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-rw-r--r--xserver/present/present_vblank.c203
1 files changed, 203 insertions, 0 deletions
diff --git a/xserver/present/present_vblank.c b/xserver/present/present_vblank.c
new file mode 100644
index 000000000..2c124f4bb
--- /dev/null
+++ b/xserver/present/present_vblank.c
@@ -0,0 +1,203 @@
+/*
+ * 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.
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include "present_priv.h"
+
+void
+present_vblank_notify(present_vblank_ptr vblank, CARD8 kind, CARD8 mode, uint64_t ust, uint64_t crtc_msc)
+{
+ int n;
+
+ if (vblank->window)
+ present_send_complete_notify(vblank->window, kind, mode, vblank->serial, ust, crtc_msc - vblank->msc_offset);
+ for (n = 0; n < vblank->num_notifies; n++) {
+ WindowPtr window = vblank->notifies[n].window;
+ CARD32 serial = vblank->notifies[n].serial;
+
+ if (window)
+ present_send_complete_notify(window, kind, mode, serial, ust, crtc_msc - vblank->msc_offset);
+ }
+}
+
+present_vblank_ptr
+present_vblank_create(WindowPtr window,
+ PixmapPtr pixmap,
+ CARD32 serial,
+ RegionPtr valid,
+ RegionPtr update,
+ int16_t x_off,
+ int16_t y_off,
+ RRCrtcPtr target_crtc,
+ SyncFence *wait_fence,
+ SyncFence *idle_fence,
+ uint32_t options,
+ const uint32_t *capabilities,
+ present_notify_ptr notifies,
+ int num_notifies,
+ uint64_t *target_msc,
+ uint64_t crtc_msc)
+{
+ ScreenPtr screen = window->drawable.pScreen;
+ present_window_priv_ptr window_priv = present_get_window_priv(window, TRUE);
+ present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+ present_vblank_ptr vblank;
+ PresentFlipReason reason = PRESENT_FLIP_REASON_UNKNOWN;
+
+ vblank = calloc (1, sizeof (present_vblank_rec));
+ if (!vblank)
+ return NULL;
+
+ xorg_list_append(&vblank->window_list, &window_priv->vblank);
+ xorg_list_init(&vblank->event_queue);
+
+ vblank->screen = screen;
+ vblank->window = window;
+ vblank->pixmap = pixmap;
+
+ screen_priv->create_event_id(window_priv, vblank);
+
+ if (pixmap) {
+ vblank->kind = PresentCompleteKindPixmap;
+ pixmap->refcnt++;
+ } else
+ vblank->kind = PresentCompleteKindNotifyMSC;
+
+ vblank->serial = serial;
+
+ if (valid) {
+ vblank->valid = RegionDuplicate(valid);
+ if (!vblank->valid)
+ goto no_mem;
+ }
+ if (update) {
+ vblank->update = RegionDuplicate(update);
+ if (!vblank->update)
+ goto no_mem;
+ }
+
+ vblank->x_off = x_off;
+ vblank->y_off = y_off;
+ vblank->target_msc = *target_msc;
+ vblank->crtc = target_crtc;
+ vblank->msc_offset = window_priv->msc_offset;
+ vblank->notifies = notifies;
+ vblank->num_notifies = num_notifies;
+ vblank->has_suboptimal = (options & PresentOptionSuboptimal);
+ vblank->flip_idler = FALSE;
+
+ if (pixmap != NULL &&
+ !(options & PresentOptionCopy) &&
+ capabilities) {
+ if (msc_is_after(*target_msc, crtc_msc) &&
+ screen_priv->check_flip (target_crtc, window, pixmap, TRUE, valid, x_off, y_off, &reason))
+ {
+ vblank->flip = TRUE;
+ vblank->sync_flip = TRUE;
+ *target_msc = *target_msc - 1;
+ } else if ((*capabilities & PresentCapabilityAsync) &&
+ screen_priv->check_flip (target_crtc, window, pixmap, FALSE, valid, x_off, y_off, &reason))
+ {
+ vblank->flip = TRUE;
+ }
+ }
+ vblank->reason = reason;
+
+ if (wait_fence) {
+ vblank->wait_fence = present_fence_create(wait_fence);
+ if (!vblank->wait_fence)
+ goto no_mem;
+ }
+
+ if (idle_fence) {
+ vblank->idle_fence = present_fence_create(idle_fence);
+ if (!vblank->idle_fence)
+ goto no_mem;
+ }
+
+ if (pixmap)
+ DebugPresent(("q %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 " (crtc %p) flip %d vsync %d serial %d\n",
+ vblank->event_id, vblank, *target_msc,
+ vblank->pixmap->drawable.id, vblank->window->drawable.id,
+ target_crtc, vblank->flip, vblank->sync_flip, vblank->serial));
+ return vblank;
+
+no_mem:
+ vblank->notifies = NULL;
+ present_vblank_destroy(vblank);
+ return NULL;
+}
+
+void
+present_vblank_scrap(present_vblank_ptr vblank)
+{
+ DebugPresent(("\tx %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 " (crtc %p)\n",
+ vblank->event_id, vblank, vblank->target_msc,
+ vblank->pixmap->drawable.id, vblank->window->drawable.id,
+ vblank->crtc));
+
+ present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
+ present_fence_destroy(vblank->idle_fence);
+ dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
+
+ vblank->pixmap = NULL;
+ vblank->idle_fence = NULL;
+ vblank->flip = FALSE;
+}
+
+void
+present_vblank_destroy(present_vblank_ptr vblank)
+{
+ /* Remove vblank from window and screen lists */
+ xorg_list_del(&vblank->window_list);
+ /* Also make sure vblank is removed from event queue (wnmd) */
+ xorg_list_del(&vblank->event_queue);
+
+ DebugPresent(("\td %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
+ vblank->event_id, vblank, vblank->target_msc,
+ vblank->pixmap ? vblank->pixmap->drawable.id : 0,
+ vblank->window ? vblank->window->drawable.id : 0));
+
+ /* Drop pixmap reference */
+ if (vblank->pixmap)
+ dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
+
+ /* Free regions */
+ if (vblank->valid)
+ RegionDestroy(vblank->valid);
+ if (vblank->update)
+ RegionDestroy(vblank->update);
+
+ if (vblank->wait_fence)
+ present_fence_destroy(vblank->wait_fence);
+
+ if (vblank->idle_fence)
+ present_fence_destroy(vblank->idle_fence);
+
+ if (vblank->notifies)
+ present_destroy_notifies(vblank->notifies, vblank->num_notifies);
+
+ free(vblank);
+}
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