The Tor Browser: gfx/skia/trunk/src/core/SkMipMap.h@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /*

     2  * Copyright 2013 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  */

     8 #ifndef SkMipMap_DEFINED

     9 #define SkMipMap_DEFINED

    11 #include "SkRefCnt.h"

    12 #include "SkScalar.h"

    14 class SkBitmap;

    16 class SkMipMap : public SkRefCnt {

    17 public:

    18     static SkMipMap* Build(const SkBitmap& src);

    20     struct Level {

    21         void*       fPixels;

    22         uint32_t    fRowBytes;

    23         uint32_t    fWidth, fHeight;

    24         float       fScale; // < 1.0

    25     };

    27     bool extractLevel(SkScalar scale, Level*) const;

    29     size_t getSize() const { return fSize; }

    31 private:

    32     size_t  fSize;

    33     Level*  fLevels;

    34     int     fCount;

    36     // we take ownership of levels, and will free it with sk_free()

    37     SkMipMap(Level* levels, int count, size_t size);

    38     virtual ~SkMipMap();

    40     static Level* AllocLevels(int levelCount, size_t pixelSize);

    41 };

    43 #endif

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