emersion
6 years ago
parent
c67ce71fdd
commit
3aad9fd6a9
@ -0,0 +1,56 @@
|
||||
/*
|
||||
* This an unstable interface of wlroots. No guarantees are made regarding the
|
||||
* future consistency of this API.
|
||||
*/
|
||||
#ifndef WLR_USE_UNSTABLE
|
||||
#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
|
||||
#endif
|
||||
|
||||
#ifndef WLR_TYPES_WLR_PRESENTATION_TIME_H
|
||||
#define WLR_TYPES_WLR_PRESENTATION_TIME_H
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <stddef.h>
|
||||
#include <time.h>
|
||||
#include <wayland-server.h>
|
||||
|
||||
struct wlr_presentation {
|
||||
struct wl_global *global;
|
||||
struct wl_list resources; // wl_resource_get_link
|
||||
struct wl_list feedbacks; // wlr_presentation_feedback::link
|
||||
clockid_t clock;
|
||||
|
||||
struct {
|
||||
struct wl_signal destroy;
|
||||
} events;
|
||||
|
||||
struct wl_listener display_destroy;
|
||||
};
|
||||
|
||||
struct wlr_presentation_feedback {
|
||||
struct wl_resource *resource;
|
||||
struct wlr_presentation *presentation;
|
||||
struct wlr_surface *surface;
|
||||
bool committed;
|
||||
struct wl_list link; // wlr_presentation::feedbacks
|
||||
|
||||
struct wl_listener surface_commit;
|
||||
struct wl_listener surface_destroy;
|
||||
};
|
||||
|
||||
struct wlr_presentation_event {
|
||||
struct wlr_output *output;
|
||||
uint64_t tv_sec;
|
||||
uint32_t tv_nsec;
|
||||
uint32_t refresh;
|
||||
uint64_t seq;
|
||||
uint32_t flags; // wp_presentation_feedback_kind
|
||||
};
|
||||
|
||||
struct wlr_presentation *wlr_presentation_create(struct wl_display *display);
|
||||
void wlr_presentation_destroy(struct wlr_presentation *presentation);
|
||||
void wlr_presentation_send_surface_presented(
|
||||
struct wlr_presentation *presentation, struct wlr_surface *surface,
|
||||
struct wlr_presentation_event *event);
|
||||
|
||||
#endif
|
||||
@ -0,0 +1,222 @@
|
||||
#define _POSIX_C_SOURCE 199309L
|
||||
#include <assert.h>
|
||||
#include <stdlib.h>
|
||||
#include <wlr/types/wlr_presentation_time.h>
|
||||
#include <wlr/types/wlr_surface.h>
|
||||
#include "presentation-time-protocol.h"
|
||||
#include "util/signal.h"
|
||||
|
||||
#define PRESENTATION_VERSION 1
|
||||
|
||||
static struct wlr_presentation_feedback *presentation_feedback_from_resource(
|
||||
struct wl_resource *resource) {
|
||||
assert(wl_resource_instance_of(resource,
|
||||
&wp_presentation_feedback_interface, NULL));
|
||||
return wl_resource_get_user_data(resource);
|
||||
}
|
||||
|
||||
static void feedback_handle_resource_destroy(struct wl_resource *resource) {
|
||||
struct wlr_presentation_feedback *feedback =
|
||||
presentation_feedback_from_resource(resource);
|
||||
wl_list_remove(&feedback->surface_commit.link);
|
||||
wl_list_remove(&feedback->surface_destroy.link);
|
||||
wl_list_remove(&feedback->link);
|
||||
free(feedback);
|
||||
}
|
||||
|
||||
// Destroys the feedback
|
||||
static void feedback_send_presented(struct wlr_presentation_feedback *feedback,
|
||||
struct wlr_presentation_event *event) {
|
||||
struct wl_client *client = wl_resource_get_client(feedback->resource);
|
||||
struct wl_resource *resource;
|
||||
wl_resource_for_each(resource, &event->output->resources) {
|
||||
if (wl_resource_get_client(resource) == client) {
|
||||
wp_presentation_feedback_send_sync_output(feedback->resource,
|
||||
resource);
|
||||
}
|
||||
}
|
||||
|
||||
uint32_t tv_sec_hi = event->tv_sec >> 32;
|
||||
uint32_t tv_sec_lo = event->tv_sec & 0xFFFFFFFF;
|
||||
uint32_t seq_hi = event->seq >> 32;
|
||||
uint32_t seq_lo = event->seq & 0xFFFFFFFF;
|
||||
wp_presentation_feedback_send_presented(feedback->resource,
|
||||
tv_sec_hi, tv_sec_lo, event->tv_nsec, event->refresh, seq_hi, seq_lo,
|
||||
event->flags);
|
||||
|
||||
wl_resource_destroy(feedback->resource);
|
||||
}
|
||||
|
||||
// Destroys the feedback
|
||||
static void feedback_send_discarded(
|
||||
struct wlr_presentation_feedback *feedback) {
|
||||
wp_presentation_feedback_send_discarded(feedback->resource);
|
||||
wl_resource_destroy(feedback->resource);
|
||||
}
|
||||
|
||||
static void feedback_handle_surface_commit(struct wl_listener *listener,
|
||||
void *data) {
|
||||
struct wlr_presentation_feedback *feedback =
|
||||
wl_container_of(listener, feedback, surface_commit);
|
||||
|
||||
if (feedback->committed) {
|
||||
// The content update has been superseded
|
||||
feedback_send_discarded(feedback);
|
||||
} else {
|
||||
feedback->committed = true;
|
||||
}
|
||||
}
|
||||
|
||||
static void feedback_handle_surface_destroy(struct wl_listener *listener,
|
||||
void *data) {
|
||||
struct wlr_presentation_feedback *feedback =
|
||||
wl_container_of(listener, feedback, surface_destroy);
|
||||
feedback_send_discarded(feedback);
|
||||
}
|
||||
|
||||
static const struct wp_presentation_interface presentation_impl;
|
||||
|
||||
static struct wlr_presentation *presentation_from_resource(
|
||||
struct wl_resource *resource) {
|
||||
assert(wl_resource_instance_of(resource, &wp_presentation_interface,
|
||||
&presentation_impl));
|
||||
return wl_resource_get_user_data(resource);
|
||||
}
|
||||
|
||||
static void presentation_handle_feedback(struct wl_client *client,
|
||||
struct wl_resource *resource, struct wl_resource *surface_resource,
|
||||
uint32_t id) {
|
||||
struct wlr_presentation *presentation =
|
||||
presentation_from_resource(resource);
|
||||
struct wlr_surface *surface = wlr_surface_from_resource(surface_resource);
|
||||
|
||||
struct wlr_presentation_feedback *feedback =
|
||||
calloc(1, sizeof(struct wlr_presentation_feedback));
|
||||
if (feedback == NULL) {
|
||||
wl_client_post_no_memory(client);
|
||||
return;
|
||||
}
|
||||
|
||||
uint32_t version = wl_resource_get_version(resource);
|
||||
feedback->resource = wl_resource_create(client,
|
||||
&wp_presentation_feedback_interface, version, id);
|
||||
if (feedback->resource == NULL) {
|
||||
free(feedback);
|
||||
wl_client_post_no_memory(client);
|
||||
return;
|
||||
}
|
||||
wl_resource_set_implementation(feedback->resource, NULL, feedback,
|
||||
feedback_handle_resource_destroy);
|
||||
|
||||
feedback->surface = surface;
|
||||
|
||||
feedback->surface_commit.notify = feedback_handle_surface_commit;
|
||||
wl_signal_add(&surface->events.commit, &feedback->surface_commit);
|
||||
|
||||
feedback->surface_destroy.notify = feedback_handle_surface_destroy;
|
||||
wl_signal_add(&surface->events.destroy, &feedback->surface_destroy);
|
||||
|
||||
wl_list_insert(&presentation->feedbacks, &feedback->link);
|
||||
}
|
||||
|
||||
static void presentation_handle_destroy(struct wl_client *client,
|
||||
struct wl_resource *resource) {
|
||||
wl_resource_destroy(resource);
|
||||
}
|
||||
|
||||
static const struct wp_presentation_interface presentation_impl = {
|
||||
.feedback = presentation_handle_feedback,
|
||||
.destroy = presentation_handle_destroy,
|
||||
};
|
||||
|
||||
static void presentation_handle_resource_destroy(struct wl_resource *resource) {
|
||||
wl_list_remove(wl_resource_get_link(resource));
|
||||
}
|
||||
|
||||
static void presentation_bind(struct wl_client *client, void *data,
|
||||
uint32_t version, uint32_t id) {
|
||||
struct wlr_presentation *presentation = data;
|
||||
|
||||
struct wl_resource *resource = wl_resource_create(client,
|
||||
&wp_presentation_interface, version, id);
|
||||
if (resource == NULL) {
|
||||
wl_client_post_no_memory(client);
|
||||
return;
|
||||
}
|
||||
wl_resource_set_implementation(resource, &presentation_impl, presentation,
|
||||
presentation_handle_resource_destroy);
|
||||
wl_list_insert(&presentation->resources, wl_resource_get_link(resource));
|
||||
|
||||
wp_presentation_send_clock_id(resource, presentation->clock);
|
||||
}
|
||||
|
||||
static void handle_display_destroy(struct wl_listener *listener, void *data) {
|
||||
struct wlr_presentation *presentation =
|
||||
wl_container_of(listener, presentation, display_destroy);
|
||||
wlr_presentation_destroy(presentation);
|
||||
}
|
||||
|
||||
struct wlr_presentation *wlr_presentation_create(struct wl_display *display) {
|
||||
struct wlr_presentation *presentation =
|
||||
calloc(1, sizeof(struct wlr_presentation));
|
||||
if (presentation == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
presentation->global = wl_global_create(display, &wp_presentation_interface,
|
||||
PRESENTATION_VERSION, presentation, presentation_bind);
|
||||
if (presentation->global == NULL) {
|
||||
free(presentation);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
// TODO: get clock from backend
|
||||
presentation->clock = CLOCK_MONOTONIC;
|
||||
|
||||
wl_list_init(&presentation->resources);
|
||||
wl_list_init(&presentation->feedbacks);
|
||||
wl_signal_init(&presentation->events.destroy);
|
||||
|
||||
presentation->display_destroy.notify = handle_display_destroy;
|
||||
wl_display_add_destroy_listener(display, &presentation->display_destroy);
|
||||
|
||||
return presentation;
|
||||
}
|
||||
|
||||
void wlr_presentation_destroy(struct wlr_presentation *presentation) {
|
||||
if (presentation == NULL) {
|
||||
return;
|
||||
}
|
||||
|
||||
wlr_signal_emit_safe(&presentation->events.destroy, presentation);
|
||||
|
||||
wl_global_destroy(presentation->global);
|
||||
|
||||
struct wlr_presentation_feedback *feedback, *feedback_tmp;
|
||||
wl_list_for_each_safe(feedback, feedback_tmp, &presentation->feedbacks,
|
||||
link) {
|
||||
wl_resource_destroy(feedback->resource);
|
||||
}
|
||||
|
||||
struct wl_resource *resource, *resource_tmp;
|
||||
wl_resource_for_each_safe(resource, resource_tmp,
|
||||
&presentation->resources) {
|
||||
wl_resource_destroy(resource);
|
||||
}
|
||||
|
||||
wl_list_remove(&presentation->display_destroy.link);
|
||||
free(presentation);
|
||||
}
|
||||
|
||||
void wlr_presentation_send_surface_presented(
|
||||
struct wlr_presentation *presentation, struct wlr_surface *surface,
|
||||
struct wlr_presentation_event *event) {
|
||||
// TODO: maybe use a hashtable to optimize this function
|
||||
struct wlr_presentation_feedback *feedback, *feedback_tmp;
|
||||
wl_list_for_each_safe(feedback, feedback_tmp,
|
||||
&presentation->feedbacks, link) {
|
||||
if (feedback->surface == surface && feedback->committed) {
|
||||
feedback_send_presented(feedback, event);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue