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VGACAP.NEW
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1993-12-01
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VGACAP v7.2 Copyright 1987-91 Lawrence & Marvin Gozum, MD.
VGACAP captures MCGA/VGA 320x200x256, VGA 640x480x16, or SVGA 640x480x256
and 800x600x256 screens. VGACAP72.ZIP includes VGAFIL to convert grabs
to 320x200, 640x480, or 800x600 GIF, PCX, BMP (Windows 3.0) or TGA
(Targa-16), as well as hardcode VGACAP for FAST, SVGA SCREEN GRABS.
You can also view VGACAP and VGAFIL as a generic conversion utility since
almost any MCGA/VGA/SVGA image from (320x200 to 800x600) that can be viewed,
can be converted to GIF, PCX, BMP or TGA format !
VGACAP72.ZIP MUST INCLUDE
README .1st This doc.
VGACAP .COM TSR Capture Utility
VGACAP .DOC User Manual
VGAFIL .DOC GIF/PCX/BMP/TGA encoder
BRUN41 .EXE Runtime Module
Update v7.2 * FAST VGA 640x480x16 grabs
- Automatically detects VGA 640x480x16 mode and
jumps to appropriate routine.
- Works in BIOS or ANY SVGA hardcoded setting.
* VGAFIL (v2.2) - adds "-H" option for "hex" (ie., 16-color
GIF encoding. No need to rename files to NYBLSCRN.*
anymore; now you encode as many as you want in one
sitting without getting out of VGAFIL.
* BUGFIX: Trident 8800/8900 and Zymos routines for fast
SVGA grabs were flawed; corrected.
Update v7.1 * BUGFIX: GVGA code was "misplaced"; corrected.
* BUGFIX: Tseng 4000 was in write bank only; this has been
modified for READ and WRITE bank operations.
* VGAFIL (v2.1) - adds "-C" to configuration option to
maintain common interface with MVGAVU and other utils
we will release.
Update v7.0 * VGAFIL (v2.0) now supports Targa 16 (uncompressed TGA)
format for those who want to edit/modify SVGA screen grabs
with XGA, Hercules Graphics Station, Targa and other cards
that support 32KB, 64KB, or 1.6MB colors !
* BUGFIX: When VGAFIL was used in COMMAND LINE mode and the
RAW files were not located in the default directory or
drive, "0 x 0" images were encoded and subsequent system
"hang" resulted. This has been corrected <whew!>.
* SVGA 640x480x256 and 800x600x256 hard-coded for DIRECT
memory/bank access; captures in about 2-3 seconds (based
on SX with 28 ms. hard disk). The following SVGA chipsets
are supported and can be configured with VGAFIL.
ATI 18800/28800 --- VGA Wonder, Tatung, Altec, Gateway,
TeleMart, TriStar...
Tseng 4000 -------- STB 4000, Orchid Pro II,
Boca, Everex VRAM...
Tseng 3000 -------- STB, Sigma, Orchid, Willow,
Genoa 5x00, Tecmar VGA/AD,...
Paradise ---------- AST, ARC, AT&T, CompuAdd, Compaq,
old Dell, DEC, Epson, NCR, Olivetti,
Tandy, Toshiba...
Video7 v1-4 ------- new Dell, Video7 FW, Video7 VRAM ...
Video7/Headlands -- Video7 1024i
Genoa GVGA -------- Genoa 6100,6200,6300,6400,6600
C&T 452/453 ------- Cardinal, Data General...
Trident 8800/8900 - Imtec, Logix, Maxon, Prism, HiRes...
Zymos TVGA 88/8900- Imtec, Logix, Maxon, Prism, HiRes...
Everex EV678 ------ Everex Viewpoint
Oak --------------- (no examples)
BIOS -------------- (100% BIOS pixel read & palette usage)
* Custom Western Digital PVGA (Paradise) support for WD90C01,
WD90C10 and WD90C11 chipsets; forces single bank select
just in case you capture while viewing with a program that
uses the dual bank switching mode or new 800x600x256 mode
supported by WD90C11 chip.
* Genoa GVGA 6100, 6200, 6300, 6400, 6600 chipset support.
These cards are radically different from the 5x00 series.
* Headlands/V7VGA4 (Video7 Version 5 chipset) support added
for those with Video7 1024i SVGA cards (or clones, if any).
* Video7/V7VGA (Version 1 to 4) chipset support modified for
increased compatibility, read/write operations and speed.
* New Trident TVGA 8800/8900 chipset support. Forces 64KB
bank switching mode and adjusts for the weird bank
numbering scheme. Customized for read bank operations.
* Optional Zymos/Trident TVGA 8900 chipset support using a
linear/normalized 64KB bank switching scheme (just in case
some chipsets fix/normalize the weird bank numbering
scheme). Customized for read bank operations.
* New Chips & Technologies support for 452/453 versions.