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Fix the biker cop drive by patch for Hoodlum EXE

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Silent 2024-02-02 22:06:00 +01:00
parent 0fa88b0260
commit 8e44eb8d7b
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GPG Key ID: AE53149BB0C45AF1
1 changed files with 36 additions and 32 deletions
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68
SilentPatchSA/SilentPatchSA.cpp
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@ -85,6 +85,21 @@ namespace ModCompat
GetModuleHandleEx( GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT|GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, LPCTSTR(address), &result );
return result;
}
// Resolves a re-route if it comes from a no-CD executable
uintptr_t GetFunctionAddrIfRerouted(uintptr_t address)
{
if (*reinterpret_cast<const uint8_t*>(address) == 0xE9)
{
uintptr_t jumpDestination;
Memory::ReadCall(address, jumpDestination);
if (GetModuleHandleFromAddress(address) == GetModuleHandleFromAddress(jumpDestination))
{
return jumpDestination;
}
}
return address;
}
}
}
@ -3180,15 +3195,7 @@ BOOL InjectDelayedPatches_10()
InjectHook( 0x406C78, CdStreamSync::CdStreamInitThread );
{
uintptr_t address;
if ( *(uint8_t*)0x406460 == 0xE9 )
{
ReadCall( 0x406460, address );
}
else
{
address = 0x406460;
}
const uintptr_t address = ModCompat::Utils::GetFunctionAddrIfRerouted(0x406460);
const uintptr_t waitForSingleObject = address + 0x1D;
const uint8_t orgCode[] = { 0x8B, 0x46, 0x04, 0x85, 0xC0, 0x74, 0x10, 0xC6, 0x46, 0x0D, 0x01 };
@ -4060,29 +4067,10 @@ void Patch_SA_10()
// Car explosion crash with multimonitor
// Unitialized collision data breaking stencil shadows
VP::InterceptCall(ModCompat::Utils::GetFunctionAddrIfRerouted(0x40F870) + 0x63, orgMemMgrMalloc, CollisionData_MallocAndInit);
{
uintptr_t pHoodlumCompat;
if ( *(uint8_t*)0x40F870 == 0xE9 )
ReadCall( 0x40F870, pHoodlumCompat );
else
pHoodlumCompat = 0x40F870;
const uintptr_t pMemMgrMalloc = pHoodlumCompat + 0x63;
ReadCall( pMemMgrMalloc, orgMemMgrMalloc );
VP::InjectHook(pMemMgrMalloc, CollisionData_MallocAndInit);
}
{
uintptr_t pHoodlumCompat, pHoodlumCompat2;
if ( *(uint8_t*)0x40F740 == 0xE9 )
{
ReadCall( 0x40F740, pHoodlumCompat );
ReadCall( 0x40F810, pHoodlumCompat2 );
}
else
{
pHoodlumCompat = 0x40F740;
pHoodlumCompat2 = 0x40F810;
}
const uintptr_t pHoodlumCompat = ModCompat::Utils::GetFunctionAddrIfRerouted(0x40F740);
const uintptr_t pHoodlumCompat2 = ModCompat::Utils::GetFunctionAddrIfRerouted(0x40F810);
const uintptr_t pNewAlloc = pHoodlumCompat + 0xC;
ReadCall( pNewAlloc, orgNewAlloc );
@ -4524,7 +4512,23 @@ void Patch_SA_10()
{
using namespace BikerCopsDriveByFix;
InterceptCall(0x41C00E, orgJoinCarWithRoadSystem, JoinCarWithRoadSystem_AbortDriveByTask);
// ModCompat::Utils::GetFunctionAddrIfRerouted won't work here, as the decrypted function is still
// slightly obfuscated compared to the compact EXE deobfuscation
bool HoodlumPatched = false;
if (*reinterpret_cast<const uint8_t*>(0x41BFA0) == 0xE9)
{
uintptr_t backToCruisingIfNoWantedLevel_Obfuscated;
ReadCall(0x41BFA0, backToCruisingIfNoWantedLevel_Obfuscated);
if (ModCompat::Utils::GetModuleHandleFromAddress(backToCruisingIfNoWantedLevel_Obfuscated) == hInstance)
{
VP::InterceptCall(backToCruisingIfNoWantedLevel_Obfuscated + 0x86, orgJoinCarWithRoadSystem, JoinCarWithRoadSystem_AbortDriveByTask);
HoodlumPatched = true;
}
}
if (!HoodlumPatched)
{
InterceptCall(0x41C00E, orgJoinCarWithRoadSystem, JoinCarWithRoadSystem_AbortDriveByTask);
}
}