aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/present/present_fake.c
diff options
context:
space:
mode:
authormarha <marha@users.sourceforge.net>2013-11-04 12:08:23 +0100
committermarha <marha@users.sourceforge.net>2013-11-04 12:08:23 +0100
commit31fd4c5654595a4763e492e4ec26f66ca3a8a405 (patch)
tree8d6b249c93725e838676e26af171a167f6f20903 /xorg-server/present/present_fake.c
parente4ef724e06621be9325fc41ed886fd404467fdc0 (diff)
downloadvcxsrv-31fd4c5654595a4763e492e4ec26f66ca3a8a405.tar.gz
vcxsrv-31fd4c5654595a4763e492e4ec26f66ca3a8a405.tar.bz2
vcxsrv-31fd4c5654595a4763e492e4ec26f66ca3a8a405.zip
libxtrans fontconfig mesa xserver pixman xkbcomp git update 4 nov 2013
xserver commit 33c85beed521c9db140cadd8c5aa9992398ee1fe xkbcomp commit e3e6e938535532bfad175c1635256ab7fb3ac943 pixman commit 8cbc7da4e525c96a8e089e4c1baee75dc8315218 libxtrans commit 1fb0fd555a16dd8fce4abc6d3fd22b315f46762a fontconfig commit 767108aa1327cf0156dfc6f024dbc8fb783ae067 mesa commit 2f896627175384fd5943f21804700a155ba4e8a0
Diffstat (limited to 'xorg-server/present/present_fake.c')
-rw-r--r--xorg-server/present/present_fake.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/xorg-server/present/present_fake.c b/xorg-server/present/present_fake.c
new file mode 100644
index 000000000..a67759254
--- /dev/null
+++ b/xorg-server/present/present_fake.c
@@ -0,0 +1,140 @@
+/*
+ * 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"
+#include "list.h"
+
+static struct xorg_list fake_vblank_queue;
+
+typedef struct present_fake_vblank {
+ struct xorg_list list;
+ uint64_t event_id;
+ OsTimerPtr timer;
+ ScreenPtr screen;
+} present_fake_vblank_rec, *present_fake_vblank_ptr;
+
+int
+present_fake_get_ust_msc(ScreenPtr screen, uint64_t *ust, uint64_t *msc)
+{
+ present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+ *ust = GetTimeInMicros();
+ *msc = *ust / screen_priv->fake_interval;
+ return Success;
+}
+
+static void
+present_fake_notify(ScreenPtr screen, uint64_t event_id)
+{
+ uint64_t ust, msc;
+
+ present_fake_get_ust_msc(screen, &ust, &msc);
+ present_event_notify(event_id, ust, msc);
+}
+
+static CARD32
+present_fake_do_timer(OsTimerPtr timer,
+ CARD32 time,
+ pointer arg)
+{
+ present_fake_vblank_ptr fake_vblank = arg;
+
+ present_fake_notify(fake_vblank->screen, fake_vblank->event_id);
+ xorg_list_del(&fake_vblank->list);
+ free(fake_vblank);
+ return 0;
+}
+
+void
+present_fake_abort_vblank(ScreenPtr screen, uint64_t event_id, uint64_t msc)
+{
+ present_fake_vblank_ptr fake_vblank, tmp;
+
+ xorg_list_for_each_entry_safe(fake_vblank, tmp, &fake_vblank_queue, list) {
+ if (fake_vblank->event_id == event_id) {
+ TimerCancel(fake_vblank->timer);
+ xorg_list_del(&fake_vblank->list);
+ free (fake_vblank);
+ break;
+ }
+ }
+}
+
+int
+present_fake_queue_vblank(ScreenPtr screen,
+ uint64_t event_id,
+ uint64_t msc)
+{
+ present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+ uint64_t ust = msc * screen_priv->fake_interval;
+ uint64_t now = GetTimeInMicros();
+ INT32 delay = ((int64_t) (ust - now)) / 1000;
+ present_fake_vblank_ptr fake_vblank;
+
+ if (delay <= 0) {
+ present_fake_notify(screen, event_id);
+ return Success;
+ }
+
+ fake_vblank = calloc (1, sizeof (present_fake_vblank_rec));
+ if (!fake_vblank)
+ return BadAlloc;
+
+ fake_vblank->screen = screen;
+ fake_vblank->event_id = event_id;
+ fake_vblank->timer = TimerSet(NULL, 0, delay, present_fake_do_timer, fake_vblank);
+ if (!fake_vblank->timer) {
+ free(fake_vblank);
+ return BadAlloc;
+ }
+
+ xorg_list_add(&fake_vblank->list, &fake_vblank_queue);
+
+ return Success;
+}
+
+void
+present_fake_screen_init(ScreenPtr screen)
+{
+ present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+ /* For screens with hardware vblank support, the fake code
+ * will be used for off-screen windows and while screens are blanked,
+ * in which case we want a slow interval here
+ *
+ * Otherwise, pretend that the screen runs at 60Hz
+ */
+ if (screen_priv->info && screen_priv->info->get_crtc)
+ screen_priv->fake_interval = 1000000;
+ else
+ screen_priv->fake_interval = 16667;
+}
+
+void
+present_fake_queue_init(void)
+{
+ xorg_list_init(&fake_vblank_queue);
+}