rnd-20091028-1-src

[rocksndiamonds.git] / src / game_sp / vb_lib.c

diff --git a/src/game_sp/vb_lib.c b/src/game_sp/vb_lib.c
index d88c8e36061e3d3d67685232923c4c8df4f15e2b..5c1dae75010089def694009c81b8c0c7162ed039 100644 (file)
--- a/src/game_sp/vb_lib.c
+++ b/src/game_sp/vb_lib.c
@@ -13,11 +13,30 @@
 
 
 /* helper functions for constructs not supported by C */
+
+#if 1
+
+void *REDIM_1D(int data_size, int first_data_pos, int last_data_pos)
+{
+  /* for a buffer of n elements, first_data_pos is 0 and last_data_pos is n-1 */
+  /* a negative value for "first_data_pos" indicates a preceding buffer zone */
+
+  int data_count = last_data_pos - first_data_pos + 1;
+  int buffer_size = data_size * data_count;
+  int buffer_start = data_size * first_data_pos;
+
+  return (checked_calloc(buffer_size) - buffer_start);
+}
+
+#else
+
 void *REDIM_1D(int a, int b, int c)
 {
   return checked_calloc(a * (c - b + 1));
 }
 
+#endif
+
 void *REDIM_2D(int a, int b, int c, int d, int e)
 {
   return 0;