167 lines
4.2 KiB
C
167 lines
4.2 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include "ibm.h"
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#include "device.h"
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#include "filters.h"
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#include "sound_opl.h"
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#include "sound.h"
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#include "sound_adlib.h"
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#include "sound_adlibgold.h"
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#include "sound_pas16.h"
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#include "sound_sb.h"
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#include "sound_sb_dsp.h"
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#include "sound_wss.h"
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#include "timer.h"
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int sound_card_current = 0;
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static int sound_card_last = 0;
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typedef struct
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{
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char name[32];
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device_t *device;
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} SOUND_CARD;
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static SOUND_CARD sound_cards[] =
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{
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{"None", NULL},
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{"Adlib", &adlib_device},
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{"Sound Blaster 1.0", &sb_1_device},
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{"Sound Blaster 1.5", &sb_15_device},
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{"Sound Blaster 2.0", &sb_2_device},
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{"Sound Blaster Pro v1", &sb_pro_v1_device},
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{"Sound Blaster Pro v2", &sb_pro_v2_device},
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{"Sound Blaster 16", &sb_16_device},
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{"Sound Blaster AWE32", &sb_awe32_device},
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{"Adlib Gold", &adgold_device},
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{"Windows Sound System", &wss_device},
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{"Pro Audio Spectrum 16", &pas16_device},
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{"", NULL}
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};
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int sound_card_available(int card)
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{
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if (sound_cards[card].device)
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return device_available(sound_cards[card].device);
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return 1;
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}
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char *sound_card_getname(int card)
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{
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return sound_cards[card].name;
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}
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device_t *sound_card_getdevice(int card)
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{
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return sound_cards[card].device;
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}
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int sound_card_has_config(int card)
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{
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if (!sound_cards[card].device)
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return 0;
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return sound_cards[card].device->config ? 1 : 0;
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}
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void sound_card_init()
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{
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if (sound_cards[sound_card_current].device)
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device_add(sound_cards[sound_card_current].device);
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sound_card_last = sound_card_current;
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}
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static struct
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{
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void (*poll)(void *p);
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void (*get_buffer)(int16_t *buffer, int len, void *p);
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void *priv;
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} sound_handlers[8];
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static int sound_handlers_num;
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static int sound_poll_time = 0, sound_get_buffer_time = 0;
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int soundon = 1;
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static int16_t cd_buffer[SOUNDBUFLEN * 2];
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void sound_cd_poll(void *p)
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{
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}
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void sound_cd_get_buffer(int16_t *buffer, int len, void *p)
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{
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int pos, c;
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ioctl_audio_callback(cd_buffer, (len * 2 * 441) / 480);
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pos = 0;
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for (c = 0; c < len * 2; c+=2)
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{
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buffer[c] += cd_buffer[((pos >> 16) << 1)] / 2;
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buffer[c + 1] += cd_buffer[((pos >> 16) << 1) + 1] / 2;
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pos += 60211; //(44100 * 65536) / 48000;
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}
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}
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static uint16_t *outbuffer;
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void sound_init()
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{
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initalmain(0,NULL);
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inital();
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outbuffer = malloc(SOUNDBUFLEN * 2 * sizeof(int16_t));
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sound_add_handler(sound_cd_poll, sound_cd_get_buffer, NULL);
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}
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void sound_add_handler(void (*poll)(void *p), void (*get_buffer)(int16_t *buffer, int len, void *p), void *p)
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{
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sound_handlers[sound_handlers_num].poll = poll;
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sound_handlers[sound_handlers_num].get_buffer = get_buffer;
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sound_handlers[sound_handlers_num].priv = p;
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sound_handlers_num++;
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}
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void sound_poll(void *priv)
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{
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int c;
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sound_poll_time += (int)((double)TIMER_USEC * (1000000.0 / 48000.0));
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for (c = 0; c < sound_handlers_num; c++)
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sound_handlers[c].poll(sound_handlers[c].priv);
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}
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FILE *soundf;
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void sound_get_buffer(void *priv)
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{
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int c;
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sound_get_buffer_time += (TIMER_USEC * (1000000 / 10));
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memset(outbuffer, 0, SOUNDBUFLEN * 2 * sizeof(int16_t));
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for (c = 0; c < sound_handlers_num; c++)
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sound_handlers[c].get_buffer(outbuffer, SOUNDBUFLEN, sound_handlers[c].priv);
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/* if (!soundf) soundf=fopen("sound.pcm","wb");
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fwrite(outbuffer,(SOUNDBUFLEN)*2*2,1,soundf);*/
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if (soundon) givealbuffer(outbuffer);
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}
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void sound_reset()
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{
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timer_add(sound_poll, &sound_poll_time, TIMER_ALWAYS_ENABLED, NULL);
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timer_add(sound_get_buffer, &sound_get_buffer_time, TIMER_ALWAYS_ENABLED, NULL);
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sound_handlers_num = 0;
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}
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