SkBitmapSource.h revision ae761f7545d8ebf181d220169afac2056b057b8c 
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    explicit SkBitmapSource(const SkBitmap& bitmap);
17    SkBitmapSource(const SkBitmap& bitmap, const SkRect& srcRect, const SkRect& dstRect);
18    virtual void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE;
19
20    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBitmapSource)
21
22protected:
23    explicit SkBitmapSource(SkReadBuffer& buffer);
24    virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
25    virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
26                               SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE;
27    virtual bool onFilterBounds(const SkIRect& src, const SkMatrix& ctm, SkIRect* dst) const SK_OVERRIDE;
28
29private:
30    SkBitmap fBitmap;
31    SkRect   fSrcRect, fDstRect;
32    typedef SkImageFilter INHERITED;
33};
34
35#endif
36