chenx221/Textractor_test
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

BGI4 engine

Browse Source
This commit is contained in:
Blu3train 2023-04-20 19:39:03 +02:00
parent 233e75225c
commit a1ea69b3f9
1 changed files with 43 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
texthook/engine/engine.cc
View File

@ -2141,6 +2141,48 @@ bool InsertBGI3Hook()
return true;
}
#endif // 0
bool InsertBGI4Hook()
{
/*
* Sample games:
* https://vndb.org/v26664
*/
bool found = false;
const BYTE pattern[] = {
0x55, // 55 push ebp
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, 0x23, 0xFD, 0xFF, 0xFF, // E8 23FDFFFF call saclet.exe+A0990
0x8B, 0xF0, // 8B F0 mov esi,eax
0x8B, 0x45, 0x10, // 8B 45 10 mov eax,[ebp+10]
0x2B, 0xC7, // 2B C7 sub eax,edi
0x74, 0x0C, // 74 0C je saclet.exe+A0C82
0x83, 0xE8, 0x01, // 83 E8 01 sub eax,01
0x75, 0x0C, // 75 0C jne saclet.exe+A0C87
0xBE, 0xE9, 0xFD, 0x00, 0x00, // BE E9FD0000 mov esi,0000FDE9
0xEB, 0x05, // EB 05 jmp saclet.exe+A0C87
0xBE, 0xA4, 0x03, 0x00, 0x00 // BE A4030000 mov esi,000003A4
};
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;
ConsoleOutput("Textractor: INSERT BGI4");
NewHook(hp, "BGI4");
found = true;
}
if (!found) ConsoleOutput("Textractor:BGI4: pattern not found");
return found;
}
} // unnamed
// jichi 5/12/2014: BGI1 and BGI2 game can co-exist, such as 世界と世界の真ん中で
@ -2149,7 +2191,7 @@ 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() || (PcHooks::hookOtherPcFunctions(), InsertBGI1Hook()); }
/********************************************************************************************
Reallive hook: