NieR:Automata CreateShader function

// write access to const memory has been detected, the output may be wrong!
BOOL __fastcall CreateShader(__int64 a1, const char *szShaderName, __int64 *a3, BOOL bMakeVertex, BOOL bMakePixel)
{
  __int64 v5; // rbx
  DATHeader **v6; // r14
  const char *__szShaderName; // r12
  __int64 *v8; // rax
  __int64 v9; // rax
  __int64 v10; // rdi
  DATHeader *v11; // rax
  __int64 v12; // rcx
  DWORD v13; // eax
  __int64 v14; // rdx
  DATHeader *v15; // r8
  __int64 v16; // rdx
  __int64 v17; // rax
  DWORD v18; // eax
  DATHeader *v19; // r8
  __int64 v20; // rax
  __int64 v21; // rdx
  __int64 v22; // rdx
  __int64 v23; // rcx
  __int64 v24; // rdx
  __int64 v25; // rcx
  PVOID v26; // rsi
  DATHeader *v27; // rdi
  char v28; // al
  DWORD v29; // eax
  __int64 v30; // rdx
  DATHeader *v31; // r8
  __int64 v32; // rdx
  __int64 v33; // r9
  DWORD v35; // eax
  DATHeader *v36; // rdx
  __int64 szName; // rax
  __int64 v38; // r8
  __int64 v39; // rdx
  __int64 v40; // rcx
  __int64 v41; // [rsp+30h] [rbp-51h]
  signed int v42; // [rsp+40h] [rbp-41h]
  signed int v43; // [rsp+44h] [rbp-3Dh]
  int v44; // [rsp+48h] [rbp-39h]
  DATHeader *v45; // [rsp+50h] [rbp-31h]
  __int64 v46; // [rsp+58h] [rbp-29h]
  _QWORD *v47; // [rsp+60h] [rbp-21h]
  char szShaderNamea[48]; // [rsp+70h] [rbp-11h]

  v5 = 0i64;
  v6 = (DATHeader **)a3;
  __szShaderName = szShaderName;
  if ( bMakeVertex )
  {
    sub_14091D670(szShaderNamea, "%s.vso", szShaderName);
    v43 = -1;
    v8 = (__int64 *)*(&g_pShaderFileHeap + 5);
    v42 = 0;
    if ( v8 )
    {
      v9 = *v8;
      v42 = 1;
      v41 = v9;
    }
    HeapInstance::ReserveMemory((CHeapInstance *)g_pShaderFileHeap, (HeapAlloc_t *)&v47, 72i64, *(_QWORD *)(g_pShaderFileHeap + 120), 0, (HeapReserve *)&v41);
    v10 = (__int64)v47;
    if ( v47 )
    {
      *v47 = &cShaderMemorizeVS::`vftable';
      *(_QWORD *)(v10 + 56) = 0i64;
      *(_BYTE *)(v10 + 64) = 0;
      v11 = *v6;
      if ( !*v6 )
        goto LABEL_85;
      v12 = (unsigned __int8)szShaderNamea[0];
      if ( szShaderNamea[0] )
      {
        v13 = DataFile::QueryFileIndex(v6, szShaderNamea);
        if ( v13 == -1 )
        {
          v11 = 0i64;
        }
        else
        {
          v14 = v13 & 0xFFFFFFF;
          v15 = v6[(unsigned __int64)v13 >> 28];
          v11 = 0i64;
          if ( (unsigned int)v14 < v15->FileCount )
          {
            v16 = *(uint32_t *)((char *)&v15->Magic + 4 * v14 + v15->FileTableOffset);
            if ( (_DWORD)v16 )
              v11 = (DATHeader *)((char *)v15 + v16);
          }
        }
        v12 = (unsigned __int8)szShaderNamea[0];
      }
      if ( v11 )
      {
        v44 = 0;
        v46 = 0i64;
        v45 = v11;
        if ( *v6 )
        {
          if ( (_BYTE)v12 )
          {
            v18 = DataFile::QueryFileIndex(v6, szShaderNamea);
            if ( v18 == -1 )
            {
              v17 = 0i64;
            }
            else
            {
              v12 = v18 & 0xFFFFFFF;
              v19 = v6[(unsigned __int64)v18 >> 28];
              if ( (unsigned int)v12 < v19->FileCount )
              {
                v20 = v19->SizeTableOffset;
                if ( (_DWORD)v20 )
                {
                  v21 = (unsigned int)v12;
                  v12 = (__int64)v19 + v20;
                  v17 = *(uint32_t *)((char *)&v19->Magic + 4 * v21 + v20);
                }
                else
                {
                  v17 = 0i64;
                }
              }
              else
              {
                v17 = 0i64;
              }
            }
          }
          else
          {
            v17 = 0i64;
          }
        }
        else
        {
          v17 = 0i64;
        }
        v46 = v17;
        if ( (unsigned int)sub_140935B70(v12, v10 + 56, (__int64)&v44) )
        {
          strcpy_s_0((char *)(v10 + 8), 48i64, __szShaderName);
          if ( g_qword_141990E50 != g_qword_141990E30 )
          {
            v22 = *(_QWORD *)(g_qword_141990E50 + 8);
            v23 = *(_QWORD *)(g_qword_141990E50 + 16);
            if ( v22 )
              *(_QWORD *)(v22 + 16) = v23;
            if ( v23 )
              *(_QWORD *)(v23 + 8) = v22;
            qword_141990E48 = 2i64;
            g_qword_141990E50 = v23;
            if ( g_qword_141990E50 != g_qword_141990E30 )
            {
              *(_QWORD *)g_qword_141990E50 = v10;
              if ( g_qword_141990E60 )
                v24 = *(_QWORD *)(g_qword_141990E60 + 8);
              else
                v24 = 0i64;
              *(_QWORD *)(g_qword_141990E50 + 8) = v24;
              *(_QWORD *)(g_qword_141990E50 + 16) = g_qword_141990E60;
              if ( v24 )
                *(_QWORD *)(v24 + 16) = g_qword_141990E50;
              if ( g_qword_141990E60 )
                *(_QWORD *)(g_qword_141990E60 + 8) = g_qword_141990E50;
              if ( g_qword_141990E58 == g_qword_141990E60 )
                g_qword_141990E58 = g_qword_141990E50;
            }
          }
          goto LABEL_41;
        }
      }
      else
      {
LABEL_85:
        sub_1409204B0(g_szShaderNotInDAT, szShaderNamea);
        (**(void (__fastcall ***)(__int64, signed __int64))v10)(v10, 1i64);
      }
    }
    return 0;
  }
LABEL_41:
  if ( !bMakePixel )
    return 1;
  sub_14091D670(szShaderNamea, "%s.pso", __szShaderName);
  v26 = AllocHeapMem(72i64, (HeapInfo *)&g_pShaderFileHeap);
  if ( v26 )
  {
    *(_QWORD *)v26 = &cShaderMemorizePS::`vftable';
    *((_QWORD *)v26 + 7) = 0i64;
    *((_BYTE *)v26 + 64) = 0;
    v27 = *v6;
    if ( !*v6 )
      goto LABEL_86;
    v28 = szShaderNamea[0];
    if ( szShaderNamea[0] )
    {
      v29 = DataFile::QueryFileIndex(v6, szShaderNamea);
      v27 = 0i64;
      if ( v29 != -1 )
      {
        v30 = v29 & 0xFFFFFFF;
        v31 = v6[(unsigned __int64)v29 >> 28];
        if ( (unsigned int)v30 < v31->FileCount )
        {
          v25 = (__int64)v31 + v31->FileTableOffset;
          v32 = *(unsigned int *)(v25 + 4 * v30);
          if ( (_DWORD)v32 )
            v27 = (DATHeader *)((char *)v31 + v32);
        }
      }
      v28 = szShaderNamea[0];
    }
    if ( v27 )
    {
      if ( *v6 )
      {
        if ( v28 )
        {
          v35 = DataFile::QueryFileIndex(v6, szShaderNamea);
          if ( v35 == -1 )
          {
            v33 = 0i64;
          }
          else
          {
            v25 = v35 & 0xFFFFFFF;
            v36 = v6[(unsigned __int64)v35 >> 28];
            if ( (unsigned int)v25 < v36->FileCount )
            {
              szName = v36->SizeTableOffset;
              if ( (_DWORD)szName )
              {
                v38 = (unsigned int)v25;
                v25 = (__int64)v36 + szName;
                v33 = *(uint32_t *)((char *)&v36->Magic + 4 * v38 + szName);
              }
              else
              {
                v33 = 0i64;
              }
            }
            else
            {
              v33 = 0i64;
            }
          }
        }
        else
        {
          v33 = 0i64;
        }
      }
      else
      {
        v33 = 0i64;
      }
      if ( (unsigned int)sub_140935C50(v25, (__int64)v26 + 56, (__int64)v27, v33) )
      {
        strcpy_s_0((char *)v26 + 8, 48i64, __szShaderName);
        if ( g_qword_141990E88 != g_qword_141990E68 )
        {
          v39 = *(_QWORD *)(g_qword_141990E88 + 8);
          v40 = *(_QWORD *)(g_qword_141990E88 + 16);
          if ( v39 )
            *(_QWORD *)(v39 + 16) = v40;
          if ( v40 )
            *(_QWORD *)(v40 + 8) = v39;
          qword_141990E80 = 1i64;
          g_qword_141990E88 = v40;
          if ( g_qword_141990E88 != g_qword_141990E68 )
          {
            *(_QWORD *)g_qword_141990E88 = v26;
            if ( g_qword_141990E98 )
              v5 = *(_QWORD *)(g_qword_141990E98 + 8);
            *(_QWORD *)(g_qword_141990E88 + 8) = v5;
            *(_QWORD *)(g_qword_141990E88 + 16) = g_qword_141990E98;
            if ( v5 )
              *(_QWORD *)(v5 + 16) = g_qword_141990E88;
            if ( g_qword_141990E98 )
              *(_QWORD *)(g_qword_141990E98 + 8) = g_qword_141990E88;
            if ( g_qword_141990E90 == g_qword_141990E98 )
              g_qword_141990E90 = g_qword_141990E88;
          }
        }
        return 1;
      }
    }
    else
    {
LABEL_86:
      sub_1409204B0(g_szShaderNotInDAT, szShaderNamea);
      (**(void (__fastcall ***)(PVOID, signed __int64))v26)(v26, 1i64);
    }
  }
  return 0;
}