--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/leptonica/src/gplot.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,96 @@
+/*====================================================================*
+ -  Copyright (C) 2001 Leptonica.  All rights reserved.
+ -
+ -  Redistribution and use in source and binary forms, with or without
+ -  modification, are permitted provided that the following conditions
+ -  are met:
+ -  1. Redistributions of source code must retain the above copyright
+ -     notice, this list of conditions and the following disclaimer.
+ -  2. Redistributions in binary form must reproduce the above
+ -     copyright notice, this list of conditions and the following
+ -     disclaimer in the documentation and/or other materials
+ -     provided with the distribution.
+ -
+ -  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ -  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ -  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ -  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL ANY
+ -  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ -  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ -  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ -  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ -  OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ -  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ -  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *====================================================================*/
+
+#ifndef  LEPTONICA_GPLOT_H
+#define  LEPTONICA_GPLOT_H
+
+/*!
+ * \file gplot.h
+ *
+ * <pre>
+ *   Data structures and parameters for generating gnuplot files
+ *
+ *   We used to support X11 output, but recent versions of gnuplot do not
+ *   support the X11 terminal.  To get display to your screen, use
+ *   GPLOT_PNG output; e.g.,
+ *       gplotSimple1(na, GPLOT_PNG, "/tmp/someroot", ...);
+ *       l_fileDisplay("/tmp/someroot.png", ...);
+ * </pre>
+ */
+
+#define  GPLOT_VERSION_NUMBER    1
+
+#define  NUM_GPLOT_STYLES  5
+enum GPLOT_STYLE {
+    GPLOT_LINES       = 0,
+    GPLOT_POINTS      = 1,
+    GPLOT_IMPULSES    = 2,
+    GPLOT_LINESPOINTS = 3,
+    GPLOT_DOTS        = 4
+};
+
+#define  NUM_GPLOT_OUTPUTS  6
+enum GPLOT_OUTPUT {
+    GPLOT_NONE  = 0,
+    GPLOT_PNG   = 1,
+    GPLOT_PS    = 2,
+    GPLOT_EPS   = 3,
+    GPLOT_LATEX = 4,
+    GPLOT_PNM   = 5,
+};
+
+enum GPLOT_SCALING {
+    GPLOT_LINEAR_SCALE  = 0,   /*!< default */
+    GPLOT_LOG_SCALE_X   = 1,
+    GPLOT_LOG_SCALE_Y   = 2,
+    GPLOT_LOG_SCALE_X_Y = 3
+};
+
+extern const char  *gplotstylenames[];  /*!< used in gnuplot cmd file */
+extern const char  *gplotfileoutputs[]; /*!< used in simple file input */
+
+/*! Data structure for generating gnuplot files */
+struct GPlot
+{
+    char          *rootname;   /*!< for cmd, data, output            */
+    char          *cmdname;    /*!< command file name                */
+    struct Sarray *cmddata;    /*!< command file contents            */
+    struct Sarray *datanames;  /*!< data file names                  */
+    struct Sarray *plotdata;   /*!< plot data (1 string/file)        */
+    struct Sarray *plotlabels; /*!< label for each individual plot   */
+    struct Numa   *plotstyles; /*!< plot style for individual plots  */
+    l_int32        nplots;     /*!< current number of plots          */
+    char          *outname;    /*!< output file name                 */
+    l_int32        outformat;  /*!< GPLOT_OUTPUT values              */
+    l_int32        scaling;    /*!< GPLOT_SCALING values             */
+    char          *title;      /*!< optional                         */
+    char          *xlabel;     /*!< optional x axis label            */
+    char          *ylabel;     /*!< optional y axis label            */
+};
+typedef struct GPlot  GPLOT;
+
+
+#endif /* LEPTONICA_GPLOT_H */