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| 1 /***************************************************************************/ | |
| 2 /* */ | |
| 3 /* ftbitmap.h */ | |
| 4 /* */ | |
| 5 /* FreeType utility functions for bitmaps (specification). */ | |
| 6 /* */ | |
| 7 /* Copyright 2004-2006, 2008, 2013 by */ | |
| 8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */ | |
| 9 /* */ | |
| 10 /* This file is part of the FreeType project, and may only be used, */ | |
| 11 /* modified, and distributed under the terms of the FreeType project */ | |
| 12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ | |
| 13 /* this file you indicate that you have read the license and */ | |
| 14 /* understand and accept it fully. */ | |
| 15 /* */ | |
| 16 /***************************************************************************/ | |
| 17 | |
| 18 | |
| 19 #ifndef __FTBITMAP_H__ | |
| 20 #define __FTBITMAP_H__ | |
| 21 | |
| 22 | |
| 23 #include "../ft2build.h" | |
| 24 #include "freetype.h" | |
| 25 | |
| 26 #ifdef FREETYPE_H | |
| 27 #error "freetype.h of FreeType 1 has been loaded!" | |
| 28 #error "Please fix the directory search order for header files" | |
| 29 #error "so that freetype.h of FreeType 2 is found first." | |
| 30 #endif | |
| 31 | |
| 32 | |
| 33 FT_BEGIN_HEADER | |
| 34 | |
| 35 | |
| 36 /*************************************************************************/ | |
| 37 /* */ | |
| 38 /* <Section> */ | |
| 39 /* bitmap_handling */ | |
| 40 /* */ | |
| 41 /* <Title> */ | |
| 42 /* Bitmap Handling */ | |
| 43 /* */ | |
| 44 /* <Abstract> */ | |
| 45 /* Handling FT_Bitmap objects. */ | |
| 46 /* */ | |
| 47 /* <Description> */ | |
| 48 /* This section contains functions for converting FT_Bitmap objects. */ | |
| 49 /* */ | |
| 50 /*************************************************************************/ | |
| 51 | |
| 52 | |
| 53 /*************************************************************************/ | |
| 54 /* */ | |
| 55 /* <Function> */ | |
| 56 /* FT_Bitmap_New */ | |
| 57 /* */ | |
| 58 /* <Description> */ | |
| 59 /* Initialize a pointer to an @FT_Bitmap structure. */ | |
| 60 /* */ | |
| 61 /* <InOut> */ | |
| 62 /* abitmap :: A pointer to the bitmap structure. */ | |
| 63 /* */ | |
| 64 FT_EXPORT( void ) | |
| 65 FT_Bitmap_New( FT_Bitmap *abitmap ); | |
| 66 | |
| 67 | |
| 68 /*************************************************************************/ | |
| 69 /* */ | |
| 70 /* <Function> */ | |
| 71 /* FT_Bitmap_Copy */ | |
| 72 /* */ | |
| 73 /* <Description> */ | |
| 74 /* Copy a bitmap into another one. */ | |
| 75 /* */ | |
| 76 /* <Input> */ | |
| 77 /* library :: A handle to a library object. */ | |
| 78 /* */ | |
| 79 /* source :: A handle to the source bitmap. */ | |
| 80 /* */ | |
| 81 /* <Output> */ | |
| 82 /* target :: A handle to the target bitmap. */ | |
| 83 /* */ | |
| 84 /* <Return> */ | |
| 85 /* FreeType error code. 0~means success. */ | |
| 86 /* */ | |
| 87 FT_EXPORT( FT_Error ) | |
| 88 FT_Bitmap_Copy( FT_Library library, | |
| 89 const FT_Bitmap *source, | |
| 90 FT_Bitmap *target); | |
| 91 | |
| 92 | |
| 93 /*************************************************************************/ | |
| 94 /* */ | |
| 95 /* <Function> */ | |
| 96 /* FT_Bitmap_Embolden */ | |
| 97 /* */ | |
| 98 /* <Description> */ | |
| 99 /* Embolden a bitmap. The new bitmap will be about `xStrength' */ | |
| 100 /* pixels wider and `yStrength' pixels higher. The left and bottom */ | |
| 101 /* borders are kept unchanged. */ | |
| 102 /* */ | |
| 103 /* <Input> */ | |
| 104 /* library :: A handle to a library object. */ | |
| 105 /* */ | |
| 106 /* xStrength :: How strong the glyph is emboldened horizontally. */ | |
| 107 /* Expressed in 26.6 pixel format. */ | |
| 108 /* */ | |
| 109 /* yStrength :: How strong the glyph is emboldened vertically. */ | |
| 110 /* Expressed in 26.6 pixel format. */ | |
| 111 /* */ | |
| 112 /* <InOut> */ | |
| 113 /* bitmap :: A handle to the target bitmap. */ | |
| 114 /* */ | |
| 115 /* <Return> */ | |
| 116 /* FreeType error code. 0~means success. */ | |
| 117 /* */ | |
| 118 /* <Note> */ | |
| 119 /* The current implementation restricts `xStrength' to be less than */ | |
| 120 /* or equal to~8 if bitmap is of pixel_mode @FT_PIXEL_MODE_MONO. */ | |
| 121 /* */ | |
| 122 /* If you want to embolden the bitmap owned by a @FT_GlyphSlotRec, */ | |
| 123 /* you should call @FT_GlyphSlot_Own_Bitmap on the slot first. */ | |
| 124 /* */ | |
| 125 FT_EXPORT( FT_Error ) | |
| 126 FT_Bitmap_Embolden( FT_Library library, | |
| 127 FT_Bitmap* bitmap, | |
| 128 FT_Pos xStrength, | |
| 129 FT_Pos yStrength ); | |
| 130 | |
| 131 | |
| 132 /*************************************************************************/ | |
| 133 /* */ | |
| 134 /* <Function> */ | |
| 135 /* FT_Bitmap_Convert */ | |
| 136 /* */ | |
| 137 /* <Description> */ | |
| 138 /* Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, 8bpp or 32bpp */ | |
| 139 /* to a bitmap object with depth 8bpp, making the number of used */ | |
| 140 /* bytes line (a.k.a. the `pitch') a multiple of `alignment'. */ | |
| 141 /* */ | |
| 142 /* <Input> */ | |
| 143 /* library :: A handle to a library object. */ | |
| 144 /* */ | |
| 145 /* source :: The source bitmap. */ | |
| 146 /* */ | |
| 147 /* alignment :: The pitch of the bitmap is a multiple of this */ | |
| 148 /* parameter. Common values are 1, 2, or 4. */ | |
| 149 /* */ | |
| 150 /* <Output> */ | |
| 151 /* target :: The target bitmap. */ | |
| 152 /* */ | |
| 153 /* <Return> */ | |
| 154 /* FreeType error code. 0~means success. */ | |
| 155 /* */ | |
| 156 /* <Note> */ | |
| 157 /* It is possible to call @FT_Bitmap_Convert multiple times without */ | |
| 158 /* calling @FT_Bitmap_Done (the memory is simply reallocated). */ | |
| 159 /* */ | |
| 160 /* Use @FT_Bitmap_Done to finally remove the bitmap object. */ | |
| 161 /* */ | |
| 162 /* The `library' argument is taken to have access to FreeType's */ | |
| 163 /* memory handling functions. */ | |
| 164 /* */ | |
| 165 FT_EXPORT( FT_Error ) | |
| 166 FT_Bitmap_Convert( FT_Library library, | |
| 167 const FT_Bitmap *source, | |
| 168 FT_Bitmap *target, | |
| 169 FT_Int alignment ); | |
| 170 | |
| 171 | |
| 172 /*************************************************************************/ | |
| 173 /* */ | |
| 174 /* <Function> */ | |
| 175 /* FT_GlyphSlot_Own_Bitmap */ | |
| 176 /* */ | |
| 177 /* <Description> */ | |
| 178 /* Make sure that a glyph slot owns `slot->bitmap'. */ | |
| 179 /* */ | |
| 180 /* <Input> */ | |
| 181 /* slot :: The glyph slot. */ | |
| 182 /* */ | |
| 183 /* <Return> */ | |
| 184 /* FreeType error code. 0~means success. */ | |
| 185 /* */ | |
| 186 /* <Note> */ | |
| 187 /* This function is to be used in combination with */ | |
| 188 /* @FT_Bitmap_Embolden. */ | |
| 189 /* */ | |
| 190 FT_EXPORT( FT_Error ) | |
| 191 FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot slot ); | |
| 192 | |
| 193 | |
| 194 /*************************************************************************/ | |
| 195 /* */ | |
| 196 /* <Function> */ | |
| 197 /* FT_Bitmap_Done */ | |
| 198 /* */ | |
| 199 /* <Description> */ | |
| 200 /* Destroy a bitmap object created with @FT_Bitmap_New. */ | |
| 201 /* */ | |
| 202 /* <Input> */ | |
| 203 /* library :: A handle to a library object. */ | |
| 204 /* */ | |
| 205 /* bitmap :: The bitmap object to be freed. */ | |
| 206 /* */ | |
| 207 /* <Return> */ | |
| 208 /* FreeType error code. 0~means success. */ | |
| 209 /* */ | |
| 210 /* <Note> */ | |
| 211 /* The `library' argument is taken to have access to FreeType's */ | |
| 212 /* memory handling functions. */ | |
| 213 /* */ | |
| 214 FT_EXPORT( FT_Error ) | |
| 215 FT_Bitmap_Done( FT_Library library, | |
| 216 FT_Bitmap *bitmap ); | |
| 217 | |
| 218 | |
| 219 /* */ | |
| 220 | |
| 221 | |
| 222 FT_END_HEADER | |
| 223 | |
| 224 #endif /* __FTBITMAP_H__ */ | |
| 225 | |
| 226 | |
| 227 /* END */ | |
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Chromium Code Reviews
Issue 815103002:
Update freetype to 2.5.4. (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master