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#include <stdint.h>
#include <stdlib.h>
#include <dos.h>
#include "mikmod.h"
#include "ubox_sound.h"
static uint8_t has_sound = 0;
static uint8_t cur = 0;
static uint32_t voice = 0;
static SAMPLE **effects = NULL;
static uint8_t effects_cnt = 0;
static MODULE *music = NULL;
uint8_t ubox_sound_init(const ubox_sound_data *mus, const ubox_sound_data *efx, uint8_t efx_cnt)
{
MikMod_InitThreads();
MikMod_RegisterDriver(&drv_sb);
MikMod_RegisterLoader(&load_it);
md_mode |= DMODE_SOFT_SNDFX | DMODE_SOFT_MUSIC;
md_volume = 128;
md_sndfxvolume = 128;
md_pansep = 0;
md_mixfreq = 22050;
if (MikMod_Init(NULL))
/* has_sound is 0 */
return 1;
if (efx && efx_cnt)
{
effects = (SAMPLE **)calloc(efx_cnt, sizeof(SAMPLE *));
if (!effects)
return 0;
for (uint8_t i = 0; i < efx_cnt; i++)
{
effects[i] = Sample_LoadMem(efx[i].data, efx[i].len);
if (!effects[i])
return 0;
}
/* 1 voice for effects */
if (MikMod_SetNumVoices(-1, 1))
/* has_sound is 0 */
return 1;
}
/* needs a song playing to get effects; have a "silence" pattern on 0 */
if (mus)
{
music = Player_LoadMem(mus->data, mus->len, 8, 0);
if (!music)
return 0;
Player_Start(music);
}
if (MikMod_EnableOutput())
/* has_sound is 0 */
return 1;
has_sound = 1;
return 1;
}
volatile static uint8_t divider = 0;
void ubox_sound_update()
{
if (!has_sound)
return;
if (++divider == UBOX_SOUND_DIVIDER)
{
divider = 0;
MikMod_Update();
}
}
void ubox_sound_mute()
{
if (has_sound)
MikMod_DisableOutput();
}
void ubox_sound_unmute()
{
if (has_sound)
MikMod_EnableOutput();
}
void ubox_sound_free()
{
if (!has_sound)
return;
MikMod_DisableOutput();
if (music)
Player_Free(music);
if (effects && effects_cnt)
{
for (uint8_t i = 0; i < effects_cnt; i++)
if (effects[i])
Sample_Free(effects[i]);
free(effects);
}
MikMod_Exit();
}
void ubox_sound_music_pattern(uint16_t pat)
{
if (has_sound && music)
Player_SetPosition(pat);
}
void ubox_sound_play_efx(uint8_t efxno)
{
if (has_sound && effects)
{
if (cur > efxno && !Voice_Stopped(voice))
return;
cur = efxno;
voice = Sample_Play(effects[cur], 0, 0);
}
}
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