1346 lines
38 KiB
C
1346 lines
38 KiB
C
#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wlr/backend.h>
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#include <wlr/render/wlr_renderer.h>
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#include <wlr/types/wlr_compositor.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/util/log.h>
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#include <wlr/util/region.h>
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#include "types/wlr_scene.h"
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#include "util/signal.h"
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#include "util/time.h"
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#define HIGHLIGHT_DAMAGE_FADEOUT_TIME 250
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static struct wlr_scene *scene_root_from_node(struct wlr_scene_node *node) {
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assert(node->type == WLR_SCENE_NODE_ROOT);
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return (struct wlr_scene *)node;
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}
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static struct wlr_scene_rect *scene_rect_from_node(
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struct wlr_scene_node *node) {
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assert(node->type == WLR_SCENE_NODE_RECT);
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return (struct wlr_scene_rect *)node;
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}
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struct wlr_scene_buffer *wlr_scene_buffer_from_node(
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struct wlr_scene_node *node) {
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assert(node->type == WLR_SCENE_NODE_BUFFER);
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return (struct wlr_scene_buffer *)node;
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}
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struct wlr_scene *scene_node_get_root(struct wlr_scene_node *node) {
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while (node->parent != NULL) {
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node = node->parent;
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}
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return scene_root_from_node(node);
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}
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static void scene_node_state_init(struct wlr_scene_node_state *state) {
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memset(state, 0, sizeof(*state));
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wl_list_init(&state->children);
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wl_list_init(&state->link);
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state->enabled = true;
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}
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static void scene_node_state_finish(struct wlr_scene_node_state *state) {
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wl_list_remove(&state->link);
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}
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static void scene_node_init(struct wlr_scene_node *node,
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enum wlr_scene_node_type type, struct wlr_scene_node *parent) {
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assert(type == WLR_SCENE_NODE_ROOT || parent != NULL);
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memset(node, 0, sizeof(*node));
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node->type = type;
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node->parent = parent;
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scene_node_state_init(&node->state);
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wl_signal_init(&node->events.destroy);
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if (parent != NULL) {
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wl_list_insert(parent->state.children.prev, &node->state.link);
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}
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wlr_addon_set_init(&node->addons);
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}
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static void scene_node_damage_whole(struct wlr_scene_node *node);
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struct highlight_region {
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pixman_region32_t region;
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struct timespec when;
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struct wl_list link;
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};
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static void highlight_region_destroy(struct highlight_region *damage) {
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wl_list_remove(&damage->link);
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pixman_region32_fini(&damage->region);
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free(damage);
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}
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void wlr_scene_node_destroy(struct wlr_scene_node *node) {
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if (node == NULL) {
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return;
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}
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scene_node_damage_whole(node);
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// We want to call the destroy listeners before we do anything else
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// in case the destroy signal would like to remove children before they
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// are recursively destroyed.
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wlr_signal_emit_safe(&node->events.destroy, NULL);
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struct wlr_scene *scene = scene_node_get_root(node);
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struct wlr_scene_output *scene_output;
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switch (node->type) {
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case WLR_SCENE_NODE_ROOT:;
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struct wlr_scene_output *scene_output_tmp;
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wl_list_for_each_safe(scene_output, scene_output_tmp, &scene->outputs, link) {
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wlr_scene_output_destroy(scene_output);
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}
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struct highlight_region *damage, *tmp_damage;
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wl_list_for_each_safe(damage, tmp_damage, &scene->damage_highlight_regions, link) {
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highlight_region_destroy(damage);
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}
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wl_list_remove(&scene->presentation_destroy.link);
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break;
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case WLR_SCENE_NODE_BUFFER:;
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struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
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uint64_t active = scene_buffer->active_outputs;
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if (active) {
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wl_list_for_each(scene_output, &scene->outputs, link) {
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if (active & (1ull << scene_output->index)) {
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wlr_signal_emit_safe(&scene_buffer->events.output_leave,
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scene_output);
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}
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}
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}
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wlr_texture_destroy(scene_buffer->texture);
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wlr_buffer_unlock(scene_buffer->buffer);
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break;
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case WLR_SCENE_NODE_TREE:
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case WLR_SCENE_NODE_RECT:
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break;
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}
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struct wlr_scene_node *child, *child_tmp;
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wl_list_for_each_safe(child, child_tmp,
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&node->state.children, state.link) {
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wlr_scene_node_destroy(child);
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}
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wlr_addon_set_finish(&node->addons);
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scene_node_state_finish(&node->state);
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free(node);
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}
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struct wlr_scene *wlr_scene_create(void) {
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struct wlr_scene *scene = calloc(1, sizeof(struct wlr_scene));
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if (scene == NULL) {
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return NULL;
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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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wl_list_init(&scene->damage_highlight_regions);
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char *debug_damage = getenv("WLR_SCENE_DEBUG_DAMAGE");
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if (debug_damage) {
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wlr_log(WLR_INFO, "Loading WLR_SCENE_DEBUG_DAMAGE option: %s", debug_damage);
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}
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if (!debug_damage || strcmp(debug_damage, "none") == 0) {
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scene->debug_damage_option = WLR_SCENE_DEBUG_DAMAGE_NONE;
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} else if (strcmp(debug_damage, "rerender") == 0) {
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scene->debug_damage_option = WLR_SCENE_DEBUG_DAMAGE_RERENDER;
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} else if (strcmp(debug_damage, "highlight") == 0) {
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scene->debug_damage_option = WLR_SCENE_DEBUG_DAMAGE_HIGHLIGHT;
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} else {
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wlr_log(WLR_ERROR, "Unknown WLR_SCENE_DEBUG_DAMAGE option: %s", debug_damage);
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scene->debug_damage_option = WLR_SCENE_DEBUG_DAMAGE_NONE;
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}
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return scene;
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}
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struct wlr_scene_tree *wlr_scene_tree_create(struct wlr_scene_node *parent) {
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struct wlr_scene_tree *tree = calloc(1, sizeof(struct wlr_scene_tree));
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if (tree == NULL) {
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return NULL;
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}
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scene_node_init(&tree->node, WLR_SCENE_NODE_TREE, parent);
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return tree;
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}
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static void scene_node_get_size(struct wlr_scene_node *node, int *lx, int *ly);
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// This function must be called whenever the coordinates/dimensions of a scene
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// buffer or scene output change. It is not necessary to call when a scene
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// buffer's node is enabled/disabled or obscured by other nodes.
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static void scene_buffer_update_outputs(
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struct wlr_scene_buffer *scene_buffer,
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int lx, int ly, struct wlr_scene *scene) {
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struct wlr_box buffer_box = { .x = lx, .y = ly };
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scene_node_get_size(&scene_buffer->node, &buffer_box.width, &buffer_box.height);
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int largest_overlap = 0;
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scene_buffer->primary_output = NULL;
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struct wlr_scene_output *scene_output;
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wl_list_for_each(scene_output, &scene->outputs, link) {
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struct wlr_box output_box = {
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.x = scene_output->x,
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.y = scene_output->y,
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};
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wlr_output_effective_resolution(scene_output->output,
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&output_box.width, &output_box.height);
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struct wlr_box intersection;
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bool intersects = wlr_box_intersection(&intersection, &buffer_box, &output_box);
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bool intersects_before = scene_buffer->active_outputs & (1ull << scene_output->index);
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if (intersects) {
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int overlap = intersection.width * intersection.height;
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if (overlap > largest_overlap) {
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largest_overlap = overlap;
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scene_buffer->primary_output = scene_output;
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}
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}
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if (intersects && !intersects_before) {
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scene_buffer->active_outputs |= 1ull << scene_output->index;
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wlr_signal_emit_safe(&scene_buffer->events.output_enter, scene_output);
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} else if (!intersects && intersects_before) {
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scene_buffer->active_outputs &= ~(1ull << scene_output->index);
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wlr_signal_emit_safe(&scene_buffer->events.output_leave, scene_output);
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}
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}
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}
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static void _scene_node_update_outputs(
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struct wlr_scene_node *node, int lx, int ly, struct wlr_scene *scene) {
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if (node->type == WLR_SCENE_NODE_BUFFER) {
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struct wlr_scene_buffer *scene_buffer =
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wlr_scene_buffer_from_node(node);
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scene_buffer_update_outputs(scene_buffer, lx, ly, scene);
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}
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struct wlr_scene_node *child;
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wl_list_for_each(child, &node->state.children, state.link) {
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_scene_node_update_outputs(child, lx + child->state.x,
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ly + child->state.y, scene);
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}
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}
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static void scene_node_update_outputs(struct wlr_scene_node *node) {
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struct wlr_scene *scene = scene_node_get_root(node);
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int lx, ly;
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wlr_scene_node_coords(node, &lx, &ly);
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_scene_node_update_outputs(node, lx, ly, scene);
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}
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struct wlr_scene_rect *wlr_scene_rect_create(struct wlr_scene_node *parent,
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int width, int height, const float color[static 4]) {
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struct wlr_scene_rect *scene_rect =
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calloc(1, sizeof(struct wlr_scene_rect));
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if (scene_rect == NULL) {
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return NULL;
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}
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scene_node_init(&scene_rect->node, WLR_SCENE_NODE_RECT, parent);
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scene_rect->width = width;
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scene_rect->height = height;
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memcpy(scene_rect->color, color, sizeof(scene_rect->color));
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scene_node_damage_whole(&scene_rect->node);
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return scene_rect;
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}
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void wlr_scene_rect_set_size(struct wlr_scene_rect *rect, int width, int height) {
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if (rect->width == width && rect->height == height) {
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return;
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}
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scene_node_damage_whole(&rect->node);
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rect->width = width;
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rect->height = height;
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scene_node_damage_whole(&rect->node);
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}
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void wlr_scene_rect_set_color(struct wlr_scene_rect *rect, const float color[static 4]) {
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if (memcmp(rect->color, color, sizeof(rect->color)) == 0) {
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return;
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}
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memcpy(rect->color, color, sizeof(rect->color));
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scene_node_damage_whole(&rect->node);
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}
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struct wlr_scene_buffer *wlr_scene_buffer_create(struct wlr_scene_node *parent,
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struct wlr_buffer *buffer) {
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struct wlr_scene_buffer *scene_buffer = calloc(1, sizeof(*scene_buffer));
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if (scene_buffer == NULL) {
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return NULL;
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}
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scene_node_init(&scene_buffer->node, WLR_SCENE_NODE_BUFFER, parent);
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if (buffer) {
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scene_buffer->buffer = wlr_buffer_lock(buffer);
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}
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wl_signal_init(&scene_buffer->events.output_enter);
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wl_signal_init(&scene_buffer->events.output_leave);
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wl_signal_init(&scene_buffer->events.output_present);
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wl_signal_init(&scene_buffer->events.frame_done);
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scene_node_damage_whole(&scene_buffer->node);
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scene_node_update_outputs(&scene_buffer->node);
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return scene_buffer;
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}
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void wlr_scene_buffer_set_buffer_with_damage(struct wlr_scene_buffer *scene_buffer,
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struct wlr_buffer *buffer, pixman_region32_t *damage) {
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// specifying a region for a NULL buffer doesn't make sense. We need to know
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// about the buffer to scale the buffer local coordinates down to scene
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// coordinates.
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assert(buffer || !damage);
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if (buffer != scene_buffer->buffer) {
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if (!damage) {
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scene_node_damage_whole(&scene_buffer->node);
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}
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wlr_texture_destroy(scene_buffer->texture);
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scene_buffer->texture = NULL;
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wlr_buffer_unlock(scene_buffer->buffer);
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if (buffer) {
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scene_buffer->buffer = wlr_buffer_lock(buffer);
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} else {
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scene_buffer->buffer = NULL;
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}
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scene_node_update_outputs(&scene_buffer->node);
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if (!damage) {
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scene_node_damage_whole(&scene_buffer->node);
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}
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}
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if (!damage) {
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return;
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}
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int lx, ly;
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if (!wlr_scene_node_coords(&scene_buffer->node, &lx, &ly)) {
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return;
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}
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struct wlr_fbox box = scene_buffer->src_box;
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if (wlr_fbox_empty(&box)) {
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box.x = 0;
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box.y = 0;
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if (scene_buffer->transform & WL_OUTPUT_TRANSFORM_90) {
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box.width = buffer->height;
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box.height = buffer->width;
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} else {
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box.width = buffer->width;
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box.height = buffer->height;
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}
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}
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double scale_x, scale_y;
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if (scene_buffer->dst_width || scene_buffer->dst_height) {
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scale_x = scene_buffer->dst_width / box.width;
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scale_y = scene_buffer->dst_height / box.height;
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} else {
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scale_x = buffer->width / box.width;
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scale_y = buffer->height / box.height;
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}
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pixman_region32_t trans_damage;
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pixman_region32_init(&trans_damage);
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wlr_region_transform(&trans_damage, damage,
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scene_buffer->transform, buffer->width, buffer->height);
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pixman_region32_intersect_rect(&trans_damage, &trans_damage,
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box.x, box.y, box.width, box.height);
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struct wlr_scene *scene = scene_node_get_root(&scene_buffer->node);
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struct wlr_scene_output *scene_output;
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wl_list_for_each(scene_output, &scene->outputs, link) {
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float output_scale = scene_output->output->scale;
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pixman_region32_t output_damage;
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pixman_region32_init(&output_damage);
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wlr_region_scale_xy(&output_damage, &trans_damage,
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output_scale * scale_x, output_scale * scale_y);
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pixman_region32_translate(&output_damage,
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(lx - scene_output->x) * output_scale, (ly - scene_output->y) * output_scale);
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wlr_output_damage_add(scene_output->damage, &output_damage);
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pixman_region32_fini(&output_damage);
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}
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pixman_region32_fini(&trans_damage);
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}
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void wlr_scene_buffer_set_buffer(struct wlr_scene_buffer *scene_buffer,
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struct wlr_buffer *buffer) {
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wlr_scene_buffer_set_buffer_with_damage(scene_buffer, buffer, NULL);
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}
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void wlr_scene_buffer_set_source_box(struct wlr_scene_buffer *scene_buffer,
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const struct wlr_fbox *box) {
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struct wlr_fbox *cur = &scene_buffer->src_box;
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if ((wlr_fbox_empty(box) && wlr_fbox_empty(cur)) ||
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(box != NULL && memcmp(cur, box, sizeof(*box)) == 0)) {
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return;
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}
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if (box != NULL) {
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memcpy(cur, box, sizeof(*box));
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} else {
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memset(cur, 0, sizeof(*cur));
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}
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scene_node_damage_whole(&scene_buffer->node);
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}
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void wlr_scene_buffer_set_dest_size(struct wlr_scene_buffer *scene_buffer,
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int width, int height) {
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if (scene_buffer->dst_width == width && scene_buffer->dst_height == height) {
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return;
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}
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scene_node_damage_whole(&scene_buffer->node);
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scene_buffer->dst_width = width;
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scene_buffer->dst_height = height;
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scene_node_damage_whole(&scene_buffer->node);
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scene_node_update_outputs(&scene_buffer->node);
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}
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void wlr_scene_buffer_set_transform(struct wlr_scene_buffer *scene_buffer,
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enum wl_output_transform transform) {
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if (scene_buffer->transform == transform) {
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return;
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}
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scene_node_damage_whole(&scene_buffer->node);
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scene_buffer->transform = transform;
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scene_node_damage_whole(&scene_buffer->node);
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scene_node_update_outputs(&scene_buffer->node);
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}
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void wlr_scene_buffer_send_frame_done(struct wlr_scene_buffer *scene_buffer,
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struct timespec *now) {
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wlr_signal_emit_safe(&scene_buffer->events.frame_done, now);
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}
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static struct wlr_texture *scene_buffer_get_texture(
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struct wlr_scene_buffer *scene_buffer, struct wlr_renderer *renderer) {
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struct wlr_client_buffer *client_buffer =
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wlr_client_buffer_get(scene_buffer->buffer);
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if (client_buffer != NULL) {
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return client_buffer->texture;
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}
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if (scene_buffer->texture != NULL) {
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return scene_buffer->texture;
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}
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scene_buffer->texture =
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wlr_texture_from_buffer(renderer, scene_buffer->buffer);
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return scene_buffer->texture;
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}
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static void scene_node_get_size(struct wlr_scene_node *node,
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int *width, int *height) {
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*width = 0;
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*height = 0;
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switch (node->type) {
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case WLR_SCENE_NODE_ROOT:
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case WLR_SCENE_NODE_TREE:
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return;
|
|
case WLR_SCENE_NODE_RECT:;
|
|
struct wlr_scene_rect *scene_rect = scene_rect_from_node(node);
|
|
*width = scene_rect->width;
|
|
*height = scene_rect->height;
|
|
break;
|
|
case WLR_SCENE_NODE_BUFFER:;
|
|
struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
|
|
if (scene_buffer->dst_width > 0 && scene_buffer->dst_height > 0) {
|
|
*width = scene_buffer->dst_width;
|
|
*height = scene_buffer->dst_height;
|
|
} else if (scene_buffer->buffer) {
|
|
if (scene_buffer->transform & WL_OUTPUT_TRANSFORM_90) {
|
|
*height = scene_buffer->buffer->width;
|
|
*width = scene_buffer->buffer->height;
|
|
} else {
|
|
*width = scene_buffer->buffer->width;
|
|
*height = scene_buffer->buffer->height;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int scale_length(int length, int offset, float scale) {
|
|
return round((offset + length) * scale) - round(offset * scale);
|
|
}
|
|
|
|
static void scale_box(struct wlr_box *box, float scale) {
|
|
box->width = scale_length(box->width, box->x, scale);
|
|
box->height = scale_length(box->height, box->y, scale);
|
|
box->x = round(box->x * scale);
|
|
box->y = round(box->y * scale);
|
|
}
|
|
|
|
static void _scene_node_damage_whole(struct wlr_scene_node *node,
|
|
struct wlr_scene *scene, int lx, int ly) {
|
|
if (!node->state.enabled) {
|
|
return;
|
|
}
|
|
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each(child, &node->state.children, state.link) {
|
|
_scene_node_damage_whole(child, scene,
|
|
lx + child->state.x, ly + child->state.y);
|
|
}
|
|
|
|
int width, height;
|
|
scene_node_get_size(node, &width, &height);
|
|
|
|
struct wlr_scene_output *scene_output;
|
|
wl_list_for_each(scene_output, &scene->outputs, link) {
|
|
struct wlr_box box = {
|
|
.x = lx - scene_output->x,
|
|
.y = ly - scene_output->y,
|
|
.width = width,
|
|
.height = height,
|
|
};
|
|
|
|
scale_box(&box, scene_output->output->scale);
|
|
|
|
wlr_output_damage_add_box(scene_output->damage, &box);
|
|
}
|
|
}
|
|
|
|
static void scene_node_damage_whole(struct wlr_scene_node *node) {
|
|
struct wlr_scene *scene = scene_node_get_root(node);
|
|
if (wl_list_empty(&scene->outputs)) {
|
|
return;
|
|
}
|
|
|
|
int lx, ly;
|
|
if (!wlr_scene_node_coords(node, &lx, &ly)) {
|
|
return;
|
|
}
|
|
|
|
_scene_node_damage_whole(node, scene, lx, ly);
|
|
}
|
|
|
|
void wlr_scene_node_set_enabled(struct wlr_scene_node *node, bool enabled) {
|
|
if (node->state.enabled == enabled) {
|
|
return;
|
|
}
|
|
|
|
// One of these damage_whole() calls will short-circuit and be a no-op
|
|
scene_node_damage_whole(node);
|
|
node->state.enabled = enabled;
|
|
scene_node_damage_whole(node);
|
|
}
|
|
|
|
void wlr_scene_node_set_position(struct wlr_scene_node *node, int x, int y) {
|
|
if (node->state.x == x && node->state.y == y) {
|
|
return;
|
|
}
|
|
|
|
scene_node_damage_whole(node);
|
|
node->state.x = x;
|
|
node->state.y = y;
|
|
scene_node_damage_whole(node);
|
|
|
|
scene_node_update_outputs(node);
|
|
}
|
|
|
|
void wlr_scene_node_place_above(struct wlr_scene_node *node,
|
|
struct wlr_scene_node *sibling) {
|
|
assert(node != sibling);
|
|
assert(node->parent == sibling->parent);
|
|
|
|
if (node->state.link.prev == &sibling->state.link) {
|
|
return;
|
|
}
|
|
|
|
wl_list_remove(&node->state.link);
|
|
wl_list_insert(&sibling->state.link, &node->state.link);
|
|
|
|
scene_node_damage_whole(node);
|
|
scene_node_damage_whole(sibling);
|
|
}
|
|
|
|
void wlr_scene_node_place_below(struct wlr_scene_node *node,
|
|
struct wlr_scene_node *sibling) {
|
|
assert(node != sibling);
|
|
assert(node->parent == sibling->parent);
|
|
|
|
if (node->state.link.next == &sibling->state.link) {
|
|
return;
|
|
}
|
|
|
|
wl_list_remove(&node->state.link);
|
|
wl_list_insert(sibling->state.link.prev, &node->state.link);
|
|
|
|
scene_node_damage_whole(node);
|
|
scene_node_damage_whole(sibling);
|
|
}
|
|
|
|
void wlr_scene_node_raise_to_top(struct wlr_scene_node *node) {
|
|
struct wlr_scene_node *current_top = wl_container_of(
|
|
node->parent->state.children.prev, current_top, state.link);
|
|
if (node == current_top) {
|
|
return;
|
|
}
|
|
wlr_scene_node_place_above(node, current_top);
|
|
}
|
|
|
|
void wlr_scene_node_lower_to_bottom(struct wlr_scene_node *node) {
|
|
struct wlr_scene_node *current_bottom = wl_container_of(
|
|
node->parent->state.children.next, current_bottom, state.link);
|
|
if (node == current_bottom) {
|
|
return;
|
|
}
|
|
wlr_scene_node_place_below(node, current_bottom);
|
|
}
|
|
|
|
void wlr_scene_node_reparent(struct wlr_scene_node *node,
|
|
struct wlr_scene_node *new_parent) {
|
|
assert(node->type != WLR_SCENE_NODE_ROOT && new_parent != NULL);
|
|
|
|
if (node->parent == new_parent) {
|
|
return;
|
|
}
|
|
|
|
/* Ensure that a node cannot become its own ancestor */
|
|
for (struct wlr_scene_node *ancestor = new_parent; ancestor != NULL;
|
|
ancestor = ancestor->parent) {
|
|
assert(ancestor != node);
|
|
}
|
|
|
|
scene_node_damage_whole(node);
|
|
|
|
wl_list_remove(&node->state.link);
|
|
node->parent = new_parent;
|
|
wl_list_insert(new_parent->state.children.prev, &node->state.link);
|
|
|
|
scene_node_damage_whole(node);
|
|
|
|
scene_node_update_outputs(node);
|
|
}
|
|
|
|
bool wlr_scene_node_coords(struct wlr_scene_node *node,
|
|
int *lx_ptr, int *ly_ptr) {
|
|
int lx = 0, ly = 0;
|
|
bool enabled = true;
|
|
while (node != NULL) {
|
|
lx += node->state.x;
|
|
ly += node->state.y;
|
|
enabled = enabled && node->state.enabled;
|
|
node = node->parent;
|
|
}
|
|
|
|
*lx_ptr = lx;
|
|
*ly_ptr = ly;
|
|
return enabled;
|
|
}
|
|
|
|
static void scene_node_for_each_scene_buffer(struct wlr_scene_node *node,
|
|
int lx, int ly, wlr_scene_buffer_iterator_func_t user_iterator,
|
|
void *user_data) {
|
|
if (!node->state.enabled) {
|
|
return;
|
|
}
|
|
|
|
lx += node->state.x;
|
|
ly += node->state.y;
|
|
|
|
if (node->type == WLR_SCENE_NODE_BUFFER) {
|
|
struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
|
|
user_iterator(scene_buffer, lx, ly, user_data);
|
|
}
|
|
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each(child, &node->state.children, state.link) {
|
|
scene_node_for_each_scene_buffer(child, lx, ly, user_iterator, user_data);
|
|
}
|
|
}
|
|
|
|
void wlr_scene_node_for_each_buffer(struct wlr_scene_node *node,
|
|
wlr_scene_buffer_iterator_func_t user_iterator, void *user_data) {
|
|
scene_node_for_each_scene_buffer(node, 0, 0, user_iterator, user_data);
|
|
}
|
|
|
|
struct wlr_scene_node *wlr_scene_node_at(struct wlr_scene_node *node,
|
|
double lx, double ly, double *nx, double *ny) {
|
|
if (!node->state.enabled) {
|
|
return NULL;
|
|
}
|
|
|
|
// TODO: optimize by storing a bounding box in each node?
|
|
lx -= node->state.x;
|
|
ly -= node->state.y;
|
|
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each_reverse(child, &node->state.children, state.link) {
|
|
struct wlr_scene_node *node =
|
|
wlr_scene_node_at(child, lx, ly, nx, ny);
|
|
if (node != NULL) {
|
|
return node;
|
|
}
|
|
}
|
|
|
|
bool intersects = false;
|
|
switch (node->type) {
|
|
case WLR_SCENE_NODE_ROOT:
|
|
case WLR_SCENE_NODE_TREE:
|
|
break;
|
|
case WLR_SCENE_NODE_RECT:;
|
|
int width, height;
|
|
scene_node_get_size(node, &width, &height);
|
|
intersects = lx >= 0 && lx < width && ly >= 0 && ly < height;
|
|
break;
|
|
case WLR_SCENE_NODE_BUFFER:;
|
|
struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
|
|
|
|
if (scene_buffer->point_accepts_input) {
|
|
intersects = scene_buffer->point_accepts_input(scene_buffer, lx, ly);
|
|
} else {
|
|
int width, height;
|
|
scene_node_get_size(node, &width, &height);
|
|
intersects = lx >= 0 && lx < width && ly >= 0 && ly < height;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (intersects) {
|
|
if (nx != NULL) {
|
|
*nx = lx;
|
|
}
|
|
if (ny != NULL) {
|
|
*ny = ly;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void scissor_output(struct wlr_output *output, pixman_box32_t *rect) {
|
|
struct wlr_renderer *renderer = output->renderer;
|
|
assert(renderer);
|
|
|
|
struct wlr_box box = {
|
|
.x = rect->x1,
|
|
.y = rect->y1,
|
|
.width = rect->x2 - rect->x1,
|
|
.height = rect->y2 - rect->y1,
|
|
};
|
|
|
|
int ow, oh;
|
|
wlr_output_transformed_resolution(output, &ow, &oh);
|
|
|
|
enum wl_output_transform transform =
|
|
wlr_output_transform_invert(output->transform);
|
|
wlr_box_transform(&box, &box, transform, ow, oh);
|
|
|
|
wlr_renderer_scissor(renderer, &box);
|
|
}
|
|
|
|
static void render_rect(struct wlr_output *output,
|
|
pixman_region32_t *output_damage, const float color[static 4],
|
|
const struct wlr_box *box, const float matrix[static 9]) {
|
|
struct wlr_renderer *renderer = output->renderer;
|
|
assert(renderer);
|
|
|
|
pixman_region32_t damage;
|
|
pixman_region32_init(&damage);
|
|
pixman_region32_init_rect(&damage, box->x, box->y, box->width, box->height);
|
|
pixman_region32_intersect(&damage, &damage, output_damage);
|
|
|
|
int nrects;
|
|
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
|
|
for (int i = 0; i < nrects; ++i) {
|
|
scissor_output(output, &rects[i]);
|
|
wlr_render_rect(renderer, box, color, matrix);
|
|
}
|
|
|
|
pixman_region32_fini(&damage);
|
|
}
|
|
|
|
static void render_texture(struct wlr_output *output,
|
|
pixman_region32_t *output_damage, struct wlr_texture *texture,
|
|
const struct wlr_fbox *src_box, const struct wlr_box *dst_box,
|
|
const float matrix[static 9]) {
|
|
struct wlr_renderer *renderer = output->renderer;
|
|
assert(renderer);
|
|
|
|
struct wlr_fbox default_src_box = {0};
|
|
if (wlr_fbox_empty(src_box)) {
|
|
default_src_box.width = texture->width;
|
|
default_src_box.height = texture->height;
|
|
src_box = &default_src_box;
|
|
}
|
|
|
|
pixman_region32_t damage;
|
|
pixman_region32_init(&damage);
|
|
pixman_region32_init_rect(&damage, dst_box->x, dst_box->y,
|
|
dst_box->width, dst_box->height);
|
|
pixman_region32_intersect(&damage, &damage, output_damage);
|
|
|
|
int nrects;
|
|
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
|
|
for (int i = 0; i < nrects; ++i) {
|
|
scissor_output(output, &rects[i]);
|
|
wlr_render_subtexture_with_matrix(renderer, texture, src_box, matrix, 1.0);
|
|
}
|
|
|
|
pixman_region32_fini(&damage);
|
|
}
|
|
|
|
struct render_data {
|
|
struct wlr_scene_output *scene_output;
|
|
pixman_region32_t *damage;
|
|
};
|
|
|
|
static void render_node_iterator(struct wlr_scene_node *node,
|
|
int x, int y, void *_data) {
|
|
struct render_data *data = _data;
|
|
struct wlr_scene_output *scene_output = data->scene_output;
|
|
struct wlr_output *output = scene_output->output;
|
|
pixman_region32_t *output_damage = data->damage;
|
|
|
|
struct wlr_box dst_box = {
|
|
.x = x,
|
|
.y = y,
|
|
};
|
|
scene_node_get_size(node, &dst_box.width, &dst_box.height);
|
|
scale_box(&dst_box, output->scale);
|
|
|
|
struct wlr_texture *texture;
|
|
float matrix[9];
|
|
enum wl_output_transform transform;
|
|
switch (node->type) {
|
|
case WLR_SCENE_NODE_ROOT:
|
|
case WLR_SCENE_NODE_TREE:
|
|
/* Root or tree node has nothing to render itself */
|
|
break;
|
|
case WLR_SCENE_NODE_RECT:;
|
|
struct wlr_scene_rect *scene_rect = scene_rect_from_node(node);
|
|
|
|
render_rect(output, output_damage, scene_rect->color, &dst_box,
|
|
output->transform_matrix);
|
|
break;
|
|
case WLR_SCENE_NODE_BUFFER:;
|
|
struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
|
|
if (!scene_buffer->buffer) {
|
|
return;
|
|
}
|
|
|
|
struct wlr_renderer *renderer = output->renderer;
|
|
texture = scene_buffer_get_texture(scene_buffer, renderer);
|
|
if (texture == NULL) {
|
|
return;
|
|
}
|
|
|
|
transform = wlr_output_transform_invert(scene_buffer->transform);
|
|
wlr_matrix_project_box(matrix, &dst_box, transform, 0.0,
|
|
output->transform_matrix);
|
|
|
|
render_texture(output, output_damage, texture, &scene_buffer->src_box,
|
|
&dst_box, matrix);
|
|
|
|
wlr_signal_emit_safe(&scene_buffer->events.output_present, scene_output);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void scene_node_for_each_node(struct wlr_scene_node *node,
|
|
int lx, int ly, wlr_scene_node_iterator_func_t user_iterator,
|
|
void *user_data) {
|
|
if (!node->state.enabled) {
|
|
return;
|
|
}
|
|
|
|
lx += node->state.x;
|
|
ly += node->state.y;
|
|
|
|
user_iterator(node, lx, ly, user_data);
|
|
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each(child, &node->state.children, state.link) {
|
|
scene_node_for_each_node(child, lx, ly, user_iterator, user_data);
|
|
}
|
|
}
|
|
|
|
static void scene_handle_presentation_destroy(struct wl_listener *listener,
|
|
void *data) {
|
|
struct wlr_scene *scene =
|
|
wl_container_of(listener, scene, presentation_destroy);
|
|
wl_list_remove(&scene->presentation_destroy.link);
|
|
wl_list_init(&scene->presentation_destroy.link);
|
|
scene->presentation = NULL;
|
|
}
|
|
|
|
void wlr_scene_set_presentation(struct wlr_scene *scene,
|
|
struct wlr_presentation *presentation) {
|
|
assert(scene->presentation == NULL);
|
|
scene->presentation = presentation;
|
|
scene->presentation_destroy.notify = scene_handle_presentation_destroy;
|
|
wl_signal_add(&presentation->events.destroy, &scene->presentation_destroy);
|
|
}
|
|
|
|
static void scene_output_handle_destroy(struct wlr_addon *addon) {
|
|
struct wlr_scene_output *scene_output =
|
|
wl_container_of(addon, scene_output, addon);
|
|
wlr_scene_output_destroy(scene_output);
|
|
}
|
|
|
|
static const struct wlr_addon_interface output_addon_impl = {
|
|
.name = "wlr_scene_output",
|
|
.destroy = scene_output_handle_destroy,
|
|
};
|
|
|
|
static void scene_output_handle_commit(struct wl_listener *listener, void *data) {
|
|
struct wlr_scene_output *scene_output = wl_container_of(listener,
|
|
scene_output, output_commit);
|
|
struct wlr_output_event_commit *event = data;
|
|
|
|
if (event->committed & (WLR_OUTPUT_STATE_MODE |
|
|
WLR_OUTPUT_STATE_TRANSFORM |
|
|
WLR_OUTPUT_STATE_SCALE)) {
|
|
scene_node_update_outputs(&scene_output->scene->node);
|
|
}
|
|
}
|
|
|
|
static void scene_output_handle_mode(struct wl_listener *listener, void *data) {
|
|
struct wlr_scene_output *scene_output = wl_container_of(listener,
|
|
scene_output, output_mode);
|
|
scene_node_update_outputs(&scene_output->scene->node);
|
|
}
|
|
|
|
struct wlr_scene_output *wlr_scene_output_create(struct wlr_scene *scene,
|
|
struct wlr_output *output) {
|
|
struct wlr_scene_output *scene_output = calloc(1, sizeof(*scene_output));
|
|
if (scene_output == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
scene_output->damage = wlr_output_damage_create(output);
|
|
if (scene_output->damage == NULL) {
|
|
free(scene_output);
|
|
return NULL;
|
|
}
|
|
|
|
scene_output->output = output;
|
|
scene_output->scene = scene;
|
|
wlr_addon_init(&scene_output->addon, &output->addons, scene, &output_addon_impl);
|
|
|
|
int prev_output_index = -1;
|
|
struct wl_list *prev_output_link = &scene->outputs;
|
|
|
|
struct wlr_scene_output *current_output;
|
|
wl_list_for_each(current_output, &scene->outputs, link) {
|
|
if (prev_output_index + 1 != current_output->index) {
|
|
break;
|
|
}
|
|
|
|
prev_output_index = current_output->index;
|
|
prev_output_link = ¤t_output->link;
|
|
}
|
|
|
|
scene_output->index = prev_output_index + 1;
|
|
assert(scene_output->index < 64);
|
|
wl_list_insert(prev_output_link, &scene_output->link);
|
|
|
|
scene_output->output_commit.notify = scene_output_handle_commit;
|
|
wl_signal_add(&output->events.commit, &scene_output->output_commit);
|
|
|
|
scene_output->output_mode.notify = scene_output_handle_mode;
|
|
wl_signal_add(&output->events.mode, &scene_output->output_mode);
|
|
|
|
wlr_output_damage_add_whole(scene_output->damage);
|
|
scene_node_update_outputs(&scene->node);
|
|
|
|
return scene_output;
|
|
}
|
|
|
|
static void scene_node_remove_output(struct wlr_scene_node *node,
|
|
struct wlr_scene_output *output) {
|
|
if (node->type == WLR_SCENE_NODE_BUFFER) {
|
|
struct wlr_scene_buffer *scene_buffer =
|
|
wlr_scene_buffer_from_node(node);
|
|
uint64_t mask = 1ull << output->index;
|
|
if (scene_buffer->active_outputs & mask) {
|
|
scene_buffer->active_outputs &= ~mask;
|
|
wlr_signal_emit_safe(&scene_buffer->events.output_leave, output);
|
|
}
|
|
}
|
|
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each(child, &node->state.children, state.link) {
|
|
scene_node_remove_output(child, output);
|
|
}
|
|
}
|
|
|
|
void wlr_scene_output_destroy(struct wlr_scene_output *scene_output) {
|
|
if (scene_output == NULL) {
|
|
return;
|
|
}
|
|
|
|
scene_node_remove_output(&scene_output->scene->node, scene_output);
|
|
|
|
wlr_addon_finish(&scene_output->addon);
|
|
wl_list_remove(&scene_output->link);
|
|
wl_list_remove(&scene_output->output_commit.link);
|
|
wl_list_remove(&scene_output->output_mode.link);
|
|
|
|
free(scene_output);
|
|
}
|
|
|
|
struct wlr_scene_output *wlr_scene_get_scene_output(struct wlr_scene *scene,
|
|
struct wlr_output *output) {
|
|
struct wlr_addon *addon =
|
|
wlr_addon_find(&output->addons, scene, &output_addon_impl);
|
|
if (addon == NULL) {
|
|
return NULL;
|
|
}
|
|
struct wlr_scene_output *scene_output =
|
|
wl_container_of(addon, scene_output, addon);
|
|
return scene_output;
|
|
}
|
|
|
|
void wlr_scene_output_set_position(struct wlr_scene_output *scene_output,
|
|
int lx, int ly) {
|
|
if (scene_output->x == lx && scene_output->y == ly) {
|
|
return;
|
|
}
|
|
|
|
scene_output->x = lx;
|
|
scene_output->y = ly;
|
|
wlr_output_damage_add_whole(scene_output->damage);
|
|
|
|
scene_node_update_outputs(&scene_output->scene->node);
|
|
}
|
|
|
|
struct check_scanout_data {
|
|
// in
|
|
struct wlr_box viewport_box;
|
|
// out
|
|
struct wlr_scene_node *node;
|
|
size_t n;
|
|
};
|
|
|
|
static void check_scanout_iterator(struct wlr_scene_node *node,
|
|
int x, int y, void *_data) {
|
|
struct check_scanout_data *data = _data;
|
|
|
|
struct wlr_box node_box = { .x = x, .y = y };
|
|
scene_node_get_size(node, &node_box.width, &node_box.height);
|
|
|
|
struct wlr_box intersection;
|
|
if (!wlr_box_intersection(&intersection, &data->viewport_box, &node_box)) {
|
|
return;
|
|
}
|
|
|
|
data->n++;
|
|
|
|
if (data->viewport_box.x == node_box.x &&
|
|
data->viewport_box.y == node_box.y &&
|
|
data->viewport_box.width == node_box.width &&
|
|
data->viewport_box.height == node_box.height) {
|
|
data->node = node;
|
|
}
|
|
}
|
|
|
|
static bool scene_output_scanout(struct wlr_scene_output *scene_output) {
|
|
if (scene_output->scene->debug_damage_option ==
|
|
WLR_SCENE_DEBUG_DAMAGE_HIGHLIGHT) {
|
|
// We don't want to enter direct scan out if we have highlight regions
|
|
// enabled. Otherwise, we won't be able to render the damage regions.
|
|
return false;
|
|
}
|
|
|
|
struct wlr_output *output = scene_output->output;
|
|
|
|
struct wlr_box viewport_box = { .x = scene_output->x, .y = scene_output->y };
|
|
wlr_output_effective_resolution(output,
|
|
&viewport_box.width, &viewport_box.height);
|
|
|
|
struct check_scanout_data check_scanout_data = {
|
|
.viewport_box = viewport_box,
|
|
};
|
|
scene_node_for_each_node(&scene_output->scene->node, 0, 0,
|
|
check_scanout_iterator, &check_scanout_data);
|
|
if (check_scanout_data.n != 1 || check_scanout_data.node == NULL) {
|
|
return false;
|
|
}
|
|
|
|
struct wlr_scene_node *node = check_scanout_data.node;
|
|
struct wlr_buffer *buffer;
|
|
switch (node->type) {
|
|
case WLR_SCENE_NODE_BUFFER:;
|
|
struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
|
|
if (scene_buffer->buffer == NULL ||
|
|
!wlr_fbox_empty(&scene_buffer->src_box) ||
|
|
scene_buffer->transform != output->transform) {
|
|
return false;
|
|
}
|
|
buffer = scene_buffer->buffer;
|
|
break;
|
|
default:
|
|
return false;
|
|
}
|
|
|
|
wlr_output_attach_buffer(output, buffer);
|
|
if (!wlr_output_test(output)) {
|
|
wlr_output_rollback(output);
|
|
return false;
|
|
}
|
|
|
|
if (node->type == WLR_SCENE_NODE_BUFFER) {
|
|
struct wlr_scene_buffer *scene_buffer =
|
|
wlr_scene_buffer_from_node(node);
|
|
wlr_signal_emit_safe(&scene_buffer->events.output_present, scene_output);
|
|
}
|
|
|
|
return wlr_output_commit(output);
|
|
}
|
|
|
|
bool wlr_scene_output_commit(struct wlr_scene_output *scene_output) {
|
|
struct wlr_output *output = scene_output->output;
|
|
enum wlr_scene_debug_damage_option debug_damage =
|
|
scene_output->scene->debug_damage_option;
|
|
|
|
struct wlr_renderer *renderer = output->renderer;
|
|
assert(renderer != NULL);
|
|
|
|
bool scanout = scene_output_scanout(scene_output);
|
|
if (scanout != scene_output->prev_scanout) {
|
|
wlr_log(WLR_DEBUG, "Direct scan-out %s",
|
|
scanout ? "enabled" : "disabled");
|
|
// When exiting direct scan-out, damage everything
|
|
wlr_output_damage_add_whole(scene_output->damage);
|
|
}
|
|
scene_output->prev_scanout = scanout;
|
|
if (scanout) {
|
|
return true;
|
|
}
|
|
|
|
if (debug_damage == WLR_SCENE_DEBUG_DAMAGE_RERENDER) {
|
|
wlr_output_damage_add_whole(scene_output->damage);
|
|
}
|
|
|
|
struct timespec now;
|
|
if (debug_damage == WLR_SCENE_DEBUG_DAMAGE_HIGHLIGHT) {
|
|
struct wl_list *regions = &scene_output->scene->damage_highlight_regions;
|
|
clock_gettime(CLOCK_MONOTONIC, &now);
|
|
|
|
// add the current frame's damage if there is damage
|
|
if (pixman_region32_not_empty(&scene_output->damage->current)) {
|
|
struct highlight_region *current_damage =
|
|
calloc(1, sizeof(*current_damage));
|
|
if (current_damage) {
|
|
pixman_region32_init(¤t_damage->region);
|
|
pixman_region32_copy(¤t_damage->region,
|
|
&scene_output->damage->current);
|
|
memcpy(¤t_damage->when, &now, sizeof(now));
|
|
wl_list_insert(regions, ¤t_damage->link);
|
|
}
|
|
}
|
|
|
|
pixman_region32_t acc_damage;
|
|
pixman_region32_init(&acc_damage);
|
|
struct highlight_region *damage, *tmp_damage;
|
|
wl_list_for_each_safe(damage, tmp_damage, regions, link) {
|
|
// remove overlaping damage regions
|
|
pixman_region32_subtract(&damage->region, &damage->region, &acc_damage);
|
|
pixman_region32_union(&acc_damage, &acc_damage, &damage->region);
|
|
|
|
// if this damage is too old or has nothing in it, get rid of it
|
|
struct timespec time_diff;
|
|
timespec_sub(&time_diff, &now, &damage->when);
|
|
if (timespec_to_msec(&time_diff) >= HIGHLIGHT_DAMAGE_FADEOUT_TIME ||
|
|
!pixman_region32_not_empty(&damage->region)) {
|
|
highlight_region_destroy(damage);
|
|
}
|
|
}
|
|
|
|
wlr_output_damage_add(scene_output->damage, &acc_damage);
|
|
pixman_region32_fini(&acc_damage);
|
|
}
|
|
|
|
bool needs_frame;
|
|
pixman_region32_t damage;
|
|
pixman_region32_init(&damage);
|
|
if (!wlr_output_damage_attach_render(scene_output->damage,
|
|
&needs_frame, &damage)) {
|
|
pixman_region32_fini(&damage);
|
|
return false;
|
|
}
|
|
|
|
if (!needs_frame) {
|
|
pixman_region32_fini(&damage);
|
|
wlr_output_rollback(output);
|
|
return true;
|
|
}
|
|
|
|
wlr_renderer_begin(renderer, output->width, output->height);
|
|
|
|
int nrects;
|
|
pixman_box32_t *rects = pixman_region32_rectangles(&damage, &nrects);
|
|
for (int i = 0; i < nrects; ++i) {
|
|
scissor_output(output, &rects[i]);
|
|
wlr_renderer_clear(renderer, (float[4]){ 0.0, 0.0, 0.0, 1.0 });
|
|
}
|
|
|
|
struct render_data data = {
|
|
.scene_output = scene_output,
|
|
.damage = &damage,
|
|
};
|
|
scene_node_for_each_node(&scene_output->scene->node,
|
|
-scene_output->x, -scene_output->y,
|
|
render_node_iterator, &data);
|
|
wlr_renderer_scissor(renderer, NULL);
|
|
|
|
if (debug_damage == WLR_SCENE_DEBUG_DAMAGE_HIGHLIGHT) {
|
|
struct highlight_region *damage;
|
|
wl_list_for_each(damage, &scene_output->scene->damage_highlight_regions, link) {
|
|
struct timespec time_diff;
|
|
timespec_sub(&time_diff, &now, &damage->when);
|
|
int64_t time_diff_ms = timespec_to_msec(&time_diff);
|
|
float alpha = 1.0 - (double)time_diff_ms / HIGHLIGHT_DAMAGE_FADEOUT_TIME;
|
|
|
|
int nrects;
|
|
pixman_box32_t *rects = pixman_region32_rectangles(&damage->region, &nrects);
|
|
for (int i = 0; i < nrects; ++i) {
|
|
struct wlr_box box = {
|
|
.x = rects[i].x1,
|
|
.y = rects[i].y1,
|
|
.width = rects[i].x2 - rects[i].x1,
|
|
.height = rects[i].y2 - rects[i].y1,
|
|
};
|
|
|
|
float color[4] = { alpha * .5, 0.0, 0.0, alpha * .5 };
|
|
wlr_render_rect(renderer, &box, color, output->transform_matrix);
|
|
}
|
|
}
|
|
}
|
|
|
|
wlr_output_render_software_cursors(output, &damage);
|
|
|
|
wlr_renderer_end(renderer);
|
|
pixman_region32_fini(&damage);
|
|
|
|
int tr_width, tr_height;
|
|
wlr_output_transformed_resolution(output, &tr_width, &tr_height);
|
|
|
|
enum wl_output_transform transform =
|
|
wlr_output_transform_invert(output->transform);
|
|
|
|
pixman_region32_t frame_damage;
|
|
pixman_region32_init(&frame_damage);
|
|
wlr_region_transform(&frame_damage, &scene_output->damage->current,
|
|
transform, tr_width, tr_height);
|
|
wlr_output_set_damage(output, &frame_damage);
|
|
pixman_region32_fini(&frame_damage);
|
|
|
|
bool success = wlr_output_commit(output);
|
|
|
|
if (debug_damage == WLR_SCENE_DEBUG_DAMAGE_HIGHLIGHT &&
|
|
!wl_list_empty(&scene_output->scene->damage_highlight_regions)) {
|
|
wlr_output_schedule_frame(scene_output->output);
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
static void scene_node_send_frame_done(struct wlr_scene_node *node,
|
|
struct wlr_scene_output *scene_output, struct timespec *now) {
|
|
if (!node->state.enabled) {
|
|
return;
|
|
}
|
|
|
|
if (node->type == WLR_SCENE_NODE_BUFFER) {
|
|
struct wlr_scene_buffer *scene_buffer =
|
|
wlr_scene_buffer_from_node(node);
|
|
|
|
if (scene_buffer->primary_output == scene_output) {
|
|
wlr_scene_buffer_send_frame_done(scene_buffer, now);
|
|
}
|
|
}
|
|
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each(child, &node->state.children, state.link) {
|
|
scene_node_send_frame_done(child, scene_output, now);
|
|
}
|
|
}
|
|
|
|
void wlr_scene_output_send_frame_done(struct wlr_scene_output *scene_output,
|
|
struct timespec *now) {
|
|
scene_node_send_frame_done(&scene_output->scene->node,
|
|
scene_output, now);
|
|
}
|
|
|
|
static void scene_output_for_each_scene_buffer(const struct wlr_box *output_box,
|
|
struct wlr_scene_node *node, int lx, int ly,
|
|
wlr_scene_buffer_iterator_func_t user_iterator, void *user_data) {
|
|
if (!node->state.enabled) {
|
|
return;
|
|
}
|
|
|
|
lx += node->state.x;
|
|
ly += node->state.y;
|
|
|
|
if (node->type == WLR_SCENE_NODE_BUFFER) {
|
|
struct wlr_box node_box = { .x = lx, .y = ly };
|
|
scene_node_get_size(node, &node_box.width, &node_box.height);
|
|
|
|
struct wlr_box intersection;
|
|
if (wlr_box_intersection(&intersection, output_box, &node_box)) {
|
|
struct wlr_scene_buffer *scene_buffer =
|
|
wlr_scene_buffer_from_node(node);
|
|
user_iterator(scene_buffer, lx, ly, user_data);
|
|
}
|
|
}
|
|
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each(child, &node->state.children, state.link) {
|
|
scene_output_for_each_scene_buffer(output_box, child, lx, ly,
|
|
user_iterator, user_data);
|
|
}
|
|
}
|
|
|
|
void wlr_scene_output_for_each_buffer(struct wlr_scene_output *scene_output,
|
|
wlr_scene_buffer_iterator_func_t iterator, void *user_data) {
|
|
struct wlr_box box = { .x = scene_output->x, .y = scene_output->y };
|
|
wlr_output_effective_resolution(scene_output->output,
|
|
&box.width, &box.height);
|
|
scene_output_for_each_scene_buffer(&box, &scene_output->scene->node, 0, 0,
|
|
iterator, user_data);
|
|
}
|