Java 类org.lwjgl.openal.ALCCapabilities 实例源码

private void initialize(){
    device = alcOpenDevice((ByteBuffer)null);
    if(device == 0L){
        Application.error("Unable to open default audio device");
        return;
    }

    ALCCapabilities deviceCaps = ALC.createCapabilities(device);

    if(!deviceCaps.OpenALC10){
        Application.error("OpenALC10 Unsupported");
        return;
    }


    context = alcCreateContext(device, (IntBuffer)null);
    if(context == 0L){
        Application.error("Unable to create ALC Context");
        return;
    }

    ALC10.alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public SoundPlayer() {
    this.device = ALC10.alcOpenDevice((ByteBuffer) null);
    if (this.device == 0) {
        throw new IllegalStateException("Failed to open the default device.");
    }
    this.context = ALC10.alcCreateContext(this.device, (IntBuffer) null);
    if (this.context == 0) {
        throw new IllegalStateException("no context?");
    }
    ALC10.alcMakeContextCurrent(this.context);
    ALCCapabilities deviceCaps = ALC.createCapabilities(this.device);
    AL.createCapabilities(deviceCaps);
    String deviceSpecifier = ALC10.alcGetString(this.device, ALC10.ALC_DEVICE_SPECIFIER);
    System.err.println("Using device " + deviceSpecifier);
    System.out.println("ALC_FREQUENCY: " + alcGetInteger(this.device, ALC_FREQUENCY) + "Hz");
    System.out.println("ALC_REFRESH: " + alcGetInteger(this.device, ALC_REFRESH) + "Hz");
    System.out.println("ALC_SYNC: " + (alcGetInteger(this.device, ALC_SYNC) == ALC_TRUE));
    System.out.println("ALC_MONO_SOURCES: " + alcGetInteger(this.device, ALC_MONO_SOURCES));
    System.out.println("ALC_STEREO_SOURCES: " + alcGetInteger(this.device, ALC_STEREO_SOURCES));
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public static void init()
{
    mainGain = 0.05f;

    device = alcOpenDevice((ByteBuffer)null);
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);

    context = alcCreateContext(device, (IntBuffer)null);
    alcMakeContextCurrent(context);
    createCapabilities(deviceCaps);

    audioPlayers = new ArrayList<>();

    alDistanceModel(AL_LINEAR_DISTANCE_CLAMPED);
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

public void init() throws Exception {
    this.device = alcOpenDevice((ByteBuffer) null);
    if (device == NULL) {
        throw new IllegalStateException("Failed to open the default OpenAL device.");
    }
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    this.context = alcCreateContext(device, (IntBuffer) null);
    if (context == NULL) {
        throw new IllegalStateException("Failed to create OpenAL context.");
    }
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);
}

LwjglAudioDevice()
{
    device = alcOpenDevice((ByteBuffer) null);
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);

    context = alcCreateContext(device, (IntBuffer) null);
    alcMakeContextCurrent(context);
    AL.createCapabilities(deviceCaps);

    SilenceEngine.eventManager.addDisposeHandler(this::cleanUp);
}

public ALSoundEnvironment() {
    device = alcOpenDevice((ByteBuffer) null);
    ALCCapabilities deviceCaps = ALC.createCapabilities(device);
    context = alcCreateContext(device, (int[]) null);

    if (!alcMakeContextCurrent(context)) {
        System.err.println("Failed to make context current.");
    }
    AL.createCapabilities(deviceCaps);

    setDistanceModel(DistanceModel.InverseDistance);
}

public static void main(String[] args) {
    System.setProperty("org.lwjgl.librarypath", new File("natives/windows").getAbsolutePath());
    String deviceName = ALC10.alcGetString(0, ALC10.ALC_DEFAULT_DEVICE_SPECIFIER);
    long device = ALC10.alcOpenDevice(deviceName);
    long context = ALC10.alcCreateContext(device, new int[] {0});
    ALC10.alcMakeContextCurrent(context);
    ALCCapabilities alcCaps = ALC.createCapabilities(device);
    ALCapabilities alCaps = AL.createCapabilities(alcCaps);

    if (alCaps.OpenAL10) {
        String file = "C:\\Users\\Isaac\\Desktop\\workspace\\assets\\audio\\gunshot2.ogg";

        MemoryStack.stackPush();
        IntBuffer channelsBuf = MemoryStack.stackMallocInt(1);
        MemoryStack.stackPush();
        IntBuffer sampleRateBuf = MemoryStack.stackMallocInt(1);

        ShortBuffer audioBuffer = STBVorbis.stb_vorbis_decode_filename(file, channelsBuf, sampleRateBuf);

        int channels = channelsBuf.get();
        int sampleRate = sampleRateBuf.get();

        MemoryStack.stackPop();
        MemoryStack.stackPop();

        int format = -1;
        if (channels == 1) {
            format = AL10.AL_FORMAT_MONO16;
        } else if (channels == 2) {
            format = AL10.AL_FORMAT_STEREO16;
        }

        int buffer = AL10.alGenBuffers();

        AL10.alBufferData(buffer, format, audioBuffer, sampleRate);

        Stdlib.free(audioBuffer);

        int[] sources = new int[4];
        AL10.alGenSources(sources);

        for (int source : sources) {
            AL10.alSourcei(source, AL10.AL_BUFFER, buffer);
            AL10.alSourcei(source, AL10.AL_LOOPING, AL10.AL_TRUE);
        }

        float length = (float) (AL10.alGetBufferi(buffer, AL10.AL_SIZE) / 2 / channels) / sampleRate;

        try {
            AL10.alSourcePlay(sources[0]);
            Thread.sleep((long) (length * 250));
            AL10.alSourcePlay(sources[1]);
            Thread.sleep((long) (length * 250));
            AL10.alSourcePlay(sources[2]);
            Thread.sleep((long) (length * 250));
            AL10.alSourcePlay(sources[3]);
        } catch (InterruptedException e) {
            e.printStackTrace();
        } finally {}

        new Scanner(System.in).nextLine();

        AL10.alSourceStopv(sources);
        AL10.alDeleteSources(sources);
        AL10.alDeleteBuffers(buffer);
    }

    ALC10.alcDestroyContext(context);
    ALC10.alcCloseDevice(device);
    ALC.destroy();
}