mirrors/freetype
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Initial revision

Browse Source
This commit is contained in:
Werner Lemberg 2001-01-01 17:24:31 +00:00
parent 6b76663625
commit f28b7bfaea
10 changed files with 2203 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
src/pcf/module.mk Normal file
View File

@ -0,0 +1,32 @@
#
# FreeType 2 PCF module definition
#
# 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.
make_module_list: add_pcf_driver
add_pcf_driver:
$(OPEN_DRIVER)pcf_driver_class$(CLOSE_DRIVER)
$(ECHO_DRIVER)pcf $(ECHO_DRIVER_DESC)pcf bitmap fonts$(ECHO_DRIVER_DONE)
# EOF

36
src/pcf/pcf.c Normal file
View File

@ -0,0 +1,36 @@
/* pcf.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.
*/
#define FT_MAKE_OPTION_SINGLE_OBJECT
#include <ft2build.h>
#include FT_SOURCE_FILE(pcf,pcfutil.c)
#include FT_SOURCE_FILE(pcf,pcfread.c)
#include FT_SOURCE_FILE(pcf,pcfdriver.c)
/* END */

239
src/pcf/pcf.h Normal file
View File

@ -0,0 +1,239 @@
/* pcf.h
FreeType font driver for pcf fonts
Copyright (C) 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.
*/
#ifndef __PCF_H__
#define __PCF_H__
#include <ft2build.h>
#include FT_INTERNAL_DRIVER_H
FT_BEGIN_HEADER
typedef struct PCF_TableRec_
{
FT_ULong type;
FT_ULong format;
FT_ULong size;
FT_ULong offset;
} PCF_TableRec, *PCF_Table;
typedef struct PCF_TocRec_
{
FT_ULong version;
FT_ULong count;
PCF_Table tables;
} PCF_TocRec, *PCF_Toc;
typedef struct PCF_ParseProperty_
{
FT_Long name;
FT_Byte isString;
FT_Long value;
} PCF_ParsePropertyRec, *PCF_ParseProperty;
typedef struct PCF_Property_
{
FT_String* name;
FT_Byte isString;
union
{
FT_String* atom;
FT_Long integer;
FT_ULong cardinal;
} value;
} PCF_PropertyRec, *PCF_Property;
typedef struct PCF_Compressed_Metric_
{
FT_Byte leftSideBearing;
FT_Byte rightSideBearing;
FT_Byte characterWidth;
FT_Byte ascent;
FT_Byte descent;
} PCF_Compressed_MetricRec, *PCF_Compressed_Metric;
typedef struct PCF_Metric_
{
FT_Short leftSideBearing;
FT_Short rightSideBearing;
FT_Short characterWidth;
FT_Short ascent;
FT_Short descent;
FT_Short attributes;
FT_ULong bits;
} PCF_MetricRec, *PCF_Metric;
typedef struct PCF_AccelRec_
{
FT_Byte noOverlap;
FT_Byte constantMetrics;
FT_Byte terminalFont;
FT_Byte constantWidth;
FT_Byte inkInside;
FT_Byte inkMetrics;
FT_Byte drawDirection;
FT_Long fontAscent;
FT_Long fontDescent;
FT_Long maxOverlap;
PCF_MetricRec minbounds;
PCF_MetricRec maxbounds;
PCF_MetricRec ink_minbounds;
PCF_MetricRec ink_maxbounds;
} PCF_AccelRec, *PCF_Accel;
typedef struct PCD_Encoding_
{
FT_Long enc;
FT_Short glyph;
} PCF_EncodingRec, *PCF_Encoding;
typedef struct PCF_FaceRec_
{
FT_FaceRec root;
char* charset_encoding;
char* charset_registry;
PCF_TocRec toc;
PCF_AccelRec accel;
int nprops;
PCF_Property properties;
FT_Long nmetrics;
PCF_Metric metrics;
FT_Long nencodings;
PCF_Encoding encodings;
FT_Short defaultChar;
FT_ULong bitmapsFormat;
FT_CharMap charmap_handle;
FT_CharMapRec charmap; /* a single charmap per face */
} PCF_FaceRec, *PCF_Face;
/* XXX hack */
static
FT_Error PCF_Done_Face( PCF_Face face );
/* macros for pcf font format */
#define LSBFirst 0
#define MSBFirst 1
#define PCF_FILE_VERSION ( ( 'p' << 24 ) | \
( 'c' << 16 ) | \
( 'f' << 8 ) | 1 )
#define PCF_FORMAT_MASK 0xFFFFFF00L
#define PCF_DEFAULT_FORMAT 0x00000000L
#define PCF_INKBOUNDS 0x00000200L
#define PCF_ACCEL_W_INKBOUNDS 0x00000100L
#define PCF_COMPRESSED_METRICS 0x00000100L
#define PCF_FORMAT_MATCH( a, b ) \
( ( (a) & PCF_FORMAT_MASK ) == ( (b) & PCF_FORMAT_MASK ) )
#define PCF_GLYPH_PAD_MASK ( 3 << 0 )
#define PCF_BYTE_MASK ( 1 << 2 )
#define PCF_BIT_MASK ( 1 << 3 )
#define PCF_SCAN_UNIT_MASK ( 3 << 4 )
#define PCF_BYTE_ORDER( f ) \
( ( (f) & PCF_BYTE_MASK ) ? MSBFirst : LSBFirst )
#define PCF_BIT_ORDER( f ) \
( ( (f) & PCF_BIT_MASK ) ? MSBFirst : LSBFirst )
#define PCF_GLYPH_PAD_INDEX( f ) \
( (f) & PCF_GLYPH_PAD_MASK )
#define PCF_GLYPH_PAD( f ) \
( 1 << PCF_GLYPH_PAD_INDEX( f ) )
#define PCF_SCAN_UNIT_INDEX( f ) \
( ( (f) & PCF_SCAN_UNIT_MASK ) >> 4 )
#define PCF_SCAN_UNIT( f ) \
( 1 << PCF_SCAN_UNIT_INDEX( f ) )
#define PCF_FORMAT_BITS( f ) \
( (f) & ( PCF_GLYPH_PAD_MASK | \
PCF_BYTE_MASK | \
PCF_BIT_MASK | \
PCF_SCAN_UNIT_MASK ) )
#define PCF_SIZE_TO_INDEX( s ) ( (s) == 4 ? 2 : (s) == 2 ? 1 : 0 )
#define PCF_INDEX_TO_SIZE( b ) ( 1 << b )
#define PCF_FORMAT( bit, byte, glyph, scan ) \
( ( PCF_SIZE_TO_INDEX( scan ) << 4 ) | \
( ( (bit) == MSBFirst ? 1 : 0 ) << 3 ) | \
( ( (byte) == MSBFirst ? 1 : 0 ) << 2 ) | \
( PCF_SIZE_TO_INDEX( glyph ) << 0 ) )
#define PCF_PROPERTIES ( 1 << 0 )
#define PCF_ACCELERATORS ( 1 << 1 )
#define PCF_METRICS ( 1 << 2 )
#define PCF_BITMAPS ( 1 << 3 )
#define PCF_INK_METRICS ( 1 << 4 )
#define PCF_BDF_ENCODINGS ( 1 << 5 )
#define PCF_SWIDTHS ( 1 << 6 )
#define PCF_GLYPH_NAMES ( 1 << 7 )
#define PCF_BDF_ACCELERATORS ( 1 << 8 )
#define GLYPHPADOPTIONS 4 /* I'm not sure about this */
static
FT_Error pcf_load_font( FT_Stream,
PCF_Face );
FT_END_HEADER
#endif /* __PCF_H__ */
/* END */

343
src/pcf/pcfdriver.c Normal file
View File

@ -0,0 +1,343 @@
/* pcfdriver.c
FreeType font driver for pcf files
Copyright (C) 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 FT_SOURCE_FILE(pcf,pcfutil.h)
/*************************************************************************/
/* */
/* 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_pcfdriver
static
FT_Error PCF_Done_Face( PCF_Face face )
{
FT_Memory memory = FT_FACE_MEMORY( face );
PCF_Property tmp = face->properties;
int i;
FREE( face->encodings );
FREE( face->metrics );
for ( i = 0; i < face->nprops; i++ )
{
FREE( tmp->name );
if ( tmp->isString )
FREE( tmp->value );
}
FREE( face->properties );
FT_TRACE4(( "DONE_FACE!!!\n" ));
return FT_Err_Ok;
}
static
FT_Error PCF_Init_Face( FT_Stream stream,
PCF_Face face,
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
{
FT_Error error = FT_Err_Ok;
FT_UNUSED( num_params );
FT_UNUSED( params );
FT_UNUSED( face_index );
error = pcf_load_font( stream, face );
if ( error )
goto Fail;
return FT_Err_Ok;
Fail:
FT_TRACE2(( "[not a valid PCF file]\n" ));
PCF_Done_Face( face );
return FT_Err_Unknown_File_Format; /* error */
}
static
FT_Error PCF_Set_Pixel_Size( FT_Size size )
{
PCF_Face face = (PCF_Face)FT_SIZE_FACE( size );
FT_TRACE4(( "rec %d - pres %d\n", size->metrics.y_ppem,
face->root.available_sizes->height ));
if ( size->metrics.y_ppem == face->root.available_sizes->height )
{
size->metrics.ascender = face->accel.fontAscent << 6;
size->metrics.descender = face->accel.fontDescent * (-64);
#if 0
size->metrics.height = face->accel.maxbounds.ascent << 6;
#endif
size->metrics.height = size->metrics.ascender -
size->metrics.descender;
return FT_Err_Ok;
}
else
{
FT_TRACE4(( "size WRONG\n" ));
return FT_Err_Invalid_Pixel_Size;
}
}
static
FT_Error PCF_Load_Glyph( FT_GlyphSlot slot,
FT_Size size,
FT_UInt glyph_index,
FT_Int load_flags )
{
PCF_Face face = (PCF_Face)FT_SIZE_FACE( size );
FT_Error error = FT_Err_Ok;
FT_Memory memory = FT_FACE(face)->memory;
FT_Bitmap* bitmap = &slot->bitmap;
PCF_Metric metric;
int bytes;
FT_Stream stream = face->root.stream;
FT_UNUSED( load_flags );
FT_TRACE4(( "load_glyph %d ---", glyph_index ));
if ( !face )
{
error = FT_Err_Invalid_Argument;
goto Exit;
}
metric = face->metrics + glyph_index;
bitmap->rows = metric->ascent + metric->descent;
bitmap->width = metric->characterWidth;
bitmap->num_grays = 1;
bitmap->pixel_mode = ft_pixel_mode_mono;
FT_TRACE6(( "BIT_ORDER %d ; BYTE_ORDER %d ; GLYPH_PAD %d\n",
PCF_BIT_ORDER( face->bitmapsFormat ),
PCF_BYTE_ORDER( face->bitmapsFormat ),
PCF_GLYPH_PAD( face->bitmapsFormat ) ));
switch ( PCF_GLYPH_PAD( face->bitmapsFormat ) )
{
case 1:
bitmap->pitch = ( bitmap->width + 7 ) >> 3;
break;
case 2:
bitmap->pitch = ( ( bitmap->width + 15 ) >> 4 ) << 1;
break;
case 4:
bitmap->pitch = ( ( bitmap->width + 31 ) >> 5 ) << 2;
break;
case 8:
bitmap->pitch = ( ( bitmap->width + 63 ) >> 6 ) << 3;
break;
default:
return FT_Err_Invalid_File_Format;
}
/* XXX: to do: are there cases that need repadding the bitmap? */
bytes = bitmap->pitch * bitmap->rows;
if ( ALLOC( bitmap->buffer, bytes ) )
goto Exit;
if ( FILE_Seek( metric->bits ) ||
FILE_Read( bitmap->buffer, bytes ) )
goto Exit;
if ( PCF_BIT_ORDER( face->bitmapsFormat ) != MSBFirst )
BitOrderInvert( bitmap->buffer,bytes );
if ( ( PCF_BYTE_ORDER( face->bitmapsFormat ) !=
PCF_BIT_ORDER( face->bitmapsFormat ) ) )
{
switch ( PCF_SCAN_UNIT( face->bitmapsFormat ) )
{
case 1:
break;
case 2:
TwoByteSwap( bitmap->buffer, bytes );
break;
case 4:
FourByteSwap( bitmap->buffer, bytes );
break;
}
}
slot->bitmap_left = 0;
slot->bitmap_top = metric->ascent;
slot->metrics.horiAdvance = metric->characterWidth << 6 ;
slot->metrics.horiBearingX = metric->rightSideBearing << 6 ;
slot->metrics.horiBearingY = metric->ascent << 6 ;
slot->metrics.width = metric->characterWidth << 6 ;
slot->metrics.height = bitmap->rows << 6;
slot->linearHoriAdvance = (FT_Fixed)bitmap->width << 16;
slot->format = ft_glyph_format_bitmap;
slot->flags = ft_glyph_own_bitmap;
FT_TRACE4(( " --- ok\n" ));
Exit:
return error;
}
static
FT_UInt PCF_Get_Char_Index( FT_CharMap charmap,
FT_Long char_code )
{
PCF_Face face = (PCF_Face)charmap->face;
PCF_Encoding en_table = face->encodings;
int low, high, mid;
FT_TRACE4(( "get_char_index %ld\n", char_code ));
low = 0;
high = face->nencodings - 1;
while ( low <= high )
{
mid = ( low + high ) / 2;
if ( char_code < en_table[mid].enc )
high = mid - 1;
else if ( char_code > en_table[mid].enc )
low = mid + 1;
else
return en_table[mid].glyph;
}
return face->defaultChar;
}
FT_CALLBACK_TABLE_DEF
const FT_Driver_Class pcf_driver_class =
{
{
ft_module_font_driver,
sizeof ( FT_DriverRec ),
"pcf",
0x10000L,
0x20000L,
0,
(FT_Module_Constructor)0,
(FT_Module_Destructor) 0,
(FT_Module_Requester) 0
},
sizeof( PCF_FaceRec ),
sizeof( FT_SizeRec ),
sizeof( FT_GlyphSlotRec ),
(FTDriver_initFace) PCF_Init_Face,
(FTDriver_doneFace) PCF_Done_Face,
(FTDriver_initSize) 0,
(FTDriver_doneSize) 0,
(FTDriver_initGlyphSlot)0,
(FTDriver_doneGlyphSlot)0,
(FTDriver_setCharSizes) PCF_Set_Pixel_Size,
(FTDriver_setPixelSizes)PCF_Set_Pixel_Size,
(FTDriver_loadGlyph) PCF_Load_Glyph,
(FTDriver_getCharIndex) PCF_Get_Char_Index,
(FTDriver_getKerning) 0,
(FTDriver_attachFile) 0,
(FTDriver_getAdvances) 0
};
#ifdef FT_CONFIG_OPTION_DYNAMIC_DRIVERS
/*************************************************************************/
/* */
/* <Function> */
/* getDriverClass */
/* */
/* <Description> */
/* This function is used when compiling the TrueType driver as a */
/* shared library (`.DLL' or `.so'). It will be used by the */
/* high-level library of FreeType to retrieve the address of the */
/* driver's generic interface. */
/* */
/* It shouldn't be implemented in a static build, as each driver must */
/* have the same function as an exported entry point. */
/* */
/* <Return> */
/* The address of the TrueType's driver generic interface. The */
/* format-specific interface can then be retrieved through the method */
/* interface->get_format_interface. */
/* */
FT_EXPORT_DEF( const FT_Driver_Class* ) getDriverClass( void )
{
return &pcf_driver_class;
}
#endif /* FT_CONFIG_OPTION_DYNAMIC_DRIVERS */
/* END */

44
src/pcf/pcfdriver.h Normal file
View File

@ -0,0 +1,44 @@
/* pcfdriver.h
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.
*/
#ifndef __PCFDRIVER_H__
#define __PCFDRIVER_H__
#include <ft2build.h>
#include FT_INTERNAL_DRIVER_H
FT_BEGIN_HEADER
FT_EXPORT_VAR( const FT_Driver_Class ) pcf_driver_class;
FT_END_HEADER
#endif /* __PCFDRIVER_H__ */
/* END */

1051
src/pcf/pcfread.c Normal file
View File

File diff suppressed because it is too large Load Diff

211
src/pcf/pcfutil.c Normal file
View File

@ -0,0 +1,211 @@
/*
Copyright 1990, 1994, 1998 The Open Group
All Rights Reserved.
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
OPEN GROUP 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.
Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.
*/
/* $XFree86: xc/lib/font/util/utilbitmap.c,v 1.3 1999/08/22 08:58:58 dawes Exp $ */
/*
* Author: Keith Packard, MIT X Consortium
*/
#include <ft2build.h>
#include FT_SOURCE_FILE(pcf,pcfutil.h)
/* Utility functions for reformatting font bitmaps */
static unsigned char _reverse_byte[0x100] =
{
0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
};
/*
* Invert bit order within each BYTE of an array.
*/
void BitOrderInvert( unsigned char* buf,
int nbytes )
{
unsigned char* rev = _reverse_byte;
for ( ; --nbytes >= 0; buf++ )
*buf = rev[*buf];
}
/*
* Invert byte order within each 16-bits of an array.
*/
void TwoByteSwap( unsigned char* buf,
int nbytes )
{
unsigned char c;
for ( ; nbytes > 0; nbytes -= 2, buf += 2 )
{
c = buf[0];
buf[0] = buf[1];
buf[1] = c;
}
}
/*
* Invert byte order within each 32-bits of an array.
*/
void FourByteSwap( unsigned char* buf,
int nbytes )
{
unsigned char c;
for ( ; nbytes > 0; nbytes -= 4, buf += 4 )
{
c = buf[0];
buf[0] = buf[3];
buf[3] = c;
c = buf[1];
buf[1] = buf[2];
buf[2] = c;
}
}
/*
* Repad a bitmap.
*/
int RepadBitmap( char* pSrc,
char* pDst,
unsigned int srcPad,
unsigned int dstPad,
int width,
int height )
{
int srcWidthBytes, dstWidthBytes;
int row, col;
char *pTmpSrc, *pTmpDst;
switch ( srcPad )
{
case 1:
srcWidthBytes = ( width + 7 ) >> 3;
break;
case 2:
srcWidthBytes = ( ( width + 15 ) >> 4 ) << 1;
break;
case 4:
srcWidthBytes = ( ( width + 31 ) >> 5 ) << 2;
break;
case 8:
srcWidthBytes = ( ( width + 63 ) >> 6 ) << 3;
break;
default:
return 0;
}
switch ( dstPad )
{
case 1:
dstWidthBytes = ( width + 7 ) >> 3;
break;
case 2:
dstWidthBytes = ( ( width + 15 ) >> 4 ) << 1;
break;
case 4:
dstWidthBytes = ( ( width + 31 ) >> 5 ) << 2;
break;
case 8:
dstWidthBytes = ( ( width + 63 ) >> 6 ) << 3;
break;
default:
return 0;
}
width = srcWidthBytes;
if ( width > dstWidthBytes )
width = dstWidthBytes;
pTmpSrc= pSrc;
pTmpDst= pDst;
for ( row = 0; row < height; row++ )
{
for ( col = 0; col < width; col++ )
*pTmpDst++ = *pTmpSrc++;
while ( col < dstWidthBytes )
{
*pTmpDst++ = '\0';
col++;
}
pTmpSrc += srcWidthBytes - width;
}
return dstWidthBytes * height;
}
/* END */

54
src/pcf/pcfutil.h Normal file
View File

@ -0,0 +1,54 @@
/* pcfutil.h
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.
*/
#ifndef __PCFUTIL_H__
#define __PCFUTIL_H__
#include <ft2build.h>
void BitOrderInvert( unsigned char* buf,
int nbytes);
void TwoByteSwap ( unsigned char* buf,
int nbytes);
void FourByteSwap ( unsigned char* buf,
int nbytes);
int RepadBitmap ( char* pSrc,
char* pDst,
unsigned int srcPad,
unsigned int dstPad,
int width,
int height);
#endif /* __PCFUTIL_H__ */
/* END */

114
src/pcf/readme Normal file
View File

@ -0,0 +1,114 @@
FreeType font driver for PCF fonts
Francesco Zappa Nardelli
<francesco.zappa.nardelli@ens.fr>
Introduction
************
PCF (Portable Compiled Format) is a binary bitmap font format, largely used
in X world. This code implements a PCF driver for the FreeType library.
Glyph images are loaded into memory only on demand, thus leading to a small
memory footprint.
Informations on the PCF font format can only be worked out from
``pcfread.c'', and ``pcfwrite.c'', to be found, for instance, in the XFree86
(www.xfree86.org) source tree (xc/lib/font/bitmap/).
Many good bitmap fonts in bdf format come with XFree86: they can be
compiled into the pcf format using the ``bdftopcf'' utility.
Supported hardware
******************
The driver has been tested on linux/x86 and sunos5.5/sparc. In both
cases the compiler was gcc. When back in Paris, I will test it also
on linux/alpha.
Encodings
*********
The variety of encodings that accompanies pcf fonts appears to encompass the
small set defined in freetype.h. On the other hand, each pcf font defines
two properties that specify encoding and registry.
I decided to make these two properties directly accessible, leaving to the
client application the work of interpreting them. For instance:
#include "pcftypes.h" /* include/freetype/internal/pcftypes.h */
FT_Face face;
PCF_Public_Face pcfface;
FT_New_Face( library,..., &face );
pcfface = (PCF_Public_Face)face;
if ((pcfface->charset_registry == "ISO10646") &&
(pcfface->charset_encoding) == "1")) [..]
Thus the driver always export ``ft_encoding_none'' as
face->charmap.encoding. FT_Get_Char_Index() behavior is unmodified, that
is, it converts the ULong value given as argument into the corresponding
glyph number.
Known problems
**************
- dealing explicitly with encodings breaks the uniformity of freetype2
api.
- except for encodings properties, client applications have no
visibility of the PCF_Face object. This means that applications
cannot directly access font tables and are obliged to trust
FreeType.
- currently, glyph names and ink_metrics are ignored.
I plan to give full visibility of the PCF_Face object in the next
release of the driver, thus implementing also glyph names and
ink_metrics.
- height is defined as (ascent - descent). Is this correct?
- if unable to read size informations from the font, PCF_Init_Face
sets available_size->width and available_size->height to 12.
- too many english grammar errors in the readme file :-(
License
*******
Copyright (C) 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.
Credits
*******
Keith Packard wrote the pcf driver found in XFree86. His work is at
the same time the specification and the sample implementation of the
PCF format. Undoubtedly, this driver is inspired from his work.

79
src/pcf/rules.mk Normal file
View File

@ -0,0 +1,79 @@
#
# FreeType 2 pcf driver configuration rules
#
# Copyright (C) 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.
# pcf driver directory
#
PCF_DIR := $(SRC_)pcf
PCF_DIR_ := $(PCF_DIR)$(SEP)
PCF_COMPILE := $(FT_COMPILE)
# pcf driver sources (i.e., C files)
#
PCF_DRV_SRC := $(PCF_DIR_)pcfread.c \
$(PCF_DIR_)pcfdriver.c \
$(PCF_DIR_)pcfutil.c
# pcf driver headers
#
PCF_DRV_H := $(PCF_DIR_)pcf.h \
$(PCF_DIR_)pcfdriver.h \
$(PCF_DIR_)pcfutil.h
# pcf driver object(s)
#
# PCF_DRV_OBJ_M is used during `multi' builds
# PCF_DRV_OBJ_S is used during `single' builds
#
PCF_DRV_OBJ_M := $(PCF_DRV_SRC:$(PCF_DIR_)%.c=$(OBJ_)%.$O)
PCF_DRV_OBJ_S := $(OBJ_)pcf.$O
# Windows driver source file for single build
#
PCF_DRV_SRC_S := $(PCF_DIR_)pcf.c
# pcf driver - single object
#
$(PCF_DRV_OBJ_S): $(PCF_DRV_SRC_S) $(PCF_DRV_SRC) $(FREETYPE_H) $(PCF_DRV_H)
$(PCF_COMPILE) $T$@ $(PCF_DRV_SRC_S)
# pcf driver - multiple objects
#
$(OBJ_)%.$O: $(PCF_DIR_)%.c $(FREETYPE_H) $(PCF_DRV_H)
$(PCF_COMPILE) $T$@ $<
# update main driver object lists
#
DRV_OBJS_S += $(PCF_DRV_OBJ_S)
DRV_OBJS_M += $(PCF_DRV_OBJ_M)
# EOF