flutter_flutter/flow/layers/shader_mask_layer.h
Jim Graham 85953615eb
Conditionally use offscreen root surface only when needed
Currently helps primarily on iOS when no BackdropFilter is present by lowering energy usage
2019-12-11 15:10:55 -08:00

35 lines
918 B
C++

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_FLOW_LAYERS_SHADER_MASK_LAYER_H_
#define FLUTTER_FLOW_LAYERS_SHADER_MASK_LAYER_H_
#include "flutter/flow/layers/container_layer.h"
#include "third_party/skia/include/core/SkShader.h"
namespace flutter {
class ShaderMaskLayer : public ContainerLayer {
public:
ShaderMaskLayer(sk_sp<SkShader> shader,
const SkRect& mask_rect,
SkBlendMode blend_mode);
void Preroll(PrerollContext* context, const SkMatrix& matrix) override;
void Paint(PaintContext& context) const override;
private:
sk_sp<SkShader> shader_;
SkRect mask_rect_;
SkBlendMode blend_mode_;
FML_DISALLOW_COPY_AND_ASSIGN(ShaderMaskLayer);
};
} // namespace flutter
#endif // FLUTTER_FLOW_LAYERS_SHADER_MASK_LAYER_H_