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235 lines
10 KiB
PHP
235 lines
10 KiB
PHP
;*****************************************************************************/
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;* */
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;* tgi-kernel.inc */
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;* */
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;* TGI kernel interface */
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;* */
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;* */
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;* */
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;* (C) 2002-2012, Ullrich von Bassewitz */
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;* Roemerstrasse 52 */
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;* D-70794 Filderstadt */
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;* EMail: uz@cc65.org */
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;* */
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;* */
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;* This software is provided 'as-is', without any expressed or implied */
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;* warranty. In no event will the authors be held liable for any damages */
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;* arising from the use of this software. */
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;* */
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;* Permission is granted to anyone to use this software for any purpose, */
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;* including commercial applications, and to alter it and redistribute it */
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;* freely, subject to the following restrictions: */
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;* */
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;* 1. The origin of this software must not be misrepresented; you must not */
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;* claim that you wrote the original software. If you use this software */
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;* in a product, an acknowledgment in the product documentation would be */
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;* appreciated but is not required. */
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;* 2. Altered source versions must be plainly marked as such, and must not */
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;* be misrepresented as being the original software. */
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;* 3. This notice may not be removed or altered from any source */
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;* distribution. */
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;* */
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;*****************************************************************************/
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;------------------------------------------------------------------------------
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; The driver header
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.struct TGI_HDR
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ID .byte 3 ; Contains 0x74, 0x67, 0x69 ("tgi")
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VERSION .byte 1 ; Interface version
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LIBREF .addr ; Library reference
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VARS .struct
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XRES .word 1 ; X resolution
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YRES .word 1 ; Y resolution
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COLORCOUNT .byte 1 ; Number of available colors
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PAGECOUNT .byte 1 ; Number of screens available
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FONTWIDTH .byte 1 ; System font width in pixel
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FONTHEIGHT .byte 1 ; System font height in pixel
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ASPECTRATIO .word 1 ; Fixed point 8.8 format
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FLAGS .byte 1 ; TGI driver flags
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.endstruct
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JUMPTAB .struct
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INSTALL .addr ; INSTALL routine
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UNINSTALL .addr ; UNINSTALL routine
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INIT .addr ; INIT routine
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DONE .addr ; DONE routine
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GETERROR .addr ; GETERROR routine
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CONTROL .addr ; CONTROL routine
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CLEAR .addr ; CLEAR routine
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SETVIEWPAGE .addr ; SETVIEWPAGE routine
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SETDRAWPAGE .addr ; SETDRAWPAGE routine
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SETCOLOR .addr ; SETCOLOR routine
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SETPALETTE .addr ; SETPALETTE routine
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GETPALETTE .addr ; GETPALETTE routine
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GETDEFPALETTE .addr ; GETDEFPALETTE routine
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SETPIXEL .addr ; SETPIXEL routine
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GETPIXEL .addr ; GETPIXEL routine
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LINE .addr ; LINE routine
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BAR .addr ; BAR routine
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TEXTSTYLE .addr ; TEXTSTYLE routine
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OUTTEXT .addr ; OUTTEXT routine
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IRQ .addr ; IRQ routine
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.endstruct
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.endstruct
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;------------------------------------------------------------------------------
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; The TGI API version, stored at TGI_HDR_VERSION
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TGI_API_VERSION = $05
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;------------------------------------------------------------------------------
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; Bitmapped tgi driver flags, stored in TGI_HDR::VARS::FLAGS.
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; Beware: Some of the bits are tested using the BIT instruction, so do not
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; change the values without checking the code!
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TGI_BM_FONT_FINESCALE = $80 ; Bitmap fonts are fine grained scalable
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;------------------------------------------------------------------------------
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; Text constants
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TGI_FONT_BITMAP = 0
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TGI_FONT_VECTOR = 1
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TGI_TEXT_HORIZONTAL = 0
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TGI_TEXT_VERTICAL = 1
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;----------------------------------------------------------------------------
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; Results of tgi_outcode
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TGI_CLIP_NONE = $00
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TGI_CLIP_LEFT = $01
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TGI_CLIP_RIGHT = $02
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TGI_CLIP_BOTTOM = $04
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TGI_CLIP_TOP = $08
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;------------------------------------------------------------------------------
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; ASM accessible color constants
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.global tgi_color_black:zp ; Target-specific value for black
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.global tgi_color_white:zp ; Target-specific value for white
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;------------------------------------------------------------------------------
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; C accessible variables
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.global _tgi_drv ; Pointer to driver
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.global _tgi_error ; Last error code
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.global _tgi_gmode ; Flag: graphics mode active
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.global _tgi_curx ; Current drawing cursor X
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.global _tgi_cury ; Current drawing cursor Y
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.global _tgi_color ; Current drawing color
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.global _tgi_font ; Which font to use
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.global _tgi_textdir ; Current text direction
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.global _tgi_vectorfont ; Pointer to vector font
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.global _tgi_textscalew ; Text magnification for the width
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.global _tgi_textscaleh ; Text magnification for the height
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.global _tgi_charwidth ; Width of scaled system font char
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.global _tgi_charheight ; Height of scaled system font char
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.global _tgi_xres ; X resolution of the current mode
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.global _tgi_yres ; Y resolution of the current mode
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.global _tgi_xmax ; Maximum X coordinate
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.global _tgi_ymax ; Maximum Y coordinate
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.global _tgi_colorcount ; Number of available colors
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.global _tgi_pagecount ; Number of available screen pages
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.global _tgi_fontwidth ; System font width
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.global _tgi_fontheight ; System font height
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.global _tgi_aspectratio ; Aspect ratio, fixed point 8.8
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.global _tgi_flags ; TGI driver flags
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;------------------------------------------------------------------------------
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; ASM accessible variables
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.global tgi_clip_x1 ; Coordinate for line clipper
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.global tgi_clip_y1 ; Coordinate for line clipper
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.global tgi_clip_x2 ; Coordinate for line clipper
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.global tgi_clip_y2 ; Coordinate for line clipper
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;------------------------------------------------------------------------------
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; Driver entry points
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.global tgi_install
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.global tgi_uninstall
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.global tgi_init
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.global tgi_done
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.global tgi_geterror
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.global tgi_control
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.global tgi_clear
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.global tgi_setviewpage
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.global tgi_setdrawpage
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.global tgi_setcolor
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.global tgi_setpalette
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.global tgi_getpalette
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.global tgi_getdefpalette
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.global tgi_setpixel
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.global tgi_getpixel
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.global tgi_line
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.global tgi_bar
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.global tgi_textstyle
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.global tgi_outtext
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;------------------------------------------------------------------------------
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; ASM functions
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.global tgi_clear_ptr
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.global tgi_clippedline
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.global tgi_curtoxy
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.global tgi_getset
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.global tgi_imulround
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.global tgi_inv_arg
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.global tgi_inv_drv
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.global tgi_linepop
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.global tgi_outcode
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.global tgi_popxy
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.global tgi_popxy2
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.global tgi_set_ptr
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;------------------------------------------------------------------------------
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; C callable functions
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.global _tgi_arc
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.global _tgi_bar
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.global _tgi_circle
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.global _tgi_clear
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.global _tgi_done
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.global _tgi_ellipse
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.global _tgi_getaspectratio
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.global _tgi_getcolor
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.global _tgi_getcolorcount
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.global _tgi_getdefpalette
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.global _tgi_geterror
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.global _tgi_geterrormsg
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.global _tgi_getmaxcolor
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.global _tgi_getmaxx
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.global _tgi_getmaxy
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.global _tgi_getpagecount
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.global _tgi_getpalette
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.global _tgi_getpixel
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.global _tgi_gettextheight
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.global _tgi_gettextwidth
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.global _tgi_getxres
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.global _tgi_getyres
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.global _tgi_gotoxy
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.global _tgi_imulround
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.global _tgi_init
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.global _tgi_install
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.global _tgi_install_vectorfont
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.global _tgi_ioctl
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.global _tgi_line
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.global _tgi_lineto
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.global _tgi_load_driver
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.global _tgi_outtext
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.global _tgi_outtextxy
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.global _tgi_pieslice
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.global _tgi_setaspectratio
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.global _tgi_setcolor
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.global _tgi_setdrawpage
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.global _tgi_setpalette
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.global _tgi_setpixel
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.global _tgi_settextdir
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.global _tgi_settextscale
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.global _tgi_settextstyle
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.global _tgi_setviewpage
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.global _tgi_uninstall
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.global _tgi_unload
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