---
present/present.c | 126 ++++++++++++++++++++++++++++++++++---------------
present/present_priv.h | 1 +
2 files changed, 89 insertions(+), 38 deletions(-)
diff --git a/present/present.c b/present/present.c
index 73d5f69..1bf3a58 100644
--- a/present/present.c
+++ b/present/present.c
@@ -42,6 +42,9 @@ static struct xorg_list present_flip_queue;
#define DebugPresent(x)
#endif
+static void
+present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc);
+
/*
* Copies the update region from a pixmap to the target drawable
*/
@@ -78,6 +81,20 @@ present_copy_region(DrawablePtr drawable,
FreeScratchGC(gc);
}
+static inline PixmapPtr
+present_flip_pending_pixmap(ScreenPtr screen)
+{
+ present_screen_priv_ptr screen_priv = present_screen_priv(screen);
+
+ if (!screen_priv)
+ return NULL;
+
+ if (!screen_priv->flip_pending)
+ return NULL;
+
+ return screen_priv->flip_pending->pixmap;
+}
+
static Bool
present_check_flip(RRCrtcPtr crtc,
WindowPtr window,
@@ -88,6 +105,7 @@ present_check_flip(RRCrtcPtr crtc,
int16_t y_off)
{
ScreenPtr screen = window->drawable.pScreen;
+ PixmapPtr window_pixmap;
WindowPtr root = screen->root;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
@@ -104,19 +122,11 @@ present_check_flip(RRCrtcPtr crtc,
if (!screen_priv->info->flip)
return FALSE;
- /* Can't pend a flip while unflipping */
- if (screen_priv->unflip_event_id) {
- return FALSE;
- }
-
- /* Can't have two pending flips at the same time */
- if (screen_priv->flip_pending) {
- return FALSE;
- }
-
/* Make sure the window hasn't been redirected with Composite */
- if (screen->GetWindowPixmap(window) != screen->GetScreenPixmap(screen) &&
- screen->GetWindowPixmap(window) != screen_priv->flip_pixmap)
+ window_pixmap = screen->GetWindowPixmap(window);
+ if (window_pixmap != screen->GetScreenPixmap(screen) &&
+ window_pixmap != screen_priv->flip_pixmap &&
+ window_pixmap != present_flip_pending_pixmap(screen))
return FALSE;
/* Check for full-screen window */
@@ -147,6 +157,7 @@ present_check_flip(RRCrtcPtr crtc,
/* Ask the driver for permission */
if (screen_priv->info->check_flip) {
if (!(*screen_priv->info->check_flip) (crtc, window, pixmap,
sync_flip)) {
+ DebugPresent(("\td %08lx -> %08lx\n", window->drawable.id, pixmap ?
pixmap->drawable.id : 0));
return FALSE;
}
}
@@ -188,8 +199,10 @@ present_pixmap_idle(PixmapPtr pixmap, WindowPtr window,
CARD32 serial, struct pr
{
if (present_fence)
present_fence_set_triggered(present_fence);
- if (window)
+ if (window) {
+ DebugPresent(("\ti %08lx\n", pixmap ? pixmap->drawable.id : 0));
present_send_idle_notify(window, serial, pixmap, present_fence);
+ }
}
RRCrtcPtr
@@ -227,9 +240,8 @@ present_query_capabilities(RRCrtcPtr crtc)
}
static int
-present_get_ust_msc(WindowPtr window, RRCrtcPtr crtc, uint64_t *ust, uint64_t
*msc)
+present_get_ust_msc(ScreenPtr screen, RRCrtcPtr crtc, uint64_t *ust, uint64_t
*msc)
{
- ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
if (crtc == NULL)
@@ -283,7 +295,7 @@ present_window_to_crtc_msc(WindowPtr window, RRCrtcPtr
crtc, uint64_t window_msc
* we'll just use whatever previous MSC we'd seen from this CRTC
*/
- if (present_get_ust_msc(window, window_priv->crtc, &old_ust, &old_msc) != Success)
+ if (present_get_ust_msc(window->drawable.pScreen, window_priv->crtc,
&old_ust, &old_msc) != Success)
old_msc = window_priv->msc;
window_priv->msc_offset += new_msc - old_msc;
@@ -293,6 +305,34 @@ present_window_to_crtc_msc(WindowPtr window, RRCrtcPtr
crtc, uint64_t window_msc
return window_msc + window_priv->msc_offset;
}
+/*
+ * When the wait fence or previous flip is completed, it's time
+ * to re-try the request
+ */
+static void
+present_re_execute(present_vblank_ptr vblank)
+{
+ uint64_t ust = 0, crtc_msc = 0;
+
+ if (vblank->crtc)
+ (void) present_get_ust_msc(vblank->screen, vblank->crtc, &ust,
&crtc_msc);
+
+ present_execute(vblank, ust, crtc_msc);
+}
+
+static void
+present_flip_try_ready(ScreenPtr screen)
+{
+ present_vblank_ptr vblank, tmp;
+
+ xorg_list_for_each_entry_safe(vblank, tmp, &present_exec_queue,
event_queue) {
+ if (vblank->flip_ready) {
+ present_re_execute(vblank);
+ return;
+ }
+ }
+}
+
static void
present_flip_idle(ScreenPtr screen)
{
@@ -369,16 +409,14 @@ present_unflip(ScreenPtr screen)
}
static void
-present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc);
-
-static void
present_flip_notify(present_vblank_ptr vblank, uint64_t ust, uint64_t
crtc_msc)
{
ScreenPtr screen = vblank->screen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
- DebugPresent(("\tn %p %8lld: %08lx -> %08lx\n", vblank, vblank->target_msc,
- vblank->pixmap ? vblank->pixmap->drawable.id : 0,
+ DebugPresent(("\tn %lld %p %8lld: %08lx -> %08lx\n",
+ vblank->event_id, vblank, vblank->target_msc,
+ vblank->pixmap ? vblank->pixmap->drawable.id : 0,
vblank->window->drawable.id));
assert (vblank == screen_priv->flip_pending);
@@ -404,6 +442,8 @@ present_flip_notify(present_vblank_ptr vblank, uint64_t
ust, uint64_t crtc_msc)
present_vblank_notify(vblank, PresentCompleteKindPixmap, PresentCompleteModeFlip, ust, crtc_msc);
present_vblank_destroy(vblank);
+
+ present_flip_try_ready(screen);
}
void
@@ -436,6 +476,7 @@ present_event_notify(uint64_t event_id, uint64_t ust,
uint64_t msc)
DebugPresent(("\tun %lld\n", event_id));
screen_priv->unflip_event_id = 0;
present_flip_idle(screen);
+ present_flip_try_ready(screen);
return;
}
}
@@ -498,15 +539,7 @@ static void
present_wait_fence_triggered(void *param)
{
present_vblank_ptr vblank = param;
- WindowPtr window = vblank->window;
- uint64_t ust = 0, crtc_msc = 0;
-
- if (window) {
- present_window_priv_ptr window_priv =
present_get_window_priv(window, TRUE);
- if (window_priv)
- (void) present_get_ust_msc(window, window_priv->crtc, &ust,
&crtc_msc);
- }
- present_execute(vblank, ust, crtc_msc);
+ present_re_execute(vblank);
}
/*
@@ -534,14 +567,27 @@ present_execute(present_vblank_ptr vblank, uint64_t ust,
uint64_t crtc_msc)
}
}
+ if (vblank->flip && vblank->pixmap && vblank->window) {
+ if (screen_priv->flip_pending || screen_priv->unflip_event_id) {
+ DebugPresent(("\tr %lld %p (pending %p unflip %lld)\n",
+ vblank->event_id, vblank,
+ screen_priv->flip_pending,
screen_priv->unflip_event_id));
+ vblank->flip_ready = TRUE;
+ return;
+ }
+ }
+
xorg_list_del(&vblank->event_queue);
vblank->queued = FALSE;
if (vblank->pixmap && vblank->window) {
- if (vblank->flip && screen_priv->flip_pending == NULL && !screen_priv->unflip_event_id) {
+ if (vblank->flip) {
+
+ DebugPresent(("\tf %lld %p %8lld: %08lx -> %08lx\n",
+ vblank->event_id, vblank, crtc_msc,
+ vblank->pixmap->drawable.id,
vblank->window->drawable.id));
- DebugPresent(("\tf %p %8lld: %08lx -> %08lx\n", vblank, crtc_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id));
/* Prepare to flip by placing it in the flip queue and
* and sticking it into the flip_pending field
*/
@@ -644,7 +690,7 @@ present_pixmap(WindowPtr window,
uint64_t target_msc;
uint64_t crtc_msc;
int ret;
- present_vblank_ptr vblank;
+ present_vblank_ptr vblank, tmp;
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);
@@ -664,7 +710,7 @@ present_pixmap(WindowPtr window,
target_crtc = present_get_crtc(window);
}
- present_get_ust_msc(window, target_crtc, &ust, &crtc_msc);
+ present_get_ust_msc(screen, target_crtc, &ust, &crtc_msc);
target_msc = present_window_to_crtc_msc(window, target_crtc, window_msc, crtc_msc);
@@ -698,7 +744,7 @@ present_pixmap(WindowPtr window,
*/
if (!update) {
- xorg_list_for_each_entry(vblank, &window_priv->vblank, window_list) {
+ xorg_list_for_each_entry_safe(vblank, tmp, &window_priv->vblank,
window_list) {
if (!vblank->pixmap)
continue;
@@ -706,11 +752,11 @@ present_pixmap(WindowPtr window,
if (!vblank->queued)
continue;
- if (vblank->crtc != target_crtc || vblank->target_msc != target_msc)
+ if (vblank->crtc != target_crtc || vblank->target_msc > target_msc)
continue;
DebugPresent(("\tx %lld %p %8lld: %08lx -> %08lx (crtc %p)\n",
- vblank->event_id, vblank, target_msc,
+ vblank->event_id, vblank, vblank->target_msc,
vblank->pixmap->drawable.id,
vblank->window->drawable.id,
vblank->crtc));
@@ -720,6 +766,9 @@ present_pixmap(WindowPtr window,
vblank->pixmap = NULL;
vblank->idle_fence = NULL;
+ vblank->flip = FALSE;
+ if (vblank->flip_ready)
+ present_re_execute(vblank);
}
}
@@ -875,7 +924,8 @@ present_vblank_destroy(present_vblank_ptr vblank)
/* Remove vblank from window and screen lists */
xorg_list_del(&vblank->window_list);
- DebugPresent(("\td %p %8lld: %08lx -> %08lx\n", vblank, vblank->target_msc,
+ DebugPresent(("\td %lld %p %8lld: %08lx -> %08lx\n",
+ vblank->event_id, vblank, vblank->target_msc,
vblank->pixmap ? vblank->pixmap->drawable.id : 0,
vblank->window->drawable.id));
diff --git a/present/present_priv.h b/present/present_priv.h
index 8d3e007..d8569a2 100644
--- a/present/present_priv.h
+++ b/present/present_priv.h
@@ -71,6 +71,7 @@ struct present_vblank {
int num_notifies;
Bool queued; /* on present_exec_queue */
Bool flip; /* planning on using flip */
+ Bool flip_ready; /* wants to flip, but waiting for
previous flip or unflip */
Bool sync_flip; /* do flip synchronous to vblank */
Bool abort_flip; /* aborting this flip */
};
