Merge remote-tracking branch 'Blu3train/ClielHook'

texthook/engine/engine.cc

@@ -23025,6 +23025,91 @@ bool InsertNamcoPS2Hook()
 }
 #endif // 0
 
+bool CielFilter(LPVOID data, DWORD *size, HookParam *, BYTE)
+{
+  auto text = reinterpret_cast<LPSTR>(data);
+  auto len = reinterpret_cast<size_t *>(size);
+
+  if (*len == 1) return false;
+
+  return true;
+}
+
+bool InsertCiel1Hook() 
+{
+  //by Blu3train
+    /*
+    * Sample games:
+    * https://vndb.org/r26480
+    * https://vndb.org/v1648
+    * https://vndb.org/v10392
+    */
+  const BYTE bytes[] = {
+    0x50,                         // push eax               << hook here
+    0xE8, XX4,                    // call FaultA.exe+81032
+    0x83, 0xC4, 0x04,             // add esp,04
+    0x85, 0xC0,                   // test eax,eax
+    0x74, 0x32,                   // je FaultA.exe+41FA6
+    0x81, 0x7C, 0x24, 0x10, XX4   // cmp [esp+10],000003FE
+  };
+
+  ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
+  ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
+  if (!addr) {
+    ConsoleOutput("vnreng:Ciel1: pattern not found");
+    return false;
+  }
+
+  HookParam hp = {};
+  hp.address = addr;
+  hp.offset = pusha_edi_off -4;
+  hp.index = 0;
+  hp.length_offset = 1;
+  hp.type = DATA_INDIRECT;
+  hp.filter_fun = CielFilter;
+  ConsoleOutput("vnreng: INSERT Ciel1");
+  NewHook(hp, "Ciel1");
+  return true;
+}
+
+bool InsertCiel2Hook() 
+{
+  //by Blu3train
+    /*
+    * Sample games:
+    * https://vndb.org/r5101
+    */
+  const BYTE bytes[] = {
+    0x68, XX4,               // push after.exe+94518     << hook here
+    0x50,                    // push eax
+    0xE8, XX4,               // call after.exe+711F0
+    0x83, 0xC4, 0x0C,        // add esp,0C
+    0x85, 0xC0,              // test eax,eax
+    0x0F, 0x85, XX4,         // jne after.exe+A2E4
+    0x8B, 0x93, XX4          // mov edx,[ebx+000BE000]
+  };
+
+  ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
+  ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
+  if (!addr) {
+    ConsoleOutput("vnreng:Ciel2: pattern not found");
+    return false;
+  }
+
+  HookParam hp = {};
+  hp.address = addr;
+  hp.offset = pusha_eax_off -4;
+  hp.index = 0;
+  hp.length_offset = 1;
+  hp.type = DATA_INDIRECT;
+  ConsoleOutput("vnreng: INSERT Ciel2");
+  NewHook(hp, "Ciel2");
+  return true;
+}
+
+bool InsertCielHooks()
+{ return InsertCiel1Hook() || InsertCiel2Hook();}
+
 bool InsertA98sysHook() 
 {
   //by Blu3train

texthook/engine/engine.h

@@ -168,6 +168,7 @@ void InsertRealliveHook();      // RealLive: RealLive*.exe
 void InsertStuffScriptHook();   // Stuff: *.mpk
 bool InsertTinkerBellHook();    // TinkerBell: arc00.dat
 bool InsertWaffleHook();        // WAFFLE: cg.pak
+bool InsertCielHooks();          // Ciel: sys/kidoku.dat
 bool InsertA98sysHook();        // A98sys: A98SYS.PAK
 bool InsertKaleidoHook();       // Kaleido ADV Workshop: windata/script_body.bin
 bool InsertRpgmXPHook();        // Rpgm XP: *.rgssad

texthook/engine/match32.cc

@@ -372,6 +372,10 @@ bool DetermineEngineByFile3()
 
 bool DetermineEngineByFile4()
 {
+  if (Util::CheckFile(L"sys/kidoku.dat")) {
+    if (InsertCielHooks())
+      return true;
+  }
   if (Util::CheckFile(L"A98SYS.PAK")) {
     if (InsertA98sysHook())
       return true;