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// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// Copyright(C) 1993-1996 Id Software, Inc.
// Copyright(C) 1993-2008 Raven Software
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
//
//-----------------------------------------------------------------------------

// I_SOUND.C

#include <stdio.h>
#include "h2def.h"
#include "dmx.h"
#include "sounds.h"
#include "i_sound.h"

/*
===============
=
= I_StartupTimer
=
===============
*/

int tsm_ID = -1;

void I_StartupTimer(void)
{
#ifndef NOTIMER
    extern int I_TimerISR(void);

    ST_Message("  I_StartupTimer()\n");
    // installs master timer.  Must be done before StartupTimer()!
    TSM_Install(SND_TICRATE);
    tsm_ID = TSM_NewService(I_TimerISR, 35, 255, 0);    // max priority
    if (tsm_ID == -1)
    {
        I_Error("Can't register 35 Hz timer w/ DMX library");
    }
#endif
}

void I_ShutdownTimer(void)
{
    TSM_DelService(tsm_ID);
    TSM_Remove();
}

/*
 *
 *                           SOUND HEADER & DATA
 *
 *
 */

// sound information
#if 0
const char *dnames[] = { "None",
    "PC_Speaker",
    "Adlib",
    "Sound_Blaster",
    "ProAudio_Spectrum16",
    "Gravis_Ultrasound",
    "MPU",
    "AWE32"
};
#endif

const char snd_prefixen[] = { 'P', 'P', 'A', 'S', 'S', 'S', 'M',
    'M', 'M', 'S'
};

int snd_Channels;
int snd_DesiredMusicDevice, snd_DesiredSfxDevice;
int snd_MusicDevice,            // current music card # (index to dmxCodes)
  snd_SfxDevice,                // current sfx card # (index to dmxCodes)
  snd_MaxVolume,                // maximum volume for sound
  snd_MusicVolume;              // maximum volume for music
int dmxCodes[NUM_SCARDS];       // the dmx code for a given card

int snd_SBport, snd_SBirq, snd_SBdma;   // sound blaster variables
int snd_Mport;                  // midi variables

extern boolean snd_MusicAvail,  // whether music is available
  snd_SfxAvail;                 // whether sfx are available

void I_PauseSong(int handle)
{
    MUS_PauseSong(handle);
}

void I_ResumeSong(int handle)
{
    MUS_ResumeSong(handle);
}

void I_SetMusicVolume(int volume)
{
    MUS_SetMasterVolume(volume * 8);
//  snd_MusicVolume = volume;
}

void I_SetSfxVolume(int volume)
{
    snd_MaxVolume = volume;     // THROW AWAY?
}

/*
 *
 *                              SONG API
 *
 */

int I_RegisterSong(void *data)
{
    int rc = MUS_RegisterSong(data);
#ifdef SNDDEBUG
    if (rc < 0)
        ST_Message("    MUS_Reg() returned %d\n", rc);
#endif
    return rc;
}

void I_UnRegisterSong(int handle)
{
    int rc = MUS_UnregisterSong(handle);
#ifdef SNDDEBUG
    if (rc < 0)
        ST_Message("    MUS_Unreg() returned %d\n", rc);
#endif
}

int I_QrySongPlaying(int handle)
{
    int rc = MUS_QrySongPlaying(handle);
#ifdef SNDDEBUG
    if (rc < 0)
        ST_Message("    MUS_QrySP() returned %d\n", rc);
#endif
    return rc;
}

// Stops a song.  MUST be called before I_UnregisterSong().

void I_StopSong(int handle)
{
    int rc;
    rc = MUS_StopSong(handle);
#ifdef SNDDEBUG
    if (rc < 0)
        ST_Message("    MUS_StopSong() returned %d\n", rc);
#endif
/*
  // Fucking kluge pause
  {
	int s;
	extern volatile int ticcount;
	for (s=ticcount ; ticcount - s < 10 ; );
  }
*/
}

void I_PlaySong(int handle, boolean looping)
{
    int rc;
    rc = MUS_ChainSong(handle, looping ? handle : -1);
#ifdef SNDDEBUG
    if (rc < 0)
        ST_Message("    MUS_ChainSong() returned %d\n", rc);
#endif
    rc = MUS_PlaySong(handle, snd_MusicVolume);
#ifdef SNDDEBUG
    if (rc < 0)
        ST_Message("    MUS_PlaySong() returned %d\n", rc);
#endif

}

/*
 *
 *                                 SOUND FX API
 *
 */

// Gets lump nums of the named sound.  Returns pointer which will be
// passed to I_StartSound() when you want to start an SFX.  Must be
// sure to pass this to UngetSoundEffect() so that they can be
// freed!


int I_GetSfxLumpNum(sfxinfo_t * sound)
{
    return W_GetNumForName(sound->lumpname);

}

int I_StartSound(int id, void *data, int vol, int sep, int pitch,
                 int priority)
{
    return SFX_PlayPatch(data, pitch, sep, vol, 0, 0);
}

void I_StopSound(int handle)
{
//  extern volatile long gDmaCount;
//  long waittocount;
    SFX_StopPatch(handle);
//  waittocount = gDmaCount + 2;
//  while (gDmaCount < waittocount) ;
}

int I_SoundIsPlaying(int handle)
{
    return SFX_Playing(handle);
}

void I_UpdateSoundParams(int handle, int vol, int sep, int pitch)
{
    SFX_SetOrigin(handle, pitch, sep, vol);
}

/*
 *
 *                                                      SOUND STARTUP STUFF
 *
 *
 */

//
// Why PC's Suck, Reason #8712
//

void I_sndArbitrateCards(void)
{
    char tmp[160];
    boolean gus, adlib, pc, sb, midi;
    int i, rc, mputype, p, opltype, wait, dmxlump;

    snd_MusicDevice = snd_DesiredMusicDevice;
    snd_SfxDevice = snd_DesiredSfxDevice;

    // check command-line parameters- overrides config file
    //
    if (M_CheckParm("-nosound"))
        snd_MusicDevice = snd_SfxDevice = snd_none;
    if (M_CheckParm("-nosfx"))
        snd_SfxDevice = snd_none;
    if (M_CheckParm("-nomusic"))
        snd_MusicDevice = snd_none;

    if (snd_MusicDevice > snd_MPU && snd_MusicDevice <= snd_MPU3)
        snd_MusicDevice = snd_MPU;
    if (snd_MusicDevice == snd_SB)
        snd_MusicDevice = snd_Adlib;
    if (snd_MusicDevice == snd_PAS)
        snd_MusicDevice = snd_Adlib;

    // figure out what i've got to initialize
    //
    gus = snd_MusicDevice == snd_GUS || snd_SfxDevice == snd_GUS;
    sb = snd_SfxDevice == snd_SB || snd_MusicDevice == snd_SB;
    adlib = snd_MusicDevice == snd_Adlib;
    pc = snd_SfxDevice == snd_PC;
    midi = snd_MusicDevice == snd_MPU;

    // initialize whatever i've got
    //
    if (gus)
    {
        if (GF1_Detect())
            ST_Message("    Dude.  The GUS ain't responding.\n");
        else
        {
            dmxlump = W_GetNumForName("dmxgus");
            GF1_SetMap(W_CacheLumpNum(dmxlump, PU_CACHE),
                       lumpinfo[dmxlump].size);
        }

    }
    if (sb)
    {
        if (debugmode)
        {
            ST_Message("  Sound cfg p=0x%x, i=%d, d=%d\n",
                       snd_SBport, snd_SBirq, snd_SBdma);
        }
        if (SB_Detect(&snd_SBport, &snd_SBirq, &snd_SBdma, 0))
        {
            ST_Message("    SB isn't responding at p=0x%x, i=%d, d=%d\n",
                       snd_SBport, snd_SBirq, snd_SBdma);
        }
        else
            SB_SetCard(snd_SBport, snd_SBirq, snd_SBdma);

        if (debugmode)
        {
            ST_Message("    SB_Detect returned p=0x%x, i=%d, d=%d\n",
                       snd_SBport, snd_SBirq, snd_SBdma);
        }
    }

    if (adlib)
    {
        if (AL_Detect(&wait, 0))
        {
            ST_Message("    Dude.  The Adlib isn't responding.\n");
        }
        else
        {
            AL_SetCard(wait, W_CacheLumpName("genmidi", PU_STATIC));
        }
    }

    if (midi)
    {
        if (debugmode)
        {
            ST_Message("    cfg p=0x%x\n", snd_Mport);
        }

        if (MPU_Detect(&snd_Mport, &i))
        {
            ST_Message("    The MPU-401 isn't reponding @ p=0x%x.\n",
                       snd_Mport);
        }
        else
            MPU_SetCard(snd_Mport);
    }

}

// inits all sound stuff

void I_StartupSound(void)
{
    int rc, i;

    if (debugmode)
        ST_Message("I_StartupSound: Hope you hear a pop.\n");

    // initialize dmxCodes[]
    dmxCodes[0] = 0;
    dmxCodes[snd_PC] = AHW_PC_SPEAKER;
    dmxCodes[snd_Adlib] = AHW_ADLIB;
    dmxCodes[snd_SB] = AHW_SOUND_BLASTER;
    dmxCodes[snd_PAS] = AHW_MEDIA_VISION;
    dmxCodes[snd_GUS] = AHW_ULTRA_SOUND;
    dmxCodes[snd_MPU] = AHW_MPU_401;
    dmxCodes[snd_MPU2] = AHW_MPU_401;
    dmxCodes[snd_MPU3] = AHW_MPU_401;
    dmxCodes[snd_AWE] = AHW_AWE32;
    dmxCodes[snd_CDMUSIC] = 0;

    // inits sound library timer stuff
    I_StartupTimer();

    // pick the sound cards i'm going to use
    //
    I_sndArbitrateCards();

    if (debugmode)
    {
        ST_Message("    Music device #%d & dmxCode=%d,", snd_MusicDevice,
                   dmxCodes[snd_MusicDevice]);
        ST_Message(" Sfx device #%d & dmxCode=%d\n", snd_SfxDevice,
                   dmxCodes[snd_SfxDevice]);
    }

    // inits DMX sound library
    ST_Message("    Calling DMX_Init...");
    rc = DMX_Init(SND_TICRATE, SND_MAXSONGS, dmxCodes[snd_MusicDevice],
                  dmxCodes[snd_SfxDevice]);

    if (debugmode)
    {
        ST_Message(" DMX_Init() returned %d\n", rc);
    }

}

// shuts down all sound stuff

void I_ShutdownSound(void)
{
    DMX_DeInit();
    I_ShutdownTimer();
}

void I_SetChannels(int channels)
{
    WAV_PlayMode(channels, SND_SAMPLERATE);
}