skia2/include/effects/SkDisplacementMapEffect.h
Matt Sarett 6d72ed918d SkImageFilter::onMakeColorSpace() - more overrides
Fills out most of the simple implementations.
Improves 22 gms in gbr-8888.

Bug: skia:
Change-Id: I881ade140993568263de75be51aed240d2de8cc6
Reviewed-on: https://skia-review.googlesource.com/13126
Commit-Queue: Matt Sarett <msarett@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
2017-04-10 21:28:43 +00:00

63 lines
2.2 KiB
C++

/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkDisplacementMapEffect_DEFINED
#define SkDisplacementMapEffect_DEFINED
#include "SkImageFilter.h"
class SK_API SkDisplacementMapEffect : public SkImageFilter {
public:
enum ChannelSelectorType {
kUnknown_ChannelSelectorType,
kR_ChannelSelectorType,
kG_ChannelSelectorType,
kB_ChannelSelectorType,
kA_ChannelSelectorType
};
~SkDisplacementMapEffect() override;
static sk_sp<SkImageFilter> Make(ChannelSelectorType xChannelSelector,
ChannelSelectorType yChannelSelector,
SkScalar scale,
sk_sp<SkImageFilter> displacement,
sk_sp<SkImageFilter> color,
const CropRect* cropRect = nullptr);
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkDisplacementMapEffect)
SkRect computeFastBounds(const SkRect& src) const override;
virtual SkIRect onFilterBounds(const SkIRect& src, const SkMatrix&,
MapDirection) const override;
sk_sp<SkImageFilter> onMakeColorSpace(SkColorSpaceXformer*) const override;
SkIRect onFilterNodeBounds(const SkIRect&, const SkMatrix&, MapDirection) const override;
SK_TO_STRING_OVERRIDE()
protected:
sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&,
SkIPoint* offset) const override;
SkDisplacementMapEffect(ChannelSelectorType xChannelSelector,
ChannelSelectorType yChannelSelector,
SkScalar scale, sk_sp<SkImageFilter> inputs[2],
const CropRect* cropRect);
void flatten(SkWriteBuffer&) const override;
private:
ChannelSelectorType fXChannelSelector;
ChannelSelectorType fYChannelSelector;
SkScalar fScale;
typedef SkImageFilter INHERITED;
const SkImageFilter* getDisplacementInput() const { return getInput(0); }
const SkImageFilter* getColorInput() const { return getInput(1); }
};
#endif