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/*
MACLIB: A companion library to SDL for working with Macintosh (tm) data
Copyright (C) 1997 Sam Lantinga
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
5635-34 Springhouse Dr.
Pleasanton, CA 94588 (USA)
slouken@devolution.com
*/
#ifndef _Mac_Resource_h
#define _Mac_Resource_h
/* These are routines to parse a Macintosh Resource Fork file
-Sam Lantinga (slouken@devolution.com)
Note: Most of the info in this file came from "Inside Macintosh"
*/
#include <stdio.h>
#include <stdarg.h>
/* The actual resources in the resource fork */
typedef struct {
Uint32 length;
Uint8 *data;
} Mac_ResData;
class Mac_Resource {
public:
Mac_Resource(const char *filename);
~Mac_Resource();
/* Create a NULL terminated list of resource types in this file */
char **Types(void);
/* Return the number of resources of the given type */
Uint16 NumResources(const char *res_type);
/* Create a 0xFFFF terminated list of resource ids for a type */
Uint16 *ResourceIDs(const char *res_type);
/* Return a resource of a certain type and id. These resources
are deleted automatically when Mac_Resource object is deleted.
*/
char *ResourceName(const char *res_type, Uint16 id);
Mac_ResData *Resource(const char *res_type, Uint16 id);
Mac_ResData *Resource(const char *res_type, const char *name);
/* This returns a more detailed error message, or NULL */
char *Error(void) {
return(errstr);
}
protected:
friend int Res_cmp(const void *A, const void *B);
/* Offset of Resource data in resource fork */
Uint32 res_offset;
Uint16 num_types; /* Number of types of resources */
struct resource {
char *name;
Uint16 id;
Uint32 offset;
Mac_ResData *data;
};
struct resource_list {
char type[5]; /* Four character type + nul */
Uint16 count;
struct resource *list;
} *Resources;
FILE *filep; /* The Resource Fork File */
Uint32 base; /* The offset of the rsrc */
/* Useful for getting error feedback */
void error(char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
vsnprintf(errbuf, BUFSIZ, fmt, ap);
va_end(ap);
errstr = errbuf;
}
char *errstr;
char errbuf[BUFSIZ];
};
#endif /* _Mac_Resource_h */
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