GTF-GLES3.gtf.GL3Tests.instanced_arrays.instanced_arrays_divisor uses -1 as a divisor, so we would overflow to count=0 and upload no data, triggering the assert below. We want to upload 1 element in this case, fixing the test on VC5. --- src/gallium/auxiliary/util/u_vbuf.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/src/gallium/auxiliary/util/u_vbuf.c b/src/gallium/auxiliary/util/u_vbuf.c index 95d7990c6ca4..9073f3feed98 100644 --- a/src/gallium/auxiliary/util/u_vbuf.c +++ b/src/gallium/auxiliary/util/u_vbuf.c @@ -936,7 +936,12 @@ u_vbuf_upload_buffers(struct u_vbuf *mgr, size = mgr->ve->src_format_size[i]; } else if (instance_div) { /* Per-instance attrib. */ - unsigned count = (num_instances + instance_div - 1) / instance_div; + unsigned count = (num_instances + instance_div - 1); + + if (count < num_instances) + count = 0xffffffff; + count /= instance_div; + first += vb->stride * start_instance; size = vb->stride * (count - 1) + mgr->ve->src_format_size[i]; } else { -- 2.16.2 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev