FramebufferSurface.h revision 3e87601170141229d661df93e2f59e1ced73474b 
1/*
2 * Copyright (C) 2007 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 ANDROID_SF_FRAMEBUFFER_SURFACE_H
18#define ANDROID_SF_FRAMEBUFFER_SURFACE_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include <EGL/egl.h>
24
25#include <gui/SurfaceTextureClient.h>
26
27#define NUM_FRAME_BUFFERS  2
28
29// ---------------------------------------------------------------------------
30namespace android {
31// ---------------------------------------------------------------------------
32
33class Rect;
34class String8;
35
36// ---------------------------------------------------------------------------
37
38class FramebufferSurface : public SurfaceTextureClient {
39public:
40    FramebufferSurface();
41
42    virtual void onFirstRef();
43
44    framebuffer_device_t const * getDevice() const { return fbDev; }
45
46    bool isUpdateOnDemand() const { return mUpdateOnDemand; }
47    status_t setUpdateRectangle(const Rect& updateRect);
48    status_t compositionComplete();
49
50    void dump(String8& result);
51
52private:
53    virtual ~FramebufferSurface(); // this class cannot be overloaded
54    virtual int query(int what, int* value) const;
55
56    framebuffer_device_t* fbDev;
57
58    sp<BufferQueue> mBufferQueue;
59    int mCurrentBufferIndex;
60    sp<GraphicBuffer> mBuffers[NUM_FRAME_BUFFERS];
61
62    mutable Mutex mLock;
63    bool mUpdateOnDemand;
64};
65
66// ---------------------------------------------------------------------------
67}; // namespace android
68// ---------------------------------------------------------------------------
69
70#endif // ANDROID_SF_FRAMEBUFFER_SURFACE_H
71
72