RELEASE.TXT FILE  FOR  TSENG LABS WINDOWS 95 DISPLAY DRIVER


Tseng Labs, Inc.
Tseng Labs Windows 95 Display Driver for ET6000/ET6100 
(C) Copyright 1997. Tseng Labs, Inc.
All rights reserved.

______________________________________________
NOTE FOR USERS INSTALLING THIS RELEASE OVER RELEASE 5 OR EARLIER!
THE METHOD OF  HANDLING INTERNAL DRIVER VERSION NUMBERS WAS CHANGED WITH RELEASE 6. 
AS A RESULT, A PROBLEM WAS ENCOUNTERED WHICH WAS  RECTIFIED BY CHANGING THE DRIVER FILE 
NAMES. THE  FILES , TSENGET6.DLL, TSENGET6.DRV, AND TSENGET6.VXD IN RELEASE 5 WERE REPLACED BY  
TLIET600.DLL, TLIET600.DRV, TLIET600.VXD .

DRIVER INFORMATION

                Driver Name: 		Tseng Labs Windows 95 Display Driver for ET6000/ET6100 
                Driver Date:		7/25/97
                Driver Chip Support:	ET6000/ET6100
                Driver Release:		7 
                Driver Version:		4.03.5000


DRIVER FEATURES ADDED FOR THIS RELEASE  

******* ver 4.03.5000 ********
Changes from Release 6 (Version 4.03.4800 04-24-97)

*  Removal of .INI settings.  To stay compliant with PC-98
   the driver cannot access options via the "win.ini" or 
   "system.ini" files. The win.ini options used by previous versions
   of the driver are not accessed by this driver. 

*  Full Support of ET6100

The following modes are available in the driver to support the Tseng Labs ET6100 chip only:
	1600x1200x8bpp @ 65hz

	1024x768x24bpp @75hz
	1024x768x24bpp @85hz

	1152x864x24bpp @60hz
	1152x864x24bpp @70hz

	1280x1024x16bpp @70hz
	1280x1024x16bpp @75hz
	1280x1024x24bpp @43hz interlaced

	1600x1200x16bpp @47hz interlaced

*  Fixed Floating Point bug in the ellipse/circle/round rectangle code.

*  Added 720x480 mode support for newer BIOS's.

*  Added 1152x864 mode support. 



BASIC DRIVER FEATURES

Basic MiniDriver Functionality

The driver supports identical accelerated functionality in all pixel 
depths 8/16/24. For operations that can use Raster Ops the driver uses 
the Accelerator in all cases. HiColor (16Bpp) modes are 565.  The driver 
uses Linear Addressing (not VFLATD bank switching) in all modes.

This driver also utilizes Device Bitmaps to provide improved acceleration.
If there is enough Offscreen Memory available, Color Bitmaps that normally 
would be allocated in Host/System Memory will be allocated in Screen Memory
allowing the ET6000 to be used to operate directly on those bitmaps. There is
accelerated support for the Color Bitmaps listed below when they reside in Video 
RAM. If there is not enough room for a particular bitmap then the DIB Engine
is used to render those.


The minidriver utilizes the ET6000 to accelerate the following:

	Legend: S - Screen, C - Color Bitmap - Host Memory, M - Mono Bitmap


	BitBlt, CtoS, All ROPS (this includes PatBlt) 
	BitBlt, StoS, All ROPS (this includes PatBlt)
	BitBlt, MtoS, All ROPS
	PatBlt, C, Mono Pattern, All ROPS
	PatBlt, S, Mono Pattern, All ROPS
	Lines,C, Horizontal/Vertical/Diagonal
	Lines,S, Horizontal/Vertical/Diagonal
	Polygon, C & S
	Rectangle, C & S
	Scanlines, C & S
	Ellipses, C & S
	Circles, C & S
	Rounded Rects, C & S
	Text, C & S, All Fonts
	Hardware Cursor, all modes, when Cursor is mono


	Automatic Refresh Rate selection based on Monitor Info and
	DDC1 monitors are supported in the driver.


The DirectDraw Portion of the Driver supports the following: 

     *  DirectX 2.0, 3.0, 3.0a and 5.0 betas (DirectX 1.0 is no-longer supported)


     *  Support for the following Low Resolution Modes 
         at 8 & 16 & 24 Bpp:

         320x200
         320x240
         512x384
         640x400


     *  Primary Surface Access
     *  Accelerated Transparent Blt (arbitrary Transparent Color)
     *  Full Screen Page Flipping
     *  BitBlt S&D Rops
     *  2 Overlay Windows (1 Page Flipped Overlay) (RGB 16/24 or YUV422)





NOTES - GENERAL

The driver is installed through the normal Windows 95 Control Panel 
mechanism as presented in the README.TXT file in this directory.

 
To accelerate Video file playback using DirectDraw, DirectVideo or ActiveMovie must be installed.  




