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annotate freetype2/freetype/ftglyph.h @ 1660:8b50b1ee068e draft

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author Masa <e085726@ie.u-ryukyu.ac.jp>
date Tue, 16 Jul 2013 13:06:31 +0900
parents a8ab91f49cac
children
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1 /***************************************************************************/
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2 /* */
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3 /* ftglyph.h */
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4 /* */
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5 /* FreeType convenience functions to handle glyphs (specification). */
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6 /* */
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7 /* Copyright 1996-2003, 2006, 2008, 2009, 2011 by */
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8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
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9 /* */
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10 /* This file is part of the FreeType project, and may only be used, */
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11 /* modified, and distributed under the terms of the FreeType project */
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12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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13 /* this file you indicate that you have read the license and */
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14 /* understand and accept it fully. */
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15 /* */
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16 /***************************************************************************/
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17
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18
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19 /*************************************************************************/
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20 /* */
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21 /* This file contains the definition of several convenience functions */
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22 /* that can be used by client applications to easily retrieve glyph */
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23 /* bitmaps and outlines from a given face. */
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24 /* */
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25 /* These functions should be optional if you are writing a font server */
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26 /* or text layout engine on top of FreeType. However, they are pretty */
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27 /* handy for many other simple uses of the library. */
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28 /* */
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29 /*************************************************************************/
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30
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31
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32 #ifndef __FTGLYPH_H__
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33 #define __FTGLYPH_H__
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34
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35
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36 #include <ft2build.h>
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37 #include FT_FREETYPE_H
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38
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39 #ifdef FREETYPE_H
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40 #error "freetype.h of FreeType 1 has been loaded!"
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41 #error "Please fix the directory search order for header files"
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42 #error "so that freetype.h of FreeType 2 is found first."
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43 #endif
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44
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45
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46 FT_BEGIN_HEADER
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47
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48
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49 /*************************************************************************/
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50 /* */
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51 /* <Section> */
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52 /* glyph_management */
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53 /* */
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54 /* <Title> */
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55 /* Glyph Management */
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56 /* */
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57 /* <Abstract> */
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58 /* Generic interface to manage individual glyph data. */
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59 /* */
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60 /* <Description> */
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61 /* This section contains definitions used to manage glyph data */
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62 /* through generic FT_Glyph objects. Each of them can contain a */
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63 /* bitmap, a vector outline, or even images in other formats. */
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64 /* */
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65 /*************************************************************************/
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66
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67
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68 /* forward declaration to a private type */
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69 typedef struct FT_Glyph_Class_ FT_Glyph_Class;
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70
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71
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72 /*************************************************************************/
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73 /* */
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74 /* <Type> */
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75 /* FT_Glyph */
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76 /* */
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77 /* <Description> */
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78 /* Handle to an object used to model generic glyph images. It is a */
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79 /* pointer to the @FT_GlyphRec structure and can contain a glyph */
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80 /* bitmap or pointer. */
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81 /* */
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82 /* <Note> */
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83 /* Glyph objects are not owned by the library. You must thus release */
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84 /* them manually (through @FT_Done_Glyph) _before_ calling */
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85 /* @FT_Done_FreeType. */
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86 /* */
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87 typedef struct FT_GlyphRec_* FT_Glyph;
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88
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89
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90 /*************************************************************************/
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91 /* */
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92 /* <Struct> */
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93 /* FT_GlyphRec */
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94 /* */
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95 /* <Description> */
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96 /* The root glyph structure contains a given glyph image plus its */
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97 /* advance width in 16.16 fixed float format. */
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98 /* */
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99 /* <Fields> */
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100 /* library :: A handle to the FreeType library object. */
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101 /* */
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102 /* clazz :: A pointer to the glyph's class. Private. */
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103 /* */
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104 /* format :: The format of the glyph's image. */
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105 /* */
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106 /* advance :: A 16.16 vector that gives the glyph's advance width. */
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107 /* */
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108 typedef struct FT_GlyphRec_
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109 {
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110 FT_Library library;
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111 const FT_Glyph_Class* clazz;
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112 FT_Glyph_Format format;
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113 FT_Vector advance;
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114
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115 } FT_GlyphRec;
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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 /* <Type> */
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121 /* FT_BitmapGlyph */
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122 /* */
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123 /* <Description> */
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124 /* A handle to an object used to model a bitmap glyph image. This is */
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125 /* a sub-class of @FT_Glyph, and a pointer to @FT_BitmapGlyphRec. */
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126 /* */
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127 typedef struct FT_BitmapGlyphRec_* FT_BitmapGlyph;
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128
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129
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130 /*************************************************************************/
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131 /* */
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132 /* <Struct> */
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133 /* FT_BitmapGlyphRec */
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134 /* */
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135 /* <Description> */
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136 /* A structure used for bitmap glyph images. This really is a */
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137 /* `sub-class' of @FT_GlyphRec. */
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138 /* */
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139 /* <Fields> */
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140 /* root :: The root @FT_Glyph fields. */
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141 /* */
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142 /* left :: The left-side bearing, i.e., the horizontal distance */
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143 /* from the current pen position to the left border of the */
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144 /* glyph bitmap. */
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145 /* */
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146 /* top :: The top-side bearing, i.e., the vertical distance from */
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147 /* the current pen position to the top border of the glyph */
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148 /* bitmap. This distance is positive for upwards~y! */
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149 /* */
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150 /* bitmap :: A descriptor for the bitmap. */
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151 /* */
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152 /* <Note> */
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153 /* You can typecast an @FT_Glyph to @FT_BitmapGlyph if you have */
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154 /* `glyph->format == FT_GLYPH_FORMAT_BITMAP'. This lets you access */
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155 /* the bitmap's contents easily. */
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156 /* */
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157 /* The corresponding pixel buffer is always owned by @FT_BitmapGlyph */
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158 /* and is thus created and destroyed with it. */
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159 /* */
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160 typedef struct FT_BitmapGlyphRec_
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161 {
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162 FT_GlyphRec root;
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163 FT_Int left;
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164 FT_Int top;
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165 FT_Bitmap bitmap;
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166
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167 } FT_BitmapGlyphRec;
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168
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169
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170 /*************************************************************************/
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171 /* */
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172 /* <Type> */
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173 /* FT_OutlineGlyph */
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174 /* */
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175 /* <Description> */
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176 /* A handle to an object used to model an outline glyph image. This */
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177 /* is a sub-class of @FT_Glyph, and a pointer to @FT_OutlineGlyphRec. */
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178 /* */
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179 typedef struct FT_OutlineGlyphRec_* FT_OutlineGlyph;
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180
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181
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182 /*************************************************************************/
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183 /* */
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184 /* <Struct> */
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185 /* FT_OutlineGlyphRec */
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186 /* */
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187 /* <Description> */
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188 /* A structure used for outline (vectorial) glyph images. This */
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189 /* really is a `sub-class' of @FT_GlyphRec. */
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190 /* */
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191 /* <Fields> */
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192 /* root :: The root @FT_Glyph fields. */
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193 /* */
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194 /* outline :: A descriptor for the outline. */
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195 /* */
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196 /* <Note> */
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197 /* You can typecast an @FT_Glyph to @FT_OutlineGlyph if you have */
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198 /* `glyph->format == FT_GLYPH_FORMAT_OUTLINE'. This lets you access */
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199 /* the outline's content easily. */
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200 /* */
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201 /* As the outline is extracted from a glyph slot, its coordinates are */
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202 /* expressed normally in 26.6 pixels, unless the flag */
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203 /* @FT_LOAD_NO_SCALE was used in @FT_Load_Glyph() or @FT_Load_Char(). */
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204 /* */
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205 /* The outline's tables are always owned by the object and are */
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206 /* destroyed with it. */
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207 /* */
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208 typedef struct FT_OutlineGlyphRec_
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209 {
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210 FT_GlyphRec root;
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211 FT_Outline outline;
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212
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213 } FT_OutlineGlyphRec;
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214
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215
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216 /*************************************************************************/
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217 /* */
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218 /* <Function> */
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219 /* FT_Get_Glyph */
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220 /* */
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221 /* <Description> */
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222 /* A function used to extract a glyph image from a slot. Note that */
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223 /* the created @FT_Glyph object must be released with @FT_Done_Glyph. */
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224 /* */
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225 /* <Input> */
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226 /* slot :: A handle to the source glyph slot. */
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227 /* */
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228 /* <Output> */
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229 /* aglyph :: A handle to the glyph object. */
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230 /* */
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231 /* <Return> */
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232 /* FreeType error code. 0~means success. */
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233 /* */
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234 FT_EXPORT( FT_Error )
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235 FT_Get_Glyph( FT_GlyphSlot slot,
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236 FT_Glyph *aglyph );
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237
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238
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239 /*************************************************************************/
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240 /* */
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241 /* <Function> */
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242 /* FT_Glyph_Copy */
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243 /* */
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244 /* <Description> */
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245 /* A function used to copy a glyph image. Note that the created */
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246 /* @FT_Glyph object must be released with @FT_Done_Glyph. */
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247 /* */
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248 /* <Input> */
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249 /* source :: A handle to the source glyph object. */
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250 /* */
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251 /* <Output> */
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252 /* target :: A handle to the target glyph object. 0~in case of */
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253 /* error. */
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254 /* */
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255 /* <Return> */
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256 /* FreeType error code. 0~means success. */
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257 /* */
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258 FT_EXPORT( FT_Error )
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259 FT_Glyph_Copy( FT_Glyph source,
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260 FT_Glyph *target );
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261
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262
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263 /*************************************************************************/
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264 /* */
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265 /* <Function> */
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266 /* FT_Glyph_Transform */
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267 /* */
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268 /* <Description> */
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269 /* Transform a glyph image if its format is scalable. */
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270 /* */
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271 /* <InOut> */
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272 /* glyph :: A handle to the target glyph object. */
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273 /* */
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274 /* <Input> */
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275 /* matrix :: A pointer to a 2x2 matrix to apply. */
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276 /* */
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277 /* delta :: A pointer to a 2d vector to apply. Coordinates are */
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278 /* expressed in 1/64th of a pixel. */
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279 /* */
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280 /* <Return> */
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281 /* FreeType error code (if not 0, the glyph format is not scalable). */
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282 /* */
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283 /* <Note> */
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284 /* The 2x2 transformation matrix is also applied to the glyph's */
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285 /* advance vector. */
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286 /* */
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287 FT_EXPORT( FT_Error )
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288 FT_Glyph_Transform( FT_Glyph glyph,
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289 FT_Matrix* matrix,
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290 FT_Vector* delta );
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291
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292
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293 /*************************************************************************/
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294 /* */
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295 /* <Enum> */
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296 /* FT_Glyph_BBox_Mode */
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297 /* */
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298 /* <Description> */
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299 /* The mode how the values of @FT_Glyph_Get_CBox are returned. */
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300 /* */
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301 /* <Values> */
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302 /* FT_GLYPH_BBOX_UNSCALED :: */
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303 /* Return unscaled font units. */
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304 /* */
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305 /* FT_GLYPH_BBOX_SUBPIXELS :: */
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306 /* Return unfitted 26.6 coordinates. */
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307 /* */
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308 /* FT_GLYPH_BBOX_GRIDFIT :: */
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309 /* Return grid-fitted 26.6 coordinates. */
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310 /* */
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311 /* FT_GLYPH_BBOX_TRUNCATE :: */
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312 /* Return coordinates in integer pixels. */
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313 /* */
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314 /* FT_GLYPH_BBOX_PIXELS :: */
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315 /* Return grid-fitted pixel coordinates. */
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316 /* */
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317 typedef enum FT_Glyph_BBox_Mode_
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318 {
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319 FT_GLYPH_BBOX_UNSCALED = 0,
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320 FT_GLYPH_BBOX_SUBPIXELS = 0,
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321 FT_GLYPH_BBOX_GRIDFIT = 1,
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322 FT_GLYPH_BBOX_TRUNCATE = 2,
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323 FT_GLYPH_BBOX_PIXELS = 3
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324
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325 } FT_Glyph_BBox_Mode;
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326
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327
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328 /*************************************************************************/
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329 /* */
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330 /* <Enum> */
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331 /* ft_glyph_bbox_xxx */
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332 /* */
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333 /* <Description> */
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334 /* These constants are deprecated. Use the corresponding */
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335 /* @FT_Glyph_BBox_Mode values instead. */
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336 /* */
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337 /* <Values> */
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338 /* ft_glyph_bbox_unscaled :: See @FT_GLYPH_BBOX_UNSCALED. */
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339 /* ft_glyph_bbox_subpixels :: See @FT_GLYPH_BBOX_SUBPIXELS. */
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340 /* ft_glyph_bbox_gridfit :: See @FT_GLYPH_BBOX_GRIDFIT. */
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341 /* ft_glyph_bbox_truncate :: See @FT_GLYPH_BBOX_TRUNCATE. */
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342 /* ft_glyph_bbox_pixels :: See @FT_GLYPH_BBOX_PIXELS. */
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343 /* */
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344 #define ft_glyph_bbox_unscaled FT_GLYPH_BBOX_UNSCALED
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345 #define ft_glyph_bbox_subpixels FT_GLYPH_BBOX_SUBPIXELS
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346 #define ft_glyph_bbox_gridfit FT_GLYPH_BBOX_GRIDFIT
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347 #define ft_glyph_bbox_truncate FT_GLYPH_BBOX_TRUNCATE
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348 #define ft_glyph_bbox_pixels FT_GLYPH_BBOX_PIXELS
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349
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350
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351 /*************************************************************************/
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352 /* */
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353 /* <Function> */
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354 /* FT_Glyph_Get_CBox */
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355 /* */
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356 /* <Description> */
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357 /* Return a glyph's `control box'. The control box encloses all the */
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358 /* outline's points, including Bézier control points. Though it */
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359 /* coincides with the exact bounding box for most glyphs, it can be */
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360 /* slightly larger in some situations (like when rotating an outline */
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361 /* which contains Bézier outside arcs). */
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362 /* */
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363 /* Computing the control box is very fast, while getting the bounding */
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364 /* box can take much more time as it needs to walk over all segments */
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365 /* and arcs in the outline. To get the latter, you can use the */
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366 /* `ftbbox' component which is dedicated to this single task. */
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367 /* */
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368 /* <Input> */
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369 /* glyph :: A handle to the source glyph object. */
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370 /* */
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diff changeset
371 /* mode :: The mode which indicates how to interpret the returned */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
372 /* bounding box values. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
373 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
374 /* <Output> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
375 /* acbox :: The glyph coordinate bounding box. Coordinates are */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
376 /* expressed in 1/64th of pixels if it is grid-fitted. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
377 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
378 /* <Note> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
379 /* Coordinates are relative to the glyph origin, using the y~upwards */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
380 /* convention. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
381 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
382 /* If the glyph has been loaded with @FT_LOAD_NO_SCALE, `bbox_mode' */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
383 /* must be set to @FT_GLYPH_BBOX_UNSCALED to get unscaled font */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
384 /* units in 26.6 pixel format. The value @FT_GLYPH_BBOX_SUBPIXELS */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
385 /* is another name for this constant. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
386 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
387 /* If the font is tricky and the glyph has been loaded with */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
388 /* @FT_LOAD_NO_SCALE, the resulting CBox is meaningless. To get */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
389 /* reasonable values for the CBox it is necessary to load the glyph */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
390 /* at a large ppem value (so that the hinting instructions can */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
391 /* properly shift and scale the subglyphs), then extracting the CBox */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
392 /* which can be eventually converted back to font units. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
393 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
394 /* Note that the maximum coordinates are exclusive, which means that */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
395 /* one can compute the width and height of the glyph image (be it in */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
396 /* integer or 26.6 pixels) as: */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
397 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
398 /* { */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
399 /* width = bbox.xMax - bbox.xMin; */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
400 /* height = bbox.yMax - bbox.yMin; */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
401 /* } */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
402 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
403 /* Note also that for 26.6 coordinates, if `bbox_mode' is set to */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
404 /* @FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted, */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
405 /* which corresponds to: */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
406 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
407 /* { */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
408 /* bbox.xMin = FLOOR(bbox.xMin); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
409 /* bbox.yMin = FLOOR(bbox.yMin); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
410 /* bbox.xMax = CEILING(bbox.xMax); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
411 /* bbox.yMax = CEILING(bbox.yMax); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
412 /* } */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
413 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
414 /* To get the bbox in pixel coordinates, set `bbox_mode' to */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
415 /* @FT_GLYPH_BBOX_TRUNCATE. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
416 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
417 /* To get the bbox in grid-fitted pixel coordinates, set `bbox_mode' */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
418 /* to @FT_GLYPH_BBOX_PIXELS. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
419 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
420 FT_EXPORT( void )
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
421 FT_Glyph_Get_CBox( FT_Glyph glyph,
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
422 FT_UInt bbox_mode,
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
423 FT_BBox *acbox );
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
424
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
425
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
426 /*************************************************************************/
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
427 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
428 /* <Function> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
429 /* FT_Glyph_To_Bitmap */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
430 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
431 /* <Description> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
432 /* Convert a given glyph object to a bitmap glyph object. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
433 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
434 /* <InOut> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
435 /* the_glyph :: A pointer to a handle to the target glyph. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
436 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
437 /* <Input> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
438 /* render_mode :: An enumeration that describes how the data is */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
439 /* rendered. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
440 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
441 /* origin :: A pointer to a vector used to translate the glyph */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
442 /* image before rendering. Can be~0 (if no */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
443 /* translation). The origin is expressed in */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
444 /* 26.6 pixels. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
445 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
446 /* destroy :: A boolean that indicates that the original glyph */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
447 /* image should be destroyed by this function. It is */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
448 /* never destroyed in case of error. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
449 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
450 /* <Return> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
451 /* FreeType error code. 0~means success. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
452 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
453 /* <Note> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
454 /* This function does nothing if the glyph format isn't scalable. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
455 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
456 /* The glyph image is translated with the `origin' vector before */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
457 /* rendering. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
458 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
459 /* The first parameter is a pointer to an @FT_Glyph handle, that will */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
460 /* be _replaced_ by this function (with newly allocated data). */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
461 /* Typically, you would use (omitting error handling): */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
462 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
463 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
464 /* { */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
465 /* FT_Glyph glyph; */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
466 /* FT_BitmapGlyph glyph_bitmap; */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
467 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
468 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
469 /* // load glyph */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
470 /* error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAUT ); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
471 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
472 /* // extract glyph image */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
473 /* error = FT_Get_Glyph( face->glyph, &glyph ); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
474 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
475 /* // convert to a bitmap (default render mode + destroying old) */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
476 /* if ( glyph->format != FT_GLYPH_FORMAT_BITMAP ) */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
477 /* { */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
478 /* error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL, */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
479 /* 0, 1 ); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
480 /* if ( error ) // `glyph' unchanged */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
481 /* ... */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
482 /* } */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
483 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
484 /* // access bitmap content by typecasting */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
485 /* glyph_bitmap = (FT_BitmapGlyph)glyph; */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
486 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
487 /* // do funny stuff with it, like blitting/drawing */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
488 /* ... */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
489 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
490 /* // discard glyph image (bitmap or not) */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
491 /* FT_Done_Glyph( glyph ); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
492 /* } */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
493 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
494 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
495 /* Here another example, again without error handling: */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
496 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
497 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
498 /* { */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
499 /* FT_Glyph glyphs[MAX_GLYPHS] */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
500 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
501 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
502 /* ... */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
503 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
504 /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
505 /* error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) || */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
506 /* FT_Get_Glyph ( face->glyph, &glyph[idx] ); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
507 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
508 /* ... */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
509 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
510 /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
511 /* { */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
512 /* FT_Glyph bitmap = glyphs[idx]; */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
513 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
514 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
515 /* ... */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
516 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
517 /* // after this call, `bitmap' no longer points into */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
518 /* // the `glyphs' array (and the old value isn't destroyed) */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
519 /* FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 ); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
520 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
521 /* ... */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
522 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
523 /* FT_Done_Glyph( bitmap ); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
524 /* } */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
525 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
526 /* ... */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
527 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
528 /* for ( idx = 0; i < MAX_GLYPHS; i++ ) */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
529 /* FT_Done_Glyph( glyphs[idx] ); */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
530 /* } */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
531 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
532 FT_EXPORT( FT_Error )
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
533 FT_Glyph_To_Bitmap( FT_Glyph* the_glyph,
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
534 FT_Render_Mode render_mode,
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
535 FT_Vector* origin,
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
536 FT_Bool destroy );
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
537
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
538
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
539 /*************************************************************************/
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
540 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
541 /* <Function> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
542 /* FT_Done_Glyph */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
543 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
544 /* <Description> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
545 /* Destroy a given glyph. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
546 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
547 /* <Input> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
548 /* glyph :: A handle to the target glyph object. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
549 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
550 FT_EXPORT( void )
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
551 FT_Done_Glyph( FT_Glyph glyph );
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
552
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
553 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
554
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
555
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
556 /* other helpful functions */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
557
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
558 /*************************************************************************/
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
559 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
560 /* <Section> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
561 /* computations */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
562 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
563 /*************************************************************************/
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
564
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
565
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
566 /*************************************************************************/
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
567 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
568 /* <Function> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
569 /* FT_Matrix_Multiply */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
570 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
571 /* <Description> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
572 /* Perform the matrix operation `b = a*b'. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
573 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
574 /* <Input> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
575 /* a :: A pointer to matrix `a'. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
576 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
577 /* <InOut> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
578 /* b :: A pointer to matrix `b'. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
579 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
580 /* <Note> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
581 /* The result is undefined if either `a' or `b' is zero. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
582 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
583 FT_EXPORT( void )
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
584 FT_Matrix_Multiply( const FT_Matrix* a,
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
585 FT_Matrix* b );
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
586
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
587
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
588 /*************************************************************************/
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
589 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
590 /* <Function> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
591 /* FT_Matrix_Invert */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
592 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
593 /* <Description> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
594 /* Invert a 2x2 matrix. Return an error if it can't be inverted. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
595 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
596 /* <InOut> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
597 /* matrix :: A pointer to the target matrix. Remains untouched in */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
598 /* case of error. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
599 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
600 /* <Return> */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
601 /* FreeType error code. 0~means success. */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
602 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
603 FT_EXPORT( FT_Error )
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
604 FT_Matrix_Invert( FT_Matrix* matrix );
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
605
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
606
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
607 /* */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
608
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
609
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
610 FT_END_HEADER
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
611
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
612 #endif /* __FTGLYPH_H__ */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
613
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
614
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
615 /* END */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
616
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
617
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
618 /* Local Variables: */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
619 /* coding: utf-8 */
a8ab91f49cac add freetype2,ft2build.h
Takao YONAMINE <e095763@ie.u-ryukyu.ac.jp>
parents:
diff changeset
620 /* End: */