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backend/drm: rework struct wlr_drm_page_flip for multiple connectors
We need to store the CRTC ID for each connector at the time of the atomic commit, because future commits may change the CRTC/connector mapping.
This commit is contained in:
parent
805807fd5b
commit
fc4996d853
2 changed files with 65 additions and 16 deletions
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@ -422,33 +422,75 @@ static struct wlr_drm_layer *get_or_create_layer(struct wlr_drm_backend *drm,
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return layer;
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}
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static void drm_connector_set_pending_page_flip(struct wlr_drm_connector *conn,
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struct wlr_drm_page_flip *page_flip) {
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if (conn->pending_page_flip != NULL) {
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conn->pending_page_flip->conn = NULL;
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}
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conn->pending_page_flip = page_flip;
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}
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void drm_page_flip_destroy(struct wlr_drm_page_flip *page_flip) {
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if (!page_flip) {
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return;
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}
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wl_list_remove(&page_flip->link);
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free(page_flip->connectors);
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free(page_flip);
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}
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static struct wlr_drm_page_flip *drm_page_flip_create(struct wlr_drm_connector *conn) {
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static struct wlr_drm_page_flip *drm_page_flip_create(struct wlr_drm_backend *drm,
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const struct wlr_drm_device_state *state) {
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struct wlr_drm_page_flip *page_flip = calloc(1, sizeof(*page_flip));
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if (page_flip == NULL) {
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return NULL;
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}
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page_flip->conn = conn;
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wl_list_insert(&conn->backend->page_flips, &page_flip->link);
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page_flip->connectors_len = state->connectors_len;
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page_flip->connectors =
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calloc(page_flip->connectors_len, sizeof(page_flip->connectors[0]));
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if (page_flip->connectors == NULL) {
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free(page_flip);
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return NULL;
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}
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for (size_t i = 0; i < state->connectors_len; i++) {
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struct wlr_drm_connector *conn = state->connectors[i].connector;
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page_flip->connectors[i] = (struct wlr_drm_page_flip_connector){
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.connector = conn,
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.crtc_id = conn->crtc->id,
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};
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}
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wl_list_insert(&drm->page_flips, &page_flip->link);
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return page_flip;
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}
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static struct wlr_drm_connector *drm_page_flip_pop(
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struct wlr_drm_page_flip *page_flip, uint32_t crtc_id) {
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bool found = false;
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size_t i;
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for (i = 0; i < page_flip->connectors_len; i++) {
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if (page_flip->connectors[i].crtc_id == crtc_id) {
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found = true;
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break;
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}
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}
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if (!found) {
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return NULL;
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}
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struct wlr_drm_connector *conn = page_flip->connectors[i].connector;
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if (i != page_flip->connectors_len - 1) {
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page_flip->connectors[i] = page_flip->connectors[page_flip->connectors_len - 1];
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}
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page_flip->connectors_len--;
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return conn;
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}
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static void drm_connector_set_pending_page_flip(struct wlr_drm_connector *conn,
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struct wlr_drm_page_flip *page_flip) {
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if (conn->pending_page_flip != NULL) {
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struct wlr_drm_page_flip *page_flip = conn->pending_page_flip;
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for (size_t i = 0; i < page_flip->connectors_len; i++) {
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if (page_flip->connectors[i].connector == conn) {
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page_flip->connectors[i].connector = NULL;
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}
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}
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}
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conn->pending_page_flip = page_flip;
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}
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static void drm_connector_apply_commit(const struct wlr_drm_connector_state *state,
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struct wlr_drm_page_flip *page_flip) {
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struct wlr_drm_connector *conn = state->connector;
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@ -496,8 +538,7 @@ static bool drm_commit(struct wlr_drm_backend *drm,
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struct wlr_drm_page_flip *page_flip = NULL;
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if (flags & DRM_MODE_PAGE_FLIP_EVENT) {
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assert(state->connectors_len == 1);
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page_flip = drm_page_flip_create(state->connectors[0].connector);
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page_flip = drm_page_flip_create(drm, state);
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if (page_flip == NULL) {
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return false;
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}
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@ -1874,11 +1915,13 @@ static void handle_page_flip(int fd, unsigned seq,
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unsigned tv_sec, unsigned tv_usec, unsigned crtc_id, void *data) {
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struct wlr_drm_page_flip *page_flip = data;
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struct wlr_drm_connector *conn = page_flip->conn;
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struct wlr_drm_connector *conn = drm_page_flip_pop(page_flip, crtc_id);
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if (conn != NULL) {
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conn->pending_page_flip = NULL;
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}
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drm_page_flip_destroy(page_flip);
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if (page_flip->connectors_len == 0) {
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drm_page_flip_destroy(page_flip);
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}
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if (conn == NULL) {
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return;
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@ -159,7 +159,13 @@ struct wlr_drm_connector_state {
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*/
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struct wlr_drm_page_flip {
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struct wl_list link; // wlr_drm_connector.page_flips
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struct wlr_drm_connector *conn;
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struct wlr_drm_page_flip_connector *connectors;
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size_t connectors_len;
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};
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struct wlr_drm_page_flip_connector {
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uint32_t crtc_id;
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struct wlr_drm_connector *connector; // may be NULL
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};
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struct wlr_drm_connector {
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