1691 lines
49 KiB
C
1691 lines
49 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_damage_ring.h>
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#include <wlr/types/wlr_matrix.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_buffer.h"
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#include "types/wlr_scene.h"
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#include "util/array.h"
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#include "util/env.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_tree *scene_tree_from_node(struct wlr_scene_node *node) {
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assert(node->type == WLR_SCENE_NODE_TREE);
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return (struct wlr_scene_tree *)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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struct wlr_scene_tree *tree;
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if (node->type == WLR_SCENE_NODE_TREE) {
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tree = scene_tree_from_node(node);
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} else {
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tree = node->parent;
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}
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while (tree->node.parent != NULL) {
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tree = tree->node.parent;
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}
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return (struct wlr_scene *)tree;
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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_tree *parent) {
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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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node->enabled = true;
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wl_list_init(&node->link);
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wl_signal_init(&node->events.destroy);
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pixman_region32_init(&node->visible);
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if (parent != NULL) {
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wl_list_insert(parent->children.prev, &node->link);
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}
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wlr_addon_set_init(&node->addons);
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}
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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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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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// 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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wl_signal_emit_mutable(&node->events.destroy, NULL);
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wlr_scene_node_set_enabled(node, false);
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struct wlr_scene *scene = scene_node_get_root(node);
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if (node->type == 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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struct wlr_scene_output *scene_output;
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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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wl_signal_emit_mutable(&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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pixman_region32_fini(&scene_buffer->opaque_region);
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} else if (node->type == WLR_SCENE_NODE_TREE) {
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struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
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if (scene_tree == &scene->tree) {
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assert(!node->parent);
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struct wlr_scene_output *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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wl_list_remove(&scene->presentation_destroy.link);
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} else {
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assert(node->parent);
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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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&scene_tree->children, link) {
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wlr_scene_node_destroy(child);
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}
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}
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wlr_addon_set_finish(&node->addons);
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wl_list_remove(&node->link);
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pixman_region32_fini(&node->visible);
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free(node);
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}
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static void scene_tree_init(struct wlr_scene_tree *tree,
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struct wlr_scene_tree *parent) {
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memset(tree, 0, sizeof(*tree));
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scene_node_init(&tree->node, WLR_SCENE_NODE_TREE, parent);
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wl_list_init(&tree->children);
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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_tree_init(&scene->tree, 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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const char *debug_damage_options[] = {
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"none",
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"rerender",
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"highlight",
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NULL
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};
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scene->debug_damage_option = env_parse_switch("WLR_SCENE_DEBUG_DAMAGE", debug_damage_options);
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scene->direct_scanout = !env_parse_bool("WLR_SCENE_DISABLE_DIRECT_SCANOUT");
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scene->calculate_visibility = !env_parse_bool("WLR_SCENE_DISABLE_VISIBILITY");
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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_tree *parent) {
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assert(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_tree_init(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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typedef bool (*scene_node_box_iterator_func_t)(struct wlr_scene_node *node,
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int sx, int sy, void *data);
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static bool _scene_nodes_in_box(struct wlr_scene_node *node, struct wlr_box *box,
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scene_node_box_iterator_func_t iterator, void *user_data, int lx, int ly) {
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if (!node->enabled) {
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return false;
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}
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switch (node->type) {
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case WLR_SCENE_NODE_TREE:;
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struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
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struct wlr_scene_node *child;
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wl_list_for_each_reverse(child, &scene_tree->children, link) {
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if (_scene_nodes_in_box(child, box, iterator, user_data, lx + child->x, ly + child->y)) {
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return true;
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}
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}
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break;
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case WLR_SCENE_NODE_RECT:
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case WLR_SCENE_NODE_BUFFER:;
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struct wlr_box node_box = { .x = lx, .y = ly };
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scene_node_get_size(node, &node_box.width, &node_box.height);
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if (wlr_box_intersection(&node_box, &node_box, box) &&
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iterator(node, lx, ly, user_data)) {
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return true;
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}
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break;
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}
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return false;
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}
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static bool scene_nodes_in_box(struct wlr_scene_node *node, struct wlr_box *box,
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scene_node_box_iterator_func_t iterator, void *user_data) {
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int x, y;
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wlr_scene_node_coords(node, &x, &y);
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return _scene_nodes_in_box(node, box, iterator, user_data, x, y);
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}
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static void scene_node_opaque_region(struct wlr_scene_node *node, int x, int y,
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pixman_region32_t *opaque) {
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if (node->type == WLR_SCENE_NODE_RECT) {
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struct wlr_scene_rect *scene_rect = scene_rect_from_node(node);
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if (scene_rect->color[3] != 1) {
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return;
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}
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} else if (node->type == WLR_SCENE_NODE_BUFFER) {
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struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
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if (!scene_buffer->buffer) {
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return;
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}
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if (!buffer_is_opaque(scene_buffer->buffer)) {
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pixman_region32_copy(opaque, &scene_buffer->opaque_region);
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pixman_region32_translate(opaque, x, y);
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return;
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}
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}
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int width, height;
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scene_node_get_size(node, &width, &height);
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pixman_region32_fini(opaque);
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pixman_region32_init_rect(opaque, x, y, width, height);
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}
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struct scene_update_data {
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pixman_region32_t *visible;
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pixman_region32_t *update_region;
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struct wl_list *outputs;
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bool calculate_visibility;
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};
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static uint32_t region_area(pixman_region32_t *region) {
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uint32_t area = 0;
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int nrects;
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pixman_box32_t *rects = pixman_region32_rectangles(region, &nrects);
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for (int i = 0; i < nrects; ++i) {
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area += (rects[i].x2 - rects[i].x1) * (rects[i].y2 - rects[i].y1);
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}
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return area;
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}
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static void scene_damage_outputs(struct wlr_scene *scene, pixman_region32_t *damage) {
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if (!pixman_region32_not_empty(damage)) {
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return;
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}
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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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pixman_region32_t output_damage;
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pixman_region32_init(&output_damage);
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pixman_region32_copy(&output_damage, damage);
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pixman_region32_translate(&output_damage,
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-scene_output->x, -scene_output->y);
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wlr_region_scale(&output_damage, &output_damage,
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scene_output->output->scale);
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if (wlr_damage_ring_add(&scene_output->damage_ring, &output_damage)) {
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wlr_output_schedule_frame(scene_output->output);
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}
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pixman_region32_fini(&output_damage);
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}
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}
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static void update_node_update_outputs(struct wlr_scene_node *node,
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struct wl_list *outputs, struct wlr_scene_output *ignore) {
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if (node->type != WLR_SCENE_NODE_BUFFER) {
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return;
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}
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struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
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uint32_t largest_overlap = 0;
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scene_buffer->primary_output = NULL;
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uint64_t active_outputs = 0;
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// let's update the outputs in two steps:
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// - the primary outputs
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// - the enter/leave signals
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// This ensures that the enter/leave signals can rely on the primary output
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// to have a reasonable value. Otherwise, they may get a value that's in
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// the middle of a calculation.
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struct wlr_scene_output *scene_output;
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wl_list_for_each(scene_output, outputs, link) {
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if (scene_output == ignore) {
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continue;
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}
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if (!scene_output->output->enabled) {
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continue;
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}
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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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pixman_region32_t intersection;
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pixman_region32_init(&intersection);
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pixman_region32_intersect_rect(&intersection, &node->visible,
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output_box.x, output_box.y, output_box.width, output_box.height);
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if (pixman_region32_not_empty(&intersection)) {
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uint32_t overlap = region_area(&intersection);
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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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active_outputs |= 1ull << scene_output->index;
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}
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pixman_region32_fini(&intersection);
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}
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uint64_t old_active = scene_buffer->active_outputs;
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scene_buffer->active_outputs = active_outputs;
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wl_list_for_each(scene_output, outputs, link) {
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uint64_t mask = 1ull << scene_output->index;
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bool intersects = active_outputs & mask;
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bool intersects_before = old_active & mask;
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if (intersects && !intersects_before) {
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wl_signal_emit_mutable(&scene_buffer->events.output_enter, scene_output);
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} else if (!intersects && intersects_before) {
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wl_signal_emit_mutable(&scene_buffer->events.output_leave, scene_output);
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}
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}
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// if there are active outputs on this node, we should always have a primary
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// output
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assert(!scene_buffer->active_outputs || scene_buffer->primary_output);
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}
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static bool scene_node_update_iterator(struct wlr_scene_node *node,
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int lx, int ly, void *_data) {
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struct scene_update_data *data = _data;
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struct wlr_box box = { .x = lx, .y = ly };
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scene_node_get_size(node, &box.width, &box.height);
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pixman_region32_subtract(&node->visible, &node->visible, data->update_region);
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pixman_region32_union(&node->visible, &node->visible, data->visible);
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pixman_region32_intersect_rect(&node->visible, &node->visible,
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lx, ly, box.width, box.height);
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if (data->calculate_visibility) {
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pixman_region32_t opaque;
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pixman_region32_init(&opaque);
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scene_node_opaque_region(node, lx, ly, &opaque);
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pixman_region32_subtract(data->visible, data->visible, &opaque);
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pixman_region32_fini(&opaque);
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}
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update_node_update_outputs(node, data->outputs, NULL);
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return false;
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}
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static void scene_node_visibility(struct wlr_scene_node *node,
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pixman_region32_t *visible) {
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if (!node->enabled) {
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return;
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}
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if (node->type == WLR_SCENE_NODE_TREE) {
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struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
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struct wlr_scene_node *child;
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wl_list_for_each(child, &scene_tree->children, link) {
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scene_node_visibility(child, visible);
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}
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return;
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}
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pixman_region32_union(visible, visible, &node->visible);
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}
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static void scene_node_bounds(struct wlr_scene_node *node,
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int x, int y, pixman_region32_t *visible) {
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if (!node->enabled) {
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return;
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}
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if (node->type == WLR_SCENE_NODE_TREE) {
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struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
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struct wlr_scene_node *child;
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wl_list_for_each(child, &scene_tree->children, link) {
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scene_node_bounds(child, x + child->x, y + child->y, visible);
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}
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return;
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}
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int width, height;
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scene_node_get_size(node, &width, &height);
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pixman_region32_union_rect(visible, visible, x, y, width, height);
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}
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static void scene_update_region(struct wlr_scene *scene,
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pixman_region32_t *update_region) {
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pixman_region32_t visible;
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pixman_region32_init(&visible);
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pixman_region32_copy(&visible, update_region);
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struct scene_update_data data = {
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.visible = &visible,
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.update_region = update_region,
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.outputs = &scene->outputs,
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.calculate_visibility = scene->calculate_visibility,
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};
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struct pixman_box32 *region_box = pixman_region32_extents(update_region);
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struct wlr_box box = {
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.x = region_box->x1,
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.y = region_box->y1,
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.width = region_box->x2 - region_box->x1,
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.height = region_box->y2 - region_box->y1,
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};
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// update node visibility and output enter/leave events
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scene_nodes_in_box(&scene->tree.node, &box, scene_node_update_iterator, &data);
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pixman_region32_fini(&visible);
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}
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static void scene_node_update(struct wlr_scene_node *node,
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pixman_region32_t *damage) {
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struct wlr_scene *scene = scene_node_get_root(node);
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int x, y;
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if (!wlr_scene_node_coords(node, &x, &y)) {
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if (damage) {
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scene_update_region(scene, damage);
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scene_damage_outputs(scene, damage);
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pixman_region32_fini(damage);
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}
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return;
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}
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pixman_region32_t visible;
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if (!damage) {
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pixman_region32_init(&visible);
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scene_node_visibility(node, &visible);
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damage = &visible;
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}
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pixman_region32_t update_region;
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pixman_region32_init(&update_region);
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pixman_region32_copy(&update_region, damage);
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scene_node_bounds(node, x, y, &update_region);
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scene_update_region(scene, &update_region);
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pixman_region32_fini(&update_region);
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scene_node_visibility(node, damage);
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scene_damage_outputs(scene, damage);
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pixman_region32_fini(damage);
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}
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|
|
struct wlr_scene_rect *wlr_scene_rect_create(struct wlr_scene_tree *parent,
|
|
int width, int height, const float color[static 4]) {
|
|
struct wlr_scene_rect *scene_rect =
|
|
calloc(1, sizeof(struct wlr_scene_rect));
|
|
if (scene_rect == NULL) {
|
|
return NULL;
|
|
}
|
|
assert(parent);
|
|
scene_node_init(&scene_rect->node, WLR_SCENE_NODE_RECT, parent);
|
|
|
|
scene_rect->width = width;
|
|
scene_rect->height = height;
|
|
memcpy(scene_rect->color, color, sizeof(scene_rect->color));
|
|
|
|
scene_node_update(&scene_rect->node, NULL);
|
|
|
|
return scene_rect;
|
|
}
|
|
|
|
void wlr_scene_rect_set_size(struct wlr_scene_rect *rect, int width, int height) {
|
|
if (rect->width == width && rect->height == height) {
|
|
return;
|
|
}
|
|
|
|
rect->width = width;
|
|
rect->height = height;
|
|
scene_node_update(&rect->node, NULL);
|
|
}
|
|
|
|
void wlr_scene_rect_set_color(struct wlr_scene_rect *rect, const float color[static 4]) {
|
|
if (memcmp(rect->color, color, sizeof(rect->color)) == 0) {
|
|
return;
|
|
}
|
|
|
|
memcpy(rect->color, color, sizeof(rect->color));
|
|
scene_node_update(&rect->node, NULL);
|
|
}
|
|
|
|
struct wlr_scene_buffer *wlr_scene_buffer_create(struct wlr_scene_tree *parent,
|
|
struct wlr_buffer *buffer) {
|
|
struct wlr_scene_buffer *scene_buffer = calloc(1, sizeof(*scene_buffer));
|
|
if (scene_buffer == NULL) {
|
|
return NULL;
|
|
}
|
|
assert(parent);
|
|
scene_node_init(&scene_buffer->node, WLR_SCENE_NODE_BUFFER, parent);
|
|
|
|
if (buffer) {
|
|
scene_buffer->buffer = wlr_buffer_lock(buffer);
|
|
}
|
|
|
|
wl_signal_init(&scene_buffer->events.output_enter);
|
|
wl_signal_init(&scene_buffer->events.output_leave);
|
|
wl_signal_init(&scene_buffer->events.output_present);
|
|
wl_signal_init(&scene_buffer->events.frame_done);
|
|
pixman_region32_init(&scene_buffer->opaque_region);
|
|
|
|
scene_node_update(&scene_buffer->node, NULL);
|
|
|
|
return scene_buffer;
|
|
}
|
|
|
|
void wlr_scene_buffer_set_buffer_with_damage(struct wlr_scene_buffer *scene_buffer,
|
|
struct wlr_buffer *buffer, pixman_region32_t *damage) {
|
|
// specifying a region for a NULL buffer doesn't make sense. We need to know
|
|
// about the buffer to scale the buffer local coordinates down to scene
|
|
// coordinates.
|
|
assert(buffer || !damage);
|
|
|
|
if (buffer == scene_buffer->buffer) {
|
|
return;
|
|
}
|
|
|
|
bool update = false;
|
|
wlr_buffer_unlock(scene_buffer->buffer);
|
|
|
|
if (buffer) {
|
|
// if this node used to not be mapped or its previous displayed
|
|
// buffer region will be different from what the new buffer would
|
|
// produce we need to update the node.
|
|
update = !scene_buffer->buffer ||
|
|
(scene_buffer->dst_width == 0 && scene_buffer->dst_height == 0 &&
|
|
(scene_buffer->buffer->width != buffer->width ||
|
|
scene_buffer->buffer->height != buffer->height));
|
|
|
|
scene_buffer->buffer = wlr_buffer_lock(buffer);
|
|
} else {
|
|
update = true;
|
|
scene_buffer->buffer = NULL;
|
|
}
|
|
|
|
if (update) {
|
|
scene_node_update(&scene_buffer->node, NULL);
|
|
// updating the node will already damage the whole node for us. Return
|
|
// early to not damage again
|
|
return;
|
|
}
|
|
|
|
int lx, ly;
|
|
if (!wlr_scene_node_coords(&scene_buffer->node, &lx, &ly)) {
|
|
return;
|
|
}
|
|
|
|
pixman_region32_t fallback_damage;
|
|
pixman_region32_init_rect(&fallback_damage, 0, 0, buffer->width, buffer->height);
|
|
if (!damage) {
|
|
damage = &fallback_damage;
|
|
}
|
|
|
|
struct wlr_fbox box = scene_buffer->src_box;
|
|
if (wlr_fbox_empty(&box)) {
|
|
box.x = 0;
|
|
box.y = 0;
|
|
|
|
if (scene_buffer->transform & WL_OUTPUT_TRANSFORM_90) {
|
|
box.width = buffer->height;
|
|
box.height = buffer->width;
|
|
} else {
|
|
box.width = buffer->width;
|
|
box.height = buffer->height;
|
|
}
|
|
}
|
|
|
|
double scale_x, scale_y;
|
|
if (scene_buffer->dst_width || scene_buffer->dst_height) {
|
|
scale_x = scene_buffer->dst_width / box.width;
|
|
scale_y = scene_buffer->dst_height / box.height;
|
|
} else {
|
|
scale_x = buffer->width / box.width;
|
|
scale_y = buffer->height / box.height;
|
|
}
|
|
|
|
pixman_region32_t trans_damage;
|
|
pixman_region32_init(&trans_damage);
|
|
wlr_region_transform(&trans_damage, damage,
|
|
scene_buffer->transform, buffer->width, buffer->height);
|
|
pixman_region32_intersect_rect(&trans_damage, &trans_damage,
|
|
box.x, box.y, box.width, box.height);
|
|
pixman_region32_translate(&trans_damage, -box.x, -box.y);
|
|
|
|
struct wlr_scene *scene = scene_node_get_root(&scene_buffer->node);
|
|
struct wlr_scene_output *scene_output;
|
|
wl_list_for_each(scene_output, &scene->outputs, link) {
|
|
float output_scale = scene_output->output->scale;
|
|
pixman_region32_t output_damage;
|
|
pixman_region32_init(&output_damage);
|
|
wlr_region_scale_xy(&output_damage, &trans_damage,
|
|
output_scale * scale_x, output_scale * scale_y);
|
|
|
|
pixman_region32_t cull_region;
|
|
pixman_region32_init(&cull_region);
|
|
wlr_region_scale(&cull_region, &scene_buffer->node.visible, output_scale);
|
|
pixman_region32_translate(&cull_region, -lx * output_scale, -ly * output_scale);
|
|
pixman_region32_intersect(&output_damage, &output_damage, &cull_region);
|
|
pixman_region32_fini(&cull_region);
|
|
|
|
pixman_region32_translate(&output_damage,
|
|
(lx - scene_output->x) * output_scale,
|
|
(ly - scene_output->y) * output_scale);
|
|
if (wlr_damage_ring_add(&scene_output->damage_ring, &output_damage)) {
|
|
wlr_output_schedule_frame(scene_output->output);
|
|
}
|
|
pixman_region32_fini(&output_damage);
|
|
}
|
|
|
|
pixman_region32_fini(&trans_damage);
|
|
pixman_region32_fini(&fallback_damage);
|
|
}
|
|
|
|
void wlr_scene_buffer_set_buffer(struct wlr_scene_buffer *scene_buffer,
|
|
struct wlr_buffer *buffer) {
|
|
wlr_scene_buffer_set_buffer_with_damage(scene_buffer, buffer, NULL);
|
|
}
|
|
|
|
void wlr_scene_buffer_set_opaque_region(struct wlr_scene_buffer *scene_buffer,
|
|
pixman_region32_t *region) {
|
|
if (pixman_region32_equal(&scene_buffer->opaque_region, region)) {
|
|
return;
|
|
}
|
|
|
|
pixman_region32_copy(&scene_buffer->opaque_region, region);
|
|
scene_node_update(&scene_buffer->node, NULL);
|
|
}
|
|
|
|
void wlr_scene_buffer_set_source_box(struct wlr_scene_buffer *scene_buffer,
|
|
const struct wlr_fbox *box) {
|
|
struct wlr_fbox *cur = &scene_buffer->src_box;
|
|
if ((wlr_fbox_empty(box) && wlr_fbox_empty(cur)) ||
|
|
(box != NULL && wlr_fbox_equal(cur, box))) {
|
|
return;
|
|
}
|
|
|
|
if (box != NULL) {
|
|
memcpy(cur, box, sizeof(*box));
|
|
} else {
|
|
memset(cur, 0, sizeof(*cur));
|
|
}
|
|
|
|
scene_node_update(&scene_buffer->node, NULL);
|
|
}
|
|
|
|
void wlr_scene_buffer_set_dest_size(struct wlr_scene_buffer *scene_buffer,
|
|
int width, int height) {
|
|
if (scene_buffer->dst_width == width && scene_buffer->dst_height == height) {
|
|
return;
|
|
}
|
|
|
|
scene_buffer->dst_width = width;
|
|
scene_buffer->dst_height = height;
|
|
scene_node_update(&scene_buffer->node, NULL);
|
|
}
|
|
|
|
void wlr_scene_buffer_set_transform(struct wlr_scene_buffer *scene_buffer,
|
|
enum wl_output_transform transform) {
|
|
if (scene_buffer->transform == transform) {
|
|
return;
|
|
}
|
|
|
|
scene_buffer->transform = transform;
|
|
scene_node_update(&scene_buffer->node, NULL);
|
|
}
|
|
|
|
void wlr_scene_buffer_send_frame_done(struct wlr_scene_buffer *scene_buffer,
|
|
struct timespec *now) {
|
|
if (pixman_region32_not_empty(&scene_buffer->node.visible)) {
|
|
wl_signal_emit_mutable(&scene_buffer->events.frame_done, now);
|
|
}
|
|
}
|
|
|
|
static struct wlr_texture *scene_buffer_get_texture(
|
|
struct wlr_scene_buffer *scene_buffer, struct wlr_renderer *renderer) {
|
|
struct wlr_client_buffer *client_buffer =
|
|
wlr_client_buffer_get(scene_buffer->buffer);
|
|
if (client_buffer != NULL) {
|
|
return client_buffer->texture;
|
|
}
|
|
|
|
if (scene_buffer->texture != NULL) {
|
|
return scene_buffer->texture;
|
|
}
|
|
|
|
scene_buffer->texture =
|
|
wlr_texture_from_buffer(renderer, scene_buffer->buffer);
|
|
return scene_buffer->texture;
|
|
}
|
|
|
|
static void scene_node_get_size(struct wlr_scene_node *node,
|
|
int *width, int *height) {
|
|
*width = 0;
|
|
*height = 0;
|
|
|
|
switch (node->type) {
|
|
case WLR_SCENE_NODE_TREE:
|
|
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);
|
|
}
|
|
|
|
void wlr_scene_node_set_enabled(struct wlr_scene_node *node, bool enabled) {
|
|
if (node->enabled == enabled) {
|
|
return;
|
|
}
|
|
|
|
int x, y;
|
|
pixman_region32_t visible;
|
|
pixman_region32_init(&visible);
|
|
if (wlr_scene_node_coords(node, &x, &y)) {
|
|
scene_node_visibility(node, &visible);
|
|
}
|
|
|
|
node->enabled = enabled;
|
|
|
|
scene_node_update(node, &visible);
|
|
}
|
|
|
|
void wlr_scene_node_set_position(struct wlr_scene_node *node, int x, int y) {
|
|
if (node->x == x && node->y == y) {
|
|
return;
|
|
}
|
|
|
|
node->x = x;
|
|
node->y = y;
|
|
scene_node_update(node, NULL);
|
|
}
|
|
|
|
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->link.prev == &sibling->link) {
|
|
return;
|
|
}
|
|
|
|
wl_list_remove(&node->link);
|
|
wl_list_insert(&sibling->link, &node->link);
|
|
scene_node_update(node, NULL);
|
|
}
|
|
|
|
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->link.next == &sibling->link) {
|
|
return;
|
|
}
|
|
|
|
wl_list_remove(&node->link);
|
|
wl_list_insert(sibling->link.prev, &node->link);
|
|
scene_node_update(node, NULL);
|
|
}
|
|
|
|
void wlr_scene_node_raise_to_top(struct wlr_scene_node *node) {
|
|
struct wlr_scene_node *current_top = wl_container_of(
|
|
node->parent->children.prev, current_top, 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->children.next, current_bottom, 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_tree *new_parent) {
|
|
assert(new_parent != NULL);
|
|
|
|
if (node->parent == new_parent) {
|
|
return;
|
|
}
|
|
|
|
/* Ensure that a node cannot become its own ancestor */
|
|
for (struct wlr_scene_tree *ancestor = new_parent; ancestor != NULL;
|
|
ancestor = ancestor->node.parent) {
|
|
assert(&ancestor->node != node);
|
|
}
|
|
|
|
int x, y;
|
|
pixman_region32_t visible;
|
|
pixman_region32_init(&visible);
|
|
if (wlr_scene_node_coords(node, &x, &y)) {
|
|
scene_node_visibility(node, &visible);
|
|
}
|
|
|
|
wl_list_remove(&node->link);
|
|
node->parent = new_parent;
|
|
wl_list_insert(new_parent->children.prev, &node->link);
|
|
scene_node_update(node, &visible);
|
|
}
|
|
|
|
bool wlr_scene_node_coords(struct wlr_scene_node *node,
|
|
int *lx_ptr, int *ly_ptr) {
|
|
assert(node);
|
|
|
|
int lx = 0, ly = 0;
|
|
bool enabled = true;
|
|
while (true) {
|
|
lx += node->x;
|
|
ly += node->y;
|
|
enabled = enabled && node->enabled;
|
|
if (node->parent == NULL) {
|
|
break;
|
|
}
|
|
|
|
node = &node->parent->node;
|
|
}
|
|
|
|
*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->enabled) {
|
|
return;
|
|
}
|
|
|
|
lx += node->x;
|
|
ly += node->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);
|
|
} else if (node->type == WLR_SCENE_NODE_TREE) {
|
|
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each(child, &scene_tree->children, 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 node_at_data {
|
|
double lx, ly;
|
|
double rx, ry;
|
|
struct wlr_scene_node *node;
|
|
};
|
|
|
|
static bool scene_node_at_iterator(struct wlr_scene_node *node,
|
|
int lx, int ly, void *data) {
|
|
struct node_at_data *at_data = data;
|
|
|
|
double rx = at_data->lx - lx;
|
|
double ry = at_data->ly - ly;
|
|
|
|
if (node->type == WLR_SCENE_NODE_BUFFER) {
|
|
struct wlr_scene_buffer *scene_buffer = wlr_scene_buffer_from_node(node);
|
|
|
|
if (scene_buffer->point_accepts_input &&
|
|
!scene_buffer->point_accepts_input(scene_buffer, rx, ry)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
at_data->rx = rx;
|
|
at_data->ry = ry;
|
|
at_data->node = node;
|
|
return true;
|
|
}
|
|
|
|
struct wlr_scene_node *wlr_scene_node_at(struct wlr_scene_node *node,
|
|
double lx, double ly, double *nx, double *ny) {
|
|
struct wlr_box box = {
|
|
.x = floor(lx),
|
|
.y = floor(ly),
|
|
.width = 1,
|
|
.height = 1
|
|
};
|
|
|
|
struct node_at_data data = {
|
|
.lx = lx,
|
|
.ly = ly
|
|
};
|
|
|
|
if (scene_nodes_in_box(node, &box, scene_node_at_iterator, &data)) {
|
|
if (nx) {
|
|
*nx = data.rx;
|
|
}
|
|
if (ny) {
|
|
*ny = data.ry;
|
|
}
|
|
return data.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 *damage, const float color[static 4],
|
|
const struct wlr_box *box, const float matrix[static 9]) {
|
|
struct wlr_renderer *renderer = output->renderer;
|
|
assert(renderer);
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
static void render_texture(struct wlr_output *output,
|
|
pixman_region32_t *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;
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
static void scene_node_render(struct wlr_scene_node *node,
|
|
struct wlr_scene_output *scene_output, pixman_region32_t *damage) {
|
|
int x, y;
|
|
wlr_scene_node_coords(node, &x, &y);
|
|
x -= scene_output->x;
|
|
y -= scene_output->y;
|
|
|
|
struct wlr_output *output = scene_output->output;
|
|
|
|
pixman_region32_t render_region;
|
|
pixman_region32_init(&render_region);
|
|
pixman_region32_copy(&render_region, &node->visible);
|
|
pixman_region32_translate(&render_region, -scene_output->x, -scene_output->y);
|
|
wlr_region_scale(&render_region, &render_region, output->scale);
|
|
pixman_region32_intersect(&render_region, &render_region, damage);
|
|
if (!pixman_region32_not_empty(&render_region)) {
|
|
pixman_region32_fini(&render_region);
|
|
return;
|
|
}
|
|
|
|
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_TREE:
|
|
assert(false);
|
|
break;
|
|
case WLR_SCENE_NODE_RECT:;
|
|
struct wlr_scene_rect *scene_rect = scene_rect_from_node(node);
|
|
|
|
render_rect(output, &render_region, 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);
|
|
assert(scene_buffer->buffer);
|
|
|
|
struct wlr_renderer *renderer = output->renderer;
|
|
texture = scene_buffer_get_texture(scene_buffer, renderer);
|
|
if (texture == NULL) {
|
|
break;
|
|
}
|
|
|
|
transform = wlr_output_transform_invert(scene_buffer->transform);
|
|
wlr_matrix_project_box(matrix, &dst_box, transform, 0.0,
|
|
output->transform_matrix);
|
|
|
|
render_texture(output, &render_region, texture, &scene_buffer->src_box,
|
|
&dst_box, matrix);
|
|
|
|
wl_signal_emit_mutable(&scene_buffer->events.output_present, scene_output);
|
|
break;
|
|
}
|
|
|
|
pixman_region32_fini(&render_region);
|
|
}
|
|
|
|
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_node_output_update(struct wlr_scene_node *node,
|
|
struct wl_list *outputs, struct wlr_scene_output *ignore) {
|
|
if (node->type == WLR_SCENE_NODE_TREE) {
|
|
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each(child, &scene_tree->children, link) {
|
|
scene_node_output_update(child, outputs, ignore);
|
|
}
|
|
return;
|
|
}
|
|
|
|
update_node_update_outputs(node, outputs, ignore);
|
|
}
|
|
|
|
static void scene_output_update_geometry(struct wlr_scene_output *scene_output) {
|
|
int width, height;
|
|
wlr_output_transformed_resolution(scene_output->output, &width, &height);
|
|
wlr_damage_ring_set_bounds(&scene_output->damage_ring, width, height);
|
|
wlr_output_schedule_frame(scene_output->output);
|
|
|
|
scene_node_output_update(&scene_output->scene->tree.node,
|
|
&scene_output->scene->outputs, NULL);
|
|
}
|
|
|
|
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 |
|
|
WLR_OUTPUT_STATE_ENABLED)) {
|
|
scene_output_update_geometry(scene_output);
|
|
}
|
|
}
|
|
|
|
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_output_update_geometry(scene_output);
|
|
}
|
|
|
|
static void scene_output_handle_damage(struct wl_listener *listener, void *data) {
|
|
struct wlr_scene_output *scene_output = wl_container_of(listener,
|
|
scene_output, output_damage);
|
|
struct wlr_output_event_damage *event = data;
|
|
if (wlr_damage_ring_add(&scene_output->damage_ring, event->damage)) {
|
|
wlr_output_schedule_frame(scene_output->output);
|
|
}
|
|
}
|
|
|
|
static void scene_output_handle_needs_frame(struct wl_listener *listener, void *data) {
|
|
struct wlr_scene_output *scene_output = wl_container_of(listener,
|
|
scene_output, output_needs_frame);
|
|
wlr_output_schedule_frame(scene_output->output);
|
|
}
|
|
|
|
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->output = output;
|
|
scene_output->scene = scene;
|
|
wlr_addon_init(&scene_output->addon, &output->addons, scene, &output_addon_impl);
|
|
|
|
wlr_damage_ring_init(&scene_output->damage_ring);
|
|
wl_list_init(&scene_output->damage_highlight_regions);
|
|
|
|
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);
|
|
|
|
wl_signal_init(&scene_output->events.destroy);
|
|
|
|
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);
|
|
|
|
scene_output->output_damage.notify = scene_output_handle_damage;
|
|
wl_signal_add(&output->events.damage, &scene_output->output_damage);
|
|
|
|
scene_output->output_needs_frame.notify = scene_output_handle_needs_frame;
|
|
wl_signal_add(&output->events.needs_frame, &scene_output->output_needs_frame);
|
|
|
|
scene_output_update_geometry(scene_output);
|
|
|
|
return scene_output;
|
|
}
|
|
|
|
static void highlight_region_destroy(struct highlight_region *damage) {
|
|
wl_list_remove(&damage->link);
|
|
pixman_region32_fini(&damage->region);
|
|
free(damage);
|
|
}
|
|
|
|
void wlr_scene_output_destroy(struct wlr_scene_output *scene_output) {
|
|
if (scene_output == NULL) {
|
|
return;
|
|
}
|
|
|
|
wl_signal_emit_mutable(&scene_output->events.destroy, NULL);
|
|
|
|
scene_node_output_update(&scene_output->scene->tree.node,
|
|
&scene_output->scene->outputs, scene_output);
|
|
|
|
struct highlight_region *damage, *tmp_damage;
|
|
wl_list_for_each_safe(damage, tmp_damage, &scene_output->damage_highlight_regions, link) {
|
|
highlight_region_destroy(damage);
|
|
}
|
|
|
|
wlr_addon_finish(&scene_output->addon);
|
|
wlr_damage_ring_finish(&scene_output->damage_ring);
|
|
wl_list_remove(&scene_output->link);
|
|
wl_list_remove(&scene_output->output_commit.link);
|
|
wl_list_remove(&scene_output->output_mode.link);
|
|
wl_list_remove(&scene_output->output_damage.link);
|
|
wl_list_remove(&scene_output->output_needs_frame.link);
|
|
|
|
wl_array_release(&scene_output->render_list);
|
|
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;
|
|
|
|
scene_output_update_geometry(scene_output);
|
|
}
|
|
|
|
static bool scene_node_invisible(struct wlr_scene_node *node) {
|
|
if (node->type == WLR_SCENE_NODE_TREE) {
|
|
return true;
|
|
} else if (node->type == WLR_SCENE_NODE_RECT) {
|
|
struct wlr_scene_rect *rect = scene_rect_from_node(node);
|
|
|
|
return rect->color[3] == 0.f;
|
|
} else if (node->type == WLR_SCENE_NODE_BUFFER) {
|
|
struct wlr_scene_buffer *buffer = wlr_scene_buffer_from_node(node);
|
|
|
|
return buffer->buffer == NULL;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
struct render_list_constructor_data {
|
|
struct wlr_box box;
|
|
struct wl_array *render_list;
|
|
bool calculate_visibility;
|
|
};
|
|
|
|
static bool construct_render_list_iterator(struct wlr_scene_node *node,
|
|
int lx, int ly, void *_data) {
|
|
struct render_list_constructor_data *data = _data;
|
|
|
|
if (scene_node_invisible(node)) {
|
|
return false;
|
|
}
|
|
|
|
// while rendering, the background should always be black.
|
|
// If we see a black rect, we can ignore rendering everything under the rect
|
|
// and even the rect itself.
|
|
if (node->type == WLR_SCENE_NODE_RECT && data->calculate_visibility) {
|
|
struct wlr_scene_rect *rect = scene_rect_from_node(node);
|
|
float *black = (float[4]){ 0.f, 0.f, 0.f, 1.f };
|
|
|
|
if (memcmp(rect->color, black, sizeof(float) * 4) == 0) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
pixman_region32_t intersection;
|
|
pixman_region32_init(&intersection);
|
|
pixman_region32_intersect_rect(&intersection, &node->visible,
|
|
data->box.x, data->box.y,
|
|
data->box.width, data->box.height);
|
|
if (!pixman_region32_not_empty(&intersection)) {
|
|
pixman_region32_fini(&intersection);
|
|
return false;
|
|
}
|
|
|
|
pixman_region32_fini(&intersection);
|
|
|
|
struct wlr_scene_node **entry = wl_array_add(data->render_list,
|
|
sizeof(struct wlr_scene_node *));
|
|
if (entry) {
|
|
*entry = node;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static bool scene_node_try_direct_scanout(struct wlr_scene_node *node,
|
|
struct wlr_scene_output *scene_output, struct wlr_box *box) {
|
|
if (!scene_output->scene->direct_scanout) {
|
|
return false;
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
if (node->type != WLR_SCENE_NODE_BUFFER) {
|
|
return false;
|
|
}
|
|
|
|
struct wlr_scene_buffer *buffer = wlr_scene_buffer_from_node(node);
|
|
struct wlr_output *output = scene_output->output;
|
|
|
|
struct wlr_fbox default_box = {0};
|
|
if (buffer->transform & WL_OUTPUT_TRANSFORM_90) {
|
|
default_box.width = buffer->buffer->height;
|
|
default_box.height = buffer->buffer->width;
|
|
} else {
|
|
default_box.width = buffer->buffer->width;
|
|
default_box.height = buffer->buffer->height;
|
|
}
|
|
|
|
if (!wlr_fbox_empty(&buffer->src_box) &&
|
|
!wlr_fbox_equal(&buffer->src_box, &default_box)) {
|
|
return false;
|
|
}
|
|
|
|
if (buffer->transform != output->transform) {
|
|
return false;
|
|
}
|
|
|
|
struct wlr_box node_box;
|
|
wlr_scene_node_coords(node, &node_box.x, &node_box.y);
|
|
scene_node_get_size(node, &node_box.width, &node_box.height);
|
|
|
|
if (!wlr_box_equal(box, &node_box)) {
|
|
return false;
|
|
}
|
|
|
|
wlr_output_attach_buffer(output, buffer->buffer);
|
|
if (!wlr_output_test(output)) {
|
|
wlr_output_rollback(output);
|
|
return false;
|
|
}
|
|
|
|
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);
|
|
|
|
struct render_list_constructor_data list_con = {
|
|
.box = { .x = scene_output->x, .y = scene_output->y },
|
|
.render_list = &scene_output->render_list,
|
|
.calculate_visibility = scene_output->scene->calculate_visibility,
|
|
};
|
|
wlr_output_effective_resolution(output,
|
|
&list_con.box.width, &list_con.box.height);
|
|
|
|
list_con.render_list->size = 0;
|
|
scene_nodes_in_box(&scene_output->scene->tree.node, &list_con.box,
|
|
construct_render_list_iterator, &list_con);
|
|
array_realloc(list_con.render_list, list_con.render_list->size);
|
|
|
|
int list_len = list_con.render_list->size / sizeof(struct wlr_scene_node *);
|
|
struct wlr_scene_node **list_data = list_con.render_list->data;
|
|
|
|
// if there is only one thing to render let's see if that thing can be
|
|
// directly scanned out
|
|
bool scanout = false;
|
|
if (list_len == 1) {
|
|
struct wlr_scene_node *node = list_data[0];
|
|
scanout = scene_node_try_direct_scanout(node, scene_output, &list_con.box);
|
|
}
|
|
|
|
if (scene_output->prev_scanout != scanout) {
|
|
scene_output->prev_scanout = scanout;
|
|
wlr_log(WLR_DEBUG, "Direct scan-out %s",
|
|
scanout ? "enabled" : "disabled");
|
|
// When exiting direct scan-out, damage everything
|
|
wlr_damage_ring_add_whole(&scene_output->damage_ring);
|
|
}
|
|
|
|
if (scanout) {
|
|
struct wlr_scene_node *node = list_data[0];
|
|
|
|
assert(node->type == WLR_SCENE_NODE_BUFFER);
|
|
struct wlr_scene_buffer *buffer = wlr_scene_buffer_from_node(node);
|
|
wl_signal_emit_mutable(&buffer->events.output_present, scene_output);
|
|
return true;
|
|
}
|
|
|
|
if (debug_damage == WLR_SCENE_DEBUG_DAMAGE_RERENDER) {
|
|
wlr_damage_ring_add_whole(&scene_output->damage_ring);
|
|
}
|
|
|
|
struct timespec now;
|
|
if (debug_damage == WLR_SCENE_DEBUG_DAMAGE_HIGHLIGHT) {
|
|
struct wl_list *regions = &scene_output->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_ring.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_ring.current);
|
|
current_damage->when = 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_damage_ring_add(&scene_output->damage_ring, &acc_damage);
|
|
pixman_region32_fini(&acc_damage);
|
|
}
|
|
|
|
int buffer_age;
|
|
if (!wlr_output_attach_render(output, &buffer_age)) {
|
|
return false;
|
|
}
|
|
|
|
pixman_region32_t damage;
|
|
pixman_region32_init(&damage);
|
|
wlr_damage_ring_get_buffer_damage(&scene_output->damage_ring,
|
|
buffer_age, &damage);
|
|
if (!output->needs_frame && !pixman_region32_not_empty(
|
|
&scene_output->damage_ring.current)) {
|
|
pixman_region32_fini(&damage);
|
|
wlr_output_rollback(output);
|
|
return true;
|
|
}
|
|
|
|
wlr_renderer_begin(renderer, output->width, output->height);
|
|
|
|
pixman_region32_t background;
|
|
pixman_region32_init(&background);
|
|
pixman_region32_copy(&background, &damage);
|
|
|
|
// Cull areas of the background that are occluded by opaque regions of
|
|
// scene nodes above. Those scene nodes will just render atop having us
|
|
// never see the background.
|
|
if (scene_output->scene->calculate_visibility) {
|
|
for (int i = list_len - 1; i >= 0; i--) {
|
|
struct wlr_scene_node *node = list_data[i];
|
|
int x, y;
|
|
wlr_scene_node_coords(node, &x, &y);
|
|
|
|
// We must only cull opaque regions that are visible by the node.
|
|
// The node's visibility will have the knowledge of a black rect
|
|
// that may have been omitted from the render list via the black
|
|
// rect optimization. In order to ensure we don't cull background
|
|
// rendering in that black rect region, consider the node's visibility.
|
|
pixman_region32_t opaque;
|
|
pixman_region32_init(&opaque);
|
|
scene_node_opaque_region(node, x, y, &opaque);
|
|
pixman_region32_intersect(&opaque, &opaque, &node->visible);
|
|
|
|
pixman_region32_translate(&opaque, -scene_output->x, -scene_output->y);
|
|
wlr_region_scale(&opaque, &opaque, scene_output->output->scale);
|
|
pixman_region32_subtract(&background, &background, &opaque);
|
|
pixman_region32_fini(&opaque);
|
|
}
|
|
}
|
|
|
|
int nrects;
|
|
pixman_box32_t *rects = pixman_region32_rectangles(&background, &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 });
|
|
}
|
|
pixman_region32_fini(&background);
|
|
|
|
for (int i = list_len - 1; i >= 0; i--) {
|
|
struct wlr_scene_node *node = list_data[i];
|
|
scene_node_render(node, scene_output, &damage);
|
|
}
|
|
|
|
wlr_renderer_scissor(renderer, NULL);
|
|
|
|
if (debug_damage == WLR_SCENE_DEBUG_DAMAGE_HIGHLIGHT) {
|
|
struct highlight_region *damage;
|
|
wl_list_for_each(damage, &scene_output->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_ring.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 (success) {
|
|
wlr_damage_ring_rotate(&scene_output->damage_ring);
|
|
}
|
|
|
|
if (debug_damage == WLR_SCENE_DEBUG_DAMAGE_HIGHLIGHT &&
|
|
!wl_list_empty(&scene_output->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->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);
|
|
}
|
|
} else if (node->type == WLR_SCENE_NODE_TREE) {
|
|
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each(child, &scene_tree->children, 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->tree.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->enabled) {
|
|
return;
|
|
}
|
|
|
|
lx += node->x;
|
|
ly += node->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);
|
|
}
|
|
} else if (node->type == WLR_SCENE_NODE_TREE) {
|
|
struct wlr_scene_tree *scene_tree = scene_tree_from_node(node);
|
|
struct wlr_scene_node *child;
|
|
wl_list_for_each(child, &scene_tree->children, 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->tree.node, 0, 0,
|
|
iterator, user_data);
|
|
}
|