From:	"Joel_S" <jbs30000 DOT news DOT invalid AT web2news DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	fread into mapped memory
Date:	Thu, 06 Mar 2003 07:30:56 +0100
Organization:	Web2news.com
Message-ID:	<17824N256@web2news.com>
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

OK, a while ago, I was making SVGA routines using
__djgpp_nearptr_enable() for linear frame buffers.  But now I've
decided, for compatibility with Windows 2000 and XP I'll remake them and
map the linear frame buffer with __dpmi_physical_address_mapping and
__dpmi_allocate_ldt_descriptors.
One thing though.  For a fast BMP routine, I'd copy data directly from
the file to the screen.  But I can't do that if I map the memory right? 
I mean, I know I could probably do something, like make a buffer, copy
the picture to that, and then copy data from the buffer to the screen,
but is there a way I could fread or in any other way copy data from a
file to a mapped memory location?  Thanks.
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