gfx/skia/trunk/src/core/SkMipMap.h@6474c204b198 (annotated)
gfx/skia/trunk/src/core/SkMipMap.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* |
| michael@0 | 2 | * Copyright 2013 Google Inc. |
| michael@0 | 3 | * |
| michael@0 | 4 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 5 | * found in the LICENSE file. |
| michael@0 | 6 | */ |
| michael@0 | 7 | |
| michael@0 | 8 | #ifndef SkMipMap_DEFINED |
| michael@0 | 9 | #define SkMipMap_DEFINED |
| michael@0 | 10 | |
| michael@0 | 11 | #include "SkRefCnt.h" |
| michael@0 | 12 | #include "SkScalar.h" |
| michael@0 | 13 | |
| michael@0 | 14 | class SkBitmap; |
| michael@0 | 15 | |
| michael@0 | 16 | class SkMipMap : public SkRefCnt { |
| michael@0 | 17 | public: |
| michael@0 | 18 | static SkMipMap* Build(const SkBitmap& src); |
| michael@0 | 19 | |
| michael@0 | 20 | struct Level { |
| michael@0 | 21 | void* fPixels; |
| michael@0 | 22 | uint32_t fRowBytes; |
| michael@0 | 23 | uint32_t fWidth, fHeight; |
| michael@0 | 24 | float fScale; // < 1.0 |
| michael@0 | 25 | }; |
| michael@0 | 26 | |
| michael@0 | 27 | bool extractLevel(SkScalar scale, Level*) const; |
| michael@0 | 28 | |
| michael@0 | 29 | size_t getSize() const { return fSize; } |
| michael@0 | 30 | |
| michael@0 | 31 | private: |
| michael@0 | 32 | size_t fSize; |
| michael@0 | 33 | Level* fLevels; |
| michael@0 | 34 | int fCount; |
| michael@0 | 35 | |
| michael@0 | 36 | // we take ownership of levels, and will free it with sk_free() |
| michael@0 | 37 | SkMipMap(Level* levels, int count, size_t size); |
| michael@0 | 38 | virtual ~SkMipMap(); |
| michael@0 | 39 | |
| michael@0 | 40 | static Level* AllocLevels(int levelCount, size_t pixelSize); |
| michael@0 | 41 | }; |
| michael@0 | 42 | |
| michael@0 | 43 | #endif |
