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    static SkImageFilter* Create(const SkRect& src, SkScalar inset, SkImageFilter* input = NULL);
18
19    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMagnifierImageFilter)
20
21protected:
22    SkMagnifierImageFilter(const SkRect& srcRect, SkScalar inset, SkImageFilter* input);
23#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING
24    explicit SkMagnifierImageFilter(SkReadBuffer& buffer);
25#endif
26    virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
27
28    virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&,
29                               SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE;
30#if SK_SUPPORT_GPU
31    virtual bool asFragmentProcessor(GrFragmentProcessor**, GrTexture*, const SkMatrix&,
32                                     const SkIRect& bounds) const SK_OVERRIDE;
33#endif
34
35private:
36    SkRect fSrcRect;
37    SkScalar fInset;
38    typedef SkImageFilter INHERITED;
39};
40
41#endif
42