Esempio n. 1
0
        void IDualityBackend.Init()
        {
            AudioLibraryLoader.LoadAudioLibrary();

            // Initialize OpenTK, if not done yet
            DefaultOpenTKBackendPlugin.InitOpenTK();

            Log.Core.Write("Available devices:" + Environment.NewLine + "{0}",
                           AudioContext.AvailableDevices.ToString(d => d == AudioContext.DefaultDevice ? d + " (Default)" : d, "," + Environment.NewLine));

            // Create OpenAL audio context
            this.context = new AudioContext();
            Log.Core.Write("Current device: {0}", this.context.CurrentDevice);

            // Create extension interfaces
            try
            {
                this.extFx = new EffectsExtension();
                if (!this.extFx.IsInitialized)
                {
                    this.extFx = null;
                }
            }
            catch (Exception)
            {
                this.extFx = null;
            }

            activeInstance = this;

            // Log all OpenAL specs for diagnostic purposes
            LogOpenALSpecs();

            // Generate OpenAL source pool
            for (int i = 0; i < 256; i++)
            {
                int newSrc = AL.GenSource();
                if (!Backend.DefaultOpenTK.AudioBackend.CheckOpenALErrors(true))
                {
                    this.sourcePool.Push(newSrc);
                }
                else
                {
                    break;
                }
            }
            this.availSources = this.sourcePool.Count;
            Log.Core.Write("{0} sources available", this.sourcePool.Count);

            // Set up the streaming thread
            this.streamWorkerEnd           = false;
            this.streamWorkerQueue         = new List <NativeAudioSource>();
            this.streamWorkerQueueEvent    = new AutoResetEvent(false);
            this.streamWorker              = new Thread(ThreadStreamFunc);
            this.streamWorker.IsBackground = true;
            this.streamWorker.Start();
        }
Esempio n. 2
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        void IDualityBackend.Init()
        {
            AudioLibraryLoader.LoadAudioLibrary();

            Log.Core.Write("Available devices:" + Environment.NewLine + "{0}",
                           AudioContext.AvailableDevices.ToString(d => d == AudioContext.DefaultDevice ? d + " (Default)" : d, "," + Environment.NewLine));

            // Create OpenAL audio context
            this.context = new AudioContext();
            Log.Core.Write("Current device: {0}", this.context.CurrentDevice);

            // Generate OpenAL source pool
            for (int i = 0; i < 256; i++)
            {
                int newSrc = AL.GenSource();
                if (!Backend.DefaultOpenTK.AudioBackend.CheckOpenALErrors(true))
                {
                    this.sourcePool.Push(newSrc);
                }
                else
                {
                    break;
                }
            }
            this.availSources = this.sourcePool.Count;
            Log.Core.Write("{0} sources available", this.sourcePool.Count);

            // Set up the streaming thread
            this.streamWorkerEnd           = false;
            this.streamWorkerQueue         = new List <NativeAudioSource>();
            this.streamWorkerQueueEvent    = new AutoResetEvent(false);
            this.streamWorker              = new Thread(ThreadStreamFunc);
            this.streamWorker.IsBackground = true;
            this.streamWorker.Start();

            activeInstance = this;
        }
Esempio n. 3
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        void IDualityBackend.Shutdown()
        {
            // Shut down the streaming thread
            if (this.streamWorker != null)
            {
                this.streamWorkerEnd = true;
                if (!this.streamWorker.Join(1000))
                {
                    this.streamWorker.Abort();
                }
                this.streamWorkerQueueEvent.Dispose();
                this.streamWorkerEnd        = false;
                this.streamWorkerQueueEvent = null;
                this.streamWorkerQueue      = null;
                this.streamWorker           = null;
            }

            if (activeInstance == this)
            {
                activeInstance = null;
            }

            // Clear OpenAL source pool
            foreach (int alSource in this.sourcePool)
            {
                AL.DeleteSource(alSource);
            }

            // Shut down OpenAL context
            if (this.context != null)
            {
                this.context.Dispose();
                this.context = null;
            }

            AudioLibraryLoader.UnloadAudioLibrary();
        }