diff options
Diffstat (limited to 'gst/goom/goom_tools.c')
-rw-r--r-- | gst/goom/goom_tools.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gst/goom/goom_tools.c b/gst/goom/goom_tools.c new file mode 100644 index 0000000..4f9a6b2 --- /dev/null +++ b/gst/goom/goom_tools.c @@ -0,0 +1,50 @@ +/* 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., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ +#include "goom_tools.h" +#include <stdlib.h> + +GoomRandom * +goom_random_init (int i) +{ + GoomRandom *grandom = (GoomRandom *) malloc (sizeof (GoomRandom)); + + srand (i); + grandom->pos = 1; + goom_random_update_array (grandom, GOOM_NB_RAND); + return grandom; +} + +void +goom_random_free (GoomRandom * grandom) +{ + free (grandom); +} + +void +goom_random_update_array (GoomRandom * grandom, int numberOfValuesToChange) +{ + while (numberOfValuesToChange > 0) { +#if RAND_MAX < 0x10000 + grandom->array[grandom->pos++] = ((rand () << 16) + rand ()) / 127; +#else + grandom->array[grandom->pos++] = rand () / 127; +#endif + numberOfValuesToChange--; + } +} |