[Mesa-dev] [PATCH] virgl/vtest: fix front buffer flush with protocol version 0.

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

Older versions of virglrenderer before 33da7361aec486290df0aec4ad8dfa8ff6adde2c
in vtest mode, misrender gears.

Fixes: 9d81cd8e7c (virgl: Pass resource size and transfer offsets)
---
 src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c b/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c
index 65963ad50e1..5422b29e55a 100644
--- a/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c
+++ b/src/gallium/winsys/virgl/vtest/virgl_vtest_winsys.c
@@ -644,7 +644,7 @@ static void virgl_vtest_flush_frontbuffer(struct virgl_winsys *vws,
     * get the data. */
    virgl_vtest_recv_transfer_get_data(vtws, map + offset, size, valid_stride,
                                       &box, res->format,
-                                      util_format_get_stride(res->format, res->width));
+                                      vtws->protocol_version == 0 ? valid_stride : util_format_get_stride(res->format, res->width));
 
    vtws->sws->displaytarget_unmap(vtws->sws, res->dt);
 
-- 
2.19.1