xserver/hw/xwayland/xwayland-present.c
Michel Dänzer c38442bc30 xwayland/glamor: Require equal pixmap depths in xwl_glamor_check_flip
This will be needed with the next commit: If a child window completely
obscures a toplevel ancestor of different depth, the child window can
use page flipping only if the depth of the presented pixmap matches that
of the window's backing pixmap, or the former may contain pixel values
which are not suitable for the toplevel window's depth.
2023-07-18 09:34:39 +00:00

1083 lines
34 KiB
C

/*
* Copyright © 2018 Roman Gilg
*
* 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.
*/
#include <xwayland-config.h>
#include <windowstr.h>
#include <present.h>
#include "xwayland-present.h"
#include "xwayland-screen.h"
#include "xwayland-window.h"
#include "xwayland-pixmap.h"
#include "glamor.h"
#include "tearing-control-v1-client-protocol.h"
#define XWL_PRESENT_CAPS PresentCapabilityAsync | PresentCapabilityAsyncMayTear
/*
* When not flipping let Present copy with 60fps.
* When flipping wait on frame_callback, otherwise
* the surface is not visible, in this case update
* with long interval.
*/
#define TIMER_LEN_COPY 17 // ~60fps
#define TIMER_LEN_FLIP 1000 // 1fps
static DevPrivateKeyRec xwl_present_window_private_key;
static struct xwl_present_window *
xwl_present_window_priv(WindowPtr window)
{
return dixGetPrivate(&window->devPrivates,
&xwl_present_window_private_key);
}
static struct xwl_present_window *
xwl_present_window_get_priv(WindowPtr window)
{
struct xwl_present_window *xwl_present_window = xwl_present_window_priv(window);
if (xwl_present_window == NULL) {
xwl_present_window = calloc (1, sizeof (struct xwl_present_window));
if (!xwl_present_window)
return NULL;
xwl_present_window->window = window;
xwl_present_window->msc = 1;
xwl_present_window->ust = GetTimeInMicros();
xorg_list_init(&xwl_present_window->frame_callback_list);
xorg_list_init(&xwl_present_window->wait_list);
xorg_list_init(&xwl_present_window->flip_queue);
xorg_list_init(&xwl_present_window->idle_queue);
dixSetPrivate(&window->devPrivates,
&xwl_present_window_private_key,
xwl_present_window);
}
return xwl_present_window;
}
static struct xwl_present_event *
xwl_present_event_from_id(WindowPtr present_window, uint64_t event_id)
{
present_window_priv_ptr window_priv = present_get_window_priv(present_window, TRUE);
struct xwl_present_event *event;
xorg_list_for_each_entry(event, &window_priv->vblank, vblank.window_list) {
if (event->vblank.event_id == event_id)
return event;
}
return NULL;
}
static struct xwl_present_event *
xwl_present_event_from_vblank(present_vblank_ptr vblank)
{
return container_of(vblank, struct xwl_present_event, vblank);
}
static Bool entered_for_each_frame_callback;
Bool
xwl_present_entered_for_each_frame_callback(void)
{
return entered_for_each_frame_callback;
}
void
xwl_present_for_each_frame_callback(struct xwl_window *xwl_window,
void iter_func(struct xwl_present_window *))
{
struct xwl_present_window *xwl_present_window, *tmp;
if (entered_for_each_frame_callback)
FatalError("Nested xwl_present_for_each_frame_callback call");
entered_for_each_frame_callback = TRUE;
xorg_list_for_each_entry_safe(xwl_present_window, tmp,
&xwl_window->frame_callback_list,
frame_callback_list)
iter_func(xwl_present_window);
entered_for_each_frame_callback = FALSE;
}
static void
xwl_present_free_timer(struct xwl_present_window *xwl_present_window)
{
TimerFree(xwl_present_window->frame_timer);
xwl_present_window->frame_timer = NULL;
xwl_present_window->timer_armed = 0;
}
static CARD32
xwl_present_timer_callback(OsTimerPtr timer,
CARD32 time,
void *arg);
static present_vblank_ptr
xwl_present_get_pending_flip(struct xwl_present_window *xwl_present_window)
{
present_vblank_ptr flip_pending;
if (xorg_list_is_empty(&xwl_present_window->flip_queue))
return NULL;
flip_pending = xorg_list_first_entry(&xwl_present_window->flip_queue, present_vblank_rec,
event_queue);
if (flip_pending->queued)
return NULL;
return flip_pending;
}
static inline Bool
xwl_present_has_pending_events(struct xwl_present_window *xwl_present_window)
{
present_vblank_ptr flip_pending = xwl_present_get_pending_flip(xwl_present_window);
return (flip_pending && flip_pending->sync_flip) ||
!xorg_list_is_empty(&xwl_present_window->wait_list);
}
void
xwl_present_reset_timer(struct xwl_present_window *xwl_present_window)
{
if (xwl_present_has_pending_events(xwl_present_window)) {
struct xwl_window *xwl_window = xwl_window_from_window(xwl_present_window->window);
CARD32 now = GetTimeInMillis();
CARD32 timeout;
if (xwl_window && xwl_window->frame_callback &&
!xorg_list_is_empty(&xwl_present_window->frame_callback_list))
timeout = TIMER_LEN_FLIP;
else
timeout = TIMER_LEN_COPY;
/* Make sure the timer callback runs if at least a second has passed
* since we first armed the timer. This can happen e.g. if the Wayland
* compositor doesn't send a pending frame event, e.g. because the
* Wayland surface isn't visible anywhere.
*/
if (xwl_present_window->timer_armed) {
if ((int)(now - xwl_present_window->timer_armed) > 1000) {
xwl_present_timer_callback(xwl_present_window->frame_timer, now,
xwl_present_window);
return;
}
} else {
xwl_present_window->timer_armed = now;
}
xwl_present_window->frame_timer = TimerSet(xwl_present_window->frame_timer,
0, timeout,
&xwl_present_timer_callback,
xwl_present_window);
} else {
xwl_present_free_timer(xwl_present_window);
}
}
static void
xwl_present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc);
static uint32_t
xwl_present_query_capabilities(present_screen_priv_ptr screen_priv)
{
return XWL_PRESENT_CAPS;
}
static int
xwl_present_get_ust_msc(ScreenPtr screen,
WindowPtr present_window,
uint64_t *ust,
uint64_t *msc)
{
struct xwl_present_window *xwl_present_window = xwl_present_window_get_priv(present_window);
if (!xwl_present_window)
return BadAlloc;
*ust = xwl_present_window->ust;
*msc = xwl_present_window->msc;
return Success;
}
/*
* When the wait fence or previous flip is completed, it's time
* to re-try the request
*/
static void
xwl_present_re_execute(present_vblank_ptr vblank)
{
uint64_t ust = 0, crtc_msc = 0;
(void) xwl_present_get_ust_msc(vblank->screen, vblank->window, &ust, &crtc_msc);
xwl_present_execute(vblank, ust, crtc_msc);
}
static void
xwl_present_flip_try_ready(struct xwl_present_window *xwl_present_window)
{
present_vblank_ptr vblank;
xorg_list_for_each_entry(vblank, &xwl_present_window->flip_queue, event_queue) {
if (vblank->queued) {
xwl_present_re_execute(vblank);
return;
}
}
}
static void
xwl_present_release_pixmap(struct xwl_present_event *event)
{
if (!event->pixmap)
return;
xwl_pixmap_del_buffer_release_cb(event->pixmap);
dixDestroyPixmap(event->pixmap, event->pixmap->drawable.id);
event->pixmap = NULL;
}
static void
xwl_present_free_event(struct xwl_present_event *event)
{
xwl_present_release_pixmap(event);
xorg_list_del(&event->vblank.event_queue);
present_vblank_destroy(&event->vblank);
}
static void
xwl_present_free_idle_vblank(present_vblank_ptr vblank)
{
present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
xwl_present_free_event(xwl_present_event_from_vblank(vblank));
}
static WindowPtr
xwl_present_toplvl_pixmap_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
PixmapPtr pixmap = (*screen->GetWindowPixmap)(window);
WindowPtr w = window;
WindowPtr next_w;
while(w->parent) {
next_w = w->parent;
if ( (*screen->GetWindowPixmap)(next_w) != pixmap) {
break;
}
w = next_w;
}
return w;
}
static void
xwl_present_flips_stop(WindowPtr window)
{
struct xwl_present_window *xwl_present_window = xwl_present_window_priv(window);
present_vblank_ptr vblank, tmp;
/* Change back to the fast refresh rate */
xwl_present_reset_timer(xwl_present_window);
/* Free any left over idle vblanks */
xorg_list_for_each_entry_safe(vblank, tmp, &xwl_present_window->idle_queue, event_queue)
xwl_present_free_idle_vblank(vblank);
if (xwl_present_window->flip_active) {
struct xwl_present_event *event;
vblank = xwl_present_window->flip_active;
event = xwl_present_event_from_vblank(vblank);
if (event->pixmap)
xwl_present_free_idle_vblank(vblank);
else
xwl_present_free_event(event);
xwl_present_window->flip_active = NULL;
}
xwl_present_flip_try_ready(xwl_present_window);
}
static void
xwl_present_flip_notify_vblank(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
{
WindowPtr window = vblank->window;
struct xwl_present_window *xwl_present_window = xwl_present_window_priv(window);
uint8_t mode = PresentCompleteModeFlip;
DebugPresent(("\tn %" PRIu64 " %p %" PRIu64 " %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
vblank->event_id, vblank, vblank->exec_msc, vblank->target_msc,
vblank->pixmap ? vblank->pixmap->drawable.id : 0,
vblank->window ? vblank->window->drawable.id : 0));
assert (&vblank->event_queue == xwl_present_window->flip_queue.next);
xorg_list_del(&vblank->event_queue);
if (xwl_present_window->flip_active) {
struct xwl_present_event *event =
xwl_present_event_from_vblank(xwl_present_window->flip_active);
if (!event->pixmap)
xwl_present_free_event(event);
else
/* Put the previous flip in the idle_queue and wait for further notice from
* the Wayland compositor
*/
xorg_list_append(&xwl_present_window->flip_active->event_queue, &xwl_present_window->idle_queue);
}
xwl_present_window->flip_active = vblank;
if (vblank->reason == PRESENT_FLIP_REASON_BUFFER_FORMAT)
mode = PresentCompleteModeSuboptimalCopy;
present_vblank_notify(vblank, PresentCompleteKindPixmap, mode, ust, crtc_msc);
if (vblank->abort_flip)
xwl_present_flips_stop(window);
xwl_present_flip_try_ready(xwl_present_window);
}
static void
xwl_present_update_window_crtc(present_window_priv_ptr window_priv, RRCrtcPtr crtc, uint64_t new_msc)
{
/* Crtc unchanged, no offset. */
if (crtc == window_priv->crtc)
return;
/* No crtc earlier to offset against, just set the crtc. */
if (window_priv->crtc == PresentCrtcNeverSet) {
window_priv->msc_offset = 0;
window_priv->crtc = crtc;
return;
}
/* In window-mode the last correct msc-offset is always kept
* in window-priv struct because msc is saved per window and
* not per crtc as in screen-mode.
*/
window_priv->msc_offset += new_msc - window_priv->msc;
window_priv->crtc = crtc;
}
void
xwl_present_cleanup(WindowPtr window)
{
struct xwl_present_window *xwl_present_window = xwl_present_window_priv(window);
present_window_priv_ptr window_priv = present_window_priv(window);
struct xwl_present_event *event, *tmp;
if (!xwl_present_window)
return;
xorg_list_del(&xwl_present_window->frame_callback_list);
if (xwl_present_window->sync_callback) {
wl_callback_destroy(xwl_present_window->sync_callback);
xwl_present_window->sync_callback = NULL;
}
/* Clear remaining events */
xorg_list_for_each_entry_safe(event, tmp, &window_priv->vblank, vblank.window_list)
xwl_present_free_event(event);
/* Clear timer */
xwl_present_free_timer(xwl_present_window);
/* Remove from privates so we don't try to access it later */
dixSetPrivate(&window->devPrivates,
&xwl_present_window_private_key,
NULL);
free(xwl_present_window);
}
static void
xwl_present_buffer_release(void *data)
{
struct xwl_present_window *xwl_present_window;
struct xwl_present_event *event = data;
present_vblank_ptr vblank;
if (!event)
return;
vblank = &event->vblank;
present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
xwl_present_window = xwl_present_window_priv(vblank->window);
if (xwl_present_window->flip_active == vblank ||
xwl_present_get_pending_flip(xwl_present_window) == vblank)
xwl_present_release_pixmap(event);
else
xwl_present_free_event(event);
}
static void
xwl_present_msc_bump(struct xwl_present_window *xwl_present_window)
{
present_vblank_ptr flip_pending = xwl_present_get_pending_flip(xwl_present_window);
uint64_t msc = ++xwl_present_window->msc;
present_vblank_ptr vblank, tmp;
xwl_present_window->ust = GetTimeInMicros();
xwl_present_window->timer_armed = 0;
if (flip_pending && flip_pending->sync_flip)
xwl_present_flip_notify_vblank(flip_pending, xwl_present_window->ust, msc);
xorg_list_for_each_entry_safe(vblank, tmp, &xwl_present_window->wait_list, event_queue) {
if (vblank->exec_msc <= msc) {
DebugPresent(("\te %" PRIu64 " ust %" PRIu64 " msc %" PRIu64 "\n",
vblank->event_id, xwl_present_window->ust, msc));
xwl_present_execute(vblank, xwl_present_window->ust, msc);
}
}
}
static CARD32
xwl_present_timer_callback(OsTimerPtr timer,
CARD32 time,
void *arg)
{
struct xwl_present_window *xwl_present_window = arg;
/* If we were expecting a frame callback for this window, it didn't arrive
* in a second. Stop listening to it to avoid double-bumping the MSC
*/
xorg_list_del(&xwl_present_window->frame_callback_list);
xwl_present_msc_bump(xwl_present_window);
xwl_present_reset_timer(xwl_present_window);
return 0;
}
void
xwl_present_frame_callback(struct xwl_present_window *xwl_present_window)
{
xorg_list_del(&xwl_present_window->frame_callback_list);
xwl_present_msc_bump(xwl_present_window);
/* we do not need the timer anymore for this frame,
* reset it for potentially the next one
*/
xwl_present_reset_timer(xwl_present_window);
}
static void
xwl_present_sync_callback(void *data,
struct wl_callback *callback,
uint32_t time)
{
present_vblank_ptr vblank = data;
struct xwl_present_window *xwl_present_window = xwl_present_window_get_priv(vblank->window);
wl_callback_destroy(xwl_present_window->sync_callback);
xwl_present_window->sync_callback = NULL;
xwl_present_flip_notify_vblank(vblank, xwl_present_window->ust, xwl_present_window->msc);
}
static const struct wl_callback_listener xwl_present_sync_listener = {
xwl_present_sync_callback
};
static RRCrtcPtr
xwl_present_get_crtc(present_screen_priv_ptr screen_priv,
WindowPtr present_window)
{
struct xwl_present_window *xwl_present_window = xwl_present_window_get_priv(present_window);
rrScrPrivPtr rr_private;
if (xwl_present_window == NULL)
return NULL;
rr_private = rrGetScrPriv(present_window->drawable.pScreen);
if (rr_private->numCrtcs == 0)
return NULL;
return rr_private->crtcs[0];
}
/*
* Queue an event to report back to the Present extension when the specified
* MSC has passed
*/
static int
xwl_present_queue_vblank(ScreenPtr screen,
WindowPtr present_window,
RRCrtcPtr crtc,
uint64_t event_id,
uint64_t msc)
{
struct xwl_present_window *xwl_present_window = xwl_present_window_get_priv(present_window);
struct xwl_window *xwl_window = xwl_window_from_window(present_window);
struct xwl_present_event *event = xwl_present_event_from_id(present_window, event_id);
if (!event) {
ErrorF("present: Error getting event\n");
return BadImplementation;
}
event->vblank.exec_msc = msc;
xorg_list_del(&event->vblank.event_queue);
xorg_list_append(&event->vblank.event_queue, &xwl_present_window->wait_list);
/* Hook up to frame callback */
if (xwl_window &&
xorg_list_is_empty(&xwl_present_window->frame_callback_list)) {
xorg_list_add(&xwl_present_window->frame_callback_list,
&xwl_window->frame_callback_list);
}
if ((xwl_window && xwl_window->frame_callback) ||
!xwl_present_window->frame_timer)
xwl_present_reset_timer(xwl_present_window);
return Success;
}
/*
* Remove a pending vblank event so that it is not reported
* to the extension
*/
static void
xwl_present_abort_vblank(ScreenPtr screen,
WindowPtr present_window,
RRCrtcPtr crtc,
uint64_t event_id,
uint64_t msc)
{
static Bool called;
if (called)
return;
/* xwl_present_cleanup should have cleaned up everything,
* present_free_window_vblank shouldn't need to call this.
*/
ErrorF("Unexpected call to %s:\n", __func__);
xorg_backtrace();
}
static void
xwl_present_flush(WindowPtr window)
{
glamor_block_handler(window->drawable.pScreen);
}
static void
xwl_present_maybe_set_reason(struct xwl_window *xwl_window, PresentFlipReason *reason)
{
struct xwl_screen *xwl_screen = xwl_window->xwl_screen;
if (!reason || xwl_screen->dmabuf_protocol_version < 4)
return;
if (xwl_window->feedback.unprocessed_feedback_pending) {
xwl_window->feedback.unprocessed_feedback_pending = 0;
*reason = PRESENT_FLIP_REASON_BUFFER_FORMAT;
}
if (xwl_screen->default_feedback.unprocessed_feedback_pending) {
xwl_screen->default_feedback.unprocessed_feedback_pending = 0;
*reason = PRESENT_FLIP_REASON_BUFFER_FORMAT;
}
}
static Bool
xwl_present_check_flip(RRCrtcPtr crtc,
WindowPtr present_window,
PixmapPtr pixmap,
Bool sync_flip,
RegionPtr valid,
int16_t x_off,
int16_t y_off,
PresentFlipReason *reason)
{
WindowPtr toplvl_window = xwl_present_toplvl_pixmap_window(present_window);
struct xwl_window *xwl_window = xwl_window_from_window(present_window);
ScreenPtr screen = pixmap->drawable.pScreen;
if (reason)
*reason = PRESENT_FLIP_REASON_UNKNOWN;
if (!xwl_window)
return FALSE;
xwl_present_maybe_set_reason(xwl_window, reason);
if (!crtc)
return FALSE;
/* Source pixmap must align with window exactly */
if (x_off || y_off)
return FALSE;
/* Valid area must contain window (for simplicity for now just never flip when one is set). */
if (valid)
return FALSE;
/* Flip pixmap must have same dimensions as window */
if (present_window->drawable.width != pixmap->drawable.width ||
present_window->drawable.height != pixmap->drawable.height)
return FALSE;
/* Window must be same region as toplevel window */
if ( !RegionEqual(&present_window->winSize, &toplvl_window->winSize) )
return FALSE;
/* Can't flip if window clipped by children */
if (!RegionEqual(&present_window->clipList, &present_window->winSize))
return FALSE;
if (!xwl_glamor_check_flip(present_window, pixmap))
return FALSE;
/* Can't flip if the window pixmap doesn't match the xwl_window parent
* window's, e.g. because a client redirected this window or one of its
* parents.
*/
if (screen->GetWindowPixmap(xwl_window->window) != screen->GetWindowPixmap(present_window))
return FALSE;
/*
* We currently only allow flips of windows, that have the same
* dimensions as their xwl_window parent window. For the case of
* different sizes subsurfaces are presumably the way forward.
*/
if (!RegionEqual(&xwl_window->window->winSize, &present_window->winSize))
return FALSE;
return TRUE;
}
/*
* 'window' is being reconfigured. Check to see if it is involved
* in flipping and clean up as necessary.
*/
static void
xwl_present_check_flip_window (WindowPtr window)
{
struct xwl_present_window *xwl_present_window = xwl_present_window_priv(window);
present_window_priv_ptr window_priv = present_window_priv(window);
present_vblank_ptr flip_pending;
present_vblank_ptr flip_active;
present_vblank_ptr vblank;
PresentFlipReason reason;
/* If this window hasn't ever been used with Present, it can't be
* flipping
*/
if (!xwl_present_window || !window_priv)
return;
flip_pending = xwl_present_get_pending_flip(xwl_present_window);
flip_active = xwl_present_window->flip_active;
if (flip_pending) {
if (!xwl_present_check_flip(flip_pending->crtc, flip_pending->window, flip_pending->pixmap,
flip_pending->sync_flip, flip_pending->valid, 0, 0, NULL))
flip_pending->abort_flip = TRUE;
} else if (flip_active) {
if (!xwl_present_check_flip(flip_active->crtc, flip_active->window, flip_active->pixmap,
flip_active->sync_flip, flip_active->valid, 0, 0, NULL))
xwl_present_flips_stop(window);
}
/* Now check any queued vblanks */
xorg_list_for_each_entry(vblank, &window_priv->vblank, window_list) {
if (vblank->queued && vblank->flip &&
!xwl_present_check_flip(vblank->crtc, window, vblank->pixmap,
vblank->sync_flip, vblank->valid, 0, 0, &reason)) {
vblank->flip = FALSE;
vblank->reason = reason;
}
}
}
/*
* Clean up any pending or current flips for this window
*/
static void
xwl_present_clear_window_flip(WindowPtr window)
{
/* xwl_present_cleanup cleaned up everything */
}
static Bool
xwl_present_flip(present_vblank_ptr vblank, RegionPtr damage)
{
WindowPtr present_window = vblank->window;
PixmapPtr pixmap = vblank->pixmap;
struct xwl_window *xwl_window = xwl_window_from_window(present_window);
struct xwl_present_window *xwl_present_window = xwl_present_window_priv(present_window);
BoxPtr damage_box;
struct wl_buffer *buffer;
struct xwl_present_event *event = xwl_present_event_from_vblank(vblank);
if (!xwl_window)
return FALSE;
buffer = xwl_glamor_pixmap_get_wl_buffer(pixmap);
if (!buffer) {
ErrorF("present: Error getting buffer\n");
return FALSE;
}
damage_box = RegionExtents(damage);
pixmap->refcnt++;
event->pixmap = pixmap;
xwl_pixmap_set_buffer_release_cb(pixmap, xwl_present_buffer_release, event);
/* We can flip directly to the main surface (full screen window without clips) */
wl_surface_attach(xwl_window->surface, buffer, 0, 0);
if (xorg_list_is_empty(&xwl_present_window->frame_callback_list)) {
xorg_list_add(&xwl_present_window->frame_callback_list,
&xwl_window->frame_callback_list);
}
if (!xwl_window->frame_callback)
xwl_window_create_frame_callback(xwl_window);
xwl_surface_damage(xwl_window->xwl_screen, xwl_window->surface,
damage_box->x1 - present_window->drawable.x,
damage_box->y1 - present_window->drawable.y,
damage_box->x2 - damage_box->x1,
damage_box->y2 - damage_box->y1);
if (xwl_window->tearing_control) {
uint32_t hint;
if (event->async_may_tear)
hint = WP_TEARING_CONTROL_V1_PRESENTATION_HINT_ASYNC;
else
hint = WP_TEARING_CONTROL_V1_PRESENTATION_HINT_VSYNC;
wp_tearing_control_v1_set_presentation_hint(xwl_window->tearing_control, hint);
}
wl_surface_commit(xwl_window->surface);
if (!vblank->sync_flip) {
xwl_present_window->sync_callback =
wl_display_sync(xwl_window->xwl_screen->display);
wl_callback_add_listener(xwl_present_window->sync_callback,
&xwl_present_sync_listener,
&event->vblank);
}
wl_display_flush(xwl_window->xwl_screen->display);
xwl_window->present_flipped = TRUE;
return TRUE;
}
/*
* Once the required MSC has been reached, execute the pending request.
*
* For requests to actually present something, either blt contents to
* the window pixmap or queue a window buffer swap on the backend.
*
* For requests to just get the current MSC/UST combo, skip that part and
* go straight to event delivery.
*/
static void
xwl_present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
{
WindowPtr window = vblank->window;
struct xwl_present_window *xwl_present_window = xwl_present_window_get_priv(window);
present_vblank_ptr flip_pending = xwl_present_get_pending_flip(xwl_present_window);
xorg_list_del(&vblank->event_queue);
if (present_execute_wait(vblank, crtc_msc))
return;
if (flip_pending && vblank->flip && vblank->pixmap && vblank->window) {
DebugPresent(("\tr %" PRIu64 " %p (pending %p)\n",
vblank->event_id, vblank, flip_pending));
xorg_list_append(&vblank->event_queue, &xwl_present_window->flip_queue);
vblank->flip_ready = TRUE;
return;
}
vblank->queued = FALSE;
if (vblank->pixmap && vblank->window) {
ScreenPtr screen = window->drawable.pScreen;
if (vblank->flip) {
RegionPtr damage;
DebugPresent(("\tf %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
vblank->event_id, vblank, crtc_msc,
vblank->pixmap->drawable.id, vblank->window->drawable.id));
/* Set update region as damaged */
if (vblank->update) {
damage = RegionDuplicate(vblank->update);
/* Translate update region to screen space */
assert(vblank->x_off == 0 && vblank->y_off == 0);
RegionTranslate(damage, window->drawable.x, window->drawable.y);
RegionIntersect(damage, damage, &window->clipList);
} else
damage = RegionDuplicate(&window->clipList);
if (xwl_present_flip(vblank, damage)) {
WindowPtr toplvl_window = xwl_present_toplvl_pixmap_window(vblank->window);
PixmapPtr old_pixmap = screen->GetWindowPixmap(window);
/* Replace window pixmap with flip pixmap */
#ifdef COMPOSITE
vblank->pixmap->screen_x = old_pixmap->screen_x;
vblank->pixmap->screen_y = old_pixmap->screen_y;
#endif
present_set_tree_pixmap(toplvl_window, old_pixmap, vblank->pixmap);
vblank->pixmap->refcnt++;
dixDestroyPixmap(old_pixmap, old_pixmap->drawable.id);
/* Report damage */
DamageDamageRegion(&vblank->window->drawable, damage);
RegionDestroy(damage);
/* Put pending flip at the flip queue head */
xorg_list_add(&vblank->event_queue, &xwl_present_window->flip_queue);
/* Realign timer */
xwl_present_reset_timer(xwl_present_window);
return;
}
vblank->flip = FALSE;
}
DebugPresent(("\tc %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
vblank, crtc_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id));
if (flip_pending)
flip_pending->abort_flip = TRUE;
else if (xwl_present_window->flip_active)
xwl_present_flips_stop(window);
present_execute_copy(vblank, crtc_msc);
assert(!vblank->queued);
/* Clear the pixmap field, so this will fall through to present_execute_post next time */
dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
vblank->pixmap = NULL;
if (xwl_present_queue_vblank(screen, window, vblank->crtc,
vblank->event_id, crtc_msc + 1)
== Success)
return;
}
present_execute_post(vblank, ust, crtc_msc);
}
static int
xwl_present_pixmap(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,
uint64_t target_window_msc,
uint64_t divisor,
uint64_t remainder,
present_notify_ptr notifies,
int num_notifies)
{
static uint64_t xwl_present_event_id;
uint64_t ust = 0;
uint64_t target_msc;
uint64_t crtc_msc = 0;
int ret;
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);
struct xwl_present_event *event;
if (!window_priv)
return BadAlloc;
target_crtc = xwl_present_get_crtc(screen_priv, window);
ret = xwl_present_get_ust_msc(screen, window, &ust, &crtc_msc);
xwl_present_update_window_crtc(window_priv, target_crtc, crtc_msc);
if (ret == Success) {
/* Stash the current MSC away in case we need it later
*/
window_priv->msc = crtc_msc;
}
target_msc = present_get_target_msc(target_window_msc + window_priv->msc_offset,
crtc_msc,
divisor,
remainder,
options);
/*
* Look for a matching presentation already on the list...
*/
if (!update && pixmap) {
xorg_list_for_each_entry_safe(vblank, tmp, &window_priv->vblank, window_list) {
if (!vblank->pixmap)
continue;
if (!vblank->queued)
continue;
if (vblank->target_msc != target_msc)
continue;
present_vblank_scrap(vblank);
if (vblank->flip_ready)
xwl_present_re_execute(vblank);
}
}
event = calloc(1, sizeof(*event));
if (!event)
return BadAlloc;
vblank = &event->vblank;
if (!present_vblank_init(vblank, window, pixmap, serial, valid, update, x_off, y_off,
target_crtc, wait_fence, idle_fence, options, XWL_PRESENT_CAPS,
notifies, num_notifies, target_msc, crtc_msc)) {
present_vblank_destroy(vblank);
return BadAlloc;
}
vblank->event_id = ++xwl_present_event_id;
event->async_may_tear = options & PresentOptionAsyncMayTear;
/* Synchronous Xwayland presentations always complete (at least) one frame after they
* are executed
*/
if (event->async_may_tear)
vblank->exec_msc = vblank->target_msc;
else
vblank->exec_msc = vblank->target_msc - 1;
vblank->queued = TRUE;
if (crtc_msc < vblank->exec_msc) {
if (xwl_present_queue_vblank(screen, window, target_crtc, vblank->event_id, vblank->exec_msc) == Success)
return Success;
DebugPresent(("present_queue_vblank failed\n"));
}
xwl_present_execute(vblank, ust, crtc_msc);
return Success;
}
void
xwl_present_unrealize_window(struct xwl_present_window *xwl_present_window)
{
/* The pending frame callback may never be called, so drop it and shorten
* the frame timer interval.
*/
xorg_list_del(&xwl_present_window->frame_callback_list);
/* Make sure the timer callback doesn't get called */
xwl_present_window->timer_armed = 0;
xwl_present_reset_timer(xwl_present_window);
}
Bool
xwl_present_init(ScreenPtr screen)
{
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
present_screen_priv_ptr screen_priv;
if (!xwl_screen->glamor || !xwl_screen->egl_backend)
return FALSE;
if (!present_screen_register_priv_keys())
return FALSE;
if (present_screen_priv(screen))
return TRUE;
screen_priv = present_screen_priv_init(screen);
if (!screen_priv)
return FALSE;
if (!dixRegisterPrivateKey(&xwl_present_window_private_key, PRIVATE_WINDOW, 0))
return FALSE;
screen_priv->query_capabilities = xwl_present_query_capabilities;
screen_priv->get_crtc = xwl_present_get_crtc;
screen_priv->check_flip = xwl_present_check_flip;
screen_priv->check_flip_window = xwl_present_check_flip_window;
screen_priv->clear_window_flip = xwl_present_clear_window_flip;
screen_priv->present_pixmap = xwl_present_pixmap;
screen_priv->queue_vblank = xwl_present_queue_vblank;
screen_priv->flush = xwl_present_flush;
screen_priv->re_execute = xwl_present_re_execute;
screen_priv->abort_vblank = xwl_present_abort_vblank;
return TRUE;
}