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 virtual ~SkXfermodeImageFilter();
26 static SkXfermodeImageFilter* Create(SkXfermode* mode, SkImageFilter* background,
27 SkImageFilter* foreground = NULL,
28 const CropRect* cropRect = NULL) {
29 return SkNEW_ARGS(SkXfermodeImageFilter, (mode, background, foreground, cropRect));
32 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkXfermodeImageFilter)
34 virtual bool onFilterImage(Proxy* proxy,
38 SkIPoint* offset) const SK_OVERRIDE;
40 virtual bool canFilterImageGPU() const SK_OVERRIDE;
41 virtual bool filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx,
42 SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE;
46 explicit SkXfermodeImageFilter(SkReadBuffer& buffer);
47 virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
49 #ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS
52 SkXfermodeImageFilter(SkXfermode* mode, SkImageFilter* background,
53 SkImageFilter* foreground = NULL, const CropRect* cropRect = NULL);
57 typedef SkImageFilter INHERITED;