1 files changed, 124 insertions, 0 deletions
diff --git a/src/classes/com/sun/javafx/audio/windows/waveout/SoundBuffer.java b/src/classes/com/sun/javafx/audio/windows/waveout/SoundBuffer.java
new file mode 100755
index 000000000..b0404673e
--- /dev/null
+++ b/src/classes/com/sun/javafx/audio/windows/waveout/SoundBuffer.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2008 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.
+ */
+
+package com.sun.javafx.audio.windows.waveout;
+
+import java.io.*;
+
+class SoundBuffer {
+    private byte[] data;
+    private boolean needsByteSwap;
+    private int numBytes;
+    private int bytesPerSample;
+    private int numSamples;
+    private boolean playing;
+    private boolean empty;
+
+    // Note: needsByteSwap argument makes assumptions about the format
+    SoundBuffer(int size, int bytesPerSample, boolean needsByteSwap) {
+        this.bytesPerSample = bytesPerSample;
+        this.needsByteSwap = needsByteSwap;
+        data = new byte[size * bytesPerSample];
+        empty = true;
+    }
+
+    boolean playing() {
+        return playing;
+    }
+
+    void playing(boolean playing) {
+        this.playing = playing;
+    }
+
+    boolean empty() {
+        return empty;
+    }
+
+    void empty(boolean empty) {
+        this.empty = empty;
+    }
+
+    void fill(InputStream input) throws IOException {
+        synchronized(this) {
+            if (playing) {
+                throw new IllegalStateException("Can not fill a buffer that is playing");
+            }
+        }
+
+        empty(true);
+        int num = input.read(data);
+        if (num > 0) {
+            numBytes = num;
+            numSamples = numBytes / bytesPerSample;
+            empty(false);
+            if ((numBytes % bytesPerSample) != 0) {
+                System.out.println("WARNING: needed integral multiple of " + bytesPerSample +
+                                   " bytes, but read " + numBytes + " bytes");
+            }
+        } else {
+            numBytes = 0;
+        }
+    }
+
+    int numSamples() {
+        return numSamples;
+    }
+
+    // This is called by the mixer and must be extremely fast
+    // FIXME: may want to reconsider use of floating point at this point
+    // FIXME: assumes all sounds are of the same format to avoid normalization
+    float getSample(int sample) {
+        int startByte = sample * bytesPerSample;
+        // FIXME: assumes no more than 4 bytes per sample
+        int res = 0;
+        if (needsByteSwap) {
+            for (int i = startByte + bytesPerSample - 1; i >= startByte; i--) {
+                res <<= 8;
+                res |= (data[i] & 0xff);
+            }
+        } else {
+            int endByte = startByte + bytesPerSample - 1;
+            for (int i = startByte; i <= endByte; i++) {
+                res <<= 8;
+                res |= (data[i] & 0xff);
+            }
+        }
+        // Sign extend
+        if (bytesPerSample == 2) {
+            res = (short) res;
+        } else if (bytesPerSample == 1) {
+            res = (byte) res;
+        }
+
+        return (float) res;
+    }
+}