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Merge pull request #1268 from emersion/drm-connector-disappeared

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backend/drm: don't free connector immediately
This commit is contained in:
Drew DeVault 2018-09-28 04:23:10 -05:00 committed by GitHub
commit 936ec02266
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 18 additions and 5 deletions
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19
backend/drm/drm.c
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@ -709,6 +709,7 @@ static bool drm_connector_move_cursor(struct wlr_output *output,
static void drm_connector_destroy(struct wlr_output *output) {
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
drm_connector_cleanup(conn);
drmModeFreeCrtc(conn->old_crtc);
wl_event_source_remove(conn->retry_pageflip);
wl_list_remove(&conn->link);
free(conn);
@ -1088,10 +1089,11 @@ void scan_drm_connectors(struct wlr_drm_backend *drm) {
wlr_log(WLR_INFO, "'%s' disappeared", conn->output.name);
drm_connector_cleanup(conn);
drmModeFreeCrtc(conn->old_crtc);
wl_event_source_remove(conn->retry_pageflip);
wl_list_remove(&conn->link);
free(conn);
if (conn->pageflip_pending) {
conn->state = WLR_DRM_CONN_DISAPPEARED;
} else {
wlr_output_destroy(&conn->output);
}
}
bool changed_outputs[wl_list_length(&drm->outputs)];
@ -1133,6 +1135,12 @@ static void page_flip_handler(int fd, unsigned seq,
get_drm_backend_from_backend(conn->output.backend);
conn->pageflip_pending = false;
if (conn->state == WLR_DRM_CONN_DISAPPEARED) {
wlr_output_destroy(&conn->output);
return;
}
if (conn->state != WLR_DRM_CONN_CONNECTED || conn->crtc == NULL) {
return;
}
@ -1193,7 +1201,6 @@ void restore_drm_outputs(struct wlr_drm_backend *drm) {
drmModeSetCrtc(drm->fd, crtc->crtc_id, crtc->buffer_id, crtc->x, crtc->y,
&conn->id, 1, &crtc->mode);
drmModeFreeCrtc(crtc);
}
}
@ -1248,6 +1255,8 @@ static void drm_connector_cleanup(struct wlr_drm_connector *conn) {
break;
case WLR_DRM_CONN_DISCONNECTED:
break;
case WLR_DRM_CONN_DISAPPEARED:
return; // don't change state
}
conn->state = WLR_DRM_CONN_DISCONNECTED;

4
include/backend/drm/drm.h
View file

@ -104,10 +104,14 @@ struct wlr_drm_backend {
};
enum wlr_drm_connector_state {
// Connector is available but no output is plugged in
WLR_DRM_CONN_DISCONNECTED,
// An output just has been plugged in and is waiting for a modeset
WLR_DRM_CONN_NEEDS_MODESET,
WLR_DRM_CONN_CLEANUP,
WLR_DRM_CONN_CONNECTED,
// Connector disappeared, waiting for being destroyed on next page-flip
WLR_DRM_CONN_DISAPPEARED,
};
struct wlr_drm_mode {