1 files changed, 118 insertions, 0 deletions
diff --git a/src/xine-utils/sorted_array.c b/src/xine-utils/sorted_array.c
new file mode 100644
index 000000000..3046969f5
--- /dev/null
+++ b/src/xine-utils/sorted_array.c
@@ -0,0 +1,118 @@
+/* 
+ * Copyright (C) 2000-2006 the xine project
+ * 
+ * This file is part of xine, a free video player.
+ * 
+ * xine is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * xine 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 for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA
+ *
+ * $Id: sorted_array.c,v 1.1 2006/01/16 08:04:44 tmattern Exp $
+ *
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include "sorted_array.h"
+
+/* Array internal struct */
+struct xine_sarray_s {
+  xine_array_t             *array;
+  xine_sarray_comparator_t  comparator;
+};
+
+/* Constructor */
+xine_sarray_t *xine_sarray_new(size_t initial_size, xine_sarray_comparator_t comparator) {
+  xine_sarray_t *new_sarray;
+
+  new_sarray = (xine_sarray_t *)malloc(sizeof(xine_sarray_t));
+  if (!new_sarray)
+    return NULL;
+
+  new_sarray->array = xine_array_new(initial_size);
+  new_sarray->comparator = comparator;
+
+  return new_sarray;
+}
+
+/* Destructor */
+void xine_sarray_delete(xine_sarray_t *sarray) {
+  if (sarray->array) {
+    xine_array_delete(sarray->array);
+  }
+  free(sarray);
+}
+
+size_t xine_sarray_size(xine_sarray_t *sarray) {
+  return xine_array_size(sarray->array);
+}
+
+void xine_sarray_clear(xine_sarray_t *sarray) {
+  xine_array_clear(sarray->array);
+}
+
+int xine_sarray_add(xine_sarray_t *sarray, void *value) {
+  int pos;
+
+  pos = xine_sarray_binary_search(sarray, value);
+  if (pos < 0)
+    pos = ~pos;
+  xine_array_insert(sarray->array, pos, value);
+
+  return pos;
+}
+
+void xine_sarray_remove(xine_sarray_t *sarray, unsigned int position) {
+  xine_array_remove(sarray->array, position);
+}
+
+void *xine_sarray_get(xine_sarray_t *sarray, unsigned int position) {
+  return xine_array_get(sarray->array, position);
+}
+
+int xine_sarray_binary_search(xine_sarray_t *sarray, void *key) {
+  int low, high, mid, pos;
+  int comp;
+
+  if (xine_array_size(sarray->array) > 0) {
+    low = 0;
+    high = xine_array_size(sarray->array) - 1;
+
+    while ((high - low ) > 1) {
+      mid = low + (high - low) / 2;
+      if (sarray->comparator(key, xine_array_get(sarray->array, mid)) < 0) {
+        high = mid;
+      } else {
+        low = mid;
+      }
+    }
+
+    if ((comp = sarray->comparator(key, xine_array_get(sarray->array, low))) < 0) {
+      pos = ~low;         /* not found */
+    } else if (comp == 0) {
+      pos = low;          /* found */
+    } else if ((comp = sarray->comparator(key, xine_array_get(sarray->array, high))) < 0) {
+      pos = ~high;        /* not found */
+    } else if (comp == 0) {
+      pos = high;         /* found */
+    } else {
+      pos = ~(high + 1);  /* not found */
+    }
+  } else {
+    pos = ~0; /* not found */
+  }
+  return pos;
+}