SkBlurImageFilter.h revision 7b320703d47ff2b242ae74faba5e4b0af3560d71 
1/*
2 * Copyright 2011 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 SkBlurImageFilter_DEFINED
9#define SkBlurImageFilter_DEFINED
10
11#include "SkImageFilter.h"
12#include "SkSize.h"
13
14class SK_API SkBlurImageFilter : public SkImageFilter {
15public:
16    SkBlurImageFilter(SkScalar sigmaX, SkScalar sigmaY, SkImageFilter* input = NULL);
17
18    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBlurImageFilter)
19
20protected:
21    explicit SkBlurImageFilter(SkFlattenableReadBuffer& buffer);
22    virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
23
24    virtual bool onFilterImage(Proxy*, const SkBitmap& src, const SkMatrix&,
25                               SkBitmap* result, SkIPoint* offset) SK_OVERRIDE;
26
27    bool canFilterImageGPU() const SK_OVERRIDE { return true; }
28    virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, SkBitmap* result,
29                                SkIPoint* offset) SK_OVERRIDE;
30
31private:
32    SkSize   fSigma;
33    typedef SkImageFilter INHERITED;
34};
35
36#endif
37