1 /*
2  * Copyright 2014 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 SkMaskCache_DEFINED
9 #define SkMaskCache_DEFINED
10 
11 #include "include/core/SkBlurTypes.h"
12 #include "include/core/SkRRect.h"
13 #include "include/core/SkRect.h"
14 #include "src/core/SkCachedData.h"
15 #include "src/core/SkMask.h"
16 #include "src/core/SkResourceCache.h"
17 
18 class SkMaskCache {
19 public:
20     /**
21      * On success, return a ref to the SkCachedData that holds the pixels, and have mask
22      * already point to that memory.
23      *
24      * On failure, return nullptr.
25      */
26     static SkCachedData* FindAndRef(SkScalar sigma, SkBlurStyle style,
27                                     const SkRRect& rrect, SkMask* mask,
28                                     SkResourceCache* localCache = nullptr);
29     static SkCachedData* FindAndRef(SkScalar sigma, SkBlurStyle style,
30                                     const SkRect rects[], int count, SkMask* mask,
31                                     SkResourceCache* localCache = nullptr);
32 
33     /**
34      * Add a mask and its pixel-data to the cache.
35      */
36     static void Add(SkScalar sigma, SkBlurStyle style,
37                     const SkRRect& rrect, const SkMask& mask, SkCachedData* data,
38                     SkResourceCache* localCache = nullptr);
39     static void Add(SkScalar sigma, SkBlurStyle style,
40                     const SkRect rects[], int count, const SkMask& mask, SkCachedData* data,
41                     SkResourceCache* localCache = nullptr);
42 };
43 
44 #endif
45