Re: VIA CN700 Direct 3D Hardware support by Louis
Louis
Fri Jun 15 19:12:15 CDT 2007
There are a few different reasons that the Reference driver would fail to
load.
The most common reason I've seen is if the Display Driver for the platform
doesn't support system memory surfaces. This would happen if the display
driver relied on the DDraw emulation layer in WinCE 5.0. In CE 6.0, there is
no emulation layer and the DDraw driver should create system memory surfaces
itself. This is most easily achieved by having the DDraw driver call
DDGPECreateSurface in HalSurface if the DDSCAPS_SYSTEMMEMORY flag is set.
--
Louis Clausen
Software Design Engineer in Test
Windows Devices Core Multimedia
This posting is provided "AS IS" with no warranties, and confers no rights.
You assume all risk for your use.
"Massimo B." <MassimoB@discussions.microsoft.com> wrote in message
news:AC9E0400-68C0-432D-BA7B-DE49382D177A@microsoft.com...
> Hi again to all,
> we use a JetWay J7F2WE1G5D based on VIA CN700 ChipSet + integrated S3
> Unichrome Pro graphics, we tried WinCE 5.0 and 6.0 with all the last
> update
> but we are unable to make work the Direct 3D hardware driver (if there is
> inside the BSP from VIA, no word that say NO 3D).
>
> All the 3D Test work using 3D reference driver (-ref parameter) with WinCE
> 5.0 but not with 6.0, the problem reported is always "unable to create
> D3DM
> device"
>
> There is someone that have an idea ??
>
> Thanks and regards
> --
> Massimo B. (Italy)
> R & D department