ref: f3dad68be8ab7116b496984fb00324baa1e65d10
dir: /src/pcf/pcfread.c/
/* pcfread.c
FreeType font driver for pcf fonts
Copyright 2000 by
Francesco Zappa Nardelli
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#include <ft2build.h>
#include FT_ERRORS_H
#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_STREAM_H
#include FT_INTERNAL_OBJECTS_H
#include FT_SOURCE_FILE(pcf,pcf.h)
#include FT_SOURCE_FILE(pcf,pcfdriver.h)
#include <string.h> /* strlen(), strcpy() */
/*************************************************************************/
/* */
/* The macro FT_COMPONENT is used in trace mode. It is an implicit */
/* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */
/* messages during execution. */
/* */
#undef FT_COMPONENT
#define FT_COMPONENT trace_pcfread
#if defined( FT_DEBUG_LEVEL_TRACE )
static char* tableNames[] =
{
"prop", "accl", "mtrcs", "bmps", "imtrcs",
"enc", "swidth", "names", "accel"
};
#endif
static
const FT_Frame_Field pcf_toc_header[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE PCF_TocRec
FT_FRAME_START( 8 ),
FT_FRAME_ULONG_LE( version ),
FT_FRAME_ULONG_LE( count ),
FT_FRAME_END
};
static
const FT_Frame_Field pcf_table_header[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE PCF_TableRec
FT_FRAME_START( 16 ),
FT_FRAME_ULONG_LE( type ),
FT_FRAME_ULONG_LE( format ),
FT_FRAME_ULONG_LE( size ),
FT_FRAME_ULONG_LE( offset ),
FT_FRAME_END
};
static
FT_Error pcf_read_TOC( FT_Stream stream,
PCF_Face face )
{
FT_Error error;
PCF_Toc toc = &face->toc;
PCF_Table tables;
FT_Memory memory = FT_FACE(face)->memory;
unsigned int i;
if ( FILE_Seek ( 0 ) ||
READ_Fields ( pcf_toc_header, toc ) )
return FT_Err_Cannot_Open_Resource;
if ( toc->version != PCF_FILE_VERSION )
return FT_Err_Invalid_File_Format;
if ( ALLOC( face->toc.tables, toc->count * sizeof ( PCF_TableRec ) ) )
return FT_Err_Out_Of_Memory;
tables = face->toc.tables;
for ( i = 0; i < toc->count; i++ )
{
if ( READ_Fields( pcf_table_header, tables ) )
goto Exit;
tables++;
}
#if defined( FT_DEBUG_LEVEL_TRACE )
{
unsigned int i,j;
char* name = "?";
FT_TRACE4(( "Tables count: %ld\n", face->toc.count ));
tables = face->toc.tables;
for ( i = 0; i < toc->count; i++ )
{
for( j = 0; j < sizeof ( tableNames ) / sizeof ( tableNames[0] ); j++ )
if ( tables[i].type == (unsigned int)( 1 << j ) )
name=tableNames[j];
FT_TRACE4(( "Table %d: type=%-6s format=0x%04lX "
"size=0x%06lX (%8ld) offset=0x%04lX\n",
i, name,
tables[i].format,
tables[i].size, tables[i].size,
tables[i].offset ));
}
}
#endif
return FT_Err_Ok;
Exit:
FREE( face->toc.tables );
return error;
}
static
const FT_Frame_Field pcf_metric_header[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE PCF_MetricRec
FT_FRAME_START( 12 ),
FT_FRAME_SHORT_LE( leftSideBearing ),
FT_FRAME_SHORT_LE( rightSideBearing ),
FT_FRAME_SHORT_LE( characterWidth ),
FT_FRAME_SHORT_LE( ascent ),
FT_FRAME_SHORT_LE( descent ),
FT_FRAME_SHORT_LE( attributes ),
FT_FRAME_END
};
static
const FT_Frame_Field pcf_metric_msb_header[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE PCF_MetricRec
FT_FRAME_START( 12 ),
FT_FRAME_SHORT( leftSideBearing ),
FT_FRAME_SHORT( rightSideBearing ),
FT_FRAME_SHORT( characterWidth ),
FT_FRAME_SHORT( ascent ),
FT_FRAME_SHORT( descent ),
FT_FRAME_SHORT( attributes ),
FT_FRAME_END
};
static
const FT_Frame_Field pcf_compressed_metric_header[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE PCF_Compressed_MetricRec
FT_FRAME_START( 5 ),
FT_FRAME_BYTE( leftSideBearing ),
FT_FRAME_BYTE( rightSideBearing ),
FT_FRAME_BYTE( characterWidth ),
FT_FRAME_BYTE( ascent ),
FT_FRAME_BYTE( descent ),
FT_FRAME_END
};
static
FT_Error pcf_parse_metric( FT_Stream stream,
const FT_Frame_Field* header,
PCF_Metric metric )
{
FT_Error error = FT_Err_Ok;
if ( READ_Fields( header, metric ) )
return error;
return FT_Err_Ok;
}
static
FT_Error pcf_parse_compressed_metric( FT_Stream stream,
PCF_Metric metric )
{
PCF_Compressed_MetricRec compr_metric;
FT_Error error = FT_Err_Ok;
if ( READ_Fields( pcf_compressed_metric_header, &compr_metric ) )
return error;
metric->leftSideBearing = (FT_Short)compr_metric.leftSideBearing - 0x80;
metric->rightSideBearing = (FT_Short)compr_metric.rightSideBearing - 0x80;
metric->characterWidth = (FT_Short)compr_metric.characterWidth - 0x80;
metric->ascent = (FT_Short)compr_metric.ascent - 0x80;
metric->descent = (FT_Short)compr_metric.descent - 0x80;
metric->attributes = 0;
return FT_Err_Ok;
}
static
FT_Error pcf_get_metric( FT_Stream stream,
FT_ULong format,
PCF_Metric metric )
{
FT_Error error = FT_Err_Ok;
if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
{
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
error = pcf_parse_metric( stream, pcf_metric_msb_header, metric );
else
error = pcf_parse_metric( stream, pcf_metric_header, metric );
}
else
error = pcf_parse_compressed_metric( stream, metric );
return error;
}
static
FT_Error pcfSeekToType( FT_Stream stream,
PCF_Table tables,
int ntables,
FT_ULong type,
FT_ULong* formatp,
FT_ULong* sizep )
{
FT_Error error;
int i;
for ( i = 0; i < ntables; i++ )
if ( tables[i].type == type )
{
if ( stream->pos > tables[i].offset )
return FT_Err_Invalid_Stream_Skip;
if ( FILE_Skip( tables[i].offset - stream->pos ) )
return FT_Err_Invalid_Stream_Skip;
*sizep = tables[i].size; /* unused - to be removed */
*formatp = tables[i].format;
return FT_Err_Ok;
}
return FT_Err_Invalid_File_Format;
}
static
FT_Bool pcfHasType( PCF_Table tables,
int ntables,
FT_ULong type )
{
int i;
for ( i = 0; i < ntables; i++ )
if ( tables[i].type == type )
return TRUE;
return FALSE;
}
static
const FT_Frame_Field pcf_property_header[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE PCF_ParsePropertyRec
FT_FRAME_START( 9 ),
FT_FRAME_LONG_LE( name ),
FT_FRAME_BYTE ( isString ),
FT_FRAME_LONG_LE( value ),
FT_FRAME_END
};
static
const FT_Frame_Field pcf_property_msb_header[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE PCF_ParsePropertyRec
FT_FRAME_START( 9 ),
FT_FRAME_LONG( name ),
FT_FRAME_BYTE( isString ),
FT_FRAME_LONG( value ),
FT_FRAME_END
};
static
PCF_Property find_property( PCF_Face face,
const FT_String* prop )
{
PCF_Property properties = face->properties;
FT_Bool found = 0;
int i;
for ( i = 0 ; i < face->nprops && !found; i++ )
{
if ( !strcmp( properties[i].name, prop ) )
found = 1;
}
if ( found )
return properties + i - 1;
else
return NULL;
}
static
FT_Error pcf_get_properties( FT_Stream stream,
PCF_Face face )
{
PCF_ParseProperty props = 0;
PCF_Property properties = 0;
int nprops, i;
FT_ULong format, size;
FT_Error error;
FT_Memory memory = FT_FACE(face)->memory;
FT_ULong string_size;
FT_String* strings = 0;
error = pcfSeekToType( stream,
face->toc.tables,
face->toc.count,
PCF_PROPERTIES,
&format,
&size );
if ( error )
goto Bail;
if ( READ_ULongLE( format ) )
goto Bail;
FT_TRACE4(( "get_prop: format = %ld\n", format ));
if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
goto Bail;
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
(void)READ_ULong( nprops );
else
(void)READ_ULongLE( nprops );
if ( error )
goto Bail;
FT_TRACE4(( "get_prop: nprop = %d\n", nprops ));
if ( ALLOC( props, nprops * sizeof ( PCF_ParsePropertyRec ) ) )
goto Bail;
for ( i = 0; i < nprops; i++ )
{
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
{
if ( READ_Fields( pcf_property_msb_header, props + i ) )
goto Bail;
}
else
{
if ( READ_Fields( pcf_property_header, props + i ) )
goto Bail;
}
}
/* pad the property array */
/* */
/* clever here - nprops is the same as the number of odd-units read, */
/* as only isStringProp are odd length (Keith Packard) */
/* */
if ( nprops & 3 )
{
i = 4 - ( nprops & 3 );
FT_Skip_Stream( stream, i );
}
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
(void)READ_ULong( string_size );
else
(void)READ_ULongLE( string_size );
if ( error )
goto Bail;
FT_TRACE4(( "get_prop: string_size = %ld\n", string_size ));
if ( ALLOC( strings, string_size * sizeof ( char ) ) )
goto Bail;
error = FT_Read_Stream( stream, (FT_Byte*)strings, string_size );
if ( error )
goto Bail;
if ( ALLOC( properties, nprops * sizeof ( PCF_PropertyRec ) ) )
goto Bail;
for ( i = 0; i < nprops; i++ )
{
/* XXX: make atom */
if ( ALLOC( properties[i].name,
( strlen( strings + props[i].name ) + 1 ) *
sizeof ( char ) ) )
goto Bail;
strcpy( properties[i].name,strings + props[i].name );
properties[i].isString = props[i].isString;
if ( props[i].isString )
{
if ( ALLOC( properties[i].value.atom,
( strlen( strings + props[i].value ) + 1 ) *
sizeof ( char ) ) )
goto Bail;
strcpy( properties[i].value.atom, strings + props[i].value );
}
else
properties[i].value.integer = props[i].value;
}
face->properties = properties;
face->nprops = nprops;
FREE( props );
FREE( strings );
return FT_Err_Ok;
Bail:
FREE( props );
FREE( strings );
return error;
}
static
FT_Error pcf_get_metrics( FT_Stream stream,
PCF_Face face )
{
FT_Error error = FT_Err_Ok;
FT_Memory memory = FT_FACE(face)->memory;
FT_ULong format = 0;
FT_ULong size = 0;
PCF_Metric metrics = 0;
int i;
int nmetrics = -1;
error = pcfSeekToType( stream,
face->toc.tables,
face->toc.count,
PCF_METRICS,
&format,
&size );
if ( error )
return error;
error = READ_ULongLE( format );
if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) &&
!PCF_FORMAT_MATCH( format, PCF_COMPRESSED_METRICS ) )
return FT_Err_Invalid_File_Format;
if ( PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
{
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
(void)READ_ULong( nmetrics );
else
(void)READ_ULongLE( nmetrics );
}
else
{
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
(void)READ_UShort( nmetrics );
else
(void)READ_UShortLE( nmetrics );
}
if ( error || nmetrics == -1 )
return FT_Err_Invalid_File_Format;
face->nmetrics = nmetrics;
if ( ALLOC( face->metrics, nmetrics * sizeof ( PCF_MetricRec ) ) )
return FT_Err_Out_Of_Memory;
metrics = face->metrics;
for ( i = 0; i < nmetrics; i++ )
{
pcf_get_metric( stream, format, metrics + i );
metrics[i].bits = 0;
FT_TRACE4(( "%d : width=%d, "
"lsb=%d, rsb=%d, ascent=%d, descent=%d, swidth=%d\n",
i,
( metrics + i )->characterWidth,
( metrics + i )->leftSideBearing,
( metrics + i )->rightSideBearing,
( metrics + i )->ascent,
( metrics + i )->descent,
( metrics + i )->attributes ));
if ( error )
break;
}
if ( error )
FREE( face->metrics );
return error;
}
static
FT_Error pcf_get_bitmaps( FT_Stream stream,
PCF_Face face )
{
FT_Error error = FT_Err_Ok;
FT_Memory memory = FT_FACE(face)->memory;
FT_Long* offsets;
FT_Long bitmapSizes[GLYPHPADOPTIONS];
FT_ULong format, size;
int nbitmaps, i, sizebitmaps;
char* bitmaps;
error = pcfSeekToType( stream,
face->toc.tables,
face->toc.count,
PCF_BITMAPS,
&format,
&size );
if ( error )
return error;
error = FT_Access_Frame( stream, 8 );
if ( error )
return error;
format = GET_ULongLE();
if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
return FT_Err_Invalid_File_Format;
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
nbitmaps = GET_ULong();
else
nbitmaps = GET_ULongLE();
FT_Forget_Frame( stream );
if ( nbitmaps != face->nmetrics )
return FT_Err_Invalid_File_Format;
if ( ALLOC( offsets, nbitmaps * sizeof ( FT_ULong ) ) )
return error;
if ( error )
goto Bail;
for ( i = 0; i < nbitmaps; i++ )
{
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
(void)READ_Long( offsets[i] );
else
(void)READ_LongLE( offsets[i] );
FT_TRACE4(( "bitmap %d is at offset %ld\n", i, offsets[i] ));
}
if ( error )
goto Bail;
if ( error )
goto Bail;
for ( i = 0; i < GLYPHPADOPTIONS; i++ )
{
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
(void)READ_Long( bitmapSizes[i] );
else
(void)READ_LongLE( bitmapSizes[i] );
if ( error )
goto Bail;
sizebitmaps = bitmapSizes[PCF_GLYPH_PAD_INDEX( format )];
FT_TRACE4(( "padding %d implies a size of %ld\n", i, bitmapSizes[i] ));
}
FT_TRACE4(( " %d bitmaps, padding index %ld\n",
nbitmaps,
PCF_GLYPH_PAD_INDEX( format ) ));
FT_TRACE4(( "bitmap size = %d\n", sizebitmaps ));
for ( i = 0; i < nbitmaps; i++ )
face->metrics[i].bits = stream->pos + offsets[i];
face->bitmapsFormat = format;
FREE ( offsets );
return error;
Bail:
FREE ( offsets );
FREE ( bitmaps );
return error;
}
static
FT_Error pcf_get_encodings( FT_Stream stream,
PCF_Face face )
{
FT_Error error = FT_Err_Ok;
FT_Memory memory = FT_FACE(face)->memory;
FT_ULong format, size;
int firstCol, lastCol;
int firstRow, lastRow;
int nencoding, encodingOffset;
int i, j;
PCF_Encoding tmpEncoding, encoding = 0;
error = pcfSeekToType( stream,
face->toc.tables,
face->toc.count,
PCF_BDF_ENCODINGS,
&format,
&size );
if ( error )
return error;
error = FT_Access_Frame( stream, 14 );
if ( error )
return error;
format = GET_ULongLE();
if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) )
return FT_Err_Invalid_File_Format;
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
{
firstCol = GET_Short();
lastCol = GET_Short();
firstRow = GET_Short();
lastRow = GET_Short();
face->defaultChar = GET_Short();
}
else
{
firstCol = GET_ShortLE();
lastCol = GET_ShortLE();
firstRow = GET_ShortLE();
lastRow = GET_ShortLE();
face->defaultChar = GET_ShortLE();
}
FT_Forget_Frame( stream );
FT_TRACE4(( "enc: firstCol %d, lastCol %d, firstRow %d, lastRow %d\n",
firstCol, lastCol, firstRow, lastRow ));
nencoding = ( lastCol - firstCol + 1 ) * ( lastRow - firstRow + 1 );
if ( ALLOC( tmpEncoding, nencoding * sizeof ( PCF_EncodingRec ) ) )
return FT_Err_Out_Of_Memory;
error = FT_Access_Frame( stream, 2 * nencoding );
if ( error )
goto Bail;
for ( i = 0, j = 0 ; i < nencoding; i++ )
{
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
encodingOffset = GET_Short();
else
encodingOffset = GET_ShortLE();
if ( encodingOffset != 0xFFFF )
{
tmpEncoding[j].enc = ( ( ( i / ( lastCol - firstCol + 1 ) ) +
firstRow ) * 256 ) +
( ( i % ( lastCol - firstCol + 1 ) ) +
firstCol );
tmpEncoding[j].glyph = encodingOffset;
j++;
}
FT_TRACE4(( "enc n. %d ; Uni %ld ; Glyph %d\n",
i, tmpEncoding[j - 1].enc, encodingOffset ));
}
FT_Forget_Frame( stream );
if ( ALLOC( encoding, (--j) * sizeof ( PCF_EncodingRec ) ) )
goto Bail;
for ( i = 0; i < j; i++ )
{
encoding[i].enc = tmpEncoding[i].enc;
encoding[i].glyph = tmpEncoding[i].glyph;
}
face->nencodings = j;
face->encodings = encoding;
FREE( tmpEncoding );
return error;
Bail:
FREE( encoding );
FREE( tmpEncoding );
return error;
}
static
const FT_Frame_Field pcf_accel_header[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE PCF_AccelRec
FT_FRAME_START( 20 ),
FT_FRAME_BYTE ( noOverlap ),
FT_FRAME_BYTE ( constantMetrics ),
FT_FRAME_BYTE ( terminalFont ),
FT_FRAME_BYTE ( constantWidth ),
FT_FRAME_BYTE ( inkInside ),
FT_FRAME_BYTE ( inkMetrics ),
FT_FRAME_BYTE ( drawDirection ),
FT_FRAME_SKIP_BYTES( 1 ),
FT_FRAME_LONG_LE ( fontAscent ),
FT_FRAME_LONG_LE ( fontDescent ),
FT_FRAME_LONG_LE ( maxOverlap ),
FT_FRAME_END
};
static
const FT_Frame_Field pcf_accel_msb_header[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE PCF_AccelRec
FT_FRAME_START( 20 ),
FT_FRAME_BYTE ( noOverlap ),
FT_FRAME_BYTE ( constantMetrics ),
FT_FRAME_BYTE ( terminalFont ),
FT_FRAME_BYTE ( constantWidth ),
FT_FRAME_BYTE ( inkInside ),
FT_FRAME_BYTE ( inkMetrics ),
FT_FRAME_BYTE ( drawDirection ),
FT_FRAME_SKIP_BYTES( 1 ),
FT_FRAME_LONG ( fontAscent ),
FT_FRAME_LONG ( fontDescent ),
FT_FRAME_LONG ( maxOverlap ),
FT_FRAME_END
};
static
FT_Error pcf_get_accel( FT_Stream stream,
PCF_Face face,
FT_ULong type )
{
FT_ULong format, size;
FT_Error error = FT_Err_Ok;
PCF_Accel accel = &face->accel;
error = pcfSeekToType( stream,
face->toc.tables,
face->toc.count,
type,
&format,
&size );
if ( error )
goto Bail;
error = READ_ULongLE( format );
if ( !PCF_FORMAT_MATCH( format, PCF_DEFAULT_FORMAT ) &&
!PCF_FORMAT_MATCH( format, PCF_ACCEL_W_INKBOUNDS ) )
goto Bail;
if ( PCF_BYTE_ORDER( format ) == MSBFirst )
{
if ( READ_Fields( pcf_accel_msb_header, accel ) )
goto Bail;
}
else
{
if ( READ_Fields( pcf_accel_header, accel ) )
goto Bail;
}
error = pcf_get_metric( stream, format, &(accel->minbounds) );
if ( error )
goto Bail;
error = pcf_get_metric( stream, format, &(accel->maxbounds) );
if ( error )
goto Bail;
if ( PCF_FORMAT_MATCH( format, PCF_ACCEL_W_INKBOUNDS ) )
{
error = pcf_get_metric( stream, format, &(accel->ink_minbounds) );
if ( error )
goto Bail;
error = pcf_get_metric( stream, format, &(accel->ink_maxbounds) );
if ( error )
goto Bail;
}
else
{
accel->ink_minbounds = accel->minbounds; /* I'm not sure about this */
accel->ink_maxbounds = accel->maxbounds;
}
return error;
Bail:
return error;
}
FT_Error pcf_load_font( FT_Stream stream,
PCF_Face face )
{
FT_Error error = FT_Err_Ok;
FT_Memory memory = FT_FACE(face)->memory;
FT_Bool hasBDFAccelerators;
error = pcf_read_TOC( stream, face );
if ( error )
return error;
error = pcf_get_properties( stream, face );
if ( error )
return error;;
/* Use the old accelerators if no BDF accelerators are in the file. */
hasBDFAccelerators = pcfHasType( face->toc.tables,
face->toc.count,
PCF_BDF_ACCELERATORS );
if ( !hasBDFAccelerators )
{
error = pcf_get_accel( stream, face, PCF_ACCELERATORS );
if ( error )
goto Bail;
}
/* metrics */
error = pcf_get_metrics( stream, face );
if ( error )
goto Bail;
/* bitmaps */
error = pcf_get_bitmaps( stream, face );
if ( error )
goto Bail;
/* encodings */
error = pcf_get_encodings( stream, face );
if ( error )
goto Bail;
/* BDF style accelerators (i.e. bounds based on encoded glyphs) */
if ( hasBDFAccelerators )
{
error = pcf_get_accel( stream, face, PCF_BDF_ACCELERATORS );
if ( error )
goto Bail;
}
/* XXX: TO DO: inkmetrics and glyph_names are missing */
/* now construct the face object */
{
FT_Face root = FT_FACE( face );
PCF_Property prop;
root->num_faces = 1;
root->face_index = 0;
root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
FT_FACE_FLAG_HORIZONTAL |
FT_FACE_FLAG_FAST_GLYPHS;
if ( face->accel.constantWidth )
root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
root->style_flags = 0;
prop = find_property( face, "SLANT" );
if ( prop != NULL )
if ( prop->isString )
if ( ( *(prop->value.atom) == 'O' ) ||
( *(prop->value.atom) == 'I' ) )
root->style_flags |= FT_STYLE_FLAG_ITALIC;
prop = find_property( face, "WEIGHT_NAME" );
if ( prop != NULL )
if ( prop->isString )
if ( *(prop->value.atom) == 'B' )
root->style_flags |= FT_STYLE_FLAG_BOLD;
root->style_name = (char *)"Regular";
if ( root->style_flags & FT_STYLE_FLAG_BOLD ) {
if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
root->style_name = (char *)"Bold Italic";
else
root->style_name = (char *)"Bold";
}
else if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
root->style_name = (char *)"Italic";
prop = find_property( face, "FAMILY_NAME" );
if ( prop != NULL )
{
if ( prop->isString )
{
int l = strlen( prop->value.atom ) + 1;
if ( ALLOC( root->family_name, l * sizeof ( char ) ) )
goto Bail;
strcpy( root->family_name, prop->value.atom );
}
}
else
root->family_name = 0;
root->num_glyphs = face->nmetrics;
root->num_fixed_sizes = 1;
if ( ALLOC_ARRAY( root->available_sizes, 1, FT_Bitmap_Size ) )
goto Bail;
prop = find_property( face, "PIXEL_SIZE" );
if ( prop != NULL )
{
PCF_Property xres = 0, yres = 0;
xres = find_property( face, "RESOLUTION_X" );
yres = find_property( face, "RESOLUTION_Y" );
if ( ( xres != NULL ) && ( yres != NULL ) )
{
root->available_sizes->width = (FT_Short)
(prop->value.integer * 75 / xres->value.integer);
root->available_sizes->height = (FT_Short)
(prop->value.integer * 75 / yres->value.integer);
}
}
else
{ /* XXX */
#if 0
printf( "PCF Warning: Pixel Size undefined, assuming 12\n");
#endif
root->available_sizes->width = 12;
root->available_sizes->height = 12;
}
/* XXX: charmaps */
root->charmaps = &face->charmap_handle;
root->num_charmaps = 1;
{
PCF_Property charset_registry = 0, charset_encoding = 0;
charset_registry = find_property( face, "CHARSET_REGISTRY" );
charset_encoding = find_property( face, "CHARSET_ENCODING" );
if ( ( charset_registry != NULL ) &&
( charset_encoding != NULL ) )
{
if ( ( charset_registry->isString ) &&
( charset_encoding->isString ) )
{
if ( ALLOC( face->charset_encoding,
( strlen( charset_encoding->value.atom ) + 1 ) *
sizeof ( char ) ) )
goto Bail;
if ( ALLOC( face->charset_registry,
( strlen( charset_registry->value.atom ) + 1 ) *
sizeof ( char ) ) )
goto Bail;
strcpy( face->charset_registry, charset_registry->value.atom );
strcpy( face->charset_encoding, charset_encoding->value.atom );
#if 0
if ( !strcmp( charset_registry, "ISO10646" ) )
{
face->charmap.encoding = ft_encoding_unicode;
face->charmap.platform_id = 3;
face->charmap.encoding_id = 1;
face->charmap.face = root;
face->charmap_handle
return FT_Err_Ok;
}
#endif
}
}
}
face->charmap.encoding = ft_encoding_none;
face->charmap.platform_id = 0;
face->charmap.encoding_id = 0;
face->charmap.face = root;
face->charmap_handle = &face->charmap;
root->charmap = face->charmap_handle;
}
return FT_Err_Ok;
Bail:
PCF_Done_Face( face );
return FT_Err_Invalid_File_Format;
}
/* END */