1/*
2 * Copyright 2012 The Android Open Source Project
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 SkBitmapSource_DEFINED
9#define SkBitmapSource_DEFINED
10
11#include "SkImageFilter.h"
12#include "SkBitmap.h"
13
14class SK_API SkBitmapSource : public SkImageFilter {
15public:
16    static SkBitmapSource* Create(const SkBitmap& bitmap) {
17        return SkNEW_ARGS(SkBitmapSource, (bitmap));
18    }
19    static SkBitmapSource* Create(const SkBitmap& bitmap,
20                                  const SkRect& srcRect, const SkRect& dstRect,
21                                  SkFilterQuality filterQuality = kHigh_SkFilterQuality) {
22        return SkNEW_ARGS(SkBitmapSource, (bitmap, srcRect, dstRect, filterQuality));
23    }
24    void computeFastBounds(const SkRect& src, SkRect* dst) const override;
25
26    SK_TO_STRING_OVERRIDE()
27    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBitmapSource)
28
29protected:
30    explicit SkBitmapSource(const SkBitmap& bitmap);
31    SkBitmapSource(const SkBitmap& bitmap,
32                   const SkRect& srcRect, const SkRect& dstRect,
33                   SkFilterQuality filterQuality);
34    void flatten(SkWriteBuffer&) const override;
35
36    virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&,
37                               SkBitmap* result, SkIPoint* offset) const override;
38
39private:
40    SkBitmap fBitmap;
41    SkRect   fSrcRect, fDstRect;
42    SkFilterQuality fFilterQuality;
43
44    typedef SkImageFilter INHERITED;
45};
46
47#endif
48