mirrors/wlroots
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/wlroots/wlroots.git synced 2025-11-03 09:01:40 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

Set crtc field when scanning for DRM connectors

Browse source 
and always use it when matching CRTCs with connectors.
Fix deactivated monitors check.
This commit is contained in:
Versus Void 2017-10-22 21:38:30 +00:00
parent 3c31209a97
commit 549777ca19
1 changed files with 39 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

57
backend/drm/drm.c
View file

@ -314,7 +314,8 @@ static void realloc_crtcs(struct wlr_drm_backend *drm,
struct wlr_drm_connector *conn, bool *changed_outputs) {
uint32_t crtc[drm->num_crtcs];
uint32_t crtc_res[drm->num_crtcs];
uint32_t possible_crtc[wl_list_length(&drm->outputs)];
ssize_t num_outputs = wl_list_length(&drm->outputs);
uint32_t possible_crtc[num_outputs];
for (size_t i = 0; i < drm->num_crtcs; ++i) {
crtc[i] = UNMATCHED;
@ -330,35 +331,41 @@ static void realloc_crtcs(struct wlr_drm_backend *drm,
index = i;
}
if (c->state != WLR_DRM_CONN_CONNECTED) {
continue;
if (c->crtc) {
crtc[c->crtc - drm->crtcs] = i;
}
if (c->state == WLR_DRM_CONN_CONNECTED) {
possible_crtc[i] = c->possible_crtc;
}
possible_crtc[i] = c->possible_crtc;
crtc[c->crtc - drm->crtcs] = i;
}
assert(index != -1);
possible_crtc[index] = conn->possible_crtc;
match_obj(wl_list_length(&drm->outputs), possible_crtc, drm->num_crtcs,
crtc, crtc_res);
match_obj(wl_list_length(&drm->outputs), possible_crtc,
drm->num_crtcs, crtc, crtc_res);
bool matched = false;
bool matched[num_outputs];
memset(matched, false, sizeof(matched));
for (size_t i = 0; i < drm->num_crtcs; ++i) {
// We don't want any of the current monitors to be deactivated.
if (crtc[i] != UNMATCHED && crtc_res[i] == UNMATCHED) {
return;
}
if (crtc_res[i] == index) {
matched = true;
if (crtc_res[i] != UNMATCHED) {
matched[crtc_res[i]] = true;
}
}
// There is no point doing anything if this monitor doesn't get activated
if (!matched) {
if (!matched[index]) {
return;
}
for (size_t i = 0; i < drm->num_crtcs; ++i) {
// We don't want any of the current monitors to be deactivated.
if (crtc[i] != UNMATCHED && !matched[crtc[i]]) {
return;
}
}
changed_outputs[index] = true;
for (size_t i = 0; i < drm->num_crtcs; ++i) {
@ -711,6 +718,9 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *drm) {
wlr_log_errno(L_ERROR, "Failed to get DRM connector");
continue;
}
drmModeEncoder *curr_enc = drmModeGetEncoder(drm->fd,
drm_conn->encoder_id);
int index = -1;
struct wlr_drm_connector *c, *wlr_conn = NULL;
wl_list_for_each(c, &drm->outputs, link) {
@ -720,10 +730,12 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *drm) {
break;
}
}
if (!wlr_conn) {
wlr_conn = calloc(1, sizeof(*wlr_conn));
if (!wlr_conn) {
wlr_log_errno(L_ERROR, "Allocation failed");
drmModeFreeEncoder(curr_enc);
drmModeFreeConnector(drm_conn);
continue;
}
@ -737,11 +749,8 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *drm) {
wlr_conn->state = WLR_DRM_CONN_DISCONNECTED;
wlr_conn->id = drm_conn->connector_id;
drmModeEncoder *curr_enc = drmModeGetEncoder(drm->fd,
drm_conn->encoder_id);
if (curr_enc) {
wlr_conn->old_crtc = drmModeGetCrtc(drm->fd, curr_enc->crtc_id);
drmModeFreeEncoder(curr_enc);
}
wlr_conn->output.phys_width = drm_conn->mmWidth;
@ -767,6 +776,17 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *drm) {
seen[index] = true;
}
if (curr_enc) {
for (size_t i = 0; i < drm->num_crtcs; ++i) {
if (drm->crtcs[i].id == curr_enc->crtc_id) {
wlr_conn->crtc = &drm->crtcs[i];
break;
}
}
} else {
wlr_conn->crtc = NULL;
}
if (wlr_conn->state == WLR_DRM_CONN_DISCONNECTED &&
drm_conn->connection == DRM_MODE_CONNECTED) {
@ -802,6 +822,7 @@ void wlr_drm_scan_connectors(struct wlr_drm_backend *drm) {
wlr_drm_connector_cleanup(wlr_conn);
}
drmModeFreeEncoder(curr_enc);
drmModeFreeConnector(drm_conn);
}