[PATCH] wined3d VideoRam registry setting
thunderbird2k at gmx.net
Sun Oct 16 09:25:32 CDT 2005
> > Another thing:
> > Would it be better to determine the amount of videoRam when installing
> > and storing it in the registry or checking at runtime when
> > GetAvailableTextureMem is called?
> I'd suggest to determine it in IWineD3D::CreateDevice and store it in the
> IWineD3DDeviceImpl class.
> How does this script work with multiple graphics cards?
Parsing the X log file is way to hacky in my opinion to determine the amount
of video memory. Depending on how many X servers you use it can be a
different file. In case of nvidia videocards I would prefer to use the
NV-CONTROL extension for X. (it is available on Linux/Solaris/FreeBSD) In
other cases I would use the pci header of the videocard. A part of it
contains what memory ranges are mapped and a part of it corresponds to the
size which is mapped for the framebuffer. For instance 128MB on my system:
0000:01:00.0 VGA compatible controller: nVidia Corporation NV35 [GeForce FX
5900] (rev a1) (prog-if 00 [VGA])
Flags: bus master, 66MHz, medium devsel, latency 248, IRQ 11
Memory at de000000 (32-bit, non-prefetchable) [size=16M]
Memory at d0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at dfee0000 [disabled] [size=128K]
Capabilities: <available only to root>
The only thing is that the pci header can't be thrusted in all cases but I
would say it is a lot better than nothing.
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