1992/1106/pc/vga.c (diff list | history)

1992/1106/sys/src/9/pc/vga.c:250,257 – 1992/1107/sys/src/9/pc/vga.c:250,257 (short | long | prev | next)
1992/0603		gscreen.r.max = Pt(maxx, maxy);
1992/0604		gscreen.clipr.max = gscreen.r.max;
1992/1106		len = gscreen.width * 4 * maxy; gscreen.base = malloc(len); memset((void*)gscreen.base, 0xff, len);
1992/1107		gscreen.base = ((ulong*)malloc(len+2*1024))+256; memset((char*)gscreen.base, 0xff, len);
1992/1106		/* * set string pointer to upper left
1992/1106/sys/src/9/pc/vga.c:325,331 – 1992/1107/sys/src/9/pc/vga.c:325,330
1992/1106		mbb.max.x = p.x+1; if (p.y >= mbb.max.y) mbb.max.y = p.y+1; screenupdate(); } void
1992/1106/sys/src/9/pc/vga.c:403,413 – 1992/1107/sys/src/9/pc/vga.c:402,424
1992/1106		{ uchar *sp, *hp, *se; int y, len, inc; Rectangle r=mbb;
1992/1107		Rectangle r;
1992/1106
1992/1107		r = mbb; mbb = NULLMBB;
1992/1106		if(Dy(r) < 0) return;
1992/1107		if(r.min.x < 0) r.min.x = 0; if(r.min.y < 0) r.min.y = 0; if(r.max.x > gscreen.r.max.x) r.max.x = gscreen.r.max.x; if(r.max.y > gscreen.r.max.y) r.max.y = gscreen.r.max.y;
1992/1106		sp = (uchar*)gaddr(&gscreen, r.min); hp = (uchar*)gaddr(&vgascreen, r.min);
1992/1106/sys/src/9/pc/vga.c:414,429 – 1992/1107/sys/src/9/pc/vga.c:425,440
1992/1106		len = (r.max.x * (1<<gscreen.ldepth) + 31)/32 - (r.min.x * (1<<gscreen.ldepth))/32; len *= BY2WD;
1992/1107		if(len <= 0) return;
1992/1106		inc = gscreen.width * BY2WD - len; for (y = r.min.y; y < r.max.y; y++){ for(se = sp + len; sp < se;) *hp++ = cswizzle[*sp++]; sp += inc; hp += inc;
1992/1107		l0update(sp, hp, len); sp += inc+len; hp += inc+len;
1992/1106		} mbb = NULLMBB; } void