1994/0503/pc/devvga.c (diff list | history)

1994/0422/sys/src/9/pc/devvga.c:79,84 – 1994/0503/sys/src/9/pc/devvga.c:79,85 (short | long | prev | next)
1992/1119		{ char *name;
1993/1116		void (*setpage)(int); /* routine to page though display memory */
1994/0503		void (*mvcursor)(Point); /* routine to move hardware cursor */
1992/1119		}; enum
1994/0422/sys/src/9/pc/devvga.c:95,113 – 1994/0503/sys/src/9/pc/devvga.c:96,117
1993/1116		static void nopage(int), tsengpage(int), tridentpage(int), parapage(int);
1994/0311		static void atipage(int), cirruspage(int), s3page(int);
1993/1116
1994/0503		static void nomvcursor(Point);
1993/0106		Vgacard vgachips[] =
1992/1119		{
1993/0106		[Ati] { "ati", atipage, },
1992/1124		[Pvga1a] { "pvga1a", parapage, },
1992/1216		[Trident] { "trident", tridentpage, },
1992/1119		[Tseng] { "tseng", tsengpage, },
1993/0915		[Cirrus] { "cirrus", cirruspage, },
1994/0311		[S3] { "s3", s3page, },
1992/1119		[Generic] { "generic", nopage, },
1994/0503		[Ati] { "ati", atipage, nomvcursor, }, [Pvga1a] { "pvga1a", parapage, nomvcursor, }, [Trident] { "trident", tridentpage, nomvcursor, }, [Tseng] { "tseng", tsengpage, nomvcursor, }, [Cirrus] { "cirrus", cirruspage, nomvcursor, }, [S3] { "s3", s3page, nomvcursor, }, [Generic] { "generic", nopage, nomvcursor, },
1992/1119		{ 0, 0, }, }; Vgacard *vgacard; /* current vga card */
1994/0503		static int hwcursor;
1992/1119
1994/0415		/* * work areas for bitblting screen characters, scrolling, and cursor redraw
1994/0422/sys/src/9/pc/devvga.c:174,180 – 1994/0503/sys/src/9/pc/devvga.c:178,185
1992/1119		Qvgatype= 2, Qvgaport= 3,
1993/1116		Qvgaportw= 4, Nvga= 4,
1994/0503		Qvgactl= 5, Nvga= 5,
1992/1119		};
1992/0527		Dirtab vgadir[]={ "vgasize", {Qvgasize}, 0, 0666,
1994/0422/sys/src/9/pc/devvga.c:181,186 – 1994/0503/sys/src/9/pc/devvga.c:186,192
1992/1119		"vgatype", {Qvgatype}, 0, 0666,
1992/0528		"vgaport", {Qvgaport}, 0, 0666,
1993/1116		"vgaportw", {Qvgaportw}, 0, 0666,
1994/0503		"vgactl", {Qvgactl}, 0, 0666,
1992/0527		}; void
1994/0422/sys/src/9/pc/devvga.c:295,300 – 1994/0503/sys/src/9/pc/devvga.c:301,314
1992/1119		return n; } error(Ebadarg);
1994/0503		case Qvgactl: if(offset != 0 || n >= sizeof(cbuf)) error(Ebadarg); memmove(cbuf, buf, n); cbuf[n] = 0; if(strncmp(cbuf, "hwcursor", 8) == 0) hwcursor = 1; break;
1992/0527		case Qvgasize:
1992/1119		if(offset != 0 || n >= sizeof(cbuf))
1992/0528		error(Ebadarg);
1994/0422/sys/src/9/pc/devvga.c:675,681 – 1994/0503/sys/src/9/pc/devvga.c:689,695
1993/1116		if(!rectclip(&r, gscreen.r) || tl<=0) return;
1994/0412		if(dolock)
1994/0503		if(dolock && hwcursor == 0)
1994/0412		cursorlock(r);
1994/0415		lock(&loadlock);
1994/0412
1994/0422/sys/src/9/pc/devvga.c:758,764 – 1994/0503/sys/src/9/pc/devvga.c:772,778
1993/1116		}
1994/0412
1994/0415		unlock(&loadlock);
1994/0412		if(dolock)
1994/0503		if(dolock && hwcursor == 0)
1994/0412		cursorunlock();
1993/1116		}
1994/0422/sys/src/9/pc/devvga.c:831,837 – 1994/0503/sys/src/9/pc/devvga.c:845,851
1994/0412		if(!rectclip(&r, gscreen.r) || tl<=0)
1993/1116		return;
1994/0412		if(dolock)
1994/0503		if(dolock && hwcursor == 0)
1994/0412		cursorlock(r);
1994/0415		lock(&loadlock);
1993/1116
1994/0422/sys/src/9/pc/devvga.c:914,920 – 1994/0503/sys/src/9/pc/devvga.c:928,934
1994/0412		}
1994/0415		unlock(&loadlock);
1994/0412		if(dolock)
1994/0503		if(dolock && hwcursor == 0)
1994/0412		cursorunlock();
1993/1116		}
1994/0422/sys/src/9/pc/devvga.c:1064,1069 – 1994/0503/sys/src/9/pc/devvga.c:1078,1092
1992/1119		}
1994/0415		/*
1994/0503		* hardware cursor routines */ static void nomvcursor(Point p) { USED(p.x); } /*
1994/0415		* character mode console */
1992/1119		static void
1994/0422/sys/src/9/pc/devvga.c:1321,1327 – 1994/0503/sys/src/9/pc/devvga.c:1344,1352
1994/0414		if(dolock) lock(&cursor); if(cursor.visible++ == 0){
1994/0503		if(hwcursor) (*vgacard->mvcursor)(mousexy()); else if(cursor.visible++ == 0){
1994/0414		cursor.r.min = mousexy(); cursor.r.max = add(cursor.r.min, Pt(16, 16)); cursor.r = raddp(cursor.r, cursor.offset);
1994/0422/sys/src/9/pc/devvga.c:1374,1379 – 1994/0503/sys/src/9/pc/devvga.c:1399,1406
1994/0414		void cursoroff(int dolock) {
1994/0503		if(hwcursor) return;
1994/0414		if(cursor.disable) return; if(dolock)