diff options
Diffstat (limited to 'engines/sci/tools/scipack.c')
| -rw-r--r-- | engines/sci/tools/scipack.c | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/engines/sci/tools/scipack.c b/engines/sci/tools/scipack.c new file mode 100644 index 0000000000..a5b7a8d8a1 --- /dev/null +++ b/engines/sci/tools/scipack.c @@ -0,0 +1,217 @@ +/*************************************************************************** + scipack.c Copyright (C) 2002 Christoph Reichenbach + + + This program may be modified and copied freely according to the terms of + the GNU general public license (GPL), as long as the above copyright + notice and the licensing information contained herein are preserved. + + Please refer to www.gnu.org for licensing details. + + This work is provided AS IS, without warranty of any kind, expressed or + implied, including but not limited to the warranties of merchantibility, + noninfringement, and fitness for a specific purpose. The author will not + be held liable for any damage caused by this work or derivatives of it. + + By using this source code, you agree to the licensing terms as stated + above. + + + Please contact the maintainer for bug reports or inquiries. + + Current Maintainer: + + Christoph Reichenbach (CR) <jameson@linuxgames.com> + +***************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sciresource.h> +#include <resource.h> +#include <sys/types.h> +#include <sys/stat.h> +#ifdef HAVE_UNISTD_H +# include <unistd.h> +#endif + +#define COPY_BLOCK_SIZE 512 + +unsigned short *resource_ids = NULL; + +void +help() +{ + printf("Usage:\n\tscipack <file_0> ... <file_n>\n" + "\nBuilds an uncompressed SCI0 resource.000 and a resource.map\n"); +} + +int /* Returns resource ID on success, -1 on error */ +test_file(char *filename) +{ + char *dot = strchr(filename, '.'); + char *endptr; + FILE *f; + int res_type, res_index; + + if (!dot) { + fprintf(stderr, "Must contain a period"); + return -1; + } + + *dot = 0; + + for (res_type = 0; res_type < sci_invalid_resource + && strcasecmp(filename, sci_resource_types[res_type]); res_type++); + + *dot = '.'; + + if (res_type == sci_invalid_resource) { + fprintf(stderr, "Invalid resource type"); + return -1; + } + + ++dot; + res_index = strtol(dot, &endptr, 10); + + if (!*dot || *endptr) { + fprintf(stderr, "Invalid resource index"); + return -1; + } + + if (res_index < 0) { + fprintf(stderr, "Negative resource index"); + return -1; + } + + if (res_index >= 1000) { + fprintf(stderr, "Resource index too large"); + return -1; + } + + f = fopen(filename, "r"); + if (!f) { + perror("While asserting file"); + return -1; + } + fclose(f); + + return (res_type << 11) | res_index; +} + +int +build_file_ids(int count, char **names) +{ + int i; + int error = 0; + + resource_ids = (unsigned short*) malloc(sizeof(unsigned short) * count); + + for (i = 0; i < count; i++) { + int id = test_file(names[i]); + if (id < 0) { + error = -1; + fprintf(stderr, ": %s\n", names[i]); + } + else resource_ids[i] = id; + } + + return error; +} + + +static inline void +write_uint16(int fd, unsigned int uint) +{ + unsigned char upper = (uint >> 8) & 0xff; + unsigned char lower = (uint) & 0xff; + + if ((write(fd, &upper, 1) < 1) + || (write(fd, &lower, 1) < 1)) { + perror("While writing"); + exit(1); + } +} + +int +write_files(int count, char **names) +{ + int resource_000, resource_map; + int i; + + resource_000 = creat("resource.000", 0644); + if (resource_000 < 0) { + perror("While creating 'resource.000'"); + return -1; + } + + resource_map = creat("resource.map", 0644); + if (resource_map < 0) { + perror("While creating 'resource.map'"); + return -1; + } + + for (i = 0; i < count; i++) { + int fd = open(names[i], O_RDONLY); + struct stat fdstat; + int fdsize; + unsigned char buf[512]; + int j; + long offset = lseek(resource_000, SEEK_CUR, 0); + int top_offset = (offset >> 16) & 0xffff; + int bot_offset = offset & 0xffff; + + if (fd < 0) { + perror(names[i]); + return -1; + } + fstat(fd, &fdstat); + fdsize = fdstat.st_size; + + write_uint16(resource_000, resource_ids[i]); + write_uint16(resource_000, fdsize); + write_uint16(resource_000, fdsize); + write_uint16(resource_000, 0); + + do { + j = read(fd, buf, COPY_BLOCK_SIZE); + write(resource_000, buf, j); + } while (j == COPY_BLOCK_SIZE); + close(fd); + + write_uint16(resource_map, resource_ids[i]); + write_uint16(resource_map, bot_offset); + write_uint16(resource_map, top_offset); + } + + /* Terminate resource 000 */ + write_uint16(resource_000, 0); + + /* Terminate resource map */ + write_uint16(resource_map, 0xffff); + write_uint16(resource_map, 0xffff); + + close(resource_000); + close(resource_map); +} + + +int +main(int argc, char **argv) +{ + printf("scipack.c Copyright (C) 2002 Christoph Reichenbach\n" + "This program is FREE SOFTWARE. You may copy it and/or re-distribute it\n" + "according to the terms of the GNU General Public License. See LICENSING\n" + "for details.\n"); + + if (argc < 1) + help(); + + if (build_file_ids(argc - 1, argv + 1)) + return -1; + + if (write_files(argc - 1, argv + 1)) + return -1; + free(resource_ids); +} |