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/* -*- mode: c; c-basic-offset: 3 -*- */
/*
* (c) Copyright IBM Corporation 2002
* 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
* on 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
* VA LINUX SYSTEM, IBM AND/OR THEIR 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.
*
* Authors:
* Ian Romanick <idr@us.ibm.com>
*/
/* $XFree86:$ */
#ifndef DRI_VBLANK_H
#define DRI_VBLANK_H
#include "context.h"
#include "dri_util.h"
#include "xmlconfig.h"
#define VBLANK_FLAG_INTERVAL (1U << 0) /* Respect the swap_interval setting
*/
#define VBLANK_FLAG_THROTTLE (1U << 1) /* Wait 1 refresh since last call.
*/
#define VBLANK_FLAG_SYNC (1U << 2) /* Sync to the next refresh.
*/
#define VBLANK_FLAG_NO_IRQ (1U << 7) /* DRM has no IRQ to wait on.
*/
extern int driGetMSC32( __DRIscreenPrivate * priv, int64_t * count );
extern int driWaitForMSC32( __DRIdrawablePrivate *priv,
int64_t target_msc, int64_t divisor, int64_t remainder, int64_t * msc );
extern GLuint driGetDefaultVBlankFlags( const driOptionCache *optionCache );
extern void driDrawableInitVBlank ( __DRIdrawablePrivate *priv, GLuint flags );
extern int driWaitForVBlank( const __DRIdrawablePrivate *priv,
GLuint * vbl_seq, GLuint flags, GLboolean * missed_deadline );
#undef usleep
#include <unistd.h> /* for usleep() */
#include <sched.h> /* for sched_yield() */
#define DO_USLEEP(nr) \
do { \
if (0) fprintf(stderr, "%s: usleep for %u\n", __FUNCTION__, nr ); \
if (1) usleep( nr ); \
sched_yield(); \
} while( 0 )
#endif /* DRI_VBLANK_H */
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