diff options
Diffstat (limited to 'console-tools')
| -rw-r--r-- | console-tools/Config.in | 17 | ||||
| -rw-r--r-- | console-tools/loadfont.c | 315 |
2 files changed, 224 insertions, 108 deletions
diff --git a/console-tools/Config.in b/console-tools/Config.in index cd0a931..195685b 100644 --- a/console-tools/Config.in +++ b/console-tools/Config.in @@ -135,4 +135,21 @@ config SHOWKEY help Shows keys pressed. +comment "Common options for loadfont and setfont" + depends on LOADFONT || SETFONT + +config FEATURE_LOADFONT_PSF2 + bool "Support for PSF2 console fonts" + default n + depends on LOADFONT || SETFONT + help + Support PSF2 console fonts. + +config FEATURE_LOADFONT_RAW + bool "Support for old (raw) console fonts" + default n + depends on LOADFONT || SETFONT + help + Support old (raw) console fonts. + endmenu diff --git a/console-tools/loadfont.c b/console-tools/loadfont.c index e833474..e51142c 100644 --- a/console-tools/loadfont.c +++ b/console-tools/loadfont.c @@ -13,7 +13,7 @@ #include <sys/kd.h> #ifndef KDFONTOP -#define KDFONTOP 0x4B72 +# define KDFONTOP 0x4B72 struct console_font_op { unsigned op; /* KD_FONT_OP_* */ unsigned flags; /* KD_FONT_FLAG_* */ @@ -21,91 +21,137 @@ struct console_font_op { unsigned charcount; unsigned char *data; /* font data with height fixed to 32 */ }; - -#define KD_FONT_OP_SET 0 /* Set font */ -#define KD_FONT_OP_GET 1 /* Get font */ -#define KD_FONT_OP_SET_DEFAULT 2 /* Set font to default, - data points to name / NULL */ -#define KD_FONT_OP_COPY 3 /* Copy from another console */ - -#define KD_FONT_FLAG_OLD 0x80000000 /* Invoked via old interface */ -#define KD_FONT_FLAG_DONT_RECALC 1 /* Don't call adjust_height() */ +# define KD_FONT_OP_SET 0 /* Set font */ +# define KD_FONT_OP_GET 1 /* Get font */ +# define KD_FONT_OP_SET_DEFAULT 2 /* Set font to default, data points to name / NULL */ +# define KD_FONT_OP_COPY 3 /* Copy from another console */ +# define KD_FONT_FLAG_OLD 0x80000000 /* Invoked via old interface */ +# define KD_FONT_FLAG_DONT_RECALC 1 /* Don't call adjust_height() */ /* (Used internally for PIO_FONT support) */ #endif /* KDFONTOP */ enum { - PSF_MAGIC1 = 0x36, - PSF_MAGIC2 = 0x04, - - PSF_MODE512 = 0x01, - PSF_MODEHASTAB = 0x02, - PSF_MAXMODE = 0x03, - PSF_SEPARATOR = 0xffff + PSF1_MAGIC0 = 0x36, + PSF1_MAGIC1 = 0x04, + PSF1_MODE512 = 0x01, + PSF1_MODEHASTAB = 0x02, + PSF1_MODEHASSEQ = 0x04, + PSF1_MAXMODE = 0x05, + PSF1_STARTSEQ = 0xfffe, + PSF1_SEPARATOR = 0xffff, }; -struct psf_header { - unsigned char magic1, magic2; /* Magic number */ +struct psf1_header { + unsigned char magic[2]; /* Magic number */ unsigned char mode; /* PSF font mode */ unsigned char charsize; /* Character size */ }; -#define PSF_MAGIC_OK(x) ((x)->magic1 == PSF_MAGIC1 && (x)->magic2 == PSF_MAGIC2) +#define psf1h(x) ((struct psf1_header*)(x)) + +#define PSF1_MAGIC_OK(x) ( \ + (x)->magic[0] == PSF1_MAGIC0 \ + && (x)->magic[1] == PSF1_MAGIC1 \ +) + +#if ENABLE_FEATURE_LOADFONT_PSF2 +enum { + PSF2_MAGIC0 = 0x72, + PSF2_MAGIC1 = 0xb5, + PSF2_MAGIC2 = 0x4a, + PSF2_MAGIC3 = 0x86, + PSF2_HAS_UNICODE_TABLE = 0x01, + PSF2_MAXVERSION = 0, + PSF2_STARTSEQ = 0xfe, + PSF2_SEPARATOR = 0xff +}; + +struct psf2_header { + unsigned char magic[4]; + unsigned int version; + unsigned int headersize; /* offset of bitmaps in file */ + unsigned int flags; + unsigned int length; /* number of glyphs */ + unsigned int charsize; /* number of bytes for each character */ + unsigned int height; /* max dimensions of glyphs */ + unsigned int width; /* charsize = height * ((width + 7) / 8) */ +}; + +#define psf2h(x) ((struct psf2_header*)(x)) + +#define PSF2_MAGIC_OK(x) ( \ + (x)->magic[0] == PSF2_MAGIC0 \ + && (x)->magic[1] == PSF2_MAGIC1 \ + && (x)->magic[2] == PSF2_MAGIC2 \ + && (x)->magic[3] == PSF2_MAGIC3 \ +) +#endif /* ENABLE_FEATURE_LOADFONT_PSF2 */ -static void do_loadfont(int fd, unsigned char *inbuf, int unit, int fontsize) + +static void do_loadfont(int fd, unsigned char *inbuf, int height, int width, int charsize, int fontsize) { - char *buf; + unsigned char *buf; + int charwidth = 32 * ((width+7)/8); int i; - if (unit < 1 || unit > 32) - bb_error_msg_and_die("bad character size %d", unit); + if (height < 1 || height > 32 || width < 1 || width > 32) + bb_error_msg_and_die("bad character size %dx%d", height, width); - buf = xzalloc(16 * 1024); + buf = xzalloc(charwidth * ((fontsize < 128) ? 128 : fontsize)); for (i = 0; i < fontsize; i++) - memcpy(buf + (32 * i), inbuf + (unit * i), unit); + memcpy(buf + (i*charwidth), inbuf + (i*charsize), charsize); { /* KDFONTOP */ struct console_font_op cfo; - cfo.op = KD_FONT_OP_SET; cfo.flags = 0; - cfo.width = 8; - cfo.height = unit; + cfo.width = width; + cfo.height = height; cfo.charcount = fontsize; - cfo.data = (void*)buf; -#if 0 - if (!ioctl_or_perror(fd, KDFONTOP, &cfo, "KDFONTOP ioctl failed (will try PIO_FONTX)")) - goto ret; /* success */ -#else + cfo.data = buf; xioctl(fd, KDFONTOP, &cfo); -#endif } -#if 0 -/* These ones do not honour -C tty (they set font on current tty regardless) - * On x86, this distinction is visible on framebuffer consoles - * (regular character consoles may have only one shared font anyway) - */ -#if defined(PIO_FONTX) && !defined(__sparc__) - { - struct consolefontdesc cfd; - - cfd.charcount = fontsize; - cfd.charheight = unit; - cfd.chardata = buf; - - if (!ioctl_or_perror(fd, PIO_FONTX, &cfd, "PIO_FONTX ioctl failed (will try PIO_FONT)")) - goto ret; /* success */ - } -#endif - xioctl(fd, PIO_FONT, buf); - ret: -#endif /* 0 */ free(buf); } -static void do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize) +/* + * Format of the Unicode information: + * + * For each font position <uc>*<seq>*<term> + * where <uc> is a 2-byte little endian Unicode value (PSF1) + * or an UTF-8 coded value (PSF2), + * <seq> = <ss><uc><uc>*, <ss> = psf1 ? 0xFFFE : 0xFE, + * <term> = psf1 ? 0xFFFF : 0xFF. + * and * denotes zero or more occurrences of the preceding item. + * + * Semantics: + * The leading <uc>* part gives Unicode symbols that are all + * represented by this font position. The following sequences + * are sequences of Unicode symbols - probably a symbol + * together with combining accents - also represented by + * this font position. + * + * Example: + * At the font position for a capital A-ring glyph, we + * may have: + * 00C5,212B,FFFE,0041,030A,FFFF + * Some font positions may be described by sequences only, + * namely when there is no precomposed Unicode value for the glyph. + */ +#if !ENABLE_FEATURE_LOADFONT_PSF2 +#define do_loadtable(fd, inbuf, tailsz, fontsize, psf2) \ + do_loadtable(fd, inbuf, tailsz, fontsize) +#endif +static void do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize, int psf2) { +#if !ENABLE_FEATURE_LOADFONT_PSF2 +/* gcc 4.3.1 code size: */ +# define psf2 0 /* +0 bytes */ +// const int psf2 = 0; /* +8 bytes */ +// enum { psf2 = 0 }; /* +13 bytes */ +#endif struct unimapinit advice; struct unimapdesc ud; struct unipair *up; @@ -114,15 +160,48 @@ static void do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize) uint16_t unicode; maxct = tailsz; /* more than enough */ - up = xmalloc(maxct * sizeof(struct unipair)); + up = xmalloc(maxct * sizeof(*up)); for (glyph = 0; glyph < fontsize; glyph++) { - while (tailsz >= 2) { - unicode = (((uint16_t) inbuf[1]) << 8) + inbuf[0]; - tailsz -= 2; - inbuf += 2; - if (unicode == PSF_SEPARATOR) - break; + while (tailsz > 0) { + if (!psf2) { /* PSF1 */ + unicode = (((uint16_t) inbuf[1]) << 8) + inbuf[0]; + tailsz -= 2; + inbuf += 2; + if (unicode == PSF1_SEPARATOR) + break; + } else { /* PSF2 */ +#if ENABLE_FEATURE_LOADFONT_PSF2 + --tailsz; + unicode = *inbuf++; + if (unicode == PSF2_SEPARATOR) { + break; + } else if (unicode == PSF2_STARTSEQ) { + bb_error_msg_and_die("unicode sequences not implemented"); + } else if (unicode >= 0xC0) { + if (unicode >= 0xFC) + unicode &= 0x01, maxct = 5; + else if (unicode >= 0xF8) + unicode &= 0x03, maxct = 4; + else if (unicode >= 0xF0) + unicode &= 0x07, maxct = 3; + else if (unicode >= 0xE0) + unicode &= 0x0F, maxct = 2; + else + unicode &= 0x1F, maxct = 1; + do { + if (tailsz <= 0 || *inbuf < 0x80 || *inbuf > 0xBF) + bb_error_msg_and_die("illegal UTF-8 character"); + --tailsz; + unicode = (unicode << 6) + (*inbuf++ & 0x3F); + } while (--maxct > 0); + } else if (unicode >= 0x80) { + bb_error_msg_and_die("illegal UTF-8 character"); + } +#else + return; +#endif + } up[ct].unicode = unicode; up[ct].fontpos = glyph; ct++; @@ -139,58 +218,78 @@ static void do_loadtable(int fd, unsigned char *inbuf, int tailsz, int fontsize) ud.entry_ct = ct; ud.entries = up; xioctl(fd, PIO_UNIMAP, &ud); +#undef psf2 } -static void do_load(int fd, struct psf_header *psfhdr, size_t len) +static void do_load(int fd, unsigned char *buffer, size_t len) { - int unit; - int fontsize; - int hastable; - unsigned head0, head = head; - - /* test for psf first */ - if (len >= sizeof(struct psf_header) && PSF_MAGIC_OK(psfhdr)) { - if (psfhdr->mode > PSF_MAXMODE) + int height; + int width = 8; + int charsize; + int fontsize = 256; + int has_table = 0; + unsigned char *font = buffer; + unsigned char *table; + + if (len >= sizeof(struct psf1_header) && PSF1_MAGIC_OK(psf1h(buffer))) { + if (psf1h(buffer)->mode > PSF1_MAXMODE) bb_error_msg_and_die("unsupported psf file mode"); - fontsize = ((psfhdr->mode & PSF_MODE512) ? 512 : 256); -#if !defined(PIO_FONTX) || defined(__sparc__) - if (fontsize != 256) - bb_error_msg_and_die("only fontsize 256 supported"); + if (psf1h(buffer)->mode & PSF1_MODE512) + fontsize = 512; + if (psf1h(buffer)->mode & PSF1_MODEHASTAB) + has_table = 1; + height = charsize = psf1h(buffer)->charsize; + font += sizeof(struct psf1_header); + } else +#if ENABLE_FEATURE_LOADFONT_PSF2 + if (len >= sizeof(struct psf2_header) && PSF2_MAGIC_OK(psf2h(buffer))) { + if (psf2h(buffer)->version > PSF2_MAXVERSION) + bb_error_msg_and_die("unsupported psf file version"); + fontsize = psf2h(buffer)->length; + if (psf2h(buffer)->flags & PSF2_HAS_UNICODE_TABLE) + has_table = 2; + charsize = psf2h(buffer)->charsize; + height = psf2h(buffer)->height; + width = psf2h(buffer)->width; + font += psf2h(buffer)->headersize; + } else #endif - hastable = (psfhdr->mode & PSF_MODEHASTAB); - unit = psfhdr->charsize; - head0 = sizeof(struct psf_header); - - head = head0 + fontsize * unit; - if (head > len || (!hastable && head != len)) - bb_error_msg_and_die("input file: bad length"); - } else { - /* file with three code pages? */ - if (len == 9780) { - head0 = 40; - unit = 16; - } else { - /* bare font */ - if (len & 0377) - bb_error_msg_and_die("input file: bad length"); - head0 = 0; - unit = len / 256; - } - fontsize = 256; - hastable = 0; +#if ENABLE_FEATURE_LOADFONT_RAW + if (len == 9780) { /* file with three code pages? */ + charsize = height = 16; + font += 40; + } else if ((len & 0377) == 0) { /* bare font */ + charsize = height = len / 256; + } else +#endif + { + bb_error_msg_and_die("input file: bad length or unsupported font type"); } - do_loadfont(fd, (unsigned char *)psfhdr + head0, unit, fontsize); - if (hastable) - do_loadtable(fd, (unsigned char *)psfhdr + head, len - head, fontsize); +#if !defined(PIO_FONTX) || defined(__sparc__) + if (fontsize != 256) + bb_error_msg_and_die("only fontsize 256 supported"); +#endif + + table = font + fontsize * charsize; + buffer += len; + + if (table > buffer || (!has_table && table != buffer)) + bb_error_msg_and_die("input file: bad length"); + + do_loadfont(fd, font, height, width, charsize, fontsize); + + if (has_table) + do_loadtable(fd, table, buffer - table, fontsize, has_table - 1); } + #if ENABLE_LOADFONT int loadfont_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; int loadfont_main(int argc UNUSED_PARAM, char **argv) { size_t len; - struct psf_header *psfhdr; + unsigned char *buffer; // no arguments allowed! opt_complementary = "=0"; @@ -202,11 +301,11 @@ int loadfont_main(int argc UNUSED_PARAM, char **argv) * just read the entire file. */ len = 32*1024; // can't be larger - psfhdr = xmalloc_read(STDIN_FILENO, &len); + buffer = xmalloc_read(STDIN_FILENO, &len); // xmalloc_open_zipped_read_close(filename, &len); - if (!psfhdr) + if (!buffer) bb_perror_msg_and_die("error reading input font"); - do_load(get_console_fd_or_die(), psfhdr, len); + do_load(get_console_fd_or_die(), buffer, len); return EXIT_SUCCESS; } @@ -269,7 +368,7 @@ int setfont_main(int argc UNUSED_PARAM, char **argv) size_t len; unsigned opts; int fd; - struct psf_header *psfhdr; + unsigned char *buffer; char *mapfilename; const char *tty_name = CURRENT_TTY; @@ -287,10 +386,10 @@ int setfont_main(int argc UNUSED_PARAM, char **argv) } // load font len = 32*1024; // can't be larger - psfhdr = xmalloc_open_zipped_read_close(*argv, &len); - if (!psfhdr) + buffer = xmalloc_open_zipped_read_close(*argv, &len); + if (!buffer) bb_simple_perror_msg_and_die(*argv); - do_load(fd, psfhdr, len); + do_load(fd, buffer, len); // load the screen map, if any if (opts & 1) { // -m |