Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/util/shape-output.hh @ 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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children
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2
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1 /*
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2 * Copyright © 2010 Behdad Esfahbod
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3 * Copyright © 2011,2012 Google, Inc.
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4 *
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5 * This is part of HarfBuzz, a text shaping library.
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6 *
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7 * Permission is hereby granted, without written agreement and without
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8 * license or royalty fees, to use, copy, modify, and distribute this
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9 * software and its documentation for any purpose, provided that the
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10 * above copyright notice and the following two paragraphs appear in
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11 * all copies of this software.
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12 *
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13 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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14 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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15 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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16 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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17 * DAMAGE.
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18 *
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19 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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20 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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21 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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22 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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23 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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24 *
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25 * Google Author(s): Behdad Esfahbod
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26 */
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27
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28 #ifndef HB_SHAPE_OUTPUT_HH
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29 #define HB_SHAPE_OUTPUT_HH
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30
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31 #include "shape-format.hh"
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32 #include "output-options.hh"
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33
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34
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35 struct shape_output_t : output_options_t<>
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36 {
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37 void add_options (option_parser_t *parser)
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38 {
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39 parser->set_summary ("Shape text with given font.");
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40 output_options_t::add_options (parser, hb_buffer_serialize_list_formats ());
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41 format.add_options (parser);
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42 }
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43
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44 void init (hb_buffer_t *buffer, const font_options_t *font_opts)
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45 {
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46 gs = g_string_new (nullptr);
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47 line_no = 0;
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48 font = hb_font_reference (font_opts->font);
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49
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50 if (!output_format)
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51 serialize_format = HB_BUFFER_SERIALIZE_FORMAT_TEXT;
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52 else
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53 serialize_format = hb_buffer_serialize_format_from_string (output_format, -1);
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54 /* An empty "output_format" parameter basically skips output generating.
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55 * Useful for benchmarking. */
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56 if ((!output_format || *output_format) &&
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57 !hb_buffer_serialize_format_to_string (serialize_format))
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58 {
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59 if (explicit_output_format)
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60 fail (false, "Unknown output format `%s'; supported formats are: %s",
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61 output_format,
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62 g_strjoinv ("/", const_cast<char**> (hb_buffer_serialize_list_formats ())));
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63 else
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64 /* Just default to TEXT if not explicitly requested and the
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65 * file extension is not recognized. */
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66 serialize_format = HB_BUFFER_SERIALIZE_FORMAT_TEXT;
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67 }
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68
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69 unsigned int flags = HB_BUFFER_SERIALIZE_FLAG_DEFAULT;
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70 if (!format.show_glyph_names)
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71 flags |= HB_BUFFER_SERIALIZE_FLAG_NO_GLYPH_NAMES;
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72 if (!format.show_clusters)
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73 flags |= HB_BUFFER_SERIALIZE_FLAG_NO_CLUSTERS;
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74 if (!format.show_positions)
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75 flags |= HB_BUFFER_SERIALIZE_FLAG_NO_POSITIONS;
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76 if (!format.show_advances)
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77 flags |= HB_BUFFER_SERIALIZE_FLAG_NO_ADVANCES;
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78 if (format.show_extents)
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79 flags |= HB_BUFFER_SERIALIZE_FLAG_GLYPH_EXTENTS;
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80 if (format.show_flags)
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81 flags |= HB_BUFFER_SERIALIZE_FLAG_GLYPH_FLAGS;
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82 serialize_flags = (hb_buffer_serialize_flags_t) flags;
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83
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84 if (format.trace)
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85 hb_buffer_set_message_func (buffer, message_func, this, nullptr);
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86 }
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87 void new_line () { line_no++; }
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88 void consume_text (hb_buffer_t *buffer,
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89 const char *text,
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90 unsigned int text_len,
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91 hb_bool_t utf8_clusters)
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92 {
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93 g_string_set_size (gs, 0);
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94 format.serialize_buffer_of_text (buffer, line_no, text, text_len, font, gs);
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95 fprintf (out_fp, "%s", gs->str);
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96 }
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97 void error (const char *message)
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98 {
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99 g_string_set_size (gs, 0);
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100 format.serialize_message (line_no, "error", message, gs);
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101 fprintf (out_fp, "%s", gs->str);
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102 }
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103 void consume_glyphs (hb_buffer_t *buffer,
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104 const char *text,
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105 unsigned int text_len,
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106 hb_bool_t utf8_clusters)
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107 {
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108 g_string_set_size (gs, 0);
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109 format.serialize_buffer_of_glyphs (buffer, line_no, text, text_len, font,
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110 serialize_format, serialize_flags, gs);
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111 fprintf (out_fp, "%s", gs->str);
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112 }
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113 void finish (hb_buffer_t *buffer, const font_options_t *font_opts)
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114 {
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115 hb_buffer_set_message_func (buffer, nullptr, nullptr, nullptr);
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116 hb_font_destroy (font);
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117 g_string_free (gs, true);
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118 gs = nullptr;
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119 font = nullptr;
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120 }
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121
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122 static hb_bool_t
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123 message_func (hb_buffer_t *buffer,
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124 hb_font_t *font,
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125 const char *message,
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126 void *user_data)
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127 {
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128 shape_output_t *that = (shape_output_t *) user_data;
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129 that->trace (buffer, font, message);
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130 return true;
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131 }
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132
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133 void
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134 trace (hb_buffer_t *buffer,
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135 hb_font_t *font,
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136 const char *message)
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137 {
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138 g_string_set_size (gs, 0);
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139 format.serialize_line_no (line_no, gs);
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140 g_string_append_printf (gs, "trace: %s buffer: ", message);
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141 format.serialize (buffer, font, serialize_format, serialize_flags, gs);
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142 g_string_append_c (gs, '\n');
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143 fprintf (out_fp, "%s", gs->str);
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144 }
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145
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146
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147 protected:
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148
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149 shape_format_options_t format;
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150
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151 GString *gs = nullptr;
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152 unsigned int line_no = 0;
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153 hb_font_t *font = nullptr;
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154 hb_buffer_serialize_format_t serialize_format = HB_BUFFER_SERIALIZE_FORMAT_INVALID;
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155 hb_buffer_serialize_flags_t serialize_flags = HB_BUFFER_SERIALIZE_FLAG_DEFAULT;
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156 };
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157
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158
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159 #endif