Java EFX10.alGenAuxiliaryEffectSlots方法代码示例

import org.lwjgl.openal.EFX10; //导入方法依赖的package包/类
private static void setupEFX()
{
	//Get current context and device
	ALCcontext currentContext = ALC10.alcGetCurrentContext();
	ALCdevice currentDevice = ALC10.alcGetContextsDevice(currentContext);		
	
	if (ALC10.alcIsExtensionPresent(currentDevice, "ALC_EXT_EFX"))
	{
		log("EFX Extension recognized.");
	}
	else
	{
		logError("EFX Extension not found on current device. Aborting.");
		return;
	}
	
	//Create auxiliary effect slots
	auxFXSlot0 = EFX10.alGenAuxiliaryEffectSlots();
	log("Aux slot " + auxFXSlot0 + " created");
	EFX10.alAuxiliaryEffectSloti(auxFXSlot0, EFX10.AL_EFFECTSLOT_AUXILIARY_SEND_AUTO, AL10.AL_TRUE);
	
	auxFXSlot1 = EFX10.alGenAuxiliaryEffectSlots();
	log("Aux slot " + auxFXSlot1 + " created");
	EFX10.alAuxiliaryEffectSloti(auxFXSlot1, EFX10.AL_EFFECTSLOT_AUXILIARY_SEND_AUTO, AL10.AL_TRUE);
	
	auxFXSlot2 = EFX10.alGenAuxiliaryEffectSlots();
	log("Aux slot " + auxFXSlot2 + " created");
	EFX10.alAuxiliaryEffectSloti(auxFXSlot2, EFX10.AL_EFFECTSLOT_AUXILIARY_SEND_AUTO, AL10.AL_TRUE);
	
	auxFXSlot3 = EFX10.alGenAuxiliaryEffectSlots();
	log("Aux slot " + auxFXSlot3 + " created");
	EFX10.alAuxiliaryEffectSloti(auxFXSlot3, EFX10.AL_EFFECTSLOT_AUXILIARY_SEND_AUTO, AL10.AL_TRUE);	
	checkErrorLog("Failed creating auxiliary effect slots!");
	
	
	//Create effect objects
	reverb0 = EFX10.alGenEffects();												//Create effect object
	EFX10.alEffecti(reverb0, EFX10.AL_EFFECT_TYPE, EFX10.AL_EFFECT_EAXREVERB);		//Set effect object to be reverb
	checkErrorLog("Failed creating reverb effect slot 0!");
	reverb1 = EFX10.alGenEffects();												//Create effect object
	EFX10.alEffecti(reverb1, EFX10.AL_EFFECT_TYPE, EFX10.AL_EFFECT_EAXREVERB);		//Set effect object to be reverb
	checkErrorLog("Failed creating reverb effect slot 1!");
	reverb2 = EFX10.alGenEffects();												//Create effect object
	EFX10.alEffecti(reverb2, EFX10.AL_EFFECT_TYPE, EFX10.AL_EFFECT_EAXREVERB);		//Set effect object to be reverb
	checkErrorLog("Failed creating reverb effect slot 2!");
	reverb3 = EFX10.alGenEffects();												//Create effect object
	EFX10.alEffecti(reverb3, EFX10.AL_EFFECT_TYPE, EFX10.AL_EFFECT_EAXREVERB);		//Set effect object to be reverb
	checkErrorLog("Failed creating reverb effect slot 3!");
	
	//Create filters
	directFilter0 = EFX10.alGenFilters();
	EFX10.alFilteri(directFilter0, EFX10.AL_FILTER_TYPE, EFX10.AL_FILTER_LOWPASS);
	
	sendFilter0 = EFX10.alGenFilters();
	EFX10.alFilteri(sendFilter0, EFX10.AL_FILTER_TYPE, EFX10.AL_FILTER_LOWPASS);
	
	sendFilter1 = EFX10.alGenFilters();
	EFX10.alFilteri(sendFilter1, EFX10.AL_FILTER_TYPE, EFX10.AL_FILTER_LOWPASS);
	
	sendFilter2 = EFX10.alGenFilters();
	EFX10.alFilteri(sendFilter2, EFX10.AL_FILTER_TYPE, EFX10.AL_FILTER_LOWPASS);
	
	sendFilter3 = EFX10.alGenFilters();
	EFX10.alFilteri(sendFilter3, EFX10.AL_FILTER_TYPE, EFX10.AL_FILTER_LOWPASS);
	checkErrorLog("Error creating lowpass filters!");
	
	applyConfigChanges();
	
	//setReverbParams(ReverbParams.getReverb0(), auxFXSlot0, reverb0);		//Set the global reverb parameters and apply them to the effect and effectslot		
	//setReverbParams(ReverbParams.getReverb1(), auxFXSlot1, reverb1);		//Set the global reverb parameters and apply them to the effect and effectslot		
	//setReverbParams(ReverbParams.getReverb2(), auxFXSlot2, reverb2);		//Set the global reverb parameters and apply them to the effect and effectslot		
	//setReverbParams(ReverbParams.getReverb3(), auxFXSlot3, reverb3);		//Set the global reverb parameters and apply them to the effect and effectslot		
}
 

import org.lwjgl.openal.EFX10; //导入方法依赖的package包/类
/**
 * Plays a sound with various effects applied to it.
 */
private static void playbackTest() throws Exception {
    setupEfx();

    // Create a source and buffer audio data
    final int source = AL10.alGenSources();
    final int buffer = AL10.alGenBuffers();
    WaveData waveFile = WaveData.create("Footsteps.wav");
    if (waveFile == null) {
        System.out.println("Failed to load Footsteps.wav! Skipping playback test.");
        AL.destroy();
        return;
    }
    AL10.alBufferData(buffer, waveFile.format, waveFile.data, waveFile.samplerate);
    waveFile.dispose();
    AL10.alSourcei(source, AL10.AL_BUFFER, buffer);
    AL10.alSourcei(source, AL10.AL_LOOPING, AL10.AL_TRUE);

    System.out.println("Playing sound unaffected by EFX ...");
    AL10.alSourcePlay(source);
    Thread.sleep(7500);

    // Add reverb effect
    final int effectSlot = EFX10.alGenAuxiliaryEffectSlots();
    final int reverbEffect = EFX10.alGenEffects();
    EFX10.alEffecti(reverbEffect, EFX10.AL_EFFECT_TYPE, EFX10.AL_EFFECT_REVERB);
    EFX10.alEffectf(reverbEffect, EFX10.AL_REVERB_DECAY_TIME, 5.0f);
    EFX10.alAuxiliaryEffectSloti(effectSlot, EFX10.AL_EFFECTSLOT_EFFECT, reverbEffect);
    AL11.alSource3i(source, EFX10.AL_AUXILIARY_SEND_FILTER, effectSlot, 0,
            EFX10.AL_FILTER_NULL);

    System.out.println("Playing sound with reverb ...");
    AL10.alSourcePlay(source);
    Thread.sleep(7500);

    // Add low-pass filter directly to source
    final int filter = EFX10.alGenFilters();
    EFX10.alFilteri(filter, EFX10.AL_FILTER_TYPE, EFX10.AL_FILTER_LOWPASS);
    EFX10.alFilterf(filter, EFX10.AL_LOWPASS_GAIN, 0.5f);
    EFX10.alFilterf(filter, EFX10.AL_LOWPASS_GAINHF, 0.5f);
    AL10.alSourcei(source, EFX10.AL_DIRECT_FILTER, filter);

    System.out.println("Playing sound with reverb and direct low pass filter ...");
    AL10.alSourcePlay(source);
    Thread.sleep(7500);
    AL10.alSourcei(source, EFX10.AL_DIRECT_FILTER, EFX10.AL_FILTER_NULL);

    // Add low-pass filter to source send
    //AL11.alSource3i(source, EFX10.AL_AUXILIARY_SEND_FILTER, effectSlot, 0, filter);
    //
    //System.out.println("Playing sound with reverb and aux send low pass filter ...");
    //AL10.alSourcePlay(source);
    //Thread.sleep(7500);

    // Cleanup
    AL11.alSource3i(source, EFX10.AL_AUXILIARY_SEND_FILTER, EFX10.AL_EFFECTSLOT_NULL, 0,
            EFX10.AL_FILTER_NULL);
    EFX10.alAuxiliaryEffectSloti(effectSlot, EFX10.AL_EFFECTSLOT_EFFECT, EFX10.AL_EFFECT_NULL);
    EFX10.alDeleteEffects(reverbEffect);
    EFX10.alDeleteFilters(filter);

    // Echo effect
    final int echoEffect = EFX10.alGenEffects();
    EFX10.alEffecti(echoEffect, EFX10.AL_EFFECT_TYPE, EFX10.AL_EFFECT_ECHO);
    //EFX10.alEffectf(echoEffect, EFX10.AL_ECHO_DELAY, 5.0f);
    EFX10.alAuxiliaryEffectSloti(effectSlot, EFX10.AL_EFFECTSLOT_EFFECT, echoEffect);
    AL11.alSource3i(source, EFX10.AL_AUXILIARY_SEND_FILTER, effectSlot, 0,
            EFX10.AL_FILTER_NULL);

    System.out.println("Playing sound with echo effect ...");
    AL10.alSourcePlay(source);
    Thread.sleep(7500);

    AL.destroy();
}