gzdoom-gles/src/sound/i_music.cpp

442 lines
9.2 KiB
C++
Raw Normal View History

/*
** i_music.cpp
** Plays music
**
**---------------------------------------------------------------------------
** Copyright 1998-2005 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <mmsystem.h>
#else
#include <SDL.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <signal.h>
#include <unistd.h>
#include <wordexp.h>
#include <stdio.h>
#include "mus2midi.h"
#define FALSE 0
#define TRUE 1
extern void ChildSigHandler (int signum);
#endif
#include <ctype.h>
#include <assert.h>
#include <stdio.h>
#include "doomtype.h"
#include "m_argv.h"
#include "i_music.h"
#include "i_musicinterns.h"
#include "w_wad.h"
#include "c_console.h"
#include "c_dispatch.h"
#include "i_system.h"
#include "i_sound.h"
#include "m_swap.h"
#include "i_cd.h"
#include "tempfiles.h"
#include "templates.h"
#include <fmod.h>
EXTERN_CVAR (Float, snd_midivolume)
EXTERN_CVAR (Int, snd_samplerate)
EXTERN_CVAR (Int, snd_mididevice)
void Enable_FSOUND_IO_Loader ();
void Disable_FSOUND_IO_Loader ();
static bool MusicDown = true;
MusInfo *currSong;
int nomusic = 0;
float relative_volume = 1.0f;
float saved_relative_volume = 1.0f; // this could be used to implement an ACS FadeMusic function
//==========================================================================
//
// CVAR snd_musicvolume
//
// Maximum volume of MOD/stream music.
//==========================================================================
CUSTOM_CVAR (Float, snd_musicvolume, 0.3f, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
{
if (self < 0.f)
self = 0.f;
else if (self > 1.f)
self = 1.f;
else if (currSong != NULL && !currSong->IsMIDI ())
currSong->SetVolume (clamp<float>(self*relative_volume, 0.0f, 1.0f));
}
MusInfo::~MusInfo ()
{
}
bool MusInfo::SetPosition (int order)
{
return false;
}
void I_InitMusic (void)
{
static bool setatterm = false;
snd_musicvolume.Callback ();
nomusic = !!Args.CheckParm("-nomusic") || !!Args.CheckParm("-nosound");
#ifdef _WIN32
I_InitMusicWin32 ();
#endif // _WIN32
if (!setatterm)
{
setatterm = true;
atterm (I_ShutdownMusic);
#ifndef _WIN32
signal (SIGCHLD, ChildSigHandler);
#endif
}
MusicDown = false;
}
void STACK_ARGS I_ShutdownMusic(void)
{
if (MusicDown)
return;
MusicDown = true;
if (currSong)
{
S_StopMusic (true);
assert (currSong == NULL);
}
#ifdef _WIN32
I_ShutdownMusicWin32 ();
#endif // _WIN32
}
void I_PlaySong (void *handle, int _looping, float rel_vol)
{
MusInfo *info = (MusInfo *)handle;
if (!info || nomusic)
return;
saved_relative_volume = relative_volume = rel_vol;
info->Stop ();
info->Play (_looping ? true : false);
if (info->m_Status == MusInfo::STATE_Playing)
currSong = info;
else
currSong = NULL;
}
void I_PauseSong (void *handle)
{
MusInfo *info = (MusInfo *)handle;
if (info)
info->Pause ();
}
void I_ResumeSong (void *handle)
{
MusInfo *info = (MusInfo *)handle;
if (info)
info->Resume ();
}
void I_StopSong (void *handle)
{
MusInfo *info = (MusInfo *)handle;
if (info)
info->Stop ();
if (info == currSong)
currSong = NULL;
}
void I_UnRegisterSong (void *handle)
{
MusInfo *info = (MusInfo *)handle;
if (info)
{
delete info;
}
}
void *I_RegisterSong (const char *filename, int offset, int len)
{
FILE *file;
MusInfo *info = NULL;
DWORD id;
if (nomusic)
{
return 0;
}
file = fopen (filename, "rb");
if (file == NULL)
{
return 0;
}
if (len == 0 && offset == 0)
{
fseek (file, 0, SEEK_END);
len = ftell (file);
fseek (file, 0, SEEK_SET);
}
else
{
fseek (file, offset, SEEK_SET);
}
if (fread (&id, 4, 1, file) != 1)
{
fclose (file);
return 0;
}
fseek (file, -4, SEEK_CUR);
// Check for MUS format
if (id == MAKE_ID('M','U','S',0x1a))
{
if (GSnd != NULL && opl_enable)
{
info = new OPLMUSSong (file, len);
}
if (info == NULL)
{
#ifdef _WIN32
if (snd_mididevice != -2)
{
info = new MUSSong2 (file, len);
}
else if (GSnd != NULL)
#endif // _WIN32
{
info = new TimiditySong (file, len);
}
}
}
// Check for MIDI format
else if (id == MAKE_ID('M','T','h','d'))
{
#ifdef _WIN32
if (snd_mididevice != -2)
{
info = new MIDISong2 (file, len);
}
else if (GSnd != NULL)
#endif // _WIN32
{
info = new TimiditySong (file, len);
}
}
// Check for SPC format
#ifdef _WIN32
else if (id == MAKE_ID('S','N','E','S') && len >= 66048)
{
char header[0x23];
if (fread (header, 1, 0x23, file) != 0x23)
{
fclose (file);
return 0;
}
fseek (file, -0x23, SEEK_CUR);
if (strncmp (header+4, "-SPC700 Sound File Data", 23) == 0)
{
info = new SPCSong (file, len);
}
}
#endif
// Check for FLAC format
else if (id == MAKE_ID('f','L','a','C'))
{
info = new FLACSong (file, len);
file = NULL;
}
// Check for RDosPlay raw OPL format
else if (id == MAKE_ID('R','A','W','A') && len >= 12)
{
DWORD fullsig[2];
if (fread (fullsig, 4, 2, file) != 2)
{
fclose (file);
return 0;
}
fseek (file, -8, SEEK_CUR);
if (fullsig[1] == MAKE_ID('D','A','T','A'))
{
info = new OPLMUSSong (file, len);
}
}
// Check for Martin Fernandez's modified IMF format
else if (id == MAKE_ID('A','D','L','I'))
{
char fullhead[6];
if (fread (fullhead, 1, 6, file) != 6)
{
fclose (file);
return 0;
}
fseek (file, -6, SEEK_CUR);
if (fullhead[4] == 'B' && fullhead[5] == 1)
{
info = new OPLMUSSong (file, len);
}
}
if (info == NULL)
{
// Check for CDDA "format"
if (id == (('R')|(('I')<<8)|(('F')<<16)|(('F')<<24)))
{
DWORD subid;
fseek (file, 8, SEEK_CUR);
if (fread (&subid, 4, 1, file) != 1)
{
fclose (file);
return 0;
}
fseek (file, -12, SEEK_CUR);
if (subid == (('C')|(('D')<<8)|(('D')<<16)|(('A')<<24)))
{
// This is a CDDA file
info = new CDDAFile (file, len);
}
}
// no FMOD => no modules/streams
// 1024 bytes is an arbitrary restriction. It's assumed that anything
// smaller than this can't possibly be a valid music file if it hasn't
// been identified already, so don't even bother trying to load it.
if (info == NULL && GSnd != NULL && len >= 1024)
{
// First try loading it as MOD, then as a stream
fclose (file);
file = NULL;
info = new MODSong (filename, offset, len);
if (!info->IsValid ())
{
delete info;
info = new StreamSong (filename, offset, len);
}
}
}
if (info && !info->IsValid ())
{
delete info;
info = NULL;
}
if (file != NULL)
{
fclose (file);
}
return info;
}
void *I_RegisterCDSong (int track, int id)
{
MusInfo *info = new CDSong (track, id);
if (info && !info->IsValid ())
{
delete info;
info = NULL;
}
return info;
}
// Is the song playing?
bool I_QrySongPlaying (void *handle)
{
MusInfo *info = (MusInfo *)handle;
return info ? info->IsPlaying () : false;
}
// Change to a different part of the song
bool I_SetSongPosition (void *handle, int order)
{
MusInfo *info = (MusInfo *)handle;
return info ? info->SetPosition (order) : false;
}
// Sets relative music volume. Takes $musicvolume in SNDINFO into consideration
void I_SetMusicVolume (float factor)
{
factor = clamp<float>(factor, 0, 2.0f);
relative_volume = saved_relative_volume * factor;
#ifdef _WIN32
snd_midivolume.Callback();
#endif
snd_musicvolume.Callback();
}
CCMD(testmusicvol)
{
if (argv.argc() > 1)
{
relative_volume = (float)strtod(argv[1], NULL);
#ifdef _WIN32
snd_midivolume.Callback();
#endif
snd_musicvolume.Callback();
}
}