Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/leptonica/src/pngiostub.c @ 32:72c1b70d4f5c

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author Franz Glasner <fzglas.hg@dom66.de>
date Sun, 21 Sep 2025 15:10:12 +0200
parents b50eed0cc0ef
children
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1 /*====================================================================*
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2 - Copyright (C) 2001 Leptonica. All rights reserved.
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3 -
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4 - Redistribution and use in source and binary forms, with or without
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5 - modification, are permitted provided that the following conditions
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6 - are met:
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7 - 1. Redistributions of source code must retain the above copyright
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8 - notice, this list of conditions and the following disclaimer.
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9 - 2. Redistributions in binary form must reproduce the above
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10 - copyright notice, this list of conditions and the following
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11 - disclaimer in the documentation and/or other materials
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12 - provided with the distribution.
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13 -
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14 - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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15 - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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16 - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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17 - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
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18 - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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19 - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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20 - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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21 - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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22 - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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23 - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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24 - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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25 *====================================================================*/
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27 /*!
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28 * \file pngiostub.c
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29 * <pre>
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30 *
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31 * Stubs for pngio.c functions
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32 * </pre>
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33 */
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35 #ifdef HAVE_CONFIG_H
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36 #include <config_auto.h>
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37 #endif /* HAVE_CONFIG_H */
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39 #include "allheaders.h"
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41 /* --------------------------------------------*/
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42 #if !HAVE_LIBPNG /* defined in environ.h */
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43 /* --------------------------------------------*/
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45 PIX * pixReadStreamPng(FILE *fp)
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46 {
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47 return (PIX * )ERROR_PTR("function not present", __func__, NULL);
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48 }
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50 /* ----------------------------------------------------------------------*/
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52 l_ok readHeaderPng(const char *filename, l_int32 *pwidth, l_int32 *pheight,
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53 l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap)
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54 {
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55 return ERROR_INT("function not present", __func__, 1);
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56 }
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58 /* ----------------------------------------------------------------------*/
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60 l_ok freadHeaderPng(FILE *fp, l_int32 *pwidth, l_int32 *pheight,
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61 l_int32 *pbps, l_int32 *pspp, l_int32 *piscmap)
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62 {
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63 return ERROR_INT("function not present", __func__, 1);
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64 }
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66 /* ----------------------------------------------------------------------*/
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68 l_ok readHeaderMemPng(const l_uint8 *data, size_t size, l_int32 *pwidth,
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69 l_int32 *pheight, l_int32 *pbps, l_int32 *pspp,
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70 l_int32 *piscmap)
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71 {
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72 return ERROR_INT("function not present", __func__, 1);
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73 }
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75 /* ----------------------------------------------------------------------*/
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77 l_int32 fgetPngResolution(FILE *fp, l_int32 *pxres, l_int32 *pyres)
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78 {
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79 return ERROR_INT("function not present", __func__, 1);
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80 }
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82 /* ----------------------------------------------------------------------*/
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84 l_ok isPngInterlaced(const char *filename, l_int32 *pinterlaced)
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85 {
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86 return ERROR_INT("function not present", __func__, 1);
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87 }
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89 /* ----------------------------------------------------------------------*/
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91 l_ok fgetPngColormapInfo(FILE *fp, PIXCMAP **pcmap, l_int32 *ptransparency)
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92 {
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93 return ERROR_INT("function not present", __func__, 1);
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94 }
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96 /* ----------------------------------------------------------------------*/
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98 l_ok pixWritePng(const char *filename, PIX *pix, l_float32 gamma)
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99 {
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100 return ERROR_INT("function not present", __func__, 1);
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101 }
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102
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103 /* ----------------------------------------------------------------------*/
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104
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105 l_ok pixWriteStreamPng(FILE *fp, PIX *pix, l_float32 gamma)
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106 {
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107 return ERROR_INT("function not present", __func__, 1);
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108 }
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109
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110 /* ----------------------------------------------------------------------*/
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111
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112 l_ok pixSetZlibCompression(PIX *pix, l_int32 compval)
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113
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114 {
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115 return ERROR_INT("function not present", __func__, 1);
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116 }
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117
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118 /* ----------------------------------------------------------------------*/
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119
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120 void l_pngSetReadStrip16To8(l_int32 flag)
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121 {
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122 L_ERROR("function not present\n", __func__);
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123 return;
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124 }
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125
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126 /* ----------------------------------------------------------------------*/
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127
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128 PIX * pixReadMemPng(const l_uint8 *filedata, size_t filesize)
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129 {
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130 return (PIX * )ERROR_PTR("function not present", __func__, NULL);
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131 }
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132
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133 /* ----------------------------------------------------------------------*/
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134
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135 l_ok pixWriteMemPng(l_uint8 **pfiledata, size_t *pfilesize, PIX *pix,
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136 l_float32 gamma)
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137 {
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138 return ERROR_INT("function not present", __func__, 1);
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139 }
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140
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141 /* --------------------------------------------*/
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142 #endif /* !HAVE_LIBPNG */
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143 /* --------------------------------------------*/