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scene_output_layout: make output adding explicit 

Closes: https://gitlab.freedesktop.org/wlroots/wlroots/-/issues/3709
This commit is contained in:
Rose Hudson 2023-08-22 11:52:45 +02:00 committed by Simon Ser
parent 91f813ffb7
commit f5917f0247
3 changed files with 27 additions and 37 deletions
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20
include/wlr/types/wlr_scene.h
View File

@ -30,6 +30,7 @@
struct wlr_output;
struct wlr_output_layout;
struct wlr_output_layout_output;
struct wlr_xdg_surface;
struct wlr_layer_surface_v1;
struct wlr_drag_icon;
@ -37,6 +38,7 @@ struct wlr_surface;
struct wlr_scene_node;
struct wlr_scene_buffer;
struct wlr_scene_output_layout;
struct wlr_presentation;
struct wlr_linux_dmabuf_v1;
@ -515,14 +517,22 @@ struct wlr_scene_output *wlr_scene_get_scene_output(struct wlr_scene *scene,
/**
* Attach an output layout to a scene.
*
* Adding, removing, or repositioning an output in the output layout
* will respectively add, remove or reposition a corresponding
* scene-graph output. When the output layout is destroyed, scene-graph
* outputs which were created by this helper will be destroyed.
* With an attached `wlr_scene_output_layout`, removing or repositioning an output in the output
* layout will respectively remove or reposition a corresponding scene-graph output. When the output
* layout is destroyed, scene-graph outputs which were attached to this helper will be destroyed.
*
* When adding an output to the output_layout, users must also create a `wlr_scene_output` and pass
* it to wlr_scene_output_layout_add_output().
*/
bool wlr_scene_attach_output_layout(struct wlr_scene *scene,
struct wlr_scene_output_layout *wlr_scene_attach_output_layout(struct wlr_scene *scene,
struct wlr_output_layout *output_layout);
/**
* Add an output to the scene, with its positioning defined by the output layout.
*/
void wlr_scene_output_layout_add_output(struct wlr_scene_output_layout *sol,
struct wlr_output_layout_output *lo, struct wlr_scene_output *so);
/**
* Add a node displaying a surface and all of its sub-surfaces to the
* scene-graph.

8
tinywl/tinywl.c
View File

@ -39,6 +39,7 @@ struct tinywl_server {
struct wlr_renderer *renderer;
struct wlr_allocator *allocator;
struct wlr_scene *scene;
struct wlr_scene_output_layout *scene_layout;
struct wlr_xdg_shell *xdg_shell;
struct wl_listener new_xdg_surface;
@ -646,7 +647,10 @@ static void server_new_output(struct wl_listener *listener, void *data) {
* display, which Wayland clients can see to find out information about the
* output (such as DPI, scale factor, manufacturer, etc).
*/
wlr_output_layout_add_auto(server->output_layout, wlr_output);
struct wlr_output_layout_output *l_output = wlr_output_layout_add_auto(server->output_layout,
wlr_output);
struct wlr_scene_output *scene_output = wlr_scene_output_create(server->scene, wlr_output);
wlr_scene_output_layout_add_output(server->scene_layout, l_output, scene_output);
}
static void xdg_toplevel_map(struct wl_listener *listener, void *data) {
@ -906,7 +910,7 @@ int main(int argc, char *argv[]) {
* necessary.
*/
server.scene = wlr_scene_create();
wlr_scene_attach_output_layout(server.scene, server.output_layout);
server.scene_layout = wlr_scene_attach_output_layout(server.scene, server.output_layout);
/* Set up xdg-shell version 3. The xdg-shell is a Wayland protocol which is
* used for application windows. For more detail on shells, refer to my

36
types/scene/output_layout.c
View File

@ -8,7 +8,6 @@ struct wlr_scene_output_layout {
struct wl_list outputs; // wlr_scene_output_layout_output.link
struct wl_listener layout_add;
struct wl_listener layout_change;
struct wl_listener layout_destroy;
struct wl_listener scene_destroy;
@ -53,7 +52,6 @@ static void scene_output_layout_destroy(struct wlr_scene_output_layout *sol) {
wl_list_for_each_safe(solo, tmp, &sol->outputs, link) {
scene_output_layout_output_destroy(solo);
}
wl_list_remove(&sol->layout_add.link);
wl_list_remove(&sol->layout_change.link);
wl_list_remove(&sol->layout_destroy.link);
wl_list_remove(&sol->scene_destroy.link);
@ -72,19 +70,14 @@ static void scene_output_layout_handle_layout_change(
}
}
static void scene_output_layout_add(struct wlr_scene_output_layout *sol,
struct wlr_output_layout_output *lo) {
void wlr_scene_output_layout_add_output(struct wlr_scene_output_layout *sol,
struct wlr_output_layout_output *lo, struct wlr_scene_output *so) {
struct wlr_scene_output_layout_output *solo = calloc(1, sizeof(*solo));
if (solo == NULL) {
return;
}
solo->scene_output = wlr_scene_output_create(sol->scene, lo->output);
if (solo->scene_output == NULL) {
free(solo);
return;
}
solo->scene_output = so;
solo->layout_output = lo;
solo->layout_output_destroy.notify =
@ -101,15 +94,6 @@ static void scene_output_layout_add(struct wlr_scene_output_layout *sol,
wlr_scene_output_set_position(solo->scene_output, lo->x, lo->y);
}
static void scene_output_layout_handle_layout_add(
struct wl_listener *listener, void *data) {
struct wlr_scene_output_layout *sol =
wl_container_of(listener, sol, layout_add);
struct wlr_output_layout_output *lo = data;
scene_output_layout_add(sol, lo);
}
static void scene_output_layout_handle_layout_destroy(
struct wl_listener *listener, void *data) {
struct wlr_scene_output_layout *sol =
@ -124,11 +108,11 @@ static void scene_output_layout_handle_scene_destroy(
scene_output_layout_destroy(sol);
}
bool wlr_scene_attach_output_layout(struct wlr_scene *scene,
struct wlr_scene_output_layout *wlr_scene_attach_output_layout(struct wlr_scene *scene,
struct wlr_output_layout *output_layout) {
struct wlr_scene_output_layout *sol = calloc(1, sizeof(*sol));
if (sol == NULL) {
return false;
return NULL;
}
sol->scene = scene;
@ -142,16 +126,8 @@ bool wlr_scene_attach_output_layout(struct wlr_scene *scene,
sol->layout_change.notify = scene_output_layout_handle_layout_change;
wl_signal_add(&output_layout->events.change, &sol->layout_change);
sol->layout_add.notify = scene_output_layout_handle_layout_add;
wl_signal_add(&output_layout->events.add, &sol->layout_add);
sol->scene_destroy.notify = scene_output_layout_handle_scene_destroy;
wl_signal_add(&scene->tree.node.events.destroy, &sol->scene_destroy);
struct wlr_output_layout_output *lo;
wl_list_for_each(lo, &output_layout->outputs, link) {
scene_output_layout_add(sol, lo);
}
return true;
return sol;
}