1 files changed, 75 insertions, 0 deletions
diff --git a/src/java/com/jogamp/openal/impl/ALCImpl.java b/src/java/com/jogamp/openal/impl/ALCImpl.java
new file mode 100644
index 0000000..208e64f
--- /dev/null
+++ b/src/java/com/jogamp/openal/impl/ALCImpl.java
@@ -0,0 +1,75 @@
+/*
+ * Created on Saturday, July 10 2010 17:08
+ */
+package com.jogamp.openal.impl;
+
+import com.jogamp.openal.ALException;
+import com.jogamp.openal.ALCdevice;
+import java.io.UnsupportedEncodingException;
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+
+/**
+ * ALC implementation.
+ * @author Michael Bien
+ */
+public class ALCImpl extends ALCAbstractImpl {
+
+    public String alcGetString(ALCdevice device, int param) {
+        if (device == null && param == ALC_DEVICE_SPECIFIER) {
+            throw new ALException("Call alcGetDeviceSpecifiers to fetch all available device names");
+        }
+
+        ByteBuffer buf = alcGetStringImpl(device, param);
+        if (buf == null) {
+            return null;
+        }
+        byte[] res = new byte[buf.capacity()];
+        buf.get(res);
+        try {
+            return new String(res, "US-ASCII");
+        } catch (UnsupportedEncodingException e) {
+            throw new ALException(e);
+        }
+    }
+
+    /**
+     * Fetches the names of the available ALC device specifiers.
+     * Equivalent to the C call alcGetString(NULL, ALC_DEVICE_SPECIFIER).
+     */
+    public String[] alcGetDeviceSpecifiers() {
+        return getDoubleNullTerminatedString(ALC_DEVICE_SPECIFIER);
+    }
+
+    /**
+     * Fetches the names of the available ALC capture device specifiers.
+     * Equivalent to the C call alcGetString(NULL, ALC_CAPTURE_DEVICE_SPECIFIER).
+     */
+    public String[] alcGetCaptureDeviceSpecifiers() {
+        return getDoubleNullTerminatedString(ALC_CAPTURE_DEVICE_SPECIFIER);
+    }
+
+    private String[] getDoubleNullTerminatedString(int which) {
+        ByteBuffer buf = alcGetStringImpl(null, which);
+        if (buf == null) {
+            return null;
+        }
+        byte[] bytes = new byte[buf.capacity()];
+        buf.get(bytes);
+        try {
+            ArrayList/*<String>*/ res = new ArrayList/*<String>*/();
+            int i = 0;
+            while (i < bytes.length) {
+                int startIndex = i;
+                while ((i < bytes.length) && (bytes[i] != 0)) {
+                    i++;
+                }
+                res.add(new String(bytes, startIndex, i - startIndex, "US-ASCII"));
+                i++;
+            }
+            return (String[]) res.toArray(new String[res.size()]);
+        } catch (UnsupportedEncodingException e) {
+            throw new ALException(e);
+        }
+    }
+}