VGACAP v7.7 Copyright 1987-91 Lawrence & Marvin Gozum, MD. VGACAP captures MCGA/VGA 320x200x256 or SVGA 640x480x256, 800x600x256 and 1024x768x256 screens. VGACAP74.ZIP includes VGAFIL to convert 256-color 320x200, 640x480, 800x600 or 1024x768 grabs to GIF, PCX, BMP (Windows 3.0) and TGA (Targa 16), as well as hardcode VGACAP for FAST, SVGA SCREEN GRABS. VGACAP now supports fast VGA/SVGA captures for 640x480x16, 800x600x16 and 1024x768x16 !!! You can also view VGACAP and VGAFIL as a generic conversion utility since almost any MCGA/VGA/SVGA image from (320x200 to 1024x768) that can be viewed, can be converted to GIF, PCX, BMP or TGA format ! VGACAP77.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 v7.7 * BUGFIX: Total overhaul of 1024x768x256 grab routines. * BUGFIX: Trident bank switching code modified to force 64KB paging with single page mapping. * VGAFIL v2.7 now encodes BMP files via a special color reduction and remapping routine to virtually eliminate "hotspots" when BMP images are remapped by Windows 3.x; resulting in FASTER LOADS too ! * VGAFIL v2.7 cosmetic overhaul (similar to MVGAVU). * VGAFIL v2.7 now incorporates faster PCX encoding. * VGAFIL v2.7 BUGFIX: missing right column of pixels with odd image PCX sizes; corrected. * VGAFIL (v2.7) BUGFIX: "0" lenght PCX, BMP and TGA files did not trigger the right error code (ie., unsupported image dimensions); corrected. Update v7.6 * BUGFIX: C&T 1024x768x16 and 1024x768x256 bank switching code code got exchanged, thereby messing up each other; corrected. * BUGFIX: Video7 1024x768x16 and 1024x768x256 bank switching code code got exchanged, thereby messing up each other; corrected. Update v7.5 * BUGFIX: Trident SVGA bank routines were still flawed (we tried to accomodate the rare BR version of the TVGA chip), resulting in erroneous bank switching; corrected by restoring the standard 64KB TVGA 8800/8900 banking code. * Added a new 'Trident' SVGA bank switching mode labelled 'Zymos'; this is essentially similar to Trident 8800/8900 chipset BUT with similar WRITE/READ bank switching routines. * VGAFIL (v2.5) customization menu updated to accomodate 'Zymos' setting. * BUGFIX: Video7 1024x768x16 grabs required a different bank switching routine; added 16-color bank switching code. * BUGFIX: C&T 452/453 1024x768x16 grabs required a different bank switching routine; added 16-color bank switching code. Update v7.4 * Added FAST SVGA 1024x768x256 capture funtionality. * Added FAST SVGA 1024x768x16 capture funtionality. * Added FAST SVGA 800x600x16 capture funtionality. * BUGFIX: SVGA C&T 452 and 453 bank routines were flawed; corrected. * VGAFIL (v2.4) now avoids sign-on screen if REGISTER.OVL is detected and verified; saves you a keystroke. Update v7.3 * BUGFIX: When VGACAP is loaded and one or more files are saved, subsequent reloading of VGACAP would be accepted (ie., two or more VGACAP resident files would be permitted); corrected. * Added Ahead-B chipset support (VGA Wizard). * VGAFIL (v2.3) MAJOR BUGFIX: Some combinations of DOS and environment variables resulted in "0" lenght PCX, BMP and TGA files (something to do with too many or conflicting DOS file handles); corrected! * VGAFIL (v2.3) FASTER PCX encoding. 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 . * 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, PC Craft... Tseng 4000 -------- STB 4000, Orchid Pro II, Speedstar Boca, Everex VRAM, Legend... 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.