svga: adjust render target view format for RGBX

For GL_ARB_copy_image we may be asked to create an RGBA view of
a RGBX surface.  Use an RGBX view format for that case.

Acked-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
1 file changed