/*

SDL - Simple DirectMedia Layer

Copyright (C) 1997-2006 Sam Lantinga

This library is free software; you can redistribute it and/or

modify it under the terms of the GNU Lesser General Public

License as published by the Free Software Foundation; either

version 2.1 of the License, or (at your option) any later version.

This library 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

Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public

License along with this library; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

Sam Lantinga

slouken@libsdl.org

*/

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/* System dependent library loading routines */

#if !SDL_INTERNAL_BUILDING_LOADSO

#error Do not compile directly...compile src/SDL_loadso.c instead!

#endif

#if !defined(macintosh)

#error Compiling for the wrong platform?

#endif

#include <stdio.h>

#include <string.h>

#define OLDP2C 1

#include <Strings.h>

#include <CodeFragments.h>

#include <Errors.h>

#include "SDL_types.h"

#include "SDL_error.h"

#include "SDL_loadso.h"

void *SDL_LoadObject(const char *sofile)

{

void *handle = NULL;

const char *loaderror = NULL;

CFragConnectionID library_id;

Ptr mainAddr;

Str255 errName;

OSErr error;

char psofile[512];

strncpy(psofile, sofile, SDL_TABLESIZE(psofile));

psofile[SDL_TABLESIZE(psofile)-1] = '\0';

error = GetSharedLibrary(C2PStr(psofile), kCompiledCFragArch,

kLoadCFrag, &library_id, &mainAddr, errName);

switch (error) {

case noErr:

loaderror = NULL;

break;

case cfragNoLibraryErr:

loaderror = "Library not found";

break;

case cfragUnresolvedErr:

loaderror = "Unabled to resolve symbols";

break;

case cfragNoPrivateMemErr:

case cfragNoClientMemErr:

loaderror = "Out of memory";

break;

default:

loaderror = "Unknown Code Fragment Manager error";

break;

}

if ( loaderror == NULL ) {

handle = (void *)(library_id);

} else {

SDL_SetError("Failed loading %s: %s", sofile, loaderror);

}

return(handle);

}

void *SDL_LoadFunction(void *handle, const char *name)

{

void *symbol = NULL;

const char *loaderror = NULL;

CFragSymbolClass class;

CFragConnectionID library_id = (CFragConnectionID)handle;

char pname[512];

strncpy(pname, name, SDL_TABLESIZE(pname));

pname[SDL_TABLESIZE(pname)-1] = '\0';

if ( FindSymbol(library_id, C2PStr(pname),

(char **)&symbol, &class) != noErr ) {

loaderror = "Symbol not found";

}

if ( symbol == NULL ) {

SDL_SetError("Failed loading %s: %s", name, loaderror);

}

return(symbol);

}

void SDL_UnloadObject(void *handle)

{

CFragConnectionID library_id;

if ( handle != NULL ) {

library_id = (CFragConnectionID)handle;

CloseConnection(&library_id);

}

}