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/**************************************************************************
*
* Copyright 2009 VMware, Inc.
* Copyright 2008 VMware, Inc.
* All Rights Reserved.
*
* 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, sub license, 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 (including the
* next paragraph) 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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 <windows.h>
#define WGL_WGLEXT_PROTOTYPES
#include <GL/gl.h>
#include <GL/wglext.h>
#include "util/u_debug.h"
#include "stw_device.h"
/**
* Note that our implementation of swap intervals is a bit of a hack.
* We implement it based on querying the time and Sleep()'ing. We don't
* sync to the vblank.
*/
WINGDIAPI BOOL APIENTRY
wglSwapIntervalEXT(int interval)
{
if (interval < 0) {
SetLastError(ERROR_INVALID_DATA);
return FALSE;
}
if (stw_dev && !os_get_option("WGL_SWAP_INTERVAL")) {
stw_dev->swap_interval = interval;
}
return TRUE;
}
WINGDIAPI int APIENTRY
wglGetSwapIntervalEXT(void)
{
return stw_dev ? stw_dev->swap_interval : 0;
}
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