gstreamer/subprojects/gst-plugins-bad/sys/dwrite/gstdwrite-utils.cpp

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/* GStreamer
* Copyright (C) 2023 Seungha Yang <seungha@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/d3d11/gstd3d11.h>
#include "gstdwrite-utils.h"
gboolean
gst_dwrite_is_windows_10_or_greater (void)
{
static gboolean ret = FALSE;
GST_DWRITE_CALL_ONCE_BEGIN {
#if (!GST_D3D11_WINAPI_ONLY_APP)
OSVERSIONINFOEXW osverinfo;
typedef NTSTATUS (WINAPI fRtlGetVersion) (PRTL_OSVERSIONINFOEXW);
fRtlGetVersion *RtlGetVersion = NULL;
HMODULE hmodule = NULL;
memset (&osverinfo, 0, sizeof (OSVERSIONINFOEXW));
osverinfo.dwOSVersionInfoSize = sizeof (OSVERSIONINFOEXW);
hmodule = LoadLibraryW (L"ntdll.dll");
if (!hmodule)
return;
RtlGetVersion =
(fRtlGetVersion *) GetProcAddress (hmodule, "RtlGetVersion");
if (RtlGetVersion) {
RtlGetVersion (&osverinfo);
if (osverinfo.dwMajorVersion > 10 || osverinfo.dwMajorVersion == 10)
ret = TRUE;
}
if (hmodule)
FreeLibrary (hmodule);
#else
ret = TRUE;
#endif
} GST_DWRITE_CALL_ONCE_END;
return ret;
}