[1/2] wined3d: Explicitly enable depth buffer writing in depth_blt()

[H. Verbeet]

This prevents conflicts with WINED3DRS_ZWRITEENABLE.
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: 01-wined3d_depth_blt_mask.diff.txt
Url: http://www.winehq.org/pipermail/wine-patches/attachments/20080625/1e8cb88e/attachment.txt