debugging the BSP

[dosdemo] / src / 3dgfx.c

diff --git a/src/3dgfx.c b/src/3dgfx.c
index 3999747..a4af73a 100644 (file)
--- a/src/3dgfx.c
+++ b/src/3dgfx.c
@@ -404,6 +404,9 @@ void g3d_draw_indexed(int prim, const struct g3d_vertex *varr, int varr_size,
        int vnum = prim; /* primitive vertex counts correspond to enum values */
        int mvtop = st->mtop[G3D_MODELVIEW];
        int ptop = st->mtop[G3D_PROJECTION];
        int vnum = prim; /* primitive vertex counts correspond to enum values */
        int mvtop = st->mtop[G3D_MODELVIEW];
        int ptop = st->mtop[G3D_PROJECTION];

+       struct g3d_vertex *tmpv;
+
+       tmpv = alloca(prim * 6 * sizeof *tmpv);

 
        /* calc the normal matrix */
        memcpy(st->norm_mat, st->mat[G3D_MODELVIEW][mvtop], 16 * sizeof(float));
 
        /* calc the normal matrix */
        memcpy(st->norm_mat, st->mat[G3D_MODELVIEW][mvtop], 16 * sizeof(float));

@@ -432,7 +435,6 @@ void g3d_draw_indexed(int prim, const struct g3d_vertex *varr, int varr_size,
 
                /* clipping */
                for(i=0; i<6; i++) {
 
                /* clipping */
                for(i=0; i<6; i++) {

-                       struct g3d_vertex tmpv[16];

                        memcpy(tmpv, v, vnum * sizeof *v);
 
                        if(clip_frustum(v, &vnum, tmpv, vnum, i) < 0) {
                        memcpy(tmpv, v, vnum * sizeof *v);
 
                        if(clip_frustum(v, &vnum, tmpv, vnum, i) < 0) {