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/*
* Copyright © 2012 Intel Corporation
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Jackie Li <yaodong.li@intel.com>
*
*/
#include <Log.h>
#include <VsyncEventObserver.h>
#include <DisplayDevice.h>
namespace android {
namespace intel {
static Log& log = Log::getInstance();
VsyncEventObserver::VsyncEventObserver(DisplayDevice& disp,
VsyncControl& vsync)
: mDisplayDevice(disp),
mVsync(vsync),
mEnabled(0)
{
log.v("VsyncEventObserver()");
}
VsyncEventObserver::~VsyncEventObserver()
{
}
void VsyncEventObserver::control(int enabled)
{
log.v("control: enabled %s", enabled ? "True" : "False");
Mutex::Autolock _l(mLock);
mEnabled = enabled;
mCondition.signal();
}
bool VsyncEventObserver::threadLoop()
{
{ // scope for lock
Mutex::Autolock _l(mLock);
while (!mEnabled) {
mCondition.wait(mLock);
}
}
int64_t timestamp;
bool ret = mVsync.wait(mDisplayDevice.getType(), timestamp);
if (ret == false) {
log.w("threadLoop: failed to wait for vsync, check vsync enabling...");
return true;
}
// notify device
mDisplayDevice.onVsync(timestamp);
return true;
}
status_t VsyncEventObserver::readyToRun()
{
log.v("VsyncEventObserver: readyToRun. disp %d", mDisplayDevice.getType());
return NO_ERROR;
}
void VsyncEventObserver::onFirstRef()
{
log.v("VsyncEventObserver: onFirstRef. disp %d", mDisplayDevice.getType());
run("VsyncEventObserver", PRIORITY_URGENT_DISPLAY);
}
} // namespace intel
} // namesapce android
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