skia2/modules/sksg/include/SkSGMaskEffect.h
Florin Malita 3b526b05d6 "Modularize" SkSG
* relocate all SkSG-related files under modules/sksg/
* fix various tidbits to make non-sksg builds possible
* drop obsolete SampleSGInval.cpp

Change-Id: I54e6c5bb1a09f45030fa8d607b3eb3f7cba78957
Reviewed-on: https://skia-review.googlesource.com/130025
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Klein <mtklein@google.com>
2018-05-25 17:11:52 +00:00

52 lines
1.1 KiB
C++

/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkSGMaskEffect_DEFINED
#define SkSGMaskEffect_DEFINED
#include "SkSGEffectNode.h"
namespace sksg {
/**
* Concrete Effect node, applying a mask to its descendants.
*
*/
class MaskEffect final : public EffectNode {
public:
enum class Mode {
kNormal,
kInvert
};
static sk_sp<MaskEffect> Make(sk_sp<RenderNode> child, sk_sp<RenderNode> mask,
Mode mode = Mode::kNormal) {
return (child && mask)
? sk_sp<MaskEffect>(new MaskEffect(std::move(child), std::move(mask), mode))
: nullptr;
}
~MaskEffect() override;
protected:
MaskEffect(sk_sp<RenderNode>, sk_sp<RenderNode> mask, Mode);
void onRender(SkCanvas*) const override;
SkRect onRevalidate(InvalidationController*, const SkMatrix&) override;
private:
const sk_sp<RenderNode> fMaskNode;
const Mode fMaskMode;
typedef EffectNode INHERITED;
};
} // namespace sksg
#endif // SkSGMaskEffect_DEFINED