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1 /* | 1 /* |
2 * Copyright 2011 Google Inc. | 2 * Copyright 2011 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 GrDrawState_DEFINED | 8 #ifndef GrDrawState_DEFINED |
9 #define GrDrawState_DEFINED | 9 #define GrDrawState_DEFINED |
10 | 10 |
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299 *matrix = inverse; | 299 *matrix = inverse; |
300 } | 300 } |
301 return true; | 301 return true; |
302 } | 302 } |
303 return false; | 303 return false; |
304 } | 304 } |
305 | 305 |
306 //////////////////////////////////////////////////////////////////////////// | 306 //////////////////////////////////////////////////////////////////////////// |
307 | 307 |
308 /** | 308 /** |
309 * Preconcats the current view matrix and restores the previous view matrix
in the destructor. | 309 * Sets the viewmatrix to identity and restores it in the destructor. |
310 * Effect matrices are automatically adjusted to compensate and adjusted bac
k in the destructor. | 310 * TODO remove vm off of drawstate |
311 */ | 311 */ |
312 class AutoViewMatrixRestore : public ::SkNoncopyable { | 312 class AutoViewMatrixRestore : public ::SkNoncopyable { |
313 public: | 313 public: |
314 AutoViewMatrixRestore() : fDrawState(NULL) {} | 314 AutoViewMatrixRestore() { |
315 | |
316 AutoViewMatrixRestore(GrDrawState* ds, const SkMatrix& preconcatMatrix)
{ | |
317 fDrawState = NULL; | 315 fDrawState = NULL; |
318 this->set(ds, preconcatMatrix); | |
319 } | 316 } |
320 | 317 |
321 ~AutoViewMatrixRestore() { this->restore(); } | 318 AutoViewMatrixRestore(GrDrawState* ds) { |
| 319 SkASSERT(ds); |
| 320 fDrawState = ds; |
| 321 fViewMatrix = fDrawState->fViewMatrix; |
| 322 fDrawState->fViewMatrix = SkMatrix::I(); |
| 323 } |
322 | 324 |
323 /** | 325 void setIdentity(GrDrawState* ds) { |
324 * Can be called prior to destructor to restore the original matrix. | 326 SkASSERT(ds); |
325 */ | 327 fDrawState = ds; |
326 void restore(); | 328 fViewMatrix = fDrawState->fViewMatrix; |
| 329 fDrawState->fViewMatrix = SkMatrix::I(); |
| 330 } |
327 | 331 |
328 void set(GrDrawState* drawState, const SkMatrix& preconcatMatrix); | 332 ~AutoViewMatrixRestore() { |
329 | 333 if (fDrawState) { |
330 /** Sets the draw state's matrix to identity. This can fail because the
current view matrix | 334 fDrawState->fViewMatrix = fViewMatrix; |
331 is not invertible. */ | 335 } |
332 bool setIdentity(GrDrawState* drawState); | 336 } |
333 | 337 |
334 private: | 338 private: |
335 void doEffectCoordChanges(const SkMatrix& coordChangeMatrix); | |
336 | |
337 GrDrawState* fDrawState; | 339 GrDrawState* fDrawState; |
338 SkMatrix fViewMatrix; | 340 SkMatrix fViewMatrix; |
339 int fNumColorStages; | |
340 SkAutoSTArray<8, GrFragmentStage::SavedCoordChange> fSavedCoordChange
s; | |
341 }; | 341 }; |
342 | 342 |
| 343 |
343 /// @} | 344 /// @} |
344 | 345 |
345 /////////////////////////////////////////////////////////////////////////// | 346 /////////////////////////////////////////////////////////////////////////// |
346 /// @name Render Target | 347 /// @name Render Target |
347 //// | 348 //// |
348 | 349 |
349 /** | 350 /** |
350 * Retrieves the currently set render-target. | 351 * Retrieves the currently set render-target. |
351 * | 352 * |
352 * @return The currently set render target. | 353 * @return The currently set render target. |
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541 mutable bool fCoverageProcInfoValid; | 542 mutable bool fCoverageProcInfoValid; |
542 mutable GrColor fColorCache; | 543 mutable GrColor fColorCache; |
543 mutable GrColor fCoverageCache; | 544 mutable GrColor fCoverageCache; |
544 mutable const GrPrimitiveProcessor* fColorPrimProc; | 545 mutable const GrPrimitiveProcessor* fColorPrimProc; |
545 mutable const GrPrimitiveProcessor* fCoveragePrimProc; | 546 mutable const GrPrimitiveProcessor* fCoveragePrimProc; |
546 | 547 |
547 friend class GrOptDrawState; | 548 friend class GrOptDrawState; |
548 }; | 549 }; |
549 | 550 |
550 #endif | 551 #endif |
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