cocco-ddraw/src/versionhelpers.c
2024-05-06 01:23:59 +02:00

72 lines
2 KiB
C

#include <windows.h>
#include "versionhelpers.h"
typedef NTSTATUS(WINAPI* RTLVERIFYVERSIONINFOPROC)(PRTL_OSVERSIONINFOEXW, ULONG, ULONGLONG);
typedef const char* (CDECL* WINE_GET_VERSIONPROC)();
typedef void (CDECL* WINE_GET_HOST_VERSIONPROC)(const char** sysname, const char** release);
static RTLVERIFYVERSIONINFOPROC RtlVerifyVersionInfo;
static WINE_GET_VERSIONPROC wine_get_version;
static WINE_GET_HOST_VERSIONPROC wine_get_host_version;
/* GetProcAddress is rather slow so we use a function to inizialize it once on startup */
void verhelp_init()
{
HMODULE mod = GetModuleHandleA("ntdll.dll");
if (mod)
{
RtlVerifyVersionInfo = (RTLVERIFYVERSIONINFOPROC)GetProcAddress(mod, "RtlVerifyVersionInfo");
wine_get_version = (WINE_GET_VERSIONPROC)GetProcAddress(mod, "wine_get_version");
wine_get_host_version = (WINE_GET_HOST_VERSIONPROC)GetProcAddress(mod, "wine_get_host_version");
}
}
BOOL verhelp_verify_version(PRTL_OSVERSIONINFOEXW versionInfo, ULONG typeMask, ULONGLONG conditionMask)
{
return RtlVerifyVersionInfo ?
RtlVerifyVersionInfo(versionInfo, typeMask, conditionMask) == 0 :
VerifyVersionInfoW(versionInfo, typeMask, conditionMask);
}
const char* verhelp_wine_get_version()
{
return wine_get_version ? wine_get_version() : NULL;
}
void verhelp_wine_get_host_version(const char** sysname, const char** release)
{
if (wine_get_host_version)
{
wine_get_host_version(sysname, release);
return;
}
if (sysname)
*sysname = NULL;
if (release)
*release = NULL;
}
BOOL verhelp_is_wine()
{
return wine_get_version != NULL;
}
BOOL verhelp_is_macos()
{
const char* sysname = NULL;
const char* release = NULL;
verhelp_wine_get_host_version(&sysname, &release);
return sysname && _strcmpi(sysname, "Darwin") == 0;
}
BOOL verhelp_is_linux()
{
const char* sysname = NULL;
const char* release = NULL;
verhelp_wine_get_host_version(&sysname, &release);
return sysname && _strcmpi(sysname, "Linux") == 0;
}