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presentation-time: add protocol implementation

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This commit is contained in:
emersion 2018-09-29 15:38:06 +02:00
parent c67ce71fdd
commit 3aad9fd6a9
5 changed files with 297 additions and 16 deletions
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9
include/wlr/types/meson.build
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@ -5,10 +5,10 @@ install_headers(
'wlr_cursor.h',
'wlr_data_device.h',
'wlr_export_dmabuf_v1.h',
'wlr_gamma_control.h',
'wlr_gamma_control_v1.h',
'wlr_idle.h',
'wlr_gamma_control.h',
'wlr_idle_inhibit_v1.h',
'wlr_idle.h',
'wlr_input_device.h',
'wlr_input_inhibitor.h',
'wlr_keyboard.h',
@ -16,10 +16,11 @@ install_headers(
'wlr_linux_dmabuf_v1.h',
'wlr_list.h',
'wlr_matrix.h',
'wlr_output.h',
'wlr_output_damage.h',
'wlr_output_layout.h',
'wlr_output.h',
'wlr_pointer.h',
'wlr_presentation_time.h',
'wlr_primary_selection.h',
'wlr_region.h',
'wlr_screencopy_v1.h',
@ -36,7 +37,7 @@ install_headers(
'wlr_xcursor_manager.h',
'wlr_xdg_decoration_v1.h',
'wlr_xdg_output_v1.h',
'wlr_xdg_shell.h',
'wlr_xdg_shell_v6.h',
'wlr_xdg_shell.h',
subdir: 'wlr/types',
)

56
include/wlr/types/wlr_presentation_time.h Normal file
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@ -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

1
protocol/meson.build
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@ -11,6 +11,7 @@ else
endif
protocols = [
[wl_protocol_dir, 'stable/presentation-time/presentation-time.xml'],
[wl_protocol_dir, 'stable/xdg-shell/xdg-shell.xml'],
[wl_protocol_dir, 'unstable/idle-inhibit/idle-inhibit-unstable-v1.xml'],
[wl_protocol_dir, 'unstable/linux-dmabuf/linux-dmabuf-unstable-v1.xml'],

25
types/meson.build
View File

@ -9,23 +9,27 @@ lib_wlr_types = static_library(
'seat/wlr_seat_pointer.c',
'seat/wlr_seat_touch.c',
'seat/wlr_seat.c',
'xdg_shell/wlr_xdg_popup.c',
'xdg_shell/wlr_xdg_positioner.c',
'xdg_shell/wlr_xdg_shell.c',
'xdg_shell/wlr_xdg_surface.c',
'xdg_shell/wlr_xdg_toplevel.c',
'tablet_v2/wlr_tablet_v2_pad.c',
'tablet_v2/wlr_tablet_v2_tablet.c',
'tablet_v2/wlr_tablet_v2_tool.c',
'tablet_v2/wlr_tablet_v2.c',
'xdg_shell_v6/wlr_xdg_popup_v6.c',
'xdg_shell_v6/wlr_xdg_positioner_v6.c',
'xdg_shell_v6/wlr_xdg_shell_v6.c',
'xdg_shell_v6/wlr_xdg_surface_v6.c',
'xdg_shell_v6/wlr_xdg_toplevel_v6.c',
'xdg_shell/wlr_xdg_popup.c',
'xdg_shell/wlr_xdg_positioner.c',
'xdg_shell/wlr_xdg_shell.c',
'xdg_shell/wlr_xdg_surface.c',
'xdg_shell/wlr_xdg_toplevel.c',
'wlr_box.c',
'wlr_buffer.c',
'wlr_compositor.c',
'wlr_cursor.c',
'wlr_export_dmabuf_v1.c',
'wlr_gamma_control.c',
'wlr_gamma_control_v1.c',
'wlr_gamma_control.c',
'wlr_idle_inhibit_v1.c',
'wlr_idle.c',
'wlr_input_device.c',
@ -38,17 +42,15 @@ lib_wlr_types = static_library(
'wlr_output_damage.c',
'wlr_output_layout.c',
'wlr_output.c',
'wlr_pointer.c',
'wlr_pointer_constraints_v1.c',
'wlr_pointer.c',
'wlr_presentation_time.c',
'wlr_primary_selection.c',
'wlr_region.c',
'wlr_screencopy_v1.c',
'wlr_screenshooter.c',
'wlr_server_decoration.c',
'wlr_surface.c',
'tablet_v2/wlr_tablet_v2.c',
'tablet_v2/wlr_tablet_v2_pad.c',
'tablet_v2/wlr_tablet_v2_tablet.c',
'tablet_v2/wlr_tablet_v2_tool.c',
'wlr_tablet_pad.c',
'wlr_tablet_tool.c',
'wlr_touch.c',
@ -57,7 +59,6 @@ lib_wlr_types = static_library(
'wlr_xcursor_manager.c',
'wlr_xdg_decoration_v1.c',
'wlr_xdg_output_v1.c',
'wlr_screencopy_v1.c',
),
include_directories: wlr_inc,
dependencies: [pixman, xkbcommon, wayland_server, wlr_protos, libinput],

222
types/wlr_presentation_time.c Normal file
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@ -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);
}
}
}