2 * Copyright (C) 2006 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #ifndef ANDROID_GUI_ISURFACE_COMPOSER_H
18 #define ANDROID_GUI_ISURFACE_COMPOSER_H
21 #include <sys/types.h>
23 #include <utils/RefBase.h>
24 #include <utils/Errors.h>
26 #include <binder/IInterface.h>
28 #include <ui/PixelFormat.h>
30 #include <gui/IGraphicBufferAlloc.h>
31 #include <gui/ISurfaceComposerClient.h>
34 // ----------------------------------------------------------------------------
39 class IDisplayEventConnection;
42 class ISurfaceComposer: public IInterface {
44 DECLARE_META_INTERFACE(SurfaceComposer);
46 // flags for setTransactionState()
56 /* create connection with surface flinger, requires
57 * ACCESS_SURFACE_FLINGER permission
59 virtual sp<ISurfaceComposerClient> createConnection() = 0;
61 /* create a graphic buffer allocator
63 virtual sp<IGraphicBufferAlloc> createGraphicBufferAlloc() = 0;
65 /* return an IDisplayEventConnection */
66 virtual sp<IDisplayEventConnection> createDisplayEventConnection() = 0;
68 /* create a display with given id.
69 * requires ACCESS_SURFACE_FLINGER permission.
71 virtual sp<IBinder> createDisplay() = 0;
73 /* get the token for the existing default displays. possible values
74 * for id are eDisplayIdMain and eDisplayIdHdmi.
76 virtual sp<IBinder> getBuiltInDisplay(int32_t id) = 0;
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;
82 /* signal that we're done booting.
83 * Requires ACCESS_SURFACE_FLINGER permission
85 virtual void bootFinished() = 0;
87 /* verify that an ISurfaceTexture was created by SurfaceFlinger.
89 virtual bool authenticateSurfaceTexture(
90 const sp<ISurfaceTexture>& surface) const = 0;
92 /* Capture the specified screen. requires READ_FRAME_BUFFER permission
93 * This function will fail if there is a secure window on screen.
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;
101 /* triggers screen off and waits for it to complete */
102 virtual void blank() = 0;
104 /* triggers screen on and waits for it to complete */
105 virtual void unblank() = 0;
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;
111 /* connects to an external display */
112 virtual void connectDisplay(const sp<ISurfaceTexture> display) = 0;
115 // ----------------------------------------------------------------------------
117 class BnSurfaceComposer: public BnInterface<ISurfaceComposer> {
120 // Note: BOOT_FINISHED must remain this value, it is called from
121 // Java by ActivityManagerService.
122 BOOT_FINISHED = IBinder::FIRST_CALL_TRANSACTION,
124 CREATE_GRAPHIC_BUFFER_ALLOC,
125 CREATE_DISPLAY_EVENT_CONNECTION,
127 GET_BUILT_IN_DISPLAY,
128 SET_TRANSACTION_STATE,
129 AUTHENTICATE_SURFACE,
137 virtual status_t onTransact(uint32_t code, const Parcel& data,
138 Parcel* reply, uint32_t flags = 0);
141 // ----------------------------------------------------------------------------
143 }; // namespace android
145 #endif // ANDROID_GUI_ISURFACE_COMPOSER_H