Loading files in Windows

[Joe123]

I'm using SDL, so if I'm not meant to be asking for help with that here let me know I'll post somewhere else.

I'm not sure why this isn't working; it compiles fine on my mac but then when I try it on windows it doesn't seem to load the images properly.
The error message which I get from the function displays the correct filepath (and the file is definately there), so I can't understand why it won't load.

SDL_Surface* load_image(char* filename){
    SDL_Surface* loadedImage = NULL;
    SDL_Surface* optimizedImage = NULL;
	
	stringstream filepath;
	filepath << get_directory() << filename;
    loadedImage = IMG_Load(filepath.str().c_str());
    
    if(loadedImage == NULL) error_message(const_cast<char*> (filepath.str().c_str()));
    
    if(loadedImage != NULL){
        optimizedImage = SDL_DisplayFormat(loadedImage);
		SDL_FreeSurface(loadedImage);
		if(optimizedImage != NULL){
			Uint32 colorkey = SDL_MapRGB(optimizedImage->format, transparency.r, transparency.g, transparency.b); 
			SDL_SetColorKey(optimizedImage, SDL_SRCCOLORKEY, colorkey); 
		}
    }
    return optimizedImage;
}

char* get_directory(){
	char path[260], c;
#if defined (__WIN32__)
    c = 0x5C;
#else
    c = 0x2F;
#endif
    getcwd(path, 260);
	stringstream fullpath;
	fullpath << path << c;
	return const_cast<char*> (fullpath.str().c_str());
}

stderr.txt has this line in it:
C:\Users\Joe\Documents\Bubbles\spritesheet.png

And I'm calling the function with this:
spritesheet = load_image("spritesheet.png");

Any help would be greatly appreciated.

[Duthomhas]

Loading (non-BMP) images is an additional SDL library (SDL_image, I think). Are you sure that library is present on your Windows target?

[Hammurabi]

You got lucky (or unlucky, depending on how you look at it) running it on the Mac, since there is an error. You're returning a local variable. You want something more like this:

void get_directory( char* path ) {
    char* c = "/";
#if defined (__WIN32__)
    c = "\\";
#endif
    getcwd( path, 260 );
    strcat( path, c );
}

// Call it like this:
    char path[260];
    get_directory( path );
    strcat( path, filename );
// Then just use filename, no need for a sstream object 

[Joe123]

Yeah, IMG_Load is the SDL_Image function. The SDL one is SDL_LoadBitmap or something.
I have the libraries set up properly.

Ah, thanks.
I'll give that a go. I had some problems using strcat before.

EDIT:
Well, I tried doing it like that but I got the same problem.
path seems to contain the correct string rather than filename, but the image loading still doesn't work.

[Duthomhas]

Well, this is the first I've looked directly at your code.

I'm concerned about line 31. Take a look at Hammurabi's code to see the order things are concatenated into the string. Or:

#ifdef __WIN32__
char sep = '\\';
#else
char sep = '/';
#endif
fullpath << sep << path;

Notice also that I used character literals instead of coding the ASCII value directly.

Hope this helps.