PNG Function

int __fastcall bgadCaller5(int *a1, int a2, int a3, intmax_t *a4)
{
  int *v4; // r4
  intmax_t *v5; // r8
  _BYTE *v6; // r1
  void *v7; // r6
  int result; // r0
  void *v9; // r5
  void *v10; // r5
  int v11; // r6
  int v12; // r0
  void *v13; // r5
  void *v14; // r5
  intmax_t v15; // r0
  char *endptr; // [sp+10h] [bp-80h]
  int v17; // [sp+14h] [bp-7Ch]
  std::__ndk1::__shared_weak_count *v18; // [sp+18h] [bp-78h]
  int v19; // [sp+1Ch] [bp-74h]
  std::__ndk1::__shared_weak_count *v20; // [sp+20h] [bp-70h]
  int v21; // [sp+24h] [bp-6Ch]
  std::__ndk1::__shared_weak_count *v22; // [sp+28h] [bp-68h]
  int v23; // [sp+2Ch] [bp-64h]
  std::__ndk1::__shared_weak_count *v24; // [sp+30h] [bp-60h]
  int v25; // [sp+34h] [bp-5Ch]
  std::__ndk1::__shared_weak_count *v26; // [sp+38h] [bp-58h]
  int v27; // [sp+3Ch] [bp-54h]
  std::__ndk1::__shared_weak_count *v28; // [sp+40h] [bp-50h]
  int v29; // [sp+44h] [bp-4Ch]
  std::__ndk1::__shared_weak_count *v30; // [sp+48h] [bp-48h]
  int v31; // [sp+4Ch] [bp-44h]
  std::__ndk1::__shared_weak_count *v32; // [sp+50h] [bp-40h]
  int v33; // [sp+54h] [bp-3Ch]
  std::__ndk1::__shared_weak_count *v34; // [sp+58h] [bp-38h]
  int v35; // [sp+5Ch] [bp-34h]
  std::__ndk1::__shared_weak_count *v36; // [sp+60h] [bp-30h]
  int v37; // [sp+64h] [bp-2Ch]
  std::__ndk1::__shared_weak_count *v38; // [sp+68h] [bp-28h]
  int v39; // [sp+6Ch] [bp-24h]
  std::__ndk1::__shared_weak_count *v40; // [sp+70h] [bp-20h]
  char v41; // [sp+74h] [bp-1Ch]
  _BYTE v42[3]; // [sp+75h] [bp-1Bh]
  void *v43; // [sp+7Ch] [bp-14h]
  int v44; // [sp+80h] [bp-10h]

  v4 = a1;
  v5 = a4;
  sub_6123A0(&v41, a3);
  v6 = v43;
  if ( !(v41 & 1) )
    v6 = v42;
  sub_7F02F4(&v39, v6, 0, 0);
  v7 = sub_7F076C();
  v35 = v39;
  v36 = v40;
  if ( v40 )
    std::__ndk1::__shared_weak_count::__add_shared(v40);
  sub_7F0820(&v37, v7, &v35, 0);
  if ( v36 )
    std::__ndk1::__shared_weak_count::__release_shared(v36);
  if ( v37 && !strcmp(*(const char **)(v37 + 4), "/") )
    goto LABEL_17;
  *v4 = 0;
  v4[1] = 0;
  while ( 1 )
  {
    if ( v38 )
      std::__ndk1::__shared_weak_count::__release_shared(v38);
    if ( v40 )
      std::__ndk1::__shared_weak_count::__release_shared(v40);
    if ( v41 & 1 )
      operator delete(v43);
    result = _stack_chk_guard - v44;
    if ( _stack_chk_guard == v44 )
      break;
LABEL_17:
    (*(void (**)(void))(*(_DWORD *)v39 + 12))();
    v9 = sub_7F076C();
    v31 = v39;
    v32 = v40;
    if ( v40 )
      std::__ndk1::__shared_weak_count::__add_shared(v40);
    sub_7F0820(&v33, v9, &v31, 0);
    if ( v32 )
      std::__ndk1::__shared_weak_count::__release_shared(v32);
    if ( v33 && !strcmp(*(const char **)(v33 + 4), "md5") )
    {
      (*(void (__cdecl **)(int))(*(_DWORD *)v39 + 16))(v39);
      sub_612BD8(&v29);
      v10 = sub_7F076C();
      v25 = v39;
      v26 = v40;
      if ( v40 )
        std::__ndk1::__shared_weak_count::__add_shared(v40);
      v11 = v29;
      bgadFunction(&v27, (int)v10, &v25, *(_QWORD *)(v29 + 4), *(_QWORD *)(v29 + 4) >> 32, 1, 0);
      if ( v26 )
        std::__ndk1::__shared_weak_count::__release_shared(v26);
      v12 = v27;
      if ( v27 && *(_DWORD *)(v27 + 8) == 32 )
      {
        if ( v5 )
        {
          (*(void (**)(void))(*(_DWORD *)v39 + 12))();
          v13 = sub_7F076C();
          v21 = v39;
          v22 = v40;
          if ( v40 )
            std::__ndk1::__shared_weak_count::__add_shared(v40);
          sub_7F0820(&v23, v13, &v21, 0);
          if ( v22 )
            std::__ndk1::__shared_weak_count::__release_shared(v22);
          if ( v23 && !strcmp(*(const char **)(v23 + 4), "size") )
          {
            (*(void (__cdecl **)(int))(*(_DWORD *)v39 + 16))(v39);
            v14 = sub_7F076C();
            v17 = v39;
            v18 = v40;
            if ( v40 )
              std::__ndk1::__shared_weak_count::__add_shared(v40);
            bgadFunction(&v19, (int)v14, &v17, *(_QWORD *)(v11 + 4), *(_QWORD *)(v11 + 4) >> 32, 1, 0);
            if ( v18 )
              std::__ndk1::__shared_weak_count::__release_shared(v18);
            if ( v19 )
            {
              v15 = strtoimax((const char *)*(_DWORD *)(v19 + 4), &endptr, 10);
              if ( !HIDWORD(v15) && !*endptr )
                *v5 = v15;
            }
            if ( v20 )
              std::__ndk1::__shared_weak_count::__release_shared(v20);
          }
          if ( v24 )
            std::__ndk1::__shared_weak_count::__release_shared(v24);
          v12 = v27;
        }
        *v4 = v12;
        v4[1] = (int)v28;
        v27 = 0;
        v28 = 0;
      }
      else
      {
        *v4 = 0;
        v4[1] = 0;
        if ( v28 )
          std::__ndk1::__shared_weak_count::__release_shared(v28);
      }
      if ( v30 )
        std::__ndk1::__shared_weak_count::__release_shared(v30);
    }
    else
    {
      *v4 = 0;
      v4[1] = 0;
    }
    if ( v34 )
      std::__ndk1::__shared_weak_count::__release_shared(v34);
  }
  return result;
}