tww/src/JSystem/JAudio/JASAiCtrl.cpp

//
// Generated by dtk
// Translation Unit: JASAiCtrl.cpp
//

#include "JSystem/JAudio/JASAiCtrl.h"
#include "JSystem/JAudio/JASCalc.h"
#include "JSystem/JAudio/JASCallback.h"
#include "JSystem/JAudio/JASCmdStack.h"
#include "JSystem/JAudio/JASDSPBuf.h"
#include "JSystem/JAudio/JASProbe.h"
#include "JSystem/JAudio/JASRate.h"
#include "JSystem/JAudio/JASSystemHeap.h"
#include "dolphin/ai/ai.h"
#include "dolphin/os/OSCache.h"
#include "dolphin/os/OSInterrupt.h"

namespace JASystem {
    namespace HardStream {
        void main();
    }
};

/* 8027AE30-8027AE5C       .text init__Q28JASystem6KernelFv */
void JASystem::Kernel::init() {
    resetCallback();
    initSystem();
    portCmdInit();
    Calc::initSinfT();
}

s16* JASystem::Kernel::dac[3];

/* 8027AE5C-8027AEF8       .text initSystem__Q28JASystem6KernelFv */
void JASystem::Kernel::initSystem() {
    for (int i = 0; i < 3; i++) {
        dac[i] = (s16*)allocFromSysDram(getDacSize() * 2);
        Calc::bzero(dac[i], getDacSize() * 2);
        DCStoreRange(dac[i], getDacSize() * 2);
    }
    AIInit(NULL);
    AIInitDMA(u32(dac[2]), getDacSize() * 2);
}

int JASystem::Kernel::JASUniversalDacCounter;
s16* JASystem::Kernel::lastRspMadep;
s16* JASystem::Kernel::useRspMadep;
int JASystem::Kernel::vframeWorkRunning;
void (*JASystem::Kernel::dacCallbackFunc)(s16*, u32);
int JASystem::Kernel::JASVframeCounter;
s16* (*JASystem::Kernel::extMixCallback)(s32);
u8 JASystem::Kernel::extMixMode;

/* 8027AEF8-8027AF04       .text registerMixCallback__Q28JASystem6KernelFPFl_PsUc */
void JASystem::Kernel::registerMixCallback(s16* (*param_1)(s32), u8 param_2) {
    extMixCallback = param_1;
    extMixMode = param_2;
}

/* 8027AF04-8027B0B8       .text vframeWork__Q28JASystem6KernelFv */
void JASystem::Kernel::vframeWork() {
    static u32 dacp = 0;
    JASVframeCounter++;
    s16* buf = TDSP_DACBuffer::mixDSP(getDacSize() / 2);
    Calc::imixcopy(buf + gFrameSamples, buf, dac[dacp], getDacSize() / 2);
    if (extMixCallback) {
        switch(extMixMode) {
        case 0:
            mixMonoTrack(dac[dacp], getDacSize() / 2, extMixCallback);
            break;
        case 1:
            mixMonoTrackWide(dac[dacp], getDacSize() / 2, extMixCallback);
            break;
        case 2:
            mixExtraTrack(dac[dacp], getDacSize() / 2, extMixCallback);
            break;
        case 3:
            mixInterleaveTrack(dac[dacp], getDacSize() / 2, extMixCallback);
            break;
        }
    }
    BOOL enable = OSDisableInterrupts();
    DCStoreRange(dac[dacp], getDacSize() * 2);
    OSRestoreInterrupts(enable);
    lastRspMadep = dac[dacp];
    dacp++;
    if (dacp == 3) {
        dacp = 0;
    }
    vframeWorkRunning = 0;
}

/* 8027B0B8-8027B160       .text updateDac__Q28JASystem6KernelFv */
void JASystem::Kernel::updateDac() {
    if (!useRspMadep) {
        useRspMadep = lastRspMadep;
        lastRspMadep = NULL;
    }
    if (useRspMadep) {
        AIInitDMA(u32(useRspMadep), getDacSize() * 2);
        useRspMadep = NULL;
    } else {
        JASUniversalDacCounter++;
    }
    if (!lastRspMadep && vframeWorkRunning == 0) {
        vframeWork();
    }
    HardStream::main();
    if (dacCallbackFunc) {
        dacCallbackFunc(lastRspMadep, getDacSize() / 2);
    }
}

/* 8027B160-8027B250       .text mixMonoTrack__Q28JASystem6KernelFPslPFl_Ps */
void JASystem::Kernel::mixMonoTrack(s16* dest, s32 size, s16* (*cb)(s32)) {
    probeStart(5, "MONO-MIX");
    s16* src = cb(size);
    if (!src) {
        return;
    }
    probeFinish(5);
    s16* destPtr = dest;
    s16* srcPtr = src;
    for (int i = 0; i < size; i++) {
        s32 var1 = destPtr[0] + srcPtr[0];
        s16 var2;
        if (var1 < -0x8000) {
            var2 = -0x7fff;
        } else if (var1 > 0x7fff) {
            var2 = 0x7fff;
        } else {
            var2 = var1;
        }
        destPtr[0] = var2;
        var1 = destPtr[1] + srcPtr[0];
        if (var1 < -0x8000) {
            var2 = -0x7fff;
        } else if (var1 > 0x7fff) {
            var2 = 0x7fff;
        } else {
            var2 = var1;
        }
        destPtr[1] = var2;
        destPtr += 2;
        srcPtr++;
    }
}

/* 8027B250-8027B344       .text mixMonoTrackWide__Q28JASystem6KernelFPslPFl_Ps */
void JASystem::Kernel::mixMonoTrackWide(s16* dest, s32 size, s16* (*cb)(s32)) {
    probeStart(5, "MONO(W)-MIX");
    s16* src = cb(size);
    if (!src) {
        return;
    }
    probeFinish(5);
    s16* destPtr = dest;
    s16* srcPtr = src;
    for (int i = 0; i < size; i++) {
        s32 var1 = destPtr[0] + srcPtr[0];
        s16 var2;
        if (var1 < -0x8000) {
            var2 = -0x7fff;
        } else if (var1 > 0x7fff) {
            var2 = 0x7fff;
        } else {
            var2 = var1;
        }
        destPtr[0] = var2;
        var1 = destPtr[1] - srcPtr[0];
        if (var1 < -0x8000) {
            var2 = -0x7fff;
        } else if (var1 > 0x7fff) {
            var2 = 0x7fff;
        } else {
            var2 = var1;
        }
        destPtr[1] = var2;
        destPtr += 2;
        srcPtr++;
    }
}

/* 8027B344-8027B464       .text mixExtraTrack__Q28JASystem6KernelFPslPFl_Ps */
void JASystem::Kernel::mixExtraTrack(s16* dest, s32 size, s16* (*cb)(s32)) {
    probeStart(5, "DSPMIX");
    s16* src = cb(size);
    if (!src) {
        return;
    }
    probeFinish(5);
    probeStart(6,"MIXING");
    s16* destPtr = dest;
    s16* srcPtr = src;
    s16* srcPtr2 = src + gFrameSamples;
    for (int i = 0; i < size; i++) {
        s32 var1 = destPtr[0] + srcPtr2[0];
        s16 var2;
        if (var1 < -0x8000) {
            var2 = -0x7fff;
        } else if (var1 > 0x7fff) {
            var2 = 0x7fff;
        } else {
            var2 = var1;
        }
        destPtr[0] = var2;
        var1 = destPtr[1] + srcPtr[0];
        if (var1 < -0x8000) {
            var2 = -0x7fff;
        } else if (var1 > 0x7fff) {
            var2 = 0x7fff;
        } else {
            var2 = var1;
        }
        destPtr[1] = var2;
        destPtr += 2;
        srcPtr2++;
        srcPtr++;
    }
    probeFinish(6);
}

/* 8027B464-8027B500       .text mixInterleaveTrack__Q28JASystem6KernelFPslPFl_Ps */
void JASystem::Kernel::mixInterleaveTrack(s16* dest, s32 size, s16* (*cb)(s32)) {
    s16* src = cb(size);
    if (!src) {
        return;
    }
    s16* destPtr = dest;
    for (int i = 0; i < size * 2 ; i++) {
        s32 var1 = destPtr[0] + src[0];
        s16 var2;
        if (var1 < -0x8000) {
            var2 = -0x7fff;
        } else if (var1 > 0x7fff) {
            var2 = 0x7fff;
        } else {
            var2 = var1;
        }
        destPtr[0] = var2;
        destPtr++;
        src++;
    }
}