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Fixed GetOverlappedResult return values (more future proof)

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ModloaderCdStreamRaceConditionAware so SP knows when ML patches cdstream race condition
This commit is contained in:
Silent 2017-09-23 13:21:10 +02:00
parent 5c48418aae
commit 498ef74988
1 changed files with 110 additions and 65 deletions
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175
SilentPatchSA/SilentPatchSA.cpp
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@ -23,6 +23,53 @@
#include "debugmenu_public.h"
// ============= Mod compatibility stuff =============
namespace ModCompat
{
bool SkygfxPatchesMoonphases( HMODULE module )
{
if ( module == nullptr ) return false; // SkyGfx not installed
struct Config
{
uint32_t version;
// The rest isn't relevant at the moment
};
auto func = (Config*(*)())GetProcAddress( module, "GetConfig" );
if ( func == nullptr ) return false; // Old version?
const Config* config = func();
if ( config == nullptr ) return false; // Old version/error?
constexpr uint32_t SKYGFX_VERSION_WITH_MOONPHASES = 0x360;
return config->version >= SKYGFX_VERSION_WITH_MOONPHASES;
}
bool bCdStreamFallBackForOldML = false;
bool ModloaderCdStreamRaceConditionAware( HMODULE module )
{
if ( module == nullptr ) return false; // modloader not installed
HMODULE stdStreamModule = nullptr;
GetModuleHandleEx( 0, TEXT("std.stream.dll"), &stdStreamModule );
if ( stdStreamModule == nullptr ) return false; // std.data not loaded
// ML is installed, so if it's an old version we need to fall back to a less safe implementation (no condition variables)
bCdStreamFallBackForOldML = true;
bool aware = false;
const auto func = (uint32_t(*)())GetProcAddress( stdStreamModule, "CdStreamRaceConditionAware" );
if ( func != nullptr )
{
aware = func() >= 1;
}
FreeLibrary( stdStreamModule );
return aware;
}
}
#pragma warning(disable:4733)
// RW wrappers
@ -1240,6 +1287,14 @@ static void __stdcall CdStreamShutdownSyncObject_Stub( CdStream* stream, size_t
CdStreamShutdownSyncObject( &stream[idx] );
}
// Fixed return values for GetOverlappedResult - stock code assumes "nonzero" equals 1, might not be future proof
static uint32_t WINAPI GetOverlappedResult_SilentPatch( HANDLE hFile, LPOVERLAPPED lpOverlapped, LPDWORD lpNumberOfBytesTransferred, BOOL bWait )
{
return GetOverlappedResult( hFile, lpOverlapped, lpNumberOfBytesTransferred, bWait ) != FALSE ? 0 : 254;
}
static auto* const pGetOverlappedResult = &GetOverlappedResult_SilentPatch;
namespace Sema
{
CdStream::Sync __stdcall InitializeSyncObject()
@ -1340,7 +1395,7 @@ namespace CV
static void (*orgCdStreamInitThread)();
static void CdStreamInitThread()
{
if ( GetASIModuleHandle( L"modloader" ) == nullptr && CV::Funcs::TryInit() )
if ( ModCompat::bCdStreamFallBackForOldML != true && CV::Funcs::TryInit() )
{
CdStreamInitializeSyncObject = CV::InitializeSyncObject;
CdStreamShutdownSyncObject = CV::ShutdownSyncObject;
@ -1362,32 +1417,6 @@ static void CdStreamInitThread()
}
// ============= Mod compatibility stuff =============
namespace ModCompat
{
bool SkygfxPatchesMoonphases( HMODULE module )
{
if ( module == nullptr ) return false; // SkyGfx not installed
struct Config
{
uint32_t version;
// The rest isn't relevant at the moment
};
auto func = (Config*(*)())GetProcAddress( module, "GetConfig" );
if ( func == nullptr ) return false; // Old version?
const Config* config = func();
if ( config == nullptr ) return false; // Old version/error?
constexpr uint32_t SKYGFX_VERSION_WITH_MOONPHASES = 0x360;
return config->version >= SKYGFX_VERSION_WITH_MOONPHASES;
}
}
#if MEM_VALIDATORS
#include <intrin.h>
@ -2545,6 +2574,7 @@ BOOL InjectDelayedPatches_10()
const bool bSARender = GetASIModuleHandleW(L"SARender") != nullptr;
const HMODULE skygfxModule = GetASIModuleHandle( TEXT("skygfx") );
const HMODULE modloaderModule = GetASIModuleHandle( TEXT("modloader") );
ReadRotorFixExceptions(wcModulePath);
const bool bHookDoubleRwheels = ReadDoubleRearWheels(wcModulePath);
@ -2831,6 +2861,59 @@ BOOL InjectDelayedPatches_10()
{
InjectHook(0x713ACB, HandleMoonStuffStub, PATCH_JUMP);
}
// Race condition in CdStream fixed
// Not taking effect with modloader
if ( !ModCompat::ModloaderCdStreamRaceConditionAware( modloaderModule ) )
{
ReadCall( 0x406C78, CdStreamSync::orgCdStreamInitThread );
InjectHook( 0x406C78, CdStreamSync::CdStreamInitThread );
{
uintptr_t address;
if ( *(uint8_t*)0x406460 == 0xE9 )
{
ReadCall( 0x406460, address );
}
else
{
address = 0x406460;
}
const uintptr_t waitForSingleObject = address + 0x1D;
const uint8_t orgCode[] = { 0x8B, 0x46, 0x04, 0x85, 0xC0, 0x74, 0x10, 0xC6, 0x46, 0x0D, 0x01 };
if ( memcmp( orgCode, (void*)waitForSingleObject, sizeof(orgCode) ) == 0 )
{
VP::Patch( waitForSingleObject, { 0x56, 0xFF, 0x15 } );
VP::Patch( waitForSingleObject + 3, &CdStreamSync::CdStreamSyncOnObject );
VP::Patch( waitForSingleObject + 3 + 4, { 0x5E, 0xC3 } );
{
const uint8_t orgCode1[] = { 0xFF, 0x15 };
const uint8_t orgCode2[] = { 0x48, 0xF7, 0xD8 };
const uintptr_t getOverlappedResult = address + 0x5F;
if ( memcmp( orgCode1, (void*)getOverlappedResult, sizeof(orgCode1) ) == 0 &&
memcmp( orgCode2, (void*)(getOverlappedResult + 6), sizeof(orgCode2) ) == 0 )
{
VP::Patch( getOverlappedResult + 2, &CdStreamSync::pGetOverlappedResult );
VP::Patch( getOverlappedResult + 6, { 0x5E, 0xC3 } ); // pop esi / retn
}
}
}
}
Patch( 0x406669, { 0x56, 0xFF, 0x15 } );
Patch( 0x406669 + 3, &CdStreamSync::CdStreamThreadOnObject );
Patch( 0x406669 + 3 + 4, { 0xEB, 0x0F } );
Patch( 0x406910, { 0xFF, 0x15 } );
Patch( 0x406910 + 2, &CdStreamSync::CdStreamInitializeSyncObject );
Nop( 0x406910 + 6, 4 );
Nop( 0x406910 + 0x16, 2 );
Patch( 0x4063B5, { 0x56, 0x50 } );
InjectHook( 0x4063B5 + 2, CdStreamSync::CdStreamShutdownSyncObject_Stub, PATCH_CALL );
}
FLAUtils::Init();
@ -3822,44 +3905,6 @@ void Patch_SA_10()
Patch<float>(0x5D88F9 + 6, 0);
Patch<float>(0x5D8903 + 6, 0);
Patch<float>(0x5D890D + 6, 0);
// Race condition in CdStream fixed
ReadCall( 0x406C78, CdStreamSync::orgCdStreamInitThread );
InjectHook( 0x406C78, CdStreamSync::CdStreamInitThread );
{
uintptr_t address;
if ( *(uint8_t*)0x406460 == 0xE9 )
{
ReadCall( 0x406460, address );
address += 0x1D;
}
else
{
address = 0x406460 + 0x1D;
}
const uint8_t orgCode[] = { 0x8B, 0x46, 0x04, 0x85, 0xC0, 0x74, 0x10, 0xC6, 0x46, 0x0D, 0x01 };
if ( memcmp( orgCode, (void*)address, sizeof(orgCode) ) == 0 )
{
VP::Patch( address, { 0x56, 0xFF, 0x15 } );
VP::Patch( address + 3, &CdStreamSync::CdStreamSyncOnObject );
VP::Patch( address + 3 + 4, { 0x5E, 0xC3 } );
}
}
Patch( 0x406669, { 0x56, 0xFF, 0x15 } );
Patch( 0x406669 + 3, &CdStreamSync::CdStreamThreadOnObject );
Patch( 0x406669 + 3 + 4, { 0xEB, 0x0F } );
Patch( 0x406910, { 0xFF, 0x15 } );
Patch( 0x406910 + 2, &CdStreamSync::CdStreamInitializeSyncObject );
Nop( 0x406910 + 6, 4 );
Nop( 0x406926, 2 );
Patch( 0x4063B5, { 0x56, 0x50 } );
InjectHook( 0x4063B5 + 2, CdStreamSync::CdStreamShutdownSyncObject_Stub, PATCH_CALL );
}
void Patch_SA_11()