1 files changed, 53 insertions, 0 deletions
diff --git a/gst/goom/goom_tools.h b/gst/goom/goom_tools.h
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+++ b/gst/goom/goom_tools.h
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+/* Goom Project
+ * Copyright (C) <2003> iOS-Software
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+#ifndef _GOOMTOOLS_H
+#define _GOOMTOOLS_H
+
+#include "goom_config.h"
+
+/**
+ * Random number generator wrapper for faster random number.
+ */
+
+#define GOOM_NB_RAND 0x10000
+
+typedef struct _GOOM_RANDOM {
+	int array[GOOM_NB_RAND];
+	unsigned short pos;
+} GoomRandom;
+
+GoomRandom *goom_random_init(int i);
+void goom_random_free(GoomRandom *grandom);
+
+inline static int goom_random(GoomRandom *grandom) {
+	
+	grandom->pos++; /* works because pos is an unsigned short */
+	return grandom->array[grandom->pos];
+}
+
+inline static int goom_irand(GoomRandom *grandom, int i) {
+
+	grandom->pos++;
+	return grandom->array[grandom->pos] % i;
+}
+
+/* called to change the specified number of value in the array, so that the array does not remain the same*/
+void goom_random_update_array(GoomRandom *grandom, int numberOfValuesToChange);
+
+#endif