home *** CD-ROM | disk | FTP | other *** search
- *******************************************************************
-
- ATI256.BGI -- A SuperVGA BGI driver for Turbo Pascal and ATI VGA
- -- Using 16-bit read/writes and super optimized code
-
- Thomas Design
- P.O. Box 586
- Stillwater Oklahoma
- 74076
-
- Modes supported:
- 320x200 by 256 - Standard VGA (256k ram)
- 640x400 by 256 - ATI VGA (256k)
- 640x480 by 256 - ATI VGA (512k)
- 800x600 by 256 - ATI VGA (512k)
-
- A 16 color ATI driver supporting up to 1024x768 will soon be available.
-
- *******************************************************************
-
- This is a DEMO 256 color Super VGA driver for Turbo C. Wherever possible
- 16-bit read/writes have been used. Most of the graphics routines execute
- entirely out of the CPU registers so system memory performance won't degrade
- the graphics speed. There are a number of 256 color drivers available and
- all use the same code except for the VRAM segment select routines. This
- makes the 256 color drivers an excellent way to benchmark various VGA boards.
- In our own experience we've noted a large difference in performance between
- 8 and 16-bit VGA boards, and between VGA chipsets.
-
- Because of a BUG in Turbo C we had to create two separate versions of
- each driver for Turbo C and Turbo Pascal. The Turbo C version of the driver
- will hang if you try to use it in Turbo Pascal. If you use the Turbo Pascal
- driver you will get to see the BUG in action! The BUG is that the getmaxx
- and getmaxy values, in fact all the DEVICE INFORMATION block is ignored by
- Turbo C. The only mode that will work properly is the one reported by
- AutoDetect. This means that we had to add extra code to write the correct
- DEVICE INFORMATION block back into the Turbo C graphics unit (or data area).
-
- -----------------------------------------------------------------------------
- Files provided:
- ATI256.BGI -- the 256 color BGI driver for Turbo C
- ATI256.OBJ -- the OBJ version of the BGI driver
- ATIDET.PAS -- source to Autodetect TPU
- ATIDET.TPU -- autodetect TPU
- ATIDET.OBJ -- autodetect routine
- SIMPLE.PAS -- demonstrates use of SVGA driver in BGI format
- SIMPOBJ.PAS -- " " " " " " OBJ format
- SVGADEMO.PAS -- another SVGA demo
- VGAEXTRA.PAS -- source to dacpalette and defines
- VGAEXTRA.TPU -- TPU of dacpalette and defines
- MAKETPU.BAT -- creates an OBJ version of driver and detect TPU
- -----------------------------------------------------------------------------
- -- Notes:
- -- floodfill not implemented. Use fillpoly or fillellipse.
- -- Vertical Text not implemented. Could add later if demand warrants.
- -- 16-bit read/writes. In most cases graphics limited by VRAM
- access times.
- -- OutText has not been optimized. The registered version will
- be faster and smaller.....
- -- Excellent test between graphics cards. 256 color drivers use
- same code except for the VRAM segment select.
- -- To determine if your driver is for TC or Tpascal do the following:
- TYPE ATI256.BGI
- You should see a line of text with a version number for the driver.
- If it starts with "C" such as C.01.02 it is a Turbo C driver.
- The Turbo Pascal drivers start with "P" like: P.01.02
- -----------------------------------------------------------------------------
-
- This driver is a "DEMO COPY" of the real driver. It is about 500 bytes
- larger than the registered version. To register and receive the final
- version with no "DEMO" header send $15.00 via check or money order to:
- Thomas Design
- P.O. Box 586
- Stillwater Ok.
- 74076
-
- - Indicate which driver you want Turbo C or Turbo Pascal
- - You can recieve your copy on either 5 1/4" or 3 1/2" disc,
- so please specify the format.
-
- A version of each driver is also available that only contain:
- -- putpixel, getpixel, line, moveto, outtextxy, getmaxcolor --
- These versions can be used in programs only requiring those routines.
- They are about 1000 bytes smaller than the registered versions.
-
- If you want to use these drivers in a commercial product, do so by linking
- the drivers into the executable. Contact us if you wish to do otherwise.
- -----------------------------------------------------------------------------
- --- Use this form to indicate the driver/s you wish to purchase --
-
- The cost is $15.00 per driver. Mark with: __X__ for desired BGI driver.
-
- (ATI VGA) (Video 7) (Paradise) (Tecmar) (Tseng Labs)
- 256 color BGI: ATI256.BGI VID256.BGI PAR256.BGI TEC256.BGI ORC256.BGI
- Turbo C: _____ _____ _____ _____ _____
- Turbo Pascal: _____ _____ _____ _____ _____
-
- 16 color BGI: ATI16.BGI VID16.BGI PAR16.BGI TEC16.BGI ORC16.BGI
- Turbo C: _____ _____ _____ _____ _____
- Turbo Pascal: _____ _____ _____ _____ _____
-
- Diskette form: 3 1/2" ____ 5 1/4" ____
-
- I would like a limited version of the BGI driver containing only putpixel,
- getpixel, outtext, and line for the following BGI driver/s: _____________
- _________________________________________________________________________
- _________________________________________________________________________
- (Please indicate if Turbo C or Turbo Pascal version)