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backend/drm: use a single commit to restore state after VT switch

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This commit is contained in:
Simon Ser 2024-02-14 18:34:40 +01:00
parent 0ae9329f04
commit 0a60d5816c
1 changed files with 40 additions and 9 deletions
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49
backend/drm/drm.c
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@ -1792,11 +1792,9 @@ void scan_drm_leases(struct wlr_drm_backend *drm) {
static void build_current_connector_state(struct wlr_output_state *state,
struct wlr_drm_connector *conn) {
bool enabled = conn->status != DRM_MODE_DISCONNECTED && conn->output.enabled;
wlr_output_state_init(state);
wlr_output_state_set_enabled(state, enabled);
if (!enabled) {
wlr_output_state_set_enabled(state, conn->output.enabled);
if (!conn->output.enabled) {
return;
}
@ -1830,6 +1828,12 @@ static bool skip_reset_for_restore(struct wlr_drm_backend *drm) {
if (crtc != NULL && conn->crtc != crtc) {
return false;
}
if (!conn->output.enabled && crtc != NULL) {
return false;
}
if (conn->output.enabled && conn->status == DRM_MODE_DISCONNECTED) {
return false;
}
}
for (size_t i = 0; i < drm->num_planes; i++) {
@ -1881,15 +1885,42 @@ void restore_drm_device(struct wlr_drm_backend *drm) {
wlr_log(WLR_ERROR, "Failed to reset state after VT switch");
}
size_t states_cap = wl_list_length(&drm->connectors);
struct wlr_output_state *output_states = calloc(states_cap, sizeof(output_states[0]));
struct wlr_drm_connector_state *conn_states = calloc(states_cap, sizeof(conn_states[0]));
if (output_states == NULL || conn_states == NULL) {
goto out_states;
}
size_t states_len = 0;
struct wlr_drm_connector *conn;
wl_list_for_each(conn, &drm->connectors, link) {
struct wlr_output_state state;
build_current_connector_state(&state, conn);
if (!drm_connector_commit_state(conn, &state)) {
wlr_drm_conn_log(conn, WLR_ERROR, "Failed to restore state after VT switch");
if (conn->status == DRM_MODE_DISCONNECTED || !conn->output.enabled) {
continue; // already disabled above
}
wlr_output_state_finish(&state);
build_current_connector_state(&output_states[states_len], conn);
drm_connector_state_init(&conn_states[states_len], conn, &output_states[states_len]);
states_len++;
}
struct wlr_drm_device_state dev_state = {
.modeset = true,
.connectors = conn_states,
.connectors_len = states_len,
};
if (!drm_commit(drm, &dev_state, DRM_MODE_PAGE_FLIP_EVENT, false)) {
wlr_log(WLR_ERROR, "Failed to restore state after VT switch");
}
for (size_t i = 0; i < states_len; i++) {
drm_connector_state_finish(&conn_states[i]);
wlr_output_state_finish(&output_states[i]);
}
out_states:
free(output_states);
free(conn_states);
}
static int mhz_to_nsec(int mhz) {