--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/liboil/src/liboilrandom.c	Tue Aug 31 16:54:36 2010 +0300
@@ -0,0 +1,262 @@
+/*
+ * LIBOIL - Library of Optimized Inner Loops
+ * Copyright (c) 2005 David A. Schleef <ds@schleef.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions 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.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <liboil/liboilrandom.h>
+#include "liboil/liboilcolorspace.h"
+#include <stdlib.h>
+
+
+/**
+ * SECTION:liboilrandom
+ * @title: Random Number Generation
+ * @short_description: Random number generation
+ */
+
+static void
+_oil_random_bits (void *dest, int n)
+{
+  int i;
+  uint8_t *d = dest;
+  for(i=0;i<n;i++){
+    d[i] = (rand()>>16);
+  }
+}
+
+/**
+ * oil_random_s32:
+ * @dest:
+ * @n:
+ *
+ * Writes random values in the range [-(1<<31), (1<<31)-1] to the
+ * destination array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_s32(oil_type_s32 *dest, int n)
+{
+  _oil_random_bits (dest, n*4);
+}
+
+/**
+ * oil_random_s64:
+ *
+ * Writes random values in the range [-(1<<63), (1<<63)-1] to the
+ * destination array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_s64 (oil_type_s64 *dest, int n)
+{
+  _oil_random_bits (dest, n*8);
+}
+
+/**
+ * oil_random_s16:
+ *
+ * Writes random values in the range [-(1<<15), (1<<15)-1] to the
+ * destination array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_s16 (oil_type_s16 *dest, int n)
+{
+  _oil_random_bits (dest, n*2);
+}
+
+/**
+ * oil_random_s8:
+ *
+ * Writes random values in the range [-(1<<7), (1<<7)-1] to the
+ * destination array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_s8 (oil_type_s8 *dest, int n)
+{
+  _oil_random_bits (dest, n);
+}
+
+/**
+ * oil_random_u32:
+ *
+ * Writes random values in the range [0, (1<<32)-1] to the
+ * destination array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_u32 (oil_type_u32 *dest, int n)
+{
+  _oil_random_bits (dest, n*4);
+}
+
+/**
+ * oil_random_u64:
+ *
+ * Writes random values in the range [0, (1<<64)-1] to the
+ * destination array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_u64 (oil_type_u64 *dest, int n)
+{
+  _oil_random_bits (dest, n*8);
+}
+
+/**
+ * oil_random_u16:
+ *
+ * Writes random values in the range [0, (1<<16)-1] to the
+ * destination array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_u16 (oil_type_u16 *dest, int n)
+{
+  _oil_random_bits (dest, n*2);
+}
+
+/**
+ * oil_random_u8:
+ *
+ * Writes random values in the range [0, (1<<8)-1] to the
+ * destination array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_u8 (oil_type_u8 *dest, int n)
+{
+  _oil_random_bits (dest, n);
+}
+
+/**
+ * oil_random_f64:
+ *
+ * Writes random double-precision floating point values in the
+ * range [0, 1.0) to the destination array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_f64 (oil_type_f64 *dest, int n)
+{
+  int i;
+  for(i=0;i<n;i++){
+    dest[i] = (((rand()/(RAND_MAX+1.0))+rand())/(RAND_MAX+1.0));
+  }
+}
+
+/**
+ * oil_random_f32:
+ *
+ * Writes random single-precision floating point values in the
+ * range [0, 1.0) to the destination array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_f32 (oil_type_f32 *dest, int n)
+{
+  int i;
+  for(i=0;i<n;i++){
+    dest[i] = (rand()/(RAND_MAX+1.0));
+  }
+}
+
+/**
+ * oil_random_alpha:
+ *
+ * Writes random values in the range [0, 255] to the destination
+ * array suitable for alpha values.  This is similar to oil_random_u8(),
+ * except the values 0 and 255 are strongly favored.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_alpha(uint8_t *dest, int n)
+{
+  int i;
+  int x;
+  for(i=0;i<n;i++){
+    x = ((rand()>>8) & 0x1ff) - 0x80;
+    if (x<0) x = 0;
+    if (x>255) x = 255;
+    dest[i] = x;
+  }
+}
+
+/**
+ * oil_random_argb:
+ * @dest: destination array.
+ * @n: number of values to write.
+ *
+ * Creates valid random RGBA values and places them in the destination
+ * array.
+ */
+#ifdef __SYMBIAN32__
+EXPORT_C
+#endif
+void
+oil_random_argb(uint32_t *dest, int n)
+{
+  int i;
+  int x;
+  for(i=0;i<n;i++){
+    x = ((rand()>>8) & 0x1ff) - 0x80;
+    if (x<0) x = 0;
+    if (x>255) x = 255;
+    dest[i] = oil_argb_noclamp(x,
+        oil_muldiv_255(x,oil_rand_u8()),
+        oil_muldiv_255(x,oil_rand_u8()),
+        oil_muldiv_255(x,oil_rand_u8()));
+  }
+
+}
+
+