From 6c0ac7f692e46d669d992bebf6d386306b6c42e6 Mon Sep 17 00:00:00 2001 From: Eugene Sandulenko Date: Sun, 8 Mar 2009 17:20:33 +0000 Subject: Resurrection of SCI tools. Step 1. svn-id: r39240 --- tools/sci/bdf.cpp | 7434 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 7434 insertions(+) create mode 100644 tools/sci/bdf.cpp (limited to 'tools/sci/bdf.cpp') diff --git a/tools/sci/bdf.cpp b/tools/sci/bdf.cpp new file mode 100644 index 0000000000..8606688f8c --- /dev/null +++ b/tools/sci/bdf.cpp @@ -0,0 +1,7434 @@ +/* + * Copyright 2001 Computing Research Labs, New Mexico State University + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY + * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT + * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ +#ifndef lint +#ifdef __GNUC__ +static char rcsid[] __attribute__((unused)) = "$Id$"; +#else +static char rcsid[] = "$Id$"; +#endif +#endif + +#include "bdfP.h" + +#ifdef HAVE_HBF +#include "hbf.h" +#endif + +#undef MAX +#define MAX(h, i) ((h) > (i) ? (h) : (i)) + +#undef MIN +#define MIN(l, o) ((l) < (o) ? (l) : (o)) + +/************************************************************************** + * + * Masks used for checking different bits per pixel cases. + * + **************************************************************************/ + +unsigned char onebpp[] = { 0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01 }; +unsigned char twobpp[] = { 0xc0, 0x30, 0x0c, 0x03 }; +unsigned char fourbpp[] = { 0xf0, 0x0f }; +unsigned char eightbpp[] = { 0xff }; + +/************************************************************************** + * + * Default BDF font options. + * + **************************************************************************/ + +static bdf_options_t _bdf_opts = { + 1, /* Hint TTF glyphs. */ + 1, /* Correct metrics. */ + 1, /* Preserve unencoded glyphs. */ + 1, /* Preserve comments. */ + 1, /* Pad character-cells. */ + BDF_PROPORTIONAL, /* Default spacing. */ + 12, /* Default point size. */ + 0, /* Default horizontal resolution. */ + 0, /* Default vertical resolution. */ + 1, /* Bits per pixel. */ + BDF_UNIX_EOL, /* Line separator. */ +}; + +/************************************************************************** + * + * Builtin BDF font properties. + * + **************************************************************************/ + +/* + * List of most properties that might appear in a font. Doesn't include the + * RAW_* and AXIS_* properties in X11R6 polymorphic fonts. + */ +static bdf_property_t _bdf_properties[] = { + {"ADD_STYLE_NAME", BDF_ATOM, 1}, + {"AVERAGE_WIDTH", BDF_INTEGER, 1}, + {"AVG_CAPITAL_WIDTH", BDF_INTEGER, 1}, + {"AVG_LOWERCASE_WIDTH", BDF_INTEGER, 1}, + {"CAP_HEIGHT", BDF_INTEGER, 1}, + {"CHARSET_COLLECTIONS", BDF_ATOM, 1}, + {"CHARSET_ENCODING", BDF_ATOM, 1}, + {"CHARSET_REGISTRY", BDF_ATOM, 1}, + {"COMMENT", BDF_ATOM, 1}, + {"COPYRIGHT", BDF_ATOM, 1}, + {"DEFAULT_CHAR", BDF_CARDINAL, 1}, + {"DESTINATION", BDF_CARDINAL, 1}, + {"DEVICE_FONT_NAME", BDF_ATOM, 1}, + {"END_SPACE", BDF_INTEGER, 1}, + {"FACE_NAME", BDF_ATOM, 1}, + {"FAMILY_NAME", BDF_ATOM, 1}, + {"FIGURE_WIDTH", BDF_INTEGER, 1}, + {"FONT", BDF_ATOM, 1}, + {"FONTNAME_REGISTRY", BDF_ATOM, 1}, + {"FONT_ASCENT", BDF_INTEGER, 1}, + {"FONT_DESCENT", BDF_INTEGER, 1}, + {"FOUNDRY", BDF_ATOM, 1}, + {"FULL_NAME", BDF_ATOM, 1}, + {"ITALIC_ANGLE", BDF_INTEGER, 1}, + {"MAX_SPACE", BDF_INTEGER, 1}, + {"MIN_SPACE", BDF_INTEGER, 1}, + {"NORM_SPACE", BDF_INTEGER, 1}, + {"NOTICE", BDF_ATOM, 1}, + {"PIXEL_SIZE", BDF_INTEGER, 1}, + {"POINT_SIZE", BDF_INTEGER, 1}, + {"QUAD_WIDTH", BDF_INTEGER, 1}, + {"RAW_ASCENT", BDF_INTEGER, 1}, + {"RAW_AVERAGE_WIDTH", BDF_INTEGER, 1}, + {"RAW_AVG_CAPITAL_WIDTH", BDF_INTEGER, 1}, + {"RAW_AVG_LOWERCASE_WIDTH", BDF_INTEGER, 1}, + {"RAW_CAP_HEIGHT", BDF_INTEGER, 1}, + {"RAW_DESCENT", BDF_INTEGER, 1}, + {"RAW_END_SPACE", BDF_INTEGER, 1}, + {"RAW_FIGURE_WIDTH", BDF_INTEGER, 1}, + {"RAW_MAX_SPACE", BDF_INTEGER, 1}, + {"RAW_MIN_SPACE", BDF_INTEGER, 1}, + {"RAW_NORM_SPACE", BDF_INTEGER, 1}, + {"RAW_PIXEL_SIZE", BDF_INTEGER, 1}, + {"RAW_POINT_SIZE", BDF_INTEGER, 1}, + {"RAW_PIXELSIZE", BDF_INTEGER, 1}, + {"RAW_POINTSIZE", BDF_INTEGER, 1}, + {"RAW_QUAD_WIDTH", BDF_INTEGER, 1}, + {"RAW_SMALL_CAP_SIZE", BDF_INTEGER, 1}, + {"RAW_STRIKEOUT_ASCENT", BDF_INTEGER, 1}, + {"RAW_STRIKEOUT_DESCENT", BDF_INTEGER, 1}, + {"RAW_SUBSCRIPT_SIZE", BDF_INTEGER, 1}, + {"RAW_SUBSCRIPT_X", BDF_INTEGER, 1}, + {"RAW_SUBSCRIPT_Y", BDF_INTEGER, 1}, + {"RAW_SUPERSCRIPT_SIZE", BDF_INTEGER, 1}, + {"RAW_SUPERSCRIPT_X", BDF_INTEGER, 1}, + {"RAW_SUPERSCRIPT_Y", BDF_INTEGER, 1}, + {"RAW_UNDERLINE_POSITION", BDF_INTEGER, 1}, + {"RAW_UNDERLINE_THICKNESS", BDF_INTEGER, 1}, + {"RAW_X_HEIGHT", BDF_INTEGER, 1}, + {"RELATIVE_SETWIDTH", BDF_CARDINAL, 1}, + {"RELATIVE_WEIGHT", BDF_CARDINAL, 1}, + {"RESOLUTION", BDF_INTEGER, 1}, + {"RESOLUTION_X", BDF_CARDINAL, 1}, + {"RESOLUTION_Y", BDF_CARDINAL, 1}, + {"SETWIDTH_NAME", BDF_ATOM, 1}, + {"SLANT", BDF_ATOM, 1}, + {"SMALL_CAP_SIZE", BDF_INTEGER, 1}, + {"SPACING", BDF_ATOM, 1}, + {"STRIKEOUT_ASCENT", BDF_INTEGER, 1}, + {"STRIKEOUT_DESCENT", BDF_INTEGER, 1}, + {"SUBSCRIPT_SIZE", BDF_INTEGER, 1}, + {"SUBSCRIPT_X", BDF_INTEGER, 1}, + {"SUBSCRIPT_Y", BDF_INTEGER, 1}, + {"SUPERSCRIPT_SIZE", BDF_INTEGER, 1}, + {"SUPERSCRIPT_X", BDF_INTEGER, 1}, + {"SUPERSCRIPT_Y", BDF_INTEGER, 1}, + {"UNDERLINE_POSITION", BDF_INTEGER, 1}, + {"UNDERLINE_THICKNESS", BDF_INTEGER, 1}, + {"WEIGHT", BDF_CARDINAL, 1}, + {"WEIGHT_NAME", BDF_ATOM, 1}, + {"X_HEIGHT", BDF_INTEGER, 1}, + {"_MULE_BASELINE_OFFSET", BDF_INTEGER, 1}, + {"_MULE_RELATIVE_COMPOSE", BDF_INTEGER, 1}, +}; + +static unsigned long _num_bdf_properties = + sizeof(_bdf_properties) / sizeof(_bdf_properties[0]); + +/* + * User defined properties. + */ +static bdf_property_t *user_props; +static unsigned long nuser_props = 0; + +/************************************************************************** + * + * Hash table utilities for the properties. + * + **************************************************************************/ + +#define INITIAL_HT_SIZE 241 + +typedef struct { + char *key; + void *data; +} _hashnode, *hashnode; + +typedef struct { + int limit; + int size; + int used; + hashnode *table; +} hashtable; + +typedef void (*hash_free_func)( +#ifdef __STDC__ + hashnode node +#endif +); + +static hashnode * +#ifdef __STDC__ +hash_bucket(char *key, hashtable *ht) +#else +hash_bucket(key, ht) +char *key; +hashtable *ht; +#endif +{ + char *kp = key; + unsigned long res = 0; + hashnode *bp = ht->table, *ndp; + + /* + * Mocklisp hash function. + */ + while (*kp) + res = (res << 5) - res + *kp++; + + ndp = bp + (res % ht->size); + while (*ndp) { + kp = (*ndp)->key; + if (kp[0] == key[0] && strcmp(kp, key) == 0) + break; + ndp--; + if (ndp < bp) + ndp = bp + (ht->size - 1); + } + return ndp; +} + +static void +#ifdef __STDC__ +hash_rehash(hashtable *ht) +#else +hash_rehash(ht) +hashtable *ht; +#endif +{ + hashnode *obp = ht->table, *bp, *nbp; + int i, sz = ht->size; + + ht->size <<= 1; + ht->limit = ht->size / 3; + ht->table = (hashnode *) malloc(sizeof(hashnode) * ht->size); + (void) memset((char *) ht->table, 0, sizeof(hashnode) * ht->size); + + for (i = 0, bp = obp; i < sz; i++, bp++) { + if (*bp) { + nbp = hash_bucket((*bp)->key, ht); + *nbp = *bp; + } + } + free((char *) obp); +} + +static void +#ifdef __STDC__ +hash_init(hashtable *ht) +#else +hash_init(ht) +hashtable *ht; +#endif +{ + int sz = INITIAL_HT_SIZE; + + ht->size = sz; + ht->limit = sz / 3; + ht->used = 0; + ht->table = (hashnode *) malloc(sizeof(hashnode) * sz); + (void) memset((char *) ht->table, 0, sizeof(hashnode) * sz); +} + +static void +#ifdef __STDC__ +hash_free(hashtable *ht) +#else +hash_free(ht) +hashtable *ht; +#endif +{ + int i, sz = ht->size; + hashnode *bp = ht->table; + + for (i = 0; i < sz; i++, bp++) { + if (*bp) + free((char *) *bp); + } + if (sz > 0) + free((char *) ht->table); +} + +static void +#ifdef __STDC__ +hash_insert(char *key, void *data, hashtable *ht) +#else +hash_insert(key, data, ht) +char *key; +void *data; +hashtable *ht; +#endif +{ + hashnode nn, *bp = hash_bucket(key, ht); + + nn = *bp; + if (!nn) { + *bp = nn = (hashnode) malloc(sizeof(_hashnode)); + nn->key = key; + nn->data = data; + + if (ht->used >= ht->limit) + hash_rehash(ht); + ht->used++; + } else + nn->data = data; +} + +static hashnode +#ifdef __STDC__ +hash_lookup(char *key, hashtable *ht) +#else +hash_lookup(key, ht) +char *key; +hashtable *ht; +#endif +{ + hashnode *np = hash_bucket(key, ht); + return *np; +} + +static void +#ifdef __STDC__ +hash_delete(char *name, hashtable *ht) +#else +hash_delete(name, ht) +char *name; +hashtable *ht; +#endif +{ + hashnode *hp; + + hp = hash_bucket(name, ht); + if (*hp) { + free((char *) *hp); + *hp = 0; + } +} + +/* + * The builtin property table. + */ +static hashtable proptbl; + +/************************************************************************** + * + * Utility types and functions. + * + **************************************************************************/ + +/* + * Function type for parsing lines of a BDF font. + */ +typedef int (*_bdf_line_func_t)( +#ifdef __STDC__ + char *line, + unsigned long linelen, + unsigned long lineno, + void *call_data, + void *client_data +#endif +); + +/* + * List structure for splitting lines into fields. + */ +typedef struct { + char **field; + unsigned long size; + unsigned long used; + char *bfield; + unsigned long bsize; + unsigned long bused; +} _bdf_list_t; + +/* + * Structure used while loading BDF fonts. + */ +typedef struct { + unsigned long flags; + unsigned long cnt; + unsigned long row; + unsigned long bpr; + short minlb; + short maxlb; + short maxrb; + short maxas; + short maxds; + short rbearing; + char *glyph_name; + long glyph_enc; + bdf_font_t *font; + bdf_options_t *opts; + void *client_data; + bdf_callback_t callback; + bdf_callback_struct_t cb; + unsigned long have[2048]; + _bdf_list_t list; +} _bdf_parse_t; + +#define setsbit(m, cc) (m[(cc) >> 3] |= (1 << ((cc) & 7))) +#define sbitset(m, cc) (m[(cc) >> 3] & (1 << ((cc) & 7))) + +/* + * An empty string for empty fields. + */ +static char empty[1] = { 0 }; + +/* + * Assume the line is NULL terminated and that the `list' parameter was + * initialized the first time it was used. + */ +static void +#ifdef __STDC__ +_bdf_split(char *separators, char *line, unsigned long linelen, + _bdf_list_t *list) +#else +_bdf_split(separators, line, linelen, list) +char *separators, *line; +unsigned long linelen; +_bdf_list_t *list; +#endif +{ + int mult, final_empty; + char *sp, *ep, *end; + unsigned char seps[32]; + + /* + * Initialize the list. + */ + list->used = list->bused = 0; + + /* + * If the line is empty, then simply return. + */ + if (linelen == 0 || line[0] == 0) + return; + + /* + * If the `separators' parameter is NULL or empty, split the list into + * individual bytes. + */ + if (separators == 0 || *separators == 0) { + if (linelen > list->bsize) { + if (list->bsize) + list->bfield = (char *) malloc(linelen); + else + list->bfield = (char *) realloc(list->bfield, linelen); + list->bsize = linelen; + } + list->bused = linelen; + (void) memcpy(list->bfield, line, linelen); + return; + } + + /* + * Prepare the separator bitmap. + */ + (void) memset((char *) seps, 0, 32); + + /* + * If the very last character of the separator string is a plus, then set + * the `mult' flag to indicate that multiple separators should be + * collapsed into one. + */ + for (mult = 0, sp = separators; sp && *sp; sp++) { + if (*sp == '+' && *(sp + 1) == 0) + mult = 1; + else + setsbit(seps, *sp); + } + + /* + * Break the line up into fields. + */ + for (final_empty = 0, sp = ep = line, end = sp + linelen; + sp < end && *sp;) { + /* + * Collect everything that is not a separator. + */ + for (; *ep && !sbitset(seps, *ep); ep++) ; + + /* + * Resize the list if necessary. + */ + if (list->used == list->size) { + if (list->size == 0) + list->field = (char **) malloc(sizeof(char *) * 5); + else + list->field = (char **) + realloc((char *) list->field, + sizeof(char *) * (list->size + 5)); + + list->size += 5; + } + + /* + * Assign the field appropriately. + */ + list->field[list->used++] = (ep > sp) ? sp : empty; + + sp = ep; + if (mult) { + /* + * If multiple separators should be collapsed, do it now by + * setting all the separator characters to 0. + */ + for (; *ep && sbitset(seps, *ep); ep++) + *ep = 0; + } else if (*ep != 0) + /* + * Don't collapse multiple separators by making them 0, so just + * make the one encountered 0. + */ + *ep++ = 0; + final_empty = (ep > sp && *ep == 0); + sp = ep; + } + + /* + * Finally, NULL terminate the list. + */ + if (list->used + final_empty + 1 >= list->size) { + if (list->used == list->size) { + if (list->size == 0) + list->field = (char **) malloc(sizeof(char *) * 5); + else + list->field = (char **) + realloc((char *) list->field, + sizeof(char *) * (list->size + 5)); + list->size += 5; + } + } + if (final_empty) + list->field[list->used++] = empty; + + if (list->used == list->size) { + if (list->size == 0) + list->field = (char **) malloc(sizeof(char *) * 5); + else + list->field = (char **) + realloc((char *) list->field, + sizeof(char *) * (list->size + 5)); + list->size += 5; + } + list->field[list->used] = 0; +} + +static void +#ifdef __STDC__ +_bdf_shift(unsigned long n, _bdf_list_t *list) +#else +_bdf_shift(n, list) +unsigned long n; +_bdf_list_t *list; +#endif +{ + unsigned long i, u; + + if (list == 0 || list->used == 0 || n == 0) + return; + + if (n >= list->used) { + list->used = 0; + return; + } + for (u = n, i = 0; u < list->used; i++, u++) + list->field[i] = list->field[u]; + list->used -= n; +} + +static char * +#ifdef __STDC__ +_bdf_join(int c, unsigned long *len, _bdf_list_t *list) +#else +_bdf_join(c, len, list) +int c; +unsigned long *len; +_bdf_list_t *list; +#endif +{ + unsigned long i, j; + char *fp, *dp; + + if (list == 0 || list->used == 0) + return 0; + + *len = 0; + + dp = list->field[0]; + for (i = j = 0; i < list->used; i++) { + fp = list->field[i]; + while (*fp) + dp[j++] = *fp++; + if (i + 1 < list->used) + dp[j++] = c; + } + dp[j] = 0; + + *len = j; + return dp; +} + +/* + * High speed file reader that passes each line to a callback. + */ +static int +#ifdef __STDC__ +_bdf_readlines(int fd, _bdf_line_func_t callback, void *client_data, + unsigned long *lno) +#else +_bdf_readlines(fd, callback, client_data, lno) +int fd; +_bdf_line_func_t callback; +void *client_data; +unsigned long *lno; +#endif +{ + _bdf_line_func_t cb; + unsigned long lineno; + int n, res, done, refill, bytes, hold; + char *ls, *le, *pp, *pe, *hp; + char buf[65536]; + + if (callback == 0) + return -1; + + cb = callback; + lineno = 1; + buf[0] = 0; + res = done = 0; + pp = ls = le = buf; + bytes = 65536; + while (!done && (n = read(fd, pp, bytes)) > 0) { + /* + * Determine the new end of the buffer pages. + */ + pe = pp + n; + + for (refill = 0; done == 0 && refill == 0;) { + while (le < pe && *le != '\n' && *le != '\r') + le++; + + if (le == pe) { + /* + * Hit the end of the last page in the buffer. Need to find + * out how many pages to shift and how many pages need to be + * read in. Adjust the line start and end pointers down to + * point to the right places in the pages. + */ + pp = buf + (((ls - buf) >> 13) << 13); + n = pp - buf; + ls -= n; + le -= n; + n = pe - pp; + (void) memcpy(buf, pp, n); + pp = buf + n; + bytes = 65536 - n; + refill = 1; + } else { + /* + * Temporarily NULL terminate the line. + */ + hp = le; + hold = *le; + *le = 0; + + if (callback && *ls != '#' && *ls != 0x1a && le > ls && + (res = (*cb)(ls, le - ls, lineno, (void *) & cb, + client_data)) != 0) + done = 1; + else { + ls = ++le; + /* + * Handle the case of DOS crlf sequences. + */ + if (le < pe && hold == '\n' && *le == '\r') + ls = ++le; + } + + /* + * Increment the line number. + */ + lineno++; + + /* + * Restore the character at the end of the line. + */ + *hp = hold; + } + } + } + *lno = lineno; + return res; +} + +unsigned char * +#ifdef __STDC__ +_bdf_strdup(unsigned char *s, unsigned long len) +#else +_bdf_strdup(s, len) +unsigned char *s; +unsigned long len; +#endif +{ + unsigned char *ns; + + if (s == 0 || len == 0) + return 0; + + ns = (unsigned char *) malloc(len); + (void) memcpy((char *) ns, (char *) s, len); + return ns; +} + +void +_bdf_memmove(char *dest, char *src, unsigned long bytes) { + long i, j; + + i = (long) bytes; + j = i & 7; + i = (i + 7) >> 3; + + /* + * Do a memmove using Ye Olde Duff's Device for efficiency. + */ + if (src < dest) { + src += bytes; + dest += bytes; + + switch (j) { + case 0: + do { + *--dest = *--src; + case 7: + *--dest = *--src; + case 6: + *--dest = *--src; + case 5: + *--dest = *--src; + case 4: + *--dest = *--src; + case 3: + *--dest = *--src; + case 2: + *--dest = *--src; + case 1: + *--dest = *--src; + } while (--i > 0); + } + } else if (src > dest) { + switch (j) { + case 0: + do { + *dest++ = *src++; + case 7: + *dest++ = *src++; + case 6: + *dest++ = *src++; + case 5: + *dest++ = *src++; + case 4: + *dest++ = *src++; + case 3: + *dest++ = *src++; + case 2: + *dest++ = *src++; + case 1: + *dest++ = *src++; + } while (--i > 0); + } + } +} + +static unsigned char a2i[128] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +}; + +static unsigned char odigits[32] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +}; + +static unsigned char ddigits[32] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +}; + +static unsigned char hdigits[32] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03, + 0x7e, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +}; + +#define isdigok(m, d) (m[(d) >> 3] & (1 << ((d) & 7))) + +/* + * Routine to convert an ASCII string into an unsigned long integer. + */ +unsigned long +#ifdef __STDC__ +_bdf_atoul(char *s, char **end, int base) +#else +_bdf_atoul(s, end, base) +char *s, **end; +int base; +#endif +{ + unsigned long v; + unsigned char *dmap; + + if (s == 0 || *s == 0) + return 0; + + /* + * Make sure the radix is something recognizable. Default to 10. + */ + switch (base) { + case 8: + dmap = odigits; + break; + case 16: + dmap = hdigits; + break; + default: + base = 10; + dmap = ddigits; + break; + } + + /* + * Check for the special hex prefix. + */ + if (*s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X')) { + base = 16; + dmap = hdigits; + s += 2; + } + + for (v = 0; isdigok(dmap, *s); s++) + v = (v * base) + a2i[(int) *s]; + + if (end != 0) + *end = s; + + return v; +} + +/* + * Routine to convert an ASCII string into an signed long integer. + */ +long +#ifdef __STDC__ +_bdf_atol(char *s, char **end, int base) +#else +_bdf_atol(s, end, base) +char *s, **end; +int base; +#endif +{ + long v, neg; + unsigned char *dmap; + + if (s == 0 || *s == 0) + return 0; + + /* + * Make sure the radix is something recognizable. Default to 10. + */ + switch (base) { + case 8: + dmap = odigits; + break; + case 16: + dmap = hdigits; + break; + default: + base = 10; + dmap = ddigits; + break; + } + + /* + * Check for a minus sign. + */ + neg = 0; + if (*s == '-') { + s++; + neg = 1; + } + + /* + * Check for the special hex prefix. + */ + if (*s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X')) { + base = 16; + dmap = hdigits; + s += 2; + } + + for (v = 0; isdigok(dmap, *s); s++) + v = (v * base) + a2i[(int) *s]; + + if (end != 0) + *end = s; + + return (!neg) ? v : -v; +} + +/* + * Routine to convert an ASCII string into an signed short integer. + */ +short +#ifdef __STDC__ +_bdf_atos(char *s, char **end, int base) +#else +_bdf_atos(s, end, base) +char *s, **end; +int base; +#endif +{ + short v, neg; + unsigned char *dmap; + + if (s == 0 || *s == 0) + return 0; + + /* + * Make sure the radix is something recognizable. Default to 10. + */ + switch (base) { + case 8: + dmap = odigits; + break; + case 16: + dmap = hdigits; + break; + default: + base = 10; + dmap = ddigits; + break; + } + + /* + * Check for a minus. + */ + neg = 0; + if (*s == '-') { + s++; + neg = 1; + } + + /* + * Check for the special hex prefix. + */ + if (*s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X')) { + base = 16; + dmap = hdigits; + s += 2; + } + + for (v = 0; isdigok(dmap, *s); s++) + v = (v * base) + a2i[(int) *s]; + + if (end != 0) + *end = s; + + return (!neg) ? v : -v; +} + +/* + * Routine to compare two glyphs by encoding so they can be sorted. + */ +static int +#ifdef __STDC__ +by_encoding(const void *a, const void *b) +#else +by_encoding(a, b) +char *a, *b; +#endif +{ + bdf_glyph_t *c1, *c2; + + c1 = (bdf_glyph_t *) a; + c2 = (bdf_glyph_t *) b; + if (c1->encoding < c2->encoding) + return -1; + else if (c1->encoding > c2->encoding) + return 1; + return 0; +} + +/************************************************************************** + * + * BDF font file parsing flags and functions. + * + **************************************************************************/ + +/* + * Parse flags. + */ +#define _BDF_START 0x0001 +#define _BDF_FONT_NAME 0x0002 +#define _BDF_SIZE 0x0004 +#define _BDF_FONT_BBX 0x0008 +#define _BDF_PROPS 0x0010 +#define _BDF_GLYPHS 0x0020 +#define _BDF_GLYPH 0x0040 +#define _BDF_ENCODING 0x0080 +#define _BDF_SWIDTH 0x0100 +#define _BDF_DWIDTH 0x0200 +#define _BDF_BBX 0x0400 +#define _BDF_BITMAP 0x0800 + +#define _BDF_SWIDTH_ADJ 0x1000 + +#define _BDF_GLYPH_BITS (_BDF_GLYPH|_BDF_ENCODING|_BDF_SWIDTH|\ + _BDF_DWIDTH|_BDF_BBX|_BDF_BITMAP) + +#define _BDF_GLYPH_WIDTH_CHECK 0x40000000 +#define _BDF_GLYPH_HEIGHT_CHECK 0x80000000 + +/* + * Auto correction messages. + */ +#define ACMSG1 "FONT_ASCENT property missing. Added \"FONT_ASCENT %hd\"." +#define ACMSG2 "FONT_DESCENT property missing. Added \"FONT_DESCENT %hd\"." +#define ACMSG3 "Font width != actual width. Old: %hd New: %hd." +#define ACMSG4 "Font left bearing != actual left bearing. Old: %hd New: %hd." +#define ACMSG5 "Font ascent != actual ascent. Old: %hd New: %hd." +#define ACMSG6 "Font descent != actual descent. Old: %hd New: %hd." +#define ACMSG7 "Font height != actual height. Old: %hd New: %hd." +#define ACMSG8 "Glyph scalable width (SWIDTH) adjustments made." +#define ACMSG9 "SWIDTH field missing at line %ld. Set automatically." +#define ACMSG10 "DWIDTH field missing at line %ld. Set to glyph width." +#define ACMSG11 "SIZE bits per pixel field adjusted to %hd." +#define ACMSG12 "Duplicate encoding %ld (%s) changed to unencoded." +#define ACMSG13 "Glyph %ld extra rows removed." +#define ACMSG14 "Glyph %ld extra columns removed." +#define ACMSG15 "Incorrect glyph count: %ld indicated but %ld found." + +/* + * Error messages. + */ +#define ERRMSG1 "[line %ld] Missing \"%s\" line." +#define ERRMSG2 "[line %ld] Font header corrupted or missing fields." +#define ERRMSG3 "[line %ld] Font glyphs corrupted or missing fields." + +void +#ifdef __STDC__ +_bdf_add_acmsg(bdf_font_t *font, char *msg, unsigned long len) +#else +_bdf_add_acmsg(font, msg, len) +bdf_font_t *font; +char *msg; +unsigned long len; +#endif +{ + char *cp; + + if (font->acmsgs_len == 0) + font->acmsgs = (char *) malloc(len + 1); + else + font->acmsgs = (char *) realloc(font->acmsgs, + font->acmsgs_len + len + 1); + + cp = font->acmsgs + font->acmsgs_len; + (void) memcpy(cp, msg, len); + cp += len; + *cp++ = '\n'; + font->acmsgs_len += len + 1; +} + +void +#ifdef __STDC__ +_bdf_add_comment(bdf_font_t *font, char *comment, unsigned long len) +#else +_bdf_add_comment(font, comment, len) +bdf_font_t *font; +char *comment; +unsigned long len; +#endif +{ + char *cp; + + if (font->comments_len == 0) + font->comments = (char *) malloc(len + 1); + else + font->comments = (char *) realloc(font->comments, + font->comments_len + len + 1); + + cp = font->comments + font->comments_len; + (void) memcpy(cp, comment, len); + cp += len; + *cp++ = '\n'; + font->comments_len += len + 1; +} + +/* + * Set the spacing from the font name if it exists, or set it to the default + * specified in the options. + */ +static void +#ifdef __STDC__ +_bdf_set_default_spacing(bdf_font_t *font, bdf_options_t *opts) +#else +_bdf_set_default_spacing(font, opts) +bdf_font_t *font; +bdf_options_t *opts; +#endif +{ + unsigned long len; + char name[128]; + _bdf_list_t list; + + if (font == 0 || font->name == 0 || font->name[0] == 0) + return; + + font->spacing = opts->font_spacing; + + len = (unsigned long)(strlen(font->name) + 1); + (void) memcpy(name, font->name, len); + list.size = list.used = 0; + _bdf_split("-", name, len, &list); + if (list.used == 15) { + switch (list.field[11][0]) { + case 'C': + case 'c': + font->spacing = BDF_CHARCELL; + break; + case 'M': + case 'm': + font->spacing = BDF_MONOWIDTH; + break; + case 'P': + case 'p': + font->spacing = BDF_PROPORTIONAL; + break; + } + } + if (list.size > 0) + free((char *) list.field); +} + +/* + * Determine if the property is an atom or not. If it is, then clean it up so + * the double quotes are removed if they exist. + */ +static int +#ifdef __STDC__ +_bdf_is_atom(char *line, unsigned long linelen, char **name, char **value) +#else +_bdf_is_atom(line, linelen, name, value) +char *line; +unsigned long linelen; +char **name, **value; +#endif +{ + int hold; + char *sp, *ep; + bdf_property_t *p; + + *name = sp = ep = line; + while (*ep && *ep != ' ' && *ep != '\t') + ep++; + + hold = -1; + if (*ep) { + hold = *ep; + *ep = 0; + } + + p = bdf_get_property(sp); + + /* + * Restore the character that was saved before any return can happen. + */ + if (hold != -1) + *ep = hold; + + /* + * If the propert exists and is not an atom, just return here. + */ + if (p && p->format != BDF_ATOM) + return 0; + + /* + * The property is an atom. Trim all leading and trailing whitespace and + * double quotes for the atom value. + */ + sp = ep; + ep = line + linelen; + + /* + * Trim the leading whitespace if it exists. + */ + *sp++ = 0; + while (*sp && (*sp == ' ' || *sp == '\t')) + sp++; + + /* + * Trim the leading double quote if it exists. + */ + if (*sp == '"') + sp++; + *value = sp; + + /* + * Trim the trailing whitespace if it exists. + */ + while (ep > sp && (*(ep - 1) == ' ' || *(ep - 1) == '\t')) + *--ep = 0; + + /* + * Trim the trailing double quote if it exists. + */ + if (ep > sp && *(ep - 1) == '"') + *--ep = 0; + + return 1; +} + +static void +#ifdef __STDC__ +_bdf_add_property(bdf_font_t *font, char *name, char *value) +#else +_bdf_add_property(font, name, value) +bdf_font_t *font; +char *name, *value; +#endif +{ + unsigned long propid; + hashnode hn; + int len; + bdf_property_t *prop, *fp; + + /* + * First, check to see if the property already exists in the font. + */ + if ((hn = hash_lookup(name, (hashtable *) font->internal)) != 0) { + /* + * The property already exists in the font, so simply replace + * the value of the property with the current value. + */ + fp = font->props + (unsigned long) hn->data; + + switch (fp->format) { + case BDF_ATOM: + /* + * Delete the current atom if it exists. + */ + if (fp->value.atom != 0) + free(fp->value.atom); + + if (value == 0) + len = 1; + else + len = strlen(value) + 1; + if (len > 1) { + fp->value.atom = (char *) malloc(len); + (void) memcpy(fp->value.atom, value, len); + } else + fp->value.atom = 0; + break; + case BDF_INTEGER: + fp->value.int32 = _bdf_atol(value, 0, 10); + break; + case BDF_CARDINAL: + fp->value.card32 = _bdf_atoul(value, 0, 10); + break; + } + return; + } + + /* + * See if this property type exists yet or not. If not, create it. + */ + hn = hash_lookup(name, &proptbl); + if (hn == 0) { + bdf_create_property(name, BDF_ATOM); + hn = hash_lookup(name, &proptbl); + } + + /* + * Allocate another property if this is overflow. + */ + if (font->props_used == font->props_size) { + if (font->props_size == 0) + font->props = (bdf_property_t *) malloc(sizeof(bdf_property_t)); + else + font->props = (bdf_property_t *) + realloc((char *) font->props, sizeof(bdf_property_t) * + (font->props_size + 1)); + fp = font->props + font->props_size; + (void) memset((char *) fp, 0, sizeof(bdf_property_t)); + font->props_size++; + } + + propid = (unsigned long) hn->data; + if (propid >= _num_bdf_properties) + prop = user_props + (propid - _num_bdf_properties); + else + prop = _bdf_properties + propid; + + fp = font->props + font->props_used; + + fp->name = prop->name; + fp->format = prop->format; + fp->builtin = prop->builtin; + + switch (prop->format) { + case BDF_ATOM: + if (value == 0) + len = 1; + else + len = strlen(value) + 1; + if (len > 1) { + fp->value.atom = (char *) malloc(len); + (void) memcpy(fp->value.atom, value, len); + } else + fp->value.atom = 0; + break; + case BDF_INTEGER: + fp->value.int32 = _bdf_atol(value, 0, 10); + break; + case BDF_CARDINAL: + fp->value.card32 = _bdf_atoul(value, 0, 10); + break; + } + + /* + * If the property happens to be a comment, then it doesn't need + * to be added to the internal hash table. + */ + if (memcmp(name, "COMMENT", 7) != 0) + /* + * Add the property to the font property table. + */ + hash_insert(fp->name, (void *) font->props_used, + (hashtable *) font->internal); + + font->props_used++; + + /* + * Some special cases need to be handled here. The DEFAULT_CHAR property + * needs to be located if it exists in the property list, the FONT_ASCENT + * and FONT_DESCENT need to be assigned if they are present, and the + * SPACING property should override the default spacing. + */ + if (memcmp(name, "DEFAULT_CHAR", 12) == 0) + font->default_glyph = fp->value.int32; + else if (memcmp(name, "FONT_ASCENT", 11) == 0) + font->font_ascent = fp->value.int32; + else if (memcmp(name, "FONT_DESCENT", 12) == 0) + font->font_descent = fp->value.int32; + else if (memcmp(name, "SPACING", 7) == 0) { + if (fp->value.atom[0] == 'p' || fp->value.atom[0] == 'P') + font->spacing = BDF_PROPORTIONAL; + else if (fp->value.atom[0] == 'm' || fp->value.atom[0] == 'M') + font->spacing = BDF_MONOWIDTH; + else if (fp->value.atom[0] == 'c' || fp->value.atom[0] == 'C') + font->spacing = BDF_CHARCELL; + } +} + +/* + * Actually parse the glyph info and bitmaps. + */ +static int +#ifdef __STDC__ +_bdf_parse_glyphs(char *line, unsigned long linelen, unsigned long lineno, + void *call_data, void *client_data) +#else +_bdf_parse_glyphs(line, linelen, lineno, call_data, client_data) +char *line; +unsigned long linelen, lineno; +void *call_data, *client_data; +#endif +{ + int c; + char *s; + unsigned char *bp; + unsigned long i, slen, nibbles; + double ps, rx, dw, sw; + _bdf_line_func_t *next; + _bdf_parse_t *p; + bdf_glyph_t *glyph; + bdf_font_t *font; + char nbuf[128]; + + next = (_bdf_line_func_t *) call_data; + p = (_bdf_parse_t *) client_data; + + font = p->font; + + /* + * Check for a comment. + */ + if (memcmp(line, "COMMENT", 7) == 0) { + linelen -= 7; + s = line + 7; + if (*s != 0) { + s++; + linelen--; + } + _bdf_add_comment(p->font, s, linelen); + return 0; + } + + /* + * The very first thing expected is the number of glyphs. + */ + if (!(p->flags & _BDF_GLYPHS)) { + if (memcmp(line, "CHARS", 5) != 0) { + sprintf(nbuf, ERRMSG1, lineno, "CHARS"); + _bdf_add_acmsg(p->font, nbuf, strlen(nbuf)); + return BDF_MISSING_CHARS; + } + _bdf_split(" +", line, linelen, &p->list); + p->cnt = font->glyphs_size = _bdf_atoul(p->list.field[1], 0, 10); + + /* + * Make sure the number of glyphs is non-zero. + */ + if (p->cnt == 0) + font->glyphs_size = 64; + + font->glyphs = (bdf_glyph_t *) malloc(sizeof(bdf_glyph_t) * + font->glyphs_size); + + /* + * Set up the callback to indicate the glyph loading is about to + * begin. + */ + if (p->callback != 0) { + p->cb.reason = BDF_LOAD_START; + p->cb.total = p->cnt; + p->cb.current = 0; + (*p->callback)(&p->cb, p->client_data); + } + p->flags |= _BDF_GLYPHS; + return 0; + } + + /* + * Check for the ENDFONT field. + */ + if (memcmp(line, "ENDFONT", 7) == 0) { + /* + * Sort the glyphs by encoding. + */ + qsort((char *) font->glyphs, font->glyphs_used, sizeof(bdf_glyph_t), + by_encoding); + + p->flags &= ~_BDF_START; + return 0; + } + + /* + * Check for the ENDCHAR field. + */ + if (memcmp(line, "ENDCHAR", 7) == 0) { + /* + * Set up and call the callback if it was passed. + */ + if (p->callback != 0) { + p->cb.reason = BDF_LOADING; + p->cb.total = font->glyphs_size; + p->cb.current = font->glyphs_used; + (*p->callback)(&p->cb, p->client_data); + } + p->glyph_enc = 0; + p->flags &= ~_BDF_GLYPH_BITS; + return 0; + } + + /* + * Check to see if a glyph is being scanned but should be ignored + * because it is an unencoded glyph. + */ + if ((p->flags & _BDF_GLYPH) && + p->glyph_enc == -1 && p->opts->keep_unencoded == 0) + return 0; + + /* + * Check for the STARTCHAR field. + */ + if (memcmp(line, "STARTCHAR", 9) == 0) { + /* + * Set the character name in the parse info first until the + * encoding can be checked for an unencoded character. + */ + if (p->glyph_name != 0) + free(p->glyph_name); + _bdf_split(" +", line, linelen, &p->list); + _bdf_shift(1, &p->list); + s = _bdf_join(' ', &slen, &p->list); + p->glyph_name = (char *) malloc(slen + 1); + (void) memcpy(p->glyph_name, s, slen + 1); + p->flags |= _BDF_GLYPH; + return 0; + } + + /* + * Check for the ENCODING field. + */ + if (memcmp(line, "ENCODING", 8) == 0) { + if (!(p->flags & _BDF_GLYPH)) { + /* + * Missing STARTCHAR field. + */ + sprintf(nbuf, ERRMSG1, lineno, "STARTCHAR"); + _bdf_add_acmsg(font, nbuf, strlen(nbuf)); + return BDF_MISSING_STARTCHAR; + } + _bdf_split(" +", line, linelen, &p->list); + p->glyph_enc = _bdf_atol(p->list.field[1], 0, 10); + + /* + * Check to see if this encoding has already been encountered. If it + * has then change it to unencoded so it gets added if indicated. + */ + if (p->glyph_enc >= 0) { + if (_bdf_glyph_modified(p->have, p->glyph_enc)) { + /* + * Add a message saying a glyph has been moved to the + * unencoded area. + */ + sprintf(nbuf, ACMSG12, p->glyph_enc, p->glyph_name); + _bdf_add_acmsg(font, nbuf, strlen(nbuf)); + p->glyph_enc = -1; + font->modified = 1; + } else + _bdf_set_glyph_modified(p->have, p->glyph_enc); + } + + if (p->glyph_enc >= 0) { + /* + * Make sure there are enough glyphs allocated in case the + * number of characters happen to be wrong. + */ + if (font->glyphs_used == font->glyphs_size) { + font->glyphs = (bdf_glyph_t *) + realloc((char *) font->glyphs, + sizeof(bdf_glyph_t) * (font->glyphs_size + 64)); + (void) memset((char *)(font->glyphs + font->glyphs_size), + 0, sizeof(bdf_glyph_t) << 6); + font->glyphs_size += 64; + } + + glyph = font->glyphs + font->glyphs_used++; + glyph->name = p->glyph_name; + glyph->encoding = p->glyph_enc; + + /* + * Reset the initial glyph info. + */ + p->glyph_name = 0; + } else { + /* + * Unencoded glyph. Check to see if it should be added or not. + */ + if (p->opts->keep_unencoded != 0) { + /* + * Allocate the next unencoded glyph. + */ + if (font->unencoded_used == font->unencoded_size) { + if (font->unencoded_size == 0) + font->unencoded = (bdf_glyph_t *) + malloc(sizeof(bdf_glyph_t) << 2); + else + font->unencoded = (bdf_glyph_t *) + realloc((char *) font->unencoded, + sizeof(bdf_glyph_t) * + (font->unencoded_size + 4)); + font->unencoded_size += 4; + } + + glyph = font->unencoded + font->unencoded_used; + glyph->name = p->glyph_name; + glyph->encoding = font->unencoded_used++; + } else + /* + * Free up the glyph name if the unencoded shouldn't be + * kept. + */ + free(p->glyph_name); + + p->glyph_name = 0; + } + + /* + * Clear the flags that might be added when width and height are + * checked for consistency. + */ + p->flags &= ~(_BDF_GLYPH_WIDTH_CHECK | _BDF_GLYPH_HEIGHT_CHECK); + + p->flags |= _BDF_ENCODING; + return 0; + } + + /* + * Point at the glyph being constructed. + */ + if (p->glyph_enc == -1) + glyph = font->unencoded + (font->unencoded_used - 1); + else + glyph = font->glyphs + (font->glyphs_used - 1); + + /* + * Check to see if a bitmap is being constructed. + */ + if (p->flags & _BDF_BITMAP) { + /* + * If there are more rows than are specified in the glyph metrics, + * ignore the remaining lines. + */ + if (p->row >= glyph->bbx.height) { + if (!(p->flags & _BDF_GLYPH_HEIGHT_CHECK)) { + sprintf(nbuf, ACMSG13, glyph->encoding); + _bdf_add_acmsg(font, nbuf, strlen(nbuf)); + p->flags |= _BDF_GLYPH_HEIGHT_CHECK; + font->modified = 1; + } + return 0; + } + + /* + * Only collect the number of nibbles indicated by the glyph metrics. + * If there are more columns, they are simply ignored. + */ + nibbles = p->bpr << 1; + bp = glyph->bitmap + (p->row * p->bpr); + for (i = 0, *bp = 0; i < nibbles; i++) { + c = line[i]; + *bp = (*bp << 4) + a2i[c]; + if (i + 1 < nibbles && (i & 1)) + *++bp = 0; + } + + /* + * If any line has extra columns, indicate they have been removed. + */ + if ((line[nibbles] == '0' || a2i[(int) line[nibbles]] != 0) && + !(p->flags & _BDF_GLYPH_WIDTH_CHECK)) { + sprintf(nbuf, ACMSG14, glyph->encoding); + _bdf_add_acmsg(font, nbuf, strlen(nbuf)); + p->flags |= _BDF_GLYPH_WIDTH_CHECK; + font->modified = 1; + } + + p->row++; + return 0; + } + + /* + * Expect the SWIDTH (scalable width) field next. + */ + if (memcmp(line, "SWIDTH", 6) == 0) { + if (!(p->flags & _BDF_ENCODING)) { + /* + * Missing ENCODING field. + */ + sprintf(nbuf, ERRMSG1, lineno, "ENCODING"); + _bdf_add_acmsg(font, nbuf, strlen(nbuf)); + return BDF_MISSING_ENCODING; + } + _bdf_split(" +", line, linelen, &p->list); + glyph->swidth = _bdf_atoul(p->list.field[1], 0, 10); + p->flags |= _BDF_SWIDTH; + return 0; + } + + /* + * Expect the DWIDTH (scalable width) field next. + */ + if (memcmp(line, "DWIDTH", 6) == 0) { + _bdf_split(" +", line, linelen, &p->list); + glyph->dwidth = _bdf_atoul(p->list.field[1], 0, 10); + + if (!(p->flags & _BDF_SWIDTH)) { + /* + * Missing SWIDTH field. Add an auto correction message and set + * the scalable width from the device width. + */ + sprintf(nbuf, ACMSG9, lineno); + _bdf_add_acmsg(font, nbuf, strlen(nbuf)); + ps = (double) font->point_size; + rx = (double) font->resolution_x; + dw = (double) glyph->dwidth; + glyph->swidth = (unsigned short)((dw * 72000.0) / (ps * rx)); + } + + p->flags |= _BDF_DWIDTH; + return 0; + } + + /* + * Expect the BBX field next. + */ + if (memcmp(line, "BBX", 3) == 0) { + _bdf_split(" +", line, linelen, &p->list); + glyph->bbx.width = _bdf_atos(p->list.field[1], 0, 10); + glyph->bbx.height = _bdf_atos(p->list.field[2], 0, 10); + glyph->bbx.x_offset = _bdf_atos(p->list.field[3], 0, 10); + glyph->bbx.y_offset = _bdf_atos(p->list.field[4], 0, 10); + + /* + * Generate the ascent and descent of the character. + */ + glyph->bbx.ascent = glyph->bbx.height + glyph->bbx.y_offset; + glyph->bbx.descent = -glyph->bbx.y_offset; + + /* + * Determine the overall font bounding box as the characters are + * loaded so corrections can be done later if indicated. + */ + p->maxas = MAX(glyph->bbx.ascent, p->maxas); + p->maxds = MAX(glyph->bbx.descent, p->maxds); + p->rbearing = glyph->bbx.width + glyph->bbx.x_offset; + p->maxrb = MAX(p->rbearing, p->maxrb); + p->minlb = MIN(glyph->bbx.x_offset, p->minlb); + p->maxlb = MAX(glyph->bbx.x_offset, p->maxlb); + + if (!(p->flags & _BDF_DWIDTH)) { + /* + * Missing DWIDTH field. Add an auto correction message and set + * the device width to the glyph width. + */ + sprintf(nbuf, ACMSG10, lineno); + _bdf_add_acmsg(font, nbuf, strlen(nbuf)); + glyph->dwidth = glyph->bbx.width; + } + + /* + * If the BDF_CORRECT_METRICS flag is set, then adjust the SWIDTH + * value if necessary. + */ + if (p->opts->correct_metrics != 0) { + /* + * Determine the point size of the glyph. + */ + ps = (double) font->point_size; + rx = (double) font->resolution_x; + dw = (double) glyph->dwidth; + sw = (unsigned short)((dw * 72000.0) / (ps * rx)); + + if (sw != glyph->swidth) { + glyph->swidth = (unsigned short) sw; + if (p->glyph_enc == -1) + _bdf_set_glyph_modified(font->umod, + font->unencoded_used - 1); + else + _bdf_set_glyph_modified(font->nmod, glyph->encoding); + p->flags |= _BDF_SWIDTH_ADJ; + font->modified = 1; + } + } + p->flags |= _BDF_BBX; + return 0; + } + + /* + * And finally, gather up the bitmap. + */ + if (memcmp(line, "BITMAP", 6) == 0) { + if (!(p->flags & _BDF_BBX)) { + /* + * Missing BBX field. + */ + sprintf(nbuf, ERRMSG1, lineno, "BBX"); + _bdf_add_acmsg(font, nbuf, strlen(nbuf)); + return BDF_MISSING_BBX; + } + /* + * Allocate enough space for the bitmap. + */ + p->bpr = ((glyph->bbx.width * p->font->bpp) + 7) >> 3; + glyph->bytes = p->bpr * glyph->bbx.height; + glyph->bitmap = (unsigned char *) malloc(glyph->bytes); + p->row = 0; + p->flags |= _BDF_BITMAP; + return 0; + } + + return BDF_INVALID_LINE; +} + +/* + * Load the font properties. + */ +static int +#ifdef __STDC__ +_bdf_parse_properties(char *line, unsigned long linelen, unsigned long lineno, + void *call_data, void *client_data) +#else +_bdf_parse_properties(line, linelen, lineno, call_data, client_data) +char *line; +unsigned long linelen, lineno; +void *call_data, *client_data; +#endif +{ + unsigned long vlen; + _bdf_line_func_t *next; + _bdf_parse_t *p; + char *name, *value, nbuf[128]; + + next = (_bdf_line_func_t *) call_data; + p = (_bdf_parse_t *) client_data; + + /* + * Check for the end of the properties. + */ + if (memcmp(line, "ENDPROPERTIES", 13) == 0) { + /* + * If the FONT_ASCENT or FONT_DESCENT properties have not been + * encountered yet, then make sure they are added as properties and + * make sure they are set from the font bounding box info. + * + * This is *always* done regardless of the options, because X11 + * requires these two fields to compile fonts. + */ + if (bdf_get_font_property(p->font, "FONT_ASCENT") == 0) { + p->font->font_ascent = p->font->bbx.ascent; + sprintf(nbuf, "%hd", p->font->bbx.ascent); + _bdf_add_property(p->font, "FONT_ASCENT", nbuf); + sprintf(nbuf, ACMSG1, p->font->bbx.ascent); + _bdf_add_acmsg(p->font, nbuf, strlen(nbuf)); + p->font->modified = 1; + } + if (bdf_get_font_property(p->font, "FONT_DESCENT") == 0) { + p->font->font_descent = p->font->bbx.descent; + sprintf(nbuf, "%hd", p->font->bbx.descent); + _bdf_add_property(p->font, "FONT_DESCENT", nbuf); + sprintf(nbuf, ACMSG2, p->font->bbx.descent); + _bdf_add_acmsg(p->font, nbuf, strlen(nbuf)); + p->font->modified = 1; + } + p->flags &= ~_BDF_PROPS; + *next = _bdf_parse_glyphs; + return 0; + } + + /* + * Ignore the _XFREE86_GLYPH_RANGES properties. + */ + if (memcmp(line, "_XFREE86_GLYPH_RANGES", 21) == 0) + return 0; + + /* + * Handle COMMENT fields and properties in a special way to preserve + * the spacing. + */ + if (memcmp(line, "COMMENT", 7) == 0) { + name = value = line; + value += 7; + if (*value) + *value++ = 0; + _bdf_add_property(p->font, name, value); + } else if (_bdf_is_atom(line, linelen, &name, &value)) + _bdf_add_property(p->font, name, value); + else { + _bdf_split(" +", line, linelen, &p->list); + name = p->list.field[0]; + _bdf_shift(1, &p->list); + value = _bdf_join(' ', &vlen, &p->list); + _bdf_add_property(p->font, name, value); + } + + return 0; +} + +/* + * Load the font header. + */ +static int +#ifdef __STDC__ +_bdf_parse_start(char *line, unsigned long linelen, unsigned long lineno, + void *call_data, void *client_data) +#else +_bdf_parse_start(line, linelen, lineno, call_data, client_data) +char *line; +unsigned long linelen, lineno; +void *call_data, *client_data; +#endif +{ + unsigned long slen; + _bdf_line_func_t *next; + _bdf_parse_t *p; + bdf_font_t *font; + char *s, nbuf[128]; + + next = (_bdf_line_func_t *) call_data; + p = (_bdf_parse_t *) client_data; + + /* + * Check for a comment. This is done to handle those fonts that have + * comments before the STARTFONT line for some reason. + */ + if (memcmp(line, "COMMENT", 7) == 0) { + if (p->opts->keep_comments != 0 && p->font != 0) { + linelen -= 7; + s = line + 7; + if (*s != 0) { + s++; + linelen--; + } + _bdf_add_comment(p->font, s, linelen); + } + return 0; + } + + if (!(p->flags & _BDF_START)) { + if (memcmp(line, "STARTFONT", 9) != 0) + /* + * No STARTFONT field is a good indication of a problem. + */ + return BDF_MISSING_START; + p->flags = _BDF_START; + p->font = font = (bdf_font_t *) calloc(1, sizeof(bdf_font_t)); + p->font->internal = (void *) malloc(sizeof(hashtable)); + hash_init((hashtable *) p->font->internal); + p->font->spacing = p->opts->font_spacing; + p->font->default_glyph = -1; + return 0; + } + + /* + * Check for the start of the properties. + */ + if (memcmp(line, "STARTPROPERTIES", 15) == 0) { + _bdf_split(" +", line, linelen, &p->list); + p->cnt = p->font->props_size = _bdf_atoul(p->list.field[1], 0, 10); + p->font->props = (bdf_property_t *) + malloc(sizeof(bdf_property_t) * p->cnt); + p->flags |= _BDF_PROPS; + *next = _bdf_parse_properties; + return 0; + } + + /* + * Check for the FONTBOUNDINGBOX field. + */ + if (memcmp(line, "FONTBOUNDINGBOX", 15) == 0) { + if (!(p->flags & _BDF_SIZE)) { + /* + * Missing the SIZE field. + */ + sprintf(nbuf, ERRMSG1, lineno, "SIZE"); + _bdf_add_acmsg(p->font, nbuf, strlen(nbuf)); + return BDF_MISSING_SIZE; + } + _bdf_split(" +", line, linelen, &p->list); + p->font->bbx.width = _bdf_atos(p->list.field[1], 0, 10); + p->font->bbx.height = _bdf_atos(p->list.field[2], 0, 10); + p->font->bbx.x_offset = _bdf_atos(p->list.field[3], 0, 10); + p->font->bbx.y_offset = _bdf_atos(p->list.field[4], 0, 10); + p->font->bbx.ascent = p->font->bbx.height + p->font->bbx.y_offset; + p->font->bbx.descent = -p->font->bbx.y_offset; + p->flags |= _BDF_FONT_BBX; + return 0; + } + + /* + * The next thing to check for is the FONT field. + */ + if (memcmp(line, "FONT", 4) == 0) { + _bdf_split(" +", line, linelen, &p->list); + _bdf_shift(1, &p->list); + s = _bdf_join(' ', &slen, &p->list); + p->font->name = (char *) malloc(slen + 1); + (void) memcpy(p->font->name, s, slen + 1); + /* + * If the font name is an XLFD name, set the spacing to the one in the + * font name. If there is no spacing fall back on the default. + */ + _bdf_set_default_spacing(p->font, p->opts); + p->flags |= _BDF_FONT_NAME; + return 0; + } + + /* + * Check for the SIZE field. + */ + if (memcmp(line, "SIZE", 4) == 0) { + if (!(p->flags & _BDF_FONT_NAME)) { + /* + * Missing the FONT field. + */ + sprintf(nbuf, ERRMSG1, lineno, "FONT"); + _bdf_add_acmsg(p->font, nbuf, strlen(nbuf)); + return BDF_MISSING_FONTNAME; + } + _bdf_split(" +", line, linelen, &p->list); + p->font->point_size = _bdf_atoul(p->list.field[1], 0, 10); + p->font->resolution_x = _bdf_atoul(p->list.field[2], 0, 10); + p->font->resolution_y = _bdf_atoul(p->list.field[3], 0, 10); + + /* + * Check for the bits per pixel field. + */ + if (p->list.used == 5) { + p->font->bpp = _bdf_atos(p->list.field[4], 0, 10); + if (p->font->bpp > 1 && (p->font->bpp & 1)) { + /* + * Move up to the next bits per pixel value if an odd number + * is encountered. + */ + p->font->bpp++; + if (p->font->bpp <= 4) { + sprintf(nbuf, ACMSG11, p->font->bpp); + _bdf_add_acmsg(p->font, nbuf, strlen(nbuf)); + } + } + if (p->font->bpp > 4) { + sprintf(nbuf, ACMSG11, p->font->bpp); + _bdf_add_acmsg(p->font, nbuf, strlen(nbuf)); + p->font->bpp = 4; + } + } else + p->font->bpp = 1; + + p->flags |= _BDF_SIZE; + return 0; + } + + return BDF_INVALID_LINE; +} + +/************************************************************************** + * + * API. + * + **************************************************************************/ + +void +#ifdef __STDC__ +bdf_setup(void) +#else +bdf_setup() +#endif +{ + unsigned long i; + bdf_property_t *prop; + + hash_init(&proptbl); + for (i = 0, prop = _bdf_properties; i < _num_bdf_properties; i++, prop++) + hash_insert(prop->name, (void *) i, &proptbl); +} + +void +#ifdef __STDC__ +bdf_cleanup(void) +#else +bdf_cleanup() +#endif +{ + unsigned long i; + bdf_property_t *prop; + + hash_free(&proptbl); + + /* + * Free up the user defined properties. + */ + for (prop = user_props, i = 0; i < nuser_props; i++, prop++) { + free(prop->name); + if (prop->format == BDF_ATOM && prop->value.atom != 0) + free(prop->value.atom); + } + if (nuser_props > 0) + free((char *) user_props); + + _bdf_glyph_name_cleanup(); +} + +bdf_font_t * +#ifdef __STDC__ +bdf_load_font(FILE *in, bdf_options_t *opts, bdf_callback_t callback, + void *data) +#else +bdf_load_font(in, opts, callback, data) +FILE *in; +bdf_options_t *opts; +bdf_callback_t callback; +void *data; +#endif +{ + int n; + unsigned long lineno; + char msgbuf[128]; + _bdf_parse_t p; + + (void) memset((char *) &p, 0, sizeof(_bdf_parse_t)); + p.opts = (opts != 0) ? opts : &_bdf_opts; + p.minlb = 32767; + p.callback = callback; + p.client_data = data; + n = _bdf_readlines(fileno(in), _bdf_parse_start, (void *) & p, &lineno); + + if (p.font != 0) { + /* + * If the font is not proportional, set the fonts monowidth + * field to the width of the font bounding box. + */ + if (p.font->spacing != BDF_PROPORTIONAL) + p.font->monowidth = p.font->bbx.width; + + /* + * If the number of glyphs loaded is not that of the original count, + * indicate the difference. + */ + if (p.cnt != p.font->glyphs_used + p.font->unencoded_used) { + sprintf(msgbuf, ACMSG15, p.cnt, + p.font->glyphs_used + p.font->unencoded_used); + _bdf_add_acmsg(p.font, msgbuf, strlen(msgbuf)); + p.font->modified = 1; + } + + /* + * Once the font has been loaded, adjust the overall font metrics if + * necessary. + */ + if (p.opts->correct_metrics != 0 && + (p.font->glyphs_used > 0 || p.font->unencoded_used > 0)) { + if (p.maxrb - p.minlb != p.font->bbx.width) { + sprintf(msgbuf, ACMSG3, p.font->bbx.width, p.maxrb - p.minlb); + _bdf_add_acmsg(p.font, msgbuf, strlen(msgbuf)); + p.font->bbx.width = p.maxrb - p.minlb; + p.font->modified = 1; + } + if (p.font->bbx.x_offset != p.minlb) { + sprintf(msgbuf, ACMSG4, p.font->bbx.x_offset, p.minlb); + _bdf_add_acmsg(p.font, msgbuf, strlen(msgbuf)); + p.font->bbx.x_offset = p.minlb; + p.font->modified = 1; + } + if (p.font->bbx.ascent != p.maxas) { + sprintf(msgbuf, ACMSG5, p.font->bbx.ascent, p.maxas); + _bdf_add_acmsg(p.font, msgbuf, strlen(msgbuf)); + p.font->bbx.ascent = p.maxas; + p.font->modified = 1; + } + if (p.font->bbx.descent != p.maxds) { + sprintf(msgbuf, ACMSG6, p.font->bbx.descent, p.maxds); + _bdf_add_acmsg(p.font, msgbuf, strlen(msgbuf)); + p.font->bbx.descent = p.maxds; + p.font->bbx.y_offset = -p.maxds; + p.font->modified = 1; + } + if (p.maxas + p.maxds != p.font->bbx.height) { + sprintf(msgbuf, ACMSG7, p.font->bbx.height, p.maxas + p.maxds); + _bdf_add_acmsg(p.font, msgbuf, strlen(msgbuf)); + } + p.font->bbx.height = p.maxas + p.maxds; + + if (p.flags & _BDF_SWIDTH_ADJ) + _bdf_add_acmsg(p.font, ACMSG8, strlen(ACMSG8)); + } + } + + /* + * Last, if an error happened during loading, handle the messages. + */ + if (n < 0 && callback != 0) { + /* + * An error was returned. Alert the client. + */ + p.cb.reason = BDF_ERROR; + p.cb.errlineno = lineno; + (*callback)(&p.cb, data); + } else if (p.flags & _BDF_START) { + if (p.font != 0) { + /* + * The ENDFONT field was never reached or did not exist. + */ + if (!(p.flags & _BDF_GLYPHS)) + /* + * Error happened while parsing header. + */ + sprintf(msgbuf, ERRMSG2, lineno); + else + /* + * Error happened when parsing glyphs. + */ + sprintf(msgbuf, ERRMSG3, lineno); + + _bdf_add_acmsg(p.font, msgbuf, strlen(msgbuf)); + } + + if (callback != 0) { + p.cb.reason = BDF_ERROR; + p.cb.errlineno = lineno; + (*callback)(&p.cb, data); + } + } else if (callback != 0) { + /* + * This forces the progress bar to always finish. + */ + p.cb.current = p.cb.total; + (*p.callback)(&p.cb, p.client_data); + } + + /* + * Free up the list used during the parsing. + */ + if (p.list.size > 0) + free((char *) p.list.field); + + if (p.font != 0) { + /* + * Make sure the comments are NULL terminated if they exist. + */ + if (p.font->comments_len > 0) { + p.font->comments = (char *) realloc(p.font->comments, + p.font->comments_len + 1); + p.font->comments[p.font->comments_len] = 0; + } + + /* + * Make sure the auto-correct messages are NULL terminated if they + * exist. + */ + if (p.font->acmsgs_len > 0) { + p.font->acmsgs = (char *) realloc(p.font->acmsgs, + p.font->acmsgs_len + 1); + p.font->acmsgs[p.font->acmsgs_len] = 0; + } + } + + return p.font; +} + +#ifdef HAVE_HBF +static int +#ifdef __STDC__ +_bdf_parse_hbf_header(char *line, unsigned long linelen, unsigned long lineno, + void *call_data, void *client_data) +#else +_bdf_parse_hbf_header(line, linelen, lineno, call_data, client_data) +char *line; +unsigned long linelen, lineno; +void *call_data, *client_data; +#endif +{ + unsigned long vlen; + char *name, *value; + _bdf_parse_t *p; + _bdf_line_func_t *next; + char nbuf[24]; + + next = (_bdf_line_func_t *) call_data; + p = (_bdf_parse_t *) client_data; + + /* + * Check for comments. + */ + if (memcmp(line, "COMMENT", 7) == 0) { + if (p->opts->keep_comments != 0 && p->font != 0) { + name = line; + value = name + 7; + vlen = linelen - 7; + if (*value) { + *value++ = 0; + vlen--; + } + /* + * If the properties are being parsed, add the comment as a + * property. Otherwise, simply add the comment in the normal + * fashion. + */ + if (p->flags & _BDF_PROPS) + _bdf_add_property(p->font, name, value); + else + _bdf_add_comment(p->font, value, vlen); + } + return 0; + } + + if (!(p->flags & _BDF_START)) { + if (memcmp(line, "HBF_START_FONT", 14) != 0) + return -1; + p->flags = _BDF_START; + p->font = (bdf_font_t *) calloc(1, sizeof(bdf_font_t)); + /* + * HBF fonts are always assumed to be 1 bit per pixel. + */ + p->font->bpp = 1; + p->font->internal = (void *) malloc(sizeof(hashtable)); + hash_init((hashtable *) p->font->internal); + p->font->hbf = 1; + p->font->spacing = p->opts->font_spacing; + p->font->default_glyph = -1; + return 0; + } + + /* + * Check for the HBF_END_FONT field. + */ + if (memcmp(line, "HBF_END_FONT", 12) == 0) + /* + * Need to perform some checks here to see whether some fields are + * missing or not. + */ + return 0; + + /* + * Check for HBF keywords which will be added as comments. These should + * never occur in the properties list. Assume they won't. + */ + if (memcmp(line, "HBF_", 4) == 0) { + if (p->opts->keep_comments != 0) + _bdf_add_comment(p->font, line, linelen); + return 0; + } + + if (!(p->flags & _BDF_PROPS)) { + /* + * Check for the start of the properties. + */ + if (memcmp(line, "STARTPROPERTIES", 15) == 0) { + _bdf_split(" +", line, linelen, &p->list); + p->cnt = p->font->props_size = _bdf_atoul(p->list.field[1], 0, 10); + p->font->props = (bdf_property_t *) + malloc(sizeof(bdf_property_t) * p->cnt); + p->flags |= _BDF_PROPS; + return 0; + } + + /* + * Check for the CHARS field. + */ + if (memcmp(line, "CHARS", 5) == 0) { + _bdf_split(" +", line, linelen, &p->list); + p->cnt = p->font->glyphs_size = + _bdf_atoul(p->list.field[1], 0, 10); + p->font->glyphs = (bdf_glyph_t *) + malloc(sizeof(bdf_glyph_t) * p->cnt); + return 0; + } + + /* + * Check for the FONTBOUNDINGBOX field. + */ + if (memcmp(line, "FONTBOUNDINGBOX", 15) == 0) { + if (!(p->flags & (_BDF_START | _BDF_FONT_NAME | _BDF_SIZE))) + return -1; + _bdf_split(" +", line, linelen, &p->list); + p->font->bbx.width = _bdf_atos(p->list.field[1], 0, 10); + p->font->bbx.height = _bdf_atos(p->list.field[2], 0, 10); + p->font->bbx.x_offset = _bdf_atos(p->list.field[3], 0, 10); + p->font->bbx.y_offset = _bdf_atos(p->list.field[4], 0, 10); + p->font->bbx.ascent = p->font->bbx.height + p->font->bbx.y_offset; + p->font->bbx.descent = -p->font->bbx.y_offset; + p->flags |= _BDF_FONT_BBX; + return 0; + } + + /* + * The next thing to check for is the FONT field. + */ + if (memcmp(line, "FONT", 4) == 0) { + if (!(p->flags & _BDF_START)) + return -1; + _bdf_split(" +", line, linelen, &p->list); + _bdf_shift(1, &p->list); + value = _bdf_join(' ', &vlen, &p->list); + p->font->name = (char *) malloc(vlen + 1); + (void) memcpy(p->font->name, value, vlen + 1); + /* + * If the font name is an XLFD name, set the spacing to the one in + * the font name. If there is no spacing fall back on the + * default. + */ + _bdf_set_default_spacing(p->font, p->opts); + p->flags |= _BDF_FONT_NAME; + return 0; + } + + /* + * Check for the SIZE field. + */ + if (memcmp(line, "SIZE", 4) == 0) { + if (!(p->flags & (_BDF_START | _BDF_FONT_NAME))) + return -1; + _bdf_split(" +", line, linelen, &p->list); + p->font->point_size = _bdf_atoul(p->list.field[1], 0, 10); + p->font->resolution_x = _bdf_atoul(p->list.field[2], 0, 10); + p->font->resolution_y = _bdf_atoul(p->list.field[3], 0, 10); + p->flags |= _BDF_SIZE; + return 0; + } + } else { + /* + * Check for the end of the properties. + */ + if (memcmp(line, "ENDPROPERTIES", 13) == 0) { + /* + * If the FONT_ASCENT or FONT_DESCENT properties have not been + * encountered yet, then make sure they are added as properties and + * make sure they are set from the font bounding box info. + * + * This is *always* done regardless of the options, because X11 + * requires these two fields to compile fonts. + */ + if (bdf_get_font_property(p->font, "FONT_ASCENT") == 0) { + p->font->font_ascent = p->font->bbx.ascent; + sprintf(nbuf, "%hd", p->font->bbx.ascent); + _bdf_add_property(p->font, "FONT_ASCENT", nbuf); + sprintf(nbuf, ACMSG1, p->font->bbx.ascent); + _bdf_add_acmsg(p->font, nbuf, strlen(nbuf)); + p->font->modified = 1; + } + if (bdf_get_font_property(p->font, "FONT_DESCENT") == 0) { + p->font->font_descent = p->font->bbx.descent; + sprintf(nbuf, "%hd", p->font->bbx.descent); + _bdf_add_property(p->font, "FONT_DESCENT", nbuf); + sprintf(nbuf, ACMSG2, p->font->bbx.descent); + _bdf_add_acmsg(p->font, nbuf, strlen(nbuf)); + p->font->modified = 1; + } + p->flags &= ~_BDF_PROPS; + return 0; + } + + /* + * Handle the next thing in the usual property fashion. + */ + if (_bdf_is_atom(line, linelen, &name, &value)) + _bdf_add_property(p->font, name, value); + else { + _bdf_split(" +", line, linelen, &p->list); + name = p->list.field[0]; + _bdf_shift(1, &p->list); + value = _bdf_join(' ', &vlen, &p->list); + _bdf_add_property(p->font, name, value); + } + return 0; + } + + /* + * Anything else is an error. + */ + return -1; +} + +#ifdef __STDC__ +#define CONST const +#else +#define CONST +#endif + +static void +#ifdef __STDC__ +_bdf_add_hbf_glyph(HBF *hbf, unsigned int code, void *callback_data) +#else +_bdf_add_hbf_glyph(hbf, code, callback_data) +HBF *hbf; +unsigned int code; +void *callback_data; +#endif +{ + CONST unsigned char *bmap; + unsigned long n; + bdf_glyph_t *gp; + bdf_font_t *font; + _bdf_parse_t *p; + HBF_BBOX *fbbx; + double ps, rx, dw; + char nbuf[24]; + + /* + * Attempt to get the bitmap. + */ + if ((bmap = hbfGetBitmap(hbf, code)) == 0) + /* + * Need some sort of error handling here. + */ + return; + + p = (_bdf_parse_t *) callback_data; + + fbbx = hbfFontBBox(hbf); + + font = p->font; + + /* + * Check to make sure there is enough space to hold this glyph. If not, + * allocate 10 more just in case. + */ + if (font->glyphs_used == font->glyphs_size) { + if (font->glyphs_size == 0) + font->glyphs = (bdf_glyph_t *) malloc(sizeof(bdf_glyph_t) * 16); + else + font->glyphs = (bdf_glyph_t *) + realloc((char *) font->glyphs, + sizeof(bdf_glyph_t) * (font->glyphs_used + 16)); + gp = font->glyphs + font->glyphs_size; + (void) memset((char *) gp, 0, sizeof(bdf_glyph_t) * 16); + font->glyphs_size += 16; + } + + gp = font->glyphs + font->glyphs_used++; + + /* + * Set the glyph name. + */ + sprintf(nbuf, "char%d", code); + n = (unsigned long) strlen(nbuf); + gp->name = (char *) malloc(n + 1); + (void) memcpy(gp->name, nbuf, n + 1); + + /* + * Set encoding. + */ + gp->encoding = (long) code; + + /* + * Set the device width. + */ + gp->dwidth = (unsigned short) fbbx->hbf_width; + + /* + * Set the scalable width. + */ + ps = (double) font->point_size; + rx = (double) font->resolution_x; + dw = (double) gp->dwidth; + gp->swidth = (unsigned short)((dw * 72000.0) / (ps * rx)); + + /* + * Set the glyph bounding box. + */ + gp->bbx.width = fbbx->hbf_width; + gp->bbx.height = fbbx->hbf_height; + gp->bbx.x_offset = fbbx->hbf_xDisplacement; + gp->bbx.y_offset = fbbx->hbf_yDisplacement; + gp->bbx.ascent = gp->bbx.height + gp->bbx.y_offset; + gp->bbx.descent = -gp->bbx.y_offset; + + /* + * Add the bitmap by making a copy. Assumes the font bbx is OK for + * determining the number of bytes needed for the glyph bitmap. + */ + gp->bytes = ((gp->bbx.width + 7) >> 3) * gp->bbx.height; + gp->bitmap = (unsigned char *) malloc(gp->bytes); + (void) memcpy((char *) gp->bitmap, (char *) bmap, gp->bytes); + + /* + * Call the callback if it was provided. + */ + if (p->callback != 0) { + p->cb.reason = BDF_LOADING; + p->cb.total = font->glyphs_size; + p->cb.current = font->glyphs_used; + (*p->callback)(&p->cb, p->client_data); + } +} + +bdf_font_t * +#ifdef __STDC__ +bdf_load_hbf_font(char *filename, bdf_options_t *opts, bdf_callback_t callback, + void *data) +#else +bdf_load_hbf_font(filename, opts, callback, data) +char *filename; +bdf_options_t *opts; +bdf_callback_t callback; +void *data; +#endif +{ + int n, diff; + unsigned long lineno; + FILE *in; + HBF *hbf; + bdf_property_t *pp; + char *name; + _bdf_parse_t p; + + if ((hbf = hbfOpen(filename)) == 0) + return 0; + + if ((in = fopen(hbfFileName(hbf), "r")) == 0) { + hbfClose(hbf); + return 0; + } + + /* + * Parse the HBF header for properties and other things. + */ + (void) memset((char *) &p, 0, sizeof(_bdf_parse_t)); + p.opts = (opts != 0) ? opts : &_bdf_opts; + p.minlb = 32767; + p.callback = callback; + p.client_data = data; + + n = _bdf_readlines(fileno(in), _bdf_parse_hbf_header, (void *) & p, + &lineno); + + fclose(in); + + /* + * Determine what spacing the font has so the monowidth field can be set + * if necessary. + */ + if ((pp = bdf_get_font_property(p.font, "SPACING")) != 0) { + switch (pp->value.atom[0]) { + case 'p': + case 'P': + p.font->spacing = BDF_PROPORTIONAL; + break; + case 'm': + case 'M': + p.font->spacing = BDF_MONOWIDTH; + break; + case 'c': + case 'C': + p.font->spacing = BDF_CHARCELL; + break; + } + } + + /* + * Set the monowidth field if necessary. + */ + if (p.font->spacing != BDF_PROPORTIONAL) + p.font->monowidth = p.font->bbx.width; + + /* + * Before loading the glyphs, check to see if any glyph structures have + * been added. If not, check the HBF font for the number of characters. + * Dynamically increasing glyph storage causes memory fragmentation on + * some machines and crashes. This takes care of the cases where the HBF + * file does not provide a "CHARS n" line. + */ + if (p.font->glyphs_size < hbfChars(hbf)) { + if (p.font->glyphs_size == 0) + p.font->glyphs = (bdf_glyph_t *) + malloc(sizeof(bdf_glyph_t) * hbfChars(hbf)); + else + p.font->glyphs = (bdf_glyph_t *) + realloc((char *) p.font->glyphs, + sizeof(bdf_glyph_t) * hbfChars(hbf)); + diff = hbfChars(hbf) - p.font->glyphs_size; + (void) memset((char *)(p.font->glyphs + p.font->glyphs_size), 0, + diff); + p.font->glyphs_size = hbfChars(hbf); + } + + /* + * Call the callback initially to set things up. + */ + if (p.callback != 0) { + p.cb.reason = BDF_LOAD_START; + p.cb.total = p.font->glyphs_size; + p.cb.current = 0; + (*p.callback)(&p.cb, p.client_data); + } + + /* + * Now load the glyphs. + */ + hbfForEach(hbf, _bdf_add_hbf_glyph, (void *) &p); + + /* + * Close the HBF font. + */ + hbfClose(hbf); + + /* + * Sort the glyphs by encoding. + */ + qsort((char *) p.font->glyphs, p.font->glyphs_used, sizeof(bdf_glyph_t), + by_encoding); + + /* + * After loading the HBF header, create an XLFD name. If the XLFD name + * cannot be made then preserve the name found in the HBF file. + */ + if ((name = bdf_make_xlfd_name(p.font, "HBF", "Unknown")) != 0) { + if (p.font->name != 0) + /* + * If a name already exists in the font, free it up. + */ + free(p.font->name); + + /* + * Replace the old name with the XLFD name. + */ + p.font->name = name; + } + + /* + * Mark the font as being modified and generate a message that says + * something about the font being converted from HBF format. + */ + p.font->modified = 1; + _bdf_add_acmsg(p.font, "Font converted from HBF to BDF.", 31); + + return p.font; +} +#endif /* HAVE_HBF */ + +/* + * Crop the glyph bitmap to the minimum rectangle needed to hold the bits that + * are set. Adjust the metrics based on the provided bounding box. + */ +static void +#ifdef __STDC__ +_bdf_crop_glyph(bdf_font_t *font, bdf_glyph_t *glyph) +#else +_bdf_crop_glyph(font, glyph) +bdf_font_t *font; +bdf_glyph_t *glyph; +#endif +{ + int byte; + unsigned short x, y, bpr, nbpr, col, colx, si, di; + unsigned short minx, maxx, miny, maxy; + unsigned long bytes; + unsigned char *bmap, *masks; + bdf_bbx_t nbbx; + + if (glyph == 0) + return; + + (void) memcpy((char *) &nbbx, (char *) &glyph->bbx, sizeof(bdf_bbx_t)); + + bpr = ((glyph->bbx.width * font->bpp) + 7) >> 3; + + maxx = maxy = 0; + minx = miny = 32767; + + masks = 0; + switch (font->bpp) { + case 1: + masks = onebpp; + break; + case 2: + masks = twobpp; + break; + case 4: + masks = fourbpp; + break; + } + + for (y = 0; y < glyph->bbx.height; y++) { + for (col = x = 0; x < glyph->bbx.width; x++, col += font->bpp) { + si = (col & 7) / font->bpp; + if (glyph->bitmap[(y * bpr) + (col >> 3)] & masks[si]) { + minx = MIN(minx, x); + maxx = MAX(maxx, x); + miny = MIN(miny, y); + maxy = MAX(maxy, y); + } + } + } + + /* + * Handle an empty bitmap as a special case. + */ + if (minx == 32767) { + if (glyph->bytes > 0) + free((char *) glyph->bitmap); + glyph->bytes = 0; + (void) memset((char *) &glyph->bbx, 0, sizeof(bdf_bbx_t)); + return; + } + + /* + * Increment the max points so width and height calculations won't go + * wrong. + */ + maxx++; + maxy++; + + if (minx > 0) + nbbx.x_offset += minx; + if (maxx - minx != nbbx.width) + nbbx.width = maxx - minx; + + if (miny > 0) + nbbx.ascent -= miny; + if (maxy - miny != nbbx.height) + nbbx.height = maxy - miny; + nbbx.descent = nbbx.height - nbbx.ascent; + nbbx.y_offset = -nbbx.descent; + + nbpr = ((nbbx.width * font->bpp) + 7) >> 3; + + /* + * If nothing changed, then the glyph is already contained in the + * minimum rectangle. + */ + if (memcmp((char *) &nbbx, (char *) &glyph->bbx, + sizeof(bdf_bbx_t)) == 0 || + (nbpr == bpr && nbbx.height == glyph->bbx.height)) + return; + + /* + * The metrics changed, so a new bitmap is needed. + */ + bytes = nbpr * nbbx.height; + bmap = (unsigned char *) malloc(bytes); + (void) memset((char *) bmap, 0, bytes); + + colx = minx * font->bpp; + for (y = miny; y < maxy; y++) { + for (col = x = minx; x < maxx; x++, col += font->bpp) { + si = (col & 7) / font->bpp; + byte = glyph->bitmap[(y * bpr) + (col >> 3)] & masks[si]; + if (byte) { + /* + * Position the pixel in the byte if necessary. + */ + di = ((col - colx) & 7) / font->bpp; + if (di < si) + byte <<= (si - di) * font->bpp; + else if (di > si) + byte >>= (di - si) * font->bpp; + bmap[((y - miny) * nbpr) + ((col - colx) >> 3)] |= byte; + } + } + } + + if (glyph->bytes > 0) + free((char *) glyph->bitmap); + glyph->bytes = bytes; + glyph->bitmap = bmap; + + (void) memcpy((char *) &glyph->bbx, (char *) &nbbx, sizeof(bdf_bbx_t)); +} + +/* + * Pad a character-cell font glyph to match the bounds specified in the + * provided bounding box. + */ +static void +#ifdef __STDC__ +_bdf_pad_cell(bdf_font_t *font, bdf_glyph_t *glyph, bdf_glyph_t *cell) +#else +_bdf_pad_cell(font, glyph, cell) +bdf_font_t *font; +bdf_glyph_t *glyph, *cell; +#endif +{ + bdf_bbx_t *bbx; + unsigned short si, di, sx, byte; + unsigned short x, y, dx, dy, bx, by, bpr, nbpr; + unsigned char *bmap, *masks; + + masks = 0; + switch (font->bpp) { + case 1: + masks = onebpp; + break; + case 2: + masks = twobpp; + break; + case 4: + masks = fourbpp; + break; + } + + bbx = &font->bbx; + + if (glyph->bbx.width == bbx->width && glyph->bbx.height == bbx->height) { + /* + * The glyph is already positioned in the cell. Copy the bitmap + * and return. + */ + (void) memcpy((char *) cell->bitmap, (char *) glyph->bitmap, + cell->bytes); + return; + } + + /* + * Determine the X and Y location of the baseline. + */ + bx = MYABS(bbx->x_offset - glyph->bbx.x_offset); + by = (bbx->ascent + bbx->descent) + bbx->y_offset; + + bpr = ((glyph->bbx.width * font->bpp) + 7) >> 3; + nbpr = ((bbx->width * font->bpp) + 7) >> 3; + + /* + * Set various cell values and clear the cell bitmap. + */ + bmap = cell->bitmap; + (void) memset((char *) bmap, 0, cell->bytes); + + for (dy = by - glyph->bbx.ascent, y = 0; y < glyph->bbx.height; + y++, dy++) { + for (dx = bx * font->bpp, sx = x = 0; x < glyph->bbx.width; + x++, dx += font->bpp, sx += font->bpp) { + si = (sx & 7) / font->bpp; + byte = glyph->bitmap[(y * bpr) + (sx >> 3)] & masks[si]; + if (byte) { + di = (dx & 7) / font->bpp; + if (di < si) + byte <<= (si - di) * font->bpp; + else if (di > si) + byte >>= (di - si) * font->bpp; + bmap[(dy * nbpr) + (dx >> 3)] |= byte; + } + } + } +} + +static char *unix_eol = "\n"; +static char *dos_eol = "\r\n"; +static char *mac_eol = "\r"; + +void +#ifdef __STDC__ +bdf_save_font(FILE *out, bdf_font_t *font, bdf_options_t *opts, + bdf_callback_t callback, void *data) +#else +bdf_save_font(out, font, opts, callback, data) +FILE *out; +bdf_font_t *font; +bdf_options_t *opts; +bdf_callback_t callback; +void *data; +#endif +{ + unsigned long i, j, bpr, pcnt; + double dw, ps, rx; + char *sp, *ep, *eol; + bdf_property_t *p; + bdf_glyph_t *c, *cp, cell; + bdf_callback_struct_t cb; + + if (font == 0) + return; + + eol = 0; + switch (opts->eol) { + case BDF_UNIX_EOL: + eol = unix_eol; + break; + case BDF_DOS_EOL: + eol = dos_eol; + break; + case BDF_MAC_EOL: + eol = mac_eol; + break; + } + + /* + * If the font is a character cell font, allocate some space for the + * bitmap. + */ + if (font->spacing == BDF_CHARCELL && opts->pad_cells != 0) { + bpr = ((font->bbx.width * font->bpp) + 7) >> 3; + cell.bytes = bpr * font->bbx.height; + cell.bitmap = (unsigned char *) malloc(cell.bytes); + } + + /* + * Emit the header. + */ + fprintf(out, "STARTFONT 2.1%s", eol); + + /* + * Emit the comments. + */ + if (font->comments_len > 0) { + for (sp = font->comments; *sp; sp++) { + ep = sp; + while (*ep && *ep != '\n') + ep++; + fprintf(out, "COMMENT %.*s%s", ep - sp, sp, eol); + sp = ep; + } + } + + /* + * Emit the font name. + */ + fprintf(out, "FONT %s%s", font->name, eol); + + /* + * Emit the size info. + */ + if (font->bpp == 1) + fprintf(out, "SIZE %ld %ld %ld%s", font->point_size, + font->resolution_x, font->resolution_y, eol); + else + fprintf(out, "SIZE %ld %ld %ld %hd%s", font->point_size, + font->resolution_x, font->resolution_y, font->bpp, eol); + + /* + * Emit the bounding box. + */ + fprintf(out, "FONTBOUNDINGBOX %hd %hd %hd %hd%s", + font->bbx.width, font->bbx.height, font->bbx.x_offset, + font->bbx.y_offset, eol); + + /* + * Emit the properties after counting how many are properties and + * how many are comments. + */ + for (i = pcnt = 0, p = font->props; i < font->props_used; i++, p++) { + if (memcmp(p->name, "COMMENT", 7) != 0) + pcnt++; + } + + fprintf(out, "STARTPROPERTIES %ld%s", pcnt, eol); + for (i = 0, p = font->props; i < font->props_used; i++, p++) { + fprintf(out, "%s ", p->name); + if (p->format == BDF_ATOM) { + if (p->value.atom == 0) + fprintf(out, "\"\"%s", eol); + else + fprintf(out, "\"%s\"%s", p->value.atom, eol); + } else + fprintf(out, "%ld%s", p->value.int32, eol); + } + + fprintf(out, "ENDPROPERTIES%s", eol); + + /* + * Emit the number of bitmaps in the font. + */ + fprintf(out, "CHARS %ld%s", font->unencoded_used + font->glyphs_used, eol); + + /* + * Call the callback if it was passed to start the save. + */ + if (callback != 0) { + cb.reason = BDF_SAVE_START; + cb.total = font->unencoded_used + font->glyphs_used; + cb.current = 0; + (*callback)(&cb, data); + } + + /* + * Emit the unencoded bitmaps. + */ + for (i = 0, cp = font->unencoded; i < font->unencoded_used; i++, cp++) { + /* + * If the font has character-cell spacing and the option to pad the + * glyphs to the size of the font bbx is set, then pad the glyph. + * Otherwise, crop the glyph to the minimum rectangle needed to hold + * the bitmap. + */ + if (font->spacing == BDF_CHARCELL && opts->pad_cells != 0) { + /* + * Point at the temporary glyph structure and copy the necessary + * glyph info into it. + */ + c = &cell; + c->name = cp->name; + c->encoding = cp->encoding; + c->swidth = cp->swidth; + c->dwidth = cp->dwidth; + (void) memcpy((char *) &c->bbx, (char *) &font->bbx, + sizeof(bdf_bbx_t)); + _bdf_pad_cell(font, cp, c); + } else { + c = cp; + _bdf_crop_glyph(font, c); + } + + /* + * If the font has monowidth or character-cell spacing, then assign + * the font monowidth field to the device width and recalculate the + * scalable width. + */ + if (font->spacing != BDF_PROPORTIONAL) { + c->dwidth = font->monowidth; + ps = (double) font->point_size; + rx = (double) font->resolution_x; + dw = (double) c->dwidth; + c->swidth = (unsigned short)((dw * 72000.0) / (ps * rx)); + } + if (c->name == 0) + fprintf(out, "STARTCHAR unencoded%ld%sENCODING -1%s", i, eol, eol); + else + fprintf(out, "STARTCHAR %s%sENCODING -1%s", c->name, eol, eol); + fprintf(out, "SWIDTH %hd 0%sDWIDTH %hd 0%s", + c->swidth, eol, c->dwidth, eol); + fprintf(out, "BBX %hd %hd %hd %hd%s", c->bbx.width, c->bbx.height, + c->bbx.x_offset, c->bbx.y_offset, eol); + fprintf(out, "BITMAP%s", eol); + bpr = ((c->bbx.width * font->bpp) + 7) >> 3; + for (j = 0; bpr != 0 && j < c->bytes; j++) { + if (j && j % bpr == 0) + fprintf(out, eol); + fprintf(out, "%02X", c->bitmap[j]); + } + /* + * Handle empty bitmaps like this. + */ + if (c->bbx.height > 0) + fprintf(out, eol); + fprintf(out, "ENDCHAR%s", eol); + + /* + * Call the callback if supplied. + */ + if (callback != 0) { + cb.reason = BDF_SAVING; + cb.current++; + (*callback)(&cb, data); + } + } + + /* + * Emit the other bitmaps. + */ + for (i = 0, cp = font->glyphs; i < font->glyphs_used; i++, cp++) { + /* + * If the font has character-cell spacing and the option to pad the + * glyphs to the size of the font bbx is set, then pad the glyph. + * Otherwise, crop the glyph to the minimum rectangle needed to hold + * the bitmap. + */ + if (font->spacing == BDF_CHARCELL && opts->pad_cells != 0) { + /* + * Point at the temporary glyph structure and copy the necessary + * glyph info into it. + */ + c = &cell; + c->name = cp->name; + c->encoding = cp->encoding; + c->swidth = cp->swidth; + c->dwidth = cp->dwidth; + (void) memcpy((char *) &c->bbx, (char *) &font->bbx, + sizeof(bdf_bbx_t)); + _bdf_pad_cell(font, cp, c); + } else { + c = cp; + _bdf_crop_glyph(font, c); + } + + /* + * If the font has monowidth or character-cell spacing, then assign + * the font monowidth field to the device width and recalculate the + * scalable width. + */ + if (font->spacing != BDF_PROPORTIONAL) { + c->dwidth = font->monowidth; + ps = (double) font->point_size; + rx = (double) font->resolution_x; + dw = (double) c->dwidth; + c->swidth = (unsigned short)((dw * 72000.0) / (ps * rx)); + } + if (c->name == 0) + fprintf(out, "STARTCHAR char%ld%sENCODING %ld%s", + c->encoding, eol, c->encoding, eol); + else + fprintf(out, "STARTCHAR %s%sENCODING %ld%s", + c->name, eol, c->encoding, eol); + fprintf(out, "SWIDTH %hd 0%sDWIDTH %hd 0%s", + c->swidth, eol, c->dwidth, eol); + fprintf(out, "BBX %hd %hd %hd %hd%s", c->bbx.width, c->bbx.height, + c->bbx.x_offset, c->bbx.y_offset, eol); + fprintf(out, "BITMAP%s", eol); + bpr = ((c->bbx.width * font->bpp) + 7) >> 3; + for (j = 0; bpr != 0 && j < c->bytes; j++) { + if (j && j % bpr == 0) + fprintf(out, eol); + fprintf(out, "%02X", c->bitmap[j]); + } + /* + * Handle empty bitmaps like this. + */ + if (c->bbx.height > 0) + fprintf(out, eol); + fprintf(out, "ENDCHAR%s", eol); + + /* + * Call the callback if supplied. + */ + if (callback != 0) { + cb.reason = BDF_SAVING; + cb.current++; + (*callback)(&cb, data); + } + } + + /* + * Emit the trailer. + */ + fprintf(out, "ENDFONT%s", eol); + + /* + * Always force a final call to the callback to make sure things + * get cleaned up. + */ + if (callback != 0) { + cb.reason = BDF_SAVING; + cb.current = cb.total; + (*callback)(&cb, data); + } + + /* + * If the font is a character cell font, clean up the temporary glyph. + */ + if (font->spacing == BDF_CHARCELL && opts->pad_cells != 0) + free((char *) cell.bitmap); +} + +/* + * Routine to write a single set of SBIT metrics. + */ +void +#ifdef __STDC__ +bdf_save_sbit_metrics(FILE *out, bdf_font_t *font, bdf_options_t *opts, + char *appname) +#else +bdf_save_sbit_metrics(out, font, opts, appname) +bdf_font_t *font; +bdf_options_t *opts; +char *appname; +#endif +{ + char *eol; + + eol = 0; + switch (opts->eol) { + case BDF_UNIX_EOL: + eol = unix_eol; + break; + case BDF_DOS_EOL: + eol = dos_eol; + break; + case BDF_MAC_EOL: + eol = mac_eol; + break; + } + + /* + * Throw a simple header in. + */ + if (appname) + fprintf(out, ";%s; SBIT metrics file generated by \"%s\".%s;%s%s", eol, + appname, eol, eol, eol); + + /* + * Save PPEM. + */ + fprintf(out, ";%s; Pixels Per Em.%s;%s", eol, eol, eol); + fprintf(out, "PPEM %ld%s%s", font->point_size, eol, eol); + + /* + * If the font is character cell or monowidth, set this boolean. + */ + if (font->spacing != BDF_PROPORTIONAL) { + fprintf(out, + ";%s; Font is not proportional, so use mono advance.%s;%s", + eol, eol, eol); + fprintf(out, "FORCECONSTANTMETRICS TRUE%s%s", eol, eol); + } else { + fprintf(out, + ";%s; Font is proportional, so do not use mono advance.%s;%s", + eol, eol, eol); + fprintf(out, "FORCECONSTANTMETRICS FALSE%s%s", eol, eol); + } + + /* + * Do the horizontal line metrics only. + */ + fprintf(out, ";%s; Horizontal line metrics.%s;%s", eol, eol, eol); + + fprintf(out, "H_ASCENDER %ld%sH_DESCENDER %ld%s", font->font_ascent, eol, + font->font_descent, eol); + fprintf(out, "H_WIDTHMAX %hd%s", font->bbx.width, eol); + fprintf(out, "H_MINORIGINSB %hd%sH_MINADVANCEBL %hd%s", + font->bbx.x_offset, eol, + font->bbx.width + font->bbx.x_offset, eol); + fprintf(out, "H_MAXBEFOREBL %hd%sH_MINAFTERBL %hd%s%s", + font->bbx.ascent, eol, font->bbx.y_offset, eol, eol); + + /* + * Write the default caret info. + */ + fprintf(out, ";%s; Caret slope and offset info.%s;%s", eol, eol, eol); + fprintf(out, "CARETSLOPENUMERATOR 1%sCARETSLOPEDENOMINATOR 0%s", eol, eol); + fprintf(out, "CARETOFFSET 0%s%s", eol, eol); + + /* + * Write the bitmap options. + */ + fprintf(out, ";%s; Bitmap options.%s;%s", eol, eol, eol); + fprintf(out, "DIRECTION H%sSTORAGE FAST%s%s", eol, eol, eol); + + /* + * Scaled bitmaps not implemented yet. + */ + fprintf(out, ";%s; Scaled bitmap info (Not Yet Implemented).%s;%s", + eol, eol, eol); +} + +/* + * Special routine to dump the font in the Roman Czyborra's hex format. It + * only dumps the encoded glyphs and assumes the bitmaps have the correct + * sizes. + */ +void +#ifdef __STDC__ +bdf_export_hex(FILE *out, bdf_font_t *font, bdf_callback_t callback, + void *data) +#else +bdf_export_hex(out, font, callback, data) +FILE *out; +bdf_font_t *font; +bdf_callback_t callback; +void *data; +#endif +{ + int bpr, fbpr, j, k; + unsigned long i, ng; + bdf_glyph_t *gp, cell; + bdf_callback_struct_t cb; + + if (font == 0 || out == 0) + return; + + if (font->glyphs_used == 0) + return; + + /* + * Call the callback if it was passed to start the export. + */ + if (callback != 0) { + cb.reason = BDF_EXPORT_START; + cb.total = font->glyphs_used; + cb.current = 0; + (*callback)(&cb, data); + } + + fbpr = ((font->bbx.width * font->bpp) + 7) >> 3; + bpr = (((font->bbx.width >> 1) * font->bpp) + 7) >> 3; + cell.bytes = fbpr * font->bbx.height; + cell.bitmap = (unsigned char *) malloc(cell.bytes); + + for (i = 0, ng = font->glyphs_used, gp = font->glyphs; i < ng; i++, gp++) { + _bdf_pad_cell(font, gp, &cell); + fprintf(out, "%04lX:", gp->encoding & 0xffff); + if (gp->bbx.width <= (font->bbx.width >> 1)) { + for (j = 0; j < cell.bytes; j += fbpr) { + for (k = 0; k < bpr; k++) + fprintf(out, "%02X", cell.bitmap[j + k]); + } + } else { + for (j = 0; j < cell.bytes; j++) + fprintf(out, "%02X", cell.bitmap[j]); + } + if (cell.bytes > 0) + putc('\n', out); + + /* + * Call the callback if supplied. + */ + if (callback != 0) { + cb.reason = BDF_EXPORTING; + cb.current++; + (*callback)(&cb, data); + } + } + + /* + * Clean up the cell. + */ + free((char *) cell.bitmap); + + /* + * Always call a final callback to make sure the client gets a chance to + * clean things up. + */ + if (callback != 0) { + cb.reason = BDF_EXPORTING; + cb.current = cb.total; + (*callback)(&cb, data); + } +} + +void +#ifdef __STDC__ +bdf_free_font(bdf_font_t *font) +#else +bdf_free_font(font) +bdf_font_t *font; +#endif +{ + unsigned long i; + bdf_glyph_t *glyphs; + + if (font == 0) + return; + + if (font->name != 0) + free(font->name); + + /* + * Free up the internal hash table of property names. + */ + hash_free((hashtable *) font->internal); + free((char *) font->internal); + + /* + * Free up the comment info. + */ + if (font->comments_len > 0) + free(font->comments); + + /* + * Free up the auto-correction messages. + */ + if (font->acmsgs_len > 0) + free(font->acmsgs); + + /* + * Free up the properties. + */ + for (i = 0; i < font->props_size; i++) { + if (font->props[i].format == BDF_ATOM && font->props[i].value.atom) + free(font->props[i].value.atom); + } + + if (font->props_size > 0 && font->props != 0) + free((char *) font->props); + + /* + * Free up the character info. + */ + for (i = 0, glyphs = font->glyphs; i < font->glyphs_used; i++, glyphs++) { + if (glyphs->name) + free(glyphs->name); + if (glyphs->bytes > 0 && glyphs->bitmap != 0) + free((char *) glyphs->bitmap); + } + + for (i = 0, glyphs = font->unencoded; i < font->unencoded_used; + i++, glyphs++) { + if (glyphs->name) + free(glyphs->name); + if (glyphs->bytes > 0) + free((char *) glyphs->bitmap); + } + + if (font->glyphs_size > 0) + free((char *) font->glyphs); + + if (font->unencoded_size > 0) + free((char *) font->unencoded); + + /* + * Free up the overflow storage if it was used. + */ + for (i = 0, glyphs = font->overflow.glyphs; i < font->overflow.glyphs_used; + i++, glyphs++) { + if (glyphs->name != 0) + free(glyphs->name); + if (glyphs->bytes > 0) + free((char *) glyphs->bitmap);; + } + if (font->overflow.glyphs_size > 0) + free((char *) font->overflow.glyphs); + + free((char *) font); +} + +void +#ifdef __STDC__ +bdf_create_property(char *name, int format) +#else +bdf_create_property(name, format) +char *name; +int format; +#endif +{ + unsigned long n; + bdf_property_t *p; + + /* + * First check to see if the property has + * already been added or not. If it has, then + * simply ignore it. + */ + + if (hash_lookup(name, &proptbl)) + return; + + if (nuser_props == 0) + user_props = (bdf_property_t *) malloc(sizeof(bdf_property_t)); + else + user_props = (bdf_property_t *) realloc((char *) user_props, + sizeof(bdf_property_t) * + (nuser_props + 1)); + + p = user_props + nuser_props; + (void) memset((char *) p, 0, sizeof(bdf_property_t)); + n = (unsigned long)(strlen(name) + 1); + p->name = (char *) malloc(n); + (void) memcpy(p->name, name, n); + p->format = format; + p->builtin = 0; + + n = _num_bdf_properties + nuser_props; + hash_insert(p->name, (void *) n, &proptbl); + + nuser_props++; +} + +bdf_property_t * +#ifdef __STDC__ +bdf_get_property(char *name) +#else +bdf_get_property(name) +char *name; +#endif +{ + hashnode hn; + unsigned long propid; + + if (name == 0 || *name == 0) + return 0; + + if ((hn = hash_lookup(name, &proptbl)) == 0) + return 0; + + propid = (unsigned long) hn->data; + if (propid >= _num_bdf_properties) + return user_props + (propid - _num_bdf_properties); + return _bdf_properties + propid; +} + +/* + * Routine to compare two property names. + */ +static int +#ifdef __STDC__ +by_prop_name(const void *a, const void *b) +#else +by_prop_name(a, b) +char *a, *b; +#endif +{ + bdf_property_t *p1, *p2; + + p1 = (bdf_property_t *) a; + p2 = (bdf_property_t *) b; + + return strcmp(p1->name, p2->name); +} + +unsigned long +#ifdef __STDC__ +bdf_property_list(bdf_property_t **props) +#else +bdf_property_list(props) +bdf_property_t **props; +#endif +{ + unsigned long n; + bdf_property_t *p; + + n = _num_bdf_properties + nuser_props; + if (props != 0 && n != 0) { + p = (bdf_property_t *) malloc(sizeof(bdf_property_t) * n); + (void) memcpy((char *) p, (char *) _bdf_properties, + sizeof(bdf_property_t) * _num_bdf_properties); + (void) memcpy((char *)(p + _num_bdf_properties), (char *) user_props, + sizeof(bdf_property_t) * nuser_props); + qsort((char *) p, n, sizeof(bdf_property_t), by_prop_name); + *props = p; + } + return n; +} + +int +#ifdef __STDC__ +bdf_replace_comments(bdf_font_t *font, char *comments, + unsigned long comments_len) +#else +bdf_replace_comments(font, comments, comments_len) +bdf_font_t *font; +char *comments; +unsigned long comments_len; +#endif +{ + if (font == 0 || comments_len == 0) + return 0; + + if (font->comments_len > 0) + free(font->comments); + + font->comments = (char *) malloc(comments_len + 1); + (void) memcpy(font->comments, comments, comments_len); + font->comments[comments_len] = 0; + font->comments_len = comments_len; + font->modified = 1; + return 1; +} + +unsigned long +#ifdef __STDC__ +bdf_font_property_list(bdf_font_t *font, bdf_property_t **props) +#else +bdf_font_property_list(font, props) +bdf_font_t *font; +bdf_property_t **props; +#endif +{ + bdf_property_t *p; + + if (font == 0 || font->props_used == 0) + return 0; + + if (props != 0) { + p = (bdf_property_t *) malloc(sizeof(bdf_property_t) * + font->props_used); + (void) memcpy((char *) p, (char *) font->props, + sizeof(bdf_property_t) * font->props_used); + qsort((char *) p, font->props_used, sizeof(bdf_property_t), + by_prop_name); + *props = p; + } + + return font->props_used; +} + +void +#ifdef __STDC__ +bdf_add_font_property(bdf_font_t *font, bdf_property_t *property) +#else +bdf_add_font_property(font, property) +bdf_font_t *font; +bdf_property_t *property; +#endif +{ + int len; + unsigned long propid; + hashnode hn; + bdf_property_t *p, *ip; + + if (property == 0 || property->name == 0 || property->name[0] == 0) + return; + + /* + * If the font does not have a property hash table yet, make + * sure it is allocated. + */ + if (font->internal == 0) { + font->internal = (void *) malloc(sizeof(hashtable)); + hash_init((hashtable *) font->internal); + } + + /* + * See if the property is in the general property table yet. + * If it isn't, then add it. + */ + if ((hn = hash_lookup(property->name, &proptbl)) == 0) + bdf_create_property(property->name, property->format); + else { + /* + * If the property exists and is a user defined property, make sure + * its format is updated to match the property being added. + */ + propid = (unsigned long) hn->data; + if (propid >= _num_bdf_properties) { + p = user_props + (propid - _num_bdf_properties); + if (p->format != property->format) + p->format = property->format; + } + } + + /* + * If the font already has this property, then change the existing one. + */ + hn = hash_lookup(property->name, (hashtable *) font->internal); + if (hn != 0) { + /* + * Changing an existing property value. + */ + p = font->props + ((unsigned long) hn->data); + + /* + * If the format changed, then free the atom value if the original + * format was an atom. + */ + if (p->format == BDF_ATOM && property->format != BDF_ATOM && + p->value.atom != 0) + free((char *) p->value.atom); + p->format = property->format; + + switch (p->format) { + case BDF_ATOM: + /* + * If the property value is the same, then just return. + */ + if (property->value.atom == p->value.atom || + (property->value.atom && p->value.atom && + strcmp(property->value.atom, p->value.atom) == 0)) + return; + if (property->value.atom == 0) + len = 1; + else + len = strlen(property->value.atom) + 1; + if (len > 1) { + p->value.atom = (char *) malloc(len); + (void) memcpy(p->value.atom, property->value.atom, len); + } else + p->value.atom = 0; + break; + case BDF_INTEGER: + /* + * If the property value is the same, then just return. + */ + if (p->value.int32 == property->value.int32) + return; + p->value.int32 = property->value.int32; + break; + case BDF_CARDINAL: + /* + * If the property value is the same, then just return. + */ + if (p->value.card32 == property->value.card32) + return; + p->value.card32 = property->value.card32; + break; + } + } else { + /* + * New property being added. + */ + + /* + * Get the internal table entry for a pointer to the + * name of the property. + */ + hn = hash_lookup(property->name, &proptbl); + propid = (unsigned long) hn->data; + if (propid >= _num_bdf_properties) + ip = user_props + (propid - _num_bdf_properties); + else + ip = _bdf_properties + propid; + + /* + * Add it to the property list first. + */ + if (font->props_used == font->props_size) { + if (font->props_size == 0) + font->props = (bdf_property_t *) malloc(sizeof(bdf_property_t)); + else + font->props = (bdf_property_t *) + realloc((char *) font->props, sizeof(bdf_property_t) * + (font->props_size + 1)); + font->props_size++; + } + p = font->props + font->props_used; + + p->name = ip->name; + p->format = ip->format; + p->builtin = ip->builtin; + + switch (p->format) { + case BDF_ATOM: + if (property->value.atom == 0) + len = 1; + else + len = strlen(property->value.atom) + 1; + if (len > 1) { + p->value.atom = (char *) malloc(len); + (void) memcpy(p->value.atom, property->value.atom, len); + } else + p->value.atom = 0; + break; + case BDF_INTEGER: + p->value.int32 = property->value.int32; + break; + case BDF_CARDINAL: + p->value.card32 = property->value.card32; + break; + } + + /* + * Now insert it into the internal hash table. + */ + hash_insert(p->name, (void *) font->props_used, + (hashtable *) font->internal); + font->props_used++; + } + + if (memcmp(property->name, "DEFAULT_CHAR", 12) == 0) + /* + * If the property just added is DEFAULT_CHAR, then make sure the + * default_glyph field is set. + */ + font->default_glyph = p->value.card32; + else if (memcmp(property->name, "FONT_ASCENT", 11) == 0) + /* + * If the property just added is FONT_ASCENT, then adjust the + * font_ascent field. + */ + font->font_ascent = p->value.int32; + else if (memcmp(property->name, "FONT_DESCENT", 12) == 0) + /* + * If the property just added is FONT_DESCENT, then adjust the + * font_descent field. + */ + font->font_descent = p->value.int32; + else if (memcmp(property->name, "RESOLUTION_X", 12) == 0) + /* + * If the property just added is RESOLUTION_X, then adjust the + * resolution_x field. + */ + font->resolution_x = p->value.card32; + else if (memcmp(property->name, "RESOLUTION_Y", 12) == 0) + /* + * If the property just added is RESOLUTION_Y, then adjust the + * resolution_y field. + */ + font->resolution_y = p->value.card32; + else if (memcmp(property->name, "POINT_SIZE", 10) == 0) + /* + * If the property just added is POINT_SIZE, then adjust the + * point_size field. + */ + font->point_size = p->value.int32 / 10; + else if (memcmp(property->name, "SPACING", 7) == 0) { + /* + * Make sure the font spacing is kept in synch if the property + * changes. If the spacing changes from proportional to one + * of the others, force the monowidth to be set. + */ + switch (p->value.atom[0]) { + case 'C': + case 'c': + if (font->spacing == BDF_PROPORTIONAL) + font->monowidth = font->bbx.width + font->bbx.x_offset; + font->spacing = BDF_CHARCELL; + break; + case 'M': + case 'm': + if (font->spacing == BDF_PROPORTIONAL) + font->monowidth = font->bbx.width + font->bbx.x_offset; + font->spacing = BDF_MONOWIDTH; + break; + case 'P': + case 'p': + font->spacing = BDF_PROPORTIONAL; + break; + } + } + + /* + * Make sure the font is marked as modified. + */ + font->modified = 1; +} + +void +#ifdef __STDC__ +bdf_delete_font_property(bdf_font_t *font, char *name) +#else +bdf_delete_font_property(font, name) +bdf_font_t *font; +char *name; +#endif +{ + hashnode hn; + unsigned long off; + bdf_property_t *p; + + if (font == 0 || name == 0 || *name == 0 || font->props_used == 0) + return; + + if ((hn = hash_lookup(name, (hashtable *) font->internal)) == 0) + return; + + off = (unsigned long) hn->data; + p = font->props + off; + + /* + * Delete the ATOM value if appropriate. + */ + if (p->format == BDF_ATOM && p->value.atom != 0) + free(p->value.atom); + + /* + * The property exists. Two things needs to be done: + * 1. Remove the property from the hash table. + * 2. Remove the property from the font's list of properties. + */ + hash_delete(name, (hashtable *) font->internal); + + /* + * Locate its offset in the font property list. + */ + if (off < font->props_used - 1) + /* + * We have to shift the property list down. + */ + _bdf_memmove((char *) p, (char *)(p + 1), + sizeof(bdf_property_t) * ((font->props_used - 1) - off)); + font->props_used--; + + /* + * If the font property happens to be DEFAULT_CHAR, then make sure the + * default_glyph field is reset. + */ + if (strncmp(name, "DEFAULT_CHAR", 12) == 0) + font->default_glyph = -1; + + /* + * Update the hash table with the correct indexes. + */ + for (off = 0, p = font->props; off < font->props_used; off++, p++) + hash_insert(p->name, (void *) off, (hashtable *) font->internal); + + /* + * Mark the font as being modified. + */ + font->modified = 1; +} + +bdf_property_t * +#ifdef __STDC__ +bdf_get_font_property(bdf_font_t *font, const char *name) +#else +bdf_get_font_property(font, name) +bdf_font_t *font; +const char *name; +#endif +{ + hashnode hn; + + if (font == 0 || font->props_size == 0 || name == 0 || *name == 0) + return 0; + + hn = hash_lookup((char*)name, (hashtable *) font->internal); + return (hn) ? (font->props + ((unsigned long) hn->data)) : 0; +} + +typedef struct { + bdf_options_t *opts; + bdf_options_callback_t callback; + void *client_data; + _bdf_list_t list; +} _bdf_opts_parse_t; + +static int +#ifdef __STDC__ +_bdf_get_boolean(char *val) +#else +_bdf_get_boolean(val) +char *val; +#endif +{ + int ok; + + ok = 0; + if (val == 0 || *val == 0) + return ok; + + switch (val[0]) { + case '0': + case 'F': + case 'f': + case 'N': + case 'n': + ok = 0; + break; + case '1': + case 'T': + case 't': + case 'Y': + case 'y': + ok = 1; + break; + } + return ok; +} + +static int +#ifdef __STDC__ +_bdf_parse_options(char *line, unsigned long linelen, unsigned long lineno, + void *call_data, void *client_data) +#else +_bdf_parse_options(line, linelen, lineno, call_data, client_data) +char *line; +unsigned long linelen, lineno; +void *call_data, *client_data; +#endif +{ + _bdf_list_t *lp; + _bdf_opts_parse_t *p; + long bpp; + + p = (_bdf_opts_parse_t *) client_data; + lp = &p->list; + + /* + * Split the line into fields. + */ + _bdf_split(" \t+", line, linelen, lp); + + if (lp->field[0][0] == 'b' && + memcmp(lp->field[0], "bits_per_pixel", 14) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: bits_per_pixel <1, 2, or 4>.\n", + lineno); + } else { + bpp = _bdf_atol(lp->field[1], 0, 10); + if (!(bpp == 1 || bpp == 2 || bpp == 4)) { + fprintf(stderr, + "bdf: warning: %ld: invalid bits per pixel %ld.\n", + lineno, bpp); + fprintf(stderr, + "bdf: warning: %ld: bits_per_pixel <1, 2, or 4>.\n", + lineno); + } else + p->opts->bits_per_pixel = bpp; + } + return 0; + } + + if (lp->field[0][0] == 'e' && memcmp(lp->field[0], "eol", 3) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: eol .\n", lineno); + } else { + switch (lp->field[1][0]) { + case 'u': + case 'U': + p->opts->eol = BDF_UNIX_EOL; + break; + case 'd': + case 'D': + p->opts->eol = BDF_DOS_EOL; + break; + case 'm': + case 'M': + p->opts->eol = BDF_MAC_EOL; + break; + } + } + return 0; + } + + if (lp->field[0][0] == 'c' && + memcmp(lp->field[0], "correct_metrics", 15) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: correct_metrics .\n", lineno); + } else + p->opts->correct_metrics = _bdf_get_boolean(lp->field[1]); + + return 0; + } + + if (lp->field[0][0] == 'k' && + memcmp(lp->field[0], "keep_unencoded", 14) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: keep_unencoded .\n", lineno); + } else + p->opts->keep_unencoded = _bdf_get_boolean(lp->field[1]); + + return 0; + } + + if (lp->field[0][0] == 'k' && + memcmp(lp->field[0], "keep_comments", 13) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: keep_comments .\n", lineno); + } else + p->opts->keep_comments = _bdf_get_boolean(lp->field[1]); + + return 0; + } + + if (lp->field[0][0] == 'p' && + memcmp(lp->field[0], "pad_character_cells", 19) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: pad_character_cells .\n", + lineno); + } else + p->opts->pad_cells = _bdf_get_boolean(lp->field[1]); + + return 0; + } + + if (lp->field[0][0] == 'p' && + memcmp(lp->field[0], "point_size", 10) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: point_size .\n", lineno); + } else + p->opts->point_size = _bdf_atol(lp->field[1], 0, 10); + return 0; + } + + if (lp->field[0][0] == 'h' && + memcmp(lp->field[0], "horizontal_resolution", 21) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: horizontal_resolution .\n", + lineno); + } else + p->opts->resolution_x = _bdf_atoul(lp->field[1], 0, 10); + return 0; + } + + if (lp->field[0][0] == 'v' && + memcmp(lp->field[0], "vertical_resolution", 19) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: vertical_resolution .\n", + lineno); + } else + p->opts->resolution_y = _bdf_atoul(lp->field[1], 0, 10); + return 0; + } + + if (lp->field[0][0] == 'f' && + memcmp(lp->field[0], "font_spacing", 12) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: font_spacing .\n", + lineno); + } else { + switch (lp->field[1][0]) { + case 'P': + case 'p': + p->opts->font_spacing = BDF_PROPORTIONAL; + break; + case 'M': + case 'm': + p->opts->font_spacing = BDF_MONOWIDTH; + break; + case 'C': + case 'c': + p->opts->font_spacing = BDF_CHARCELL; + break; + default: + fprintf(stderr, + "bdf: warning: %ld: unknown font spacing '%s'.\n", + lineno, lp->field[1]); + } + } + return 0; + } + + if (lp->field[0][0] == 'p' && + memcmp(lp->field[0], "property", 8) == 0) { + if (lp->used < 3) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: property .\n", + lineno); + } else { + switch (lp->field[2][0]) { + case 'A': + case 'a': + bdf_create_property(lp->field[1], BDF_ATOM); + break; + case 'C': + case 'c': + bdf_create_property(lp->field[1], BDF_CARDINAL); + break; + case 'I': + case 'i': + bdf_create_property(lp->field[1], BDF_INTEGER); + break; + default: + fprintf(stderr, + "bdf: warning: %ld: unknown property type '%s'.\n", + lineno, lp->field[2]); + } + } + return 0; + } + + if (lp->field[0][0] == 'h' && + memcmp(lp->field[0], "hint_truetype_glyphs", 20) == 0) { + if (lp->used < 2) { + fprintf(stderr, + "bdf: warning: %ld: incorrect number of fields %ld.\n", + lineno, lp->used); + fprintf(stderr, + "bdf: warning: %ld: hint_truetype_glyphs .\n", + lineno); + } else + p->opts->ttf_hint = _bdf_get_boolean(lp->field[1]); + + return 0; + } + + if (lp->field[0][0] == 'g' && + memcmp(lp->field[0], "generate_ranges", 15) == 0) + /* + * Simply ignore the glyph ranges entry in the config file. + */ + return 0; + + /* + * If the callback returns a non-zero value, the caller has handled the + * unknown option found in the file. + */ + if (p->callback != 0 && + (*p->callback)(p->opts, lp->field, lp->used, p->client_data) != 0) + return 0; + + fprintf(stderr, "bdf: warning: %ld: unknown configuration option '%s'.\n", + lineno, lp->field[0]); + return 0; +} + +void +#ifdef __STDC__ +bdf_load_options(FILE *in, bdf_options_t *opts, + bdf_options_callback_t callback, void *client_data) +#else +bdf_load_options(in, opts, callback, client_data) +FILE *in; +bdf_options_t *opts; +bdf_options_callback_t callback; +void *client_data; +#endif +{ + unsigned long lineno; + _bdf_opts_parse_t p; + + /* + * Don't bother loading the options if the file or options structure + * is NULL. + */ + if (in == 0 || opts == 0) + return; + + (void *) memset((char *) &p, 0, sizeof(_bdf_opts_parse_t)); + p.opts = opts; + p.callback = callback; + p.client_data = client_data; + (void) _bdf_readlines(fileno(in), _bdf_parse_options, (void *) &p, + &lineno); + + /* + * Free up the list if there is any space allocated. + */ + if (p.list.size > 0) + free((char *) p.list.field); +} + +void +#ifdef __STDC__ +bdf_save_options(FILE *out, bdf_options_t *opts) +#else +bdf_save_options(out, opts) +FILE *out; +bdf_options_t *opts; +#endif +{ + unsigned long i; + + if (out == 0 || opts == 0) + return; + + fprintf(out, "#\n# Metrics corrections.\n#\ncorrect_metrics "); + if (opts->correct_metrics) + fprintf(out, "true\n\n"); + else + fprintf(out, "false\n\n"); + + fprintf(out, "#\n# Preserve unencoded glyphs.\n#\nkeep_unencoded "); + if (opts->keep_unencoded) + fprintf(out, "true\n\n"); + else + fprintf(out, "false\n\n"); + + fprintf(out, "#\n# Preserve comments.\n#\nkeep_comments "); + if (opts->keep_comments) + fprintf(out, "true\n\n"); + else + fprintf(out, "false\n\n"); + + fprintf(out, "#\n# Pad character cells.\n#\npad_character_cells "); + if (opts->pad_cells) + fprintf(out, "true\n\n"); + else + fprintf(out, "false\n\n"); + + fprintf(out, "#\n# Font spacing.\n#\nfont_spacing "); + switch (opts->font_spacing) { + case BDF_PROPORTIONAL: + fprintf(out, "proportional\n\n"); + break; + case BDF_MONOWIDTH: + fprintf(out, "monowidth\n\n"); + break; + case BDF_CHARCELL: + fprintf(out, "charactercell\n\n"); + break; + } + + fprintf(out, "#\n# Point size.\n#\npoint_size %ld\n\n", opts->point_size); + + fprintf(out, + "#\n# Horizontal resolution.\n#\nhorizontal_resolution %ld\n\n", + opts->resolution_x); + + fprintf(out, + "#\n# Vertical resolution.\n#\nvertical_resolution %ld\n\n", + opts->resolution_x); + + fprintf(out, + "#\n# Bits per pixel.\n#\nbits_per_pixel %d\n\n", + opts->bits_per_pixel); + + fprintf(out, "#\n# Hint TrueType glyphs.\n#\nhint_truetype_glyphs "); + if (opts->ttf_hint) + fprintf(out, "true\n\n"); + else + fprintf(out, "false\n\n"); + + fprintf(out, "#\n# Set the EOL used when writing BDF fonts.\n#\neol "); + switch (opts->eol) { + case BDF_UNIX_EOL: + fprintf(out, "unix\n\n"); + break; + case BDF_DOS_EOL: + fprintf(out, "dos\n\n"); + break; + case BDF_MAC_EOL: + fprintf(out, "mac\n\n"); + break; + } + + /* + * Write out the user defined properties if they exist. + */ + if (nuser_props == 0) + return; + + fprintf(out, "#\n# User defined properties.\n#\n"); + + for (i = 0; i < nuser_props; i++) { + fprintf(out, "property %s ", user_props[i].name); + switch (user_props[i].format) { + case BDF_ATOM: + fprintf(out, "atom\n"); + break; + case BDF_CARDINAL: + fprintf(out, "cardinal\n"); + break; + case BDF_INTEGER: + fprintf(out, "integer\n"); + break; + } + } +} + +void +#ifdef __STDC__ +bdf_default_options(bdf_options_t *opts) +#else +bdf_default_options(opts) +bdf_options_t *opts; +#endif +{ + if (opts == 0) + return; + + (void) memcpy((char *) opts, (char *) &_bdf_opts, sizeof(bdf_options_t)); +} + +bdf_font_t * +#ifdef __STDC__ +bdf_new_font(char *name, long point_size, long resolution_x, long resolution_y, + long spacing, int bpp) +#else +bdf_new_font(name, point_size, resolution_x, resolution_y, spacing, bpp) +char *name; +long point_size, resolution_x, resolution_y, spacing; +int bpp; +#endif +{ + long psize; + char sp[2]; + bdf_font_t *font; + double dp, dr; + bdf_property_t prop; + + font = (bdf_font_t *) calloc(1, sizeof(bdf_font_t)); + if (name != 0 && *name != 0) { + font->name = (char *) malloc(strlen(name) + 1); + (void) strcpy(font->name, name); + } + + font->bpp = bpp; + font->point_size = point_size; + font->resolution_x = resolution_x; + font->resolution_y = resolution_y; + + /* + * Determine the pixel size of the new font based on the + * point size and resolution. + */ + dr = (double) resolution_y; + dp = (double)(point_size * 10); + psize = (long)(((dp * dr) / 722.7) + 0.5); + + /* + * Make the default width about 1.5 smaller than the height. + */ + font->bbx.height = psize; + font->bbx.width = (unsigned short)((double) psize) / 1.5; + + /* + * Now determine the default ascent and descent assuming a + * the descent is about 1/4 the ascent. + */ + font->bbx.descent = psize >> 2; + font->bbx.ascent = psize - font->bbx.descent; + + font->bbx.y_offset = -font->bbx.descent; + + /* + * Allocation the internal hash tables. + */ + font->internal = (void *) malloc(sizeof(hashtable)); + hash_init((hashtable *) font->internal); + + font->default_glyph = -1; + font->spacing = spacing; + + /* + * Add various useful properties. + */ + prop.name = "POINT_SIZE"; + prop.format = BDF_INTEGER; + prop.value.int32 = font->point_size * 10; + bdf_add_font_property(font, &prop); + + prop.name = "PIXEL_SIZE"; + prop.format = BDF_INTEGER; + prop.value.int32 = psize; + bdf_add_font_property(font, &prop); + + prop.name = "RESOLUTION_X"; + prop.format = BDF_CARDINAL; + prop.value.card32 = (unsigned long) font->resolution_x; + bdf_add_font_property(font, &prop); + + prop.name = "RESOLUTION_Y"; + prop.format = BDF_CARDINAL; + prop.value.card32 = (unsigned long) font->resolution_y; + bdf_add_font_property(font, &prop); + + prop.name = "FONT_ASCENT"; + prop.format = BDF_INTEGER; + prop.value.int32 = (long) font->bbx.ascent; + bdf_add_font_property(font, &prop); + + prop.name = "FONT_DESCENT"; + prop.format = BDF_INTEGER; + prop.value.int32 = (long) font->bbx.descent; + bdf_add_font_property(font, &prop); + + prop.name = "AVERAGE_WIDTH"; + prop.format = BDF_INTEGER; + prop.value.int32 = font->bbx.width * 10; + bdf_add_font_property(font, &prop); + + sp[0] = 'P'; + sp[1] = 0; + switch (spacing) { + case BDF_PROPORTIONAL: + sp[0] = 'P'; + break; + case BDF_MONOWIDTH: + sp[0] = 'M'; + break; + case BDF_CHARCELL: + sp[0] = 'C'; + break; + } + prop.name = "SPACING"; + prop.format = BDF_ATOM; + prop.value.atom = sp; + bdf_add_font_property(font, &prop); + + /* + * Mark the font as unmodified. + */ + font->modified = 0; + + return font; +} + +void +#ifdef __STDC__ +bdf_set_default_metrics(bdf_font_t *font) +#else +bdf_set_default_metrics(font) +bdf_font_t *font; +#endif +{ + long psize; + double dp, dr; + bdf_property_t prop; + + /* + * Determine the pixel size of the new font based on the + * point size and resolution. + */ + dr = (double) font->resolution_y; + dp = (double)(font->point_size * 10); + psize = (long)(((dp * dr) / 722.7) + 0.5); + + /* + * Make the default width about 1.5 smaller than the height. + */ + font->bbx.height = psize; + font->bbx.width = (unsigned short)((double) psize) / 1.5; + + /* + * Now determine the default ascent and descent assuming a + * the descent is about 1/4 the ascent. + */ + font->bbx.descent = psize >> 2; + font->bbx.ascent = psize - font->bbx.descent; + + font->bbx.y_offset = -font->bbx.descent; + + font->default_glyph = -1; + + /* + * Add various useful properties. + */ + prop.name = "FONT_ASCENT"; + prop.format = BDF_INTEGER; + prop.value.int32 = (long) font->bbx.ascent; + bdf_add_font_property(font, &prop); + + prop.name = "FONT_DESCENT"; + prop.format = BDF_INTEGER; + prop.value.int32 = (long) font->bbx.descent; + bdf_add_font_property(font, &prop); + + prop.name = "AVERAGE_WIDTH"; + prop.format = BDF_INTEGER; + prop.value.int32 = font->bbx.width * 10; + bdf_add_font_property(font, &prop); +} + +int +#ifdef __STDC__ +bdf_glyph_modified(bdf_font_t *font, long which, int unencoded) +#else +bdf_glyph_modified(font, which, unencoded) +bdf_font_t *font; +long which; +int unencoded; +#endif +{ + if (font == 0 || which < 0) + return 0; + + if (unencoded) + return _bdf_glyph_modified(font->umod, which); + else + return _bdf_glyph_modified(font->nmod, which); +} + +void +#ifdef __STDC__ +bdf_copy_glyphs(bdf_font_t *font, long start, long end, + bdf_glyphlist_t *glyphs, int unencoded) +#else +bdf_copy_glyphs(font, start, end, glyphs, unencoded) +bdf_font_t *font; +long start, end; +bdf_glyphlist_t *glyphs; +int unencoded; +#endif +{ + long tmp, i, nc; + bdf_glyph_t *cp, *dp; + short maxas, maxds, maxrb, minlb, maxlb, rb; + + if (start > end) { + tmp = end; + end = start; + start = tmp; + } + + glyphs->bpp = font->bpp; + glyphs->start = start; + glyphs->end = end; + glyphs->glyphs_used = 0; + + tmp = (end - start) + 1; + if (tmp > glyphs->glyphs_size) { + if (glyphs->glyphs_size == 0) + glyphs->glyphs = (bdf_glyph_t *) malloc(sizeof(bdf_glyph_t) * tmp); + else + glyphs->glyphs = (bdf_glyph_t *) realloc((char *) glyphs->glyphs, + sizeof(bdf_glyph_t) * tmp); + cp = glyphs->glyphs + glyphs->glyphs_size; + (void) memset((char *) cp, 0, + sizeof(bdf_glyph_t) * (tmp - glyphs->glyphs_size)); + glyphs->glyphs_size = tmp; + } + + /* + * Clear out bitmaps and names in the existing entries. + */ + for (cp = glyphs->glyphs, i = 0; i < glyphs->glyphs_size; i++, cp++) { + if (cp->name != 0) + free(cp->name); + if (cp->bytes > 0) + free((char *) cp->bitmap); + } + + /* + * Zero out everything. + */ + (void) memset((char *) &glyphs->bbx, 0, sizeof(bdf_bbx_t)); + (void) memset((char *) glyphs->glyphs, 0, + sizeof(bdf_glyph_t) * glyphs->glyphs_size); + + /* + * Initialize the bounds used to generate the overall bounding box for the + * set of glyphs being copied. + */ + minlb = font->bbx.width; + maxlb = maxrb = maxas = maxds = 0; + + /* + * Do the copy. + */ + nc = (unencoded == 0) ? font->glyphs_used : font->unencoded_used; + cp = (unencoded == 0) ? font->glyphs : font->unencoded; + dp = glyphs->glyphs; + + for (i = 0; + i < nc && ((unencoded && i <= end) || cp->encoding <= end); + i++, cp++) { + if ((unencoded && i >= start) || cp->encoding >= start) { + (void) memcpy((char *) dp, (char *) cp, sizeof(bdf_glyph_t)); + if (cp->name != 0) { + dp->name = (char *) malloc(strlen(cp->name) + 1); + (void) strcpy(dp->name, cp->name); + } + if (cp->bytes > 0) { + dp->bytes = cp->bytes; + dp->bitmap = (unsigned char *) malloc(cp->bytes); + (void) memcpy((char *) dp->bitmap, (char *) cp->bitmap, + cp->bytes); + } + + /* + * Determine the overall metrics for the group of characters being + * copied. + */ + maxas = MAX(cp->bbx.ascent, maxas); + maxds = MAX(cp->bbx.descent, maxds); + rb = cp->bbx.width + cp->bbx.x_offset; + maxrb = MAX(rb, maxrb); + minlb = MIN(cp->bbx.x_offset, minlb); + maxlb = MAX(cp->bbx.x_offset, maxlb); + + glyphs->glyphs_used++; + dp++; + } + } + + /* + * Set the overall metrics for this set of glyphs. + */ + glyphs->bbx.width = maxrb - minlb; + glyphs->bbx.x_offset = minlb; + + glyphs->bbx.height = maxas + maxds; + glyphs->bbx.ascent = maxas; + glyphs->bbx.descent = maxds; + glyphs->bbx.y_offset = -maxds; +} + +void +#ifdef __STDC__ +bdf_delete_glyphs(bdf_font_t *font, long start, long end, int unencoded) +#else +bdf_delete_glyphs(font, start, end, unencoded) +bdf_font_t *font; +long start, end; +int unencoded; +#endif +{ + long i, n, nc, cnt; + bdf_glyph_t *cp, *sp, *ep; + + if (font == 0) + return; + + if (start > end) { + cnt = end; + end = start; + start = cnt; + } + + nc = (unencoded == 0) ? font->glyphs_used : font->unencoded_used; + cp = (unencoded == 0) ? font->glyphs : font->unencoded; + sp = ep = 0; + + for (i = 0; i < nc && cp->encoding <= end; i++, cp++) { + if (cp->encoding >= start && sp == 0) + sp = cp; + } + ep = cp; + if (sp == 0) + sp = ep; + + if (ep > sp) { + /* + * There are some glyphs to delete. + * 1. Free the name and bitmap fields of the glyphs being deleted. + * 2. Move the end range down if necessary. + * 3. Clear the glyphs on the end if a move was done. + */ + + /* + * Mark the font as being modified. + */ + font->modified = 1; + + cnt = ep - sp; + + for (cp = sp; cp < ep; cp++) { + /* + * Mark the glyphs being deleted as also being modified so the + * empty cells can be shown correctly by the client programs. + */ + if (unencoded) + _bdf_set_glyph_modified(font->umod, cp->encoding); + else + _bdf_set_glyph_modified(font->nmod, cp->encoding); + + if (cp->name != 0) + free(cp->name); + if (cp->bytes > 0) + free((char *) cp->bitmap); + } + + cp = (unencoded == 0) ? font->glyphs : font->unencoded; + + /* + * Check to see if there are some glyphs that need to + * be moved down. + */ + if (ep - cp < nc) { + /* + * Shift the glyphs down. + */ + n = nc - (ep - cp); + _bdf_memmove((char *) sp, (char *) ep, sizeof(bdf_glyph_t) * n); + + /* + * Set the starting point for the clear. + */ + ep = sp + n; + } else + /* + * Set the starting point for the clear. + */ + ep = sp; + + /* + * Clear the glyph space just moved. + */ + n = nc - (ep - cp); + (void) memset((char *) ep, 0, sizeof(bdf_glyph_t) * n); + + /* + * Adjust the number of glyphs used. + */ + if (unencoded == 0) + font->glyphs_used -= cnt; + else + font->unencoded_used -= cnt; + + /* + * If unencoded glyphs were deleted, re-encode all + * of them to cause a shift when everything is redrawn. + */ + if (unencoded != 0) { + for (i = 0, cp = font->unencoded; i < font->unencoded_used; + i++, cp++) { + if (_bdf_glyph_modified(font->umod, cp->encoding)) { + _bdf_clear_glyph_modified(font->umod, cp->encoding); + _bdf_set_glyph_modified(font->umod, i); + } + cp->encoding = i; + } + } + } +} + +/* + * Routines for quick and dirty dithering. + */ +static void +#ifdef __STDC__ +_bdf_one_to_n(bdf_glyphlist_t *gl, int n) +#else +_bdf_one_to_n(gl, n) +bdf_glyphlist_t *gl; +int n; +#endif +{ + long i; + unsigned short bpr, sbpr, bytes, col, sx, sy; + unsigned char *nbmap, *masks; + bdf_glyph_t *gp; + + if (gl == 0 || gl->glyphs_used == 0) + return; + + masks = 0; + switch (n) { + case 1: + masks = onebpp; + break; + case 2: + masks = twobpp; + break; + case 4: + masks = fourbpp; + break; + } + + gl->bpp = n; + for (gp = gl->glyphs, i = 0; i < gl->glyphs_used; i++, gp++) { + if (gp->bbx.width == 0 || gp->bbx.height == 0) + continue; + sbpr = (gp->bbx.width + 7) >> 3; + bpr = ((gp->bbx.width * n) + 7) >> 3; + bytes = bpr * gp->bbx.height; + nbmap = (unsigned char *) malloc(bytes); + (void) memset((char *) nbmap, 0, bytes); + + for (sy = 0; sy < gp->bbx.height; sy++) { + for (col = sx = 0; sx < gp->bbx.width; sx++, col += n) { + if (gp->bitmap[(sy * sbpr) + (sx >> 3)] & (0x80 >> (sx & 7))) + nbmap[(sy * bpr) + (col >> 3)] |= masks[(col & 7) / n]; + } + } + free((char *) gp->bitmap); + gp->bytes = bytes; + gp->bitmap = nbmap; + } +} + +static void +#ifdef __STDC__ +_bdf_n_to_one(bdf_glyphlist_t *gl) +#else +_bdf_n_to_one(gl) +bdf_glyphlist_t *gl; +#endif +{ + long i; + unsigned short bpr, sbpr, bytes, col, sx, sy; + unsigned char *nbmap, *masks; + bdf_glyph_t *gp; + + if (gl == 0 || gl->glyphs_used == 0) + return; + + masks = 0; + switch (gl->bpp) { + case 1: + masks = onebpp; + break; + case 2: + masks = twobpp; + break; + case 4: + masks = fourbpp; + break; + } + + for (gp = gl->glyphs, i = 0; i < gl->glyphs_used; i++, gp++) { + if (gp->bbx.width == 0 || gp->bbx.height == 0) + continue; + sbpr = ((gp->bbx.width * gl->bpp) + 7) >> 3; + bpr = (gp->bbx.width + 7) >> 3; + bytes = bpr * gp->bbx.height; + nbmap = (unsigned char *) malloc(bytes); + (void) memset((char *) nbmap, 0, bytes); + + for (sy = 0; sy < gp->bbx.height; sy++) { + for (col = sx = 0; sx < gp->bbx.width; sx++, col += gl->bpp) { + if (gp->bitmap[(sy * sbpr) + (col >> 3)] & + masks[(col & 7) / gl->bpp]) + nbmap[(sy * bpr) + (sx >> 3)] |= (0x80 >> (sx & 7)); + } + } + free((char *) gp->bitmap); + gp->bytes = bytes; + gp->bitmap = nbmap; + } + gl->bpp = 1; +} + +static void +#ifdef __STDC__ +_bdf_two_to_four(bdf_glyphlist_t *gl) +#else +_bdf_two_to_four(gl) +bdf_glyphlist_t *gl; +#endif +{ + long i; + unsigned short bpr, sbpr, bytes, col, si, byte, sx, sy; + unsigned char *nbmap, *masks; + bdf_glyph_t *gp; + + if (gl == 0 || gl->glyphs_used == 0) + return; + + masks = twobpp; + + for (gp = gl->glyphs, i = 0; i < gl->glyphs_used; i++, gp++) { + if (gp->bbx.width == 0 || gp->bbx.height == 0) + continue; + sbpr = ((gp->bbx.width << 1) + 7) >> 3; + bpr = ((gp->bbx.width << 2) + 7) >> 3; + bytes = bpr * gp->bbx.height; + nbmap = (unsigned char *) malloc(bytes); + (void) memset((char *) nbmap, 0, bytes); + + for (sy = 0; sy < gp->bbx.height; sy++) { + for (col = sx = 0; sx < gp->bbx.width; sx++, col += 2) { + si = (col & 7) >> 1; + byte = gp->bitmap[(sy * sbpr) + (col >> 3)] & masks[si]; + if (byte) { + /* + * Shift the byte down to make an index. + */ + if (si < 3) + byte >>= (3 - si) * gl->bpp; + + /* + * Scale the index to four bits per pixel and shift it into + * place before adding it. + */ + byte = (byte << 2) + 3; + if ((sx & 1) == 0) + byte <<= 4; + nbmap[(sy * bpr) + ((sx << 2) >> 3)] |= byte; + } + } + } + free((char *) gp->bitmap); + gp->bytes = bytes; + gp->bitmap = nbmap; + } + gl->bpp = 4; +} + +static void +#ifdef __STDC__ +_bdf_four_to_two(bdf_glyphlist_t *gl) +#else +_bdf_four_to_two(gl) +bdf_glyphlist_t *gl; +#endif +{ + long i; + unsigned short bpr, sbpr, bytes, col, si, byte, sx, sy; + unsigned char *nbmap, *masks; + bdf_glyph_t *gp; + + if (gl == 0 || gl->glyphs_used == 0) + return; + + masks = fourbpp; + + gl->bpp = 2; + for (gp = gl->glyphs, i = 0; i < gl->glyphs_used; i++, gp++) { + sbpr = ((gp->bbx.width << 2) + 7) >> 3; + bpr = ((gp->bbx.width << 1) + 7) >> 3; + bytes = bpr * gp->bbx.height; + nbmap = (unsigned char *) malloc(bytes); + (void) memset((char *) nbmap, 0, bytes); + + for (sy = 0; sy < gp->bbx.height; sy++) { + for (col = sx = 0; sx < gp->bbx.width; sx++, col += 4) { + si = (col & 7) >> 2; + byte = gp->bitmap[(sy * sbpr) + (col >> 3)] & masks[si]; + if (byte) { + /* + * Shift the byte down to make an index. + */ + if (si == 0) + byte >>= 4; + + /* + * Scale the index to two bits per pixel and shift it into + * place if necessary. + */ + byte >>= 2; + + si = ((sx << 1) & 7) >> 1; + if (si < 3) + byte <<= (3 - si) << 1; + + nbmap[(sy * bpr) + ((sx << 1) >> 3)] |= byte; + } + } + } + free((char *) gp->bitmap); + gp->bytes = bytes; + gp->bitmap = nbmap; + } +} + +int +#ifdef __STDC__ +bdf_replace_glyphs(bdf_font_t *font, long start, bdf_glyphlist_t *glyphs, + int unencoded) +#else +bdf_replace_glyphs(font, start, glyphs, unencoded) +bdf_font_t *font; +long start; +bdf_glyphlist_t *glyphs; +int unencoded; +#endif +{ + int resize, appending; + long i, n, ng, end, del, remaining, off[2]; + bdf_glyph_t *sgp, *gp, *dgp; + short maxas, maxds, maxrb, minlb, maxlb, rb; + double ps, rx, dw; + bdf_bbx_t nbbx; + + resize = 0; + + if (font == 0) + return resize; + + /* + * Dither the incoming bitmaps so they match the same bits per pixel as + * the font. + */ + if (glyphs->bpp != font->bpp) { + if (glyphs->bpp == 1) + _bdf_one_to_n(glyphs, font->bpp); + else if (font->bpp == 1) + _bdf_n_to_one(glyphs); + else if (glyphs->bpp == 2) + _bdf_two_to_four(glyphs); + else + _bdf_four_to_two(glyphs); + } + + /* + * Set the point size and horizontal resolution so the scalable width can + * be determined. + */ + ps = (double) font->point_size; + rx = (double) font->resolution_x; + + /* + * Determine if a resize is needed. + */ + + /* + * Determine the bounding box for the font without the characters being + * replaced. + */ + minlb = 32767; + maxlb = maxrb = maxas = maxds = 0; + + /* + * Get the font bounds. + */ + maxas = MAX(font->bbx.ascent, maxas); + maxds = MAX(font->bbx.descent, maxds); + rb = font->bbx.width + font->bbx.x_offset; + maxrb = MAX(rb, maxrb); + minlb = MIN(font->bbx.x_offset, minlb); + maxlb = MAX(font->bbx.x_offset, maxlb); + + /* + * Get the bounds of the incoming glyphs. + */ + maxas = MAX(glyphs->bbx.ascent, maxas); + maxds = MAX(glyphs->bbx.descent, maxds); + rb = glyphs->bbx.width + glyphs->bbx.x_offset; + maxrb = MAX(rb, maxrb); + minlb = MIN(glyphs->bbx.x_offset, minlb); + maxlb = MAX(glyphs->bbx.x_offset, maxlb); + + /* + * Set up the new font bounding box, minus the characters that are being + * removed and with the new characters added. + */ + nbbx.width = maxrb - minlb; + nbbx.x_offset = minlb; + + nbbx.height = maxas + maxds; + nbbx.ascent = maxas; + nbbx.descent = maxds; + nbbx.y_offset = -maxds; + + /* + * Now determine if the combination of the glyphs removed and the new + * glyphs cause the font bounding box to be changed. + */ + resize = (nbbx.width > font->bbx.width || + nbbx.height > font->bbx.height) ? 1 : 0; + + /* + * Set the pointers to the glyphs. + */ + ng = (unencoded == 0) ? font->glyphs_used : font->unencoded_used; + sgp = gp = (unencoded == 0) ? font->glyphs : font->unencoded; + + /* + * Locate the closest glyph on or following `start'. + */ + for (i = 0; i < ng && gp->encoding < start; i++, gp++) ; + + appending = (i == ng); + + /* + * Set the starting point for copying the incoming glyphs. + */ + dgp = gp; + + n = glyphs->end - glyphs->start; + end = start + n; + + /* + * Delete all the glyphs between `start' and `end'. + */ + for (del = 0, i = start; i <= end; i++) { + /* + * Mark the character as being modified. + */ + if (ng > 0 && !appending && gp->encoding == i) { + if (unencoded == 0) + _bdf_set_glyph_modified(font->nmod, i); + else + _bdf_set_glyph_modified(font->umod, i); + + if (gp->name != 0) + free(gp->name); + if (gp->bytes > 0) + free((char *) gp->bitmap); + del++; + gp++; + } + } + + /* + * Determine how many glyphs remain following the last one deleted. + */ + remaining = ng - (gp - sgp); + + if (glyphs->glyphs_used == 0) { + /* + * If the glyph list is empty, then shift any remaining glyphs down + * to the destination. + */ + _bdf_memmove((char *) dgp, (char *) gp, + sizeof(bdf_glyph_t) * remaining); + if (unencoded == 0) + font->glyphs_used -= del; + else + font->unencoded_used -= del; + } else { + /* + * Insert the glyph list after making sure there is enough space to + * hold them. Also adjust the encoding and scalable width values + * after copying the glyphs. + */ + if (unencoded == 0) { + n = (font->glyphs_used - del) + glyphs->glyphs_used; + if (n > font->glyphs_size) { + off[0] = gp - sgp; + off[1] = dgp - sgp; + if (font->glyphs_size == 0) + font->glyphs = sgp = + (bdf_glyph_t *) malloc(sizeof(bdf_glyph_t) * n); + else + font->glyphs = sgp = + (bdf_glyph_t *) realloc((char *) font->glyphs, + sizeof(bdf_glyph_t) * n); + gp = sgp + off[0]; + dgp = sgp + off[1]; + font->glyphs_size = n; + } + + /* + * Calculate how many will need to be shifted. + */ + if ((n = glyphs->glyphs_used - del) >= font->glyphs_used) + n = 0; + } else { + n = (font->unencoded_used - del) + glyphs->glyphs_used; + if (n > font->unencoded_size) { + off[0] = gp - sgp; + off[1] = dgp - sgp; + if (font->unencoded_size == 0) + font->unencoded = sgp = + (bdf_glyph_t *) malloc(sizeof(bdf_glyph_t) * n); + else + font->unencoded = sgp = + (bdf_glyph_t *) realloc((char *) font->unencoded, + sizeof(bdf_glyph_t) * n); + gp = sgp + off[0]; + dgp = sgp + off[1]; + font->unencoded_size = n; + } + + /* + * Calculate how many will need to be shifted. + */ + if ((n = glyphs->glyphs_used - del) >= font->unencoded_used) + n = 0; + } + + /* + * Shift any following glyphs up or down if needed. + */ + if (n) + _bdf_memmove((char *)(gp + n), (char *) gp, + sizeof(bdf_glyph_t) * remaining); + + /* + * Copy the incoming glyphs, copy their names and bitmaps, + * set their encodings, and set their scalable widths. + */ + (void) memcpy((char *) dgp, (char *) glyphs->glyphs, + sizeof(bdf_glyph_t) * glyphs->glyphs_used); + for (i = 0; i < glyphs->glyphs_used; i++, dgp++) { + if (dgp->name != 0) + dgp->name = (char *) _bdf_strdup((unsigned char *) dgp->name, + strlen(dgp->name) + 1); + + if (dgp->bytes > 0) + dgp->bitmap = _bdf_strdup(dgp->bitmap, dgp->bytes); + + dgp->encoding = start + (dgp->encoding - glyphs->start); + + /* + * Mark the glyph as being modified in case it fills a cell that + * was empty before. + */ + _bdf_set_glyph_modified(font->nmod, dgp->encoding); + + dw = (double) dgp->dwidth; + dgp->swidth = (unsigned short)((dw * 72000.0) / (ps * rx)); + } + + /* + * Adjust the count of glyphs. + */ + ng = (ng - del) + glyphs->glyphs_used; + if (unencoded == 0) + font->glyphs_used = ng; + else + font->unencoded_used = ng; + } + + /* + * Last, if the replacement was done in the unencoded section, + * reencode all the glyphs so they show up properly. + */ + if (unencoded != 0) { + for (i = 0; i < ng; i++, sgp++) { + if (_bdf_glyph_modified(font->umod, sgp->encoding)) { + _bdf_clear_glyph_modified(font->umod, sgp->encoding); + _bdf_set_glyph_modified(font->umod, i); + } + sgp->encoding = i; + } + } + + if (resize) + (void) memcpy((char *) &font->bbx, (char *) &nbbx, sizeof(bdf_bbx_t)); + + font->modified = 1; + + return resize; +} + +int +#ifdef __STDC__ +bdf_insert_glyphs(bdf_font_t *font, long start, bdf_glyphlist_t *glyphs) +#else +bdf_insert_glyphs(font, start, glyphs) +bdf_font_t *font; +long start; +bdf_glyphlist_t *glyphs; +#endif +{ + int resize; + unsigned long i, ng, n, which; + bdf_glyph_t *gp; + + resize = 0; + + if (font == 0) + return resize; + + /* + * Dither the incoming bitmaps so they match the same bits per pixel as + * the font. + */ + if (glyphs->bpp != font->bpp) { + if (glyphs->bpp == 1) + _bdf_one_to_n(glyphs, font->bpp); + else if (font->bpp == 1) + _bdf_n_to_one(glyphs); + else if (glyphs->bpp == 2) + _bdf_two_to_four(glyphs); + else + _bdf_four_to_two(glyphs); + } + + /* + * Locate the starting glyph. + */ + gp = font->glyphs; + ng = font->glyphs_used; + for (i = 0; i < ng && gp->encoding < start; i++, gp++) ; + + /* + * If there are no glyphs at the starting point, then simply do a replace. + */ + if (i == ng) + return bdf_replace_glyphs(font, start, glyphs, 0); + + /* + * Go through the glyphs that would be shifted due to the insertion and + * determine if some of them will overflow the 0xffff boundary. + */ + n = (glyphs->end - glyphs->start) + 1; + for (which = i; i < ng; i++, gp++) { + if (gp->encoding + n > 0xffff) + break; + } + + if (i < ng) { + /* + * Some glyphs have to be moved to the unencoded area because they + * would overflow the 0xffff boundary if they were moved up. + */ + bdf_copy_glyphs(font, gp->encoding, font->glyphs[ng - 1].encoding, + &font->overflow, 0); + bdf_delete_glyphs(font, gp->encoding, font->glyphs[ng - 1].encoding, + 0); + resize += bdf_replace_glyphs(font, font->unencoded_used, + &font->overflow, 1); + } + + /* + * Go back to the insertion point and shift the remaining glyph encodings + * up by `n'. + */ + for (gp = font->glyphs + which; which < font->glyphs_used; which++, gp++) { + /* + * Mark the new glyph locations as being modified. + */ + gp->encoding += n; + _bdf_set_glyph_modified(font->nmod, gp->encoding); + } + + /* + * Finally, mark the font as being modified and insert the new glyphs. + */ + font->modified = 1; + + return resize + bdf_replace_glyphs(font, start, glyphs, 0); +} + +static void +#ifdef __STDC__ +_bdf_combine_glyphs(bdf_font_t *font, bdf_glyph_t *f, bdf_glyph_t *g) +#else +_bdf_combine_glyphs(font, f, g) +bdf_font_t *font; +bdf_glyph_t *f, *g; +#endif +{ + unsigned short x, sx, sy, si, dx, dy, di, byte, dbpr, fbpr, gbpr; + short maxas, maxds, maxrb, minlb, maxlb, rb; + unsigned char *masks; + bdf_bbx_t nbbx; + bdf_glyph_t tmp; + + /* + * Determine the max bounding box for the two glyphs. + */ + minlb = 32767; + maxlb = maxrb = maxas = maxds = 0; + + /* + * Get the font glyph bounds. + */ + maxas = MAX(f->bbx.ascent, maxas); + maxds = MAX(f->bbx.descent, maxds); + rb = f->bbx.width + f->bbx.x_offset; + maxrb = MAX(rb, maxrb); + minlb = MIN(f->bbx.x_offset, minlb); + maxlb = MAX(f->bbx.x_offset, maxlb); + + /* + * Get the bounds of the incoming glyph. + */ + maxas = MAX(g->bbx.ascent, maxas); + maxds = MAX(g->bbx.descent, maxds); + rb = g->bbx.width + g->bbx.x_offset; + maxrb = MAX(rb, maxrb); + minlb = MIN(g->bbx.x_offset, minlb); + maxlb = MAX(g->bbx.x_offset, maxlb); + + /* + * Set up the new glyph bounding box. + */ + nbbx.width = maxrb - minlb; + nbbx.x_offset = minlb; + nbbx.height = maxas + maxds; + nbbx.ascent = maxas; + nbbx.descent = maxds; + nbbx.y_offset = -maxds; + + masks = 0; + switch (font->bpp) { + case 1: + masks = onebpp; + break; + case 2: + masks = twobpp; + break; + case 4: + masks = fourbpp; + break; + } + + fbpr = ((f->bbx.width * font->bpp) + 7) >> 3; + gbpr = ((g->bbx.width * font->bpp) + 7) >> 3; + dbpr = ((nbbx.width * font->bpp) + 7) >> 3; + + if (memcmp((char *) &nbbx, (char *) &f->bbx, sizeof(bdf_bbx_t)) == 0) { + /* + * The largest is the first, so merge the second in with it. + */ + dy = f->bbx.ascent - g->bbx.ascent; + for (sy = 0; sy < g->bbx.height; sy++, dy++) { + for (x = sx = 0; x < g->bbx.width; x++, sx += font->bpp) { + si = (sx & 7) / font->bpp; + if ((byte = g->bitmap[(sy * gbpr) + (sx >> 3)] & masks[si])) + /* + * No shifting of the byte is needed because the x offset + * is the same for both glyphs. + */ + f->bitmap[(dy * fbpr) + (sx >> 3)] |= byte; + } + } + } else if (memcmp((char *) &nbbx, (char *) &g->bbx, + sizeof(bdf_bbx_t)) == 0) { + /* + * The largest is the incoming glyph, so merge into that one and swap + * it with the font glyph. + */ + dy = g->bbx.ascent - f->bbx.ascent; + for (sy = 0; sy < f->bbx.height; sy++, dy++) { + for (x = sx = 0; x < f->bbx.width; x++, sx += font->bpp) { + si = (sx & 7) / font->bpp; + if ((byte = f->bitmap[(sy * gbpr) + (sx >> 3)] & masks[si])) + /* + * No shifting of the byte is needed because the x offset + * is the same for both glyphs. + */ + g->bitmap[(dy * fbpr) + (sx >> 3)] |= byte; + } + } + + /* + * Now swap the two glyphs while preserving the name and encoding of + * the first glyph. + */ + tmp.swidth = g->swidth; + tmp.dwidth = g->dwidth; + tmp.bytes = g->bytes; + tmp.bitmap = g->bitmap; + (void) memcpy((char *) &tmp.bbx, (char *) &g->bbx, sizeof(bdf_bbx_t)); + + g->swidth = f->swidth; + g->dwidth = f->dwidth; + g->bytes = f->bytes; + g->bitmap = f->bitmap; + (void) memcpy((char *) &g->bbx, (char *) &f->bbx, sizeof(bdf_bbx_t)); + + f->swidth = tmp.swidth; + f->dwidth = tmp.dwidth; + f->bytes = tmp.bytes; + f->bitmap = tmp.bitmap; + (void) memcpy((char *) &f->bbx, (char *) &tmp.bbx, sizeof(bdf_bbx_t)); + } else { + /* + * Need a new bitmap for the combination of the two. + */ + tmp.bytes = nbbx.height * dbpr; + tmp.bitmap = (unsigned char *) malloc(tmp.bytes); + (void) memset((char *) tmp.bitmap, 0, tmp.bytes); + + /* + * Merge the first glyph. + */ + dy = nbbx.ascent - f->bbx.ascent; + for (sy = 0; sy < f->bbx.height; sy++, dy++) { + dx = MYABS(nbbx.x_offset - f->bbx.x_offset) * font->bpp; + for (x = sx = 0; x < f->bbx.width; x++, + sx += font->bpp, dx += font->bpp) { + si = (sx & 7) / font->bpp; + if ((byte = f->bitmap[(sy * fbpr) + (sx >> 3)] & masks[si])) { + di = (dx & 7) / font->bpp; + if (di < si) + byte <<= (si - di) * font->bpp; + else if (di > si) + byte >>= (di - si) * font->bpp; + tmp.bitmap[(dy * dbpr) + (dx >> 3)] |= byte; + } + } + } + + /* + * Merge the second glyph. + */ + dy = nbbx.ascent - g->bbx.ascent; + for (sy = 0; sy < g->bbx.height; sy++, dy++) { + dx = MYABS(nbbx.x_offset - g->bbx.x_offset) * font->bpp; + for (x = sx = 0; x < g->bbx.width; x++, + sx += font->bpp, dx += font->bpp) { + si = (sx & 7) / font->bpp; + if ((byte = g->bitmap[(sy * gbpr) + (sx >> 3)] & masks[si])) { + di = (dx & 7) / font->bpp; + if (di < si) + byte <<= (si - di) * font->bpp; + else if (di > si) + byte >>= (di - si) * font->bpp; + tmp.bitmap[(dy * dbpr) + (dx >> 3)] |= byte; + } + } + } + + /* + * Now clear the font glyph and copy the temp glyph to it. + */ + if (f->bytes > 0) + free((char *) f->bitmap); + f->bytes = tmp.bytes; + f->bitmap = tmp.bitmap; + (void) memcpy((char *) &f->bbx, (char *) &nbbx, sizeof(bdf_bbx_t)); + + /* + * Set the device width. Pay attention to whether the font is + * monowidth or character cell. + */ + if (font->spacing != BDF_PROPORTIONAL) + f->dwidth = font->monowidth; + else + f->dwidth = MAX(f->dwidth, g->dwidth); + } +} + +int +#ifdef __STDC__ +bdf_merge_glyphs(bdf_font_t *font, long start, bdf_glyphlist_t *glyphs, + int unencoded) +#else +bdf_merge_glyphs(font, start, glyphs, unencoded) +bdf_font_t *font; +long start; +bdf_glyphlist_t *glyphs; +int unencoded; +#endif +{ + int resize; + long i, n, ng, end, add, enc, off; + bdf_glyph_t *sgp, *gp, *dgp, *base; + short maxas, maxds, maxrb, minlb, maxlb, rb; + double ps, rx, dw; + bdf_bbx_t nbbx; + + resize = 0; + + if (font == 0) + return resize; + + /* + * If the glyphs are being merged in the unencoded area, simply append + * them. The unencoded area is simply storage. + */ + if (unencoded) + return bdf_replace_glyphs(font, font->unencoded_used, glyphs, unencoded); + + /* + * Dither the incoming bitmaps so they match the same bits per pixel as + * the font. + */ + if (glyphs->bpp != font->bpp) { + if (glyphs->bpp == 1) + _bdf_one_to_n(glyphs, font->bpp); + else if (font->bpp == 1) + _bdf_n_to_one(glyphs); + else if (glyphs->bpp == 2) + _bdf_two_to_four(glyphs); + else + _bdf_four_to_two(glyphs); + } + + /* + * Set the point size and horizontal resolution so the scalable width can + * be determined. + */ + ps = (double) font->point_size; + rx = (double) font->resolution_x; + + /* + * Determine if a resize is needed. + */ + + /* + * Determine the bounding box for the font without the characters being + * replaced. + */ + minlb = 32767; + maxlb = maxrb = maxas = maxds = 0; + + /* + * Get the font bounds. + */ + maxas = MAX(font->bbx.ascent, maxas); + maxds = MAX(font->bbx.descent, maxds); + rb = font->bbx.width + font->bbx.x_offset; + maxrb = MAX(rb, maxrb); + minlb = MIN(font->bbx.x_offset, minlb); + maxlb = MAX(font->bbx.x_offset, maxlb); + + /* + * Get the bounds of the incoming glyphs. + */ + maxas = MAX(glyphs->bbx.ascent, maxas); + maxds = MAX(glyphs->bbx.descent, maxds); + rb = glyphs->bbx.width + glyphs->bbx.x_offset; + maxrb = MAX(rb, maxrb); + minlb = MIN(glyphs->bbx.x_offset, minlb); + maxlb = MAX(glyphs->bbx.x_offset, maxlb); + + /* + * Set up the new font bounding box, minus the characters that are being + * removed and with the new characters added. + */ + nbbx.width = maxrb - minlb; + nbbx.x_offset = minlb; + + nbbx.height = maxas + maxds; + nbbx.ascent = maxas; + nbbx.descent = maxds; + nbbx.y_offset = -maxds; + + /* + * Now determine if the combination of the glyphs removed and the new + * glyphs cause the font bounding box to be changed. + */ + resize = (nbbx.width > font->bbx.width || + nbbx.height > font->bbx.height) ? 1 : 0; + + /* + * Set the pointers to the glyphs. + */ + ng = (unencoded == 0) ? font->glyphs_used : font->unencoded_used; + gp = (unencoded == 0) ? font->glyphs : font->unencoded; + + /* + * Locate the closest glyph on or following `start'. + */ + for (i = 0; i < ng && gp->encoding < start; i++, gp++) ; + + if (i == ng) + /* + * If the gylphs are being added off the end of the list, simply insert + * them so any overflows can be handled. + */ + return bdf_insert_glyphs(font, start, glyphs); + + /* + * Set the starting point for copying the incoming glyphs. + */ + dgp = gp; + + n = glyphs->end - glyphs->start; + end = start + n; + + /* + * Count the number of glyphs that will be added and mark all the + * glyphs that will be modified. + */ + for (sgp = glyphs->glyphs, add = 0, i = start; i <= end; i++) { + enc = (sgp->encoding - glyphs->start) + start; + + /* + * Mark the glyph as being modified. + */ + if (unencoded == 0) + _bdf_set_glyph_modified(font->nmod, enc); + else + _bdf_set_glyph_modified(font->umod, enc); + + if (enc == gp->encoding) + sgp++; + else if (enc < gp->encoding) { + add++; + sgp++; + } + + if (gp->encoding == i) + gp++; + } + + if (add > 0) { + ng += add; + + /* + * Need to make room for some glyphs that will be added. + */ + if (unencoded) { + off = dgp - font->unencoded; + if (font->unencoded_used == 0) + font->unencoded = + (bdf_glyph_t *) malloc(sizeof(bdf_glyph_t) * ng); + else + font->unencoded = + (bdf_glyph_t *) realloc((char *) font->unencoded, + sizeof(bdf_glyph_t) * ng); + dgp = font->unencoded + off; + font->unencoded_used = ng; + } else { + off = dgp - font->glyphs; + if (font->glyphs_used == 0) + font->glyphs = + (bdf_glyph_t *) malloc(sizeof(bdf_glyph_t) * ng); + else + font->glyphs = + (bdf_glyph_t *) realloc((char *) font->glyphs, + sizeof(bdf_glyph_t) * ng); + dgp = font->glyphs + off; + font->glyphs_used = ng; + } + } + + /* + * Now go through and do two things: + * 1. Insert new incoming glyphs. + * 2. Combine two glyphs at the same location. + */ + base = (!unencoded) ? font->glyphs : font->unencoded; + for (gp = dgp, sgp = glyphs->glyphs, i = start; i <= end; i++) { + enc = (sgp->encoding - glyphs->start) + start; + if (enc < gp->encoding) { + /* + * Shift the glyphs up by one and add this one. + */ + if (gp - base < ng) + _bdf_memmove((char *)(gp + 1), (char *) gp, + sizeof(bdf_glyph_t) * (ng - (gp - base))); + (void) memcpy((char *) gp, (char *) sgp, sizeof(bdf_glyph_t)); + gp->name = (char *) _bdf_strdup((unsigned char *) gp->name, + strlen(gp->name) + 1); + if (gp->bytes > 0) + gp->bitmap = _bdf_strdup(gp->bitmap, gp->bytes); + gp->encoding = i; + sgp++; + dw = (double) gp->dwidth; + gp->swidth = (unsigned short)((dw * 72000.0) / (ps * rx)); + } else if (enc == gp->encoding) { + _bdf_combine_glyphs(font, gp, sgp); + dw = (double) gp->dwidth; + gp->swidth = (unsigned short)((dw * 72000.0) / (ps * rx)); + sgp++; + } + if (gp->encoding == i) + gp++; + } + + if (resize) + (void) memcpy((char *) &font->bbx, (char *) &nbbx, sizeof(bdf_bbx_t)); + + font->modified = 1; + + return resize; +} + +void +#ifdef __STDC__ +bdf_set_modified(bdf_font_t *font, int modified) +#else +bdf_set_modified(font, modified) +bdf_font_t *font; +int modified; +#endif +{ + if (font == 0 || font->modified == modified) + return; + + if (modified == 0) { + /* + * Clear out the modified bitmaps. + */ + (void) memset((char *) font->nmod, 0, sizeof(unsigned long) * 2048); + (void) memset((char *) font->umod, 0, sizeof(unsigned long) * 2048); + } + font->modified = modified; +} + +/************************************************************************** + * + * XLFD font name functions. + * + **************************************************************************/ + +static char *xlfdfields[] = { + "FOUNDRY", + "FAMILY_NAME", + "WEIGHT_NAME", + "SLANT", + "SETWIDTH_NAME", + "ADD_STYLE_NAME", + "PIXEL_SIZE", + "POINT_SIZE", + "RESOLUTION_X", + "RESOLUTION_Y", + "SPACING", + "AVERAGE_WIDTH", + "CHARSET_REGISTRY", + "CHARSET_ENCODING", +}; + +int +#ifdef __STDC__ +bdf_has_xlfd_name(bdf_font_t *font) +#else +bdf_has_xlfd_name(font) +bdf_font_t *font; +#endif +{ + unsigned long len; + char name[256]; + _bdf_list_t list; + + if (font == 0 || font->name == 0 || font->name[0] == 0) + return 0; + + len = (unsigned long)(strlen(font->name) + 1); + (void) memcpy(name, font->name, len); + list.size = list.used = 0; + _bdf_split("-", name, len, &list); + if (list.size > 0) + free((char *) list.field); + + return (list.used == 15); +} + +char * +#ifdef __STDC__ +bdf_make_xlfd_name(bdf_font_t *font, char *foundry, char *family) +#else +bdf_make_xlfd_name(font, foundry, family) +bdf_font_t *font; +char *foundry, *family; +#endif +{ + int len; + double dp, dr; + unsigned long i, width, used; + unsigned short awidth, pxsize; + bdf_property_t *pp; + bdf_glyph_t *gp; + char spacing, nbuf[256], *np, *name; + const char *val; + + if (font == 0 || bdf_has_xlfd_name(font)) + return 0; + + np = nbuf; + + /* + * Add the FOUNDRY field. + */ + if ((pp = bdf_get_font_property(font, "FOUNDRY")) != 0) + foundry = pp->value.atom; + sprintf(np, "-%s", foundry); + np += strlen(np); + + /* + * Add the FAMILY_NAME field. + */ + if ((pp = bdf_get_font_property(font, "FAMILY_NAME")) != 0) + family = pp->value.atom; + sprintf(np, "-%s", family); + np += strlen(np); + + /* + * Add the WEIGHT_NAME field. + */ + val = ((pp = bdf_get_font_property(font, "WEIGHT_NAME")) != 0) ? + pp->value.atom : "Medium"; + if (val == 0) + val = "Medium"; + sprintf(np, "-%s", val); + np += strlen(np); + + /* + * Add the SLANT field. + */ + val = ((pp = bdf_get_font_property(font, "SLANT")) != 0) ? + pp->value.atom : "R"; + if (val == 0) + val = "R"; + sprintf(np, "-%s", val); + np += strlen(np); + + /* + * Add the SETWIDTH_NAME field. + */ + val = ((pp = bdf_get_font_property(font, "SETWIDTH_NAME")) != 0) ? + pp->value.atom : "Normal"; + if (val == 0) + val = "Normal"; + sprintf(np, "-%s", val); + np += strlen(np); + + /* + * Add the ADD_STYLE_NAME field. + */ + val = ((pp = bdf_get_font_property(font, "ADD_STYLE_NAME")) != 0) ? + pp->value.atom : ""; + if (val == 0) + val = ""; + sprintf(np, "-%s", val); + np += strlen(np); + + /* + * Add the PIXEL_SIZE field. + */ + if ((pp = bdf_get_font_property(font, "PIXEL_SIZE")) != 0) + sprintf(np, "-%ld", pp->value.int32); + else { + /* + * Determine the pixel size. + */ + dp = (double)(font->point_size * 10); + dr = (double) font->resolution_y; + pxsize = (unsigned short)(((dp * dr) / 722.7) + 0.5); + sprintf(np, "-%hd", pxsize); + } + np += strlen(np); + + /* + * Add the POINT_SIZE field. + */ + if ((pp = bdf_get_font_property(font, "POINT_SIZE")) != 0) + sprintf(np, "-%ld", pp->value.int32); + else + sprintf(np, "-%ld", font->point_size * 10); + np += strlen(np); + + /* + * Add the RESOLUTION_X field. + */ + if ((pp = bdf_get_font_property(font, "RESOLUTION_X")) != 0) + sprintf(np, "-%ld", pp->value.card32); + else + sprintf(np, "-%ld", font->resolution_x); + np += strlen(np); + + /* + * Add the RESOLUTION_Y field. + */ + if ((pp = bdf_get_font_property(font, "RESOLUTION_Y")) != 0) + sprintf(np, "-%ld", pp->value.card32); + else + sprintf(np, "-%ld", font->resolution_y); + np += strlen(np); + + /* + * Add the SPACING field. + */ + if ((pp = bdf_get_font_property(font, "SPACING")) != 0) + spacing = pp->value.atom[0]; + else { + spacing = 'P'; + switch (font->spacing) { + case BDF_PROPORTIONAL: + spacing = 'P'; + break; + case BDF_MONOWIDTH: + spacing = 'M'; + break; + case BDF_CHARCELL: + spacing = 'C'; + break; + } + } + sprintf(np, "-%c", spacing); + np += strlen(np); + + /* + * Add the AVERAGE_WIDTH field. + */ + if ((pp = bdf_get_font_property(font, "AVERAGE_WIDTH")) != 0) + sprintf(np, "-%ld", pp->value.int32); + else { + /* + * Determine the average width of all the glyphs in the font. + */ + width = 0; + for (i = 0, gp = font->unencoded; i < font->unencoded_used; i++, gp++) + width += gp->dwidth; + for (i = 0, gp = font->glyphs; i < font->glyphs_used; i++, gp++) + width += gp->dwidth; + + used = font->unencoded_used + font->glyphs_used; + if (used == 0) + awidth = font->bbx.width * 10; + else + awidth = (unsigned short)((((float) width) / + ((float) used)) * 10.0); + sprintf(np, "-%hd", awidth); + } + np += strlen(np); + + /* + * Add the CHARSET_REGISTRY field. + */ + val = ((pp = bdf_get_font_property(font, "CHARSET_REGISTRY")) != 0) ? + pp->value.atom : "FontSpecific"; + sprintf(np, "-%s", val); + np += strlen(np); + + /* + * Add the CHARSET_ENCODING field. + */ + val = ((pp = bdf_get_font_property(font, "CHARSET_ENCODING")) != 0) ? + pp->value.atom : "0"; + sprintf(np, "-%s", val); + np += strlen(np); + + len = (np - nbuf) + 1; + name = (char *) malloc(len); + (void) memcpy(name, nbuf, len); + return name; +} + +void +#ifdef __STDC__ +bdf_update_name_from_properties(bdf_font_t *font) +#else +bdf_update_name_from_properties(font) +bdf_font_t *font; +#endif +{ + unsigned long i; + bdf_property_t *p; + _bdf_list_t list; + char *np, name[128], nname[128]; + + if (font == 0 || bdf_has_xlfd_name(font) == 0) + return; + + (void) memset((char *) &list, 0, sizeof(_bdf_list_t)); + + /* + * Split the name into fields and shift out the first empty field. + * This assumes that the font has a name. + */ + i = (unsigned long) strlen(font->name); + (void) memcpy(name, font->name, i + 1); + _bdf_split("-", name, i, &list); + _bdf_shift(1, &list); + + /* + * Initialize the pointer to the new name and add the '-' prefix. + */ + np = nname; + *np++ = '-'; + *np = 0; + + for (i = 0; i < 14; i++) { + if ((p = bdf_get_font_property(font, xlfdfields[i])) != 0) { + /* + * The property exists, so add it to the new font name. + */ + switch (p->format) { + case BDF_ATOM: + if (p->value.atom != 0) + sprintf(np, "%s", p->value.atom); + break; + case BDF_CARDINAL: + sprintf(np, "%ld", p->value.card32); + break; + case BDF_INTEGER: + sprintf(np, "%ld", p->value.int32); + break; + } + } else + /* + * The property does not exist, so add the original value to the + * new font name. + */ + sprintf(np, "%s", list.field[i]); + np += strlen(np); + if (i + 1 < 14) { + *np++ = '-'; + *np = 0; + } + } + + /* + * Replace the existing font name with the new one. + */ + free(font->name); + i = (unsigned long)(strlen(nname) + 1); + font->name = (char *) malloc(i); + (void) memcpy(font->name, nname, i); + + /* + * Free up the list. + */ + if (list.size > 0) + free((char *) list.field); + + font->modified = 1; +} + +void +#ifdef __STDC__ +bdf_update_properties_from_name(bdf_font_t *font) +#else +bdf_update_properties_from_name(font) +bdf_font_t *font; +#endif +{ + unsigned long i; + bdf_property_t *p, prop; + _bdf_list_t list; + char name[128]; + + if (font == 0 || font->name == 0 || bdf_has_xlfd_name(font) == 0) + return; + + (void) memset((char *) &list, 0, sizeof(_bdf_list_t)); + + /* + * Split the name into fields and shift out the first empty field. + */ + i = (unsigned long) strlen(font->name); + (void) memcpy(name, font->name, i + 1); + _bdf_split("-", name, i, &list); + _bdf_shift(1, &list); + + for (i = 0; i < 14; i++) { + p = bdf_get_property(xlfdfields[i]); + prop.name = p->name; + prop.format = p->format; + switch (prop.format) { + case BDF_ATOM: + prop.value.atom = list.field[i]; + break; + case BDF_CARDINAL: + prop.value.card32 = _bdf_atoul(list.field[i], 0, 10); + break; + case BDF_INTEGER: + prop.value.int32 = _bdf_atol(list.field[i], 0, 10); + break; + } + bdf_add_font_property(font, &prop); + } + + /* + * Free up the list. + */ + if (list.size > 0) + free((char *) list.field); + + font->modified = 1; +} + +int +#ifdef __STDC__ +bdf_update_average_width(bdf_font_t *font) +#else +bdf_update_average_width(font) +bdf_font_t *font; +#endif +{ + int changed; + unsigned long i; + long oaw, awidth, used; + bdf_glyph_t *gp; + _bdf_list_t list; + bdf_property_t *pp, prop; + char *np, num[16], nbuf[128]; + + changed = 0; + + used = font->unencoded_used + font->glyphs_used; + if (used == 0) + awidth = font->bbx.width * 10; + else { + for (i = 0, awidth = 0, gp = font->unencoded; i < font->unencoded_used; + i++, gp++) + awidth += gp->dwidth; + for (i = 0, gp = font->glyphs; i < font->glyphs_used; i++, gp++) + awidth += gp->dwidth; + awidth = (long)((((double) awidth) / ((double) used)) * 10.0); + } + + /* + * Check to see if it is different than the average width in the font + * name. + */ + if (bdf_has_xlfd_name(font)) { + (void) memset((char *) &list, 0, sizeof(_bdf_list_t)); + i = (unsigned long) strlen(font->name); + (void) memcpy(nbuf, font->name, i + 1); + _bdf_split("-", nbuf, i, &list); + oaw = _bdf_atol(list.field[12], 0, 10); + if (oaw != awidth) { + /* + * Construct a new font name with the new average width. + */ + changed = 1; + sprintf(num, "%ld", awidth); + used = strlen(num) - strlen(list.field[12]); + if (used > 0) { + /* + * Resize the string used for the font name instead of + * creating a new one. + */ + used += i; + font->name = (char *) realloc(font->name, used); + } + + /* + * Copy the elements of the list back into the new font name. + */ + np = font->name; + *np++ = '-'; + for (i = 1; i < list.used; i++) { + if (i == 12) + strcpy(np, num); + else + strcpy(np, list.field[i]); + np += strlen(np); + if (i + 1 < list.used) + *np++ = '-'; + } + } + + /* + * Clear up any space allocated for the list. + */ + if (list.size > 0) + free((char *) list.field); + } + + /* + * Now check for the AVERAGE_WIDTH property. + */ + if ((pp = bdf_get_font_property(font, "AVERAGE_WIDTH")) != 0) { + if (pp->value.int32 != awidth) { + changed = 1; + pp->value.int32 = awidth; + } + } else { + /* + * Property doesn't exist yet, so add it. + */ + changed = 1; + prop.name = "AVERAGE_WIDTH"; + prop.format = BDF_INTEGER; + prop.value.int32 = awidth; + bdf_add_font_property(font, &prop); + } + + if (changed) + font->modified = 1; + + return changed; +} + +/* + * Change the font bounding box and return a non-zero number if this causes + * the font to get larger or smaller. + */ +int +#ifdef __STDC__ +bdf_set_font_bbx(bdf_font_t *font, bdf_metrics_t *metrics) +#else +bdf_set_font_bbx(font, metrics) +bdf_font_t *font; +bdf_metrics_t *metrics; +#endif +{ + int resize; + + resize = 0; + + if (font == 0 || metrics == 0) + return resize; + + resize = (font->bbx.width != metrics->width || + font->bbx.height != metrics->height) ? 1 : 0; + + font->bbx.width = metrics->width; + font->bbx.height = metrics->height; + font->bbx.x_offset = metrics->x_offset; + font->bbx.y_offset = metrics->y_offset; + font->bbx.ascent = metrics->ascent; + font->bbx.descent = metrics->descent; + + /* + * If the font is not proportional, then make sure the monowidth field is + * set to the font bounding box. + */ + if (font->spacing != BDF_PROPORTIONAL) + font->monowidth = font->bbx.width; + + return resize; +} + +static bdf_glyph_t * +#ifdef __STDC__ +_bdf_locate_glyph(bdf_font_t *font, long code, int unencoded) +#else +_bdf_locate_glyph(font, code, unencoded) +bdf_font_t *font; +long code; +int unencoded; +#endif +{ + long l, r, m, nc; + bdf_glyph_t *gl; + + if (code < 0 || font == 0) + return 0; + + if ((unencoded && font->unencoded_used == 0) || + font->glyphs_used == 0) + return 0; + + if (unencoded) { + gl = font->unencoded; + nc = font->unencoded_used; + } else { + gl = font->glyphs; + nc = font->glyphs_used; + } + for (l = m = 0, r = nc - 1; l < r;) { + m = (l + r) >> 1; + if (gl[m].encoding < code) + l = m + 1; + else if (gl[m].encoding > code) + r = m - 1; + else + break; + } + + /* + * Go back until we hit the beginning of the glyphs or until + * we find the glyph with a code less than the specified code. + */ + while (m > 0 && gl[m].encoding > code) + m--; + + /* + * Look forward if necessary. + */ + while (m < nc && gl[m].encoding < code) + m++; + + return (m < nc) ? &gl[m] : &gl[nc - 1]; +} + +int +#ifdef __STDC__ +bdf_translate_glyphs(bdf_font_t *font, short dx, short dy, long start, + long end, bdf_callback_t callback, void *data, + int unencoded) +#else +bdf_translate_glyphs(font, dx, dy, start, end, callback, data, unencoded) +bdf_font_t *font; +short dx, dy; +long start, end; +bdf_callback_t callback; +void *data; +int unencoded; +#endif +{ + int resize, diff; + bdf_glyph_t *gp, *sp, *ep; + bdf_callback_struct_t cb; + + if (font == 0 || (dx == 0 && dy == 0)) + return 0; + + if ((unencoded && font->unencoded_used == 0) || font->glyphs_used == 0) + return 0; + + /* + * Call the progress initialization callback. + */ + if (callback != 0) { + cb.reason = BDF_TRANSLATE_START; + cb.total = (end - start) + 1; + cb.current = 0; + (*callback)(&cb, data); + } + + /* + * Locate the first and last glyphs to be shifted. + */ + sp = _bdf_locate_glyph(font, start, unencoded); + ep = _bdf_locate_glyph(font, end, unencoded); + for (resize = 0, gp = sp; sp <= ep; sp++) { + /* + * Call the callback if one was provided. + */ + if (sp != gp && callback != 0) { + cb.reason = BDF_TRANSLATING; + cb.current = (sp->encoding - start) + 1; + (*callback)(&cb, data); + } + + /* + * Apply the X translation. + */ + if (dx != 0) { + sp->bbx.x_offset += dx; + diff = sp->bbx.x_offset - font->bbx.x_offset; + if (sp->bbx.x_offset < font->bbx.x_offset) { + font->bbx.x_offset = sp->bbx.x_offset; + font->bbx.width += MYABS(diff); + resize = 1; + } else if (sp->bbx.width + sp->bbx.x_offset > + font->bbx.width + font->bbx.x_offset) { + font->bbx.width += MYABS(diff); + resize = 1; + } + + /* + * Mark the glyph as modified appropriately. + */ + if (unencoded) + _bdf_set_glyph_modified(font->umod, sp->encoding); + else + _bdf_set_glyph_modified(font->nmod, sp->encoding); + } + + /* + * Apply the Y translation. + */ + if (dy != 0) { + sp->bbx.y_offset += dy; + sp->bbx.descent = -sp->bbx.y_offset; + sp->bbx.ascent = sp->bbx.height - sp->bbx.descent; + diff = sp->bbx.y_offset - font->bbx.y_offset; + if (sp->bbx.y_offset < font->bbx.y_offset) { + font->bbx.y_offset = sp->bbx.y_offset; + font->bbx.descent = -font->bbx.y_offset; + font->bbx.height += MYABS(diff); + resize = 1; + } else if (sp->bbx.ascent > font->bbx.ascent) { + font->bbx.ascent += MYABS(diff); + font->bbx.height += MYABS(diff); + resize = 1; + } + + /* + * Mark the glyph as modified appropriately. + */ + if (unencoded) + _bdf_set_glyph_modified(font->umod, sp->encoding); + else + _bdf_set_glyph_modified(font->nmod, sp->encoding); + } + } + + /* + * Call the callback one more time to make sure the client knows + * this is done. + */ + if (callback != 0 && cb.current < cb.total) { + cb.reason = BDF_TRANSLATING; + cb.current = cb.total; + (*callback)(&cb, data); + } + + if (resize) + font->modified = 1; + + return resize; +} + +static void +#ifdef __STDC__ +_bdf_resize_rotation(bdf_font_t *font, int mul90, short degrees, + bdf_glyph_t *glyph, bdf_bitmap_t *scratch, + unsigned short *width, unsigned short *height) +#else +_bdf_resize_rotation(font, mul90, degrees, glyph, scratch, width, height) +bdf_font_t *font; +int mul90; +short degrees; +bdf_glyph_t *glyph; +bdf_bitmap_t *scratch; +unsigned short *width, *height; +#endif +{ + unsigned short w, h, wd, ht, bytes; + short cx, cy, x1, y1, x2, y2; + double dx1, dy1, dx2, dy2; + + w = h = 0; + + cx = glyph->bbx.width >> 1; + cy = glyph->bbx.height >> 1; + + /* + * Rotate the lower left and upper right corners and check for a potential + * resize. + */ + x1 = 0; + y1 = glyph->bbx.height; + x2 = glyph->bbx.width; + y2 = 0; + + dx1 = (double)(x1 - cx); + dy1 = (double)(y1 - cy); + dx2 = (double)(x2 - cx); + dy2 = (double)(y2 - cx); + + if (mul90) { + x1 = cx + (short)((dx1 * _bdf_cos_tbl[degrees]) - + (dy1 * _bdf_sin_tbl[degrees])); + y1 = cy + (short)((dx1 * _bdf_sin_tbl[degrees]) + + (dy1 * _bdf_cos_tbl[degrees])); + x2 = cx + (short)((dx2 * _bdf_cos_tbl[degrees]) - + (dy2 * _bdf_sin_tbl[degrees])); + y2 = cy + (short)((dx2 * _bdf_sin_tbl[degrees]) + + (dy2 * _bdf_cos_tbl[degrees])); + } else { + x1 = cx + _bdf_ceiling((dx1 * _bdf_cos_tbl[degrees]) - + (dy1 * _bdf_sin_tbl[degrees])); + y1 = cy + _bdf_ceiling((dx1 * _bdf_sin_tbl[degrees]) + + (dy1 * _bdf_cos_tbl[degrees])); + x2 = cx + _bdf_ceiling((dx2 * _bdf_cos_tbl[degrees]) - + (dy2 * _bdf_sin_tbl[degrees])); + y2 = cy + _bdf_ceiling((dx2 * _bdf_sin_tbl[degrees]) + + (dy2 * _bdf_cos_tbl[degrees])); + } + + wd = MYABS(x2 - x1); + ht = MYABS(y2 - y1); + + w = MAX(wd, w); + h = MAX(ht, h); + + if (wd > font->bbx.width) + font->bbx.width += wd - font->bbx.width; + if (ht > font->bbx.height) { + font->bbx.ascent += ht - font->bbx.height; + font->bbx.height += ht - font->bbx.height; + } + + /* + * Rotate the upper left and lower right corners and check for a potential + * resize. + */ + x1 = 0; + y1 = 0; + x2 = glyph->bbx.width; + y2 = glyph->bbx.height; + + dx1 = (double)(x1 - cx); + dy1 = (double)(y1 - cy); + dx2 = (double)(x2 - cx); + dy2 = (double)(y2 - cx); + + if (mul90) { + x1 = cx + (short)((dx1 * _bdf_cos_tbl[degrees]) - + (dy1 * _bdf_sin_tbl[degrees])); + y1 = cy + (short)((dx1 * _bdf_sin_tbl[degrees]) + + (dy1 * _bdf_cos_tbl[degrees])); + x2 = cx + (short)((dx2 * _bdf_cos_tbl[degrees]) - + (dy2 * _bdf_sin_tbl[degrees])); + y2 = cy + (short)((dx2 * _bdf_sin_tbl[degrees]) + + (dy2 * _bdf_cos_tbl[degrees])); + } else { + x1 = cx + _bdf_ceiling((dx1 * _bdf_cos_tbl[degrees]) - + (dy1 * _bdf_sin_tbl[degrees])); + y1 = cy + _bdf_ceiling((dx1 * _bdf_sin_tbl[degrees]) + + (dy1 * _bdf_cos_tbl[degrees])); + x2 = cx + _bdf_ceiling((dx2 * _bdf_cos_tbl[degrees]) - + (dy2 * _bdf_sin_tbl[degrees])); + y2 = cy + _bdf_ceiling((dx2 * _bdf_sin_tbl[degrees]) + + (dy2 * _bdf_cos_tbl[degrees])); + } + + wd = MYABS(x2 - x1); + ht = MYABS(y2 - y1); + + w = MAX(wd, w); + h = MAX(ht, h); + + if (wd > font->bbx.width) + font->bbx.width += wd - font->bbx.width; + if (ht > font->bbx.height) { + font->bbx.ascent += ht - font->bbx.height; + font->bbx.height += ht - font->bbx.height; + } + + if (font->bbx.width > scratch->width || + font->bbx.height > scratch->height) { + scratch->width = MAX(font->bbx.width, scratch->width); + scratch->height = MAX(font->bbx.height, scratch->height); + bytes = (((font->bbx.width * font->bpp) + 7) >> 3) * font->bbx.height; + if (scratch->bytes == 0) + scratch->bitmap = (unsigned char *) malloc(bytes); + else + scratch->bitmap = (unsigned char *) + realloc((char *) scratch->bitmap, bytes); + scratch->bytes = bytes; + } + + /* + * Clear the bitmap. + */ + (void) memset((char *) scratch->bitmap, 0, scratch->bytes); + + /* + * Return the new glyph width and height. + */ + *width = w; + *height = h; +} + +int +#ifdef __STDC__ +bdf_rotate_glyphs(bdf_font_t *font, short degrees, long start, + long end, bdf_callback_t callback, void *data, + int unencoded) +#else +bdf_rotate_glyphs(font, degrees, start, end, callback, data, unencoded) +bdf_font_t *font; +short degrees; +long start, end; +bdf_callback_t callback; +void *data; +int unencoded; +#endif +{ + int mul90, bpr, sbpr; + unsigned short wd, ht, si, di, byte, col; + short x, y, cx, cy, nx, ny, ox, oy, shiftx, shifty; + bdf_glyph_t *gp, *sp, *ep; + unsigned char *masks; + double dx, dy; + bdf_bitmap_t scratch; + bdf_callback_struct_t cb; + + if (font == 0 || (unencoded && font->unencoded_used == 0) || + font->glyphs_used == 0) + return 0; + + while (degrees < 0) + degrees += 360; + while (degrees >= 360) + degrees -= 360; + + if (degrees == 0) + return 0; + + mul90 = ((degrees % 90) == 0) ? 1 : 0; + + masks = 0; + switch (font->bpp) { + case 1: + masks = onebpp; + break; + case 2: + masks = twobpp; + break; + case 4: + masks = fourbpp; + break; + } + + /* + * Initialize the scratch bitmap. + */ + (void) memset((char *) &scratch, 0, sizeof(bdf_bitmap_t)); + + /* + * Call the progress initialization callback. + */ + if (callback != 0) { + cb.reason = BDF_ROTATE_START; + cb.total = (end - start) + 1; + cb.current = 0; + (*callback)(&cb, data); + } + + sp = _bdf_locate_glyph(font, start, unencoded); + ep = _bdf_locate_glyph(font, end, unencoded); + for (gp = sp; sp <= ep; sp++) { + /* + * Call the callback if one was provided. + */ + if (sp != gp && callback != 0) { + cb.reason = BDF_ROTATING; + cb.current = (sp->encoding - start) + 1; + (*callback)(&cb, data); + } + + /* + * Resize the bitmap, adjust the font bounding box, and get the new + * glyph width and height. + */ + _bdf_resize_rotation(font, mul90, degrees, sp, &scratch, &wd, &ht); + + cx = sp->bbx.width >> 1; + cy = sp->bbx.height >> 1; + + shiftx = shifty = 0; + sbpr = ((wd * font->bpp) + 7) >> 3; + bpr = ((sp->bbx.width * font->bpp) + 7) >> 3; + for (y = 0; y < sp->bbx.height; y++) { + for (col = x = 0; x < sp->bbx.width; x++, col += font->bpp) { + si = (col & 7) / font->bpp; + byte = sp->bitmap[(y * bpr) + (col >> 3)] & masks[si]; + if (byte) { + dx = (double)(x - cx); + dy = (double)(y - cy); + if (mul90) { + nx = cx + (short)((dx * _bdf_cos_tbl[degrees]) - + (dy * _bdf_sin_tbl[degrees])); + ny = cy + (short)((dx * _bdf_sin_tbl[degrees]) + + (dy * _bdf_cos_tbl[degrees])); + } else { + nx = cx + _bdf_ceiling((dx * _bdf_cos_tbl[degrees]) - + (dy * _bdf_sin_tbl[degrees])); + ny = cy + _bdf_ceiling((dx * _bdf_sin_tbl[degrees]) + + (dy * _bdf_cos_tbl[degrees])); + } + if (nx < 0) { + shiftx = MIN(shiftx, nx); + nx += wd; + } else if (nx >= wd) { + ox = (nx - wd) + 1; + shiftx = MAX(shiftx, ox); + nx -= wd; + } + if (ny < 0) { + shifty = MIN(shifty, ny); + ny += ht; + } else if (ny >= ht) { + oy = (ny - ht) + 1; + shifty = MAX(shifty, oy); + ny -= ht; + } + nx *= font->bpp; + di = (nx & 7) / font->bpp; + if (di < si) + byte <<= (si - di) * font->bpp; + else if (di > si) + byte >>= (di - si) * font->bpp; + scratch.bitmap[(ny * sbpr) + (nx >> 3)] |= byte; + } + } + } + /* + * Resize the glyph bitmap if necessary. + */ + if (wd != sp->bbx.width || ht != sp->bbx.height) { + sp->bbx.width = wd; + sp->bbx.height = ht; + sp->bbx.ascent = ht - sp->bbx.descent; + sp->bytes = (((wd * font->bpp) + 7) >> 3) * ht; + sp->bitmap = (unsigned char *) + realloc((char *) sp->bitmap, sp->bytes); + } + (void) memset((char *) sp->bitmap, 0, sp->bytes); + + /* + * Copy the glyph from the scratch area to the glyph bitmap, + * adjusting for any shift values encountered. + */ + bpr = ((sp->bbx.width * font->bpp) + 7) >> 3; + for (y = 0; y < sp->bbx.height; y++) { + for (col = x = 0; x < sp->bbx.width; x++, col += font->bpp) { + si = (col & 7) / font->bpp; + byte = scratch.bitmap[(y * bpr) + (col >> 3)] & masks[si]; + if (byte) { + nx = x - shiftx; + ny = y - shifty; + if (nx < 0) + nx += sp->bbx.width; + else if (nx >= sp->bbx.width) + nx -= sp->bbx.width; + if (ny < 0) + ny += sp->bbx.height; + else if (ny >= sp->bbx.height) + ny -= sp->bbx.height; + nx *= font->bpp; + di = (nx & 7) / font->bpp; + if (di < si) + byte <<= (si - di) * font->bpp; + else if (di > si) + byte >>= (di - si) * font->bpp; + sp->bitmap[(ny * bpr) + (nx >> 3)] |= byte; + } + } + } + /* + * Mark the glyph as modified. + */ + if (unencoded) + _bdf_set_glyph_modified(font->umod, sp->encoding); + else + _bdf_set_glyph_modified(font->nmod, sp->encoding); + } + + /* + * Call the callback one more time to make sure the client knows + * this is done. + */ + if (callback != 0 && cb.current < cb.total) { + cb.reason = BDF_TRANSLATING; + cb.current = cb.total; + (*callback)(&cb, data); + } + + if (scratch.bytes > 0) + free((char *) scratch.bitmap); + + /* + * Rotations always change things, so just return a value indicating this. + */ + font->modified = 1; + return 1; +} + +static void +#ifdef __STDC__ +_bdf_resize_shear(bdf_font_t *font, int neg, short degrees, + bdf_glyph_t *glyph, bdf_bitmap_t *scratch, + unsigned short *width, unsigned short *height) +#else +_bdf_resize_shear(font, neg, degrees, glyph, scratch, width, height) +bdf_font_t *font; +int neg; +short degrees; +bdf_glyph_t *glyph; +bdf_bitmap_t *scratch; +unsigned short *width, *height; +#endif +{ + unsigned short wd, w, bytes; + short x1, y1, x2, y2; + + w = 0; + *height = glyph->bbx.height; + + /* + * Shear the lower left and upper right corners and check for a potential + * resize. + */ + x1 = 0; + y1 = glyph->bbx.height; + x2 = glyph->bbx.width; + y2 = 0; + + if (neg) { + x1 += (short)((double) y1 * _bdf_tan_tbl[degrees]); + x2 += (short)((double) y2 * _bdf_tan_tbl[degrees]); + } else { + x1 += (short)((double)(glyph->bbx.height - y1) * + _bdf_tan_tbl[degrees]); + x2 += (short)((double)(glyph->bbx.height - y2) * + _bdf_tan_tbl[degrees]); + } + + wd = MYABS(x2 - x1); + w = MAX(w, wd); + + if (wd > font->bbx.width) + font->bbx.width += wd - font->bbx.width; + + /* + * Shear the upper left and lower right corners and check for a potential + * resize. + */ + x1 = 0; + y1 = 0; + x2 = glyph->bbx.width; + y2 = glyph->bbx.height; + + if (neg) { + x1 += (short)((double) y1 * _bdf_tan_tbl[degrees]); + x2 += (short)((double) y2 * _bdf_tan_tbl[degrees]); + } else { + x1 += (short)((double)(glyph->bbx.height - y1) * + _bdf_tan_tbl[degrees]); + x2 += (short)((double)(glyph->bbx.height - y2) * + _bdf_tan_tbl[degrees]); + } + + wd = MYABS(x2 - x1); + w = MAX(w, wd); + + if (wd > font->bbx.width) + font->bbx.width += wd - font->bbx.width; + + if (font->bbx.width > scratch->width || + font->bbx.height > scratch->height) { + scratch->width = MAX(font->bbx.width, scratch->width); + scratch->height = MAX(font->bbx.height, scratch->height); + bytes = (((font->bbx.width * font->bpp) + 7) >> 3) * font->bbx.height; + if (scratch->bytes == 0) + scratch->bitmap = (unsigned char *) malloc(bytes); + else + scratch->bitmap = (unsigned char *) + realloc((char *) scratch->bitmap, bytes); + scratch->bytes = bytes; + } + + /* + * Clear the bitmap. + */ + (void) memset((char *) scratch->bitmap, 0, scratch->bytes); + + /* + * Return the new glyph width. + */ + *width = w; +} + +int +#ifdef __STDC__ +bdf_shear_glyphs(bdf_font_t *font, short degrees, long start, + long end, bdf_callback_t callback, void *data, + int unencoded) +#else +bdf_shear_glyphs(font, degrees, start, end, callback, data, unencoded) +bdf_font_t *font; +short degrees; +long start, end; +bdf_callback_t callback; +void *data; +int unencoded; +#endif +{ + int neg, bpr, sbpr; + unsigned short wd, ht, si, di, byte, col; + short x, y, nx, shiftx, ox; + bdf_glyph_t *gp, *sp, *ep; + unsigned char *masks; + bdf_bitmap_t scratch; + bdf_callback_struct_t cb; + + if (font == 0 || (unencoded && font->unencoded_used == 0) || + font->glyphs_used == 0) + return 0; + + if (degrees == 0 || degrees < -45 || degrees > 45) + return 0; + + if ((neg = (degrees < 0))) + degrees = -degrees; + + masks = 0; + switch (font->bpp) { + case 1: + masks = onebpp; + break; + case 2: + masks = twobpp; + break; + case 4: + masks = fourbpp; + break; + } + + /* + * Initialize the scratch bitmap. + */ + (void) memset((char *) &scratch, 0, sizeof(bdf_bitmap_t)); + + /* + * Call the progress initialization callback. + */ + if (callback != 0) { + cb.reason = BDF_SHEAR_START; + cb.total = (end - start) + 1; + cb.current = 0; + (*callback)(&cb, data); + } + + sp = _bdf_locate_glyph(font, start, unencoded); + ep = _bdf_locate_glyph(font, end, unencoded); + for (gp = sp; sp <= ep; sp++) { + /* + * Call the callback if one was provided. + */ + if (sp != gp && callback != 0) { + cb.reason = BDF_SHEARING; + cb.current = (sp->encoding - start) + 1; + (*callback)(&cb, data); + } + + /* + * Resize the bitmap, adjust the font bounding box, and get the new + * glyph width and height. + */ + _bdf_resize_shear(font, neg, degrees, sp, &scratch, &wd, &ht); + + shiftx = 0; + sbpr = ((wd * font->bpp) + 7) >> 3; + bpr = ((sp->bbx.width * font->bpp) + 7) >> 3; + for (y = 0; y < sp->bbx.height; y++) { + for (col = x = 0; x < sp->bbx.width; x++, col += font->bpp) { + si = (col & 7) / font->bpp; + byte = sp->bitmap[(y * bpr) + (col >> 3)] & masks[si]; + if (byte) { + if (neg) + nx = x + (short)((double) y * _bdf_tan_tbl[degrees]); + else + nx = x + (short)((double)(sp->bbx.height - y) * + _bdf_tan_tbl[degrees]); + + if (nx < 0) { + shiftx = MIN(shiftx, nx); + nx += wd; + } else if (nx >= wd) { + ox = (nx - wd) + 1; + shiftx = MAX(shiftx, ox); + nx -= wd; + } + nx *= font->bpp; + di = (nx & 7) / font->bpp; + if (di < si) + byte <<= (si - di) * font->bpp; + else if (di > si) + byte >>= (di - si) * font->bpp; + scratch.bitmap[(y * sbpr) + (nx >> 3)] |= byte; + } + } + } + /* + * Resize the glyph bitmap if necessary. + */ + if (wd != sp->bbx.width || ht != sp->bbx.height) { + sp->bbx.width = wd; + sp->bbx.height = ht; + sp->bbx.ascent = ht - sp->bbx.descent; + sp->bytes = (((wd * font->bpp) + 7) >> 3) * ht; + sp->bitmap = (unsigned char *) + realloc((char *) sp->bitmap, sp->bytes); + } + (void) memset((char *) sp->bitmap, 0, sp->bytes); + + /* + * Copy the glyph from the scratch area to the glyph bitmap, + * adjusting for any shift values encountered. + */ + bpr = ((sp->bbx.width * font->bpp) + 7) >> 3; + for (y = 0; y < sp->bbx.height; y++) { + for (col = x = 0; x < sp->bbx.width; x++, col += font->bpp) { + si = (col & 7) / font->bpp; + byte = scratch.bitmap[(y * bpr) + (col >> 3)] & masks[si]; + if (byte) { + nx = x - shiftx; + if (nx < 0) + nx += sp->bbx.width; + else if (nx >= sp->bbx.width) + nx -= sp->bbx.width; + nx *= font->bpp; + di = (nx & 7) / font->bpp; + if (di < si) + byte <<= (si - di) * font->bpp; + else if (di > si) + byte >>= (di - si) * font->bpp; + sp->bitmap[(y * bpr) + (nx >> 3)] |= byte; + } + } + } + /* + * Mark the glyph as modified. + */ + if (unencoded) + _bdf_set_glyph_modified(font->umod, sp->encoding); + else + _bdf_set_glyph_modified(font->nmod, sp->encoding); + } + + /* + * Call the callback one more time to make sure the client knows + * this is done. + */ + if (callback != 0 && cb.current < cb.total) { + cb.reason = BDF_TRANSLATING; + cb.current = cb.total; + (*callback)(&cb, data); + } + + if (scratch.bytes > 0) + free((char *) scratch.bitmap); + + /* + * Rotations always change things, so just return a value indicating this. + */ + font->modified = 1; + return 1; +} + +static void +#ifdef __STDC__ +_bdf_widen_by(bdf_font_t *f, bdf_glyph_t *g, bdf_bitmap_t *s, int n) +#else +_bdf_widen_by(f, g, s, n) +bdf_font_t *f; +bdf_glyph_t *g; +bdf_bitmap_t *s; +int n; +#endif +{ + int bytes, sbpr, dbpr, col; + short x, y, si, di; + unsigned char *bmap, *masks; + + masks = 0; + switch (f->bpp) { + case 1: + masks = onebpp; + break; + case 2: + masks = twobpp; + break; + case 4: + masks = fourbpp; + break; + } + + s->height = g->bbx.height; + s->width = g->bbx.width + n; + + bytes = (((s->width * f->bpp) + 7) >> 3) * s->height; + + if (s->bytes == 0) + s->bitmap = (unsigned char *) malloc(bytes); + else + s->bitmap = (unsigned char *) + realloc((char *) s->bitmap, bytes); + s->bytes = bytes; + + (void) memset((char *) s->bitmap, 0, s->bytes); + + /* + * Copy the glyph bitmap to the scratch area, and then swap the bitmaps. + */ + sbpr = ((g->bbx.width * f->bpp) + 7) >> 3; + dbpr = ((s->width * f->bpp) + 7) >> 3; + for (y = 0; y < g->bbx.height; y++) { + for (col = x = 0; x < g->bbx.width; x++, col += f->bpp) { + si = (col & 7) / f->bpp; + bytes = g->bitmap[(y * sbpr) + (col >> 3)] & masks[si]; + if (bytes) { + di = ((x * f->bpp) & 7) / f->bpp; + if (di < si) + bytes <<= (si - di) * f->bpp; + else if (di > si) + bytes >>= (di - si) * f->bpp; + s->bitmap[(y * dbpr) + (col >> 3)] |= bytes; + } + } + } + g->bbx.width = s->width; + + /* + * Swap the bytes and bitmap fields from the scratch area and the glyph. + */ + bytes = g->bytes; + g->bytes = s->bytes; + s->bytes = bytes; + + bmap = g->bitmap; + g->bitmap = s->bitmap; + s->bitmap = bmap; +} + +int +#ifdef __STDC__ +bdf_embolden_glyphs(bdf_font_t *font, long start, long end, + bdf_callback_t callback, void *data, int unencoded, + int *resize) +#else +bdf_embolden_glyphs(font, start, end, callback, data, unencoded, resize) +bdf_font_t *font; +long start, end; +bdf_callback_t callback; +void *data; +int unencoded, *resize; +#endif +{ + int mod, gmod, bpr; + short x, y; + unsigned short si, di, b1, b2, col; + unsigned char *masks; + bdf_glyph_t *gp, *sp, *ep; + bdf_bitmap_t scratch; + bdf_callback_struct_t cb; + + if (font == 0 || (unencoded && font->unencoded_used == 0) || + font->glyphs_used == 0) + return 0; + + /* + * Initialize the scratch bitmap which may be needed. + */ + (void) memset((char *) &scratch, 0, sizeof(bdf_bitmap_t)); + + mod = 0; + gp = 0; + + masks = 0; + switch (font->bpp) { + case 1: + masks = onebpp; + break; + case 2: + masks = twobpp; + break; + case 4: + masks = fourbpp; + break; + } + + /* + * Call the progress initialization callback. + */ + if (callback != 0) { + cb.reason = BDF_EMBOLDEN_START; + cb.total = (end - start) + 1; + cb.current = 0; + (*callback)(&cb, data); + } + + /* + * Initialize the resize flag for the caller. + */ + *resize = 0; + + sp = _bdf_locate_glyph(font, start, unencoded); + ep = _bdf_locate_glyph(font, end, unencoded); + for (; sp <= ep; sp++) { + /* + * Call the callback if one was provided. + */ + if (sp != gp && callback != 0) { + cb.reason = BDF_EMBOLDENING; + cb.current = (sp->encoding - start) + 1; + (*callback)(&cb, data); + } + + if (font->spacing == BDF_PROPORTIONAL || + (font->spacing == BDF_MONOWIDTH && + sp->bbx.width < font->bbx.width)) { + /* + * Only widen the glyph if it is within reason. + */ + _bdf_widen_by(font, sp, &scratch, 1); + + if (sp->bbx.width > font->bbx.width) { + /* + * Bump the font width up by the difference. + */ + font->bbx.width += sp->bbx.width - font->bbx.width; + *resize = 1; + } + } + + gmod = 0; + bpr = ((sp->bbx.width * font->bpp) + 7) >> 3; + for (y = 0; y < sp->bbx.height; y++) { + col = (sp->bbx.width - 1) * font->bpp; + for (x = sp->bbx.width - 1; x > 0; x--, col -= font->bpp) { + si = (col & 7) / font->bpp; + di = ((col - font->bpp) & 7) / font->bpp; + b1 = (x == sp->bbx.width) ? 0 : + sp->bitmap[(y * bpr) + (col >> 3)] & masks[si]; + b2 = sp->bitmap[(y * bpr) + ((col - font->bpp) >> 3)] & + masks[di]; + if (!b1 && b2) { + if (di < si) + b2 >>= (si - di) * font->bpp; + else if (di > si) + b2 <<= (di - si) * font->bpp; + sp->bitmap[(y * bpr) + (col >> 3)] |= b2; + gmod = mod = 1; + } + } + } + /* + * Mark the glyph as modified. + */ + if (gmod) { + if (unencoded) + _bdf_set_glyph_modified(font->umod, sp->encoding); + else + _bdf_set_glyph_modified(font->nmod, sp->encoding); + } + } + + /* + * Call the callback one more time to make sure the client knows + * this is done. + */ + if (callback != 0 && cb.current < cb.total) { + cb.reason = BDF_EMBOLDENING; + cb.current = cb.total; + (*callback)(&cb, data); + } + + /* + * Deallocate the scratch bitmap if necessary. + */ + if (scratch.bytes > 0) + free((char *) scratch.bitmap); + + font->modified = mod; + + return mod; +} + +static int _endian = 1; +static char *little_endian = (char *) & _endian; + +int +#ifdef __STDC__ +bdf_little_endian(void) +#else +bdf_little_endian() +#endif +{ + return *little_endian; +} -- cgit v1.2.3