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backend: return wlr_session in wlr_backend_autocreate() call

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Up until now, wlr_backend_autocreate() created the wlr_session and
then stuffed it into struct wlr_multi_backend so that compositors
can grab it later.

This is an abuse of wlr_multi_backend and the wlr_backend API:
wlr_backend_get_session() and wlr_multi_backend.session only exist
to accomodate the needs of wlr_backend_autocreate(). What's more,
the DRM and libinput backends don't implement
wlr_backend_impl.get_session.

Instead, return the struct wlr_session to the compositor in the
wlr_backend_autocreate() call. wlr_backend_get_session() will be
removed in the next commit.
This commit is contained in:
Simon Ser 2022-11-03 18:25:05 +01:00 • committed by Alexander Orzechowski
parent 265439600e
commit 41b7acbab7
13 changed files with 57 additions and 50 deletions
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2
tinywl/tinywl.c
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@ -828,7 +828,7 @@ int main(int argc, char *argv[]) {
* output hardware. The autocreate option will choose the most suitable
* backend based on the current environment, such as opening an X11 window
* if an X11 server is running. */
server.backend = wlr_backend_autocreate(server.wl_display);
server.backend = wlr_backend_autocreate(server.wl_display, NULL);
if (server.backend == NULL) {
wlr_log(WLR_ERROR, "failed to create wlr_backend");
return 1;