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/*
* 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,
SET_VSYNC_RATE,
REQUEST_NEXT_VSYNC
};
class BpDisplayEventConnection : public BpInterface<IDisplayEventConnection>
{
public:
BpDisplayEventConnection(const sp<IBinder>& impl)
: BpInterface<IDisplayEventConnection>(impl)
{
}
virtual ~BpDisplayEventConnection();
virtual sp<BitTube> getDataChannel() const
{
Parcel data, reply;
data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor());
remote()->transact(GET_DATA_CHANNEL, data, &reply);
return new BitTube(reply);
}
virtual void setVsyncRate(uint32_t count) {
Parcel data, reply;
data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor());
data.writeUint32(count);
remote()->transact(SET_VSYNC_RATE, data, &reply);
}
virtual void requestNextVsync() {
Parcel data, reply;
data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor());
remote()->transact(REQUEST_NEXT_VSYNC, data, &reply, IBinder::FLAG_ONEWAY);
}
};
// Out-of-line virtual method definition to trigger vtable emission in this
// translation unit (see clang warning -Wweak-vtables)
BpDisplayEventConnection::~BpDisplayEventConnection() {}
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;
}
case SET_VSYNC_RATE: {
CHECK_INTERFACE(IDisplayEventConnection, data, reply);
setVsyncRate(data.readUint32());
return NO_ERROR;
}
case REQUEST_NEXT_VSYNC: {
CHECK_INTERFACE(IDisplayEventConnection, data, reply);
requestNextVsync();
return NO_ERROR;
}
}
return BBinder::onTransact(code, data, reply, flags);
}
// ----------------------------------------------------------------------------
}; // namespace android
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