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 <imir...@alum.mit.edu> --- src/mesa/state_tracker/st_cb_xformfb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/mesa/state_tracker/st_cb_xformfb.c b/src/mesa/state_tracker/st_cb_xformfb.c index 8f75eda..a2bd86a 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 || -- 2.0.5 _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/nouveau