summaryrefslogtreecommitdiff
path: root/firmware/loadfont.c
diff options
context:
space:
mode:
Diffstat (limited to 'firmware/loadfont.c')
-rw-r--r--firmware/loadfont.c212
1 files changed, 0 insertions, 212 deletions
diff --git a/firmware/loadfont.c b/firmware/loadfont.c
deleted file mode 100644
index e78f208b13..0000000000
--- a/firmware/loadfont.c
+++ /dev/null
@@ -1,212 +0,0 @@
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (c) 2002 by Greg Haerr <greg@censoft.com>
11 *
12 * All files in this archive are subject to the GNU General Public License.
13 * See the file COPYING in the source tree root for full license agreement.
14 *
15 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
16 * KIND, either express or implied.
17 *
18 ****************************************************************************/
19/*
20 * Load an rbf font, store in incore format.
21 */
22#include "config.h"
23
24#if defined(HAVE_LCD_BITMAP) || defined(SIMULATOR)
25
26#include <stdio.h>
27#include <string.h>
28#include "font.h"
29#include "file.h"
30
31#ifndef DEBUGF
32#include "debug.h"
33#endif
34
35#ifndef O_BINARY
36#define O_BINARY 0
37#endif
38
39/* static buffer allocation structures*/
40static unsigned char mbuf[MAX_FONT_SIZE];
41static unsigned char *freeptr = mbuf;
42static unsigned char *fileptr;
43static unsigned char *eofptr;
44
45static int
46READSHORT(unsigned short *sp)
47{
48 unsigned short s;
49
50 s = *fileptr++ & 0xff;
51 *sp = (*fileptr++ << 8) | s;
52 return (fileptr <= eofptr);
53}
54
55static int
56READLONG(unsigned long *lp)
57{
58 unsigned long l;
59
60 l = *fileptr++ & 0xff;
61 l |= *fileptr++ << 8;
62 l |= *fileptr++ << 16;
63 *lp = (*fileptr++ << 24) | l;
64 return (fileptr <= eofptr);
65}
66
67/* read count bytes*/
68static int
69READSTR(char *buf, int count)
70{
71 int n = count;
72
73 while (--n >= 0)
74 *buf++ = *fileptr++;
75 return (fileptr <= eofptr)? count: 0;
76}
77
78/* read totlen bytes, return NUL terminated string*/
79/* may write 1 past buf[totlen]; removes blank pad*/
80static int
81READSTRPAD(char *buf, int totlen)
82{
83 char *p = buf;
84 int n = totlen;
85
86 while (--n >= 0)
87 *p++ = *fileptr++;
88 if (fileptr > eofptr)
89 return 0;
90
91 p = &buf[totlen];
92 *p-- = 0;
93 while (*p == ' ' && p >= buf)
94 *p-- = '\0';
95 return totlen;
96}
97
98/* read and load font into incore font structure*/
99PMWCFONT
100rbf_load_font(char *path, PMWCFONT pf)
101{
102 int fd, filesize;
103 unsigned short maxwidth, height, ascent, pad;
104 unsigned long firstchar, defaultchar, size;
105 unsigned long i, nbits, noffset, nwidth;
106 char version[4+1];
107 char copyright[256+1];
108
109 memset(pf, 0, sizeof(MWCFONT));
110
111 /* open and read entire font file*/
112 fd = open(path, O_RDONLY|O_BINARY);
113 if (fd < 0) {
114 DEBUGF("Can't open font: %s\n", path);
115 return NULL;
116 }
117freeptr = (unsigned char *)(((int)mbuf + 3) & ~3);
118 fileptr = freeptr;
119 filesize = read(fd, fileptr, MAX_FONT_SIZE);
120 eofptr = fileptr + filesize;
121 //freeptr += filesize;
122 //freeptr = (unsigned char *)(freeptr + 3) & ~3; /* pad freeptr*/
123 close(fd);
124 if (filesize == MAX_FONT_SIZE) {
125 DEBUGF("Font %s too large: %d\n", path, filesize);
126 return NULL;
127 }
128
129 /* read magic and version #*/
130 memset(version, 0, sizeof(version));
131 if (READSTR(version, 4) != 4)
132 return NULL;
133 if (strcmp(version, VERSION) != 0)
134 return NULL;
135
136 /* internal font name*/
137 pf->name = fileptr;
138 if (READSTRPAD(pf->name, 64) != 64)
139 return NULL;
140
141 /* copyright, not currently stored*/
142 if (READSTRPAD(copyright, 256) != 256)
143 return NULL;
144
145 /* font info*/
146 if (!READSHORT(&maxwidth))
147 return NULL;
148 pf->maxwidth = maxwidth;
149 if (!READSHORT(&height))
150 return NULL;
151 pf->height = height;
152 if (!READSHORT(&ascent))
153 return NULL;
154 pf->ascent = ascent;
155 if (!READSHORT(&pad))
156 return NULL;
157 if (!READLONG(&firstchar))
158 return NULL;
159 pf->firstchar = firstchar;
160 if (!READLONG(&defaultchar))
161 return NULL;
162 pf->defaultchar = defaultchar;
163 if (!READLONG(&size))
164 return NULL;
165 pf->size = size;
166
167 /* get variable font data sizes*/
168 /* # words of MWIMAGEBITS*/
169 if (!READLONG(&nbits))
170 return NULL;
171 pf->bits_size = nbits;
172
173 /* # longs of offset*/
174 if (!READLONG(&noffset))
175 return NULL;
176
177 /* # bytes of width*/
178 if (!READLONG(&nwidth))
179 return NULL;
180
181 /* variable font data*/
182 pf->bits = (MWIMAGEBITS *)fileptr;
183 for (i=0; i<nbits; ++i)
184 if (!READSHORT(&pf->bits[i]))
185 return NULL;
186 /* pad to longword boundary*/
187 fileptr = (unsigned char *)(((int)fileptr + 3) & ~3);
188
189 if (noffset) {
190 pf->offset = (unsigned long *)fileptr;
191 for (i=0; i<noffset; ++i)
192 if (!READLONG(&pf->offset[i]))
193 return NULL;
194 } else pf->offset = NULL;
195
196 if (nwidth) {
197 pf->width = (unsigned char *)fileptr;
198 fileptr += nwidth*sizeof(unsigned char);
199 } else pf->width = NULL;
200
201 if (fileptr > eofptr)
202 return NULL;
203 return pf; /* success!*/
204}
205#endif /* HAVE_LCD_BITMAP */
206
207/* -----------------------------------------------------------------
208 * local variables:
209 * eval: (load-file "rockbox-mode.el")
210 * vim: et sw=4 ts=8 sts=4 tw=78
211 * end:
212 */
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-25 06:36:57 +0000