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backend/multi: add assertions

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This commit is contained in:
emersion 2018-09-17 21:55:01 +02:00
parent 7bcf0d9599
commit 6c05f17a25
1 changed files with 13 additions and 10 deletions
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23
backend/multi/backend.c
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@ -17,8 +17,14 @@ struct subbackend_state {
struct wl_list link;
};
static struct wlr_multi_backend *multi_backend_from_backend(
struct wlr_backend *wlr_backend) {
assert(wlr_backend_is_multi(wlr_backend));
return (struct wlr_multi_backend *)wlr_backend;
}
static bool multi_backend_start(struct wlr_backend *wlr_backend) {
struct wlr_multi_backend *backend = (struct wlr_multi_backend *)wlr_backend;
struct wlr_multi_backend *backend = multi_backend_from_backend(wlr_backend);
struct subbackend_state *sub;
wl_list_for_each(sub, &backend->backends, link) {
if (!wlr_backend_start(sub->backend)) {
@ -38,7 +44,7 @@ static void subbackend_state_destroy(struct subbackend_state *sub) {
}
static void multi_backend_destroy(struct wlr_backend *wlr_backend) {
struct wlr_multi_backend *backend = (struct wlr_multi_backend *)wlr_backend;
struct wlr_multi_backend *backend = multi_backend_from_backend(wlr_backend);
wl_list_remove(&backend->display_destroy.link);
@ -54,7 +60,8 @@ static void multi_backend_destroy(struct wlr_backend *wlr_backend) {
static struct wlr_renderer *multi_backend_get_renderer(
struct wlr_backend *backend) {
struct wlr_multi_backend *multi = (struct wlr_multi_backend *)backend;
struct wlr_multi_backend *multi = multi_backend_from_backend(backend);
struct subbackend_state *sub;
wl_list_for_each(sub, &multi->backends, link) {
struct wlr_renderer *rend = wlr_backend_get_renderer(sub->backend);
@ -132,8 +139,7 @@ static struct subbackend_state *multi_backend_get_subbackend(struct wlr_multi_ba
bool wlr_multi_backend_add(struct wlr_backend *_multi,
struct wlr_backend *backend) {
assert(wlr_backend_is_multi(_multi));
struct wlr_multi_backend *multi = (struct wlr_multi_backend *)_multi;
struct wlr_multi_backend *multi = multi_backend_from_backend(_multi);
if (multi_backend_get_subbackend(multi, backend)) {
// already added
@ -174,8 +180,7 @@ bool wlr_multi_backend_add(struct wlr_backend *_multi,
void wlr_multi_backend_remove(struct wlr_backend *_multi,
struct wlr_backend *backend) {
assert(wlr_backend_is_multi(_multi));
struct wlr_multi_backend *multi = (struct wlr_multi_backend *)_multi;
struct wlr_multi_backend *multi = multi_backend_from_backend(_multi);
struct subbackend_state *sub =
multi_backend_get_subbackend(multi, backend);
@ -187,9 +192,7 @@ void wlr_multi_backend_remove(struct wlr_backend *_multi,
}
struct wlr_session *wlr_multi_get_session(struct wlr_backend *_backend) {
assert(wlr_backend_is_multi(_backend));
struct wlr_multi_backend *backend = (struct wlr_multi_backend *)_backend;
struct wlr_multi_backend *backend = multi_backend_from_backend(_backend);
struct subbackend_state *sub;
wl_list_for_each(sub, &backend->backends, link) {
if (wlr_backend_is_drm(sub->backend)) {