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

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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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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /*====================================================================*
2 - Copyright (C) 2001 Leptonica. All rights reserved.
3 -
4 - Redistribution and use in source and binary forms, with or without
5 - modification, are permitted provided that the following conditions
6 - are met:
7 - 1. Redistributions of source code must retain the above copyright
8 - notice, this list of conditions and the following disclaimer.
9 - 2. Redistributions in binary form must reproduce the above
10 - copyright notice, this list of conditions and the following
11 - disclaimer in the documentation and/or other materials
12 - provided with the distribution.
13 -
14 - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15 - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
18 - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
23 - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24 - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *====================================================================*/
26
27 /*!
28 * Low-level fast hit-miss transform with auto-generated sels
29 *
30 * Dispatcher:
31 --- * l_int32 fhmtgen_low_*()
32 *
33 * Static Low-level:
34 --- * void fhmt_*_*()
35 */
36
37 #include "allheaders.h"
38
39 --- This file is: hmttemplate2.txt
40 ---
41 --- insert static protos here
42
43
44 /*---------------------------------------------------------------------*
45 * Fast hmt dispatcher *
46 *---------------------------------------------------------------------*/
47 /*!
48 --- * fhmtgen_low_*()
49 *
50 * a dispatcher to appropriate low-level code
51 */
52 l_int32
53 --- fhmtgen_low_*(l_uint32 *datad,
54 l_int32 w,
55 l_int32 h,
56 l_int32 wpld,
57 l_uint32 *datas,
58 l_int32 wpls,
59 l_int32 index)
60 {
61
62 switch (index)
63 {
64 --- insert dispatcher code for fhmt* routines
65 }
66
67 return 0;
68 }
69
70
71 /*--------------------------------------------------------------------------*
72 * Low-level auto-generated static routines *
73 *--------------------------------------------------------------------------*/
74 /*
75 * N.B. In all the low-level routines, the part of the image
76 * that is accessed has been clipped by 32 pixels on
77 * all four sides. This is done in the higher level
78 * code by redefining w and h smaller and by moving the
79 * start-of-image pointers up to the beginning of this
80 * interior rectangle.
81 */
82 --- static void fhmt_*_*(l_uint32 *datad,
83 l_int32 w,
84 l_int32 h,
85 l_int32 wpld,
86 l_uint32 *datas,
87 l_int32 wpls)
88 {
89 l_int32 i;
90 l_int32 j, pwpls;
91 l_uint32 *sptr, *dptr;
92 --- declare wplsN args as necessary ----------------------
93 pwpls = (l_uint32)(w + 31) / 32; /* proper wpl of src */
94
95 for (i = 0; i < h; i++) {
96 sptr = datas + i * wpls;
97 dptr = datad + i * wpld;
98 for (j = 0; j < pwpls; j++, sptr++, dptr++) {
99 --- insert barrel-op code for *dptr here ...
100 }
101 }
102 }
103