staging/tearing-control: Add protocol support
This commit is contained in:
vaxerski
Simon Zeni
parent
eacb4cf6d2
commit
5dec1c8bcb
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@ -0,0 +1,60 @@
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/*
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* This an unstable interface of wlroots. No guarantees are made regarding the
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* future consistency of this API.
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*/
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#ifndef WLR_USE_UNSTABLE
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#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
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#endif
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#ifndef WLR_TYPES_WLR_TEARING_CONTROL_MANAGER_V1_H
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#define WLR_TYPES_WLR_TEARING_CONTROL_MANAGER_V1_H
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#include <stdint.h>
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#include <wayland-server-core.h>
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#include <wayland-server-protocol.h>
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#include <wlr/types/wlr_compositor.h>
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#include "tearing-control-v1-protocol.h"
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struct wlr_tearing_control_v1 {
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uint32_t hint;
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struct wl_client *client;
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struct wl_list link;
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struct wl_resource *resource;
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struct {
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struct wl_signal set_hint;
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struct wl_signal destroy;
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} events;
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struct wlr_surface *surface;
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struct wlr_addon addon;
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};
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struct wlr_tearing_control_manager_v1 {
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struct wl_global *global;
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struct wl_list surface_hints; // wlr_tearing_control_v1.link
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struct wl_listener display_destroy;
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struct {
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struct wl_signal new_object; // struct wlr_tearing_control_v1*
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struct wl_signal destroy;
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} events;
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void *data;
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};
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struct wlr_tearing_control_manager_v1 *wlr_tearing_control_manager_v1_create(
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struct wl_display *display, uint32_t version);
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/**
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* Returns the tearing hint for a given surface
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*/
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enum wp_tearing_control_v1_presentation_hint
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wlr_tearing_control_manager_v1_surface_hint_from_surface(
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struct wlr_tearing_control_manager_v1 *manager,
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struct wlr_surface *surface);
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#endif
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@ -27,6 +27,7 @@ protocols = {
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'single-pixel-buffer-v1': wl_protocol_dir / 'staging/single-pixel-buffer/single-pixel-buffer-v1.xml',
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'xdg-activation-v1': wl_protocol_dir / 'staging/xdg-activation/xdg-activation-v1.xml',
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'xwayland-shell-v1': wl_protocol_dir / 'staging/xwayland-shell/xwayland-shell-v1.xml',
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'tearing-control-v1': wl_protocol_dir / 'staging/tearing-control/tearing-control-v1.xml',
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# Unstable upstream protocols
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'fullscreen-shell-unstable-v1': wl_protocol_dir / 'unstable/fullscreen-shell/fullscreen-shell-unstable-v1.xml',
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@ -91,6 +91,7 @@ wlr_files += files(
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'wlr_xdg_foreign_v2.c',
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'wlr_xdg_foreign_registry.c',
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'wlr_xdg_output_v1.c',
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'wlr_tearing_control_v1.c',
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)
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if features.get('drm-backend')
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@ -0,0 +1,204 @@
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#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <stdlib.h>
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#include <wayland-server-core.h>
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#include <wlr/types/wlr_compositor.h>
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#include <wlr/types/wlr_tearing_control_v1.h>
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#include <wlr/util/log.h>
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#include "tearing-control-v1-protocol.h"
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#define TEARING_CONTROL_MANAGER_VERSION 1
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static const struct wp_tearing_control_manager_v1_interface tearing_impl;
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static const struct wp_tearing_control_v1_interface tearing_control_impl;
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static struct wlr_tearing_control_manager_v1 *tearing_manager_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &wp_tearing_control_manager_v1_interface,
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&tearing_impl));
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return wl_resource_get_user_data(resource);
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}
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static struct wlr_tearing_control_v1 *tearing_surface_hint_from_resource(
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struct wl_resource *resource) {
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assert(wl_resource_instance_of(resource, &wp_tearing_control_v1_interface,
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&tearing_control_impl));
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return wl_resource_get_user_data(resource);
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}
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static void destroy_tearing_hint(struct wlr_tearing_control_v1 *hint) {
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if (hint == NULL) {
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return;
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}
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wl_signal_emit_mutable(&hint->events.destroy, NULL);
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wl_list_remove(&hint->link);
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wl_resource_set_user_data(hint->resource, NULL);
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wlr_addon_finish(&hint->addon);
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free(hint);
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}
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static void surface_addon_destroy(struct wlr_addon *addon) {
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struct wlr_tearing_control_v1 *hint = wl_container_of(addon, hint, addon);
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destroy_tearing_hint(hint);
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}
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static const struct wlr_addon_interface surface_addon_impl = {
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.name = "wp_tearing_control_v1",
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.destroy = surface_addon_destroy,
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};
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static void resource_handle_destroy(struct wl_client *client,
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struct wl_resource *resource) {
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wl_resource_destroy(resource);
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}
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static void destroy_tearing_resource_impl(struct wl_resource *resource) {
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struct wlr_tearing_control_v1 *hint = tearing_surface_hint_from_resource(resource);
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destroy_tearing_hint(hint);
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}
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static void tearing_control_handle_presentation_hint(struct wl_client *client,
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struct wl_resource *resource, uint32_t hint) {
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struct wlr_tearing_control_v1 *surface_hint =
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tearing_surface_hint_from_resource(resource);
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surface_hint->hint = hint;
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wl_signal_emit_mutable(&surface_hint->events.set_hint, NULL);
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}
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static const struct wp_tearing_control_v1_interface tearing_control_impl = {
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.destroy = resource_handle_destroy,
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.set_presentation_hint = tearing_control_handle_presentation_hint
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};
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static void tearing_control_manager_handle_get_tearing_control(
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struct wl_client *client, struct wl_resource *resource, uint32_t id,
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struct wl_resource *surface_resource) {
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struct wlr_tearing_control_manager_v1 *manager = tearing_manager_from_resource(resource);
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struct wlr_surface *surface = wlr_surface_from_resource(surface_resource);
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if (wlr_addon_find(&surface->addons, manager, &surface_addon_impl) != NULL) {
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wl_resource_post_error(resource,
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WP_TEARING_CONTROL_MANAGER_V1_ERROR_TEARING_CONTROL_EXISTS,
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"Tearing control object already exists!");
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return;
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}
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struct wlr_tearing_control_v1 *hint = calloc(1, sizeof(struct wlr_tearing_control_v1));
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if (!hint) {
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wl_client_post_no_memory(client);
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return;
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}
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struct wl_resource *created_resource =
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wl_resource_create(client, &wp_tearing_control_v1_interface,
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wl_resource_get_version(resource), id);
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if (created_resource == NULL) {
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wl_resource_post_no_memory(resource);
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return;
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}
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wl_resource_set_implementation(created_resource, &tearing_control_impl,
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hint, destroy_tearing_resource_impl);
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hint->hint = WP_TEARING_CONTROL_V1_PRESENTATION_HINT_VSYNC;
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hint->client = client;
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hint->resource = created_resource;
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hint->surface = surface;
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wlr_addon_init(&hint->addon, &hint->surface->addons, manager, &surface_addon_impl);
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wl_signal_init(&hint->events.set_hint);
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wl_signal_init(&hint->events.destroy);
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wl_list_insert(&manager->surface_hints, &hint->link);
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wl_signal_emit_mutable(&manager->events.new_object, hint);
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}
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static const struct wp_tearing_control_manager_v1_interface tearing_impl = {
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.destroy = resource_handle_destroy,
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.get_tearing_control = tearing_control_manager_handle_get_tearing_control,
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};
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static void tearing_bind(struct wl_client *wl_client, void *data,
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uint32_t version, uint32_t id) {
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struct wlr_tearing_control_manager_v1 *manager = data;
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struct wl_resource *wl_resource = wl_resource_create(wl_client,
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&wp_tearing_control_manager_v1_interface, version, id);
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if (wl_resource == NULL) {
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wl_client_post_no_memory(wl_client);
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return;
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}
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wl_resource_set_implementation(wl_resource, &tearing_impl, manager, NULL);
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}
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static void handle_display_destroy(struct wl_listener *listener, void *data) {
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struct wlr_tearing_control_manager_v1 *manager =
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wl_container_of(listener, manager, display_destroy);
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wl_signal_emit_mutable(&manager->events.destroy, NULL);
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struct wlr_tearing_control_v1 *hint;
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wl_list_for_each(hint, &manager->surface_hints, link) {
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destroy_tearing_hint(hint);
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}
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wl_list_remove(&manager->display_destroy.link);
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wl_global_destroy(manager->global);
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free(manager);
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}
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struct wlr_tearing_control_manager_v1 *wlr_tearing_control_manager_v1_create(
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struct wl_display *display, uint32_t version) {
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assert(version <= TEARING_CONTROL_MANAGER_VERSION);
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struct wlr_tearing_control_manager_v1 *manager =
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calloc(1, sizeof(struct wlr_tearing_control_manager_v1));
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if (!manager) {
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wlr_log_errno(WLR_ERROR, "Allocation failed");
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return NULL;
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}
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wl_signal_init(&manager->events.new_object);
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wl_signal_init(&manager->events.destroy);
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wl_list_init(&manager->surface_hints);
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manager->display_destroy.notify = handle_display_destroy;
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wl_display_add_destroy_listener(display, &manager->display_destroy);
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manager->global = wl_global_create(display, &wp_tearing_control_manager_v1_interface,
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version, manager, tearing_bind);
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if (manager->global == NULL) {
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wl_list_remove(&manager->display_destroy.link);
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free(manager);
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return NULL;
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}
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return manager;
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}
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enum wp_tearing_control_v1_presentation_hint
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wlr_tearing_control_manager_v1_surface_hint_from_surface(struct wlr_tearing_control_manager_v1 *manager,
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struct wlr_surface *surface) {
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struct wlr_addon *addon =
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wlr_addon_find(&surface->addons, manager, &surface_addon_impl);
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if (addon == NULL) {
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return WP_TEARING_CONTROL_V1_PRESENTATION_HINT_VSYNC;
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}
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struct wlr_tearing_control_v1 *hint = wl_container_of(addon, hint, addon);
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return hint->hint;
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}
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