/***********************************************************
* Name: dispmanx_notify_handle
*
* Arguments: not used
*
* Description: this purely notifies the update callback
*
* Returns: does not return
*
***********************************************************/
static void *dispmanx_notify_func( void *arg ) {
int32_t success;
VCOS_STATUS_T status;
(void)arg;
while (1) {
DISPMANX_UPDATE_HANDLE_T handle;
status = vcos_event_wait(&dispmanx_notify_available_event);
if (status != VCOS_SUCCESS || !dispmanx_client.initialised)
break;
success = vchi_msg_dequeue( dispmanx_client.notify_handle[0], dispmanx_client.notify_buffer, sizeof(dispmanx_client.notify_buffer), &dispmanx_client.notify_length, VCHI_FLAGS_NONE );
if (success != 0)
continue;
handle = (DISPMANX_UPDATE_HANDLE_T)dispmanx_client.notify_buffer[0];
if (handle) {
// This is the response to an update submit
// Decrement the use count - the corresponding "use" is in vc_dispmanx_update_submit.
vchi_service_release(dispmanx_client.notify_handle[0]);
if (dispmanx_client.update_callback ) {
vcos_assert( dispmanx_client.pending_update_handle == handle);
dispmanx_client.update_callback(handle, dispmanx_client.update_callback_param);
}
} else {
// This is a vsync notification
if (dispmanx_client.vsync_callback ) {
dispmanx_client.vsync_callback(handle, dispmanx_client.vsync_callback_param);
}
}
}
return 0;
}
/***********************************************************
* Name: dispmanx_notify_handle
*
* Arguments: not used
*
* Description: this purely notifies the update callback
*
* Returns: does not return
*
***********************************************************/
static void *dispmanx_notify_func( void *arg ) {
int32_t success;
VCOS_STATUS_T status;
(void)arg;
while(1) {
status = vcos_event_wait(&dispmanx_notify_available_event);
if(status != VCOS_SUCCESS || !dispmanx_client.initialised)
break;
success = vchi_msg_dequeue( dispmanx_client.notify_handle[0], dispmanx_client.notify_buffer, sizeof(dispmanx_client.notify_buffer), &dispmanx_client.notify_length, VCHI_FLAGS_NONE );
vchi_service_release(dispmanx_client.notify_handle[0]); // corresponding use in vc_dispmanx_update_submit
if(success != 0)
continue;
if(dispmanx_client.update_callback ) {
vcos_assert( dispmanx_client.pending_update_handle == (DISPMANX_UPDATE_HANDLE_T) dispmanx_client.notify_buffer[1]);
dispmanx_client.update_callback((DISPMANX_UPDATE_HANDLE_T) dispmanx_client.notify_buffer[1], dispmanx_client.update_callback_param);
}
}
return 0;
}