SkBlurImageFilter.h revision f1369ce607adf55ffffe58fb93893bafb6ff6ebe 
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
9#ifndef SkBlurImageFilter_DEFINED
10#define SkBlurImageFilter_DEFINED
11
12#include "SkSingleInputImageFilter.h"
13
14class SK_API SkBlurImageFilter : public SkSingleInputImageFilter {
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 GrTexture* onFilterImageGPU(GrTexture* src, const SkRect& rect) SK_OVERRIDE;
29
30private:
31    SkSize   fSigma;
32    typedef SkSingleInputImageFilter INHERITED;
33};
34
35#endif
36
37