vrend: red-blue swizzle implies GL blit
Fixes: f50c878d vrend: factor out preparing the blit info
Signed-off-by: Gert Wollny gert.wollny@collabora.com
Fixes: f50c878d vrend: factor out preparing the blit info
Signed-off-by: Gert Wollny gert.wollny@collabora.com