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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 SkBitmapCache_DEFINED | 8 #ifndef SkBitmapCache_DEFINED |
9 #define SkBitmapCache_DEFINED | 9 #define SkBitmapCache_DEFINED |
10 | 10 |
11 #include "SkScalar.h" | 11 #include "SkScalar.h" |
| 12 #include "SkBitmap.h" |
12 | 13 |
13 class SkBitmap; | |
14 class SkMipMap; | 14 class SkMipMap; |
15 | 15 |
16 class SkBitmapCache { | 16 class SkBitmapCache { |
17 public: | 17 public: |
18 /** | 18 /** |
| 19 * Use this allocator for bitmaps, so they can use ashmem when available. |
| 20 */ |
| 21 static SkBitmap::Allocator* GetAllocator(); |
| 22 |
| 23 /** |
19 * Search based on the src bitmap and inverse scales in X and Y. If found,
returns true and | 24 * Search based on the src bitmap and inverse scales in X and Y. If found,
returns true and |
20 * result will be set to the matching bitmap with its pixels already locked
. | 25 * result will be set to the matching bitmap with its pixels already locked
. |
21 */ | 26 */ |
22 static bool Find(const SkBitmap& src, SkScalar invScaleX, SkScalar invScaleY
, SkBitmap* result); | 27 static bool Find(const SkBitmap& src, SkScalar invScaleX, SkScalar invScaleY
, SkBitmap* result); |
| 28 |
| 29 /* |
| 30 * result must be marked isImmutable() |
| 31 */ |
23 static void Add(const SkBitmap& src, SkScalar invScaleX, SkScalar invScaleY, | 32 static void Add(const SkBitmap& src, SkScalar invScaleX, SkScalar invScaleY, |
24 const SkBitmap& result); | 33 const SkBitmap& result); |
25 | 34 |
26 /** | 35 /** |
27 * Search based on the bitmap's genID, width, height. If found, returns tru
e and | 36 * Search based on the bitmap's genID, width, height. If found, returns tru
e and |
28 * result will be set to the matching bitmap with its pixels already locked
. | 37 * result will be set to the matching bitmap with its pixels already locked
. |
29 */ | 38 */ |
30 static bool Find(uint32_t genID, int width, int height, SkBitmap* result); | 39 static bool Find(uint32_t genID, int width, int height, SkBitmap* result); |
| 40 |
| 41 /* |
| 42 * result must be marked isImmutable() |
| 43 */ |
31 static void Add(uint32_t genID, int width, int height, const SkBitmap& resul
t); | 44 static void Add(uint32_t genID, int width, int height, const SkBitmap& resul
t); |
32 }; | 45 }; |
33 | 46 |
34 class SkMipMapCache { | 47 class SkMipMapCache { |
35 public: | 48 public: |
36 static const SkMipMap* FindAndRef(const SkBitmap& src); | 49 static const SkMipMap* FindAndRef(const SkBitmap& src); |
37 static void Add(const SkBitmap& src, const SkMipMap* result); | 50 static void Add(const SkBitmap& src, const SkMipMap* result); |
38 }; | 51 }; |
39 | 52 |
40 #endif | 53 #endif |
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