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Merge remote-tracking branch 'Blu3train/BGI4Engine'

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Chenx221 2024-09-05 11:54:56 +08:00
commit 908bfbbdc1
1 changed files with 142 additions and 1 deletions
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143
texthook/engine/engine.cc
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@ -2467,6 +2467,147 @@ bool InsertBGI3Hook()
return true;
}
#endif // 0
bool BGI4Filter(LPVOID data, DWORD *size, HookParam *, BYTE)
{
auto text = reinterpret_cast<LPWSTR>(data);
auto len = reinterpret_cast<size_t *>(size);
WideCharFilter(text, len, L'\x0001');
WideCharFilter(text, len, L'\x0002');
WideCharFilter(text, len, L'\x0003');
WideCharFilter(text, len, L'\x0004');
WideCharFilter(text, len, L'\x0005');
WideCharFilter(text, len, L'\x000A');
if (text[0] == L'\x3000') {
*len -= 2;
::memmove(text, text+1, *len);
}
WideCharReplacer(text, len, L'\x3000', L' '); //IDSP
if (cpp_wcsnstr(text, L"<", *len/sizeof(wchar_t))) {
WideStringFilterBetween(text, len, L"<", 1, L">", 1);
}
return true;
}
bool InsertBGI4Hook()
{
//by Blu3train
/*
* Sample games:
* https://vndb.org/v26664
* https://vndb.org/v44105
*/
bool found = false;
const BYTE pattern[] = {
0x55, // 55 push ebp << hook here
0x8b,0xec, // 8BEC mov ebp,esp
0x53, // 53 push ebx
0x56, // 56 push esi
0x57, // 57 push edi
0x33, 0xFF, // 33 FF xor edi,edi
0xE8, XX4, // E8 23FDFFFF call saclet.exe+A0990
0x8B, 0xF0 // 8B F0 mov esi,eax
};
for (auto addr : Util::SearchMemory(pattern, sizeof(pattern), PAGE_EXECUTE, processStartAddress, processStopAddress))
{
HookParam hp = {};
hp.address = addr;
hp.offset = pusha_eax_off - 4;
hp.split = pusha_esp_off - 4;
hp.type = USING_UNICODE | USING_STRING | USING_SPLIT | KNOWN_UNSTABLE;
hp.filter_fun = BGI4Filter;
ConsoleOutput("Textractor: INSERT BGI4");
NewHook(hp, "BGI4");
found = true;
}
if (!found) ConsoleOutput("Textractor:BGI4: pattern not found");
return found;
}
bool BGI56Filter(LPVOID data, DWORD *size, HookParam *, BYTE)
{
auto text = reinterpret_cast<LPSTR>(data);
auto len = reinterpret_cast<size_t *>(size);
if (text[0] == '@') {
*len -= 1;
::memmove(text, text + 1, *len);
}
return true;
}
bool InsertBGI5Hook()
{
//by Blu3train
/*
* Sample games:
* https://vndb.org/v473
*/
const BYTE bytes[] = {
0x90, // nop
0x81, 0xEC, XX4, // sub esp,00000920 << hook here
0x8B, 0x84, 0x24, XX4, // mov eax,[esp+00000944]
0x55, // push ebp
0x8D, 0x8C, 0x24, XX4 // lea ecx,[esp+000000F4]
};
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
if (!addr)
return false;
HookParam hp = {};
hp.address = addr + 1;
hp.offset = pusha_ecx_off -4;
hp.index = 0;
hp.padding = 1;
hp.type = USING_STRING;
hp.filter_fun = BGI56Filter;
ConsoleOutput("vnreng: INSERT BGI5");
NewHook(hp, "BGI5");
return true;
}
bool InsertBGI6Hook()
{
//by Blu3train
/*
* Sample games:
* https://vndb.org/r96578
*/
const BYTE bytes[] = {
0x90, // nop
0x6A, 0xFF, // push -01 << hook here
0x68, XX4, // push BGI.exe+87AF8
0x64, 0xA1, 0x00, 0x00, 0x00, 0x00, // mov eax,fs:[00000000]
0x50, // push eax
0x64, 0x89, 0x25, 0x00, 0x00, 0x00, 0x00, // mov fs:[00000000],esp
0x81, 0xEC, XX4, // sub esp,000009B4
0x8B, 0x84, 0x24, 0xE4, 0x09, 0x00, 0x00 // mov eax,[esp+000009E4]
};
ULONG range = min(processStopAddress - processStartAddress, MAX_REL_ADDR);
ULONG addr = MemDbg::findBytes(bytes, sizeof(bytes), processStartAddress, processStartAddress + range);
if (!addr)
return false;
HookParam hp = {};
hp.address = addr + 1;
hp.offset = pusha_ecx_off -4;
hp.index = 0;
hp.padding = 1;
hp.type = USING_STRING;
hp.filter_fun = BGI56Filter;
ConsoleOutput("vnreng: INSERT BGI6");
NewHook(hp, "BGI6");
return true;
}
} // unnamed
// jichi 5/12/2014: BGI1 and BGI2 game can co-exist, such as 世界と世界の真ん中で
@ -2475,7 +2616,7 @@ bool InsertBGI3Hook()
// Insert BGI2 first.
// Artikash 6/12/2019: In newer games neither exists, but WideCharToMultiByte works, so insert that if BGI2 fails.
bool InsertBGIHook()
{ return InsertBGI2Hook() || (PcHooks::hookOtherPcFunctions(), InsertBGI1Hook()); }
{ return InsertBGI4Hook() || InsertBGI2Hook() || InsertBGI5Hook() || InsertBGI6Hook() || (PcHooks::hookOtherPcFunctions(), InsertBGI1Hook()); }
/********************************************************************************************
Reallive hook: