Sweden-Number/dlls/winmm/winejack/jack.c

179 lines
4.7 KiB
C

/* -*- tab-width: 8; c-basic-offset: 4 -*- */
/*
* Wine Driver for jack Sound Server
* http://jackit.sourceforge.net
*
* Copyright 2002 Chris Morgan
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include "wine/library.h"
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "mmddk.h"
#include "jack.h"
#ifdef HAVE_JACK_JACK_H
static int jack = 0;
/* set this to zero or one to enable or disable tracing in here */
#define TRACING 0
#if TRACING
#define PRINTF(...) printf(...)
#else
#define PRINTF(...)
#endif
#ifndef JACK_SONAME
#define JACK_SONAME "libjack.so"
#endif
void *jackhandle = NULL;
/**************************************************************************
* JACK_drvLoad [internal]
*/
static DWORD JACK_drvLoad(void)
{
PRINTF("JACK_drvLoad()\n");
/* dynamically load the jack library if not already loaded */
if(!jackhandle)
{
jackhandle = wine_dlopen(JACK_SONAME, RTLD_NOW, NULL, 0);
PRINTF("JACK_drvLoad: JACK_SONAME == %s\n", JACK_SONAME);
PRINTF("JACK_drvLoad: jackhandle == 0x%x\n", jackhandle);
if(!jackhandle)
{
PRINTF("JACK_drvLoad: error loading the jack library %s, please install this library to use jack\n", JACK_SONAME);
jackhandle = (void*)-1;
return 0;
}
}
return 1;
}
/**************************************************************************
* JACK_drvFree [internal]
*/
/* unload the jack library on driver free */
static DWORD JACK_drvFree(void)
{
PRINTF("JACK_drvFree()\n");
if(jackhandle && (jackhandle != (void*)-1))
{
PRINTF("JACK_drvFree: calling wine_dlclose() on jackhandle\n");
wine_dlclose(jackhandle, NULL, 0);
jackhandle = NULL;
}
return 1;
}
/**************************************************************************
* JACK_drvOpen [internal]
*/
static DWORD JACK_drvOpen(LPSTR str)
{
/* if we were unable to load the jack library then fail the */
/* driver open */
if(!jackhandle)
{
PRINTF("JACK_drvOpen: unable to open the jack library, returning 0\n");
return 0;
}
if (jack)
{
PRINTF("JACK_drvOpen: jack != 0 (already open), returning 0\n");
return 0;
}
/* I know, this is ugly, but who cares... */
PRINTF("JACK_drvOpen: opened jack(set jack = 1), returning 1\n");
jack = 1;
return 1;
}
/**************************************************************************
* JACK_drvClose [internal]
*/
static DWORD JACK_drvClose(DWORD dwDevID)
{
if (jack)
{
PRINTF("JACK_drvClose: jack is nonzero, setting jack to 0 and returning 1\n");
jack = 0;
return 1;
}
PRINTF("JACK_drvClose: jack is zero(closed), returning 0\n");
return 0;
}
#endif /* #ifdef HAVE_JACK_JACK_H */
/**************************************************************************
* DriverProc (WINEJACK.1)
*/
LONG CALLBACK JACK_DriverProc(DWORD dwDevID, HDRVR hDriv, DWORD wMsg,
DWORD dwParam1, DWORD dwParam2)
{
/* EPP TRACE("(%08lX, %04X, %08lX, %08lX, %08lX)\n", */
/* EPP dwDevID, hDriv, wMsg, dwParam1, dwParam2); */
switch(wMsg) {
#ifdef HAVE_JACK_JACK_H
case DRV_LOAD:
PRINTF("JACK_DriverProc: DRV_LOAD\n");
return JACK_drvLoad();
case DRV_FREE:
PRINTF("JACK_DriverProc: DRV_FREE\n");
return JACK_drvFree();
case DRV_OPEN:
PRINTF("JACK_DriverProc: DRV_OPEN\n");
return JACK_drvOpen((LPSTR)dwParam1);
case DRV_CLOSE:
PRINTF("JACK_DriverProc: DRV_CLOSE\n");
return JACK_drvClose(dwDevID);
case DRV_ENABLE:
PRINTF("JACK_DriverProc: DRV_ENABLE\n");
return 1;
case DRV_DISABLE:
PRINTF("JACK_DriverProc: DRV_DISABLE\n");
return 1;
case DRV_QUERYCONFIGURE: return 1;
case DRV_CONFIGURE: MessageBoxA(0, "jack audio driver!", "jack driver", MB_OK); return 1;
case DRV_INSTALL:
PRINTF("JACK_DriverProc: DRV_INSTALL\n");
return DRVCNF_RESTART;
case DRV_REMOVE:
PRINTF("JACK_DriverProc: DRV_REMOVE\n");
return DRVCNF_RESTART;
#endif
default:
return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
}
}