72 lines
2.1 KiB
C++
72 lines
2.1 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 <gui/IDisplayEventConnection.h>
|
|
#include <gui/BitTube.h>
|
|
#include <gui/DisplayEventReceiver.h>
|
|
|
|
#include <utils/Errors.h>
|
|
|
|
#include "SurfaceFlinger.h"
|
|
#include "DisplayEventConnection.h"
|
|
#include "EventThread.h"
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
namespace android {
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
DisplayEventConnection::DisplayEventConnection(
|
|
const sp<EventThread>& eventThread)
|
|
: mEventThread(eventThread), mChannel(new BitTube())
|
|
{
|
|
}
|
|
|
|
DisplayEventConnection::~DisplayEventConnection() {
|
|
mEventThread->unregisterDisplayEventConnection(this);
|
|
}
|
|
|
|
void DisplayEventConnection::onFirstRef() {
|
|
// NOTE: mEventThread doesn't hold a strong reference on us
|
|
mEventThread->registerDisplayEventConnection(this);
|
|
}
|
|
|
|
sp<BitTube> DisplayEventConnection::getDataChannel() const {
|
|
return mChannel;
|
|
}
|
|
|
|
void DisplayEventConnection::setVsyncRate(uint32_t count) {
|
|
mEventThread->setVsyncRate(count, this);
|
|
}
|
|
|
|
void DisplayEventConnection::requestNextVsync() {
|
|
mEventThread->requestNextVsync(this);
|
|
}
|
|
|
|
status_t DisplayEventConnection::postEvent(
|
|
const DisplayEventReceiver::Event& event) {
|
|
ssize_t size = DisplayEventReceiver::sendEvents(mChannel, &event, 1);
|
|
return size < 0 ? status_t(size) : status_t(NO_ERROR);
|
|
}
|
|
|
|
// ---------------------------------------------------------------------------
|
|
|
|
}; // namespace android
|