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-rw-r--r--services/surfaceflinger/Android.mk6
-rw-r--r--services/surfaceflinger/EventThread.cpp29
-rw-r--r--services/surfaceflinger/EventThread.h8
-rw-r--r--services/surfaceflinger/Layer.cpp5
-rw-r--r--services/surfaceflinger/MessageQueue.cpp61
-rw-r--r--services/surfaceflinger/MessageQueue.h16
-rw-r--r--services/surfaceflinger/SurfaceFlinger.cpp5
-rw-r--r--services/surfaceflinger/SurfaceTextureLayer.cpp4
8 files changed, 120 insertions, 14 deletions
diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index 95d651a..732af53 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -23,18 +23,22 @@ LOCAL_SRC_FILES:= \
LOCAL_CFLAGS:= -DLOG_TAG=\"SurfaceFlinger\"
LOCAL_CFLAGS += -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
+ifeq ($(TARGET_HAS_WAITFORVSYNC), true)
+ LOCAL_CFLAGS += -DHAS_WAITFORVSYNC
+endif
+
ifeq ($(TARGET_BOARD_PLATFORM), omap3)
LOCAL_CFLAGS += -DNO_RGBX_8888
endif
ifeq ($(TARGET_BOARD_PLATFORM), omap4)
LOCAL_CFLAGS += -DHAS_CONTEXT_PRIORITY
+ LOCAL_CFLAGS += -DUSE_TRIPLE_BUFFERING=1
endif
ifeq ($(TARGET_BOARD_PLATFORM), s5pc110)
LOCAL_CFLAGS += -DHAS_CONTEXT_PRIORITY -DNEVER_DEFAULT_TO_ASYNC_MODE
LOCAL_CFLAGS += -DREFRESH_RATE=56
endif
-
LOCAL_SHARED_LIBRARIES := \
libcutils \
libhardware \
diff --git a/services/surfaceflinger/EventThread.cpp b/services/surfaceflinger/EventThread.cpp
index 6796d7d..92d4266 100644
--- a/services/surfaceflinger/EventThread.cpp
+++ b/services/surfaceflinger/EventThread.cpp
@@ -36,6 +36,7 @@ namespace android {
EventThread::EventThread(const sp<SurfaceFlinger>& flinger)
: mFlinger(flinger),
mHw(flinger->graphicPlane(0).displayHardware()),
+ mLastVSyncTimestamp(0),
mDeliveredEvents(0)
{
}
@@ -44,6 +45,20 @@ void EventThread::onFirstRef() {
run("EventThread", PRIORITY_URGENT_DISPLAY + PRIORITY_MORE_FAVORABLE);
}
+sp<DisplayEventConnection> EventThread::createEventConnection() const {
+ return new DisplayEventConnection(const_cast<EventThread*>(this));
+}
+
+nsecs_t EventThread::getLastVSyncTimestamp() const {
+ Mutex::Autolock _l(mLock);
+ return mLastVSyncTimestamp;
+}
+
+nsecs_t EventThread::getVSyncPeriod() const {
+ return mHw.getRefreshPeriod();
+
+}
+
status_t EventThread::registerDisplayEventConnection(
const sp<DisplayEventConnection>& connection) {
Mutex::Autolock _l(mLock);
@@ -80,8 +95,11 @@ void EventThread::setVsyncRate(uint32_t count,
Mutex::Autolock _l(mLock);
ConnectionInfo* info = getConnectionInfoLocked(connection);
if (info) {
- info->count = (count == 0) ? -1 : count;
- mCondition.signal();
+ const int32_t new_count = (count == 0) ? -1 : count;
+ if (info->count != new_count) {
+ info->count = new_count;
+ mCondition.signal();
+ }
}
}
}
@@ -90,10 +108,8 @@ void EventThread::requestNextVsync(
const wp<DisplayEventConnection>& connection) {
Mutex::Autolock _l(mLock);
ConnectionInfo* info = getConnectionInfoLocked(connection);
- if (info) {
- if (info->count < 0) {
- info->count = 0;
- }
+ if (info && info->count < 0) {
+ info->count = 0;
mCondition.signal();
}
}
@@ -132,6 +148,7 @@ bool EventThread::threadLoop() {
timestamp = mHw.waitForRefresh();
mLock.lock();
mDeliveredEvents++;
+ mLastVSyncTimestamp = timestamp;
// now see if we still need to report this VSYNC event
bool reportVsync = false;
diff --git a/services/surfaceflinger/EventThread.h b/services/surfaceflinger/EventThread.h
index 35bd299..3a3071e 100644
--- a/services/surfaceflinger/EventThread.h
+++ b/services/surfaceflinger/EventThread.h
@@ -36,6 +36,7 @@ namespace android {
class SurfaceFlinger;
class DisplayHardware;
+class DisplayEventConnection;
// ---------------------------------------------------------------------------
@@ -45,6 +46,8 @@ class EventThread : public Thread {
public:
EventThread(const sp<SurfaceFlinger>& flinger);
+ sp<DisplayEventConnection> createEventConnection() const;
+
status_t registerDisplayEventConnection(
const sp<DisplayEventConnection>& connection);
@@ -56,6 +59,10 @@ public:
void requestNextVsync(const wp<DisplayEventConnection>& connection);
+ nsecs_t getLastVSyncTimestamp() const;
+
+ nsecs_t getVSyncPeriod() const;
+
void dump(String8& result, char* buffer, size_t SIZE) const;
private:
@@ -88,6 +95,7 @@ private:
// protected by mLock
KeyedVector< wp<DisplayEventConnection>, ConnectionInfo > mDisplayEventConnections;
+ nsecs_t mLastVSyncTimestamp;
// main thread only
size_t mDeliveredEvents;
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 8e87b88..9c04d59 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -97,7 +97,12 @@ void Layer::onFirstRef()
mSurfaceTexture = new SurfaceTextureLayer(mTextureName, this);
mSurfaceTexture->setFrameAvailableListener(new FrameQueuedListener(this));
mSurfaceTexture->setSynchronousMode(true);
+#ifdef USE_TRIPLE_BUFFERING
+#warning "using triple buffering"
+ mSurfaceTexture->setBufferCountServer(3);
+#else
mSurfaceTexture->setBufferCountServer(2);
+#endif
}
Layer::~Layer()
diff --git a/services/surfaceflinger/MessageQueue.cpp b/services/surfaceflinger/MessageQueue.cpp
index cbd530c..70711e7 100644
--- a/services/surfaceflinger/MessageQueue.cpp
+++ b/services/surfaceflinger/MessageQueue.cpp
@@ -18,12 +18,17 @@
#include <errno.h>
#include <sys/types.h>
+#include <binder/IPCThreadState.h>
+
#include <utils/threads.h>
#include <utils/Timers.h>
#include <utils/Log.h>
-#include <binder/IPCThreadState.h>
+
+#include <gui/IDisplayEventConnection.h>
+#include <gui/BitTube.h>
#include "MessageQueue.h"
+#include "EventThread.h"
namespace android {
@@ -51,6 +56,15 @@ MessageQueue::MessageQueue()
MessageQueue::~MessageQueue() {
}
+void MessageQueue::setEventThread(const sp<EventThread>& eventThread)
+{
+ mEventThread = eventThread;
+ mEvents = eventThread->createEventConnection();
+ mEventTube = mEvents->getDataChannel();
+ mLooper->addFd(mEventTube->getFd(), 0, ALOOPER_EVENT_INPUT,
+ MessageQueue::cb_eventReceiver, this);
+}
+
void MessageQueue::waitMessage() {
do {
IPCThreadState::self()->flushCommands();
@@ -93,13 +107,54 @@ status_t MessageQueue::postMessage(
return NO_ERROR;
}
-status_t MessageQueue::invalidate() {
+void MessageQueue::scheduleWorkASAP() {
if (android_atomic_or(1, &mWorkPending) == 0) {
mLooper->wake();
- }
+ }
+}
+
+status_t MessageQueue::invalidate() {
+ mEvents->requestNextVsync();
return NO_ERROR;
}
+int MessageQueue::cb_eventReceiver(int fd, int events, void* data) {
+ MessageQueue* queue = reinterpret_cast<MessageQueue *>(data);
+ return queue->eventReceiver(fd, events);
+}
+
+int MessageQueue::eventReceiver(int fd, int events) {
+ ssize_t n;
+ DisplayEventReceiver::Event buffer[8];
+ while ((n = getEvents(buffer, 8)) > 0) {
+ for (int i=0 ; i<n ; i++) {
+ if (buffer[i].header.type == DisplayEventReceiver::DISPLAY_EVENT_VSYNC) {
+ scheduleWorkASAP();
+ break;
+ }
+ }
+ }
+ return 1;
+}
+
+ssize_t MessageQueue::getEvents(
+ DisplayEventReceiver::Event* events, size_t count)
+{
+ ssize_t size = mEventTube->read(events, sizeof(events[0])*count);
+ ALOGE_IF(size<0, "MessageQueue::getEvents error (%s)", strerror(-size));
+ if (size >= 0) {
+ // Note: if (size % sizeof(events[0])) != 0, we've got a
+ // partial read. This can happen if the queue filed up (ie: if we
+ // didn't pull from it fast enough).
+ // We discard the partial event and rely on the sender to
+ // re-send the event if appropriate (some events, like VSYNC
+ // can be lost forever).
+ // returns number of events read
+ size /= sizeof(events[0]);
+ }
+ return size;
+}
+
// ---------------------------------------------------------------------------
}; // namespace android
diff --git a/services/surfaceflinger/MessageQueue.h b/services/surfaceflinger/MessageQueue.h
index 2317d81..5ea197d 100644
--- a/services/surfaceflinger/MessageQueue.h
+++ b/services/surfaceflinger/MessageQueue.h
@@ -25,10 +25,15 @@
#include <utils/Timers.h>
#include <utils/Looper.h>
+#include <gui/DisplayEventReceiver.h>
+
#include "Barrier.h"
namespace android {
+class IDisplayEventConnection;
+class EventThread;
+
// ---------------------------------------------------------------------------
class MessageBase : public MessageHandler
@@ -55,11 +60,20 @@ private:
class MessageQueue {
sp<Looper> mLooper;
- volatile int32_t mWorkPending;
+ sp<EventThread> mEventThread;
+ sp<IDisplayEventConnection> mEvents;
+ sp<BitTube> mEventTube;
+ int32_t mWorkPending;
+
+ static int cb_eventReceiver(int fd, int events, void* data);
+ int eventReceiver(int fd, int events);
+ ssize_t getEvents(DisplayEventReceiver::Event* events, size_t count);
+ void scheduleWorkASAP();
public:
MessageQueue();
~MessageQueue();
+ void setEventThread(const sp<EventThread>& events);
void waitMessage();
status_t postMessage(const sp<MessageBase>& message, nsecs_t reltime=0);
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 887aee7..ff70ec3 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -296,6 +296,7 @@ status_t SurfaceFlinger::readyToRun()
// start the EventThread
mEventThread = new EventThread(this);
+ mEventQueue.setEventThread(mEventThread);
/*
* We're now ready to accept clients...
@@ -383,8 +384,7 @@ bool SurfaceFlinger::authenticateSurfaceTexture(
// ----------------------------------------------------------------------------
sp<IDisplayEventConnection> SurfaceFlinger::createDisplayEventConnection() {
- sp<DisplayEventConnection> result(new DisplayEventConnection(mEventThread));
- return result;
+ return mEventThread->createEventConnection();
}
// ----------------------------------------------------------------------------
@@ -432,7 +432,6 @@ bool SurfaceFlinger::threadLoop()
} else {
// pretend we did the post
hw.compositionComplete();
- hw.waitForRefresh();
}
return true;
}
diff --git a/services/surfaceflinger/SurfaceTextureLayer.cpp b/services/surfaceflinger/SurfaceTextureLayer.cpp
index 259b937..49e8e63 100644
--- a/services/surfaceflinger/SurfaceTextureLayer.cpp
+++ b/services/surfaceflinger/SurfaceTextureLayer.cpp
@@ -94,6 +94,10 @@ status_t SurfaceTextureLayer::connect(int api,
*outTransform = orientation;
}
switch(api) {
+ case NATIVE_WINDOW_API_CPU:
+ // SurfaceTextureClient supports only 2 buffers for CPU connections
+ this->setBufferCountServer(2);
+ break;
case NATIVE_WINDOW_API_MEDIA:
case NATIVE_WINDOW_API_CAMERA:
// Camera preview and videos are rate-limited on the producer
generated by cgit v1.1 at 2025-08-17 03:54:38 +0000