diff options
Diffstat (limited to 'mesalib/src/mesa/drivers/dri/common/vblank.h')
| -rw-r--r-- | mesalib/src/mesa/drivers/dri/common/vblank.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/mesalib/src/mesa/drivers/dri/common/vblank.h b/mesalib/src/mesa/drivers/dri/common/vblank.h new file mode 100644 index 000000000..8b2c761a1 --- /dev/null +++ b/mesalib/src/mesa/drivers/dri/common/vblank.h @@ -0,0 +1,75 @@ +/* -*- 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> + */ + +#ifndef DRI_VBLANK_H +#define DRI_VBLANK_H + +#include "main/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. + */ +#define VBLANK_FLAG_SECONDARY (1U << 8) /* Wait for secondary vblank. + */ + +extern int driGetMSC32( __DRIscreenPrivate * priv, int64_t * count ); +extern int driDrawableGetMSC32( __DRIscreenPrivate * priv, + __DRIdrawablePrivate * drawablePrivate, + 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 ); +extern unsigned driGetVBlankInterval( const __DRIdrawablePrivate *priv ); +extern void driGetCurrentVBlank( __DRIdrawablePrivate *priv ); +extern int driWaitForVBlank( __DRIdrawablePrivate *priv, + GLboolean * missed_deadline ); + +#undef usleep +#include <unistd.h> /* for usleep() */ +#include <sched.h> /* for sched_yield() */ + +#ifdef linux +#include <sched.h> /* for sched_yield() */ +#endif + +#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 */ |