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/*
* Copyright (C) 2006 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_GUI_ISURFACE_COMPOSER_H
#define ANDROID_GUI_ISURFACE_COMPOSER_H
#include <stdint.h>
#include <sys/types.h>
#include <utils/RefBase.h>
#include <utils/Errors.h>
#include <binder/IInterface.h>
#include <ui/PixelFormat.h>
#include <gui/IGraphicBufferAlloc.h>
#include <gui/ISurfaceComposerClient.h>
namespace android {
// ----------------------------------------------------------------------------
class ComposerState;
class DisplayState;
class DisplayInfo;
class IDisplayEventConnection;
class IMemoryHeap;
class ISurfaceComposer: public IInterface {
public:
DECLARE_META_INTERFACE(SurfaceComposer);
// flags for setTransactionState()
enum {
eSynchronous = 0x01,
};
enum {
eDisplayIdMain = 0,
eDisplayIdHdmi = 1
};
/* create connection with surface flinger, requires
* ACCESS_SURFACE_FLINGER permission
*/
virtual sp<ISurfaceComposerClient> createConnection() = 0;
/* create a graphic buffer allocator
*/
virtual sp<IGraphicBufferAlloc> createGraphicBufferAlloc() = 0;
/* return an IDisplayEventConnection */
virtual sp<IDisplayEventConnection> createDisplayEventConnection() = 0;
/* create a display
* requires ACCESS_SURFACE_FLINGER permission.
*/
virtual sp<IBinder> createDisplay(const String8& displayName) = 0;
/* get the token for the existing default displays. possible values
* for id are eDisplayIdMain and eDisplayIdHdmi.
*/
virtual sp<IBinder> getBuiltInDisplay(int32_t id) = 0;
/* open/close transactions. requires ACCESS_SURFACE_FLINGER permission */
virtual void setTransactionState(const Vector<ComposerState>& state,
const Vector<DisplayState>& displays, uint32_t flags) = 0;
/* signal that we're done booting.
* Requires ACCESS_SURFACE_FLINGER permission
*/
virtual void bootFinished() = 0;
/* verify that an ISurfaceTexture was created by SurfaceFlinger.
*/
virtual bool authenticateSurfaceTexture(
const sp<ISurfaceTexture>& surface) const = 0;
/* Capture the specified screen. requires READ_FRAME_BUFFER permission
* This function will fail if there is a secure window on screen.
*/
virtual status_t captureScreen(const sp<IBinder>& display, sp<IMemoryHeap>* heap,
uint32_t* width, uint32_t* height, PixelFormat* format,
uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ) = 0;
/* triggers screen off and waits for it to complete */
virtual void blank(const sp<IBinder>& display) = 0;
/* triggers screen on and waits for it to complete */
virtual void unblank(const sp<IBinder>& display) = 0;
/* returns information about a display
* intended to be used to get information about built-in displays */
virtual status_t getDisplayInfo(const sp<IBinder>& display, DisplayInfo* info) = 0;
/* connects to an external display */
virtual void connectDisplay(const sp<ISurfaceTexture>& display) = 0;
};
// ----------------------------------------------------------------------------
class BnSurfaceComposer: public BnInterface<ISurfaceComposer> {
public:
enum {
// Note: BOOT_FINISHED must remain this value, it is called from
// Java by ActivityManagerService.
BOOT_FINISHED = IBinder::FIRST_CALL_TRANSACTION,
CREATE_CONNECTION,
CREATE_GRAPHIC_BUFFER_ALLOC,
CREATE_DISPLAY_EVENT_CONNECTION,
CREATE_DISPLAY,
GET_BUILT_IN_DISPLAY,
SET_TRANSACTION_STATE,
AUTHENTICATE_SURFACE,
CAPTURE_SCREEN,
BLANK,
UNBLANK,
GET_DISPLAY_INFO,
CONNECT_DISPLAY,
};
virtual status_t onTransact(uint32_t code, const Parcel& data,
Parcel* reply, uint32_t flags = 0);
};
// ----------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_GUI_ISURFACE_COMPOSER_H
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