diff options
| author | Ilia Mirkin <imirkin@alum.mit.edu> | 2015-02-14 01:27:19 -0500 |
|---|---|---|
| committer | Emil Velikov <emil.l.velikov@gmail.com> | 2015-02-24 12:16:28 +0000 |
| commit | 88d47387b89995519e9010c42939b5ee7b5bcc8d (patch) | |
| tree | c76a78cc9840ceae16d56f14ad73b0a3f68d9d71 /src | |
| parent | c08e9605c2a71003359004c97392149267758a46 (diff) | |
st/mesa: treat resource-less xfb buffers as if they weren't there
If a transform feedback buffer's size is 0, st_bufferobj_data doesn't
end up creating a buffer for it. There's no point in trying to write to
such a buffer, so just pretend as if it's not really there.
This fixes arb_gpu_shader5-xfb-streams-without-invocations on nvc0.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: "10.4 10.5" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit 80d373ed5b1d90a5e71747ee5b8951baac62f750)
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/state_tracker/st_cb_xformfb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/state_tracker/st_cb_xformfb.c b/src/mesa/state_tracker/st_cb_xformfb.c index 8f75eda8a10..a2bd86aff55 100644 --- a/src/mesa/state_tracker/st_cb_xformfb.c +++ b/src/mesa/state_tracker/st_cb_xformfb.c @@ -122,7 +122,7 @@ st_begin_transform_feedback(struct gl_context *ctx, GLenum mode, for (i = 0; i < max_num_targets; i++) { struct st_buffer_object *bo = st_buffer_object(sobj->base.Buffers[i]); - if (bo) { + if (bo && bo->buffer) { /* Check whether we need to recreate the target. */ if (!sobj->targets[i] || sobj->targets[i] == sobj->draw_count || |