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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2007 The Android Open Source Project | 3 * Copyright 2007 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 #ifndef SkPicture_DEFINED | 10 #ifndef SkPicture_DEFINED |
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427 * Allocate a new SkPicture. Return NULL on failure. | 427 * Allocate a new SkPicture. Return NULL on failure. |
428 */ | 428 */ |
429 virtual SkPicture* create(int width, int height) = 0; | 429 virtual SkPicture* create(int width, int height) = 0; |
430 | 430 |
431 private: | 431 private: |
432 typedef SkRefCnt INHERITED; | 432 typedef SkRefCnt INHERITED; |
433 }; | 433 }; |
434 | 434 |
435 #endif | 435 #endif |
436 | 436 |
437 class SkBBHFactory { | 437 #ifdef SK_SUPPORT_LEGACY_PICTURE_HEADERS |
438 public: | 438 #include "SkPictureRecorder.h" |
439 /** | |
440 * Allocate a new SkBBoxHierarchy. Return NULL on failure. | |
441 */ | |
442 virtual SkBBoxHierarchy* operator()(int width, int height) const = 0; | |
443 virtual ~SkBBHFactory() {}; | |
444 }; | |
445 | |
446 class SK_API SkPictureRecorder : SkNoncopyable { | |
447 public: | |
448 #ifdef SK_SUPPORT_LEGACY_DERIVED_PICTURE_CLASSES | |
449 | |
450 SkPictureRecorder(SkPictureFactory* factory = NULL) { | |
451 fFactory.reset(factory); | |
452 if (NULL != fFactory.get()) { | |
453 fFactory.get()->ref(); | |
454 } | |
455 } | |
456 | |
457 /** Returns the canvas that records the drawing commands. | |
458 @param width the base width for the picture, as if the recording | |
459 canvas' bitmap had this width. | |
460 @param height the base width for the picture, as if the recording | |
461 canvas' bitmap had this height. | |
462 @param recordFlags optional flags that control recording. | |
463 @return the canvas. | |
464 */ | |
465 SkCanvas* beginRecording(int width, int height, uint32_t recordFlags = 0) { | |
466 if (NULL != fFactory) { | |
467 fPicture.reset(fFactory->create(width, height)); | |
468 recordFlags |= SkPicture::kOptimizeForClippedPlayback_RecordingFlag; | |
469 } else { | |
470 fPicture.reset(SkNEW(SkPicture)); | |
471 } | |
472 | |
473 return fPicture->beginRecording(width, height, recordFlags); | |
474 } | |
475 #endif | 439 #endif |
476 | 440 |
477 /** Returns the canvas that records the drawing commands. | |
478 @param width the base width for the picture, as if the recording | |
479 canvas' bitmap had this width. | |
480 @param height the base width for the picture, as if the recording | |
481 canvas' bitmap had this height. | |
482 @param bbhFactory factory to create desired acceleration structure | |
483 @param recordFlags optional flags that control recording. | |
484 @return the canvas. | |
485 */ | |
486 // TODO: allow default parameters once the other beginRecoding entry point i
s gone | |
487 SkCanvas* beginRecording(int width, int height, | |
488 SkBBHFactory* bbhFactory /* = NULL */, | |
489 uint32_t recordFlags /* = 0 */) { | |
490 fPicture.reset(SkNEW(SkPicture)); | |
491 return fPicture->beginRecording(width, height, bbhFactory, recordFlags); | |
492 } | |
493 | |
494 /** Returns the recording canvas if one is active, or NULL if recording is | |
495 not active. This does not alter the refcnt on the canvas (if present). | |
496 */ | |
497 SkCanvas* getRecordingCanvas() { | |
498 if (NULL != fPicture.get()) { | |
499 return fPicture->getRecordingCanvas(); | |
500 } | |
501 return NULL; | |
502 } | |
503 | |
504 /** Signal that the caller is done recording. This invalidates the canvas | |
505 returned by beginRecording/getRecordingCanvas, and returns the | |
506 created SkPicture. Note that the returned picture has its creation | |
507 ref which the caller must take ownership of. | |
508 */ | |
509 SkPicture* endRecording() { | |
510 if (NULL != fPicture.get()) { | |
511 fPicture->endRecording(); | |
512 return fPicture.detach(); | |
513 } | |
514 return NULL; | |
515 } | |
516 | |
517 /** Enable/disable all the picture recording optimizations (i.e., | |
518 those in SkPictureRecord). It is mainly intended for testing the | |
519 existing optimizations (i.e., to actually have the pattern | |
520 appear in an .skp we have to disable the optimization). Call right | |
521 after 'beginRecording'. | |
522 */ | |
523 void internalOnly_EnableOpts(bool enableOpts) { | |
524 if (NULL != fPicture.get()) { | |
525 fPicture->internalOnly_EnableOpts(enableOpts); | |
526 } | |
527 } | |
528 | |
529 private: | |
530 #ifdef SK_SUPPORT_LEGACY_DERIVED_PICTURE_CLASSES | |
531 SkAutoTUnref<SkPictureFactory> fFactory; | |
532 #endif | 441 #endif |
533 | |
534 SkAutoTUnref<SkPicture> fPicture; | |
535 | |
536 typedef SkNoncopyable INHERITED; | |
537 }; | |
538 | |
539 #endif | |
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