179 lines
7.0 KiB
C
179 lines
7.0 KiB
C
/*
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* Copyright © 2013 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting documentation, and
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* that the name of the copyright holders not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no representations
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* about the suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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* OF THIS SOFTWARE.
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*/
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#ifndef _PRESENT_H_
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#define _PRESENT_H_
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#include <X11/extensions/presentproto.h>
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#include "randrstr.h"
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#include "presentext.h"
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typedef enum {
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PRESENT_FLIP_REASON_UNKNOWN,
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PRESENT_FLIP_REASON_BUFFER_FORMAT,
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/* Don't add new flip reasons after the TearFree ones, since it's expected
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* that the TearFree reasons are the highest ones in order to allow doing
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* `reason >= PRESENT_FLIP_REASON_DRIVER_TEARFREE` to check if a reason is
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* PRESENT_FLIP_REASON_DRIVER_TEARFREE{_FLIPPING}.
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*/
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PRESENT_FLIP_REASON_DRIVER_TEARFREE,
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PRESENT_FLIP_REASON_DRIVER_TEARFREE_FLIPPING
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} PresentFlipReason;
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typedef struct present_vblank present_vblank_rec, *present_vblank_ptr;
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/* Return the current CRTC for 'window'.
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*/
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typedef RRCrtcPtr (*present_get_crtc_ptr) (WindowPtr window);
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/* Return the current ust/msc for 'crtc'
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*/
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typedef int (*present_get_ust_msc_ptr) (RRCrtcPtr crtc, uint64_t *ust, uint64_t *msc);
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typedef int (*present_wnmd_get_ust_msc_ptr) (WindowPtr window, uint64_t *ust, uint64_t *msc);
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/* Queue callback on 'crtc' for time 'msc'. Call present_event_notify with 'event_id'
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* at or after 'msc'. Return false if it didn't happen (which might occur if 'crtc'
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* is not currently generating vblanks).
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*/
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typedef Bool (*present_queue_vblank_ptr) (RRCrtcPtr crtc,
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uint64_t event_id,
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uint64_t msc);
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typedef Bool (*present_wnmd_queue_vblank_ptr) (WindowPtr window,
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RRCrtcPtr crtc,
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uint64_t event_id,
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uint64_t msc);
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/* Abort pending vblank. The extension is no longer interested in
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* 'event_id' which was to be notified at 'msc'. If possible, the
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* driver is free to de-queue the notification.
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*/
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typedef void (*present_abort_vblank_ptr) (RRCrtcPtr crtc, uint64_t event_id, uint64_t msc);
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typedef void (*present_wnmd_abort_vblank_ptr) (WindowPtr window,
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RRCrtcPtr crtc,
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uint64_t event_id,
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uint64_t msc);
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/* Flush pending drawing on 'window' to the hardware.
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*/
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typedef void (*present_flush_ptr) (WindowPtr window);
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/* Check if 'pixmap' is suitable for flipping to 'window'.
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*/
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typedef Bool (*present_check_flip_ptr) (RRCrtcPtr crtc, WindowPtr window, PixmapPtr pixmap, Bool sync_flip);
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/* Same as 'check_flip' but it can return a 'reason' why the flip would fail.
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*/
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typedef Bool (*present_check_flip2_ptr) (RRCrtcPtr crtc, WindowPtr window, PixmapPtr pixmap, Bool sync_flip, PresentFlipReason *reason);
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/* Flip pixmap, return false if it didn't happen.
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*
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* 'crtc' is to be used for any necessary synchronization.
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*
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* 'sync_flip' requests that the flip be performed at the next
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* vertical blank interval to avoid tearing artifacts. If false, the
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* flip should be performed as soon as possible.
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*
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* present_event_notify should be called with 'event_id' when the flip
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* occurs
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*/
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typedef Bool (*present_flip_ptr) (RRCrtcPtr crtc,
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uint64_t event_id,
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uint64_t target_msc,
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PixmapPtr pixmap,
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Bool sync_flip);
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/* Flip pixmap for window, return false if it didn't happen.
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*
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* Like present_flip_ptr, additionally with:
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*
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* 'window' used for synchronization.
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*
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*/
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typedef Bool (*present_wnmd_flip_ptr) (WindowPtr window,
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RRCrtcPtr crtc,
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uint64_t event_id,
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uint64_t target_msc,
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PixmapPtr pixmap,
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Bool sync_flip,
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RegionPtr damage);
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/* "unflip" back to the regular screen scanout buffer
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*
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* present_event_notify should be called with 'event_id' when the unflip occurs.
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*/
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typedef void (*present_unflip_ptr) (ScreenPtr screen,
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uint64_t event_id);
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/* Doing flips has been discontinued.
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*
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* Inform driver for potential cleanup on its side.
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*/
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typedef void (*present_wnmd_flips_stop_ptr) (WindowPtr window);
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#define PRESENT_SCREEN_INFO_VERSION 1
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typedef struct present_screen_info {
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uint32_t version;
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present_get_crtc_ptr get_crtc;
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present_get_ust_msc_ptr get_ust_msc;
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present_queue_vblank_ptr queue_vblank;
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present_abort_vblank_ptr abort_vblank;
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present_flush_ptr flush;
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uint32_t capabilities;
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present_check_flip_ptr check_flip;
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present_flip_ptr flip;
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present_unflip_ptr unflip;
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present_check_flip2_ptr check_flip2;
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} present_screen_info_rec, *present_screen_info_ptr;
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/*
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* Called when 'event_id' occurs. 'ust' and 'msc' indicate when the
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* event actually happened
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*/
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extern _X_EXPORT void
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present_event_notify(uint64_t event_id, uint64_t ust, uint64_t msc);
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extern _X_EXPORT Bool
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present_screen_init(ScreenPtr screen, present_screen_info_ptr info);
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extern _X_EXPORT void
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present_check_flips(WindowPtr window);
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typedef void (*present_complete_notify_proc)(WindowPtr window,
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CARD8 kind,
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CARD8 mode,
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CARD32 serial,
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uint64_t ust,
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uint64_t msc);
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extern _X_EXPORT void
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present_register_complete_notify(present_complete_notify_proc proc);
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extern _X_EXPORT Bool
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present_can_window_flip(WindowPtr window);
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extern _X_EXPORT uint32_t FakeScreenFps;
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#endif /* _PRESENT_H_ */
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