 void emitAndInstallFragProcs(int procOffset, int numProcs, GrGLSLExpr4* inOu
t); | 247 void emitAndInstallFragProcs(int procOffset, int numProcs, GrGLSLExpr4* inOu
t); |
| 247 template <class Proc> | 248 template <class Proc> |
| 248 void emitAndInstallProc(const Proc&, | 249 void emitAndInstallProc(const Proc&, |
| 249 int index, | 250 int index, |
| 250 const ProcKeyProvider&, | 251 const ProcKeyProvider&, |
| 251 const GrGLSLExpr4& input, | 252 const GrGLSLExpr4& input, |
| 252 GrGLSLExpr4* output); | 253 GrGLSLExpr4* output); |
| 253 | 254 |
| 254 // these emit functions help to keep the createAndEmitProcessors template ge
neral | 255 // these emit functions help to keep the createAndEmitProcessors template ge
neral |
| 255 void emitAndInstallProc(const GrFragmentStage&, | 256 void emitAndInstallProc(const GrFragmentStage&, |
| 256 const GrProcessorKey&, | 257 const GrProcessorKey&, |
| 257 const char* outColor, | 258 const char* outColor, |
| 258 const char* inColor); | 259 const char* inColor); |
| 259 void emitAndInstallProc(const GrGeometryProcessor&, | 260 void emitAndInstallProc(const GrGeometryProcessor&, |
| 260 const GrProcessorKey&, | 261 const GrProcessorKey&, |
| 261 const char* outCoverage, | 262 const char* outColor, |
| 262 const char* inCoverage); | 263 const char* inColor); |
| 263 void verify(const GrGeometryProcessor&); | 264 void verify(const GrGeometryProcessor&); |
| 264 void verify(const GrFragmentProcessor&); | 265 void verify(const GrFragmentProcessor&); |
| 265 void emitSamplers(const GrProcessor&, | 266 void emitSamplers(const GrProcessor&, |
| 266 GrGLProcessor::TextureSamplerArray* outSamplers, | 267 GrGLProcessor::TextureSamplerArray* outSamplers, |
| 267 GrGLInstalledProc*); | 268 GrGLInstalledProc*); |
| 268 | 269 |
| 269 // each specific program builder has a distinct transform and must override
this function | 270 // each specific program builder has a distinct transform and must override
this function |
| 270 virtual void emitTransforms(const GrFragmentStage&, | 271 virtual void emitTransforms(const GrFragmentStage&, |
| 271 GrGLProcessor::TransformedCoordsArray* outCoords
, | 272 GrGLProcessor::TransformedCoordsArray* outCoords
, |
| 272 GrGLInstalledFragProc*); | 273 GrGLInstalledFragProc*); |
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| 306 public: | 307 public: |
| 307 AutoStageAdvance(GrGLProgramBuilder* pb) : fPB(pb) { fPB->reset(); } | 308 AutoStageAdvance(GrGLProgramBuilder* pb) : fPB(pb) { fPB->reset(); } |
| 308 ~AutoStageAdvance() { fPB->exitStage(); } | 309 ~AutoStageAdvance() { fPB->exitStage(); } |
| 309 private: | 310 private: |
| 310 GrGLProgramBuilder* fPB; | 311 GrGLProgramBuilder* fPB; |
| 311 }; | 312 }; |
| 312 void exitStage() { fOutOfStage = true; } | 313 void exitStage() { fOutOfStage = true; } |
| 313 void enterStage() { fOutOfStage = false; } | 314 void enterStage() { fOutOfStage = false; } |
| 314 int stageIndex() const { return fStageIndex; } | 315 int stageIndex() const { return fStageIndex; } |
| 315 | 316 |
| 316 struct TransformVarying { | |
| 317 TransformVarying(const GrGLVarying& v, const char* uniName, const char*
sourceCoords) | |
| 318 : fV(v), fUniName(uniName), fSourceCoords(sourceCoords) {} | |
| 319 GrGLVarying fV; | |
| 320 SkString fUniName; | |
| 321 SkString fSourceCoords; | |
| 322 }; | |
| 323 | |
| 324 void addCoordVarying(const char* name, GrGLVarying* v, const char* uniName, | |
| 325 const char* sourceCoords) { | |
| 326 this->addVarying(name, v); | |
| 327 fCoordVaryings.push_back(TransformVarying(*v, uniName, sourceCoords)); | |
| 328 } | |
| 329 | |
| 330 const char* rtAdjustment() const { return "rtAdjustment"; } | |
| 331 | |
| 332 // number of each input/output type in a single allocation block, used by ma
ny builders | 317 // number of each input/output type in a single allocation block, used by ma
ny builders |
| 333 static const int kVarsPerBlock; | 318 static const int kVarsPerBlock; |
| 334 | 319 |
| 335 BuiltinUniformHandles fUniformHandles; | 320 BuiltinUniformHandles fUniformHandles; |
| 336 GrGLVertexBuilder fVS; | 321 GrGLVertexBuilder fVS; |
| 337 GrGLGeometryBuilder fGS; | 322 GrGLGeometryBuilder fGS; |
| 338 GrGLFragmentShaderBuilder fFS; | 323 GrGLFragmentShaderBuilder fFS; |
| 339 bool fOutOfStage; | 324 bool fOutOfStage; |
| 340 int fStageIndex; | 325 int fStageIndex; |
| 341 | 326 |
| 342 GrGLInstalledGeoProc* fGeometryProcessor; | 327 GrGLInstalledGeoProc* fGeometryProcessor; |
| 343 SkAutoTUnref<GrGLInstalledFragProcs> fFragmentProcessors; | 328 SkAutoTUnref<GrGLInstalledFragProcs> fFragmentProcessors; |
| 344 | 329 |
| 345 const GrOptDrawState& fOptState; | 330 const GrOptDrawState& fOptState; |
| 346 const GrProgramDesc& fDesc; | 331 const GrProgramDesc& fDesc; |
| 347 GrGpuGL* fGpu; | 332 GrGpuGL* fGpu; |
| 348 UniformInfoArray fUniforms; | 333 UniformInfoArray fUniforms; |
| 349 SkSTArray<16, TransformVarying, true> fCoordVaryings; | |
| 350 | 334 |
| 351 friend class GrGLShaderBuilder; | 335 friend class GrGLShaderBuilder; |
| 352 friend class GrGLVertexBuilder; | 336 friend class GrGLVertexBuilder; |
| 353 friend class GrGLFragmentShaderBuilder; | 337 friend class GrGLFragmentShaderBuilder; |
| 354 friend class GrGLGeometryBuilder; | 338 friend class GrGLGeometryBuilder; |
| 355 }; | 339 }; |
| 356 | 340 |
| 357 /** | 341 /** |
| 358 * The below structs represent processors installed in programs. All processors
can have texture | 342 * The below structs represent processors installed in programs. All processors
can have texture |
| 359 * samplers, but only frag processors have coord transforms, hence the need for
different structs | 343 * samplers, but only frag processors have coord transforms, hence the need for
different structs |
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| 401 SkSTArray<2, Transform, true> fTransforms; | 385 SkSTArray<2, Transform, true> fTransforms; |
| 402 bool fLocalCoordAttrib; | 386 bool fLocalCoordAttrib; |
| 403 }; | 387 }; |
| 404 | 388 |
| 405 struct GrGLInstalledFragProcs : public SkRefCnt { | 389 struct GrGLInstalledFragProcs : public SkRefCnt { |
| 406 virtual ~GrGLInstalledFragProcs(); | 390 virtual ~GrGLInstalledFragProcs(); |
| 407 SkSTArray<8, GrGLInstalledFragProc*, true> fProcs; | 391 SkSTArray<8, GrGLInstalledFragProc*, true> fProcs; |
| 408 }; | 392 }; |
| 409 | 393 |
| 410 #endif | 394 #endif |
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