240 lines
6.0 KiB
C
240 lines
6.0 KiB
C
/* pcf.h
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FreeType font driver for pcf fonts
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Copyright (C) 2000 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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#ifndef __PCF_H__
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#define __PCF_H__
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#include <ft2build.h>
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#include FT_INTERNAL_DRIVER_H
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FT_BEGIN_HEADER
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typedef struct PCF_TableRec_
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{
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FT_ULong type;
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FT_ULong format;
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FT_ULong size;
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FT_ULong offset;
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} PCF_TableRec, *PCF_Table;
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typedef struct PCF_TocRec_
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{
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FT_ULong version;
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FT_ULong count;
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PCF_Table tables;
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} PCF_TocRec, *PCF_Toc;
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typedef struct PCF_ParseProperty_
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{
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FT_Long name;
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FT_Byte isString;
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FT_Long value;
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} PCF_ParsePropertyRec, *PCF_ParseProperty;
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typedef struct PCF_Property_
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{
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FT_String* name;
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FT_Byte isString;
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union
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{
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FT_String* atom;
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FT_Long integer;
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FT_ULong cardinal;
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} value;
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} PCF_PropertyRec, *PCF_Property;
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typedef struct PCF_Compressed_Metric_
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{
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FT_Byte leftSideBearing;
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FT_Byte rightSideBearing;
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FT_Byte characterWidth;
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FT_Byte ascent;
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FT_Byte descent;
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} PCF_Compressed_MetricRec, *PCF_Compressed_Metric;
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typedef struct PCF_Metric_
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{
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FT_Short leftSideBearing;
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FT_Short rightSideBearing;
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FT_Short characterWidth;
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FT_Short ascent;
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FT_Short descent;
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FT_Short attributes;
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FT_ULong bits;
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} PCF_MetricRec, *PCF_Metric;
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typedef struct PCF_AccelRec_
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{
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FT_Byte noOverlap;
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FT_Byte constantMetrics;
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FT_Byte terminalFont;
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FT_Byte constantWidth;
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FT_Byte inkInside;
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FT_Byte inkMetrics;
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FT_Byte drawDirection;
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FT_Long fontAscent;
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FT_Long fontDescent;
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FT_Long maxOverlap;
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PCF_MetricRec minbounds;
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PCF_MetricRec maxbounds;
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PCF_MetricRec ink_minbounds;
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PCF_MetricRec ink_maxbounds;
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} PCF_AccelRec, *PCF_Accel;
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typedef struct PCD_Encoding_
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{
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FT_Long enc;
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FT_Short glyph;
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} PCF_EncodingRec, *PCF_Encoding;
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typedef struct PCF_FaceRec_
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{
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FT_FaceRec root;
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char* charset_encoding;
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char* charset_registry;
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PCF_TocRec toc;
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PCF_AccelRec accel;
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int nprops;
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PCF_Property properties;
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FT_Long nmetrics;
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PCF_Metric metrics;
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FT_Long nencodings;
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PCF_Encoding encodings;
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FT_Short defaultChar;
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FT_ULong bitmapsFormat;
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FT_CharMap charmap_handle;
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FT_CharMapRec charmap; /* a single charmap per face */
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} PCF_FaceRec, *PCF_Face;
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/* XXX hack */
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FT_LOCAL
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FT_Error PCF_Done_Face( PCF_Face face );
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/* macros for pcf font format */
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#define LSBFirst 0
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#define MSBFirst 1
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#define PCF_FILE_VERSION ( ( 'p' << 24 ) | \
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( 'c' << 16 ) | \
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( 'f' << 8 ) | 1 )
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#define PCF_FORMAT_MASK 0xFFFFFF00L
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#define PCF_DEFAULT_FORMAT 0x00000000L
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#define PCF_INKBOUNDS 0x00000200L
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#define PCF_ACCEL_W_INKBOUNDS 0x00000100L
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#define PCF_COMPRESSED_METRICS 0x00000100L
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#define PCF_FORMAT_MATCH( a, b ) \
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( ( (a) & PCF_FORMAT_MASK ) == ( (b) & PCF_FORMAT_MASK ) )
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#define PCF_GLYPH_PAD_MASK ( 3 << 0 )
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#define PCF_BYTE_MASK ( 1 << 2 )
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#define PCF_BIT_MASK ( 1 << 3 )
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#define PCF_SCAN_UNIT_MASK ( 3 << 4 )
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#define PCF_BYTE_ORDER( f ) \
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( ( (f) & PCF_BYTE_MASK ) ? MSBFirst : LSBFirst )
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#define PCF_BIT_ORDER( f ) \
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( ( (f) & PCF_BIT_MASK ) ? MSBFirst : LSBFirst )
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#define PCF_GLYPH_PAD_INDEX( f ) \
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( (f) & PCF_GLYPH_PAD_MASK )
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#define PCF_GLYPH_PAD( f ) \
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( 1 << PCF_GLYPH_PAD_INDEX( f ) )
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#define PCF_SCAN_UNIT_INDEX( f ) \
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( ( (f) & PCF_SCAN_UNIT_MASK ) >> 4 )
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#define PCF_SCAN_UNIT( f ) \
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( 1 << PCF_SCAN_UNIT_INDEX( f ) )
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#define PCF_FORMAT_BITS( f ) \
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( (f) & ( PCF_GLYPH_PAD_MASK | \
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PCF_BYTE_MASK | \
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PCF_BIT_MASK | \
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PCF_SCAN_UNIT_MASK ) )
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#define PCF_SIZE_TO_INDEX( s ) ( (s) == 4 ? 2 : (s) == 2 ? 1 : 0 )
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#define PCF_INDEX_TO_SIZE( b ) ( 1 << b )
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#define PCF_FORMAT( bit, byte, glyph, scan ) \
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( ( PCF_SIZE_TO_INDEX( scan ) << 4 ) | \
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( ( (bit) == MSBFirst ? 1 : 0 ) << 3 ) | \
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( ( (byte) == MSBFirst ? 1 : 0 ) << 2 ) | \
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( PCF_SIZE_TO_INDEX( glyph ) << 0 ) )
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#define PCF_PROPERTIES ( 1 << 0 )
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#define PCF_ACCELERATORS ( 1 << 1 )
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#define PCF_METRICS ( 1 << 2 )
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#define PCF_BITMAPS ( 1 << 3 )
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#define PCF_INK_METRICS ( 1 << 4 )
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#define PCF_BDF_ENCODINGS ( 1 << 5 )
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#define PCF_SWIDTHS ( 1 << 6 )
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#define PCF_GLYPH_NAMES ( 1 << 7 )
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#define PCF_BDF_ACCELERATORS ( 1 << 8 )
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#define GLYPHPADOPTIONS 4 /* I'm not sure about this */
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FT_LOCAL
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FT_Error pcf_load_font( FT_Stream,
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PCF_Face );
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FT_END_HEADER
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#endif /* __PCF_H__ */
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/* END */
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