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5172
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/***************************************************************************/
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2 |
/* */
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3 |
/* ftobjs.c */
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4 |
/* */
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5 |
/* The FreeType private base classes (body). */
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6 |
/* */
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7 |
/* Copyright 1996-2011 by */
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8 |
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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9 |
/* */
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10 |
/* This file is part of the FreeType project, and may only be used, */
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11 |
/* modified, and distributed under the terms of the FreeType project */
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12 |
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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13 |
/* this file you indicate that you have read the license and */
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14 |
/* understand and accept it fully. */
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15 |
/* */
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16 |
/***************************************************************************/
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17 |
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18 |
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19 |
#include <ft2build.h>
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20 |
#include FT_LIST_H
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21 |
#include FT_OUTLINE_H
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22 |
#include FT_INTERNAL_VALIDATE_H
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23 |
#include FT_INTERNAL_OBJECTS_H
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24 |
#include FT_INTERNAL_DEBUG_H
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25 |
#include FT_INTERNAL_RFORK_H
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26 |
#include FT_INTERNAL_STREAM_H
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27 |
#include FT_INTERNAL_SFNT_H /* for SFNT_Load_Table_Func */
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28 |
#include FT_TRUETYPE_TABLES_H
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29 |
#include FT_TRUETYPE_TAGS_H
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30 |
#include FT_TRUETYPE_IDS_H
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31 |
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32 |
#include FT_SERVICE_SFNT_H
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33 |
#include FT_SERVICE_POSTSCRIPT_NAME_H
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34 |
#include FT_SERVICE_GLYPH_DICT_H
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35 |
#include FT_SERVICE_TT_CMAP_H
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36 |
#include FT_SERVICE_KERNING_H
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37 |
#include FT_SERVICE_TRUETYPE_ENGINE_H
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38 |
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39 |
#ifdef FT_CONFIG_OPTION_MAC_FONTS
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40 |
#include "ftbase.h"
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41 |
#endif
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42 |
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43 |
#define GRID_FIT_METRICS
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44 |
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45 |
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46 |
FT_BASE_DEF( FT_Pointer )
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47 |
ft_service_list_lookup( FT_ServiceDesc service_descriptors,
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48 |
const char* service_id )
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49 |
{
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50 |
FT_Pointer result = NULL;
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51 |
FT_ServiceDesc desc = service_descriptors;
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52 |
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53 |
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54 |
if ( desc && service_id )
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55 |
{
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56 |
for ( ; desc->serv_id != NULL; desc++ )
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57 |
{
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58 |
if ( ft_strcmp( desc->serv_id, service_id ) == 0 )
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59 |
{
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60 |
result = (FT_Pointer)desc->serv_data;
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61 |
break;
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62 |
}
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}
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}
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65 |
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return result;
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}
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68 |
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69 |
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70 |
FT_BASE_DEF( void )
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71 |
ft_validator_init( FT_Validator valid,
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72 |
const FT_Byte* base,
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73 |
const FT_Byte* limit,
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74 |
FT_ValidationLevel level )
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75 |
{
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76 |
valid->base = base;
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77 |
valid->limit = limit;
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78 |
valid->level = level;
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79 |
valid->error = FT_Err_Ok;
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80 |
}
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81 |
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82 |
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83 |
FT_BASE_DEF( FT_Int )
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84 |
ft_validator_run( FT_Validator valid )
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85 |
{
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86 |
/* This function doesn't work! None should call it. */
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87 |
FT_UNUSED( valid );
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88 |
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89 |
return -1;
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90 |
}
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91 |
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92 |
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93 |
FT_BASE_DEF( void )
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94 |
ft_validator_error( FT_Validator valid,
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95 |
FT_Error error )
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96 |
{
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97 |
/* since the cast below also disables the compiler's */
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98 |
/* type check, we introduce a dummy variable, which */
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99 |
/* will be optimized away */
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100 |
volatile ft_jmp_buf* jump_buffer = &valid->jump_buffer;
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101 |
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102 |
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103 |
valid->error = error;
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104 |
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105 |
/* throw away volatileness; use `jump_buffer' or the */
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106 |
/* compiler may warn about an unused local variable */
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107 |
ft_longjmp( *(ft_jmp_buf*) jump_buffer, 1 );
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108 |
}
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109 |
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110 |
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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 |
/**** ****/
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116 |
/**** S T R E A M ****/
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117 |
/**** ****/
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118 |
/**** ****/
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119 |
/*************************************************************************/
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120 |
/*************************************************************************/
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121 |
/*************************************************************************/
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122 |
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123 |
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124 |
/* create a new input stream from an FT_Open_Args structure */
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125 |
/* */
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126 |
FT_BASE_DEF( FT_Error )
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127 |
FT_Stream_New( FT_Library library,
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128 |
const FT_Open_Args* args,
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129 |
FT_Stream *astream )
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130 |
{
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131 |
FT_Error error;
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132 |
FT_Memory memory;
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133 |
FT_Stream stream;
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134 |
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135 |
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136 |
*astream = 0;
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137 |
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138 |
if ( !library )
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139 |
return FT_Err_Invalid_Library_Handle;
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140 |
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141 |
if ( !args )
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142 |
return FT_Err_Invalid_Argument;
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143 |
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144 |
memory = library->memory;
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145 |
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146 |
if ( FT_NEW( stream ) )
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147 |
goto Exit;
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148 |
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149 |
stream->memory = memory;
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150 |
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151 |
if ( args->flags & FT_OPEN_MEMORY )
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152 |
{
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153 |
/* create a memory-based stream */
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154 |
FT_Stream_OpenMemory( stream,
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155 |
(const FT_Byte*)args->memory_base,
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156 |
args->memory_size );
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157 |
}
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158 |
else if ( args->flags & FT_OPEN_PATHNAME )
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159 |
{
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160 |
/* create a normal system stream */
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161 |
error = FT_Stream_Open( stream, args->pathname );
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162 |
stream->pathname.pointer = args->pathname;
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163 |
}
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164 |
else if ( ( args->flags & FT_OPEN_STREAM ) && args->stream )
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165 |
{
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166 |
/* use an existing, user-provided stream */
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167 |
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168 |
/* in this case, we do not need to allocate a new stream object */
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169 |
/* since the caller is responsible for closing it himself */
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170 |
FT_FREE( stream );
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171 |
stream = args->stream;
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172 |
}
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173 |
else
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174 |
error = FT_Err_Invalid_Argument;
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175 |
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176 |
if ( error )
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177 |
FT_FREE( stream );
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178 |
else
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179 |
stream->memory = memory; /* just to be certain */
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180 |
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181 |
*astream = stream;
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182 |
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183 |
Exit:
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184 |
return error;
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185 |
}
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186 |
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187 |
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188 |
FT_BASE_DEF( void )
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189 |
FT_Stream_Free( FT_Stream stream,
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190 |
FT_Int external )
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191 |
{
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192 |
if ( stream )
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193 |
{
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194 |
FT_Memory memory = stream->memory;
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195 |
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196 |
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197 |
FT_Stream_Close( stream );
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198 |
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199 |
if ( !external )
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200 |
FT_FREE( stream );
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201 |
}
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202 |
}
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203 |
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204 |
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205 |
/*************************************************************************/
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206 |
/* */
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207 |
/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
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208 |
/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
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209 |
/* messages during execution. */
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210 |
/* */
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211 |
#undef FT_COMPONENT
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212 |
#define FT_COMPONENT trace_objs
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213 |
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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 |
/**** ****/
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219 |
/**** ****/
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220 |
/**** FACE, SIZE & GLYPH SLOT OBJECTS ****/
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221 |
/**** ****/
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222 |
/**** ****/
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223 |
/*************************************************************************/
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224 |
/*************************************************************************/
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225 |
/*************************************************************************/
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226 |
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227 |
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228 |
static FT_Error
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229 |
ft_glyphslot_init( FT_GlyphSlot slot )
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230 |
{
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231 |
FT_Driver driver = slot->face->driver;
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232 |
FT_Driver_Class clazz = driver->clazz;
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233 |
FT_Memory memory = driver->root.memory;
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234 |
FT_Error error = FT_Err_Ok;
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235 |
FT_Slot_Internal internal = NULL;
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236 |
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237 |
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238 |
slot->library = driver->root.library;
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239 |
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240 |
if ( FT_NEW( internal ) )
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241 |
goto Exit;
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242 |
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243 |
slot->internal = internal;
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244 |
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245 |
if ( FT_DRIVER_USES_OUTLINES( driver ) )
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246 |
error = FT_GlyphLoader_New( memory, &internal->loader );
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247 |
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248 |
if ( !error && clazz->init_slot )
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249 |
error = clazz->init_slot( slot );
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250 |
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251 |
Exit:
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252 |
return error;
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253 |
}
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254 |
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255 |
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256 |
FT_BASE_DEF( void )
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257 |
ft_glyphslot_free_bitmap( FT_GlyphSlot slot )
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258 |
{
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259 |
if ( slot->internal && ( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) )
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260 |
{
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261 |
FT_Memory memory = FT_FACE_MEMORY( slot->face );
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262 |
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263 |
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264 |
FT_FREE( slot->bitmap.buffer );
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265 |
slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
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266 |
}
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267 |
else
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268 |
{
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269 |
/* assume that the bitmap buffer was stolen or not */
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270 |
/* allocated from the heap */
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271 |
slot->bitmap.buffer = NULL;
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272 |
}
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273 |
}
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274 |
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275 |
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276 |
FT_BASE_DEF( void )
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277 |
ft_glyphslot_set_bitmap( FT_GlyphSlot slot,
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278 |
FT_Byte* buffer )
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279 |
{
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280 |
ft_glyphslot_free_bitmap( slot );
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281 |
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282 |
slot->bitmap.buffer = buffer;
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283 |
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284 |
FT_ASSERT( (slot->internal->flags & FT_GLYPH_OWN_BITMAP) == 0 );
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285 |
}
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286 |
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287 |
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288 |
FT_BASE_DEF( FT_Error )
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289 |
ft_glyphslot_alloc_bitmap( FT_GlyphSlot slot,
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290 |
FT_ULong size )
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|
291 |
{
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292 |
FT_Memory memory = FT_FACE_MEMORY( slot->face );
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293 |
FT_Error error;
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294 |
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295 |
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296 |
if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
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297 |
FT_FREE( slot->bitmap.buffer );
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298 |
else
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299 |
slot->internal->flags |= FT_GLYPH_OWN_BITMAP;
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300 |
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301 |
(void)FT_ALLOC( slot->bitmap.buffer, size );
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302 |
return error;
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303 |
}
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304 |
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305 |
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306 |
static void
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307 |
ft_glyphslot_clear( FT_GlyphSlot slot )
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|
308 |
{
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|
309 |
/* free bitmap if needed */
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310 |
ft_glyphslot_free_bitmap( slot );
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311 |
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312 |
/* clear all public fields in the glyph slot */
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313 |
FT_ZERO( &slot->metrics );
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314 |
FT_ZERO( &slot->outline );
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315 |
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316 |
slot->bitmap.width = 0;
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317 |
slot->bitmap.rows = 0;
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318 |
slot->bitmap.pitch = 0;
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319 |
slot->bitmap.pixel_mode = 0;
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|
320 |
/* `slot->bitmap.buffer' has been handled by ft_glyphslot_free_bitmap */
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321 |
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322 |
slot->bitmap_left = 0;
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323 |
slot->bitmap_top = 0;
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324 |
slot->num_subglyphs = 0;
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325 |
slot->subglyphs = 0;
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326 |
slot->control_data = 0;
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327 |
slot->control_len = 0;
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328 |
slot->other = 0;
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329 |
slot->format = FT_GLYPH_FORMAT_NONE;
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330 |
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|
331 |
slot->linearHoriAdvance = 0;
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|
332 |
slot->linearVertAdvance = 0;
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|
333 |
slot->lsb_delta = 0;
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|
334 |
slot->rsb_delta = 0;
|
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|
335 |
}
|
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|
336 |
|
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|
337 |
|
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|
338 |
static void
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|
339 |
ft_glyphslot_done( FT_GlyphSlot slot )
|
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|
340 |
{
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|
341 |
FT_Driver driver = slot->face->driver;
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|
342 |
FT_Driver_Class clazz = driver->clazz;
|
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|
343 |
FT_Memory memory = driver->root.memory;
|
|
|
344 |
|
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345 |
|
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|
346 |
if ( clazz->done_slot )
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|
347 |
clazz->done_slot( slot );
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|
348 |
|
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|
349 |
/* free bitmap buffer if needed */
|
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|
350 |
ft_glyphslot_free_bitmap( slot );
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|
351 |
|
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|
352 |
/* slot->internal might be NULL in out-of-memory situations */
|
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|
353 |
if ( slot->internal )
|
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|
354 |
{
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|
355 |
/* free glyph loader */
|
|
|
356 |
if ( FT_DRIVER_USES_OUTLINES( driver ) )
|
|
|
357 |
{
|
|
|
358 |
FT_GlyphLoader_Done( slot->internal->loader );
|
|
|
359 |
slot->internal->loader = 0;
|
|
|
360 |
}
|
|
|
361 |
|
|
|
362 |
FT_FREE( slot->internal );
|
|
|
363 |
}
|
|
|
364 |
}
|
|
|
365 |
|
|
|
366 |
|
|
|
367 |
/* documentation is in ftobjs.h */
|
|
|
368 |
|
|
|
369 |
FT_BASE_DEF( FT_Error )
|
|
|
370 |
FT_New_GlyphSlot( FT_Face face,
|
|
|
371 |
FT_GlyphSlot *aslot )
|
|
|
372 |
{
|
|
|
373 |
FT_Error error;
|
|
|
374 |
FT_Driver driver;
|
|
|
375 |
FT_Driver_Class clazz;
|
|
|
376 |
FT_Memory memory;
|
|
|
377 |
FT_GlyphSlot slot;
|
|
|
378 |
|
|
|
379 |
|
|
|
380 |
if ( !face || !face->driver )
|
|
|
381 |
return FT_Err_Invalid_Argument;
|
|
|
382 |
|
|
|
383 |
driver = face->driver;
|
|
|
384 |
clazz = driver->clazz;
|
|
|
385 |
memory = driver->root.memory;
|
|
|
386 |
|
|
|
387 |
FT_TRACE4(( "FT_New_GlyphSlot: Creating new slot object\n" ));
|
|
|
388 |
if ( !FT_ALLOC( slot, clazz->slot_object_size ) )
|
|
|
389 |
{
|
|
|
390 |
slot->face = face;
|
|
|
391 |
|
|
|
392 |
error = ft_glyphslot_init( slot );
|
|
|
393 |
if ( error )
|
|
|
394 |
{
|
|
|
395 |
ft_glyphslot_done( slot );
|
|
|
396 |
FT_FREE( slot );
|
|
|
397 |
goto Exit;
|
|
|
398 |
}
|
|
|
399 |
|
|
|
400 |
slot->next = face->glyph;
|
|
|
401 |
face->glyph = slot;
|
|
|
402 |
|
|
|
403 |
if ( aslot )
|
|
|
404 |
*aslot = slot;
|
|
|
405 |
}
|
|
|
406 |
else if ( aslot )
|
|
|
407 |
*aslot = 0;
|
|
|
408 |
|
|
|
409 |
|
|
|
410 |
Exit:
|
|
|
411 |
FT_TRACE4(( "FT_New_GlyphSlot: Return %d\n", error ));
|
|
|
412 |
return error;
|
|
|
413 |
}
|
|
|
414 |
|
|
|
415 |
|
|
|
416 |
/* documentation is in ftobjs.h */
|
|
|
417 |
|
|
|
418 |
FT_BASE_DEF( void )
|
|
|
419 |
FT_Done_GlyphSlot( FT_GlyphSlot slot )
|
|
|
420 |
{
|
|
|
421 |
if ( slot )
|
|
|
422 |
{
|
|
|
423 |
FT_Driver driver = slot->face->driver;
|
|
|
424 |
FT_Memory memory = driver->root.memory;
|
|
|
425 |
FT_GlyphSlot prev;
|
|
|
426 |
FT_GlyphSlot cur;
|
|
|
427 |
|
|
|
428 |
|
|
|
429 |
/* Remove slot from its parent face's list */
|
|
|
430 |
prev = NULL;
|
|
|
431 |
cur = slot->face->glyph;
|
|
|
432 |
|
|
|
433 |
while ( cur )
|
|
|
434 |
{
|
|
|
435 |
if ( cur == slot )
|
|
|
436 |
{
|
|
|
437 |
if ( !prev )
|
|
|
438 |
slot->face->glyph = cur->next;
|
|
|
439 |
else
|
|
|
440 |
prev->next = cur->next;
|
|
|
441 |
|
|
|
442 |
ft_glyphslot_done( slot );
|
|
|
443 |
FT_FREE( slot );
|
|
|
444 |
break;
|
|
|
445 |
}
|
|
|
446 |
prev = cur;
|
|
|
447 |
cur = cur->next;
|
|
|
448 |
}
|
|
|
449 |
}
|
|
|
450 |
}
|
|
|
451 |
|
|
|
452 |
|
|
|
453 |
/* documentation is in freetype.h */
|
|
|
454 |
|
|
|
455 |
FT_EXPORT_DEF( void )
|
|
|
456 |
FT_Set_Transform( FT_Face face,
|
|
|
457 |
FT_Matrix* matrix,
|
|
|
458 |
FT_Vector* delta )
|
|
|
459 |
{
|
|
|
460 |
FT_Face_Internal internal;
|
|
|
461 |
|
|
|
462 |
|
|
|
463 |
if ( !face )
|
|
|
464 |
return;
|
|
|
465 |
|
|
|
466 |
internal = face->internal;
|
|
|
467 |
|
|
|
468 |
internal->transform_flags = 0;
|
|
|
469 |
|
|
|
470 |
if ( !matrix )
|
|
|
471 |
{
|
|
|
472 |
internal->transform_matrix.xx = 0x10000L;
|
|
|
473 |
internal->transform_matrix.xy = 0;
|
|
|
474 |
internal->transform_matrix.yx = 0;
|
|
|
475 |
internal->transform_matrix.yy = 0x10000L;
|
|
|
476 |
matrix = &internal->transform_matrix;
|
|
|
477 |
}
|
|
|
478 |
else
|
|
|
479 |
internal->transform_matrix = *matrix;
|
|
|
480 |
|
|
|
481 |
/* set transform_flags bit flag 0 if `matrix' isn't the identity */
|
|
|
482 |
if ( ( matrix->xy | matrix->yx ) ||
|
|
|
483 |
matrix->xx != 0x10000L ||
|
|
|
484 |
matrix->yy != 0x10000L )
|
|
|
485 |
internal->transform_flags |= 1;
|
|
|
486 |
|
|
|
487 |
if ( !delta )
|
|
|
488 |
{
|
|
|
489 |
internal->transform_delta.x = 0;
|
|
|
490 |
internal->transform_delta.y = 0;
|
|
|
491 |
delta = &internal->transform_delta;
|
|
|
492 |
}
|
|
|
493 |
else
|
|
|
494 |
internal->transform_delta = *delta;
|
|
|
495 |
|
|
|
496 |
/* set transform_flags bit flag 1 if `delta' isn't the null vector */
|
|
|
497 |
if ( delta->x | delta->y )
|
|
|
498 |
internal->transform_flags |= 2;
|
|
|
499 |
}
|
|
|
500 |
|
|
|
501 |
|
|
|
502 |
static FT_Renderer
|
|
|
503 |
ft_lookup_glyph_renderer( FT_GlyphSlot slot );
|
|
|
504 |
|
|
|
505 |
|
|
|
506 |
#ifdef GRID_FIT_METRICS
|
|
|
507 |
static void
|
|
|
508 |
ft_glyphslot_grid_fit_metrics( FT_GlyphSlot slot,
|
|
|
509 |
FT_Bool vertical )
|
|
|
510 |
{
|
|
|
511 |
FT_Glyph_Metrics* metrics = &slot->metrics;
|
|
|
512 |
FT_Pos right, bottom;
|
|
|
513 |
|
|
|
514 |
|
|
|
515 |
if ( vertical )
|
|
|
516 |
{
|
|
|
517 |
metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX );
|
|
|
518 |
metrics->horiBearingY = FT_PIX_CEIL ( metrics->horiBearingY );
|
|
|
519 |
|
|
|
520 |
right = FT_PIX_CEIL( metrics->vertBearingX + metrics->width );
|
|
|
521 |
bottom = FT_PIX_CEIL( metrics->vertBearingY + metrics->height );
|
|
|
522 |
|
|
|
523 |
metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX );
|
|
|
524 |
metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY );
|
|
|
525 |
|
|
|
526 |
metrics->width = right - metrics->vertBearingX;
|
|
|
527 |
metrics->height = bottom - metrics->vertBearingY;
|
|
|
528 |
}
|
|
|
529 |
else
|
|
|
530 |
{
|
|
|
531 |
metrics->vertBearingX = FT_PIX_FLOOR( metrics->vertBearingX );
|
|
|
532 |
metrics->vertBearingY = FT_PIX_FLOOR( metrics->vertBearingY );
|
|
|
533 |
|
|
|
534 |
right = FT_PIX_CEIL ( metrics->horiBearingX + metrics->width );
|
|
|
535 |
bottom = FT_PIX_FLOOR( metrics->horiBearingY - metrics->height );
|
|
|
536 |
|
|
|
537 |
metrics->horiBearingX = FT_PIX_FLOOR( metrics->horiBearingX );
|
|
|
538 |
metrics->horiBearingY = FT_PIX_CEIL ( metrics->horiBearingY );
|
|
|
539 |
|
|
|
540 |
metrics->width = right - metrics->horiBearingX;
|
|
|
541 |
metrics->height = metrics->horiBearingY - bottom;
|
|
|
542 |
}
|
|
|
543 |
|
|
|
544 |
metrics->horiAdvance = FT_PIX_ROUND( metrics->horiAdvance );
|
|
|
545 |
metrics->vertAdvance = FT_PIX_ROUND( metrics->vertAdvance );
|
|
|
546 |
}
|
|
|
547 |
#endif /* GRID_FIT_METRICS */
|
|
|
548 |
|
|
|
549 |
|
|
|
550 |
/* documentation is in freetype.h */
|
|
|
551 |
|
|
|
552 |
FT_EXPORT_DEF( FT_Error )
|
|
|
553 |
FT_Load_Glyph( FT_Face face,
|
|
|
554 |
FT_UInt glyph_index,
|
|
|
555 |
FT_Int32 load_flags )
|
|
|
556 |
{
|
|
|
557 |
FT_Error error;
|
|
|
558 |
FT_Driver driver;
|
|
|
559 |
FT_GlyphSlot slot;
|
|
|
560 |
FT_Library library;
|
|
|
561 |
FT_Bool autohint = FALSE;
|
|
|
562 |
FT_Module hinter;
|
|
|
563 |
TT_Face ttface = (TT_Face)face;
|
|
|
564 |
|
|
|
565 |
|
|
|
566 |
if ( !face || !face->size || !face->glyph )
|
|
|
567 |
return FT_Err_Invalid_Face_Handle;
|
|
|
568 |
|
|
|
569 |
/* The validity test for `glyph_index' is performed by the */
|
|
|
570 |
/* font drivers. */
|
|
|
571 |
|
|
|
572 |
slot = face->glyph;
|
|
|
573 |
ft_glyphslot_clear( slot );
|
|
|
574 |
|
|
|
575 |
driver = face->driver;
|
|
|
576 |
library = driver->root.library;
|
|
|
577 |
hinter = library->auto_hinter;
|
|
|
578 |
|
|
|
579 |
/* resolve load flags dependencies */
|
|
|
580 |
|
|
|
581 |
if ( load_flags & FT_LOAD_NO_RECURSE )
|
|
|
582 |
load_flags |= FT_LOAD_NO_SCALE |
|
|
|
583 |
FT_LOAD_IGNORE_TRANSFORM;
|
|
|
584 |
|
|
|
585 |
if ( load_flags & FT_LOAD_NO_SCALE )
|
|
|
586 |
{
|
|
|
587 |
load_flags |= FT_LOAD_NO_HINTING |
|
|
|
588 |
FT_LOAD_NO_BITMAP;
|
|
|
589 |
|
|
|
590 |
load_flags &= ~FT_LOAD_RENDER;
|
|
|
591 |
}
|
|
|
592 |
|
|
|
593 |
/*
|
|
|
594 |
* Determine whether we need to auto-hint or not.
|
|
|
595 |
* The general rules are:
|
|
|
596 |
*
|
|
|
597 |
* - Do only auto-hinting if we have a hinter module, a scalable font
|
|
|
598 |
* format dealing with outlines, and no transforms except simple
|
|
|
599 |
* slants and/or rotations by integer multiples of 90 degrees.
|
|
|
600 |
*
|
|
|
601 |
* - Then, auto-hint if FT_LOAD_FORCE_AUTOHINT is set or if we don't
|
|
|
602 |
* have a native font hinter.
|
|
|
603 |
*
|
|
|
604 |
* - Otherwise, auto-hint for LIGHT hinting mode or if there isn't
|
|
|
605 |
* any hinting bytecode in the TrueType/OpenType font.
|
|
|
606 |
*
|
|
|
607 |
* - Exception: The font is `tricky' and requires the native hinter to
|
|
|
608 |
* load properly.
|
|
|
609 |
*/
|
|
|
610 |
|
|
|
611 |
if ( hinter &&
|
|
|
612 |
!( load_flags & FT_LOAD_NO_HINTING ) &&
|
|
|
613 |
!( load_flags & FT_LOAD_NO_AUTOHINT ) &&
|
|
|
614 |
FT_DRIVER_IS_SCALABLE( driver ) &&
|
|
|
615 |
FT_DRIVER_USES_OUTLINES( driver ) &&
|
|
|
616 |
!FT_IS_TRICKY( face ) &&
|
|
|
617 |
( ( face->internal->transform_matrix.yx == 0 &&
|
|
|
618 |
face->internal->transform_matrix.xx != 0 ) ||
|
|
|
619 |
( face->internal->transform_matrix.xx == 0 &&
|
|
|
620 |
face->internal->transform_matrix.yx != 0 ) ) )
|
|
|
621 |
{
|
|
|
622 |
if ( ( load_flags & FT_LOAD_FORCE_AUTOHINT ) ||
|
|
|
623 |
!FT_DRIVER_HAS_HINTER( driver ) )
|
|
|
624 |
autohint = TRUE;
|
|
|
625 |
else
|
|
|
626 |
{
|
|
|
627 |
FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags );
|
|
|
628 |
|
|
|
629 |
|
|
|
630 |
/* the check for `num_locations' assures that we actually */
|
|
|
631 |
/* test for instructions in a TTF and not in a CFF-based OTF */
|
|
|
632 |
if ( mode == FT_RENDER_MODE_LIGHT ||
|
|
|
633 |
face->internal->ignore_unpatented_hinter ||
|
|
|
634 |
( FT_IS_SFNT( face ) &&
|
|
|
635 |
ttface->num_locations &&
|
|
|
636 |
ttface->max_profile.maxSizeOfInstructions == 0 ) )
|
|
|
637 |
autohint = TRUE;
|
|
|
638 |
}
|
|
|
639 |
}
|
|
|
640 |
|
|
|
641 |
if ( autohint )
|
|
|
642 |
{
|
|
|
643 |
FT_AutoHinter_Service hinting;
|
|
|
644 |
|
|
|
645 |
|
|
|
646 |
/* try to load embedded bitmaps first if available */
|
|
|
647 |
/* */
|
|
|
648 |
/* XXX: This is really a temporary hack that should disappear */
|
|
|
649 |
/* promptly with FreeType 2.1! */
|
|
|
650 |
/* */
|
|
|
651 |
if ( FT_HAS_FIXED_SIZES( face ) &&
|
|
|
652 |
( load_flags & FT_LOAD_NO_BITMAP ) == 0 )
|
|
|
653 |
{
|
|
|
654 |
error = driver->clazz->load_glyph( slot, face->size,
|
|
|
655 |
glyph_index,
|
|
|
656 |
load_flags | FT_LOAD_SBITS_ONLY );
|
|
|
657 |
|
|
|
658 |
if ( !error && slot->format == FT_GLYPH_FORMAT_BITMAP )
|
|
|
659 |
goto Load_Ok;
|
|
|
660 |
}
|
|
|
661 |
|
|
|
662 |
{
|
|
|
663 |
FT_Face_Internal internal = face->internal;
|
|
|
664 |
FT_Int transform_flags = internal->transform_flags;
|
|
|
665 |
|
|
|
666 |
|
|
|
667 |
/* since the auto-hinter calls FT_Load_Glyph by itself, */
|
|
|
668 |
/* make sure that glyphs aren't transformed */
|
|
|
669 |
internal->transform_flags = 0;
|
|
|
670 |
|
|
|
671 |
/* load auto-hinted outline */
|
|
|
672 |
hinting = (FT_AutoHinter_Service)hinter->clazz->module_interface;
|
|
|
673 |
|
|
|
674 |
error = hinting->load_glyph( (FT_AutoHinter)hinter,
|
|
|
675 |
slot, face->size,
|
|
|
676 |
glyph_index, load_flags );
|
|
|
677 |
|
|
|
678 |
internal->transform_flags = transform_flags;
|
|
|
679 |
}
|
|
|
680 |
}
|
|
|
681 |
else
|
|
|
682 |
{
|
|
|
683 |
error = driver->clazz->load_glyph( slot,
|
|
|
684 |
face->size,
|
|
|
685 |
glyph_index,
|
|
|
686 |
load_flags );
|
|
|
687 |
if ( error )
|
|
|
688 |
goto Exit;
|
|
|
689 |
|
|
|
690 |
if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
|
|
|
691 |
{
|
|
|
692 |
/* check that the loaded outline is correct */
|
|
|
693 |
error = FT_Outline_Check( &slot->outline );
|
|
|
694 |
if ( error )
|
|
|
695 |
goto Exit;
|
|
|
696 |
|
|
|
697 |
#ifdef GRID_FIT_METRICS
|
|
|
698 |
if ( !( load_flags & FT_LOAD_NO_HINTING ) )
|
|
|
699 |
ft_glyphslot_grid_fit_metrics( slot,
|
|
|
700 |
FT_BOOL( load_flags & FT_LOAD_VERTICAL_LAYOUT ) );
|
|
|
701 |
#endif
|
|
|
702 |
}
|
|
|
703 |
}
|
|
|
704 |
|
|
|
705 |
Load_Ok:
|
|
|
706 |
/* compute the advance */
|
|
|
707 |
if ( load_flags & FT_LOAD_VERTICAL_LAYOUT )
|
|
|
708 |
{
|
|
|
709 |
slot->advance.x = 0;
|
|
|
710 |
slot->advance.y = slot->metrics.vertAdvance;
|
|
|
711 |
}
|
|
|
712 |
else
|
|
|
713 |
{
|
|
|
714 |
slot->advance.x = slot->metrics.horiAdvance;
|
|
|
715 |
slot->advance.y = 0;
|
|
|
716 |
}
|
|
|
717 |
|
|
|
718 |
/* compute the linear advance in 16.16 pixels */
|
|
|
719 |
if ( ( load_flags & FT_LOAD_LINEAR_DESIGN ) == 0 &&
|
|
|
720 |
( FT_IS_SCALABLE( face ) ) )
|
|
|
721 |
{
|
|
|
722 |
FT_Size_Metrics* metrics = &face->size->metrics;
|
|
|
723 |
|
|
|
724 |
|
|
|
725 |
/* it's tricky! */
|
|
|
726 |
slot->linearHoriAdvance = FT_MulDiv( slot->linearHoriAdvance,
|
|
|
727 |
metrics->x_scale, 64 );
|
|
|
728 |
|
|
|
729 |
slot->linearVertAdvance = FT_MulDiv( slot->linearVertAdvance,
|
|
|
730 |
metrics->y_scale, 64 );
|
|
|
731 |
}
|
|
|
732 |
|
|
|
733 |
if ( ( load_flags & FT_LOAD_IGNORE_TRANSFORM ) == 0 )
|
|
|
734 |
{
|
|
|
735 |
FT_Face_Internal internal = face->internal;
|
|
|
736 |
|
|
|
737 |
|
|
|
738 |
/* now, transform the glyph image if needed */
|
|
|
739 |
if ( internal->transform_flags )
|
|
|
740 |
{
|
|
|
741 |
/* get renderer */
|
|
|
742 |
FT_Renderer renderer = ft_lookup_glyph_renderer( slot );
|
|
|
743 |
|
|
|
744 |
|
|
|
745 |
if ( renderer )
|
|
|
746 |
error = renderer->clazz->transform_glyph(
|
|
|
747 |
renderer, slot,
|
|
|
748 |
&internal->transform_matrix,
|
|
|
749 |
&internal->transform_delta );
|
|
|
750 |
else if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
|
|
|
751 |
{
|
|
|
752 |
/* apply `standard' transformation if no renderer is available */
|
|
|
753 |
if ( &internal->transform_matrix )
|
|
|
754 |
FT_Outline_Transform( &slot->outline,
|
|
|
755 |
&internal->transform_matrix );
|
|
|
756 |
|
|
|
757 |
if ( &internal->transform_delta )
|
|
|
758 |
FT_Outline_Translate( &slot->outline,
|
|
|
759 |
internal->transform_delta.x,
|
|
|
760 |
internal->transform_delta.y );
|
|
|
761 |
}
|
|
|
762 |
|
|
|
763 |
/* transform advance */
|
|
|
764 |
FT_Vector_Transform( &slot->advance, &internal->transform_matrix );
|
|
|
765 |
}
|
|
|
766 |
}
|
|
|
767 |
|
|
|
768 |
FT_TRACE5(( " x advance: %d\n" , slot->advance.x ));
|
|
|
769 |
FT_TRACE5(( " y advance: %d\n" , slot->advance.y ));
|
|
|
770 |
|
|
|
771 |
FT_TRACE5(( " linear x advance: %d\n" , slot->linearHoriAdvance ));
|
|
|
772 |
FT_TRACE5(( " linear y advance: %d\n" , slot->linearVertAdvance ));
|
|
|
773 |
|
|
|
774 |
/* do we need to render the image now? */
|
|
|
775 |
if ( !error &&
|
|
|
776 |
slot->format != FT_GLYPH_FORMAT_BITMAP &&
|
|
|
777 |
slot->format != FT_GLYPH_FORMAT_COMPOSITE &&
|
|
|
778 |
load_flags & FT_LOAD_RENDER )
|
|
|
779 |
{
|
|
|
780 |
FT_Render_Mode mode = FT_LOAD_TARGET_MODE( load_flags );
|
|
|
781 |
|
|
|
782 |
|
|
|
783 |
if ( mode == FT_RENDER_MODE_NORMAL &&
|
|
|
784 |
(load_flags & FT_LOAD_MONOCHROME ) )
|
|
|
785 |
mode = FT_RENDER_MODE_MONO;
|
|
|
786 |
|
|
|
787 |
error = FT_Render_Glyph( slot, mode );
|
|
|
788 |
}
|
|
|
789 |
|
|
|
790 |
Exit:
|
|
|
791 |
return error;
|
|
|
792 |
}
|
|
|
793 |
|
|
|
794 |
|
|
|
795 |
/* documentation is in freetype.h */
|
|
|
796 |
|
|
|
797 |
FT_EXPORT_DEF( FT_Error )
|
|
|
798 |
FT_Load_Char( FT_Face face,
|
|
|
799 |
FT_ULong char_code,
|
|
|
800 |
FT_Int32 load_flags )
|
|
|
801 |
{
|
|
|
802 |
FT_UInt glyph_index;
|
|
|
803 |
|
|
|
804 |
|
|
|
805 |
if ( !face )
|
|
|
806 |
return FT_Err_Invalid_Face_Handle;
|
|
|
807 |
|
|
|
808 |
glyph_index = (FT_UInt)char_code;
|
|
|
809 |
if ( face->charmap )
|
|
|
810 |
glyph_index = FT_Get_Char_Index( face, char_code );
|
|
|
811 |
|
|
|
812 |
return FT_Load_Glyph( face, glyph_index, load_flags );
|
|
|
813 |
}
|
|
|
814 |
|
|
|
815 |
|
|
|
816 |
/* destructor for sizes list */
|
|
|
817 |
static void
|
|
|
818 |
destroy_size( FT_Memory memory,
|
|
|
819 |
FT_Size size,
|
|
|
820 |
FT_Driver driver )
|
|
|
821 |
{
|
|
|
822 |
/* finalize client-specific data */
|
|
|
823 |
if ( size->generic.finalizer )
|
|
|
824 |
size->generic.finalizer( size );
|
|
|
825 |
|
|
|
826 |
/* finalize format-specific stuff */
|
|
|
827 |
if ( driver->clazz->done_size )
|
|
|
828 |
driver->clazz->done_size( size );
|
|
|
829 |
|
|
|
830 |
FT_FREE( size->internal );
|
|
|
831 |
FT_FREE( size );
|
|
|
832 |
}
|
|
|
833 |
|
|
|
834 |
|
|
|
835 |
static void
|
|
|
836 |
ft_cmap_done_internal( FT_CMap cmap );
|
|
|
837 |
|
|
|
838 |
|
|
|
839 |
static void
|
|
|
840 |
destroy_charmaps( FT_Face face,
|
|
|
841 |
FT_Memory memory )
|
|
|
842 |
{
|
|
|
843 |
FT_Int n;
|
|
|
844 |
|
|
|
845 |
|
|
|
846 |
if ( !face )
|
|
|
847 |
return;
|
|
|
848 |
|
|
|
849 |
for ( n = 0; n < face->num_charmaps; n++ )
|
|
|
850 |
{
|
|
|
851 |
FT_CMap cmap = FT_CMAP( face->charmaps[n] );
|
|
|
852 |
|
|
|
853 |
|
|
|
854 |
ft_cmap_done_internal( cmap );
|
|
|
855 |
|
|
|
856 |
face->charmaps[n] = NULL;
|
|
|
857 |
}
|
|
|
858 |
|
|
|
859 |
FT_FREE( face->charmaps );
|
|
|
860 |
face->num_charmaps = 0;
|
|
|
861 |
}
|
|
|
862 |
|
|
|
863 |
|
|
|
864 |
/* destructor for faces list */
|
|
|
865 |
static void
|
|
|
866 |
destroy_face( FT_Memory memory,
|
|
|
867 |
FT_Face face,
|
|
|
868 |
FT_Driver driver )
|
|
|
869 |
{
|
|
|
870 |
FT_Driver_Class clazz = driver->clazz;
|
|
|
871 |
|
|
|
872 |
|
|
|
873 |
/* discard auto-hinting data */
|
|
|
874 |
if ( face->autohint.finalizer )
|
|
|
875 |
face->autohint.finalizer( face->autohint.data );
|
|
|
876 |
|
|
|
877 |
/* Discard glyph slots for this face. */
|
|
|
878 |
/* Beware! FT_Done_GlyphSlot() changes the field `face->glyph' */
|
|
|
879 |
while ( face->glyph )
|
|
|
880 |
FT_Done_GlyphSlot( face->glyph );
|
|
|
881 |
|
|
|
882 |
/* discard all sizes for this face */
|
|
|
883 |
FT_List_Finalize( &face->sizes_list,
|
|
|
884 |
(FT_List_Destructor)destroy_size,
|
|
|
885 |
memory,
|
|
|
886 |
driver );
|
|
|
887 |
face->size = 0;
|
|
|
888 |
|
|
|
889 |
/* now discard client data */
|
|
|
890 |
if ( face->generic.finalizer )
|
|
|
891 |
face->generic.finalizer( face );
|
|
|
892 |
|
|
|
893 |
/* discard charmaps */
|
|
|
894 |
destroy_charmaps( face, memory );
|
|
|
895 |
|
|
|
896 |
/* finalize format-specific stuff */
|
|
|
897 |
if ( clazz->done_face )
|
|
|
898 |
clazz->done_face( face );
|
|
|
899 |
|
|
|
900 |
/* close the stream for this face if needed */
|
|
|
901 |
FT_Stream_Free(
|
|
|
902 |
face->stream,
|
|
|
903 |
( face->face_flags & FT_FACE_FLAG_EXTERNAL_STREAM ) != 0 );
|
|
|
904 |
|
|
|
905 |
face->stream = 0;
|
|
|
906 |
|
|
|
907 |
/* get rid of it */
|
|
|
908 |
if ( face->internal )
|
|
|
909 |
{
|
|
|
910 |
FT_FREE( face->internal );
|
|
|
911 |
}
|
|
|
912 |
FT_FREE( face );
|
|
|
913 |
}
|
|
|
914 |
|
|
|
915 |
|
|
|
916 |
static void
|
|
|
917 |
Destroy_Driver( FT_Driver driver )
|
|
|
918 |
{
|
|
|
919 |
FT_List_Finalize( &driver->faces_list,
|
|
|
920 |
(FT_List_Destructor)destroy_face,
|
|
|
921 |
driver->root.memory,
|
|
|
922 |
driver );
|
|
|
923 |
|
|
|
924 |
/* check whether we need to drop the driver's glyph loader */
|
|
|
925 |
if ( FT_DRIVER_USES_OUTLINES( driver ) )
|
|
|
926 |
FT_GlyphLoader_Done( driver->glyph_loader );
|
|
|
927 |
}
|
|
|
928 |
|
|
|
929 |
|
|
|
930 |
/*************************************************************************/
|
|
|
931 |
/* */
|
|
|
932 |
/* <Function> */
|
|
|
933 |
/* find_unicode_charmap */
|
|
|
934 |
/* */
|
|
|
935 |
/* <Description> */
|
|
|
936 |
/* This function finds a Unicode charmap, if there is one. */
|
|
|
937 |
/* And if there is more than one, it tries to favour the more */
|
|
|
938 |
/* extensive one, i.e., one that supports UCS-4 against those which */
|
|
|
939 |
/* are limited to the BMP (said UCS-2 encoding.) */
|
|
|
940 |
/* */
|
|
|
941 |
/* This function is called from open_face() (just below), and also */
|
|
|
942 |
/* from FT_Select_Charmap( ..., FT_ENCODING_UNICODE ). */
|
|
|
943 |
/* */
|
|
|
944 |
static FT_Error
|
|
|
945 |
find_unicode_charmap( FT_Face face )
|
|
|
946 |
{
|
|
|
947 |
FT_CharMap* first;
|
|
|
948 |
FT_CharMap* cur;
|
|
|
949 |
|
|
|
950 |
|
|
|
951 |
/* caller should have already checked that `face' is valid */
|
|
|
952 |
FT_ASSERT( face );
|
|
|
953 |
|
|
|
954 |
first = face->charmaps;
|
|
|
955 |
|
|
|
956 |
if ( !first )
|
|
|
957 |
return FT_Err_Invalid_CharMap_Handle;
|
|
|
958 |
|
|
|
959 |
/*
|
|
|
960 |
* The original TrueType specification(s) only specified charmap
|
|
|
961 |
* formats that are capable of mapping 8 or 16 bit character codes to
|
|
|
962 |
* glyph indices.
|
|
|
963 |
*
|
|
|
964 |
* However, recent updates to the Apple and OpenType specifications
|
|
|
965 |
* introduced new formats that are capable of mapping 32-bit character
|
|
|
966 |
* codes as well. And these are already used on some fonts, mainly to
|
|
|
967 |
* map non-BMP Asian ideographs as defined in Unicode.
|
|
|
968 |
*
|
|
|
969 |
* For compatibility purposes, these fonts generally come with
|
|
|
970 |
* *several* Unicode charmaps:
|
|
|
971 |
*
|
|
|
972 |
* - One of them in the "old" 16-bit format, that cannot access
|
|
|
973 |
* all glyphs in the font.
|
|
|
974 |
*
|
|
|
975 |
* - Another one in the "new" 32-bit format, that can access all
|
|
|
976 |
* the glyphs.
|
|
|
977 |
*
|
|
|
978 |
* This function has been written to always favor a 32-bit charmap
|
|
|
979 |
* when found. Otherwise, a 16-bit one is returned when found.
|
|
|
980 |
*/
|
|
|
981 |
|
|
|
982 |
/* Since the `interesting' table, with IDs (3,10), is normally the */
|
|
|
983 |
/* last one, we loop backwards. This loses with type1 fonts with */
|
|
|
984 |
/* non-BMP characters (<.0001%), this wins with .ttf with non-BMP */
|
|
|
985 |
/* chars (.01% ?), and this is the same about 99.99% of the time! */
|
|
|
986 |
|
|
|
987 |
cur = first + face->num_charmaps; /* points after the last one */
|
|
|
988 |
|
|
|
989 |
for ( ; --cur >= first; )
|
|
|
990 |
{
|
|
|
991 |
if ( cur[0]->encoding == FT_ENCODING_UNICODE )
|
|
|
992 |
{
|
|
|
993 |
/* XXX If some new encodings to represent UCS-4 are added, */
|
|
|
994 |
/* they should be added here. */
|
|
|
995 |
if ( ( cur[0]->platform_id == TT_PLATFORM_MICROSOFT &&
|
|
|
996 |
cur[0]->encoding_id == TT_MS_ID_UCS_4 ) ||
|
|
|
997 |
( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE &&
|
|
|
998 |
cur[0]->encoding_id == TT_APPLE_ID_UNICODE_32 ) )
|
|
|
999 |
{
|
|
|
1000 |
#ifdef FT_MAX_CHARMAP_CACHEABLE
|
|
|
1001 |
if ( cur - first > FT_MAX_CHARMAP_CACHEABLE )
|
|
|
1002 |
{
|
|
|
1003 |
FT_ERROR(( "find_unicode_charmap: UCS-4 cmap is found "
|
|
|
1004 |
"at too late position (%d)\n", cur - first ));
|
|
|
1005 |
continue;
|
|
|
1006 |
}
|
|
|
1007 |
#endif
|
|
|
1008 |
face->charmap = cur[0];
|
|
|
1009 |
return FT_Err_Ok;
|
|
|
1010 |
}
|
|
|
1011 |
}
|
|
|
1012 |
}
|
|
|
1013 |
|
|
|
1014 |
/* We do not have any UCS-4 charmap. */
|
|
|
1015 |
/* Do the loop again and search for UCS-2 charmaps. */
|
|
|
1016 |
cur = first + face->num_charmaps;
|
|
|
1017 |
|
|
|
1018 |
for ( ; --cur >= first; )
|
|
|
1019 |
{
|
|
|
1020 |
if ( cur[0]->encoding == FT_ENCODING_UNICODE )
|
|
|
1021 |
{
|
|
|
1022 |
#ifdef FT_MAX_CHARMAP_CACHEABLE
|
|
|
1023 |
if ( cur - first > FT_MAX_CHARMAP_CACHEABLE )
|
|
|
1024 |
{
|
|
|
1025 |
FT_ERROR(( "find_unicode_charmap: UCS-2 cmap is found "
|
|
|
1026 |
"at too late position (%d)\n", cur - first ));
|
|
|
1027 |
continue;
|
|
|
1028 |
}
|
|
|
1029 |
#endif
|
|
|
1030 |
face->charmap = cur[0];
|
|
|
1031 |
return FT_Err_Ok;
|
|
|
1032 |
}
|
|
|
1033 |
}
|
|
|
1034 |
|
|
|
1035 |
return FT_Err_Invalid_CharMap_Handle;
|
|
|
1036 |
}
|
|
|
1037 |
|
|
|
1038 |
|
|
|
1039 |
/*************************************************************************/
|
|
|
1040 |
/* */
|
|
|
1041 |
/* <Function> */
|
|
|
1042 |
/* find_variant_selector_charmap */
|
|
|
1043 |
/* */
|
|
|
1044 |
/* <Description> */
|
|
|
1045 |
/* This function finds the variant selector charmap, if there is one. */
|
|
|
1046 |
/* There can only be one (platform=0, specific=5, format=14). */
|
|
|
1047 |
/* */
|
|
|
1048 |
static FT_CharMap
|
|
|
1049 |
find_variant_selector_charmap( FT_Face face )
|
|
|
1050 |
{
|
|
|
1051 |
FT_CharMap* first;
|
|
|
1052 |
FT_CharMap* end;
|
|
|
1053 |
FT_CharMap* cur;
|
|
|
1054 |
|
|
|
1055 |
|
|
|
1056 |
/* caller should have already checked that `face' is valid */
|
|
|
1057 |
FT_ASSERT( face );
|
|
|
1058 |
|
|
|
1059 |
first = face->charmaps;
|
|
|
1060 |
|
|
|
1061 |
if ( !first )
|
|
|
1062 |
return NULL;
|
|
|
1063 |
|
|
|
1064 |
end = first + face->num_charmaps; /* points after the last one */
|
|
|
1065 |
|
|
|
1066 |
for ( cur = first; cur < end; ++cur )
|
|
|
1067 |
{
|
|
|
1068 |
if ( cur[0]->platform_id == TT_PLATFORM_APPLE_UNICODE &&
|
|
|
1069 |
cur[0]->encoding_id == TT_APPLE_ID_VARIANT_SELECTOR &&
|
|
|
1070 |
FT_Get_CMap_Format( cur[0] ) == 14 )
|
|
|
1071 |
{
|
|
|
1072 |
#ifdef FT_MAX_CHARMAP_CACHEABLE
|
|
|
1073 |
if ( cur - first > FT_MAX_CHARMAP_CACHEABLE )
|
|
|
1074 |
{
|
|
|
1075 |
FT_ERROR(( "find_unicode_charmap: UVS cmap is found "
|
|
|
1076 |
"at too late position (%d)\n", cur - first ));
|
|
|
1077 |
continue;
|
|
|
1078 |
}
|
|
|
1079 |
#endif
|
|
|
1080 |
return cur[0];
|
|
|
1081 |
}
|
|
|
1082 |
}
|
|
|
1083 |
|
|
|
1084 |
return NULL;
|
|
|
1085 |
}
|
|
|
1086 |
|
|
|
1087 |
|
|
|
1088 |
/*************************************************************************/
|
|
|
1089 |
/* */
|
|
|
1090 |
/* <Function> */
|
|
|
1091 |
/* open_face */
|
|
|
1092 |
/* */
|
|
|
1093 |
/* <Description> */
|
|
|
1094 |
/* This function does some work for FT_Open_Face(). */
|
|
|
1095 |
/* */
|
|
|
1096 |
static FT_Error
|
|
|
1097 |
open_face( FT_Driver driver,
|
|
|
1098 |
FT_Stream stream,
|
|
|
1099 |
FT_Long face_index,
|
|
|
1100 |
FT_Int num_params,
|
|
|
1101 |
FT_Parameter* params,
|
|
|
1102 |
FT_Face *aface )
|
|
|
1103 |
{
|
|
|
1104 |
FT_Memory memory;
|
|
|
1105 |
FT_Driver_Class clazz;
|
|
|
1106 |
FT_Face face = 0;
|
|
|
1107 |
FT_Error error, error2;
|
|
|
1108 |
FT_Face_Internal internal = NULL;
|
|
|
1109 |
|
|
|
1110 |
|
|
|
1111 |
clazz = driver->clazz;
|
|
|
1112 |
memory = driver->root.memory;
|
|
|
1113 |
|
|
|
1114 |
/* allocate the face object and perform basic initialization */
|
|
|
1115 |
if ( FT_ALLOC( face, clazz->face_object_size ) )
|
|
|
1116 |
goto Fail;
|
|
|
1117 |
|
|
|
1118 |
if ( FT_NEW( internal ) )
|
|
|
1119 |
goto Fail;
|
|
|
1120 |
|
|
|
1121 |
face->internal = internal;
|
|
|
1122 |
|
|
|
1123 |
face->driver = driver;
|
|
|
1124 |
face->memory = memory;
|
|
|
1125 |
face->stream = stream;
|
|
|
1126 |
|
|
|
1127 |
#ifdef FT_CONFIG_OPTION_INCREMENTAL
|
|
|
1128 |
{
|
|
|
1129 |
int i;
|
|
|
1130 |
|
|
|
1131 |
|
|
|
1132 |
face->internal->incremental_interface = 0;
|
|
|
1133 |
for ( i = 0; i < num_params && !face->internal->incremental_interface;
|
|
|
1134 |
i++ )
|
|
|
1135 |
if ( params[i].tag == FT_PARAM_TAG_INCREMENTAL )
|
|
|
1136 |
face->internal->incremental_interface =
|
|
|
1137 |
(FT_Incremental_Interface)params[i].data;
|
|
|
1138 |
}
|
|
|
1139 |
#endif
|
|
|
1140 |
|
|
|
1141 |
if ( clazz->init_face )
|
|
|
1142 |
error = clazz->init_face( stream,
|
|
|
1143 |
face,
|
|
|
1144 |
(FT_Int)face_index,
|
|
|
1145 |
num_params,
|
|
|
1146 |
params );
|
|
|
1147 |
if ( error )
|
|
|
1148 |
goto Fail;
|
|
|
1149 |
|
|
|
1150 |
/* select Unicode charmap by default */
|
|
|
1151 |
error2 = find_unicode_charmap( face );
|
|
|
1152 |
|
|
|
1153 |
/* if no Unicode charmap can be found, FT_Err_Invalid_CharMap_Handle */
|
|
|
1154 |
/* is returned. */
|
|
|
1155 |
|
|
|
1156 |
/* no error should happen, but we want to play safe */
|
|
|
1157 |
if ( error2 && error2 != FT_Err_Invalid_CharMap_Handle )
|
|
|
1158 |
{
|
|
|
1159 |
error = error2;
|
|
|
1160 |
goto Fail;
|
|
|
1161 |
}
|
|
|
1162 |
|
|
|
1163 |
*aface = face;
|
|
|
1164 |
|
|
|
1165 |
Fail:
|
|
|
1166 |
if ( error )
|
|
|
1167 |
{
|
|
|
1168 |
destroy_charmaps( face, memory );
|
|
|
1169 |
if ( clazz->done_face )
|
|
|
1170 |
clazz->done_face( face );
|
|
|
1171 |
FT_FREE( internal );
|
|
|
1172 |
FT_FREE( face );
|
|
|
1173 |
*aface = 0;
|
|
|
1174 |
}
|
|
|
1175 |
|
|
|
1176 |
return error;
|
|
|
1177 |
}
|
|
|
1178 |
|
|
|
1179 |
|
|
|
1180 |
/* there's a Mac-specific extended implementation of FT_New_Face() */
|
|
|
1181 |
/* in src/base/ftmac.c */
|
|
|
1182 |
|
|
|
1183 |
#if !defined( FT_MACINTOSH ) || defined( DARWIN_NO_CARBON )
|
|
|
1184 |
|
|
|
1185 |
/* documentation is in freetype.h */
|
|
|
1186 |
|
|
|
1187 |
FT_EXPORT_DEF( FT_Error )
|
|
|
1188 |
FT_New_Face( FT_Library library,
|
|
|
1189 |
const char* pathname,
|
|
|
1190 |
FT_Long face_index,
|
|
|
1191 |
FT_Face *aface )
|
|
|
1192 |
{
|
|
|
1193 |
FT_Open_Args args;
|
|
|
1194 |
|
|
|
1195 |
|
|
|
1196 |
/* test for valid `library' and `aface' delayed to FT_Open_Face() */
|
|
|
1197 |
if ( !pathname )
|
|
|
1198 |
return FT_Err_Invalid_Argument;
|
|
|
1199 |
|
|
|
1200 |
args.flags = FT_OPEN_PATHNAME;
|
|
|
1201 |
args.pathname = (char*)pathname;
|
|
|
1202 |
args.stream = NULL;
|
|
|
1203 |
|
|
|
1204 |
return FT_Open_Face( library, &args, face_index, aface );
|
|
|
1205 |
}
|
|
|
1206 |
|
|
|
1207 |
#endif /* defined( FT_MACINTOSH ) && !defined( DARWIN_NO_CARBON ) */
|
|
|
1208 |
|
|
|
1209 |
|
|
|
1210 |
/* documentation is in freetype.h */
|
|
|
1211 |
|
|
|
1212 |
FT_EXPORT_DEF( FT_Error )
|
|
|
1213 |
FT_New_Memory_Face( FT_Library library,
|
|
|
1214 |
const FT_Byte* file_base,
|
|
|
1215 |
FT_Long file_size,
|
|
|
1216 |
FT_Long face_index,
|
|
|
1217 |
FT_Face *aface )
|
|
|
1218 |
{
|
|
|
1219 |
FT_Open_Args args;
|
|
|
1220 |
|
|
|
1221 |
|
|
|
1222 |
/* test for valid `library' and `face' delayed to FT_Open_Face() */
|
|
|
1223 |
if ( !file_base )
|
|
|
1224 |
return FT_Err_Invalid_Argument;
|
|
|
1225 |
|
|
|
1226 |
args.flags = FT_OPEN_MEMORY;
|
|
|
1227 |
args.memory_base = file_base;
|
|
|
1228 |
args.memory_size = file_size;
|
|
|
1229 |
args.stream = NULL;
|
|
|
1230 |
|
|
|
1231 |
return FT_Open_Face( library, &args, face_index, aface );
|
|
|
1232 |
}
|
|
|
1233 |
|
|
|
1234 |
|
|
|
1235 |
#ifdef FT_CONFIG_OPTION_MAC_FONTS
|
|
|
1236 |
|
|
|
1237 |
/* The behavior here is very similar to that in base/ftmac.c, but it */
|
|
|
1238 |
/* is designed to work on non-mac systems, so no mac specific calls. */
|
|
|
1239 |
/* */
|
|
|
1240 |
/* We look at the file and determine if it is a mac dfont file or a mac */
|
|
|
1241 |
/* resource file, or a macbinary file containing a mac resource file. */
|
|
|
1242 |
/* */
|
|
|
1243 |
/* Unlike ftmac I'm not going to look at a `FOND'. I don't really see */
|
|
|
1244 |
/* the point, especially since there may be multiple `FOND' resources. */
|
|
|
1245 |
/* Instead I'll just look for `sfnt' and `POST' resources, ordered as */
|
|
|
1246 |
/* they occur in the file. */
|
|
|
1247 |
/* */
|
|
|
1248 |
/* Note that multiple `POST' resources do not mean multiple postscript */
|
|
|
1249 |
/* fonts; they all get jammed together to make what is essentially a */
|
|
|
1250 |
/* pfb file. */
|
|
|
1251 |
/* */
|
|
|
1252 |
/* We aren't interested in `NFNT' or `FONT' bitmap resources. */
|
|
|
1253 |
/* */
|
|
|
1254 |
/* As soon as we get an `sfnt' load it into memory and pass it off to */
|
|
|
1255 |
/* FT_Open_Face. */
|
|
|
1256 |
/* */
|
|
|
1257 |
/* If we have a (set of) `POST' resources, massage them into a (memory) */
|
|
|
1258 |
/* pfb file and pass that to FT_Open_Face. (As with ftmac.c I'm not */
|
|
|
1259 |
/* going to try to save the kerning info. After all that lives in the */
|
|
|
1260 |
/* `FOND' which isn't in the file containing the `POST' resources so */
|
|
|
1261 |
/* we don't really have access to it. */
|
|
|
1262 |
|
|
|
1263 |
|
|
|
1264 |
/* Finalizer for a memory stream; gets called by FT_Done_Face(). */
|
|
|
1265 |
/* It frees the memory it uses. */
|
|
|
1266 |
/* From ftmac.c. */
|
|
|
1267 |
static void
|
|
|
1268 |
memory_stream_close( FT_Stream stream )
|
|
|
1269 |
{
|
|
|
1270 |
FT_Memory memory = stream->memory;
|
|
|
1271 |
|
|
|
1272 |
|
|
|
1273 |
FT_FREE( stream->base );
|
|
|
1274 |
|
|
|
1275 |
stream->size = 0;
|
|
|
1276 |
stream->base = 0;
|
|
|
1277 |
stream->close = 0;
|
|
|
1278 |
}
|
|
|
1279 |
|
|
|
1280 |
|
|
|
1281 |
/* Create a new memory stream from a buffer and a size. */
|
|
|
1282 |
/* From ftmac.c. */
|
|
|
1283 |
static FT_Error
|
|
|
1284 |
new_memory_stream( FT_Library library,
|
|
|
1285 |
FT_Byte* base,
|
|
|
1286 |
FT_ULong size,
|
|
|
1287 |
FT_Stream_CloseFunc close,
|
|
|
1288 |
FT_Stream *astream )
|
|
|
1289 |
{
|
|
|
1290 |
FT_Error error;
|
|
|
1291 |
FT_Memory memory;
|
|
|
1292 |
FT_Stream stream;
|
|
|
1293 |
|
|
|
1294 |
|
|
|
1295 |
if ( !library )
|
|
|
1296 |
return FT_Err_Invalid_Library_Handle;
|
|
|
1297 |
|
|
|
1298 |
if ( !base )
|
|
|
1299 |
return FT_Err_Invalid_Argument;
|
|
|
1300 |
|
|
|
1301 |
*astream = 0;
|
|
|
1302 |
memory = library->memory;
|
|
|
1303 |
if ( FT_NEW( stream ) )
|
|
|
1304 |
goto Exit;
|
|
|
1305 |
|
|
|
1306 |
FT_Stream_OpenMemory( stream, base, size );
|
|
|
1307 |
|
|
|
1308 |
stream->close = close;
|
|
|
1309 |
|
|
|
1310 |
*astream = stream;
|
|
|
1311 |
|
|
|
1312 |
Exit:
|
|
|
1313 |
return error;
|
|
|
1314 |
}
|
|
|
1315 |
|
|
|
1316 |
|
|
|
1317 |
/* Create a new FT_Face given a buffer and a driver name. */
|
|
|
1318 |
/* from ftmac.c */
|
|
|
1319 |
FT_LOCAL_DEF( FT_Error )
|
|
|
1320 |
open_face_from_buffer( FT_Library library,
|
|
|
1321 |
FT_Byte* base,
|
|
|
1322 |
FT_ULong size,
|
|
|
1323 |
FT_Long face_index,
|
|
|
1324 |
const char* driver_name,
|
|
|
1325 |
FT_Face *aface )
|
|
|
1326 |
{
|
|
|
1327 |
FT_Open_Args args;
|
|
|
1328 |
FT_Error error;
|
|
|
1329 |
FT_Stream stream = NULL;
|
|
|
1330 |
FT_Memory memory = library->memory;
|
|
|
1331 |
|
|
|
1332 |
|
|
|
1333 |
error = new_memory_stream( library,
|
|
|
1334 |
base,
|
|
|
1335 |
size,
|
|
|
1336 |
memory_stream_close,
|
|
|
1337 |
&stream );
|
|
|
1338 |
if ( error )
|
|
|
1339 |
{
|
|
|
1340 |
FT_FREE( base );
|
|
|
1341 |
return error;
|
|
|
1342 |
}
|
|
|
1343 |
|
|
|
1344 |
args.flags = FT_OPEN_STREAM;
|
|
|
1345 |
args.stream = stream;
|
|
|
1346 |
if ( driver_name )
|
|
|
1347 |
{
|
|
|
1348 |
args.flags = args.flags | FT_OPEN_DRIVER;
|
|
|
1349 |
args.driver = FT_Get_Module( library, driver_name );
|
|
|
1350 |
}
|
|
|
1351 |
|
|
|
1352 |
#ifdef FT_MACINTOSH
|
|
|
1353 |
/* At this point, face_index has served its purpose; */
|
|
|
1354 |
/* whoever calls this function has already used it to */
|
|
|
1355 |
/* locate the correct font data. We should not propagate */
|
|
|
1356 |
/* this index to FT_Open_Face() (unless it is negative). */
|
|
|
1357 |
|
|
|
1358 |
if ( face_index > 0 )
|
|
|
1359 |
face_index = 0;
|
|
|
1360 |
#endif
|
|
|
1361 |
|
|
|
1362 |
error = FT_Open_Face( library, &args, face_index, aface );
|
|
|
1363 |
|
|
|
1364 |
if ( error == FT_Err_Ok )
|
|
|
1365 |
(*aface)->face_flags &= ~FT_FACE_FLAG_EXTERNAL_STREAM;
|
|
|
1366 |
else
|
|
|
1367 |
#ifdef FT_MACINTOSH
|
|
|
1368 |
FT_Stream_Free( stream, 0 );
|
|
|
1369 |
#else
|
|
|
1370 |
{
|
|
|
1371 |
FT_Stream_Close( stream );
|
|
|
1372 |
FT_FREE( stream );
|
|
|
1373 |
}
|
|
|
1374 |
#endif
|
|
|
1375 |
|
|
|
1376 |
return error;
|
|
|
1377 |
}
|
|
|
1378 |
|
|
|
1379 |
|
|
|
1380 |
/* Look up `TYP1' or `CID ' table from sfnt table directory. */
|
|
|
1381 |
/* `offset' and `length' must exclude the binary header in tables. */
|
|
|
1382 |
|
|
|
1383 |
/* Type 1 and CID-keyed font drivers should recognize sfnt-wrapped */
|
|
|
1384 |
/* format too. Here, since we can't expect that the TrueType font */
|
|
|
1385 |
/* driver is loaded unconditially, we must parse the font by */
|
|
|
1386 |
/* ourselves. We are only interested in the name of the table and */
|
|
|
1387 |
/* the offset. */
|
|
|
1388 |
|
|
|
1389 |
static FT_Error
|
|
|
1390 |
ft_lookup_PS_in_sfnt_stream( FT_Stream stream,
|
|
|
1391 |
FT_Long face_index,
|
|
|
1392 |
FT_ULong* offset,
|
|
|
1393 |
FT_ULong* length,
|
|
|
1394 |
FT_Bool* is_sfnt_cid )
|
|
|
1395 |
{
|
|
|
1396 |
FT_Error error;
|
|
|
1397 |
FT_UShort numTables;
|
|
|
1398 |
FT_Long pstable_index;
|
|
|
1399 |
FT_ULong tag;
|
|
|
1400 |
int i;
|
|
|
1401 |
|
|
|
1402 |
|
|
|
1403 |
*offset = 0;
|
|
|
1404 |
*length = 0;
|
|
|
1405 |
*is_sfnt_cid = FALSE;
|
|
|
1406 |
|
|
|
1407 |
/* TODO: support for sfnt-wrapped PS/CID in TTC format */
|
|
|
1408 |
|
|
|
1409 |
/* version check for 'typ1' (should be ignored?) */
|
|
|
1410 |
if ( FT_READ_ULONG( tag ) )
|
|
|
1411 |
return error;
|
|
|
1412 |
if ( tag != TTAG_typ1 )
|
|
|
1413 |
return FT_Err_Unknown_File_Format;
|
|
|
1414 |
|
|
|
1415 |
if ( FT_READ_USHORT( numTables ) )
|
|
|
1416 |
return error;
|
|
|
1417 |
if ( FT_STREAM_SKIP( 2 * 3 ) ) /* skip binary search header */
|
|
|
1418 |
return error;
|
|
|
1419 |
|
|
|
1420 |
pstable_index = -1;
|
|
|
1421 |
*is_sfnt_cid = FALSE;
|
|
|
1422 |
|
|
|
1423 |
for ( i = 0; i < numTables; i++ )
|
|
|
1424 |
{
|
|
|
1425 |
if ( FT_READ_ULONG( tag ) || FT_STREAM_SKIP( 4 ) ||
|
|
|
1426 |
FT_READ_ULONG( *offset ) || FT_READ_ULONG( *length ) )
|
|
|
1427 |
return error;
|
|
|
1428 |
|
|
|
1429 |
if ( tag == TTAG_CID )
|
|
|
1430 |
{
|
|
|
1431 |
pstable_index++;
|
|
|
1432 |
*offset += 22;
|
|
|
1433 |
*length -= 22;
|
|
|
1434 |
*is_sfnt_cid = TRUE;
|
|
|
1435 |
if ( face_index < 0 )
|
|
|
1436 |
return FT_Err_Ok;
|
|
|
1437 |
}
|
|
|
1438 |
else if ( tag == TTAG_TYP1 )
|
|
|
1439 |
{
|
|
|
1440 |
pstable_index++;
|
|
|
1441 |
*offset += 24;
|
|
|
1442 |
*length -= 24;
|
|
|
1443 |
*is_sfnt_cid = FALSE;
|
|
|
1444 |
if ( face_index < 0 )
|
|
|
1445 |
return FT_Err_Ok;
|
|
|
1446 |
}
|
|
|
1447 |
if ( face_index >= 0 && pstable_index == face_index )
|
|
|
1448 |
return FT_Err_Ok;
|
|
|
1449 |
}
|
|
|
1450 |
return FT_Err_Table_Missing;
|
|
|
1451 |
}
|
|
|
1452 |
|
|
|
1453 |
|
|
|
1454 |
FT_LOCAL_DEF( FT_Error )
|
|
|
1455 |
open_face_PS_from_sfnt_stream( FT_Library library,
|
|
|
1456 |
FT_Stream stream,
|
|
|
1457 |
FT_Long face_index,
|
|
|
1458 |
FT_Int num_params,
|
|
|
1459 |
FT_Parameter *params,
|
|
|
1460 |
FT_Face *aface )
|
|
|
1461 |
{
|
|
|
1462 |
FT_Error error;
|
|
|
1463 |
FT_Memory memory = library->memory;
|
|
|
1464 |
FT_ULong offset, length;
|
|
|
1465 |
FT_Long pos;
|
|
|
1466 |
FT_Bool is_sfnt_cid;
|
|
|
1467 |
FT_Byte* sfnt_ps;
|
|
|
1468 |
|
|
|
1469 |
FT_UNUSED( num_params );
|
|
|
1470 |
FT_UNUSED( params );
|
|
|
1471 |
|
|
|
1472 |
|
|
|
1473 |
pos = FT_Stream_Pos( stream );
|
|
|
1474 |
|
|
|
1475 |
error = ft_lookup_PS_in_sfnt_stream( stream,
|
|
|
1476 |
face_index,
|
|
|
1477 |
&offset,
|
|
|
1478 |
&length,
|
|
|
1479 |
&is_sfnt_cid );
|
|
|
1480 |
if ( error )
|
|
|
1481 |
goto Exit;
|
|
|
1482 |
|
|
|
1483 |
if ( FT_Stream_Seek( stream, pos + offset ) )
|
|
|
1484 |
goto Exit;
|
|
|
1485 |
|
|
|
1486 |
if ( FT_ALLOC( sfnt_ps, (FT_Long)length ) )
|
|
|
1487 |
goto Exit;
|
|
|
1488 |
|
|
|
1489 |
error = FT_Stream_Read( stream, (FT_Byte *)sfnt_ps, length );
|
|
|
1490 |
if ( error )
|
|
|
1491 |
goto Exit;
|
|
|
1492 |
|
|
|
1493 |
error = open_face_from_buffer( library,
|
|
|
1494 |
sfnt_ps,
|
|
|
1495 |
length,
|
|
|
1496 |
face_index < 0 ? face_index : 0,
|
|
|
1497 |
is_sfnt_cid ? "cid" : "type1",
|
|
|
1498 |
aface );
|
|
|
1499 |
Exit:
|
|
|
1500 |
{
|
|
|
1501 |
FT_Error error1;
|
|
|
1502 |
|
|
|
1503 |
|
|
|
1504 |
if ( error == FT_Err_Unknown_File_Format )
|
|
|
1505 |
{
|
|
|
1506 |
error1 = FT_Stream_Seek( stream, pos );
|
|
|
1507 |
if ( error1 )
|
|
|
1508 |
return error1;
|
|
|
1509 |
}
|
|
|
1510 |
|
|
|
1511 |
return error;
|
|
|
1512 |
}
|
|
|
1513 |
}
|
|
|
1514 |
|
|
|
1515 |
|
|
|
1516 |
#if !defined( FT_MACINTOSH ) || defined( DARWIN_NO_CARBON )
|
|
|
1517 |
|
|
|
1518 |
/* The resource header says we've got resource_cnt `POST' (type1) */
|
|
|
1519 |
/* resources in this file. They all need to be coalesced into */
|
|
|
1520 |
/* one lump which gets passed on to the type1 driver. */
|
|
|
1521 |
/* Here can be only one PostScript font in a file so face_index */
|
|
|
1522 |
/* must be 0 (or -1). */
|
|
|
1523 |
/* */
|
|
|
1524 |
static FT_Error
|
|
|
1525 |
Mac_Read_POST_Resource( FT_Library library,
|
|
|
1526 |
FT_Stream stream,
|
|
|
1527 |
FT_Long *offsets,
|
|
|
1528 |
FT_Long resource_cnt,
|
|
|
1529 |
FT_Long face_index,
|
|
|
1530 |
FT_Face *aface )
|
|
|
1531 |
{
|
|
|
1532 |
FT_Error error = FT_Err_Cannot_Open_Resource;
|
|
|
1533 |
FT_Memory memory = library->memory;
|
|
|
1534 |
FT_Byte* pfb_data;
|
|
|
1535 |
int i, type, flags;
|
|
|
1536 |
FT_Long len;
|
|
|
1537 |
FT_Long pfb_len, pfb_pos, pfb_lenpos;
|
|
|
1538 |
FT_Long rlen, temp;
|
|
|
1539 |
|
|
|
1540 |
|
|
|
1541 |
if ( face_index == -1 )
|
|
|
1542 |
face_index = 0;
|
|
|
1543 |
if ( face_index != 0 )
|
|
|
1544 |
return error;
|
|
|
1545 |
|
|
|
1546 |
/* Find the length of all the POST resources, concatenated. Assume */
|
|
|
1547 |
/* worst case (each resource in its own section). */
|
|
|
1548 |
pfb_len = 0;
|
|
|
1549 |
for ( i = 0; i < resource_cnt; ++i )
|
|
|
1550 |
{
|
|
|
1551 |
error = FT_Stream_Seek( stream, offsets[i] );
|
|
|
1552 |
if ( error )
|
|
|
1553 |
goto Exit;
|
|
|
1554 |
if ( FT_READ_LONG( temp ) )
|
|
|
1555 |
goto Exit;
|
|
|
1556 |
pfb_len += temp + 6;
|
|
|
1557 |
}
|
|
|
1558 |
|
|
|
1559 |
if ( FT_ALLOC( pfb_data, (FT_Long)pfb_len + 2 ) )
|
|
|
1560 |
goto Exit;
|
|
|
1561 |
|
|
|
1562 |
pfb_data[0] = 0x80;
|
|
|
1563 |
pfb_data[1] = 1; /* Ascii section */
|
|
|
1564 |
pfb_data[2] = 0; /* 4-byte length, fill in later */
|
|
|
1565 |
pfb_data[3] = 0;
|
|
|
1566 |
pfb_data[4] = 0;
|
|
|
1567 |
pfb_data[5] = 0;
|
|
|
1568 |
pfb_pos = 6;
|
|
|
1569 |
pfb_lenpos = 2;
|
|
|
1570 |
|
|
|
1571 |
len = 0;
|
|
|
1572 |
type = 1;
|
|
|
1573 |
for ( i = 0; i < resource_cnt; ++i )
|
|
|
1574 |
{
|
|
|
1575 |
error = FT_Stream_Seek( stream, offsets[i] );
|
|
|
1576 |
if ( error )
|
|
|
1577 |
goto Exit2;
|
|
|
1578 |
if ( FT_READ_LONG( rlen ) )
|
|
|
1579 |
goto Exit;
|
|
|
1580 |
if ( FT_READ_USHORT( flags ) )
|
|
|
1581 |
goto Exit;
|
|
|
1582 |
FT_TRACE3(( "POST fragment[%d]: offsets=0x%08x, rlen=0x%08x, flags=0x%04x\n",
|
|
|
1583 |
i, offsets[i], rlen, flags ));
|
|
|
1584 |
|
|
|
1585 |
/* postpone the check of rlen longer than buffer until FT_Stream_Read() */
|
|
|
1586 |
if ( ( flags >> 8 ) == 0 ) /* Comment, should not be loaded */
|
|
|
1587 |
continue;
|
|
|
1588 |
|
|
|
1589 |
/* the flags are part of the resource, so rlen >= 2. */
|
|
|
1590 |
/* but some fonts declare rlen = 0 for empty fragment */
|
|
|
1591 |
if ( rlen > 2 )
|
|
|
1592 |
rlen -= 2;
|
|
|
1593 |
else
|
|
|
1594 |
rlen = 0;
|
|
|
1595 |
|
|
|
1596 |
if ( ( flags >> 8 ) == type )
|
|
|
1597 |
len += rlen;
|
|
|
1598 |
else
|
|
|
1599 |
{
|
|
|
1600 |
if ( pfb_lenpos + 3 > pfb_len + 2 )
|
|
|
1601 |
goto Exit2;
|
|
|
1602 |
pfb_data[pfb_lenpos ] = (FT_Byte)( len );
|
|
|
1603 |
pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 );
|
|
|
1604 |
pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 );
|
|
|
1605 |
pfb_data[pfb_lenpos + 3] = (FT_Byte)( len >> 24 );
|
|
|
1606 |
|
|
|
1607 |
if ( ( flags >> 8 ) == 5 ) /* End of font mark */
|
|
|
1608 |
break;
|
|
|
1609 |
|
|
|
1610 |
if ( pfb_pos + 6 > pfb_len + 2 )
|
|
|
1611 |
goto Exit2;
|
|
|
1612 |
pfb_data[pfb_pos++] = 0x80;
|
|
|
1613 |
|
|
|
1614 |
type = flags >> 8;
|
|
|
1615 |
len = rlen;
|
|
|
1616 |
|
|
|
1617 |
pfb_data[pfb_pos++] = (FT_Byte)type;
|
|
|
1618 |
pfb_lenpos = pfb_pos;
|
|
|
1619 |
pfb_data[pfb_pos++] = 0; /* 4-byte length, fill in later */
|
|
|
1620 |
pfb_data[pfb_pos++] = 0;
|
|
|
1621 |
pfb_data[pfb_pos++] = 0;
|
|
|
1622 |
pfb_data[pfb_pos++] = 0;
|
|
|
1623 |
}
|
|
|
1624 |
|
|
|
1625 |
error = FT_Err_Cannot_Open_Resource;
|
|
|
1626 |
if ( pfb_pos > pfb_len || pfb_pos + rlen > pfb_len )
|
|
|
1627 |
goto Exit2;
|
|
|
1628 |
|
|
|
1629 |
error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen );
|
|
|
1630 |
if ( error )
|
|
|
1631 |
goto Exit2;
|
|
|
1632 |
pfb_pos += rlen;
|
|
|
1633 |
}
|
|
|
1634 |
|
|
|
1635 |
if ( pfb_pos + 2 > pfb_len + 2 )
|
|
|
1636 |
goto Exit2;
|
|
|
1637 |
pfb_data[pfb_pos++] = 0x80;
|
|
|
1638 |
pfb_data[pfb_pos++] = 3;
|
|
|
1639 |
|
|
|
1640 |
if ( pfb_lenpos + 3 > pfb_len + 2 )
|
|
|
1641 |
goto Exit2;
|
|
|
1642 |
pfb_data[pfb_lenpos ] = (FT_Byte)( len );
|
|
|
1643 |
pfb_data[pfb_lenpos + 1] = (FT_Byte)( len >> 8 );
|
|
|
1644 |
pfb_data[pfb_lenpos + 2] = (FT_Byte)( len >> 16 );
|
|
|
1645 |
pfb_data[pfb_lenpos + 3] = (FT_Byte)( len >> 24 );
|
|
|
1646 |
|
|
|
1647 |
return open_face_from_buffer( library,
|
|
|
1648 |
pfb_data,
|
|
|
1649 |
pfb_pos,
|
|
|
1650 |
face_index,
|
|
|
1651 |
"type1",
|
|
|
1652 |
aface );
|
|
|
1653 |
|
|
|
1654 |
Exit2:
|
|
|
1655 |
FT_FREE( pfb_data );
|
|
|
1656 |
|
|
|
1657 |
Exit:
|
|
|
1658 |
return error;
|
|
|
1659 |
}
|
|
|
1660 |
|
|
|
1661 |
|
|
|
1662 |
/* The resource header says we've got resource_cnt `sfnt' */
|
|
|
1663 |
/* (TrueType/OpenType) resources in this file. Look through */
|
|
|
1664 |
/* them for the one indicated by face_index, load it into mem, */
|
|
|
1665 |
/* pass it on the the truetype driver and return it. */
|
|
|
1666 |
/* */
|
|
|
1667 |
static FT_Error
|
|
|
1668 |
Mac_Read_sfnt_Resource( FT_Library library,
|
|
|
1669 |
FT_Stream stream,
|
|
|
1670 |
FT_Long *offsets,
|
|
|
1671 |
FT_Long resource_cnt,
|
|
|
1672 |
FT_Long face_index,
|
|
|
1673 |
FT_Face *aface )
|
|
|
1674 |
{
|
|
|
1675 |
FT_Memory memory = library->memory;
|
|
|
1676 |
FT_Byte* sfnt_data;
|
|
|
1677 |
FT_Error error;
|
|
|
1678 |
FT_Long flag_offset;
|
|
|
1679 |
FT_Long rlen;
|
|
|
1680 |
int is_cff;
|
|
|
1681 |
FT_Long face_index_in_resource = 0;
|
|
|
1682 |
|
|
|
1683 |
|
|
|
1684 |
if ( face_index == -1 )
|
|
|
1685 |
face_index = 0;
|
|
|
1686 |
if ( face_index >= resource_cnt )
|
|
|
1687 |
return FT_Err_Cannot_Open_Resource;
|
|
|
1688 |
|
|
|
1689 |
flag_offset = offsets[face_index];
|
|
|
1690 |
error = FT_Stream_Seek( stream, flag_offset );
|
|
|
1691 |
if ( error )
|
|
|
1692 |
goto Exit;
|
|
|
1693 |
|
|
|
1694 |
if ( FT_READ_LONG( rlen ) )
|
|
|
1695 |
goto Exit;
|
|
|
1696 |
if ( rlen == -1 )
|
|
|
1697 |
return FT_Err_Cannot_Open_Resource;
|
|
|
1698 |
|
|
|
1699 |
error = open_face_PS_from_sfnt_stream( library,
|
|
|
1700 |
stream,
|
|
|
1701 |
face_index,
|
|
|
1702 |
0, NULL,
|
|
|
1703 |
aface );
|
|
|
1704 |
if ( !error )
|
|
|
1705 |
goto Exit;
|
|
|
1706 |
|
|
|
1707 |
/* rewind sfnt stream before open_face_PS_from_sfnt_stream() */
|
|
|
1708 |
if ( FT_Stream_Seek( stream, flag_offset + 4 ) )
|
|
|
1709 |
goto Exit;
|
|
|
1710 |
|
|
|
1711 |
if ( FT_ALLOC( sfnt_data, (FT_Long)rlen ) )
|
|
|
1712 |
return error;
|
|
|
1713 |
error = FT_Stream_Read( stream, (FT_Byte *)sfnt_data, rlen );
|
|
|
1714 |
if ( error )
|
|
|
1715 |
goto Exit;
|
|
|
1716 |
|
|
|
1717 |
is_cff = rlen > 4 && !ft_memcmp( sfnt_data, "OTTO", 4 );
|
|
|
1718 |
error = open_face_from_buffer( library,
|
|
|
1719 |
sfnt_data,
|
|
|
1720 |
rlen,
|
|
|
1721 |
face_index_in_resource,
|
|
|
1722 |
is_cff ? "cff" : "truetype",
|
|
|
1723 |
aface );
|
|
|
1724 |
|
|
|
1725 |
Exit:
|
|
|
1726 |
return error;
|
|
|
1727 |
}
|
|
|
1728 |
|
|
|
1729 |
|
|
|
1730 |
/* Check for a valid resource fork header, or a valid dfont */
|
|
|
1731 |
/* header. In a resource fork the first 16 bytes are repeated */
|
|
|
1732 |
/* at the location specified by bytes 4-7. In a dfont bytes */
|
|
|
1733 |
/* 4-7 point to 16 bytes of zeroes instead. */
|
|
|
1734 |
/* */
|
|
|
1735 |
static FT_Error
|
|
|
1736 |
IsMacResource( FT_Library library,
|
|
|
1737 |
FT_Stream stream,
|
|
|
1738 |
FT_Long resource_offset,
|
|
|
1739 |
FT_Long face_index,
|
|
|
1740 |
FT_Face *aface )
|
|
|
1741 |
{
|
|
|
1742 |
FT_Memory memory = library->memory;
|
|
|
1743 |
FT_Error error;
|
|
|
1744 |
FT_Long map_offset, rdara_pos;
|
|
|
1745 |
FT_Long *data_offsets;
|
|
|
1746 |
FT_Long count;
|
|
|
1747 |
|
|
|
1748 |
|
|
|
1749 |
error = FT_Raccess_Get_HeaderInfo( library, stream, resource_offset,
|
|
|
1750 |
&map_offset, &rdara_pos );
|
|
|
1751 |
if ( error )
|
|
|
1752 |
return error;
|
|
|
1753 |
|
|
|
1754 |
error = FT_Raccess_Get_DataOffsets( library, stream,
|
|
|
1755 |
map_offset, rdara_pos,
|
|
|
1756 |
TTAG_POST,
|
|
|
1757 |
&data_offsets, &count );
|
|
|
1758 |
if ( !error )
|
|
|
1759 |
{
|
|
|
1760 |
error = Mac_Read_POST_Resource( library, stream, data_offsets, count,
|
|
|
1761 |
face_index, aface );
|
|
|
1762 |
FT_FREE( data_offsets );
|
|
|
1763 |
/* POST exists in an LWFN providing a single face */
|
|
|
1764 |
if ( !error )
|
|
|
1765 |
(*aface)->num_faces = 1;
|
|
|
1766 |
return error;
|
|
|
1767 |
}
|
|
|
1768 |
|
|
|
1769 |
error = FT_Raccess_Get_DataOffsets( library, stream,
|
|
|
1770 |
map_offset, rdara_pos,
|
|
|
1771 |
TTAG_sfnt,
|
|
|
1772 |
&data_offsets, &count );
|
|
|
1773 |
if ( !error )
|
|
|
1774 |
{
|
|
|
1775 |
FT_Long face_index_internal = face_index % count;
|
|
|
1776 |
|
|
|
1777 |
|
|
|
1778 |
error = Mac_Read_sfnt_Resource( library, stream, data_offsets, count,
|
|
|
1779 |
face_index_internal, aface );
|
|
|
1780 |
FT_FREE( data_offsets );
|
|
|
1781 |
if ( !error )
|
|
|
1782 |
(*aface)->num_faces = count;
|
|
|
1783 |
}
|
|
|
1784 |
|
|
|
1785 |
return error;
|
|
|
1786 |
}
|
|
|
1787 |
|
|
|
1788 |
|
|
|
1789 |
/* Check for a valid macbinary header, and if we find one */
|
|
|
1790 |
/* check that the (flattened) resource fork in it is valid. */
|
|
|
1791 |
/* */
|
|
|
1792 |
static FT_Error
|
|
|
1793 |
IsMacBinary( FT_Library library,
|
|
|
1794 |
FT_Stream stream,
|
|
|
1795 |
FT_Long face_index,
|
|
|
1796 |
FT_Face *aface )
|
|
|
1797 |
{
|
|
|
1798 |
unsigned char header[128];
|
|
|
1799 |
FT_Error error;
|
|
|
1800 |
FT_Long dlen, offset;
|
|
|
1801 |
|
|
|
1802 |
|
|
|
1803 |
if ( NULL == stream )
|
|
|
1804 |
return FT_Err_Invalid_Stream_Operation;
|
|
|
1805 |
|
|
|
1806 |
error = FT_Stream_Seek( stream, 0 );
|
|
|
1807 |
if ( error )
|
|
|
1808 |
goto Exit;
|
|
|
1809 |
|
|
|
1810 |
error = FT_Stream_Read( stream, (FT_Byte*)header, 128 );
|
|
|
1811 |
if ( error )
|
|
|
1812 |
goto Exit;
|
|
|
1813 |
|
|
|
1814 |
if ( header[ 0] != 0 ||
|
|
|
1815 |
header[74] != 0 ||
|
|
|
1816 |
header[82] != 0 ||
|
|
|
1817 |
header[ 1] == 0 ||
|
|
|
1818 |
header[ 1] > 33 ||
|
|
|
1819 |
header[63] != 0 ||
|
|
|
1820 |
header[2 + header[1]] != 0 )
|
|
|
1821 |
return FT_Err_Unknown_File_Format;
|
|
|
1822 |
|
|
|
1823 |
dlen = ( header[0x53] << 24 ) |
|
|
|
1824 |
( header[0x54] << 16 ) |
|
|
|
1825 |
( header[0x55] << 8 ) |
|
|
|
1826 |
header[0x56];
|
|
|
1827 |
#if 0
|
|
|
1828 |
rlen = ( header[0x57] << 24 ) |
|
|
|
1829 |
( header[0x58] << 16 ) |
|
|
|
1830 |
( header[0x59] << 8 ) |
|
|
|
1831 |
header[0x5a];
|
|
|
1832 |
#endif /* 0 */
|
|
|
1833 |
offset = 128 + ( ( dlen + 127 ) & ~127 );
|
|
|
1834 |
|
|
|
1835 |
return IsMacResource( library, stream, offset, face_index, aface );
|
|
|
1836 |
|
|
|
1837 |
Exit:
|
|
|
1838 |
return error;
|
|
|
1839 |
}
|
|
|
1840 |
|
|
|
1841 |
|
|
|
1842 |
static FT_Error
|
|
|
1843 |
load_face_in_embedded_rfork( FT_Library library,
|
|
|
1844 |
FT_Stream stream,
|
|
|
1845 |
FT_Long face_index,
|
|
|
1846 |
FT_Face *aface,
|
|
|
1847 |
const FT_Open_Args *args )
|
|
|
1848 |
{
|
|
|
1849 |
|
|
|
1850 |
#undef FT_COMPONENT
|
|
|
1851 |
#define FT_COMPONENT trace_raccess
|
|
|
1852 |
|
|
|
1853 |
FT_Memory memory = library->memory;
|
|
|
1854 |
FT_Error error = FT_Err_Unknown_File_Format;
|
|
|
1855 |
int i;
|
|
|
1856 |
|
|
|
1857 |
char * file_names[FT_RACCESS_N_RULES];
|
|
|
1858 |
FT_Long offsets[FT_RACCESS_N_RULES];
|
|
|
1859 |
FT_Error errors[FT_RACCESS_N_RULES];
|
|
|
1860 |
FT_Bool is_darwin_vfs, vfs_rfork_has_no_font = FALSE; /* not tested */
|
|
|
1861 |
|
|
|
1862 |
FT_Open_Args args2;
|
|
|
1863 |
FT_Stream stream2 = 0;
|
|
|
1864 |
|
|
|
1865 |
|
|
|
1866 |
FT_Raccess_Guess( library, stream,
|
|
|
1867 |
args->pathname, file_names, offsets, errors );
|
|
|
1868 |
|
|
|
1869 |
for ( i = 0; i < FT_RACCESS_N_RULES; i++ )
|
|
|
1870 |
{
|
|
|
1871 |
is_darwin_vfs = raccess_rule_by_darwin_vfs( i );
|
|
|
1872 |
if ( is_darwin_vfs && vfs_rfork_has_no_font )
|
|
|
1873 |
{
|
|
|
1874 |
FT_TRACE3(( "Skip rule %d: darwin vfs resource fork"
|
|
|
1875 |
" is already checked and"
|
|
|
1876 |
" no font is found\n", i ));
|
|
|
1877 |
continue;
|
|
|
1878 |
}
|
|
|
1879 |
|
|
|
1880 |
if ( errors[i] )
|
|
|
1881 |
{
|
|
|
1882 |
FT_TRACE3(( "Error[%d] has occurred in rule %d\n", errors[i], i ));
|
|
|
1883 |
continue;
|
|
|
1884 |
}
|
|
|
1885 |
|
|
|
1886 |
args2.flags = FT_OPEN_PATHNAME;
|
|
|
1887 |
args2.pathname = file_names[i] ? file_names[i] : args->pathname;
|
|
|
1888 |
|
|
|
1889 |
FT_TRACE3(( "Try rule %d: %s (offset=%d) ...",
|
|
|
1890 |
i, args2.pathname, offsets[i] ));
|
|
|
1891 |
|
|
|
1892 |
error = FT_Stream_New( library, &args2, &stream2 );
|
|
|
1893 |
if ( is_darwin_vfs && error == FT_Err_Cannot_Open_Stream )
|
|
|
1894 |
vfs_rfork_has_no_font = TRUE;
|
|
|
1895 |
|
|
|
1896 |
if ( error )
|
|
|
1897 |
{
|
|
|
1898 |
FT_TRACE3(( "failed\n" ));
|
|
|
1899 |
continue;
|
|
|
1900 |
}
|
|
|
1901 |
|
|
|
1902 |
error = IsMacResource( library, stream2, offsets[i],
|
|
|
1903 |
face_index, aface );
|
|
|
1904 |
FT_Stream_Free( stream2, 0 );
|
|
|
1905 |
|
|
|
1906 |
FT_TRACE3(( "%s\n", error ? "failed": "successful" ));
|
|
|
1907 |
|
|
|
1908 |
if ( !error )
|
|
|
1909 |
break;
|
|
|
1910 |
else if ( is_darwin_vfs )
|
|
|
1911 |
vfs_rfork_has_no_font = TRUE;
|
|
|
1912 |
}
|
|
|
1913 |
|
|
|
1914 |
for (i = 0; i < FT_RACCESS_N_RULES; i++)
|
|
|
1915 |
{
|
|
|
1916 |
if ( file_names[i] )
|
|
|
1917 |
FT_FREE( file_names[i] );
|
|
|
1918 |
}
|
|
|
1919 |
|
|
|
1920 |
/* Caller (load_mac_face) requires FT_Err_Unknown_File_Format. */
|
|
|
1921 |
if ( error )
|
|
|
1922 |
error = FT_Err_Unknown_File_Format;
|
|
|
1923 |
|
|
|
1924 |
return error;
|
|
|
1925 |
|
|
|
1926 |
#undef FT_COMPONENT
|
|
|
1927 |
#define FT_COMPONENT trace_objs
|
|
|
1928 |
|
|
|
1929 |
}
|
|
|
1930 |
|
|
|
1931 |
|
|
|
1932 |
/* Check for some macintosh formats without Carbon framework. */
|
|
|
1933 |
/* Is this a macbinary file? If so look at the resource fork. */
|
|
|
1934 |
/* Is this a mac dfont file? */
|
|
|
1935 |
/* Is this an old style resource fork? (in data) */
|
|
|
1936 |
/* Else call load_face_in_embedded_rfork to try extra rules */
|
|
|
1937 |
/* (defined in `ftrfork.c'). */
|
|
|
1938 |
/* */
|
|
|
1939 |
static FT_Error
|
|
|
1940 |
load_mac_face( FT_Library library,
|
|
|
1941 |
FT_Stream stream,
|
|
|
1942 |
FT_Long face_index,
|
|
|
1943 |
FT_Face *aface,
|
|
|
1944 |
const FT_Open_Args *args )
|
|
|
1945 |
{
|
|
|
1946 |
FT_Error error;
|
|
|
1947 |
FT_UNUSED( args );
|
|
|
1948 |
|
|
|
1949 |
|
|
|
1950 |
error = IsMacBinary( library, stream, face_index, aface );
|
|
|
1951 |
if ( FT_ERROR_BASE( error ) == FT_Err_Unknown_File_Format )
|
|
|
1952 |
{
|
|
|
1953 |
|
|
|
1954 |
#undef FT_COMPONENT
|
|
|
1955 |
#define FT_COMPONENT trace_raccess
|
|
|
1956 |
|
|
|
1957 |
FT_TRACE3(( "Try as dfont: %s ...", args->pathname ));
|
|
|
1958 |
|
|
|
1959 |
error = IsMacResource( library, stream, 0, face_index, aface );
|
|
|
1960 |
|
|
|
1961 |
FT_TRACE3(( "%s\n", error ? "failed" : "successful" ));
|
|
|
1962 |
|
|
|
1963 |
#undef FT_COMPONENT
|
|
|
1964 |
#define FT_COMPONENT trace_objs
|
|
|
1965 |
|
|
|
1966 |
}
|
|
|
1967 |
|
|
|
1968 |
if ( ( FT_ERROR_BASE( error ) == FT_Err_Unknown_File_Format ||
|
|
|
1969 |
FT_ERROR_BASE( error ) == FT_Err_Invalid_Stream_Operation ) &&
|
|
|
1970 |
( args->flags & FT_OPEN_PATHNAME ) )
|
|
|
1971 |
error = load_face_in_embedded_rfork( library, stream,
|
|
|
1972 |
face_index, aface, args );
|
|
|
1973 |
return error;
|
|
|
1974 |
}
|
|
|
1975 |
#endif
|
|
|
1976 |
|
|
|
1977 |
#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */
|
|
|
1978 |
|
|
|
1979 |
|
|
|
1980 |
/* documentation is in freetype.h */
|
|
|
1981 |
|
|
|
1982 |
FT_EXPORT_DEF( FT_Error )
|
|
|
1983 |
FT_Open_Face( FT_Library library,
|
|
|
1984 |
const FT_Open_Args* args,
|
|
|
1985 |
FT_Long face_index,
|
|
|
1986 |
FT_Face *aface )
|
|
|
1987 |
{
|
|
|
1988 |
FT_Error error;
|
|
|
1989 |
FT_Driver driver;
|
|
|
1990 |
FT_Memory memory;
|
|
|
1991 |
FT_Stream stream = NULL;
|
|
|
1992 |
FT_Face face = NULL;
|
|
|
1993 |
FT_ListNode node = NULL;
|
|
|
1994 |
FT_Bool external_stream;
|
|
|
1995 |
FT_Module* cur;
|
|
|
1996 |
FT_Module* limit;
|
|
|
1997 |
|
|
|
1998 |
|
|
|
1999 |
/* test for valid `library' delayed to */
|
|
|
2000 |
/* FT_Stream_New() */
|
|
|
2001 |
|
|
|
2002 |
if ( ( !aface && face_index >= 0 ) || !args )
|
|
|
2003 |
return FT_Err_Invalid_Argument;
|
|
|
2004 |
|
|
|
2005 |
external_stream = FT_BOOL( ( args->flags & FT_OPEN_STREAM ) &&
|
|
|
2006 |
args->stream );
|
|
|
2007 |
|
|
|
2008 |
/* create input stream */
|
|
|
2009 |
error = FT_Stream_New( library, args, &stream );
|
|
|
2010 |
if ( error )
|
|
|
2011 |
goto Fail3;
|
|
|
2012 |
|
|
|
2013 |
memory = library->memory;
|
|
|
2014 |
|
|
|
2015 |
/* If the font driver is specified in the `args' structure, use */
|
|
|
2016 |
/* it. Otherwise, we scan the list of registered drivers. */
|
|
|
2017 |
if ( ( args->flags & FT_OPEN_DRIVER ) && args->driver )
|
|
|
2018 |
{
|
|
|
2019 |
driver = FT_DRIVER( args->driver );
|
|
|
2020 |
|
|
|
2021 |
/* not all modules are drivers, so check... */
|
|
|
2022 |
if ( FT_MODULE_IS_DRIVER( driver ) )
|
|
|
2023 |
{
|
|
|
2024 |
FT_Int num_params = 0;
|
|
|
2025 |
FT_Parameter* params = 0;
|
|
|
2026 |
|
|
|
2027 |
|
|
|
2028 |
if ( args->flags & FT_OPEN_PARAMS )
|
|
|
2029 |
{
|
|
|
2030 |
num_params = args->num_params;
|
|
|
2031 |
params = args->params;
|
|
|
2032 |
}
|
|
|
2033 |
|
|
|
2034 |
error = open_face( driver, stream, face_index,
|
|
|
2035 |
num_params, params, &face );
|
|
|
2036 |
if ( !error )
|
|
|
2037 |
goto Success;
|
|
|
2038 |
}
|
|
|
2039 |
else
|
|
|
2040 |
error = FT_Err_Invalid_Handle;
|
|
|
2041 |
|
|
|
2042 |
FT_Stream_Free( stream, external_stream );
|
|
|
2043 |
goto Fail;
|
|
|
2044 |
}
|
|
|
2045 |
else
|
|
|
2046 |
{
|
|
|
2047 |
/* check each font driver for an appropriate format */
|
|
|
2048 |
cur = library->modules;
|
|
|
2049 |
limit = cur + library->num_modules;
|
|
|
2050 |
|
|
|
2051 |
|
|
|
2052 |
for ( ; cur < limit; cur++ )
|
|
|
2053 |
{
|
|
|
2054 |
/* not all modules are font drivers, so check... */
|
|
|
2055 |
if ( FT_MODULE_IS_DRIVER( cur[0] ) )
|
|
|
2056 |
{
|
|
|
2057 |
FT_Int num_params = 0;
|
|
|
2058 |
FT_Parameter* params = 0;
|
|
|
2059 |
|
|
|
2060 |
|
|
|
2061 |
driver = FT_DRIVER( cur[0] );
|
|
|
2062 |
|
|
|
2063 |
if ( args->flags & FT_OPEN_PARAMS )
|
|
|
2064 |
{
|
|
|
2065 |
num_params = args->num_params;
|
|
|
2066 |
params = args->params;
|
|
|
2067 |
}
|
|
|
2068 |
|
|
|
2069 |
error = open_face( driver, stream, face_index,
|
|
|
2070 |
num_params, params, &face );
|
|
|
2071 |
if ( !error )
|
|
|
2072 |
goto Success;
|
|
|
2073 |
|
|
|
2074 |
#ifdef FT_CONFIG_OPTION_MAC_FONTS
|
|
|
2075 |
if ( ft_strcmp( cur[0]->clazz->module_name, "truetype" ) == 0 &&
|
|
|
2076 |
FT_ERROR_BASE( error ) == FT_Err_Table_Missing )
|
|
|
2077 |
{
|
|
|
2078 |
/* TrueType but essential tables are missing */
|
|
|
2079 |
if ( FT_Stream_Seek( stream, 0 ) )
|
|
|
2080 |
break;
|
|
|
2081 |
|
|
|
2082 |
error = open_face_PS_from_sfnt_stream( library,
|
|
|
2083 |
stream,
|
|
|
2084 |
face_index,
|
|
|
2085 |
num_params,
|
|
|
2086 |
params,
|
|
|
2087 |
aface );
|
|
|
2088 |
if ( !error )
|
|
|
2089 |
{
|
|
|
2090 |
FT_Stream_Free( stream, external_stream );
|
|
|
2091 |
return error;
|
|
|
2092 |
}
|
|
|
2093 |
}
|
|
|
2094 |
#endif
|
|
|
2095 |
|
|
|
2096 |
if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format )
|
|
|
2097 |
goto Fail3;
|
|
|
2098 |
}
|
|
|
2099 |
}
|
|
|
2100 |
|
|
|
2101 |
Fail3:
|
|
|
2102 |
/* If we are on the mac, and we get an FT_Err_Invalid_Stream_Operation */
|
|
|
2103 |
/* it may be because we have an empty data fork, so we need to check */
|
|
|
2104 |
/* the resource fork. */
|
|
|
2105 |
if ( FT_ERROR_BASE( error ) != FT_Err_Cannot_Open_Stream &&
|
|
|
2106 |
FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format &&
|
|
|
2107 |
FT_ERROR_BASE( error ) != FT_Err_Invalid_Stream_Operation )
|
|
|
2108 |
goto Fail2;
|
|
|
2109 |
|
|
|
2110 |
#if !defined( FT_MACINTOSH ) && defined( FT_CONFIG_OPTION_MAC_FONTS )
|
|
|
2111 |
error = load_mac_face( library, stream, face_index, aface, args );
|
|
|
2112 |
if ( !error )
|
|
|
2113 |
{
|
|
|
2114 |
/* We don't want to go to Success here. We've already done that. */
|
|
|
2115 |
/* On the other hand, if we succeeded we still need to close this */
|
|
|
2116 |
/* stream (we opened a different stream which extracted the */
|
|
|
2117 |
/* interesting information out of this stream here. That stream */
|
|
|
2118 |
/* will still be open and the face will point to it). */
|
|
|
2119 |
FT_Stream_Free( stream, external_stream );
|
|
|
2120 |
return error;
|
|
|
2121 |
}
|
|
|
2122 |
|
|
|
2123 |
if ( FT_ERROR_BASE( error ) != FT_Err_Unknown_File_Format )
|
|
|
2124 |
goto Fail2;
|
|
|
2125 |
#endif /* !FT_MACINTOSH && FT_CONFIG_OPTION_MAC_FONTS */
|
|
|
2126 |
|
|
|
2127 |
/* no driver is able to handle this format */
|
|
|
2128 |
error = FT_Err_Unknown_File_Format;
|
|
|
2129 |
|
|
|
2130 |
Fail2:
|
|
|
2131 |
FT_Stream_Free( stream, external_stream );
|
|
|
2132 |
goto Fail;
|
|
|
2133 |
}
|
|
|
2134 |
|
|
|
2135 |
Success:
|
|
|
2136 |
FT_TRACE4(( "FT_Open_Face: New face object, adding to list\n" ));
|
|
|
2137 |
|
|
|
2138 |
/* set the FT_FACE_FLAG_EXTERNAL_STREAM bit for FT_Done_Face */
|
|
|
2139 |
if ( external_stream )
|
|
|
2140 |
face->face_flags |= FT_FACE_FLAG_EXTERNAL_STREAM;
|
|
|
2141 |
|
|
|
2142 |
/* add the face object to its driver's list */
|
|
|
2143 |
if ( FT_NEW( node ) )
|
|
|
2144 |
goto Fail;
|
|
|
2145 |
|
|
|
2146 |
node->data = face;
|
|
|
2147 |
/* don't assume driver is the same as face->driver, so use */
|
|
|
2148 |
/* face->driver instead. */
|
|
|
2149 |
FT_List_Add( &face->driver->faces_list, node );
|
|
|
2150 |
|
|
|
2151 |
/* now allocate a glyph slot object for the face */
|
|
|
2152 |
FT_TRACE4(( "FT_Open_Face: Creating glyph slot\n" ));
|
|
|
2153 |
|
|
|
2154 |
if ( face_index >= 0 )
|
|
|
2155 |
{
|
|
|
2156 |
error = FT_New_GlyphSlot( face, NULL );
|
|
|
2157 |
if ( error )
|
|
|
2158 |
goto Fail;
|
|
|
2159 |
|
|
|
2160 |
/* finally, allocate a size object for the face */
|
|
|
2161 |
{
|
|
|
2162 |
FT_Size size;
|
|
|
2163 |
|
|
|
2164 |
|
|
|
2165 |
FT_TRACE4(( "FT_Open_Face: Creating size object\n" ));
|
|
|
2166 |
|
|
|
2167 |
error = FT_New_Size( face, &size );
|
|
|
2168 |
if ( error )
|
|
|
2169 |
goto Fail;
|
|
|
2170 |
|
|
|
2171 |
face->size = size;
|
|
|
2172 |
}
|
|
|
2173 |
}
|
|
|
2174 |
|
|
|
2175 |
/* some checks */
|
|
|
2176 |
|
|
|
2177 |
if ( FT_IS_SCALABLE( face ) )
|
|
|
2178 |
{
|
|
|
2179 |
if ( face->height < 0 )
|
|
|
2180 |
face->height = (FT_Short)-face->height;
|
|
|
2181 |
|
|
|
2182 |
if ( !FT_HAS_VERTICAL( face ) )
|
|
|
2183 |
face->max_advance_height = (FT_Short)face->height;
|
|
|
2184 |
}
|
|
|
2185 |
|
|
|
2186 |
if ( FT_HAS_FIXED_SIZES( face ) )
|
|
|
2187 |
{
|
|
|
2188 |
FT_Int i;
|
|
|
2189 |
|
|
|
2190 |
|
|
|
2191 |
for ( i = 0; i < face->num_fixed_sizes; i++ )
|
|
|
2192 |
{
|
|
|
2193 |
FT_Bitmap_Size* bsize = face->available_sizes + i;
|
|
|
2194 |
|
|
|
2195 |
|
|
|
2196 |
if ( bsize->height < 0 )
|
|
|
2197 |
bsize->height = (FT_Short)-bsize->height;
|
|
|
2198 |
if ( bsize->x_ppem < 0 )
|
|
|
2199 |
bsize->x_ppem = (FT_Short)-bsize->x_ppem;
|
|
|
2200 |
if ( bsize->y_ppem < 0 )
|
|
|
2201 |
bsize->y_ppem = -bsize->y_ppem;
|
|
|
2202 |
}
|
|
|
2203 |
}
|
|
|
2204 |
|
|
|
2205 |
/* initialize internal face data */
|
|
|
2206 |
{
|
|
|
2207 |
FT_Face_Internal internal = face->internal;
|
|
|
2208 |
|
|
|
2209 |
|
|
|
2210 |
internal->transform_matrix.xx = 0x10000L;
|
|
|
2211 |
internal->transform_matrix.xy = 0;
|
|
|
2212 |
internal->transform_matrix.yx = 0;
|
|
|
2213 |
internal->transform_matrix.yy = 0x10000L;
|
|
|
2214 |
|
|
|
2215 |
internal->transform_delta.x = 0;
|
|
|
2216 |
internal->transform_delta.y = 0;
|
|
|
2217 |
|
|
|
2218 |
internal->refcount = 1;
|
|
|
2219 |
}
|
|
|
2220 |
|
|
|
2221 |
if ( aface )
|
|
|
2222 |
*aface = face;
|
|
|
2223 |
else
|
|
|
2224 |
FT_Done_Face( face );
|
|
|
2225 |
|
|
|
2226 |
goto Exit;
|
|
|
2227 |
|
|
|
2228 |
Fail:
|
|
|
2229 |
FT_Done_Face( face );
|
|
|
2230 |
|
|
|
2231 |
Exit:
|
|
|
2232 |
FT_TRACE4(( "FT_Open_Face: Return %d\n", error ));
|
|
|
2233 |
|
|
|
2234 |
return error;
|
|
|
2235 |
}
|
|
|
2236 |
|
|
|
2237 |
|
|
|
2238 |
/* documentation is in freetype.h */
|
|
|
2239 |
|
|
|
2240 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2241 |
FT_Attach_File( FT_Face face,
|
|
|
2242 |
const char* filepathname )
|
|
|
2243 |
{
|
|
|
2244 |
FT_Open_Args open;
|
|
|
2245 |
|
|
|
2246 |
|
|
|
2247 |
/* test for valid `face' delayed to FT_Attach_Stream() */
|
|
|
2248 |
|
|
|
2249 |
if ( !filepathname )
|
|
|
2250 |
return FT_Err_Invalid_Argument;
|
|
|
2251 |
|
|
|
2252 |
open.stream = NULL;
|
|
|
2253 |
open.flags = FT_OPEN_PATHNAME;
|
|
|
2254 |
open.pathname = (char*)filepathname;
|
|
|
2255 |
|
|
|
2256 |
return FT_Attach_Stream( face, &open );
|
|
|
2257 |
}
|
|
|
2258 |
|
|
|
2259 |
|
|
|
2260 |
/* documentation is in freetype.h */
|
|
|
2261 |
|
|
|
2262 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2263 |
FT_Attach_Stream( FT_Face face,
|
|
|
2264 |
FT_Open_Args* parameters )
|
|
|
2265 |
{
|
|
|
2266 |
FT_Stream stream;
|
|
|
2267 |
FT_Error error;
|
|
|
2268 |
FT_Driver driver;
|
|
|
2269 |
|
|
|
2270 |
FT_Driver_Class clazz;
|
|
|
2271 |
|
|
|
2272 |
|
|
|
2273 |
/* test for valid `parameters' delayed to FT_Stream_New() */
|
|
|
2274 |
|
|
|
2275 |
if ( !face )
|
|
|
2276 |
return FT_Err_Invalid_Face_Handle;
|
|
|
2277 |
|
|
|
2278 |
driver = face->driver;
|
|
|
2279 |
if ( !driver )
|
|
|
2280 |
return FT_Err_Invalid_Driver_Handle;
|
|
|
2281 |
|
|
|
2282 |
error = FT_Stream_New( driver->root.library, parameters, &stream );
|
|
|
2283 |
if ( error )
|
|
|
2284 |
goto Exit;
|
|
|
2285 |
|
|
|
2286 |
/* we implement FT_Attach_Stream in each driver through the */
|
|
|
2287 |
/* `attach_file' interface */
|
|
|
2288 |
|
|
|
2289 |
error = FT_Err_Unimplemented_Feature;
|
|
|
2290 |
clazz = driver->clazz;
|
|
|
2291 |
if ( clazz->attach_file )
|
|
|
2292 |
error = clazz->attach_file( face, stream );
|
|
|
2293 |
|
|
|
2294 |
/* close the attached stream */
|
|
|
2295 |
FT_Stream_Free( stream,
|
|
|
2296 |
(FT_Bool)( parameters->stream &&
|
|
|
2297 |
( parameters->flags & FT_OPEN_STREAM ) ) );
|
|
|
2298 |
|
|
|
2299 |
Exit:
|
|
|
2300 |
return error;
|
|
|
2301 |
}
|
|
|
2302 |
|
|
|
2303 |
|
|
|
2304 |
/* documentation is in freetype.h */
|
|
|
2305 |
|
|
|
2306 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2307 |
FT_Reference_Face( FT_Face face )
|
|
|
2308 |
{
|
|
|
2309 |
face->internal->refcount++;
|
|
|
2310 |
|
|
|
2311 |
return FT_Err_Ok;
|
|
|
2312 |
}
|
|
|
2313 |
|
|
|
2314 |
|
|
|
2315 |
/* documentation is in freetype.h */
|
|
|
2316 |
|
|
|
2317 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2318 |
FT_Done_Face( FT_Face face )
|
|
|
2319 |
{
|
|
|
2320 |
FT_Error error;
|
|
|
2321 |
FT_Driver driver;
|
|
|
2322 |
FT_Memory memory;
|
|
|
2323 |
FT_ListNode node;
|
|
|
2324 |
|
|
|
2325 |
|
|
|
2326 |
error = FT_Err_Invalid_Face_Handle;
|
|
|
2327 |
if ( face && face->driver )
|
|
|
2328 |
{
|
|
|
2329 |
face->internal->refcount--;
|
|
|
2330 |
if ( face->internal->refcount > 0 )
|
|
|
2331 |
error = FT_Err_Ok;
|
|
|
2332 |
else
|
|
|
2333 |
{
|
|
|
2334 |
driver = face->driver;
|
|
|
2335 |
memory = driver->root.memory;
|
|
|
2336 |
|
|
|
2337 |
/* find face in driver's list */
|
|
|
2338 |
node = FT_List_Find( &driver->faces_list, face );
|
|
|
2339 |
if ( node )
|
|
|
2340 |
{
|
|
|
2341 |
/* remove face object from the driver's list */
|
|
|
2342 |
FT_List_Remove( &driver->faces_list, node );
|
|
|
2343 |
FT_FREE( node );
|
|
|
2344 |
|
|
|
2345 |
/* now destroy the object proper */
|
|
|
2346 |
destroy_face( memory, face, driver );
|
|
|
2347 |
error = FT_Err_Ok;
|
|
|
2348 |
}
|
|
|
2349 |
}
|
|
|
2350 |
}
|
|
|
2351 |
|
|
|
2352 |
return error;
|
|
|
2353 |
}
|
|
|
2354 |
|
|
|
2355 |
|
|
|
2356 |
/* documentation is in ftobjs.h */
|
|
|
2357 |
|
|
|
2358 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2359 |
FT_New_Size( FT_Face face,
|
|
|
2360 |
FT_Size *asize )
|
|
|
2361 |
{
|
|
|
2362 |
FT_Error error;
|
|
|
2363 |
FT_Memory memory;
|
|
|
2364 |
FT_Driver driver;
|
|
|
2365 |
FT_Driver_Class clazz;
|
|
|
2366 |
|
|
|
2367 |
FT_Size size = 0;
|
|
|
2368 |
FT_ListNode node = 0;
|
|
|
2369 |
|
|
|
2370 |
|
|
|
2371 |
if ( !face )
|
|
|
2372 |
return FT_Err_Invalid_Face_Handle;
|
|
|
2373 |
|
|
|
2374 |
if ( !asize )
|
|
|
2375 |
return FT_Err_Invalid_Size_Handle;
|
|
|
2376 |
|
|
|
2377 |
if ( !face->driver )
|
|
|
2378 |
return FT_Err_Invalid_Driver_Handle;
|
|
|
2379 |
|
|
|
2380 |
*asize = 0;
|
|
|
2381 |
|
|
|
2382 |
driver = face->driver;
|
|
|
2383 |
clazz = driver->clazz;
|
|
|
2384 |
memory = face->memory;
|
|
|
2385 |
|
|
|
2386 |
/* Allocate new size object and perform basic initialisation */
|
|
|
2387 |
if ( FT_ALLOC( size, clazz->size_object_size ) || FT_NEW( node ) )
|
|
|
2388 |
goto Exit;
|
|
|
2389 |
|
|
|
2390 |
size->face = face;
|
|
|
2391 |
|
|
|
2392 |
/* for now, do not use any internal fields in size objects */
|
|
|
2393 |
size->internal = 0;
|
|
|
2394 |
|
|
|
2395 |
if ( clazz->init_size )
|
|
|
2396 |
error = clazz->init_size( size );
|
|
|
2397 |
|
|
|
2398 |
/* in case of success, add to the face's list */
|
|
|
2399 |
if ( !error )
|
|
|
2400 |
{
|
|
|
2401 |
*asize = size;
|
|
|
2402 |
node->data = size;
|
|
|
2403 |
FT_List_Add( &face->sizes_list, node );
|
|
|
2404 |
}
|
|
|
2405 |
|
|
|
2406 |
Exit:
|
|
|
2407 |
if ( error )
|
|
|
2408 |
{
|
|
|
2409 |
FT_FREE( node );
|
|
|
2410 |
FT_FREE( size );
|
|
|
2411 |
}
|
|
|
2412 |
|
|
|
2413 |
return error;
|
|
|
2414 |
}
|
|
|
2415 |
|
|
|
2416 |
|
|
|
2417 |
/* documentation is in ftobjs.h */
|
|
|
2418 |
|
|
|
2419 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2420 |
FT_Done_Size( FT_Size size )
|
|
|
2421 |
{
|
|
|
2422 |
FT_Error error;
|
|
|
2423 |
FT_Driver driver;
|
|
|
2424 |
FT_Memory memory;
|
|
|
2425 |
FT_Face face;
|
|
|
2426 |
FT_ListNode node;
|
|
|
2427 |
|
|
|
2428 |
|
|
|
2429 |
if ( !size )
|
|
|
2430 |
return FT_Err_Invalid_Size_Handle;
|
|
|
2431 |
|
|
|
2432 |
face = size->face;
|
|
|
2433 |
if ( !face )
|
|
|
2434 |
return FT_Err_Invalid_Face_Handle;
|
|
|
2435 |
|
|
|
2436 |
driver = face->driver;
|
|
|
2437 |
if ( !driver )
|
|
|
2438 |
return FT_Err_Invalid_Driver_Handle;
|
|
|
2439 |
|
|
|
2440 |
memory = driver->root.memory;
|
|
|
2441 |
|
|
|
2442 |
error = FT_Err_Ok;
|
|
|
2443 |
node = FT_List_Find( &face->sizes_list, size );
|
|
|
2444 |
if ( node )
|
|
|
2445 |
{
|
|
|
2446 |
FT_List_Remove( &face->sizes_list, node );
|
|
|
2447 |
FT_FREE( node );
|
|
|
2448 |
|
|
|
2449 |
if ( face->size == size )
|
|
|
2450 |
{
|
|
|
2451 |
face->size = 0;
|
|
|
2452 |
if ( face->sizes_list.head )
|
|
|
2453 |
face->size = (FT_Size)(face->sizes_list.head->data);
|
|
|
2454 |
}
|
|
|
2455 |
|
|
|
2456 |
destroy_size( memory, size, driver );
|
|
|
2457 |
}
|
|
|
2458 |
else
|
|
|
2459 |
error = FT_Err_Invalid_Size_Handle;
|
|
|
2460 |
|
|
|
2461 |
return error;
|
|
|
2462 |
}
|
|
|
2463 |
|
|
|
2464 |
|
|
|
2465 |
/* documentation is in ftobjs.h */
|
|
|
2466 |
|
|
|
2467 |
FT_BASE_DEF( FT_Error )
|
|
|
2468 |
FT_Match_Size( FT_Face face,
|
|
|
2469 |
FT_Size_Request req,
|
|
|
2470 |
FT_Bool ignore_width,
|
|
|
2471 |
FT_ULong* size_index )
|
|
|
2472 |
{
|
|
|
2473 |
FT_Int i;
|
|
|
2474 |
FT_Long w, h;
|
|
|
2475 |
|
|
|
2476 |
|
|
|
2477 |
if ( !FT_HAS_FIXED_SIZES( face ) )
|
|
|
2478 |
return FT_Err_Invalid_Face_Handle;
|
|
|
2479 |
|
|
|
2480 |
/* FT_Bitmap_Size doesn't provide enough info... */
|
|
|
2481 |
if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL )
|
|
|
2482 |
return FT_Err_Unimplemented_Feature;
|
|
|
2483 |
|
|
|
2484 |
w = FT_REQUEST_WIDTH ( req );
|
|
|
2485 |
h = FT_REQUEST_HEIGHT( req );
|
|
|
2486 |
|
|
|
2487 |
if ( req->width && !req->height )
|
|
|
2488 |
h = w;
|
|
|
2489 |
else if ( !req->width && req->height )
|
|
|
2490 |
w = h;
|
|
|
2491 |
|
|
|
2492 |
w = FT_PIX_ROUND( w );
|
|
|
2493 |
h = FT_PIX_ROUND( h );
|
|
|
2494 |
|
|
|
2495 |
for ( i = 0; i < face->num_fixed_sizes; i++ )
|
|
|
2496 |
{
|
|
|
2497 |
FT_Bitmap_Size* bsize = face->available_sizes + i;
|
|
|
2498 |
|
|
|
2499 |
|
|
|
2500 |
if ( h != FT_PIX_ROUND( bsize->y_ppem ) )
|
|
|
2501 |
continue;
|
|
|
2502 |
|
|
|
2503 |
if ( w == FT_PIX_ROUND( bsize->x_ppem ) || ignore_width )
|
|
|
2504 |
{
|
|
|
2505 |
if ( size_index )
|
|
|
2506 |
*size_index = (FT_ULong)i;
|
|
|
2507 |
|
|
|
2508 |
return FT_Err_Ok;
|
|
|
2509 |
}
|
|
|
2510 |
}
|
|
|
2511 |
|
|
|
2512 |
return FT_Err_Invalid_Pixel_Size;
|
|
|
2513 |
}
|
|
|
2514 |
|
|
|
2515 |
|
|
|
2516 |
/* documentation is in ftobjs.h */
|
|
|
2517 |
|
|
|
2518 |
FT_BASE_DEF( void )
|
|
|
2519 |
ft_synthesize_vertical_metrics( FT_Glyph_Metrics* metrics,
|
|
|
2520 |
FT_Pos advance )
|
|
|
2521 |
{
|
|
|
2522 |
FT_Pos height = metrics->height;
|
|
|
2523 |
|
|
|
2524 |
|
|
|
2525 |
/* compensate for glyph with bbox above/below the baseline */
|
|
|
2526 |
if ( metrics->horiBearingY < 0 )
|
|
|
2527 |
{
|
|
|
2528 |
if ( height < metrics->horiBearingY )
|
|
|
2529 |
height = metrics->horiBearingY;
|
|
|
2530 |
}
|
|
|
2531 |
else if ( metrics->horiBearingY > 0 )
|
|
|
2532 |
height -= metrics->horiBearingY;
|
|
|
2533 |
|
|
|
2534 |
/* the factor 1.2 is a heuristical value */
|
|
|
2535 |
if ( !advance )
|
|
|
2536 |
advance = height * 12 / 10;
|
|
|
2537 |
|
|
|
2538 |
metrics->vertBearingX = metrics->horiBearingX - metrics->horiAdvance / 2;
|
|
|
2539 |
metrics->vertBearingY = ( advance - height ) / 2;
|
|
|
2540 |
metrics->vertAdvance = advance;
|
|
|
2541 |
}
|
|
|
2542 |
|
|
|
2543 |
|
|
|
2544 |
static void
|
|
|
2545 |
ft_recompute_scaled_metrics( FT_Face face,
|
|
|
2546 |
FT_Size_Metrics* metrics )
|
|
|
2547 |
{
|
|
|
2548 |
/* Compute root ascender, descender, test height, and max_advance */
|
|
|
2549 |
|
|
|
2550 |
#ifdef GRID_FIT_METRICS
|
|
|
2551 |
metrics->ascender = FT_PIX_CEIL( FT_MulFix( face->ascender,
|
|
|
2552 |
metrics->y_scale ) );
|
|
|
2553 |
|
|
|
2554 |
metrics->descender = FT_PIX_FLOOR( FT_MulFix( face->descender,
|
|
|
2555 |
metrics->y_scale ) );
|
|
|
2556 |
|
|
|
2557 |
metrics->height = FT_PIX_ROUND( FT_MulFix( face->height,
|
|
|
2558 |
metrics->y_scale ) );
|
|
|
2559 |
|
|
|
2560 |
metrics->max_advance = FT_PIX_ROUND( FT_MulFix( face->max_advance_width,
|
|
|
2561 |
metrics->x_scale ) );
|
|
|
2562 |
#else /* !GRID_FIT_METRICS */
|
|
|
2563 |
metrics->ascender = FT_MulFix( face->ascender,
|
|
|
2564 |
metrics->y_scale );
|
|
|
2565 |
|
|
|
2566 |
metrics->descender = FT_MulFix( face->descender,
|
|
|
2567 |
metrics->y_scale );
|
|
|
2568 |
|
|
|
2569 |
metrics->height = FT_MulFix( face->height,
|
|
|
2570 |
metrics->y_scale );
|
|
|
2571 |
|
|
|
2572 |
metrics->max_advance = FT_MulFix( face->max_advance_width,
|
|
|
2573 |
metrics->x_scale );
|
|
|
2574 |
#endif /* !GRID_FIT_METRICS */
|
|
|
2575 |
}
|
|
|
2576 |
|
|
|
2577 |
|
|
|
2578 |
FT_BASE_DEF( void )
|
|
|
2579 |
FT_Select_Metrics( FT_Face face,
|
|
|
2580 |
FT_ULong strike_index )
|
|
|
2581 |
{
|
|
|
2582 |
FT_Size_Metrics* metrics;
|
|
|
2583 |
FT_Bitmap_Size* bsize;
|
|
|
2584 |
|
|
|
2585 |
|
|
|
2586 |
metrics = &face->size->metrics;
|
|
|
2587 |
bsize = face->available_sizes + strike_index;
|
|
|
2588 |
|
|
|
2589 |
metrics->x_ppem = (FT_UShort)( ( bsize->x_ppem + 32 ) >> 6 );
|
|
|
2590 |
metrics->y_ppem = (FT_UShort)( ( bsize->y_ppem + 32 ) >> 6 );
|
|
|
2591 |
|
|
|
2592 |
if ( FT_IS_SCALABLE( face ) )
|
|
|
2593 |
{
|
|
|
2594 |
metrics->x_scale = FT_DivFix( bsize->x_ppem,
|
|
|
2595 |
face->units_per_EM );
|
|
|
2596 |
metrics->y_scale = FT_DivFix( bsize->y_ppem,
|
|
|
2597 |
face->units_per_EM );
|
|
|
2598 |
|
|
|
2599 |
ft_recompute_scaled_metrics( face, metrics );
|
|
|
2600 |
}
|
|
|
2601 |
else
|
|
|
2602 |
{
|
|
|
2603 |
metrics->x_scale = 1L << 16;
|
|
|
2604 |
metrics->y_scale = 1L << 16;
|
|
|
2605 |
metrics->ascender = bsize->y_ppem;
|
|
|
2606 |
metrics->descender = 0;
|
|
|
2607 |
metrics->height = bsize->height << 6;
|
|
|
2608 |
metrics->max_advance = bsize->x_ppem;
|
|
|
2609 |
}
|
|
|
2610 |
}
|
|
|
2611 |
|
|
|
2612 |
|
|
|
2613 |
FT_BASE_DEF( void )
|
|
|
2614 |
FT_Request_Metrics( FT_Face face,
|
|
|
2615 |
FT_Size_Request req )
|
|
|
2616 |
{
|
|
|
2617 |
FT_Size_Metrics* metrics;
|
|
|
2618 |
|
|
|
2619 |
|
|
|
2620 |
metrics = &face->size->metrics;
|
|
|
2621 |
|
|
|
2622 |
if ( FT_IS_SCALABLE( face ) )
|
|
|
2623 |
{
|
|
|
2624 |
FT_Long w = 0, h = 0, scaled_w = 0, scaled_h = 0;
|
|
|
2625 |
|
|
|
2626 |
|
|
|
2627 |
switch ( req->type )
|
|
|
2628 |
{
|
|
|
2629 |
case FT_SIZE_REQUEST_TYPE_NOMINAL:
|
|
|
2630 |
w = h = face->units_per_EM;
|
|
|
2631 |
break;
|
|
|
2632 |
|
|
|
2633 |
case FT_SIZE_REQUEST_TYPE_REAL_DIM:
|
|
|
2634 |
w = h = face->ascender - face->descender;
|
|
|
2635 |
break;
|
|
|
2636 |
|
|
|
2637 |
case FT_SIZE_REQUEST_TYPE_BBOX:
|
|
|
2638 |
w = face->bbox.xMax - face->bbox.xMin;
|
|
|
2639 |
h = face->bbox.yMax - face->bbox.yMin;
|
|
|
2640 |
break;
|
|
|
2641 |
|
|
|
2642 |
case FT_SIZE_REQUEST_TYPE_CELL:
|
|
|
2643 |
w = face->max_advance_width;
|
|
|
2644 |
h = face->ascender - face->descender;
|
|
|
2645 |
break;
|
|
|
2646 |
|
|
|
2647 |
case FT_SIZE_REQUEST_TYPE_SCALES:
|
|
|
2648 |
metrics->x_scale = (FT_Fixed)req->width;
|
|
|
2649 |
metrics->y_scale = (FT_Fixed)req->height;
|
|
|
2650 |
if ( !metrics->x_scale )
|
|
|
2651 |
metrics->x_scale = metrics->y_scale;
|
|
|
2652 |
else if ( !metrics->y_scale )
|
|
|
2653 |
metrics->y_scale = metrics->x_scale;
|
|
|
2654 |
goto Calculate_Ppem;
|
|
|
2655 |
|
|
|
2656 |
case FT_SIZE_REQUEST_TYPE_MAX:
|
|
|
2657 |
break;
|
|
|
2658 |
}
|
|
|
2659 |
|
|
|
2660 |
/* to be on the safe side */
|
|
|
2661 |
if ( w < 0 )
|
|
|
2662 |
w = -w;
|
|
|
2663 |
|
|
|
2664 |
if ( h < 0 )
|
|
|
2665 |
h = -h;
|
|
|
2666 |
|
|
|
2667 |
scaled_w = FT_REQUEST_WIDTH ( req );
|
|
|
2668 |
scaled_h = FT_REQUEST_HEIGHT( req );
|
|
|
2669 |
|
|
|
2670 |
/* determine scales */
|
|
|
2671 |
if ( req->width )
|
|
|
2672 |
{
|
|
|
2673 |
metrics->x_scale = FT_DivFix( scaled_w, w );
|
|
|
2674 |
|
|
|
2675 |
if ( req->height )
|
|
|
2676 |
{
|
|
|
2677 |
metrics->y_scale = FT_DivFix( scaled_h, h );
|
|
|
2678 |
|
|
|
2679 |
if ( req->type == FT_SIZE_REQUEST_TYPE_CELL )
|
|
|
2680 |
{
|
|
|
2681 |
if ( metrics->y_scale > metrics->x_scale )
|
|
|
2682 |
metrics->y_scale = metrics->x_scale;
|
|
|
2683 |
else
|
|
|
2684 |
metrics->x_scale = metrics->y_scale;
|
|
|
2685 |
}
|
|
|
2686 |
}
|
|
|
2687 |
else
|
|
|
2688 |
{
|
|
|
2689 |
metrics->y_scale = metrics->x_scale;
|
|
|
2690 |
scaled_h = FT_MulDiv( scaled_w, h, w );
|
|
|
2691 |
}
|
|
|
2692 |
}
|
|
|
2693 |
else
|
|
|
2694 |
{
|
|
|
2695 |
metrics->x_scale = metrics->y_scale = FT_DivFix( scaled_h, h );
|
|
|
2696 |
scaled_w = FT_MulDiv( scaled_h, w, h );
|
|
|
2697 |
}
|
|
|
2698 |
|
|
|
2699 |
Calculate_Ppem:
|
|
|
2700 |
/* calculate the ppems */
|
|
|
2701 |
if ( req->type != FT_SIZE_REQUEST_TYPE_NOMINAL )
|
|
|
2702 |
{
|
|
|
2703 |
scaled_w = FT_MulFix( face->units_per_EM, metrics->x_scale );
|
|
|
2704 |
scaled_h = FT_MulFix( face->units_per_EM, metrics->y_scale );
|
|
|
2705 |
}
|
|
|
2706 |
|
|
|
2707 |
metrics->x_ppem = (FT_UShort)( ( scaled_w + 32 ) >> 6 );
|
|
|
2708 |
metrics->y_ppem = (FT_UShort)( ( scaled_h + 32 ) >> 6 );
|
|
|
2709 |
|
|
|
2710 |
ft_recompute_scaled_metrics( face, metrics );
|
|
|
2711 |
}
|
|
|
2712 |
else
|
|
|
2713 |
{
|
|
|
2714 |
FT_ZERO( metrics );
|
|
|
2715 |
metrics->x_scale = 1L << 16;
|
|
|
2716 |
metrics->y_scale = 1L << 16;
|
|
|
2717 |
}
|
|
|
2718 |
}
|
|
|
2719 |
|
|
|
2720 |
|
|
|
2721 |
/* documentation is in freetype.h */
|
|
|
2722 |
|
|
|
2723 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2724 |
FT_Select_Size( FT_Face face,
|
|
|
2725 |
FT_Int strike_index )
|
|
|
2726 |
{
|
|
|
2727 |
FT_Driver_Class clazz;
|
|
|
2728 |
|
|
|
2729 |
|
|
|
2730 |
if ( !face || !FT_HAS_FIXED_SIZES( face ) )
|
|
|
2731 |
return FT_Err_Invalid_Face_Handle;
|
|
|
2732 |
|
|
|
2733 |
if ( strike_index < 0 || strike_index >= face->num_fixed_sizes )
|
|
|
2734 |
return FT_Err_Invalid_Argument;
|
|
|
2735 |
|
|
|
2736 |
clazz = face->driver->clazz;
|
|
|
2737 |
|
|
|
2738 |
if ( clazz->select_size )
|
|
|
2739 |
return clazz->select_size( face->size, (FT_ULong)strike_index );
|
|
|
2740 |
|
|
|
2741 |
FT_Select_Metrics( face, (FT_ULong)strike_index );
|
|
|
2742 |
|
|
|
2743 |
return FT_Err_Ok;
|
|
|
2744 |
}
|
|
|
2745 |
|
|
|
2746 |
|
|
|
2747 |
/* documentation is in freetype.h */
|
|
|
2748 |
|
|
|
2749 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2750 |
FT_Request_Size( FT_Face face,
|
|
|
2751 |
FT_Size_Request req )
|
|
|
2752 |
{
|
|
|
2753 |
FT_Driver_Class clazz;
|
|
|
2754 |
FT_ULong strike_index;
|
|
|
2755 |
|
|
|
2756 |
|
|
|
2757 |
if ( !face )
|
|
|
2758 |
return FT_Err_Invalid_Face_Handle;
|
|
|
2759 |
|
|
|
2760 |
if ( !req || req->width < 0 || req->height < 0 ||
|
|
|
2761 |
req->type >= FT_SIZE_REQUEST_TYPE_MAX )
|
|
|
2762 |
return FT_Err_Invalid_Argument;
|
|
|
2763 |
|
|
|
2764 |
clazz = face->driver->clazz;
|
|
|
2765 |
|
|
|
2766 |
if ( clazz->request_size )
|
|
|
2767 |
return clazz->request_size( face->size, req );
|
|
|
2768 |
|
|
|
2769 |
/*
|
|
|
2770 |
* The reason that a driver doesn't have `request_size' defined is
|
|
|
2771 |
* either that the scaling here suffices or that the supported formats
|
|
|
2772 |
* are bitmap-only and size matching is not implemented.
|
|
|
2773 |
*
|
|
|
2774 |
* In the latter case, a simple size matching is done.
|
|
|
2775 |
*/
|
|
|
2776 |
if ( !FT_IS_SCALABLE( face ) && FT_HAS_FIXED_SIZES( face ) )
|
|
|
2777 |
{
|
|
|
2778 |
FT_Error error;
|
|
|
2779 |
|
|
|
2780 |
|
|
|
2781 |
error = FT_Match_Size( face, req, 0, &strike_index );
|
|
|
2782 |
if ( error )
|
|
|
2783 |
return error;
|
|
|
2784 |
|
|
|
2785 |
FT_TRACE3(( "FT_Request_Size: bitmap strike %lu matched\n",
|
|
|
2786 |
strike_index ));
|
|
|
2787 |
|
|
|
2788 |
return FT_Select_Size( face, (FT_Int)strike_index );
|
|
|
2789 |
}
|
|
|
2790 |
|
|
|
2791 |
FT_Request_Metrics( face, req );
|
|
|
2792 |
|
|
|
2793 |
return FT_Err_Ok;
|
|
|
2794 |
}
|
|
|
2795 |
|
|
|
2796 |
|
|
|
2797 |
/* documentation is in freetype.h */
|
|
|
2798 |
|
|
|
2799 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2800 |
FT_Set_Char_Size( FT_Face face,
|
|
|
2801 |
FT_F26Dot6 char_width,
|
|
|
2802 |
FT_F26Dot6 char_height,
|
|
|
2803 |
FT_UInt horz_resolution,
|
|
|
2804 |
FT_UInt vert_resolution )
|
|
|
2805 |
{
|
|
|
2806 |
FT_Size_RequestRec req;
|
|
|
2807 |
|
|
|
2808 |
|
|
|
2809 |
if ( !char_width )
|
|
|
2810 |
char_width = char_height;
|
|
|
2811 |
else if ( !char_height )
|
|
|
2812 |
char_height = char_width;
|
|
|
2813 |
|
|
|
2814 |
if ( !horz_resolution )
|
|
|
2815 |
horz_resolution = vert_resolution;
|
|
|
2816 |
else if ( !vert_resolution )
|
|
|
2817 |
vert_resolution = horz_resolution;
|
|
|
2818 |
|
|
|
2819 |
if ( char_width < 1 * 64 )
|
|
|
2820 |
char_width = 1 * 64;
|
|
|
2821 |
if ( char_height < 1 * 64 )
|
|
|
2822 |
char_height = 1 * 64;
|
|
|
2823 |
|
|
|
2824 |
if ( !horz_resolution )
|
|
|
2825 |
horz_resolution = vert_resolution = 72;
|
|
|
2826 |
|
|
|
2827 |
req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
|
|
|
2828 |
req.width = char_width;
|
|
|
2829 |
req.height = char_height;
|
|
|
2830 |
req.horiResolution = horz_resolution;
|
|
|
2831 |
req.vertResolution = vert_resolution;
|
|
|
2832 |
|
|
|
2833 |
return FT_Request_Size( face, &req );
|
|
|
2834 |
}
|
|
|
2835 |
|
|
|
2836 |
|
|
|
2837 |
/* documentation is in freetype.h */
|
|
|
2838 |
|
|
|
2839 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2840 |
FT_Set_Pixel_Sizes( FT_Face face,
|
|
|
2841 |
FT_UInt pixel_width,
|
|
|
2842 |
FT_UInt pixel_height )
|
|
|
2843 |
{
|
|
|
2844 |
FT_Size_RequestRec req;
|
|
|
2845 |
|
|
|
2846 |
|
|
|
2847 |
if ( pixel_width == 0 )
|
|
|
2848 |
pixel_width = pixel_height;
|
|
|
2849 |
else if ( pixel_height == 0 )
|
|
|
2850 |
pixel_height = pixel_width;
|
|
|
2851 |
|
|
|
2852 |
if ( pixel_width < 1 )
|
|
|
2853 |
pixel_width = 1;
|
|
|
2854 |
if ( pixel_height < 1 )
|
|
|
2855 |
pixel_height = 1;
|
|
|
2856 |
|
|
|
2857 |
/* use `>=' to avoid potential compiler warning on 16bit platforms */
|
|
|
2858 |
if ( pixel_width >= 0xFFFFU )
|
|
|
2859 |
pixel_width = 0xFFFFU;
|
|
|
2860 |
if ( pixel_height >= 0xFFFFU )
|
|
|
2861 |
pixel_height = 0xFFFFU;
|
|
|
2862 |
|
|
|
2863 |
req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
|
|
|
2864 |
req.width = pixel_width << 6;
|
|
|
2865 |
req.height = pixel_height << 6;
|
|
|
2866 |
req.horiResolution = 0;
|
|
|
2867 |
req.vertResolution = 0;
|
|
|
2868 |
|
|
|
2869 |
return FT_Request_Size( face, &req );
|
|
|
2870 |
}
|
|
|
2871 |
|
|
|
2872 |
|
|
|
2873 |
/* documentation is in freetype.h */
|
|
|
2874 |
|
|
|
2875 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2876 |
FT_Get_Kerning( FT_Face face,
|
|
|
2877 |
FT_UInt left_glyph,
|
|
|
2878 |
FT_UInt right_glyph,
|
|
|
2879 |
FT_UInt kern_mode,
|
|
|
2880 |
FT_Vector *akerning )
|
|
|
2881 |
{
|
|
|
2882 |
FT_Error error = FT_Err_Ok;
|
|
|
2883 |
FT_Driver driver;
|
|
|
2884 |
|
|
|
2885 |
|
|
|
2886 |
if ( !face )
|
|
|
2887 |
return FT_Err_Invalid_Face_Handle;
|
|
|
2888 |
|
|
|
2889 |
if ( !akerning )
|
|
|
2890 |
return FT_Err_Invalid_Argument;
|
|
|
2891 |
|
|
|
2892 |
driver = face->driver;
|
|
|
2893 |
|
|
|
2894 |
akerning->x = 0;
|
|
|
2895 |
akerning->y = 0;
|
|
|
2896 |
|
|
|
2897 |
if ( driver->clazz->get_kerning )
|
|
|
2898 |
{
|
|
|
2899 |
error = driver->clazz->get_kerning( face,
|
|
|
2900 |
left_glyph,
|
|
|
2901 |
right_glyph,
|
|
|
2902 |
akerning );
|
|
|
2903 |
if ( !error )
|
|
|
2904 |
{
|
|
|
2905 |
if ( kern_mode != FT_KERNING_UNSCALED )
|
|
|
2906 |
{
|
|
|
2907 |
akerning->x = FT_MulFix( akerning->x, face->size->metrics.x_scale );
|
|
|
2908 |
akerning->y = FT_MulFix( akerning->y, face->size->metrics.y_scale );
|
|
|
2909 |
|
|
|
2910 |
if ( kern_mode != FT_KERNING_UNFITTED )
|
|
|
2911 |
{
|
|
|
2912 |
/* we scale down kerning values for small ppem values */
|
|
|
2913 |
/* to avoid that rounding makes them too big. */
|
|
|
2914 |
/* `25' has been determined heuristically. */
|
|
|
2915 |
if ( face->size->metrics.x_ppem < 25 )
|
|
|
2916 |
akerning->x = FT_MulDiv( akerning->x,
|
|
|
2917 |
face->size->metrics.x_ppem, 25 );
|
|
|
2918 |
if ( face->size->metrics.y_ppem < 25 )
|
|
|
2919 |
akerning->y = FT_MulDiv( akerning->y,
|
|
|
2920 |
face->size->metrics.y_ppem, 25 );
|
|
|
2921 |
|
|
|
2922 |
akerning->x = FT_PIX_ROUND( akerning->x );
|
|
|
2923 |
akerning->y = FT_PIX_ROUND( akerning->y );
|
|
|
2924 |
}
|
|
|
2925 |
}
|
|
|
2926 |
}
|
|
|
2927 |
}
|
|
|
2928 |
|
|
|
2929 |
return error;
|
|
|
2930 |
}
|
|
|
2931 |
|
|
|
2932 |
|
|
|
2933 |
/* documentation is in freetype.h */
|
|
|
2934 |
|
|
|
2935 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2936 |
FT_Get_Track_Kerning( FT_Face face,
|
|
|
2937 |
FT_Fixed point_size,
|
|
|
2938 |
FT_Int degree,
|
|
|
2939 |
FT_Fixed* akerning )
|
|
|
2940 |
{
|
|
|
2941 |
FT_Service_Kerning service;
|
|
|
2942 |
FT_Error error = FT_Err_Ok;
|
|
|
2943 |
|
|
|
2944 |
|
|
|
2945 |
if ( !face )
|
|
|
2946 |
return FT_Err_Invalid_Face_Handle;
|
|
|
2947 |
|
|
|
2948 |
if ( !akerning )
|
|
|
2949 |
return FT_Err_Invalid_Argument;
|
|
|
2950 |
|
|
|
2951 |
FT_FACE_FIND_SERVICE( face, service, KERNING );
|
|
|
2952 |
if ( !service )
|
|
|
2953 |
return FT_Err_Unimplemented_Feature;
|
|
|
2954 |
|
|
|
2955 |
error = service->get_track( face,
|
|
|
2956 |
point_size,
|
|
|
2957 |
degree,
|
|
|
2958 |
akerning );
|
|
|
2959 |
|
|
|
2960 |
return error;
|
|
|
2961 |
}
|
|
|
2962 |
|
|
|
2963 |
|
|
|
2964 |
/* documentation is in freetype.h */
|
|
|
2965 |
|
|
|
2966 |
FT_EXPORT_DEF( FT_Error )
|
|
|
2967 |
FT_Select_Charmap( FT_Face face,
|
|
|
2968 |
FT_Encoding encoding )
|
|
|
2969 |
{
|
|
|
2970 |
FT_CharMap* cur;
|
|
|
2971 |
FT_CharMap* limit;
|
|
|
2972 |
|
|
|
2973 |
|
|
|
2974 |
if ( !face )
|
|
|
2975 |
return FT_Err_Invalid_Face_Handle;
|
|
|
2976 |
|
|
|
2977 |
if ( encoding == FT_ENCODING_NONE )
|
|
|
2978 |
return FT_Err_Invalid_Argument;
|
|
|
2979 |
|
|
|
2980 |
/* FT_ENCODING_UNICODE is special. We try to find the `best' Unicode */
|
|
|
2981 |
/* charmap available, i.e., one with UCS-4 characters, if possible. */
|
|
|
2982 |
/* */
|
|
|
2983 |
/* This is done by find_unicode_charmap() above, to share code. */
|
|
|
2984 |
if ( encoding == FT_ENCODING_UNICODE )
|
|
|
2985 |
return find_unicode_charmap( face );
|
|
|
2986 |
|
|
|
2987 |
cur = face->charmaps;
|
|
|
2988 |
if ( !cur )
|
|
|
2989 |
return FT_Err_Invalid_CharMap_Handle;
|
|
|
2990 |
|
|
|
2991 |
limit = cur + face->num_charmaps;
|
|
|
2992 |
|
|
|
2993 |
for ( ; cur < limit; cur++ )
|
|
|
2994 |
{
|
|
|
2995 |
if ( cur[0]->encoding == encoding )
|
|
|
2996 |
{
|
|
|
2997 |
#ifdef FT_MAX_CHARMAP_CACHEABLE
|
|
|
2998 |
if ( cur - face->charmaps > FT_MAX_CHARMAP_CACHEABLE )
|
|
|
2999 |
{
|
|
|
3000 |
FT_ERROR(( "FT_Select_Charmap: requested charmap is found (%d), "
|
|
|
3001 |
"but in too late position to cache\n",
|
|
|
3002 |
cur - face->charmaps ));
|
|
|
3003 |
continue;
|
|
|
3004 |
}
|
|
|
3005 |
#endif
|
|
|
3006 |
face->charmap = cur[0];
|
|
|
3007 |
return 0;
|
|
|
3008 |
}
|
|
|
3009 |
}
|
|
|
3010 |
|
|
|
3011 |
return FT_Err_Invalid_Argument;
|
|
|
3012 |
}
|
|
|
3013 |
|
|
|
3014 |
|
|
|
3015 |
/* documentation is in freetype.h */
|
|
|
3016 |
|
|
|
3017 |
FT_EXPORT_DEF( FT_Error )
|
|
|
3018 |
FT_Set_Charmap( FT_Face face,
|
|
|
3019 |
FT_CharMap charmap )
|
|
|
3020 |
{
|
|
|
3021 |
FT_CharMap* cur;
|
|
|
3022 |
FT_CharMap* limit;
|
|
|
3023 |
|
|
|
3024 |
|
|
|
3025 |
if ( !face )
|
|
|
3026 |
return FT_Err_Invalid_Face_Handle;
|
|
|
3027 |
|
|
|
3028 |
cur = face->charmaps;
|
|
|
3029 |
if ( !cur )
|
|
|
3030 |
return FT_Err_Invalid_CharMap_Handle;
|
|
|
3031 |
if ( FT_Get_CMap_Format( charmap ) == 14 )
|
|
|
3032 |
return FT_Err_Invalid_Argument;
|
|
|
3033 |
|
|
|
3034 |
limit = cur + face->num_charmaps;
|
|
|
3035 |
|
|
|
3036 |
for ( ; cur < limit; cur++ )
|
|
|
3037 |
{
|
|
|
3038 |
if ( cur[0] == charmap )
|
|
|
3039 |
{
|
|
|
3040 |
#ifdef FT_MAX_CHARMAP_CACHEABLE
|
|
|
3041 |
if ( cur - face->charmaps > FT_MAX_CHARMAP_CACHEABLE )
|
|
|
3042 |
{
|
|
|
3043 |
FT_ERROR(( "FT_Set_Charmap: requested charmap is found (%d), "
|
|
|
3044 |
"but in too late position to cache\n",
|
|
|
3045 |
cur - face->charmaps ));
|
|
|
3046 |
continue;
|
|
|
3047 |
}
|
|
|
3048 |
#endif
|
|
|
3049 |
face->charmap = cur[0];
|
|
|
3050 |
return 0;
|
|
|
3051 |
}
|
|
|
3052 |
}
|
|
|
3053 |
return FT_Err_Invalid_Argument;
|
|
|
3054 |
}
|
|
|
3055 |
|
|
|
3056 |
|
|
|
3057 |
/* documentation is in freetype.h */
|
|
|
3058 |
|
|
|
3059 |
FT_EXPORT_DEF( FT_Int )
|
|
|
3060 |
FT_Get_Charmap_Index( FT_CharMap charmap )
|
|
|
3061 |
{
|
|
|
3062 |
FT_Int i;
|
|
|
3063 |
|
|
|
3064 |
|
|
|
3065 |
if ( !charmap || !charmap->face )
|
|
|
3066 |
return -1;
|
|
|
3067 |
|
|
|
3068 |
for ( i = 0; i < charmap->face->num_charmaps; i++ )
|
|
|
3069 |
if ( charmap->face->charmaps[i] == charmap )
|
|
|
3070 |
break;
|
|
|
3071 |
|
|
|
3072 |
FT_ASSERT( i < charmap->face->num_charmaps );
|
|
|
3073 |
|
|
|
3074 |
#ifdef FT_MAX_CHARMAP_CACHEABLE
|
|
|
3075 |
if ( i > FT_MAX_CHARMAP_CACHEABLE )
|
|
|
3076 |
{
|
|
|
3077 |
FT_ERROR(( "FT_Get_Charmap_Index: requested charmap is found (%d), "
|
|
|
3078 |
"but in too late position to cache\n",
|
|
|
3079 |
i ));
|
|
|
3080 |
return -i;
|
|
|
3081 |
}
|
|
|
3082 |
#endif
|
|
|
3083 |
return i;
|
|
|
3084 |
}
|
|
|
3085 |
|
|
|
3086 |
|
|
|
3087 |
static void
|
|
|
3088 |
ft_cmap_done_internal( FT_CMap cmap )
|
|
|
3089 |
{
|
|
|
3090 |
FT_CMap_Class clazz = cmap->clazz;
|
|
|
3091 |
FT_Face face = cmap->charmap.face;
|
|
|
3092 |
FT_Memory memory = FT_FACE_MEMORY(face);
|
|
|
3093 |
|
|
|
3094 |
|
|
|
3095 |
if ( clazz->done )
|
|
|
3096 |
clazz->done( cmap );
|
|
|
3097 |
|
|
|
3098 |
FT_FREE( cmap );
|
|
|
3099 |
}
|
|
|
3100 |
|
|
|
3101 |
|
|
|
3102 |
FT_BASE_DEF( void )
|
|
|
3103 |
FT_CMap_Done( FT_CMap cmap )
|
|
|
3104 |
{
|
|
|
3105 |
if ( cmap )
|
|
|
3106 |
{
|
|
|
3107 |
FT_Face face = cmap->charmap.face;
|
|
|
3108 |
FT_Memory memory = FT_FACE_MEMORY( face );
|
|
|
3109 |
FT_Error error;
|
|
|
3110 |
FT_Int i, j;
|
|
|
3111 |
|
|
|
3112 |
|
|
|
3113 |
for ( i = 0; i < face->num_charmaps; i++ )
|
|
|
3114 |
{
|
|
|
3115 |
if ( (FT_CMap)face->charmaps[i] == cmap )
|
|
|
3116 |
{
|
|
|
3117 |
FT_CharMap last_charmap = face->charmaps[face->num_charmaps - 1];
|
|
|
3118 |
|
|
|
3119 |
|
|
|
3120 |
if ( FT_RENEW_ARRAY( face->charmaps,
|
|
|
3121 |
face->num_charmaps,
|
|
|
3122 |
face->num_charmaps - 1 ) )
|
|
|
3123 |
return;
|
|
|
3124 |
|
|
|
3125 |
/* remove it from our list of charmaps */
|
|
|
3126 |
for ( j = i + 1; j < face->num_charmaps; j++ )
|
|
|
3127 |
{
|
|
|
3128 |
if ( j == face->num_charmaps - 1 )
|
|
|
3129 |
face->charmaps[j - 1] = last_charmap;
|
|
|
3130 |
else
|
|
|
3131 |
face->charmaps[j - 1] = face->charmaps[j];
|
|
|
3132 |
}
|
|
|
3133 |
|
|
|
3134 |
face->num_charmaps--;
|
|
|
3135 |
|
|
|
3136 |
if ( (FT_CMap)face->charmap == cmap )
|
|
|
3137 |
face->charmap = NULL;
|
|
|
3138 |
|
|
|
3139 |
ft_cmap_done_internal( cmap );
|
|
|
3140 |
|
|
|
3141 |
break;
|
|
|
3142 |
}
|
|
|
3143 |
}
|
|
|
3144 |
}
|
|
|
3145 |
}
|
|
|
3146 |
|
|
|
3147 |
|
|
|
3148 |
FT_BASE_DEF( FT_Error )
|
|
|
3149 |
FT_CMap_New( FT_CMap_Class clazz,
|
|
|
3150 |
FT_Pointer init_data,
|
|
|
3151 |
FT_CharMap charmap,
|
|
|
3152 |
FT_CMap *acmap )
|
|
|
3153 |
{
|
|
|
3154 |
FT_Error error = FT_Err_Ok;
|
|
|
3155 |
FT_Face face;
|
|
|
3156 |
FT_Memory memory;
|
|
|
3157 |
FT_CMap cmap;
|
|
|
3158 |
|
|
|
3159 |
|
|
|
3160 |
if ( clazz == NULL || charmap == NULL || charmap->face == NULL )
|
|
|
3161 |
return FT_Err_Invalid_Argument;
|
|
|
3162 |
|
|
|
3163 |
face = charmap->face;
|
|
|
3164 |
memory = FT_FACE_MEMORY( face );
|
|
|
3165 |
|
|
|
3166 |
if ( !FT_ALLOC( cmap, clazz->size ) )
|
|
|
3167 |
{
|
|
|
3168 |
cmap->charmap = *charmap;
|
|
|
3169 |
cmap->clazz = clazz;
|
|
|
3170 |
|
|
|
3171 |
if ( clazz->init )
|
|
|
3172 |
{
|
|
|
3173 |
error = clazz->init( cmap, init_data );
|
|
|
3174 |
if ( error )
|
|
|
3175 |
goto Fail;
|
|
|
3176 |
}
|
|
|
3177 |
|
|
|
3178 |
/* add it to our list of charmaps */
|
|
|
3179 |
if ( FT_RENEW_ARRAY( face->charmaps,
|
|
|
3180 |
face->num_charmaps,
|
|
|
3181 |
face->num_charmaps + 1 ) )
|
|
|
3182 |
goto Fail;
|
|
|
3183 |
|
|
|
3184 |
face->charmaps[face->num_charmaps++] = (FT_CharMap)cmap;
|
|
|
3185 |
}
|
|
|
3186 |
|
|
|
3187 |
Exit:
|
|
|
3188 |
if ( acmap )
|
|
|
3189 |
*acmap = cmap;
|
|
|
3190 |
|
|
|
3191 |
return error;
|
|
|
3192 |
|
|
|
3193 |
Fail:
|
|
|
3194 |
ft_cmap_done_internal( cmap );
|
|
|
3195 |
cmap = NULL;
|
|
|
3196 |
goto Exit;
|
|
|
3197 |
}
|
|
|
3198 |
|
|
|
3199 |
|
|
|
3200 |
/* documentation is in freetype.h */
|
|
|
3201 |
|
|
|
3202 |
FT_EXPORT_DEF( FT_UInt )
|
|
|
3203 |
FT_Get_Char_Index( FT_Face face,
|
|
|
3204 |
FT_ULong charcode )
|
|
|
3205 |
{
|
|
|
3206 |
FT_UInt result = 0;
|
|
|
3207 |
|
|
|
3208 |
|
|
|
3209 |
if ( face && face->charmap )
|
|
|
3210 |
{
|
|
|
3211 |
FT_CMap cmap = FT_CMAP( face->charmap );
|
|
|
3212 |
|
|
|
3213 |
|
|
|
3214 |
if ( charcode > 0xFFFFFFFFUL )
|
|
|
3215 |
{
|
|
|
3216 |
FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
|
|
|
3217 |
FT_TRACE1(( " 0x%x is truncated\n", charcode ));
|
|
|
3218 |
}
|
|
|
3219 |
result = cmap->clazz->char_index( cmap, (FT_UInt32)charcode );
|
|
|
3220 |
}
|
|
|
3221 |
return result;
|
|
|
3222 |
}
|
|
|
3223 |
|
|
|
3224 |
|
|
|
3225 |
/* documentation is in freetype.h */
|
|
|
3226 |
|
|
|
3227 |
FT_EXPORT_DEF( FT_ULong )
|
|
|
3228 |
FT_Get_First_Char( FT_Face face,
|
|
|
3229 |
FT_UInt *agindex )
|
|
|
3230 |
{
|
|
|
3231 |
FT_ULong result = 0;
|
|
|
3232 |
FT_UInt gindex = 0;
|
|
|
3233 |
|
|
|
3234 |
|
|
|
3235 |
if ( face && face->charmap && face->num_glyphs )
|
|
|
3236 |
{
|
|
|
3237 |
gindex = FT_Get_Char_Index( face, 0 );
|
|
|
3238 |
if ( gindex == 0 || gindex >= (FT_UInt)face->num_glyphs )
|
|
|
3239 |
result = FT_Get_Next_Char( face, 0, &gindex );
|
|
|
3240 |
}
|
|
|
3241 |
|
|
|
3242 |
if ( agindex )
|
|
|
3243 |
*agindex = gindex;
|
|
|
3244 |
|
|
|
3245 |
return result;
|
|
|
3246 |
}
|
|
|
3247 |
|
|
|
3248 |
|
|
|
3249 |
/* documentation is in freetype.h */
|
|
|
3250 |
|
|
|
3251 |
FT_EXPORT_DEF( FT_ULong )
|
|
|
3252 |
FT_Get_Next_Char( FT_Face face,
|
|
|
3253 |
FT_ULong charcode,
|
|
|
3254 |
FT_UInt *agindex )
|
|
|
3255 |
{
|
|
|
3256 |
FT_ULong result = 0;
|
|
|
3257 |
FT_UInt gindex = 0;
|
|
|
3258 |
|
|
|
3259 |
|
|
|
3260 |
if ( face && face->charmap && face->num_glyphs )
|
|
|
3261 |
{
|
|
|
3262 |
FT_UInt32 code = (FT_UInt32)charcode;
|
|
|
3263 |
FT_CMap cmap = FT_CMAP( face->charmap );
|
|
|
3264 |
|
|
|
3265 |
|
|
|
3266 |
do {
|
|
|
3267 |
gindex = cmap->clazz->char_next( cmap, &code );
|
|
|
3268 |
} while ( gindex >= (FT_UInt)face->num_glyphs );
|
|
|
3269 |
|
|
|
3270 |
result = ( gindex == 0 ) ? 0 : code;
|
|
|
3271 |
}
|
|
|
3272 |
|
|
|
3273 |
if ( agindex )
|
|
|
3274 |
*agindex = gindex;
|
|
|
3275 |
|
|
|
3276 |
return result;
|
|
|
3277 |
}
|
|
|
3278 |
|
|
|
3279 |
|
|
|
3280 |
/* documentation is in freetype.h */
|
|
|
3281 |
|
|
|
3282 |
FT_EXPORT_DEF( FT_UInt )
|
|
|
3283 |
FT_Face_GetCharVariantIndex( FT_Face face,
|
|
|
3284 |
FT_ULong charcode,
|
|
|
3285 |
FT_ULong variantSelector )
|
|
|
3286 |
{
|
|
|
3287 |
FT_UInt result = 0;
|
|
|
3288 |
|
|
|
3289 |
|
|
|
3290 |
if ( face && face->charmap &&
|
|
|
3291 |
face->charmap->encoding == FT_ENCODING_UNICODE )
|
|
|
3292 |
{
|
|
|
3293 |
FT_CharMap charmap = find_variant_selector_charmap( face );
|
|
|
3294 |
FT_CMap ucmap = FT_CMAP( face->charmap );
|
|
|
3295 |
|
|
|
3296 |
|
|
|
3297 |
if ( charmap != NULL )
|
|
|
3298 |
{
|
|
|
3299 |
FT_CMap vcmap = FT_CMAP( charmap );
|
|
|
3300 |
|
|
|
3301 |
|
|
|
3302 |
if ( charcode > 0xFFFFFFFFUL )
|
|
|
3303 |
{
|
|
|
3304 |
FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
|
|
|
3305 |
FT_TRACE1(( " 0x%x is truncated\n", charcode ));
|
|
|
3306 |
}
|
|
|
3307 |
if ( variantSelector > 0xFFFFFFFFUL )
|
|
|
3308 |
{
|
|
|
3309 |
FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" ));
|
|
|
3310 |
FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
|
|
|
3311 |
}
|
|
|
3312 |
|
|
|
3313 |
result = vcmap->clazz->char_var_index( vcmap, ucmap,
|
|
|
3314 |
(FT_UInt32)charcode,
|
|
|
3315 |
(FT_UInt32)variantSelector );
|
|
|
3316 |
}
|
|
|
3317 |
}
|
|
|
3318 |
|
|
|
3319 |
return result;
|
|
|
3320 |
}
|
|
|
3321 |
|
|
|
3322 |
|
|
|
3323 |
/* documentation is in freetype.h */
|
|
|
3324 |
|
|
|
3325 |
FT_EXPORT_DEF( FT_Int )
|
|
|
3326 |
FT_Face_GetCharVariantIsDefault( FT_Face face,
|
|
|
3327 |
FT_ULong charcode,
|
|
|
3328 |
FT_ULong variantSelector )
|
|
|
3329 |
{
|
|
|
3330 |
FT_Int result = -1;
|
|
|
3331 |
|
|
|
3332 |
|
|
|
3333 |
if ( face )
|
|
|
3334 |
{
|
|
|
3335 |
FT_CharMap charmap = find_variant_selector_charmap( face );
|
|
|
3336 |
|
|
|
3337 |
|
|
|
3338 |
if ( charmap != NULL )
|
|
|
3339 |
{
|
|
|
3340 |
FT_CMap vcmap = FT_CMAP( charmap );
|
|
|
3341 |
|
|
|
3342 |
|
|
|
3343 |
if ( charcode > 0xFFFFFFFFUL )
|
|
|
3344 |
{
|
|
|
3345 |
FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
|
|
|
3346 |
FT_TRACE1(( " 0x%x is truncated\n", charcode ));
|
|
|
3347 |
}
|
|
|
3348 |
if ( variantSelector > 0xFFFFFFFFUL )
|
|
|
3349 |
{
|
|
|
3350 |
FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" ));
|
|
|
3351 |
FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
|
|
|
3352 |
}
|
|
|
3353 |
|
|
|
3354 |
result = vcmap->clazz->char_var_default( vcmap,
|
|
|
3355 |
(FT_UInt32)charcode,
|
|
|
3356 |
(FT_UInt32)variantSelector );
|
|
|
3357 |
}
|
|
|
3358 |
}
|
|
|
3359 |
|
|
|
3360 |
return result;
|
|
|
3361 |
}
|
|
|
3362 |
|
|
|
3363 |
|
|
|
3364 |
/* documentation is in freetype.h */
|
|
|
3365 |
|
|
|
3366 |
FT_EXPORT_DEF( FT_UInt32* )
|
|
|
3367 |
FT_Face_GetVariantSelectors( FT_Face face )
|
|
|
3368 |
{
|
|
|
3369 |
FT_UInt32 *result = NULL;
|
|
|
3370 |
|
|
|
3371 |
|
|
|
3372 |
if ( face )
|
|
|
3373 |
{
|
|
|
3374 |
FT_CharMap charmap = find_variant_selector_charmap( face );
|
|
|
3375 |
|
|
|
3376 |
|
|
|
3377 |
if ( charmap != NULL )
|
|
|
3378 |
{
|
|
|
3379 |
FT_CMap vcmap = FT_CMAP( charmap );
|
|
|
3380 |
FT_Memory memory = FT_FACE_MEMORY( face );
|
|
|
3381 |
|
|
|
3382 |
|
|
|
3383 |
result = vcmap->clazz->variant_list( vcmap, memory );
|
|
|
3384 |
}
|
|
|
3385 |
}
|
|
|
3386 |
|
|
|
3387 |
return result;
|
|
|
3388 |
}
|
|
|
3389 |
|
|
|
3390 |
|
|
|
3391 |
/* documentation is in freetype.h */
|
|
|
3392 |
|
|
|
3393 |
FT_EXPORT_DEF( FT_UInt32* )
|
|
|
3394 |
FT_Face_GetVariantsOfChar( FT_Face face,
|
|
|
3395 |
FT_ULong charcode )
|
|
|
3396 |
{
|
|
|
3397 |
FT_UInt32 *result = NULL;
|
|
|
3398 |
|
|
|
3399 |
|
|
|
3400 |
if ( face )
|
|
|
3401 |
{
|
|
|
3402 |
FT_CharMap charmap = find_variant_selector_charmap( face );
|
|
|
3403 |
|
|
|
3404 |
|
|
|
3405 |
if ( charmap != NULL )
|
|
|
3406 |
{
|
|
|
3407 |
FT_CMap vcmap = FT_CMAP( charmap );
|
|
|
3408 |
FT_Memory memory = FT_FACE_MEMORY( face );
|
|
|
3409 |
|
|
|
3410 |
|
|
|
3411 |
if ( charcode > 0xFFFFFFFFUL )
|
|
|
3412 |
{
|
|
|
3413 |
FT_TRACE1(( "FT_Get_Char_Index: too large charcode" ));
|
|
|
3414 |
FT_TRACE1(( " 0x%x is truncated\n", charcode ));
|
|
|
3415 |
}
|
|
|
3416 |
|
|
|
3417 |
result = vcmap->clazz->charvariant_list( vcmap, memory,
|
|
|
3418 |
(FT_UInt32)charcode );
|
|
|
3419 |
}
|
|
|
3420 |
}
|
|
|
3421 |
return result;
|
|
|
3422 |
}
|
|
|
3423 |
|
|
|
3424 |
|
|
|
3425 |
/* documentation is in freetype.h */
|
|
|
3426 |
|
|
|
3427 |
FT_EXPORT_DEF( FT_UInt32* )
|
|
|
3428 |
FT_Face_GetCharsOfVariant( FT_Face face,
|
|
|
3429 |
FT_ULong variantSelector )
|
|
|
3430 |
{
|
|
|
3431 |
FT_UInt32 *result = NULL;
|
|
|
3432 |
|
|
|
3433 |
|
|
|
3434 |
if ( face )
|
|
|
3435 |
{
|
|
|
3436 |
FT_CharMap charmap = find_variant_selector_charmap( face );
|
|
|
3437 |
|
|
|
3438 |
|
|
|
3439 |
if ( charmap != NULL )
|
|
|
3440 |
{
|
|
|
3441 |
FT_CMap vcmap = FT_CMAP( charmap );
|
|
|
3442 |
FT_Memory memory = FT_FACE_MEMORY( face );
|
|
|
3443 |
|
|
|
3444 |
|
|
|
3445 |
if ( variantSelector > 0xFFFFFFFFUL )
|
|
|
3446 |
{
|
|
|
3447 |
FT_TRACE1(( "FT_Get_Char_Index: too large variantSelector" ));
|
|
|
3448 |
FT_TRACE1(( " 0x%x is truncated\n", variantSelector ));
|
|
|
3449 |
}
|
|
|
3450 |
|
|
|
3451 |
result = vcmap->clazz->variantchar_list( vcmap, memory,
|
|
|
3452 |
(FT_UInt32)variantSelector );
|
|
|
3453 |
}
|
|
|
3454 |
}
|
|
|
3455 |
|
|
|
3456 |
return result;
|
|
|
3457 |
}
|
|
|
3458 |
|
|
|
3459 |
|
|
|
3460 |
/* documentation is in freetype.h */
|
|
|
3461 |
|
|
|
3462 |
FT_EXPORT_DEF( FT_UInt )
|
|
|
3463 |
FT_Get_Name_Index( FT_Face face,
|
|
|
3464 |
FT_String* glyph_name )
|
|
|
3465 |
{
|
|
|
3466 |
FT_UInt result = 0;
|
|
|
3467 |
|
|
|
3468 |
|
|
|
3469 |
if ( face && FT_HAS_GLYPH_NAMES( face ) )
|
|
|
3470 |
{
|
|
|
3471 |
FT_Service_GlyphDict service;
|
|
|
3472 |
|
|
|
3473 |
|
|
|
3474 |
FT_FACE_LOOKUP_SERVICE( face,
|
|
|
3475 |
service,
|
|
|
3476 |
GLYPH_DICT );
|
|
|
3477 |
|
|
|
3478 |
if ( service && service->name_index )
|
|
|
3479 |
result = service->name_index( face, glyph_name );
|
|
|
3480 |
}
|
|
|
3481 |
|
|
|
3482 |
return result;
|
|
|
3483 |
}
|
|
|
3484 |
|
|
|
3485 |
|
|
|
3486 |
/* documentation is in freetype.h */
|
|
|
3487 |
|
|
|
3488 |
FT_EXPORT_DEF( FT_Error )
|
|
|
3489 |
FT_Get_Glyph_Name( FT_Face face,
|
|
|
3490 |
FT_UInt glyph_index,
|
|
|
3491 |
FT_Pointer buffer,
|
|
|
3492 |
FT_UInt buffer_max )
|
|
|
3493 |
{
|
|
|
3494 |
FT_Error error = FT_Err_Invalid_Argument;
|
|
|
3495 |
|
|
|
3496 |
|
|
|
3497 |
/* clean up buffer */
|
|
|
3498 |
if ( buffer && buffer_max > 0 )
|
|
|
3499 |
((FT_Byte*)buffer)[0] = 0;
|
|
|
3500 |
|
|
|
3501 |
if ( face &&
|
|
|
3502 |
(FT_Long)glyph_index <= face->num_glyphs &&
|
|
|
3503 |
FT_HAS_GLYPH_NAMES( face ) )
|
|
|
3504 |
{
|
|
|
3505 |
FT_Service_GlyphDict service;
|
|
|
3506 |
|
|
|
3507 |
|
|
|
3508 |
FT_FACE_LOOKUP_SERVICE( face,
|
|
|
3509 |
service,
|
|
|
3510 |
GLYPH_DICT );
|
|
|
3511 |
|
|
|
3512 |
if ( service && service->get_name )
|
|
|
3513 |
error = service->get_name( face, glyph_index, buffer, buffer_max );
|
|
|
3514 |
}
|
|
|
3515 |
|
|
|
3516 |
return error;
|
|
|
3517 |
}
|
|
|
3518 |
|
|
|
3519 |
|
|
|
3520 |
/* documentation is in freetype.h */
|
|
|
3521 |
|
|
|
3522 |
FT_EXPORT_DEF( const char* )
|
|
|
3523 |
FT_Get_Postscript_Name( FT_Face face )
|
|
|
3524 |
{
|
|
|
3525 |
const char* result = NULL;
|
|
|
3526 |
|
|
|
3527 |
|
|
|
3528 |
if ( !face )
|
|
|
3529 |
goto Exit;
|
|
|
3530 |
|
|
|
3531 |
if ( !result )
|
|
|
3532 |
{
|
|
|
3533 |
FT_Service_PsFontName service;
|
|
|
3534 |
|
|
|
3535 |
|
|
|
3536 |
FT_FACE_LOOKUP_SERVICE( face,
|
|
|
3537 |
service,
|
|
|
3538 |
POSTSCRIPT_FONT_NAME );
|
|
|
3539 |
|
|
|
3540 |
if ( service && service->get_ps_font_name )
|
|
|
3541 |
result = service->get_ps_font_name( face );
|
|
|
3542 |
}
|
|
|
3543 |
|
|
|
3544 |
Exit:
|
|
|
3545 |
return result;
|
|
|
3546 |
}
|
|
|
3547 |
|
|
|
3548 |
|
|
|
3549 |
/* documentation is in tttables.h */
|
|
|
3550 |
|
|
|
3551 |
FT_EXPORT_DEF( void* )
|
|
|
3552 |
FT_Get_Sfnt_Table( FT_Face face,
|
|
|
3553 |
FT_Sfnt_Tag tag )
|
|
|
3554 |
{
|
|
|
3555 |
void* table = 0;
|
|
|
3556 |
FT_Service_SFNT_Table service;
|
|
|
3557 |
|
|
|
3558 |
|
|
|
3559 |
if ( face && FT_IS_SFNT( face ) )
|
|
|
3560 |
{
|
|
|
3561 |
FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
|
|
|
3562 |
if ( service != NULL )
|
|
|
3563 |
table = service->get_table( face, tag );
|
|
|
3564 |
}
|
|
|
3565 |
|
|
|
3566 |
return table;
|
|
|
3567 |
}
|
|
|
3568 |
|
|
|
3569 |
|
|
|
3570 |
/* documentation is in tttables.h */
|
|
|
3571 |
|
|
|
3572 |
FT_EXPORT_DEF( FT_Error )
|
|
|
3573 |
FT_Load_Sfnt_Table( FT_Face face,
|
|
|
3574 |
FT_ULong tag,
|
|
|
3575 |
FT_Long offset,
|
|
|
3576 |
FT_Byte* buffer,
|
|
|
3577 |
FT_ULong* length )
|
|
|
3578 |
{
|
|
|
3579 |
FT_Service_SFNT_Table service;
|
|
|
3580 |
|
|
|
3581 |
|
|
|
3582 |
if ( !face || !FT_IS_SFNT( face ) )
|
|
|
3583 |
return FT_Err_Invalid_Face_Handle;
|
|
|
3584 |
|
|
|
3585 |
FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
|
|
|
3586 |
if ( service == NULL )
|
|
|
3587 |
return FT_Err_Unimplemented_Feature;
|
|
|
3588 |
|
|
|
3589 |
return service->load_table( face, tag, offset, buffer, length );
|
|
|
3590 |
}
|
|
|
3591 |
|
|
|
3592 |
|
|
|
3593 |
/* documentation is in tttables.h */
|
|
|
3594 |
|
|
|
3595 |
FT_EXPORT_DEF( FT_Error )
|
|
|
3596 |
FT_Sfnt_Table_Info( FT_Face face,
|
|
|
3597 |
FT_UInt table_index,
|
|
|
3598 |
FT_ULong *tag,
|
|
|
3599 |
FT_ULong *length )
|
|
|
3600 |
{
|
|
|
3601 |
FT_Service_SFNT_Table service;
|
|
|
3602 |
FT_ULong offset;
|
|
|
3603 |
|
|
|
3604 |
|
|
|
3605 |
if ( !face || !FT_IS_SFNT( face ) )
|
|
|
3606 |
return FT_Err_Invalid_Face_Handle;
|
|
|
3607 |
|
|
|
3608 |
FT_FACE_FIND_SERVICE( face, service, SFNT_TABLE );
|
|
|
3609 |
if ( service == NULL )
|
|
|
3610 |
return FT_Err_Unimplemented_Feature;
|
|
|
3611 |
|
|
|
3612 |
return service->table_info( face, table_index, tag, &offset, length );
|
|
|
3613 |
}
|
|
|
3614 |
|
|
|
3615 |
|
|
|
3616 |
/* documentation is in tttables.h */
|
|
|
3617 |
|
|
|
3618 |
FT_EXPORT_DEF( FT_ULong )
|
|
|
3619 |
FT_Get_CMap_Language_ID( FT_CharMap charmap )
|
|
|
3620 |
{
|
|
|
3621 |
FT_Service_TTCMaps service;
|
|
|
3622 |
FT_Face face;
|
|
|
3623 |
TT_CMapInfo cmap_info;
|
|
|
3624 |
|
|
|
3625 |
|
|
|
3626 |
if ( !charmap || !charmap->face )
|
|
|
3627 |
return 0;
|
|
|
3628 |
|
|
|
3629 |
face = charmap->face;
|
|
|
3630 |
FT_FACE_FIND_SERVICE( face, service, TT_CMAP );
|
|
|
3631 |
if ( service == NULL )
|
|
|
3632 |
return 0;
|
|
|
3633 |
if ( service->get_cmap_info( charmap, &cmap_info ))
|
|
|
3634 |
return 0;
|
|
|
3635 |
|
|
|
3636 |
return cmap_info.language;
|
|
|
3637 |
}
|
|
|
3638 |
|
|
|
3639 |
|
|
|
3640 |
/* documentation is in tttables.h */
|
|
|
3641 |
|
|
|
3642 |
FT_EXPORT_DEF( FT_Long )
|
|
|
3643 |
FT_Get_CMap_Format( FT_CharMap charmap )
|
|
|
3644 |
{
|
|
|
3645 |
FT_Service_TTCMaps service;
|
|
|
3646 |
FT_Face face;
|
|
|
3647 |
TT_CMapInfo cmap_info;
|
|
|
3648 |
|
|
|
3649 |
|
|
|
3650 |
if ( !charmap || !charmap->face )
|
|
|
3651 |
return -1;
|
|
|
3652 |
|
|
|
3653 |
face = charmap->face;
|
|
|
3654 |
FT_FACE_FIND_SERVICE( face, service, TT_CMAP );
|
|
|
3655 |
if ( service == NULL )
|
|
|
3656 |
return -1;
|
|
|
3657 |
if ( service->get_cmap_info( charmap, &cmap_info ))
|
|
|
3658 |
return -1;
|
|
|
3659 |
|
|
|
3660 |
return cmap_info.format;
|
|
|
3661 |
}
|
|
|
3662 |
|
|
|
3663 |
|
|
|
3664 |
/* documentation is in ftsizes.h */
|
|
|
3665 |
|
|
|
3666 |
FT_EXPORT_DEF( FT_Error )
|
|
|
3667 |
FT_Activate_Size( FT_Size size )
|
|
|
3668 |
{
|
|
|
3669 |
FT_Face face;
|
|
|
3670 |
|
|
|
3671 |
|
|
|
3672 |
if ( size == NULL )
|
|
|
3673 |
return FT_Err_Invalid_Argument;
|
|
|
3674 |
|
|
|
3675 |
face = size->face;
|
|
|
3676 |
if ( face == NULL || face->driver == NULL )
|
|
|
3677 |
return FT_Err_Invalid_Argument;
|
|
|
3678 |
|
|
|
3679 |
/* we don't need anything more complex than that; all size objects */
|
|
|
3680 |
/* are already listed by the face */
|
|
|
3681 |
face->size = size;
|
|
|
3682 |
|
|
|
3683 |
return FT_Err_Ok;
|
|
|
3684 |
}
|
|
|
3685 |
|
|
|
3686 |
|
|
|
3687 |
/*************************************************************************/
|
|
|
3688 |
/*************************************************************************/
|
|
|
3689 |
/*************************************************************************/
|
|
|
3690 |
/**** ****/
|
|
|
3691 |
/**** ****/
|
|
|
3692 |
/**** R E N D E R E R S ****/
|
|
|
3693 |
/**** ****/
|
|
|
3694 |
/**** ****/
|
|
|
3695 |
/*************************************************************************/
|
|
|
3696 |
/*************************************************************************/
|
|
|
3697 |
/*************************************************************************/
|
|
|
3698 |
|
|
|
3699 |
/* lookup a renderer by glyph format in the library's list */
|
|
|
3700 |
FT_BASE_DEF( FT_Renderer )
|
|
|
3701 |
FT_Lookup_Renderer( FT_Library library,
|
|
|
3702 |
FT_Glyph_Format format,
|
|
|
3703 |
FT_ListNode* node )
|
|
|
3704 |
{
|
|
|
3705 |
FT_ListNode cur;
|
|
|
3706 |
FT_Renderer result = 0;
|
|
|
3707 |
|
|
|
3708 |
|
|
|
3709 |
if ( !library )
|
|
|
3710 |
goto Exit;
|
|
|
3711 |
|
|
|
3712 |
cur = library->renderers.head;
|
|
|
3713 |
|
|
|
3714 |
if ( node )
|
|
|
3715 |
{
|
|
|
3716 |
if ( *node )
|
|
|
3717 |
cur = (*node)->next;
|
|
|
3718 |
*node = 0;
|
|
|
3719 |
}
|
|
|
3720 |
|
|
|
3721 |
while ( cur )
|
|
|
3722 |
{
|
|
|
3723 |
FT_Renderer renderer = FT_RENDERER( cur->data );
|
|
|
3724 |
|
|
|
3725 |
|
|
|
3726 |
if ( renderer->glyph_format == format )
|
|
|
3727 |
{
|
|
|
3728 |
if ( node )
|
|
|
3729 |
*node = cur;
|
|
|
3730 |
|
|
|
3731 |
result = renderer;
|
|
|
3732 |
break;
|
|
|
3733 |
}
|
|
|
3734 |
cur = cur->next;
|
|
|
3735 |
}
|
|
|
3736 |
|
|
|
3737 |
Exit:
|
|
|
3738 |
return result;
|
|
|
3739 |
}
|
|
|
3740 |
|
|
|
3741 |
|
|
|
3742 |
static FT_Renderer
|
|
|
3743 |
ft_lookup_glyph_renderer( FT_GlyphSlot slot )
|
|
|
3744 |
{
|
|
|
3745 |
FT_Face face = slot->face;
|
|
|
3746 |
FT_Library library = FT_FACE_LIBRARY( face );
|
|
|
3747 |
FT_Renderer result = library->cur_renderer;
|
|
|
3748 |
|
|
|
3749 |
|
|
|
3750 |
if ( !result || result->glyph_format != slot->format )
|
|
|
3751 |
result = FT_Lookup_Renderer( library, slot->format, 0 );
|
|
|
3752 |
|
|
|
3753 |
return result;
|
|
|
3754 |
}
|
|
|
3755 |
|
|
|
3756 |
|
|
|
3757 |
static void
|
|
|
3758 |
ft_set_current_renderer( FT_Library library )
|
|
|
3759 |
{
|
|
|
3760 |
FT_Renderer renderer;
|
|
|
3761 |
|
|
|
3762 |
|
|
|
3763 |
renderer = FT_Lookup_Renderer( library, FT_GLYPH_FORMAT_OUTLINE, 0 );
|
|
|
3764 |
library->cur_renderer = renderer;
|
|
|
3765 |
}
|
|
|
3766 |
|
|
|
3767 |
|
|
|
3768 |
static FT_Error
|
|
|
3769 |
ft_add_renderer( FT_Module module )
|
|
|
3770 |
{
|
|
|
3771 |
FT_Library library = module->library;
|
|
|
3772 |
FT_Memory memory = library->memory;
|
|
|
3773 |
FT_Error error;
|
|
|
3774 |
FT_ListNode node = NULL;
|
|
|
3775 |
|
|
|
3776 |
|
|
|
3777 |
if ( FT_NEW( node ) )
|
|
|
3778 |
goto Exit;
|
|
|
3779 |
|
|
|
3780 |
{
|
|
|
3781 |
FT_Renderer render = FT_RENDERER( module );
|
|
|
3782 |
FT_Renderer_Class* clazz = (FT_Renderer_Class*)module->clazz;
|
|
|
3783 |
|
|
|
3784 |
|
|
|
3785 |
render->clazz = clazz;
|
|
|
3786 |
render->glyph_format = clazz->glyph_format;
|
|
|
3787 |
|
|
|
3788 |
/* allocate raster object if needed */
|
|
|
3789 |
if ( clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
|
|
|
3790 |
clazz->raster_class->raster_new )
|
|
|
3791 |
{
|
|
|
3792 |
error = clazz->raster_class->raster_new( memory, &render->raster );
|
|
|
3793 |
if ( error )
|
|
|
3794 |
goto Fail;
|
|
|
3795 |
|
|
|
3796 |
render->raster_render = clazz->raster_class->raster_render;
|
|
|
3797 |
render->render = clazz->render_glyph;
|
|
|
3798 |
}
|
|
|
3799 |
|
|
|
3800 |
/* add to list */
|
|
|
3801 |
node->data = module;
|
|
|
3802 |
FT_List_Add( &library->renderers, node );
|
|
|
3803 |
|
|
|
3804 |
ft_set_current_renderer( library );
|
|
|
3805 |
}
|
|
|
3806 |
|
|
|
3807 |
Fail:
|
|
|
3808 |
if ( error )
|
|
|
3809 |
FT_FREE( node );
|
|
|
3810 |
|
|
|
3811 |
Exit:
|
|
|
3812 |
return error;
|
|
|
3813 |
}
|
|
|
3814 |
|
|
|
3815 |
|
|
|
3816 |
static void
|
|
|
3817 |
ft_remove_renderer( FT_Module module )
|
|
|
3818 |
{
|
|
|
3819 |
FT_Library library = module->library;
|
|
|
3820 |
FT_Memory memory = library->memory;
|
|
|
3821 |
FT_ListNode node;
|
|
|
3822 |
|
|
|
3823 |
|
|
|
3824 |
node = FT_List_Find( &library->renderers, module );
|
|
|
3825 |
if ( node )
|
|
|
3826 |
{
|
|
|
3827 |
FT_Renderer render = FT_RENDERER( module );
|
|
|
3828 |
|
|
|
3829 |
|
|
|
3830 |
/* release raster object, if any */
|
|
|
3831 |
if ( render->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
|
|
|
3832 |
render->raster )
|
|
|
3833 |
render->clazz->raster_class->raster_done( render->raster );
|
|
|
3834 |
|
|
|
3835 |
/* remove from list */
|
|
|
3836 |
FT_List_Remove( &library->renderers, node );
|
|
|
3837 |
FT_FREE( node );
|
|
|
3838 |
|
|
|
3839 |
ft_set_current_renderer( library );
|
|
|
3840 |
}
|
|
|
3841 |
}
|
|
|
3842 |
|
|
|
3843 |
|
|
|
3844 |
/* documentation is in ftrender.h */
|
|
|
3845 |
|
|
|
3846 |
FT_EXPORT_DEF( FT_Renderer )
|
|
|
3847 |
FT_Get_Renderer( FT_Library library,
|
|
|
3848 |
FT_Glyph_Format format )
|
|
|
3849 |
{
|
|
|
3850 |
/* test for valid `library' delayed to FT_Lookup_Renderer() */
|
|
|
3851 |
|
|
|
3852 |
return FT_Lookup_Renderer( library, format, 0 );
|
|
|
3853 |
}
|
|
|
3854 |
|
|
|
3855 |
|
|
|
3856 |
/* documentation is in ftrender.h */
|
|
|
3857 |
|
|
|
3858 |
FT_EXPORT_DEF( FT_Error )
|
|
|
3859 |
FT_Set_Renderer( FT_Library library,
|
|
|
3860 |
FT_Renderer renderer,
|
|
|
3861 |
FT_UInt num_params,
|
|
|
3862 |
FT_Parameter* parameters )
|
|
|
3863 |
{
|
|
|
3864 |
FT_ListNode node;
|
|
|
3865 |
FT_Error error = FT_Err_Ok;
|
|
|
3866 |
|
|
|
3867 |
|
|
|
3868 |
if ( !library )
|
|
|
3869 |
return FT_Err_Invalid_Library_Handle;
|
|
|
3870 |
|
|
|
3871 |
if ( !renderer )
|
|
|
3872 |
return FT_Err_Invalid_Argument;
|
|
|
3873 |
|
|
|
3874 |
node = FT_List_Find( &library->renderers, renderer );
|
|
|
3875 |
if ( !node )
|
|
|
3876 |
{
|
|
|
3877 |
error = FT_Err_Invalid_Argument;
|
|
|
3878 |
goto Exit;
|
|
|
3879 |
}
|
|
|
3880 |
|
|
|
3881 |
FT_List_Up( &library->renderers, node );
|
|
|
3882 |
|
|
|
3883 |
if ( renderer->glyph_format == FT_GLYPH_FORMAT_OUTLINE )
|
|
|
3884 |
library->cur_renderer = renderer;
|
|
|
3885 |
|
|
|
3886 |
if ( num_params > 0 )
|
|
|
3887 |
{
|
|
|
3888 |
FT_Renderer_SetModeFunc set_mode = renderer->clazz->set_mode;
|
|
|
3889 |
|
|
|
3890 |
|
|
|
3891 |
for ( ; num_params > 0; num_params-- )
|
|
|
3892 |
{
|
|
|
3893 |
error = set_mode( renderer, parameters->tag, parameters->data );
|
|
|
3894 |
if ( error )
|
|
|
3895 |
break;
|
|
|
3896 |
parameters++;
|
|
|
3897 |
}
|
|
|
3898 |
}
|
|
|
3899 |
|
|
|
3900 |
Exit:
|
|
|
3901 |
return error;
|
|
|
3902 |
}
|
|
|
3903 |
|
|
|
3904 |
|
|
|
3905 |
FT_BASE_DEF( FT_Error )
|
|
|
3906 |
FT_Render_Glyph_Internal( FT_Library library,
|
|
|
3907 |
FT_GlyphSlot slot,
|
|
|
3908 |
FT_Render_Mode render_mode )
|
|
|
3909 |
{
|
|
|
3910 |
FT_Error error = FT_Err_Ok;
|
|
|
3911 |
FT_Renderer renderer;
|
|
|
3912 |
|
|
|
3913 |
|
|
|
3914 |
/* if it is already a bitmap, no need to do anything */
|
|
|
3915 |
switch ( slot->format )
|
|
|
3916 |
{
|
|
|
3917 |
case FT_GLYPH_FORMAT_BITMAP: /* already a bitmap, don't do anything */
|
|
|
3918 |
break;
|
|
|
3919 |
|
|
|
3920 |
default:
|
|
|
3921 |
{
|
|
|
3922 |
FT_ListNode node = 0;
|
|
|
3923 |
FT_Bool update = 0;
|
|
|
3924 |
|
|
|
3925 |
|
|
|
3926 |
/* small shortcut for the very common case */
|
|
|
3927 |
if ( slot->format == FT_GLYPH_FORMAT_OUTLINE )
|
|
|
3928 |
{
|
|
|
3929 |
renderer = library->cur_renderer;
|
|
|
3930 |
node = library->renderers.head;
|
|
|
3931 |
}
|
|
|
3932 |
else
|
|
|
3933 |
renderer = FT_Lookup_Renderer( library, slot->format, &node );
|
|
|
3934 |
|
|
|
3935 |
error = FT_Err_Unimplemented_Feature;
|
|
|
3936 |
while ( renderer )
|
|
|
3937 |
{
|
|
|
3938 |
error = renderer->render( renderer, slot, render_mode, NULL );
|
|
|
3939 |
if ( !error ||
|
|
|
3940 |
FT_ERROR_BASE( error ) != FT_Err_Cannot_Render_Glyph )
|
|
|
3941 |
break;
|
|
|
3942 |
|
|
|
3943 |
/* FT_Err_Cannot_Render_Glyph is returned if the render mode */
|
|
|
3944 |
/* is unsupported by the current renderer for this glyph image */
|
|
|
3945 |
/* format. */
|
|
|
3946 |
|
|
|
3947 |
/* now, look for another renderer that supports the same */
|
|
|
3948 |
/* format. */
|
|
|
3949 |
renderer = FT_Lookup_Renderer( library, slot->format, &node );
|
|
|
3950 |
update = 1;
|
|
|
3951 |
}
|
|
|
3952 |
|
|
|
3953 |
/* if we changed the current renderer for the glyph image format */
|
|
|
3954 |
/* we need to select it as the next current one */
|
|
|
3955 |
if ( !error && update && renderer )
|
|
|
3956 |
FT_Set_Renderer( library, renderer, 0, 0 );
|
|
|
3957 |
}
|
|
|
3958 |
}
|
|
|
3959 |
|
|
|
3960 |
return error;
|
|
|
3961 |
}
|
|
|
3962 |
|
|
|
3963 |
|
|
|
3964 |
/* documentation is in freetype.h */
|
|
|
3965 |
|
|
|
3966 |
FT_EXPORT_DEF( FT_Error )
|
|
|
3967 |
FT_Render_Glyph( FT_GlyphSlot slot,
|
|
|
3968 |
FT_Render_Mode render_mode )
|
|
|
3969 |
{
|
|
|
3970 |
FT_Library library;
|
|
|
3971 |
|
|
|
3972 |
|
|
|
3973 |
if ( !slot || !slot->face )
|
|
|
3974 |
return FT_Err_Invalid_Argument;
|
|
|
3975 |
|
|
|
3976 |
library = FT_FACE_LIBRARY( slot->face );
|
|
|
3977 |
|
|
|
3978 |
return FT_Render_Glyph_Internal( library, slot, render_mode );
|
|
|
3979 |
}
|
|
|
3980 |
|
|
|
3981 |
|
|
|
3982 |
/*************************************************************************/
|
|
|
3983 |
/*************************************************************************/
|
|
|
3984 |
/*************************************************************************/
|
|
|
3985 |
/**** ****/
|
|
|
3986 |
/**** ****/
|
|
|
3987 |
/**** M O D U L E S ****/
|
|
|
3988 |
/**** ****/
|
|
|
3989 |
/**** ****/
|
|
|
3990 |
/*************************************************************************/
|
|
|
3991 |
/*************************************************************************/
|
|
|
3992 |
/*************************************************************************/
|
|
|
3993 |
|
|
|
3994 |
|
|
|
3995 |
/*************************************************************************/
|
|
|
3996 |
/* */
|
|
|
3997 |
/* <Function> */
|
|
|
3998 |
/* Destroy_Module */
|
|
|
3999 |
/* */
|
|
|
4000 |
/* <Description> */
|
|
|
4001 |
/* Destroys a given module object. For drivers, this also destroys */
|
|
|
4002 |
/* all child faces. */
|
|
|
4003 |
/* */
|
|
|
4004 |
/* <InOut> */
|
|
|
4005 |
/* module :: A handle to the target driver object. */
|
|
|
4006 |
/* */
|
|
|
4007 |
/* <Note> */
|
|
|
4008 |
/* The driver _must_ be LOCKED! */
|
|
|
4009 |
/* */
|
|
|
4010 |
static void
|
|
|
4011 |
Destroy_Module( FT_Module module )
|
|
|
4012 |
{
|
|
|
4013 |
FT_Memory memory = module->memory;
|
|
|
4014 |
FT_Module_Class* clazz = module->clazz;
|
|
|
4015 |
FT_Library library = module->library;
|
|
|
4016 |
|
|
|
4017 |
|
|
|
4018 |
/* finalize client-data - before anything else */
|
|
|
4019 |
if ( module->generic.finalizer )
|
|
|
4020 |
module->generic.finalizer( module );
|
|
|
4021 |
|
|
|
4022 |
if ( library && library->auto_hinter == module )
|
|
|
4023 |
library->auto_hinter = 0;
|
|
|
4024 |
|
|
|
4025 |
/* if the module is a renderer */
|
|
|
4026 |
if ( FT_MODULE_IS_RENDERER( module ) )
|
|
|
4027 |
ft_remove_renderer( module );
|
|
|
4028 |
|
|
|
4029 |
/* if the module is a font driver, add some steps */
|
|
|
4030 |
if ( FT_MODULE_IS_DRIVER( module ) )
|
|
|
4031 |
Destroy_Driver( FT_DRIVER( module ) );
|
|
|
4032 |
|
|
|
4033 |
/* finalize the module object */
|
|
|
4034 |
if ( clazz->module_done )
|
|
|
4035 |
clazz->module_done( module );
|
|
|
4036 |
|
|
|
4037 |
/* discard it */
|
|
|
4038 |
FT_FREE( module );
|
|
|
4039 |
}
|
|
|
4040 |
|
|
|
4041 |
|
|
|
4042 |
/* documentation is in ftmodapi.h */
|
|
|
4043 |
|
|
|
4044 |
FT_EXPORT_DEF( FT_Error )
|
|
|
4045 |
FT_Add_Module( FT_Library library,
|
|
|
4046 |
const FT_Module_Class* clazz )
|
|
|
4047 |
{
|
|
|
4048 |
FT_Error error;
|
|
|
4049 |
FT_Memory memory;
|
|
|
4050 |
FT_Module module;
|
|
|
4051 |
FT_UInt nn;
|
|
|
4052 |
|
|
|
4053 |
|
|
|
4054 |
#define FREETYPE_VER_FIXED ( ( (FT_Long)FREETYPE_MAJOR << 16 ) | \
|
|
|
4055 |
FREETYPE_MINOR )
|
|
|
4056 |
|
|
|
4057 |
if ( !library )
|
|
|
4058 |
return FT_Err_Invalid_Library_Handle;
|
|
|
4059 |
|
|
|
4060 |
if ( !clazz )
|
|
|
4061 |
return FT_Err_Invalid_Argument;
|
|
|
4062 |
|
|
|
4063 |
/* check freetype version */
|
|
|
4064 |
if ( clazz->module_requires > FREETYPE_VER_FIXED )
|
|
|
4065 |
return FT_Err_Invalid_Version;
|
|
|
4066 |
|
|
|
4067 |
/* look for a module with the same name in the library's table */
|
|
|
4068 |
for ( nn = 0; nn < library->num_modules; nn++ )
|
|
|
4069 |
{
|
|
|
4070 |
module = library->modules[nn];
|
|
|
4071 |
if ( ft_strcmp( module->clazz->module_name, clazz->module_name ) == 0 )
|
|
|
4072 |
{
|
|
|
4073 |
/* this installed module has the same name, compare their versions */
|
|
|
4074 |
if ( clazz->module_version <= module->clazz->module_version )
|
|
|
4075 |
return FT_Err_Lower_Module_Version;
|
|
|
4076 |
|
|
|
4077 |
/* remove the module from our list, then exit the loop to replace */
|
|
|
4078 |
/* it by our new version.. */
|
|
|
4079 |
FT_Remove_Module( library, module );
|
|
|
4080 |
break;
|
|
|
4081 |
}
|
|
|
4082 |
}
|
|
|
4083 |
|
|
|
4084 |
memory = library->memory;
|
|
|
4085 |
error = FT_Err_Ok;
|
|
|
4086 |
|
|
|
4087 |
if ( library->num_modules >= FT_MAX_MODULES )
|
|
|
4088 |
{
|
|
|
4089 |
error = FT_Err_Too_Many_Drivers;
|
|
|
4090 |
goto Exit;
|
|
|
4091 |
}
|
|
|
4092 |
|
|
|
4093 |
/* allocate module object */
|
|
|
4094 |
if ( FT_ALLOC( module, clazz->module_size ) )
|
|
|
4095 |
goto Exit;
|
|
|
4096 |
|
|
|
4097 |
/* base initialization */
|
|
|
4098 |
module->library = library;
|
|
|
4099 |
module->memory = memory;
|
|
|
4100 |
module->clazz = (FT_Module_Class*)clazz;
|
|
|
4101 |
|
|
|
4102 |
/* check whether the module is a renderer - this must be performed */
|
|
|
4103 |
/* before the normal module initialization */
|
|
|
4104 |
if ( FT_MODULE_IS_RENDERER( module ) )
|
|
|
4105 |
{
|
|
|
4106 |
/* add to the renderers list */
|
|
|
4107 |
error = ft_add_renderer( module );
|
|
|
4108 |
if ( error )
|
|
|
4109 |
goto Fail;
|
|
|
4110 |
}
|
|
|
4111 |
|
|
|
4112 |
/* is the module a auto-hinter? */
|
|
|
4113 |
if ( FT_MODULE_IS_HINTER( module ) )
|
|
|
4114 |
library->auto_hinter = module;
|
|
|
4115 |
|
|
|
4116 |
/* if the module is a font driver */
|
|
|
4117 |
if ( FT_MODULE_IS_DRIVER( module ) )
|
|
|
4118 |
{
|
|
|
4119 |
/* allocate glyph loader if needed */
|
|
|
4120 |
FT_Driver driver = FT_DRIVER( module );
|
|
|
4121 |
|
|
|
4122 |
|
|
|
4123 |
driver->clazz = (FT_Driver_Class)module->clazz;
|
|
|
4124 |
if ( FT_DRIVER_USES_OUTLINES( driver ) )
|
|
|
4125 |
{
|
|
|
4126 |
error = FT_GlyphLoader_New( memory, &driver->glyph_loader );
|
|
|
4127 |
if ( error )
|
|
|
4128 |
goto Fail;
|
|
|
4129 |
}
|
|
|
4130 |
}
|
|
|
4131 |
|
|
|
4132 |
if ( clazz->module_init )
|
|
|
4133 |
{
|
|
|
4134 |
error = clazz->module_init( module );
|
|
|
4135 |
if ( error )
|
|
|
4136 |
goto Fail;
|
|
|
4137 |
}
|
|
|
4138 |
|
|
|
4139 |
/* add module to the library's table */
|
|
|
4140 |
library->modules[library->num_modules++] = module;
|
|
|
4141 |
|
|
|
4142 |
Exit:
|
|
|
4143 |
return error;
|
|
|
4144 |
|
|
|
4145 |
Fail:
|
|
|
4146 |
if ( FT_MODULE_IS_DRIVER( module ) )
|
|
|
4147 |
{
|
|
|
4148 |
FT_Driver driver = FT_DRIVER( module );
|
|
|
4149 |
|
|
|
4150 |
|
|
|
4151 |
if ( FT_DRIVER_USES_OUTLINES( driver ) )
|
|
|
4152 |
FT_GlyphLoader_Done( driver->glyph_loader );
|
|
|
4153 |
}
|
|
|
4154 |
|
|
|
4155 |
if ( FT_MODULE_IS_RENDERER( module ) )
|
|
|
4156 |
{
|
|
|
4157 |
FT_Renderer renderer = FT_RENDERER( module );
|
|
|
4158 |
|
|
|
4159 |
|
|
|
4160 |
if ( renderer->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
|
|
|
4161 |
renderer->raster )
|
|
|
4162 |
renderer->clazz->raster_class->raster_done( renderer->raster );
|
|
|
4163 |
}
|
|
|
4164 |
|
|
|
4165 |
FT_FREE( module );
|
|
|
4166 |
goto Exit;
|
|
|
4167 |
}
|
|
|
4168 |
|
|
|
4169 |
|
|
|
4170 |
/* documentation is in ftmodapi.h */
|
|
|
4171 |
|
|
|
4172 |
FT_EXPORT_DEF( FT_Module )
|
|
|
4173 |
FT_Get_Module( FT_Library library,
|
|
|
4174 |
const char* module_name )
|
|
|
4175 |
{
|
|
|
4176 |
FT_Module result = 0;
|
|
|
4177 |
FT_Module* cur;
|
|
|
4178 |
FT_Module* limit;
|
|
|
4179 |
|
|
|
4180 |
|
|
|
4181 |
if ( !library || !module_name )
|
|
|
4182 |
return result;
|
|
|
4183 |
|
|
|
4184 |
cur = library->modules;
|
|
|
4185 |
limit = cur + library->num_modules;
|
|
|
4186 |
|
|
|
4187 |
for ( ; cur < limit; cur++ )
|
|
|
4188 |
if ( ft_strcmp( cur[0]->clazz->module_name, module_name ) == 0 )
|
|
|
4189 |
{
|
|
|
4190 |
result = cur[0];
|
|
|
4191 |
break;
|
|
|
4192 |
}
|
|
|
4193 |
|
|
|
4194 |
return result;
|
|
|
4195 |
}
|
|
|
4196 |
|
|
|
4197 |
|
|
|
4198 |
/* documentation is in ftobjs.h */
|
|
|
4199 |
|
|
|
4200 |
FT_BASE_DEF( const void* )
|
|
|
4201 |
FT_Get_Module_Interface( FT_Library library,
|
|
|
4202 |
const char* mod_name )
|
|
|
4203 |
{
|
|
|
4204 |
FT_Module module;
|
|
|
4205 |
|
|
|
4206 |
|
|
|
4207 |
/* test for valid `library' delayed to FT_Get_Module() */
|
|
|
4208 |
|
|
|
4209 |
module = FT_Get_Module( library, mod_name );
|
|
|
4210 |
|
|
|
4211 |
return module ? module->clazz->module_interface : 0;
|
|
|
4212 |
}
|
|
|
4213 |
|
|
|
4214 |
|
|
|
4215 |
FT_BASE_DEF( FT_Pointer )
|
|
|
4216 |
ft_module_get_service( FT_Module module,
|
|
|
4217 |
const char* service_id )
|
|
|
4218 |
{
|
|
|
4219 |
FT_Pointer result = NULL;
|
|
|
4220 |
|
|
|
4221 |
if ( module )
|
|
|
4222 |
{
|
|
|
4223 |
FT_ASSERT( module->clazz && module->clazz->get_interface );
|
|
|
4224 |
|
|
|
4225 |
/* first, look for the service in the module
|
|
|
4226 |
*/
|
|
|
4227 |
if ( module->clazz->get_interface )
|
|
|
4228 |
result = module->clazz->get_interface( module, service_id );
|
|
|
4229 |
|
|
|
4230 |
if ( result == NULL )
|
|
|
4231 |
{
|
|
|
4232 |
/* we didn't find it, look in all other modules then
|
|
|
4233 |
*/
|
|
|
4234 |
FT_Library library = module->library;
|
|
|
4235 |
FT_Module* cur = library->modules;
|
|
|
4236 |
FT_Module* limit = cur + library->num_modules;
|
|
|
4237 |
|
|
|
4238 |
for ( ; cur < limit; cur++ )
|
|
|
4239 |
{
|
|
|
4240 |
if ( cur[0] != module )
|
|
|
4241 |
{
|
|
|
4242 |
FT_ASSERT( cur[0]->clazz );
|
|
|
4243 |
|
|
|
4244 |
if ( cur[0]->clazz->get_interface )
|
|
|
4245 |
{
|
|
|
4246 |
result = cur[0]->clazz->get_interface( cur[0], service_id );
|
|
|
4247 |
if ( result != NULL )
|
|
|
4248 |
break;
|
|
|
4249 |
}
|
|
|
4250 |
}
|
|
|
4251 |
}
|
|
|
4252 |
}
|
|
|
4253 |
}
|
|
|
4254 |
|
|
|
4255 |
return result;
|
|
|
4256 |
}
|
|
|
4257 |
|
|
|
4258 |
|
|
|
4259 |
/* documentation is in ftmodapi.h */
|
|
|
4260 |
|
|
|
4261 |
FT_EXPORT_DEF( FT_Error )
|
|
|
4262 |
FT_Remove_Module( FT_Library library,
|
|
|
4263 |
FT_Module module )
|
|
|
4264 |
{
|
|
|
4265 |
/* try to find the module from the table, then remove it from there */
|
|
|
4266 |
|
|
|
4267 |
if ( !library )
|
|
|
4268 |
return FT_Err_Invalid_Library_Handle;
|
|
|
4269 |
|
|
|
4270 |
if ( module )
|
|
|
4271 |
{
|
|
|
4272 |
FT_Module* cur = library->modules;
|
|
|
4273 |
FT_Module* limit = cur + library->num_modules;
|
|
|
4274 |
|
|
|
4275 |
|
|
|
4276 |
for ( ; cur < limit; cur++ )
|
|
|
4277 |
{
|
|
|
4278 |
if ( cur[0] == module )
|
|
|
4279 |
{
|
|
|
4280 |
/* remove it from the table */
|
|
|
4281 |
library->num_modules--;
|
|
|
4282 |
limit--;
|
|
|
4283 |
while ( cur < limit )
|
|
|
4284 |
{
|
|
|
4285 |
cur[0] = cur[1];
|
|
|
4286 |
cur++;
|
|
|
4287 |
}
|
|
|
4288 |
limit[0] = 0;
|
|
|
4289 |
|
|
|
4290 |
/* destroy the module */
|
|
|
4291 |
Destroy_Module( module );
|
|
|
4292 |
|
|
|
4293 |
return FT_Err_Ok;
|
|
|
4294 |
}
|
|
|
4295 |
}
|
|
|
4296 |
}
|
|
|
4297 |
return FT_Err_Invalid_Driver_Handle;
|
|
|
4298 |
}
|
|
|
4299 |
|
|
|
4300 |
|
|
|
4301 |
/*************************************************************************/
|
|
|
4302 |
/*************************************************************************/
|
|
|
4303 |
/*************************************************************************/
|
|
|
4304 |
/**** ****/
|
|
|
4305 |
/**** ****/
|
|
|
4306 |
/**** L I B R A R Y ****/
|
|
|
4307 |
/**** ****/
|
|
|
4308 |
/**** ****/
|
|
|
4309 |
/*************************************************************************/
|
|
|
4310 |
/*************************************************************************/
|
|
|
4311 |
/*************************************************************************/
|
|
|
4312 |
|
|
|
4313 |
|
|
|
4314 |
/* documentation is in ftmodapi.h */
|
|
|
4315 |
|
|
|
4316 |
FT_EXPORT_DEF( FT_Error )
|
|
|
4317 |
FT_Reference_Library( FT_Library library )
|
|
|
4318 |
{
|
|
|
4319 |
library->refcount++;
|
|
|
4320 |
|
|
|
4321 |
return FT_Err_Ok;
|
|
|
4322 |
}
|
|
|
4323 |
|
|
|
4324 |
|
|
|
4325 |
/* documentation is in ftmodapi.h */
|
|
|
4326 |
|
|
|
4327 |
FT_EXPORT_DEF( FT_Error )
|
|
|
4328 |
FT_New_Library( FT_Memory memory,
|
|
|
4329 |
FT_Library *alibrary )
|
|
|
4330 |
{
|
|
|
4331 |
FT_Library library = NULL;
|
|
|
4332 |
FT_Error error;
|
|
|
4333 |
|
|
|
4334 |
|
|
|
4335 |
if ( !memory )
|
|
|
4336 |
return FT_Err_Invalid_Argument;
|
|
|
4337 |
|
|
|
4338 |
#ifdef FT_DEBUG_LEVEL_ERROR
|
|
|
4339 |
/* init debugging support */
|
|
|
4340 |
ft_debug_init();
|
|
|
4341 |
#endif
|
|
|
4342 |
|
|
|
4343 |
/* first of all, allocate the library object */
|
|
|
4344 |
if ( FT_NEW( library ) )
|
|
|
4345 |
return error;
|
|
|
4346 |
|
|
|
4347 |
library->memory = memory;
|
|
|
4348 |
|
|
|
4349 |
#ifdef FT_CONFIG_OPTION_PIC
|
|
|
4350 |
/* initialize position independent code containers */
|
|
|
4351 |
error = ft_pic_container_init( library );
|
|
|
4352 |
if ( error )
|
|
|
4353 |
goto Fail;
|
|
|
4354 |
#endif
|
|
|
4355 |
|
|
|
4356 |
/* allocate the render pool */
|
|
|
4357 |
library->raster_pool_size = FT_RENDER_POOL_SIZE;
|
|
|
4358 |
#if FT_RENDER_POOL_SIZE > 0
|
|
|
4359 |
if ( FT_ALLOC( library->raster_pool, FT_RENDER_POOL_SIZE ) )
|
|
|
4360 |
goto Fail;
|
|
|
4361 |
#endif
|
|
|
4362 |
|
|
|
4363 |
library->version_major = FREETYPE_MAJOR;
|
|
|
4364 |
library->version_minor = FREETYPE_MINOR;
|
|
|
4365 |
library->version_patch = FREETYPE_PATCH;
|
|
|
4366 |
|
|
|
4367 |
library->refcount = 1;
|
|
|
4368 |
|
|
|
4369 |
/* That's ok now */
|
|
|
4370 |
*alibrary = library;
|
|
|
4371 |
|
|
|
4372 |
return FT_Err_Ok;
|
|
|
4373 |
|
|
|
4374 |
Fail:
|
|
|
4375 |
#ifdef FT_CONFIG_OPTION_PIC
|
|
|
4376 |
ft_pic_container_destroy( library );
|
|
|
4377 |
#endif
|
|
|
4378 |
FT_FREE( library );
|
|
|
4379 |
return error;
|
|
|
4380 |
}
|
|
|
4381 |
|
|
|
4382 |
|
|
|
4383 |
/* documentation is in freetype.h */
|
|
|
4384 |
|
|
|
4385 |
FT_EXPORT_DEF( void )
|
|
|
4386 |
FT_Library_Version( FT_Library library,
|
|
|
4387 |
FT_Int *amajor,
|
|
|
4388 |
FT_Int *aminor,
|
|
|
4389 |
FT_Int *apatch )
|
|
|
4390 |
{
|
|
|
4391 |
FT_Int major = 0;
|
|
|
4392 |
FT_Int minor = 0;
|
|
|
4393 |
FT_Int patch = 0;
|
|
|
4394 |
|
|
|
4395 |
|
|
|
4396 |
if ( library )
|
|
|
4397 |
{
|
|
|
4398 |
major = library->version_major;
|
|
|
4399 |
minor = library->version_minor;
|
|
|
4400 |
patch = library->version_patch;
|
|
|
4401 |
}
|
|
|
4402 |
|
|
|
4403 |
if ( amajor )
|
|
|
4404 |
*amajor = major;
|
|
|
4405 |
|
|
|
4406 |
if ( aminor )
|
|
|
4407 |
*aminor = minor;
|
|
|
4408 |
|
|
|
4409 |
if ( apatch )
|
|
|
4410 |
*apatch = patch;
|
|
|
4411 |
}
|
|
|
4412 |
|
|
|
4413 |
|
|
|
4414 |
/* documentation is in ftmodapi.h */
|
|
|
4415 |
|
|
|
4416 |
FT_EXPORT_DEF( FT_Error )
|
|
|
4417 |
FT_Done_Library( FT_Library library )
|
|
|
4418 |
{
|
|
|
4419 |
FT_Memory memory;
|
|
|
4420 |
|
|
|
4421 |
|
|
|
4422 |
if ( !library )
|
|
|
4423 |
return FT_Err_Invalid_Library_Handle;
|
|
|
4424 |
|
|
|
4425 |
library->refcount--;
|
|
|
4426 |
if ( library->refcount > 0 )
|
|
|
4427 |
goto Exit;
|
|
|
4428 |
|
|
|
4429 |
memory = library->memory;
|
|
|
4430 |
|
|
|
4431 |
/* Discard client-data */
|
|
|
4432 |
if ( library->generic.finalizer )
|
|
|
4433 |
library->generic.finalizer( library );
|
|
|
4434 |
|
|
|
4435 |
/*
|
|
|
4436 |
* Close all faces in the library. If we don't do this, we can have
|
|
|
4437 |
* some subtle memory leaks.
|
|
|
4438 |
*
|
|
|
4439 |
* Example:
|
|
|
4440 |
*
|
|
|
4441 |
* - the cff font driver uses the pshinter module in cff_size_done
|
|
|
4442 |
* - if the pshinter module is destroyed before the cff font driver,
|
|
|
4443 |
* opened FT_Face objects managed by the driver are not properly
|
|
|
4444 |
* destroyed, resulting in a memory leak
|
|
|
4445 |
*
|
|
|
4446 |
* Some faces are dependent on other faces, like Type42 faces that
|
|
|
4447 |
* depend on TrueType faces synthesized internally.
|
|
|
4448 |
*
|
|
|
4449 |
* The order of drivers should be specified in driver_name[].
|
|
|
4450 |
*/
|
|
|
4451 |
{
|
|
|
4452 |
FT_UInt m, n;
|
|
|
4453 |
const char* driver_name[] = { "type42", NULL };
|
|
|
4454 |
|
|
|
4455 |
|
|
|
4456 |
for ( m = 0;
|
|
|
4457 |
m < sizeof ( driver_name ) / sizeof ( driver_name[0] );
|
|
|
4458 |
m++ )
|
|
|
4459 |
{
|
|
|
4460 |
for ( n = 0; n < library->num_modules; n++ )
|
|
|
4461 |
{
|
|
|
4462 |
FT_Module module = library->modules[n];
|
|
|
4463 |
const char* module_name = module->clazz->module_name;
|
|
|
4464 |
FT_List faces;
|
|
|
4465 |
|
|
|
4466 |
|
|
|
4467 |
if ( driver_name[m] &&
|
|
|
4468 |
ft_strcmp( module_name, driver_name[m] ) != 0 )
|
|
|
4469 |
continue;
|
|
|
4470 |
|
|
|
4471 |
if ( ( module->clazz->module_flags & FT_MODULE_FONT_DRIVER ) == 0 )
|
|
|
4472 |
continue;
|
|
|
4473 |
|
|
|
4474 |
FT_TRACE7(( "FT_Done_Library: close faces for %s\n", module_name ));
|
|
|
4475 |
|
|
|
4476 |
faces = &FT_DRIVER( module )->faces_list;
|
|
|
4477 |
while ( faces->head )
|
|
|
4478 |
{
|
|
|
4479 |
FT_Done_Face( FT_FACE( faces->head->data ) );
|
|
|
4480 |
if ( faces->head )
|
|
|
4481 |
FT_TRACE0(( "FT_Done_Library: failed to free some faces\n" ));
|
|
|
4482 |
}
|
|
|
4483 |
}
|
|
|
4484 |
}
|
|
|
4485 |
}
|
|
|
4486 |
|
|
|
4487 |
/* Close all other modules in the library */
|
|
|
4488 |
#if 1
|
|
|
4489 |
/* XXX Modules are removed in the reversed order so that */
|
|
|
4490 |
/* type42 module is removed before truetype module. This */
|
|
|
4491 |
/* avoids double free in some occasions. It is a hack. */
|
|
|
4492 |
while ( library->num_modules > 0 )
|
|
|
4493 |
FT_Remove_Module( library,
|
|
|
4494 |
library->modules[library->num_modules - 1] );
|
|
|
4495 |
#else
|
|
|
4496 |
{
|
|
|
4497 |
FT_UInt n;
|
|
|
4498 |
|
|
|
4499 |
|
|
|
4500 |
for ( n = 0; n < library->num_modules; n++ )
|
|
|
4501 |
{
|
|
|
4502 |
FT_Module module = library->modules[n];
|
|
|
4503 |
|
|
|
4504 |
|
|
|
4505 |
if ( module )
|
|
|
4506 |
{
|
|
|
4507 |
Destroy_Module( module );
|
|
|
4508 |
library->modules[n] = 0;
|
|
|
4509 |
}
|
|
|
4510 |
}
|
|
|
4511 |
}
|
|
|
4512 |
#endif
|
|
|
4513 |
|
|
|
4514 |
/* Destroy raster objects */
|
|
|
4515 |
FT_FREE( library->raster_pool );
|
|
|
4516 |
library->raster_pool_size = 0;
|
|
|
4517 |
|
|
|
4518 |
#ifdef FT_CONFIG_OPTION_PIC
|
|
|
4519 |
/* Destroy pic container contents */
|
|
|
4520 |
ft_pic_container_destroy( library );
|
|
|
4521 |
#endif
|
|
|
4522 |
|
|
|
4523 |
FT_FREE( library );
|
|
|
4524 |
|
|
|
4525 |
Exit:
|
|
|
4526 |
return FT_Err_Ok;
|
|
|
4527 |
}
|
|
|
4528 |
|
|
|
4529 |
|
|
|
4530 |
/* documentation is in ftmodapi.h */
|
|
|
4531 |
|
|
|
4532 |
FT_EXPORT_DEF( void )
|
|
|
4533 |
FT_Set_Debug_Hook( FT_Library library,
|
|
|
4534 |
FT_UInt hook_index,
|
|
|
4535 |
FT_DebugHook_Func debug_hook )
|
|
|
4536 |
{
|
|
|
4537 |
if ( library && debug_hook &&
|
|
|
4538 |
hook_index <
|
|
|
4539 |
( sizeof ( library->debug_hooks ) / sizeof ( void* ) ) )
|
|
|
4540 |
library->debug_hooks[hook_index] = debug_hook;
|
|
|
4541 |
}
|
|
|
4542 |
|
|
|
4543 |
|
|
|
4544 |
/* documentation is in ftmodapi.h */
|
|
|
4545 |
|
|
|
4546 |
FT_EXPORT_DEF( FT_TrueTypeEngineType )
|
|
|
4547 |
FT_Get_TrueType_Engine_Type( FT_Library library )
|
|
|
4548 |
{
|
|
|
4549 |
FT_TrueTypeEngineType result = FT_TRUETYPE_ENGINE_TYPE_NONE;
|
|
|
4550 |
|
|
|
4551 |
|
|
|
4552 |
if ( library )
|
|
|
4553 |
{
|
|
|
4554 |
FT_Module module = FT_Get_Module( library, "truetype" );
|
|
|
4555 |
|
|
|
4556 |
|
|
|
4557 |
if ( module )
|
|
|
4558 |
{
|
|
|
4559 |
FT_Service_TrueTypeEngine service;
|
|
|
4560 |
|
|
|
4561 |
|
|
|
4562 |
service = (FT_Service_TrueTypeEngine)
|
|
|
4563 |
ft_module_get_service( module,
|
|
|
4564 |
FT_SERVICE_ID_TRUETYPE_ENGINE );
|
|
|
4565 |
if ( service )
|
|
|
4566 |
result = service->engine_type;
|
|
|
4567 |
}
|
|
|
4568 |
}
|
|
|
4569 |
|
|
|
4570 |
return result;
|
|
|
4571 |
}
|
|
|
4572 |
|
|
|
4573 |
|
|
|
4574 |
#ifdef FT_CONFIG_OPTION_OLD_INTERNALS
|
|
|
4575 |
|
|
|
4576 |
FT_BASE_DEF( FT_Error )
|
|
|
4577 |
ft_stub_set_char_sizes( FT_Size size,
|
|
|
4578 |
FT_F26Dot6 width,
|
|
|
4579 |
FT_F26Dot6 height,
|
|
|
4580 |
FT_UInt horz_res,
|
|
|
4581 |
FT_UInt vert_res )
|
|
|
4582 |
{
|
|
|
4583 |
FT_Size_RequestRec req;
|
|
|
4584 |
FT_Driver driver = size->face->driver;
|
|
|
4585 |
|
|
|
4586 |
|
|
|
4587 |
if ( driver->clazz->request_size )
|
|
|
4588 |
{
|
|
|
4589 |
req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
|
|
|
4590 |
req.width = width;
|
|
|
4591 |
req.height = height;
|
|
|
4592 |
|
|
|
4593 |
if ( horz_res == 0 )
|
|
|
4594 |
horz_res = vert_res;
|
|
|
4595 |
|
|
|
4596 |
if ( vert_res == 0 )
|
|
|
4597 |
vert_res = horz_res;
|
|
|
4598 |
|
|
|
4599 |
if ( horz_res == 0 )
|
|
|
4600 |
horz_res = vert_res = 72;
|
|
|
4601 |
|
|
|
4602 |
req.horiResolution = horz_res;
|
|
|
4603 |
req.vertResolution = vert_res;
|
|
|
4604 |
|
|
|
4605 |
return driver->clazz->request_size( size, &req );
|
|
|
4606 |
}
|
|
|
4607 |
|
|
|
4608 |
return 0;
|
|
|
4609 |
}
|
|
|
4610 |
|
|
|
4611 |
|
|
|
4612 |
FT_BASE_DEF( FT_Error )
|
|
|
4613 |
ft_stub_set_pixel_sizes( FT_Size size,
|
|
|
4614 |
FT_UInt width,
|
|
|
4615 |
FT_UInt height )
|
|
|
4616 |
{
|
|
|
4617 |
FT_Size_RequestRec req;
|
|
|
4618 |
FT_Driver driver = size->face->driver;
|
|
|
4619 |
|
|
|
4620 |
|
|
|
4621 |
if ( driver->clazz->request_size )
|
|
|
4622 |
{
|
|
|
4623 |
req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
|
|
|
4624 |
req.width = width << 6;
|
|
|
4625 |
req.height = height << 6;
|
|
|
4626 |
req.horiResolution = 0;
|
|
|
4627 |
req.vertResolution = 0;
|
|
|
4628 |
|
|
|
4629 |
return driver->clazz->request_size( size, &req );
|
|
|
4630 |
}
|
|
|
4631 |
|
|
|
4632 |
return 0;
|
|
|
4633 |
}
|
|
|
4634 |
|
|
|
4635 |
#endif /* FT_CONFIG_OPTION_OLD_INTERNALS */
|
|
|
4636 |
|
|
|
4637 |
|
|
|
4638 |
/* documentation is in freetype.h */
|
|
|
4639 |
|
|
|
4640 |
FT_EXPORT_DEF( FT_Error )
|
|
|
4641 |
FT_Get_SubGlyph_Info( FT_GlyphSlot glyph,
|
|
|
4642 |
FT_UInt sub_index,
|
|
|
4643 |
FT_Int *p_index,
|
|
|
4644 |
FT_UInt *p_flags,
|
|
|
4645 |
FT_Int *p_arg1,
|
|
|
4646 |
FT_Int *p_arg2,
|
|
|
4647 |
FT_Matrix *p_transform )
|
|
|
4648 |
{
|
|
|
4649 |
FT_Error error = FT_Err_Invalid_Argument;
|
|
|
4650 |
|
|
|
4651 |
|
|
|
4652 |
if ( glyph &&
|
|
|
4653 |
glyph->subglyphs &&
|
|
|
4654 |
glyph->format == FT_GLYPH_FORMAT_COMPOSITE &&
|
|
|
4655 |
sub_index < glyph->num_subglyphs )
|
|
|
4656 |
{
|
|
|
4657 |
FT_SubGlyph subg = glyph->subglyphs + sub_index;
|
|
|
4658 |
|
|
|
4659 |
|
|
|
4660 |
*p_index = subg->index;
|
|
|
4661 |
*p_flags = subg->flags;
|
|
|
4662 |
*p_arg1 = subg->arg1;
|
|
|
4663 |
*p_arg2 = subg->arg2;
|
|
|
4664 |
*p_transform = subg->transform;
|
|
|
4665 |
}
|
|
|
4666 |
|
|
|
4667 |
return error;
|
|
|
4668 |
}
|
|
|
4669 |
|
|
|
4670 |
|
|
|
4671 |
/* END */
|