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RealLive Babel engine hook #1211

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RealLive Babel engine hook #1211

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55 changes: 55 additions & 0 deletions texthook/engine/engine.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -2239,8 +2239,63 @@ static bool InsertRealliveDynamicHook(LPVOID addr, DWORD frame, DWORD stack)
}
return true; // jichi 12/25/2013: return true
}

bool RlBabelFilter(LPVOID data, DWORD *size, HookParam *, BYTE)
{
auto text = reinterpret_cast<LPSTR>(data);
auto len = reinterpret_cast<size_t *>(size);

if (text[0] == '\x01') {
StringFilterBetween(text, len, "\x01", 1, "\x02", 1); // remove names
}

CharReplacer(text, len, '\x08', '"');
CharReplacer(text, len, '\x09', '\'');
CharReplacer(text, len, '\x0A', '\'');
CharFilter(text, len, '\x1F'); // remove color
StringReplacer(text, len, "\x89\x85", 2, "\x81\x63", 2); // "\x89\x85"-> shift-JIS"…"
StringReplacer(text, len, "\x89\x97", 2, "--", 2);

return true;
}

bool InsertRlBabelHook() {
//by Blu3train
/*
* Sample games:
* https://vndb.org/r78318
*/
const BYTE bytes[] = {
0xCC, // int 3
0x55, // push ebp <- hook here
0x8B, 0xEC, // mov ebp,esp
0x83, 0xEC, 0x20, // sub esp,20
0xC7, 0x45, 0xFC, XX4 // mov [ebp-04],rlBabel.DLL+16804
};

HMODULE module = GetModuleHandleW(L"rlBabel.dll");
if (!module)
return false;
auto [minAddress, maxAddress] = Util::QueryModuleLimits(module);
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), minAddress, maxAddress);
if (!addr)
return false;

HookParam hp = {};
hp.address = addr + 1;
hp.offset = pusha_eax_off -4;
hp.index = 0;
hp.type = USING_STRING;
hp.filter_fun = RlBabelFilter;
ConsoleOutput("vnreng: INSERT RealLive Babel");
NewHook(hp, "RealLive Babel");

return true;
}

void InsertRealliveHook()
{
InsertRlBabelHook();
//ConsoleOutput("Probably Reallive. Wait for text.");
ConsoleOutput("vnreng: TRIGGER Reallive");
trigger_fun = InsertRealliveDynamicHook;
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