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Allow leasing desktop displays

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Apps such as Gamescope eventually want to offer a DRM lease option to use planes and handle all of getting to the screen themselves.

This implements logic to allow leasing of desktop displays
This commit is contained in:
Joshua Ashton 2022-06-16 05:56:38 +00:00 • committed by Johan Malm
parent 050af96d57
commit 505b1edb98
3 changed files with 37 additions and 17 deletions
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2
include/labwc.h
View file

@ -251,6 +251,8 @@ struct output {
struct wl_listener destroy;
struct wl_listener frame;
bool leased;
};
#undef LAB_NR_LAYERS

27
src/output.c
View file

@ -59,16 +59,22 @@ new_output_notify(struct wl_listener *listener, void *data)
struct wlr_output *wlr_output = data;
/*
* If this is a non-desktop output, offer it for leasing.
* We may want to do more logic here in future, if we choose
* to offer non-desktop outputs.
* We offer any display as available for lease, some apps like
* gamescope, want to take ownership of a display when they can
* to use planes and present directly.
* This is also useful for debugging the DRM parts of
* another compositor.
*/
if (wlr_output->non_desktop) {
wlr_log(WLR_DEBUG, "Not configuring non-desktop output");
if (server->drm_lease_manager) {
wlr_drm_lease_v1_manager_offer_output(
server->drm_lease_manager, wlr_output);
}
/*
* Don't configure any non-desktop displays, such as VR headsets;
*/
if (wlr_output->non_desktop) {
wlr_log(WLR_DEBUG, "Not configuring non-desktop output");
return;
}
@ -231,11 +237,12 @@ output_config_apply(struct server *server,
wl_list_for_each(head, &config->heads, link) {
struct wlr_output *o = head->state.output;
struct output *output = output_from_wlr_output(server, o);
bool need_to_add = head->state.enabled && !o->enabled;
bool need_to_remove = !head->state.enabled && o->enabled;
bool output_enabled = head->state.enabled && !output->leased;
bool need_to_add = output_enabled && !o->enabled;
bool need_to_remove = !output_enabled && o->enabled;
wlr_output_enable(o, head->state.enabled);
if (head->state.enabled) {
wlr_output_enable(o, output_enabled);
if (output_enabled) {
/* Output specifc actions only */
if (head->state.mode) {
wlr_output_set_mode(o, head->state.mode);
@ -261,7 +268,7 @@ output_config_apply(struct server *server,
assert(output->scene_output);
}
if (head->state.enabled) {
if (output_enabled) {
wlr_output_layout_move(server->output_layout, o,
head->state.x, head->state.y);
}

21
src/server.c
View file

@ -151,16 +151,27 @@ handle_input_disinhibit(struct wl_listener *listener, void *data)
static void
handle_drm_lease_request(struct wl_listener *listener, void *data)
{
/*
* We only offer non-desktop outputs, but in the future we might want to do
* more logic here.
*/
struct wlr_drm_lease_request_v1 *req = data;
struct wlr_drm_lease_v1 *lease = wlr_drm_lease_request_v1_grant(req);
if (!lease) {
wlr_log(WLR_ERROR, "Failed to grant lease request");
wlr_drm_lease_request_v1_reject(req);
return;
}
for(size_t i = 0; i < req->n_connectors; ++i) {
struct output *output = req->connectors[i]->output->data;
if (!output) {
continue;
}
wlr_output_enable(output->wlr_output, false);
wlr_output_commit(output->wlr_output);
wlr_output_layout_remove(output->server->output_layout, output->wlr_output);
output->scene_output = NULL;
output->leased = true;
}
}