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git://git.proxmox.com/git/spiceterm.git
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import genfont.c from vncterm
This commit is contained in:
Dietmar Maurer
parent
c4d1da1490
commit
31b5cce2a6
6
Makefile
6
Makefile
@ -12,9 +12,15 @@ all: ${PROGRAMS}
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spiceterm: ${SOURCES} ${HEADERS} spiceterm.c
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gcc -Werror -Wall -Wtype-limits ${SOURCES} -g -O2 -o $@ -lutil $(shell pkg-config) $(shell pkg-config --cflags --libs gthread-2.0,spice-protocol,spice-server)
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genfont: genfont.c
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gcc -g -O2 -o $@ genfont.c -Wall -D_GNU_SOURCE -lz
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keysyms.h: genkeysym.pl
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./genkeysym.pl >$@
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glyphs.h: genfont
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./genfont > glyphs.h
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.PHONY: test
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test: spiceterm
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./spiceterm --noauth --keymap de & remote-viewer spice://localhost?tls-port=5900
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214
genfont.c
Normal file
214
genfont.c
Normal file
@ -0,0 +1,214 @@
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/*
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Copyright (C) 2007-2013 Proxmox Server Solutions GmbH
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Copyright: spiceterm is under GNU GPL, the GNU General Public License.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 dated June, 1991.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA.
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Author: Dietmar Maurer <dietmar@proxmox.com>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <zlib.h> /* read compressed console fonts */
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#include <glob.h>
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#include <string.h>
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/* map unicode to font */
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static unsigned short vt_fontmap[65536];
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/* font glyph storage */
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static unsigned char *vt_font_data = NULL;
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static int vt_font_size = 0;
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static int vt_font_maxsize = 0;
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/* PSF stuff */
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#define PSF_MAGIC1 0x36
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#define PSF_MAGIC2 0x04
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#define PSF_MODE256NOSFM 0
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#define PSF_MODE512NOSFM 1
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#define PSF_MODE256SFM 2
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#define PSF_MODE512SFM 3
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#define PSF_SEPARATOR 0xFFFF
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struct psf_header
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{
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unsigned char magic1, magic2; /* Magic number */
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unsigned char mode; /* PSF font mode */
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unsigned char charheight; /* Character size */
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};
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#define PSF_MAGIC_OK(x) ((x).magic1 == PSF_MAGIC1 && (x).magic2 == PSF_MAGIC2)
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#define PSF_MODE_VALID(x) ((x) <= PSF_MODE512SFM)
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#define PSF_MODE_HAS512(x) (((x) == 1) || ((x) == 3))
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#define PSF_MODE_HASSFM(x) (((x) == 2) || ((x) == 3))
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typedef unsigned short unicode;
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static int
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font_add_glyph (const char *data)
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{
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if (vt_font_size >= vt_font_maxsize) {
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vt_font_maxsize += 256;
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vt_font_data = realloc (vt_font_data, vt_font_maxsize*16);
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}
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memcpy (vt_font_data + vt_font_size*16, data, 16);
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vt_font_size += 1;
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return vt_font_size - 1;
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}
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static int
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load_psf_font (const char *filename, int is_default)
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{
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struct psf_header psfhdr;
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gzFile f = gzopen (filename, "rb");
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if (f == NULL) {
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fprintf (stderr, "unable to read file %s\n", filename);
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exit(-1);
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}
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// read psf header
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if (gzread(f, &psfhdr, sizeof(struct psf_header)) != sizeof(struct psf_header)) {
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fprintf (stderr, "unable to read psf font header (%s)\n", filename);
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gzclose (f);
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return -1;
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}
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if (!PSF_MAGIC_OK(psfhdr) || !PSF_MODE_VALID(psfhdr.mode) ||
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!PSF_MODE_HASSFM(psfhdr.mode) || (psfhdr.charheight != 16)) {
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fprintf (stderr, "no valid 8*16 psf font (%s)\n", filename);
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gzclose (f);
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return -1;
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}
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int charcount = ((PSF_MODE_HAS512(psfhdr.mode)) ? 512 : 256);
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int size = 16*charcount;
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char *chardata = (char *)malloc (size);
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if (size != gzread(f, chardata, size)) {
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fprintf (stderr, "unable to read font character data (%s)\n", filename);
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gzclose (f);
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return -1;
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}
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unicode unichar;
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int glyph;
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for (glyph = 0 ;glyph < charcount ;glyph++) {
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int fi = 0;
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while (gzread (f, &unichar, sizeof(unicode)) == sizeof(unicode) &&
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(unichar != PSF_SEPARATOR)) {
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if (!vt_fontmap[unichar]) {
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if (!fi) {
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fi = font_add_glyph (chardata + glyph*16);
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}
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vt_fontmap[unichar] = fi;
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}
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}
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if (is_default && fi && glyph < 256) {
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vt_fontmap[0xf000 + glyph] = fi;
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}
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}
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free (chardata);
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gzclose (f);
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return 0;
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}
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void
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print_glyphs ()
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{
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int i, j;
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printf ("int vt_font_size = %d;\n\n", vt_font_size);
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printf ("unsigned char vt_font_data[] = {\n");
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for (i = 0; i < vt_font_size; i++) {
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printf ("\t/* %d 0x%02x */\n", i, i);
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for (j = 0; j < 16; j++) {
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unsigned char d = vt_font_data[i*16+j];
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printf ("\t0x%02X, /* ", d);
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int k;
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for (k = 128; k > 0; k = k>>1) {
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printf ("%c", (d & k) ? '1': '0');
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}
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printf (" */\n");
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}
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printf ("\n");
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}
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printf ("};\n\n");
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printf ("unsigned short vt_fontmap[65536] = {\n");
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for (i = 0; i < 0x0ffff; i++) {
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printf ("\t/* 0x%04X => */ %d,\n", i, vt_fontmap[i]);
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}
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printf ("};\n\n");
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}
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int
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main (int argc, char** argv)
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{
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char empty[] = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
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glob_t globbuf;
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font_add_glyph (empty);
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/* font load order is only important if glyphs are redefined */
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load_psf_font ("/usr/share/consolefonts/default8x16.psf.gz", 1); /* vga default */
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load_psf_font ("/usr/share/consolefonts/lat1u-16.psf.gz", 0); /* Latin-1 */
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load_psf_font ("/usr/share/consolefonts/lat2u-16.psf.gz", 0); /* Latin-2 */
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load_psf_font ("/usr/share/consolefonts/lat4u-16.psf.gz", 0); /* Baltic */
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load_psf_font ("/usr/share/consolefonts/iso07.f16.psf.gz", 0); /* Greek */
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load_psf_font ("/usr/share/consolefonts/Goha-16.psf.gz", 0); /* Ethiopic */
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/* fixme: Arabic, Japanese letters ? */
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if (0) {
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glob("/usr/share/consolefonts/*", GLOB_ERR, NULL, &globbuf);
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int i;
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for (i = 0; i < globbuf.gl_pathc; i++) {
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int pc = vt_font_size;
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load_psf_font (globbuf.gl_pathv[i], 0);
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if (vt_font_size > pc) {
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printf ("TEST: %s %d\n", globbuf.gl_pathv[i], vt_font_size - pc);
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}
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}
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} else {
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print_glyphs ();
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}
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exit (0);
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}
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