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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 SkBBHFactory_DEFINED | 8 #ifndef SkBBHFactory_DEFINED |
9 #define SkBBHFactory_DEFINED | 9 #define SkBBHFactory_DEFINED |
10 | 10 |
11 #include "SkSize.h" | |
12 #include "SkRect.h" | 11 #include "SkRect.h" |
13 | 12 |
14 class SkBBoxHierarchy; | 13 class SkBBoxHierarchy; |
15 | 14 |
16 class SK_API SkBBHFactory { | 15 class SK_API SkBBHFactory { |
17 public: | 16 public: |
18 /** | 17 /** |
19 * Allocate a new SkBBoxHierarchy. Return NULL on failure. | 18 * Allocate a new SkBBoxHierarchy. Return NULL on failure. |
20 */ | 19 */ |
21 virtual SkBBoxHierarchy* operator()(const SkRect& bounds) const = 0; | 20 virtual SkBBoxHierarchy* operator()(const SkRect& bounds) const = 0; |
22 virtual ~SkBBHFactory() {}; | 21 virtual ~SkBBHFactory() {}; |
23 }; | 22 }; |
24 | 23 |
25 class SK_API SkRTreeFactory : public SkBBHFactory { | 24 class SK_API SkRTreeFactory : public SkBBHFactory { |
26 public: | 25 public: |
27 SkBBoxHierarchy* operator()(const SkRect& bounds) const SK_OVERRIDE; | 26 SkBBoxHierarchy* operator()(const SkRect& bounds) const SK_OVERRIDE; |
28 private: | 27 private: |
29 typedef SkBBHFactory INHERITED; | 28 typedef SkBBHFactory INHERITED; |
30 }; | 29 }; |
31 | 30 |
32 // TODO(mtklein): delete entirely when Chromium's clean for TileGridInfo | |
33 class SK_API SkTileGridFactory { | |
34 public: | |
35 struct TileGridInfo { | |
36 /** Tile placement interval */ | |
37 SkISize fTileInterval; | |
38 | |
39 /** Pixel coverage overlap between adjacent tiles */ | |
40 SkISize fMargin; | |
41 | |
42 /** Offset added to device-space bounding box positions to convert | |
43 * them to tile-grid space. This can be used to adjust the "phase" | |
44 * of the tile grid to match probable query rectangles that will be | |
45 * used to search into the tile grid. As long as the offset is smaller | |
46 * or equal to the margin, there is no need to extend the domain of | |
47 * the tile grid to prevent data loss. | |
48 */ | |
49 SkIPoint fOffset; | |
50 }; | |
51 }; | |
52 | |
53 #endif | 31 #endif |
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