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-rw-r--r--include/wlr/types/wlr_scene.h7
-rw-r--r--types/scene/wlr_scene.c167
2 files changed, 128 insertions, 46 deletions
diff --git a/include/wlr/types/wlr_scene.h b/include/wlr/types/wlr_scene.h
index eaa7b07c..a02a5c89 100644
--- a/include/wlr/types/wlr_scene.h
+++ b/include/wlr/types/wlr_scene.h
@@ -111,8 +111,14 @@ struct wlr_scene_buffer {
// May be NULL
struct wlr_buffer *buffer;
+ struct {
+ struct wl_signal output_enter; // struct wlr_scene_output
+ struct wl_signal output_leave; // struct wlr_scene_output
+ } events;
+
// private state
+ uint64_t active_outputs;
struct wlr_texture *texture;
struct wlr_fbox src_box;
int dst_width, dst_height;
@@ -132,6 +138,7 @@ struct wlr_scene_output {
// private state
+ uint8_t index;
bool prev_scanout;
};
diff --git a/types/scene/wlr_scene.c b/types/scene/wlr_scene.c
index 656f6626..5eb8165d 100644
--- a/types/scene/wlr_scene.c
+++ b/types/scene/wlr_scene.c
@@ -17,11 +17,6 @@ static struct wlr_scene *scene_root_from_node(struct wlr_scene_node *node) {
return (struct wlr_scene *)node;
}
-static struct wlr_scene_tree *scene_tree_from_node(struct wlr_scene_node *node) {
- assert(node->type == WLR_SCENE_NODE_TREE);
- return (struct wlr_scene_tree *)node;
-}
-
struct wlr_scene_surface *wlr_scene_surface_from_node(
struct wlr_scene_node *node) {
assert(node->type == WLR_SCENE_NODE_SURFACE);
@@ -73,18 +68,6 @@ static void scene_node_init(struct wlr_scene_node *node,
}
}
-static void scene_node_finish(struct wlr_scene_node *node) {
- wlr_signal_emit_safe(&node->events.destroy, NULL);
-
- struct wlr_scene_node *child, *child_tmp;
- wl_list_for_each_safe(child, child_tmp,
- &node->state.children, state.link) {
- wlr_scene_node_destroy(child);
- }
-
- scene_node_state_finish(&node->state);
-}
-
static void scene_node_damage_whole(struct wlr_scene_node *node);
void wlr_scene_node_destroy(struct wlr_scene_node *node) {
@@ -93,7 +76,11 @@ void wlr_scene_node_destroy(struct wlr_scene_node *node) {
}
scene_node_damage_whole(node);
- scene_node_finish(node);
+
+ // We want to call the destroy listeners before we do anything else
+ // in case the destroy signal would like to remove children before they
+ // are recursively destroyed.
+ wlr_signal_emit_safe(&node->events.destroy, NULL);
struct wlr_scene *scene = scene_node_get_root(node);
struct wlr_scene_output *scene_output;
@@ -105,12 +92,6 @@ void wlr_scene_node_destroy(struct wlr_scene_node *node) {
}
wl_list_remove(&scene->presentation_destroy.link);
-
- free(scene);
- break;
- case WLR_SCENE_NODE_TREE:;
- struct wlr_scene_tree *tree = scene_tree_from_node(node);
- free(tree);
break;
case WLR_SCENE_NODE_SURFACE:;
struct wlr_scene_surface *scene_surface = wlr_scene_surface_from_node(node);
@@ -123,20 +104,36 @@ void wlr_scene_node_destroy(struct wlr_scene_node *node) {
wl_list_remove(&scene_surface->surface_commit.link);
wl_list_remove(&scene_surface->surface_destroy.link);
-
- free(scene_surface);
- break;
- case WLR_SCENE_NODE_RECT:;
- struct wlr_scene_rect *scene_rect = scene_rect_from_node(node);
- free(scene_rect);
break;
case WLR_SCENE_NODE_BUFFER:;
struct wlr_scene_buffer *scene_buffer = scene_buffer_from_node(node);
+
+ uint64_t active = scene_buffer->active_outputs;
+ if (active) {
+ wl_list_for_each(scene_output, &scene->outputs, link) {
+ if (active & (1ull << scene_output->index)) {
+ wlr_signal_emit_safe(&scene_buffer->events.output_leave,
+ scene_output);
+ }
+ }
+ }
+
wlr_texture_destroy(scene_buffer->texture);
wlr_buffer_unlock(scene_buffer->buffer);
- free(scene_buffer);
+ break;
+ case WLR_SCENE_NODE_TREE:
+ case WLR_SCENE_NODE_RECT:
break;
}
+
+ struct wlr_scene_node *child, *child_tmp;
+ wl_list_for_each_safe(child, child_tmp,
+ &node->state.children, state.link) {
+ wlr_scene_node_destroy(child);
+ }
+
+ scene_node_state_finish(&node->state);
+ free(node);
}
struct wlr_scene *wlr_scene_create(void) {
@@ -167,6 +164,8 @@ static void scene_surface_handle_surface_destroy(struct wl_listener *listener,
wlr_scene_node_destroy(&scene_surface->node);
}
+static void scene_node_get_size(struct wlr_scene_node *node, int *lx, int *ly);
+
// This function must be called whenever the coordinates/dimensions of a scene
// surface or scene output change. It is not necessary to call when a scene
// surface's node is enabled/disabled or obscured by other nodes. To quote the
@@ -210,26 +209,62 @@ static void scene_surface_update_outputs(
}
}
-static void scene_node_update_surface_outputs_iterator(
+// This function must be called whenever the coordinates/dimensions of a scene
+// buffer or scene output change. It is not necessary to call when a scene
+// buffer's node is enabled/disabled or obscured by other nodes.
+static void scene_buffer_update_outputs(
+ struct wlr_scene_buffer *scene_buffer,
+ int lx, int ly, struct wlr_scene *scene) {
+ struct wlr_box buffer_box = { .x = lx, .y = ly };
+ scene_node_get_size(&scene_buffer->node, &buffer_box.width, &buffer_box.height);
+
+ struct wlr_scene_output *scene_output;
+ wl_list_for_each(scene_output, &scene->outputs, link) {
+ struct wlr_box output_box = {
+ .x = scene_output->x,
+ .y = scene_output->y,
+ };
+ wlr_output_effective_resolution(scene_output->output,
+ &output_box.width, &output_box.height);
+
+ struct wlr_box intersection;
+ bool intersects = wlr_box_intersection(&intersection, &buffer_box, &output_box);
+ bool intersects_before = scene_buffer->active_outputs & (1ull << scene_output->index);
+
+ if (intersects && !intersects_before) {
+ scene_buffer->active_outputs |= 1ull << scene_output->index;
+ wlr_signal_emit_safe(&scene_buffer->events.output_enter, scene_output);
+ } else if (!intersects && intersects_before) {
+ scene_buffer->active_outputs &= ~(1ull << scene_output->index);
+ wlr_signal_emit_safe(&scene_buffer->events.output_leave, scene_output);
+ }
+ }
+}
+
+static void _scene_node_update_outputs(
struct wlr_scene_node *node, int lx, int ly, struct wlr_scene *scene) {
if (node->type == WLR_SCENE_NODE_SURFACE) {
struct wlr_scene_surface *scene_surface =
wlr_scene_surface_from_node(node);
scene_surface_update_outputs(scene_surface, lx, ly, scene);
+ } else if (node->type == WLR_SCENE_NODE_BUFFER) {
+ struct wlr_scene_buffer *scene_buffer =
+ scene_buffer_from_node(node);
+ scene_buffer_update_outputs(scene_buffer, lx, ly, scene);
}
struct wlr_scene_node *child;
wl_list_for_each(child, &node->state.children, state.link) {
- scene_node_update_surface_outputs_iterator(child, lx + child->state.x,
+ _scene_node_update_outputs(child, lx + child->state.x,
ly + child->state.y, scene);
}
}
-static void scene_node_update_surface_outputs(struct wlr_scene_node *node) {
+static void scene_node_update_outputs(struct wlr_scene_node *node) {
struct wlr_scene *scene = scene_node_get_root(node);
int lx, ly;
wlr_scene_node_coords(node, &lx, &ly);
- scene_node_update_surface_outputs_iterator(node, lx, ly, scene);
+ _scene_node_update_outputs(node, lx, ly, scene);
}
static void scene_surface_handle_surface_commit(struct wl_listener *listener,
@@ -307,7 +342,7 @@ struct wlr_scene_surface *wlr_scene_surface_create(struct wlr_scene_node *parent
scene_node_damage_whole(&scene_surface->node);
- scene_node_update_surface_outputs(&scene_surface->node);
+ scene_node_update_outputs(&scene_surface->node);
return scene_surface;
}
@@ -362,8 +397,13 @@ struct wlr_scene_buffer *wlr_scene_buffer_create(struct wlr_scene_node *parent,
scene_buffer->buffer = wlr_buffer_lock(buffer);
}
+ wl_signal_init(&scene_buffer->events.output_enter);
+ wl_signal_init(&scene_buffer->events.output_leave);
+
scene_node_damage_whole(&scene_buffer->node);
+ scene_node_update_outputs(&scene_buffer->node);
+
return scene_buffer;
}
@@ -386,6 +426,8 @@ void wlr_scene_buffer_set_buffer(struct wlr_scene_buffer *scene_buffer,
}
scene_node_damage_whole(&scene_buffer->node);
+
+ scene_node_update_outputs(&scene_buffer->node);
}
void wlr_scene_buffer_set_source_box(struct wlr_scene_buffer *scene_buffer,
@@ -415,6 +457,8 @@ void wlr_scene_buffer_set_dest_size(struct wlr_scene_buffer *scene_buffer,
scene_buffer->dst_width = width;
scene_buffer->dst_height = height;
scene_node_damage_whole(&scene_buffer->node);
+
+ scene_node_update_outputs(&scene_buffer->node);
}
void wlr_scene_buffer_set_transform(struct wlr_scene_buffer *scene_buffer,
@@ -559,7 +603,7 @@ void wlr_scene_node_set_position(struct wlr_scene_node *node, int x, int y) {
node->state.y = y;
scene_node_damage_whole(node);
- scene_node_update_surface_outputs(node);
+ scene_node_update_outputs(node);
}
void wlr_scene_node_place_above(struct wlr_scene_node *node,
@@ -634,7 +678,7 @@ void wlr_scene_node_reparent(struct wlr_scene_node *node,
scene_node_damage_whole(node);
- scene_node_update_surface_outputs(node);
+ scene_node_update_outputs(node);
}
bool wlr_scene_node_coords(struct wlr_scene_node *node,
@@ -968,22 +1012,53 @@ struct wlr_scene_output *wlr_scene_output_create(struct wlr_scene *scene,
scene_output->output = output;
scene_output->scene = scene;
wlr_addon_init(&scene_output->addon, &output->addons, scene, &output_addon_impl);
- wl_list_insert(&scene->outputs, &scene_output->link);
+
+ 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 = &current_output->link;
+ }
+
+ scene_output->index = prev_output_index + 1;
+ assert(scene_output->index < 64);
+ wl_list_insert(prev_output_link, &scene_output->link);
wlr_output_damage_add_whole(scene_output->damage);
return scene_output;
}
-static void scene_output_send_leave_iterator(struct wlr_surface *surface,
- int sx, int sy, void *data) {
- struct wlr_output *output = data;
- wlr_surface_send_leave(surface, output);
+static void scene_node_remove_output(struct wlr_scene_node *node,
+ struct wlr_scene_output *output) {
+ if (node->type == WLR_SCENE_NODE_SURFACE) {
+ struct wlr_scene_surface *scene_surface =
+ wlr_scene_surface_from_node(node);
+ wlr_surface_send_leave(scene_surface->surface, output->output);
+ } else if (node->type == WLR_SCENE_NODE_BUFFER) {
+ struct wlr_scene_buffer *scene_buffer =
+ 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) {
- wlr_scene_output_for_each_surface(scene_output,
- scene_output_send_leave_iterator, scene_output->output);
+ scene_node_remove_output(&scene_output->scene->node, scene_output);
wlr_addon_finish(&scene_output->addon);
wl_list_remove(&scene_output->link);
@@ -1013,7 +1088,7 @@ void wlr_scene_output_set_position(struct wlr_scene_output *scene_output,
scene_output->y = ly;
wlr_output_damage_add_whole(scene_output->damage);
- scene_node_update_surface_outputs(&scene_output->scene->node);
+ scene_node_update_outputs(&scene_output->scene->node);
}
struct check_scanout_data {