// Initialize SEAL library ----------------------------------------------------
int Sound_Init_SEAL (void)
{
if (AInitialize() != AUDIO_ERROR_NONE)
{
Quit_Msg (Msg_Get (MSG_Sound_Init_Error_SEAL));
return (MEKA_ERR_FAIL);
}
return (MEKA_ERR_OK);
}
int main(void)
{
AUDIOINFO info;
AUDIOCAPS caps;
UINT rc, nDevId;
/* initialize audio library */
AInitialize();
/* show registered device drivers */
printf("List of registered devices:\n");
for (nDevId = 0; nDevId < AGetAudioNumDevs(); nDevId++) {
AGetAudioDevCaps(nDevId, &caps);
printf(" %2d. %s\n", nDevId, caps.szProductName);
}
printf("\n");
/*
* NOTE: Here we can use any of the above devices, or we can
* use the virtual device AUDIO_DEVICE_MAPPER for detection.
*/
/* open audio device */
info.nDeviceId = AUDIO_DEVICE_MAPPER;
info.wFormat = AUDIO_FORMAT_16BITS | AUDIO_FORMAT_STEREO;
info.nSampleRate = 44100;
if ((rc = AOpenAudio(&info)) != AUDIO_ERROR_NONE) {
CHAR szText[80];
AGetErrorText(rc, szText, sizeof(szText) - 1);
printf("ERROR: %s\n", szText);
exit(1);
}
/*
* NOTE: Since the audio device may not support the playback
* format and sampling frequency, the audio system uses the
* closest configuration which is then returned to the user
* in the AUDIOINFO structure.
*
*/
/* print information */
AGetAudioDevCaps(info.nDeviceId, &caps);
printf("%s at %d-bit %s %u Hz detected\n",
caps.szProductName,
info.wFormat & AUDIO_FORMAT_16BITS ? 16 : 8,
info.wFormat & AUDIO_FORMAT_STEREO ? "stereo" : "mono",
info.nSampleRate);
/* close audio device */
ACloseAudio();
return 0;
}
int msdos_init_seal (void)
{
#ifdef USE_SEAL
if (AInitialize() == AUDIO_ERROR_NONE)
return 0;
else
return 1;
#else
return 0;
#endif
}
int main(void)
{
AUDIOINFO info;
LPAUDIOMODULE lpModule;
LPAUDIOWAVE lpWave;
HAC hVoice;
BOOL stopped;
/* initialize audio library */
AInitialize();
/* open audio device */
info.nDeviceId = AUDIO_DEVICE_MAPPER;
info.wFormat = AUDIO_FORMAT_16BITS | AUDIO_FORMAT_STEREO;
info.nSampleRate = 44100;
AOpenAudio(&info);
/* load module and waveform file */
ALoadModuleFile("test.s3m", &lpModule, 0);
ALoadWaveFile("test.wav", &lpWave, 0);
/* open voices for module and waveform */
AOpenVoices(lpModule->nTracks + 1);
/* play the module file */
APlayModule(lpModule);
ASetModuleVolume(64);
/* play the waveform through a voice */
ACreateAudioVoice(&hVoice);
APlayVoice(hVoice, lpWave);
ASetVoiceVolume(hVoice, 48);
ASetVoicePanning(hVoice, 128);
/* program main execution loop */
printf("Playing module and waveform, press any key to stop.\n");
while (!kbhit()) {
/* update audio system */
AUpdateAudio();
/* restart waveform if stopped */
AGetVoiceStatus(hVoice, &stopped);
if (stopped) APlayVoice(hVoice, lpWave);
/* check if the module is stopped */
AGetModuleStatus(&stopped);
if (stopped) break;
}
/* stop playing the waveform */
AStopVoice(hVoice);
ADestroyAudioVoice(hVoice);
/* stop playing the module */
AStopModule();
ACloseVoices();
/* release the waveform & module */
AFreeWaveFile(lpWave);
AFreeModuleFile(lpModule);
/* close audio device */
ACloseAudio();
return 0;
}
int msdos_init_sound(int *rate, int card)
{
int i;
seal_sample_rate = *rate;
seal_sound_card = card;
if (AInitialize() != AUDIO_ERROR_NONE)
return 1;
/* Ask the user if no sound card was chosen */
if (seal_sound_card == -1)
{
unsigned int k;
printf("\n SELECT YOUR AUDIO DEVICE :\n\n"
" AWE32/64 playback requires onboard DRAM,\n"
" Sound Blaster playback is the most compatible & better for emulation\n\n");
for (k = 0;k < AGetAudioNumDevs();k++)
{
if (AGetAudioDevCaps(k,&caps) == AUDIO_ERROR_NONE)
printf(" %2d. %s\n",k,caps.szProductName);
}
printf("\n");
if (k < 10)
{
i = getch();
seal_sound_card = i - '0';
}
else
scanf("%d",&seal_sound_card);
}
/* initialize SEAL audio library */
if (seal_sound_card == 0) /* silence */
{
/* update the Machine structure to show that sound is disabled */
seal_sample_rate = 0;
exit(0);
return 0;
}
/* open audio device */
/* info.nDeviceId = AUDIO_DEVICE_MAPPER;*/
info.nDeviceId = seal_sound_card;
/* always use 16 bit mixing if possible - better quality and same speed of 8 bit */
info.wFormat = AUDIO_FORMAT_16BITS | AUDIO_FORMAT_STEREO | AUDIO_FORMAT_RAW_SAMPLE;
info.nSampleRate = seal_sample_rate;
if (AOpenAudio(&info) != AUDIO_ERROR_NONE)
{
return (1);
}
AGetAudioDevCaps(info.nDeviceId,&caps);
printf("Using `%s' at %d-bit %s %u Hz\n",
caps.szProductName,
info.wFormat & AUDIO_FORMAT_16BITS ? 16 : 8,
info.wFormat & AUDIO_FORMAT_STEREO ? "stereo" : "mono",
info.nSampleRate);
/* open and allocate voices, allocate waveforms */
if (AOpenVoices(NUMVOICES) != AUDIO_ERROR_NONE)
{
printf("voices initialization failed\n");
return 1;
}
for (i = 0; i < NUMVOICES; i++)
{
if (ACreateAudioVoice(&hVoice[i]) != AUDIO_ERROR_NONE)
{
printf("voice #%d creation failed\n",i);
return 1;
}
ASetVoicePanning(hVoice[i],128);
lpWave[i] = 0;
}
/* update the Machine structure to reflect the actual sample rate */
*rate = seal_sample_rate = info.nSampleRate;
{
uclock_t a,b;
LONG start,end;
if ((lpWave[0] = (LPAUDIOWAVE)malloc(sizeof(AUDIOWAVE))) == 0)
return 1;
lpWave[0]->wFormat = AUDIO_FORMAT_8BITS | AUDIO_FORMAT_MONO;
lpWave[0]->nSampleRate = seal_sample_rate;
lpWave[0]->dwLength = 3*seal_sample_rate;
lpWave[0]->dwLoopStart = 0;
lpWave[0]->dwLoopEnd = 3*seal_sample_rate;
if (ACreateAudioData(lpWave[0]) != AUDIO_ERROR_NONE)
{
free(lpWave[0]);
lpWave[0] = 0;
return 1;
}
memset(lpWave[0]->lpData,0,3*seal_sample_rate);
/* upload the data to the audio DRAM local memory */
AWriteAudioData(lpWave[0],0,3*seal_sample_rate);
APrimeVoice(hVoice[0],lpWave[0]);
ASetVoiceFrequency(hVoice[0],seal_sample_rate);
ASetVoiceVolume(hVoice[0],0);
AStartVoice(hVoice[0]);
a = uclock();
/* wait some time to let everything stabilize */
do
{
osd_update_audio();
b = uclock();
} while (b-a < UCLOCKS_PER_SEC/10);
a = uclock();
AGetVoicePosition(hVoice[0],&start);
do
{
osd_update_audio();
b = uclock();
} while (b-a < UCLOCKS_PER_SEC);
AGetVoicePosition(hVoice[0],&end);
nominal_sample_rate = seal_sample_rate;
seal_sample_rate = end - start;
AStopVoice(hVoice[0]);
ADestroyAudioData(lpWave[0]);
free(lpWave[0]);
lpWave[0] = 0;
}
osd_set_mastervolume(0); /* start at maximum volume */
return 0;
}
int main(void)
{
AUDIOINFO info;
LPAUDIOWAVE lpWave;
HAC hVoice[NUMVOICES];
BOOL stopped;
UINT n, m;
/* initialize audio library */
AInitialize();
/* open audio device */
info.nDeviceId = AUDIO_DEVICE_MAPPER;
info.wFormat = AUDIO_FORMAT_16BITS | AUDIO_FORMAT_STEREO;
info.nSampleRate = 44100;
AOpenAudio(&info);
/* load waveform file */
ALoadWaveFile("test.wav", &lpWave, 0);
/* open and allocate voices */
AOpenVoices(NUMVOICES);
for (n = 0; n < NUMVOICES; n++) {
ACreateAudioVoice(&hVoice[n]);
ASetVoiceVolume(hVoice[n], 64);
ASetVoicePanning(hVoice[n], n & 1 ? 0 : 255);
}
/* program main execution loop */
printf("Playing waveform, press any key to stop.\n");
for (n = m = 0; !kbhit() && n < 48 - 7; n++) {
/* play chord C-E-G */
APlayVoice(hVoice[m+0], lpWave);
APlayVoice(hVoice[m+1], lpWave);
APlayVoice(hVoice[m+2], lpWave);
ASetVoiceFrequency(hVoice[m+0], FREQ(aPeriodTable[n+0]));
ASetVoiceFrequency(hVoice[m+1], FREQ(aPeriodTable[n+4]));
ASetVoiceFrequency(hVoice[m+2], FREQ(aPeriodTable[n+7]));
m = (m + 3) % NUMVOICES;
/* wait until note finishes */
do {
/* update audio system */
AUpdateAudio();
AGetVoiceStatus(hVoice[0], &stopped);
} while (!stopped);
}
/* stop and release voices */
for (n = 0; n < NUMVOICES; n++) {
AStopVoice(hVoice[n]);
ADestroyAudioVoice(hVoice[n]);
}
ACloseVoices();
/* release the waveform file */
AFreeWaveFile(lpWave);
/* close audio device */
ACloseAudio();
return 0;
}
