Function initAI

libs/JSystem/JAudio/System/JASAiCtrl.cpp:53–83

static u32 sSubFrames        = 7;

void initAI(AIDCallback cb) {
    setOutputRate(OutputRate_32kHz);
    u32 size = getDacSize() * 2;
    for (int i = 0; i < 3; i++) {
        sDmaDacBuffer[i] = new (JASDram, 0x20) s16[size / 2];
#line 98
        JUT_ASSERT(sDmaDacBuffer[i]);
        JASCalc::bzero(sDmaDacBuffer[i], size);
        DCStoreRange(sDmaDacBuffer[i], size);
    }

    sDspDacBuffer = new (JASDram, 0) s16*[sDspDacBufferCount];
#line 109
    JUT_ASSERT(sDspDacBuffer);
    for (int i = 0; i < sDspDacBufferCount; i++) {
        sDspDacBuffer[i] = new (JASDram, 0x20) s16[getDacSize()];
#line 115
        JUT_ASSERT(sDspDacBuffer[i]);
        JASCalc::bzero(sDspDacBuffer[i], size);
        DCStoreRange(sDspDacBuffer[i], size);
    }
    sDspDacWriteBuffer = sDspDacBufferCount - 1;
    sDspDacReadBuffer  = 0;
    sDspStatus         = 0;

    JASChannel::initBankDisposeMsgQueue();
    AIInit(NULL);
    AIInitDMA((u32)sDmaDacBuffer[2], size);
    AISetDSPSampleRate(sOutputRate != 0);
    AIRegisterDMACallback(cb);
}

void startDMA() {
    AIStartDMA();