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- PixView v2.0beta a GIF/JPEG viewer for DOS.
- (C) Copyright 1993-95, All Rights Reserved
- by Davide Rossi
- Vicolo Zanella 55B
- 31100 Treviso, Italy
- E-mail: rossi@cs.unibo.it
-
- Description:
- ------------
- PixView is a smart viewer for GIF and JPEG files. It needs a VGA or SVGA VBE
- (VESA BIOS Extension) compliant adapter and 450K or so of free memory.
- The VBE can be embedded in your adapter's ROM or loaded using a TSR program
- that should be supplied by the adapter's vendor.
- If you are not able to find this driver you can try to give a look to the
- PixBase package which contains many VBE drivers.
- Using PixView, while in the graphics screen, you can change on the fly the
- display resolution, pan the image across the screen (even using the mouse),
- and shrink the image to the actual screen size.
-
- This program is freeware. A full-featured version, called PixView Pro is
- also available for $ 20. The pro version allows the use as command line
- utility, has true color support, load-while-display feature for slide
- show and optimized compilation.
- Read the file pixview.pro for further information.
- Anyway I'd really appreciate a postcard if you use PixView freeware
- version, thanks!
-
- Installing PixView
- ------------------
- Installing PixView is an easy task. Put the program along with cswdpmi.exe
- in any directory you like.
- cwsdpmi.exe is a DPMI server and is used by PixView in order to access
- all the extended (or even virtual) memory available on your computer.
- You may not need cwsdpmi if you have another DPMI server installed on your
- system (like qdpmi or 386Max); even Windows is a DPMI server so you could
- run PixView under a Windows' DOS session but this way you will slow down
- the program.
- Please read cwsdpmi.doc for futher information about cswdpmi.
- The latest version of cwsdpmi can be retrived from
- ftp://ftp.neosoft.com/pub/users/s/sandmann
- also the sources are available on the same site.
-
- The file scroll list:
- ---------------------
- A list of the files in the current directory is displayed in the middle of
- the screen.
- The directories are in upper case.
- To change the selected item use the cursor keys, page up and down, home
- and end.
- To change the current directory to the selected one hit the return.
- To display the selected picture file hit the return key.
- To tag the selected file use the INS key or the spacebar.
- To tag all the files use the + key.
- To untag all the files use the - key.
- To change the current drive hit F10.
- All of the operations above can be done using the mouse. To emulate the return
- key just use a left button double click. Some option is also displayed on
- the bottom-bar and can be activated with a mouse click.
-
- The graphics screen:
- --------------------
- While in the graphics screen you can use the + and - keys to change the
- display's resolution. If the image is smaller than the actual screen size
- the program will show it in the middle of the screen.
- If the image is bigger than the actual screen size you can pan across it
- using the arrow keys or moving the mouse.
- If you want to examine a detail of the picture you can set the minimum
- resolution (320 x 200) and pan the image to find the detail you want to
- look at.
- If you want to shrink the whole picture to the current display size use the
- 's' key.
-
- The slide show:
- ---------------
- Use F2 to start a slide show with the tagged files.
-
- The option menu:
- ----------------
- Use F9 to invoke the option menu. Hereunder are explained the options
- you can change.
-
- Slide show:
- Auto shrink to fit (yes/no):
- the image in automatically shrinked if
- larger that the screen resolution.
- Untag once loaded (yes/no)
- Loop (yes/no)
- Delay (sec.) (0..60):
- if 0 is set then the slide show will wait until a key
- (or a mouse button) is pressed.
- Confirmations:
- Ask before exit (yes/no)
- Ask before delete (yes/no)
- JPEG:
- FS quantization (one pass/two pass):
- one pass: a fixed palette is used to display a JPEG image in
- 256 colors modes.
- two pass: an optimized palette is used to display a JPEG
- image in 256 colors modes (Higher quality but slow).
- Show as (stored/grayscale):
- stored: JPEG pictures are displayed as stored (color or
- grayscale)
- grayscale: JPEG pictures are displayed in grayscale
- (Useful for fast preview).
- Dithering (none/FS/ordered):
- none: no dithering is used when a JPEG picture is displayed
- in 256 colors mode (The image looks quite bad...)
- FS: an error-diffusion dithering (known as Floyd-Steinberg)
- is used when a JPEG picture is displayed in 256 colors mode
- (Higher quality but slow).
- ordered: an error-addiction dithering (known as ordered) is
- used when a JPEG picture is displayed in 256 colors mode
- (Fast and dirthy).
- Mode selection policy: (force 256/hi->256/force hi)
- if a "force" policy is set only that mode will be used.
- If a "->" mode is set the first mode is used only if
- the maximum mode resolution is big enough to display
- the whole picture, else the following mode is used.
- Pro version only: the followin options are available:
- force 256/hi->256/force hi/true->hi/true->hi->256/
- force true
- Use hicolor dithering (yes/no):
- this option allows you to use a dithering algorithm
- for hicolor modes that gives a quality near to true
- color.
- Mask (*.*/*.gif/*.jpg/*.gif;*.jpg).
- Sort (no/by name/by extension/by size).
- Beep once loaded (yes/no).
- Load image in memory (yes/no):
- You have to load the image in memory in order to use panning,
- zooming, etc...
- Video mode (256 colors modes/15 bits hicolor modes/16 bits hicolor modes/Truecolor modes)
- use video mode <resolution> if availalbe:
- this option allows you to exclude some video mode
- if you don't like it (640x400x256 if quite bad) or
- if your card can set that mode but your monitor
- can't display it.
- Pro version only: Color order (under Truecolor modes) BGR/RGB
- set video card color ordering.
-
- Acknowledgements & credits:
- ---------------------------
- The Graphics Interchange Format(c) is the Copyright property of
- CompuServe Incorporated. GIF(sm) is a Service Mark property of
- CompuServe Incorporated.
-
- All other trademarks and registered trademarks are the properties of their
- respective holders.
-
- The JPEG decoder is based on the Independent JPEG Group's software,
- Copyright (C) 1995 Tomas G. Lane.
-
- The GIF decoder is loosely based on a work done by Steven A. Bennett
- and Steve Wilhite.
-
- This program is compiled using djgpp v2. A great tool for developing
- DOS-based 32bit application.
-
- Disclaimer:
- -----------
- This software is provided as is without any guarantees or warranty.
- Although the author has attempted to find and correct any bugs in the
- program, he is not responsible for any damage or losses of any kind caused
- by the use or misuse of the program.
-
-
- Have fun!!!
-