Java Code Examples for org.lwjgl.openal.AL10#alDeleteBuffers()

/**
    * Play a mod or xm track streamed from the specified location
    * 
    * @param module The moudle to play back
    * @param source The OpenAL source to play the music on
    * @param start True if the music should be started
    * @param loop True if the track should be looped
    */
public void play(Module module, int source, boolean loop, boolean start) {
	this.source = source;
	this.loop = loop;
	this.module = module;
	done = false;
	
	ibxm = new IBXM(48000);
	ibxm.set_module(module);
	songDuration = ibxm.calculate_song_duration();

	if (bufferNames != null) {
		AL10.alSourceStop(source);
		bufferNames.flip();
		AL10.alDeleteBuffers(bufferNames);
	}
	
	bufferNames = BufferUtils.createIntBuffer(2);
	AL10.alGenBuffers(bufferNames);
	remainingBufferCount = 2;
	
	for (int i=0;i<2;i++) {
        stream(bufferNames.get(i));
	}
       AL10.alSourceQueueBuffers(source, bufferNames);
	AL10.alSourcef(source, AL10.AL_PITCH, 1.0f);
	AL10.alSourcef(source, AL10.AL_GAIN, 1.0f); 
	
	if (start) {
		AL10.alSourcePlay(source);
	}
}
 

/**
 * Stops and releases all sources, clears each of the specified Audio
 * buffers, destroys the OpenAL context, and resets SoundStore for future use.
 *
 * Calling SoundStore.get().init() will re-initialize the OpenAL context
 * after a call to destroyOpenAL (Note: AudioLoader.getXXX calls init for you).
 *
 * @author davedes (http://slick.ninjacave.com/forum/viewtopic.php?t=3920)
 */
private static void destroyOpenAL() {
	if (!trackExists())
		return;
	stop();

	try {
		// get Music object's (private) Audio object reference
		Field sound = player.getClass().getDeclaredField("sound");
		sound.setAccessible(true);
		Audio audio = (Audio) (sound.get(player));

		// first clear the sources allocated by SoundStore
		int max = SoundStore.get().getSourceCount();
		IntBuffer buf = BufferUtils.createIntBuffer(max);
		for (int i = 0; i < max; i++) {
			int source = SoundStore.get().getSource(i);
			buf.put(source);

			// stop and detach any buffers at this source
			AL10.alSourceStop(source);
			AL10.alSourcei(source, AL10.AL_BUFFER, 0);
		}
		buf.flip();
		AL10.alDeleteSources(buf);
		int exc = AL10.alGetError();
		if (exc != AL10.AL_NO_ERROR) {
			throw new SlickException(
					"Could not clear SoundStore sources, err: " + exc);
		}

		// delete any buffer data stored in memory, too...
		if (audio != null && audio.getBufferID() != 0) {
			buf = BufferUtils.createIntBuffer(1).put(audio.getBufferID());
			buf.flip();
			AL10.alDeleteBuffers(buf);
			exc = AL10.alGetError();
			if (exc != AL10.AL_NO_ERROR) {
				throw new SlickException("Could not clear buffer "
						+ audio.getBufferID()
						+ ", err: "+exc);
			}
		}

		// clear OpenAL
		AL.destroy();

		// reset SoundStore so that next time we create a Sound/Music, it will reinit
		SoundStore.get().clear();

		player = null;
	} catch (Exception e) {
		softErr(e, "Failed to destroy OpenAL");
	}
}
 

public void destroy()
{
    AL10.alDeleteSources(source);
    AL10.alDeleteBuffers(buffer);
}
 

protected final void doDelete() {
	if (AL.isCreated()) {
		al_buffers.clear();
		AL10.alDeleteBuffers(al_buffers);
	}
}
 

@Override
public void alDeleteBuffers(int numBuffers, IntBuffer buffers) {
    if (buffers.position() != 0) throw new AssertionError();
    if (buffers.limit() != numBuffers) throw new AssertionError();
    AL10.alDeleteBuffers(buffers);
}
 

@Override
public void alDeleteBuffers(final int numBuffers, final IntBuffer buffers) {
    if (buffers.position() != 0) throw new AssertionError();
    if (buffers.limit() != numBuffers) throw new AssertionError();
    AL10.alDeleteBuffers(buffers);
}
 

/**
 * Stops and releases all sources, clears each of the specified Audio
 * buffers, destroys the OpenAL context, and resets SoundStore for future use.
 *
 * Calling SoundStore.get().init() will re-initialize the OpenAL context
 * after a call to destroyOpenAL (Note: AudioLoader.getXXX calls init for you).
 *
 * @author davedes (http://slick.ninjacave.com/forum/viewtopic.php?t=3920)
 */
private static void destroyOpenAL() {
	if (!trackExists())
		return;
	stop();

	if (!AL.isCreated())
		return;

	try {
		// get Music object's (private) Audio object reference
		Field sound = player.getClass().getDeclaredField("sound");
		sound.setAccessible(true);
		Audio audio = (Audio) (sound.get(player));

		// first clear the sources allocated by SoundStore
		int max = SoundStore.get().getSourceCount();
		IntBuffer buf = BufferUtils.createIntBuffer(max);
		for (int i = 0; i < max; i++) {
			int source = SoundStore.get().getSource(i);
			buf.put(source);

			// stop and detach any buffers at this source
			AL10.alSourceStop(source);
			AL10.alSourcei(source, AL10.AL_BUFFER, 0);
		}
		buf.flip();
		AL10.alDeleteSources(buf);
		int exc = AL10.alGetError();
		if (exc != AL10.AL_NO_ERROR) {
			throw new SlickException(
					"Could not clear SoundStore sources, err: " + exc);
		}

		// delete any buffer data stored in memory, too...
		if (audio != null && audio.getBufferID() != 0) {
			buf = BufferUtils.createIntBuffer(1).put(audio.getBufferID());
			buf.flip();
			AL10.alDeleteBuffers(buf);
			exc = AL10.alGetError();
			if (exc != AL10.AL_NO_ERROR) {
				throw new SlickException("Could not clear buffer "
						+ audio.getBufferID()
						+ ", err: "+exc);
			}
		}

		// clear OpenAL
		AL.destroy();

		// reset SoundStore so that next time we create a Sound/Music, it will reinit
		SoundStore.get().clear();

		player = null;
	} catch (Exception e) {
		ErrorHandler.error("Failed to destroy the OpenAL context.", e, true);
	}
}