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/*[
Name: gfx_upd.h
Derived From: Unknown
Author: Unknown
Created On: Unknown
Sccs ID: @(#)gfx_upd.h 1.27 07/09/93
Purpose: Unknown
(c)Copyright Insignia Solutions Ltd., 1990. All rights reserved.
]*/
/*
* PC palette structure.
*/
typedef struct
{
half_word red; /* max = 0xff */
half_word green; /* max = 0xff */
half_word blue; /* max = 0xff */
} PC_palette;
typedef boolean (*T_mark_byte) IPT1(int, off_in);
typedef boolean (*T_mark_word) IPT1(int, addr);
typedef boolean (*T_mark_fill) IPT2(int, laddr, int, haddr);
typedef boolean (*T_mark_wfill) IPT3(int, laddr, int, haddr, int, col);
typedef boolean (*T_mark_string) IPT2(int, laddr, int, haddr);
typedef void (*T_calc_update) IPT0();
typedef boolean (*T_scroll_up) IPT6(int, start, int, width, int, height, int, attr, int, nlines,int,dummy);
typedef boolean (*T_scroll_down) IPT6(int, start, int, width, int, height, int, attr, int, nlines,int,dummy);
typedef struct
{
T_mark_byte mark_byte; /* handle byte written to regenmemory */
T_mark_word mark_word;
T_mark_fill mark_fill;
T_mark_wfill mark_wfill;
T_mark_string mark_string;
T_calc_update calc_update;
T_scroll_up scroll_up;
T_scroll_down scroll_down;
} UPDATE_ALG;
/* BCN 864 */
/* moved from gfx_update.c so other people can use it */
typedef struct {
int line_no;
int start;
int end;
long video_copy_offset;
#ifdef VGG
int v7frig; /* for those annoying V7 (and undocumented VGA) modes */
/* with chars_per_line not a multiple of 4 */
#endif /* VGG */
} DIRTY_PARTS;
typedef enum {
EGA_HI_SP,
EGA_HI_SP_WR,
EGA_MED_SP,
EGA_MED_SP_WR,
EGA_LO_SP,
EGA_LO_SP_WR,
EGA_HI,
EGA_HI_WR,
EGA_MED,
EGA_MED_WR,
EGA_LO,
EGA_LO_WR,
EGA_HI_FUN,
EGA_MED_FUN,
EGA_LO_FUN,
EGA_TEXT_40,
EGA_TEXT_40_WR,
EGA_TEXT_40_SP,
EGA_TEXT_40_SP_WR,
CGA_TEXT_40,
CGA_TEXT_40_WR,
CGA_TEXT_40_SP,
CGA_TEXT_40_SP_WR,
TEXT_40_FUN,
EGA_TEXT_80,
EGA_TEXT_80_WR,
EGA_TEXT_80_SP,
EGA_TEXT_80_SP_WR,
CGA_TEXT_80,
CGA_TEXT_80_WR,
CGA_TEXT_80_SP,
CGA_TEXT_80_SP_WR,
TEXT_80_FUN,
CGA_HI,
CGA_HI_FUN,
CGA_MED,
CGA_MED_FUN,
DUMMY_FUN
} DISPLAY_MODE;
typedef struct
{
void (*init_screen) IPT0();
void (*init_adaptor) IPT2(int,arg1, int,arg2);
void (*change_mode) IPT0();
void (*set_screen_scale) IPT1(int,arg1);
void (*set_palette) IPT2(PC_palette *,arg1, int,arg2);
void (*set_border) IPT1(int,arg1);
void (*clr_screen) IPT0();
void (*flush_screen) IPT0();
void (*mark_refresh) IPT0();
void (*graphics_tick) IPT0();
void (*start_update) IPT0();
void (*end_update) IPT0();
boolean (*scroll_up) IPT6(int, start, int, width, int, height,
int, attr, int, nlines,int,dummy);
boolean (*scroll_down) IPT6(int,arg1,int,arg2,int,arg3,int,arg4,int,
arg5,int,arg6);
void (*paint_cursor) IPT3(int,arg1, int,arg2, half_word,arg3);
#ifdef GISP_SVGA
void (*hide_cursor) IPT3(int,arg1, int,arg2, half_word,arg3);
#endif /* GISP_SVGA */
#ifdef EGG
void (*set_paint) IPT2(DISPLAY_MODE,arg1, int,arg2);
void (*change_plane_mask) IPT1(int,arg1);
void (*update_fonts) IPT0();
void (*select_fonts) IPT2(int,arg1, int,arg2);
void (*free_font) IPT1(int,arg1);
#endif
void (*mode_select_changed) IPT1(int,arg1);
void (*color_select_changed) IPT1(int,arg1);
void (*screen_address_changed) IPT2(int,arg1, int,arg2);
void (*cursor_size_changed) IPT2(int,arg1, int,arg2);
void (*scroll_complete) IPT0();
} VIDEOFUNCS;
extern VIDEOFUNCS *working_video_funcs;
#define host_init_screen()\
(working_video_funcs->init_screen)()
#define host_init_adaptor(ad,ht)\
(working_video_funcs->init_adaptor)(ad,ht)
#define host_change_mode()\
(working_video_funcs->change_mode)()
#define host_set_screen_scale(sz)\
(working_video_funcs->set_screen_scale)(sz)
#define host_set_palette(pltt,sz)\
(working_video_funcs->set_palette)(pltt,sz)
#define host_set_border_colour(col)\
(working_video_funcs->set_border)(col)
#define host_clear_screen()\
(working_video_funcs->clr_screen)()
#define host_flush_screen()\
(working_video_funcs->flush_screen)()
#define host_mark_screen_refresh()\
(working_video_funcs->mark_refresh)()
#define host_graphics_tick()\
(working_video_funcs->graphics_tick)()
#define host_start_update()\
(working_video_funcs->start_update)()
#define host_end_update()\
(working_video_funcs->end_update)()
#define host_scroll_up(l,t,r,b,a,c)\
(working_video_funcs->scroll_up)(l,t,r,b,a,c)
#define host_scroll_down(l,t,r,b,a,c)\
(working_video_funcs->scroll_down)(l,t,r,b,a,c)
#define host_paint_cursor(x,y,attr)\
(working_video_funcs->paint_cursor)(x,y,attr)
#ifdef GISP_SVGA
#define host_hide_cursor(x,y,attr)\
(working_video_funcs->hide_cursor)(x,y,attr)
#endif /* GISP_SVGA */
#ifdef EGG
#define host_set_paint_routine(mode,ht)\
(working_video_funcs->set_paint)(mode,ht)
#define host_change_plane_mask(mode)\
(working_video_funcs->change_plane_mask)(mode)
#define host_update_fonts()\
(working_video_funcs->update_fonts)()
#define host_select_fonts(f1,f2)\
(working_video_funcs->select_fonts)(f1,f2)
#define host_free_font(ind)\
(working_video_funcs->free_font)(ind)
#endif /* EGG */
/* Overrideable in host defs if not desired */
#ifndef host_mode_select_changed
#define host_mode_select_changed(m)\
(working_video_funcs->mode_select_changed)(m)
#endif
/* Overrideable in host defs if not desired */
#ifndef host_color_select_changed
#define host_color_select_changed(c)\
(working_video_funcs->color_select_changed)(c)
#endif
/* Overrideable in host defs if not desired */
#ifndef host_screen_address_changed
#define host_screen_address_changed(start,end)\
(working_video_funcs->screen_address_changed)(start,end)
#endif
/* Overrideable in host defs if not desired */
#ifndef host_cursor_size_changed
#define host_cursor_size_changed(hi, lo)\
(working_video_funcs->cursor_size_changed)(hi, lo)
#endif
/* Overrideable in host defs if not desired */
#ifndef host_scroll_complete
#define host_scroll_complete()\
(working_video_funcs->scroll_complete)()
#endif
/*
* Undefine these GWI defines if the host isn't using the GWI interface
*/
#include "host_gwi.h"
extern void (*paint_screen)(); /* ptr to host routine to paint screen */
#ifdef V7VGA
extern void (*paint_v7ptr)(); /* ptr to host routine to paint V7 h/w pointer */
extern void (*clear_v7ptr)(); /* ptr to host routine to clear V7 h/w pointer */
#endif /* V7VGA */
extern UPDATE_ALG update_alg;
extern byte *video_copy;
extern MEM_HANDLERS vid_handlers;
extern boolean text_scroll_up IPT6(int, start, int, width, int, height,
int, attr, int, nlines,int,dummy);
extern boolean text_scroll_down IPT6(int, start, int, width, int, height,
int, attr, int, nlines,int,dummy);
extern boolean cga_text_scroll_up IPT6(int, start, int, width, int, height,
int, attr, int, nlines,int,dummy);
extern boolean cga_text_scroll_down IPT6(int, start, int, width,
int, height, int, attr, int, nlines,int,dummy);
extern boolean cga_graph_scroll_up IPT6(int, start, int, width, int, height,
int, attr, int, nlines, int, colour);
extern boolean cga_graph_scroll_down IPT6(int, start, int, width,
int, height, int, attr, int, nlines, int, colour);
extern void dummy_calc IPT0();
extern void text_update IPT0();
extern void cga_med_graph_update IPT0();
extern void cga_hi_graph_update IPT0();
extern void ega_text_update IPT0();
extern void ega_wrap_text_update IPT0();
extern void ega_split_text_update IPT0();
extern void ega_wrap_split_text_update IPT0();
extern void ega_graph_update IPT0();
extern void ega_wrap_graph_update IPT0();
extern void ega_split_graph_update IPT0();
extern void ega_wrap_split_graph_update IPT0();
extern void vga_graph_update IPT0();
extern void vga_split_graph_update IPT0();
#if defined(HERC)
extern void herc_update_screen IPT0();
#endif
extern boolean dummy_scroll IPT6(int,dummy1,int,dummy2,int,dummy3,
int,dummy4,int,dummy5,int,dummy6);
extern void bios_has_moved_cursor IPT2(int,arg1, int,arg2);
extern void base_cursor_shape_changed IPT0();
extern void host_cga_cursor_has_moved IPT2(int,arg1, int,arg2);
extern void screen_refresh_required IPT0();
extern void host_ega_cursor_has_moved IPT2(int,arg1, int,arg2);
extern void flag_mode_change_required IPT0();
extern void reset_graphics_routines IPT0();
extern void reset_paint_routines IPT0();
#ifdef NTVDM
IMPORT void stream_io_update(void);
#endif
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