janwas
4663ac0fe7
the old debug_assert always ran and tested the expression, which slows down release builds. wrapping them in #ifndef NDEBUG is clumsy. the new ASSERT behaves like assert and ENSURE like the old debug_assert. Let's change any time-critical but not-super-important ENSURE to ASSERT to speed up release builds. (already done in bits.h and unique_range.h) This was SVN commit r9362.
101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
/* Copyright (c) 2010 Wildfire Games
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#include "precompiled.h"
|
|
#include "lib/sysdep/os/win/wversion.h"
|
|
|
|
#include "lib/sysdep/os/win/win.h"
|
|
#include "lib/sysdep/os/win/winit.h"
|
|
|
|
WINIT_REGISTER_EARLY_INIT(wversion_Init);
|
|
|
|
|
|
static wchar_t windowsVersionString[20];
|
|
static size_t windowsVersion; // see WVERSION_*
|
|
|
|
|
|
const wchar_t* wversion_Family()
|
|
{
|
|
ENSURE(windowsVersion != 0);
|
|
switch(windowsVersion)
|
|
{
|
|
case WVERSION_2K:
|
|
return L"Win2k";
|
|
case WVERSION_XP:
|
|
return L"WinXP";
|
|
case WVERSION_XP64:
|
|
return L"WinXP64";
|
|
case WVERSION_VISTA:
|
|
return L"Vista";
|
|
case WVERSION_7:
|
|
return L"Win7";
|
|
default:
|
|
return L"Windows";
|
|
}
|
|
}
|
|
|
|
|
|
const wchar_t* wversion_String()
|
|
{
|
|
ENSURE(windowsVersionString[0] != '\0');
|
|
return windowsVersionString;
|
|
}
|
|
|
|
size_t wversion_Number()
|
|
{
|
|
ENSURE(windowsVersion != 0);
|
|
return windowsVersion;
|
|
}
|
|
|
|
|
|
static LibError wversion_Init()
|
|
{
|
|
// note: don't use GetVersion[Ex] because it gives the version of the
|
|
// emulated OS when running an app with compatibility shims enabled.
|
|
HKEY hKey;
|
|
if(RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
|
|
{
|
|
DWORD size = sizeof(windowsVersionString);
|
|
(void)RegQueryValueExW(hKey, L"CurrentVersion", 0, 0, (LPBYTE)windowsVersionString, &size);
|
|
|
|
unsigned major = 0, minor = 0;
|
|
// ICC 11.1.082 generates incorrect code for the following:
|
|
// const int ret = swscanf_s(windowsVersionString, L"%u.%u", &major, &minor);
|
|
std::wstringstream ss(windowsVersionString);
|
|
ss >> major;
|
|
wchar_t dot;
|
|
ss >> dot;
|
|
ENSURE(dot == '.');
|
|
ss >> minor;
|
|
|
|
ENSURE(4 <= major && major <= 0xFF);
|
|
ENSURE(minor <= 0xFF);
|
|
windowsVersion = (major << 8) | minor;
|
|
|
|
RegCloseKey(hKey);
|
|
}
|
|
else
|
|
ENSURE(0);
|
|
|
|
return INFO::OK;
|
|
}
|