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()
57 /* create connection with surface flinger, requires
58 * ACCESS_SURFACE_FLINGER permission
60 virtual sp<ISurfaceComposerClient> createConnection() = 0;
62 /* create a graphic buffer allocator
64 virtual sp<IGraphicBufferAlloc> createGraphicBufferAlloc() = 0;
66 /* return an IDisplayEventConnection */
67 virtual sp<IDisplayEventConnection> createDisplayEventConnection() = 0;
70 * requires ACCESS_SURFACE_FLINGER permission.
72 virtual sp<IBinder> createDisplay(const String8& displayName) = 0;
74 /* get the token for the existing default displays. possible values
75 * for id are eDisplayIdMain and eDisplayIdHdmi.
77 virtual sp<IBinder> getBuiltInDisplay(int32_t id) = 0;
79 /* open/close transactions. requires ACCESS_SURFACE_FLINGER permission */
80 virtual void setTransactionState(const Vector<ComposerState>& state,
81 const Vector<DisplayState>& displays, uint32_t flags) = 0;
83 /* signal that we're done booting.
84 * Requires ACCESS_SURFACE_FLINGER permission
86 virtual void bootFinished() = 0;
88 /* verify that an ISurfaceTexture was created by SurfaceFlinger.
90 virtual bool authenticateSurfaceTexture(
91 const sp<ISurfaceTexture>& surface) const = 0;
93 /* Capture the specified screen. requires READ_FRAME_BUFFER permission
94 * This function will fail if there is a secure window on screen.
96 virtual status_t captureScreen(const sp<IBinder>& display, sp<IMemoryHeap>* heap,
97 uint32_t* width, uint32_t* height, PixelFormat* format,
98 uint32_t reqWidth, uint32_t reqHeight,
99 uint32_t minLayerZ, uint32_t maxLayerZ) = 0;
102 /* triggers screen off and waits for it to complete */
103 virtual void blank(const sp<IBinder>& display) = 0;
105 /* triggers screen on and waits for it to complete */
106 virtual void unblank(const sp<IBinder>& display) = 0;
108 /* returns information about a display
109 * intended to be used to get information about built-in displays */
110 virtual status_t getDisplayInfo(const sp<IBinder>& display, DisplayInfo* info) = 0;
112 /* connects to an external display */
113 virtual void connectDisplay(const sp<ISurfaceTexture>& display) = 0;
116 // ----------------------------------------------------------------------------
118 class BnSurfaceComposer: public BnInterface<ISurfaceComposer> {
121 // Note: BOOT_FINISHED must remain this value, it is called from
122 // Java by ActivityManagerService.
123 BOOT_FINISHED = IBinder::FIRST_CALL_TRANSACTION,
125 CREATE_GRAPHIC_BUFFER_ALLOC,
126 CREATE_DISPLAY_EVENT_CONNECTION,
128 GET_BUILT_IN_DISPLAY,
129 SET_TRANSACTION_STATE,
130 AUTHENTICATE_SURFACE,
138 virtual status_t onTransact(uint32_t code, const Parcel& data,
139 Parcel* reply, uint32_t flags = 0);
142 // ----------------------------------------------------------------------------
144 }; // namespace android
146 #endif // ANDROID_GUI_ISURFACE_COMPOSER_H