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util/primconvert: handle indirect draws

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this avoids ping-ponging to the driver, which would have to call back
to here anyway with the unwrapped indirect draw

Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10973>
This commit is contained in:
Mike Blumenkrantz 2021-05-21 06:31:31 -04:00 • committed by Marge Bot
parent 4673febf91
commit 26e718fb37
1 changed files with 11 additions and 7 deletions
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18
src/gallium/auxiliary/indices/u_primconvert.c
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@ -119,14 +119,18 @@ util_primconvert_draw_vbo(struct primconvert_context *pc,
void *dst;
unsigned ib_offset;
/* indirect emulated prims is not possible, as we need to know
* draw start/count, so we must emulate. Too bad, so sad, but
* we are already off the fast-path here.
*/
if (indirect && indirect->buffer) {
/* num_draws is only applicable for direct draws: */
assert(num_draws == 1);
util_draw_indirect(pc->pipe, info, indirect);
/* this is stupid, but we're already doing a readback,
* so this thing may as well get the rest of the job done
*/
unsigned draw_count = 0;
struct u_indirect_params *new_draws = util_draw_indirect_read(pc->pipe, info, indirect, &draw_count);
if (!new_draws)
return;
for (unsigned i = 0; i < draw_count; i++)
util_primconvert_draw_vbo(pc, &new_draws[i].info, drawid_offset + i, NULL, &new_draws[i].draw, 1);
free(new_draws);
return;
}