1 /* ScummVM Tools
2 *
3 * ScummVM Tools is the legal property of its developers, whose
4 * names are too numerous to list here. Please refer to the
5 * COPYRIGHT file distributed with this source distribution.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 */
21
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include <string.h>
25 #include <sciresource.h>
26 #include <resource.h>
27 #include <sys/types.h>
28 #include <sys/stat.h>
29
30 #define COPY_BLOCK_SIZE 512
31
32 unsigned short *resource_ids = NULL;
33
34 void
help()35 help() {
36 printf("Usage:\n\tscipack <file_0> ... <file_n>\n"
37 "\nBuilds an uncompressed SCI0 resource.000 and a resource.map\n");
38 }
39
40 int /* Returns resource ID on success, -1 on error */
test_file(char * filename)41 test_file(char *filename) {
42 char *dot = strchr(filename, '.');
43 char *endptr;
44 FILE *f;
45 int res_type, res_index;
46
47 if (!dot) {
48 fprintf(stderr, "Must contain a period");
49 return -1;
50 }
51
52 *dot = 0;
53
54 for (res_type = 0; res_type < sci_invalid_resource
55 && scumm_stricmp(filename, sci_resource_types[res_type]); res_type++);
56
57 *dot = '.';
58
59 if (res_type == sci_invalid_resource) {
60 fprintf(stderr, "Invalid resource type");
61 return -1;
62 }
63
64 ++dot;
65 res_index = strtol(dot, &endptr, 10);
66
67 if (!*dot || *endptr) {
68 fprintf(stderr, "Invalid resource index");
69 return -1;
70 }
71
72 if (res_index < 0) {
73 fprintf(stderr, "Negative resource index");
74 return -1;
75 }
76
77 if (res_index >= 1000) {
78 fprintf(stderr, "Resource index too large");
79 return -1;
80 }
81
82 f = fopen(filename, "r");
83 if (!f) {
84 perror("While asserting file");
85 return -1;
86 }
87 fclose(f);
88
89 return (res_type << 11) | res_index;
90 }
91
92 int
build_file_ids(int count,char ** names)93 build_file_ids(int count, char **names) {
94 int i;
95 int error = 0;
96
97 resource_ids = (unsigned short*) malloc(sizeof(unsigned short) * count);
98
99 for (i = 0; i < count; i++) {
100 int id = test_file(names[i]);
101 if (id < 0) {
102 error = -1;
103 fprintf(stderr, ": %s\n", names[i]);
104 } else resource_ids[i] = id;
105 }
106
107 return error;
108 }
109
110
111 static inline void
write_uint16(int fd,unsigned int uint)112 write_uint16(int fd, unsigned int uint) {
113 unsigned char upper = (uint >> 8) & 0xff;
114 unsigned char lower = (uint) & 0xff;
115
116 if ((write(fd, &upper, 1) < 1)
117 || (write(fd, &lower, 1) < 1)) {
118 perror("While writing");
119 exit(1);
120 }
121 }
122
123 int
write_files(int count,char ** names)124 write_files(int count, char **names) {
125 int resource_000, resource_map;
126 int i;
127
128 resource_000 = creat("resource.000", 0644);
129 if (resource_000 < 0) {
130 perror("While creating 'resource.000'");
131 return -1;
132 }
133
134 resource_map = creat("resource.map", 0644);
135 if (resource_map < 0) {
136 close(resource_000);
137 perror("While creating 'resource.map'");
138 return -1;
139 }
140
141 for (i = 0; i < count; i++) {
142 int fd = open(names[i], O_RDONLY);
143 struct stat fdstat;
144 int fdsize;
145 unsigned char buf[512];
146 int j;
147 long offset = lseek(resource_000, SEEK_CUR, 0);
148 int top_offset = (offset >> 16) & 0xffff;
149 int bot_offset = offset & 0xffff;
150
151 if (fd < 0) {
152 close(resource_000);
153 close(resource_map);
154 perror(names[i]);
155 return -1;
156 }
157 fstat(fd, &fdstat);
158 fdsize = fdstat.st_size;
159
160 write_uint16(resource_000, resource_ids[i]);
161 write_uint16(resource_000, fdsize);
162 write_uint16(resource_000, fdsize);
163 write_uint16(resource_000, 0);
164
165 do {
166 j = read_noThrow(fd, buf, COPY_BLOCK_SIZE);
167 write(resource_000, buf, j);
168 } while (j == COPY_BLOCK_SIZE);
169 close(fd);
170
171 write_uint16(resource_map, resource_ids[i]);
172 write_uint16(resource_map, bot_offset);
173 write_uint16(resource_map, top_offset);
174 }
175
176 /* Terminate resource 000 */
177 write_uint16(resource_000, 0);
178
179 /* Terminate resource map */
180 write_uint16(resource_map, 0xffff);
181 write_uint16(resource_map, 0xffff);
182
183 close(resource_000);
184 close(resource_map);
185 }
186
187
188 int
main(int argc,char ** argv)189 main(int argc, char **argv) {
190 printf("scipack.c Copyright (C) 2002 Christoph Reichenbach\n"
191 "This program is FREE SOFTWARE. You may copy it and/or re-distribute it\n"
192 "according to the terms of the GNU General Public License. See LICENSING\n"
193 "for details.\n");
194
195 if (argc < 1)
196 help();
197
198 if (build_file_ids(argc - 1, argv + 1))
199 return -1;
200
201 if (write_files(argc - 1, argv + 1))
202 return -1;
203 free(resource_ids);
204 }
205