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wlr_mirror: replace wlr_output->mirror_dst with wlr_addon

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This commit is contained in:
Alexander Courtis 2022-01-10 11:50:40 +11:00
parent 392dde7bed
commit eac618687b
5 changed files with 53 additions and 6 deletions
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6
include/wlr/types/wlr_mirror_v1.h
View file

@ -11,6 +11,7 @@
#include <wayland-client-protocol.h>
#include <wayland-server-core.h>
#include <wlr/util/addon.h>
#include <wlr/util/box.h>
/**
@ -119,5 +120,10 @@ void wlr_mirror_v1_request_blank(struct wlr_mirror_v1 *mirror);
void wlr_mirror_v1_request_box(struct wlr_mirror_v1 *mirror,
struct wlr_output *output_src, struct wlr_box box);
/**
* Output is in use as a dst by another mirror session.
*/
bool wlr_mirror_v1_output_is_dst(struct wlr_output *output);
#endif

3
include/wlr/types/wlr_output.h
View file

@ -151,9 +151,6 @@ struct wlr_output {
// Commit sequence number. Incremented on each commit, may overflow.
uint32_t commit_seq;
// dst for an active wlr_mirror_v1 session
bool mirror_dst;
struct {
// Request to render a frame
struct wl_signal frame;

3
include/wlr/util/addon.h
View file

@ -40,4 +40,7 @@ void wlr_addon_finish(struct wlr_addon *addon);
struct wlr_addon *wlr_addon_find(struct wlr_addon_set *set, const void *owner,
const struct wlr_addon_interface *impl);
void wlr_addon_find_all(struct wl_array *all, struct wlr_addon_set *set,
const struct wlr_addon_interface *impl);
#endif

34
types/wlr_mirror_v1.c
View file

@ -41,6 +41,8 @@ struct wlr_mirror_v1_state {
struct wlr_mirror_v1_params params;
struct wlr_addon output_dst_addon;
struct wlr_output *output_src; // mutable
struct wlr_output *output_dst;
@ -406,6 +408,23 @@ static void output_dst_handle_destroy(struct wl_listener *listener, void *data)
* END wlr_mirror handler functions
*/
/**
* BEGIN addons
*/
static void output_dst_addon_handle_destroy(struct wlr_addon *addon) {
// wlr_mirror_v1_destroy finishes addon, following output_dst_handle_destroy
}
static const struct wlr_addon_interface output_dst_addon_impl = {
.name = "wlr_mirror_output_dst",
.destroy = output_dst_addon_handle_destroy,
};
/**
* END addons
*/
/**
* BEGIN public functions
*/
@ -415,7 +434,7 @@ struct wlr_mirror_v1 *wlr_mirror_v1_create(struct wlr_mirror_v1_params *params)
wlr_log(WLR_ERROR, "Mirror dst '%s' not enabled", params->output_dst->name);
return NULL;
}
if (params->output_dst->mirror_dst) {
if (wlr_mirror_v1_output_is_dst(params->output_dst)) {
wlr_log(WLR_ERROR, "Mirror dst '%s' in use by another mirror session",
params->output_dst->name);
return NULL;
@ -487,7 +506,8 @@ struct wlr_mirror_v1 *wlr_mirror_v1_create(struct wlr_mirror_v1_params *params)
state->needs_blank = true;
schedule_frame_dst(state);
state->output_dst->mirror_dst = true;
wlr_addon_init(&state->output_dst_addon, &state->output_dst->addons, mirror,
&output_dst_addon_impl);
return mirror;
}
@ -532,7 +552,7 @@ void wlr_mirror_v1_destroy(struct wlr_mirror_v1 *mirror) {
}
// the compositor may reclaim dst
state->output_dst->mirror_dst = false;
wlr_addon_finish(&state->output_dst_addon);
// end the user's mirror "session"
wlr_signal_emit_safe(&mirror->events.destroy, mirror);
@ -584,6 +604,14 @@ void wlr_mirror_v1_request_box(struct wlr_mirror_v1 *mirror,
state->stats.requested_boxes++;
}
bool wlr_mirror_v1_output_is_dst(struct wlr_output *output) {
struct wl_array addons;
wlr_addon_find_all(&addons, &output->addons, &output_dst_addon_impl);
bool is_dst = addons.size > 0;
wl_array_release(&addons);
return is_dst;
}
/**
* END public functions
*/

13
util/addon.c
View file

@ -45,3 +45,16 @@ struct wlr_addon *wlr_addon_find(struct wlr_addon_set *set, const void *owner,
}
return NULL;
}
void wlr_addon_find_all(struct wl_array *all, struct wlr_addon_set *set,
const struct wlr_addon_interface *impl) {
wl_array_init(all);
struct wlr_addon *addon;
wl_list_for_each(addon, &set->addons, link) {
if (addon->impl == impl) {
struct wlr_addon **addon_ptr = wl_array_add(all, sizeof(addon_ptr));
*addon_ptr = addon;
}
}
}