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https://github.com/hyprwm/wlroots-hyprland.git
synced 2024-11-13 08:55:58 +01:00
scene: add wlr_scene_set_presentation()
This helper automates sending presentation feedback to clients based on the primary output of scene surfaces.
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2 changed files with 56 additions and 0 deletions
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@ -62,6 +62,12 @@ struct wlr_scene {
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struct wlr_scene_node node;
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struct wl_list outputs; // wlr_scene_output.link
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// private state
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// May be NULL
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struct wlr_presentation *presentation;
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struct wl_listener presentation_destroy;
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};
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/** A sub-tree in the scene-graph. */
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@ -201,6 +207,14 @@ struct wlr_scene *wlr_scene_create(void);
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*/
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void wlr_scene_render_output(struct wlr_scene *scene, struct wlr_output *output,
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int lx, int ly, pixman_region32_t *damage);
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/**
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* Handle presentation feedback for all surfaces in the scene, assuming that
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* scene outputs and the scene rendering functions are used.
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*
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* Asserts that a wlr_presentation hasn't already been set for the scene.
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*/
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void wlr_scene_set_presentation(struct wlr_scene *scene,
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struct wlr_presentation *presentation);
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/**
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* Add a node displaying nothing but its children.
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@ -5,6 +5,7 @@
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#include <wlr/render/wlr_renderer.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/types/wlr_output_damage.h>
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#include <wlr/types/wlr_presentation_time.h>
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#include <wlr/types/wlr_scene.h>
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#include <wlr/types/wlr_surface.h>
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#include <wlr/util/log.h>
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@ -101,6 +102,8 @@ void wlr_scene_node_destroy(struct wlr_scene_node *node) {
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wlr_scene_output_destroy(scene_output);
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}
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wl_list_remove(&scene->presentation_destroy.link);
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free(scene);
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break;
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case WLR_SCENE_NODE_TREE:;
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@ -141,6 +144,7 @@ struct wlr_scene *wlr_scene_create(void) {
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}
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scene_node_init(&scene->node, WLR_SCENE_NODE_ROOT, NULL);
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wl_list_init(&scene->outputs);
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wl_list_init(&scene->presentation_destroy.link);
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return scene;
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}
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@ -767,6 +771,9 @@ static void render_texture(struct wlr_output *output,
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struct render_data {
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struct wlr_output *output;
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pixman_region32_t *damage;
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// May be NULL
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struct wlr_presentation *presentation;
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};
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static void render_node_iterator(struct wlr_scene_node *node,
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@ -808,6 +815,11 @@ static void render_node_iterator(struct wlr_scene_node *node,
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render_texture(output, output_damage, texture,
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&src_box, &dst_box, matrix);
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if (data->presentation != NULL && scene_surface->primary_output == output) {
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wlr_presentation_surface_sampled_on_output(data->presentation,
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surface, output);
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}
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break;
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case WLR_SCENE_NODE_RECT:;
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struct wlr_scene_rect *scene_rect = scene_rect_from_node(node);
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@ -867,6 +879,7 @@ void wlr_scene_render_output(struct wlr_scene *scene, struct wlr_output *output,
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struct render_data data = {
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.output = output,
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.damage = damage,
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.presentation = scene->presentation,
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};
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scene_node_for_each_node(&scene->node, -lx, -ly,
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render_node_iterator, &data);
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@ -876,6 +889,23 @@ void wlr_scene_render_output(struct wlr_scene *scene, struct wlr_output *output,
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pixman_region32_fini(&full_region);
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}
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static void scene_handle_presentation_destroy(struct wl_listener *listener,
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void *data) {
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struct wlr_scene *scene =
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wl_container_of(listener, scene, presentation_destroy);
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wl_list_remove(&scene->presentation_destroy.link);
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wl_list_init(&scene->presentation_destroy.link);
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scene->presentation = NULL;
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}
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void wlr_scene_set_presentation(struct wlr_scene *scene,
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struct wlr_presentation *presentation) {
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assert(scene->presentation == NULL);
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scene->presentation = presentation;
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scene->presentation_destroy.notify = scene_handle_presentation_destroy;
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wl_signal_add(&presentation->events.destroy, &scene->presentation_destroy);
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}
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static void scene_output_handle_destroy(struct wlr_addon *addon) {
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struct wlr_scene_output *scene_output =
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wl_container_of(addon, scene_output, addon);
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@ -1028,6 +1058,18 @@ static bool scene_output_scanout(struct wlr_scene_output *scene_output) {
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return false;
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}
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struct wlr_presentation *presentation = scene_output->scene->presentation;
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if (presentation != NULL && node->type == WLR_SCENE_NODE_SURFACE) {
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struct wlr_scene_surface *scene_surface =
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wlr_scene_surface_from_node(node);
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// Since outputs may overlap, we still need to check this even though
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// we know that the surface size matches the size of this output.
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if (scene_surface->primary_output == output) {
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wlr_presentation_surface_sampled_on_output(presentation,
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scene_surface->surface, output);
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}
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}
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return wlr_output_commit(output);
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}
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