diff options
| -rw-r--r-- | src/gallium/winsys/sw/xlib/xlib_sw_winsys.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gallium/winsys/sw/xlib/xlib_sw_winsys.c b/src/gallium/winsys/sw/xlib/xlib_sw_winsys.c index 8753139107c..a4c1d50453b 100644 --- a/src/gallium/winsys/sw/xlib/xlib_sw_winsys.c +++ b/src/gallium/winsys/sw/xlib/xlib_sw_winsys.c @@ -396,6 +396,7 @@ xlib_displaytarget_create(struct sw_winsys *winsys, { struct xlib_displaytarget *xlib_dt; unsigned nblocksy, size; + int ignore; xlib_dt = CALLOC_STRUCT(xlib_displaytarget); if (!xlib_dt) @@ -410,7 +411,8 @@ xlib_displaytarget_create(struct sw_winsys *winsys, xlib_dt->stride = align(util_format_get_stride(format, width), alignment); size = xlib_dt->stride * nblocksy; - if (!debug_get_option_xlib_no_shm()) { + if (!debug_get_option_xlib_no_shm() && + XQueryExtension(xlib_dt->display, "MIT-SHM", &ignore, &ignore, &ignore)) { xlib_dt->data = alloc_shm(xlib_dt, size); if (xlib_dt->data) { xlib_dt->shm = True; |