C2BqPool: Expire waiters on Surface switching
Wake up and expire C2Fence waiters for the old Surface when the Surface
is switched to a new Surface.
Bug: 235330851
Change-Id: I8f0a9adace5f53fe7f47179b425bb899abcec64f
diff --git a/media/codec2/hal/client/client.cpp b/media/codec2/hal/client/client.cpp
index 09452c4..f5128ca 100644
--- a/media/codec2/hal/client/client.cpp
+++ b/media/codec2/hal/client/client.cpp
@@ -1722,6 +1722,8 @@
static_cast<uint64_t>(blockPoolId),
bqId == 0 ? nullHgbp : igbp);
+ mOutputBufferQueue->expireOldWaiters();
+
if (!transStatus.isOk()) {
LOG(ERROR) << "setOutputSurface -- transaction failed.";
return C2_TRANSACTION_FAILED;
@@ -1763,6 +1765,7 @@
<< status << ".";
}
}
+ mOutputBufferQueue->expireOldWaiters();
}
c2_status_t Codec2Client::Component::connectToInputSurface(
diff --git a/media/codec2/hal/client/include/codec2/hidl/output.h b/media/codec2/hal/client/include/codec2/hidl/output.h
index a13edf3..c208df0 100644
--- a/media/codec2/hal/client/include/codec2/hidl/output.h
+++ b/media/codec2/hal/client/include/codec2/hidl/output.h
@@ -50,6 +50,10 @@
int maxDequeueBufferCount,
std::shared_ptr<V1_2::SurfaceSyncObj> *syncObj);
+ // If there are waiters to allocate from the old surface, wake up and expire
+ // them.
+ void expireOldWaiters();
+
// Stop using the current output surface. Pending buffer opeations will not
// perform anymore.
void stop();
@@ -86,6 +90,8 @@
std::weak_ptr<_C2BlockPoolData> mPoolDatas[BufferQueueDefs::NUM_BUFFER_SLOTS];
std::shared_ptr<C2SurfaceSyncMemory> mSyncMem;
bool mStopped;
+ std::mutex mOldMutex;
+ std::shared_ptr<C2SurfaceSyncMemory> mOldMem;
bool registerBuffer(const C2ConstGraphicBlock& block);
};
diff --git a/media/codec2/hal/client/output.cpp b/media/codec2/hal/client/output.cpp
index f789030..6aaf9ab 100644
--- a/media/codec2/hal/client/output.cpp
+++ b/media/codec2/hal/client/output.cpp
@@ -217,6 +217,7 @@
sp<GraphicBuffer> buffers[BufferQueueDefs::NUM_BUFFER_SLOTS];
std::weak_ptr<_C2BlockPoolData>
poolDatas[BufferQueueDefs::NUM_BUFFER_SLOTS];
+ std::shared_ptr<C2SurfaceSyncMemory> oldMem;
{
std::scoped_lock<std::mutex> l(mMutex);
bool stopped = mStopped;
@@ -238,7 +239,7 @@
}
return false;
}
- std::shared_ptr<C2SurfaceSyncMemory> oldMem = mSyncMem;
+ oldMem = mSyncMem;
C2SyncVariables *oldSync = mSyncMem ? mSyncMem->mem() : nullptr;
if (oldSync) {
oldSync->lock();
@@ -314,11 +315,26 @@
newSync->unlock();
}
}
+ {
+ std::scoped_lock<std::mutex> l(mOldMutex);
+ mOldMem = oldMem;
+ }
ALOGD("remote graphic buffer migration %zu/%zu",
success, tryNum);
return true;
}
+void OutputBufferQueue::expireOldWaiters() {
+ std::scoped_lock<std::mutex> l(mOldMutex);
+ if (mOldMem) {
+ C2SyncVariables *oldSync = mOldMem->mem();
+ if (oldSync) {
+ oldSync->notifyAll();
+ }
+ mOldMem.reset();
+ }
+}
+
void OutputBufferQueue::stop() {
std::scoped_lock<std::mutex> l(mMutex);
mStopped = true;
diff --git a/media/codec2/vndk/include/C2SurfaceSyncObj.h b/media/codec2/vndk/include/C2SurfaceSyncObj.h
index d858f27..b193b4a 100644
--- a/media/codec2/vndk/include/C2SurfaceSyncObj.h
+++ b/media/codec2/vndk/include/C2SurfaceSyncObj.h
@@ -112,6 +112,11 @@
*/
c2_status_t waitForChange(uint32_t waitId, c2_nsecs_t timeoutNs);
+ /**
+ * Wake up and expire all waitors.
+ */
+ void notifyAll();
+
C2SyncVariables() {}
private:
diff --git a/media/codec2/vndk/platform/C2SurfaceSyncObj.cpp b/media/codec2/vndk/platform/C2SurfaceSyncObj.cpp
index bf4ca32..d55a3d8 100644
--- a/media/codec2/vndk/platform/C2SurfaceSyncObj.cpp
+++ b/media/codec2/vndk/platform/C2SurfaceSyncObj.cpp
@@ -244,6 +244,12 @@
return C2_BAD_VALUE;
}
+void C2SyncVariables::notifyAll() {
+ this->lock();
+ this->broadcast();
+ this->unlock();
+}
+
int C2SyncVariables::signal() {
mCond++;