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1 /* | 1 /* |
2 * Copyright 2010 Google Inc. | 2 * Copyright 2010 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 GrContext_DEFINED | 8 #ifndef GrContext_DEFINED |
9 #define GrContext_DEFINED | 9 #define GrContext_DEFINED |
10 | 10 |
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652 SkIPoint::Make(0,0)); | 652 SkIPoint::Make(0,0)); |
653 return true; | 653 return true; |
654 } | 654 } |
655 | 655 |
656 /** | 656 /** |
657 * After this returns any pending writes to the surface will have been issue
d to the backend 3D API. | 657 * After this returns any pending writes to the surface will have been issue
d to the backend 3D API. |
658 */ | 658 */ |
659 void flushSurfaceWrites(GrSurface* surface); | 659 void flushSurfaceWrites(GrSurface* surface); |
660 | 660 |
661 /** | 661 /** |
662 * Resolves a render target that has MSAA. The intermediate MSAA buffer is | 662 * Equivalent to flushSurfaceWrites but also performs MSAA resolve if necess
ary. This call is |
663 * down-sampled to the associated GrTexture (accessible via | 663 * used to make the surface contents available to be read in the backend 3D
API, usually for a |
664 * GrRenderTarget::asTexture()). Any pending draws to the render target will | 664 * compositing step external to Skia. |
665 * be executed before the resolve. | |
666 * | 665 * |
667 * This is only necessary when a client wants to access the object directly | 666 * It is not necessary to call this before reading the render target via Ski
a/GrContext. |
668 * using the backend API directly. GrContext will detect when it must | 667 * GrContext will detect when it must perform a resolve before reading pixel
s back from the |
669 * perform a resolve to a GrTexture used as the source of a draw or before | 668 * surface or using it as a texture. |
670 * reading pixels back from a GrTexture or GrRenderTarget. | |
671 */ | 669 */ |
672 void resolveRenderTarget(GrRenderTarget*); | 670 void prepareSurfaceForExternalRead(GrSurface*); |
673 | 671 |
674 /** | 672 /** |
675 * Provides a perfomance hint that the render target's contents are allowed | 673 * Provides a perfomance hint that the render target's contents are allowed |
676 * to become undefined. | 674 * to become undefined. |
677 */ | 675 */ |
678 void discardRenderTarget(GrRenderTarget*); | 676 void discardRenderTarget(GrRenderTarget*); |
679 | 677 |
680 #ifdef SK_DEVELOPER | 678 #ifdef SK_DEVELOPER |
681 void dumpFontCache() const; | 679 void dumpFontCache() const; |
682 #endif | 680 #endif |
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1011 /** | 1009 /** |
1012 * This callback allows the resource cache to callback into the GrContext | 1010 * This callback allows the resource cache to callback into the GrContext |
1013 * when the cache is still overbudget after a purge. | 1011 * when the cache is still overbudget after a purge. |
1014 */ | 1012 */ |
1015 static bool OverbudgetCB(void* data); | 1013 static bool OverbudgetCB(void* data); |
1016 | 1014 |
1017 typedef SkRefCnt INHERITED; | 1015 typedef SkRefCnt INHERITED; |
1018 }; | 1016 }; |
1019 | 1017 |
1020 #endif | 1018 #endif |
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