SkDeviceImageFilterProxy.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 SkDeviceImageFilterProxy_DEFINED
9#define SkDeviceImageFilterProxy_DEFINED
10
11#include "SkImageFilter.h"
12
13class SkDeviceImageFilterProxy : public SkImageFilter::Proxy {
14public:
15    SkDeviceImageFilterProxy(SkBaseDevice* device) : fDevice(device) {}
16
17    virtual SkBaseDevice* createDevice(int w, int h) SK_OVERRIDE {
18        return fDevice->createCompatibleDevice(SkBitmap::kARGB_8888_Config,
19                                               w, h, false);
20    }
21    virtual bool canHandleImageFilter(const SkImageFilter* filter) SK_OVERRIDE {
22        return fDevice->canHandleImageFilter(filter);
23    }
24    virtual bool filterImage(const SkImageFilter* filter, const SkBitmap& src,
25                             const SkMatrix& ctm,
26                             SkBitmap* result, SkIPoint* offset) SK_OVERRIDE {
27        return fDevice->filterImage(filter, src, ctm, result, offset);
28    }
29
30private:
31    SkBaseDevice* fDevice;
32};
33
34#endif
35