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5172
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/* pcfread.c
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FreeType font driver for pcf fonts
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Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
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2010 by
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Francesco Zappa Nardelli
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <ft2build.h>
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#include FT_INTERNAL_DEBUG_H
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#include FT_INTERNAL_STREAM_H
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#include FT_INTERNAL_OBJECTS_H
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#include "pcf.h"
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#include "pcfread.h"
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#include "pcferror.h"
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/*************************************************************************/
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/* */
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/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
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/* 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_pcfread
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49 |
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50 |
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51 |
#ifdef FT_DEBUG_LEVEL_TRACE
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52 |
static const char* const tableNames[] =
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{
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"prop", "accl", "mtrcs", "bmps", "imtrcs",
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"enc", "swidth", "names", "accel"
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};
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#endif
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static
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const FT_Frame_Field pcf_toc_header[] =
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{
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#undef FT_STRUCTURE
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#define FT_STRUCTURE PCF_TocRec
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FT_FRAME_START( 8 ),
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FT_FRAME_ULONG_LE( version ),
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FT_FRAME_ULONG_LE( count ),
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FT_FRAME_END
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};
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static
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const FT_Frame_Field pcf_table_header[] =
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{
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#undef FT_STRUCTURE
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#define FT_STRUCTURE PCF_TableRec
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78 |
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FT_FRAME_START( 16 ),
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FT_FRAME_ULONG_LE( type ),
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FT_FRAME_ULONG_LE( format ),
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FT_FRAME_ULONG_LE( size ),
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FT_FRAME_ULONG_LE( offset ),
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FT_FRAME_END
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};
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87 |
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static FT_Error
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pcf_read_TOC( FT_Stream stream,
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PCF_Face face )
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{
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FT_Error error;
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PCF_Toc toc = &face->toc;
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PCF_Table tables;
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FT_Memory memory = FT_FACE(face)->memory;
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FT_UInt n;
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if ( FT_STREAM_SEEK ( 0 ) ||
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FT_STREAM_READ_FIELDS ( pcf_toc_header, toc ) )
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return PCF_Err_Cannot_Open_Resource;
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103 |
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if ( toc->version != PCF_FILE_VERSION ||
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toc->count > FT_ARRAY_MAX( face->toc.tables ) ||
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106 |
toc->count == 0 )
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return PCF_Err_Invalid_File_Format;
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108 |
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if ( FT_NEW_ARRAY( face->toc.tables, toc->count ) )
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return PCF_Err_Out_Of_Memory;
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111 |
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tables = face->toc.tables;
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for ( n = 0; n < toc->count; n++ )
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{
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if ( FT_STREAM_READ_FIELDS( pcf_table_header, tables ) )
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goto Exit;
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tables++;
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}
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/* Sort tables and check for overlaps. Because they are almost */
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/* always ordered already, an in-place bubble sort with simultaneous */
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/* boundary checking seems appropriate. */
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tables = face->toc.tables;
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for ( n = 0; n < toc->count - 1; n++ )
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{
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FT_UInt i, have_change;
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128 |
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129 |
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have_change = 0;
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for ( i = 0; i < toc->count - 1 - n; i++ )
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{
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PCF_TableRec tmp;
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135 |
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136 |
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if ( tables[i].offset > tables[i + 1].offset )
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{
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tmp = tables[i];
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tables[i] = tables[i + 1];
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tables[i + 1] = tmp;
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142 |
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143 |
have_change = 1;
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}
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if ( ( tables[i].size > tables[i + 1].offset ) ||
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147 |
( tables[i].offset > tables[i + 1].offset - tables[i].size ) )
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return PCF_Err_Invalid_Offset;
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}
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150 |
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151 |
if ( !have_change )
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152 |
break;
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153 |
}
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154 |
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155 |
#ifdef FT_DEBUG_LEVEL_TRACE
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156 |
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157 |
{
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158 |
FT_UInt i, j;
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159 |
const char* name = "?";
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160 |
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161 |
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162 |
FT_TRACE4(( "pcf_read_TOC:\n" ));
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163 |
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164 |
FT_TRACE4(( " number of tables: %ld\n", face->toc.count ));
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165 |
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tables = face->toc.tables;
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for ( i = 0; i < toc->count; i++ )
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{
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for ( j = 0; j < sizeof ( tableNames ) / sizeof ( tableNames[0] );
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j++ )
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171 |
if ( tables[i].type == (FT_UInt)( 1 << j ) )
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name = tableNames[j];
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173 |
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FT_TRACE4(( " %d: type=%s, format=0x%X, "
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"size=%ld (0x%lX), offset=%ld (0x%lX)\n",
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i, name,
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tables[i].format,
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tables[i].size, tables[i].size,
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179 |
tables[i].offset, tables[i].offset ));
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}
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}
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182 |
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#endif
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184 |
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185 |
return PCF_Err_Ok;
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186 |
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187 |
Exit:
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188 |
FT_FREE( face->toc.tables );
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189 |
return error;
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190 |
}
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191 |
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192 |
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193 |
#define PCF_METRIC_SIZE 12
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194 |
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static
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const FT_Frame_Field pcf_metric_header[] =
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197 |
{
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198 |
#undef FT_STRUCTURE
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199 |
#define FT_STRUCTURE PCF_MetricRec
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200 |
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201 |
FT_FRAME_START( PCF_METRIC_SIZE ),
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202 |
FT_FRAME_SHORT_LE( leftSideBearing ),
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203 |
FT_FRAME_SHORT_LE( rightSideBearing ),
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204 |
FT_FRAME_SHORT_LE( characterWidth ),
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205 |
FT_FRAME_SHORT_LE( ascent ),
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206 |
FT_FRAME_SHORT_LE( descent ),
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207 |
FT_FRAME_SHORT_LE( attributes ),
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208 |
FT_FRAME_END
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209 |
};
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210 |
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211 |
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212 |
static
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213 |
const FT_Frame_Field pcf_metric_msb_header[] =
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214 |
{
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215 |
#undef FT_STRUCTURE
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216 |
#define FT_STRUCTURE PCF_MetricRec
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217 |
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218 |
FT_FRAME_START( PCF_METRIC_SIZE ),
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219 |
FT_FRAME_SHORT( leftSideBearing ),
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220 |
FT_FRAME_SHORT( rightSideBearing ),
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221 |
FT_FRAME_SHORT( characterWidth ),
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222 |
FT_FRAME_SHORT( ascent ),
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223 |
FT_FRAME_SHORT( descent ),
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224 |
FT_FRAME_SHORT( attributes ),
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225 |
FT_FRAME_END
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226 |
};
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227 |
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228 |
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229 |
#define PCF_COMPRESSED_METRIC_SIZE 5
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230 |
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231 |
static
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232 |
const FT_Frame_Field pcf_compressed_metric_header[] =
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233 |
{
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234 |
#undef FT_STRUCTURE
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235 |
#define FT_STRUCTURE PCF_Compressed_MetricRec
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236 |
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237 |
FT_FRAME_START( PCF_COMPRESSED_METRIC_SIZE ),
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238 |
FT_FRAME_BYTE( leftSideBearing ),
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239 |
FT_FRAME_BYTE( rightSideBearing ),
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240 |
FT_FRAME_BYTE( characterWidth ),
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241 |
FT_FRAME_BYTE( ascent ),
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242 |
FT_FRAME_BYTE( descent ),
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243 |
FT_FRAME_END
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244 |
};
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245 |
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246 |
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247 |
static FT_Error
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248 |
pcf_get_metric( FT_Stream stream,
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249 |
FT_ULong format,
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250 |
PCF_Metric metric )
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251 |
{
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252 |
FT_Error error = PCF_Err_Ok;
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253 |
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254 |
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255 |
if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
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256 |
{
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257 |
const FT_Frame_Field* fields;
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258 |
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259 |
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260 |
/* parsing normal metrics */
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261 |
fields = PCF_BYTE_ORDER( format ) == MSBFirst
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262 |
? pcf_metric_msb_header
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263 |
: pcf_metric_header;
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264 |
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265 |
/* the following sets `error' but doesn't return in case of failure */
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266 |
(void)FT_STREAM_READ_FIELDS( fields, metric );
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267 |
}
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268 |
else
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269 |
{
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270 |
PCF_Compressed_MetricRec compr;
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271 |
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272 |
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273 |
/* parsing compressed metrics */
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274 |
if ( FT_STREAM_READ_FIELDS( pcf_compressed_metric_header, &compr ) )
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275 |
goto Exit;
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276 |
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277 |
metric->leftSideBearing = (FT_Short)( compr.leftSideBearing - 0x80 );
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278 |
metric->rightSideBearing = (FT_Short)( compr.rightSideBearing - 0x80 );
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279 |
metric->characterWidth = (FT_Short)( compr.characterWidth - 0x80 );
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280 |
metric->ascent = (FT_Short)( compr.ascent - 0x80 );
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281 |
metric->descent = (FT_Short)( compr.descent - 0x80 );
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282 |
metric->attributes = 0;
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283 |
}
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284 |
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285 |
Exit:
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286 |
return error;
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287 |
}
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288 |
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289 |
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290 |
static FT_Error
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291 |
pcf_seek_to_table_type( FT_Stream stream,
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292 |
PCF_Table tables,
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293 |
FT_ULong ntables, /* same as PCF_Toc->count */
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294 |
FT_ULong type,
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295 |
FT_ULong *aformat,
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296 |
FT_ULong *asize )
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297 |
{
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298 |
FT_Error error = PCF_Err_Invalid_File_Format;
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299 |
FT_ULong i;
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300 |
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301 |
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302 |
for ( i = 0; i < ntables; i++ )
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303 |
if ( tables[i].type == type )
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304 |
{
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305 |
if ( stream->pos > tables[i].offset )
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306 |
{
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307 |
error = PCF_Err_Invalid_Stream_Skip;
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308 |
goto Fail;
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309 |
}
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310 |
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311 |
if ( FT_STREAM_SKIP( tables[i].offset - stream->pos ) )
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312 |
{
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313 |
error = PCF_Err_Invalid_Stream_Skip;
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314 |
goto Fail;
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315 |
}
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316 |
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317 |
*asize = tables[i].size;
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318 |
*aformat = tables[i].format;
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319 |
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320 |
return PCF_Err_Ok;
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321 |
}
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322 |
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323 |
Fail:
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324 |
*asize = 0;
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325 |
return error;
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326 |
}
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327 |
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328 |
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329 |
static FT_Bool
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330 |
pcf_has_table_type( PCF_Table tables,
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331 |
FT_ULong ntables, /* same as PCF_Toc->count */
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332 |
FT_ULong type )
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|
333 |
{
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|
334 |
FT_ULong i;
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335 |
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336 |
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337 |
for ( i = 0; i < ntables; i++ )
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|
338 |
if ( tables[i].type == type )
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|
339 |
return TRUE;
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340 |
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341 |
return FALSE;
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|
342 |
}
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|
343 |
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344 |
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|
345 |
#define PCF_PROPERTY_SIZE 9
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346 |
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|
347 |
static
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|
348 |
const FT_Frame_Field pcf_property_header[] =
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|
349 |
{
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|
350 |
#undef FT_STRUCTURE
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|
351 |
#define FT_STRUCTURE PCF_ParsePropertyRec
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352 |
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353 |
FT_FRAME_START( PCF_PROPERTY_SIZE ),
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|
354 |
FT_FRAME_LONG_LE( name ),
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|
355 |
FT_FRAME_BYTE ( isString ),
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|
356 |
FT_FRAME_LONG_LE( value ),
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|
357 |
FT_FRAME_END
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|
358 |
};
|
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|
359 |
|
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|
360 |
|
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|
361 |
static
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|
362 |
const FT_Frame_Field pcf_property_msb_header[] =
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|
|
363 |
{
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|
364 |
#undef FT_STRUCTURE
|
|
|
365 |
#define FT_STRUCTURE PCF_ParsePropertyRec
|
|
|
366 |
|
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|
367 |
FT_FRAME_START( PCF_PROPERTY_SIZE ),
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|
368 |
FT_FRAME_LONG( name ),
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|
369 |
FT_FRAME_BYTE( isString ),
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|
370 |
FT_FRAME_LONG( value ),
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|
371 |
FT_FRAME_END
|
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|
372 |
};
|
|
|
373 |
|
|
|
374 |
|
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|
375 |
FT_LOCAL_DEF( PCF_Property )
|
|
|
376 |
pcf_find_property( PCF_Face face,
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|
|
377 |
const FT_String* prop )
|
|
|
378 |
{
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|
|
379 |
PCF_Property properties = face->properties;
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|
|
380 |
FT_Bool found = 0;
|
|
|
381 |
int i;
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|
|
382 |
|
|
|
383 |
|
|
|
384 |
for ( i = 0 ; i < face->nprops && !found; i++ )
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|
385 |
{
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|
386 |
if ( !ft_strcmp( properties[i].name, prop ) )
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|
|
387 |
found = 1;
|
|
|
388 |
}
|
|
|
389 |
|
|
|
390 |
if ( found )
|
|
|
391 |
return properties + i - 1;
|
|
|
392 |
else
|
|
|
393 |
return NULL;
|
|
|
394 |
}
|
|
|
395 |
|
|
|
396 |
|
|
|
397 |
static FT_Error
|
|
|
398 |
pcf_get_properties( FT_Stream stream,
|
|
|
399 |
PCF_Face face )
|
|
|
400 |
{
|
|
|
401 |
PCF_ParseProperty props = 0;
|
|
|
402 |
PCF_Property properties;
|
|
|
403 |
FT_ULong nprops, i;
|
|
|
404 |
FT_ULong format, size;
|
|
|
405 |
FT_Error error;
|
|
|
406 |
FT_Memory memory = FT_FACE(face)->memory;
|
|
|
407 |
FT_ULong string_size;
|
|
|
408 |
FT_String* strings = 0;
|
|
|
409 |
|
|
|
410 |
|
|
|
411 |
error = pcf_seek_to_table_type( stream,
|
|
|
412 |
face->toc.tables,
|
|
|
413 |
face->toc.count,
|
|
|
414 |
PCF_PROPERTIES,
|
|
|
415 |
&format,
|
|
|
416 |
&size );
|
|
|
417 |
if ( error )
|
|
|
418 |
goto Bail;
|
|
|
419 |
|
|
|
420 |
if ( FT_READ_ULONG_LE( format ) )
|
|
|
421 |
goto Bail;
|
|
|
422 |
|
|
|
423 |
FT_TRACE4(( "pcf_get_properties:\n" ));
|
|
|
424 |
|
|
|
425 |
FT_TRACE4(( " format = %ld\n", format ));
|
|
|
426 |
|
|
|
427 |
if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
|
|
|
428 |
goto Bail;
|
|
|
429 |
|
|
|
430 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
431 |
(void)FT_READ_ULONG( nprops );
|
|
|
432 |
else
|
|
|
433 |
(void)FT_READ_ULONG_LE( nprops );
|
|
|
434 |
if ( error )
|
|
|
435 |
goto Bail;
|
|
|
436 |
|
|
|
437 |
FT_TRACE4(( " nprop = %d (truncate %d props)\n",
|
|
|
438 |
(int)nprops, nprops - (int)nprops ));
|
|
|
439 |
|
|
|
440 |
nprops = (int)nprops;
|
|
|
441 |
|
|
|
442 |
/* rough estimate */
|
|
|
443 |
if ( nprops > size / PCF_PROPERTY_SIZE )
|
|
|
444 |
{
|
|
|
445 |
error = PCF_Err_Invalid_Table;
|
|
|
446 |
goto Bail;
|
|
|
447 |
}
|
|
|
448 |
|
|
|
449 |
face->nprops = (int)nprops;
|
|
|
450 |
|
|
|
451 |
if ( FT_NEW_ARRAY( props, nprops ) )
|
|
|
452 |
goto Bail;
|
|
|
453 |
|
|
|
454 |
for ( i = 0; i < nprops; i++ )
|
|
|
455 |
{
|
|
|
456 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
457 |
{
|
|
|
458 |
if ( FT_STREAM_READ_FIELDS( pcf_property_msb_header, props + i ) )
|
|
|
459 |
goto Bail;
|
|
|
460 |
}
|
|
|
461 |
else
|
|
|
462 |
{
|
|
|
463 |
if ( FT_STREAM_READ_FIELDS( pcf_property_header, props + i ) )
|
|
|
464 |
goto Bail;
|
|
|
465 |
}
|
|
|
466 |
}
|
|
|
467 |
|
|
|
468 |
/* pad the property array */
|
|
|
469 |
/* */
|
|
|
470 |
/* clever here - nprops is the same as the number of odd-units read, */
|
|
|
471 |
/* as only isStringProp are odd length (Keith Packard) */
|
|
|
472 |
/* */
|
|
|
473 |
if ( nprops & 3 )
|
|
|
474 |
{
|
|
|
475 |
i = 4 - ( nprops & 3 );
|
|
|
476 |
if ( FT_STREAM_SKIP( i ) )
|
|
|
477 |
{
|
|
|
478 |
error = PCF_Err_Invalid_Stream_Skip;
|
|
|
479 |
goto Bail;
|
|
|
480 |
}
|
|
|
481 |
}
|
|
|
482 |
|
|
|
483 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
484 |
(void)FT_READ_ULONG( string_size );
|
|
|
485 |
else
|
|
|
486 |
(void)FT_READ_ULONG_LE( string_size );
|
|
|
487 |
if ( error )
|
|
|
488 |
goto Bail;
|
|
|
489 |
|
|
|
490 |
FT_TRACE4(( " string_size = %ld\n", string_size ));
|
|
|
491 |
|
|
|
492 |
/* rough estimate */
|
|
|
493 |
if ( string_size > size - nprops * PCF_PROPERTY_SIZE )
|
|
|
494 |
{
|
|
|
495 |
error = PCF_Err_Invalid_Table;
|
|
|
496 |
goto Bail;
|
|
|
497 |
}
|
|
|
498 |
|
|
|
499 |
if ( FT_NEW_ARRAY( strings, string_size ) )
|
|
|
500 |
goto Bail;
|
|
|
501 |
|
|
|
502 |
error = FT_Stream_Read( stream, (FT_Byte*)strings, string_size );
|
|
|
503 |
if ( error )
|
|
|
504 |
goto Bail;
|
|
|
505 |
|
|
|
506 |
if ( FT_NEW_ARRAY( properties, nprops ) )
|
|
|
507 |
goto Bail;
|
|
|
508 |
|
|
|
509 |
face->properties = properties;
|
|
|
510 |
|
|
|
511 |
for ( i = 0; i < nprops; i++ )
|
|
|
512 |
{
|
|
|
513 |
FT_Long name_offset = props[i].name;
|
|
|
514 |
|
|
|
515 |
|
|
|
516 |
if ( ( name_offset < 0 ) ||
|
|
|
517 |
( (FT_ULong)name_offset > string_size ) )
|
|
|
518 |
{
|
|
|
519 |
error = PCF_Err_Invalid_Offset;
|
|
|
520 |
goto Bail;
|
|
|
521 |
}
|
|
|
522 |
|
|
|
523 |
if ( FT_STRDUP( properties[i].name, strings + name_offset ) )
|
|
|
524 |
goto Bail;
|
|
|
525 |
|
|
|
526 |
FT_TRACE4(( " %s:", properties[i].name ));
|
|
|
527 |
|
|
|
528 |
properties[i].isString = props[i].isString;
|
|
|
529 |
|
|
|
530 |
if ( props[i].isString )
|
|
|
531 |
{
|
|
|
532 |
FT_Long value_offset = props[i].value;
|
|
|
533 |
|
|
|
534 |
|
|
|
535 |
if ( ( value_offset < 0 ) ||
|
|
|
536 |
( (FT_ULong)value_offset > string_size ) )
|
|
|
537 |
{
|
|
|
538 |
error = PCF_Err_Invalid_Offset;
|
|
|
539 |
goto Bail;
|
|
|
540 |
}
|
|
|
541 |
|
|
|
542 |
if ( FT_STRDUP( properties[i].value.atom, strings + value_offset ) )
|
|
|
543 |
goto Bail;
|
|
|
544 |
|
|
|
545 |
FT_TRACE4(( " `%s'\n", properties[i].value.atom ));
|
|
|
546 |
}
|
|
|
547 |
else
|
|
|
548 |
{
|
|
|
549 |
properties[i].value.l = props[i].value;
|
|
|
550 |
|
|
|
551 |
FT_TRACE4(( " %d\n", properties[i].value.l ));
|
|
|
552 |
}
|
|
|
553 |
}
|
|
|
554 |
|
|
|
555 |
error = PCF_Err_Ok;
|
|
|
556 |
|
|
|
557 |
Bail:
|
|
|
558 |
FT_FREE( props );
|
|
|
559 |
FT_FREE( strings );
|
|
|
560 |
|
|
|
561 |
return error;
|
|
|
562 |
}
|
|
|
563 |
|
|
|
564 |
|
|
|
565 |
static FT_Error
|
|
|
566 |
pcf_get_metrics( FT_Stream stream,
|
|
|
567 |
PCF_Face face )
|
|
|
568 |
{
|
|
|
569 |
FT_Error error = PCF_Err_Ok;
|
|
|
570 |
FT_Memory memory = FT_FACE(face)->memory;
|
|
|
571 |
FT_ULong format, size;
|
|
|
572 |
PCF_Metric metrics = 0;
|
|
|
573 |
FT_ULong nmetrics, i;
|
|
|
574 |
|
|
|
575 |
|
|
|
576 |
error = pcf_seek_to_table_type( stream,
|
|
|
577 |
face->toc.tables,
|
|
|
578 |
face->toc.count,
|
|
|
579 |
PCF_METRICS,
|
|
|
580 |
&format,
|
|
|
581 |
&size );
|
|
|
582 |
if ( error )
|
|
|
583 |
return error;
|
|
|
584 |
|
|
|
585 |
if ( FT_READ_ULONG_LE( format ) )
|
|
|
586 |
goto Bail;
|
|
|
587 |
|
|
|
588 |
if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) &&
|
|
|
589 |
!PCF_FORMAT_MATCH( format, PCF_COMPRESSED_METRICS ) )
|
|
|
590 |
return PCF_Err_Invalid_File_Format;
|
|
|
591 |
|
|
|
592 |
if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
|
|
|
593 |
{
|
|
|
594 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
595 |
(void)FT_READ_ULONG( nmetrics );
|
|
|
596 |
else
|
|
|
597 |
(void)FT_READ_ULONG_LE( nmetrics );
|
|
|
598 |
}
|
|
|
599 |
else
|
|
|
600 |
{
|
|
|
601 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
602 |
(void)FT_READ_USHORT( nmetrics );
|
|
|
603 |
else
|
|
|
604 |
(void)FT_READ_USHORT_LE( nmetrics );
|
|
|
605 |
}
|
|
|
606 |
if ( error )
|
|
|
607 |
return PCF_Err_Invalid_File_Format;
|
|
|
608 |
|
|
|
609 |
face->nmetrics = nmetrics;
|
|
|
610 |
|
|
|
611 |
if ( !nmetrics )
|
|
|
612 |
return PCF_Err_Invalid_Table;
|
|
|
613 |
|
|
|
614 |
FT_TRACE4(( "pcf_get_metrics:\n" ));
|
|
|
615 |
|
|
|
616 |
FT_TRACE4(( " number of metrics: %d\n", nmetrics ));
|
|
|
617 |
|
|
|
618 |
/* rough estimate */
|
|
|
619 |
if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
|
|
|
620 |
{
|
|
|
621 |
if ( nmetrics > size / PCF_METRIC_SIZE )
|
|
|
622 |
return PCF_Err_Invalid_Table;
|
|
|
623 |
}
|
|
|
624 |
else
|
|
|
625 |
{
|
|
|
626 |
if ( nmetrics > size / PCF_COMPRESSED_METRIC_SIZE )
|
|
|
627 |
return PCF_Err_Invalid_Table;
|
|
|
628 |
}
|
|
|
629 |
|
|
|
630 |
if ( FT_NEW_ARRAY( face->metrics, nmetrics ) )
|
|
|
631 |
return PCF_Err_Out_Of_Memory;
|
|
|
632 |
|
|
|
633 |
metrics = face->metrics;
|
|
|
634 |
for ( i = 0; i < nmetrics; i++ )
|
|
|
635 |
{
|
|
|
636 |
error = pcf_get_metric( stream, format, metrics + i );
|
|
|
637 |
|
|
|
638 |
metrics[i].bits = 0;
|
|
|
639 |
|
|
|
640 |
FT_TRACE5(( " idx %d: width=%d, "
|
|
|
641 |
"lsb=%d, rsb=%d, ascent=%d, descent=%d, swidth=%d\n",
|
|
|
642 |
i,
|
|
|
643 |
( metrics + i )->characterWidth,
|
|
|
644 |
( metrics + i )->leftSideBearing,
|
|
|
645 |
( metrics + i )->rightSideBearing,
|
|
|
646 |
( metrics + i )->ascent,
|
|
|
647 |
( metrics + i )->descent,
|
|
|
648 |
( metrics + i )->attributes ));
|
|
|
649 |
|
|
|
650 |
if ( error )
|
|
|
651 |
break;
|
|
|
652 |
}
|
|
|
653 |
|
|
|
654 |
if ( error )
|
|
|
655 |
FT_FREE( face->metrics );
|
|
|
656 |
|
|
|
657 |
Bail:
|
|
|
658 |
return error;
|
|
|
659 |
}
|
|
|
660 |
|
|
|
661 |
|
|
|
662 |
static FT_Error
|
|
|
663 |
pcf_get_bitmaps( FT_Stream stream,
|
|
|
664 |
PCF_Face face )
|
|
|
665 |
{
|
|
|
666 |
FT_Error error = PCF_Err_Ok;
|
|
|
667 |
FT_Memory memory = FT_FACE(face)->memory;
|
|
|
668 |
FT_Long* offsets;
|
|
|
669 |
FT_Long bitmapSizes[GLYPHPADOPTIONS];
|
|
|
670 |
FT_ULong format, size;
|
|
|
671 |
FT_ULong nbitmaps, i, sizebitmaps = 0;
|
|
|
672 |
|
|
|
673 |
|
|
|
674 |
error = pcf_seek_to_table_type( stream,
|
|
|
675 |
face->toc.tables,
|
|
|
676 |
face->toc.count,
|
|
|
677 |
PCF_BITMAPS,
|
|
|
678 |
&format,
|
|
|
679 |
&size );
|
|
|
680 |
if ( error )
|
|
|
681 |
return error;
|
|
|
682 |
|
|
|
683 |
error = FT_Stream_EnterFrame( stream, 8 );
|
|
|
684 |
if ( error )
|
|
|
685 |
return error;
|
|
|
686 |
|
|
|
687 |
format = FT_GET_ULONG_LE();
|
|
|
688 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
689 |
nbitmaps = FT_GET_ULONG();
|
|
|
690 |
else
|
|
|
691 |
nbitmaps = FT_GET_ULONG_LE();
|
|
|
692 |
|
|
|
693 |
FT_Stream_ExitFrame( stream );
|
|
|
694 |
|
|
|
695 |
if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
|
|
|
696 |
return PCF_Err_Invalid_File_Format;
|
|
|
697 |
|
|
|
698 |
FT_TRACE4(( "pcf_get_bitmaps:\n" ));
|
|
|
699 |
|
|
|
700 |
FT_TRACE4(( " number of bitmaps: %d\n", nbitmaps ));
|
|
|
701 |
|
|
|
702 |
/* XXX: PCF_Face->nmetrics is singed FT_Long, see pcf.h */
|
|
|
703 |
if ( face->nmetrics < 0 || nbitmaps != ( FT_ULong )face->nmetrics )
|
|
|
704 |
return PCF_Err_Invalid_File_Format;
|
|
|
705 |
|
|
|
706 |
if ( FT_NEW_ARRAY( offsets, nbitmaps ) )
|
|
|
707 |
return error;
|
|
|
708 |
|
|
|
709 |
for ( i = 0; i < nbitmaps; i++ )
|
|
|
710 |
{
|
|
|
711 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
712 |
(void)FT_READ_LONG( offsets[i] );
|
|
|
713 |
else
|
|
|
714 |
(void)FT_READ_LONG_LE( offsets[i] );
|
|
|
715 |
|
|
|
716 |
FT_TRACE5(( " bitmap %d: offset %ld (0x%lX)\n",
|
|
|
717 |
i, offsets[i], offsets[i] ));
|
|
|
718 |
}
|
|
|
719 |
if ( error )
|
|
|
720 |
goto Bail;
|
|
|
721 |
|
|
|
722 |
for ( i = 0; i < GLYPHPADOPTIONS; i++ )
|
|
|
723 |
{
|
|
|
724 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
725 |
(void)FT_READ_LONG( bitmapSizes[i] );
|
|
|
726 |
else
|
|
|
727 |
(void)FT_READ_LONG_LE( bitmapSizes[i] );
|
|
|
728 |
if ( error )
|
|
|
729 |
goto Bail;
|
|
|
730 |
|
|
|
731 |
sizebitmaps = bitmapSizes[PCF_GLYPH_PAD_INDEX( format )];
|
|
|
732 |
|
|
|
733 |
FT_TRACE4(( " padding %d implies a size of %ld\n", i, bitmapSizes[i] ));
|
|
|
734 |
}
|
|
|
735 |
|
|
|
736 |
FT_TRACE4(( " %d bitmaps, padding index %ld\n",
|
|
|
737 |
nbitmaps,
|
|
|
738 |
PCF_GLYPH_PAD_INDEX( format ) ));
|
|
|
739 |
FT_TRACE4(( " bitmap size = %d\n", sizebitmaps ));
|
|
|
740 |
|
|
|
741 |
FT_UNUSED( sizebitmaps ); /* only used for debugging */
|
|
|
742 |
|
|
|
743 |
for ( i = 0; i < nbitmaps; i++ )
|
|
|
744 |
{
|
|
|
745 |
/* rough estimate */
|
|
|
746 |
if ( ( offsets[i] < 0 ) ||
|
|
|
747 |
( (FT_ULong)offsets[i] > size ) )
|
|
|
748 |
{
|
|
|
749 |
FT_TRACE0(( "pcf_get_bitmaps:"
|
|
|
750 |
" invalid offset to bitmap data of glyph %d\n", i ));
|
|
|
751 |
}
|
|
|
752 |
else
|
|
|
753 |
face->metrics[i].bits = stream->pos + offsets[i];
|
|
|
754 |
}
|
|
|
755 |
|
|
|
756 |
face->bitmapsFormat = format;
|
|
|
757 |
|
|
|
758 |
Bail:
|
|
|
759 |
FT_FREE( offsets );
|
|
|
760 |
return error;
|
|
|
761 |
}
|
|
|
762 |
|
|
|
763 |
|
|
|
764 |
static FT_Error
|
|
|
765 |
pcf_get_encodings( FT_Stream stream,
|
|
|
766 |
PCF_Face face )
|
|
|
767 |
{
|
|
|
768 |
FT_Error error = PCF_Err_Ok;
|
|
|
769 |
FT_Memory memory = FT_FACE(face)->memory;
|
|
|
770 |
FT_ULong format, size;
|
|
|
771 |
int firstCol, lastCol;
|
|
|
772 |
int firstRow, lastRow;
|
|
|
773 |
int nencoding, encodingOffset;
|
|
|
774 |
int i, j;
|
|
|
775 |
PCF_Encoding tmpEncoding, encoding = 0;
|
|
|
776 |
|
|
|
777 |
|
|
|
778 |
error = pcf_seek_to_table_type( stream,
|
|
|
779 |
face->toc.tables,
|
|
|
780 |
face->toc.count,
|
|
|
781 |
PCF_BDF_ENCODINGS,
|
|
|
782 |
&format,
|
|
|
783 |
&size );
|
|
|
784 |
if ( error )
|
|
|
785 |
return error;
|
|
|
786 |
|
|
|
787 |
error = FT_Stream_EnterFrame( stream, 14 );
|
|
|
788 |
if ( error )
|
|
|
789 |
return error;
|
|
|
790 |
|
|
|
791 |
format = FT_GET_ULONG_LE();
|
|
|
792 |
|
|
|
793 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
794 |
{
|
|
|
795 |
firstCol = FT_GET_SHORT();
|
|
|
796 |
lastCol = FT_GET_SHORT();
|
|
|
797 |
firstRow = FT_GET_SHORT();
|
|
|
798 |
lastRow = FT_GET_SHORT();
|
|
|
799 |
face->defaultChar = FT_GET_SHORT();
|
|
|
800 |
}
|
|
|
801 |
else
|
|
|
802 |
{
|
|
|
803 |
firstCol = FT_GET_SHORT_LE();
|
|
|
804 |
lastCol = FT_GET_SHORT_LE();
|
|
|
805 |
firstRow = FT_GET_SHORT_LE();
|
|
|
806 |
lastRow = FT_GET_SHORT_LE();
|
|
|
807 |
face->defaultChar = FT_GET_SHORT_LE();
|
|
|
808 |
}
|
|
|
809 |
|
|
|
810 |
FT_Stream_ExitFrame( stream );
|
|
|
811 |
|
|
|
812 |
if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
|
|
|
813 |
return PCF_Err_Invalid_File_Format;
|
|
|
814 |
|
|
|
815 |
FT_TRACE4(( "pdf_get_encodings:\n" ));
|
|
|
816 |
|
|
|
817 |
FT_TRACE4(( " firstCol %d, lastCol %d, firstRow %d, lastRow %d\n",
|
|
|
818 |
firstCol, lastCol, firstRow, lastRow ));
|
|
|
819 |
|
|
|
820 |
nencoding = ( lastCol - firstCol + 1 ) * ( lastRow - firstRow + 1 );
|
|
|
821 |
|
|
|
822 |
if ( FT_NEW_ARRAY( tmpEncoding, nencoding ) )
|
|
|
823 |
return PCF_Err_Out_Of_Memory;
|
|
|
824 |
|
|
|
825 |
error = FT_Stream_EnterFrame( stream, 2 * nencoding );
|
|
|
826 |
if ( error )
|
|
|
827 |
goto Bail;
|
|
|
828 |
|
|
|
829 |
for ( i = 0, j = 0 ; i < nencoding; i++ )
|
|
|
830 |
{
|
|
|
831 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
832 |
encodingOffset = FT_GET_SHORT();
|
|
|
833 |
else
|
|
|
834 |
encodingOffset = FT_GET_SHORT_LE();
|
|
|
835 |
|
|
|
836 |
if ( encodingOffset != -1 )
|
|
|
837 |
{
|
|
|
838 |
tmpEncoding[j].enc = ( ( ( i / ( lastCol - firstCol + 1 ) ) +
|
|
|
839 |
firstRow ) * 256 ) +
|
|
|
840 |
( ( i % ( lastCol - firstCol + 1 ) ) +
|
|
|
841 |
firstCol );
|
|
|
842 |
|
|
|
843 |
tmpEncoding[j].glyph = (FT_Short)encodingOffset;
|
|
|
844 |
|
|
|
845 |
FT_TRACE5(( " code %d (0x%04X): idx %d\n",
|
|
|
846 |
tmpEncoding[j].enc, tmpEncoding[j].enc,
|
|
|
847 |
tmpEncoding[j].glyph ));
|
|
|
848 |
|
|
|
849 |
j++;
|
|
|
850 |
}
|
|
|
851 |
}
|
|
|
852 |
FT_Stream_ExitFrame( stream );
|
|
|
853 |
|
|
|
854 |
if ( FT_NEW_ARRAY( encoding, j ) )
|
|
|
855 |
goto Bail;
|
|
|
856 |
|
|
|
857 |
for ( i = 0; i < j; i++ )
|
|
|
858 |
{
|
|
|
859 |
encoding[i].enc = tmpEncoding[i].enc;
|
|
|
860 |
encoding[i].glyph = tmpEncoding[i].glyph;
|
|
|
861 |
}
|
|
|
862 |
|
|
|
863 |
face->nencodings = j;
|
|
|
864 |
face->encodings = encoding;
|
|
|
865 |
FT_FREE( tmpEncoding );
|
|
|
866 |
|
|
|
867 |
return error;
|
|
|
868 |
|
|
|
869 |
Bail:
|
|
|
870 |
FT_FREE( encoding );
|
|
|
871 |
FT_FREE( tmpEncoding );
|
|
|
872 |
return error;
|
|
|
873 |
}
|
|
|
874 |
|
|
|
875 |
|
|
|
876 |
static
|
|
|
877 |
const FT_Frame_Field pcf_accel_header[] =
|
|
|
878 |
{
|
|
|
879 |
#undef FT_STRUCTURE
|
|
|
880 |
#define FT_STRUCTURE PCF_AccelRec
|
|
|
881 |
|
|
|
882 |
FT_FRAME_START( 20 ),
|
|
|
883 |
FT_FRAME_BYTE ( noOverlap ),
|
|
|
884 |
FT_FRAME_BYTE ( constantMetrics ),
|
|
|
885 |
FT_FRAME_BYTE ( terminalFont ),
|
|
|
886 |
FT_FRAME_BYTE ( constantWidth ),
|
|
|
887 |
FT_FRAME_BYTE ( inkInside ),
|
|
|
888 |
FT_FRAME_BYTE ( inkMetrics ),
|
|
|
889 |
FT_FRAME_BYTE ( drawDirection ),
|
|
|
890 |
FT_FRAME_SKIP_BYTES( 1 ),
|
|
|
891 |
FT_FRAME_LONG_LE ( fontAscent ),
|
|
|
892 |
FT_FRAME_LONG_LE ( fontDescent ),
|
|
|
893 |
FT_FRAME_LONG_LE ( maxOverlap ),
|
|
|
894 |
FT_FRAME_END
|
|
|
895 |
};
|
|
|
896 |
|
|
|
897 |
|
|
|
898 |
static
|
|
|
899 |
const FT_Frame_Field pcf_accel_msb_header[] =
|
|
|
900 |
{
|
|
|
901 |
#undef FT_STRUCTURE
|
|
|
902 |
#define FT_STRUCTURE PCF_AccelRec
|
|
|
903 |
|
|
|
904 |
FT_FRAME_START( 20 ),
|
|
|
905 |
FT_FRAME_BYTE ( noOverlap ),
|
|
|
906 |
FT_FRAME_BYTE ( constantMetrics ),
|
|
|
907 |
FT_FRAME_BYTE ( terminalFont ),
|
|
|
908 |
FT_FRAME_BYTE ( constantWidth ),
|
|
|
909 |
FT_FRAME_BYTE ( inkInside ),
|
|
|
910 |
FT_FRAME_BYTE ( inkMetrics ),
|
|
|
911 |
FT_FRAME_BYTE ( drawDirection ),
|
|
|
912 |
FT_FRAME_SKIP_BYTES( 1 ),
|
|
|
913 |
FT_FRAME_LONG ( fontAscent ),
|
|
|
914 |
FT_FRAME_LONG ( fontDescent ),
|
|
|
915 |
FT_FRAME_LONG ( maxOverlap ),
|
|
|
916 |
FT_FRAME_END
|
|
|
917 |
};
|
|
|
918 |
|
|
|
919 |
|
|
|
920 |
static FT_Error
|
|
|
921 |
pcf_get_accel( FT_Stream stream,
|
|
|
922 |
PCF_Face face,
|
|
|
923 |
FT_ULong type )
|
|
|
924 |
{
|
|
|
925 |
FT_ULong format, size;
|
|
|
926 |
FT_Error error = PCF_Err_Ok;
|
|
|
927 |
PCF_Accel accel = &face->accel;
|
|
|
928 |
|
|
|
929 |
|
|
|
930 |
error = pcf_seek_to_table_type( stream,
|
|
|
931 |
face->toc.tables,
|
|
|
932 |
face->toc.count,
|
|
|
933 |
type,
|
|
|
934 |
&format,
|
|
|
935 |
&size );
|
|
|
936 |
if ( error )
|
|
|
937 |
goto Bail;
|
|
|
938 |
|
|
|
939 |
if ( FT_READ_ULONG_LE( format ) )
|
|
|
940 |
goto Bail;
|
|
|
941 |
|
|
|
942 |
if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) &&
|
|
|
943 |
!PCF_FORMAT_MATCH( format, PCF_ACCEL_W_INKBOUNDS ) )
|
|
|
944 |
goto Bail;
|
|
|
945 |
|
|
|
946 |
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
|
|
|
947 |
{
|
|
|
948 |
if ( FT_STREAM_READ_FIELDS( pcf_accel_msb_header, accel ) )
|
|
|
949 |
goto Bail;
|
|
|
950 |
}
|
|
|
951 |
else
|
|
|
952 |
{
|
|
|
953 |
if ( FT_STREAM_READ_FIELDS( pcf_accel_header, accel ) )
|
|
|
954 |
goto Bail;
|
|
|
955 |
}
|
|
|
956 |
|
|
|
957 |
error = pcf_get_metric( stream,
|
|
|
958 |
format & ( ~PCF_FORMAT_MASK ),
|
|
|
959 |
&(accel->minbounds) );
|
|
|
960 |
if ( error )
|
|
|
961 |
goto Bail;
|
|
|
962 |
|
|
|
963 |
error = pcf_get_metric( stream,
|
|
|
964 |
format & ( ~PCF_FORMAT_MASK ),
|
|
|
965 |
&(accel->maxbounds) );
|
|
|
966 |
if ( error )
|
|
|
967 |
goto Bail;
|
|
|
968 |
|
|
|
969 |
if ( PCF_FORMAT_MATCH( format, PCF_ACCEL_W_INKBOUNDS ) )
|
|
|
970 |
{
|
|
|
971 |
error = pcf_get_metric( stream,
|
|
|
972 |
format & ( ~PCF_FORMAT_MASK ),
|
|
|
973 |
&(accel->ink_minbounds) );
|
|
|
974 |
if ( error )
|
|
|
975 |
goto Bail;
|
|
|
976 |
|
|
|
977 |
error = pcf_get_metric( stream,
|
|
|
978 |
format & ( ~PCF_FORMAT_MASK ),
|
|
|
979 |
&(accel->ink_maxbounds) );
|
|
|
980 |
if ( error )
|
|
|
981 |
goto Bail;
|
|
|
982 |
}
|
|
|
983 |
else
|
|
|
984 |
{
|
|
|
985 |
accel->ink_minbounds = accel->minbounds; /* I'm not sure about this */
|
|
|
986 |
accel->ink_maxbounds = accel->maxbounds;
|
|
|
987 |
}
|
|
|
988 |
|
|
|
989 |
Bail:
|
|
|
990 |
return error;
|
|
|
991 |
}
|
|
|
992 |
|
|
|
993 |
|
|
|
994 |
static FT_Error
|
|
|
995 |
pcf_interpret_style( PCF_Face pcf )
|
|
|
996 |
{
|
|
|
997 |
FT_Error error = PCF_Err_Ok;
|
|
|
998 |
FT_Face face = FT_FACE( pcf );
|
|
|
999 |
FT_Memory memory = face->memory;
|
|
|
1000 |
|
|
|
1001 |
PCF_Property prop;
|
|
|
1002 |
|
|
|
1003 |
size_t nn, len;
|
|
|
1004 |
char* strings[4] = { NULL, NULL, NULL, NULL };
|
|
|
1005 |
size_t lengths[4];
|
|
|
1006 |
|
|
|
1007 |
|
|
|
1008 |
face->style_flags = 0;
|
|
|
1009 |
|
|
|
1010 |
prop = pcf_find_property( pcf, "SLANT" );
|
|
|
1011 |
if ( prop && prop->isString &&
|
|
|
1012 |
( *(prop->value.atom) == 'O' || *(prop->value.atom) == 'o' ||
|
|
|
1013 |
*(prop->value.atom) == 'I' || *(prop->value.atom) == 'i' ) )
|
|
|
1014 |
{
|
|
|
1015 |
face->style_flags |= FT_STYLE_FLAG_ITALIC;
|
|
|
1016 |
strings[2] = ( *(prop->value.atom) == 'O' ||
|
|
|
1017 |
*(prop->value.atom) == 'o' ) ? (char *)"Oblique"
|
|
|
1018 |
: (char *)"Italic";
|
|
|
1019 |
}
|
|
|
1020 |
|
|
|
1021 |
prop = pcf_find_property( pcf, "WEIGHT_NAME" );
|
|
|
1022 |
if ( prop && prop->isString &&
|
|
|
1023 |
( *(prop->value.atom) == 'B' || *(prop->value.atom) == 'b' ) )
|
|
|
1024 |
{
|
|
|
1025 |
face->style_flags |= FT_STYLE_FLAG_BOLD;
|
|
|
1026 |
strings[1] = (char *)"Bold";
|
|
|
1027 |
}
|
|
|
1028 |
|
|
|
1029 |
prop = pcf_find_property( pcf, "SETWIDTH_NAME" );
|
|
|
1030 |
if ( prop && prop->isString &&
|
|
|
1031 |
*(prop->value.atom) &&
|
|
|
1032 |
!( *(prop->value.atom) == 'N' || *(prop->value.atom) == 'n' ) )
|
|
|
1033 |
strings[3] = (char *)(prop->value.atom);
|
|
|
1034 |
|
|
|
1035 |
prop = pcf_find_property( pcf, "ADD_STYLE_NAME" );
|
|
|
1036 |
if ( prop && prop->isString &&
|
|
|
1037 |
*(prop->value.atom) &&
|
|
|
1038 |
!( *(prop->value.atom) == 'N' || *(prop->value.atom) == 'n' ) )
|
|
|
1039 |
strings[0] = (char *)(prop->value.atom);
|
|
|
1040 |
|
|
|
1041 |
for ( len = 0, nn = 0; nn < 4; nn++ )
|
|
|
1042 |
{
|
|
|
1043 |
lengths[nn] = 0;
|
|
|
1044 |
if ( strings[nn] )
|
|
|
1045 |
{
|
|
|
1046 |
lengths[nn] = ft_strlen( strings[nn] );
|
|
|
1047 |
len += lengths[nn] + 1;
|
|
|
1048 |
}
|
|
|
1049 |
}
|
|
|
1050 |
|
|
|
1051 |
if ( len == 0 )
|
|
|
1052 |
{
|
|
|
1053 |
strings[0] = (char *)"Regular";
|
|
|
1054 |
lengths[0] = ft_strlen( strings[0] );
|
|
|
1055 |
len = lengths[0] + 1;
|
|
|
1056 |
}
|
|
|
1057 |
|
|
|
1058 |
{
|
|
|
1059 |
char* s;
|
|
|
1060 |
|
|
|
1061 |
|
|
|
1062 |
if ( FT_ALLOC( face->style_name, len ) )
|
|
|
1063 |
return error;
|
|
|
1064 |
|
|
|
1065 |
s = face->style_name;
|
|
|
1066 |
|
|
|
1067 |
for ( nn = 0; nn < 4; nn++ )
|
|
|
1068 |
{
|
|
|
1069 |
char* src = strings[nn];
|
|
|
1070 |
|
|
|
1071 |
|
|
|
1072 |
len = lengths[nn];
|
|
|
1073 |
|
|
|
1074 |
if ( src == NULL )
|
|
|
1075 |
continue;
|
|
|
1076 |
|
|
|
1077 |
/* separate elements with a space */
|
|
|
1078 |
if ( s != face->style_name )
|
|
|
1079 |
*s++ = ' ';
|
|
|
1080 |
|
|
|
1081 |
ft_memcpy( s, src, len );
|
|
|
1082 |
|
|
|
1083 |
/* need to convert spaces to dashes for */
|
|
|
1084 |
/* add_style_name and setwidth_name */
|
|
|
1085 |
if ( nn == 0 || nn == 3 )
|
|
|
1086 |
{
|
|
|
1087 |
size_t mm;
|
|
|
1088 |
|
|
|
1089 |
|
|
|
1090 |
for ( mm = 0; mm < len; mm++ )
|
|
|
1091 |
if (s[mm] == ' ')
|
|
|
1092 |
s[mm] = '-';
|
|
|
1093 |
}
|
|
|
1094 |
|
|
|
1095 |
s += len;
|
|
|
1096 |
}
|
|
|
1097 |
*s = 0;
|
|
|
1098 |
}
|
|
|
1099 |
|
|
|
1100 |
return error;
|
|
|
1101 |
}
|
|
|
1102 |
|
|
|
1103 |
|
|
|
1104 |
FT_LOCAL_DEF( FT_Error )
|
|
|
1105 |
pcf_load_font( FT_Stream stream,
|
|
|
1106 |
PCF_Face face )
|
|
|
1107 |
{
|
|
|
1108 |
FT_Error error = PCF_Err_Ok;
|
|
|
1109 |
FT_Memory memory = FT_FACE(face)->memory;
|
|
|
1110 |
FT_Bool hasBDFAccelerators;
|
|
|
1111 |
|
|
|
1112 |
|
|
|
1113 |
error = pcf_read_TOC( stream, face );
|
|
|
1114 |
if ( error )
|
|
|
1115 |
goto Exit;
|
|
|
1116 |
|
|
|
1117 |
error = pcf_get_properties( stream, face );
|
|
|
1118 |
if ( error )
|
|
|
1119 |
goto Exit;
|
|
|
1120 |
|
|
|
1121 |
/* Use the old accelerators if no BDF accelerators are in the file. */
|
|
|
1122 |
hasBDFAccelerators = pcf_has_table_type( face->toc.tables,
|
|
|
1123 |
face->toc.count,
|
|
|
1124 |
PCF_BDF_ACCELERATORS );
|
|
|
1125 |
if ( !hasBDFAccelerators )
|
|
|
1126 |
{
|
|
|
1127 |
error = pcf_get_accel( stream, face, PCF_ACCELERATORS );
|
|
|
1128 |
if ( error )
|
|
|
1129 |
goto Exit;
|
|
|
1130 |
}
|
|
|
1131 |
|
|
|
1132 |
/* metrics */
|
|
|
1133 |
error = pcf_get_metrics( stream, face );
|
|
|
1134 |
if ( error )
|
|
|
1135 |
goto Exit;
|
|
|
1136 |
|
|
|
1137 |
/* bitmaps */
|
|
|
1138 |
error = pcf_get_bitmaps( stream, face );
|
|
|
1139 |
if ( error )
|
|
|
1140 |
goto Exit;
|
|
|
1141 |
|
|
|
1142 |
/* encodings */
|
|
|
1143 |
error = pcf_get_encodings( stream, face );
|
|
|
1144 |
if ( error )
|
|
|
1145 |
goto Exit;
|
|
|
1146 |
|
|
|
1147 |
/* BDF style accelerators (i.e. bounds based on encoded glyphs) */
|
|
|
1148 |
if ( hasBDFAccelerators )
|
|
|
1149 |
{
|
|
|
1150 |
error = pcf_get_accel( stream, face, PCF_BDF_ACCELERATORS );
|
|
|
1151 |
if ( error )
|
|
|
1152 |
goto Exit;
|
|
|
1153 |
}
|
|
|
1154 |
|
|
|
1155 |
/* XXX: TO DO: inkmetrics and glyph_names are missing */
|
|
|
1156 |
|
|
|
1157 |
/* now construct the face object */
|
|
|
1158 |
{
|
|
|
1159 |
FT_Face root = FT_FACE( face );
|
|
|
1160 |
PCF_Property prop;
|
|
|
1161 |
|
|
|
1162 |
|
|
|
1163 |
root->num_faces = 1;
|
|
|
1164 |
root->face_index = 0;
|
|
|
1165 |
root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
|
|
|
1166 |
FT_FACE_FLAG_HORIZONTAL |
|
|
|
1167 |
FT_FACE_FLAG_FAST_GLYPHS;
|
|
|
1168 |
|
|
|
1169 |
if ( face->accel.constantWidth )
|
|
|
1170 |
root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
|
|
|
1171 |
|
|
|
1172 |
if ( ( error = pcf_interpret_style( face ) ) != 0 )
|
|
|
1173 |
goto Exit;
|
|
|
1174 |
|
|
|
1175 |
prop = pcf_find_property( face, "FAMILY_NAME" );
|
|
|
1176 |
if ( prop && prop->isString )
|
|
|
1177 |
{
|
|
|
1178 |
if ( FT_STRDUP( root->family_name, prop->value.atom ) )
|
|
|
1179 |
goto Exit;
|
|
|
1180 |
}
|
|
|
1181 |
else
|
|
|
1182 |
root->family_name = NULL;
|
|
|
1183 |
|
|
|
1184 |
/*
|
|
|
1185 |
* Note: We shift all glyph indices by +1 since we must
|
|
|
1186 |
* respect the convention that glyph 0 always corresponds
|
|
|
1187 |
* to the `missing glyph'.
|
|
|
1188 |
*
|
|
|
1189 |
* This implies bumping the number of `available' glyphs by 1.
|
|
|
1190 |
*/
|
|
|
1191 |
root->num_glyphs = face->nmetrics + 1;
|
|
|
1192 |
|
|
|
1193 |
root->num_fixed_sizes = 1;
|
|
|
1194 |
if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
|
|
|
1195 |
goto Exit;
|
|
|
1196 |
|
|
|
1197 |
{
|
|
|
1198 |
FT_Bitmap_Size* bsize = root->available_sizes;
|
|
|
1199 |
FT_Short resolution_x = 0, resolution_y = 0;
|
|
|
1200 |
|
|
|
1201 |
|
|
|
1202 |
FT_MEM_ZERO( bsize, sizeof ( FT_Bitmap_Size ) );
|
|
|
1203 |
|
|
|
1204 |
#if 0
|
|
|
1205 |
bsize->height = face->accel.maxbounds.ascent << 6;
|
|
|
1206 |
#endif
|
|
|
1207 |
bsize->height = (FT_Short)( face->accel.fontAscent +
|
|
|
1208 |
face->accel.fontDescent );
|
|
|
1209 |
|
|
|
1210 |
prop = pcf_find_property( face, "AVERAGE_WIDTH" );
|
|
|
1211 |
if ( prop )
|
|
|
1212 |
bsize->width = (FT_Short)( ( prop->value.l + 5 ) / 10 );
|
|
|
1213 |
else
|
|
|
1214 |
bsize->width = (FT_Short)( bsize->height * 2/3 );
|
|
|
1215 |
|
|
|
1216 |
prop = pcf_find_property( face, "POINT_SIZE" );
|
|
|
1217 |
if ( prop )
|
|
|
1218 |
/* convert from 722.7 decipoints to 72 points per inch */
|
|
|
1219 |
bsize->size =
|
|
|
1220 |
(FT_Pos)( ( prop->value.l * 64 * 7200 + 36135L ) / 72270L );
|
|
|
1221 |
|
|
|
1222 |
prop = pcf_find_property( face, "PIXEL_SIZE" );
|
|
|
1223 |
if ( prop )
|
|
|
1224 |
bsize->y_ppem = (FT_Short)prop->value.l << 6;
|
|
|
1225 |
|
|
|
1226 |
prop = pcf_find_property( face, "RESOLUTION_X" );
|
|
|
1227 |
if ( prop )
|
|
|
1228 |
resolution_x = (FT_Short)prop->value.l;
|
|
|
1229 |
|
|
|
1230 |
prop = pcf_find_property( face, "RESOLUTION_Y" );
|
|
|
1231 |
if ( prop )
|
|
|
1232 |
resolution_y = (FT_Short)prop->value.l;
|
|
|
1233 |
|
|
|
1234 |
if ( bsize->y_ppem == 0 )
|
|
|
1235 |
{
|
|
|
1236 |
bsize->y_ppem = bsize->size;
|
|
|
1237 |
if ( resolution_y )
|
|
|
1238 |
bsize->y_ppem = bsize->y_ppem * resolution_y / 72;
|
|
|
1239 |
}
|
|
|
1240 |
if ( resolution_x && resolution_y )
|
|
|
1241 |
bsize->x_ppem = bsize->y_ppem * resolution_x / resolution_y;
|
|
|
1242 |
else
|
|
|
1243 |
bsize->x_ppem = bsize->y_ppem;
|
|
|
1244 |
}
|
|
|
1245 |
|
|
|
1246 |
/* set up charset */
|
|
|
1247 |
{
|
|
|
1248 |
PCF_Property charset_registry = 0, charset_encoding = 0;
|
|
|
1249 |
|
|
|
1250 |
|
|
|
1251 |
charset_registry = pcf_find_property( face, "CHARSET_REGISTRY" );
|
|
|
1252 |
charset_encoding = pcf_find_property( face, "CHARSET_ENCODING" );
|
|
|
1253 |
|
|
|
1254 |
if ( charset_registry && charset_registry->isString &&
|
|
|
1255 |
charset_encoding && charset_encoding->isString )
|
|
|
1256 |
{
|
|
|
1257 |
if ( FT_STRDUP( face->charset_encoding,
|
|
|
1258 |
charset_encoding->value.atom ) ||
|
|
|
1259 |
FT_STRDUP( face->charset_registry,
|
|
|
1260 |
charset_registry->value.atom ) )
|
|
|
1261 |
goto Exit;
|
|
|
1262 |
}
|
|
|
1263 |
}
|
|
|
1264 |
}
|
|
|
1265 |
|
|
|
1266 |
Exit:
|
|
|
1267 |
if ( error )
|
|
|
1268 |
{
|
|
|
1269 |
/* This is done to respect the behaviour of the original */
|
|
|
1270 |
/* PCF font driver. */
|
|
|
1271 |
error = PCF_Err_Invalid_File_Format;
|
|
|
1272 |
}
|
|
|
1273 |
|
|
|
1274 |
return error;
|
|
|
1275 |
}
|
|
|
1276 |
|
|
|
1277 |
|
|
|
1278 |
/* END */
|