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On Windows, determine if we're running on a ATI card at startup even in classic.

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Previously, I knew no way of querying for graphics adapter vendors/names from
anything other than OpenGL.  Googling revealed a way to do this with the
Windows API.

git-svn-id: https://svn.eduke32.com/eduke32@2633 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2012-05-05 22:21:49 +00:00
parent 008121cffd
commit dcd66dad62
1 changed files with 27 additions and 0 deletions
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27
polymer/eduke32/build/src/winlayer.c
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@ -646,6 +646,29 @@ static void win_printversion(void)
}
// http://www.gamedev.net/topic/47021-how-to-determine-video-card-with-win32-api
static void determine_ATI(void)
{
DISPLAY_DEVICE DevInfo;
DWORD i;
ZeroMemory(&DevInfo, sizeof(DevInfo));
DevInfo.cb = sizeof(DISPLAY_DEVICE);
for (i=0; EnumDisplayDevices(NULL, i, &DevInfo, 0); i++)
{
if ((DevInfo.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)==0)
continue;
#ifdef UNICODE
#error Not implemented: UNICODE defined, DevInfo.DeviceString is a WCHAR
#endif
// initprintf("%s *** %s\n", DevInfo.DeviceName, DevInfo.DeviceString);
if (!Bmemcmp(DevInfo.DeviceString, "ATI ", 4) || !Bmemcmp(DevInfo.DeviceString, "AMD ", 4))
winlayer_have_ATI = 1;
}
}
int32_t initsystem(void)
{
DEVMODE desktopmode;
@ -686,6 +709,10 @@ int32_t initsystem(void)
OSD_RegisterFunction("maxrefreshfreq", "maxrefreshfreq: maximum display frequency to set for OpenGL Polymost modes (0=no maximum)", set_maxrefreshfreq);
OSD_RegisterFunction("r_windowpositioning", "r_windowpositioning: enable/disable window position memory", set_windowpos);
// See if we're on an ATI card...
determine_ATI();
return 0;
}