SameBoy/SDL/utils.c
NieDzejkob 91904df5e8
Add a build-time option to change the resources directory.
Normally, SameBoy would use executable-relative paths for any
resource files, which posed problems for packaging the software
by distributions, which usually prefer FHS-compliant file locations.

This commit makes it possible to specify an alternative base
directory with a compile-time environment variable.
2018-11-09 23:20:57 +01:00

47 lines
876 B
C

#include <SDL2/SDL.h>
#include <stdio.h>
#include <string.h>
#include "utils.h"
const char *resource_folder(void)
{
#ifdef DATA_DIR
return DATA_DIR;
#else
static const char *ret = NULL;
if (!ret) {
ret = SDL_GetBasePath();
if (!ret) {
ret = "./";
}
}
return ret;
#endif
}
char *resource_path(const char *filename)
{
static char path[1024];
snprintf(path, sizeof(path), "%s%s", resource_folder(), filename);
return path;
}
void replace_extension(const char *src, size_t length, char *dest, const char *ext)
{
memcpy(dest, src, length);
dest[length] = 0;
/* Remove extension */
for (size_t i = length; i--;) {
if (dest[i] == '/') break;
if (dest[i] == '.') {
dest[i] = 0;
break;
}
}
/* Add new extension */
strcat(dest, ext);
}