/*
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include <GL/freeglut.h>
#include "../fg_internal.h"
#include <dlfcn.h>

GLUTproc fgPlatformGetGLUTProcAddress( const char *procName )
{
    /* optimization: quick initial check */
    if ( strncmp( procName, "glut", 4 ) != 0 )
        return NULL;

#define CHECK_NAME( x )                \
    if ( strcmp( procName, #x ) == 0 ) \
        return (GLUTproc)x;
    CHECK_NAME( glutJoystickFunc );
    CHECK_NAME( glutForceJoystickFunc );
    CHECK_NAME( glutGameModeString );
    CHECK_NAME( glutEnterGameMode );
    CHECK_NAME( glutLeaveGameMode );
    CHECK_NAME( glutGameModeGet );
#undef CHECK_NAME

    return NULL;
}

SFG_Proc fgPlatformGetProcAddress( const char *procName )
{
    static void *glHandle = NULL;

    if ( glHandle == NULL ) {
        glHandle = dlopen( "/System/Library/Frameworks/OpenGL.framework/OpenGL", RTLD_LAZY | RTLD_GLOBAL );
        if ( glHandle == NULL ) {
            fgError( "Failed to dlopen OpenGL framework" );
        }
    }
    return (SFG_Proc)dlsym( glHandle, procName );
}
