zink: fix 8 bit index handling code

index_size is specified in bytes, not bits.

Fixes: f4583b40863 ("zink: move 8bit index handling out of u_primconvert path")

Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8081>

diff --git a/src/gallium/drivers/zink/zink_draw.c b/src/gallium/drivers/zink/zink_draw.c
index a885b59..39c0a18 100644 (file)
--- a/src/gallium/drivers/zink/zink_draw.c
+++ b/src/gallium/drivers/zink/zink_draw.c
@@ -279,7 +279,7 @@ zink_draw_vbo(struct pipe_context *pctx,
    if (dinfo->index_size > 0) {
        uint32_t restart_index = util_prim_restart_index_from_size(dinfo->index_size);
        if ((dinfo->primitive_restart && (dinfo->restart_index != restart_index)) ||
-           (!screen->info.have_EXT_index_type_uint8 && dinfo->index_size == 8)) {
+           (!screen->info.have_EXT_index_type_uint8 && dinfo->index_size == 1)) {
           util_translate_prim_restart_ib(pctx, dinfo, dindirect, &draws[0], &index_buffer);
           need_index_buffer_unref = true;
        } else {