replicant-frameworks_native/libs/gui/IDisplayEventConnection.cpp
Mathias Agopian d0566bc26f Add support for sending VSYNC events to the framework
use gui/DisplayEvent to receive the events. Events are
dispatched through a unix pipe, so the API is compatible
with utils/Looper. see gui/DisplayEvent.h for more info.

Bug: 1475048
Change-Id: Ia720f64d1b950328b47b22c6a86042e481d35f09
2011-11-29 13:10:25 -08:00

74 lines
2.2 KiB
C++

/*
* Copyright (C) 2011 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.
*/
#include <stdint.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <utils/RefBase.h>
#include <utils/Timers.h>
#include <binder/Parcel.h>
#include <binder/IInterface.h>
#include <gui/IDisplayEventConnection.h>
#include <gui/BitTube.h>
namespace android {
// ----------------------------------------------------------------------------
enum {
GET_DATA_CHANNEL = IBinder::FIRST_CALL_TRANSACTION,
};
class BpDisplayEventConnection : public BpInterface<IDisplayEventConnection>
{
public:
BpDisplayEventConnection(const sp<IBinder>& impl)
: BpInterface<IDisplayEventConnection>(impl)
{
}
virtual sp<BitTube> getDataChannel() const
{
Parcel data, reply;
data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor());
remote()->transact(GET_DATA_CHANNEL, data, &reply);
return new BitTube(reply);
}
};
IMPLEMENT_META_INTERFACE(DisplayEventConnection, "android.gui.DisplayEventConnection");
// ----------------------------------------------------------------------------
status_t BnDisplayEventConnection::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case GET_DATA_CHANNEL: {
CHECK_INTERFACE(IDisplayEventConnection, data, reply);
sp<BitTube> channel(getDataChannel());
channel->writeToParcel(reply);
return NO_ERROR;
} break;
}
return BBinder::onTransact(code, data, reply, flags);
}
// ----------------------------------------------------------------------------
}; // namespace android