Module Name: xsrc
Committed By: macallan
Date: Wed Jan 2 22:05:24 UTC 2019
Added Files:
xsrc/local/programs/bdfload: Makefile README bdfload.c
Log Message:
a crude BDF font loader for wsdisplay
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 xsrc/local/programs/bdfload/Makefile \
xsrc/local/programs/bdfload/README xsrc/local/programs/bdfload/bdfload.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: xsrc/local/programs/bdfload/Makefile
diff -u /dev/null xsrc/local/programs/bdfload/Makefile:1.1
--- /dev/null Wed Jan 2 22:05:24 2019
+++ xsrc/local/programs/bdfload/Makefile Wed Jan 2 22:05:24 2019
@@ -0,0 +1,4 @@
+PROG = bdfload
+SRCS = bdfload.c
+
+.include <bsd.prog.mk>
\ No newline at end of file
Index: xsrc/local/programs/bdfload/README
diff -u /dev/null xsrc/local/programs/bdfload/README:1.1
--- /dev/null Wed Jan 2 22:05:24 2019
+++ xsrc/local/programs/bdfload/README Wed Jan 2 22:05:24 2019
@@ -0,0 +1,10 @@
+This will attempt to load a .bdf font into wsdisplay, to be used with
+wsconsctl -dw font=<name>
+Caveats:
+- fonts wider than 16 pixels won't work yet
+- the program does not distinguish between monospace and proportional fonts,
+ and terminal output is necessarily monospace. Proportional fonts should
+ work but the glyphs will be left justified in the character cell so things
+ will look uneven.
+- some drivers may have trouble with font widths that are not a multiple of 4
+- no attempt has been made to make this play nice with vga text mode
Index: xsrc/local/programs/bdfload/bdfload.c
diff -u /dev/null xsrc/local/programs/bdfload/bdfload.c:1.1
--- /dev/null Wed Jan 2 22:05:24 2019
+++ xsrc/local/programs/bdfload/bdfload.c Wed Jan 2 22:05:24 2019
@@ -0,0 +1,180 @@
+/* $NetBSD: bdfload.c,v 1.1 2019/01/02 22:05:24 macallan Exp $ */
+
+/*
+ * Copyright (c) 2018 Michael Lorenz
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * a crude BDF loader for wsdisplay
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <ctype.h>
+#include <sys/ioctl.h>
+#include <err.h>
+
+#include <dev/wscons/wsconsio.h>
+
+void
+interpret(FILE *foo)
+{
+ char line[128], *arg, name[64] = "foop", *buffer, buflen = -1;
+ int len, in_char = 0, current = -1, stride = 0, charsize = 0;
+ int width, height, x, y, num;
+ int first = 255, last = 0;
+ int left, top, lines;
+ int bl = 255, bt = 255, br = -1, bb = -1;
+ struct wsdisplay_font f;
+ int fdev;
+
+ while (fgets(line, sizeof(line), foo) != NULL) {
+ int i = 0;
+ /* separate keyword from parameters */
+ len = strlen(line);
+ while (!isspace(line[i]) && (i < len)) i++;
+ line[i] = 0;
+ arg = &line[i + 1];
+ i = 0;
+ len = strlen(arg);
+ /* get rid of garbage */
+ while ((!iscntrl(arg[i])) && (arg[i] != 0)) {
+ i++;
+ }
+ arg[i] = 0;
+ if (strcmp(line, "FAMILY_NAME") == 0) {
+ /* cut off quotation marks */
+ strncpy(name, arg + 1, 64);
+ name[strlen(name) - 1] = 0;
+ printf("name: %s\n", name);
+ } else if (strcmp(line, "FONTBOUNDINGBOX") == 0) {
+ int res;
+ res = sscanf(arg, "%d %d %d %d",
+ &width, &height, &x, &y);
+ stride = (width + 7) >> 3;
+ printf("box %d x %d\n", width, height);
+ if (stride > 2) {
+ printf("no fonts wider than 16 work for now\n");
+ exit(1);
+ }
+ charsize = height * stride;
+ buflen = 256 * charsize;
+ buffer = malloc(buflen);
+ if (buffer == NULL) {
+ printf("failed to allocate %dKB for glyphs\n",
+ buflen);
+ exit(1);
+ }
+ } else if (strcmp(line, "CHARS") == 0) {
+ if (sscanf(arg, "%d", &num) == 1)
+ printf("number of characters: %d\n", num);
+ } else if (strcmp(line, "STARTCHAR") == 0) {
+ in_char = 1;
+ } else if (strcmp(line, "ENDCHAR") == 0) {
+ in_char = 0;
+ current = -1;
+ } else if (strcmp(line, "ENCODING") == 0) {
+ if (sscanf(arg, "%d", ¤t) == 1) {
+ if (current >= 0 && current < 256) {
+ if (current < first) first = current;
+ if (current > last) last = current;
+ }
+ }
+ } else if (strcmp(line, "BBX") == 0) {
+ int cx, cy, cwi, che;
+ if (sscanf(arg, "%d %d %d %d", &cwi, &che, &cx, &cy)
+ == 4) {
+ left = cx;
+ lines = che;
+ top = height + y - che - cy;
+ if (left < bl) bl = left;
+ if (top < bt) bt = top;
+ if ((left + cwi) > br) br = left + cwi;
+ if ((top + che) > bb) bb = top + che;
+ }
+ } else if (strcmp(line, "BITMAP") == 0) {
+ int i, j, k, l;
+ char num[32];
+ char *gptr = &buffer[charsize * current];
+ char *bptr = gptr + top;
+ uint16_t *bptr16 = (uint16_t *)gptr;
+ bptr16 += top;
+ /* see if the character is in range */
+ if ((current < 0) || (current > 255)) continue;
+ /* now we read & render the character */
+ for (i = 0; i < lines; i++) {
+ fgets(num, 32, foo);
+ sscanf(num, "%x", &l);
+ if ((stride) == 2 && (strlen(num) < 4))
+ l = l << 8;
+ l = l >> left;
+ if (stride == 1) {
+ *gptr = l;
+ gptr++;
+ } else {
+ *bptr16 = htobe16(l);
+ bptr16++;
+ }
+ }
+ }
+ }
+ printf("range %d to %d\n", first, last);
+ printf("actual box: %d %d %d %d\n", bl, bt, br, bb);
+ /* now stuff it into a something wsfont understands */
+ f.fontwidth = width /*(width + 3) & ~3*/;
+ f.fontheight = height;
+ f.firstchar = first;
+ f.numchars = last - first;
+ f.stride = stride;
+ f.encoding = WSDISPLAY_FONTENC_ISO;
+ f.name = name;
+ f.bitorder = WSDISPLAY_FONTORDER_L2R;
+ f.byteorder = WSDISPLAY_FONTORDER_L2R;
+ f.data = &buffer[first * charsize];
+
+ fdev = open("/dev/wsfont", O_RDWR, 0);
+ if (fdev < 0) errx(1, "unable to open /dev/wsfont");
+ ioctl(fdev, WSDISPLAYIO_LDFONT, &f);
+ close(fdev);
+}
+
+void
+main(int argc, char *argv[])
+{
+ FILE *foo;
+ if (argc > 1) {
+ foo = fopen(argv[1], "r");
+ if (foo == NULL) {
+ printf("fopen error %d\n", errno);
+ return;
+ }
+ interpret(foo);
+ } else {
+ printf("usage: bdfload <arg>\n");
+ }
+}
