load.h

#ifndef _load_h
#define _load_h

#include <stdlib.h>
#include <string.h>
#ifdef WIN32  // For access() prototype
#include <io.h>
#define F_OK	0
#define access	_access
#else
#ifdef macintosh
static inline char *strdup(const char *str)
{
	char *newstr;
	
	newstr = (char *)malloc(strlen(str)+1);
	if ( newstr ) {
		strcpy(newstr, str);
	}
	return(newstr);
}
#endif
#if defined(unix) || defined(__MACH__) || defined(__BEOS__)
#include <unistd.h>
#endif
#endif /* WIN32 */

#include "SDL_FrameBuf.h"

/* Pathing stuff for the different operating systems */
#if defined(unix) || defined(__MACH__) || defined(__EMSCRIPTEN__)
#define DIR_SEP	"/"
#define CUR_DIR	"."
#elif defined(WIN32)
#define DIR_SEP	"/"
#define CUR_DIR	"."
#elif defined(__BEOS__)
#define DIR_SEP	"/"
#define CUR_DIR	"."
#elif defined(macintosh)
#define DIR_SEP	":"
#define CUR_DIR	":"
#else
#error Unspecified platform!
#endif /* Choose your platform */

#ifndef LIBDIR
#if defined(unix) || defined(__MACH__) || defined(__EMSCRIPTEN__)
#define LIBDIR	"/Maelstrom"
#else
#define LIBDIR	CUR_DIR
#endif
#endif /* !defined(LIBDIR) */

class LibPath {

private:
	static char *exepath;

public:
	static void SetExePath(const char *exe) {
		char *exep;

		exepath = strdup(exe);
		for ( exep = exepath+strlen(exe); exep > exepath; --exep ) {
			if ( (*exep == *DIR_SEP) || (*exep == '\\') ) {
				break;
			}
		}
		if ( exep > exepath ) {
			*exep = '\0';
		} else {
			strcpy(exepath, CUR_DIR);
		}
	}

public:
	LibPath() {
		path = NULL;
	}
	LibPath(char *file) {
		path = NULL;
		Path(file);
	}
	~LibPath() {
		if ( path ) delete[] path;
	}

	const char *Path(const char *filename) {
		const char *directory;

		directory = getenv("MAELSTROM_LIB");
		if ( directory == NULL ) {
			directory = LIBDIR;
		}

		if ( path != NULL )
			delete[] path;
		path = new char[strlen(directory)+1+strlen(filename)+1];
		if ( strcmp(directory, DIR_SEP) == 0 ) {
			sprintf(path, DIR_SEP"%s", filename);
		} else {
			sprintf(path, "%s"DIR_SEP"%s", directory, filename);
		}
		return(path);
	}
	const char *Path(void) {
		return(path);
	}

private:
	char *path;
};

/* Functions exported from load.cc */
extern SDL_Surface *Load_Icon(char **xpm);
extern SDL_Surface *Load_Title(FrameBuf *screen, int title_id);
extern SDL_Surface *GetCIcon(FrameBuf *screen, short cicn_id);

#endif /* _load_h */