/*
* Copyright (c) 2002-2008 LWJGL Project
* All rights reserved.
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* modification, are permitted provided that the following conditions are
* met:
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* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'LWJGL' nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.lwjgl.test.applet;
import java.nio.IntBuffer;
import org.lwjgl.BufferUtils;
import org.lwjgl.LWJGLException;
import org.lwjgl.openal.AL;
import org.lwjgl.openal.AL10;
import org.lwjgl.opengl.AWTGLCanvas;
import org.lwjgl.opengl.Display;
import org.lwjgl.util.WaveData;
import static org.lwjgl.opengl.GL11.*;
public class OpenAL extends AWTGLCanvas implements Test {
float angle;
// create 1 buffer and 1 source
IntBuffer buffers = BufferUtils.createIntBuffer(1);
IntBuffer sources = BufferUtils.createIntBuffer(1);
public OpenAL() throws LWJGLException {
try {
AL.create();
} catch (Exception e) {
System.out.println("Unable to create OpenAL.\nPlease make sure that OpenAL is available on this system. Exception: " + e);
return;
}
Thread t = new Thread() {
public void run() {
while (true) {
if (isVisible())
repaint();
Display.sync(60);
}
}
};
t.setDaemon(true);
t.start();
}
private void playOpenAL() {
int lastError;
// al generate buffers and sources
buffers.position(0).limit(1);
AL10.alGenBuffers(buffers);
if((lastError = AL10.alGetError()) != AL10.AL_NO_ERROR) {
exit(lastError);
}
sources.position(0).limit(1);
AL10.alGenSources(sources);
if((lastError = AL10.alGetError()) != AL10.AL_NO_ERROR) {
exit(lastError);
}
// load wave data from buffer
WaveData wavefile = WaveData.create(getClass().getClassLoader().getResourceAsStream("Footsteps.wav"));
//copy to buffers
AL10.alBufferData(buffers.get(0), wavefile.format, wavefile.data, wavefile.samplerate);
//unload file again
wavefile.dispose();
if((lastError = AL10.alGetError()) != AL10.AL_NO_ERROR) {
exit(lastError);
}
//set up source input
AL10.alSourcei(sources.get(0), AL10.AL_BUFFER, buffers.get(0));
if((lastError = AL10.alGetError()) != AL10.AL_NO_ERROR) {
exit(lastError);
}
//lets loop the sound
AL10.alSourcei(sources.get(0), AL10.AL_LOOPING, AL10.AL_TRUE);
if((lastError = AL10.alGetError()) != AL10.AL_NO_ERROR) {
exit(lastError);
}
//play source 0
AL10.alSourcePlay(sources.get(0));
if((lastError = AL10.alGetError()) != AL10.AL_NO_ERROR) {
exit(lastError);
}
}
private void exit(int error) {
System.out.println("OpenAL Error: " + AL10.alGetString(error));
}
public void paintGL() {
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION_MATRIX);
glLoadIdentity();
glOrtho(0, 640, 0, 480, 1, -1);
glMatrixMode(GL_MODELVIEW_MATRIX);
glPushMatrix();
glTranslatef(320, 240, 0.0f);
glRotatef(angle, 0, 0, 1.0f);
glBegin(GL_QUADS);
glVertex2i(-50, -50);
glVertex2i(50, -50);
glVertex2i(50, 50);
glVertex2i(-50, 50);
glEnd();
glPopMatrix();
angle += 1;
try {
swapBuffers();
} catch (Exception e) {/*OK*/
}
}
public void start() {
playOpenAL();
}
public void stop() {
int lastError;
//stop source 0
AL10.alSourceStop(sources.get(0));
if((lastError = AL10.alGetError()) != AL10.AL_NO_ERROR) {
exit(lastError);
}
//delete buffers and sources
sources.position(0).limit(1);
AL10.alDeleteSources(sources);
if((lastError = AL10.alGetError()) != AL10.AL_NO_ERROR) {
exit(lastError);
}
buffers.position(0).limit(1);
AL10.alDeleteBuffers(buffers);
if((lastError = AL10.alGetError()) != AL10.AL_NO_ERROR) {
exit(lastError);
}
AL.destroy();
}
}