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Diffstat (limited to 'src/java/com/jogamp/openal/util/WAVLoader.java')
-rw-r--r-- | src/java/com/jogamp/openal/util/WAVLoader.java | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/java/com/jogamp/openal/util/WAVLoader.java b/src/java/com/jogamp/openal/util/WAVLoader.java new file mode 100644 index 0000000..4ee2305 --- /dev/null +++ b/src/java/com/jogamp/openal/util/WAVLoader.java @@ -0,0 +1,135 @@ +/** +* Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions are met: +* +* -Redistribution of source code must retain the above copyright notice, +* this list of conditions and the following disclaimer. +* +* -Redistribution 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 Sun Microsystems, Inc. or the names of contributors may +* be used to endorse or promote products derived from this software without +* specific prior written permission. +* +* This software is provided "AS IS," without a warranty of any kind. +* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING +* ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR +* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS +* LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A +* RESULT OF USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. +* IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT +* OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR +* PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, +* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS +* BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. +* +* You acknowledge that this software is not designed or intended for use in the +* design, construction, operation or maintenance of any nuclear facility. +*/ + +package com.jogamp.openal.util; + +import java.io.*; +import java.nio.*; +import java.nio.channels.*; +import javax.sound.sampled.*; + +import com.jogamp.openal.*; + +/** + * A Loader utility for (.wav) files. Creates a WAVData object containing the + * data used by the AL.alBufferData method. + * + * @author Athomas Goldberg + */ +public class WAVLoader implements ALConstants { + private static final int BUFFER_SIZE = 128000; + + /** + * This method loads a (.wav) file into a WAVData object. + * + * @param filename The name of the (.wav) file + * + * @return a WAVData object containing the audio data + * + * @throws UnsupportedAudioFileException if the format of the audio if not + * supported. + * @throws IOException If the file can no be found or some other IO error + * occurs + */ + public static WAVData loadFromFile(String filename) + throws UnsupportedAudioFileException, IOException { + WAVData result = null; + File soundFile = new File(filename); + AudioInputStream aIn = AudioSystem.getAudioInputStream(soundFile); + return readFromStream(aIn); + } + + /** + * This method loads a (.wav) file into a WAVData object. + * + * @param stream An InputStream for the .WAV file. + * + * @return a WAVData object containing the audio data + * + * @throws UnsupportedAudioFileException if the format of the audio if not + * supported. + * @throws IOException If the file can no be found or some other IO error + * occurs + */ + public static WAVData loadFromStream(InputStream stream) + throws UnsupportedAudioFileException, IOException { + WAVData result = null; + AudioInputStream aIn = AudioSystem.getAudioInputStream(stream); + return readFromStream(aIn); + } + + + private static WAVData readFromStream(AudioInputStream aIn) + throws UnsupportedAudioFileException, IOException { + ReadableByteChannel aChannel = Channels.newChannel(aIn); + AudioFormat fmt = aIn.getFormat(); + int numChannels = fmt.getChannels(); + int bits = fmt.getSampleSizeInBits(); + int format = AL_FORMAT_MONO8; + + if ((bits == 8) && (numChannels == 1)) { + format = AL_FORMAT_MONO8; + } else if ((bits == 16) && (numChannels == 1)) { + format = AL_FORMAT_MONO16; + } else if ((bits == 8) && (numChannels == 2)) { + format = AL_FORMAT_STEREO8; + } else if ((bits == 16) && (numChannels == 2)) { + format = AL_FORMAT_STEREO16; + } + + int freq = Math.round(fmt.getSampleRate()); + int size = aIn.available(); + ByteBuffer buffer = ByteBuffer.allocateDirect(size); + while (buffer.remaining() > 0) { + aChannel.read(buffer); + } + buffer.rewind(); + + // Must byte swap on big endian platforms + // Thanks to swpalmer on javagaming.org forums for hint at fix + if ((bits == 16) && (ByteOrder.nativeOrder() == ByteOrder.BIG_ENDIAN)) { + int len = buffer.remaining(); + for (int i = 0; i < len; i += 2) { + byte a = buffer.get(i); + byte b = buffer.get(i+1); + buffer.put(i, b); + buffer.put(i+1, a); + } + } + + WAVData result = new WAVData(buffer, format, size, freq, false); + aIn.close(); + + return result; + } +} |