signed int __fastcall Aska::TriListComp::DecompressTriangleList(Aska::TriListComp *this, const signed __int8 *a2, unsigned __int16 *a3, unsigned int a4, unsigned int a5)
{
  int v5; // r6
  unsigned int v6; // r4
  unsigned int v7; // r1
  signed int v8; // r11
  int v9; // r7
  unsigned int v10; // r9
  unsigned int v11; // r8
  int v12; // r2
  unsigned __int16 v13; // r0
  unsigned int v14; // r3
  unsigned __int16 v15; // r1
  unsigned int v16; // r5
  __int16 v17; // r2
  unsigned __int16 v18; // r2
  __int16 v19; // r3
  unsigned __int16 v20; // r5
  unsigned int v21; // r0
  int v22; // r6
  unsigned int v23; // r7
  int v24; // r2
  __int16 v25; // r2
  __int16 v26; // r3
  unsigned int *v27; // r0
  unsigned int *v28; // r0
  unsigned __int16 v30; // [sp+6h] [bp-3Ah]
  unsigned __int16 v31; // [sp+8h] [bp-38h]
  __int16 v32; // [sp+Ah] [bp-36h]
  unsigned __int16 v33; // [sp+Ch] [bp-34h]
  __int16 v34; // [sp+Eh] [bp-32h]
  unsigned __int16 v35; // [sp+10h] [bp-30h]
  unsigned __int16 v36; // [sp+12h] [bp-2Eh]
  unsigned __int16 v37; // [sp+14h] [bp-2Ch]
  __int16 v38; // [sp+16h] [bp-2Ah]
  _DWORD (__fastcall **v39)(Aska::StaticStream *__hidden); // [sp+18h] [bp-28h]
  __int64 v40; // [sp+1Ch] [bp-24h]
  __int64 v41; // [sp+24h] [bp-1Ch]
  int v42; // [sp+2Ch] [bp-14h]
  int v43; // [sp+3Ch] [bp-4h]
  int (**v44)(); // [sp+40h] [bp+0h]
  __int64 v45; // [sp+44h] [bp+4h]
  __int64 v46; // [sp+4Ch] [bp+Ch]
  int v47; // [sp+54h] [bp+14h]
  __int16 v48; // [sp+58h] [bp+18h]
  __int16 v49; // [sp+5Ah] [bp+1Ah]

  v5 = *(unsigned __int16 *)this;
  v44 = &off_1FE0FC0;
  v47 = 8;
  v48 = 0;
  v49 = 0;
  v45 = (unsigned int)this + 2;
  v6 = ((unsigned int)a3 >> 1) - 1;
  v39 = off_1FE09A0;
  HIDWORD(v45) = ((unsigned int)a3 >> 1) - 1;
  v46 = v6;
  v40 = 0LL;
  v41 = 0LL;
  v42 = 0;
  Aska::StaticStream::Open((Aska::StaticStream *)&v39, a2, a4);
  v8 = 1;
  if ( v5 == 0xFFFF )
  {
    if ( v6 )
    {
      v22 = v45;
      v23 = 0;
      do
      {
        v24 = v22 + 2 * v23;
        v36 = *(_WORD *)(v22 + 2 * v23);
        v37 = *(_WORD *)(v24 + 2);
        v25 = *(_WORD *)(v24 + 4);
        v38 = v25;
        if ( v36 >= (unsigned int)v37 )
        {
          v23 += 3;
          if ( Aska::StaticStream::Write((Aska::StaticStream *)&v39, &v36, 2u, 3u) != 3 )
          {
LABEL_26:
            v43 = 0;
            v8 = 0;
            break;
          }
        }
        else
        {
          v26 = *(_WORD *)(v22 + 2 * (v23 + 3));
          v30 = v36;
          v31 = v37;
          v32 = v25;
          v33 = v36;
          v34 = v26;
          v35 = v37;
          if ( Aska::StaticStream::Write((Aska::StaticStream *)&v39, &v30, 2u, 6u) != 6 )
            goto LABEL_26;
          v23 += 4;
        }
      }
      while ( v23 < v6 );
    }
  }
  else if ( v6 )
  {
    v9 = v45;
    LOWORD(v10) = v5 - 1;
    v11 = 0;
    do
    {
      v12 = v9 + 2 * v11;
      v13 = v10 - *(_WORD *)(v9 + 2 * v11);
      v36 = v13;
      v14 = v5 + v13;
      if ( (unsigned __int16)v10 > v14 )
        LOWORD(v14) = v10;
      v15 = v14 - *(_WORD *)(v12 + 2);
      v37 = v15;
      v16 = v5 + v15;
      v17 = *(_WORD *)(v12 + 4);
      if ( (unsigned __int16)v14 > v16 )
        LOWORD(v16) = v14;
      v18 = v16 - v17;
      v38 = v18;
      v10 = v5 + v18;
      if ( (unsigned __int16)v16 > v10 )
        LOWORD(v10) = v16;
      if ( v13 >= (unsigned int)v15 )
      {
        v11 += 3;
        if ( Aska::StaticStream::Write((Aska::StaticStream *)&v39, &v36, 2u, 3u) != 3 )
          goto LABEL_26;
      }
      else
      {
        v19 = *(_WORD *)(v9 + 2 * (v11 + 3));
        v30 = v13;
        v31 = v15;
        v20 = v10 - v19;
        v32 = v18;
        v33 = v13;
        v34 = v10 - v19;
        v35 = v15;
        if ( Aska::StaticStream::Write((Aska::StaticStream *)&v39, &v30, 2u, 6u) != 6 )
          goto LABEL_26;
        v21 = v5 + v20;
        v7 = (unsigned __int16)v10;
        v11 += 4;
        if ( (unsigned __int16)v10 > v21 )
          LOWORD(v21) = v10;
        LOWORD(v10) = v21;
      }
    }
    while ( v11 < v6 );
    v8 = 1;
  }
  v39 = off_1FE09A0;
  v27 = (unsigned int *)HIDWORD(v41);
  if ( !HIDWORD(v41) )
    goto LABEL_46;
  __dmb(0xBu);
  do
    v7 = __ldrex(v27);
  while ( __strex(v7 - 1, v27) );
  __dmb(0xBu);
  if ( v7 == 1 )
  {
LABEL_46:
    if ( (_DWORD)v41 )
      operator delete[]((void *)v41);
    if ( HIDWORD(v41) )
      Aska::TSharedPointerCode::DeleteCounter((Aska::TSharedPointerCode *)HIDWORD(v41), (int *)v7);
  }
  v41 = 0LL;
  v28 = (unsigned int *)HIDWORD(v40);
  if ( !HIDWORD(v40) )
    goto LABEL_47;
  __dmb(0xBu);
  do
    v7 = __ldrex(v28);
  while ( __strex(v7 - 1, v28) );
  __dmb(0xBu);
  if ( v7 == 1 )
  {
LABEL_47:
    if ( (_DWORD)v40 )
      operator delete[]((void *)v40);
    if ( HIDWORD(v40) )
      Aska::TSharedPointerCode::DeleteCounter((Aska::TSharedPointerCode *)HIDWORD(v40), (int *)v7);
  }
  return v8;
}