1 /***************************************************************************/ |
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2 /* */ |
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3 /* ftmac.c */ |
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4 /* */ |
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5 /* Mac FOND support. Written by just@letterror.com. */ |
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6 /* Heavily modified by mpsuzuki, George Williams, and Sean McBride. */ |
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7 /* */ |
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8 /* This file is for Mac OS X only; see builds/mac/ftoldmac.c for */ |
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9 /* classic platforms built by MPW. */ |
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10 /* */ |
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11 /* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, */ |
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12 /* 2009 by */ |
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13 /* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. */ |
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14 /* */ |
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15 /* This file is part of the FreeType project, and may only be used, */ |
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16 /* modified, and distributed under the terms of the FreeType project */ |
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17 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
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18 /* this file you indicate that you have read the license and */ |
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19 /* understand and accept it fully. */ |
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20 /* */ |
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21 /***************************************************************************/ |
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22 |
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23 |
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24 /* |
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25 Notes |
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26 |
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27 Mac suitcase files can (and often do!) contain multiple fonts. To |
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28 support this I use the face_index argument of FT_(Open|New)_Face() |
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29 functions, and pretend the suitcase file is a collection. |
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30 |
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31 Warning: fbit and NFNT bitmap resources are not supported yet. In old |
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32 sfnt fonts, bitmap glyph data for each size is stored in each `NFNT' |
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33 resources instead of the `bdat' table in the sfnt resource. Therefore, |
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34 face->num_fixed_sizes is set to 0, because bitmap data in `NFNT' |
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35 resource is unavailable at present. |
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36 |
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37 The Mac FOND support works roughly like this: |
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38 |
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39 - Check whether the offered stream points to a Mac suitcase file. This |
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40 is done by checking the file type: it has to be 'FFIL' or 'tfil'. The |
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41 stream that gets passed to our init_face() routine is a stdio stream, |
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42 which isn't usable for us, since the FOND resources live in the |
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43 resource fork. So we just grab the stream->pathname field. |
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44 |
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45 - Read the FOND resource into memory, then check whether there is a |
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46 TrueType font and/or(!) a Type 1 font available. |
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47 |
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48 - If there is a Type 1 font available (as a separate `LWFN' file), read |
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49 its data into memory, massage it slightly so it becomes PFB data, wrap |
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50 it into a memory stream, load the Type 1 driver and delegate the rest |
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51 of the work to it by calling FT_Open_Face(). (XXX TODO: after this |
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52 has been done, the kerning data from the FOND resource should be |
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53 appended to the face: On the Mac there are usually no AFM files |
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54 available. However, this is tricky since we need to map Mac char |
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55 codes to ps glyph names to glyph ID's...) |
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56 |
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57 - If there is a TrueType font (an `sfnt' resource), read it into memory, |
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58 wrap it into a memory stream, load the TrueType driver and delegate |
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59 the rest of the work to it, by calling FT_Open_Face(). |
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60 |
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61 - Some suitcase fonts (notably Onyx) might point the `LWFN' file to |
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62 itself, even though it doesn't contains `POST' resources. To handle |
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63 this special case without opening the file an extra time, we just |
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64 ignore errors from the `LWFN' and fallback to the `sfnt' if both are |
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65 available. |
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66 */ |
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67 |
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68 |
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69 #include <ft2build.h> |
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70 #include FT_FREETYPE_H |
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71 #include FT_TRUETYPE_TAGS_H |
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72 #include FT_INTERNAL_STREAM_H |
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73 #include "ftbase.h" |
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74 |
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75 /* This is for Mac OS X. Without redefinition, OS_INLINE */ |
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76 /* expands to `static inline' which doesn't survive the */ |
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77 /* -ansi compilation flag of GCC. */ |
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78 #if !HAVE_ANSI_OS_INLINE |
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79 #undef OS_INLINE |
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80 #define OS_INLINE static __inline__ |
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81 #endif |
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82 |
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83 /* `configure' checks the availability of `ResourceIndex' strictly */ |
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84 /* and sets HAVE_TYPE_RESOURCE_INDEX 1 or 0 always. If it is */ |
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85 /* not set (e.g., a build without `configure'), the availability */ |
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86 /* is guessed from the SDK version. */ |
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87 #ifndef HAVE_TYPE_RESOURCE_INDEX |
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88 #if !defined( MAC_OS_X_VERSION_10_5 ) || \ |
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89 ( MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5 ) |
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90 #define HAVE_TYPE_RESOURCE_INDEX 0 |
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91 #else |
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92 #define HAVE_TYPE_RESOURCE_INDEX 1 |
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93 #endif |
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94 #endif /* !HAVE_TYPE_RESOURCE_INDEX */ |
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95 |
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96 #if ( HAVE_TYPE_RESOURCE_INDEX == 0 ) |
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97 typedef short ResourceIndex; |
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98 #endif |
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99 |
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100 #include <CoreServices/CoreServices.h> |
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101 #include <ApplicationServices/ApplicationServices.h> |
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102 #include <sys/syslimits.h> /* PATH_MAX */ |
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103 |
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104 /* Don't want warnings about our own use of deprecated functions. */ |
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105 #define FT_DEPRECATED_ATTRIBUTE |
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106 |
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107 #include FT_MAC_H |
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108 |
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109 #ifndef kATSOptionFlagsUnRestrictedScope /* since Mac OS X 10.1 */ |
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110 #define kATSOptionFlagsUnRestrictedScope kATSOptionFlagsDefault |
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111 #endif |
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112 |
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113 |
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114 /* Set PREFER_LWFN to 1 if LWFN (Type 1) is preferred over |
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115 TrueType in case *both* are available (this is not common, |
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116 but it *is* possible). */ |
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117 #ifndef PREFER_LWFN |
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118 #define PREFER_LWFN 1 |
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119 #endif |
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120 |
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121 |
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122 /* This function is deprecated because FSSpec is deprecated in Mac OS X */ |
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123 FT_EXPORT_DEF( FT_Error ) |
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124 FT_GetFile_From_Mac_Name( const char* fontName, |
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125 FSSpec* pathSpec, |
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126 FT_Long* face_index ) |
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127 { |
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128 FT_UNUSED( fontName ); |
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129 FT_UNUSED( pathSpec ); |
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130 FT_UNUSED( face_index ); |
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131 |
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132 return FT_Err_Unimplemented_Feature; |
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133 } |
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134 |
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135 |
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136 /* Private function. */ |
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137 /* The FSSpec type has been discouraged for a long time, */ |
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138 /* unfortunately an FSRef replacement API for */ |
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139 /* ATSFontGetFileSpecification() is only available in */ |
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140 /* Mac OS X 10.5 and later. */ |
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141 static OSStatus |
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142 FT_ATSFontGetFileReference( ATSFontRef ats_font_id, |
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143 FSRef* ats_font_ref ) |
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144 { |
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145 #if defined( MAC_OS_X_VERSION_10_5 ) && \ |
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146 ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) |
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147 |
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148 OSStatus err; |
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149 |
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150 err = ATSFontGetFileReference( ats_font_id, ats_font_ref ); |
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151 |
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152 return err; |
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153 #elif __LP64__ /* No 64bit Carbon API on legacy platforms */ |
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154 FT_UNUSED( ats_font_id ); |
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155 FT_UNUSED( ats_font_ref ); |
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156 |
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157 |
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158 return fnfErr; |
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159 #else /* 32bit Carbon API on legacy platforms */ |
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160 OSStatus err; |
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161 FSSpec spec; |
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162 |
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163 |
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164 err = ATSFontGetFileSpecification( ats_font_id, &spec ); |
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165 if ( noErr == err ) |
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166 err = FSpMakeFSRef( &spec, ats_font_ref ); |
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167 |
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168 return err; |
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169 #endif |
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170 } |
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171 |
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172 |
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173 static FT_Error |
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174 FT_GetFileRef_From_Mac_ATS_Name( const char* fontName, |
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175 FSRef* ats_font_ref, |
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176 FT_Long* face_index ) |
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177 { |
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178 CFStringRef cf_fontName; |
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179 ATSFontRef ats_font_id; |
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180 |
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181 |
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182 *face_index = 0; |
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183 |
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184 cf_fontName = CFStringCreateWithCString( NULL, fontName, |
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185 kCFStringEncodingMacRoman ); |
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186 ats_font_id = ATSFontFindFromName( cf_fontName, |
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187 kATSOptionFlagsUnRestrictedScope ); |
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188 CFRelease( cf_fontName ); |
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189 |
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190 if ( ats_font_id == 0 || ats_font_id == 0xFFFFFFFFUL ) |
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191 return FT_Err_Unknown_File_Format; |
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192 |
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193 if ( noErr != FT_ATSFontGetFileReference( ats_font_id, ats_font_ref ) ) |
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194 return FT_Err_Unknown_File_Format; |
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195 |
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196 /* face_index calculation by searching preceding fontIDs */ |
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197 /* with same FSRef */ |
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198 { |
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199 ATSFontRef id2 = ats_font_id - 1; |
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200 FSRef ref2; |
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201 |
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202 |
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203 while ( id2 > 0 ) |
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204 { |
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205 if ( noErr != FT_ATSFontGetFileReference( id2, &ref2 ) ) |
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206 break; |
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207 if ( noErr != FSCompareFSRefs( ats_font_ref, &ref2 ) ) |
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208 break; |
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209 |
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210 id2 --; |
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211 } |
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212 *face_index = ats_font_id - ( id2 + 1 ); |
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213 } |
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214 |
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215 return FT_Err_Ok; |
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216 } |
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217 |
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218 |
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219 FT_EXPORT_DEF( FT_Error ) |
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220 FT_GetFilePath_From_Mac_ATS_Name( const char* fontName, |
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221 UInt8* path, |
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222 UInt32 maxPathSize, |
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223 FT_Long* face_index ) |
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224 { |
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225 FSRef ref; |
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226 FT_Error err; |
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227 |
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228 |
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229 err = FT_GetFileRef_From_Mac_ATS_Name( fontName, &ref, face_index ); |
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230 if ( FT_Err_Ok != err ) |
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231 return err; |
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232 |
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233 if ( noErr != FSRefMakePath( &ref, path, maxPathSize ) ) |
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234 return FT_Err_Unknown_File_Format; |
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235 |
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236 return FT_Err_Ok; |
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237 } |
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238 |
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239 |
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240 /* This function is deprecated because FSSpec is deprecated in Mac OS X */ |
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241 FT_EXPORT_DEF( FT_Error ) |
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242 FT_GetFile_From_Mac_ATS_Name( const char* fontName, |
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243 FSSpec* pathSpec, |
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244 FT_Long* face_index ) |
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245 { |
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246 #if ( __LP64__ ) || ( defined( MAC_OS_X_VERSION_10_5 ) && \ |
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247 ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) ) |
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248 FT_UNUSED( fontName ); |
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249 FT_UNUSED( pathSpec ); |
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250 FT_UNUSED( face_index ); |
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251 |
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252 return FT_Err_Unimplemented_Feature; |
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253 #else |
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254 FSRef ref; |
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255 FT_Error err; |
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256 |
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257 |
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258 err = FT_GetFileRef_From_Mac_ATS_Name( fontName, &ref, face_index ); |
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259 if ( FT_Err_Ok != err ) |
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260 return err; |
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261 |
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262 if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, NULL, NULL, |
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263 pathSpec, NULL ) ) |
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264 return FT_Err_Unknown_File_Format; |
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265 |
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266 return FT_Err_Ok; |
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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 static OSErr |
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272 FT_FSPathMakeRes( const UInt8* pathname, |
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273 ResFileRefNum* res ) |
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274 { |
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275 OSErr err; |
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276 FSRef ref; |
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277 |
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278 |
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279 if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) ) |
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280 return FT_Err_Cannot_Open_Resource; |
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281 |
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282 /* at present, no support for dfont format */ |
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283 err = FSOpenResourceFile( &ref, 0, NULL, fsRdPerm, res ); |
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284 if ( noErr == err ) |
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285 return err; |
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286 |
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287 /* fallback to original resource-fork font */ |
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288 *res = FSOpenResFile( &ref, fsRdPerm ); |
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289 err = ResError(); |
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290 |
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291 return err; |
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292 } |
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293 |
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294 |
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295 /* Return the file type for given pathname */ |
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296 static OSType |
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297 get_file_type_from_path( const UInt8* pathname ) |
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298 { |
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299 FSRef ref; |
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300 FSCatalogInfo info; |
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301 |
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302 |
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303 if ( noErr != FSPathMakeRef( pathname, &ref, FALSE ) ) |
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304 return ( OSType ) 0; |
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305 |
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306 if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoFinderInfo, &info, |
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307 NULL, NULL, NULL ) ) |
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308 return ( OSType ) 0; |
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309 |
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310 return ((FInfo *)(info.finderInfo))->fdType; |
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311 } |
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312 |
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313 |
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314 /* Given a PostScript font name, create the Macintosh LWFN file name. */ |
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315 static void |
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316 create_lwfn_name( char* ps_name, |
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317 Str255 lwfn_file_name ) |
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318 { |
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319 int max = 5, count = 0; |
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320 FT_Byte* p = lwfn_file_name; |
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321 FT_Byte* q = (FT_Byte*)ps_name; |
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322 |
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323 |
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324 lwfn_file_name[0] = 0; |
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325 |
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326 while ( *q ) |
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327 { |
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328 if ( ft_isupper( *q ) ) |
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329 { |
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330 if ( count ) |
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331 max = 3; |
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332 count = 0; |
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333 } |
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334 if ( count < max && ( ft_isalnum( *q ) || *q == '_' ) ) |
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335 { |
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336 *++p = *q; |
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337 lwfn_file_name[0]++; |
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338 count++; |
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339 } |
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340 q++; |
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341 } |
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342 } |
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343 |
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344 |
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345 static short |
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346 count_faces_sfnt( char* fond_data ) |
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347 { |
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348 /* The count is 1 greater than the value in the FOND. */ |
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349 /* Isn't that cute? :-) */ |
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350 |
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351 return EndianS16_BtoN( *( (short*)( fond_data + |
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352 sizeof ( FamRec ) ) ) ) + 1; |
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353 } |
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354 |
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355 |
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356 static short |
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357 count_faces_scalable( char* fond_data ) |
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358 { |
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359 AsscEntry* assoc; |
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360 FamRec* fond; |
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361 short i, face, face_all; |
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362 |
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363 |
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364 fond = (FamRec*)fond_data; |
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365 face_all = EndianS16_BtoN( *( (short *)( fond_data + |
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366 sizeof ( FamRec ) ) ) ) + 1; |
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367 assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 ); |
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368 face = 0; |
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369 |
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370 for ( i = 0; i < face_all; i++ ) |
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371 { |
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372 if ( 0 == EndianS16_BtoN( assoc[i].fontSize ) ) |
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373 face++; |
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374 } |
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375 return face; |
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376 } |
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377 |
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378 |
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379 /* Look inside the FOND data, answer whether there should be an SFNT |
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380 resource, and answer the name of a possible LWFN Type 1 file. |
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381 |
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382 Thanks to Paul Miller (paulm@profoundeffects.com) for the fix |
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383 to load a face OTHER than the first one in the FOND! |
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384 */ |
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385 |
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386 |
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387 static void |
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388 parse_fond( char* fond_data, |
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389 short* have_sfnt, |
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390 ResID* sfnt_id, |
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391 Str255 lwfn_file_name, |
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392 short face_index ) |
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393 { |
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394 AsscEntry* assoc; |
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395 AsscEntry* base_assoc; |
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396 FamRec* fond; |
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397 |
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398 |
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399 *sfnt_id = 0; |
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400 *have_sfnt = 0; |
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401 lwfn_file_name[0] = 0; |
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402 |
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403 fond = (FamRec*)fond_data; |
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404 assoc = (AsscEntry*)( fond_data + sizeof ( FamRec ) + 2 ); |
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405 base_assoc = assoc; |
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406 |
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407 /* the maximum faces in a FOND is 48, size of StyleTable.indexes[] */ |
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408 if ( 47 < face_index ) |
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409 return; |
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410 |
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411 /* Let's do a little range checking before we get too excited here */ |
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412 if ( face_index < count_faces_sfnt( fond_data ) ) |
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413 { |
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414 assoc += face_index; /* add on the face_index! */ |
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415 |
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416 /* if the face at this index is not scalable, |
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417 fall back to the first one (old behavior) */ |
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418 if ( EndianS16_BtoN( assoc->fontSize ) == 0 ) |
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419 { |
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420 *have_sfnt = 1; |
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421 *sfnt_id = EndianS16_BtoN( assoc->fontID ); |
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422 } |
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423 else if ( base_assoc->fontSize == 0 ) |
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424 { |
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425 *have_sfnt = 1; |
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426 *sfnt_id = EndianS16_BtoN( base_assoc->fontID ); |
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427 } |
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428 } |
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429 |
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430 if ( EndianS32_BtoN( fond->ffStylOff ) ) |
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431 { |
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432 unsigned char* p = (unsigned char*)fond_data; |
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433 StyleTable* style; |
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434 unsigned short string_count; |
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435 char ps_name[256]; |
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436 unsigned char* names[64]; |
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437 int i; |
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438 |
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439 |
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440 p += EndianS32_BtoN( fond->ffStylOff ); |
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441 style = (StyleTable*)p; |
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442 p += sizeof ( StyleTable ); |
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443 string_count = EndianS16_BtoN( *(short*)(p) ); |
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444 p += sizeof ( short ); |
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445 |
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446 for ( i = 0; i < string_count && i < 64; i++ ) |
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447 { |
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448 names[i] = p; |
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449 p += names[i][0]; |
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450 p++; |
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451 } |
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452 |
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453 { |
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454 size_t ps_name_len = (size_t)names[0][0]; |
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455 |
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456 |
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457 if ( ps_name_len != 0 ) |
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458 { |
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459 ft_memcpy(ps_name, names[0] + 1, ps_name_len); |
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460 ps_name[ps_name_len] = 0; |
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461 } |
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462 if ( style->indexes[face_index] > 1 && |
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463 style->indexes[face_index] <= FT_MIN( string_count, 64 ) ) |
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464 { |
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465 unsigned char* suffixes = names[style->indexes[face_index] - 1]; |
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466 |
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467 |
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468 for ( i = 1; i <= suffixes[0]; i++ ) |
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469 { |
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470 unsigned char* s; |
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471 size_t j = suffixes[i] - 1; |
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472 |
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473 |
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474 if ( j < string_count && ( s = names[j] ) != NULL ) |
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475 { |
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476 size_t s_len = (size_t)s[0]; |
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477 |
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478 |
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479 if ( s_len != 0 && ps_name_len + s_len < sizeof ( ps_name ) ) |
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480 { |
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481 ft_memcpy( ps_name + ps_name_len, s + 1, s_len ); |
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482 ps_name_len += s_len; |
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483 ps_name[ps_name_len] = 0; |
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484 } |
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485 } |
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486 } |
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487 } |
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488 } |
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489 |
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490 create_lwfn_name( ps_name, lwfn_file_name ); |
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491 } |
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492 } |
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493 |
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494 |
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495 static FT_Error |
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496 lookup_lwfn_by_fond( const UInt8* path_fond, |
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497 ConstStr255Param base_lwfn, |
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498 UInt8* path_lwfn, |
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499 size_t path_size ) |
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500 { |
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501 FSRef ref, par_ref; |
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502 size_t dirname_len; |
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503 |
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504 |
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505 /* Pathname for FSRef can be in various formats: HFS, HFS+, and POSIX. */ |
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506 /* We should not extract parent directory by string manipulation. */ |
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507 |
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508 if ( noErr != FSPathMakeRef( path_fond, &ref, FALSE ) ) |
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509 return FT_Err_Invalid_Argument; |
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510 |
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511 if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, |
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512 NULL, NULL, NULL, &par_ref ) ) |
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513 return FT_Err_Invalid_Argument; |
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514 |
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515 if ( noErr != FSRefMakePath( &par_ref, path_lwfn, path_size ) ) |
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516 return FT_Err_Invalid_Argument; |
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517 |
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518 if ( ft_strlen( (char *)path_lwfn ) + 1 + base_lwfn[0] > path_size ) |
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519 return FT_Err_Invalid_Argument; |
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520 |
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521 /* now we have absolute dirname in path_lwfn */ |
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522 ft_strcat( (char *)path_lwfn, "/" ); |
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523 dirname_len = ft_strlen( (char *)path_lwfn ); |
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524 ft_strcat( (char *)path_lwfn, (char *)base_lwfn + 1 ); |
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525 path_lwfn[dirname_len + base_lwfn[0]] = '\0'; |
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526 |
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527 if ( noErr != FSPathMakeRef( path_lwfn, &ref, FALSE ) ) |
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528 return FT_Err_Cannot_Open_Resource; |
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529 |
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530 if ( noErr != FSGetCatalogInfo( &ref, kFSCatInfoNone, |
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531 NULL, NULL, NULL, NULL ) ) |
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532 return FT_Err_Cannot_Open_Resource; |
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533 |
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534 return FT_Err_Ok; |
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535 } |
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536 |
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537 |
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538 static short |
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539 count_faces( Handle fond, |
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540 const UInt8* pathname ) |
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541 { |
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542 ResID sfnt_id; |
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543 short have_sfnt, have_lwfn; |
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544 Str255 lwfn_file_name; |
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545 UInt8 buff[PATH_MAX]; |
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546 FT_Error err; |
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547 short num_faces; |
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548 |
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549 |
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550 have_sfnt = have_lwfn = 0; |
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551 |
|
552 parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, 0 ); |
|
553 |
|
554 if ( lwfn_file_name[0] ) |
|
555 { |
|
556 err = lookup_lwfn_by_fond( pathname, lwfn_file_name, |
|
557 buff, sizeof ( buff ) ); |
|
558 if ( FT_Err_Ok == err ) |
|
559 have_lwfn = 1; |
|
560 } |
|
561 |
|
562 if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) ) |
|
563 num_faces = 1; |
|
564 else |
|
565 num_faces = count_faces_scalable( *fond ); |
|
566 |
|
567 return num_faces; |
|
568 } |
|
569 |
|
570 |
|
571 /* Read Type 1 data from the POST resources inside the LWFN file, |
|
572 return a PFB buffer. This is somewhat convoluted because the FT2 |
|
573 PFB parser wants the ASCII header as one chunk, and the LWFN |
|
574 chunks are often not organized that way, so we glue chunks |
|
575 of the same type together. */ |
|
576 static FT_Error |
|
577 read_lwfn( FT_Memory memory, |
|
578 ResFileRefNum res, |
|
579 FT_Byte** pfb_data, |
|
580 FT_ULong* size ) |
|
581 { |
|
582 FT_Error error = FT_Err_Ok; |
|
583 ResID res_id; |
|
584 unsigned char *buffer, *p, *size_p = NULL; |
|
585 FT_ULong total_size = 0; |
|
586 FT_ULong old_total_size = 0; |
|
587 FT_ULong post_size, pfb_chunk_size; |
|
588 Handle post_data; |
|
589 char code, last_code; |
|
590 |
|
591 |
|
592 UseResFile( res ); |
|
593 |
|
594 /* First pass: load all POST resources, and determine the size of */ |
|
595 /* the output buffer. */ |
|
596 res_id = 501; |
|
597 last_code = -1; |
|
598 |
|
599 for (;;) |
|
600 { |
|
601 post_data = Get1Resource( TTAG_POST, res_id++ ); |
|
602 if ( post_data == NULL ) |
|
603 break; /* we are done */ |
|
604 |
|
605 code = (*post_data)[0]; |
|
606 |
|
607 if ( code != last_code ) |
|
608 { |
|
609 if ( code == 5 ) |
|
610 total_size += 2; /* just the end code */ |
|
611 else |
|
612 total_size += 6; /* code + 4 bytes chunk length */ |
|
613 } |
|
614 |
|
615 total_size += GetHandleSize( post_data ) - 2; |
|
616 last_code = code; |
|
617 |
|
618 /* detect integer overflows */ |
|
619 if ( total_size < old_total_size ) |
|
620 { |
|
621 error = FT_Err_Array_Too_Large; |
|
622 goto Error; |
|
623 } |
|
624 |
|
625 old_total_size = total_size; |
|
626 } |
|
627 |
|
628 if ( FT_ALLOC( buffer, (FT_Long)total_size ) ) |
|
629 goto Error; |
|
630 |
|
631 /* Second pass: append all POST data to the buffer, add PFB fields. */ |
|
632 /* Glue all consecutive chunks of the same type together. */ |
|
633 p = buffer; |
|
634 res_id = 501; |
|
635 last_code = -1; |
|
636 pfb_chunk_size = 0; |
|
637 |
|
638 for (;;) |
|
639 { |
|
640 post_data = Get1Resource( TTAG_POST, res_id++ ); |
|
641 if ( post_data == NULL ) |
|
642 break; /* we are done */ |
|
643 |
|
644 post_size = (FT_ULong)GetHandleSize( post_data ) - 2; |
|
645 code = (*post_data)[0]; |
|
646 |
|
647 if ( code != last_code ) |
|
648 { |
|
649 if ( last_code != -1 ) |
|
650 { |
|
651 /* we are done adding a chunk, fill in the size field */ |
|
652 if ( size_p != NULL ) |
|
653 { |
|
654 *size_p++ = (FT_Byte)( pfb_chunk_size & 0xFF ); |
|
655 *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 8 ) & 0xFF ); |
|
656 *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 16 ) & 0xFF ); |
|
657 *size_p++ = (FT_Byte)( ( pfb_chunk_size >> 24 ) & 0xFF ); |
|
658 } |
|
659 pfb_chunk_size = 0; |
|
660 } |
|
661 |
|
662 *p++ = 0x80; |
|
663 if ( code == 5 ) |
|
664 *p++ = 0x03; /* the end */ |
|
665 else if ( code == 2 ) |
|
666 *p++ = 0x02; /* binary segment */ |
|
667 else |
|
668 *p++ = 0x01; /* ASCII segment */ |
|
669 |
|
670 if ( code != 5 ) |
|
671 { |
|
672 size_p = p; /* save for later */ |
|
673 p += 4; /* make space for size field */ |
|
674 } |
|
675 } |
|
676 |
|
677 ft_memcpy( p, *post_data + 2, post_size ); |
|
678 pfb_chunk_size += post_size; |
|
679 p += post_size; |
|
680 last_code = code; |
|
681 } |
|
682 |
|
683 *pfb_data = buffer; |
|
684 *size = total_size; |
|
685 |
|
686 Error: |
|
687 CloseResFile( res ); |
|
688 return error; |
|
689 } |
|
690 |
|
691 |
|
692 /* Create a new FT_Face from a file path to an LWFN file. */ |
|
693 static FT_Error |
|
694 FT_New_Face_From_LWFN( FT_Library library, |
|
695 const UInt8* pathname, |
|
696 FT_Long face_index, |
|
697 FT_Face* aface ) |
|
698 { |
|
699 FT_Byte* pfb_data; |
|
700 FT_ULong pfb_size; |
|
701 FT_Error error; |
|
702 ResFileRefNum res; |
|
703 |
|
704 |
|
705 if ( noErr != FT_FSPathMakeRes( pathname, &res ) ) |
|
706 return FT_Err_Cannot_Open_Resource; |
|
707 |
|
708 pfb_data = NULL; |
|
709 pfb_size = 0; |
|
710 error = read_lwfn( library->memory, res, &pfb_data, &pfb_size ); |
|
711 CloseResFile( res ); /* PFB is already loaded, useless anymore */ |
|
712 if ( error ) |
|
713 return error; |
|
714 |
|
715 return open_face_from_buffer( library, |
|
716 pfb_data, |
|
717 pfb_size, |
|
718 face_index, |
|
719 "type1", |
|
720 aface ); |
|
721 } |
|
722 |
|
723 |
|
724 /* Create a new FT_Face from an SFNT resource, specified by res ID. */ |
|
725 static FT_Error |
|
726 FT_New_Face_From_SFNT( FT_Library library, |
|
727 ResID sfnt_id, |
|
728 FT_Long face_index, |
|
729 FT_Face* aface ) |
|
730 { |
|
731 Handle sfnt = NULL; |
|
732 FT_Byte* sfnt_data; |
|
733 size_t sfnt_size; |
|
734 FT_Error error = FT_Err_Ok; |
|
735 FT_Memory memory = library->memory; |
|
736 int is_cff, is_sfnt_ps; |
|
737 |
|
738 |
|
739 sfnt = GetResource( TTAG_sfnt, sfnt_id ); |
|
740 if ( sfnt == NULL ) |
|
741 return FT_Err_Invalid_Handle; |
|
742 |
|
743 sfnt_size = (FT_ULong)GetHandleSize( sfnt ); |
|
744 if ( FT_ALLOC( sfnt_data, (FT_Long)sfnt_size ) ) |
|
745 { |
|
746 ReleaseResource( sfnt ); |
|
747 return error; |
|
748 } |
|
749 |
|
750 ft_memcpy( sfnt_data, *sfnt, sfnt_size ); |
|
751 ReleaseResource( sfnt ); |
|
752 |
|
753 is_cff = sfnt_size > 4 && !ft_memcmp( sfnt_data, "OTTO", 4 ); |
|
754 is_sfnt_ps = sfnt_size > 4 && !ft_memcmp( sfnt_data, "typ1", 4 ); |
|
755 |
|
756 if ( is_sfnt_ps ) |
|
757 { |
|
758 FT_Stream stream; |
|
759 |
|
760 |
|
761 if ( FT_NEW( stream ) ) |
|
762 goto Try_OpenType; |
|
763 |
|
764 FT_Stream_OpenMemory( stream, sfnt_data, sfnt_size ); |
|
765 if ( !open_face_PS_from_sfnt_stream( library, |
|
766 stream, |
|
767 face_index, |
|
768 0, NULL, |
|
769 aface ) ) |
|
770 { |
|
771 FT_Stream_Close( stream ); |
|
772 FT_FREE( stream ); |
|
773 FT_FREE( sfnt_data ); |
|
774 goto Exit; |
|
775 } |
|
776 |
|
777 FT_FREE( stream ); |
|
778 } |
|
779 Try_OpenType: |
|
780 error = open_face_from_buffer( library, |
|
781 sfnt_data, |
|
782 sfnt_size, |
|
783 face_index, |
|
784 is_cff ? "cff" : "truetype", |
|
785 aface ); |
|
786 Exit: |
|
787 return error; |
|
788 } |
|
789 |
|
790 |
|
791 /* Create a new FT_Face from a file path to a suitcase file. */ |
|
792 static FT_Error |
|
793 FT_New_Face_From_Suitcase( FT_Library library, |
|
794 const UInt8* pathname, |
|
795 FT_Long face_index, |
|
796 FT_Face* aface ) |
|
797 { |
|
798 FT_Error error = FT_Err_Cannot_Open_Resource; |
|
799 ResFileRefNum res_ref; |
|
800 ResourceIndex res_index; |
|
801 Handle fond; |
|
802 short num_faces_in_res, num_faces_in_fond; |
|
803 |
|
804 |
|
805 if ( noErr != FT_FSPathMakeRes( pathname, &res_ref ) ) |
|
806 return FT_Err_Cannot_Open_Resource; |
|
807 |
|
808 UseResFile( res_ref ); |
|
809 if ( ResError() ) |
|
810 return FT_Err_Cannot_Open_Resource; |
|
811 |
|
812 num_faces_in_res = 0; |
|
813 for ( res_index = 1; ; ++res_index ) |
|
814 { |
|
815 fond = Get1IndResource( TTAG_FOND, res_index ); |
|
816 if ( ResError() ) |
|
817 break; |
|
818 |
|
819 num_faces_in_fond = count_faces( fond, pathname ); |
|
820 num_faces_in_res += num_faces_in_fond; |
|
821 |
|
822 if ( 0 <= face_index && face_index < num_faces_in_fond && error ) |
|
823 error = FT_New_Face_From_FOND( library, fond, face_index, aface ); |
|
824 |
|
825 face_index -= num_faces_in_fond; |
|
826 } |
|
827 |
|
828 CloseResFile( res_ref ); |
|
829 if ( FT_Err_Ok == error && NULL != aface && NULL != *aface ) |
|
830 (*aface)->num_faces = num_faces_in_res; |
|
831 return error; |
|
832 } |
|
833 |
|
834 |
|
835 /* documentation is in ftmac.h */ |
|
836 |
|
837 FT_EXPORT_DEF( FT_Error ) |
|
838 FT_New_Face_From_FOND( FT_Library library, |
|
839 Handle fond, |
|
840 FT_Long face_index, |
|
841 FT_Face* aface ) |
|
842 { |
|
843 short have_sfnt, have_lwfn = 0; |
|
844 ResID sfnt_id, fond_id; |
|
845 OSType fond_type; |
|
846 Str255 fond_name; |
|
847 Str255 lwfn_file_name; |
|
848 UInt8 path_lwfn[PATH_MAX]; |
|
849 OSErr err; |
|
850 FT_Error error = FT_Err_Ok; |
|
851 |
|
852 |
|
853 GetResInfo( fond, &fond_id, &fond_type, fond_name ); |
|
854 if ( ResError() != noErr || fond_type != TTAG_FOND ) |
|
855 return FT_Err_Invalid_File_Format; |
|
856 |
|
857 parse_fond( *fond, &have_sfnt, &sfnt_id, lwfn_file_name, face_index ); |
|
858 |
|
859 if ( lwfn_file_name[0] ) |
|
860 { |
|
861 ResFileRefNum res; |
|
862 |
|
863 |
|
864 res = HomeResFile( fond ); |
|
865 if ( noErr != ResError() ) |
|
866 goto found_no_lwfn_file; |
|
867 |
|
868 { |
|
869 UInt8 path_fond[PATH_MAX]; |
|
870 FSRef ref; |
|
871 |
|
872 |
|
873 err = FSGetForkCBInfo( res, kFSInvalidVolumeRefNum, |
|
874 NULL, NULL, NULL, &ref, NULL ); |
|
875 if ( noErr != err ) |
|
876 goto found_no_lwfn_file; |
|
877 |
|
878 err = FSRefMakePath( &ref, path_fond, sizeof ( path_fond ) ); |
|
879 if ( noErr != err ) |
|
880 goto found_no_lwfn_file; |
|
881 |
|
882 error = lookup_lwfn_by_fond( path_fond, lwfn_file_name, |
|
883 path_lwfn, sizeof ( path_lwfn ) ); |
|
884 if ( FT_Err_Ok == error ) |
|
885 have_lwfn = 1; |
|
886 } |
|
887 } |
|
888 |
|
889 if ( have_lwfn && ( !have_sfnt || PREFER_LWFN ) ) |
|
890 error = FT_New_Face_From_LWFN( library, |
|
891 path_lwfn, |
|
892 face_index, |
|
893 aface ); |
|
894 else |
|
895 error = FT_Err_Unknown_File_Format; |
|
896 |
|
897 found_no_lwfn_file: |
|
898 if ( have_sfnt && FT_Err_Ok != error ) |
|
899 error = FT_New_Face_From_SFNT( library, |
|
900 sfnt_id, |
|
901 face_index, |
|
902 aface ); |
|
903 |
|
904 return error; |
|
905 } |
|
906 |
|
907 |
|
908 /* Common function to load a new FT_Face from a resource file. */ |
|
909 static FT_Error |
|
910 FT_New_Face_From_Resource( FT_Library library, |
|
911 const UInt8* pathname, |
|
912 FT_Long face_index, |
|
913 FT_Face* aface ) |
|
914 { |
|
915 OSType file_type; |
|
916 FT_Error error; |
|
917 |
|
918 |
|
919 /* LWFN is a (very) specific file format, check for it explicitly */ |
|
920 file_type = get_file_type_from_path( pathname ); |
|
921 if ( file_type == TTAG_LWFN ) |
|
922 return FT_New_Face_From_LWFN( library, pathname, face_index, aface ); |
|
923 |
|
924 /* Otherwise the file type doesn't matter (there are more than */ |
|
925 /* `FFIL' and `tfil'). Just try opening it as a font suitcase; */ |
|
926 /* if it works, fine. */ |
|
927 |
|
928 error = FT_New_Face_From_Suitcase( library, pathname, face_index, aface ); |
|
929 if ( error == 0 ) |
|
930 return error; |
|
931 |
|
932 /* let it fall through to normal loader (.ttf, .otf, etc.); */ |
|
933 /* we signal this by returning no error and no FT_Face */ |
|
934 *aface = NULL; |
|
935 return 0; |
|
936 } |
|
937 |
|
938 |
|
939 /*************************************************************************/ |
|
940 /* */ |
|
941 /* <Function> */ |
|
942 /* FT_New_Face */ |
|
943 /* */ |
|
944 /* <Description> */ |
|
945 /* This is the Mac-specific implementation of FT_New_Face. In */ |
|
946 /* addition to the standard FT_New_Face() functionality, it also */ |
|
947 /* accepts pathnames to Mac suitcase files. For further */ |
|
948 /* documentation see the original FT_New_Face() in freetype.h. */ |
|
949 /* */ |
|
950 FT_EXPORT_DEF( FT_Error ) |
|
951 FT_New_Face( FT_Library library, |
|
952 const char* pathname, |
|
953 FT_Long face_index, |
|
954 FT_Face* aface ) |
|
955 { |
|
956 FT_Open_Args args; |
|
957 FT_Error error; |
|
958 |
|
959 |
|
960 /* test for valid `library' and `aface' delayed to FT_Open_Face() */ |
|
961 if ( !pathname ) |
|
962 return FT_Err_Invalid_Argument; |
|
963 |
|
964 error = FT_Err_Ok; |
|
965 *aface = NULL; |
|
966 |
|
967 /* try resourcefork based font: LWFN, FFIL */ |
|
968 error = FT_New_Face_From_Resource( library, (UInt8 *)pathname, |
|
969 face_index, aface ); |
|
970 if ( error != 0 || *aface != NULL ) |
|
971 return error; |
|
972 |
|
973 /* let it fall through to normal loader (.ttf, .otf, etc.) */ |
|
974 args.flags = FT_OPEN_PATHNAME; |
|
975 args.pathname = (char*)pathname; |
|
976 return FT_Open_Face( library, &args, face_index, aface ); |
|
977 } |
|
978 |
|
979 |
|
980 /*************************************************************************/ |
|
981 /* */ |
|
982 /* <Function> */ |
|
983 /* FT_New_Face_From_FSRef */ |
|
984 /* */ |
|
985 /* <Description> */ |
|
986 /* FT_New_Face_From_FSRef is identical to FT_New_Face except it */ |
|
987 /* accepts an FSRef instead of a path. */ |
|
988 /* */ |
|
989 /* This function is deprecated because Carbon data types (FSRef) */ |
|
990 /* are not cross-platform, and thus not suitable for the freetype API. */ |
|
991 FT_EXPORT_DEF( FT_Error ) |
|
992 FT_New_Face_From_FSRef( FT_Library library, |
|
993 const FSRef* ref, |
|
994 FT_Long face_index, |
|
995 FT_Face* aface ) |
|
996 { |
|
997 FT_Error error; |
|
998 FT_Open_Args args; |
|
999 OSErr err; |
|
1000 UInt8 pathname[PATH_MAX]; |
|
1001 |
|
1002 |
|
1003 if ( !ref ) |
|
1004 return FT_Err_Invalid_Argument; |
|
1005 |
|
1006 err = FSRefMakePath( ref, pathname, sizeof ( pathname ) ); |
|
1007 if ( err ) |
|
1008 error = FT_Err_Cannot_Open_Resource; |
|
1009 |
|
1010 error = FT_New_Face_From_Resource( library, pathname, face_index, aface ); |
|
1011 if ( error != 0 || *aface != NULL ) |
|
1012 return error; |
|
1013 |
|
1014 /* fallback to datafork font */ |
|
1015 args.flags = FT_OPEN_PATHNAME; |
|
1016 args.pathname = (char*)pathname; |
|
1017 return FT_Open_Face( library, &args, face_index, aface ); |
|
1018 } |
|
1019 |
|
1020 |
|
1021 /*************************************************************************/ |
|
1022 /* */ |
|
1023 /* <Function> */ |
|
1024 /* FT_New_Face_From_FSSpec */ |
|
1025 /* */ |
|
1026 /* <Description> */ |
|
1027 /* FT_New_Face_From_FSSpec is identical to FT_New_Face except it */ |
|
1028 /* accepts an FSSpec instead of a path. */ |
|
1029 /* */ |
|
1030 /* This function is deprecated because FSSpec is deprecated in Mac OS X */ |
|
1031 FT_EXPORT_DEF( FT_Error ) |
|
1032 FT_New_Face_From_FSSpec( FT_Library library, |
|
1033 const FSSpec* spec, |
|
1034 FT_Long face_index, |
|
1035 FT_Face* aface ) |
|
1036 { |
|
1037 #if ( __LP64__ ) || ( defined( MAC_OS_X_VERSION_10_5 ) && \ |
|
1038 ( MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5 ) ) |
|
1039 FT_UNUSED( library ); |
|
1040 FT_UNUSED( spec ); |
|
1041 FT_UNUSED( face_index ); |
|
1042 FT_UNUSED( aface ); |
|
1043 |
|
1044 return FT_Err_Unimplemented_Feature; |
|
1045 #else |
|
1046 FSRef ref; |
|
1047 |
|
1048 |
|
1049 if ( !spec || FSpMakeFSRef( spec, &ref ) != noErr ) |
|
1050 return FT_Err_Invalid_Argument; |
|
1051 else |
|
1052 return FT_New_Face_From_FSRef( library, &ref, face_index, aface ); |
|
1053 #endif |
|
1054 } |
|
1055 |
|
1056 |
|
1057 /* END */ |
|