126 lines
3.3 KiB
C
126 lines
3.3 KiB
C
/*
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* tracker music (module file) decoding support using libmodplug
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*
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* Copyright (C) 2013 O.Sezer <sezero@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "quakedef.h"
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#if defined(USE_CODEC_MODPLUG)
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#include "snd_codec.h"
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#include "snd_codeci.h"
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#include "snd_modplug.h"
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#include <libmodplug/modplug.h>
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static void S_MODPLUG_SetSettings (snd_stream_t *stream)
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{
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ModPlug_Settings settings;
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ModPlug_GetSettings(&settings);
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settings.mFlags = MODPLUG_ENABLE_OVERSAMPLING;
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settings.mChannels = shm->channels;
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settings.mBits = shm->samplebits;
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settings.mFrequency = shm->speed;
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settings.mResamplingMode = MODPLUG_RESAMPLE_SPLINE;/*MODPLUG_RESAMPLE_FIR*/
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settings.mLoopCount = -1; /* to enable module internal loops */
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ModPlug_SetSettings(&settings);
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if (stream) {
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stream->info.rate = shm->speed;
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stream->info.bits = shm->samplebits;
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stream->info.width = stream->info.bits / 8;
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stream->info.channels = shm->channels;
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}
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}
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static qboolean S_MODPLUG_CodecInitialize (void)
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{
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return true;
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}
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static void S_MODPLUG_CodecShutdown (void)
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{
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}
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static qboolean S_MODPLUG_CodecOpenStream (snd_stream_t *stream)
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{
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/* need to load the whole file into memory and pass it to libmodplug */
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byte *moddata;
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long len;
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int mark;
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len = FS_filelength (&stream->fh);
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mark = Hunk_LowMark();
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moddata = (byte *) Hunk_Alloc(len);
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FS_fread(moddata, 1, len, &stream->fh);
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S_MODPLUG_SetSettings(stream);
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stream->priv = ModPlug_Load(moddata, len);
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Hunk_FreeToLowMark(mark); /* free original file data */
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if (!stream->priv)
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{
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Con_DPrintf("Could not load module %s\n", stream->name);
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return false;
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}
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ModPlug_Seek((ModPlugFile*)stream->priv, 0);
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/* default volume (128) sounds rather low? */
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ModPlug_SetMasterVolume((ModPlugFile*)stream->priv, 384); /* 0-512 */
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return true;
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}
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static int S_MODPLUG_CodecReadStream (snd_stream_t *stream, int bytes, void *buffer)
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{
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return ModPlug_Read((ModPlugFile*)stream->priv, buffer, bytes);
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}
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static void S_MODPLUG_CodecCloseStream (snd_stream_t *stream)
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{
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ModPlug_Unload((ModPlugFile*)stream->priv);
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S_CodecUtilClose(&stream);
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}
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static int S_MODPLUG_CodecJumpToOrder (snd_stream_t *stream, int to)
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{
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ModPlug_SeekOrder((ModPlugFile*)stream->priv, to);
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return 0;
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}
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static int S_MODPLUG_CodecRewindStream (snd_stream_t *stream)
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{
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ModPlug_Seek((ModPlugFile*)stream->priv, 0);
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return 0;
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}
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snd_codec_t modplug_codec =
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{
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CODECTYPE_MOD,
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true, /* always available. */
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"s3m",
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S_MODPLUG_CodecInitialize,
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S_MODPLUG_CodecShutdown,
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S_MODPLUG_CodecOpenStream,
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S_MODPLUG_CodecReadStream,
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S_MODPLUG_CodecRewindStream,
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S_MODPLUG_CodecJumpToOrder,
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S_MODPLUG_CodecCloseStream,
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NULL
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};
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#endif /* USE_CODEC_MODPLUG */
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