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authorXin Li <delphij@google.com>2020-08-31 21:21:38 -0700
committerXin Li <delphij@google.com>2020-08-31 21:21:38 -0700
commit628590d7ec80e10a3fc24b1c18a1afb55cca10a8 (patch)
tree4b1c3f52d86d7fb53afbe9e9438468588fa489f8 /libs/androidfw/DisplayEventDispatcher.cpp
parentb11b8ec3aec8bb42f2c07e1c5ac7942da293baa8 (diff)
parentd2d3a20624d968199353ccf6ddbae6f3ac39c9af (diff)
Merge Android R (rvc-dev-plus-aosp-without-vendor@6692709)
Bug: 166295507 Merged-In: I3d92a6de21a938f6b352ec26dc23420c0fe02b27 Change-Id: Ifdb80563ef042738778ebb8a7581a97c4e3d96e2
Diffstat (limited to 'libs/androidfw/DisplayEventDispatcher.cpp')
-rw-r--r--libs/androidfw/DisplayEventDispatcher.cpp153
1 files changed, 0 insertions, 153 deletions
diff --git a/libs/androidfw/DisplayEventDispatcher.cpp b/libs/androidfw/DisplayEventDispatcher.cpp
deleted file mode 100644
index d8a3f42690f4..000000000000
--- a/libs/androidfw/DisplayEventDispatcher.cpp
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * 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 "DisplayEventDispatcher"
-
-#include <cinttypes>
-#include <cstdint>
-
-#include <androidfw/DisplayEventDispatcher.h>
-#include <gui/DisplayEventReceiver.h>
-#include <utils/Log.h>
-#include <utils/Looper.h>
-
-#include <utils/Timers.h>
-
-namespace android {
-
-// Number of events to read at a time from the DisplayEventDispatcher pipe.
-// The value should be large enough that we can quickly drain the pipe
-// using just a few large reads.
-static const size_t EVENT_BUFFER_SIZE = 100;
-
-DisplayEventDispatcher::DisplayEventDispatcher(const sp<Looper>& looper,
- ISurfaceComposer::VsyncSource vsyncSource,
- ISurfaceComposer::ConfigChanged configChanged) :
- mLooper(looper), mReceiver(vsyncSource, configChanged), mWaitingForVsync(false) {
- ALOGV("dispatcher %p ~ Initializing display event dispatcher.", this);
-}
-
-status_t DisplayEventDispatcher::initialize() {
- status_t result = mReceiver.initCheck();
- if (result) {
- ALOGW("Failed to initialize display event receiver, status=%d", result);
- return result;
- }
-
- int rc = mLooper->addFd(mReceiver.getFd(), 0, Looper::EVENT_INPUT,
- this, NULL);
- if (rc < 0) {
- return UNKNOWN_ERROR;
- }
- return OK;
-}
-
-void DisplayEventDispatcher::dispose() {
- ALOGV("dispatcher %p ~ Disposing display event dispatcher.", this);
-
- if (!mReceiver.initCheck()) {
- mLooper->removeFd(mReceiver.getFd());
- }
-}
-
-status_t DisplayEventDispatcher::scheduleVsync() {
- if (!mWaitingForVsync) {
- ALOGV("dispatcher %p ~ Scheduling vsync.", this);
-
- // Drain all pending events.
- nsecs_t vsyncTimestamp;
- PhysicalDisplayId vsyncDisplayId;
- uint32_t vsyncCount;
- if (processPendingEvents(&vsyncTimestamp, &vsyncDisplayId, &vsyncCount)) {
- ALOGE("dispatcher %p ~ last event processed while scheduling was for %" PRId64 "",
- this, ns2ms(static_cast<nsecs_t>(vsyncTimestamp)));
- }
-
- status_t status = mReceiver.requestNextVsync();
- if (status) {
- ALOGW("Failed to request next vsync, status=%d", status);
- return status;
- }
-
- mWaitingForVsync = true;
- }
- return OK;
-}
-
-int DisplayEventDispatcher::handleEvent(int, int events, void*) {
- if (events & (Looper::EVENT_ERROR | Looper::EVENT_HANGUP)) {
- ALOGE("Display event receiver pipe was closed or an error occurred. "
- "events=0x%x", events);
- return 0; // remove the callback
- }
-
- if (!(events & Looper::EVENT_INPUT)) {
- ALOGW("Received spurious callback for unhandled poll event. "
- "events=0x%x", events);
- return 1; // keep the callback
- }
-
- // Drain all pending events, keep the last vsync.
- nsecs_t vsyncTimestamp;
- PhysicalDisplayId vsyncDisplayId;
- uint32_t vsyncCount;
- if (processPendingEvents(&vsyncTimestamp, &vsyncDisplayId, &vsyncCount)) {
- ALOGV("dispatcher %p ~ Vsync pulse: timestamp=%" PRId64 ", displayId=%"
- ANDROID_PHYSICAL_DISPLAY_ID_FORMAT ", count=%d",
- this, ns2ms(vsyncTimestamp), vsyncDisplayId, vsyncCount);
- mWaitingForVsync = false;
- dispatchVsync(vsyncTimestamp, vsyncDisplayId, vsyncCount);
- }
-
- return 1; // keep the callback
-}
-
-bool DisplayEventDispatcher::processPendingEvents(
- nsecs_t* outTimestamp, PhysicalDisplayId* outDisplayId, uint32_t* outCount) {
- bool gotVsync = false;
- DisplayEventReceiver::Event buf[EVENT_BUFFER_SIZE];
- ssize_t n;
- while ((n = mReceiver.getEvents(buf, EVENT_BUFFER_SIZE)) > 0) {
- ALOGV("dispatcher %p ~ Read %d events.", this, int(n));
- for (ssize_t i = 0; i < n; i++) {
- const DisplayEventReceiver::Event& ev = buf[i];
- switch (ev.header.type) {
- case DisplayEventReceiver::DISPLAY_EVENT_VSYNC:
- // Later vsync events will just overwrite the info from earlier
- // ones. That's fine, we only care about the most recent.
- gotVsync = true;
- *outTimestamp = ev.header.timestamp;
- *outDisplayId = ev.header.displayId;
- *outCount = ev.vsync.count;
- break;
- case DisplayEventReceiver::DISPLAY_EVENT_HOTPLUG:
- dispatchHotplug(ev.header.timestamp, ev.header.displayId, ev.hotplug.connected);
- break;
- case DisplayEventReceiver::DISPLAY_EVENT_CONFIG_CHANGED:
- dispatchConfigChanged(ev.header.timestamp, ev.header.displayId, ev.config.configId);
- break;
- default:
- ALOGW("dispatcher %p ~ ignoring unknown event type %#x", this, ev.header.type);
- break;
- }
- }
- }
- if (n < 0) {
- ALOGW("Failed to get events from display event dispatcher, status=%d", status_t(n));
- }
- return gotVsync;
-}
-}