backend/drm: fill scratch wlr_output_state for set_mode
Populate the wlr_output_state when setting a mode. This will allow drm_connector_set_mode to stop relying on ephemeral fields in wlr_drm_crtc. Also drm_connector_set_mode will be able to apply both a new buffer and a new mode atomically.
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@ -118,12 +118,17 @@ static void handle_session_active(struct wl_listener *listener, void *data) {
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struct wlr_drm_connector *conn;
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wl_list_for_each(conn, &drm->outputs, link) {
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struct wlr_output_state state = {0};
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struct wlr_output_mode *mode = NULL;
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if (conn->output.enabled && conn->output.current_mode != NULL) {
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drm_connector_set_mode(conn, &state, conn->output.current_mode);
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} else {
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drm_connector_set_mode(conn, &state, NULL);
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mode = conn->output.current_mode;
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}
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struct wlr_output_state state = {
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.committed = WLR_OUTPUT_STATE_MODE | WLR_OUTPUT_STATE_ENABLED,
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.enabled = mode != NULL,
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.mode_type = WLR_OUTPUT_STATE_MODE_FIXED,
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.mode = mode,
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};
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drm_connector_set_mode(conn, &state, mode);
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}
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} else {
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wlr_log(WLR_INFO, "DRM fd paused");
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@ -735,7 +735,12 @@ static void attempt_enable_needs_modeset(struct wlr_drm_backend *drm) {
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conn->desired_enabled) {
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wlr_drm_conn_log(conn, WLR_DEBUG,
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"Output has a desired mode and a CRTC, attempting a modeset");
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struct wlr_output_state state = {0};
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struct wlr_output_state state = {
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.committed = WLR_OUTPUT_STATE_MODE | WLR_OUTPUT_STATE_ENABLED,
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.enabled = true,
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.mode_type = WLR_OUTPUT_STATE_MODE_FIXED,
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.mode = conn->desired_mode,
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};
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drm_connector_set_mode(conn, &state, conn->desired_mode);
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}
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}
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@ -1056,7 +1061,10 @@ static void dealloc_crtc(struct wlr_drm_connector *conn) {
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conn->crtc->pending_modeset = true;
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conn->crtc->pending.active = false;
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struct wlr_output_state state = {0};
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struct wlr_output_state state = {
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.committed = WLR_OUTPUT_STATE_ENABLED,
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.enabled = false,
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};
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if (!drm_crtc_commit(conn, &state, 0)) {
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// On GPU unplug, disabling the CRTC can fail with EPERM
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wlr_drm_conn_log(conn, WLR_ERROR, "Failed to disable CRTC %"PRIu32,
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@ -1185,7 +1193,10 @@ static void realloc_crtcs(struct wlr_drm_backend *drm) {
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struct wlr_drm_mode *mode =
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(struct wlr_drm_mode *)conn->output.current_mode;
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struct wlr_output_state state = {0};
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struct wlr_output_state state = {
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.committed = WLR_OUTPUT_STATE_ENABLED,
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.enabled = true,
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};
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if (!drm_connector_init_renderer(conn, &state, mode)) {
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wlr_drm_conn_log(conn, WLR_ERROR, "Failed to initialize renderer");
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wlr_output_update_enabled(&conn->output, false);
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