Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/util/helper-cairo-ft.hh @ 17:dd9cdb856310

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Remove PKG-INFO from the because it is regenerated automatically for the sdist
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 18 Sep 2025 17:40:40 +0200
parents b50eed0cc0ef
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2
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1 /*
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2 * Copyright © 2022 Google, Inc.
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3 *
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4 * This is part of HarfBuzz, a text shaping library.
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5 *
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6 * Permission is hereby granted, without written agreement and without
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7 * license or royalty fees, to use, copy, modify, and distribute this
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8 * software and its documentation for any purpose, provided that the
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9 * above copyright notice and the following two paragraphs appear in
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10 * all copies of this software.
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11 *
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12 * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
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13 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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14 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
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15 * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
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16 * DAMAGE.
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17 *
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18 * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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19 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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20 * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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21 * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
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22 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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23 *
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24 * Google Author(s): Behdad Esfahbod
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25 */
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27 #ifndef HELPER_CAIRO_FT_HH
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28 #define HELPER_CAIRO_FT_HH
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30 #include "font-options.hh"
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32 #include <cairo-ft.h>
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33 #include <hb-ft.h>
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34 #include FT_MULTIPLE_MASTERS_H
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35
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36 static FT_Library ft_library;
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37
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38 #ifdef HAVE_ATEXIT
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39 static inline
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40 void free_ft_library ()
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41 {
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42 FT_Done_FreeType (ft_library);
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43 }
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44 #endif
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45
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46 static inline cairo_font_face_t *
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47 helper_cairo_create_ft_font_face (const font_options_t *font_opts)
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48 {
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49 cairo_font_face_t *cairo_face;
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50 /* We cannot use the FT_Face from hb_font_t, as doing so will confuse hb_font_t because
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51 * cairo will reset the face size. As such, create new face...
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52 * TODO Perhaps add API to hb-ft to encapsulate this code. */
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53 FT_Face ft_face = nullptr;//hb_ft_font_get_face (font);
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54 if (!ft_face)
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55 {
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56 if (!ft_library)
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57 {
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58 FT_Init_FreeType (&ft_library);
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59 #ifdef HAVE_ATEXIT
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60 atexit (free_ft_library);
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61 #endif
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62 }
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63
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64 unsigned int blob_length;
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65 const char *blob_data = hb_blob_get_data (font_opts->blob, &blob_length);
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66
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67 if (FT_New_Memory_Face (ft_library,
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68 (const FT_Byte *) blob_data,
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69 blob_length,
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70 font_opts->face_index,
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71 &ft_face))
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72 fail (false, "FT_New_Memory_Face fail");
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73 }
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74 if (!ft_face)
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75 {
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76 /* This allows us to get some boxes at least... */
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77 cairo_face = cairo_toy_font_face_create ("@cairo:sans",
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78 CAIRO_FONT_SLANT_NORMAL,
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79 CAIRO_FONT_WEIGHT_NORMAL);
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80 }
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81 else
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82 {
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83 #if !defined(HB_NO_VAR) && defined(HAVE_FT_SET_VAR_BLEND_COORDINATES)
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84 unsigned int num_coords;
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85 const float *coords = hb_font_get_var_coords_design (font_opts->font, &num_coords);
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86 if (num_coords)
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87 {
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88 FT_Fixed *ft_coords = (FT_Fixed *) calloc (num_coords, sizeof (FT_Fixed));
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89 if (ft_coords)
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90 {
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91 for (unsigned int i = 0; i < num_coords; i++)
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92 ft_coords[i] = coords[i] * 65536.f;
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93 FT_Set_Var_Design_Coordinates (ft_face, num_coords, ft_coords);
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94 free (ft_coords);
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95 }
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96 }
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97 #endif
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98
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99 cairo_face = cairo_ft_font_face_create_for_ft_face (ft_face, font_opts->ft_load_flags);
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100 }
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101 return cairo_face;
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102 }
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103
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104 static inline bool
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105 helper_cairo_ft_scaled_font_has_color (cairo_scaled_font_t *scaled_font)
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106 {
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107 bool ret = false;
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108 #ifdef FT_HAS_COLOR
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109 FT_Face ft_face = cairo_ft_scaled_font_lock_face (scaled_font);
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110 if (ft_face)
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111 {
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112 if (FT_HAS_COLOR (ft_face))
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113 ret = true;
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114 cairo_ft_scaled_font_unlock_face (scaled_font);
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115 }
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116 #endif
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117 return ret;
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118 }
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119
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120 #endif