RenderProxy.h revision 18f16e6fba74eda173e1e7c869e6e2e2acc073ff 
1/*
2 * Copyright (C) 2013 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#ifndef RENDERPROXY_H_
18#define RENDERPROXY_H_
19
20#include "RenderTask.h"
21
22#include <cutils/compiler.h>
23#include <EGL/egl.h>
24#include <SkBitmap.h>
25#include <utils/Condition.h>
26#include <utils/Functor.h>
27#include <utils/Mutex.h>
28#include <utils/Timers.h>
29#include <utils/StrongPointer.h>
30#include <utils/Vector.h>
31
32#include "DrawFrameTask.h"
33
34namespace android {
35namespace uirenderer {
36
37class DeferredLayerUpdater;
38class RenderNode;
39class DisplayListData;
40class Layer;
41class Rect;
42
43namespace renderthread {
44
45class CanvasContext;
46class ErrorChannel;
47class RenderThread;
48class RenderProxyBridge;
49
50/*
51 * RenderProxy is strictly single threaded. All methods must be invoked on the owning
52 * thread. It is important to note that RenderProxy may be deleted while it has
53 * tasks post()'d as a result. Therefore any RenderTask that is post()'d must not
54 * reference RenderProxy or any of its fields. The exception here is that postAndWait()
55 * references RenderProxy fields. This is safe as RenderProxy cannot
56 * be deleted if it is blocked inside a call.
57 */
58class ANDROID_API RenderProxy {
59public:
60    ANDROID_API RenderProxy(bool translucent, RenderNode* rootNode);
61    ANDROID_API virtual ~RenderProxy();
62
63    ANDROID_API void setFrameInterval(nsecs_t frameIntervalNanos);
64
65    ANDROID_API bool initialize(const sp<ANativeWindow>& window);
66    ANDROID_API void updateSurface(const sp<ANativeWindow>& window);
67    ANDROID_API void pauseSurface(const sp<ANativeWindow>& window);
68    ANDROID_API void setup(int width, int height);
69    ANDROID_API void syncAndDrawFrame(nsecs_t frameTimeNanos,
70            int dirtyLeft, int dirtyTop, int dirtyRight, int dirtyBottom);
71    ANDROID_API void destroyCanvasAndSurface();
72
73    ANDROID_API void invokeFunctor(Functor* functor, bool waitForCompletion);
74
75    ANDROID_API void runWithGlContext(RenderTask* task);
76
77    ANDROID_API DeferredLayerUpdater* createDisplayListLayer(int width, int height);
78    ANDROID_API DeferredLayerUpdater* createTextureLayer();
79    ANDROID_API bool copyLayerInto(DeferredLayerUpdater* layer, SkBitmap* bitmap);
80    ANDROID_API void destroyLayer(DeferredLayerUpdater* layer);
81
82    ANDROID_API void fence();
83
84private:
85    RenderThread& mRenderThread;
86    CanvasContext* mContext;
87
88    DrawFrameTask mDrawFrameTask;
89
90    Mutex mSyncMutex;
91    Condition mSyncCondition;
92
93    void destroyContext();
94
95    void post(RenderTask* task);
96    void* postAndWait(MethodInvokeRenderTask* task);
97
98    // Friend class to help with bridging
99    friend class RenderProxyBridge;
100};
101
102} /* namespace renderthread */
103} /* namespace uirenderer */
104} /* namespace android */
105#endif /* RENDERPROXY_H_ */
106