static void Mint_InitAudio(_THIS, SDL_AudioSpec *spec)
{
int channels_mode, prediv;
void *buffer;
Buffoper(0);
Settracks(0,0);
Setmontracks(0);
switch (spec->format & 0xff) {
case 8:
if (spec->channels==2) {
channels_mode=STEREO8;
} else {
channels_mode=MONO8;
}
break;
case 16:
if (spec->channels==2) {
channels_mode=STEREO16;
} else {
channels_mode=MONO16;
}
break;
default:
channels_mode=STEREO16;
break;
}
if (Setmode(channels_mode)<0) {
DEBUG_PRINT((DEBUG_NAME "Setmode() failed\n"));
}
prediv = MINTAUDIO_frequencies[MINTAUDIO_numfreq].predivisor;
Devconnect(DMAPLAY, DAC, CLKEXT, prediv, 1);
buffer = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf];
if (Setbuffer(0, buffer, buffer + spec->size)<0) {
DEBUG_PRINT((DEBUG_NAME "Setbuffer() failed\n"));
}
if (NSetinterrupt(2, SI_PLAY, Mint_GsxbInterrupt)<0) {
DEBUG_PRINT((DEBUG_NAME "NSetinterrupt() failed\n"));
}
Buffoper(SB_PLA_ENA|SB_PLA_RPT);
DEBUG_PRINT((DEBUG_NAME "hardware initialized\n"));
}
static void Mint_CloseAudio(_THIS)
{
Buffoper(0);
if (NSetinterrupt(2, SI_NONE, Mint_GsxbNullInterrupt)<0) {
DEBUG_PRINT((DEBUG_NAME "NSetinterrupt() failed in close\n"));
}
while (SDL_MintAudio_mutex != 0) {
}
if (SDL_MintAudio_audiobuf[0]) {
Mfree(SDL_MintAudio_audiobuf[0]);
SDL_MintAudio_audiobuf[0] = SDL_MintAudio_audiobuf[1] = NULL;
}
Unlocksnd();
}
static void Mint_CloseAudio(_THIS)
{
/* Stop replay */
Buffoper(0);
/* Uninstall interrupt */
if (NSetinterrupt(2, SI_NONE, SDL_MintAudio_EmptyGsxbInterrupt)<0) {
DEBUG_PRINT((DEBUG_NAME "NSetinterrupt() failed in close\n"));
}
/* Wait if currently playing sound */
while (SDL_MintAudio_mutex != 0) {
}
/* Clear buffers */
if (SDL_MintAudio_audiobuf[0]) {
Mfree(SDL_MintAudio_audiobuf[0]);
SDL_MintAudio_audiobuf[0] = SDL_MintAudio_audiobuf[1] = NULL;
}
/* Unlock sound system */
Unlocksnd();
}
