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5172
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/***************************************************************************/
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/* */
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/* t1load.c */
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4 |
/* */
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/* Type 1 font loader (body). */
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/* */
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/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */
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/* 2010 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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/*************************************************************************/
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/* */
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/* This is the new and improved Type 1 data loader for FreeType 2. The */
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/* old loader has several problems: it is slow, complex, difficult to */
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/* maintain, and contains incredible hacks to make it accept some */
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25 |
/* ill-formed Type 1 fonts without hiccup-ing. Moreover, about 5% of */
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/* the Type 1 fonts on my machine still aren't loaded correctly by it. */
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/* */
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/* This version is much simpler, much faster and also easier to read and */
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/* maintain by a great order of magnitude. The idea behind it is to */
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/* _not_ try to read the Type 1 token stream with a state machine (i.e. */
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/* a Postscript-like interpreter) but rather to perform simple pattern */
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/* matching. */
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/* */
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/* Indeed, nearly all data definitions follow a simple pattern like */
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/* */
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/* ... /Field <data> ... */
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/* */
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/* where <data> can be a number, a boolean, a string, or an array of */
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/* numbers. There are a few exceptions, namely the encoding, font name, */
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/* charstrings, and subrs; they are handled with a special pattern */
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/* matching routine. */
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/* */
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/* All other common cases are handled very simply. The matching rules */
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/* are defined in the file `t1tokens.h' through the use of several */
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/* macros calls PARSE_XXX. This file is included twice here; the first */
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/* time to generate parsing callback functions, the second time to */
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/* generate a table of keywords (with pointers to the associated */
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/* callback functions). */
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/* */
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/* The function `parse_dict' simply scans *linearly* a given dictionary */
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/* (either the top-level or private one) and calls the appropriate */
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/* callback when it encounters an immediate keyword. */
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/* */
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/* This is by far the fastest way one can find to parse and read all */
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/* data. */
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/* */
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/* This led to tremendous code size reduction. Note that later, the */
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/* glyph loader will also be _greatly_ simplified, and the automatic */
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/* hinter will replace the clumsy `t1hinter'. */
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/* */
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/*************************************************************************/
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64 |
#include <ft2build.h>
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65 |
#include FT_INTERNAL_DEBUG_H
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66 |
#include FT_CONFIG_CONFIG_H
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67 |
#include FT_MULTIPLE_MASTERS_H
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68 |
#include FT_INTERNAL_TYPE1_TYPES_H
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69 |
#include FT_INTERNAL_CALC_H
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#include "t1load.h"
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#include "t1errors.h"
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/*************************************************************************/
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/* */
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77 |
/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
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78 |
/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
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/* messages during execution. */
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/* */
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#undef FT_COMPONENT
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#define FT_COMPONENT trace_t1load
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84 |
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#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
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87 |
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/*************************************************************************/
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/*************************************************************************/
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/***** *****/
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/***** MULTIPLE MASTERS SUPPORT *****/
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/***** *****/
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/*************************************************************************/
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94 |
/*************************************************************************/
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95 |
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96 |
static FT_Error
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97 |
t1_allocate_blend( T1_Face face,
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FT_UInt num_designs,
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99 |
FT_UInt num_axis )
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100 |
{
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101 |
PS_Blend blend;
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102 |
FT_Memory memory = face->root.memory;
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103 |
FT_Error error = T1_Err_Ok;
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104 |
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105 |
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106 |
blend = face->blend;
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107 |
if ( !blend )
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108 |
{
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109 |
if ( FT_NEW( blend ) )
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110 |
goto Exit;
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111 |
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112 |
blend->num_default_design_vector = 0;
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113 |
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114 |
face->blend = blend;
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115 |
}
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116 |
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117 |
/* allocate design data if needed */
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118 |
if ( num_designs > 0 )
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119 |
{
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120 |
if ( blend->num_designs == 0 )
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121 |
{
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122 |
FT_UInt nn;
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123 |
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124 |
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125 |
/* allocate the blend `private' and `font_info' dictionaries */
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126 |
if ( FT_NEW_ARRAY( blend->font_infos[1], num_designs ) ||
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127 |
FT_NEW_ARRAY( blend->privates[1], num_designs ) ||
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128 |
FT_NEW_ARRAY( blend->bboxes[1], num_designs ) ||
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129 |
FT_NEW_ARRAY( blend->weight_vector, num_designs * 2 ) )
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130 |
goto Exit;
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131 |
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132 |
blend->default_weight_vector = blend->weight_vector + num_designs;
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133 |
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134 |
blend->font_infos[0] = &face->type1.font_info;
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135 |
blend->privates [0] = &face->type1.private_dict;
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136 |
blend->bboxes [0] = &face->type1.font_bbox;
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137 |
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138 |
for ( nn = 2; nn <= num_designs; nn++ )
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139 |
{
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140 |
blend->privates[nn] = blend->privates [nn - 1] + 1;
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141 |
blend->font_infos[nn] = blend->font_infos[nn - 1] + 1;
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142 |
blend->bboxes[nn] = blend->bboxes [nn - 1] + 1;
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143 |
}
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144 |
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145 |
blend->num_designs = num_designs;
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146 |
}
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147 |
else if ( blend->num_designs != num_designs )
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148 |
goto Fail;
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149 |
}
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150 |
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151 |
/* allocate axis data if needed */
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152 |
if ( num_axis > 0 )
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153 |
{
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154 |
if ( blend->num_axis != 0 && blend->num_axis != num_axis )
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155 |
goto Fail;
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156 |
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157 |
blend->num_axis = num_axis;
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158 |
}
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159 |
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160 |
/* allocate the blend design pos table if needed */
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161 |
num_designs = blend->num_designs;
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162 |
num_axis = blend->num_axis;
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163 |
if ( num_designs && num_axis && blend->design_pos[0] == 0 )
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164 |
{
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165 |
FT_UInt n;
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166 |
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167 |
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168 |
if ( FT_NEW_ARRAY( blend->design_pos[0], num_designs * num_axis ) )
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169 |
goto Exit;
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170 |
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171 |
for ( n = 1; n < num_designs; n++ )
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172 |
blend->design_pos[n] = blend->design_pos[0] + num_axis * n;
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173 |
}
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174 |
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175 |
Exit:
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176 |
return error;
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177 |
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178 |
Fail:
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179 |
error = T1_Err_Invalid_File_Format;
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180 |
goto Exit;
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181 |
}
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182 |
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183 |
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184 |
FT_LOCAL_DEF( FT_Error )
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185 |
T1_Get_Multi_Master( T1_Face face,
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186 |
FT_Multi_Master* master )
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187 |
{
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188 |
PS_Blend blend = face->blend;
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189 |
FT_UInt n;
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190 |
FT_Error error;
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191 |
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192 |
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193 |
error = T1_Err_Invalid_Argument;
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194 |
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195 |
if ( blend )
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196 |
{
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197 |
master->num_axis = blend->num_axis;
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198 |
master->num_designs = blend->num_designs;
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199 |
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200 |
for ( n = 0; n < blend->num_axis; n++ )
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201 |
{
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202 |
FT_MM_Axis* axis = master->axis + n;
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203 |
PS_DesignMap map = blend->design_map + n;
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204 |
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205 |
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206 |
axis->name = blend->axis_names[n];
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207 |
axis->minimum = map->design_points[0];
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208 |
axis->maximum = map->design_points[map->num_points - 1];
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209 |
}
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210 |
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211 |
error = T1_Err_Ok;
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212 |
}
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213 |
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214 |
return error;
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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 |
/* Given a normalized (blend) coordinate, figure out the design */
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221 |
/* coordinate appropriate for that value. */
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222 |
/* */
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223 |
FT_LOCAL_DEF( FT_Fixed )
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224 |
mm_axis_unmap( PS_DesignMap axismap,
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225 |
FT_Fixed ncv )
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226 |
{
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227 |
int j;
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228 |
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229 |
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230 |
if ( ncv <= axismap->blend_points[0] )
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231 |
return INT_TO_FIXED( axismap->design_points[0] );
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232 |
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233 |
for ( j = 1; j < axismap->num_points; ++j )
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234 |
{
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|
235 |
if ( ncv <= axismap->blend_points[j] )
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|
236 |
{
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|
237 |
FT_Fixed t = FT_MulDiv( ncv - axismap->blend_points[j - 1],
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|
238 |
0x10000L,
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|
239 |
axismap->blend_points[j] -
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|
240 |
axismap->blend_points[j - 1] );
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241 |
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242 |
return INT_TO_FIXED( axismap->design_points[j - 1] ) +
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|
243 |
FT_MulDiv( t,
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244 |
axismap->design_points[j] -
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|
245 |
axismap->design_points[j - 1],
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246 |
1L );
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247 |
}
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248 |
}
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249 |
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|
250 |
return INT_TO_FIXED( axismap->design_points[axismap->num_points - 1] );
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251 |
}
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252 |
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253 |
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254 |
/*************************************************************************/
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255 |
/* */
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256 |
/* Given a vector of weights, one for each design, figure out the */
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257 |
/* normalized axis coordinates which gave rise to those weights. */
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258 |
/* */
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259 |
FT_LOCAL_DEF( void )
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260 |
mm_weights_unmap( FT_Fixed* weights,
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261 |
FT_Fixed* axiscoords,
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|
262 |
FT_UInt axis_count )
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|
263 |
{
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|
264 |
FT_ASSERT( axis_count <= T1_MAX_MM_AXIS );
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265 |
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266 |
if ( axis_count == 1 )
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|
267 |
axiscoords[0] = weights[1];
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268 |
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|
269 |
else if ( axis_count == 2 )
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|
270 |
{
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|
271 |
axiscoords[0] = weights[3] + weights[1];
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|
272 |
axiscoords[1] = weights[3] + weights[2];
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273 |
}
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274 |
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|
275 |
else if ( axis_count == 3 )
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|
276 |
{
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|
277 |
axiscoords[0] = weights[7] + weights[5] + weights[3] + weights[1];
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|
278 |
axiscoords[1] = weights[7] + weights[6] + weights[3] + weights[2];
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|
279 |
axiscoords[2] = weights[7] + weights[6] + weights[5] + weights[4];
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|
280 |
}
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281 |
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|
282 |
else
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|
283 |
{
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|
284 |
axiscoords[0] = weights[15] + weights[13] + weights[11] + weights[9] +
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|
285 |
weights[7] + weights[5] + weights[3] + weights[1];
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|
286 |
axiscoords[1] = weights[15] + weights[14] + weights[11] + weights[10] +
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|
287 |
weights[7] + weights[6] + weights[3] + weights[2];
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|
288 |
axiscoords[2] = weights[15] + weights[14] + weights[13] + weights[12] +
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|
289 |
weights[7] + weights[6] + weights[5] + weights[4];
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|
290 |
axiscoords[3] = weights[15] + weights[14] + weights[13] + weights[12] +
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|
291 |
weights[11] + weights[10] + weights[9] + weights[8];
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|
292 |
}
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|
293 |
}
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|
294 |
|
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|
295 |
|
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|
296 |
/*************************************************************************/
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|
297 |
/* */
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|
298 |
/* Just a wrapper around T1_Get_Multi_Master to support the different */
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|
299 |
/* arguments needed by the GX var distortable fonts. */
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|
300 |
/* */
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|
301 |
FT_LOCAL_DEF( FT_Error )
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|
302 |
T1_Get_MM_Var( T1_Face face,
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|
303 |
FT_MM_Var* *master )
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|
304 |
{
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|
305 |
FT_Memory memory = face->root.memory;
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|
306 |
FT_MM_Var *mmvar;
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|
307 |
FT_Multi_Master mmaster;
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|
308 |
FT_Error error;
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|
309 |
FT_UInt i;
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|
310 |
FT_Fixed axiscoords[T1_MAX_MM_AXIS];
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|
311 |
PS_Blend blend = face->blend;
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|
|
312 |
|
|
|
313 |
|
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|
314 |
error = T1_Get_Multi_Master( face, &mmaster );
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|
315 |
if ( error )
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|
316 |
goto Exit;
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|
317 |
if ( FT_ALLOC( mmvar,
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|
|
318 |
sizeof ( FT_MM_Var ) +
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|
319 |
mmaster.num_axis * sizeof ( FT_Var_Axis ) ) )
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|
320 |
goto Exit;
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|
321 |
|
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|
322 |
mmvar->num_axis = mmaster.num_axis;
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|
323 |
mmvar->num_designs = mmaster.num_designs;
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|
324 |
mmvar->num_namedstyles = (FT_UInt)-1; /* Does not apply */
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|
325 |
mmvar->axis = (FT_Var_Axis*)&mmvar[1];
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|
326 |
/* Point to axes after MM_Var struct */
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|
327 |
mmvar->namedstyle = NULL;
|
|
|
328 |
|
|
|
329 |
for ( i = 0 ; i < mmaster.num_axis; ++i )
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|
330 |
{
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|
331 |
mmvar->axis[i].name = mmaster.axis[i].name;
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|
332 |
mmvar->axis[i].minimum = INT_TO_FIXED( mmaster.axis[i].minimum);
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|
333 |
mmvar->axis[i].maximum = INT_TO_FIXED( mmaster.axis[i].maximum);
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|
334 |
mmvar->axis[i].def = ( mmvar->axis[i].minimum +
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|
335 |
mmvar->axis[i].maximum ) / 2;
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|
336 |
/* Does not apply. But this value is in range */
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|
337 |
mmvar->axis[i].strid = (FT_UInt)-1; /* Does not apply */
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|
338 |
mmvar->axis[i].tag = (FT_ULong)-1; /* Does not apply */
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|
339 |
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|
340 |
if ( ft_strcmp( mmvar->axis[i].name, "Weight" ) == 0 )
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|
341 |
mmvar->axis[i].tag = FT_MAKE_TAG( 'w', 'g', 'h', 't' );
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|
342 |
else if ( ft_strcmp( mmvar->axis[i].name, "Width" ) == 0 )
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|
343 |
mmvar->axis[i].tag = FT_MAKE_TAG( 'w', 'd', 't', 'h' );
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|
344 |
else if ( ft_strcmp( mmvar->axis[i].name, "OpticalSize" ) == 0 )
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|
345 |
mmvar->axis[i].tag = FT_MAKE_TAG( 'o', 'p', 's', 'z' );
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|
|
346 |
}
|
|
|
347 |
|
|
|
348 |
if ( blend->num_designs == ( 1U << blend->num_axis ) )
|
|
|
349 |
{
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|
|
350 |
mm_weights_unmap( blend->default_weight_vector,
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|
|
351 |
axiscoords,
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|
|
352 |
blend->num_axis );
|
|
|
353 |
|
|
|
354 |
for ( i = 0; i < mmaster.num_axis; ++i )
|
|
|
355 |
mmvar->axis[i].def = mm_axis_unmap( &blend->design_map[i],
|
|
|
356 |
axiscoords[i] );
|
|
|
357 |
}
|
|
|
358 |
|
|
|
359 |
*master = mmvar;
|
|
|
360 |
|
|
|
361 |
Exit:
|
|
|
362 |
return error;
|
|
|
363 |
}
|
|
|
364 |
|
|
|
365 |
|
|
|
366 |
FT_LOCAL_DEF( FT_Error )
|
|
|
367 |
T1_Set_MM_Blend( T1_Face face,
|
|
|
368 |
FT_UInt num_coords,
|
|
|
369 |
FT_Fixed* coords )
|
|
|
370 |
{
|
|
|
371 |
PS_Blend blend = face->blend;
|
|
|
372 |
FT_Error error;
|
|
|
373 |
FT_UInt n, m;
|
|
|
374 |
|
|
|
375 |
|
|
|
376 |
error = T1_Err_Invalid_Argument;
|
|
|
377 |
|
|
|
378 |
if ( blend && blend->num_axis == num_coords )
|
|
|
379 |
{
|
|
|
380 |
/* recompute the weight vector from the blend coordinates */
|
|
|
381 |
error = T1_Err_Ok;
|
|
|
382 |
|
|
|
383 |
for ( n = 0; n < blend->num_designs; n++ )
|
|
|
384 |
{
|
|
|
385 |
FT_Fixed result = 0x10000L; /* 1.0 fixed */
|
|
|
386 |
|
|
|
387 |
|
|
|
388 |
for ( m = 0; m < blend->num_axis; m++ )
|
|
|
389 |
{
|
|
|
390 |
FT_Fixed factor;
|
|
|
391 |
|
|
|
392 |
|
|
|
393 |
/* get current blend axis position */
|
|
|
394 |
factor = coords[m];
|
|
|
395 |
if ( factor < 0 ) factor = 0;
|
|
|
396 |
if ( factor > 0x10000L ) factor = 0x10000L;
|
|
|
397 |
|
|
|
398 |
if ( ( n & ( 1 << m ) ) == 0 )
|
|
|
399 |
factor = 0x10000L - factor;
|
|
|
400 |
|
|
|
401 |
result = FT_MulFix( result, factor );
|
|
|
402 |
}
|
|
|
403 |
blend->weight_vector[n] = result;
|
|
|
404 |
}
|
|
|
405 |
|
|
|
406 |
error = T1_Err_Ok;
|
|
|
407 |
}
|
|
|
408 |
|
|
|
409 |
return error;
|
|
|
410 |
}
|
|
|
411 |
|
|
|
412 |
|
|
|
413 |
FT_LOCAL_DEF( FT_Error )
|
|
|
414 |
T1_Set_MM_Design( T1_Face face,
|
|
|
415 |
FT_UInt num_coords,
|
|
|
416 |
FT_Long* coords )
|
|
|
417 |
{
|
|
|
418 |
PS_Blend blend = face->blend;
|
|
|
419 |
FT_Error error;
|
|
|
420 |
FT_UInt n, p;
|
|
|
421 |
|
|
|
422 |
|
|
|
423 |
error = T1_Err_Invalid_Argument;
|
|
|
424 |
if ( blend && blend->num_axis == num_coords )
|
|
|
425 |
{
|
|
|
426 |
/* compute the blend coordinates through the blend design map */
|
|
|
427 |
FT_Fixed final_blends[T1_MAX_MM_DESIGNS];
|
|
|
428 |
|
|
|
429 |
|
|
|
430 |
for ( n = 0; n < blend->num_axis; n++ )
|
|
|
431 |
{
|
|
|
432 |
FT_Long design = coords[n];
|
|
|
433 |
FT_Fixed the_blend;
|
|
|
434 |
PS_DesignMap map = blend->design_map + n;
|
|
|
435 |
FT_Long* designs = map->design_points;
|
|
|
436 |
FT_Fixed* blends = map->blend_points;
|
|
|
437 |
FT_Int before = -1, after = -1;
|
|
|
438 |
|
|
|
439 |
|
|
|
440 |
for ( p = 0; p < (FT_UInt)map->num_points; p++ )
|
|
|
441 |
{
|
|
|
442 |
FT_Long p_design = designs[p];
|
|
|
443 |
|
|
|
444 |
|
|
|
445 |
/* exact match? */
|
|
|
446 |
if ( design == p_design )
|
|
|
447 |
{
|
|
|
448 |
the_blend = blends[p];
|
|
|
449 |
goto Found;
|
|
|
450 |
}
|
|
|
451 |
|
|
|
452 |
if ( design < p_design )
|
|
|
453 |
{
|
|
|
454 |
after = p;
|
|
|
455 |
break;
|
|
|
456 |
}
|
|
|
457 |
|
|
|
458 |
before = p;
|
|
|
459 |
}
|
|
|
460 |
|
|
|
461 |
/* now interpolate if necessary */
|
|
|
462 |
if ( before < 0 )
|
|
|
463 |
the_blend = blends[0];
|
|
|
464 |
|
|
|
465 |
else if ( after < 0 )
|
|
|
466 |
the_blend = blends[map->num_points - 1];
|
|
|
467 |
|
|
|
468 |
else
|
|
|
469 |
the_blend = FT_MulDiv( design - designs[before],
|
|
|
470 |
blends [after] - blends [before],
|
|
|
471 |
designs[after] - designs[before] );
|
|
|
472 |
|
|
|
473 |
Found:
|
|
|
474 |
final_blends[n] = the_blend;
|
|
|
475 |
}
|
|
|
476 |
|
|
|
477 |
error = T1_Set_MM_Blend( face, num_coords, final_blends );
|
|
|
478 |
}
|
|
|
479 |
|
|
|
480 |
return error;
|
|
|
481 |
}
|
|
|
482 |
|
|
|
483 |
|
|
|
484 |
/*************************************************************************/
|
|
|
485 |
/* */
|
|
|
486 |
/* Just a wrapper around T1_Set_MM_Design to support the different */
|
|
|
487 |
/* arguments needed by the GX var distortable fonts. */
|
|
|
488 |
/* */
|
|
|
489 |
FT_LOCAL_DEF( FT_Error )
|
|
|
490 |
T1_Set_Var_Design( T1_Face face,
|
|
|
491 |
FT_UInt num_coords,
|
|
|
492 |
FT_Fixed* coords )
|
|
|
493 |
{
|
|
|
494 |
FT_Long lcoords[4]; /* maximum axis count is 4 */
|
|
|
495 |
FT_UInt i;
|
|
|
496 |
FT_Error error;
|
|
|
497 |
|
|
|
498 |
|
|
|
499 |
error = T1_Err_Invalid_Argument;
|
|
|
500 |
if ( num_coords <= 4 && num_coords > 0 )
|
|
|
501 |
{
|
|
|
502 |
for ( i = 0; i < num_coords; ++i )
|
|
|
503 |
lcoords[i] = FIXED_TO_INT( coords[i] );
|
|
|
504 |
error = T1_Set_MM_Design( face, num_coords, lcoords );
|
|
|
505 |
}
|
|
|
506 |
|
|
|
507 |
return error;
|
|
|
508 |
}
|
|
|
509 |
|
|
|
510 |
|
|
|
511 |
FT_LOCAL_DEF( void )
|
|
|
512 |
T1_Done_Blend( T1_Face face )
|
|
|
513 |
{
|
|
|
514 |
FT_Memory memory = face->root.memory;
|
|
|
515 |
PS_Blend blend = face->blend;
|
|
|
516 |
|
|
|
517 |
|
|
|
518 |
if ( blend )
|
|
|
519 |
{
|
|
|
520 |
FT_UInt num_designs = blend->num_designs;
|
|
|
521 |
FT_UInt num_axis = blend->num_axis;
|
|
|
522 |
FT_UInt n;
|
|
|
523 |
|
|
|
524 |
|
|
|
525 |
/* release design pos table */
|
|
|
526 |
FT_FREE( blend->design_pos[0] );
|
|
|
527 |
for ( n = 1; n < num_designs; n++ )
|
|
|
528 |
blend->design_pos[n] = 0;
|
|
|
529 |
|
|
|
530 |
/* release blend `private' and `font info' dictionaries */
|
|
|
531 |
FT_FREE( blend->privates[1] );
|
|
|
532 |
FT_FREE( blend->font_infos[1] );
|
|
|
533 |
FT_FREE( blend->bboxes[1] );
|
|
|
534 |
|
|
|
535 |
for ( n = 0; n < num_designs; n++ )
|
|
|
536 |
{
|
|
|
537 |
blend->privates [n] = 0;
|
|
|
538 |
blend->font_infos[n] = 0;
|
|
|
539 |
blend->bboxes [n] = 0;
|
|
|
540 |
}
|
|
|
541 |
|
|
|
542 |
/* release weight vectors */
|
|
|
543 |
FT_FREE( blend->weight_vector );
|
|
|
544 |
blend->default_weight_vector = 0;
|
|
|
545 |
|
|
|
546 |
/* release axis names */
|
|
|
547 |
for ( n = 0; n < num_axis; n++ )
|
|
|
548 |
FT_FREE( blend->axis_names[n] );
|
|
|
549 |
|
|
|
550 |
/* release design map */
|
|
|
551 |
for ( n = 0; n < num_axis; n++ )
|
|
|
552 |
{
|
|
|
553 |
PS_DesignMap dmap = blend->design_map + n;
|
|
|
554 |
|
|
|
555 |
|
|
|
556 |
FT_FREE( dmap->design_points );
|
|
|
557 |
dmap->num_points = 0;
|
|
|
558 |
}
|
|
|
559 |
|
|
|
560 |
FT_FREE( face->blend );
|
|
|
561 |
}
|
|
|
562 |
}
|
|
|
563 |
|
|
|
564 |
|
|
|
565 |
static void
|
|
|
566 |
parse_blend_axis_types( T1_Face face,
|
|
|
567 |
T1_Loader loader )
|
|
|
568 |
{
|
|
|
569 |
T1_TokenRec axis_tokens[T1_MAX_MM_AXIS];
|
|
|
570 |
FT_Int n, num_axis;
|
|
|
571 |
FT_Error error = T1_Err_Ok;
|
|
|
572 |
PS_Blend blend;
|
|
|
573 |
FT_Memory memory;
|
|
|
574 |
|
|
|
575 |
|
|
|
576 |
/* take an array of objects */
|
|
|
577 |
T1_ToTokenArray( &loader->parser, axis_tokens,
|
|
|
578 |
T1_MAX_MM_AXIS, &num_axis );
|
|
|
579 |
if ( num_axis < 0 )
|
|
|
580 |
{
|
|
|
581 |
error = T1_Err_Ignore;
|
|
|
582 |
goto Exit;
|
|
|
583 |
}
|
|
|
584 |
if ( num_axis == 0 || num_axis > T1_MAX_MM_AXIS )
|
|
|
585 |
{
|
|
|
586 |
FT_ERROR(( "parse_blend_axis_types: incorrect number of axes: %d\n",
|
|
|
587 |
num_axis ));
|
|
|
588 |
error = T1_Err_Invalid_File_Format;
|
|
|
589 |
goto Exit;
|
|
|
590 |
}
|
|
|
591 |
|
|
|
592 |
/* allocate blend if necessary */
|
|
|
593 |
error = t1_allocate_blend( face, 0, (FT_UInt)num_axis );
|
|
|
594 |
if ( error )
|
|
|
595 |
goto Exit;
|
|
|
596 |
|
|
|
597 |
blend = face->blend;
|
|
|
598 |
memory = face->root.memory;
|
|
|
599 |
|
|
|
600 |
/* each token is an immediate containing the name of the axis */
|
|
|
601 |
for ( n = 0; n < num_axis; n++ )
|
|
|
602 |
{
|
|
|
603 |
T1_Token token = axis_tokens + n;
|
|
|
604 |
FT_Byte* name;
|
|
|
605 |
FT_PtrDist len;
|
|
|
606 |
|
|
|
607 |
|
|
|
608 |
/* skip first slash, if any */
|
|
|
609 |
if ( token->start[0] == '/' )
|
|
|
610 |
token->start++;
|
|
|
611 |
|
|
|
612 |
len = token->limit - token->start;
|
|
|
613 |
if ( len == 0 )
|
|
|
614 |
{
|
|
|
615 |
error = T1_Err_Invalid_File_Format;
|
|
|
616 |
goto Exit;
|
|
|
617 |
}
|
|
|
618 |
|
|
|
619 |
if ( FT_ALLOC( blend->axis_names[n], len + 1 ) )
|
|
|
620 |
goto Exit;
|
|
|
621 |
|
|
|
622 |
name = (FT_Byte*)blend->axis_names[n];
|
|
|
623 |
FT_MEM_COPY( name, token->start, len );
|
|
|
624 |
name[len] = 0;
|
|
|
625 |
}
|
|
|
626 |
|
|
|
627 |
Exit:
|
|
|
628 |
loader->parser.root.error = error;
|
|
|
629 |
}
|
|
|
630 |
|
|
|
631 |
|
|
|
632 |
static void
|
|
|
633 |
parse_blend_design_positions( T1_Face face,
|
|
|
634 |
T1_Loader loader )
|
|
|
635 |
{
|
|
|
636 |
T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS];
|
|
|
637 |
FT_Int num_designs;
|
|
|
638 |
FT_Int num_axis;
|
|
|
639 |
T1_Parser parser = &loader->parser;
|
|
|
640 |
|
|
|
641 |
FT_Error error = T1_Err_Ok;
|
|
|
642 |
PS_Blend blend;
|
|
|
643 |
|
|
|
644 |
|
|
|
645 |
/* get the array of design tokens -- compute number of designs */
|
|
|
646 |
T1_ToTokenArray( parser, design_tokens,
|
|
|
647 |
T1_MAX_MM_DESIGNS, &num_designs );
|
|
|
648 |
if ( num_designs < 0 )
|
|
|
649 |
{
|
|
|
650 |
error = T1_Err_Ignore;
|
|
|
651 |
goto Exit;
|
|
|
652 |
}
|
|
|
653 |
if ( num_designs == 0 || num_designs > T1_MAX_MM_DESIGNS )
|
|
|
654 |
{
|
|
|
655 |
FT_ERROR(( "parse_blend_design_positions:"
|
|
|
656 |
" incorrect number of designs: %d\n",
|
|
|
657 |
num_designs ));
|
|
|
658 |
error = T1_Err_Invalid_File_Format;
|
|
|
659 |
goto Exit;
|
|
|
660 |
}
|
|
|
661 |
|
|
|
662 |
{
|
|
|
663 |
FT_Byte* old_cursor = parser->root.cursor;
|
|
|
664 |
FT_Byte* old_limit = parser->root.limit;
|
|
|
665 |
FT_Int n;
|
|
|
666 |
|
|
|
667 |
|
|
|
668 |
blend = face->blend;
|
|
|
669 |
num_axis = 0; /* make compiler happy */
|
|
|
670 |
|
|
|
671 |
for ( n = 0; n < num_designs; n++ )
|
|
|
672 |
{
|
|
|
673 |
T1_TokenRec axis_tokens[T1_MAX_MM_AXIS];
|
|
|
674 |
T1_Token token;
|
|
|
675 |
FT_Int axis, n_axis;
|
|
|
676 |
|
|
|
677 |
|
|
|
678 |
/* read axis/coordinates tokens */
|
|
|
679 |
token = design_tokens + n;
|
|
|
680 |
parser->root.cursor = token->start;
|
|
|
681 |
parser->root.limit = token->limit;
|
|
|
682 |
T1_ToTokenArray( parser, axis_tokens, T1_MAX_MM_AXIS, &n_axis );
|
|
|
683 |
|
|
|
684 |
if ( n == 0 )
|
|
|
685 |
{
|
|
|
686 |
if ( n_axis <= 0 || n_axis > T1_MAX_MM_AXIS )
|
|
|
687 |
{
|
|
|
688 |
FT_ERROR(( "parse_blend_design_positions:"
|
|
|
689 |
" invalid number of axes: %d\n",
|
|
|
690 |
n_axis ));
|
|
|
691 |
error = T1_Err_Invalid_File_Format;
|
|
|
692 |
goto Exit;
|
|
|
693 |
}
|
|
|
694 |
|
|
|
695 |
num_axis = n_axis;
|
|
|
696 |
error = t1_allocate_blend( face, num_designs, num_axis );
|
|
|
697 |
if ( error )
|
|
|
698 |
goto Exit;
|
|
|
699 |
blend = face->blend;
|
|
|
700 |
}
|
|
|
701 |
else if ( n_axis != num_axis )
|
|
|
702 |
{
|
|
|
703 |
FT_ERROR(( "parse_blend_design_positions: incorrect table\n" ));
|
|
|
704 |
error = T1_Err_Invalid_File_Format;
|
|
|
705 |
goto Exit;
|
|
|
706 |
}
|
|
|
707 |
|
|
|
708 |
/* now read each axis token into the design position */
|
|
|
709 |
for ( axis = 0; axis < n_axis; axis++ )
|
|
|
710 |
{
|
|
|
711 |
T1_Token token2 = axis_tokens + axis;
|
|
|
712 |
|
|
|
713 |
|
|
|
714 |
parser->root.cursor = token2->start;
|
|
|
715 |
parser->root.limit = token2->limit;
|
|
|
716 |
blend->design_pos[n][axis] = T1_ToFixed( parser, 0 );
|
|
|
717 |
}
|
|
|
718 |
}
|
|
|
719 |
|
|
|
720 |
loader->parser.root.cursor = old_cursor;
|
|
|
721 |
loader->parser.root.limit = old_limit;
|
|
|
722 |
}
|
|
|
723 |
|
|
|
724 |
Exit:
|
|
|
725 |
loader->parser.root.error = error;
|
|
|
726 |
}
|
|
|
727 |
|
|
|
728 |
|
|
|
729 |
static void
|
|
|
730 |
parse_blend_design_map( T1_Face face,
|
|
|
731 |
T1_Loader loader )
|
|
|
732 |
{
|
|
|
733 |
FT_Error error = T1_Err_Ok;
|
|
|
734 |
T1_Parser parser = &loader->parser;
|
|
|
735 |
PS_Blend blend;
|
|
|
736 |
T1_TokenRec axis_tokens[T1_MAX_MM_AXIS];
|
|
|
737 |
FT_Int n, num_axis;
|
|
|
738 |
FT_Byte* old_cursor;
|
|
|
739 |
FT_Byte* old_limit;
|
|
|
740 |
FT_Memory memory = face->root.memory;
|
|
|
741 |
|
|
|
742 |
|
|
|
743 |
T1_ToTokenArray( parser, axis_tokens,
|
|
|
744 |
T1_MAX_MM_AXIS, &num_axis );
|
|
|
745 |
if ( num_axis < 0 )
|
|
|
746 |
{
|
|
|
747 |
error = T1_Err_Ignore;
|
|
|
748 |
goto Exit;
|
|
|
749 |
}
|
|
|
750 |
if ( num_axis == 0 || num_axis > T1_MAX_MM_AXIS )
|
|
|
751 |
{
|
|
|
752 |
FT_ERROR(( "parse_blend_design_map: incorrect number of axes: %d\n",
|
|
|
753 |
num_axis ));
|
|
|
754 |
error = T1_Err_Invalid_File_Format;
|
|
|
755 |
goto Exit;
|
|
|
756 |
}
|
|
|
757 |
|
|
|
758 |
old_cursor = parser->root.cursor;
|
|
|
759 |
old_limit = parser->root.limit;
|
|
|
760 |
|
|
|
761 |
error = t1_allocate_blend( face, 0, num_axis );
|
|
|
762 |
if ( error )
|
|
|
763 |
goto Exit;
|
|
|
764 |
blend = face->blend;
|
|
|
765 |
|
|
|
766 |
/* now read each axis design map */
|
|
|
767 |
for ( n = 0; n < num_axis; n++ )
|
|
|
768 |
{
|
|
|
769 |
PS_DesignMap map = blend->design_map + n;
|
|
|
770 |
T1_Token axis_token;
|
|
|
771 |
T1_TokenRec point_tokens[T1_MAX_MM_MAP_POINTS];
|
|
|
772 |
FT_Int p, num_points;
|
|
|
773 |
|
|
|
774 |
|
|
|
775 |
axis_token = axis_tokens + n;
|
|
|
776 |
|
|
|
777 |
parser->root.cursor = axis_token->start;
|
|
|
778 |
parser->root.limit = axis_token->limit;
|
|
|
779 |
T1_ToTokenArray( parser, point_tokens,
|
|
|
780 |
T1_MAX_MM_MAP_POINTS, &num_points );
|
|
|
781 |
|
|
|
782 |
if ( num_points <= 0 || num_points > T1_MAX_MM_MAP_POINTS )
|
|
|
783 |
{
|
|
|
784 |
FT_ERROR(( "parse_blend_design_map: incorrect table\n" ));
|
|
|
785 |
error = T1_Err_Invalid_File_Format;
|
|
|
786 |
goto Exit;
|
|
|
787 |
}
|
|
|
788 |
|
|
|
789 |
/* allocate design map data */
|
|
|
790 |
if ( FT_NEW_ARRAY( map->design_points, num_points * 2 ) )
|
|
|
791 |
goto Exit;
|
|
|
792 |
map->blend_points = map->design_points + num_points;
|
|
|
793 |
map->num_points = (FT_Byte)num_points;
|
|
|
794 |
|
|
|
795 |
for ( p = 0; p < num_points; p++ )
|
|
|
796 |
{
|
|
|
797 |
T1_Token point_token;
|
|
|
798 |
|
|
|
799 |
|
|
|
800 |
point_token = point_tokens + p;
|
|
|
801 |
|
|
|
802 |
/* don't include delimiting brackets */
|
|
|
803 |
parser->root.cursor = point_token->start + 1;
|
|
|
804 |
parser->root.limit = point_token->limit - 1;
|
|
|
805 |
|
|
|
806 |
map->design_points[p] = T1_ToInt( parser );
|
|
|
807 |
map->blend_points [p] = T1_ToFixed( parser, 0 );
|
|
|
808 |
}
|
|
|
809 |
}
|
|
|
810 |
|
|
|
811 |
parser->root.cursor = old_cursor;
|
|
|
812 |
parser->root.limit = old_limit;
|
|
|
813 |
|
|
|
814 |
Exit:
|
|
|
815 |
parser->root.error = error;
|
|
|
816 |
}
|
|
|
817 |
|
|
|
818 |
|
|
|
819 |
static void
|
|
|
820 |
parse_weight_vector( T1_Face face,
|
|
|
821 |
T1_Loader loader )
|
|
|
822 |
{
|
|
|
823 |
T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS];
|
|
|
824 |
FT_Int num_designs;
|
|
|
825 |
FT_Error error = T1_Err_Ok;
|
|
|
826 |
T1_Parser parser = &loader->parser;
|
|
|
827 |
PS_Blend blend = face->blend;
|
|
|
828 |
T1_Token token;
|
|
|
829 |
FT_Int n;
|
|
|
830 |
FT_Byte* old_cursor;
|
|
|
831 |
FT_Byte* old_limit;
|
|
|
832 |
|
|
|
833 |
|
|
|
834 |
T1_ToTokenArray( parser, design_tokens,
|
|
|
835 |
T1_MAX_MM_DESIGNS, &num_designs );
|
|
|
836 |
if ( num_designs < 0 )
|
|
|
837 |
{
|
|
|
838 |
error = T1_Err_Ignore;
|
|
|
839 |
goto Exit;
|
|
|
840 |
}
|
|
|
841 |
if ( num_designs == 0 || num_designs > T1_MAX_MM_DESIGNS )
|
|
|
842 |
{
|
|
|
843 |
FT_ERROR(( "parse_weight_vector:"
|
|
|
844 |
" incorrect number of designs: %d\n",
|
|
|
845 |
num_designs ));
|
|
|
846 |
error = T1_Err_Invalid_File_Format;
|
|
|
847 |
goto Exit;
|
|
|
848 |
}
|
|
|
849 |
|
|
|
850 |
if ( !blend || !blend->num_designs )
|
|
|
851 |
{
|
|
|
852 |
error = t1_allocate_blend( face, num_designs, 0 );
|
|
|
853 |
if ( error )
|
|
|
854 |
goto Exit;
|
|
|
855 |
blend = face->blend;
|
|
|
856 |
}
|
|
|
857 |
else if ( blend->num_designs != (FT_UInt)num_designs )
|
|
|
858 |
{
|
|
|
859 |
FT_ERROR(( "parse_weight_vector:"
|
|
|
860 |
" /BlendDesignPosition and /WeightVector have\n"
|
|
|
861 |
" "
|
|
|
862 |
" different number of elements\n" ));
|
|
|
863 |
error = T1_Err_Invalid_File_Format;
|
|
|
864 |
goto Exit;
|
|
|
865 |
}
|
|
|
866 |
|
|
|
867 |
old_cursor = parser->root.cursor;
|
|
|
868 |
old_limit = parser->root.limit;
|
|
|
869 |
|
|
|
870 |
for ( n = 0; n < num_designs; n++ )
|
|
|
871 |
{
|
|
|
872 |
token = design_tokens + n;
|
|
|
873 |
parser->root.cursor = token->start;
|
|
|
874 |
parser->root.limit = token->limit;
|
|
|
875 |
|
|
|
876 |
blend->default_weight_vector[n] =
|
|
|
877 |
blend->weight_vector[n] = T1_ToFixed( parser, 0 );
|
|
|
878 |
}
|
|
|
879 |
|
|
|
880 |
parser->root.cursor = old_cursor;
|
|
|
881 |
parser->root.limit = old_limit;
|
|
|
882 |
|
|
|
883 |
Exit:
|
|
|
884 |
parser->root.error = error;
|
|
|
885 |
}
|
|
|
886 |
|
|
|
887 |
|
|
|
888 |
/* e.g., /BuildCharArray [0 0 0 0 0 0 0 0] def */
|
|
|
889 |
/* we're only interested in the number of array elements */
|
|
|
890 |
static void
|
|
|
891 |
parse_buildchar( T1_Face face,
|
|
|
892 |
T1_Loader loader )
|
|
|
893 |
{
|
|
|
894 |
face->len_buildchar = T1_ToFixedArray( &loader->parser, 0, NULL, 0 );
|
|
|
895 |
|
|
|
896 |
return;
|
|
|
897 |
}
|
|
|
898 |
|
|
|
899 |
|
|
|
900 |
#endif /* T1_CONFIG_OPTION_NO_MM_SUPPORT */
|
|
|
901 |
|
|
|
902 |
|
|
|
903 |
|
|
|
904 |
|
|
|
905 |
/*************************************************************************/
|
|
|
906 |
/*************************************************************************/
|
|
|
907 |
/***** *****/
|
|
|
908 |
/***** TYPE 1 SYMBOL PARSING *****/
|
|
|
909 |
/***** *****/
|
|
|
910 |
/*************************************************************************/
|
|
|
911 |
/*************************************************************************/
|
|
|
912 |
|
|
|
913 |
static FT_Error
|
|
|
914 |
t1_load_keyword( T1_Face face,
|
|
|
915 |
T1_Loader loader,
|
|
|
916 |
const T1_Field field )
|
|
|
917 |
{
|
|
|
918 |
FT_Error error;
|
|
|
919 |
void* dummy_object;
|
|
|
920 |
void** objects;
|
|
|
921 |
FT_UInt max_objects;
|
|
|
922 |
PS_Blend blend = face->blend;
|
|
|
923 |
|
|
|
924 |
|
|
|
925 |
/* if the keyword has a dedicated callback, call it */
|
|
|
926 |
if ( field->type == T1_FIELD_TYPE_CALLBACK )
|
|
|
927 |
{
|
|
|
928 |
field->reader( (FT_Face)face, loader );
|
|
|
929 |
error = loader->parser.root.error;
|
|
|
930 |
goto Exit;
|
|
|
931 |
}
|
|
|
932 |
|
|
|
933 |
/* now, the keyword is either a simple field, or a table of fields; */
|
|
|
934 |
/* we are now going to take care of it */
|
|
|
935 |
switch ( field->location )
|
|
|
936 |
{
|
|
|
937 |
case T1_FIELD_LOCATION_FONT_INFO:
|
|
|
938 |
dummy_object = &face->type1.font_info;
|
|
|
939 |
objects = &dummy_object;
|
|
|
940 |
max_objects = 0;
|
|
|
941 |
|
|
|
942 |
if ( blend )
|
|
|
943 |
{
|
|
|
944 |
objects = (void**)blend->font_infos;
|
|
|
945 |
max_objects = blend->num_designs;
|
|
|
946 |
}
|
|
|
947 |
break;
|
|
|
948 |
|
|
|
949 |
case T1_FIELD_LOCATION_FONT_EXTRA:
|
|
|
950 |
dummy_object = &face->type1.font_extra;
|
|
|
951 |
objects = &dummy_object;
|
|
|
952 |
max_objects = 0;
|
|
|
953 |
break;
|
|
|
954 |
|
|
|
955 |
case T1_FIELD_LOCATION_PRIVATE:
|
|
|
956 |
dummy_object = &face->type1.private_dict;
|
|
|
957 |
objects = &dummy_object;
|
|
|
958 |
max_objects = 0;
|
|
|
959 |
|
|
|
960 |
if ( blend )
|
|
|
961 |
{
|
|
|
962 |
objects = (void**)blend->privates;
|
|
|
963 |
max_objects = blend->num_designs;
|
|
|
964 |
}
|
|
|
965 |
break;
|
|
|
966 |
|
|
|
967 |
case T1_FIELD_LOCATION_BBOX:
|
|
|
968 |
dummy_object = &face->type1.font_bbox;
|
|
|
969 |
objects = &dummy_object;
|
|
|
970 |
max_objects = 0;
|
|
|
971 |
|
|
|
972 |
if ( blend )
|
|
|
973 |
{
|
|
|
974 |
objects = (void**)blend->bboxes;
|
|
|
975 |
max_objects = blend->num_designs;
|
|
|
976 |
}
|
|
|
977 |
break;
|
|
|
978 |
|
|
|
979 |
case T1_FIELD_LOCATION_LOADER:
|
|
|
980 |
dummy_object = loader;
|
|
|
981 |
objects = &dummy_object;
|
|
|
982 |
max_objects = 0;
|
|
|
983 |
break;
|
|
|
984 |
|
|
|
985 |
case T1_FIELD_LOCATION_FACE:
|
|
|
986 |
dummy_object = face;
|
|
|
987 |
objects = &dummy_object;
|
|
|
988 |
max_objects = 0;
|
|
|
989 |
break;
|
|
|
990 |
|
|
|
991 |
#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
|
|
|
992 |
case T1_FIELD_LOCATION_BLEND:
|
|
|
993 |
dummy_object = face->blend;
|
|
|
994 |
objects = &dummy_object;
|
|
|
995 |
max_objects = 0;
|
|
|
996 |
break;
|
|
|
997 |
#endif
|
|
|
998 |
|
|
|
999 |
default:
|
|
|
1000 |
dummy_object = &face->type1;
|
|
|
1001 |
objects = &dummy_object;
|
|
|
1002 |
max_objects = 0;
|
|
|
1003 |
}
|
|
|
1004 |
|
|
|
1005 |
if ( field->type == T1_FIELD_TYPE_INTEGER_ARRAY ||
|
|
|
1006 |
field->type == T1_FIELD_TYPE_FIXED_ARRAY )
|
|
|
1007 |
error = T1_Load_Field_Table( &loader->parser, field,
|
|
|
1008 |
objects, max_objects, 0 );
|
|
|
1009 |
else
|
|
|
1010 |
error = T1_Load_Field( &loader->parser, field,
|
|
|
1011 |
objects, max_objects, 0 );
|
|
|
1012 |
|
|
|
1013 |
Exit:
|
|
|
1014 |
return error;
|
|
|
1015 |
}
|
|
|
1016 |
|
|
|
1017 |
|
|
|
1018 |
static void
|
|
|
1019 |
parse_private( T1_Face face,
|
|
|
1020 |
T1_Loader loader )
|
|
|
1021 |
{
|
|
|
1022 |
FT_UNUSED( face );
|
|
|
1023 |
|
|
|
1024 |
loader->keywords_encountered |= T1_PRIVATE;
|
|
|
1025 |
}
|
|
|
1026 |
|
|
|
1027 |
|
|
|
1028 |
static int
|
|
|
1029 |
read_binary_data( T1_Parser parser,
|
|
|
1030 |
FT_Long* size,
|
|
|
1031 |
FT_Byte** base )
|
|
|
1032 |
{
|
|
|
1033 |
FT_Byte* cur;
|
|
|
1034 |
FT_Byte* limit = parser->root.limit;
|
|
|
1035 |
|
|
|
1036 |
|
|
|
1037 |
/* the binary data has one of the following formats */
|
|
|
1038 |
/* */
|
|
|
1039 |
/* `size' [white*] RD white ....... ND */
|
|
|
1040 |
/* `size' [white*] -| white ....... |- */
|
|
|
1041 |
/* */
|
|
|
1042 |
|
|
|
1043 |
T1_Skip_Spaces( parser );
|
|
|
1044 |
|
|
|
1045 |
cur = parser->root.cursor;
|
|
|
1046 |
|
|
|
1047 |
if ( cur < limit && ft_isdigit( *cur ) )
|
|
|
1048 |
{
|
|
|
1049 |
FT_Long s = T1_ToInt( parser );
|
|
|
1050 |
|
|
|
1051 |
|
|
|
1052 |
T1_Skip_PS_Token( parser ); /* `RD' or `-|' or something else */
|
|
|
1053 |
|
|
|
1054 |
/* there is only one whitespace char after the */
|
|
|
1055 |
/* `RD' or `-|' token */
|
|
|
1056 |
*base = parser->root.cursor + 1;
|
|
|
1057 |
|
|
|
1058 |
if ( s >= 0 && s < limit - *base )
|
|
|
1059 |
{
|
|
|
1060 |
parser->root.cursor += s + 1;
|
|
|
1061 |
*size = s;
|
|
|
1062 |
return !parser->root.error;
|
|
|
1063 |
}
|
|
|
1064 |
}
|
|
|
1065 |
|
|
|
1066 |
FT_ERROR(( "read_binary_data: invalid size field\n" ));
|
|
|
1067 |
parser->root.error = T1_Err_Invalid_File_Format;
|
|
|
1068 |
return 0;
|
|
|
1069 |
}
|
|
|
1070 |
|
|
|
1071 |
|
|
|
1072 |
/* We now define the routines to handle the `/Encoding', `/Subrs', */
|
|
|
1073 |
/* and `/CharStrings' dictionaries. */
|
|
|
1074 |
|
|
|
1075 |
static void
|
|
|
1076 |
parse_font_matrix( T1_Face face,
|
|
|
1077 |
T1_Loader loader )
|
|
|
1078 |
{
|
|
|
1079 |
T1_Parser parser = &loader->parser;
|
|
|
1080 |
FT_Matrix* matrix = &face->type1.font_matrix;
|
|
|
1081 |
FT_Vector* offset = &face->type1.font_offset;
|
|
|
1082 |
FT_Face root = (FT_Face)&face->root;
|
|
|
1083 |
FT_Fixed temp[6];
|
|
|
1084 |
FT_Fixed temp_scale;
|
|
|
1085 |
FT_Int result;
|
|
|
1086 |
|
|
|
1087 |
|
|
|
1088 |
result = T1_ToFixedArray( parser, 6, temp, 3 );
|
|
|
1089 |
|
|
|
1090 |
if ( result < 0 )
|
|
|
1091 |
{
|
|
|
1092 |
parser->root.error = T1_Err_Invalid_File_Format;
|
|
|
1093 |
return;
|
|
|
1094 |
}
|
|
|
1095 |
|
|
|
1096 |
temp_scale = FT_ABS( temp[3] );
|
|
|
1097 |
|
|
|
1098 |
if ( temp_scale == 0 )
|
|
|
1099 |
{
|
|
|
1100 |
FT_ERROR(( "parse_font_matrix: invalid font matrix\n" ));
|
|
|
1101 |
parser->root.error = T1_Err_Invalid_File_Format;
|
|
|
1102 |
return;
|
|
|
1103 |
}
|
|
|
1104 |
|
|
|
1105 |
/* Set Units per EM based on FontMatrix values. We set the value to */
|
|
|
1106 |
/* 1000 / temp_scale, because temp_scale was already multiplied by */
|
|
|
1107 |
/* 1000 (in t1_tofixed, from psobjs.c). */
|
|
|
1108 |
|
|
|
1109 |
root->units_per_EM = (FT_UShort)( FT_DivFix( 1000 * 0x10000L,
|
|
|
1110 |
temp_scale ) >> 16 );
|
|
|
1111 |
|
|
|
1112 |
/* we need to scale the values by 1.0/temp_scale */
|
|
|
1113 |
if ( temp_scale != 0x10000L )
|
|
|
1114 |
{
|
|
|
1115 |
temp[0] = FT_DivFix( temp[0], temp_scale );
|
|
|
1116 |
temp[1] = FT_DivFix( temp[1], temp_scale );
|
|
|
1117 |
temp[2] = FT_DivFix( temp[2], temp_scale );
|
|
|
1118 |
temp[4] = FT_DivFix( temp[4], temp_scale );
|
|
|
1119 |
temp[5] = FT_DivFix( temp[5], temp_scale );
|
|
|
1120 |
temp[3] = temp[3] < 0 ? -0x10000L : 0x10000L;
|
|
|
1121 |
}
|
|
|
1122 |
|
|
|
1123 |
matrix->xx = temp[0];
|
|
|
1124 |
matrix->yx = temp[1];
|
|
|
1125 |
matrix->xy = temp[2];
|
|
|
1126 |
matrix->yy = temp[3];
|
|
|
1127 |
|
|
|
1128 |
/* note that the offsets must be expressed in integer font units */
|
|
|
1129 |
offset->x = temp[4] >> 16;
|
|
|
1130 |
offset->y = temp[5] >> 16;
|
|
|
1131 |
}
|
|
|
1132 |
|
|
|
1133 |
|
|
|
1134 |
static void
|
|
|
1135 |
parse_encoding( T1_Face face,
|
|
|
1136 |
T1_Loader loader )
|
|
|
1137 |
{
|
|
|
1138 |
T1_Parser parser = &loader->parser;
|
|
|
1139 |
FT_Byte* cur;
|
|
|
1140 |
FT_Byte* limit = parser->root.limit;
|
|
|
1141 |
|
|
|
1142 |
PSAux_Service psaux = (PSAux_Service)face->psaux;
|
|
|
1143 |
|
|
|
1144 |
|
|
|
1145 |
T1_Skip_Spaces( parser );
|
|
|
1146 |
cur = parser->root.cursor;
|
|
|
1147 |
if ( cur >= limit )
|
|
|
1148 |
{
|
|
|
1149 |
FT_ERROR(( "parse_encoding: out of bounds\n" ));
|
|
|
1150 |
parser->root.error = T1_Err_Invalid_File_Format;
|
|
|
1151 |
return;
|
|
|
1152 |
}
|
|
|
1153 |
|
|
|
1154 |
/* if we have a number or `[', the encoding is an array, */
|
|
|
1155 |
/* and we must load it now */
|
|
|
1156 |
if ( ft_isdigit( *cur ) || *cur == '[' )
|
|
|
1157 |
{
|
|
|
1158 |
T1_Encoding encode = &face->type1.encoding;
|
|
|
1159 |
FT_Int count, n;
|
|
|
1160 |
PS_Table char_table = &loader->encoding_table;
|
|
|
1161 |
FT_Memory memory = parser->root.memory;
|
|
|
1162 |
FT_Error error;
|
|
|
1163 |
FT_Bool only_immediates = 0;
|
|
|
1164 |
|
|
|
1165 |
|
|
|
1166 |
/* read the number of entries in the encoding; should be 256 */
|
|
|
1167 |
if ( *cur == '[' )
|
|
|
1168 |
{
|
|
|
1169 |
count = 256;
|
|
|
1170 |
only_immediates = 1;
|
|
|
1171 |
parser->root.cursor++;
|
|
|
1172 |
}
|
|
|
1173 |
else
|
|
|
1174 |
count = (FT_Int)T1_ToInt( parser );
|
|
|
1175 |
|
|
|
1176 |
T1_Skip_Spaces( parser );
|
|
|
1177 |
if ( parser->root.cursor >= limit )
|
|
|
1178 |
return;
|
|
|
1179 |
|
|
|
1180 |
/* we use a T1_Table to store our charnames */
|
|
|
1181 |
loader->num_chars = encode->num_chars = count;
|
|
|
1182 |
if ( FT_NEW_ARRAY( encode->char_index, count ) ||
|
|
|
1183 |
FT_NEW_ARRAY( encode->char_name, count ) ||
|
|
|
1184 |
FT_SET_ERROR( psaux->ps_table_funcs->init(
|
|
|
1185 |
char_table, count, memory ) ) )
|
|
|
1186 |
{
|
|
|
1187 |
parser->root.error = error;
|
|
|
1188 |
return;
|
|
|
1189 |
}
|
|
|
1190 |
|
|
|
1191 |
/* We need to `zero' out encoding_table.elements */
|
|
|
1192 |
for ( n = 0; n < count; n++ )
|
|
|
1193 |
{
|
|
|
1194 |
char* notdef = (char *)".notdef";
|
|
|
1195 |
|
|
|
1196 |
|
|
|
1197 |
T1_Add_Table( char_table, n, notdef, 8 );
|
|
|
1198 |
}
|
|
|
1199 |
|
|
|
1200 |
/* Now we need to read records of the form */
|
|
|
1201 |
/* */
|
|
|
1202 |
/* ... charcode /charname ... */
|
|
|
1203 |
/* */
|
|
|
1204 |
/* for each entry in our table. */
|
|
|
1205 |
/* */
|
|
|
1206 |
/* We simply look for a number followed by an immediate */
|
|
|
1207 |
/* name. Note that this ignores correctly the sequence */
|
|
|
1208 |
/* that is often seen in type1 fonts: */
|
|
|
1209 |
/* */
|
|
|
1210 |
/* 0 1 255 { 1 index exch /.notdef put } for dup */
|
|
|
1211 |
/* */
|
|
|
1212 |
/* used to clean the encoding array before anything else. */
|
|
|
1213 |
/* */
|
|
|
1214 |
/* Alternatively, if the array is directly given as */
|
|
|
1215 |
/* */
|
|
|
1216 |
/* /Encoding [ ... ] */
|
|
|
1217 |
/* */
|
|
|
1218 |
/* we only read immediates. */
|
|
|
1219 |
|
|
|
1220 |
n = 0;
|
|
|
1221 |
T1_Skip_Spaces( parser );
|
|
|
1222 |
|
|
|
1223 |
while ( parser->root.cursor < limit )
|
|
|
1224 |
{
|
|
|
1225 |
cur = parser->root.cursor;
|
|
|
1226 |
|
|
|
1227 |
/* we stop when we encounter a `def' or `]' */
|
|
|
1228 |
if ( *cur == 'd' && cur + 3 < limit )
|
|
|
1229 |
{
|
|
|
1230 |
if ( cur[1] == 'e' &&
|
|
|
1231 |
cur[2] == 'f' &&
|
|
|
1232 |
IS_PS_DELIM( cur[3] ) )
|
|
|
1233 |
{
|
|
|
1234 |
FT_TRACE6(( "encoding end\n" ));
|
|
|
1235 |
cur += 3;
|
|
|
1236 |
break;
|
|
|
1237 |
}
|
|
|
1238 |
}
|
|
|
1239 |
if ( *cur == ']' )
|
|
|
1240 |
{
|
|
|
1241 |
FT_TRACE6(( "encoding end\n" ));
|
|
|
1242 |
cur++;
|
|
|
1243 |
break;
|
|
|
1244 |
}
|
|
|
1245 |
|
|
|
1246 |
/* check whether we've found an entry */
|
|
|
1247 |
if ( ft_isdigit( *cur ) || only_immediates )
|
|
|
1248 |
{
|
|
|
1249 |
FT_Int charcode;
|
|
|
1250 |
|
|
|
1251 |
|
|
|
1252 |
if ( only_immediates )
|
|
|
1253 |
charcode = n;
|
|
|
1254 |
else
|
|
|
1255 |
{
|
|
|
1256 |
charcode = (FT_Int)T1_ToInt( parser );
|
|
|
1257 |
T1_Skip_Spaces( parser );
|
|
|
1258 |
}
|
|
|
1259 |
|
|
|
1260 |
cur = parser->root.cursor;
|
|
|
1261 |
|
|
|
1262 |
if ( *cur == '/' && cur + 2 < limit && n < count )
|
|
|
1263 |
{
|
|
|
1264 |
FT_PtrDist len;
|
|
|
1265 |
|
|
|
1266 |
|
|
|
1267 |
cur++;
|
|
|
1268 |
|
|
|
1269 |
parser->root.cursor = cur;
|
|
|
1270 |
T1_Skip_PS_Token( parser );
|
|
|
1271 |
if ( parser->root.error )
|
|
|
1272 |
return;
|
|
|
1273 |
|
|
|
1274 |
len = parser->root.cursor - cur;
|
|
|
1275 |
|
|
|
1276 |
parser->root.error = T1_Add_Table( char_table, charcode,
|
|
|
1277 |
cur, len + 1 );
|
|
|
1278 |
if ( parser->root.error )
|
|
|
1279 |
return;
|
|
|
1280 |
char_table->elements[charcode][len] = '\0';
|
|
|
1281 |
|
|
|
1282 |
n++;
|
|
|
1283 |
}
|
|
|
1284 |
else if ( only_immediates )
|
|
|
1285 |
{
|
|
|
1286 |
/* Since the current position is not updated for */
|
|
|
1287 |
/* immediates-only mode we would get an infinite loop if */
|
|
|
1288 |
/* we don't do anything here. */
|
|
|
1289 |
/* */
|
|
|
1290 |
/* This encoding array is not valid according to the type1 */
|
|
|
1291 |
/* specification (it might be an encoding for a CID type1 */
|
|
|
1292 |
/* font, however), so we conclude that this font is NOT a */
|
|
|
1293 |
/* type1 font. */
|
|
|
1294 |
parser->root.error = FT_Err_Unknown_File_Format;
|
|
|
1295 |
return;
|
|
|
1296 |
}
|
|
|
1297 |
}
|
|
|
1298 |
else
|
|
|
1299 |
{
|
|
|
1300 |
T1_Skip_PS_Token( parser );
|
|
|
1301 |
if ( parser->root.error )
|
|
|
1302 |
return;
|
|
|
1303 |
}
|
|
|
1304 |
|
|
|
1305 |
T1_Skip_Spaces( parser );
|
|
|
1306 |
}
|
|
|
1307 |
|
|
|
1308 |
face->type1.encoding_type = T1_ENCODING_TYPE_ARRAY;
|
|
|
1309 |
parser->root.cursor = cur;
|
|
|
1310 |
}
|
|
|
1311 |
|
|
|
1312 |
/* Otherwise, we should have either `StandardEncoding', */
|
|
|
1313 |
/* `ExpertEncoding', or `ISOLatin1Encoding' */
|
|
|
1314 |
else
|
|
|
1315 |
{
|
|
|
1316 |
if ( cur + 17 < limit &&
|
|
|
1317 |
ft_strncmp( (const char*)cur, "StandardEncoding", 16 ) == 0 )
|
|
|
1318 |
face->type1.encoding_type = T1_ENCODING_TYPE_STANDARD;
|
|
|
1319 |
|
|
|
1320 |
else if ( cur + 15 < limit &&
|
|
|
1321 |
ft_strncmp( (const char*)cur, "ExpertEncoding", 14 ) == 0 )
|
|
|
1322 |
face->type1.encoding_type = T1_ENCODING_TYPE_EXPERT;
|
|
|
1323 |
|
|
|
1324 |
else if ( cur + 18 < limit &&
|
|
|
1325 |
ft_strncmp( (const char*)cur, "ISOLatin1Encoding", 17 ) == 0 )
|
|
|
1326 |
face->type1.encoding_type = T1_ENCODING_TYPE_ISOLATIN1;
|
|
|
1327 |
|
|
|
1328 |
else
|
|
|
1329 |
parser->root.error = T1_Err_Ignore;
|
|
|
1330 |
}
|
|
|
1331 |
}
|
|
|
1332 |
|
|
|
1333 |
|
|
|
1334 |
static void
|
|
|
1335 |
parse_subrs( T1_Face face,
|
|
|
1336 |
T1_Loader loader )
|
|
|
1337 |
{
|
|
|
1338 |
T1_Parser parser = &loader->parser;
|
|
|
1339 |
PS_Table table = &loader->subrs;
|
|
|
1340 |
FT_Memory memory = parser->root.memory;
|
|
|
1341 |
FT_Error error;
|
|
|
1342 |
FT_Int num_subrs;
|
|
|
1343 |
|
|
|
1344 |
PSAux_Service psaux = (PSAux_Service)face->psaux;
|
|
|
1345 |
|
|
|
1346 |
|
|
|
1347 |
T1_Skip_Spaces( parser );
|
|
|
1348 |
|
|
|
1349 |
/* test for empty array */
|
|
|
1350 |
if ( parser->root.cursor < parser->root.limit &&
|
|
|
1351 |
*parser->root.cursor == '[' )
|
|
|
1352 |
{
|
|
|
1353 |
T1_Skip_PS_Token( parser );
|
|
|
1354 |
T1_Skip_Spaces ( parser );
|
|
|
1355 |
if ( parser->root.cursor >= parser->root.limit ||
|
|
|
1356 |
*parser->root.cursor != ']' )
|
|
|
1357 |
parser->root.error = T1_Err_Invalid_File_Format;
|
|
|
1358 |
return;
|
|
|
1359 |
}
|
|
|
1360 |
|
|
|
1361 |
num_subrs = (FT_Int)T1_ToInt( parser );
|
|
|
1362 |
|
|
|
1363 |
/* position the parser right before the `dup' of the first subr */
|
|
|
1364 |
T1_Skip_PS_Token( parser ); /* `array' */
|
|
|
1365 |
if ( parser->root.error )
|
|
|
1366 |
return;
|
|
|
1367 |
T1_Skip_Spaces( parser );
|
|
|
1368 |
|
|
|
1369 |
/* initialize subrs array -- with synthetic fonts it is possible */
|
|
|
1370 |
/* we get here twice */
|
|
|
1371 |
if ( !loader->num_subrs )
|
|
|
1372 |
{
|
|
|
1373 |
error = psaux->ps_table_funcs->init( table, num_subrs, memory );
|
|
|
1374 |
if ( error )
|
|
|
1375 |
goto Fail;
|
|
|
1376 |
}
|
|
|
1377 |
|
|
|
1378 |
/* the format is simple: */
|
|
|
1379 |
/* */
|
|
|
1380 |
/* `index' + binary data */
|
|
|
1381 |
/* */
|
|
|
1382 |
for (;;)
|
|
|
1383 |
{
|
|
|
1384 |
FT_Long idx, size;
|
|
|
1385 |
FT_Byte* base;
|
|
|
1386 |
|
|
|
1387 |
|
|
|
1388 |
/* If the next token isn't `dup' we are done. */
|
|
|
1389 |
if ( ft_strncmp( (char*)parser->root.cursor, "dup", 3 ) != 0 )
|
|
|
1390 |
break;
|
|
|
1391 |
|
|
|
1392 |
T1_Skip_PS_Token( parser ); /* `dup' */
|
|
|
1393 |
|
|
|
1394 |
idx = T1_ToInt( parser );
|
|
|
1395 |
|
|
|
1396 |
if ( !read_binary_data( parser, &size, &base ) )
|
|
|
1397 |
return;
|
|
|
1398 |
|
|
|
1399 |
/* The binary string is followed by one token, e.g. `NP' */
|
|
|
1400 |
/* (bound to `noaccess put') or by two separate tokens: */
|
|
|
1401 |
/* `noaccess' & `put'. We position the parser right */
|
|
|
1402 |
/* before the next `dup', if any. */
|
|
|
1403 |
T1_Skip_PS_Token( parser ); /* `NP' or `|' or `noaccess' */
|
|
|
1404 |
if ( parser->root.error )
|
|
|
1405 |
return;
|
|
|
1406 |
T1_Skip_Spaces ( parser );
|
|
|
1407 |
|
|
|
1408 |
if ( ft_strncmp( (char*)parser->root.cursor, "put", 3 ) == 0 )
|
|
|
1409 |
{
|
|
|
1410 |
T1_Skip_PS_Token( parser ); /* skip `put' */
|
|
|
1411 |
T1_Skip_Spaces ( parser );
|
|
|
1412 |
}
|
|
|
1413 |
|
|
|
1414 |
/* with synthetic fonts it is possible we get here twice */
|
|
|
1415 |
if ( loader->num_subrs )
|
|
|
1416 |
continue;
|
|
|
1417 |
|
|
|
1418 |
/* some fonts use a value of -1 for lenIV to indicate that */
|
|
|
1419 |
/* the charstrings are unencoded */
|
|
|
1420 |
/* */
|
|
|
1421 |
/* thanks to Tom Kacvinsky for pointing this out */
|
|
|
1422 |
/* */
|
|
|
1423 |
if ( face->type1.private_dict.lenIV >= 0 )
|
|
|
1424 |
{
|
|
|
1425 |
FT_Byte* temp;
|
|
|
1426 |
|
|
|
1427 |
|
|
|
1428 |
/* some fonts define empty subr records -- this is not totally */
|
|
|
1429 |
/* compliant to the specification (which says they should at */
|
|
|
1430 |
/* least contain a `return'), but we support them anyway */
|
|
|
1431 |
if ( size < face->type1.private_dict.lenIV )
|
|
|
1432 |
{
|
|
|
1433 |
error = T1_Err_Invalid_File_Format;
|
|
|
1434 |
goto Fail;
|
|
|
1435 |
}
|
|
|
1436 |
|
|
|
1437 |
/* t1_decrypt() shouldn't write to base -- make temporary copy */
|
|
|
1438 |
if ( FT_ALLOC( temp, size ) )
|
|
|
1439 |
goto Fail;
|
|
|
1440 |
FT_MEM_COPY( temp, base, size );
|
|
|
1441 |
psaux->t1_decrypt( temp, size, 4330 );
|
|
|
1442 |
size -= face->type1.private_dict.lenIV;
|
|
|
1443 |
error = T1_Add_Table( table, (FT_Int)idx,
|
|
|
1444 |
temp + face->type1.private_dict.lenIV, size );
|
|
|
1445 |
FT_FREE( temp );
|
|
|
1446 |
}
|
|
|
1447 |
else
|
|
|
1448 |
error = T1_Add_Table( table, (FT_Int)idx, base, size );
|
|
|
1449 |
if ( error )
|
|
|
1450 |
goto Fail;
|
|
|
1451 |
}
|
|
|
1452 |
|
|
|
1453 |
if ( !loader->num_subrs )
|
|
|
1454 |
loader->num_subrs = num_subrs;
|
|
|
1455 |
|
|
|
1456 |
return;
|
|
|
1457 |
|
|
|
1458 |
Fail:
|
|
|
1459 |
parser->root.error = error;
|
|
|
1460 |
}
|
|
|
1461 |
|
|
|
1462 |
|
|
|
1463 |
#define TABLE_EXTEND 5
|
|
|
1464 |
|
|
|
1465 |
|
|
|
1466 |
static void
|
|
|
1467 |
parse_charstrings( T1_Face face,
|
|
|
1468 |
T1_Loader loader )
|
|
|
1469 |
{
|
|
|
1470 |
T1_Parser parser = &loader->parser;
|
|
|
1471 |
PS_Table code_table = &loader->charstrings;
|
|
|
1472 |
PS_Table name_table = &loader->glyph_names;
|
|
|
1473 |
PS_Table swap_table = &loader->swap_table;
|
|
|
1474 |
FT_Memory memory = parser->root.memory;
|
|
|
1475 |
FT_Error error;
|
|
|
1476 |
|
|
|
1477 |
PSAux_Service psaux = (PSAux_Service)face->psaux;
|
|
|
1478 |
|
|
|
1479 |
FT_Byte* cur;
|
|
|
1480 |
FT_Byte* limit = parser->root.limit;
|
|
|
1481 |
FT_Int n, num_glyphs;
|
|
|
1482 |
FT_UInt notdef_index = 0;
|
|
|
1483 |
FT_Byte notdef_found = 0;
|
|
|
1484 |
|
|
|
1485 |
|
|
|
1486 |
num_glyphs = (FT_Int)T1_ToInt( parser );
|
|
|
1487 |
/* some fonts like Optima-Oblique not only define the /CharStrings */
|
|
|
1488 |
/* array but access it also */
|
|
|
1489 |
if ( num_glyphs == 0 || parser->root.error )
|
|
|
1490 |
return;
|
|
|
1491 |
|
|
|
1492 |
/* initialize tables, leaving space for addition of .notdef, */
|
|
|
1493 |
/* if necessary, and a few other glyphs to handle buggy */
|
|
|
1494 |
/* fonts which have more glyphs than specified. */
|
|
|
1495 |
|
|
|
1496 |
/* for some non-standard fonts like `Optima' which provides */
|
|
|
1497 |
/* different outlines depending on the resolution it is */
|
|
|
1498 |
/* possible to get here twice */
|
|
|
1499 |
if ( !loader->num_glyphs )
|
|
|
1500 |
{
|
|
|
1501 |
error = psaux->ps_table_funcs->init(
|
|
|
1502 |
code_table, num_glyphs + 1 + TABLE_EXTEND, memory );
|
|
|
1503 |
if ( error )
|
|
|
1504 |
goto Fail;
|
|
|
1505 |
|
|
|
1506 |
error = psaux->ps_table_funcs->init(
|
|
|
1507 |
name_table, num_glyphs + 1 + TABLE_EXTEND, memory );
|
|
|
1508 |
if ( error )
|
|
|
1509 |
goto Fail;
|
|
|
1510 |
|
|
|
1511 |
/* Initialize table for swapping index notdef_index and */
|
|
|
1512 |
/* index 0 names and codes (if necessary). */
|
|
|
1513 |
|
|
|
1514 |
error = psaux->ps_table_funcs->init( swap_table, 4, memory );
|
|
|
1515 |
if ( error )
|
|
|
1516 |
goto Fail;
|
|
|
1517 |
}
|
|
|
1518 |
|
|
|
1519 |
n = 0;
|
|
|
1520 |
|
|
|
1521 |
for (;;)
|
|
|
1522 |
{
|
|
|
1523 |
FT_Long size;
|
|
|
1524 |
FT_Byte* base;
|
|
|
1525 |
|
|
|
1526 |
|
|
|
1527 |
/* the format is simple: */
|
|
|
1528 |
/* `/glyphname' + binary data */
|
|
|
1529 |
|
|
|
1530 |
T1_Skip_Spaces( parser );
|
|
|
1531 |
|
|
|
1532 |
cur = parser->root.cursor;
|
|
|
1533 |
if ( cur >= limit )
|
|
|
1534 |
break;
|
|
|
1535 |
|
|
|
1536 |
/* we stop when we find a `def' or `end' keyword */
|
|
|
1537 |
if ( cur + 3 < limit && IS_PS_DELIM( cur[3] ) )
|
|
|
1538 |
{
|
|
|
1539 |
if ( cur[0] == 'd' &&
|
|
|
1540 |
cur[1] == 'e' &&
|
|
|
1541 |
cur[2] == 'f' )
|
|
|
1542 |
{
|
|
|
1543 |
/* There are fonts which have this: */
|
|
|
1544 |
/* */
|
|
|
1545 |
/* /CharStrings 118 dict def */
|
|
|
1546 |
/* Private begin */
|
|
|
1547 |
/* CharStrings begin */
|
|
|
1548 |
/* ... */
|
|
|
1549 |
/* */
|
|
|
1550 |
/* To catch this we ignore `def' if */
|
|
|
1551 |
/* no charstring has actually been */
|
|
|
1552 |
/* seen. */
|
|
|
1553 |
if ( n )
|
|
|
1554 |
break;
|
|
|
1555 |
}
|
|
|
1556 |
|
|
|
1557 |
if ( cur[0] == 'e' &&
|
|
|
1558 |
cur[1] == 'n' &&
|
|
|
1559 |
cur[2] == 'd' )
|
|
|
1560 |
break;
|
|
|
1561 |
}
|
|
|
1562 |
|
|
|
1563 |
T1_Skip_PS_Token( parser );
|
|
|
1564 |
if ( parser->root.error )
|
|
|
1565 |
return;
|
|
|
1566 |
|
|
|
1567 |
if ( *cur == '/' )
|
|
|
1568 |
{
|
|
|
1569 |
FT_PtrDist len;
|
|
|
1570 |
|
|
|
1571 |
|
|
|
1572 |
if ( cur + 1 >= limit )
|
|
|
1573 |
{
|
|
|
1574 |
error = T1_Err_Invalid_File_Format;
|
|
|
1575 |
goto Fail;
|
|
|
1576 |
}
|
|
|
1577 |
|
|
|
1578 |
cur++; /* skip `/' */
|
|
|
1579 |
len = parser->root.cursor - cur;
|
|
|
1580 |
|
|
|
1581 |
if ( !read_binary_data( parser, &size, &base ) )
|
|
|
1582 |
return;
|
|
|
1583 |
|
|
|
1584 |
/* for some non-standard fonts like `Optima' which provides */
|
|
|
1585 |
/* different outlines depending on the resolution it is */
|
|
|
1586 |
/* possible to get here twice */
|
|
|
1587 |
if ( loader->num_glyphs )
|
|
|
1588 |
continue;
|
|
|
1589 |
|
|
|
1590 |
error = T1_Add_Table( name_table, n, cur, len + 1 );
|
|
|
1591 |
if ( error )
|
|
|
1592 |
goto Fail;
|
|
|
1593 |
|
|
|
1594 |
/* add a trailing zero to the name table */
|
|
|
1595 |
name_table->elements[n][len] = '\0';
|
|
|
1596 |
|
|
|
1597 |
/* record index of /.notdef */
|
|
|
1598 |
if ( *cur == '.' &&
|
|
|
1599 |
ft_strcmp( ".notdef",
|
|
|
1600 |
(const char*)(name_table->elements[n]) ) == 0 )
|
|
|
1601 |
{
|
|
|
1602 |
notdef_index = n;
|
|
|
1603 |
notdef_found = 1;
|
|
|
1604 |
}
|
|
|
1605 |
|
|
|
1606 |
if ( face->type1.private_dict.lenIV >= 0 &&
|
|
|
1607 |
n < num_glyphs + TABLE_EXTEND )
|
|
|
1608 |
{
|
|
|
1609 |
FT_Byte* temp;
|
|
|
1610 |
|
|
|
1611 |
|
|
|
1612 |
if ( size <= face->type1.private_dict.lenIV )
|
|
|
1613 |
{
|
|
|
1614 |
error = T1_Err_Invalid_File_Format;
|
|
|
1615 |
goto Fail;
|
|
|
1616 |
}
|
|
|
1617 |
|
|
|
1618 |
/* t1_decrypt() shouldn't write to base -- make temporary copy */
|
|
|
1619 |
if ( FT_ALLOC( temp, size ) )
|
|
|
1620 |
goto Fail;
|
|
|
1621 |
FT_MEM_COPY( temp, base, size );
|
|
|
1622 |
psaux->t1_decrypt( temp, size, 4330 );
|
|
|
1623 |
size -= face->type1.private_dict.lenIV;
|
|
|
1624 |
error = T1_Add_Table( code_table, n,
|
|
|
1625 |
temp + face->type1.private_dict.lenIV, size );
|
|
|
1626 |
FT_FREE( temp );
|
|
|
1627 |
}
|
|
|
1628 |
else
|
|
|
1629 |
error = T1_Add_Table( code_table, n, base, size );
|
|
|
1630 |
if ( error )
|
|
|
1631 |
goto Fail;
|
|
|
1632 |
|
|
|
1633 |
n++;
|
|
|
1634 |
}
|
|
|
1635 |
}
|
|
|
1636 |
|
|
|
1637 |
loader->num_glyphs = n;
|
|
|
1638 |
|
|
|
1639 |
/* if /.notdef is found but does not occupy index 0, do our magic. */
|
|
|
1640 |
if ( notdef_found &&
|
|
|
1641 |
ft_strcmp( ".notdef", (const char*)name_table->elements[0] ) )
|
|
|
1642 |
{
|
|
|
1643 |
/* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */
|
|
|
1644 |
/* name and code entries to swap_table. Then place notdef_index */
|
|
|
1645 |
/* name and code entries into swap_table. Then swap name and code */
|
|
|
1646 |
/* entries at indices notdef_index and 0 using values stored in */
|
|
|
1647 |
/* swap_table. */
|
|
|
1648 |
|
|
|
1649 |
/* Index 0 name */
|
|
|
1650 |
error = T1_Add_Table( swap_table, 0,
|
|
|
1651 |
name_table->elements[0],
|
|
|
1652 |
name_table->lengths [0] );
|
|
|
1653 |
if ( error )
|
|
|
1654 |
goto Fail;
|
|
|
1655 |
|
|
|
1656 |
/* Index 0 code */
|
|
|
1657 |
error = T1_Add_Table( swap_table, 1,
|
|
|
1658 |
code_table->elements[0],
|
|
|
1659 |
code_table->lengths [0] );
|
|
|
1660 |
if ( error )
|
|
|
1661 |
goto Fail;
|
|
|
1662 |
|
|
|
1663 |
/* Index notdef_index name */
|
|
|
1664 |
error = T1_Add_Table( swap_table, 2,
|
|
|
1665 |
name_table->elements[notdef_index],
|
|
|
1666 |
name_table->lengths [notdef_index] );
|
|
|
1667 |
if ( error )
|
|
|
1668 |
goto Fail;
|
|
|
1669 |
|
|
|
1670 |
/* Index notdef_index code */
|
|
|
1671 |
error = T1_Add_Table( swap_table, 3,
|
|
|
1672 |
code_table->elements[notdef_index],
|
|
|
1673 |
code_table->lengths [notdef_index] );
|
|
|
1674 |
if ( error )
|
|
|
1675 |
goto Fail;
|
|
|
1676 |
|
|
|
1677 |
error = T1_Add_Table( name_table, notdef_index,
|
|
|
1678 |
swap_table->elements[0],
|
|
|
1679 |
swap_table->lengths [0] );
|
|
|
1680 |
if ( error )
|
|
|
1681 |
goto Fail;
|
|
|
1682 |
|
|
|
1683 |
error = T1_Add_Table( code_table, notdef_index,
|
|
|
1684 |
swap_table->elements[1],
|
|
|
1685 |
swap_table->lengths [1] );
|
|
|
1686 |
if ( error )
|
|
|
1687 |
goto Fail;
|
|
|
1688 |
|
|
|
1689 |
error = T1_Add_Table( name_table, 0,
|
|
|
1690 |
swap_table->elements[2],
|
|
|
1691 |
swap_table->lengths [2] );
|
|
|
1692 |
if ( error )
|
|
|
1693 |
goto Fail;
|
|
|
1694 |
|
|
|
1695 |
error = T1_Add_Table( code_table, 0,
|
|
|
1696 |
swap_table->elements[3],
|
|
|
1697 |
swap_table->lengths [3] );
|
|
|
1698 |
if ( error )
|
|
|
1699 |
goto Fail;
|
|
|
1700 |
|
|
|
1701 |
}
|
|
|
1702 |
else if ( !notdef_found )
|
|
|
1703 |
{
|
|
|
1704 |
/* notdef_index is already 0, or /.notdef is undefined in */
|
|
|
1705 |
/* charstrings dictionary. Worry about /.notdef undefined. */
|
|
|
1706 |
/* We take index 0 and add it to the end of the table(s) */
|
|
|
1707 |
/* and add our own /.notdef glyph to index 0. */
|
|
|
1708 |
|
|
|
1709 |
/* 0 333 hsbw endchar */
|
|
|
1710 |
FT_Byte notdef_glyph[] = { 0x8B, 0xF7, 0xE1, 0x0D, 0x0E };
|
|
|
1711 |
char* notdef_name = (char *)".notdef";
|
|
|
1712 |
|
|
|
1713 |
|
|
|
1714 |
error = T1_Add_Table( swap_table, 0,
|
|
|
1715 |
name_table->elements[0],
|
|
|
1716 |
name_table->lengths [0] );
|
|
|
1717 |
if ( error )
|
|
|
1718 |
goto Fail;
|
|
|
1719 |
|
|
|
1720 |
error = T1_Add_Table( swap_table, 1,
|
|
|
1721 |
code_table->elements[0],
|
|
|
1722 |
code_table->lengths [0] );
|
|
|
1723 |
if ( error )
|
|
|
1724 |
goto Fail;
|
|
|
1725 |
|
|
|
1726 |
error = T1_Add_Table( name_table, 0, notdef_name, 8 );
|
|
|
1727 |
if ( error )
|
|
|
1728 |
goto Fail;
|
|
|
1729 |
|
|
|
1730 |
error = T1_Add_Table( code_table, 0, notdef_glyph, 5 );
|
|
|
1731 |
|
|
|
1732 |
if ( error )
|
|
|
1733 |
goto Fail;
|
|
|
1734 |
|
|
|
1735 |
error = T1_Add_Table( name_table, n,
|
|
|
1736 |
swap_table->elements[0],
|
|
|
1737 |
swap_table->lengths [0] );
|
|
|
1738 |
if ( error )
|
|
|
1739 |
goto Fail;
|
|
|
1740 |
|
|
|
1741 |
error = T1_Add_Table( code_table, n,
|
|
|
1742 |
swap_table->elements[1],
|
|
|
1743 |
swap_table->lengths [1] );
|
|
|
1744 |
if ( error )
|
|
|
1745 |
goto Fail;
|
|
|
1746 |
|
|
|
1747 |
/* we added a glyph. */
|
|
|
1748 |
loader->num_glyphs += 1;
|
|
|
1749 |
}
|
|
|
1750 |
|
|
|
1751 |
return;
|
|
|
1752 |
|
|
|
1753 |
Fail:
|
|
|
1754 |
parser->root.error = error;
|
|
|
1755 |
}
|
|
|
1756 |
|
|
|
1757 |
|
|
|
1758 |
/*************************************************************************/
|
|
|
1759 |
/* */
|
|
|
1760 |
/* Define the token field static variables. This is a set of */
|
|
|
1761 |
/* T1_FieldRec variables. */
|
|
|
1762 |
/* */
|
|
|
1763 |
/*************************************************************************/
|
|
|
1764 |
|
|
|
1765 |
|
|
|
1766 |
static
|
|
|
1767 |
const T1_FieldRec t1_keywords[] =
|
|
|
1768 |
{
|
|
|
1769 |
|
|
|
1770 |
#include "t1tokens.h"
|
|
|
1771 |
|
|
|
1772 |
/* now add the special functions... */
|
|
|
1773 |
T1_FIELD_CALLBACK( "FontMatrix", parse_font_matrix,
|
|
|
1774 |
T1_FIELD_DICT_FONTDICT )
|
|
|
1775 |
T1_FIELD_CALLBACK( "Encoding", parse_encoding,
|
|
|
1776 |
T1_FIELD_DICT_FONTDICT )
|
|
|
1777 |
T1_FIELD_CALLBACK( "Subrs", parse_subrs,
|
|
|
1778 |
T1_FIELD_DICT_PRIVATE )
|
|
|
1779 |
T1_FIELD_CALLBACK( "CharStrings", parse_charstrings,
|
|
|
1780 |
T1_FIELD_DICT_PRIVATE )
|
|
|
1781 |
T1_FIELD_CALLBACK( "Private", parse_private,
|
|
|
1782 |
T1_FIELD_DICT_FONTDICT )
|
|
|
1783 |
|
|
|
1784 |
#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
|
|
|
1785 |
T1_FIELD_CALLBACK( "BlendDesignPositions", parse_blend_design_positions,
|
|
|
1786 |
T1_FIELD_DICT_FONTDICT )
|
|
|
1787 |
T1_FIELD_CALLBACK( "BlendDesignMap", parse_blend_design_map,
|
|
|
1788 |
T1_FIELD_DICT_FONTDICT )
|
|
|
1789 |
T1_FIELD_CALLBACK( "BlendAxisTypes", parse_blend_axis_types,
|
|
|
1790 |
T1_FIELD_DICT_FONTDICT )
|
|
|
1791 |
T1_FIELD_CALLBACK( "WeightVector", parse_weight_vector,
|
|
|
1792 |
T1_FIELD_DICT_FONTDICT )
|
|
|
1793 |
T1_FIELD_CALLBACK( "BuildCharArray", parse_buildchar,
|
|
|
1794 |
T1_FIELD_DICT_PRIVATE )
|
|
|
1795 |
#endif
|
|
|
1796 |
|
|
|
1797 |
{ 0, T1_FIELD_LOCATION_CID_INFO, T1_FIELD_TYPE_NONE, 0, 0, 0, 0, 0, 0 }
|
|
|
1798 |
};
|
|
|
1799 |
|
|
|
1800 |
|
|
|
1801 |
#define T1_FIELD_COUNT \
|
|
|
1802 |
( sizeof ( t1_keywords ) / sizeof ( t1_keywords[0] ) )
|
|
|
1803 |
|
|
|
1804 |
|
|
|
1805 |
static FT_Error
|
|
|
1806 |
parse_dict( T1_Face face,
|
|
|
1807 |
T1_Loader loader,
|
|
|
1808 |
FT_Byte* base,
|
|
|
1809 |
FT_Long size )
|
|
|
1810 |
{
|
|
|
1811 |
T1_Parser parser = &loader->parser;
|
|
|
1812 |
FT_Byte *limit, *start_binary = NULL;
|
|
|
1813 |
FT_Bool have_integer = 0;
|
|
|
1814 |
|
|
|
1815 |
|
|
|
1816 |
parser->root.cursor = base;
|
|
|
1817 |
parser->root.limit = base + size;
|
|
|
1818 |
parser->root.error = T1_Err_Ok;
|
|
|
1819 |
|
|
|
1820 |
limit = parser->root.limit;
|
|
|
1821 |
|
|
|
1822 |
T1_Skip_Spaces( parser );
|
|
|
1823 |
|
|
|
1824 |
while ( parser->root.cursor < limit )
|
|
|
1825 |
{
|
|
|
1826 |
FT_Byte* cur;
|
|
|
1827 |
|
|
|
1828 |
|
|
|
1829 |
cur = parser->root.cursor;
|
|
|
1830 |
|
|
|
1831 |
/* look for `eexec' */
|
|
|
1832 |
if ( IS_PS_TOKEN( cur, limit, "eexec" ) )
|
|
|
1833 |
break;
|
|
|
1834 |
|
|
|
1835 |
/* look for `closefile' which ends the eexec section */
|
|
|
1836 |
else if ( IS_PS_TOKEN( cur, limit, "closefile" ) )
|
|
|
1837 |
break;
|
|
|
1838 |
|
|
|
1839 |
/* in a synthetic font the base font starts after a */
|
|
|
1840 |
/* `FontDictionary' token that is placed after a Private dict */
|
|
|
1841 |
else if ( IS_PS_TOKEN( cur, limit, "FontDirectory" ) )
|
|
|
1842 |
{
|
|
|
1843 |
if ( loader->keywords_encountered & T1_PRIVATE )
|
|
|
1844 |
loader->keywords_encountered |=
|
|
|
1845 |
T1_FONTDIR_AFTER_PRIVATE;
|
|
|
1846 |
parser->root.cursor += 13;
|
|
|
1847 |
}
|
|
|
1848 |
|
|
|
1849 |
/* check whether we have an integer */
|
|
|
1850 |
else if ( ft_isdigit( *cur ) )
|
|
|
1851 |
{
|
|
|
1852 |
start_binary = cur;
|
|
|
1853 |
T1_Skip_PS_Token( parser );
|
|
|
1854 |
if ( parser->root.error )
|
|
|
1855 |
goto Exit;
|
|
|
1856 |
have_integer = 1;
|
|
|
1857 |
}
|
|
|
1858 |
|
|
|
1859 |
/* in valid Type 1 fonts we don't see `RD' or `-|' directly */
|
|
|
1860 |
/* since those tokens are handled by parse_subrs and */
|
|
|
1861 |
/* parse_charstrings */
|
|
|
1862 |
else if ( *cur == 'R' && cur + 6 < limit && *(cur + 1) == 'D' &&
|
|
|
1863 |
have_integer )
|
|
|
1864 |
{
|
|
|
1865 |
FT_Long s;
|
|
|
1866 |
FT_Byte* b;
|
|
|
1867 |
|
|
|
1868 |
|
|
|
1869 |
parser->root.cursor = start_binary;
|
|
|
1870 |
if ( !read_binary_data( parser, &s, &b ) )
|
|
|
1871 |
return T1_Err_Invalid_File_Format;
|
|
|
1872 |
have_integer = 0;
|
|
|
1873 |
}
|
|
|
1874 |
|
|
|
1875 |
else if ( *cur == '-' && cur + 6 < limit && *(cur + 1) == '|' &&
|
|
|
1876 |
have_integer )
|
|
|
1877 |
{
|
|
|
1878 |
FT_Long s;
|
|
|
1879 |
FT_Byte* b;
|
|
|
1880 |
|
|
|
1881 |
|
|
|
1882 |
parser->root.cursor = start_binary;
|
|
|
1883 |
if ( !read_binary_data( parser, &s, &b ) )
|
|
|
1884 |
return T1_Err_Invalid_File_Format;
|
|
|
1885 |
have_integer = 0;
|
|
|
1886 |
}
|
|
|
1887 |
|
|
|
1888 |
/* look for immediates */
|
|
|
1889 |
else if ( *cur == '/' && cur + 2 < limit )
|
|
|
1890 |
{
|
|
|
1891 |
FT_PtrDist len;
|
|
|
1892 |
|
|
|
1893 |
|
|
|
1894 |
cur++;
|
|
|
1895 |
|
|
|
1896 |
parser->root.cursor = cur;
|
|
|
1897 |
T1_Skip_PS_Token( parser );
|
|
|
1898 |
if ( parser->root.error )
|
|
|
1899 |
goto Exit;
|
|
|
1900 |
|
|
|
1901 |
len = parser->root.cursor - cur;
|
|
|
1902 |
|
|
|
1903 |
if ( len > 0 && len < 22 && parser->root.cursor < limit )
|
|
|
1904 |
{
|
|
|
1905 |
/* now compare the immediate name to the keyword table */
|
|
|
1906 |
T1_Field keyword = (T1_Field)t1_keywords;
|
|
|
1907 |
|
|
|
1908 |
|
|
|
1909 |
for (;;)
|
|
|
1910 |
{
|
|
|
1911 |
FT_Byte* name;
|
|
|
1912 |
|
|
|
1913 |
|
|
|
1914 |
name = (FT_Byte*)keyword->ident;
|
|
|
1915 |
if ( !name )
|
|
|
1916 |
break;
|
|
|
1917 |
|
|
|
1918 |
if ( cur[0] == name[0] &&
|
|
|
1919 |
len == (FT_PtrDist)ft_strlen( (const char *)name ) &&
|
|
|
1920 |
ft_memcmp( cur, name, len ) == 0 )
|
|
|
1921 |
{
|
|
|
1922 |
/* We found it -- run the parsing callback! */
|
|
|
1923 |
/* We record every instance of every field */
|
|
|
1924 |
/* (until we reach the base font of a */
|
|
|
1925 |
/* synthetic font) to deal adequately with */
|
|
|
1926 |
/* multiple master fonts; this is also */
|
|
|
1927 |
/* necessary because later PostScript */
|
|
|
1928 |
/* definitions override earlier ones. */
|
|
|
1929 |
|
|
|
1930 |
/* Once we encounter `FontDirectory' after */
|
|
|
1931 |
/* `/Private', we know that this is a synthetic */
|
|
|
1932 |
/* font; except for `/CharStrings' we are not */
|
|
|
1933 |
/* interested in anything that follows this */
|
|
|
1934 |
/* `FontDirectory'. */
|
|
|
1935 |
|
|
|
1936 |
/* MM fonts have more than one /Private token at */
|
|
|
1937 |
/* the top level; let's hope that all the junk */
|
|
|
1938 |
/* that follows the first /Private token is not */
|
|
|
1939 |
/* interesting to us. */
|
|
|
1940 |
|
|
|
1941 |
/* According to Adobe Tech Note #5175 (CID-Keyed */
|
|
|
1942 |
/* Font Installation for ATM Software) a `begin' */
|
|
|
1943 |
/* must be followed by exactly one `end', and */
|
|
|
1944 |
/* `begin' -- `end' pairs must be accurately */
|
|
|
1945 |
/* paired. We could use this to distinguish */
|
|
|
1946 |
/* between the global Private and the Private */
|
|
|
1947 |
/* dict that is a member of the Blend dict. */
|
|
|
1948 |
|
|
|
1949 |
const FT_UInt dict =
|
|
|
1950 |
( loader->keywords_encountered & T1_PRIVATE )
|
|
|
1951 |
? T1_FIELD_DICT_PRIVATE
|
|
|
1952 |
: T1_FIELD_DICT_FONTDICT;
|
|
|
1953 |
|
|
|
1954 |
if ( !( dict & keyword->dict ) )
|
|
|
1955 |
{
|
|
|
1956 |
FT_TRACE1(( "parse_dict: found %s but ignoring it "
|
|
|
1957 |
"since it is in the wrong dictionary\n",
|
|
|
1958 |
keyword->ident ));
|
|
|
1959 |
break;
|
|
|
1960 |
}
|
|
|
1961 |
|
|
|
1962 |
if ( !( loader->keywords_encountered &
|
|
|
1963 |
T1_FONTDIR_AFTER_PRIVATE ) ||
|
|
|
1964 |
ft_strcmp( (const char*)name, "CharStrings" ) == 0 )
|
|
|
1965 |
{
|
|
|
1966 |
parser->root.error = t1_load_keyword( face,
|
|
|
1967 |
loader,
|
|
|
1968 |
keyword );
|
|
|
1969 |
if ( parser->root.error != T1_Err_Ok )
|
|
|
1970 |
{
|
|
|
1971 |
if ( FT_ERROR_BASE( parser->root.error ) == FT_Err_Ignore )
|
|
|
1972 |
parser->root.error = T1_Err_Ok;
|
|
|
1973 |
else
|
|
|
1974 |
return parser->root.error;
|
|
|
1975 |
}
|
|
|
1976 |
}
|
|
|
1977 |
break;
|
|
|
1978 |
}
|
|
|
1979 |
|
|
|
1980 |
keyword++;
|
|
|
1981 |
}
|
|
|
1982 |
}
|
|
|
1983 |
|
|
|
1984 |
have_integer = 0;
|
|
|
1985 |
}
|
|
|
1986 |
else
|
|
|
1987 |
{
|
|
|
1988 |
T1_Skip_PS_Token( parser );
|
|
|
1989 |
if ( parser->root.error )
|
|
|
1990 |
goto Exit;
|
|
|
1991 |
have_integer = 0;
|
|
|
1992 |
}
|
|
|
1993 |
|
|
|
1994 |
T1_Skip_Spaces( parser );
|
|
|
1995 |
}
|
|
|
1996 |
|
|
|
1997 |
Exit:
|
|
|
1998 |
return parser->root.error;
|
|
|
1999 |
}
|
|
|
2000 |
|
|
|
2001 |
|
|
|
2002 |
static void
|
|
|
2003 |
t1_init_loader( T1_Loader loader,
|
|
|
2004 |
T1_Face face )
|
|
|
2005 |
{
|
|
|
2006 |
FT_UNUSED( face );
|
|
|
2007 |
|
|
|
2008 |
FT_MEM_ZERO( loader, sizeof ( *loader ) );
|
|
|
2009 |
loader->num_glyphs = 0;
|
|
|
2010 |
loader->num_chars = 0;
|
|
|
2011 |
|
|
|
2012 |
/* initialize the tables -- simply set their `init' field to 0 */
|
|
|
2013 |
loader->encoding_table.init = 0;
|
|
|
2014 |
loader->charstrings.init = 0;
|
|
|
2015 |
loader->glyph_names.init = 0;
|
|
|
2016 |
loader->subrs.init = 0;
|
|
|
2017 |
loader->swap_table.init = 0;
|
|
|
2018 |
loader->fontdata = 0;
|
|
|
2019 |
loader->keywords_encountered = 0;
|
|
|
2020 |
}
|
|
|
2021 |
|
|
|
2022 |
|
|
|
2023 |
static void
|
|
|
2024 |
t1_done_loader( T1_Loader loader )
|
|
|
2025 |
{
|
|
|
2026 |
T1_Parser parser = &loader->parser;
|
|
|
2027 |
|
|
|
2028 |
|
|
|
2029 |
/* finalize tables */
|
|
|
2030 |
T1_Release_Table( &loader->encoding_table );
|
|
|
2031 |
T1_Release_Table( &loader->charstrings );
|
|
|
2032 |
T1_Release_Table( &loader->glyph_names );
|
|
|
2033 |
T1_Release_Table( &loader->swap_table );
|
|
|
2034 |
T1_Release_Table( &loader->subrs );
|
|
|
2035 |
|
|
|
2036 |
/* finalize parser */
|
|
|
2037 |
T1_Finalize_Parser( parser );
|
|
|
2038 |
}
|
|
|
2039 |
|
|
|
2040 |
|
|
|
2041 |
FT_LOCAL_DEF( FT_Error )
|
|
|
2042 |
T1_Open_Face( T1_Face face )
|
|
|
2043 |
{
|
|
|
2044 |
T1_LoaderRec loader;
|
|
|
2045 |
T1_Parser parser;
|
|
|
2046 |
T1_Font type1 = &face->type1;
|
|
|
2047 |
PS_Private priv = &type1->private_dict;
|
|
|
2048 |
FT_Error error;
|
|
|
2049 |
|
|
|
2050 |
PSAux_Service psaux = (PSAux_Service)face->psaux;
|
|
|
2051 |
|
|
|
2052 |
|
|
|
2053 |
t1_init_loader( &loader, face );
|
|
|
2054 |
|
|
|
2055 |
/* default values */
|
|
|
2056 |
face->ndv_idx = -1;
|
|
|
2057 |
face->cdv_idx = -1;
|
|
|
2058 |
face->len_buildchar = 0;
|
|
|
2059 |
|
|
|
2060 |
priv->blue_shift = 7;
|
|
|
2061 |
priv->blue_fuzz = 1;
|
|
|
2062 |
priv->lenIV = 4;
|
|
|
2063 |
priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L );
|
|
|
2064 |
priv->blue_scale = (FT_Fixed)( 0.039625 * 0x10000L * 1000 );
|
|
|
2065 |
|
|
|
2066 |
parser = &loader.parser;
|
|
|
2067 |
error = T1_New_Parser( parser,
|
|
|
2068 |
face->root.stream,
|
|
|
2069 |
face->root.memory,
|
|
|
2070 |
psaux );
|
|
|
2071 |
if ( error )
|
|
|
2072 |
goto Exit;
|
|
|
2073 |
|
|
|
2074 |
error = parse_dict( face, &loader,
|
|
|
2075 |
parser->base_dict, parser->base_len );
|
|
|
2076 |
if ( error )
|
|
|
2077 |
goto Exit;
|
|
|
2078 |
|
|
|
2079 |
error = T1_Get_Private_Dict( parser, psaux );
|
|
|
2080 |
if ( error )
|
|
|
2081 |
goto Exit;
|
|
|
2082 |
|
|
|
2083 |
error = parse_dict( face, &loader,
|
|
|
2084 |
parser->private_dict, parser->private_len );
|
|
|
2085 |
if ( error )
|
|
|
2086 |
goto Exit;
|
|
|
2087 |
|
|
|
2088 |
/* ensure even-ness of `num_blue_values' */
|
|
|
2089 |
priv->num_blue_values &= ~1;
|
|
|
2090 |
|
|
|
2091 |
#ifndef T1_CONFIG_OPTION_NO_MM_SUPPORT
|
|
|
2092 |
|
|
|
2093 |
if ( face->blend &&
|
|
|
2094 |
face->blend->num_default_design_vector != 0 &&
|
|
|
2095 |
face->blend->num_default_design_vector != face->blend->num_axis )
|
|
|
2096 |
{
|
|
|
2097 |
/* we don't use it currently so just warn, reset, and ignore */
|
|
|
2098 |
FT_ERROR(( "T1_Open_Face(): /DesignVector contains %u entries "
|
|
|
2099 |
"while there are %u axes.\n",
|
|
|
2100 |
face->blend->num_default_design_vector,
|
|
|
2101 |
face->blend->num_axis ));
|
|
|
2102 |
|
|
|
2103 |
face->blend->num_default_design_vector = 0;
|
|
|
2104 |
}
|
|
|
2105 |
|
|
|
2106 |
/* the following can happen for MM instances; we then treat the */
|
|
|
2107 |
/* font as a normal PS font */
|
|
|
2108 |
if ( face->blend &&
|
|
|
2109 |
( !face->blend->num_designs || !face->blend->num_axis ) )
|
|
|
2110 |
T1_Done_Blend( face );
|
|
|
2111 |
|
|
|
2112 |
/* another safety check */
|
|
|
2113 |
if ( face->blend )
|
|
|
2114 |
{
|
|
|
2115 |
FT_UInt i;
|
|
|
2116 |
|
|
|
2117 |
|
|
|
2118 |
for ( i = 0; i < face->blend->num_axis; i++ )
|
|
|
2119 |
if ( !face->blend->design_map[i].num_points )
|
|
|
2120 |
{
|
|
|
2121 |
T1_Done_Blend( face );
|
|
|
2122 |
break;
|
|
|
2123 |
}
|
|
|
2124 |
}
|
|
|
2125 |
|
|
|
2126 |
if ( face->blend )
|
|
|
2127 |
{
|
|
|
2128 |
if ( face->len_buildchar > 0 )
|
|
|
2129 |
{
|
|
|
2130 |
FT_Memory memory = face->root.memory;
|
|
|
2131 |
|
|
|
2132 |
|
|
|
2133 |
if ( FT_NEW_ARRAY( face->buildchar, face->len_buildchar ) )
|
|
|
2134 |
{
|
|
|
2135 |
FT_ERROR(( "T1_Open_Face: cannot allocate BuildCharArray\n" ));
|
|
|
2136 |
face->len_buildchar = 0;
|
|
|
2137 |
goto Exit;
|
|
|
2138 |
}
|
|
|
2139 |
}
|
|
|
2140 |
}
|
|
|
2141 |
|
|
|
2142 |
#endif /* T1_CONFIG_OPTION_NO_MM_SUPPORT */
|
|
|
2143 |
|
|
|
2144 |
/* now, propagate the subrs, charstrings, and glyphnames tables */
|
|
|
2145 |
/* to the Type1 data */
|
|
|
2146 |
type1->num_glyphs = loader.num_glyphs;
|
|
|
2147 |
|
|
|
2148 |
if ( loader.subrs.init )
|
|
|
2149 |
{
|
|
|
2150 |
loader.subrs.init = 0;
|
|
|
2151 |
type1->num_subrs = loader.num_subrs;
|
|
|
2152 |
type1->subrs_block = loader.subrs.block;
|
|
|
2153 |
type1->subrs = loader.subrs.elements;
|
|
|
2154 |
type1->subrs_len = loader.subrs.lengths;
|
|
|
2155 |
}
|
|
|
2156 |
|
|
|
2157 |
#ifdef FT_CONFIG_OPTION_INCREMENTAL
|
|
|
2158 |
if ( !face->root.internal->incremental_interface )
|
|
|
2159 |
#endif
|
|
|
2160 |
if ( !loader.charstrings.init )
|
|
|
2161 |
{
|
|
|
2162 |
FT_ERROR(( "T1_Open_Face: no `/CharStrings' array in face\n" ));
|
|
|
2163 |
error = T1_Err_Invalid_File_Format;
|
|
|
2164 |
}
|
|
|
2165 |
|
|
|
2166 |
loader.charstrings.init = 0;
|
|
|
2167 |
type1->charstrings_block = loader.charstrings.block;
|
|
|
2168 |
type1->charstrings = loader.charstrings.elements;
|
|
|
2169 |
type1->charstrings_len = loader.charstrings.lengths;
|
|
|
2170 |
|
|
|
2171 |
/* we copy the glyph names `block' and `elements' fields; */
|
|
|
2172 |
/* the `lengths' field must be released later */
|
|
|
2173 |
type1->glyph_names_block = loader.glyph_names.block;
|
|
|
2174 |
type1->glyph_names = (FT_String**)loader.glyph_names.elements;
|
|
|
2175 |
loader.glyph_names.block = 0;
|
|
|
2176 |
loader.glyph_names.elements = 0;
|
|
|
2177 |
|
|
|
2178 |
/* we must now build type1.encoding when we have a custom array */
|
|
|
2179 |
if ( type1->encoding_type == T1_ENCODING_TYPE_ARRAY )
|
|
|
2180 |
{
|
|
|
2181 |
FT_Int charcode, idx, min_char, max_char;
|
|
|
2182 |
FT_Byte* char_name;
|
|
|
2183 |
FT_Byte* glyph_name;
|
|
|
2184 |
|
|
|
2185 |
|
|
|
2186 |
/* OK, we do the following: for each element in the encoding */
|
|
|
2187 |
/* table, look up the index of the glyph having the same name */
|
|
|
2188 |
/* the index is then stored in type1.encoding.char_index, and */
|
|
|
2189 |
/* the name to type1.encoding.char_name */
|
|
|
2190 |
|
|
|
2191 |
min_char = 0;
|
|
|
2192 |
max_char = 0;
|
|
|
2193 |
|
|
|
2194 |
charcode = 0;
|
|
|
2195 |
for ( ; charcode < loader.encoding_table.max_elems; charcode++ )
|
|
|
2196 |
{
|
|
|
2197 |
type1->encoding.char_index[charcode] = 0;
|
|
|
2198 |
type1->encoding.char_name [charcode] = (char *)".notdef";
|
|
|
2199 |
|
|
|
2200 |
char_name = loader.encoding_table.elements[charcode];
|
|
|
2201 |
if ( char_name )
|
|
|
2202 |
for ( idx = 0; idx < type1->num_glyphs; idx++ )
|
|
|
2203 |
{
|
|
|
2204 |
glyph_name = (FT_Byte*)type1->glyph_names[idx];
|
|
|
2205 |
if ( ft_strcmp( (const char*)char_name,
|
|
|
2206 |
(const char*)glyph_name ) == 0 )
|
|
|
2207 |
{
|
|
|
2208 |
type1->encoding.char_index[charcode] = (FT_UShort)idx;
|
|
|
2209 |
type1->encoding.char_name [charcode] = (char*)glyph_name;
|
|
|
2210 |
|
|
|
2211 |
/* Change min/max encoded char only if glyph name is */
|
|
|
2212 |
/* not /.notdef */
|
|
|
2213 |
if ( ft_strcmp( (const char*)".notdef",
|
|
|
2214 |
(const char*)glyph_name ) != 0 )
|
|
|
2215 |
{
|
|
|
2216 |
if ( charcode < min_char )
|
|
|
2217 |
min_char = charcode;
|
|
|
2218 |
if ( charcode >= max_char )
|
|
|
2219 |
max_char = charcode + 1;
|
|
|
2220 |
}
|
|
|
2221 |
break;
|
|
|
2222 |
}
|
|
|
2223 |
}
|
|
|
2224 |
}
|
|
|
2225 |
|
|
|
2226 |
type1->encoding.code_first = min_char;
|
|
|
2227 |
type1->encoding.code_last = max_char;
|
|
|
2228 |
type1->encoding.num_chars = loader.num_chars;
|
|
|
2229 |
}
|
|
|
2230 |
|
|
|
2231 |
Exit:
|
|
|
2232 |
t1_done_loader( &loader );
|
|
|
2233 |
return error;
|
|
|
2234 |
}
|
|
|
2235 |
|
|
|
2236 |
|
|
|
2237 |
/* END */
|