skia2/include/effects/SkImageSource.h
Xianzhu Wang cb4d587666 Fix SkImageSource::filterBounds()
Previously SkImageSource::filterBounds() uses the default
SkImageFilter::onFilterNodeBounds() which returns the input rect.

Now override onFilterNodeBounds() in SkImageSource to return src
or dst rect (with transform applied).

Change-Id: I6681e1ba97affb09ef1ca5bc03b3d0f66c10f149
Reviewed-on: https://skia-review.googlesource.com/46741
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Mike Reed <reed@google.com>
2017-09-15 17:15:54 +00:00

51 lines
1.5 KiB
C++

/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkImageSource_DEFINED
#define SkImageSource_DEFINED
#include "SkImage.h"
#include "SkImageFilter.h"
class SK_API SkImageSource : public SkImageFilter {
public:
static sk_sp<SkImageFilter> Make(sk_sp<SkImage> image);
static sk_sp<SkImageFilter> Make(sk_sp<SkImage> image,
const SkRect& srcRect,
const SkRect& dstRect,
SkFilterQuality filterQuality);
SkRect computeFastBounds(const SkRect& src) const override;
SK_TO_STRING_OVERRIDE()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkImageSource)
protected:
void flatten(SkWriteBuffer&) const override;
sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&,
SkIPoint* offset) const override;
sk_sp<SkImageFilter> onMakeColorSpace(SkColorSpaceXformer*) const override;
SkIRect onFilterNodeBounds(const SkIRect&, const SkMatrix&, MapDirection) const override;
private:
explicit SkImageSource(sk_sp<SkImage>);
SkImageSource(sk_sp<SkImage>,
const SkRect& srcRect,
const SkRect& dstRect,
SkFilterQuality);
sk_sp<SkImage> fImage;
SkRect fSrcRect, fDstRect;
SkFilterQuality fFilterQuality;
typedef SkImageFilter INHERITED;
};
#endif