SkMagnifierImageFilter.h revision 4e16bb2a322f2bd16cb1afd2f78c27e420a4b9db 
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
9#ifndef SkMagnifierImageFilter_DEFINED
10#define SkMagnifierImageFilter_DEFINED
11
12#include "SkRect.h"
13#include "SkImageFilter.h"
14
15class SK_API SkMagnifierImageFilter : public SkImageFilter {
16public:
17    SkMagnifierImageFilter(SkRect srcRect, SkScalar inset);
18
19#if SK_SUPPORT_GPU
20    virtual bool asNewEffect(GrEffectRef** effect, GrTexture* texture, const SkIPoint& offset) const SK_OVERRIDE;
21#endif
22
23    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMagnifierImageFilter)
24
25protected:
26    explicit SkMagnifierImageFilter(SkFlattenableReadBuffer& buffer);
27    virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
28
29    virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
30                               SkBitmap* result, SkIPoint* offset) SK_OVERRIDE;
31
32private:
33    SkRect fSrcRect;
34    SkScalar fInset;
35    typedef SkImageFilter INHERITED;
36};
37
38#endif
39