565 lines
14 KiB
C
565 lines
14 KiB
C
/*
|
|
*
|
|
* ALSA digital audio support
|
|
*
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <alsa/asoundlib.h>
|
|
#include <pthread.h>
|
|
|
|
#include "error.h"
|
|
#include "fix.h"
|
|
#include "vecmat.h"
|
|
#include "gr.h" // needed for piggy.h
|
|
#include "piggy.h"
|
|
#include "digi.h"
|
|
#include "sounds.h"
|
|
#include "wall.h"
|
|
#include "newdemo.h"
|
|
#include "kconfig.h"
|
|
|
|
//edited 05/17/99 Matt Mueller - added ifndef NO_ASM
|
|
//added on 980905 by adb to add inline fixmul for mixer on i386
|
|
#ifndef NO_ASM
|
|
#ifdef __i386__
|
|
#define do_fixmul(x,y) \
|
|
({ \
|
|
int _ax, _dx; \
|
|
asm("imull %2\n\tshrdl %3,%1,%0" \
|
|
: "=a"(_ax), "=d"(_dx) \
|
|
: "rm"(y), "i"(16), "0"(x)); \
|
|
_ax; \
|
|
})
|
|
extern inline fix fixmul(fix x, fix y) { return do_fixmul(x,y); }
|
|
#endif
|
|
#endif
|
|
//end edit by adb
|
|
//end edit -MM
|
|
|
|
//changed on 980905 by adb to increase number of concurrent sounds
|
|
#define MAX_SOUND_SLOTS 32
|
|
//end changes by adb
|
|
#define SOUND_BUFFER_SIZE 512
|
|
|
|
#define MIN_VOLUME 10
|
|
|
|
/* This table is used to add two sound values together and pin
|
|
* the value to avoid overflow. (used with permission from ARDI)
|
|
* DPH: Taken from SDL/src/SDL_mixer.c.
|
|
*/
|
|
static const ubyte mix8[] =
|
|
{
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03,
|
|
0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
|
|
0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
|
|
0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24,
|
|
0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
|
|
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A,
|
|
0x3B, 0x3C, 0x3D, 0x3E, 0x3F, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45,
|
|
0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
|
|
0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B,
|
|
0x5C, 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
|
|
0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71,
|
|
0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C,
|
|
0x7D, 0x7E, 0x7F, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
|
|
0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x91, 0x92,
|
|
0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D,
|
|
0x9E, 0x9F, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8,
|
|
0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3,
|
|
0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE,
|
|
0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9,
|
|
0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4,
|
|
0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
|
|
0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA,
|
|
0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5,
|
|
0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
|
|
};
|
|
|
|
//added/changed on 980905 by adb to make sfx volume work, on 990221 by adb changed F1_0 to F1_0 / 2
|
|
#define SOUND_MAX_VOLUME (F1_0 / 2)
|
|
|
|
int digi_volume = SOUND_MAX_VOLUME;
|
|
//end edit by adb
|
|
|
|
static int digi_initialised = 0;
|
|
|
|
struct sound_slot {
|
|
int soundno;
|
|
int playing; // Is there a sample playing on this channel?
|
|
int looped; // Play this sample looped?
|
|
fix pan; // 0 = far left, 1 = far right
|
|
fix volume; // 0 = nothing, 1 = fully on
|
|
//changed on 980905 by adb from char * to unsigned char *
|
|
unsigned char *samples;
|
|
//end changes by adb
|
|
unsigned int length; // Length of the sample
|
|
unsigned int position; // Position we are at at the moment.
|
|
int soundobj; // Which soundobject is on this channel
|
|
int persistent; // This can't be pre-empted
|
|
} SoundSlots[MAX_SOUND_SLOTS];
|
|
|
|
static int digi_max_channels = 16;
|
|
|
|
static int next_channel = 0;
|
|
|
|
/* Threading/ALSA stuff */
|
|
#define LOCK() pthread_mutex_lock(&mutex)
|
|
#define UNLOCK() pthread_mutex_unlock(&mutex)
|
|
snd_pcm_t *snd_devhandle;
|
|
pthread_t thread_id;
|
|
pthread_mutex_t mutex;
|
|
|
|
|
|
/* Audio mixing callback */
|
|
//changed on 980905 by adb to cleanup, add pan support and optimize mixer
|
|
static void audio_mixcallback(void *userdata, ubyte *stream, int len)
|
|
{
|
|
ubyte *streamend = stream + len;
|
|
struct sound_slot *sl;
|
|
|
|
for (sl = SoundSlots; sl < SoundSlots + MAX_SOUND_SLOTS; sl++)
|
|
{
|
|
if (sl->playing)
|
|
{
|
|
ubyte *sldata = sl->samples + sl->position, *slend = sl->samples + sl->length;
|
|
ubyte *sp = stream;
|
|
signed char v;
|
|
fix vl, vr;
|
|
int x;
|
|
|
|
if ((x = sl->pan) & 0x8000)
|
|
{
|
|
vl = 0x20000 - x * 2;
|
|
vr = 0x10000;
|
|
}
|
|
else
|
|
{
|
|
vl = 0x10000;
|
|
vr = x * 2;
|
|
}
|
|
vl = fixmul(vl, (x = sl->volume));
|
|
vr = fixmul(vr, x);
|
|
while (sp < streamend)
|
|
{
|
|
if (sldata == slend)
|
|
{
|
|
if (!sl->looped)
|
|
{
|
|
sl->playing = 0;
|
|
break;
|
|
}
|
|
sldata = sl->samples;
|
|
}
|
|
v = *(sldata++) - 0x80;
|
|
*sp = mix8[*sp + fixmul(v, vl) + 0x80];
|
|
sp++;
|
|
*sp = mix8[*sp + fixmul(v, vr) + 0x80];
|
|
sp++;
|
|
}
|
|
sl->position = sldata - sl->samples;
|
|
}
|
|
}
|
|
}
|
|
//end changes by adb
|
|
|
|
void *mixer_thread(void *data)
|
|
{
|
|
int err;
|
|
ubyte buffer[SOUND_BUFFER_SIZE];
|
|
|
|
/* Allow ourselves to be asynchronously cancelled */
|
|
pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
|
|
while (1)
|
|
{
|
|
memset(buffer, 0x80, SOUND_BUFFER_SIZE);
|
|
LOCK();
|
|
audio_mixcallback(NULL,buffer,512);
|
|
UNLOCK();
|
|
again:
|
|
err = snd_pcm_writei(snd_devhandle, buffer, SOUND_BUFFER_SIZE / 2);
|
|
|
|
if (err == -EPIPE)
|
|
{
|
|
// Sound buffer underrun
|
|
err = snd_pcm_prepare(snd_devhandle);
|
|
if (err < 0)
|
|
{
|
|
con_printf(CON_CRITICAL, "Can't recover from underrun: %s\n", snd_strerror(err));
|
|
}
|
|
}
|
|
else if (err == -EAGAIN)
|
|
{
|
|
goto again;
|
|
}
|
|
else if (err != SOUND_BUFFER_SIZE / 2)
|
|
{
|
|
// Each frame has size 2 bytes - hence we expect SOUND_BUFFER_SIZE/2
|
|
// frames to be written.
|
|
con_printf(CON_CRITICAL, "Unknown err %d: %s\n", err, snd_strerror(err));
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/* Initialise audio devices. */
|
|
int digi_init()
|
|
{
|
|
int err, tmp;
|
|
char *device = "plughw:0,0";
|
|
snd_pcm_hw_params_t *params;
|
|
pthread_attr_t attr;
|
|
pthread_mutexattr_t mutexattr;
|
|
|
|
//added on 980905 by adb to init sound kill system
|
|
memset(SampleHandles, 255, sizeof(SampleHandles));
|
|
//end edit by adb
|
|
|
|
/* Open the ALSA sound device */
|
|
if ((err = snd_pcm_open(&snd_devhandle, device, SND_PCM_STREAM_PLAYBACK)) < 0)
|
|
{
|
|
con_printf(CON_CRITICAL, "open failed: %s\n", snd_strerror( err ));
|
|
return -1;
|
|
}
|
|
|
|
snd_pcm_hw_params_alloca(¶ms);
|
|
err = snd_pcm_hw_params_any(snd_devhandle, params);
|
|
if (err < 0)
|
|
{
|
|
con_printf(CON_CRITICAL,"ALSA: Error %s\n", snd_strerror(err));
|
|
return -1;
|
|
}
|
|
err = snd_pcm_hw_params_set_access(snd_devhandle, params, SND_PCM_ACCESS_RW_INTERLEAVED);
|
|
if (err < 0)
|
|
{
|
|
con_printf(CON_CRITICAL,"ALSA: Error %s\n", snd_strerror(err));
|
|
return -1;
|
|
}
|
|
err = snd_pcm_hw_params_set_format(snd_devhandle, params, SND_PCM_FORMAT_U8);
|
|
if (err < 0)
|
|
{
|
|
con_printf(CON_CRITICAL,"ALSA: Error %s\n", snd_strerror(err));
|
|
return -1;
|
|
}
|
|
err = snd_pcm_hw_params_set_channels(snd_devhandle, params, 2);
|
|
if (err < 0)
|
|
{
|
|
con_printf(CON_CRITICAL,"ALSA: Error %s\n", snd_strerror(err));
|
|
return -1;
|
|
}
|
|
tmp = 11025;
|
|
err = snd_pcm_hw_params_set_rate_near(snd_devhandle, params, &tmp, NULL);
|
|
if (err < 0)
|
|
{
|
|
con_printf(CON_CRITICAL,"ALSA: Error %s\n", snd_strerror(err));
|
|
return -1;
|
|
}
|
|
snd_pcm_hw_params_set_periods(snd_devhandle, params, 3, 0);
|
|
snd_pcm_hw_params_set_buffer_size(snd_devhandle,params, (SOUND_BUFFER_SIZE*3)/2);
|
|
|
|
err = snd_pcm_hw_params(snd_devhandle, params);
|
|
if (err < 0)
|
|
{
|
|
con_printf(CON_CRITICAL,"ALSA: Error %s\n", snd_strerror(err));
|
|
return -1;
|
|
}
|
|
|
|
/* Start the mixer thread */
|
|
|
|
/* We really should check the results of these */
|
|
pthread_mutexattr_init(&mutexattr);
|
|
pthread_mutex_init(&mutex,&mutexattr);
|
|
pthread_mutexattr_destroy(&mutexattr);
|
|
|
|
if (pthread_attr_init(&attr) != 0) {
|
|
con_printf(CON_CRITICAL, "failed to init attr\n");
|
|
snd_pcm_close( snd_devhandle );
|
|
return -1;
|
|
}
|
|
|
|
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
|
|
|
|
pthread_create(&thread_id,&attr,mixer_thread,NULL);
|
|
pthread_attr_destroy(&attr);
|
|
|
|
digi_initialised = 1;
|
|
return 0;
|
|
}
|
|
|
|
/* Toggle audio */
|
|
void digi_reset() { }
|
|
|
|
/* Shut down audio */
|
|
void digi_close()
|
|
{
|
|
if (!digi_initialised) return;
|
|
pthread_cancel(thread_id);
|
|
digi_initialised = 0;
|
|
pthread_mutex_destroy(&mutex);
|
|
snd_pcm_close(snd_devhandle);
|
|
}
|
|
|
|
void digi_stop_all_channels()
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < MAX_SOUND_SLOTS; i++)
|
|
digi_stop_sound(i);
|
|
}
|
|
|
|
|
|
extern void digi_end_soundobj(int channel);
|
|
extern int SoundQ_channel;
|
|
extern void SoundQ_end();
|
|
int verify_sound_channel_free(int channel);
|
|
|
|
// Volume 0-F1_0
|
|
int digi_start_sound(short soundnum, fix volume, int pan, int looping, int loop_start, int loop_end, int soundobj)
|
|
{
|
|
int i, starting_channel;
|
|
|
|
if (!digi_initialised) return -1;
|
|
|
|
if (soundnum < 0) return -1;
|
|
|
|
LOCK();
|
|
Assert(GameSounds[soundnum].data != (void *)-1);
|
|
|
|
starting_channel = next_channel;
|
|
|
|
while(1)
|
|
{
|
|
if (!SoundSlots[next_channel].playing)
|
|
break;
|
|
|
|
if (!SoundSlots[next_channel].persistent)
|
|
break; // use this channel!
|
|
|
|
next_channel++;
|
|
if (next_channel >= digi_max_channels)
|
|
next_channel = 0;
|
|
if (next_channel == starting_channel)
|
|
{
|
|
UNLOCK();
|
|
return -1;
|
|
}
|
|
}
|
|
if (SoundSlots[next_channel].playing)
|
|
{
|
|
SoundSlots[next_channel].playing = 0;
|
|
if (SoundSlots[next_channel].soundobj > -1)
|
|
{
|
|
digi_end_soundobj(SoundSlots[next_channel].soundobj);
|
|
}
|
|
if (SoundQ_channel == next_channel)
|
|
SoundQ_end();
|
|
}
|
|
|
|
#ifndef NDEBUG
|
|
verify_sound_channel_free(next_channel);
|
|
#endif
|
|
|
|
SoundSlots[next_channel].soundno = soundnum;
|
|
SoundSlots[next_channel].samples = GameSounds[soundnum].data;
|
|
SoundSlots[next_channel].length = GameSounds[soundnum].length;
|
|
SoundSlots[next_channel].volume = fixmul(digi_volume, volume);
|
|
SoundSlots[next_channel].pan = pan;
|
|
SoundSlots[next_channel].position = 0;
|
|
SoundSlots[next_channel].looped = looping;
|
|
SoundSlots[next_channel].playing = 1;
|
|
SoundSlots[next_channel].soundobj = soundobj;
|
|
SoundSlots[next_channel].persistent = 0;
|
|
if ((soundobj > -1) || (looping) || (volume > F1_0))
|
|
SoundSlots[next_channel].persistent = 1;
|
|
|
|
i = next_channel;
|
|
next_channel++;
|
|
if (next_channel >= digi_max_channels)
|
|
next_channel = 0;
|
|
UNLOCK();
|
|
|
|
return i;
|
|
}
|
|
|
|
// Returns the channel a sound number is playing on, or
|
|
// -1 if none.
|
|
int digi_find_channel(int soundno)
|
|
{
|
|
if (!digi_initialised)
|
|
return -1;
|
|
|
|
if (soundno < 0 )
|
|
return -1;
|
|
|
|
if (GameSounds[soundno].data == NULL)
|
|
{
|
|
Int3();
|
|
return -1;
|
|
}
|
|
|
|
//FIXME: not implemented
|
|
return -1;
|
|
}
|
|
|
|
|
|
//added on 980905 by adb from original source to make sfx volume work
|
|
void digi_set_digi_volume( int dvolume )
|
|
{
|
|
dvolume = fixmuldiv( dvolume, SOUND_MAX_VOLUME, 0x7fff);
|
|
if ( dvolume > SOUND_MAX_VOLUME )
|
|
digi_volume = SOUND_MAX_VOLUME;
|
|
else if ( dvolume < 0 )
|
|
digi_volume = 0;
|
|
else
|
|
digi_volume = dvolume;
|
|
|
|
if ( !digi_initialised ) return;
|
|
|
|
digi_sync_sounds();
|
|
}
|
|
//end edit by adb
|
|
|
|
void digi_set_volume(int dvolume, int mvolume)
|
|
{
|
|
digi_set_digi_volume(dvolume);
|
|
digi_set_midi_volume(mvolume);
|
|
}
|
|
|
|
int digi_is_sound_playing(int soundno)
|
|
{
|
|
int i;
|
|
|
|
soundno = digi_xlat_sound(soundno);
|
|
|
|
LOCK();
|
|
for (i = 0; i < MAX_SOUND_SLOTS; i++)
|
|
//changed on 980905 by adb: added SoundSlots[i].playing &&
|
|
if (SoundSlots[i].playing && SoundSlots[i].soundno == soundno)
|
|
//end changes by adb
|
|
{ UNLOCK(); return 1; }
|
|
UNLOCK();
|
|
return 0;
|
|
}
|
|
|
|
|
|
//added on 980905 by adb to make sound channel setting work
|
|
void digi_set_max_channels(int n) {
|
|
digi_max_channels = n;
|
|
|
|
if ( digi_max_channels < 1 )
|
|
digi_max_channels = 1;
|
|
if (digi_max_channels > MAX_SOUND_SLOTS)
|
|
digi_max_channels = MAX_SOUND_SLOTS;
|
|
|
|
if ( !digi_initialised ) return;
|
|
|
|
digi_stop_all_channels();
|
|
}
|
|
|
|
int digi_get_max_channels() {
|
|
return digi_max_channels;
|
|
}
|
|
// end edit by adb
|
|
|
|
int digi_is_channel_playing(int channel)
|
|
{
|
|
if (!digi_initialised)
|
|
return 0;
|
|
|
|
LOCK();
|
|
if (SoundSlots[channel].playing)
|
|
{
|
|
UNLOCK();
|
|
return 1;
|
|
}
|
|
UNLOCK();
|
|
return 0;
|
|
}
|
|
|
|
void digi_set_channel_volume(int channel, int volume)
|
|
{
|
|
if (!digi_initialised)
|
|
return;
|
|
|
|
LOCK();
|
|
if (SoundSlots[channel].playing)
|
|
SoundSlots[channel].volume = fixmuldiv(volume, digi_volume, F1_0);
|
|
UNLOCK();
|
|
}
|
|
|
|
void digi_set_channel_pan(int channel, int pan)
|
|
{
|
|
if (!digi_initialised)
|
|
return;
|
|
|
|
LOCK();
|
|
if (SoundSlots[channel].playing)
|
|
SoundSlots[channel].pan = pan;
|
|
UNLOCK();
|
|
}
|
|
|
|
void digi_stop_sound(int channel)
|
|
{
|
|
LOCK();
|
|
SoundSlots[channel].playing = 0;
|
|
SoundSlots[channel].soundobj = -1;
|
|
SoundSlots[channel].persistent = 0;
|
|
UNLOCK();
|
|
}
|
|
|
|
void digi_end_sound(int channel)
|
|
{
|
|
if (!digi_initialised)
|
|
return;
|
|
|
|
LOCK();
|
|
if (SoundSlots[channel].playing)
|
|
{
|
|
SoundSlots[channel].soundobj = -1;
|
|
SoundSlots[channel].persistent = 0;
|
|
}
|
|
UNLOCK();
|
|
}
|
|
|
|
|
|
// MIDI stuff follows.
|
|
//added/killed on 11/25/98 by Matthew Mueller
|
|
//void digi_set_midi_volume( int mvolume ) { }
|
|
//void digi_play_midi_song( char * filename, char * melodic_bank, char * drum_bank, int loop ) {}
|
|
//void digi_stop_current_song()
|
|
//{
|
|
//#ifdef HMIPLAY
|
|
// char buf[10];
|
|
//
|
|
// sprintf(buf,"s");
|
|
// send_ipc(buf);
|
|
//#endif
|
|
//}
|
|
//end this section kill - MM
|