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/*
* Copyright (C) 2015 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.
*/
#define LOG_TAG "hwc-drm-compositor-worker"
#include "drmdisplaycompositor.h"
#include "drmcompositorworker.h"
#include "worker.h"
#include <stdlib.h>
#include <cutils/log.h>
#include <hardware/hardware.h>
namespace android {
static const int64_t kSquashWait = 500000000LL;
DrmCompositorWorker::DrmCompositorWorker(DrmDisplayCompositor *compositor)
: Worker("drm-compositor", HAL_PRIORITY_URGENT_DISPLAY),
compositor_(compositor) {
}
DrmCompositorWorker::~DrmCompositorWorker() {
}
int DrmCompositorWorker::Init() {
return InitWorker();
}
void DrmCompositorWorker::Routine() {
int ret;
if (!compositor_->HaveQueuedComposites()) {
ret = Lock();
if (ret) {
ALOGE("Failed to lock worker, %d", ret);
return;
}
// Only use a timeout if we didn't do a SquashAll last time. This will
// prevent wait_ret == -ETIMEDOUT which would trigger a SquashAll and be a
// pointless drain on resources.
int wait_ret = did_squash_all_ ? WaitForSignalOrExitLocked()
: WaitForSignalOrExitLocked(kSquashWait);
ret = Unlock();
if (ret) {
ALOGE("Failed to unlock worker, %d", ret);
return;
}
switch (wait_ret) {
case 0:
break;
case -EINTR:
return;
case -ETIMEDOUT:
ret = compositor_->SquashAll();
if (ret)
ALOGE("Failed to squash all %d", ret);
did_squash_all_ = true;
return;
default:
ALOGE("Failed to wait for signal, %d", wait_ret);
return;
}
}
ret = compositor_->Composite();
if (ret)
ALOGE("Failed to composite! %d", ret);
did_squash_all_ = false;
}
}
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