On Wed, Feb 18, 2009 at 2:11 AM, Roderick Colenbrander < thunderbird2k@gmx.net> wrote:
On Mon, Feb 16, 2009 at 1:26 PM, Chris Robinson chris.kcat@gmail.comwrote:
On Monday 16 February 2009 9:38:19 am Seth Shelnutt wrote:
I had an interesting thought the other day, and that is to having
some
built in support for forwarding windows dlls to linux .so's.
IIRC, this kind of thing is generally discouraged, except in cases
where
needed (eg. opengl32). Part of the problem is internal differences..
for
example, what would a Linux .so do if it's given a Win32 filename path? Other problems would be if the Linux equivalent wants a Window for a function argument and the DLL wants an HWND instead, or if the DLL has more/different functions (eg. CUDA on Win32 has functions for dealing with D3D
objects;
CUDA on Linux doesn't, and it wouldn't be straight forward to even implement them through wined3d).
Something like OpenGL, and even OpenAL to some degree, would directly benefit from having the DLLs forwarded to their host equivalents as it provides better access to the hardware and better integration with the host system. Something like zlib or ogg/vorbis and stuff wouldn't though, since the code
should
largely be the same, and save for some bugs/inefficiencies in Wine
(which
should be fixed), would work identically.
Does Wine yet have the capability to interface with HAL for Win32
hardware
access similar to NT? It looks like it doesn't from all this talk of forwarding DLLs. What we should do instead of trying to forward DLLs, which is asking for more trouble than its worth, is try to get the NT layer to connect to UNIX HAL so that DLLs can link directly to HAL and operate the hardware.
This can't be done. You would be writing your own operating system and hardware can't be shared. It is not that hard to write wrapper libraries. Second even if libraries look similar between OSes take for instance Cuda it does offer OS-specific functionality like e.g. Direct3D integration.
Roderick
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So it wouldn't be possible to hook Wine's Direct3D implementation into Gallium3D on Linux and use the hardware directly instead of translating it to OpenGL and then sending it to the hardware?