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Viewing changes to android/frameworks/native/libs/gui/IDisplayEventConnection.cpp

  • Committer: Package Import Robot
  • Author(s): Dmitrijs Ledkovs
  • Date: 2013-07-05 10:12:24 UTC
  • Revision ID: package-import@ubuntu.com-20130705101224-6qo3e8jbz8p31aa1
Tags: upstream-0.20130705.1
Import upstream version 0.20130705.1

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android/frameworks/native/libs/gui/IDisplayEventConnection.cpp
 
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/*
 
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 * Copyright (C) 2011 The Android Open Source Project
 
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 *
 
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 * Licensed under the Apache License, Version 2.0 (the "License");
 
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 * you may not use this file except in compliance with the License.
 
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 * You may obtain a copy of the License at
 
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 *
 
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 *      http://www.apache.org/licenses/LICENSE-2.0
 
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 *
 
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 * Unless required by applicable law or agreed to in writing, software
 
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 * distributed under the License is distributed on an "AS IS" BASIS,
 
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 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 
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 * See the License for the specific language governing permissions and
 
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 * limitations under the License.
 
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 */
 
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#include <stdint.h>
 
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#include <sys/types.h>
 
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#include <utils/Errors.h>
 
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#include <utils/RefBase.h>
 
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#include <utils/Timers.h>
 
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#include <binder/Parcel.h>
 
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#include <binder/IInterface.h>
 
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#include <gui/IDisplayEventConnection.h>
 
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#include <gui/BitTube.h>
 
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namespace android {
 
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// ----------------------------------------------------------------------------
 
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enum {
 
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    GET_DATA_CHANNEL = IBinder::FIRST_CALL_TRANSACTION,
 
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    SET_VSYNC_RATE,
 
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    REQUEST_NEXT_VSYNC
 
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};
 
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class BpDisplayEventConnection : public BpInterface<IDisplayEventConnection>
 
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{
 
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public:
 
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    BpDisplayEventConnection(const sp<IBinder>& impl)
 
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        : BpInterface<IDisplayEventConnection>(impl)
 
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    {
 
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    }
 
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    virtual sp<BitTube> getDataChannel() const
 
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    {
 
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        Parcel data, reply;
 
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        data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor());
 
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        remote()->transact(GET_DATA_CHANNEL, data, &reply);
 
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        return new BitTube(reply);
 
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    }
 
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    virtual void setVsyncRate(uint32_t count) {
 
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        Parcel data, reply;
 
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        data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor());
 
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        data.writeInt32(count);
 
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        remote()->transact(SET_VSYNC_RATE, data, &reply);
 
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    }
 
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    virtual void requestNextVsync() {
 
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        Parcel data, reply;
 
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        data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor());
 
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        remote()->transact(REQUEST_NEXT_VSYNC, data, &reply, IBinder::FLAG_ONEWAY);
 
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    }
 
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};
 
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IMPLEMENT_META_INTERFACE(DisplayEventConnection, "android.gui.DisplayEventConnection");
 
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// ----------------------------------------------------------------------------
 
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status_t BnDisplayEventConnection::onTransact(
 
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    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
 
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{
 
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    switch(code) {
 
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        case GET_DATA_CHANNEL: {
 
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            CHECK_INTERFACE(IDisplayEventConnection, data, reply);
 
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            sp<BitTube> channel(getDataChannel());
 
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            channel->writeToParcel(reply);
 
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            return NO_ERROR;
 
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        } break;
 
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        case SET_VSYNC_RATE: {
 
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            CHECK_INTERFACE(IDisplayEventConnection, data, reply);
 
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            setVsyncRate(data.readInt32());
 
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            return NO_ERROR;
 
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        } break;
 
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        case REQUEST_NEXT_VSYNC: {
 
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            CHECK_INTERFACE(IDisplayEventConnection, data, reply);
 
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            requestNextVsync();
 
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            return NO_ERROR;
 
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        } break;
 
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    }
 
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    return BBinder::onTransact(code, data, reply, flags);
 
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}
 
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// ----------------------------------------------------------------------------
 
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}; // namespace android