2 * Builtin dlls resource support
4 * Copyright 2000 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
29 #ifdef HAVE_SYS_TYPES_H
30 # include <sys/types.h>
33 #ifdef HAVE_SYS_STAT_H
34 # include <sys/stat.h>
36 #ifdef HAVE_SYS_MMAN_H
44 #define ALIGNMENT 2 /* alignment for resource data */
45 #define ALIGN_MASK ((1 << ALIGNMENT) - 1)
47 /* Unicode string or integer id */
50 char *str; /* ptr to string */
51 WORD id; /* integer id if str is NULL */
54 /* descriptor for a resource */
57 struct string_id type;
58 struct string_id name;
60 unsigned int data_size;
64 /* type level of the resource tree */
67 const struct string_id *type; /* type name */
68 const struct resource *res; /* first resource of this type */
69 unsigned int nb_names; /* total number of names */
72 /* top level of the resource tree */
75 struct res_type *types; /* types array */
76 unsigned int nb_types; /* total number of types */
79 static const unsigned char *file_pos; /* current position in resource file */
80 static const unsigned char *file_end; /* end of resource file */
81 static const char *file_name; /* current resource file name */
84 inline static struct resource *add_resource( DLLSPEC *spec )
86 spec->resources = xrealloc( spec->resources, (spec->nb_resources + 1) * sizeof(*spec->resources) );
87 return &spec->resources[spec->nb_resources++];
90 static struct res_type *add_type( struct res_tree *tree, const struct resource *res )
92 struct res_type *type;
93 tree->types = xrealloc( tree->types, (tree->nb_types + 1) * sizeof(*tree->types) );
94 type = &tree->types[tree->nb_types++];
95 type->type = &res->type;
101 /* get the next byte from the current resource file */
102 static unsigned char get_byte(void)
104 unsigned char ret = *file_pos++;
105 if (file_pos > file_end) fatal_error( "%s is a truncated/corrupted file\n", file_name );
109 /* get the next word from the current resource file */
110 static WORD get_word(void)
112 /* might not be aligned */
113 #ifdef WORDS_BIGENDIAN
114 unsigned char high = get_byte();
115 unsigned char low = get_byte();
117 unsigned char low = get_byte();
118 unsigned char high = get_byte();
120 return low | (high << 8);
123 /* get the next dword from the current resource file */
124 static DWORD get_dword(void)
126 #ifdef WORDS_BIGENDIAN
127 WORD high = get_word();
128 WORD low = get_word();
130 WORD low = get_word();
131 WORD high = get_word();
133 return low | (high << 16);
136 /* get a string from the current resource file */
137 static void get_string( struct string_id *str )
139 if (*file_pos == 0xff)
141 get_byte(); /* skip the 0xff */
143 str->id = get_word();
147 char *p = xmalloc( (strlen(file_pos) + 1) );
150 while ((*p++ = get_byte()));
154 /* load the next resource from the current file */
155 static void load_next_resource( DLLSPEC *spec )
157 struct resource *res = add_resource( spec );
159 get_string( &res->type );
160 get_string( &res->name );
161 res->memopt = get_word();
162 res->data_size = get_dword();
163 res->data = file_pos;
164 file_pos += res->data_size;
165 if (file_pos > file_end) fatal_error( "%s is a truncated/corrupted file\n", file_name );
168 /* load a Win16 .res file */
169 void load_res16_file( const char *name, DLLSPEC *spec )
175 if ((fd = open( name, O_RDONLY )) == -1) fatal_perror( "Cannot open %s", name );
176 if ((fstat( fd, &st ) == -1)) fatal_perror( "Cannot stat %s", name );
177 if (!st.st_size) fatal_error( "%s is an empty file\n", name );
179 if ((base = mmap( NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0 )) == (void*)-1)
180 #endif /* HAVE_MMAP */
182 base = xmalloc( st.st_size );
183 if (read( fd, base, st.st_size ) != st.st_size)
184 fatal_error( "Cannot read %s\n", name );
189 file_end = file_pos + st.st_size;
190 while (file_pos < file_end) load_next_resource( spec );
193 /* compare two strings/ids */
194 static int cmp_string( const struct string_id *str1, const struct string_id *str2 )
198 if (!str2->str) return str1->id - str2->id;
199 return 1; /* an id compares larger than a string */
201 if (!str2->str) return -1;
202 return strcasecmp( str1->str, str2->str );
205 /* compare two resources for sorting the resource directory */
206 /* resources are stored first by type, then by name */
207 static int cmp_res( const void *ptr1, const void *ptr2 )
209 const struct resource *res1 = ptr1;
210 const struct resource *res2 = ptr2;
213 if ((ret = cmp_string( &res1->type, &res2->type ))) return ret;
214 return cmp_string( &res1->name, &res2->name );
217 /* build the 2-level (type,name) resource tree */
218 static struct res_tree *build_resource_tree( DLLSPEC *spec )
221 struct res_tree *tree;
222 struct res_type *type = NULL;
224 qsort( spec->resources, spec->nb_resources, sizeof(*spec->resources), cmp_res );
226 tree = xmalloc( sizeof(*tree) );
230 for (i = 0; i < spec->nb_resources; i++)
232 if (!i || cmp_string( &spec->resources[i].type, &spec->resources[i-1].type )) /* new type */
233 type = add_type( tree, &spec->resources[i] );
239 /* free the resource tree */
240 static void free_resource_tree( struct res_tree *tree )
246 inline static void put_byte( unsigned char **buffer, unsigned char val )
251 inline static void put_word( unsigned char **buffer, WORD val )
253 #ifdef WORDS_BIGENDIAN
254 put_byte( buffer, HIBYTE(val) );
255 put_byte( buffer, LOBYTE(val) );
257 put_byte( buffer, LOBYTE(val) );
258 put_byte( buffer, HIBYTE(val) );
262 /* output a string preceded by its length */
263 static void output_string( unsigned char **buffer, const char *str )
265 int len = strlen(str);
266 put_byte( buffer, len );
267 while (len--) put_byte( buffer, *str++ );
270 /* output the resource data */
271 int output_res16_data( FILE *outfile, DLLSPEC *spec )
273 const struct resource *res;
274 unsigned char *buffer, *p;
278 if (!spec->nb_resources) return 0;
280 for (i = total = 0, res = spec->resources; i < spec->nb_resources; i++, res++)
281 total += (res->data_size + ALIGN_MASK) & ~ALIGN_MASK;
283 buffer = p = xmalloc( total );
284 for (i = 0, res = spec->resources; i < spec->nb_resources; i++, res++)
286 memcpy( p, res->data, res->data_size );
288 while ((int)p & ALIGN_MASK) *p++ = 0;
290 dump_bytes( outfile, buffer, total, "resource_data", 1 );
295 /* output the resource definitions */
296 int output_res16_directory( unsigned char *buffer, DLLSPEC *spec )
298 int offset, res_offset = 0;
300 struct res_tree *tree;
301 const struct res_type *type;
302 const struct resource *res;
303 unsigned char *start = buffer;
305 tree = build_resource_tree( spec );
307 offset = 4; /* alignment + terminator */
308 offset += tree->nb_types * 8; /* typeinfo structures */
309 offset += spec->nb_resources * 12; /* nameinfo structures */
311 put_word( &buffer, ALIGNMENT );
313 /* type and name structures */
315 for (i = 0, type = tree->types; i < tree->nb_types; i++, type++)
319 put_word( &buffer, offset );
320 offset += strlen(type->type->str) + 1;
323 put_word( &buffer, type->type->id | 0x8000 );
325 put_word( &buffer, type->nb_names );
326 put_word( &buffer, 0 );
327 put_word( &buffer, 0 );
329 for (j = 0, res = type->res; j < type->nb_names; j++, res++)
331 put_word( &buffer, res_offset >> ALIGNMENT );
332 put_word( &buffer, (res->data_size + ALIGN_MASK) >> ALIGNMENT );
333 put_word( &buffer, res->memopt );
336 put_word( &buffer, offset );
337 offset += strlen(res->name.str) + 1;
340 put_word( &buffer, res->name.id | 0x8000 );
341 put_word( &buffer, 0 );
342 put_word( &buffer, 0 );
343 res_offset += (res->data_size + ALIGN_MASK) & ~ALIGN_MASK;
346 put_word( &buffer, 0 ); /* terminator */
350 for (i = 0, type = tree->types; i < tree->nb_types; i++, type++)
352 if (type->type->str) output_string( &buffer, type->type->str );
353 for (j = 0, res = type->res; j < type->nb_names; j++, res++)
355 if (res->name.str) output_string( &buffer, res->name.str );
358 put_byte( &buffer, 0 ); /* names terminator */
359 if ((buffer - start) & 1) put_byte( &buffer, 0 ); /* align on word boundary */
361 free_resource_tree( tree );
362 return buffer - start;