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XP-friendly CVs

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Silent 2017-09-20 15:15:29 +02:00
parent bda0c717a6
commit a3bbfd2cd3
1 changed files with 31 additions and 12 deletions
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43
SilentPatchSA/SilentPatchSA.cpp
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@ -1284,10 +1284,30 @@ namespace Sema
namespace CV
{
namespace Funcs
{
static decltype(InitializeConditionVariable)* pInitializeConditionVariable = nullptr;
static decltype(SleepConditionVariableCS)* pSleepConditionVariableCS = nullptr;
static decltype(WakeConditionVariable)* pWakeConditionVariable = nullptr;
static bool TryInit()
{
const HMODULE kernelDLL = GetModuleHandle( TEXT("kernel32") );
assert( kernelDLL != nullptr );
pInitializeConditionVariable = (decltype(pInitializeConditionVariable))GetProcAddress( kernelDLL, "InitializeConditionVariable" );
pSleepConditionVariableCS = (decltype(pSleepConditionVariableCS))GetProcAddress( kernelDLL, "SleepConditionVariableCS" );
pWakeConditionVariable = (decltype(pWakeConditionVariable))GetProcAddress( kernelDLL, "WakeConditionVariable" );
return pInitializeConditionVariable != nullptr && pSleepConditionVariableCS != nullptr && pWakeConditionVariable != nullptr;
}
}
CdStream::Sync __stdcall InitializeSyncObject()
{
CdStream::Sync object;
InitializeConditionVariable( &object.cv );
Funcs::pInitializeConditionVariable( &object.cv );
return object;
}
@ -1300,7 +1320,7 @@ namespace CV
EnterCriticalSection( &CdStreamCritSec );
while ( stream->nSectorsToRead != 0 )
{
SleepConditionVariableCS( &stream->sync.cv, &CdStreamCritSec, INFINITE );
Funcs::pSleepConditionVariableCS( &stream->sync.cv, &CdStreamCritSec, INFINITE );
}
stream->bInUse = 0;
LeaveCriticalSection( &CdStreamCritSec );
@ -1311,7 +1331,7 @@ namespace CV
{
EnterCriticalSection( &CdStreamCritSec );
stream->nSectorsToRead = 0;
WakeConditionVariable( &stream->sync.cv );
Funcs::pWakeConditionVariable( &stream->sync.cv );
stream->bInUse = 0;
LeaveCriticalSection( &CdStreamCritSec );
}
@ -1320,21 +1340,20 @@ namespace CV
static void (*orgCdStreamInitThread)();
static void CdStreamInitThread()
{
// TODO: Branch for XP
if ( GetASIModuleHandle( L"modloader" ) != nullptr )
{
CdStreamInitializeSyncObject = Sema::InitializeSyncObject;
CdStreamShutdownSyncObject = Sema::ShutdownSyncObject;
CdStreamSyncOnObject = Sema::CdStreamSync;
CdStreamThreadOnObject = Sema::CdStreamThread;
}
else
if ( GetASIModuleHandle( L"modloader" ) == nullptr && CV::Funcs::TryInit() )
{
CdStreamInitializeSyncObject = CV::InitializeSyncObject;
CdStreamShutdownSyncObject = CV::ShutdownSyncObject;
CdStreamSyncOnObject = CV::CdStreamSync;
CdStreamThreadOnObject = CV::CdStreamThread;
}
else
{
CdStreamInitializeSyncObject = Sema::InitializeSyncObject;
CdStreamShutdownSyncObject = Sema::ShutdownSyncObject;
CdStreamSyncOnObject = Sema::CdStreamSync;
CdStreamThreadOnObject = Sema::CdStreamThread;
}
InitializeCriticalSectionAndSpinCount( &CdStreamCritSec, 10 );