LayerDrawable.h revision c4fbada76aa840105553b2c2bce2204e673d2983 
1/*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#pragma once
18
19#include "Layer.h"
20
21#include <SkCanvas.h>
22#include <SkDrawable.h>
23
24namespace android {
25namespace uirenderer {
26namespace skiapipeline {
27
28/*
29 * Draws a layer backed by an OpenGL texture into a SkCanvas.
30 */
31class LayerDrawable : public SkDrawable {
32 public:
33    explicit LayerDrawable(Layer* layer)
34            : mLayer(layer) {}
35
36    static bool DrawLayer(GrContext* context, SkCanvas* canvas, Layer* layer);
37 protected:
38     virtual SkRect onGetBounds() override {
39         return SkRect::MakeWH(mLayer->getWidth(), mLayer->getHeight());
40     }
41     virtual void onDraw(SkCanvas* canvas) override;
42
43private:
44    sp<Layer> mLayer;
45};
46
47}; // namespace skiapipeline
48}; // namespace uirenderer
49}; // namespace android
50