;* */
;* */
;* */
-;* (C) 2002 Ullrich von Bassewitz */
-;* Wacholderweg 14 */
-;* D-70597 Stuttgart */
-;* EMail: uz@musoftware.de */
+;* (C) 2002-2009, Ullrich von Bassewitz */
+;* Roemerstrasse 52 */
+;* D-70794 Filderstadt */
+;* EMail: uz@cc65.org */
;* */
;* */
;* This software is provided 'as-is', without any expressed or implied */
;------------------------------------------------------------------------------
-; Offsets into the driver header
-
-TGI_HDR_ID = 0 ; Contains 0x74, 0x67, 0x69 ("tgi")
-TGI_HDR_VERSION = 3 ; Interface version
-TGI_HDR_XRES = 4 ; X resolution
-TGI_HDR_YRES = 6 ; Y resolution
-TGI_HDR_COLORS = 8 ; Number of available colors
-TGI_HDR_ERROR = 9 ; Error code
-TGI_HDR_RES = 10 ; Reserved for extensions
-
-TGI_HDR_JUMPTAB = 16
-TGI_HDR_INSTALL = TGI_HDR_JUMPTAB+0 ; INSTALL routine
-TGI_HDR_DEINSTALL = TGI_HDR_JUMPTAB+2 ; DEINSTALL routine
-TGI_HDR_INIT = TGI_HDR_JUMPTAB+4 ; INIT routine
-TGI_HDR_POST = TGI_HDR_JUMPTAB+6 ; POST routine
-TGI_HDR_CONTROL = TGI_HDR_JUMPTAB+8 ; CONTROL routine
-TGI_HDR_CLEAR = TGI_HDR_JUMPTAB+10 ; CLEAR routine
-TGI_HDR_SETCOLOR = TGI_HDR_JUMPTAB+12 ; SETCOLOR routine
-TGI_HDR_SETPIXEL = TGI_HDR_JUMPTAB+14 ; SETPIXEL routine
-TGI_HDR_GETPIXEL = TGI_HDR_JUMPTAB+16 ; GETPIXEL routine
-TGI_HDR_LINE = TGI_HDR_JUMPTAB+18 ; LINE routine
-TGI_HDR_BAR = TGI_HDR_JUMPTAB+20 ; BAR routine
-TGI_HDR_CIRCLE = TGI_HDR_JUMPTAB+22 ; CIRCLE routine
-
-TGI_HDR_JUMPCOUNT = 12 ; Number of jump vectors
+; The driver header
+
+.struct TGI_HDR
+ ID .byte 3 ; Contains 0x74, 0x67, 0x69 ("tgi")
+ VERSION .byte 1 ; Interface version
+ VARS .struct
+ XRES .word 1 ; X resolution
+ YRES .word 1 ; Y resolution
+ COLORCOUNT .byte 1 ; Number of available colors
+ PAGECOUNT .byte 1 ; Number of screens available
+ FONTWIDTH .byte 1 ; System font width
+ FONTHEIGHT .byte 1 ; System font height
+ ASPECTRATIO .word 1 ; Fixed point 8.8 format
+ .endstruct
+ JUMPTAB .struct
+ INSTALL .addr ; INSTALL routine
+ UNINSTALL .addr ; UNINSTALL routine
+ INIT .addr ; INIT routine
+ DONE .addr ; DONE routine
+ GETERROR .addr ; GETERROR routine
+ CONTROL .addr ; CONTROL routine
+ CLEAR .addr ; CLEAR routine
+ SETVIEWPAGE .addr ; SETVIEWPAGE routine
+ SETDRAWPAGE .addr ; SETDRAWPAGE routine
+ SETCOLOR .addr ; SETCOLOR routine
+ SETPALETTE .addr ; SETPALETTE routine
+ GETPALETTE .addr ; GETPALETTE routine
+ GETDEFPALETTE .addr ; GETDEFPALETTE routine
+ SETPIXEL .addr ; SETPIXEL routine
+ GETPIXEL .addr ; GETPIXEL routine
+ LINE .addr ; LINE routine
+ BAR .addr ; BAR routine
+ TEXTSTYLE .addr ; TEXTSTYLE routine
+ OUTTEXT .addr ; OUTTEXT routine
+ IRQ .addr ; IRQ routine
+ .endstruct
+.endstruct
+
+;------------------------------------------------------------------------------
+; The TGI API version, stored at TGI_HDR_VERSION
+
+TGI_API_VERSION = $03
;------------------------------------------------------------------------------
-; Variables
+; Color and text constants
+
+TGI_COLOR_BLACK = 0
+TGI_COLOR_WHITE = 1
+
+TGI_FONT_BITMAP = 0
+TGI_FONT_VECTOR = 1
+
+TGI_TEXT_HORIZONTAL = 0
+TGI_TEXT_VERTICAL = 1
+
+;------------------------------------------------------------------------------
+; C accessible Variables
.global _tgi_drv ; Pointer to driver
.global _tgi_error ; Last error code
+ .global _tgi_gmode ; Flag: graphics mode active
+ .global _tgi_curx ; Current drawing cursor X
+ .global _tgi_cury ; Current drawing cursor Y
+ .global _tgi_color ; Current drawing color
+ .global _tgi_font ; Which font to use
+ .global _tgi_textdir ; Current text direction
+ .global _tgi_vectorfont ; Pointer to vector font
+ .global _tgi_textscalew ; Text magnification for the width
+ .global _tgi_textscaleh ; Text magnification for the height
+ .global _tgi_charwidth ; Width of scaled system font char
+ .global _tgi_charheight ; Height of scaled system font char
+ .global _tgi_xres ; X resolution of the current mode
+ .global _tgi_yres ; Y resolution of the current mode
+ .global _tgi_xmax ; Maximum X coordinate
+ .global _tgi_ymax ; Maximum Y coordinate
+ .global _tgi_colorcount ; Number of available colors
+ .global _tgi_pagecount ; Number of available screen pages
+ .global _tgi_fontwidth ; System font width
+ .global _tgi_fontheight ; System font height
+ .global _tgi_aspectratio ; Aspect ratio, fixed point 8.8
+
+;------------------------------------------------------------------------------
+; ASM accessible Variables
+
+ .global tgi_clip_x1 ; Coordinate for line clipper
+ .global tgi_clip_y1 ; Coordinate for line clipper
+ .global tgi_clip_x2 ; Coordinate for line clipper
+ .global tgi_clip_y2 ; Coordinate for line clipper
;------------------------------------------------------------------------------
; Driver entry points
.global tgi_install
- .global tgi_deinstall
+ .global tgi_uninstall
.global tgi_init
- .global tgi_post
+ .global tgi_done
+ .global tgi_geterror
.global tgi_control
.global tgi_clear
+ .global tgi_setviewpage
+ .global tgi_setdrawpage
.global tgi_setcolor
+ .global tgi_setpalette
+ .global tgi_getpalette
+ .global tgi_getdefpalette
.global tgi_setpixel
.global tgi_getpixel
.global tgi_line
.global tgi_bar
- .global tgi_circle
-
+ .global tgi_textstyle
+ .global tgi_outtext
;------------------------------------------------------------------------------
; ASM functions
- .global tgi_fetch_error
+ .global tgi_clippedline
+ .global tgi_curtoxy
+ .global tgi_getset
+ .global tgi_inv_arg
+ .global tgi_inv_drv
+ .global tgi_linepop
+ .global tgi_popxy
+ .global tgi_popxy2
.global tgi_set_ptr
- .global tgi_setup
+;------------------------------------------------------------------------------
+; C callable functions
+
+ .global _tgi_arc
+ .global _tgi_bar
+ .global _tgi_circle
+ .global _tgi_clear
+ .global _tgi_done
+ .global _tgi_ellipse
+ .global _tgi_getcolor
+ .global _tgi_getcolorcount
+ .global _tgi_getdefpalette
+ .global _tgi_geterror
+ .global _tgi_geterrormsg
+ .global _tgi_getmaxcolor
+ .global _tgi_getmaxx
+ .global _tgi_getmaxy
+ .global _tgi_getpagecount
+ .global _tgi_getpalette
+ .global _tgi_getpixel
+ .global _tgi_getxres
+ .global _tgi_getyres
+ .global _tgi_gotoxy
+ .global _tgi_imulround
+ .global _tgi_init
+ .global _tgi_install
+ .global _tgi_install_vectorfont
+ .global _tgi_ioctl
+ .global _tgi_line
+ .global _tgi_lineto
+ .global _tgi_load
+ .global _tgi_load_driver
+ .global _tgi_outtext
+ .global _tgi_outtextxy
+ .global _tgi_pieslice
+ .global _tgi_setcolor
+ .global _tgi_setdrawpage
+ .global _tgi_setpalette
+ .global _tgi_setpixel
+ .global _tgi_setviewpage
+ .global _tgi_textheight
+ .global _tgi_textscale
+ .global _tgi_textstyle
+ .global _tgi_textwidth
+ .global _tgi_uninstall
+ .global _tgi_unload
projects / cc65 / blobdiff