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Set up facilities for delayed patching in III/VC

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Silent 2019-08-24 14:31:46 +02:00
parent f9a77d2ddd
commit da5b5b1e12
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GPG key ID: AE53149BB0C45AF1
4 changed files with 55 additions and 6 deletions
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54
SilentPatch/Common.cpp
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@ -19,6 +19,42 @@ namespace HandlingNameLoadFix
}
};
// ============= Delayed patches =============
namespace DelayedPatches
{
static bool delayedPatchesDone = false;
void (*Func)();
static BOOL (*RsEventHandler)(int, void*);
static void (WINAPI **OldSetPreference)(int a, int b);
void WINAPI Inject_MSS(int a, int b)
{
(*OldSetPreference)(a, b);
if ( !std::exchange(delayedPatchesDone, true) )
{
if ( Func != nullptr ) Func();
// So we don't have to revert patches
HMODULE hDummyHandle;
GetModuleHandleEx(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_PIN, (LPCTSTR)&Inject_MSS, &hDummyHandle);
}
}
const auto pInjectMSS = Inject_MSS;
BOOL Inject_UAL(int a, void* b)
{
if ( RsEventHandler(a, b) )
{
if ( !std::exchange(delayedPatchesDone, true) && Func != nullptr )
{
Func();
}
return TRUE;
}
return FALSE;
}
}
namespace Common {
namespace Patches {
void III_VC_Common()
@ -26,6 +62,19 @@ namespace Common {
using namespace Memory;
using namespace hook;
// Delayed patching
{
using namespace DelayedPatches;
auto addr_mssHook = get_pattern( "6A 00 6A 02 6A 10 68 00 7D 00 00", -6 + 2 );
OldSetPreference = *static_cast<decltype(OldSetPreference)*>(addr_mssHook);
Patch( addr_mssHook, &pInjectMSS );
auto addr_ualHook = get_pattern( "FF 15 ? ? ? ? 6A 00 6A 18", 0xA );
ReadCall( addr_ualHook, RsEventHandler );
InjectHook( addr_ualHook, Inject_UAL );
}
// Fixed bomb ownership/bombs saving for bikes
{
auto addr = get_pattern( "83 3C 33 00 74 19 89 F9 E8", 8 );
@ -44,5 +93,10 @@ namespace Common {
InjectHook( findExactWord.get<void>( 0xD ), strncmp_Fix );
}
}
void III_VC_SetDelayedPatchesFunc( void(*func)() )
{
DelayedPatches::Func = std::move(func);
}
}
}

1
SilentPatch/Common.h
View file

@ -5,5 +5,6 @@ namespace Common
namespace Patches
{
void III_VC_Common();
void III_VC_SetDelayedPatchesFunc( void(*func)() );
}
};

3
SilentPatchIII/SilentPatchIII.cpp
View file

@ -981,9 +981,6 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
}
Common::Patches::FixRwcseg_Patterns();
HMODULE hDummyHandle;
GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (LPCWSTR)&DllMain, &hDummyHandle);
}
return TRUE;
}

3
SilentPatchVC/SilentPatchVC.cpp
View file

@ -810,9 +810,6 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
}
Common::Patches::FixRwcseg_Patterns();
HMODULE hDummyHandle;
GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, (LPCWSTR)&DllMain, &hDummyHandle);
}
return TRUE;
}