patch-2.1.112 linux/drivers/video/fbcon-cfb16.c

• Lines: 307
• Date: Sun Jul 26 14:40:19 1998
• Orig file: v2.1.111/linux/drivers/video/fbcon-cfb16.c
• Orig date: Sun Jul 26 11:57:17 1998

diff -u --recursive --new-file v2.1.111/linux/drivers/video/fbcon-cfb16.c linux/drivers/video/fbcon-cfb16.c
@@ -47,23 +47,34 @@
     int bytes = p->next_line, linesize = bytes * p->fontheight, rows;
     u8 *src, *dst;
 
-    if (sx == 0 && dx == 0 && width * 16 == bytes)
+    if (sx == 0 && dx == 0 && width * p->fontwidth * 2 == bytes) {
 	mymemmove(p->screen_base + dy * linesize,
 		  p->screen_base + sy * linesize,
 		  height * linesize);
-    else if (dy < sy || (dy == sy && dx < sx)) {
-	src = p->screen_base + sy * linesize + sx * 16;
-	dst = p->screen_base + dy * linesize + dx * 16;
-	for (rows = height * p->fontheight ; rows-- ;) {
-	    mymemmove(dst, src, width * 16);
+	return;
+    }
+    if (p->fontwidthlog) {
+	sx <<= p->fontwidthlog+1;
+	dx <<= p->fontwidthlog+1;
+	width <<= p->fontwidthlog+1;
+    } else {
+	sx *= p->fontwidth*2;
+	dx *= p->fontwidth*2;
+	width *= p->fontwidth*2;
+    }
+    if (dy < sy || (dy == sy && dx < sx)) {
+	src = p->screen_base + sy * linesize + sx;
+	dst = p->screen_base + dy * linesize + dx;
+	for (rows = height * p->fontheight; rows--;) {
+	    mymemmove(dst, src, width);
 	    src += bytes;
 	    dst += bytes;
 	}
     } else {
-	src = p->screen_base + (sy+height) * linesize + sx * 16 - bytes;
-	dst = p->screen_base + (dy+height) * linesize + dx * 16 - bytes;
-	for (rows = height * p->fontheight ; rows-- ;) {
-	    mymemmove(dst, src, width * 16);
+	src = p->screen_base + (sy+height) * linesize + sx - bytes;
+	dst = p->screen_base + (dy+height) * linesize + dx - bytes;
+	for (rows = height * p->fontheight; rows--;) {
+	    mymemmove(dst, src, width);
 	    src -= bytes;
 	    dst -= bytes;
 	}
@@ -77,29 +88,26 @@
     int bytes = p->next_line, lines = height * p->fontheight, rows, i;
     u32 bgx;
 
-    dest = p->screen_base + sy * p->fontheight * bytes + sx * 16;
+    dest = p->screen_base + sy * p->fontheight * bytes + sx * p->fontwidth * 2;
 
     bgx = fbcon_cfb16_cmap[attr_bgcol_ec(p, conp)];
     bgx |= (bgx << 16);
 
-    if (sx == 0 && width * 16 == bytes)
-	for (i = 0 ; i < lines * width ; i++) {
+    width *= p->fontwidth/4;
+    if (sx == 0 && width * 8 == bytes)
+	for (i = 0; i < lines * width; i++) {
 	    ((u32 *)dest)[0] = bgx;
 	    ((u32 *)dest)[1] = bgx;
-	    ((u32 *)dest)[2] = bgx;
-	    ((u32 *)dest)[3] = bgx;
-	    dest += 16;
+	    dest += 8;
 	}
     else {
 	dest0 = dest;
-	for (rows = lines; rows-- ; dest0 += bytes) {
+	for (rows = lines; rows--; dest0 += bytes) {
 	    dest = dest0;
-	    for (i = 0 ; i < width ; i++) {
+	    for (i = 0; i < width; i++) {
 		((u32 *)dest)[0] = bgx;
 		((u32 *)dest)[1] = bgx;
-		((u32 *)dest)[2] = bgx;
-		((u32 *)dest)[3] = bgx;
-		dest += 16;
+		dest += 8;
 	    }
 	}
     }
@@ -108,12 +116,11 @@
 void fbcon_cfb16_putc(struct vc_data *conp, struct display *p, int c, int yy,
 		      int xx)
 {
-    u8 *dest, *cdat;
+    u8 *dest, *cdat, bits;
     int bytes = p->next_line, rows;
     u32 eorx, fgx, bgx;
 
-    dest = p->screen_base + yy * p->fontheight * bytes + xx * 16;
-    cdat = p->fontdata + (c & 0xff) * p->fontheight;
+    dest = p->screen_base + yy * p->fontheight * bytes + xx * p->fontwidth * 2;
 
     fgx = fbcon_cfb16_cmap[attr_fgcol(p, c)];
     bgx = fbcon_cfb16_cmap[attr_bgcol(p, c)];
@@ -121,41 +128,112 @@
     bgx |= (bgx << 16);
     eorx = fgx ^ bgx;
 
-    for (rows = p->fontheight ; rows-- ; dest += bytes) {
-	u8 bits = *cdat++;
-	((u32 *)dest)[0] = (tab_cfb16[bits >> 6] & eorx) ^ bgx;
-	((u32 *)dest)[1] = (tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx;
-	((u32 *)dest)[2] = (tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx;
-	((u32 *)dest)[3] = (tab_cfb16[bits & 3] & eorx) ^ bgx;
+#ifndef CONFIG_FBCON_FONTWIDTH8_ONLY
+    switch (p->fontwidth) {
+    case 4:
+    case 8:
+#endif
+	cdat = p->fontdata + (c & p->charmask) * p->fontheight;
+	for (rows = p->fontheight; rows--; dest += bytes) {
+	    bits = *cdat++;
+	    ((u32 *)dest)[0] = (tab_cfb16[bits >> 6] & eorx) ^ bgx;
+	    ((u32 *)dest)[1] = (tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx;
+#ifndef CONFIG_FBCON_FONTWIDTH8_ONLY
+	    if (p->fontwidth == 8)
+#endif
+	    {
+		((u32 *)dest)[2] = (tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx;
+		((u32 *)dest)[3] = (tab_cfb16[bits & 3] & eorx) ^ bgx;
+	    }
+	}
+#ifndef CONFIG_FBCON_FONTWIDTH8_ONLY
+	break;
+    case 12:
+    case 16:
+	cdat = p->fontdata + ((c & p->charmask) * p->fontheight << 1);
+	for (rows = p->fontheight; rows--; dest += bytes) {
+	    bits = *cdat++;
+	    ((u32 *)dest)[0] = (tab_cfb16[bits >> 6] & eorx) ^ bgx;
+	    ((u32 *)dest)[1] = (tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx;
+	    ((u32 *)dest)[2] = (tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx;
+	    ((u32 *)dest)[3] = (tab_cfb16[bits & 3] & eorx) ^ bgx;
+	    bits = *cdat++;
+	    ((u32 *)dest)[4] = (tab_cfb16[bits >> 6] & eorx) ^ bgx;
+	    ((u32 *)dest)[5] = (tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx;
+	    if (p->fontwidth == 16) {
+		((u32 *)dest)[6] = (tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx;
+		((u32 *)dest)[7] = (tab_cfb16[bits & 3] & eorx) ^ bgx;
+	    }
+	}
+	break;
     }
+#endif
 }
 
-void fbcon_cfb16_putcs(struct vc_data *conp, struct display *p, 
+void fbcon_cfb16_putcs(struct vc_data *conp, struct display *p,
 		       const unsigned short *s, int count, int yy, int xx)
 {
-    u8 *cdat, c, *dest, *dest0;
+    u8 *cdat, *dest, *dest0;
+    u16 c;
     int rows, bytes = p->next_line;
     u32 eorx, fgx, bgx;
 
-    dest0 = p->screen_base + yy * p->fontheight * bytes + xx * 16;
+    dest0 = p->screen_base + yy * p->fontheight * bytes + xx * p->fontwidth * 2;
     fgx = fbcon_cfb16_cmap[attr_fgcol(p, *s)];
     bgx = fbcon_cfb16_cmap[attr_bgcol(p, *s)];
     fgx |= (fgx << 16);
     bgx |= (bgx << 16);
     eorx = fgx ^ bgx;
-    while (count--) {
-	c = *s++;
-	cdat = p->fontdata + c * p->fontheight;
 
-	for (rows = p->fontheight, dest = dest0; rows-- ; dest += bytes) {
-	    u8 bits = *cdat++;
-	    ((u32 *)dest)[0] = (tab_cfb16[bits >> 6] & eorx) ^ bgx;
-	    ((u32 *)dest)[1] = (tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx;
-	    ((u32 *)dest)[2] = (tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx;
-	    ((u32 *)dest)[3] = (tab_cfb16[bits & 3] & eorx) ^ bgx;
+#ifndef CONFIG_FBCON_FONTWIDTH8_ONLY
+    switch (p->fontwidth) {
+    case 4:
+    case 8:
+#endif
+	while (count--) {
+	    c = *s++ & p->charmask;
+	    cdat = p->fontdata + c * p->fontheight;
+	    for (rows = p->fontheight, dest = dest0; rows--; dest += bytes) {
+		u8 bits = *cdat++;
+		((u32 *)dest)[0] = (tab_cfb16[bits >> 6] & eorx) ^ bgx;
+		((u32 *)dest)[1] = (tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx;
+#ifndef CONFIG_FBCON_FONTWIDTH8_ONLY
+		if (p->fontwidth == 8)
+#endif
+		{
+		
+		    ((u32 *)dest)[2] = (tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx;
+		    ((u32 *)dest)[3] = (tab_cfb16[bits & 3] & eorx) ^ bgx;
+		}
+	    }
+	    dest0 += p->fontwidth*2;;
+	}
+#ifndef CONFIG_FBCON_FONTWIDTH8_ONLY
+	break;
+    case 12:
+    case 16:
+	while (count--) {
+	    c = *s++ & p->charmask;
+	    cdat = p->fontdata + (c * p->fontheight << 1);
+	    for (rows = p->fontheight, dest = dest0; rows--; dest += bytes) {
+		u8 bits = *cdat++;
+		((u32 *)dest)[0] = (tab_cfb16[bits >> 6] & eorx) ^ bgx;
+		((u32 *)dest)[1] = (tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx;
+		((u32 *)dest)[2] = (tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx;
+		((u32 *)dest)[3] = (tab_cfb16[bits & 3] & eorx) ^ bgx;
+		bits = *cdat++;
+		((u32 *)dest)[4] = (tab_cfb16[bits >> 6] & eorx) ^ bgx;
+		((u32 *)dest)[5] = (tab_cfb16[bits >> 4 & 3] & eorx) ^ bgx;
+		if (p->fontwidth == 16) {
+		    ((u32 *)dest)[6] = (tab_cfb16[bits >> 2 & 3] & eorx) ^ bgx;
+		    ((u32 *)dest)[7] = (tab_cfb16[bits & 3] & eorx) ^ bgx;
+		}
+	    }
+	    dest0 += p->fontwidth*2;
 	}
-	dest0 += 16;
+	break;
     }
+#endif
 }
 
 void fbcon_cfb16_revc(struct display *p, int xx, int yy)
@@ -163,12 +241,60 @@
     u8 *dest;
     int bytes = p->next_line, rows;
 
-    dest = p->screen_base + yy * p->fontheight * bytes + xx * 16;
-    for (rows = p->fontheight ; rows-- ; dest += bytes) {
-	((u32 *)dest)[0] ^= 0xffffffff;
-	((u32 *)dest)[1] ^= 0xffffffff;
-	((u32 *)dest)[2] ^= 0xffffffff;
-	((u32 *)dest)[3] ^= 0xffffffff;
+    dest = p->screen_base + yy * p->fontheight * bytes + xx * p->fontwidth*2;
+    for (rows = p->fontheight; rows--; dest += bytes) {
+#ifdef CONFIG_FBCON_FONTWIDTH8_ONLY
+	((u32 *)dest)[2] ^= 0xffffffff; ((u32 *)dest)[3] ^= 0xffffffff;
+	((u32 *)dest)[0] ^= 0xffffffff; ((u32 *)dest)[1] ^= 0xffffffff;
+#else
+	switch (p->fontwidth) {
+	case 16:
+	    ((u32 *)dest)[6] ^= 0xffffffff; ((u32 *)dest)[7] ^= 0xffffffff;
+	    /* FALL THROUGH */
+	case 12:
+	    ((u32 *)dest)[4] ^= 0xffffffff; ((u32 *)dest)[5] ^= 0xffffffff;
+	    /* FALL THROUGH */
+	case 8:
+	    ((u32 *)dest)[2] ^= 0xffffffff; ((u32 *)dest)[3] ^= 0xffffffff;
+	    /* FALL THROUGH */
+	case 4:
+	    ((u32 *)dest)[0] ^= 0xffffffff; ((u32 *)dest)[1] ^= 0xffffffff;
+	}
+#endif
+    }
+}
+
+void fbcon_cfb16_clear_margins(struct vc_data *conp, struct display *p)
+{
+    u8 *dest0;
+    u32 *dest;
+    int bytes = p->next_line;
+    u32 bgx;
+    int i, j;
+
+    unsigned int right_start = conp->vc_cols*p->fontwidth;
+    unsigned int right_width = p->var.xres_virtual-right_start;
+    unsigned int bottom_start = conp->vc_rows*p->fontheight;
+    unsigned int bottom_width = p->var.yres_virtual-bottom_start;
+
+    bgx = fbcon_cfb16_cmap[attr_bgcol_ec(p, conp)];
+    bgx |= (bgx << 16);
+
+    if (right_width) {
+	dest0 = p->screen_base+right_start*2;
+	for (i = 0; i < bottom_start; i++, dest0 += bytes) {
+	    for (j = 0, dest = (u32 *)dest0; j < right_width/2; j++)
+		*dest++ = bgx;
+	    if (right_width & 1)
+		*(u16 *)dest = bgx;
+	}
+    }
+    if (bottom_width) {
+	dest = (u32 *)(p->screen_base+bottom_start*bytes);
+	for (i = 0; i < bytes*bottom_width/4; i++)
+	    *dest++ = bgx;
+	if ((bytes*bottom_width) & 2)
+	    *(u16 *)dest = bgx;
     }
 }
 
@@ -179,7 +305,8 @@
 
 struct display_switch fbcon_cfb16 = {
     fbcon_cfb16_setup, fbcon_cfb16_bmove, fbcon_cfb16_clear, fbcon_cfb16_putc,
-    fbcon_cfb16_putcs, fbcon_cfb16_revc, NULL, NULL, NULL, FONTWIDTH(8)
+    fbcon_cfb16_putcs, fbcon_cfb16_revc, NULL, NULL, fbcon_cfb16_clear_margins,
+    FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
 };