| /* |
| * 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()) { |
| Lock(); |
| |
| // 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); |
| Unlock(); |
| |
| 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; |
| } |
| } |