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Display events now always carry the display id they happened on 

Change-Id: I12de1d883c23927722bc3a71b782f0079de4e831
This commit is contained in:
Mathias Agopian 2012-09-20 23:24:19 -07:00
parent b4d18ed34e
commit ff28e201ec
3 changed files with 56 additions and 27 deletions
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2
include/gui/DisplayEventReceiver.h
View File

@ -48,6 +48,7 @@ public:
struct Header {
uint32_t type;
uint32_t id;
nsecs_t timestamp;
};
@ -56,7 +57,6 @@ public:
};
struct Hotplug {
int32_t id;
bool connected;
};

76
services/surfaceflinger/EventThread.cpp
View File

@ -38,10 +38,15 @@ namespace android {
EventThread::EventThread(const sp<SurfaceFlinger>& flinger)
: mFlinger(flinger),
mVSyncTimestamp(0),
mUseSoftwareVSync(false),
mVSyncCount(0),
mDebugVsyncEnabled(false) {
for (int32_t i=0 ; i<HWC_DISPLAY_TYPES_SUPPORTED ; i++) {
mVSyncEvent[i].header.type = DisplayEventReceiver::DISPLAY_EVENT_VSYNC;
mVSyncEvent[i].header.id = 0;
mVSyncEvent[i].header.timestamp = 0;
mVSyncEvent[i].vsync.count = 0;
}
}
void EventThread::onFirstRef() {
@ -107,21 +112,33 @@ void EventThread::onScreenAcquired() {
void EventThread::onVSyncReceived(int type, nsecs_t timestamp) {
ALOGE_IF(type >= HWC_DISPLAY_TYPES_SUPPORTED,
"received event for an invalid display (id=%d)", type);
Mutex::Autolock _l(mLock);
mVSyncTimestamp = timestamp;
mVSyncCount++;
mCondition.broadcast();
if (type < HWC_DISPLAY_TYPES_SUPPORTED) {
mVSyncEvent[type].header.type = DisplayEventReceiver::DISPLAY_EVENT_VSYNC;
mVSyncEvent[type].header.id = type;
mVSyncEvent[type].header.timestamp = timestamp;
mVSyncEvent[type].vsync.count++;
mCondition.broadcast();
}
}
void EventThread::onHotplugReceived(int type, bool connected) {
ALOGE_IF(type >= HWC_DISPLAY_TYPES_SUPPORTED,
"received event for an invalid display (id=%d)", type);
Mutex::Autolock _l(mLock);
DisplayEventReceiver::Event event;
event.header.type = DisplayEventReceiver::DISPLAY_EVENT_HOTPLUG;
event.header.timestamp = systemTime();
event.hotplug.id = type;
event.hotplug.connected = connected;
mPendingEvents.add(event);
mCondition.broadcast();
if (type < HWC_DISPLAY_TYPES_SUPPORTED) {
DisplayEventReceiver::Event event;
event.header.type = DisplayEventReceiver::DISPLAY_EVENT_HOTPLUG;
event.header.id = type;
event.header.timestamp = systemTime();
event.hotplug.connected = connected;
mPendingEvents.add(event);
mCondition.broadcast();
}
}
bool EventThread::threadLoop() {
@ -164,16 +181,22 @@ Vector< sp<EventThread::Connection> > EventThread::waitForEvent(
do {
bool eventPending = false;
bool waitForVSync = false;
size_t vsyncCount = mVSyncCount;
nsecs_t timestamp = mVSyncTimestamp;
mVSyncTimestamp = 0;
if (timestamp) {
// we have a vsync event to dispatch
event->header.type = DisplayEventReceiver::DISPLAY_EVENT_VSYNC;
event->header.timestamp = timestamp;
event->vsync.count = vsyncCount;
} else {
size_t vsyncCount = 0;
nsecs_t timestamp = 0;
for (int32_t i=0 ; i<HWC_DISPLAY_TYPES_SUPPORTED ; i++) {
timestamp = mVSyncEvent[i].header.timestamp;
if (timestamp) {
// we have a vsync event to dispatch
*event = mVSyncEvent[i];
mVSyncEvent[i].header.timestamp = 0;
vsyncCount = mVSyncEvent[i].vsync.count;
break;
}
}
if (!timestamp) {
// no vsync event, see if there are some other event
eventPending = !mPendingEvents.isEmpty();
if (eventPending) {
// we have some other event to dispatch
@ -259,8 +282,12 @@ Vector< sp<EventThread::Connection> > EventThread::waitForEvent(
if (!softwareSync) {
ALOGW("Timed out waiting for hw vsync; faking it");
}
mVSyncTimestamp = systemTime(SYSTEM_TIME_MONOTONIC);
mVSyncCount++;
// FIXME: how do we decide which display id the fake
// vsync came from ?
mVSyncEvent[0].header.type = DisplayEventReceiver::DISPLAY_EVENT_VSYNC;
mVSyncEvent[0].header.id = HWC_DISPLAY_PRIMARY;
mVSyncEvent[0].header.timestamp = systemTime(SYSTEM_TIME_MONOTONIC);
mVSyncEvent[0].vsync.count++;
}
} else {
// Nobody is interested in vsync, so we just want to sleep.
@ -300,7 +327,8 @@ void EventThread::dump(String8& result, char* buffer, size_t SIZE) const {
result.appendFormat(" soft-vsync: %s\n",
mUseSoftwareVSync?"enabled":"disabled");
result.appendFormat(" numListeners=%u,\n events-delivered: %u\n",
mDisplayEventConnections.size(), mVSyncCount);
mDisplayEventConnections.size(),
mVSyncEvent[HWC_DISPLAY_PRIMARY].vsync.count);
for (size_t i=0 ; i<mDisplayEventConnections.size() ; i++) {
sp<Connection> connection =
mDisplayEventConnections.itemAt(i).promote();

5
services/surfaceflinger/EventThread.h
View File

@ -23,6 +23,8 @@
#include <gui/DisplayEventReceiver.h>
#include <gui/IDisplayEventConnection.h>
#include <hardware/hwcomposer_defs.h>
#include <utils/Errors.h>
#include <utils/threads.h>
#include <utils/SortedVector.h>
@ -102,9 +104,8 @@ private:
// protected by mLock
SortedVector< wp<Connection> > mDisplayEventConnections;
Vector< DisplayEventReceiver::Event > mPendingEvents;
nsecs_t mVSyncTimestamp;
DisplayEventReceiver::Event mVSyncEvent[HWC_DISPLAY_TYPES_SUPPORTED];
bool mUseSoftwareVSync;
size_t mVSyncCount;
// for debugging
bool mDebugVsyncEnabled;