pcvt_vtf.c

freebsd v4.4内核源码

{
	if(svsp->cur_offset < (svsp->scrr_end * svsp->maxcol))
	{
		svsp->cur_offset += (svsp->maxcol-svsp->col);
		svsp->col = 0;
	}
	else
	{
		roll_up(svsp, 1);
		svsp->cur_offset -= svsp->col;
		svsp->col = 0;
	}
}

/*---------------------------------------------------------------------------*
 *	set dec private modes, esc [ ? x h
 *---------------------------------------------------------------------------*/
void
vt_set_dec_priv_qm(struct video_state *svsp)
{
	switch(svsp->parms[0])
	{
		case 0:		/* error, ignored */
		case 1:		/* CKM - cursor key mode */
			svsp->ckm = 1;
			break;

		case 2:		/* ANM - ansi/vt52 mode */
			break;

		case 3:		/* COLM - column mode */
			vt_col(svsp, SCR_COL132);
			break;

		case 4:		/* SCLM - scrolling mode */
		case 5:		/* SCNM - screen mode */
			break;

		case 6:		/* OM - origin mode */
			svsp->m_om = 1;
			break;

		case 7:		/* AWM - auto wrap mode */
			svsp->m_awm = 1;
			swritefkl(7,(u_char *)"AUTOWRAPENABLE *",svsp);
			break;

		case 8:		/* ARM - auto repeat mode */
			kbrepflag = 1;
			break;

		case 9:		/* INLM - interlace mode */
		case 10:	/* EDM - edit mode */
		case 11:	/* LTM - line transmit mode */
		case 12:	/* */
		case 13:	/* SCFDM - space compression / field delimiting */
		case 14:	/* TEM - transmit execution mode */
		case 15:	/* */
		case 16:	/* EKEM - edit key execution mode */
			break;

		case 25:	/* TCEM - text cursor enable mode */
			if(vsp == svsp)
				sw_cursor(1);	/* cursor on */
			svsp->cursor_on = 1;
			break;

		case 42:	/* NRCM - 7bit NRC characters */
			break;
	}
}

/*---------------------------------------------------------------------------*
 *	reset dec private modes, esc [ ? x l
 *---------------------------------------------------------------------------*/
void
vt_reset_dec_priv_qm(struct video_state *svsp)
{
	switch(svsp->parms[0])
	{
		case 0:		/* error, ignored */
		case 1:		/* CKM - cursor key mode */
			svsp->ckm = 0;
			break;

		case 2:		/* ANM - ansi/vt52 mode */
			break;

		case 3:		/* COLM - column mode */
			vt_col(svsp, SCR_COL80);
			break;

		case 4:		/* SCLM - scrolling mode */
		case 5:		/* SCNM - screen mode */
			break;

		case 6:		/* OM - origin mode */
			svsp->m_om = 0;
			break;

		case 7:		/* AWM - auto wrap mode */
			svsp->m_awm = 0;
			swritefkl(7,(u_char *)"AUTOWRAPENABLE  ",svsp);
			break;

		case 8:		/* ARM - auto repeat mode */
			kbrepflag = 0;
			break;

		case 9:		/* INLM - interlace mode */
		case 10:	/* EDM - edit mode */
		case 11:	/* LTM - line transmit mode */
		case 12:	/* */
		case 13:	/* SCFDM - space compression / field delimiting */
		case 14:	/* TEM - transmit execution mode */
		case 15:	/* */
		case 16:	/* EKEM - edit key execution mode */
			break;

		case 25:	/* TCEM - text cursor enable mode */
			if(vsp == svsp)
				sw_cursor(0);	/* cursor off */
			svsp->cursor_on = 0;
			break;

		case 42:	/* NRCM - 7bit NRC characters */
			break;
	}
}

/*---------------------------------------------------------------------------*
 *	set ansi modes, esc [ x
 *---------------------------------------------------------------------------*/
void
vt_set_ansi(struct video_state *svsp)
{
	switch(svsp->parms[0])
	{
		case 0:		/* error, ignored */
		case 1:		/* GATM - guarded area transfer mode */
		case 2:		/* KAM - keyboard action mode */
		case 3:		/* CRM - Control Representation mode */
			break;

		case 4:		/* IRM - insert replacement mode */
			svsp->irm = 1; /* Insert mode */
			break;

		case 5:		/* SRTM - status report transfer mode */
		case 6:		/* ERM - erasue mode */
		case 7:		/* VEM - vertical editing mode */
		case 10:	/* HEM - horizontal editing mode */
		case 11:	/* PUM - position unit mode */
		case 12:	/* SRM - send-receive mode */
		case 13:	/* FEAM - format effector action mode */
		case 14:	/* FETM - format effector transfer mode */
		case 15:	/* MATM - multiple area transfer mode */
		case 16:	/* TTM - transfer termination */
		case 17:	/* SATM - selected area transfer mode */
		case 18:	/* TSM - tabulation stop mode */
		case 19:	/* EBM - editing boundary mode */
			break;

		case 20:	/* LNM - line feed / newline mode */
			svsp->lnm = 1;
			break;
	}
}

/*---------------------------------------------------------------------------*
 *	reset ansi modes, esc [ x
 *---------------------------------------------------------------------------*/
void
vt_reset_ansi(struct video_state *svsp)
{
	switch(svsp->parms[0])
	{
		case 0:		/* error, ignored */
		case 1:		/* GATM - guarded area transfer mode */
		case 2:		/* KAM - keyboard action mode */
		case 3:		/* CRM - Control Representation mode */
			break;

		case 4:		/* IRM - insert replacement mode */
			svsp->irm = 0;  /* Replace mode */
			break;

		case 5:		/* SRTM - status report transfer mode */
		case 6:		/* ERM - erasue mode */
		case 7:		/* VEM - vertical editing mode */
		case 10:	/* HEM - horizontal editing mode */
		case 11:	/* PUM - position unit mode */
		case 12:	/* SRM - send-receive mode */
		case 13:	/* FEAM - format effector action mode */
		case 14:	/* FETM - format effector transfer mode */
		case 15:	/* MATM - multiple area transfer mode */
		case 16:	/* TTM - transfer termination */
		case 17:	/* SATM - selected area transfer mode */
		case 18:	/* TSM - tabulation stop mode */
		case 19:	/* EBM - editing boundary mode */
			break;

		case 20:	/* LNM - line feed / newline mode */
			svsp->lnm = 0;
			break;
	}
}

/*---------------------------------------------------------------------------*
 *	clear tab stop(s)
 *---------------------------------------------------------------------------*/
void
vt_clrtab(struct video_state *svsp)
{
	int i;

	if(svsp->parms[0] == 0)
		svsp->tab_stops[svsp->col] = 0;
	else if(svsp->parms[0] == 3)
	{
		for(i=0; i<MAXTAB; i++)
			svsp->tab_stops[i] = 0;
	}
}

/*---------------------------------------------------------------------------*
 *	DECSC - save cursor & attributes
 *---------------------------------------------------------------------------*/
void
vt_sc(struct video_state *svsp)
{
	svsp->sc_flag = 1;
	svsp->sc_row = svsp->row;
	svsp->sc_col = svsp->col;
	svsp->sc_cur_offset = svsp->cur_offset;
	svsp->sc_attr = svsp->c_attr;
	svsp->sc_awm = svsp->m_awm;
	svsp->sc_om = svsp->m_om;
	svsp->sc_G0 = svsp->G0;
	svsp->sc_G1 = svsp->G1;
	svsp->sc_G2 = svsp->G2;
	svsp->sc_G3 = svsp->G3;
	svsp->sc_GL = svsp->GL;
	svsp->sc_GR = svsp->GR;
	svsp->sc_sel = svsp->selchar;
	svsp->sc_vtsgr = svsp->vtsgr;
}

/*---------------------------------------------------------------------------*
 *	DECRC - restore cursor & attributes
 *---------------------------------------------------------------------------*/
void
vt_rc(struct video_state *svsp)
{
	if(svsp->sc_flag == 1)
	{
		svsp->sc_flag = 0;
		svsp->row = svsp->sc_row;
		svsp->col = svsp->sc_col;
		svsp->cur_offset = svsp->sc_cur_offset;
		svsp->c_attr = svsp->sc_attr;
		svsp->m_awm = svsp->sc_awm;
		svsp->m_om = svsp->sc_om;
		svsp->G0 = svsp->sc_G0;
		svsp->G1 = svsp->sc_G1;
		svsp->G2 = svsp->sc_G2;
		svsp->G3 = svsp->sc_G3;
		svsp->GL = svsp->sc_GL;
		svsp->GR = svsp->sc_GR;
		svsp->selchar = svsp->sc_sel;
		svsp->vtsgr = svsp->sc_vtsgr;
	}
}

/*---------------------------------------------------------------------------*
 *	designate a character set as G0, G1, G2 or G3 for 94/96 char sets
 *---------------------------------------------------------------------------*/
void
vt_designate(struct video_state *svsp)
{
	u_short *ctp = NULL;
	u_char ch;

	if(svsp->whichi == 1)
		ch = svsp->which[0];
	else
	{
		int i;

		if(svsp->dld_id[0] == '\0')
			return;

		if(!(((adaptor_type == EGA_ADAPTOR) ||
		     (adaptor_type == VGA_ADAPTOR)) &&
		     (vgacs[svsp->vga_charset].secondloaded)))
		{
			return;
		}

		for(i = (svsp->whichi)-1; i >= 0; i--)
		{
			 if(svsp->which[i] != svsp->dld_id[i])
				return;
		}
#ifdef HAVECSE_DOWNLOADABLE
		ctp = cse_downloadable;
		swcsp(svsp, ctp);
#endif
		return;
	}

	if(((adaptor_type == EGA_ADAPTOR) || (adaptor_type == VGA_ADAPTOR)) &&
	   (vgacs[svsp->vga_charset].secondloaded))
	{
		if((ch == svsp->dld_id[0]) && (svsp->dld_id[1] == '\0'))
		{
#ifdef HAVECSE_DOWNLOADABLE
			ctp = cse_downloadable;
			swcsp(svsp, ctp);
#endif
			return;
		}

		switch(ch)
		{
			case 'A': /* British or ISO-Latin-1 */
				switch(svsp->state)
				{
					case STATE_BROPN: /* designate G0 */
					case STATE_BRCLO: /* designate G1 */
					case STATE_STAR:  /* designate G2 */
					case STATE_PLUS:  /* designate G3 */
#ifdef HAVECSE_BRITISH
						ctp = cse_british;
#endif
						break;

					case STATE_MINUS: /* designate G1 (96)*/
					case STATE_DOT:	  /* designate G2 (96)*/
					case STATE_SLASH: /* designate G3 (96)*/
#ifdef HAVECSE_ISOLATIN
						ctp = cse_isolatin;
#endif
						break;
				}
				break;

			case 'B': /* USASCII */
#ifdef HAVECSE_ASCII
				ctp = cse_ascii;
#endif
				break;

			case 'C': /* Finnish */
			case '5': /* Finnish */
#ifdef HAVECSE_FINNISH
				ctp = cse_finnish;
#endif
				break;

			case 'E': /* Norwegian/Danish */
			case '6': /* Norwegian/Danish */
#ifdef HAVECSE_NORWEGIANDANISH
				ctp = cse_norwegiandanish;
#endif
				break;

			case 'H': /* Swedish */
			case '7': /* Swedish */
#ifdef HAVECSE_SWEDISH
				ctp = cse_swedish;
#endif
				break;

			case 'K': /* German */
#ifdef HAVECSE_GERMAN
				ctp = cse_german;
#endif
				break;

			case 'Q': /* French Canadien */
#ifdef HAVECSE_FRENCHCANADA
				ctp = cse_frenchcanada;
#endif
				break;

			case 'R': /* French */
#ifdef HAVECSE_FRENCH
				ctp = cse_french;
#endif
				break;

			case 'Y': /* Italian */
#ifdef HAVECSE_ITALIAN
				ctp = cse_italian;
#endif
				break;

			case 'Z': /* Spanish */
#ifdef HAVECSE_SPANISH
				ctp = cse_spanish;
#endif
				break;

			case '0': /* special graphics */
#ifdef HAVECSE_SPECIAL
				ctp = cse_special;
#endif
				break;

			case '1': /* alternate ROM */
#ifdef HAVECSE_ALTERNATEROM1
				ctp = cse_alternaterom1;
#endif
				break;

			case '2': /* alt ROM, spec graphics */
#ifdef HAVECSE_ALTERNATEROM2
				ctp = cse_alternaterom2;
#endif
				break;

			case '3': /* HP Roman 8, upper 128 chars*/
#ifdef HAVECSE_ROMAN8
				ctp = cse_roman8;
#endif
				break;

			case '4': /* Dutch */
#ifdef HAVECSE_DUTCH
				ctp = cse_dutch;
#endif
				break;

			case '<': /* DEC Supplemental */
#ifdef HAVECSE_SUPPLEMENTAL
				ctp = cse_supplemental;
#endif
				break;

			case '=': /* Swiss */
#ifdef HAVECSE_SWISS
				ctp = cse_swiss;
#endif
				break;

			case '>': /* DEC Technical */
#ifdef HAVECSE_TECHNICAL
				ctp = cse_technical;
#endif
				break;

			default:
				break;
		}
	}
	else
	{
		switch(ch)
		{
			case 'A': /* British or ISO-Latin-1 */
				switch(svsp->state)
				{
					case STATE_BROPN: /* designate G0 */
					case STATE_BRCLO: /* designate G1 */
					case STATE_STAR:  /* designate G2 */
					case STATE_PLUS:  /* designate G3 */
#ifdef HAVECSD_BRITISH
						ctp = csd_british;
#endif
						break;

					case STATE_MINUS: /* designate G1 (96)*/
					case STATE_DOT:	  /* designate G2 (96)*/
					case STATE_SLASH: /* designate G3 (96)*/
#ifdef HAVECSD_ISOLATIN
						ctp = csd_isolatin;
#endif
						break;
				}
				break;

			case 'B': /* USASCII */
#ifdef HAVECSD_ASCII
				ctp = csd_ascii;
#endif
				break;

			case 'C': /* Finnish */
			case '5': /* Finnish */
#ifdef HAVECSD_FINNISH
				ctp = csd_finnish;
#endif
				break;

			case 'E': /* Norwegian/Danish */
			case '6': /* Norwegian/Danish */
#ifdef HAVECSD_NORWEGIANDANISH
				ctp = csd_norwegiandanish;
#endif
				break;

			case 'H': /* Swedish */
			case '7': /* Swedish */
#ifdef HAVECSD_SWEDISH
				ctp = csd_swedish;
#endif
				break;

			case 'K': /* German */
#ifdef HAVECSD_GERMAN
				ctp = csd_german;
#endif
				break;

			case 'Q': /* French Canadien */
#ifdef HAVECSD_FRENCHCANADA
				ctp = csd_frenchcanada;
#endif
				break;

			case 'R': /* French */
#ifdef HAVECSD_FRENCH
				ctp = csd_french;
#endif
				break;

			case 'Y': /* Italian */
#ifdef HAVECSD_ITALIAN
				ctp = csd_italian;
#endif
				break;

			case 'Z': /* Spanish */
#ifdef HAVECSD_SPANISH
				ctp = csd_spanish;
#endif
				break;

			case '0': /* special graphics */
#ifdef HAVECSD_SPECIAL
				ctp = csd_special;
#endif
				break;

			case '1': /* alternate ROM */
#ifdef HAVECSD_ALTERNATEROM1