Function xAnimPoolInit

src/SB/Core/x/xAnim.cpp:2097–2156

#define ADD_4_BITS(x) (((x)&1) + (((x) >> 1) & 1) + (((x) >> 2) & 1) + (((x) >> 3) & 1))
void xAnimPoolInit(xMemPool* pool, U32 count, U32 singles, U32 blendFlags, U32 effectMax)
{
    effectMax += effectMax & 1;

    U32 size =
        (effectMax * sizeof(xAnimActiveEffect) + sizeof(xAnimSingle)) *
            (ADD_4_BITS((blendFlags & 0xffff) & ((int)(1 << singles) - 1 >> 0x0)) +
             ADD_4_BITS((blendFlags & 0xffff) & ((int)(1 << singles) - 1 >> 0x4)) +
             ADD_4_BITS((blendFlags & 0xffff) & ((int)(1 << singles) - 1 >> 0x8)) +
             ADD_4_BITS((blendFlags & 0xffff) & ((int)(1 << singles) - 1 >> 0xC)) + singles) +
        sizeof(xAnimPlay);

    U32 i;
    void* buffer = xMemAllocSize(count * size);

    xAnimPlay* play = (xAnimPlay*)buffer;
    play->NumSingle = singles;

    xAnimSingle* currsingle;
    play->Single = currsingle = (xAnimSingle*)((U32)play + sizeof(xAnimPlay));
    currsingle += singles;

    for (i = 0; i < singles; ++i)
    {
        if (blendFlags & (1 << i))
        {
            play->Single[i].Blend = currsingle;
            currsingle->Blend = NULL;
            currsingle++;
        }
        else
        {
            play->Single[i].Blend = NULL;
        }
    }

    xAnimActiveEffect* curract = (xAnimActiveEffect*)currsingle;
    for (i = 0; i < play->NumSingle; ++i)
    {
        currsingle = &play->Single[i];
        while (currsingle)
        {
            currsingle->ActiveCount = effectMax;
            if (effectMax != 0)
            {
                currsingle->ActiveList = curract;
                curract += effectMax;
            }
            else
            {
                currsingle->ActiveList = NULL;
            }

            currsingle = currsingle->Blend;
        }
    }

    play->Pool = pool;