2 * Copyright 2013 The Android Open Source Project
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
8 #ifndef SkXfermodeImageFilter_DEFINED
9 #define SkXfermodeImageFilter_DEFINED
11 #include "SkImageFilter.h"
16 class SK_API SkXfermodeImageFilter : public SkImageFilter {
18 * This filter takes an xfermode, and uses it to composite the foreground
19 * over the background. If foreground or background is NULL, the input
20 * bitmap (src) is used instead.
24 SkXfermodeImageFilter(SkXfermode* mode, SkImageFilter* background,
25 SkImageFilter* foreground = NULL, const CropRect* cropRect = NULL);
27 virtual ~SkXfermodeImageFilter();
29 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkXfermodeImageFilter)
31 virtual bool onFilterImage(Proxy* proxy,
35 SkIPoint* offset) SK_OVERRIDE;
37 virtual bool canFilterImageGPU() const SK_OVERRIDE { return !cropRectIsSet(); }
38 virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMatrix& ctm,
39 SkBitmap* result, SkIPoint* offset) SK_OVERRIDE;
43 explicit SkXfermodeImageFilter(SkFlattenableReadBuffer& buffer);
44 virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
48 typedef SkImageFilter INHERITED;