copy_mesh

[dosdemo] / src / mesh.c

diff --git a/src/mesh.c b/src/mesh.c
index 88c6edc..0e8d869 100644 (file)
--- a/src/mesh.c
+++ b/src/mesh.c
@@ -17,6 +17,28 @@ void destroy_mesh(struct g3d_mesh *mesh)
        free(mesh->iarr);
 }
 
+int copy_mesh(struct g3d_mesh *dest, struct g3d_mesh *src)
+{
+       dest->prim = src->prim;
+       if(src->varr) {
+               if(!(dest->varr = malloc(src->vcount * sizeof *src->varr))) {
+                       return -1;
+               }
+               memcpy(dest->varr, src->varr, src->vcount * sizeof *src->varr);
+       }
+       dest->vcount = src->vcount;
+       if(src->iarr) {
+               if(!(dest->iarr = malloc(src->icount * sizeof *src->iarr))) {
+                       free(dest->varr);
+                       dest->varr = 0;
+                       return -1;
+               }
+               memcpy(dest->iarr, src->iarr, src->icount * sizeof *src->iarr);
+       }
+       dest->icount = src->icount;
+       return 0;
+}
+
 static struct {
        int prim;
        struct g3d_vertex *varr;