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output: introduce wlr_output_lock_attach_render

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This allows screen shooters and screen grabbers to ensure rendering will be
used instead of direct scan-out.
This commit is contained in:
Simon Ser 2019-05-25 18:51:28 +03:00 • committed by Drew DeVault
parent e554c593f9
commit 6c659da98b
4 changed files with 28 additions and 0 deletions
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2
types/wlr_export_dmabuf_v1.c
View file

@ -34,6 +34,7 @@ static void frame_destroy(struct wlr_export_dmabuf_frame_v1 *frame) {
if (frame == NULL) {
return;
}
wlr_output_lock_attach_render(frame->output, false);
if (frame->cursor_locked) {
wlr_output_lock_software_cursors(frame->output, false);
}
@ -126,6 +127,7 @@ static void manager_handle_capture_output(struct wl_client *client,
return;
}
wlr_output_lock_attach_render(frame->output, true);
if (overlay_cursor) {
wlr_output_lock_software_cursors(frame->output, true);
frame->cursor_locked = true;

15
types/wlr_output.c
View file

@ -497,6 +497,9 @@ bool wlr_output_attach_buffer(struct wlr_output *output,
if (!output->impl->attach_buffer) {
return false;
}
if (output->attach_render_locks > 0) {
return false;
}
// If the output has at least one software cursor, refuse to attach the
// buffer
@ -614,6 +617,18 @@ struct wlr_output *wlr_output_from_resource(struct wl_resource *resource) {
return wl_resource_get_user_data(resource);
}
void wlr_output_lock_attach_render(struct wlr_output *output, bool lock) {
if (lock) {
++output->attach_render_locks;
} else {
assert(output->attach_render_locks > 0);
--output->attach_render_locks;
}
wlr_log(WLR_DEBUG, "%s direct scan-out on output '%s' (locks: %d)",
lock ? "Disabling" : "Enabling", output->name,
output->attach_render_locks);
}
static void output_cursor_damage_whole(struct wlr_output_cursor *cursor);
void wlr_output_lock_software_cursors(struct wlr_output *output, bool lock) {

2
types/wlr_screencopy_v1.c
View file

@ -23,6 +23,7 @@ static void frame_destroy(struct wlr_screencopy_frame_v1 *frame) {
if (frame == NULL) {
return;
}
wlr_output_lock_attach_render(frame->output, false);
if (frame->cursor_locked) {
wlr_output_lock_software_cursors(frame->output, false);
}
@ -143,6 +144,7 @@ static void frame_handle_copy(struct wl_client *client,
output->needs_frame = true;
wlr_output_schedule_frame(output);
wlr_output_lock_attach_render(output, true);
if (frame->overlay_cursor) {
wlr_output_lock_software_cursors(output, true);
frame->cursor_locked = true;