556 lines
17 KiB
C
556 lines
17 KiB
C
/*
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* Copyright © 2018 Roman Gilg
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of the
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* copyright holders not be used in advertising or publicity
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* pertaining to distribution of the software without specific,
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* written prior permission. The copyright holders make no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied
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* warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#include "xwayland.h"
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#include <present.h>
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/*
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* When not flipping let Present copy with 60fps.
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* When flipping wait on frame_callback, otherwise
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* the surface is not visible, in this case update
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* with long interval.
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*/
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#define TIMER_LEN_COPY 17 // ~60fps
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#define TIMER_LEN_FLIP 1000 // 1fps
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static DevPrivateKeyRec xwl_present_window_private_key;
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static struct xwl_present_window *
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xwl_present_window_priv(WindowPtr window)
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{
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return dixGetPrivate(&window->devPrivates,
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&xwl_present_window_private_key);
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}
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static struct xwl_present_window *
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xwl_present_window_get_priv(WindowPtr window)
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{
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struct xwl_present_window *xwl_present_window = xwl_present_window_priv(window);
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if (xwl_present_window == NULL) {
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xwl_present_window = calloc (1, sizeof (struct xwl_present_window));
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if (!xwl_present_window)
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return NULL;
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xwl_present_window->window = window;
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xwl_present_window->msc = 1;
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xwl_present_window->ust = GetTimeInMicros();
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xorg_list_init(&xwl_present_window->event_list);
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xorg_list_init(&xwl_present_window->release_queue);
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dixSetPrivate(&window->devPrivates,
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&xwl_present_window_private_key,
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xwl_present_window);
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}
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return xwl_present_window;
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}
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static void
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xwl_present_free_timer(struct xwl_present_window *xwl_present_window)
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{
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TimerFree(xwl_present_window->frame_timer);
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xwl_present_window->frame_timer = NULL;
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}
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static CARD32
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xwl_present_timer_callback(OsTimerPtr timer,
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CARD32 time,
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void *arg);
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static inline Bool
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xwl_present_has_events(struct xwl_present_window *xwl_present_window)
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{
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return !xorg_list_is_empty(&xwl_present_window->event_list) ||
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!xorg_list_is_empty(&xwl_present_window->release_queue);
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}
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static inline Bool
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xwl_present_is_flipping(WindowPtr window, struct xwl_window *xwl_window)
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{
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return xwl_window && xwl_window->present_window == window;
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}
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static void
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xwl_present_reset_timer(struct xwl_present_window *xwl_present_window)
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{
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if (xwl_present_has_events(xwl_present_window)) {
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WindowPtr present_window = xwl_present_window->window;
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Bool is_flipping = xwl_present_is_flipping(present_window,
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xwl_window_from_window(present_window));
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xwl_present_window->frame_timer = TimerSet(xwl_present_window->frame_timer,
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0,
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is_flipping ? TIMER_LEN_FLIP :
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TIMER_LEN_COPY,
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&xwl_present_timer_callback,
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xwl_present_window);
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} else {
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xwl_present_free_timer(xwl_present_window);
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}
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}
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void
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xwl_present_cleanup(WindowPtr window)
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{
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struct xwl_window *xwl_window = xwl_window_from_window(window);
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struct xwl_present_window *xwl_present_window = xwl_present_window_priv(window);
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struct xwl_present_event *event, *tmp;
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if (!xwl_present_window)
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return;
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if (xwl_window && xwl_window->present_window == window)
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xwl_window->present_window = NULL;
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if (xwl_present_window->frame_callback) {
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wl_callback_destroy(xwl_present_window->frame_callback);
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xwl_present_window->frame_callback = NULL;
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}
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/* Clear remaining events */
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xorg_list_for_each_entry_safe(event, tmp, &xwl_present_window->event_list, list) {
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xorg_list_del(&event->list);
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free(event);
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}
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/* Clear remaining buffer releases and inform Present about free ressources */
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xorg_list_for_each_entry_safe(event, tmp, &xwl_present_window->release_queue, list) {
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xorg_list_del(&event->list);
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event->abort = TRUE;
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}
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/* Clear timer */
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xwl_present_free_timer(xwl_present_window);
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free(xwl_present_window);
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}
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static void
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xwl_present_free_event(struct xwl_present_event *event)
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{
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xorg_list_del(&event->list);
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free(event);
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}
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static void
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xwl_present_buffer_release(void *data, struct wl_buffer *buffer)
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{
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struct xwl_present_event *event = data;
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if (!event)
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return;
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wl_buffer_set_user_data(buffer, NULL);
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event->buffer_released = TRUE;
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if (event->abort) {
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if (!event->pending)
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xwl_present_free_event(event);
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return;
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}
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if (!event->pending) {
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present_wnmd_event_notify(event->xwl_present_window->window,
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event->event_id,
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event->xwl_present_window->ust,
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event->xwl_present_window->msc);
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xwl_present_free_event(event);
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}
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}
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static const struct wl_buffer_listener xwl_present_release_listener = {
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xwl_present_buffer_release
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};
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static void
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xwl_present_events_notify(struct xwl_present_window *xwl_present_window)
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{
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uint64_t msc = xwl_present_window->msc;
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struct xwl_present_event *event, *tmp;
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xorg_list_for_each_entry_safe(event, tmp,
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&xwl_present_window->event_list,
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list) {
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if (event->target_msc <= msc) {
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present_wnmd_event_notify(xwl_present_window->window,
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event->event_id,
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xwl_present_window->ust,
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msc);
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xwl_present_free_event(event);
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}
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}
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}
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CARD32
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xwl_present_timer_callback(OsTimerPtr timer,
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CARD32 time,
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void *arg)
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{
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struct xwl_present_window *xwl_present_window = arg;
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WindowPtr present_window = xwl_present_window->window;
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struct xwl_window *xwl_window = xwl_window_from_window(present_window);
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xwl_present_window->frame_timer_firing = TRUE;
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xwl_present_window->msc++;
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xwl_present_window->ust = GetTimeInMicros();
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xwl_present_events_notify(xwl_present_window);
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if (xwl_present_has_events(xwl_present_window)) {
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/* Still events, restart timer */
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return xwl_present_is_flipping(present_window, xwl_window) ? TIMER_LEN_FLIP :
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TIMER_LEN_COPY;
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} else {
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/* No more events, do not restart timer and delete it instead */
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xwl_present_free_timer(xwl_present_window);
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return 0;
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}
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}
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static void
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xwl_present_frame_callback(void *data,
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struct wl_callback *callback,
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uint32_t time)
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{
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struct xwl_present_window *xwl_present_window = data;
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wl_callback_destroy(xwl_present_window->frame_callback);
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xwl_present_window->frame_callback = NULL;
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if (xwl_present_window->frame_timer_firing) {
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/* If the timer is firing, this frame callback is too late */
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return;
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}
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xwl_present_window->msc++;
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xwl_present_window->ust = GetTimeInMicros();
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xwl_present_events_notify(xwl_present_window);
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/* we do not need the timer anymore for this frame,
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* reset it for potentially the next one
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*/
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xwl_present_reset_timer(xwl_present_window);
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}
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static const struct wl_callback_listener xwl_present_frame_listener = {
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xwl_present_frame_callback
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};
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static void
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xwl_present_sync_callback(void *data,
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struct wl_callback *callback,
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uint32_t time)
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{
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struct xwl_present_event *event = data;
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struct xwl_present_window *xwl_present_window = event->xwl_present_window;
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event->pending = FALSE;
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if (event->abort) {
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/* Event might have been aborted */
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if (event->buffer_released)
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/* Buffer was already released, cleanup now */
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xwl_present_free_event(event);
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return;
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}
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present_wnmd_event_notify(xwl_present_window->window,
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event->event_id,
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xwl_present_window->ust,
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xwl_present_window->msc);
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if (event->buffer_released)
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/* If the buffer was already released, send the event now again */
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present_wnmd_event_notify(xwl_present_window->window,
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event->event_id,
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xwl_present_window->ust,
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xwl_present_window->msc);
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}
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static const struct wl_callback_listener xwl_present_sync_listener = {
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xwl_present_sync_callback
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};
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static RRCrtcPtr
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xwl_present_get_crtc(WindowPtr present_window)
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{
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struct xwl_present_window *xwl_present_window = xwl_present_window_get_priv(present_window);
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rrScrPrivPtr rr_private;
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if (xwl_present_window == NULL)
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return NULL;
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rr_private = rrGetScrPriv(present_window->drawable.pScreen);
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return rr_private->crtcs[0];
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}
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static int
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xwl_present_get_ust_msc(WindowPtr present_window, uint64_t *ust, uint64_t *msc)
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{
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struct xwl_present_window *xwl_present_window = xwl_present_window_get_priv(present_window);
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if (!xwl_present_window)
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return BadAlloc;
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*ust = xwl_present_window->ust;
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*msc = xwl_present_window->msc;
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return Success;
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}
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/*
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* Queue an event to report back to the Present extension when the specified
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* MSC has past
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*/
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static int
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xwl_present_queue_vblank(WindowPtr present_window,
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RRCrtcPtr crtc,
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uint64_t event_id,
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uint64_t msc)
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{
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struct xwl_window *xwl_window = xwl_window_from_window(present_window);
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struct xwl_present_window *xwl_present_window = xwl_present_window_get_priv(present_window);
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struct xwl_present_event *event;
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if (!xwl_window)
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return BadMatch;
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if (xwl_window->present_window &&
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xwl_window->present_window != present_window)
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return BadMatch;
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event = malloc(sizeof *event);
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if (!event)
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return BadAlloc;
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event->event_id = event_id;
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event->xwl_present_window = xwl_present_window;
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event->target_msc = msc;
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xorg_list_append(&event->list, &xwl_present_window->event_list);
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if (!xwl_present_window->frame_timer)
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xwl_present_reset_timer(xwl_present_window);
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return Success;
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}
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/*
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* Remove a pending vblank event so that it is not reported
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* to the extension
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*/
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static void
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xwl_present_abort_vblank(WindowPtr present_window,
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RRCrtcPtr crtc,
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uint64_t event_id,
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uint64_t msc)
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{
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struct xwl_present_window *xwl_present_window = xwl_present_window_priv(present_window);
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struct xwl_present_event *event, *tmp;
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if (!xwl_present_window)
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return;
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xorg_list_for_each_entry_safe(event, tmp, &xwl_present_window->event_list, list) {
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if (event->event_id == event_id) {
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xorg_list_del(&event->list);
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free(event);
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return;
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}
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}
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xorg_list_for_each_entry(event, &xwl_present_window->release_queue, list) {
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if (event->event_id == event_id) {
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event->abort = TRUE;
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return;
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}
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}
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}
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static void
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xwl_present_flush(WindowPtr window)
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{
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/* Only called when a Pixmap is copied instead of flipped,
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* but in this case we wait on the next block_handler.
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*/
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}
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static Bool
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xwl_present_check_flip2(RRCrtcPtr crtc,
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WindowPtr present_window,
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PixmapPtr pixmap,
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Bool sync_flip,
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PresentFlipReason *reason)
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{
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struct xwl_window *xwl_window = xwl_window_from_window(present_window);
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if (!xwl_window)
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return FALSE;
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/*
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* Do not flip if there is already another child window doing flips.
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*/
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if (xwl_window->present_window &&
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xwl_window->present_window != present_window)
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return FALSE;
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/*
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* We currently only allow flips of windows, that have the same
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* dimensions as their xwl_window parent window. For the case of
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* different sizes subsurfaces are presumably the way forward.
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*/
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if (!RegionEqual(&xwl_window->window->winSize, &present_window->winSize))
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return FALSE;
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return TRUE;
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}
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static Bool
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xwl_present_flip(WindowPtr present_window,
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RRCrtcPtr crtc,
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uint64_t event_id,
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uint64_t target_msc,
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PixmapPtr pixmap,
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Bool sync_flip,
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RegionPtr damage)
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{
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struct xwl_window *xwl_window = xwl_window_from_window(present_window);
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struct xwl_present_window *xwl_present_window = xwl_present_window_priv(present_window);
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BoxPtr damage_box;
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Bool buffer_created;
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struct wl_buffer *buffer;
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struct xwl_present_event *event;
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if (!xwl_window)
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return FALSE;
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damage_box = RegionExtents(damage);
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event = malloc(sizeof *event);
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if (!event)
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return FALSE;
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xwl_window->present_window = present_window;
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buffer = xwl_glamor_pixmap_get_wl_buffer(pixmap, &buffer_created);
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event->event_id = event_id;
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event->xwl_present_window = xwl_present_window;
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event->buffer = buffer;
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event->target_msc = xwl_present_window->msc;
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event->pending = TRUE;
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event->abort = FALSE;
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event->buffer_released = FALSE;
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xorg_list_add(&event->list, &xwl_present_window->release_queue);
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if (buffer_created)
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wl_buffer_add_listener(buffer, &xwl_present_release_listener, NULL);
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wl_buffer_set_user_data(buffer, event);
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/* We can flip directly to the main surface (full screen window without clips) */
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wl_surface_attach(xwl_window->surface, buffer, 0, 0);
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if (!xwl_present_window->frame_timer ||
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xwl_present_window->frame_timer_firing) {
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/* Realign timer */
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xwl_present_window->frame_timer_firing = FALSE;
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xwl_present_reset_timer(xwl_present_window);
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}
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if (!xwl_present_window->frame_callback) {
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xwl_present_window->frame_callback = wl_surface_frame(xwl_window->surface);
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wl_callback_add_listener(xwl_present_window->frame_callback,
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&xwl_present_frame_listener,
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xwl_present_window);
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}
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wl_surface_damage(xwl_window->surface, 0, 0,
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damage_box->x2 - damage_box->x1,
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damage_box->y2 - damage_box->y1);
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wl_surface_commit(xwl_window->surface);
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xwl_present_window->sync_callback = wl_display_sync(xwl_window->xwl_screen->display);
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wl_callback_add_listener(xwl_present_window->sync_callback,
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&xwl_present_sync_listener,
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event);
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wl_display_flush(xwl_window->xwl_screen->display);
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return TRUE;
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}
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static void
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xwl_present_flips_stop(WindowPtr window)
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{
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struct xwl_window *xwl_window = xwl_window_from_window(window);
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struct xwl_present_window *xwl_present_window = xwl_present_window_priv(window);
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if (!xwl_window)
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return;
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assert(xwl_window->present_window == window);
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xwl_window->present_window = NULL;
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/* Change back to the fast refresh rate */
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xwl_present_reset_timer(xwl_present_window);
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}
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static present_wnmd_info_rec xwl_present_info = {
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.version = PRESENT_SCREEN_INFO_VERSION,
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.get_crtc = xwl_present_get_crtc,
|
|
|
|
.get_ust_msc = xwl_present_get_ust_msc,
|
|
.queue_vblank = xwl_present_queue_vblank,
|
|
.abort_vblank = xwl_present_abort_vblank,
|
|
|
|
.flush = xwl_present_flush,
|
|
|
|
.capabilities = PresentCapabilityAsync,
|
|
.check_flip2 = xwl_present_check_flip2,
|
|
.flip = xwl_present_flip,
|
|
.flips_stop = xwl_present_flips_stop
|
|
};
|
|
|
|
Bool
|
|
xwl_present_init(ScreenPtr screen)
|
|
{
|
|
struct xwl_screen *xwl_screen = xwl_screen_get(screen);
|
|
|
|
/*
|
|
* doesn't work with the EGLStream backend.
|
|
*/
|
|
if (xwl_screen->egl_backend == &xwl_screen->eglstream_backend)
|
|
return FALSE;
|
|
|
|
if (!dixRegisterPrivateKey(&xwl_present_window_private_key, PRIVATE_WINDOW, 0))
|
|
return FALSE;
|
|
|
|
return present_wnmd_screen_init(screen, &xwl_present_info);
|
|
}
|