128 lines
4.9 KiB
C
128 lines
4.9 KiB
C
/*
|
|
* Copyright © 2013 Keith Packard
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice appear in all copies and that both that copyright
|
|
* notice and this permission notice appear in supporting documentation, and
|
|
* that the name of the copyright holders not be used in advertising or
|
|
* publicity pertaining to distribution of the software without specific,
|
|
* written prior permission. The copyright holders make no representations
|
|
* about the suitability of this software for any purpose. It is provided "as
|
|
* is" without express or implied warranty.
|
|
*
|
|
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
|
* OF THIS SOFTWARE.
|
|
*/
|
|
|
|
#ifndef _PRESENT_H_
|
|
#define _PRESENT_H_
|
|
|
|
#include <X11/extensions/presentproto.h>
|
|
#include "randrstr.h"
|
|
#include "presentext.h"
|
|
|
|
typedef struct present_vblank present_vblank_rec, *present_vblank_ptr;
|
|
|
|
/* Return the current CRTC for 'window'.
|
|
*/
|
|
typedef RRCrtcPtr (*present_get_crtc_ptr) (WindowPtr window);
|
|
|
|
/* Return the current ust/msc for 'crtc'
|
|
*/
|
|
typedef int (*present_get_ust_msc_ptr) (RRCrtcPtr crtc, uint64_t *ust, uint64_t *msc);
|
|
|
|
/* Queue callback on 'crtc' for time 'msc'. Call present_event_notify with 'event_id'
|
|
* at or after 'msc'. Return false if it didn't happen (which might occur if 'crtc'
|
|
* is not currently generating vblanks).
|
|
*/
|
|
typedef Bool (*present_queue_vblank_ptr) (RRCrtcPtr crtc,
|
|
uint64_t event_id,
|
|
uint64_t msc);
|
|
|
|
/* Abort pending vblank. The extension is no longer interested in
|
|
* 'event_id' which was to be notified at 'msc'. If possible, the
|
|
* driver is free to de-queue the notification.
|
|
*/
|
|
typedef void (*present_abort_vblank_ptr) (RRCrtcPtr crtc, uint64_t event_id, uint64_t msc);
|
|
|
|
/* Flush pending drawing on 'window' to the hardware.
|
|
*/
|
|
typedef void (*present_flush_ptr) (WindowPtr window);
|
|
|
|
/* Check if 'pixmap' is suitable for flipping to 'window'.
|
|
*/
|
|
typedef Bool (*present_check_flip_ptr) (RRCrtcPtr crtc, WindowPtr window, PixmapPtr pixmap, Bool sync_flip);
|
|
|
|
/* Flip pixmap, return false if it didn't happen.
|
|
*
|
|
* 'crtc' is to be used for any necessary synchronization.
|
|
*
|
|
* 'sync_flip' requests that the flip be performed at the next
|
|
* vertical blank interval to avoid tearing artifacts. If false, the
|
|
* flip should be performed as soon as possible.
|
|
*
|
|
* present_event_notify should be called with 'event_id' when the flip
|
|
* occurs
|
|
*/
|
|
typedef Bool (*present_flip_ptr) (RRCrtcPtr crtc,
|
|
uint64_t event_id,
|
|
uint64_t target_msc,
|
|
PixmapPtr pixmap,
|
|
Bool sync_flip);
|
|
|
|
/* "unflip" back to the regular screen scanout buffer
|
|
*
|
|
* present_event_notify should be called with 'event_id' when the unflip occurs.
|
|
*/
|
|
typedef void (*present_unflip_ptr) (ScreenPtr screen,
|
|
uint64_t event_id);
|
|
|
|
#define PRESENT_SCREEN_INFO_VERSION 0
|
|
|
|
typedef struct present_screen_info {
|
|
uint32_t version;
|
|
|
|
present_get_crtc_ptr get_crtc;
|
|
present_get_ust_msc_ptr get_ust_msc;
|
|
present_queue_vblank_ptr queue_vblank;
|
|
present_abort_vblank_ptr abort_vblank;
|
|
present_flush_ptr flush;
|
|
uint32_t capabilities;
|
|
present_check_flip_ptr check_flip;
|
|
present_flip_ptr flip;
|
|
present_unflip_ptr unflip;
|
|
|
|
} present_screen_info_rec, *present_screen_info_ptr;
|
|
|
|
/*
|
|
* Called when 'event_id' occurs. 'ust' and 'msc' indicate when the
|
|
* event actually happened
|
|
*/
|
|
extern _X_EXPORT void
|
|
present_event_notify(uint64_t event_id, uint64_t ust, uint64_t msc);
|
|
|
|
/* 'crtc' has been turned off, so any pending events will never occur.
|
|
*/
|
|
extern _X_EXPORT void
|
|
present_event_abandon(RRCrtcPtr crtc);
|
|
|
|
extern _X_EXPORT Bool
|
|
present_screen_init(ScreenPtr screen, present_screen_info_ptr info);
|
|
|
|
typedef void (*present_complete_notify_proc)(WindowPtr window,
|
|
CARD8 mode,
|
|
CARD32 serial,
|
|
uint64_t ust,
|
|
uint64_t msc);
|
|
|
|
extern _X_EXPORT void
|
|
present_register_complete_notify(present_complete_notify_proc proc);
|
|
|
|
#endif /* _PRESENT_H_ */
|