+ (((((r) >> 3) & 0x1f) << 11) | ((((g) >> 2) & 0x3f) << 5) | (((b) >> 3) & 0x1f))
+#define PACK_RGB32(r, g, b) \
+ ((((r) & 0xff) << 16) | (((g) & 0xff) << 8) | ((b) & 0xff))
+
+static void draw_tunnel_range16(void *pix, int starty, int num_lines, long tm)
+{
+ int i, j;
+ unsigned int *tmap = tunnel_map + starty * vxsz;
+ unsigned char *fog = tunnel_fog + starty * vxsz;
+
+ long toffs = tm / 4;
+ unsigned int *pixels = (unsigned int*)pix + starty * (xsz >> 1);
+
+ for(i=0; i<num_lines; i++) {
+ for(j=0; j<vxsz; j++) {
+ unsigned int col;
+ int r, g, b;