ANativeWindowDisplayAdapter::~ANativeWindowDisplayAdapter() {
Semaphore sem;
TIUTILS::Message msg;
LOG_FUNCTION_NAME;
///The ANativeWindow object will get destroyed here
destroy();
///If Display thread exists
if (mDisplayThread.get()) {
///Kill the display thread
sem.Create();
msg.command = DisplayThread::DISPLAY_EXIT;
// Send the semaphore to signal once the command is completed
msg.arg1 = &sem;
///Post the message to display thread
mDisplayThread->msgQ().put(&msg);
///Wait for the ACK - implies that the thread is now started and waiting for frames
sem.Wait();
// Exit and cleanup the thread
mDisplayThread->requestExitAndWait();
// Delete the display thread
mDisplayThread.clear();
}
LOG_FUNCTION_NAME_EXIT;
}
int main()
{
cout << "Simple Serialization Illustration."<<endl;
sem.Create(0);
std::thread t1 (function1);
std::thread t2 (function2);
t1.join();
t2.join();
sem.Destroy();
cout << "Thank you executing my implementaion © to ashish modi. "<<endl;
}
ANativeWindowDisplayAdapter::~ANativeWindowDisplayAdapter()
{
Semaphore sem;
TIUTILS::Message msg;
LOG_FUNCTION_NAME;
///If Frame provider exists
if (mFrameProvider) {
// Unregister with the frame provider
mFrameProvider->disableFrameNotification(CameraFrame::ALL_FRAMES);
delete mFrameProvider;
mFrameProvider = NULL;
}
///The ANativeWindow object will get destroyed here
destroy();
///If Display thread exists
if(mDisplayThread.get())
{
///Kill the display thread
sem.Create();
msg.command = DisplayThread::DISPLAY_EXIT;
// Send the semaphore to signal once the command is completed
msg.arg1 = &sem;
///Post the message to display thread
mDisplayThread->msgQ().put(&msg);
///Wait for the ACK - implies that the thread is now started and waiting for frames
sem.Wait();
// Exit and cleanup the thread
mDisplayThread->requestExitAndWait();
// Delete the display thread
mDisplayThread.clear();
}
LOG_FUNCTION_NAME_EXIT;
}
int ANativeWindowDisplayAdapter::enableDisplay(int width, int height, struct timeval *refTime, S3DParameters *s3dParams)
{
Semaphore sem;
TIUTILS::Message msg;
LOG_FUNCTION_NAME;
if ( mDisplayEnabled )
{
LOGINFO("Display is already enabled");
LOG_FUNCTION_NAME_EXIT;
return NO_ERROR;
}
//Send START_DISPLAY COMMAND to display thread. Display thread will start and then wait for a message
sem.Create();
msg.command = DisplayThread::DISPLAY_START;
// Send the semaphore to signal once the command is completed
msg.arg1 = &sem;
///Post the message to display thread
mDisplayThread->msgQ().put(&msg);
///Wait for the ACK - implies that the thread is now started and waiting for frames
sem.Wait();
// Register with the frame provider for frames
mFrameProvider->enableFrameNotification(CameraFrame::PREVIEW_FRAME_SYNC);
mDisplayEnabled = true;
mPreviewWidth = width;
mPreviewHeight = height;
LOGINFO("mPreviewWidth = %d mPreviewHeight = %d", mPreviewWidth, mPreviewHeight);
LOG_FUNCTION_NAME_EXIT;
return NO_ERROR;
}
int ANativeWindowDisplayAdapter::disableDisplay(bool cancel_buffer) {
status_t ret = NO_ERROR;
GraphicBufferMapper &mapper = GraphicBufferMapper::get();
LOG_FUNCTION_NAME;
if (!mDisplayEnabled) {
LOGE("Display is already disabled");
LOG_FUNCTION_NAME_EXIT;
return ALREADY_EXISTS;
}
// Unregister with the frame provider here
if (NULL != mDisplayThread.get()) {
//Send STOP_DISPLAY COMMAND to display thread. Display thread will stop and dequeue all messages
// and then wait for message
Semaphore sem;
sem.Create();
TIUTILS::Message msg;
msg.command = DisplayThread::DISPLAY_STOP;
// Send the semaphore to signal once the command is completed
msg.arg1 = &sem;
///Post the message to display thread
mDisplayThread->msgQ().put(&msg);
///Wait for the ACK for display to be disabled
sem.Wait();
}
Mutex::Autolock lock(mLock);
{
///Reset the display enabled flag
mDisplayEnabled = false;
///Reset the offset values
mXOff = 0;
mYOff = 0;
///Reset the frame width and height values
mFrameWidth = 0;
mFrameHeight = 0;
mPreviewWidth = 0;
mPreviewHeight = 0;
if (cancel_buffer) {
// Return the buffers to ANativeWindow here, the mFramesWithCameraAdapterMap is also cleared inside
returnBuffersToWindow();
} else {
mANativeWindow = NULL;
// Clear the frames with camera adapter map
mFramesWithCameraAdapterMap.clear();
}
}
LOG_FUNCTION_NAME_EXIT;
return NO_ERROR;
}
