PSP sceMpegBaseCscVme

int sceMpegBaseCscVme(ScePVoid pRGBbuffer, ScePVoid pRGBbuffer2, SceInt32 width, SceMpegYCrCbBuffer *pYCrCbBuffer)
{
    uint uVar1;
    int ret;
    uint uVar2;
    uint uVar3;
    uint width1;
    int in_k1;

    uVar1 = in_k1 << 0xb;
    if (-1 < (int)(((uint)&pYCrCbBuffer->iFrameHeight | (uint)pYCrCbBuffer) & uVar1)) {
        ret = pYCrCbBuffer->iFrameBufferWidth16;
        uVar3 = pYCrCbBuffer->iFrameBufferHeight16 * ret * 0x80;
        uVar2 = uVar3 >> 2;
        width1 = width;
        if (width == 0) {
            width1 = DAT_000006e8;
        }
        if (width1 < (uint)(ret << 4)) {
            return -0x7ffffe02;
        }
        width1 = width1 * ret * 4;
        if ((((((-1 < (int)(uVar1 & ((uint)((int)pYCrCbBuffer->pYBuffer + uVar3) |
                                     (uint)pYCrCbBuffer->pYBuffer | uVar3))) &&
               (-1 < (int)(uVar1 & ((uint)((int)pYCrCbBuffer->pYBuffer2 + uVar3) |
                                    (uint)pYCrCbBuffer->pYBuffer2 | uVar3)))) &&
              (-1 < (int)(((int)pYCrCbBuffer->pCrBuffer + uVar2 | (uint)pYCrCbBuffer->pCrBuffer) &
                         uVar1))) &&
             ((-1 < (int)(((int)pYCrCbBuffer->pCbBuffer + uVar2 | (uint)pYCrCbBuffer->pCbBuffer) &
                         uVar1) &&
              (-1 < (int)(((int)pYCrCbBuffer->pCrBuffer2 + uVar2 | (uint)pYCrCbBuffer->pCrBuffer2) &
                         uVar1))))) &&
            ((-1 < (int)(((int)pYCrCbBuffer->pCbBuffer2 + uVar2 | (uint)pYCrCbBuffer->pCbBuffer2) &
                        uVar1) &&
             (-1 < (int)(uVar1 & ((uint)((int)pRGBbuffer + width1) | (uint)pRGBbuffer | width1))))))
           && ((pRGBbuffer2 == (ScePVoid)0x0 ||
               (-1 < (int)(uVar1 & ((uint)((int)pRGBbuffer2 + width1) | (uint)pRGBbuffer2 | width1))
               )))) {
            ret = trigger_dmacplus_memcpy4((int)DAT_000006e6,width,0);
            if (ret == 0) {
                ret = trigger_dmacplus_memcpy3(pRGBbuffer,pRGBbuffer2,pYCrCbBuffer);
            }
            sceKernelUnlockMutex(g_SceMpegBaseCSC_mutex,1);
            return ret;
        }
    }
    return -0x7fffffdd;
}

void trigger_dmacplus_memcpy4(int param_1,int param_2,int param_3)
{
    uint ret;

    if (param_2 == 0) {
        param_2 = DAT_000006e8;
    }
    if (param_3 == 0) {
        param_3 = 0x6d0;
    }
    sceKernelLockMutex(g_SceMpegBaseCSC_mutex,1,0);
    while (ret = sceDmacplus_driver_0xB269EAC9_memcpy4(param_1,param_2,param_3), ret == 0x80000021)
    {
        sceDmacplus_driver_0xBF0DB45E_sceDmacplusAvcSync(0, 0);
    }
    return;
}
}


int trigger_dmacplus_memcpy3(ScePVoid pRGBbuffer, ScePVoid pRGBbuffer2, SceMpegYCrCbBuffer *pYCrCbBuffer)
{
    int iVar1;
    int iVar2;
    uint ret;

    iVar1 = sceKernelPollEventFlag(g_SceMpegBaseCSC_evflag,3,1,0);
    iVar2 = -0x7fffffff;
    if (-1 < iVar1) {
        do {
            ret = sceDmacplus_driver_0x9C492B9B(pRGBbuffer, pRGBbuffer2, pYCrCbBuffer);
            if ((ret != 0) && (ret != 0x80000021)) {
                return ret;
            }
            iVar2 = sceDmacplus_driver_0xBF0DB45E_sceDmacplusAvcSync();
        } while (ret != 0);
    }
    return iVar2;
}

uint sceDmacplus_driver_0xB269EAC9(int param_1,int width,ushort *param_3)
{
    undefined4 tmp;
    uint ret;

    tmp = sceKernelCpuSuspendIntr();
    if ((g_dmac_status & 2) == 0) {
        DAT_000012f4 = ((uint)param_3[2] & 0x3ff) << 0x14 | ((uint)param_3[1] & 0x3ff) << 10 |
                       (uint)*param_3 & 0x3ff;
        DAT_000012f8 = ((uint)param_3[5] & 0x3ff) << 0x14 | ((uint)param_3[4] & 0x3ff) << 10 |
                       (uint)param_3[3] & 0x3ff;
        DAT_000012fc = ((uint)param_3[8] & 0x3ff) << 0x14 | ((uint)param_3[7] & 0x3ff) << 10 |
                       (uint)param_3[6] & 0x3ff;
        DAT_00001300 = ((uint)param_3[10] & 1) << 8 | (uint)*(byte *)(param_3 + 9);
        DAT_00001304 = width;
        DAT_00001308 = param_1;
        _DAT_bc800150 = DAT_000012f4;
        _DAT_bc800154 = DAT_000012f8;
        _DAT_bc800158 = DAT_000012fc;
        _DAT_bc80015c = DAT_00001300;
        sceKernelCpuResumeIntr(tmp);
        ret = 0;
    }
    else {
        sceKernelCpuResumeIntr(tmp);
        ret = 0x80000021;
    }
    return ret;
}

uint sceDmacplus_driver_0x9C492B9B(ScePVoid pRGBbuffer, ScePVoid pRGBbuffer2, SceMpegYCrCbBuffer *pYCrCbBuffer)
{
    uint uVar1;
    undefined4 uVar2;
    ushort uVar3;
    int iVar4;
    uint in_k1;

    uVar1 = 0x80000103;
    if (pRGBbuffer != (ScePVoid)0x0) {
        uVar2 = sceKernelCpuSuspendIntr();
        uVar3 = 0x1a;
        if ((pYCrCbBuffer->iFrameBufferWidth16 & 7U | DAT_00001308) == 0) {
            uVar3 = 10;
        }
        iVar4 = (in_k1 >> 0x1f) << 0x1e;
        if ((g_dmac_status & uVar3) == 0) {
            if (pRGBbuffer2 == (ScePVoid)0x0) {
                _DAT_bc80014c = DAT_00001304 << 8 | DAT_00001308 << 1;
            }
            else {
                _DAT_bc80014c = DAT_00001304 << 8 | DAT_00001308 << 1 | 1;
            }
            _DAT_bc800140 =
                 (pYCrCbBuffer->iFrameBufferHeight16 & 0x3fU) << 0x10 |
                 (pYCrCbBuffer->iFrameBufferWidth16 & 0x3fU) << 8 |
                 (pYCrCbBuffer->iUnknown & 1U) << 2 | (pYCrCbBuffer->iUnknown2 & 1U) << 1 | 1;
            _DAT_bc800160 = 0xd;
            g_dmac_status = g_dmac_status | 0x8002;
            _DAT_bc800120 = iVar4;
            _DAT_bc800128 = iVar4;
            _DAT_bc800130 = iVar4;
            _DAT_bc800134 = iVar4;
            _DAT_bc800138 = iVar4;
            _DAT_bc80013c = iVar4;
            _DAT_bc800144 = iVar4;
            _DAT_bc800148 = iVar4;
            sceKernelClearEventFlag(g_SceDmacplusAvc_evflag,0xfffffffc);
            sceKernelCpuResumeIntrWithSync(uVar2);
            uVar1 = 0;
        }
        else {
            sceKernelCpuResumeIntr(uVar2);
            uVar1 = 0x80000021;
        }
    }
    return uVar1;
}