backend/drm: populate cursor plane's current_fb
The set_cursor() hook is a little bit special: it's not really synchronized to commit() or test(). Once set_cursor() returns true, the new cursor is part of the current state. This fixes a state where wlr_drm_connector.cursor_enabled is true but there is no FB available. This is triggered by set_cursor() followed by a failed commit(), which resets pending_fb. We should definitely fix the output interface to make the cursor part of the pending state, but that's a more involved change.
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@ -920,7 +920,7 @@ static bool drm_connector_set_cursor(struct wlr_output *output,
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local_buf = wlr_buffer_lock(buffer);
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}
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bool ok = drm_fb_import(&plane->pending_fb, drm, local_buf,
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bool ok = drm_fb_import(&plane->current_fb, drm, local_buf,
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&plane->formats);
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wlr_buffer_unlock(local_buf);
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if (!ok) {
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