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1993-12-01
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MVGAVU v4.1 (c) Copyright 1989-1991 Lawrence & Marvin Gozum, MD.
TARGA 16/24/32 Viewer and GIF 87a/89a Decoder/Slideshow
for EGA/MCGA/VGA/SVGA cards.
MVGAVU41.ZIP MUST INCLUDE THE FOLLOWING
****
README 1ST This doc.
BRUN41 EXE Runtime module
MVGAVU EXE Main Program
REGISTER DOC Registration Form
MVGAVU DOC User Manual
EVERX512 CFG 512x512x256 user mode for Everex (see user comment)
CHIPS768 CFG 720x540x256 user mode for C&T 452/453
GENOA512 CFG 512x512x256 user mode for Genoa 5x00 series
GENOA720 CFG 720x512x256 " " " " " "
GVGA-512 CFG 512x512x256 user mode for Genoa 6x00 series
GVGA-720 CFG 720x512x256 " " " " " "
WD90C11 CFG 800x600x256 user mode for WD90C11 (Paradise) chip
STBAUTO CFG 528x480x256 user mode for STB Auto (w/ Tseng3000 chip ?)
STBEM960 CFG 960x720x16 user mode for STB EM
V7-720 CFG 720x540x256 user mode for Video7 (see user comment)
Update v4.1 * TARGA-16, TARGA-24 and TARGA-32 support added !!!
* BUGFIX: Tseng4000 video mode routines, except the
1024x768x256 mode and UserMode <at least>, were compiled
with the wrong object module <YECK!>; corrected.
* BUGFIX: TARGA files with an "imagedes" field <> "0"
were rejected; corrected.
* NEW PALETTE FUNCTIONS
- All Contrast/Brightness/Color functions now use
BIOS to minimize "flash" from direct DAC access.
- Gradual Contrast Enhancement function added
- Gradual Contrast Reduction function added.
- Separate RGB component adjustment.
- Color saturation function maintains hue integrity.
* Sign-On screen is now bypassed if REGISTER.OVL is
detected and verified.
* After viewing a file, the user is now returned to the Main
Menu and can select other options or viewing modes instead
of reselecting a new file for viewing.
Update v4.0 * FASTER! Code optimation yields overall speed improvement
(15% to 25% faster in 256-color modes, up to 200% faster
for HercGS extended 256-color modes).
* "NEVER SEEN BEFORE" TARGA 16-BIT (32768 COLOR) VIEWING !!!
- NEW 256-color rendering method closely replicates the
actual Targa-16 file with A LOT OF COLOR DEPTH in SVGA
256-color modes.
- NEW 256-color matching/rendering method for 320x200x256,
320x400x256 and 360x480x256.
- NEW 16-color matching/rendering method for all EGA, EEGA,
VGA and SVGA modes.
- All AutoSizing and AutoAspect functions work with these
rendering schemes.
* Added 640x480x32768 HercGS mode for viewing Targa-16 files.
* Added missing 640x400x256 HercGS mode.
* "Fix Aspect TGA" processing option added for viewing
Targa-16 files.
* Enhanced 16-color rendering when used with "Fit to Screen"
processing option; adds alternating pattern for improved
color depth perception.
* BUGFIX: Hitting <Esc> after viewing with a HercGS card
did not reinitialize VGA <it hung>; corrected.
* BUGFIX: When viewing images in 320x400x256 or 360x480x256
modes with GIFs that were smaller than screen size; the
wrong display routine was used - resulting in garbage;
corrected.
* BUGFIX: Trident chipset read/write routines were flawed;
corrected <works with Zymos chip-based cards too> !
* BUGFIX: Tseng4000 and EverexVRAM video modes were
exchanged (major bug !); BOTH are now corrected <whew>!
* BUGFIX: EGA color matching of VGA 16-color images had a
red tint; corrected.
* BUGFIX: Interpolation of LARGE GIFs to 320x200x256
lost one pixel on extreme left edge; corrected.
* BUGFIX: Random Block and Random Line transition effects
used the last background color of a MIG, if viewed,
instead of the screen backgorund color; changed to screen
color "0".
Update v3.0-3.4 * TOTALLY NEW, SIMPLIFIED !!!
* AUTOMATIC MODE OR SLIDESHOW SELECTION
- 320x200x256 MCGA
- 320x400x256 MVGA
- 360x480x256 MVGA
- 640x350x16 EGA
- 640x400x16 MVGA
- 640x480x16 VGA
- 800x600x16 SVGA
- 640x350x256 SVGA
- 640x400x256 SVGA
- 640x480x256 SVGA
- 800x600x256 SVGA
- 1KBx768x256 SVGA
* HARDCODED CHIPSET/VIDEO MODE SETTING FOR:
MCGA or PS/2 30
EGA/EEGA/VGA (BIOS)
VGA or PS/2 50
ATI --------------- Tatung,Altec,Gateway,TeleMart,TriStar...
Tseng 4000 -------- STB 4000,Orchid Pro II,Boca,...
Tseng 3000 -------- STB,Sigma,Orchid,Willow,Genoa 5x00,...
Paradise ---------- AST,ARC,AT&T,CompuAdd,Compaq,old Dell,
DEC,Epson,NCR,Olivetti,Tandy,Toshiba...
Video7 ------------ new Dell,Video7 FW/VRAM...
Video7/Headlands -- Video7 1024i
Genoa GVGA -------- Genoa 6100,6200,6300,6400,6600
C&T 452/453 ------- Cardinal,MK82452,Data General...
C&T 451/455/456 --- Cardinal, various laptops
Trident 8800/8900 - Imtec,Logix,Maxon,Prism,Zymos,HiRes...
Everex EV678 ------ Everex Viewpoint
Everex VRAM
Everex EV673
Ahead-B ----------- VGA Wizard
Oak
Tecmar VGA/AD
* Hercules Graphics Station support added to 1024x768x256.
- Full GIF 89a functionality
- Full VGA downward-compatibility maintained
* AutoCentering feature added.
* "NEVER SEEN BEFORE" 16-COLOR RENDERING METHOD
for EGA, VGA and SVGA
- say goodbye posterization, this one is superior !
- all 89a options and MVGAVU processing options work with
this rendering scheme.
* SLIDESHOW TRANSITIONS
- Fade to Black
- Vertical Blinds
- Random Blocks
- Vertical Lace
- Random Lace
- Random Effect
* FULL 89a IMPLEMENTATION
- Multiple Image GIFs (MIGs)
Auto-sizing adjusts to fit any/all MIGs regardless of
video mode selected - from 320x200x256, 360x480x256 up
to 1024x768x256 !!!
- Transparency
- Restore to Background
- Timed/User Input
- Plain Text Rendering
Features "mini" 3x6 font for plain text rendering in
320x200x256, 320x400x256 and 360x480 modes; and,
automatic selection and resizing of EGA/VGA system fonts
for optimal rendering of plain text.
- Restore to Previous
Automatic detection of LIM expanded memory for rendering
those GIF89a crashers that defy the 64KB convention !
* Slideshow now avoids using the delay routine before the
first file is shown.
* "OneMeg w/ MIGs" processing option added.
* BUGFIX: "OneMeg w/ MIGS" processing option and AutoMode
option had random interactions; corrected.
* BUGFIX: Ahead-B card setting was being rejected; corrected.
* BUGFIX: AutoCentering function affected "Fit To Screen"
modified coordinates when it wasn't required; corrected.
* BUGFIX: If an image was not viewed via AutoMode or direct
mode selection, the Slideshow "hung"; corrected.
* BUGFIX: UserMode routines were "confused"; corrected.
* BUGFIX: Everex VRAM and Ahead-B UserMode hardware settings
were pointing 'elsewhere'; corrected.
* BUGFIX: The AutoMode <return> key was disabled in
"Safety /w MIGS" and "Normal w/ MIGS" mode; corrected.
* BUGFIX:Headlands/V7VGA SVGA 16-color bank switching
code for 1024x768x16 mode was 'misplaced'; corrected.