gstreamer/gst/nsf/fds_snd.c

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/*
** Nofrendo (c) 1998-2000 Matthew Conte (matt@conte.com)
**
**
** This program is free software; you can redistribute it and/or
** modify it under the terms of version 2 of the GNU Library General
** Public License as published by the Free Software Foundation.
**
** This program 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
** Library General Public License for more details. To obtain a
** copy of the GNU Library General Public License, write to the Free
** Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
**
** Any permitted reproduction of these routines, in whole or in part,
** must bear this legend.
**
**
** fds_snd.c
**
** Famicom Disk System sound emulation
** $Id$
*/
#include "types.h"
#include "nes_apu.h"
#include "fds_snd.h"
static int32 fds_incsize = 0;
/* mix sound channels together */
static int32
fds_process (void)
{
int32 output;
output = 0;
return output;
}
/* write to registers */
static void
fds_write (uint32 address, uint8 value)
{
}
/* reset state of vrcvi sound channels */
static void
fds_reset (void)
{
fds_incsize = apu_getcyclerate ();
}
static void
fds_init (void)
{
}
/* TODO: bleh */
static void
fds_shutdown (void)
{
}
static apu_memwrite fds_memwrite[] = {
{0x4040, 0x4092, fds_write},
{-1, -1, NULL}
};
apuext_t fds_ext = {
fds_init,
fds_shutdown,
fds_reset,
fds_process,
NULL, /* no reads */
fds_memwrite
};
/*
** $Log$
** Revision 1.1 2006/07/13 15:07:28 wtay
** Based on patches by: Johan Dahlin <johan at gnome dot org>
** Ronald Bultje <rbultje at ronald dot bitfreak dot net>
** * configure.ac:
** * gst/nsf/Makefile.am:
** * gst/nsf/dis6502.h:
** * gst/nsf/fds_snd.c:
** * gst/nsf/fds_snd.h:
** * gst/nsf/fmopl.c:
** * gst/nsf/fmopl.h:
** * gst/nsf/gstnsf.c:
** * gst/nsf/gstnsf.h:
** * gst/nsf/log.c:
** * gst/nsf/log.h:
** * gst/nsf/memguard.c:
** * gst/nsf/memguard.h:
** * gst/nsf/mmc5_snd.c:
** * gst/nsf/mmc5_snd.h:
** * gst/nsf/nes6502.c:
** * gst/nsf/nes6502.h:
** * gst/nsf/nes_apu.c:
** * gst/nsf/nes_apu.h:
** * gst/nsf/nsf.c:
** * gst/nsf/nsf.h:
** * gst/nsf/osd.h:
** * gst/nsf/types.h:
** * gst/nsf/vrc7_snd.c:
** * gst/nsf/vrc7_snd.h:
** * gst/nsf/vrcvisnd.c:
** * gst/nsf/vrcvisnd.h:
** Added NSF decoder plugin. Fixes 151192.
**
** Revision 1.3 2000/07/03 02:18:53 matt
** much better external module exporting
**
** Revision 1.2 2000/06/20 04:06:16 matt
** migrated external sound definition to apu module
**
** Revision 1.1 2000/06/20 00:06:47 matt
** initial revision
**
*/