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authormarha <marha@users.sourceforge.net>2013-11-07 08:23:50 +0100
committermarha <marha@users.sourceforge.net>2013-11-07 08:23:50 +0100
commit51c3a4e7b08aa904ff2af52a9f6f7adc748b361f (patch)
tree38fa447dc8970b83becb4d35487d2bb2e565301b /xorg-server/present/present.h
parentd79b6645eb21ca82d506ef038b8ea71a1e431f3f (diff)
parent31fd4c5654595a4763e492e4ec26f66ca3a8a405 (diff)
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Merge remote-tracking branch 'origin/released'
* origin/released: libxtrans fontconfig mesa xserver pixman xkbcomp git update 4 nov 2013 Conflicts: xorg-server/Xext/shm.c xorg-server/os/xstrans.c
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+/*
+ * 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);
+
+#endif /* _PRESENT_H_ */