125 lines
3.0 KiB
C++
125 lines
3.0 KiB
C++
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/*++
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Copyright (c) 2002 Microsoft Corporation
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Module Name:
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EA3dSetup.cpp
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Abstract:
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EA Sports titles use something called a "Thrash driver", which is just a
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graphics wrapper library. They currently appear to have at least 2 types,
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one for DX and one for Voodoo. The Voodoo version is not supported on NT,
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because it uses Glide.
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The fix is to modify the registry to prevent the voodoo driver from
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being used. The DirectX fallback works fine.
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Notes:
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This is a application specific shim.
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History:
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01/29/2001 linstev Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(EA3dSetup)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_END
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/*++
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Cleanup voodoo thrash drivers if they're there.
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--*/
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void CleanupVoodoo()
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{
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#define EA_SPORTS_KEY L"SOFTWARE\\EA SPORTS"
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#define THRASH_DRIVER L"Thrash Driver"
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#define VOODOOX L"voodoo"
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#define DIRECTX L"dx"
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HKEY hKey;
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if (RegOpenKeyW(HKEY_LOCAL_MACHINE, EA_SPORTS_KEY, &hKey) == ERROR_SUCCESS) {
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//
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// At least 1 EA Sports title exists, so enumerate through them
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//
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for (int i=0;; i++) {
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WCHAR wzSubKey[MAX_PATH + 1];
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if (RegEnumKeyW(hKey, i, wzSubKey, MAX_PATH + 1) == ERROR_SUCCESS) {
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//
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// Check the THRASH_DRIVER key for voodoo*
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//
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HKEY hSubKey;
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if (RegOpenKeyW(hKey, wzSubKey, &hSubKey) == ERROR_SUCCESS) {
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//
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// Set the value to "dx" if it's voodoo
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//
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DWORD dwType;
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WCHAR wzValue[MAX_PATH + 1] = L"\0";
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DWORD cbData = sizeof(wzValue);
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LONG lRet = RegQueryValueExW(hSubKey, THRASH_DRIVER, NULL, &dwType, (LPBYTE) wzValue, &cbData);
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if ((lRet == ERROR_SUCCESS) &&
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(dwType == REG_SZ) &&
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(_wcsnicmp(wzValue, VOODOOX, wcslen(VOODOOX)) == 0)) {
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cbData = (wcslen(DIRECTX) + 1) * sizeof(WCHAR);
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lRet = RegSetValueExW(hSubKey, THRASH_DRIVER, 0, REG_SZ, (LPBYTE) DIRECTX, cbData);
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if (lRet == ERROR_SUCCESS) {
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LOGN(eDbgLevelError, "Modified VOODOO Thrash driver to DX");
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} else {
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LOGN(eDbgLevelError, "Failed to set VOODOO Thrash driver to DX");
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}
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}
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RegCloseKey(hSubKey);
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}
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} else {
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// Done
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break;
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}
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}
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RegCloseKey(hKey);
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}
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}
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/*++
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Register hooked functions
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--*/
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BOOL
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NOTIFY_FUNCTION(
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DWORD fdwReason)
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{
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if (fdwReason == DLL_PROCESS_DETACH) {
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CleanupVoodoo();
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}
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return TRUE;
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}
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HOOK_BEGIN
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CALL_NOTIFY_FUNCTION
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HOOK_END
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IMPLEMENT_SHIM_END
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