"assumed" graphic card memory

[Peter Beutner]

Chris schrieb:
>>>>> It might be possible to guesstimate the available memory:
>>>>> http://delphi3d.net/articles/viewarticle.php?article=texman.htm
>> quoting from the article:
>> ---
>> The implementation of the glAreTexturesResident() function, which is
>> so critical for this technique, has not been properly standardized.
>> [...]
>> This makes the technique described in this article pretty much
>> useless - unless you want to put "NVidia 3D cards only" in your app's
>> system requirements.
>> ---
> 
> Not to mention that, especially with accelerated compositing, that the size of 
> textures that could fit could be significantly less than the amount of VRAM 
> the card has.
> 
>> Isn't the amount of _free_ vram what wine really is interested in?
>> The information how much RAM the card has is pretty much useless.
> 
> The amount of free VRAM is rather volatile. Most games would use the total 
> amount of VRAM as a guide to how much to attempt to put onto the card, not as 
> an absolute "this is how much you have to work with". Besides, if the specs 
> for a D3D function say it returns the total amount of VRAM, WineD3D would 
> need to return the total amount of VRAM.
hm i thought we were talking about IDirect3DDevice9::GetAvailableTextureMem which does
not return the total amount but the amount that is currently available.

 
> Something you maybe could try, if you can determine the location of the X log 
> file..
> 
> An nVidia card with the proprietary drivers:
> 
> # grep VideoRAM /var/log/Xorg.0.log
> (--) NVIDIA(0): VideoRAM: 262144 kBytes
> 
> A built-in Intel card with the open-source drivers:
> 
> # grep VideoRAM /var/log/Xorg.0.log
> (--) I810(0): Pre-allocated VideoRAM: 7932 kByte
> (==) I810(0): VideoRAM: 65536 kByte
> 
> I couldn't find anyone with an ATi card to test with, unfortunately.
# grep VideoRAM /var/log/Xorg.0.log
(--) RADEON(0): Mapped VideoRAM: 65536 kByte (128 bit DDR SDRAM)

still kinda ugly solution imo