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 SkMergeImageFilter_DEFINED
9 #define SkMergeImageFilter_DEFINED
10 
11 #include "SkImageFilter.h"
12 
13 class SK_API SkMergeImageFilter : public SkImageFilter {
14 public:
15     static sk_sp<SkImageFilter> Make(sk_sp<SkImageFilter>* const filters, int count,
16                                      const CropRect* cropRect = nullptr);
17 
18     static sk_sp<SkImageFilter> Make(sk_sp<SkImageFilter> first, sk_sp<SkImageFilter> second,
19                                      const CropRect* cropRect = nullptr) {
20         sk_sp<SkImageFilter> array[] = {
21             std::move(first),
22             std::move(second),
23         };
24         return Make(array, 2, cropRect);
25     }
26 
27     SK_TO_STRING_OVERRIDE()
28     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMergeImageFilter)
29 
30 protected:
31     void flatten(SkWriteBuffer&) const override;
32     sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&,
33                                         SkIPoint* offset) const override;
34     sk_sp<SkImageFilter> onMakeColorSpace(SkColorSpaceXformer*) const override;
35     bool onCanHandleComplexCTM() const override { return true; }
36 
37 private:
38     SkMergeImageFilter(sk_sp<SkImageFilter>* const filters, int count, const CropRect* cropRect);
39 
40     typedef SkImageFilter INHERITED;
41 };
42 
43 #endif
44