configure.ac: Add checks for Flex/Yacc/Bison and other furry animals, for the new goom 2k4 based plugin

Original commit message from CVS:
2008-02-23  Bastien Nocera  <hadess@hadess.net>

* configure.ac: Add checks for Flex/Yacc/Bison and other
furry animals, for the new goom 2k4 based plugin

* gst/goom/*: Update to use goom 2k4, uses liboil to detect
CPU optimisations (not working yet), move the old plugin to...

* gst/goom2k1/*: ... here, in case somebody is sick enough

Fixes #515073

1 files changed, 32 insertions, 0 deletions

diff --git a/gst/goom/goom_tools.c b/gst/goom/goom_tools.c
new file mode 100644
index 00000000..ebca69e2
--- /dev/null
+++ b/gst/goom/goom_tools.c
@@ -0,0 +1,32 @@
+#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--;
+  }
+}