Module: Mesa Branch: main Commit: 07437fa3bdd88a51c497aeaa7ee4dce8c2724579 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=07437fa3bdd88a51c497aeaa7ee4dce8c2724579
Author: Mike Blumenkrantz <[email protected]> Date: Tue Apr 19 16:06:44 2022 -0400 util/draw: handle draw_count=0 when reading indirect parameters Fixes: 3eb99323172 ("aux/draw: add a util function for reading back indirect draw params") Reviewed-by: Marek Olšák <[email protected]> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15963> --- src/gallium/auxiliary/util/u_draw.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/gallium/auxiliary/util/u_draw.c b/src/gallium/auxiliary/util/u_draw.c index 70721586738..273724f2a0a 100644 --- a/src/gallium/auxiliary/util/u_draw.c +++ b/src/gallium/auxiliary/util/u_draw.c @@ -154,6 +154,10 @@ util_draw_indirect_read(struct pipe_context *pipe, draw_count = dc_param[0]; pipe_buffer_unmap(pipe, dc_transfer); } + if (!draw_count) { + *num_draws = draw_count; + return NULL; + } draws = malloc(sizeof(struct u_indirect_params) * draw_count); if (!draws) return NULL;
