Index: hw/fb/vt_fb.c
===================================================================
--- hw/fb/vt_fb.c	(revision 264111)
+++ hw/fb/vt_fb.c	(working copy)
@@ -53,6 +53,7 @@
 	.vd_init = vt_fb_init,
 	.vd_blank = vt_fb_blank,
 	.vd_bitbltchr = vt_fb_bitbltchr,
+	.vd_maskbitbltchr = vt_fb_maskbitbltchr,
 	.vd_drawrect = vt_fb_drawrect,
 	.vd_setpixel = vt_fb_setpixel,
 	.vd_postswitch = vt_fb_postswitch,
@@ -189,6 +190,88 @@
 	uint32_t fgc, bgc, cc, o;
 	int c, l, bpp;
 	u_long line;
+	uint8_t b;
+	const uint8_t *ch;
+	uint8_t glbuf[128];
+	uint16_t *glbuf16;
+	uint32_t *glbuf32;
+
+	glbuf16 = (uint16_t *)glbuf;
+	glbuf32 = (uint32_t *)glbuf;
+
+	info = vd->vd_softc;
+	bpp = FBTYPE_GET_BYTESPP(info);
+	fgc = info->fb_cmap[fg];
+	bgc = info->fb_cmap[bg];
+	b = 0;
+	if (bpl == 0)
+		bpl = (width + 7) >> 3; /* Bytes per sorce line. */
+
+	/* Don't try to put off screen pixels */
+	if (((left + width) > info->fb_width) || ((top + height) >
+	    info->fb_height))
+		return;
+
+	line = (info->fb_stride * top) + (left * bpp);
+	for (l = 0; l < height; l++) {
+		ch = src;
+		for (c = 0; c < width; c++) {
+			if (c % 8 == 0)
+				b = *ch++;
+			else
+				b <<= 1;
+			o = line + (c * bpp);
+			cc = b & 0x80 ? fgc : bgc;
+
+			switch(bpp) {
+			case 1:
+				glbuf[c] = cc;
+				break;
+			case 2:
+				glbuf16[c] = cc;
+				break;
+			case 3:
+				/* Packed mode, so unaligned. Byte access. */
+				glbuf[c * 3] = (cc >> 16) & 0xff;
+				glbuf[(c * 3) + 1] = (cc >> 8) & 0xff;
+				glbuf[(c * 3) + 2] = cc & 0xff;
+				break;
+			case 4:
+				glbuf32[c] = cc;
+				break;
+			default:
+				/* panic? */
+				break;
+			}
+		}
+
+
+		switch(bpp) {
+		case 1:
+		case 2:
+		case 3:
+		case 4:
+			memcpy((uint8_t *)(info->fb_vbase + line), glbuf32, width * bpp);
+		default:
+			/* panic? */
+			break;
+		}
+
+
+		line += info->fb_stride;
+		src += bpl;
+	}
+}
+
+void
+vt_fb_maskbitbltchr(struct vt_device *vd, const uint8_t *src, const uint8_t *mask,
+    int bpl, vt_axis_t top, vt_axis_t left, unsigned int width,
+    unsigned int height, term_color_t fg, term_color_t bg)
+{
+	struct fb_info *info;
+	uint32_t fgc, bgc, cc, o;
+	int c, l, bpp;
+	u_long line;
 	uint8_t b, m;
 	const uint8_t *ch;
 
Index: hw/fb/vt_fb.h
===================================================================
--- hw/fb/vt_fb.h	(revision 264111)
+++ hw/fb/vt_fb.h	(working copy)
@@ -41,6 +41,7 @@
 vd_init_t	vt_fb_init;
 vd_blank_t	vt_fb_blank;
 vd_bitbltchr_t	vt_fb_bitbltchr;
+vd_maskbitbltchr_t vt_fb_maskbitbltchr;
 vd_postswitch_t	vt_fb_postswitch;