1992/1110/pc/vga.c (diff list | history)

1992/1109/sys/src/9/pc/vga.c:241,247 – 1992/1110/sys/src/9/pc/vga.c:241,247 (short | long | prev | next)
1992/1109		else vgascreen.ldepth = 0;
1992/1106		vgascreen.base = (void*)SCREENMEM; vgascreen.width = (maxx*(1<<ldepth))/32;
1992/1110		vgascreen.width = (maxx*(1<<vgascreen.ldepth))/32;
1992/1106		vgascreen.r.max = Pt(maxx, maxy); vgascreen.clipr.max = vgascreen.r.max;
1992/1109/sys/src/9/pc/vga.c:252,258 – 1992/1110/sys/src/9/pc/vga.c:252,258
1992/1106		gscreen.width = (maxx*(1<<ldepth))/32;
1992/0603		gscreen.r.max = Pt(maxx, maxy);
1992/0604		gscreen.clipr.max = gscreen.r.max;
1992/1106		len = gscreen.width * 4 * maxy;
1992/1110		len = gscreen.width * BY2WD * maxy;
1992/1109		if(gscreen.base){ free(gscreen.base); gscreen.base = ((ulong*)smalloc(len+2*1024))+256;
1992/1109/sys/src/9/pc/vga.c:271,277 – 1992/1110/sys/src/9/pc/vga.c:271,277
1992/0603		void
1991/0730		screeninit(void)
1991/0723		{
1992/0711		int i;
1992/1110		int i, x;
1991/0730		ulong *l;
1991/0723
1992/0527		setmode(&mode12);
1992/1109/sys/src/9/pc/vga.c:300,307 – 1992/1110/sys/src/9/pc/vga.c:300,317
1992/1106		conf.maxx = MAXX; if(conf.maxy == 0) conf.maxy = MAXY;                  setscreen(conf.maxx, conf.maxy, conf.ldepth);
1992/1110		/* * set up default grey scale color map */ outb(CMWX, 0); for(i = 0; i < 16; i++){ x = (i*63)/15; outb(CM, x); outb(CM, x); outb(CM, x); }
1991/0723		}
1991/0727
1992/1106		/*
1992/1109/sys/src/9/pc/vga.c:341,347 – 1992/1110/sys/src/9/pc/vga.c:351,357
1992/1108		screenupdate(void) { uchar *sp, *hp;
1992/1109		int y, len, incs, inch, bits;
1992/1110		int y, len, incs, inch, bits, off;
1992/1108		Rectangle r; r = mbb;
1992/1109/sys/src/9/pc/vga.c:360,369 – 1992/1110/sys/src/9/pc/vga.c:370,380
1992/1108		r.max.y = gscreen.r.max.y;
1992/1109		bits = 1<<vgascreen.ldepth;
1992/1108		sp = (uchar*)gaddr(&gscreen, r.min); hp = (uchar*)gaddr(&vgascreen, r.min);
1992/1109		len = (r.max.x*bits + 31)/32 - (r.min.x*bits)/32;
1992/1108		len *= BY2WD;
1992/1110		off = (r.min.x*bits)>>(3-vgascreen.ldepth); hp = (uchar*)(vgascreen.base+(r.min.y*vgascreen.width)) + off; off <<= gscreen.ldepth - vgascreen.ldepth; sp = (uchar*)(gscreen.base+(r.min.y*gscreen.width)) + off; len = (r.max.x*bits + 7)/8 - (r.min.x*bits)/8;
1992/1108		if(len <= 0) return;
1992/1109/sys/src/9/pc/vga.c:446,452 – 1992/1110/sys/src/9/pc/vga.c:457,462
1991/1228		} }
1992/1106		rs.max = Pt(gscreen.r.max.x, out.pos.y+defont0.height); unlock(&screenlock); mbbrect(rs); screenupdate();
1991/0730		}
1992/1109/sys/src/9/pc/vga.c:454,460 – 1992/1110/sys/src/9/pc/vga.c:464,470
1991/0730		int screenbits(void) { return 1; /* bits per pixel */
1992/1110		return 1<<gscreen.ldepth; /* bits per pixel */
1991/0730		}
1992/1106