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 INCLUDED_FROM_FRAMEBUFFER_NATIVE_WINDOW_CPP
18#warning "FramebufferNativeWindow is deprecated"
19#endif
20
21#ifndef ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H
22#define ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H
23
24#include <stdint.h>
25#include <sys/types.h>
26
27#include <EGL/egl.h>
28
29#include <utils/threads.h>
30#include <utils/String8.h>
31
32#include <ui/ANativeObjectBase.h>
33#include <ui/Rect.h>
34
35#define MIN_NUM_FRAME_BUFFERS  2
36#define MAX_NUM_FRAME_BUFFERS  3
37
38extern "C" EGLNativeWindowType android_createDisplaySurface(void);
39
40// ---------------------------------------------------------------------------
41namespace android {
42// ---------------------------------------------------------------------------
43
44class Surface;
45class NativeBuffer;
46
47// ---------------------------------------------------------------------------
48
49class FramebufferNativeWindow
50    : public ANativeObjectBase<
51        ANativeWindow,
52        FramebufferNativeWindow,
53        LightRefBase<FramebufferNativeWindow> >
54{
55public:
56    FramebufferNativeWindow();
57
58    framebuffer_device_t const * getDevice() const { return fbDev; }
59
60    bool isUpdateOnDemand() const { return mUpdateOnDemand; }
61    status_t setUpdateRectangle(const Rect& updateRect);
62    status_t compositionComplete();
63
64    void dump(String8& result);
65
66    // for debugging only
67    int getCurrentBufferIndex() const;
68
69private:
70    friend class LightRefBase<FramebufferNativeWindow>;
71    ~FramebufferNativeWindow(); // this class cannot be overloaded
72    static int setSwapInterval(ANativeWindow* window, int interval);
73    static int dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer, int* fenceFd);
74    static int queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd);
75    static int query(const ANativeWindow* window, int what, int* value);
76    static int perform(ANativeWindow* window, int operation, ...);
77
78    static int dequeueBuffer_DEPRECATED(ANativeWindow* window, ANativeWindowBuffer** buffer);
79    static int queueBuffer_DEPRECATED(ANativeWindow* window, ANativeWindowBuffer* buffer);
80    static int lockBuffer_DEPRECATED(ANativeWindow* window, ANativeWindowBuffer* buffer);
81
82    framebuffer_device_t* fbDev;
83    alloc_device_t* grDev;
84
85    sp<NativeBuffer> buffers[MAX_NUM_FRAME_BUFFERS];
86    sp<NativeBuffer> front;
87
88    mutable Mutex mutex;
89    Condition mCondition;
90    int32_t mNumBuffers;
91    int32_t mNumFreeBuffers;
92    int32_t mBufferHead;
93    int32_t mCurrentBufferIndex;
94    bool mUpdateOnDemand;
95};
96
97// ---------------------------------------------------------------------------
98}; // namespace android
99// ---------------------------------------------------------------------------
100
101#endif // ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H
102
103