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1993-06-23
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Dvpeg 2.6 - dvpeg.doc file
---------------------------------
Use: Dvpeg is a DOS based (286 or up) JPEG / GIF viewer that will run
under DOS, Windows, OS\2.
The JPEG conversion code came from the Independant JPEG Group (more
info is in the source code file) and a lot of the video drivers came from
the vgakit41.zip. Their code was free so this is as well.
To run dvpeg use: dvpeg
or dvpeg picture_name or list_of_picture_names_with_spaces
or dvpeg <drive> :\ <path> \ <file_mask or file_name>
Option: If you give a list of picture names followed by a '-' character
DVPEG will show the pictures (pausing for a keypress) and then automatically
exit.
ADVANCED OPTION: You can pass the name of a config file to DVPEG by giving
it as the first arguement. This way you can have several different
configuration files for networks ...
Advanced Option
---------------
The first file <path> \ file_name passed to dvpeg will be tested to see
if it is a configuration (dvpeg.cfg) file. This allowes network users
to direct the program to a configuration file that has been setup for
a certain video card and have several configuration files available. It
also allows normal users to create several configuration files; save them
under different name; and use them for different defaults ...
Memory requirements: Dvpeg will use a lot of memory if the image is going
to be panned (typically 1+ meg) and will look for EMS or extended memory.
If no memory can not be found it will use the hard drive to store the
temporary information (much slower). So if you want to see something fast
setup about 1 - 2 megs of EMS or XMS. If you are running out of memory
then give it some more (some of those 1600 * 1200 images will use 4+M if
you are panning a hi_color image!).
Memory Problems: If you are running out of memory then most likely it is
the 'low' or below 640k memory. You will have to remove some drivers or
other items that are using the lower memory. One way to free up a bit of
memory (and speed up viewing) in DVPEG for JPEGs is to:
- use the 1 pass quantizer or Grey scale
- turn off cross block smoothing (defaults to off)
- turn off the panning (you can still shrink the image as it shows)
To find out about options use just hit F1 at any time.
Check the read.me file for detailed information about vidsetup.exe, dvpeg.exe,
dvpeg286.exe
Basically:
vidsetup.exe - allows setting of defaults for the viewer (dvpeg) and
testing of video modes
dvpeg.exe - 386/486 jpeg/gif viewer
dvpeg286.exe - 286 jpeg/gif viewer
Please send any comments / suggestions to praetzel@sunee.uwaterloo.ca
P.S. Many thanks to my beta testers and those who shared their knowledge.
I would also like to thank Tom Lane and the IJG along with various
people who have compiled video information (VGAKIT, VGADOC) that is on
most big sites.
- Eric (praetzel@sunee.uwaterloo.ca)
******************************************************************************
This is a list of the supported cards and modes.
IT IS NOT COMPLETE. CHECK VIDSETUP FOR THE FULL LIST OF SUPPORTED MODES
(or the file modes.h in the source code).
Not all cards from a Mfg will support all of these modes. In most cases you
will need 1 Meg of video ram for the hi resolution modes and some modes (like
the hi_color ones) are recent additions and only supported by the most recent
cards sold. To test a certain mode on your video card/moniter setup use
vidsetup.exe Usually if the mode is not supported the video card locks up
and you can't get back to the text screen. The only solution is to reset
the computer.
Diamond SpeedStar 24X, Paradise, WD compatable cards
----------------------------------------------------
** All modes for this card have to be added by hand. The card is not
** automatically detected.
All modes for this card should be supported.
=============================================================================
S3 based cards
--
** All modes for this card have to be added by hand. The card is not
** automatically detected.
=============================================================================
AHEAD (A & B chipsets)
-----
width height colors Direct Mode
----- ------ ------ -----------
0x60 640 400 256 R
0x61 640 480 256 S
0x62 800 600 256 T
===============================================================================
ATI
---
width height colors Direct Mode
----- ------ ------ -----------
0x61 640 400 256 R
0x62 640 480 256 S
0x63 800 600 256 T
0x72 (hi_color) 640 480 32,768
0x73 (hi_color) 800 600 32,768
0x75 (24 - bit) 630 480 16 million
===============================================================================
CHIPS & TECH
------------
width height colors Direct Mode
----- ------ ------ -----------
0x78 640 400 256 R
0x79 640 480 256 S
0x7b 800 600 256 T
===============================================================================
EVEREX
------
width height colors Direct Mode
----- ------ ------ -----------
0x13 640 350 256
0x14 640 400 256 R
0x15 512 480 256
0x30 640 480 256 S
0x31 800 600 256 T
===============================================================================
OAK TECH
--------
width height colors Direct Mode
----- ------ ------ -----------
0x53 640 480 256 S
0x54 800 600 256 T
===============================================================================
GENOA GVGA
----------
width height colors Direct Mode
----- ------ ------ -----------
0x7d 512 512 256
0x5b 640 350 256
0x7e 640 400 256 R
0x5c 640 480 256 S
0x5d 720 512 256
0x5e or 0x6c 800 600 256 T
===============================================================================
NCR
---
width height colors Direct Mode
----- ------ ------ -----------
0x5e 640 400 256 R
0x5f 640 480 256 S
0x5c 800 600 256 T
===============================================================================
PARADISE
--------
width height colors Direct Mode
----- ------ ------ -----------
0x5e 640 400 256 R
0x5f 640 480 256 S
1M card is also supported seperately. These have to be added by hand with
vidsetup.exe Do not allow the autodetection program to run (ie hit N to
avoid it when you run vidsetup or else your BIOS setting may be destroyed).
===============================================================================
TRIDENT
-------
width height colors Direct Mode
----- ------ ------ -----------
0x5c 640 400 256 R
0x5d 640 480 256 S
0x5e 800 600 256 T
===============================================================================
TRIDENT 8900
------------
width height colors Direct Mode
----- ------ ------ -----------
0x5c 640 400 256 R
0x5d 640 480 256 S
0x5e 800 600 256 T
0x62 1024 768 256 X
===============================================================================
TSENG (Genoa, Orchid, Willow)
-----
width height colors Direct Mode
----- ------ ------ -----------
0x2d 640 350 256 R
0x2e 640 480 256 S
0x2f 720 512 256
0x30 800 600 256 T
0x38 1024 768 256 X
===============================================================================
TSENG 4000
----------
width height colors Direct Mode
----- ------ ------ -----------
0x2d 640 350 256
0x2f 640 400 256 R
0x2e 640 480 256 S
0x30 800 600 256 T
0x38 1024 768 256 X
0x13 (hi_color) 320 200 32,768
0x2d (hi_color) 640 350 32,768
0x2f (hi_color) 640 400 32,768
0x2e (hi_color) 640 480 32,768
0x30 (hi_color) 800 600 32,768
===============================================================================
VIDEO7
------
width height colors Direct Mode
----- ------ ------ -----------
0x66 640 400 256 R
0x67 640 480 256 S
0x68 720 540 256
0x69 800 600 256 T
0x6A 1024 768 256 X
===============================================================================
VESA
----
width height colors Direct Mode
----- ------ ------ -----------
0x13 320 200 256
0x100 640 400 256
0x101 640 480 256
0x103 800 600 256
0x105 1024 768 256
0x107 1280 1024 256