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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 #include "SkBitmap.h" |
13 | 13 |
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. | 19 * Use this allocator for bitmaps, so they can use ashmem when available. |
| 20 * Returns NULL if the ResourceCache has not been initialized with a Discard
ableFactory. |
20 */ | 21 */ |
21 static SkBitmap::Allocator* GetAllocator(); | 22 static SkBitmap::Allocator* GetAllocator(); |
22 | 23 |
23 /** | 24 /** |
24 * Search based on the src bitmap and inverse scales in X and Y. If found,
returns true and | 25 * Search based on the src bitmap and inverse scales in X and Y. If found,
returns true and |
25 * result will be set to the matching bitmap with its pixels already locked
. | 26 * result will be set to the matching bitmap with its pixels already locked
. |
26 */ | 27 */ |
27 static bool Find(const SkBitmap& src, SkScalar invScaleX, SkScalar invScaleY
, SkBitmap* result); | 28 static bool Find(const SkBitmap& src, SkScalar invScaleX, SkScalar invScaleY
, SkBitmap* result); |
28 | 29 |
29 /* | 30 /* |
30 * result must be marked isImmutable() | 31 * result must be marked isImmutable() |
31 */ | 32 */ |
32 static void Add(const SkBitmap& src, SkScalar invScaleX, SkScalar invScaleY, | 33 static void Add(const SkBitmap& src, SkScalar invScaleX, SkScalar invScaleY, |
33 const SkBitmap& result); | 34 const SkBitmap& result); |
34 | 35 |
35 /** | 36 /** |
36 * Search based on the bitmap's genID, width, height. If found, returns tru
e and | 37 * Search based on the bitmap's genID, width, height. If found, returns tru
e and |
37 * result will be set to the matching bitmap with its pixels already locked
. | 38 * result will be set to the matching bitmap with its pixels already locked
. |
38 */ | 39 */ |
39 static bool Find(uint32_t genID, int width, int height, SkBitmap* result); | 40 static bool Find(uint32_t genID, int width, int height, SkBitmap* result); |
40 | 41 |
41 /* | 42 /* |
42 * result must be marked isImmutable() | 43 * result must be marked isImmutable() |
43 */ | 44 */ |
44 static void Add(uint32_t genID, int width, int height, const SkBitmap& resul
t); | 45 static void Add(uint32_t genID, int width, int height, const SkBitmap& resul
t); |
45 }; | 46 }; |
46 | 47 |
47 class SkMipMapCache { | 48 class SkMipMapCache { |
48 public: | 49 public: |
49 static const SkMipMap* FindAndRef(const SkBitmap& src); | 50 static const SkMipMap* FindAndRef(const SkBitmap& src); |
50 static void Add(const SkBitmap& src, const SkMipMap* result); | 51 static void Add(const SkBitmap& src, const SkMipMap* result); |
51 }; | 52 }; |
52 | 53 |
53 #endif | 54 #endif |
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