--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/tesseract/src/textord/blobgrid.cpp	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,45 @@
+///////////////////////////////////////////////////////////////////////
+// File:        blobgrid.cpp
+// Description: BBGrid of BLOBNBOX with useful BLOBNBOX-specific methods.
+// Copyright 2011 Google Inc. All Rights Reserved.
+// Author: rays@google.com (Ray Smith)
+// Created:     Sat Jun 11 10:30:01 PST 2011
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+///////////////////////////////////////////////////////////////////////
+
+#include "blobgrid.h"
+
+namespace tesseract {
+
+BlobGrid::BlobGrid(int gridsize, const ICOORD &bleft, const ICOORD &tright)
+    : BBGrid<BLOBNBOX, BLOBNBOX_CLIST, BLOBNBOX_C_IT>(gridsize, bleft, tright) {}
+
+// Destructor.
+// It is defined here, so the compiler can create a single vtable
+// instead of weak vtables in every compilation unit.
+BlobGrid::~BlobGrid() = default;
+
+// Inserts all the blobs from the given list, with x and y spreading,
+// without removing from the source list, so ownership remains with the
+// source list.
+void BlobGrid::InsertBlobList(BLOBNBOX_LIST *blobs) {
+  BLOBNBOX_IT blob_it(blobs);
+  for (blob_it.mark_cycle_pt(); !blob_it.cycled_list(); blob_it.forward()) {
+    BLOBNBOX *blob = blob_it.data();
+    if (!blob->joined_to_prev()) {
+      InsertBBox(true, true, blob);
+    }
+  }
+}
+
+} // namespace tesseract.