1 | /***************************************************************************/
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2 | /* */
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3 | /* ftobjs.h */
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4 | /* */
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5 | /* The FreeType private base classes (specification). */
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6 | /* */
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7 | /* Copyright 1996-2001, 2002, 2003, 2004, 2005 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 all internal FreeType classes. */
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22 | /* */
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23 | /*************************************************************************/
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24 |
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25 |
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26 | #ifndef __FTOBJS_H__
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27 | #define __FTOBJS_H__
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28 |
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29 | #include <ft2build.h>
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30 | #include FT_RENDER_H
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31 | #include FT_SIZES_H
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32 | #include FT_INTERNAL_MEMORY_H
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33 | #include FT_INTERNAL_GLYPH_LOADER_H
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34 | #include FT_INTERNAL_DRIVER_H
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35 | #include FT_INTERNAL_AUTOHINT_H
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36 | #include FT_INTERNAL_SERVICE_H
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37 |
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38 | #ifdef FT_CONFIG_OPTION_INCREMENTAL
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39 | #include FT_INCREMENTAL_H
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40 | #endif
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41 |
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42 |
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43 | FT_BEGIN_HEADER
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44 |
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45 |
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46 | /*************************************************************************/
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47 | /* */
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48 | /* Some generic definitions. */
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49 | /* */
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50 | #ifndef TRUE
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51 | #define TRUE 1
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52 | #endif
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53 |
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54 | #ifndef FALSE
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55 | #define FALSE 0
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56 | #endif
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57 |
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58 | #ifndef NULL
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59 | #define NULL (void*)0
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60 | #endif
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61 |
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62 |
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63 | /*************************************************************************/
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64 | /* */
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65 | /* The min and max functions missing in C. As usual, be careful not to */
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66 | /* write things like FT_MIN( a++, b++ ) to avoid side effects. */
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67 | /* */
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68 | #define FT_MIN( a, b ) ( (a) < (b) ? (a) : (b) )
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69 | #define FT_MAX( a, b ) ( (a) > (b) ? (a) : (b) )
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70 |
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71 | #define FT_ABS( a ) ( (a) < 0 ? -(a) : (a) )
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72 |
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73 |
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74 | #define FT_PAD_FLOOR( x, n ) ( (x) & ~((n)-1) )
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75 | #define FT_PAD_ROUND( x, n ) FT_PAD_FLOOR( (x) + ((n)/2), n )
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76 | #define FT_PAD_CEIL( x, n ) FT_PAD_FLOOR( (x) + ((n)-1), n )
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77 |
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78 | #define FT_PIX_FLOOR( x ) ( (x) & ~63 )
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79 | #define FT_PIX_ROUND( x ) FT_PIX_FLOOR( (x) + 32 )
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80 | #define FT_PIX_CEIL( x ) FT_PIX_FLOOR( (x) + 63 )
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81 |
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82 |
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83 | /*
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84 | * Return the highest power of 2 that is <= value; this correspond to
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85 | * the highest bit in a given 32-bit value.
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86 | */
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87 | FT_BASE( FT_UInt32 )
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88 | ft_highpow2( FT_UInt32 value );
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89 |
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90 |
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91 | /*************************************************************************/
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92 | /*************************************************************************/
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93 | /*************************************************************************/
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94 | /**** ****/
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95 | /**** ****/
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96 | /**** C H A R M A P S ****/
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97 | /**** ****/
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98 | /**** ****/
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99 | /*************************************************************************/
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100 | /*************************************************************************/
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101 | /*************************************************************************/
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102 |
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103 | /* handle to internal charmap object */
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104 | typedef struct FT_CMapRec_* FT_CMap;
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105 |
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106 | /* handle to charmap class structure */
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107 | typedef const struct FT_CMap_ClassRec_* FT_CMap_Class;
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108 |
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109 | /* internal charmap object structure */
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110 | typedef struct FT_CMapRec_
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111 | {
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112 | FT_CharMapRec charmap;
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113 | FT_CMap_Class clazz;
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114 |
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115 | } FT_CMapRec;
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116 |
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117 | /* typecase any pointer to a charmap handle */
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118 | #define FT_CMAP( x ) ((FT_CMap)( x ))
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119 |
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120 | /* obvious macros */
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121 | #define FT_CMAP_PLATFORM_ID( x ) FT_CMAP( x )->charmap.platform_id
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122 | #define FT_CMAP_ENCODING_ID( x ) FT_CMAP( x )->charmap.encoding_id
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123 | #define FT_CMAP_ENCODING( x ) FT_CMAP( x )->charmap.encoding
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124 | #define FT_CMAP_FACE( x ) FT_CMAP( x )->charmap.face
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125 |
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126 |
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127 | /* class method definitions */
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128 | typedef FT_Error
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129 | (*FT_CMap_InitFunc)( FT_CMap cmap,
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130 | FT_Pointer init_data );
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131 |
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132 | typedef void
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133 | (*FT_CMap_DoneFunc)( FT_CMap cmap );
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134 |
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135 | typedef FT_UInt
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136 | (*FT_CMap_CharIndexFunc)( FT_CMap cmap,
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137 | FT_UInt32 char_code );
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138 |
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139 | typedef FT_UInt
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140 | (*FT_CMap_CharNextFunc)( FT_CMap cmap,
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141 | FT_UInt32 *achar_code );
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142 |
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143 |
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144 | typedef struct FT_CMap_ClassRec_
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145 | {
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146 | FT_ULong size;
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147 | FT_CMap_InitFunc init;
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148 | FT_CMap_DoneFunc done;
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149 | FT_CMap_CharIndexFunc char_index;
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150 | FT_CMap_CharNextFunc char_next;
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151 |
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152 | } FT_CMap_ClassRec;
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153 |
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154 |
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155 | /* create a new charmap and add it to charmap->face */
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156 | FT_BASE( FT_Error )
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157 | FT_CMap_New( FT_CMap_Class clazz,
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158 | FT_Pointer init_data,
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159 | FT_CharMap charmap,
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160 | FT_CMap *acmap );
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161 |
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162 | /* destroy a charmap and remove it from face's list */
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163 | FT_BASE( void )
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164 | FT_CMap_Done( FT_CMap cmap );
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165 |
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166 |
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167 | /*************************************************************************/
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168 | /* */
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169 | /* <Struct> */
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170 | /* FT_Face_InternalRec */
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171 | /* */
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172 | /* <Description> */
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173 | /* This structure contains the internal fields of each FT_Face */
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174 | /* object. These fields may change between different releases of */
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175 | /* FreeType. */
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176 | /* */
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177 | /* <Fields> */
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178 | /* max_points :: */
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179 | /* The maximal number of points used to store the vectorial outline */
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180 | /* of any glyph in this face. If this value cannot be known in */
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181 | /* advance, or if the face isn't scalable, this should be set to 0. */
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182 | /* Only relevant for scalable formats. */
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183 | /* */
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184 | /* max_contours :: */
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185 | /* The maximal number of contours used to store the vectorial */
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186 | /* outline of any glyph in this face. If this value cannot be */
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187 | /* known in advance, or if the face isn't scalable, this should be */
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188 | /* set to 0. Only relevant for scalable formats. */
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189 | /* */
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190 | /* transform_matrix :: */
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191 | /* A 2x2 matrix of 16.16 coefficients used to transform glyph */
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192 | /* outlines after they are loaded from the font. Only used by the */
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193 | /* convenience functions. */
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194 | /* */
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195 | /* transform_delta :: */
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196 | /* A translation vector used to transform glyph outlines after they */
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197 | /* are loaded from the font. Only used by the convenience */
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198 | /* functions. */
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199 | /* */
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200 | /* transform_flags :: */
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201 | /* Some flags used to classify the transform. Only used by the */
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202 | /* convenience functions. */
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203 | /* */
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204 | /* services :: */
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205 | /* A cache for frequently used services. It should be only */
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206 | /* accessed with the macro `FT_FACE_LOOKUP_SERVICE'. */
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207 | /* */
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208 | /* incremental_interface :: */
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209 | /* If non-null, the interface through which glyph data and metrics */
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210 | /* are loaded incrementally for faces that do not provide all of */
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211 | /* this data when first opened. This field exists only if */
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212 | /* @FT_CONFIG_OPTION_INCREMENTAL is defined. */
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213 | /* */
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214 | typedef struct FT_Face_InternalRec_
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215 | {
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216 | FT_UShort max_points;
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217 | FT_Short max_contours;
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218 |
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219 | FT_Matrix transform_matrix;
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220 | FT_Vector transform_delta;
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221 | FT_Int transform_flags;
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222 |
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223 | FT_ServiceCacheRec services;
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224 |
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225 | #ifdef FT_CONFIG_OPTION_INCREMENTAL
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226 | FT_Incremental_InterfaceRec* incremental_interface;
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227 | #endif
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228 |
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229 | } FT_Face_InternalRec;
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230 |
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231 |
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232 | /*************************************************************************/
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233 | /* */
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234 | /* <Struct> */
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235 | /* FT_Slot_InternalRec */
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236 | /* */
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237 | /* <Description> */
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238 | /* This structure contains the internal fields of each FT_GlyphSlot */
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239 | /* object. These fields may change between different releases of */
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240 | /* FreeType. */
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241 | /* */
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242 | /* <Fields> */
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243 | /* loader :: The glyph loader object used to load outlines */
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244 | /* into the glyph slot. */
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245 | /* */
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246 | /* flags :: Possible values are zero or */
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247 | /* FT_GLYPH_OWN_BITMAP. The latter indicates */
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248 | /* that the FT_GlyphSlot structure owns the */
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249 | /* bitmap buffer. */
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250 | /* */
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251 | /* glyph_transformed :: Boolean. Set to TRUE when the loaded glyph */
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252 | /* must be transformed through a specific */
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253 | /* font transformation. This is _not_ the same */
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254 | /* as the face transform set through */
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255 | /* FT_Set_Transform(). */
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256 | /* */
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257 | /* glyph_matrix :: The 2x2 matrix corresponding to the glyph */
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258 | /* transformation, if necessary. */
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259 | /* */
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260 | /* glyph_delta :: The 2d translation vector corresponding to */
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261 | /* the glyph transformation, if necessary. */
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262 | /* */
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263 | /* glyph_hints :: Format-specific glyph hints management. */
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264 | /* */
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265 |
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266 | #define FT_GLYPH_OWN_BITMAP 0x1
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267 |
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268 | typedef struct FT_Slot_InternalRec_
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269 | {
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270 | FT_GlyphLoader loader;
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271 | FT_UInt flags;
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272 | FT_Bool glyph_transformed;
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273 | FT_Matrix glyph_matrix;
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274 | FT_Vector glyph_delta;
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275 | void* glyph_hints;
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276 |
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277 | } FT_GlyphSlot_InternalRec;
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278 |
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279 |
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280 | /*************************************************************************/
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281 | /*************************************************************************/
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282 | /*************************************************************************/
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283 | /**** ****/
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284 | /**** ****/
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285 | /**** M O D U L E S ****/
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286 | /**** ****/
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287 | /**** ****/
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288 | /*************************************************************************/
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289 | /*************************************************************************/
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290 | /*************************************************************************/
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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 | /* <Struct> */
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296 | /* FT_ModuleRec */
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297 | /* */
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298 | /* <Description> */
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299 | /* A module object instance. */
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300 | /* */
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301 | /* <Fields> */
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302 | /* clazz :: A pointer to the module's class. */
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303 | /* */
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304 | /* library :: A handle to the parent library object. */
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305 | /* */
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306 | /* memory :: A handle to the memory manager. */
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307 | /* */
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308 | /* generic :: A generic structure for user-level extensibility (?). */
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309 | /* */
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310 | typedef struct FT_ModuleRec_
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311 | {
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312 | FT_Module_Class* clazz;
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313 | FT_Library library;
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314 | FT_Memory memory;
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315 | FT_Generic generic;
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316 |
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317 | } FT_ModuleRec;
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318 |
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319 |
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320 | /* typecast an object to a FT_Module */
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321 | #define FT_MODULE( x ) ((FT_Module)( x ))
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322 | #define FT_MODULE_CLASS( x ) FT_MODULE( x )->clazz
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323 | #define FT_MODULE_LIBRARY( x ) FT_MODULE( x )->library
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324 | #define FT_MODULE_MEMORY( x ) FT_MODULE( x )->memory
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325 |
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326 |
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327 | #define FT_MODULE_IS_DRIVER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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328 | FT_MODULE_FONT_DRIVER )
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329 |
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330 | #define FT_MODULE_IS_RENDERER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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331 | FT_MODULE_RENDERER )
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332 |
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333 | #define FT_MODULE_IS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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334 | FT_MODULE_HINTER )
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335 |
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336 | #define FT_MODULE_IS_STYLER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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337 | FT_MODULE_STYLER )
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338 |
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339 | #define FT_DRIVER_IS_SCALABLE( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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340 | FT_MODULE_DRIVER_SCALABLE )
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341 |
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342 | #define FT_DRIVER_USES_OUTLINES( x ) !( FT_MODULE_CLASS( x )->module_flags & \
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343 | FT_MODULE_DRIVER_NO_OUTLINES )
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344 |
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345 | #define FT_DRIVER_HAS_HINTER( x ) ( FT_MODULE_CLASS( x )->module_flags & \
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346 | FT_MODULE_DRIVER_HAS_HINTER )
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347 |
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348 |
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349 | /*************************************************************************/
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350 | /* */
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351 | /* <Function> */
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352 | /* FT_Get_Module_Interface */
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353 | /* */
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354 | /* <Description> */
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355 | /* Finds a module and returns its specific interface as a typeless */
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356 | /* pointer. */
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357 | /* */
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358 | /* <Input> */
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359 | /* library :: A handle to the library object. */
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360 | /* */
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361 | /* module_name :: The module's name (as an ASCII string). */
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362 | /* */
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363 | /* <Return> */
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364 | /* A module-specific interface if available, 0 otherwise. */
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365 | /* */
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366 | /* <Note> */
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367 | /* You should better be familiar with FreeType internals to know */
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368 | /* which module to look for, and what its interface is :-) */
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369 | /* */
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370 | FT_BASE( const void* )
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371 | FT_Get_Module_Interface( FT_Library library,
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372 | const char* mod_name );
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373 |
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374 | FT_BASE( FT_Pointer )
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375 | ft_module_get_service( FT_Module module,
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376 | const char* service_id );
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377 |
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378 | /* */
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379 |
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380 |
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381 | /*************************************************************************/
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382 | /*************************************************************************/
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383 | /*************************************************************************/
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384 | /**** ****/
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385 | /**** ****/
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386 | /**** FACE, SIZE & GLYPH SLOT OBJECTS ****/
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387 | /**** ****/
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388 | /**** ****/
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389 | /*************************************************************************/
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390 | /*************************************************************************/
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391 | /*************************************************************************/
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392 |
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393 | /* a few macros used to perform easy typecasts with minimal brain damage */
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394 |
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395 | #define FT_FACE( x ) ((FT_Face)(x))
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396 | #define FT_SIZE( x ) ((FT_Size)(x))
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397 | #define FT_SLOT( x ) ((FT_GlyphSlot)(x))
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398 |
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399 | #define FT_FACE_DRIVER( x ) FT_FACE( x )->driver
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400 | #define FT_FACE_LIBRARY( x ) FT_FACE_DRIVER( x )->root.library
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401 | #define FT_FACE_MEMORY( x ) FT_FACE( x )->memory
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402 | #define FT_FACE_STREAM( x ) FT_FACE( x )->stream
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403 |
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404 | #define FT_SIZE_FACE( x ) FT_SIZE( x )->face
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405 | #define FT_SLOT_FACE( x ) FT_SLOT( x )->face
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406 |
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407 | #define FT_FACE_SLOT( x ) FT_FACE( x )->glyph
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408 | #define FT_FACE_SIZE( x ) FT_FACE( x )->size
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409 |
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410 |
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411 | /*************************************************************************/
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412 | /* */
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413 | /* <Function> */
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414 | /* FT_New_GlyphSlot */
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415 | /* */
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416 | /* <Description> */
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417 | /* It is sometimes useful to have more than one glyph slot for a */
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418 | /* given face object. This function is used to create additional */
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419 | /* slots. All of them are automatically discarded when the face is */
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420 | /* destroyed. */
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421 | /* */
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422 | /* <Input> */
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423 | /* face :: A handle to a parent face object. */
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424 | /* */
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425 | /* <Output> */
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426 | /* aslot :: A handle to a new glyph slot object. */
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427 | /* */
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428 | /* <Return> */
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429 | /* FreeType error code. 0 means success. */
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430 | /* */
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431 | FT_BASE( FT_Error )
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432 | FT_New_GlyphSlot( FT_Face face,
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433 | FT_GlyphSlot *aslot );
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434 |
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435 |
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436 | /*************************************************************************/
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437 | /* */
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438 | /* <Function> */
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439 | /* FT_Done_GlyphSlot */
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440 | /* */
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441 | /* <Description> */
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442 | /* Destroys a given glyph slot. Remember however that all slots are */
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443 | /* automatically destroyed with its parent. Using this function is */
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444 | /* not always mandatory. */
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445 | /* */
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446 | /* <Input> */
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447 | /* slot :: A handle to a target glyph slot. */
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448 | /* */
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449 | FT_BASE( void )
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450 | FT_Done_GlyphSlot( FT_GlyphSlot slot );
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451 |
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452 | /* */
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453 |
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454 | /*
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455 | * grid-fit slot->metrics
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456 | */
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457 | FT_BASE( void )
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458 | ft_glyphslot_grid_fit_metrics( FT_GlyphSlot slot );
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459 |
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460 |
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461 | /*
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462 | * Free the bitmap of a given glyphslot when needed
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463 | * (i.e., only when it was allocated with ft_glyphslot_alloc_bitmap).
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464 | */
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465 | FT_BASE( void )
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466 | ft_glyphslot_free_bitmap( FT_GlyphSlot slot );
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467 |
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468 |
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469 | /*
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470 | * Allocate a new bitmap buffer in a glyph slot.
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471 | */
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472 | FT_BASE( FT_Error )
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473 | ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot,
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474 | FT_ULong size );
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475 |
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---|
476 |
|
---|
477 | /*
|
---|
478 | * Set the bitmap buffer in a glyph slot to a given pointer.
|
---|
479 | * The buffer will not be freed by a later call to ft_glyphslot_free_bitmap.
|
---|
480 | */
|
---|
481 | FT_BASE( void )
|
---|
482 | ft_glyphslot_set_bitmap( FT_GlyphSlot slot,
|
---|
483 | FT_Byte* buffer );
|
---|
484 |
|
---|
485 |
|
---|
486 | /*************************************************************************/
|
---|
487 | /*************************************************************************/
|
---|
488 | /*************************************************************************/
|
---|
489 | /**** ****/
|
---|
490 | /**** ****/
|
---|
491 | /**** R E N D E R E R S ****/
|
---|
492 | /**** ****/
|
---|
493 | /**** ****/
|
---|
494 | /*************************************************************************/
|
---|
495 | /*************************************************************************/
|
---|
496 | /*************************************************************************/
|
---|
497 |
|
---|
498 |
|
---|
499 | #define FT_RENDERER( x ) ((FT_Renderer)( x ))
|
---|
500 | #define FT_GLYPH( x ) ((FT_Glyph)( x ))
|
---|
501 | #define FT_BITMAP_GLYPH( x ) ((FT_BitmapGlyph)( x ))
|
---|
502 | #define FT_OUTLINE_GLYPH( x ) ((FT_OutlineGlyph)( x ))
|
---|
503 |
|
---|
504 |
|
---|
505 | typedef struct FT_RendererRec_
|
---|
506 | {
|
---|
507 | FT_ModuleRec root;
|
---|
508 | FT_Renderer_Class* clazz;
|
---|
509 | FT_Glyph_Format glyph_format;
|
---|
510 | FT_Glyph_Class glyph_class;
|
---|
511 |
|
---|
512 | FT_Raster raster;
|
---|
513 | FT_Raster_Render_Func raster_render;
|
---|
514 | FT_Renderer_RenderFunc render;
|
---|
515 |
|
---|
516 | } FT_RendererRec;
|
---|
517 |
|
---|
518 |
|
---|
519 | /*************************************************************************/
|
---|
520 | /*************************************************************************/
|
---|
521 | /*************************************************************************/
|
---|
522 | /**** ****/
|
---|
523 | /**** ****/
|
---|
524 | /**** F O N T D R I V E R S ****/
|
---|
525 | /**** ****/
|
---|
526 | /**** ****/
|
---|
527 | /*************************************************************************/
|
---|
528 | /*************************************************************************/
|
---|
529 | /*************************************************************************/
|
---|
530 |
|
---|
531 |
|
---|
532 | /* typecast a module into a driver easily */
|
---|
533 | #define FT_DRIVER( x ) ((FT_Driver)(x))
|
---|
534 |
|
---|
535 | /* typecast a module as a driver, and get its driver class */
|
---|
536 | #define FT_DRIVER_CLASS( x ) FT_DRIVER( x )->clazz
|
---|
537 |
|
---|
538 |
|
---|
539 | /*************************************************************************/
|
---|
540 | /* */
|
---|
541 | /* <Struct> */
|
---|
542 | /* FT_DriverRec */
|
---|
543 | /* */
|
---|
544 | /* <Description> */
|
---|
545 | /* The root font driver class. A font driver is responsible for */
|
---|
546 | /* managing and loading font files of a given format. */
|
---|
547 | /* */
|
---|
548 | /* <Fields> */
|
---|
549 | /* root :: Contains the fields of the root module class. */
|
---|
550 | /* */
|
---|
551 | /* clazz :: A pointer to the font driver's class. Note that */
|
---|
552 | /* this is NOT root.clazz. `class' wasn't used */
|
---|
553 | /* as it is a reserved word in C++. */
|
---|
554 | /* */
|
---|
555 | /* faces_list :: The list of faces currently opened by this */
|
---|
556 | /* driver. */
|
---|
557 | /* */
|
---|
558 | /* extensions :: A typeless pointer to the driver's extensions */
|
---|
559 | /* registry, if they are supported through the */
|
---|
560 | /* configuration macro FT_CONFIG_OPTION_EXTENSIONS. */
|
---|
561 | /* */
|
---|
562 | /* glyph_loader :: The glyph loader for all faces managed by this */
|
---|
563 | /* driver. This object isn't defined for unscalable */
|
---|
564 | /* formats. */
|
---|
565 | /* */
|
---|
566 | typedef struct FT_DriverRec_
|
---|
567 | {
|
---|
568 | FT_ModuleRec root;
|
---|
569 | FT_Driver_Class clazz;
|
---|
570 |
|
---|
571 | FT_ListRec faces_list;
|
---|
572 | void* extensions;
|
---|
573 |
|
---|
574 | FT_GlyphLoader glyph_loader;
|
---|
575 |
|
---|
576 | } FT_DriverRec;
|
---|
577 |
|
---|
578 |
|
---|
579 | /*************************************************************************/
|
---|
580 | /*************************************************************************/
|
---|
581 | /*************************************************************************/
|
---|
582 | /**** ****/
|
---|
583 | /**** ****/
|
---|
584 | /**** L I B R A R I E S ****/
|
---|
585 | /**** ****/
|
---|
586 | /**** ****/
|
---|
587 | /*************************************************************************/
|
---|
588 | /*************************************************************************/
|
---|
589 | /*************************************************************************/
|
---|
590 |
|
---|
591 |
|
---|
592 | /* this hook is used by the TrueType debugger. It must be set to an alternate
|
---|
593 | * truetype bytecode interpreter function
|
---|
594 | */
|
---|
595 | #define FT_DEBUG_HOOK_TRUETYPE 0
|
---|
596 |
|
---|
597 |
|
---|
598 | /* set this debug hook to a non-null pointer to force unpatented hinting
|
---|
599 | * for all faces when both TT_CONFIG_OPTION_BYTECODE_INTERPRETER and
|
---|
600 | * TT_CONFIG_OPTION_UNPATENTED_HINTING are defined. this is only used
|
---|
601 | * during debugging
|
---|
602 | */
|
---|
603 | #define FT_DEBUG_HOOK_UNPATENTED_HINTING 1
|
---|
604 |
|
---|
605 |
|
---|
606 | /*************************************************************************/
|
---|
607 | /* */
|
---|
608 | /* <Struct> */
|
---|
609 | /* FT_LibraryRec */
|
---|
610 | /* */
|
---|
611 | /* <Description> */
|
---|
612 | /* The FreeType library class. This is the root of all FreeType */
|
---|
613 | /* data. Use FT_New_Library() to create a library object, and */
|
---|
614 | /* FT_Done_Library() to discard it and all child objects. */
|
---|
615 | /* */
|
---|
616 | /* <Fields> */
|
---|
617 | /* memory :: The library's memory object. Manages memory */
|
---|
618 | /* allocation. */
|
---|
619 | /* */
|
---|
620 | /* generic :: Client data variable. Used to extend the */
|
---|
621 | /* Library class by higher levels and clients. */
|
---|
622 | /* */
|
---|
623 | /* version_major :: The major version number of the library. */
|
---|
624 | /* */
|
---|
625 | /* version_minor :: The minor version number of the library. */
|
---|
626 | /* */
|
---|
627 | /* version_patch :: The current patch level of the library. */
|
---|
628 | /* */
|
---|
629 | /* num_modules :: The number of modules currently registered */
|
---|
630 | /* within this library. This is set to 0 for new */
|
---|
631 | /* libraries. New modules are added through the */
|
---|
632 | /* FT_Add_Module() API function. */
|
---|
633 | /* */
|
---|
634 | /* modules :: A table used to store handles to the currently */
|
---|
635 | /* registered modules. Note that each font driver */
|
---|
636 | /* contains a list of its opened faces. */
|
---|
637 | /* */
|
---|
638 | /* renderers :: The list of renderers currently registered */
|
---|
639 | /* within the library. */
|
---|
640 | /* */
|
---|
641 | /* cur_renderer :: The current outline renderer. This is a */
|
---|
642 | /* shortcut used to avoid parsing the list on */
|
---|
643 | /* each call to FT_Outline_Render(). It is a */
|
---|
644 | /* handle to the current renderer for the */
|
---|
645 | /* FT_GLYPH_FORMAT_OUTLINE format. */
|
---|
646 | /* */
|
---|
647 | /* auto_hinter :: XXX */
|
---|
648 | /* */
|
---|
649 | /* raster_pool :: The raster object's render pool. This can */
|
---|
650 | /* ideally be changed dynamically at run-time. */
|
---|
651 | /* */
|
---|
652 | /* raster_pool_size :: The size of the render pool in bytes. */
|
---|
653 | /* */
|
---|
654 | /* debug_hooks :: XXX */
|
---|
655 | /* */
|
---|
656 | typedef struct FT_LibraryRec_
|
---|
657 | {
|
---|
658 | FT_Memory memory; /* library's memory manager */
|
---|
659 |
|
---|
660 | FT_Generic generic;
|
---|
661 |
|
---|
662 | FT_Int version_major;
|
---|
663 | FT_Int version_minor;
|
---|
664 | FT_Int version_patch;
|
---|
665 |
|
---|
666 | FT_UInt num_modules;
|
---|
667 | FT_Module modules[FT_MAX_MODULES]; /* module objects */
|
---|
668 |
|
---|
669 | FT_ListRec renderers; /* list of renderers */
|
---|
670 | FT_Renderer cur_renderer; /* current outline renderer */
|
---|
671 | FT_Module auto_hinter;
|
---|
672 |
|
---|
673 | FT_Byte* raster_pool; /* scan-line conversion */
|
---|
674 | /* render pool */
|
---|
675 | FT_ULong raster_pool_size; /* size of render pool in bytes */
|
---|
676 |
|
---|
677 | FT_DebugHook_Func debug_hooks[4];
|
---|
678 |
|
---|
679 | } FT_LibraryRec;
|
---|
680 |
|
---|
681 |
|
---|
682 | FT_BASE( FT_Renderer )
|
---|
683 | FT_Lookup_Renderer( FT_Library library,
|
---|
684 | FT_Glyph_Format format,
|
---|
685 | FT_ListNode* node );
|
---|
686 |
|
---|
687 | FT_BASE( FT_Error )
|
---|
688 | FT_Render_Glyph_Internal( FT_Library library,
|
---|
689 | FT_GlyphSlot slot,
|
---|
690 | FT_Render_Mode render_mode );
|
---|
691 |
|
---|
692 | typedef const char*
|
---|
693 | (*FT_Face_GetPostscriptNameFunc)( FT_Face face );
|
---|
694 |
|
---|
695 | typedef FT_Error
|
---|
696 | (*FT_Face_GetGlyphNameFunc)( FT_Face face,
|
---|
697 | FT_UInt glyph_index,
|
---|
698 | FT_Pointer buffer,
|
---|
699 | FT_UInt buffer_max );
|
---|
700 |
|
---|
701 | typedef FT_UInt
|
---|
702 | (*FT_Face_GetGlyphNameIndexFunc)( FT_Face face,
|
---|
703 | FT_String* glyph_name );
|
---|
704 |
|
---|
705 |
|
---|
706 | #ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM
|
---|
707 |
|
---|
708 | /*************************************************************************/
|
---|
709 | /* */
|
---|
710 | /* <Function> */
|
---|
711 | /* FT_New_Memory */
|
---|
712 | /* */
|
---|
713 | /* <Description> */
|
---|
714 | /* Creates a new memory object. */
|
---|
715 | /* */
|
---|
716 | /* <Return> */
|
---|
717 | /* A pointer to the new memory object. 0 in case of error. */
|
---|
718 | /* */
|
---|
719 | FT_EXPORT( FT_Memory )
|
---|
720 | FT_New_Memory( void );
|
---|
721 |
|
---|
722 |
|
---|
723 | /*************************************************************************/
|
---|
724 | /* */
|
---|
725 | /* <Function> */
|
---|
726 | /* FT_Done_Memory */
|
---|
727 | /* */
|
---|
728 | /* <Description> */
|
---|
729 | /* Discards memory manager. */
|
---|
730 | /* */
|
---|
731 | /* <Input> */
|
---|
732 | /* memory :: A handle to the memory manager. */
|
---|
733 | /* */
|
---|
734 | FT_EXPORT( void )
|
---|
735 | FT_Done_Memory( FT_Memory memory );
|
---|
736 |
|
---|
737 | #endif /* !FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */
|
---|
738 |
|
---|
739 |
|
---|
740 | /* Define default raster's interface. The default raster is located in */
|
---|
741 | /* `src/base/ftraster.c'. */
|
---|
742 | /* */
|
---|
743 | /* Client applications can register new rasters through the */
|
---|
744 | /* FT_Set_Raster() API. */
|
---|
745 |
|
---|
746 | #ifndef FT_NO_DEFAULT_RASTER
|
---|
747 | FT_EXPORT_VAR( FT_Raster_Funcs ) ft_default_raster;
|
---|
748 | #endif
|
---|
749 |
|
---|
750 |
|
---|
751 | FT_END_HEADER
|
---|
752 |
|
---|
753 | #endif /* __FTOBJS_H__ */
|
---|
754 |
|
---|
755 |
|
---|
756 | /* END */
|
---|