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- ; =======================================================================
- ; FILE: DebVect.ASM
- ;
- ; COPYRIGHT (c) 1988, 1989 BY BORLAND INTERNATIONAL, Inc.
- ;
- ; PURPOSE: Device Driver Overlay (DDO) for the DEBUG.BGI driver
- ; This file defines the vector table at the beginning of the
- ; driver. The segment definitions allow this module to be
- ; linked with a Turbo C module.
- ;
- ; Current Date: 09/15/88
- ;
- ; Updates: None.
- ;
- ; =======================================================================
-
- INCLUDE DEVICE.INC ; File defines vector table format
-
- _TEXT SEGMENT PARA PUBLIC 'CODE'
- _TEXT ENDS
-
- _DATA segment word public 'DATA'
- _DATA ENDS
-
- _BSS segment word public 'BSS'
- _BSS ENDS
-
- _TEXT SEGMENT PARA PUBLIC 'CODE'
-
- DGROUP group _DATA, _TEXT, _BSS
- ASSUME DS:DGROUP, CS:DGROUP
-
- ; The following table defines all of the available vectors as
- ; residing in the Turbo C module.
-
- EXTRN _install : NEAR, _init : NEAR
- EXTRN _clear : NEAR, _post : NEAR
- EXTRN _move : NEAR, _draw : NEAR
- EXTRN _vect : NEAR, _bar : NEAR
- EXTRN _patbar : NEAR, _arc : NEAR
- EXTRN _pieslice : NEAR, _filled_ellipse : NEAR
- EXTRN _palette : NEAR, _allpalette : NEAR
- EXTRN _color : NEAR, _fillstyle : NEAR
- EXTRN _linestyle : NEAR, _textstyle : NEAR
- EXTRN _text : NEAR, _textsiz : NEAR
- EXTRN _floodfill : NEAR, _getpixel : NEAR
- EXTRN _setpixel : NEAR, _bitmaputil : NEAR
- EXTRN _savebitmap : NEAR, _restorebitmap : NEAR
- EXTRN _setclip : NEAR, _color_query : NEAR
-
-
- BGI DEBUG ; Defining a Debugging Driver
-
- DDOVEC DW _install ; Driver initialization and installation
- ; Input: AX=Command # CX = Parameter
- ; Output: Varies according to command
-
- DW _init ; Initialize device for output
- ; Input: ES:BX points to information table
- ; Output: None
-
- DW _clear ; Clear graphics device and ready it for new
- ; output. (Clear Screen, Load Paper, ... )
- ; Input: None
- ; Output: None
-
- DW _post ; Post - Make picture visible. Enable screen,
- ; print paper, eject current sheet, ...
- ; Input: None
- ; Output: None
-
- DW _move ; Set Current Drawing Pointer to value.
- ; Input: AX = X coord, BX = Y Coord
- ; Output: None
-
- DW _draw ; Draw a line from the Current Pointer to
- ; the given coordinate.
- ; Input: AX = X coord, BX = Y Coord
- ; Output: None
-
- DW _vect ; Draw a line between the given coordinate
- ; pairs.
- ; Input: AX = X Start, BX = Y Start
- ; CX = X End, DX = Y End
- ; Output: None
-
- DW EMULATE ; Emulated polygon
-
- DW _bar ; Draw a filled rectangle with the CP as the
- ; Lower Left corner, and the given coordinate
- ; as the upper right.
- ; Input: AX = X Corner BX = Y Corner
- ; CX = Depth for #D bars
- ; DX = Draw Top Flag (DX<>0 Draw Top)
- ; Output: None
-
- DW _patbar ; Draw a patterned rectangle with the given
- ; coorinate pair. The pattern is provided by
- ; the set fill pattern entry.
- ; Input: AX = X Corner BX = Y Corner
- ; CX = X Corner DX = Y Corner
- ; Output: None
-
- DW _arc ; Draw an elliptical arc from the given start
- ; angle to the given end angle, using the CP
- ; as the Center Point, and the given X and Y
- ; Radii. Angles are 0-360 degrees.
- ; Input: AX = Start Angle BX = End Angle
- ; CX = X radius of arc
- ; DX = Y radius of arc
- ; Output: None
-
- DW _pieslice ; Draw an elliptical sector from the given start
- ; angle to the given end angle, using the CP
- ; as the Center Point, and the given X and Y
- ; Radii. Angles are 0-360 degrees.
- ; Input: AX = Start Angle BX = End Angle
- ; CX = X radius of arc
- ; DX = Y radius of arc
- ; Output: None
-
- DW _filled_ellipse ; Draw an ellipse using the CP as the Center
- ; Point, and the given X and Y radii.
- ; Input: AX = X Radius of ellipse
- ; BX = Y Radius of ellipse
- ; Output: None
-
- DW _palette ; Set a palette entry to a given color.
- ; Input: AX = Index and Command Code
- ; BX, CX, DX as needed
- ; Output: None
-
- DW _allpalette ; Load the palette with a table of colors.
- ; Input: ES:BX = Palette Table to load
- ; Output: None
-
- DW _color ; Set the palette indexs for the current
- ; drawing color and the current fill color.
- ; Input: AL = Drawing Color
- ; AH = Fill color
- ; Output: None
-
- DW _fillstyle ; Set current fill pattern. The fill pattern is
- ; set to the pattern specified. If the pattern
- ; number is -1 then the pattern is define in
- ; a user supplied array.
- ; Input: AL = Pattern # (-1 for user def)
- ; ES:BX = User pattern data if needed
- ; Output: None
-
- DW _linestyle ; Set current line style. The line style is
- ; set to the style specified. If the style
- ; number is -1 then the style is define in
- ; a user supplied pattern.
- ; Input: AL = Style # (-1 for user def)
- ; BX = User Line Pattern
- ; CX = Line Width (1 or 3)
- ; Output: None
-
- DW _textstyle ; Set the text attributes for font rendering
- ; Input: AL = Font Number
- ; AH = Font Path and Direction
- ; BX = Desired X Character Size
- ; CX = Desired Y Character Size
- ; Output: BX = Actual X Character Size
- ; CX = Actual Y Character Size
-
- DW _text ; Draw a string in the current font with the
- ; justification point at the CP.
- ; Input: ES:BX = Pointer to string
- ; CX = String Length
-
- DW _textsiz ; Calculate the dimensions (in pixels) of an
- ; input text string.
- ; Input: ES:BX = Pointer to string
- ; CX = String Length
- ; Output: BX = Width of string
- ; CX = Height of string
-
- DW RESERVED ; RESERVED
-
- DW _floodfill ; Do a floodfill in the current color using
- ; the given (X,Y) address as the seed.
- ; Input: AX = X Coord BX = Y Coord
- ; Output: None.
-
- DW _getpixel ; Read a pixel from the given coord.
- ; Input: AX = X Coord BX = Y Coord
- ; Output: DL = Pixel value read
-
- DW _setpixel ; Write a pixel to the given coord.
- ; Input: AX = X Coord BX = Y Coord
- ; DL = Pixel value read
- ; Output: None.
-
-
- DW _bitmaputil ; Return a pointer to a table of misc driver
- ; utilities. The following describes the table.
- ; Input: None.
- ; Output: ES:BS = Base of table
- ;
- ; DW GOTOGRAPHIC
- ; DW EXITGRAPHIC
- ; DW PUTPIX
- ; DW GETPIX
- ; DW (BITS PER PIXEL)
- ; DW SETPAGE
- ; DW SETVISUAL
- ; DW SETWRITEMODE
-
- DW _savebitmap ; Save a portion of the screen to CPU memory.
- ; Input: ES:BX = Pointer to CPU buffer
- ; SI = Start X coord of save block
- ; DI = Start Y coord of save block
- ; CX = End X coord of save block
- ; DX = End Y coord of save block
- ; Output: (In Save Block)
-
- DW _restorebitmap ; Restore a portion of the screen from CPU memory.
- ; Input: ES:BX = Pointer to CPU buffer
- ; SI = Start X coord of save block
- ; DI = Start Y coord of save block
- ; CX = End X coord of save block
- ; DX = End Y coord of save block
- ; AL = Write mode for block writing
- ; Output: None.
-
- DW _setclip ; Set the clipping window to the rectangle
- ; defined by the two (X,Y) pairs
- ; Input: AX = Upper Left X coord
- ; BX = Upper Left Y coord
- ; CX = Lower Right X coord
- ; DX = Lower Right Y coord
- ; Output: None.
-
- DW _color_query ; Return the parameters of the device color
- ; table (Size, Default Palette, etc)
- ; Input: AL = Command for query
- ; Output: As required per command.
-
- DW 35 DUP (NONE) ; Reserved Entry Points
-
- _TEXT ENDS ; Close the code segment
-
- END
