1 | /***************************************************************************/
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2 | /* */
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3 | /* ftoption.h */
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4 | /* */
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5 | /* User-selectable configuration macros (specification only). */
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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 | #ifndef __FTOPTION_H__
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20 | #define __FTOPTION_H__
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21 |
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22 |
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23 | #include <ft2build.h>
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24 |
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25 |
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26 | FT_BEGIN_HEADER
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27 |
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28 | /*************************************************************************/
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29 | /* */
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30 | /* USER-SELECTABLE CONFIGURATION MACROS */
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31 | /* */
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32 | /* This file contains the default configuration macro definitions for */
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33 | /* a standard build of the FreeType library. There are three ways to */
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34 | /* use this file to build project-specific versions of the library: */
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35 | /* */
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36 | /* - You can modify this file by hand, but this is not recommended in */
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37 | /* cases where you would like to build several versions of the */
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38 | /* library from a single source directory. */
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39 | /* */
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40 | /* - You can put a copy of this file in your build directory, more */
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41 | /* precisely in "$BUILD/freetype/config/ftoption.h", where "$BUILD" */
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42 | /* is the name of a directory that is included _before_ the FreeType */
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43 | /* include path during compilation. */
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44 | /* */
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45 | /* The default FreeType Makefiles and Jamfiles use the build */
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46 | /* directory "builds/<system>" by default, but you can easily change */
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47 | /* that for your own projects. */
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48 | /* */
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49 | /* - Copy the file <ft2build.h> to "$BUILD/ft2build.h" and modify it */
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50 | /* slightly to pre-define the macro FT_CONFIG_OPTIONS_H used to */
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51 | /* locate this file during the build. For example, */
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52 | /* */
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53 | /* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */
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54 | /* #include <freetype/config/ftheader.h> */
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55 | /* */
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56 | /* will use "$BUILD/myftoptions.h" instead of this file for macro */
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57 | /* definitions. */
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58 | /* */
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59 | /* Note also that you can similarly pre-define the macro */
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60 | /* FT_CONFIG_MODULES_H used to locate the file listing of the modules */
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61 | /* that are statically linked to the library at compile time. By */
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62 | /* default, this file is <freetype/config/ftmodule.h>. */
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63 | /* */
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64 | /* We highly recommend using the third method whenever possible. */
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65 | /* */
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66 | /*************************************************************************/
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67 |
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68 |
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69 | /*************************************************************************/
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70 | /*************************************************************************/
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71 | /**** ****/
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72 | /**** G E N E R A L F R E E T Y P E 2 C O N F I G U R A T I O N ****/
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73 | /**** ****/
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74 | /*************************************************************************/
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75 | /*************************************************************************/
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76 |
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77 |
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78 | /*************************************************************************/
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79 | /* */
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80 | /* Many compilers provide a non-ANSI 64-bit data type that can be used */
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81 | /* by FreeType to speed up some computations. However, this will create */
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82 | /* some problems when compiling the library in strict ANSI mode. */
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83 | /* */
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84 | /* For this reason, the use of 64-bit integers is normally disabled when */
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85 | /* the __STDC__ macro is defined. You can however disable this by */
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86 | /* defining the macro FT_CONFIG_OPTION_FORCE_INT64 here. */
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87 | /* */
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88 | /* For most compilers, this will only create compilation warnings when */
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89 | /* building the library. */
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90 | /* */
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91 | /* ObNote: The compiler-specific 64-bit integers are detected in the */
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92 | /* file "ftconfig.h" either statically or through the */
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93 | /* `configure' script on supported platforms. */
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94 | /* */
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95 | #undef FT_CONFIG_OPTION_FORCE_INT64
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96 |
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97 |
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98 | /*************************************************************************/
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99 | /* */
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100 | /* LZW-compressed file support. */
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101 | /* */
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102 | /* FreeType now handles font files that have been compressed with the */
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103 | /* 'compress' program. This is mostly used to parse many of the PCF */
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104 | /* files that come with various X11 distributions. The implementation */
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105 | /* uses NetBSD's `zopen' to partially uncompress the file on the fly */
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106 | /* (see src/lzw/ftgzip.c). */
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107 | /* */
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108 | /* Define this macro if you want to enable this `feature'. */
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109 | /* */
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110 | #define FT_CONFIG_OPTION_USE_LZW
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111 |
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112 |
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113 | /*************************************************************************/
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114 | /* */
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115 | /* Gzip-compressed file support. */
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116 | /* */
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117 | /* FreeType now handles font files that have been compressed with the */
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118 | /* 'gzip' program. This is mostly used to parse many of the PCF files */
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119 | /* that come with XFree86. The implementation uses `zlib' to */
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120 | /* partially uncompress the file on the fly (see src/gzip/ftgzip.c). */
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121 | /* */
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122 | /* Define this macro if you want to enable this `feature'. See also */
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123 | /* the macro FT_CONFIG_OPTION_SYSTEM_ZLIB below. */
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124 | /* */
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125 | #define FT_CONFIG_OPTION_USE_ZLIB
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126 |
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127 |
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128 | /*************************************************************************/
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129 | /* */
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130 | /* ZLib library selection */
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131 | /* */
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132 | /* This macro is only used when FT_CONFIG_OPTION_USE_ZLIB is defined. */
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133 | /* It allows FreeType's `ftgzip' component to link to the system's */
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134 | /* installation of the ZLib library. This is useful on systems like */
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135 | /* Unix or VMS where it generally is already available. */
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136 | /* */
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137 | /* If you let it undefined, the component will use its own copy */
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138 | /* of the zlib sources instead. These have been modified to be */
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139 | /* included directly within the component and *not* export external */
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140 | /* function names. This allows you to link any program with FreeType */
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141 | /* _and_ ZLib without linking conflicts. */
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142 | /* */
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143 | /* Do not #undef this macro here since the build system might define */
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144 | /* it for certain configurations only. */
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145 | /* */
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146 | /* #define FT_CONFIG_OPTION_SYSTEM_ZLIB */
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147 |
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148 |
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149 | /*************************************************************************/
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150 | /* */
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151 | /* DLL export compilation */
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152 | /* */
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153 | /* When compiling FreeType as a DLL, some systems/compilers need a */
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154 | /* special keyword in front OR after the return type of function */
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155 | /* declarations. */
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156 | /* */
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157 | /* Two macros are used within the FreeType source code to define */
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158 | /* exported library functions: FT_EXPORT and FT_EXPORT_DEF. */
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159 | /* */
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160 | /* FT_EXPORT( return_type ) */
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161 | /* */
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162 | /* is used in a function declaration, as in */
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163 | /* */
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164 | /* FT_EXPORT( FT_Error ) */
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165 | /* FT_Init_FreeType( FT_Library* alibrary ); */
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166 | /* */
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167 | /* */
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168 | /* FT_EXPORT_DEF( return_type ) */
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169 | /* */
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170 | /* is used in a function definition, as in */
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171 | /* */
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172 | /* FT_EXPORT_DEF( FT_Error ) */
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173 | /* FT_Init_FreeType( FT_Library* alibrary ) */
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174 | /* { */
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175 | /* ... some code ... */
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176 | /* return FT_Err_Ok; */
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177 | /* } */
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178 | /* */
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179 | /* You can provide your own implementation of FT_EXPORT and */
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180 | /* FT_EXPORT_DEF here if you want. If you leave them undefined, they */
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181 | /* will be later automatically defined as `extern return_type' to */
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182 | /* allow normal compilation. */
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183 | /* */
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184 | /* Do not #undef these macros here since the build system might define */
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185 | /* them for certain configurations only. */
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186 | /* */
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187 | /*#define FT_EXPORT(x) __declspec( dllexport) x*/
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188 | /* #define FT_EXPORT_DEF(x) x */
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189 |
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190 |
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191 | /*************************************************************************/
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192 | /* */
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193 | /* Glyph Postscript Names handling */
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194 | /* */
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195 | /* By default, FreeType 2 is compiled with the `PSNames' module. This */
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196 | /* module is in charge of converting a glyph name string into a */
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197 | /* Unicode value, or return a Macintosh standard glyph name for the */
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198 | /* use with the TrueType `post' table. */
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199 | /* */
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200 | /* Undefine this macro if you do not want `PSNames' compiled in your */
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201 | /* build of FreeType. This has the following effects: */
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202 | /* */
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203 | /* - The TrueType driver will provide its own set of glyph names, */
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204 | /* if you build it to support postscript names in the TrueType */
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205 | /* `post' table. */
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206 | /* */
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207 | /* - The Type 1 driver will not be able to synthetize a Unicode */
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208 | /* charmap out of the glyphs found in the fonts. */
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209 | /* */
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210 | /* You would normally undefine this configuration macro when building */
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211 | /* a version of FreeType that doesn't contain a Type 1 or CFF driver. */
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212 | /* */
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213 | #define FT_CONFIG_OPTION_POSTSCRIPT_NAMES
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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 | /* Postscript Names to Unicode Values support */
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219 | /* */
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220 | /* By default, FreeType 2 is built with the `PSNames' module compiled */
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221 | /* in. Among other things, the module is used to convert a glyph name */
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222 | /* into a Unicode value. This is especially useful in order to */
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223 | /* synthetize on the fly a Unicode charmap from the CFF/Type 1 driver */
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224 | /* through a big table named the `Adobe Glyph List' (AGL). */
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225 | /* */
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226 | /* Undefine this macro if you do not want the Adobe Glyph List */
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227 | /* compiled in your `PSNames' module. The Type 1 driver will not be */
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228 | /* able to synthetize a Unicode charmap out of the glyphs found in the */
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229 | /* fonts. */
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230 | /* */
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231 | #define FT_CONFIG_OPTION_ADOBE_GLYPH_LIST
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232 |
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233 |
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234 | /*************************************************************************/
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235 | /* */
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236 | /* Support for Mac fonts */
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237 | /* */
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238 | /* Define this macro if you want support for outline fonts in Mac */
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239 | /* format (mac dfont, mac resource, macbinary containing a mac */
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240 | /* resource) on non-Mac platforms. */
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241 | /* */
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242 | /* Note that the `FOND' resource isn't checked. */
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243 | /* */
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244 | #define FT_CONFIG_OPTION_MAC_FONTS
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245 |
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246 |
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247 | /*************************************************************************/
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248 | /* */
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249 | /* Guessing methods to access embedded resource forks */
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250 | /* */
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251 | /* Enable extra Mac fonts support on non-Mac platforms (e.g. */
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252 | /* GNU/Linux). */
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253 | /* */
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254 | /* Resource forks which include fonts data are stored sometimes in */
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255 | /* locations which users or developers don't expected. In some cases, */
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256 | /* resource forks start with some offset from the head of a file. In */
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257 | /* other cases, the actual resource fork is stored in file different */
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258 | /* from what the user specifies. If this option is activated, */
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259 | /* FreeType tries to guess whether such offsets or different file */
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260 | /* names must be used. */
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261 | /* */
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262 | /* Note that normal, direct access of resource forks is controlled via */
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263 | /* the FT_CONFIG_OPTION_MAC_FONTS option. */
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264 | /* */
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265 | #ifdef FT_CONFIG_OPTION_MAC_FONTS
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266 | #define FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
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267 | #endif
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268 |
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269 |
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270 | /*************************************************************************/
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271 | /* */
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272 | /* Allow the use of FT_Incremental_Interface to load typefaces that */
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273 | /* contain no glyph data, but supply it via a callback function. */
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274 | /* This allows FreeType to be used with the PostScript language, using */
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275 | /* the GhostScript interpreter. */
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276 | /* */
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277 | /* #define FT_CONFIG_OPTION_INCREMENTAL */
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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 | /* The size in bytes of the render pool used by the scan-line converter */
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283 | /* to do all of its work. */
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284 | /* */
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285 | /* This must be greater than 4KByte. */
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286 | /* */
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287 | #define FT_RENDER_POOL_SIZE 16384L
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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 | /* FT_MAX_MODULES */
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293 | /* */
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294 | /* The maximum number of modules that can be registered in a single */
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295 | /* FreeType library object. 32 is the default. */
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296 | /* */
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297 | #define FT_MAX_MODULES 32
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298 |
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299 |
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300 | /*************************************************************************/
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301 | /* */
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302 | /* Debug level */
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303 | /* */
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304 | /* FreeType can be compiled in debug or trace mode. In debug mode, */
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305 | /* errors are reported through the `ftdebug' component. In trace */
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306 | /* mode, additional messages are sent to the standard output during */
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307 | /* execution. */
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308 | /* */
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309 | /* Define FT_DEBUG_LEVEL_ERROR to build the library in debug mode. */
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310 | /* Define FT_DEBUG_LEVEL_TRACE to build it in trace mode. */
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311 | /* */
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312 | /* Don't define any of these macros to compile in `release' mode! */
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313 | /* */
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314 | /* Do not #undef these macros here since the build system might define */
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315 | /* them for certain configurations only. */
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316 | /* */
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317 | /* #define FT_DEBUG_LEVEL_ERROR */
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318 | /* #define FT_DEBUG_LEVEL_TRACE */
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319 |
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320 |
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321 | /*************************************************************************/
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322 | /* */
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323 | /* Memory Debugging */
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324 | /* */
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325 | /* FreeType now comes with an integrated memory debugger that is */
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326 | /* capable of detecting simple errors like memory leaks or double */
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327 | /* deletes. To compile it within your build of the library, you */
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328 | /* should define FT_DEBUG_MEMORY here. */
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329 | /* */
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330 | /* Note that the memory debugger is only activated at runtime when */
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331 | /* when the _environment_ variable "FT2_DEBUG_MEMORY" is defined also! */
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332 | /* */
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333 | /* Do not #undef this macro here since the build system might define */
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334 | /* it for certain configurations only. */
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335 | /* */
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336 | /* #define FT_DEBUG_MEMORY */
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337 |
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338 |
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339 | /*************************************************************************/
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340 | /* */
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341 | /* Module errors */
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342 | /* */
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343 | /* If this macro is set (which is _not_ the default), the higher byte */
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344 | /* of an error code gives the module in which the error has occurred, */
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345 | /* while the lower byte is the real error code. */
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346 | /* */
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347 | /* Setting this macro makes sense for debugging purposes only, since */
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348 | /* it would break source compatibility of certain programs that use */
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349 | /* FreeType 2. */
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350 | /* */
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351 | /* More details can be found in the files ftmoderr.h and fterrors.h. */
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352 | /* */
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353 | #undef FT_CONFIG_OPTION_USE_MODULE_ERRORS
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354 |
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355 |
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356 |
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357 | /*************************************************************************/
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358 | /*************************************************************************/
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359 | /**** ****/
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360 | /**** S F N T D R I V E R C O N F I G U R A T I O N ****/
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361 | /**** ****/
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362 | /*************************************************************************/
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363 | /*************************************************************************/
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364 |
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365 |
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366 | /*************************************************************************/
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367 | /* */
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368 | /* Define TT_CONFIG_OPTION_EMBEDDED_BITMAPS if you want to support */
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369 | /* embedded bitmaps in all formats using the SFNT module (namely */
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370 | /* TrueType & OpenType). */
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371 | /* */
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372 | #define TT_CONFIG_OPTION_EMBEDDED_BITMAPS
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373 |
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374 |
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375 | /*************************************************************************/
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376 | /* */
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377 | /* Define TT_CONFIG_OPTION_POSTSCRIPT_NAMES if you want to be able to */
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378 | /* load and enumerate the glyph Postscript names in a TrueType or */
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379 | /* OpenType file. */
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380 | /* */
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381 | /* Note that when you do not compile the `PSNames' module by undefining */
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382 | /* the above FT_CONFIG_OPTION_POSTSCRIPT_NAMES, the `sfnt' module will */
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383 | /* contain additional code used to read the PS Names table from a font. */
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384 | /* */
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385 | /* (By default, the module uses `PSNames' to extract glyph names.) */
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386 | /* */
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387 | #define TT_CONFIG_OPTION_POSTSCRIPT_NAMES
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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 | /* Define TT_CONFIG_OPTION_SFNT_NAMES if your applications need to */
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393 | /* access the internal name table in a SFNT-based format like TrueType */
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394 | /* or OpenType. The name table contains various strings used to */
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395 | /* describe the font, like family name, copyright, version, etc. It */
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396 | /* does not contain any glyph name though. */
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397 | /* */
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398 | /* Accessing SFNT names is done through the functions declared in */
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399 | /* `freetype/ftnames.h'. */
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400 | /* */
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401 | #define TT_CONFIG_OPTION_SFNT_NAMES
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402 |
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403 |
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404 | /*************************************************************************/
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405 | /* */
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406 | /* TrueType CMap support */
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407 | /* */
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408 | /* Here you can fine-tune which TrueType CMap table format shall be */
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409 | /* supported. */
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410 | #define TT_CONFIG_CMAP_FORMAT_0
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411 | #define TT_CONFIG_CMAP_FORMAT_2
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412 | #define TT_CONFIG_CMAP_FORMAT_4
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413 | #define TT_CONFIG_CMAP_FORMAT_6
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414 | #define TT_CONFIG_CMAP_FORMAT_8
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415 | #define TT_CONFIG_CMAP_FORMAT_10
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416 | #define TT_CONFIG_CMAP_FORMAT_12
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417 |
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418 |
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419 | /*************************************************************************/
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420 | /*************************************************************************/
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421 | /**** ****/
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422 | /**** T R U E T Y P E D R I V E R C O N F I G U R A T I O N ****/
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423 | /**** ****/
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424 | /*************************************************************************/
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425 | /*************************************************************************/
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426 |
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427 | /*************************************************************************/
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428 | /* */
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429 | /* Define TT_CONFIG_OPTION_BYTECODE_INTERPRETER if you want to compile */
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430 | /* a bytecode interpreter in the TrueType driver. Note that there are */
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431 | /* important patent issues related to the use of the interpreter. */
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432 | /* */
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433 | /* By undefining this, you will only compile the code necessary to load */
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434 | /* TrueType glyphs without hinting. */
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435 | /* */
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436 | /* Do not #undef this macro here, since the build system might */
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437 | /* define it for certain configurations only. */
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438 | /* */
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439 | /* #define TT_CONFIG_OPTION_BYTECODE_INTERPRETER */
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440 |
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441 |
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442 | /*************************************************************************/
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443 | /* */
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444 | /* Define TT_CONFIG_OPTION_UNPATENTED_HINTING (in addition to */
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445 | /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER) to compile the unpatented */
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446 | /* work-around hinting system. Note that for the moment, the algorithm */
|
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447 | /* is only used when selected at runtime through the parameter tag */
|
---|
448 | /* FT_PARAM_TAG_UNPATENTED_HINTING; or when the debug hook */
|
---|
449 | /* FT_DEBUG_HOOK_UNPATENTED_HINTING is globally activated. */
|
---|
450 | /* */
|
---|
451 | #define TT_CONFIG_OPTION_UNPATENTED_HINTING
|
---|
452 |
|
---|
453 |
|
---|
454 | /*************************************************************************/
|
---|
455 | /* */
|
---|
456 | /* Define TT_CONFIG_OPTION_INTERPRETER_SWITCH to compile the TrueType */
|
---|
457 | /* bytecode interpreter with a huge switch statement, rather than a call */
|
---|
458 | /* table. This results in smaller and faster code for a number of */
|
---|
459 | /* architectures. */
|
---|
460 | /* */
|
---|
461 | /* Note however that on some compiler/processor combinations, undefining */
|
---|
462 | /* this macro will generate faster, though larger, code. */
|
---|
463 | /* */
|
---|
464 | #define TT_CONFIG_OPTION_INTERPRETER_SWITCH
|
---|
465 |
|
---|
466 |
|
---|
467 | /*************************************************************************/
|
---|
468 | /* */
|
---|
469 | /* Define TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED to compile the */
|
---|
470 | /* TrueType glyph loader to use Apple's definition of how to handle */
|
---|
471 | /* component offsets in composite glyphs. */
|
---|
472 | /* */
|
---|
473 | /* Apple and MS disagree on the default behavior of component offsets */
|
---|
474 | /* in composites. Apple says that they should be scaled by the scale */
|
---|
475 | /* factors in the transformation matrix (roughly, it's more complex) */
|
---|
476 | /* while MS says they should not. OpenType defines two bits in the */
|
---|
477 | /* composite flags array which can be used to disambiguate, but old */
|
---|
478 | /* fonts will not have them. */
|
---|
479 | /* */
|
---|
480 | /* http://partners.adobe.com/asn/developer/opentype/glyf.html */
|
---|
481 | /* http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html */
|
---|
482 | /* */
|
---|
483 | #undef TT_CONFIG_OPTION_COMPONENT_OFFSET_SCALED
|
---|
484 |
|
---|
485 |
|
---|
486 | /*************************************************************************/
|
---|
487 | /* */
|
---|
488 | /* Define TT_CONFIG_OPTION_GX_VAR_SUPPORT if you want to include */
|
---|
489 | /* support for Apple's distortable font technology (fvar, gvar, cvar, */
|
---|
490 | /* and avar tables). This has many similarities to Type 1 Multiple */
|
---|
491 | /* Masters support. */
|
---|
492 | /* */
|
---|
493 | #define TT_CONFIG_OPTION_GX_VAR_SUPPORT
|
---|
494 |
|
---|
495 |
|
---|
496 | /*************************************************************************/
|
---|
497 | /*************************************************************************/
|
---|
498 | /**** ****/
|
---|
499 | /**** T Y P E 1 D R I V E R C O N F I G U R A T I O N ****/
|
---|
500 | /**** ****/
|
---|
501 | /*************************************************************************/
|
---|
502 | /*************************************************************************/
|
---|
503 |
|
---|
504 |
|
---|
505 | /*************************************************************************/
|
---|
506 | /* */
|
---|
507 | /* T1_MAX_DICT_DEPTH is the maximal depth of nest dictionaries and */
|
---|
508 | /* arrays in the Type 1 stream (see t1load.c). A minimum of 4 is */
|
---|
509 | /* required. */
|
---|
510 | /* */
|
---|
511 | #define T1_MAX_DICT_DEPTH 5
|
---|
512 |
|
---|
513 |
|
---|
514 | /*************************************************************************/
|
---|
515 | /* */
|
---|
516 | /* T1_MAX_SUBRS_CALLS details the maximum number of nested sub-routine */
|
---|
517 | /* calls during glyph loading. */
|
---|
518 | /* */
|
---|
519 | #define T1_MAX_SUBRS_CALLS 16
|
---|
520 |
|
---|
521 |
|
---|
522 | /*************************************************************************/
|
---|
523 | /* */
|
---|
524 | /* T1_MAX_CHARSTRING_OPERANDS is the charstring stack's capacity. A */
|
---|
525 | /* minimum of 16 is required. */
|
---|
526 | /* */
|
---|
527 | /* The Chinese font MingTiEG-Medium (CNS 11643 character set) needs 256. */
|
---|
528 | /* */
|
---|
529 | #define T1_MAX_CHARSTRINGS_OPERANDS 256
|
---|
530 |
|
---|
531 |
|
---|
532 | /*************************************************************************/
|
---|
533 | /* */
|
---|
534 | /* Define this configuration macro if you want to prevent the */
|
---|
535 | /* compilation of `t1afm', which is in charge of reading Type 1 AFM */
|
---|
536 | /* files into an existing face. Note that if set, the T1 driver will be */
|
---|
537 | /* unable to produce kerning distances. */
|
---|
538 | /* */
|
---|
539 | #undef T1_CONFIG_OPTION_NO_AFM
|
---|
540 |
|
---|
541 |
|
---|
542 | /*************************************************************************/
|
---|
543 | /* */
|
---|
544 | /* Define this configuration macro if you want to prevent the */
|
---|
545 | /* compilation of the Multiple Masters font support in the Type 1 */
|
---|
546 | /* driver. */
|
---|
547 | /* */
|
---|
548 | #undef T1_CONFIG_OPTION_NO_MM_SUPPORT
|
---|
549 |
|
---|
550 | /* */
|
---|
551 |
|
---|
552 | /*
|
---|
553 | * This temporary macro is used to control various optimizations for
|
---|
554 | * reducing the heap footprint of memory-mapped TrueType files.
|
---|
555 | *
|
---|
556 | */
|
---|
557 | /* #define FT_OPTIMIZE_MEMORY */
|
---|
558 |
|
---|
559 | FT_END_HEADER
|
---|
560 |
|
---|
561 |
|
---|
562 | #endif /* __FTOPTION_H__ */
|
---|
563 |
|
---|
564 |
|
---|
565 | /* END */
|
---|