FramebufferNativeWindow.h revision 0926f50664c739eaee60341f8e8c694dc9a4f3eb 
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_FRAMEBUFFER_NATIVE_WINDOW_H
18#define ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H
19
20#include <stdint.h>
21#include <sys/types.h>
22
23#include <EGL/egl.h>
24#include <EGL/android_natives.h>
25
26#include <utils/threads.h>
27#include <ui/Rect.h>
28
29#include <pixelflinger/pixelflinger.h>
30
31
32extern "C" EGLNativeWindowType android_createDisplaySurface(void);
33
34// ---------------------------------------------------------------------------
35namespace android {
36// ---------------------------------------------------------------------------
37
38class Surface;
39
40
41class NativeBuffer
42    : public EGLNativeBase<
43        android_native_buffer_t,
44        NativeBuffer,
45        LightRefBase<NativeBuffer>  >
46{
47public:
48    NativeBuffer(int w, int h, int f, int u) : BASE() {
49        android_native_buffer_t::width  = w;
50        android_native_buffer_t::height = h;
51        android_native_buffer_t::format = f;
52        android_native_buffer_t::usage  = u;
53        android_native_buffer_t::getHandle = getHandle;
54    }
55public:
56    buffer_handle_t handle;
57private:
58    friend class LightRefBase<NativeBuffer>;
59    ~NativeBuffer() { }; // this class cannot be overloaded
60    static int getHandle(android_native_buffer_t const * base, buffer_handle_t* handle) {
61        *handle = getSelf(base)->handle;
62        return 0;
63    }
64};
65
66// ---------------------------------------------------------------------------
67
68class FramebufferNativeWindow
69    : public EGLNativeBase<
70        android_native_window_t,
71        FramebufferNativeWindow,
72        LightRefBase<FramebufferNativeWindow> >
73{
74public:
75    FramebufferNativeWindow();
76
77    framebuffer_device_t const * getDevice() const { return fbDev; }
78
79    void setSwapRectangle(const Rect& dirty);
80
81private:
82    friend class LightRefBase<FramebufferNativeWindow>;
83    ~FramebufferNativeWindow(); // this class cannot be overloaded
84    static void connect(android_native_window_t* window);
85    static void disconnect(android_native_window_t* window);
86    static int setSwapInterval(android_native_window_t* window, int interval);
87    static int dequeueBuffer(android_native_window_t* window, android_native_buffer_t** buffer);
88    static int lockBuffer(android_native_window_t* window, android_native_buffer_t* buffer);
89    static int queueBuffer(android_native_window_t* window, android_native_buffer_t* buffer);
90
91    framebuffer_device_t* fbDev;
92    alloc_device_t* grDev;
93
94    sp<NativeBuffer> buffers[2];
95    sp<NativeBuffer> front;
96
97    Rect mDirty;
98
99    mutable Mutex mutex;
100    Condition mCondition;
101    int32_t mNumBuffers;
102    int32_t mNumFreeBuffers;
103    int32_t mBufferHead;
104};
105
106// ---------------------------------------------------------------------------
107}; // namespace android
108// ---------------------------------------------------------------------------
109
110#endif // ANDROID_FRAMEBUFFER_NATIVE_WINDOW_H
111
112