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Kirikiri3 engine hook

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Blu3train 2023-08-13 12:39:16 +02:00
parent f3fbe04409
commit 38038029d8
1 changed files with 57 additions and 3 deletions
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60
texthook/engine/engine.cc
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@ -584,16 +584,70 @@ bool FindKiriKiriHook(DWORD fun, DWORD size, DWORD pt, DWORD flag) // jichi 10/2
return false;
}
bool KiriKiri3Filter(LPVOID data, DWORD *size, HookParam *, BYTE)
{
auto text = reinterpret_cast<LPWSTR>(data);
auto len = reinterpret_cast<size_t *>(size);
static std::wstring prevText;
if (!*len)
return false;
text[*len/sizeof(wchar_t)] = L'\0'; // clean text
if (!prevText.compare(text))
return false;
prevText = text;
if (cpp_wcsnstr(text, L"[", *len/sizeof(wchar_t))) {
WideStringFilterBetween(text, len, L"[", 1, L"]\\", 2);
WideStringFilterBetween(text, len, L"[", 1, L"]", 1);
}
return true;
}
bool InsertKiriKiri3Hook()
{
//by Blu3train
/*
* Sample games:
* https://vndb.org/v16190
*/
const BYTE bytes[] = {
0x66, 0x83, 0x3C, 0x41 , 0x5B, // cmp word ptr [ecx+eax*2],5B << hook here
0x75, 0x09, // jne LBK-30067.exe+1EB26F
0x8B, 0x85, XX4 // mov eax,[ebp-00000254]
};
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
if (!addr) {
//ConsoleOutput("vnreng:KiriKiri3: pattern not found");
return false;
}
HookParam hp = {};
hp.address = addr;
hp.offset = pusha_ecx_off -4;
hp.index = 0;
//hp.split = -4 -4;
hp.split = 5 * 4; //arg5
hp.split_index = 0;
hp.type = USING_UNICODE | USING_STRING | USING_SPLIT;
hp.filter_fun = KiriKiri3Filter;
ConsoleOutput("vnreng: INSERT KiriKiri3");
NewHook(hp, "KiriKiri3");
return true;
}
bool InsertKiriKiriHook() // 9/20/2014 jichi: change return type to bool
{
bool k1 = FindKiriKiriHook((DWORD)GetGlyphOutlineW, processStopAddress - processStartAddress, processStartAddress, 0), // KiriKiri1
k2 = FindKiriKiriHook((DWORD)GetTextExtentPoint32W, processStopAddress - processStartAddress, processStartAddress, 1); // KiriKiri2
k2 = FindKiriKiriHook((DWORD)GetTextExtentPoint32W, processStopAddress - processStartAddress, processStartAddress, 1), // KiriKiri2
k3 = InsertKiriKiri3Hook(); // KiriKiri3
//RegisterEngineType(ENGINE_KIRIKIRI);
if (k1 && k2) {
ConsoleOutput("vnreng:KiriKiri1: disable GDI hooks");
}
return k1 || k2;
return k1 || k2 || k3;
}
/** 10/20/2014 jichi: KAGParser