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aux/draw: if pipe_draw_info::index_bias_varies is not set, ignore index_bias for N>1

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this enables some optimizations in lavapipe

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10995>
This commit is contained in:
Mike Blumenkrantz 2021-05-18 11:10:02 -04:00 • committed by Marge Bot
parent 2ee0912273
commit 4a68b16a52
1 changed files with 10 additions and 6 deletions
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16
src/gallium/auxiliary/draw/draw_pt.c
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@ -56,6 +56,7 @@ DEBUG_GET_ONCE_BOOL_OPTION(draw_no_fse, "DRAW_NO_FSE", FALSE)
static boolean
draw_pt_arrays(struct draw_context *draw,
unsigned prim,
bool index_bias_varies,
const struct pipe_draw_start_count_bias *draw_info,
unsigned num_draws)
{
@ -153,7 +154,9 @@ draw_pt_arrays(struct draw_context *draw,
} else
draw_pt_split_prim(prim, &first, &incr);
count = draw_pt_trim_count(draw_info[i].count, first, incr);
draw->pt.user.eltBias = draw->pt.user.eltSize ? draw_info[i].index_bias : 0;
draw->pt.user.eltBias = draw->pt.user.eltSize ?
(index_bias_varies ? draw_info[i].index_bias : draw_info[0].index_bias) :
0;
if (count >= first)
frontend->run( frontend, draw_info[i].start, count );
@ -390,7 +393,7 @@ prim_restart_loop(struct draw_context *draw,
if (i < elt_max && restart_idx == info->restart_index) {
if (cur.count > 0) {
/* draw elts up to prev pos */
draw_pt_arrays(draw, info->mode, &cur, 1);
draw_pt_arrays(draw, info->mode, info->index_bias_varies, &cur, 1);
}
/* begin new prim at next elt */
cur.start = i + 1;
@ -401,7 +404,7 @@ prim_restart_loop(struct draw_context *draw,
}
}
if (cur.count > 0) {
draw_pt_arrays(draw, info->mode, &cur, 1);
draw_pt_arrays(draw, info->mode, info->index_bias_varies, &cur, 1);
}
}
@ -429,7 +432,7 @@ draw_pt_arrays_restart(struct draw_context *draw,
/* Non-indexed prims (draw_arrays).
* Primitive restart should have been handled in gallium frontends.
*/
draw_pt_arrays(draw, prim, draw_info, num_draws);
draw_pt_arrays(draw, prim, info->index_bias_varies, draw_info, num_draws);
}
}
@ -491,7 +494,7 @@ draw_instances(struct draw_context *draw,
draw_pt_arrays_restart(draw, info, draws, num_draws);
}
else {
draw_pt_arrays(draw, info->mode, draws, num_draws);
draw_pt_arrays(draw, info->mode, info->index_bias_varies, draws, num_draws);
}
}
}
@ -577,7 +580,8 @@ draw_vbo(struct draw_context *draw,
if (0) {
for (unsigned i = 0; i < num_draws; i++)
draw_print_arrays(draw, use_info->mode, use_draws[i].start, MIN2(use_draws[i].count, 20), use_draws[i].index_bias);
draw_print_arrays(draw, use_info->mode, use_draws[i].start, MIN2(use_draws[i].count, 20),
use_info->index_bias_varies ? use_draws[i].index_bias : use_draws[0].index_bias);
}
index_limit = util_draw_max_index(draw->pt.vertex_buffer,