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1 | |
2 /* | 1 /* |
3 * Copyright 2010 Google Inc. | 2 * Copyright 2010 Google Inc. |
4 * | 3 * |
5 * 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 |
6 * found in the LICENSE file. | 5 * found in the LICENSE file. |
7 */ | 6 */ |
8 | 7 |
9 | |
10 | |
11 #ifndef SkGrPixelRef_DEFINED | 8 #ifndef SkGrPixelRef_DEFINED |
12 #define SkGrPixelRef_DEFINED | 9 #define SkGrPixelRef_DEFINED |
13 | 10 |
14 #include "SkBitmap.h" | 11 #include "SkBitmap.h" |
15 #include "SkPixelRef.h" | 12 #include "SkPixelRef.h" |
16 #include "GrTexture.h" | 13 #include "GrTexture.h" |
17 #include "GrRenderTarget.h" | 14 #include "GrRenderTarget.h" |
18 | 15 |
19 | 16 |
20 /** | 17 /** |
21 * Common baseclass that implements onLockPixels() by calling onReadPixels(). | 18 * Common baseclass that implements onLockPixels() by calling onReadPixels(). |
22 * Since it has a copy, it always returns false for onLockPixelsAreWritable(). | 19 * Since it has a copy, it always returns false for onLockPixelsAreWritable(). |
23 */ | 20 */ |
24 class SK_API SkROLockPixelsPixelRef : public SkPixelRef { | 21 class SK_API SkROLockPixelsPixelRef : public SkPixelRef { |
25 public: | 22 public: |
26 SkROLockPixelsPixelRef(); | 23 SkROLockPixelsPixelRef(const SkImageInfo&); |
27 virtual ~SkROLockPixelsPixelRef(); | 24 virtual ~SkROLockPixelsPixelRef(); |
28 | 25 |
29 protected: | 26 protected: |
30 // override from SkPixelRef | 27 // override from SkPixelRef |
31 virtual void* onLockPixels(SkColorTable** ptr); | 28 virtual void* onLockPixels(SkColorTable** ptr); |
32 virtual void onUnlockPixels(); | 29 virtual void onUnlockPixels(); |
33 virtual bool onLockPixelsAreWritable() const; // return false; | 30 virtual bool onLockPixelsAreWritable() const; // return false; |
34 | 31 |
35 private: | 32 private: |
36 SkBitmap fBitmap; | 33 SkBitmap fBitmap; |
37 typedef SkPixelRef INHERITED; | 34 typedef SkPixelRef INHERITED; |
38 }; | 35 }; |
39 | 36 |
40 /** | 37 /** |
41 * PixelRef that wraps a GrSurface | 38 * PixelRef that wraps a GrSurface |
42 */ | 39 */ |
43 class SK_API SkGrPixelRef : public SkROLockPixelsPixelRef { | 40 class SK_API SkGrPixelRef : public SkROLockPixelsPixelRef { |
44 public: | 41 public: |
45 /** | 42 /** |
46 * Constructs a pixel ref around a GrSurface. If the caller has locked the G
rSurface in the | 43 * Constructs a pixel ref around a GrSurface. If the caller has locked the G
rSurface in the |
47 * cache and would like the pixel ref to unlock it in its destructor then tr
ansferCacheLock | 44 * cache and would like the pixel ref to unlock it in its destructor then tr
ansferCacheLock |
48 * should be set to true. | 45 * should be set to true. |
49 */ | 46 */ |
50 SkGrPixelRef(GrSurface*, bool transferCacheLock = false); | |
51 SkGrPixelRef(const SkImageInfo&, GrSurface*, bool transferCacheLock = false)
; | 47 SkGrPixelRef(const SkImageInfo&, GrSurface*, bool transferCacheLock = false)
; |
52 virtual ~SkGrPixelRef(); | 48 virtual ~SkGrPixelRef(); |
53 | 49 |
54 // override from SkPixelRef | 50 // override from SkPixelRef |
55 virtual GrTexture* getTexture() SK_OVERRIDE; | 51 virtual GrTexture* getTexture() SK_OVERRIDE; |
56 | 52 |
57 SK_DECLARE_UNFLATTENABLE_OBJECT() | 53 SK_DECLARE_UNFLATTENABLE_OBJECT() |
58 | 54 |
59 protected: | 55 protected: |
60 // overrides from SkPixelRef | 56 // overrides from SkPixelRef |
61 virtual bool onReadPixels(SkBitmap* dst, const SkIRect* subset) SK_OVERRIDE; | 57 virtual bool onReadPixels(SkBitmap* dst, const SkIRect* subset) SK_OVERRIDE; |
62 virtual SkPixelRef* deepCopy(SkBitmap::Config dstConfig, const SkIRect* subs
et) SK_OVERRIDE; | 58 virtual SkPixelRef* deepCopy(SkBitmap::Config dstConfig, const SkIRect* subs
et) SK_OVERRIDE; |
63 | 59 |
64 private: | 60 private: |
65 GrSurface* fSurface; | 61 GrSurface* fSurface; |
66 bool fUnlock; // if true the pixel ref owns a texture cache lock on
fSurface | 62 bool fUnlock; // if true the pixel ref owns a texture cache lock on
fSurface |
67 | 63 |
68 typedef SkROLockPixelsPixelRef INHERITED; | 64 typedef SkROLockPixelsPixelRef INHERITED; |
69 }; | 65 }; |
70 | 66 |
71 #endif | 67 #endif |
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