X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=dosdemo;a=blobdiff_plain;f=src%2Fpolyclip.h;h=adee29ddb74e2cd145a24b59fc9b1c9d0778ca31;hp=0b460cfeaceb5ce090a93ee0d5ae34fd157c5edb;hb=8f7234e08947a80bace3643f37214c5fb076bdfe;hpb=00a81988c5c6c91997f2f9346ac94858622490bd

diff --git a/src/polyclip.h b/src/polyclip.h
index 0b460cf..adee29d 100644
--- a/src/polyclip.h
+++ b/src/polyclip.h
@@ -25,6 +25,12 @@ enum {
 int clip_poly(struct g3d_vertex *vout, int *voutnum,
 		const struct g3d_vertex *vin, int vnum, struct cplane *plane);
 
+/* only checks if the polygon would be clipped by the plane, and classifies it
+ * as inside/outside/straddling, without actually producing a clipped polygon.
+ * return values are the same as clip_poly.
+ */
+int check_clip_poly(const struct g3d_vertex *v, int vnum, struct cplane *plane);
+
 /* Special-case frustum clipper (might be slightly faster) */
 int clip_frustum(struct g3d_vertex *vout, int *voutnum,
 		const struct g3d_vertex *vin, int vnum, int fplane);