diff mupdf-source/thirdparty/leptonica/src/hmttemplate2.txt @ 2:b50eed0cc0ef upstream

ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/leptonica/src/hmttemplate2.txt	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,103 @@
+/*====================================================================*
+ -  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.
+ *====================================================================*/
+
+/*!
+ *     Low-level fast hit-miss transform with auto-generated sels
+ *
+ *      Dispatcher:
+--- *            l_int32   fhmtgen_low_*()
+ *
+ *      Static Low-level:
+--- *            void      fhmt_*_*()
+ */
+
+#include "allheaders.h"
+
+---                This file is:  hmttemplate2.txt
+---
+---      insert static protos here
+
+
+/*---------------------------------------------------------------------*
+ *                           Fast hmt dispatcher                       *
+ *---------------------------------------------------------------------*/
+/*!
+--- *  fhmtgen_low_*()
+ *
+ *       a dispatcher to appropriate low-level code
+ */
+l_int32
+---   fhmtgen_low_*(l_uint32  *datad,
+              l_int32    w,
+              l_int32    h,
+              l_int32    wpld,
+              l_uint32  *datas,
+              l_int32    wpls,
+              l_int32    index)
+{
+
+    switch (index)
+    {
+---    insert dispatcher code for fhmt* routines
+    }
+
+    return 0;
+}
+
+
+/*--------------------------------------------------------------------------*
+ *                 Low-level auto-generated static routines                 *
+ *--------------------------------------------------------------------------*/
+/*
+ *  N.B.  In all the low-level routines, the part of the image
+ *        that is accessed has been clipped by 32 pixels on
+ *        all four sides.  This is done in the higher level
+ *        code by redefining w and h smaller and by moving the
+ *        start-of-image pointers up to the beginning of this
+ *        interior rectangle.
+ */
+---   static void fhmt_*_*(l_uint32  *datad,
+         l_int32    w,
+         l_int32    h,
+         l_int32    wpld,
+         l_uint32  *datas,
+         l_int32    wpls)
+{
+l_int32    i;
+l_int32    j, pwpls;
+l_uint32  *sptr, *dptr;
+---     declare wplsN args as necessary ----------------------
+    pwpls = (l_uint32)(w + 31) / 32;  /* proper wpl of src */
+
+    for (i = 0; i < h; i++) {
+        sptr = datas + i * wpls;
+        dptr = datad + i * wpld;
+        for (j = 0; j < pwpls; j++, sptr++, dptr++) {
+---        insert barrel-op code for *dptr here ...
+        }
+    }
+}
+