[Mesa-dev] [Review Request (master branch)] st/mesa: Fix topogun-1.06-orc-84k-resize.trace crash
Ilia Mirkin
imirkin at alum.mit.edu
Tue Jan 29 18:58:01 UTC 2019
Would it be wise to just initialize everything explicitly? For example
this is what _mesa_draw_arrays does:
memset(&prim, 0, sizeof(prim));
prim.begin = 1;
prim.end = 1;
prim.mode = mode;
prim.num_instances = numInstances;
prim.base_instance = baseInstance;
prim.draw_id = drawID;
prim.is_indirect = 0;
prim.start = start;
prim.count = count;
and vbo_exec_Begin has:
exec->vtx.prim[i].mode = mode;
exec->vtx.prim[i].begin = 1;
exec->vtx.prim[i].end = 0;
exec->vtx.prim[i].indexed = 0;
exec->vtx.prim[i].pad = 0;
exec->vtx.prim[i].start = exec->vtx.vert_count;
exec->vtx.prim[i].count = 0;
exec->vtx.prim[i].num_instances = 1;
exec->vtx.prim[i].base_instance = 0;
exec->vtx.prim[i].is_indirect = 0;
I do think that your change is all that's strictly needed though.
Sorry about the breakage!
On Tue, Jan 29, 2019 at 1:31 PM Neha Bhende <bhenden at vmware.com> wrote:
>
> This patch fixes regression caused by
> bac8534267- st/mesa: allow glDrawElements to work with GL_SELECT feedback
> We also need to set instance count while creating new rastpos stage.
>
> Reviewed-by: Brian Paul <brianp at vmware.com>
> ---
> src/mesa/state_tracker/st_cb_rasterpos.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/src/mesa/state_tracker/st_cb_rasterpos.c b/src/mesa/state_tracker/st_cb_rasterpos.c
> index fecaaf7..cca2fba 100644
> --- a/src/mesa/state_tracker/st_cb_rasterpos.c
> +++ b/src/mesa/state_tracker/st_cb_rasterpos.c
> @@ -206,6 +206,7 @@ new_draw_rastpos_stage(struct gl_context *ctx, struct draw_context *draw)
> rs->prim.indexed = 0;
> rs->prim.begin = 1;
> rs->prim.end = 1;
> + rs->prim.num_instances = 1;
> rs->prim.start = 0;
> rs->prim.count = 1;
>
> --
> 2.7.4
>
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