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Kart-Public/src/sdl/mixer_sound.c

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// SONIC ROBO BLAST 2
//-----------------------------------------------------------------------------
// Copyright (C) 2014-2018 by Sonic Team Junior.
//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
// See the 'LICENSE' file for more details.
//-----------------------------------------------------------------------------
/// \file
/// \brief SDL Mixer interface for sound
#include "../doomdef.h"
#if defined(HAVE_SDL) && defined(HAVE_MIXER) && SOUND==SOUND_MIXER
#include "../sounds.h"
#include "../s_sound.h"
#include "../i_sound.h"
#include "../w_wad.h"
#include "../z_zone.h"
#include "../byteptr.h"
#ifdef _MSC_VER
#pragma warning(disable : 4214 4244)
#endif
#include "SDL.h"
#ifdef _MSC_VER
#pragma warning(default : 4214 4244)
#endif
#include "SDL_mixer.h"
/* This is the version number macro for the current SDL_mixer version: */
#ifndef SDL_MIXER_COMPILEDVERSION
#define SDL_MIXER_COMPILEDVERSION \
SDL_VERSIONNUM(MIX_MAJOR_VERSION, MIX_MINOR_VERSION, MIX_PATCHLEVEL)
#endif
/* This macro will evaluate to true if compiled with SDL_mixer at least X.Y.Z */
#ifndef SDL_MIXER_VERSION_ATLEAST
#define SDL_MIXER_VERSION_ATLEAST(X, Y, Z) \
(SDL_MIXER_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z))
#endif
// thanks alam for making the buildbots happy!
#if SDL_MIXER_VERSION_ATLEAST(2,0,2)
#define MUS_MP3_MAD MUS_MP3_MAD_UNUSED
#define MUS_MODPLUG MUS_MODPLUG_UNUSED
#endif
#ifdef HAVE_LIBGME
#include "gme/gme.h"
#define GME_TREBLE 5.0f
#define GME_BASS 1.0f
#ifdef HAVE_ZLIB
#ifndef _MSC_VER
#ifndef _LARGEFILE64_SOURCE
#define _LARGEFILE64_SOURCE
#endif
#endif
#ifndef _LFS64_LARGEFILE
#define _LFS64_LARGEFILE
#endif
#ifndef _FILE_OFFSET_BITS
#define _FILE_OFFSET_BITS 0
#endif
#include "zlib.h"
#endif // HAVE_ZLIB
#endif // HAVE_LIBGME
UINT8 sound_started = false;
static Mix_Music *music;
static UINT8 music_volume, sfx_volume;
static float loop_point;
static boolean songpaused;
#ifdef HAVE_LIBGME
static Music_Emu *gme;
static INT32 current_track;
#endif
/// ------------------------
/// Audio System
/// ------------------------
void I_StartupSound(void)
{
I_Assert(!sound_started);
#ifdef _WIN32
// Force DirectSound instead of WASAPI
// SDL 2.0.6+ defaults to the latter and it screws up our sound effects
SDL_setenv("SDL_AUDIODRIVER", "directsound", 1);
#endif
// EE inits audio first so we're following along.
if (SDL_WasInit(SDL_INIT_AUDIO) == SDL_INIT_AUDIO)
{
CONS_Debug(DBG_DETAILED, "SDL Audio already started\n");
return;
}
else if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0)
{
CONS_Alert(CONS_ERROR, "Error initializing SDL Audio: %s\n", SDL_GetError());
// call to start audio failed -- we do not have it
return;
}
music = NULL;
music_volume = sfx_volume = 0;
#if SDL_MIXER_VERSION_ATLEAST(1,2,11)
Mix_Init(MIX_INIT_FLAC|MIX_INIT_MOD|MIX_INIT_MP3|MIX_INIT_OGG);
#endif
if (Mix_OpenAudio(44100, AUDIO_S16SYS, 2, 2048) < 0)
{
CONS_Alert(CONS_ERROR, "Error starting SDL_Mixer: %s\n", Mix_GetError());
// call to start audio failed -- we do not have it
return;
}
sound_started = true;
songpaused = false;
Mix_AllocateChannels(256);
}
void I_ShutdownSound(void)
{
if (!sound_started)
return; // not an error condition
sound_started = false;
Mix_CloseAudio();
#if SDL_MIXER_VERSION_ATLEAST(1,2,11)
Mix_Quit();
#endif
SDL_QuitSubSystem(SDL_INIT_AUDIO);
#ifdef HAVE_LIBGME
if (gme)
gme_delete(gme);
#endif
}
void I_UpdateSound(void)
{
}
/// ------------------------
/// SFX
/// ------------------------
// this is as fast as I can possibly make it.
// sorry. more asm needed.
static Mix_Chunk *ds2chunk(void *stream)
{
UINT16 ver,freq;
UINT32 samples, i, newsamples;
UINT8 *sound;
SINT8 *s;
INT16 *d;
INT16 o;
fixed_t step, frac;
// lump header
ver = READUINT16(stream); // sound version format?
if (ver != 3) // It should be 3 if it's a doomsound...
return NULL; // onos! it's not a doomsound!
freq = READUINT16(stream);
samples = READUINT32(stream);
// convert from signed 8bit ???hz to signed 16bit 44100hz.
switch(freq)
{
case 44100:
if (samples >= UINT32_MAX>>2)
return NULL; // would wrap, can't store.
newsamples = samples;
break;
case 22050:
if (samples >= UINT32_MAX>>3)
return NULL; // would wrap, can't store.
newsamples = samples<<1;
break;
case 11025:
if (samples >= UINT32_MAX>>4)
return NULL; // would wrap, can't store.
newsamples = samples<<2;
break;
default:
frac = (44100 << FRACBITS) / (UINT32)freq;
if (!(frac & 0xFFFF)) // other solid multiples (change if FRACBITS != 16)
newsamples = samples * (frac >> FRACBITS);
else // strange and unusual fractional frequency steps, plus anything higher than 44100hz.
newsamples = FixedMul(FixedDiv(samples, freq), 44100) + 1; // add 1 to counter truncation.
if (newsamples >= UINT32_MAX>>2)
return NULL; // would and/or did wrap, can't store.
break;
}
sound = Z_Malloc(newsamples<<2, PU_SOUND, NULL); // samples * frequency shift * bytes per sample * channels
s = (SINT8 *)stream;
d = (INT16 *)sound;
i = 0;
switch(freq)
{
case 44100: // already at the same rate? well that makes it simple.
while(i++ < samples)
{
o = ((INT16)(*s++)+0x80)<<8; // changed signedness and shift up to 16 bits
*d++ = o; // left channel
*d++ = o; // right channel
}
break;
case 22050: // unwrap 2x
while(i++ < samples)
{
o = ((INT16)(*s++)+0x80)<<8; // changed signedness and shift up to 16 bits
*d++ = o; // left channel
*d++ = o; // right channel
*d++ = o; // left channel
*d++ = o; // right channel
}
break;
case 11025: // unwrap 4x
while(i++ < samples)
{
o = ((INT16)(*s++)+0x80)<<8; // changed signedness and shift up to 16 bits
*d++ = o; // left channel
*d++ = o; // right channel
*d++ = o; // left channel
*d++ = o; // right channel
*d++ = o; // left channel
*d++ = o; // right channel
*d++ = o; // left channel
*d++ = o; // right channel
}
break;
default: // convert arbitrary hz to 44100.
step = 0;
frac = ((UINT32)freq << FRACBITS) / 44100 + 1; //Add 1 to counter truncation.
while (i < samples)
{
o = (INT16)(*s+0x80)<<8; // changed signedness and shift up to 16 bits
while (step < FRACUNIT) // this is as fast as I can make it.
{
*d++ = o; // left channel
*d++ = o; // right channel
step += frac;
}
do {
i++; s++;
step -= FRACUNIT;
} while (step >= FRACUNIT);
}
break;
}
// return Mixer Chunk.
return Mix_QuickLoad_RAW(sound, (Uint32)((UINT8*)d-sound));
}
void *I_GetSfx(sfxinfo_t *sfx)
{
void *lump;
Mix_Chunk *chunk;
SDL_RWops *rw;
#ifdef HAVE_LIBGME
Music_Emu *emu;
gme_info_t *info;
#endif
if (sfx->lumpnum == LUMPERROR)
sfx->lumpnum = S_GetSfxLumpNum(sfx);
sfx->length = W_LumpLength(sfx->lumpnum);
lump = W_CacheLumpNum(sfx->lumpnum, PU_SOUND);
// convert from standard DoomSound format.
chunk = ds2chunk(lump);
if (chunk)
{
Z_Free(lump);
return chunk;
}
// Not a doom sound? Try something else.
#ifdef HAVE_LIBGME
// VGZ format
if (((UINT8 *)lump)[0] == 0x1F
&& ((UINT8 *)lump)[1] == 0x8B)
{
#ifdef HAVE_ZLIB
UINT8 *inflatedData;
size_t inflatedLen;
z_stream stream;
int zErr; // Somewhere to handle any error messages zlib tosses out
memset(&stream, 0x00, sizeof (z_stream)); // Init zlib stream
// Begin the inflation process
inflatedLen = *(UINT32 *)lump + (sfx->length-4); // Last 4 bytes are the decompressed size, typically
inflatedData = (UINT8 *)Z_Malloc(inflatedLen, PU_SOUND, NULL); // Make room for the decompressed data
stream.total_in = stream.avail_in = sfx->length;
stream.total_out = stream.avail_out = inflatedLen;
stream.next_in = (UINT8 *)lump;
stream.next_out = inflatedData;
zErr = inflateInit2(&stream, 32 + MAX_WBITS);
if (zErr == Z_OK) // We're good to go
{
zErr = inflate(&stream, Z_FINISH);
if (zErr == Z_STREAM_END) {
// Run GME on new data
if (!gme_open_data(inflatedData, inflatedLen, &emu, 44100))
{
short *mem;
UINT32 len;
gme_equalizer_t eq = {GME_TREBLE, GME_BASS, 0,0,0,0,0,0,0,0};
Z_Free(inflatedData); // GME supposedly makes a copy for itself, so we don't need this lying around
Z_Free(lump); // We're done with the uninflated lump now, too.
gme_start_track(emu, 0);
gme_set_equalizer(emu, &eq);
gme_track_info(emu, &info, 0);
len = (info->play_length * 441 / 10) << 2;
mem = malloc(len);
gme_play(emu, len >> 1, mem);
gme_delete(emu);
return Mix_QuickLoad_RAW((Uint8 *)mem, len);
}
}
else
{
const char *errorType;
switch (zErr)
{
case Z_ERRNO:
errorType = "Z_ERRNO"; break;
case Z_STREAM_ERROR:
errorType = "Z_STREAM_ERROR"; break;
case Z_DATA_ERROR:
errorType = "Z_DATA_ERROR"; break;
case Z_MEM_ERROR:
errorType = "Z_MEM_ERROR"; break;
case Z_BUF_ERROR:
errorType = "Z_BUF_ERROR"; break;
case Z_VERSION_ERROR:
errorType = "Z_VERSION_ERROR"; break;
default:
errorType = "unknown error";
}
CONS_Alert(CONS_ERROR,"Encountered %s when running inflate: %s\n", errorType, stream.msg);
}
(void)inflateEnd(&stream);
}
else // Hold up, zlib's got a problem
{
const char *errorType;
switch (zErr)
{
case Z_ERRNO:
errorType = "Z_ERRNO"; break;
case Z_STREAM_ERROR:
errorType = "Z_STREAM_ERROR"; break;
case Z_DATA_ERROR:
errorType = "Z_DATA_ERROR"; break;
case Z_MEM_ERROR:
errorType = "Z_MEM_ERROR"; break;
case Z_BUF_ERROR:
errorType = "Z_BUF_ERROR"; break;
case Z_VERSION_ERROR:
errorType = "Z_VERSION_ERROR"; break;
default:
errorType = "unknown error";
}
CONS_Alert(CONS_ERROR,"Encountered %s when running inflateInit: %s\n", errorType, stream.msg);
}
Z_Free(inflatedData); // GME didn't open jack, but don't let that stop us from freeing this up
#else
return NULL; // No zlib support
#endif
}
// Try to read it as a GME sound
else if (!gme_open_data(lump, sfx->length, &emu, 44100))
{
short *mem;
UINT32 len;
gme_equalizer_t eq = {GME_TREBLE, GME_BASS, 0,0,0,0,0,0,0,0};
Z_Free(lump);
gme_start_track(emu, 0);
gme_set_equalizer(emu, &eq);
gme_track_info(emu, &info, 0);
len = (info->play_length * 441 / 10) << 2;
mem = malloc(len);
gme_play(emu, len >> 1, mem);
gme_delete(emu);
return Mix_QuickLoad_RAW((Uint8 *)mem, len);
}
#endif
// Try to load it as a WAVE or OGG using Mixer.
rw = SDL_RWFromMem(lump, sfx->length);
if (rw != NULL)
{
chunk = Mix_LoadWAV_RW(rw, 1);
return chunk;
}
return NULL; // haven't been able to get anything
}
void I_FreeSfx(sfxinfo_t *sfx)
{
if (sfx->data)
{
Mix_Chunk *chunk = (Mix_Chunk*)sfx->data;
UINT8 *abufdata = NULL;
if (chunk->allocated == 0)
{
// We allocated the data in this chunk, so get the abuf from mixer, then let it free the chunk, THEN we free the data
// I believe this should ensure the sound is not playing when we free it
abufdata = chunk->abuf;
}
Mix_FreeChunk(sfx->data);
if (abufdata)
{
// I'm going to assume we used Z_Malloc to allocate this data.
Z_Free(abufdata);
}
}
sfx->data = NULL;
sfx->lumpnum = LUMPERROR;
}
INT32 I_StartSound(sfxenum_t id, UINT8 vol, UINT8 sep, UINT8 pitch, UINT8 priority, INT32 channel)
{
UINT8 volume = (((UINT16)vol + 1) * (UINT16)sfx_volume) / 62; // (256 * 31) / 62 == 127
INT32 handle = Mix_PlayChannel(channel, S_sfx[id].data, 0);
Mix_Volume(handle, volume);
Mix_SetPanning(handle, min((UINT16)(0xff-sep)<<1, 0xff), min((UINT16)(sep)<<1, 0xff));
(void)pitch; // Mixer can't handle pitch
(void)priority; // priority and channel management is handled by SRB2...
return handle;
}
void I_StopSound(INT32 handle)
{
Mix_HaltChannel(handle);
}
boolean I_SoundIsPlaying(INT32 handle)
{
return Mix_Playing(handle);
}
void I_UpdateSoundParams(INT32 handle, UINT8 vol, UINT8 sep, UINT8 pitch)
{
UINT8 volume = (((UINT16)vol + 1) * (UINT16)sfx_volume) / 62; // (256 * 31) / 62 == 127
Mix_Volume(handle, volume);
Mix_SetPanning(handle, min((UINT16)(0xff-sep)<<1, 0xff), min((UINT16)(sep)<<1, 0xff));
(void)pitch;
}
void I_SetSfxVolume(UINT8 volume)
{
sfx_volume = volume;
}
/// ------------------------
/// Music Hooks
/// ------------------------
static void music_loop(void)
{
Mix_PlayMusic(music, 0);
Mix_SetMusicPosition(loop_point);
}
#ifdef HAVE_LIBGME
static void mix_gme(void *udata, Uint8 *stream, int len)
{
int i;
short *p;
(void)udata;
// no gme? no music.
if (!gme || gme_track_ended(gme) || songpaused)
return;
// play gme into stream
gme_play(gme, len/2, (short *)stream);
// apply volume to stream
for (i = 0, p = (short *)stream; i < len/2; i++, p++)
*p = ((INT32)*p) * music_volume*2 / 42;
}
#endif
/// ------------------------
/// Music System
/// ------------------------
void I_InitMusic(void)
{
}
void I_ShutdownMusic(void)
{
I_UnloadSong();
}
/// ------------------------
/// Music Properties
/// ------------------------
musictype_t I_SongType(void)
{
#ifdef HAVE_LIBGME
if (gme)
return MU_GME;
else
#endif
if (!music)
return MU_NONE;
else if (Mix_GetMusicType(music) == MUS_MID)
return MU_MID;
else if (Mix_GetMusicType(music) == MUS_MOD || Mix_GetMusicType(music) == MUS_MODPLUG)
return MU_MOD;
else if (Mix_GetMusicType(music) == MUS_MP3 || Mix_GetMusicType(music) == MUS_MP3_MAD)
return MU_MP3;
else
return (musictype_t)Mix_GetMusicType(music);
}
boolean I_SongPlaying(void)
{
return (
#ifdef HAVE_LIBGME
(I_SongType() == MU_GME && gme) ||
#endif
music != NULL
);
}
boolean I_SongPaused(void)
{
return songpaused;
}
/// ------------------------
/// Music Effects
/// ------------------------
boolean I_SetSongSpeed(float speed)
{
if (speed > 250.0f)
speed = 250.0f; //limit speed up to 250x
#ifdef HAVE_LIBGME
if (gme)
{
SDL_LockAudio();
gme_set_tempo(gme, speed);
SDL_UnlockAudio();
return true;
}
#else
(void)speed;
#endif
return false;
}
/// ------------------------
/// Music Playback
/// ------------------------
boolean I_LoadSong(char *data, size_t len)
{
const char *key1 = "LOOP";
const char *key2 = "POINT=";
const char *key3 = "MS=";
const size_t key1len = strlen(key1);
const size_t key2len = strlen(key2);
const size_t key3len = strlen(key3);
char *p = data;
SDL_RWops *rw;
if (music
#ifdef HAVE_LIBGME
|| gme
#endif
)
I_UnloadSong();
#ifdef HAVE_LIBGME
if ((UINT8)data[0] == 0x1F
&& (UINT8)data[1] == 0x8B)
{
#ifdef HAVE_ZLIB
UINT8 *inflatedData;
size_t inflatedLen;
z_stream stream;
int zErr; // Somewhere to handle any error messages zlib tosses out
memset(&stream, 0x00, sizeof (z_stream)); // Init zlib stream
// Begin the inflation process
inflatedLen = *(UINT32 *)(data + (len-4)); // Last 4 bytes are the decompressed size, typically
inflatedData = (UINT8 *)Z_Calloc(inflatedLen, PU_MUSIC, NULL); // Make room for the decompressed data
stream.total_in = stream.avail_in = len;
stream.total_out = stream.avail_out = inflatedLen;
stream.next_in = (UINT8 *)data;
stream.next_out = inflatedData;
zErr = inflateInit2(&stream, 32 + MAX_WBITS);
if (zErr == Z_OK) // We're good to go
{
zErr = inflate(&stream, Z_FINISH);
if (zErr == Z_STREAM_END) {
// Run GME on new data
if (!gme_open_data(inflatedData, inflatedLen, &gme, 44100))
{
gme_equalizer_t eq = {GME_TREBLE, GME_BASS, 0,0,0,0,0,0,0,0};
gme_start_track(gme, 0);
current_track = 0;
gme_set_equalizer(gme, &eq);
Mix_HookMusic(mix_gme, gme);
Z_Free(inflatedData); // GME supposedly makes a copy for itself, so we don't need this lying around
return true;
}
}
else
{
const char *errorType;
switch (zErr)
{
case Z_ERRNO:
errorType = "Z_ERRNO"; break;
case Z_STREAM_ERROR:
errorType = "Z_STREAM_ERROR"; break;
case Z_DATA_ERROR:
errorType = "Z_DATA_ERROR"; break;
case Z_MEM_ERROR:
errorType = "Z_MEM_ERROR"; break;
case Z_BUF_ERROR:
errorType = "Z_BUF_ERROR"; break;
case Z_VERSION_ERROR:
errorType = "Z_VERSION_ERROR"; break;
default:
errorType = "unknown error";
}
CONS_Alert(CONS_ERROR,"Encountered %s when running inflate: %s\n", errorType, stream.msg);
}
(void)inflateEnd(&stream);
}
else // Hold up, zlib's got a problem
{
const char *errorType;
switch (zErr)
{
case Z_ERRNO:
errorType = "Z_ERRNO"; break;
case Z_STREAM_ERROR:
errorType = "Z_STREAM_ERROR"; break;
case Z_DATA_ERROR:
errorType = "Z_DATA_ERROR"; break;
case Z_MEM_ERROR:
errorType = "Z_MEM_ERROR"; break;
case Z_BUF_ERROR:
errorType = "Z_BUF_ERROR"; break;
case Z_VERSION_ERROR:
errorType = "Z_VERSION_ERROR"; break;
default:
errorType = "unknown error";
}
CONS_Alert(CONS_ERROR,"Encountered %s when running inflateInit: %s\n", errorType, stream.msg);
}
Z_Free(inflatedData); // GME didn't open jack, but don't let that stop us from freeing this up
#else
CONS_Alert(CONS_ERROR,"Cannot decompress VGZ; no zlib support\n");
return true;
#endif
}
else if (!gme_open_data(data, len, &gme, 44100))
{
gme_equalizer_t eq = {GME_TREBLE, GME_BASS, 0,0,0,0,0,0,0,0};
gme_set_equalizer(gme, &eq);
return true;
}
#endif
rw = SDL_RWFromMem(data, len);
if (rw != NULL)
{
music = Mix_LoadMUS_RW(rw, 1);
}
if (!music)
{
CONS_Alert(CONS_ERROR, "Mix_LoadMUS_RW: %s\n", Mix_GetError());
return false;
}
// Find the OGG loop point.
loop_point = 0.0f;
while ((UINT32)(p - data) < len)
{
if (strncmp(p++, key1, key1len))
continue;
p += key1len-1; // skip OOP (the L was skipped in strncmp)
if (!strncmp(p, key2, key2len)) // is it LOOPPOINT=?
{
p += key2len; // skip POINT=
loop_point = (float)((44.1L+atoi(p)) / 44100.0L); // LOOPPOINT works by sample count.
// because SDL_Mixer is USELESS and can't even tell us
// something simple like the frequency of the streaming music,
// we are unfortunately forced to assume that ALL MUSIC is 44100hz.
// This means a lot of tracks that are only 22050hz for a reasonable downloadable file size will loop VERY badly.
}
else if (!strncmp(p, key3, key3len)) // is it LOOPMS=?
{
p += key3len; // skip MS=
loop_point = (float)(atoi(p) / 1000.0L); // LOOPMS works by real time, as miliseconds.
// Everything that uses LOOPMS will work perfectly with SDL_Mixer.
}
// Neither?! Continue searching.
}
return true;
}
void I_UnloadSong(void)
{
I_StopSong();
#ifdef HAVE_LIBGME
if (gme)
{
gme_delete(gme);
gme = NULL;
}
#endif
if (music)
{
Mix_FreeMusic(music);
music = NULL;
}
}
boolean I_PlaySong(boolean looping)
{
boolean lpz = fpclassify(loop_point) == FP_ZERO;
#ifdef HAVE_LIBGME
if (gme)
{
gme_start_track(gme, 0);
current_track = 0;
Mix_HookMusic(mix_gme, gme);
return true;
}
else
#endif
if (!music)
return false;
if (Mix_PlayMusic(music, looping && lpz ? -1 : 0) == -1)
{
CONS_Alert(CONS_ERROR, "Mix_PlayMusic: %s\n", Mix_GetError());
return false;
}
Mix_VolumeMusic((UINT32)music_volume*128/31);
if (!lpz)
Mix_HookMusicFinished(music_loop);
return true;
}
void I_StopSong(void)
{
#ifdef HAVE_LIBGME
if (gme)
{
Mix_HookMusic(NULL, NULL);
current_track = -1;
}
#endif
if (music)
{
Mix_HookMusicFinished(NULL);
Mix_HaltMusic();
}
}
void I_PauseSong(void)
{
Mix_PauseMusic();
songpaused = true;
}
void I_ResumeSong(void)
{
Mix_ResumeMusic();
songpaused = false;
}
void I_SetMusicVolume(UINT8 volume)
{
if (!I_SongPlaying())
return;
#ifdef _WIN32
if (I_SongType() == MU_MID)
// HACK: Until we stop using native MIDI,
// disable volume changes
music_volume = 31;
else
#endif
music_volume = volume;
Mix_VolumeMusic((UINT32)music_volume*128/31);
}
boolean I_SetSongTrack(int track)
{
#ifdef HAVE_LIBGME
if (current_track == track)
return false;
// If the specified track is within the number of tracks playing, then change it
if (gme)
{
SDL_LockAudio();
if (track >= 0
&& track < gme_track_count(gme))
{
gme_err_t gme_e = gme_start_track(gme, track);
if (gme_e != NULL)
{
CONS_Alert(CONS_ERROR, "GME error: %s\n", gme_e);
return false;
}
current_track = track;
SDL_UnlockAudio();
return true;
}
SDL_UnlockAudio();
return false;
}
#endif
(void)track;
return false;
}
#endif
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