From 92d7ed8a20d4a018ce5324e6537ae7b478b9e5bf Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 27 Aug 2009 10:09:24 -0700 Subject: mesa: Add support for ARB_draw_elements_base_vertex. --- src/mesa/vbo/vbo_rebase.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) (limited to 'src/mesa/vbo/vbo_rebase.c') diff --git a/src/mesa/vbo/vbo_rebase.c b/src/mesa/vbo/vbo_rebase.c index 3bf7ef580f..799a25fc1c 100644 --- a/src/mesa/vbo/vbo_rebase.c +++ b/src/mesa/vbo/vbo_rebase.c @@ -126,7 +126,20 @@ void vbo_rebase_prims( GLcontext *ctx, if (0) _mesa_printf("%s %d..%d\n", __FUNCTION__, min_index, max_index); - if (ib) { + + if (ib && ctx->Extensions.ARB_draw_elements_base_vertex) { + /* If we can just tell the hardware or the TNL to interpret our + * indices with a different base, do so. + */ + tmp_prims = (struct _mesa_prim *)_mesa_malloc(sizeof(*prim) * nr_prims); + + for (i = 0; i < nr_prims; i++) { + tmp_prims[i] = prim[i]; + tmp_prims[i].basevertex -= min_index; + } + + prim = tmp_prims; + } else if (ib) { /* Unfortunately need to adjust each index individually. */ GLboolean map_ib = ib->obj->Name && !ib->obj->Pointer; -- cgit v1.2.3