1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/core/SkMipMap.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,43 @@
1.4 +/*
1.5 + * Copyright 2013 Google Inc.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license that can be
1.8 + * found in the LICENSE file.
1.9 + */
1.10 +
1.11 +#ifndef SkMipMap_DEFINED
1.12 +#define SkMipMap_DEFINED
1.13 +
1.14 +#include "SkRefCnt.h"
1.15 +#include "SkScalar.h"
1.16 +
1.17 +class SkBitmap;
1.18 +
1.19 +class SkMipMap : public SkRefCnt {
1.20 +public:
1.21 + static SkMipMap* Build(const SkBitmap& src);
1.22 +
1.23 + struct Level {
1.24 + void* fPixels;
1.25 + uint32_t fRowBytes;
1.26 + uint32_t fWidth, fHeight;
1.27 + float fScale; // < 1.0
1.28 + };
1.29 +
1.30 + bool extractLevel(SkScalar scale, Level*) const;
1.31 +
1.32 + size_t getSize() const { return fSize; }
1.33 +
1.34 +private:
1.35 + size_t fSize;
1.36 + Level* fLevels;
1.37 + int fCount;
1.38 +
1.39 + // we take ownership of levels, and will free it with sk_free()
1.40 + SkMipMap(Level* levels, int count, size_t size);
1.41 + virtual ~SkMipMap();
1.42 +
1.43 + static Level* AllocLevels(int levelCount, size_t pixelSize);
1.44 +};
1.45 +
1.46 +#endif
