| /* |
| * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package com.sun.media.sound; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import javax.sound.sampled.AudioFormat; |
| import javax.sound.sampled.AudioInputStream; |
| import javax.sound.sampled.AudioSystem; |
| import javax.sound.sampled.AudioFormat.Encoding; |
| |
| /** |
| * Wavetable oscillator for pre-loaded data. |
| * |
| * @author Karl Helgason |
| */ |
| public final class ModelByteBufferWavetable implements ModelWavetable { |
| |
| private class Buffer8PlusInputStream extends InputStream { |
| |
| private final boolean bigendian; |
| private final int framesize_pc; |
| int pos = 0; |
| int pos2 = 0; |
| int markpos = 0; |
| int markpos2 = 0; |
| |
| Buffer8PlusInputStream() { |
| framesize_pc = format.getFrameSize() / format.getChannels(); |
| bigendian = format.isBigEndian(); |
| } |
| |
| public int read(byte[] b, int off, int len) throws IOException { |
| int avail = available(); |
| if (avail <= 0) |
| return -1; |
| if (len > avail) |
| len = avail; |
| byte[] buff1 = buffer.array(); |
| byte[] buff2 = buffer8.array(); |
| pos += buffer.arrayOffset(); |
| pos2 += buffer8.arrayOffset(); |
| if (bigendian) { |
| for (int i = 0; i < len; i += (framesize_pc + 1)) { |
| System.arraycopy(buff1, pos, b, i, framesize_pc); |
| System.arraycopy(buff2, pos2, b, i + framesize_pc, 1); |
| pos += framesize_pc; |
| pos2 += 1; |
| } |
| } else { |
| for (int i = 0; i < len; i += (framesize_pc + 1)) { |
| System.arraycopy(buff2, pos2, b, i, 1); |
| System.arraycopy(buff1, pos, b, i + 1, framesize_pc); |
| pos += framesize_pc; |
| pos2 += 1; |
| } |
| } |
| pos -= buffer.arrayOffset(); |
| pos2 -= buffer8.arrayOffset(); |
| return len; |
| } |
| |
| public long skip(long n) throws IOException { |
| int avail = available(); |
| if (avail <= 0) |
| return -1; |
| if (n > avail) |
| n = avail; |
| pos += (n / (framesize_pc + 1)) * (framesize_pc); |
| pos2 += n / (framesize_pc + 1); |
| return super.skip(n); |
| } |
| |
| public int read(byte[] b) throws IOException { |
| return read(b, 0, b.length); |
| } |
| |
| public int read() throws IOException { |
| byte[] b = new byte[1]; |
| int ret = read(b, 0, 1); |
| if (ret == -1) |
| return -1; |
| return 0 & 0xFF; |
| } |
| |
| public boolean markSupported() { |
| return true; |
| } |
| |
| public int available() throws IOException { |
| return (int)buffer.capacity() + (int)buffer8.capacity() - pos - pos2; |
| } |
| |
| public synchronized void mark(int readlimit) { |
| markpos = pos; |
| markpos2 = pos2; |
| } |
| |
| public synchronized void reset() throws IOException { |
| pos = markpos; |
| pos2 = markpos2; |
| |
| } |
| } |
| |
| private float loopStart = -1; |
| private float loopLength = -1; |
| private final ModelByteBuffer buffer; |
| private ModelByteBuffer buffer8 = null; |
| private AudioFormat format = null; |
| private float pitchcorrection = 0; |
| private float attenuation = 0; |
| private int loopType = LOOP_TYPE_OFF; |
| |
| public ModelByteBufferWavetable(ModelByteBuffer buffer) { |
| this.buffer = buffer; |
| } |
| |
| public ModelByteBufferWavetable(ModelByteBuffer buffer, |
| float pitchcorrection) { |
| this.buffer = buffer; |
| this.pitchcorrection = pitchcorrection; |
| } |
| |
| public ModelByteBufferWavetable(ModelByteBuffer buffer, AudioFormat format) { |
| this.format = format; |
| this.buffer = buffer; |
| } |
| |
| public ModelByteBufferWavetable(ModelByteBuffer buffer, AudioFormat format, |
| float pitchcorrection) { |
| this.format = format; |
| this.buffer = buffer; |
| this.pitchcorrection = pitchcorrection; |
| } |
| |
| public void set8BitExtensionBuffer(ModelByteBuffer buffer) { |
| buffer8 = buffer; |
| } |
| |
| public ModelByteBuffer get8BitExtensionBuffer() { |
| return buffer8; |
| } |
| |
| public ModelByteBuffer getBuffer() { |
| return buffer; |
| } |
| |
| public AudioFormat getFormat() { |
| if (format == null) { |
| if (buffer == null) |
| return null; |
| InputStream is = buffer.getInputStream(); |
| AudioFormat format = null; |
| try { |
| format = AudioSystem.getAudioFileFormat(is).getFormat(); |
| } catch (Exception e) { |
| //e.printStackTrace(); |
| } |
| try { |
| is.close(); |
| } catch (IOException e) { |
| //e.printStackTrace(); |
| } |
| return format; |
| } |
| return format; |
| } |
| |
| public AudioFloatInputStream openStream() { |
| if (buffer == null) |
| return null; |
| if (format == null) { |
| InputStream is = buffer.getInputStream(); |
| AudioInputStream ais = null; |
| try { |
| ais = AudioSystem.getAudioInputStream(is); |
| } catch (Exception e) { |
| //e.printStackTrace(); |
| return null; |
| } |
| return AudioFloatInputStream.getInputStream(ais); |
| } |
| if (buffer.array() == null) { |
| return AudioFloatInputStream.getInputStream(new AudioInputStream( |
| buffer.getInputStream(), format, |
| buffer.capacity() / format.getFrameSize())); |
| } |
| if (buffer8 != null) { |
| if (format.getEncoding().equals(Encoding.PCM_SIGNED) |
| || format.getEncoding().equals(Encoding.PCM_UNSIGNED)) { |
| InputStream is = new Buffer8PlusInputStream(); |
| AudioFormat format2 = new AudioFormat( |
| format.getEncoding(), |
| format.getSampleRate(), |
| format.getSampleSizeInBits() + 8, |
| format.getChannels(), |
| format.getFrameSize() + (1 * format.getChannels()), |
| format.getFrameRate(), |
| format.isBigEndian()); |
| |
| AudioInputStream ais = new AudioInputStream(is, format2, |
| buffer.capacity() / format.getFrameSize()); |
| return AudioFloatInputStream.getInputStream(ais); |
| } |
| } |
| return AudioFloatInputStream.getInputStream(format, buffer.array(), |
| (int)buffer.arrayOffset(), (int)buffer.capacity()); |
| } |
| |
| public int getChannels() { |
| return getFormat().getChannels(); |
| } |
| |
| public ModelOscillatorStream open(float samplerate) { |
| // ModelWavetableOscillator doesn't support ModelOscillatorStream |
| return null; |
| } |
| |
| // attenuation is in cB |
| public float getAttenuation() { |
| return attenuation; |
| } |
| // attenuation is in cB |
| public void setAttenuation(float attenuation) { |
| this.attenuation = attenuation; |
| } |
| |
| public float getLoopLength() { |
| return loopLength; |
| } |
| |
| public void setLoopLength(float loopLength) { |
| this.loopLength = loopLength; |
| } |
| |
| public float getLoopStart() { |
| return loopStart; |
| } |
| |
| public void setLoopStart(float loopStart) { |
| this.loopStart = loopStart; |
| } |
| |
| public void setLoopType(int loopType) { |
| this.loopType = loopType; |
| } |
| |
| public int getLoopType() { |
| return loopType; |
| } |
| |
| public float getPitchcorrection() { |
| return pitchcorrection; |
| } |
| |
| public void setPitchcorrection(float pitchcorrection) { |
| this.pitchcorrection = pitchcorrection; |
| } |
| } |