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 <SkRefCnt.h>
20 
21 #include "CopyRequest.h"
22 #include "Matrix.h"
23 #include "Rect.h"
24 #include "renderthread/RenderThread.h"
25 
26 class SkBitmap;
27 class SkImage;
28 struct SkRect;
29 
30 namespace android {
31 class Bitmap;
32 class GraphicBuffer;
33 class Surface;
34 namespace uirenderer {
35 
36 class DeferredLayerUpdater;
37 class Layer;
38 
39 class Readback {
40 public:
Readback(renderthread::RenderThread & thread)41     explicit Readback(renderthread::RenderThread& thread) : mRenderThread(thread) {}
42     /**
43      * Copies the surface's most recently queued buffer into the provided bitmap.
44      */
45     void copySurfaceInto(ANativeWindow* window, const std::shared_ptr<CopyRequest>& request);
46 
47     CopyResult copyHWBitmapInto(Bitmap* hwBitmap, SkBitmap* bitmap);
48     CopyResult copyImageInto(const sk_sp<SkImage>& image, SkBitmap* bitmap);
49 
50     CopyResult copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap);
51 
52 private:
53     CopyResult copyImageInto(const sk_sp<SkImage>& image, const Rect& srcRect, SkBitmap* bitmap);
54 
55     bool copyLayerInto(Layer* layer, const SkRect* srcRect, const SkRect* dstRect,
56                        SkBitmap* bitmap);
57 
58     renderthread::RenderThread& mRenderThread;
59 };
60 
61 }  // namespace uirenderer
62 }  // namespace android
63