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/*
   (c) Copyright 2001-2008  The world wide DirectFB Open Source Community (directfb.org)
   (c) Copyright 2000-2004  Convergence (integrated media) GmbH

   All rights reserved.

   Written by Denis Oliver Kropp <dok@directfb.org>,
              Andreas Hundt <andi@fischlustig.de>,
              Sven Neumann <neo@directfb.org>,
              Ville Syrjälä <syrjala@sci.fi> and
              Claudio Ciccani <klan@users.sf.net>.

   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 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., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#ifndef __DIRECT__INTERFACE_IMPLEMENTATION_H__
#define __DIRECT__INTERFACE_IMPLEMENTATION_H__

#include <direct/interface.h>


static const char   *GetType( void );
static const char   *GetImplementation( void );
static DirectResult  Allocate( void **interface );

static DirectInterfaceFuncs interface_funcs = {
     .GetType            = GetType,
     .GetImplementation  = GetImplementation,
     .Allocate           = Allocate,
     .Probe              = (DirectInterfaceGenericProbeFunc) Probe,
     .Construct          = (DirectInterfaceGenericConstructFunc) Construct
};

#define DIRECT_INTERFACE_IMPLEMENTATION(type, impl)    \
                                                       \
static const char *                                    \
GetType( void )                                        \
{                                                      \
     return #type;                                     \
}                                                      \
                                                       \
static const char *                                    \
GetImplementation( void )                              \
{                                                      \
     return #impl;                                     \
}                                                      \
                                                       \
static DirectResult                                    \
Allocate( void **interface )                           \
{                                                      \
     DIRECT_ALLOCATE_INTERFACE( *interface, type );    \
     return DR_OK;                                     \
}                                                      \
                                                       \
__attribute__((constructor))                           \
void                                                   \
type##_##impl##_ctor(void);                            \
                                                       \
__attribute__((constructor))                           \
void                                                   \
type##_##impl##_ctor(void)                             \
{                                                      \
     DirectRegisterInterface( &interface_funcs );      \
}                                                      \
                                                       \
__attribute__((destructor))                            \
void                                                   \
type##_##impl##_dtor(void);                            \
                                                       \
__attribute__((destructor))                            \
void                                                   \
type##_##impl##_dtor(void)                             \
{                                                      \
     DirectUnregisterInterface( &interface_funcs );    \
}

#endif