OSDN Git Service

SurfaceTexture: inherit from ConsumerBase (try 2)
[android-x86/frameworks-native.git] / include / gui / ISurfaceComposer.h
1 /*
2  * Copyright (C) 2006 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_GUI_ISURFACE_COMPOSER_H
18 #define ANDROID_GUI_ISURFACE_COMPOSER_H
19
20 #include <stdint.h>
21 #include <sys/types.h>
22
23 #include <utils/RefBase.h>
24 #include <utils/Errors.h>
25
26 #include <binder/IInterface.h>
27
28 #include <ui/PixelFormat.h>
29
30 #include <gui/IGraphicBufferAlloc.h>
31 #include <gui/ISurfaceComposerClient.h>
32
33 namespace android {
34 // ----------------------------------------------------------------------------
35
36 class ComposerState;
37 class DisplayState;
38 class DisplayInfo;
39 class IDisplayEventConnection;
40 class IMemoryHeap;
41
42 class ISurfaceComposer: public IInterface {
43 public:
44     DECLARE_META_INTERFACE(SurfaceComposer);
45
46     // flags for setTransactionState()
47     enum {
48         eSynchronous = 0x01,
49     };
50
51     enum {
52         eDisplayIdMain = 0,
53         eDisplayIdHdmi = 1
54     };
55
56     /* create connection with surface flinger, requires
57      * ACCESS_SURFACE_FLINGER permission
58      */
59     virtual sp<ISurfaceComposerClient> createConnection() = 0;
60
61     /* create a graphic buffer allocator
62      */
63     virtual sp<IGraphicBufferAlloc> createGraphicBufferAlloc() = 0;
64
65     /* return an IDisplayEventConnection */
66     virtual sp<IDisplayEventConnection> createDisplayEventConnection() = 0;
67
68     /* create a display with given id.
69      * requires ACCESS_SURFACE_FLINGER permission.
70      */
71     virtual sp<IBinder> createDisplay() = 0;
72
73     /* get the token for the existing default displays. possible values
74      * for id are eDisplayIdMain and eDisplayIdHdmi.
75      */
76     virtual sp<IBinder> getBuiltInDisplay(int32_t id) = 0;
77
78     /* open/close transactions. requires ACCESS_SURFACE_FLINGER permission */
79     virtual void setTransactionState(const Vector<ComposerState>& state,
80             const Vector<DisplayState>& displays, uint32_t flags) = 0;
81
82     /* signal that we're done booting.
83      * Requires ACCESS_SURFACE_FLINGER permission
84      */
85     virtual void bootFinished() = 0;
86
87     /* verify that an ISurfaceTexture was created by SurfaceFlinger.
88      */
89     virtual bool authenticateSurfaceTexture(
90             const sp<ISurfaceTexture>& surface) const = 0;
91
92     /* Capture the specified screen. requires READ_FRAME_BUFFER permission
93      * This function will fail if there is a secure window on screen.
94      */
95     virtual status_t captureScreen(DisplayID dpy, sp<IMemoryHeap>* heap,
96             uint32_t* width, uint32_t* height, PixelFormat* format,
97             uint32_t reqWidth, uint32_t reqHeight, uint32_t minLayerZ,
98             uint32_t maxLayerZ) = 0;
99
100
101     /* triggers screen off and waits for it to complete */
102     virtual void blank() = 0;
103
104     /* triggers screen on and waits for it to complete */
105     virtual void unblank() = 0;
106
107     /* returns information about a physical screen. This is intended to be
108      * used by low-level native tests */
109     virtual status_t getDisplayInfo(DisplayID dpy, DisplayInfo* info) = 0;
110
111     /* connects to an external display */
112     virtual void connectDisplay(const sp<ISurfaceTexture> display) = 0;
113 };
114
115 // ----------------------------------------------------------------------------
116
117 class BnSurfaceComposer: public BnInterface<ISurfaceComposer> {
118 public:
119     enum {
120         // Note: BOOT_FINISHED must remain this value, it is called from
121         // Java by ActivityManagerService.
122         BOOT_FINISHED = IBinder::FIRST_CALL_TRANSACTION,
123         CREATE_CONNECTION,
124         CREATE_GRAPHIC_BUFFER_ALLOC,
125         CREATE_DISPLAY_EVENT_CONNECTION,
126         CREATE_DISPLAY,
127         GET_BUILT_IN_DISPLAY,
128         SET_TRANSACTION_STATE,
129         AUTHENTICATE_SURFACE,
130         CAPTURE_SCREEN,
131         BLANK,
132         UNBLANK,
133         GET_DISPLAY_INFO,
134         CONNECT_DISPLAY,
135     };
136
137     virtual status_t onTransact(uint32_t code, const Parcel& data,
138             Parcel* reply, uint32_t flags = 0);
139 };
140
141 // ----------------------------------------------------------------------------
142
143 }; // namespace android
144
145 #endif // ANDROID_GUI_ISURFACE_COMPOSER_H