dx9 and shaders

[Stefan Dösinger]

Hi,
> I'm not sure you can do that like that. lock.pBits is allocated with
> HeapAlloc, and it looks like DIB_CreateDIBSection expects memory
> allocated with VirtualAlloc, judging by a quick look at the code and
> the commit comment here:
You could be right with this: I've checked in ddraw, and it allocates the 
surface memory with VirtualAlloc. I'll look at this

What is the relevant difference between HeapAlloc and VirtualAlloc? I've read 
the msdn pages, and I couldn't find anything that would make a crucial 
difference for a bitmap.

Stefan
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