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wayland output: add error handling for xdg shell 

Note that this does not go on to the next backend, because
attempt_wl_backend does not check if we have any output created.

We cannot test simply because (right now) a run of our examples will go
in this function twice, the first of which will (rightly?) return no
display but needs to return backend creation success.
This commit is contained in:
Dominique Martinet 2017-08-16 19:33:16 +02:00
parent 577d2f6fcd
commit 4f3d21c3ff
1 changed files with 21 additions and 8 deletions
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29
backend/wayland/output.c
View File

@ -137,7 +137,8 @@ static void wlr_wl_output_destroy(struct wlr_output *_output) {
}
eglDestroySurface(output->backend->egl.display, output->surface);
wl_egl_window_destroy(output->egl_window);
// xdg_surface/toplevel destroy
zxdg_toplevel_v6_destroy(output->xdg_toplevel);
zxdg_surface_v6_destroy(output->xdg_surface);
wl_surface_destroy(output->surface);
free(output);
}
@ -230,12 +231,23 @@ struct wlr_output *wlr_wl_output_create(struct wlr_backend *_backend) {
output->backend = backend;
// TODO: error handling
output->surface = wl_compositor_create_surface(backend->compositor);
if (!output->surface) {
wlr_log_errno(L_ERROR, "Could not create output surface");
goto error;
}
output->xdg_surface =
zxdg_shell_v6_get_xdg_surface(backend->shell, output->surface);
if (!output->xdg_surface) {
wlr_log_errno(L_ERROR, "Could not get xdg surface");
goto error;
}
output->xdg_toplevel =
zxdg_surface_v6_get_toplevel(output->xdg_surface);
if (!output->xdg_toplevel) {
wlr_log_errno(L_ERROR, "Could not get xdg toplevel");
goto error;
}
// class? app_id?
zxdg_toplevel_v6_set_title(output->xdg_toplevel, "sway-wl");
@ -253,8 +265,7 @@ struct wlr_output *wlr_wl_output_create(struct wlr_backend *_backend) {
output->egl_surface, output->egl_surface,
output->backend->egl.context)) {
wlr_log(L_ERROR, "eglMakeCurrent failed: %s", egl_error());
free(output);
return NULL;
goto error;
}
glViewport(0, 0, wlr_output->width, wlr_output->height);
@ -266,16 +277,18 @@ struct wlr_output *wlr_wl_output_create(struct wlr_backend *_backend) {
if (!eglSwapBuffers(output->backend->egl.display, output->egl_surface)) {
wlr_log(L_ERROR, "eglSwapBuffers failed: %s", egl_error());
free(output);
return NULL;
goto error;
}
if (list_add(backend->outputs, wlr_output) == -1) {
wlr_log(L_ERROR, "Allocation failed");
free(output);
return NULL;
goto error;
}
wlr_output_create_global(wlr_output, backend->local_display);
wl_signal_emit(&backend->backend.events.output_add, wlr_output);
return wlr_output;
error:
wlr_output_destroy(&output->wlr_output);
return NULL;
}