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comparison: gfx/skia/trunk/include/gpu/SkGrPixelRef.h
gfx/skia/trunk/include/gpu/SkGrPixelRef.h
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:96a711af3f27 |
|---|---|
| 1 /* | |
| 2 * Copyright 2010 Google Inc. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license that can be | |
| 5 * found in the LICENSE file. | |
| 6 */ | |
| 7 | |
| 8 #ifndef SkGrPixelRef_DEFINED | |
| 9 #define SkGrPixelRef_DEFINED | |
| 10 | |
| 11 #include "SkBitmap.h" | |
| 12 #include "SkPixelRef.h" | |
| 13 #include "GrTexture.h" | |
| 14 #include "GrRenderTarget.h" | |
| 15 | |
| 16 | |
| 17 /** | |
| 18 * Common baseclass that implements onLockPixels() by calling onReadPixels(). | |
| 19 * Since it has a copy, it always returns false for onLockPixelsAreWritable(). | |
| 20 */ | |
| 21 class SK_API SkROLockPixelsPixelRef : public SkPixelRef { | |
| 22 public: | |
| 23 SK_DECLARE_INST_COUNT(SkROLockPixelsPixelRef) | |
| 24 SkROLockPixelsPixelRef(const SkImageInfo&); | |
| 25 virtual ~SkROLockPixelsPixelRef(); | |
| 26 | |
| 27 protected: | |
| 28 virtual bool onNewLockPixels(LockRec*) SK_OVERRIDE; | |
| 29 virtual void onUnlockPixels() SK_OVERRIDE; | |
| 30 virtual bool onLockPixelsAreWritable() const SK_OVERRIDE; // return false; | |
| 31 | |
| 32 private: | |
| 33 SkBitmap fBitmap; | |
| 34 typedef SkPixelRef INHERITED; | |
| 35 }; | |
| 36 | |
| 37 /** | |
| 38 * PixelRef that wraps a GrSurface | |
| 39 */ | |
| 40 class SK_API SkGrPixelRef : public SkROLockPixelsPixelRef { | |
| 41 public: | |
| 42 SK_DECLARE_INST_COUNT(SkGrPixelRef) | |
| 43 /** | |
| 44 * Constructs a pixel ref around a GrSurface. If the caller has locked the GrSurface in the | |
| 45 * cache and would like the pixel ref to unlock it in its destructor then transferCacheLock | |
| 46 * should be set to true. | |
| 47 */ | |
| 48 SkGrPixelRef(const SkImageInfo&, GrSurface*, bool transferCacheLock = false); | |
| 49 virtual ~SkGrPixelRef(); | |
| 50 | |
| 51 // override from SkPixelRef | |
| 52 virtual GrTexture* getTexture() SK_OVERRIDE; | |
| 53 | |
| 54 SK_DECLARE_UNFLATTENABLE_OBJECT() | |
| 55 | |
| 56 protected: | |
| 57 // overrides from SkPixelRef | |
| 58 virtual bool onReadPixels(SkBitmap* dst, const SkIRect* subset) SK_OVERRIDE; | |
| 59 virtual SkPixelRef* deepCopy(SkBitmap::Config dstConfig, const SkIRect* subset) SK_OVERRIDE; | |
| 60 | |
| 61 private: | |
| 62 GrSurface* fSurface; | |
| 63 bool fUnlock; // if true the pixel ref owns a texture cache lock on fSurface | |
| 64 | |
| 65 typedef SkROLockPixelsPixelRef INHERITED; | |
| 66 }; | |
| 67 | |
| 68 #endif |
