mirror of
https://github.com/gnif/LookingGlass.git
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parent
ca02e1aba9
commit
c7330167cf
130
host/src/app.c
130
host/src/app.c
@ -62,6 +62,14 @@ static const struct LGMPQueueConfig POINTER_QUEUE_CONFIG =
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#define MAX_POINTER_SIZE (sizeof(KVMFRCursor) + (128 * 128 * 4))
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enum AppState
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{
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APP_STATE_RUNNING,
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APP_STATE_IDLE,
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APP_STATE_RESTART,
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APP_STATE_SHUTDOWN
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};
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struct app
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{
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PLGMPHost lgmp;
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@ -81,8 +89,7 @@ struct app
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CaptureInterface * iface;
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bool running;
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bool reinit;
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enum AppState state;
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LGTimer * lgmpTimer;
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LGThread * frameThread;
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};
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@ -95,7 +102,7 @@ static bool lgmpTimer(void * opaque)
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if ((status = lgmpHostProcess(app.lgmp)) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostProcess Failed: %s", lgmpStatusString(status));
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app.running = false;
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app.state = APP_STATE_SHUTDOWN;
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return false;
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}
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@ -111,7 +118,7 @@ static int frameThread(void * opaque)
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CaptureFrame frame = { 0 };
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const long pageSize = sysinfo_getPageSize();
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while(app.running)
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while(app.state == APP_STATE_RUNNING)
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{
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//wait until there is room in the queue
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if(lgmpHostQueuePending(app.frameQueue) == LGMP_Q_FRAME_LEN)
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@ -128,7 +135,7 @@ static int frameThread(void * opaque)
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case CAPTURE_RESULT_REINIT:
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{
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app.reinit = true;
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app.state = APP_STATE_RESTART;
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DEBUG_INFO("Frame thread reinit");
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return 0;
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}
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@ -205,7 +212,7 @@ static int frameThread(void * opaque)
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bool startThreads()
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{
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app.running = true;
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app.state = APP_STATE_RUNNING;
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if (!lgCreateThread("FrameThread", frameThread, NULL, &app.frameThread))
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{
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DEBUG_ERROR("Failed to create the frame thread");
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@ -219,8 +226,9 @@ bool stopThreads()
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{
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bool ok = true;
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app.running = false;
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app.iface->stop();
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if (app.state != APP_STATE_SHUTDOWN)
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app.state = APP_STATE_IDLE;
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if (app.frameThread && !lgJoinThread(app.frameThread, NULL))
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{
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@ -234,7 +242,14 @@ bool stopThreads()
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static bool captureStart()
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{
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DEBUG_INFO("Using : %s", app.iface->getName());
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if (app.state == APP_STATE_IDLE)
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{
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if (!app.iface->init())
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{
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DEBUG_ERROR("Initialize the capture device");
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return false;
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}
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}
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const unsigned int maxFrameSize = app.iface->getMaxFrameSize();
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if (maxFrameSize > app.maxFrameSize)
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@ -248,31 +263,33 @@ static bool captureStart()
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return startThreads();
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}
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static bool captureRestart()
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static bool captureStop()
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{
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DEBUG_INFO("==== [ Capture Restart ] ====");
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DEBUG_INFO("==== [ Capture Stop ] ====");
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if (!stopThreads())
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return false;
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if (!app.iface->deinit() || !app.iface->init())
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if (!app.iface->deinit())
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{
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DEBUG_ERROR("Failed to reinitialize the capture device");
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DEBUG_ERROR("Failed to deinitialize the capture device");
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return false;
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}
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if (!captureStart())
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return false;
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return true;
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}
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static bool captureRestart()
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{
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return captureStop() && captureStart();
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}
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bool captureGetPointerBuffer(void ** data, uint32_t * size)
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{
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// spin until there is room
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while(lgmpHostQueuePending(app.pointerQueue) == LGMP_Q_POINTER_LEN)
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{
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usleep(1);
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if (!app.running)
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if (app.state == APP_STATE_RUNNING)
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return false;
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}
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@ -522,6 +539,9 @@ int app_main(int argc, char * argv[])
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goto fail;
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}
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DEBUG_INFO("Using : %s", iface->getName());
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app.state = APP_STATE_RUNNING;
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app.iface = iface;
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LG_LOCK_INIT(app.pointerLock);
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@ -532,50 +552,66 @@ int app_main(int argc, char * argv[])
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goto fail;
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}
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if (!captureStart())
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while(app.state != APP_STATE_SHUTDOWN)
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{
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exitcode = -1;
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goto exit;
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}
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while(app.running)
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{
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if (app.reinit && !captureRestart())
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if(lgmpHostQueueHasSubs(app.pointerQueue) ||
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lgmpHostQueueHasSubs(app.frameQueue))
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{
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exitcode = -1;
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goto exit;
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if (!captureStart())
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{
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exitcode = -1;
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goto exit;
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}
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}
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app.reinit = false;
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if (lgmpHostQueueNewSubs(app.pointerQueue) > 0)
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else
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{
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LG_LOCK(app.pointerLock);
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sendPointer(true);
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LG_UNLOCK(app.pointerLock);
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usleep(100);
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continue;
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}
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switch(iface->capture())
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while(app.state != APP_STATE_SHUTDOWN && (
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lgmpHostQueueHasSubs(app.pointerQueue) ||
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lgmpHostQueueHasSubs(app.frameQueue)))
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{
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case CAPTURE_RESULT_OK:
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break;
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case CAPTURE_RESULT_TIMEOUT:
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continue;
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case CAPTURE_RESULT_REINIT:
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if (app.state == APP_STATE_RESTART)
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{
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if (!captureRestart())
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{
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exitcode = -1;
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goto exit;
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}
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app.reinit = false;
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continue;
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app.state = APP_STATE_RUNNING;
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}
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case CAPTURE_RESULT_ERROR:
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DEBUG_ERROR("Capture interface reported a fatal error");
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exitcode = -1;
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goto finish;
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if (lgmpHostQueueNewSubs(app.pointerQueue) > 0)
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{
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LG_LOCK(app.pointerLock);
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sendPointer(true);
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LG_UNLOCK(app.pointerLock);
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}
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switch(iface->capture())
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{
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case CAPTURE_RESULT_OK:
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break;
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case CAPTURE_RESULT_TIMEOUT:
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continue;
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case CAPTURE_RESULT_REINIT:
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app.state = APP_STATE_RESTART;
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continue;
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case CAPTURE_RESULT_ERROR:
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DEBUG_ERROR("Capture interface reported a fatal error");
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exitcode = -1;
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goto finish;
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}
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}
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if (app.state != APP_STATE_SHUTDOWN)
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DEBUG_INFO("No subscribers, going to sleep...");
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captureStop();
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}
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finish:
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@ -602,5 +638,5 @@ fail:
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void app_quit()
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{
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app.running = false;
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app.state = APP_STATE_SHUTDOWN;
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}
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@ -1 +1 @@
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Subproject commit 7d3b8a1d8b8a24f3812fb250b6e853f2c37ec483
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Subproject commit 2a1477550cc122dcac8af7016ac5f15dec2e139a
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