--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/tesseract/src/wordrec/outlines.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,115 @@
+/******************************************************************************
+ *
+ * File:         outlines.h
+ * Description:  Combinatorial Splitter
+ * Author:       Mark Seaman, OCR Technology
+ *
+ * (c) Copyright 1989, Hewlett-Packard Company.
+ ** 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.
+ *
+ *****************************************************************************/
+
+#ifndef OUTLINES_H
+#define OUTLINES_H
+
+#include <cmath>     // for abs
+#include "blobs.h"   // for TPOINT
+#include "params.h"  // for IntParam
+#include "wordrec.h" // for Wordrec
+
+/*----------------------------------------------------------------------
+              C o n s t a n t s
+----------------------------------------------------------------------*/
+#define LARGE_DISTANCE 100000 /* Used for closest dist */
+#define MIN_BLOB_SIZE 10      /* Big units */
+#define MAX_ASPECT_RATIO 2.5  /* Widest character */
+
+/*----------------------------------------------------------------------
+              M a c r o s
+----------------------------------------------------------------------*/
+/**********************************************************************
+ * same_point
+ *
+ * Return true if the point values are the same. The parameters must
+ * be of type POINT.
+ **********************************************************************/
+#define same_point(p1, p2) \
+  ((abs(p1.x - p2.x) < chop_same_distance) && (abs(p1.y - p2.y) < chop_same_distance))
+
+/**********************************************************************
+ * dist_square
+ *
+ * Return the square of the distance between these two points.  The
+ * parameters must be of type POINT.
+ **********************************************************************/
+
+#define dist_square(p1, p2) ((p2.x - p1.x) * (p2.x - p1.x) + (p2.y - p1.y) * (p2.y - p1.y))
+
+/**********************************************************************
+ * closest
+ *
+ * The expression provides the EDGEPT that is closest to the point in
+ * question.  All three parameters must be of type EDGEPT.
+ **********************************************************************/
+
+#define closest(test_p, p1, p2)                                                                   \
+  (p1 ? (p2 ? ((dist_square(test_p->pos, p1->pos) < dist_square(test_p->pos, p2->pos)) ? p1 : p2) \
+            : p1)                                                                                 \
+      : p2)
+
+/**********************************************************************
+ * edgept_dist
+ *
+ * Return the distance (squared) between the two edge points.
+ **********************************************************************/
+
+#define edgept_dist(p1, p2) (dist_square((p1)->pos, (p2)->pos))
+
+/**********************************************************************
+ * is_exterior_point
+ *
+ * Return true if the point supplied is an exterior projection from the
+ * outline.
+ **********************************************************************/
+
+#define is_exterior_point(edge, point)                                                   \
+  (same_point(edge->prev->pos, point->pos) || same_point(edge->next->pos, point->pos) || \
+   (angle_change(edge->prev, edge, edge->next) - angle_change(edge->prev, edge, point) > 20))
+
+/**********************************************************************
+ * is_equal
+ *
+ * Return true if the POINTs are equal.
+ **********************************************************************/
+
+#define is_equal(p1, p2) (((p1).x == (p2).x) && ((p1).y == (p2).y))
+
+/**********************************************************************
+ * is_on_line
+ *
+ * Return true if the point is on the line segment between the two end
+ * points.  The two end points are included as part of the  line.  The
+ * parameters must be of type POINT.
+ **********************************************************************/
+
+#define is_on_line(p, p0, p1) \
+  (within_range((p).x, (p0).x, (p1).x) && within_range((p).y, (p0).y, (p1).y))
+
+/**********************************************************************
+ * within_range
+ *
+ * Return true if the first number is in between the second two numbers.
+ * Return false otherwise.
+ **********************************************************************/
+
+#define within_range(x, x0, x1) (((x0 <= x) && (x <= x1)) || ((x1 <= x) && (x <= x0)))
+
+#endif