From 7f9e1a7720f5e7b464c39e3640e8ed64687e9645 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Fri, 21 Sep 2012 07:26:33 +0200 Subject: [PATCH] i965: Add a comment explaining one of the brw_draw_upload.c loops. Reviewed-and-tested-by: Kenneth Graunke --- src/mesa/drivers/dri/i965/brw_draw_upload.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c index 31e092e2cc6..f5f65caf058 100644 --- a/src/mesa/drivers/dri/i965/brw_draw_upload.c +++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c @@ -411,6 +411,10 @@ static void brw_prepare_vertices(struct brw_context *brw) intel_buffer_object(glarray->BufferObj); int k; + /* If we have a VB set to be uploaded for this buffer object + * already, reuse that VB state so that we emit fewer + * relocations. + */ for (k = 0; k < i; k++) { const struct gl_client_array *other = brw->vb.enabled[k]->glarray; if (glarray->BufferObj == other->BufferObj && -- 2.30.2