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1995-06-22
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*************************************************************************
Viper PCI/Viper VLB Win95 Preliminary Drivers
Release Notes - 22 June, 1995
*************************************************************************
Updates:
5 Apr 95 - Initial pre-release
6 Apr 95 - Fixed palette bugaboo w/ dos boxes in Viper.VxD
11 Apr 95 - Fixed problem w/ 'Shutdown to MSDOS mode'
12 Apr 95 - Fixed a DIB problem (improved AVI performance)
13 Apr 95 - Found the b440 DOS window problem in the VXD.
19 Apr 95 - Fixed problem w/ Visual Basic forms in all color
depths also removed 2 invalid modes from viper.inf
21 Apr 95 - Fixed Shutdown/DOS hang problems (?)
25 Apr 95 - Fixed minor palette init problem that caused color
shifts with "Desert" and like schemes when changing
resolutions.
3 May 95 - Fixed Viper.INF to prevent spurious filenotfound error
Expand Viper.zip into an empty scratch directory (like C:\VIPER\WIN95)
DO NOT expand these either into your Windows System directory or into a
directory containing the Win3.1 drivers!
Before installation, reset Win95 to the 'standard VGA driver',
reboot, then install using Win95 Display Properties / Settings / Change
Driver / Have Disk...
You still need a VIPER.INI file (created by VPRMODE) stored in c:\viper
or another path pointed to by SET VIPERPATH=
Note: You may need to edit WIN.INI, and remove the [DrawDib] section to
allow Video for Windows to retest the new driver and optimize itself.
This hopefully will be done automatically in a later version...
This is only needed for a upgrade from a version before 11 April
to a more current one!
(See 'Known Problems' at end...)
These drivers support 256 colors, 32768 colors, and 16777216 colors.
These drivers support 640x480, 800x600, 1024x768, 1152x900, and
1280x1024 resolutions.
256 32k 16M
====================
640x480 1MB 1MB 2MB
800x600 1MB 1MB 2MB
1024x768 1MB 2MB -na-
1152x900 2MB -na- -na-
1280x1024 2MB -na- -na-
This is a very unofficial release! These drivers have not yet received
thorough application testing. They _have_ been 'smoke tested' w/ the
DCT.
Test Matrix: (these tests were all done w/ the 5Apr version, later
versions are just being tested on PCI versions, unless
another VLB specific problem crops up)...
board/mem/version Bios tested 256 32k 16M
===========================================================
Viper PCI 2MB A7 3.10 x x x
Viper PCI 2MB B2 3.09 x x x
Viper VLB 2MB E4 3.13 x x x
Viper VLB 2MB D3 2.04 x x x
Viper VLB 2MB A7 1.12 x x x
Known Problems:
* At 16bpp (32k colors) or 32bpp (16M colors), stretched .AVI
files are rather slow (many frames dropped). Also, at 32k and
16M colors, AVI files in "MS Video One" format perform poorly.
* Color/Animated cursors are NOT supported. Sorry!
* These drivers have not undergone much application compatibility
testing yet.
* Bitblt performance is only optimized for 256 color modes.
* DO NOT TRY TO RUN THE OLD DIAMOND VIPER CONTROL PANEL! IT WILL
GPF!
* Do not try to use the DPMI Diamond power management application
either, it won't work right.
* 32k color color mode has some drawing problems (noteably,
the copying files status display has a magenta background...)
* 'BitEdit' (a unsupported tool from the MSDN Library) causes
stack faults at 16 and 32bpp pasting large bitmaps. This seems
to be a problem in BitEdit, it is calling the driver with no
stack space left. It appears that BitEdit causes USER to
recursively call itself numerous times, consuming nearly all
the available stack, until a DeviceBitmapBit driver call
crashes in the prolog.
Contacting DIAMOND
------------------
Diamond can be reached through a number of ways:
Postal Service : Diamond Multimedia Systems, Inc.
2880 Junction Avenue
San Jose, CA 95134
Voice (Main) : (408) 325-7000
Voice (TechSppt): (408) 325-7100 [M-F 6-7; Sat 8-4 Pacific]
[plus 24hr automated help]
FAX (Main) : (408) 325-7070
FAX (Support) : (408) 325-7171
BBS (to 2400) : (408) 325-7080
BBS (9600+) : (408) 325-7175
CompuServe : GO DMNDONLINE
America Online : GO DIAMOND
WEB Server : http://www.diamondmm.com
FTP Server : ftp://ftp.diamondmm.com
All product names listed are trademarks or copyrights of their
respective owners.
=====================================================================
Diamond Multimedia Systems, Inc. (c) 1993-95
(408) 325-7000 All Rights Reserved
=====================================================================
$Id: readme.tx@ 05/03/95 16:45:00 MDEXTER Exp $
=====================================================================