freetype2/src/winfonts/winfnt.c

692 lines
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/***************************************************************************/
/* */
/* winfnt.c */
/* */
/* FreeType font driver for Windows FNT/FON files */
/* */
/* Copyright 1996-2001, 2002 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
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/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
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#include <ft2build.h>
#include FT_INTERNAL_DEBUG_H
#include FT_INTERNAL_STREAM_H
#include FT_INTERNAL_OBJECTS_H
#include FT_INTERNAL_FNT_TYPES_H
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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#include "winfnt.h"
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Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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#include "fnterrs.h"
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/*************************************************************************/
/* */
/* 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. */
/* */
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#undef FT_COMPONENT
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#define FT_COMPONENT trace_winfnt
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static
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const FT_Frame_Field winmz_header_fields[] =
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{
#undef FT_STRUCTURE
#define FT_STRUCTURE WinMZ_HeaderRec
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FT_FRAME_START( 64 ),
FT_FRAME_USHORT_LE ( magic ),
FT_FRAME_SKIP_BYTES( 29 * 2 ),
FT_FRAME_ULONG_LE ( lfanew ),
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FT_FRAME_END
};
static
const FT_Frame_Field winne_header_fields[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE WinNE_HeaderRec
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FT_FRAME_START( 40 ),
FT_FRAME_USHORT_LE ( magic ),
FT_FRAME_SKIP_BYTES( 34 ),
FT_FRAME_USHORT_LE ( resource_tab_offset ),
FT_FRAME_USHORT_LE ( rname_tab_offset ),
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FT_FRAME_END
};
static
const FT_Frame_Field winfnt_header_fields[] =
{
#undef FT_STRUCTURE
#define FT_STRUCTURE WinFNT_HeaderRec
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FT_FRAME_START( 134 ),
FT_FRAME_USHORT_LE( version ),
FT_FRAME_ULONG_LE ( file_size ),
FT_FRAME_BYTES ( copyright, 60 ),
FT_FRAME_USHORT_LE( file_type ),
FT_FRAME_USHORT_LE( nominal_point_size ),
FT_FRAME_USHORT_LE( vertical_resolution ),
FT_FRAME_USHORT_LE( horizontal_resolution ),
FT_FRAME_USHORT_LE( ascent ),
FT_FRAME_USHORT_LE( internal_leading ),
FT_FRAME_USHORT_LE( external_leading ),
FT_FRAME_BYTE ( italic ),
FT_FRAME_BYTE ( underline ),
FT_FRAME_BYTE ( strike_out ),
FT_FRAME_USHORT_LE( weight ),
FT_FRAME_BYTE ( charset ),
FT_FRAME_USHORT_LE( pixel_width ),
FT_FRAME_USHORT_LE( pixel_height ),
FT_FRAME_BYTE ( pitch_and_family ),
FT_FRAME_USHORT_LE( avg_width ),
FT_FRAME_USHORT_LE( max_width ),
FT_FRAME_BYTE ( first_char ),
FT_FRAME_BYTE ( last_char ),
FT_FRAME_BYTE ( default_char ),
FT_FRAME_BYTE ( break_char ),
FT_FRAME_USHORT_LE( bytes_per_row ),
FT_FRAME_ULONG_LE ( device_offset ),
FT_FRAME_ULONG_LE ( face_name_offset ),
FT_FRAME_ULONG_LE ( bits_pointer ),
FT_FRAME_ULONG_LE ( bits_offset ),
FT_FRAME_BYTE ( reserved ),
FT_FRAME_ULONG_LE ( flags ),
FT_FRAME_USHORT_LE( A_space ),
FT_FRAME_USHORT_LE( B_space ),
FT_FRAME_USHORT_LE( C_space ),
FT_FRAME_USHORT_LE( color_table_offset ),
FT_FRAME_BYTES ( reserved, 4 ),
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FT_FRAME_END
};
static void
fnt_font_done( FNT_Font font,
FT_Stream stream )
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{
if ( font->fnt_frame )
FT_FRAME_RELEASE( font->fnt_frame );
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font->fnt_size = 0;
font->fnt_frame = 0;
}
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static FT_Error
fnt_font_load( FNT_Font font,
FT_Stream stream )
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{
FT_Error error;
WinFNT_Header header = &font->header;
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/* first of all, read the FNT header */
if ( FT_STREAM_SEEK( font->offset ) ||
FT_STREAM_READ_FIELDS( winfnt_header_fields, header ) )
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goto Exit;
/* check header */
if ( header->version != 0x200 &&
header->version != 0x300 )
{
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FT_TRACE2(( "[not a valid FNT file]\n" ));
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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error = FNT_Err_Unknown_File_Format;
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goto Exit;
}
if ( header->file_type & 1 )
{
FT_TRACE2(( "[can't handle vector FNT fonts]\n" ));
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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error = FNT_Err_Unknown_File_Format;
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goto Exit;
}
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/* small fixup -- some fonts have the `pixel_width' field set to 0 */
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if ( header->pixel_width == 0 )
header->pixel_width = header->pixel_height;
/* this is a FNT file/table, we now extract its frame */
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if ( FT_STREAM_SEEK( font->offset ) ||
FT_FRAME_EXTRACT( header->file_size, font->fnt_frame ) )
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goto Exit;
Exit:
return error;
}
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static void
fnt_face_done_fonts( FNT_Face face )
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{
FT_Memory memory = FT_FACE( face )->memory;
FT_Stream stream = FT_FACE( face )->stream;
FNT_Font cur = face->fonts;
FNT_Font limit = cur + face->num_fonts;
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for ( ; cur < limit; cur++ )
fnt_font_done( cur, stream );
FT_FREE( face->fonts );
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face->num_fonts = 0;
}
static FT_Error
fnt_face_get_dll_fonts( FNT_Face face )
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{
FT_Error error;
FT_Stream stream = FT_FACE( face )->stream;
FT_Memory memory = FT_FACE( face )->memory;
WinMZ_HeaderRec mz_header;
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face->fonts = 0;
face->num_fonts = 0;
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/* does it begin with a MZ header? */
if ( FT_STREAM_SEEK( 0 ) ||
FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) )
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goto Exit;
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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error = FNT_Err_Unknown_File_Format;
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if ( mz_header.magic == WINFNT_MZ_MAGIC )
{
/* yes, now look for a NE header in the file */
WinNE_HeaderRec ne_header;
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if ( FT_STREAM_SEEK( mz_header.lfanew ) ||
FT_STREAM_READ_FIELDS( winne_header_fields, &ne_header ) )
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goto Exit;
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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error = FNT_Err_Unknown_File_Format;
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if ( ne_header.magic == WINFNT_NE_MAGIC )
{
/* good, now look in the resource table for each FNT resource */
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FT_ULong res_offset = mz_header.lfanew +
ne_header.resource_tab_offset;
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FT_UShort size_shift;
FT_UShort font_count = 0;
FT_ULong font_offset = 0;
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if ( FT_STREAM_SEEK( res_offset ) ||
FT_FRAME_ENTER( ne_header.rname_tab_offset -
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ne_header.resource_tab_offset ) )
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goto Exit;
size_shift = FT_GET_USHORT_LE();
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for (;;)
{
FT_UShort type_id, count;
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type_id = FT_GET_USHORT_LE();
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if ( !type_id )
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break;
count = FT_GET_USHORT_LE();
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if ( type_id == 0x8008 )
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{
font_count = count;
font_offset = (FT_ULong)( FT_STREAM_POS() + 4 +
( stream->cursor - stream->limit ) );
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break;
}
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stream->cursor += 4 + count * 12;
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}
FT_FRAME_EXIT();
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if ( !font_count || !font_offset )
{
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FT_TRACE2(( "this file doesn't contain any FNT resources!\n" ));
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
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error = FNT_Err_Unknown_File_Format;
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goto Exit;
}
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if ( FT_STREAM_SEEK( font_offset ) ||
FT_NEW_ARRAY( face->fonts, font_count ) )
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goto Exit;
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face->num_fonts = font_count;
if ( FT_FRAME_ENTER( (FT_Long)font_count * 12 ) )
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goto Exit;
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/* now read the offset and position of each FNT font */
{
FNT_Font cur = face->fonts;
FNT_Font limit = cur + font_count;
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for ( ; cur < limit; cur++ )
{
cur->offset = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
cur->fnt_size = (FT_ULong)FT_GET_USHORT_LE() << size_shift;
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cur->size_shift = size_shift;
stream->cursor += 8;
}
}
FT_FRAME_EXIT();
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/* finally, try to load each font there */
{
FNT_Font cur = face->fonts;
FNT_Font limit = cur + font_count;
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for ( ; cur < limit; cur++ )
{
error = fnt_font_load( cur, stream );
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if ( error )
goto Fail;
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}
}
}
}
Fail:
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if ( error )
fnt_face_done_fonts( face );
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Exit:
return error;
}
typedef struct FNT_CMapRec_
{
FT_CMapRec cmap;
FT_UInt32 first;
FT_UInt32 count;
} FNT_CMapRec, *FNT_CMap;
static FT_Error
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fnt_cmap_init( FNT_CMap cmap )
{
FNT_Face face = (FNT_Face)FT_CMAP_FACE( cmap );
FNT_Font font = face->fonts;
cmap->first = (FT_UInt32) font->header.first_char;
cmap->count = (FT_UInt32)( font->header.last_char - cmap->first + 1 );
return 0;
}
static FT_UInt
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fnt_cmap_char_index( FNT_CMap cmap,
FT_UInt32 char_code )
{
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FT_UInt gindex = 0;
char_code -= cmap->first;
if ( char_code < cmap->count )
gindex = char_code + 1;
return gindex;
}
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static FT_UInt
fnt_cmap_char_next( FNT_CMap cmap,
FT_UInt32 *pchar_code )
{
FT_UInt gindex = 0;
FT_UInt32 result = 0;
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FT_UInt32 char_code = *pchar_code + 1;
if ( char_code <= cmap->first )
{
result = cmap->first;
gindex = 1;
}
else
{
char_code -= cmap->first;
if ( char_code < cmap->count )
{
result = cmap->first + char_code;
gindex = char_code + 1;
}
}
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*pchar_code = result;
return gindex;
}
static FT_CMap_ClassRec fnt_cmap_class_rec =
{
sizeof ( FNT_CMapRec ),
(FT_CMap_InitFunc) fnt_cmap_init,
(FT_CMap_DoneFunc) NULL,
(FT_CMap_CharIndexFunc)fnt_cmap_char_index,
(FT_CMap_CharNextFunc) fnt_cmap_char_next
};
static FT_CMap_Class fnt_cmap_class = &fnt_cmap_class_rec;
static void
FNT_Face_Done( FNT_Face face )
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{
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FT_Memory memory = FT_FACE_MEMORY( face );
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fnt_face_done_fonts( face );
FT_FREE( face->root.available_sizes );
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face->root.num_fixed_sizes = 0;
}
static FT_Error
FNT_Face_Init( FT_Stream stream,
FNT_Face face,
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
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{
FT_Error error;
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FT_Memory memory = FT_FACE_MEMORY( face );
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FT_UNUSED( num_params );
FT_UNUSED( params );
FT_UNUSED( face_index );
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/* try to load several fonts from a DLL */
error = fnt_face_get_dll_fonts( face );
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if ( error )
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{
/* this didn't work, now try to load a single FNT font */
FNT_Font font;
if ( FT_NEW( face->fonts ) )
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goto Exit;
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face->num_fonts = 1;
font = face->fonts;
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font->offset = 0;
font->fnt_size = stream->size;
error = fnt_font_load( font, stream );
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if ( error )
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goto Fail;
}
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/* all right, one or more fonts were loaded; we now need to */
/* fill the root FT_Face fields with relevant information */
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{
FT_Face root = FT_FACE( face );
FNT_Font fonts = face->fonts;
FNT_Font limit = fonts + face->num_fonts;
FNT_Font cur;
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root->num_faces = 1;
root->face_flags = FT_FACE_FLAG_FIXED_SIZES |
FT_FACE_FLAG_HORIZONTAL;
if ( fonts->header.avg_width == fonts->header.max_width )
root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
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if ( fonts->header.italic )
root->style_flags |= FT_STYLE_FLAG_ITALIC;
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if ( fonts->header.weight >= 800 )
root->style_flags |= FT_STYLE_FLAG_BOLD;
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/* Setup the `fixed_sizes' array */
if ( FT_NEW_ARRAY( root->available_sizes, face->num_fonts ) )
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goto Fail;
root->num_fixed_sizes = face->num_fonts;
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{
FT_Bitmap_Size* size = root->available_sizes;
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for ( cur = fonts; cur < limit; cur++, size++ )
{
size->width = cur->header.pixel_width;
size->height = cur->header.pixel_height;
}
}
{
FT_CharMapRec charmap;
charmap.encoding = FT_ENCODING_UNICODE;
charmap.platform_id = 3;
charmap.encoding_id = 1;
charmap.face = root;
error = FT_CMap_New( fnt_cmap_class,
NULL,
&charmap,
NULL );
if ( error )
goto Fail;
/* Select default charmap */
if ( root->num_charmaps )
root->charmap = root->charmaps[0];
}
/* setup remaining flags */
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root->num_glyphs = fonts->header.last_char -
fonts->header.first_char + 1;
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root->family_name = (FT_String*)fonts->fnt_frame +
fonts->header.face_name_offset;
root->style_name = (char *)"Regular";
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if ( root->style_flags & FT_STYLE_FLAG_BOLD )
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{
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if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
root->style_name = (char *)"Bold Italic";
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else
root->style_name = (char *)"Bold";
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}
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else if ( root->style_flags & FT_STYLE_FLAG_ITALIC )
root->style_name = (char *)"Italic";
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}
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Fail:
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if ( error )
FNT_Face_Done( face );
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Exit:
return error;
}
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static FT_Error
FNT_Size_Set_Pixels( FNT_Size size )
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{
/* look up a font corresponding to the current pixel size */
FNT_Face face = (FNT_Face)FT_SIZE_FACE( size );
FNT_Font cur = face->fonts;
FNT_Font limit = cur + face->num_fonts;
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size->font = 0;
for ( ; cur < limit; cur++ )
{
/* we only compare the character height, as fonts used some strange */
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/* values */
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if ( cur->header.pixel_height == size->root.metrics.y_ppem )
{
size->font = cur;
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size->root.metrics.ascender = cur->header.ascent * 64;
size->root.metrics.descender = ( cur->header.pixel_height -
cur->header.ascent ) * 64;
size->root.metrics.height = cur->header.pixel_height * 64;
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break;
}
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}
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
2001-06-06 19:30:41 +02:00
return ( size->font ? FNT_Err_Ok : FNT_Err_Invalid_Pixel_Size );
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}
static FT_Error
FNT_Load_Glyph( FT_GlyphSlot slot,
FNT_Size size,
FT_UInt glyph_index,
FT_Int load_flags )
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{
FNT_Font font = size->font;
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FT_Error error = 0;
FT_Byte* p;
FT_Int len;
FT_Bitmap* bitmap = &slot->bitmap;
FT_ULong offset;
FT_Bool new_format;
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FT_UNUSED( slot );
FT_UNUSED( load_flags );
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if ( !font )
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{
Complete redesign of error codes. Please check ftmoderr.h for more details. * include/freetype/internal/cfferrs.h, include/freetype/internal/tterrors.h, include/freetype/internal/t1errors.h: Removed. Replaced with files local to the module. All extra error codes have been moved to `fterrors.h'. * src/sfnt/ttpost.h: Move error codes to `fterrors.h'. * src/autohint/aherrors.h, src/cache/ftcerror.h, src/cff/cfferrs.h, src/cid/ciderrs.h, src/pcf/pcferror.h, src/psaux/psauxerr.h, src/psnames/psnamerr.h, src/raster/rasterrs.h, src/sfnt/sferrors.h, src/smooth/ftsmerrs.h, src/truetype/tterrors.h, src/type1/t1errors.h, src/winfonts/fnterrs.h: New files defining the error names for the module it belongs to. * include/freetype/ftmoderr.h: New file, defining the module error offsets. Its structure is similar to `fterrors.h'. * include/freetype/fterrors.h (FT_NOERRORDEF): New macro. (FT_ERRORDEF): Redefined to use module error offsets. All internal error codes are now public; unused error codes have been removed, some are new. * include/freetype/config/ftheader.h (FT_MODULE_ERRORS_H): New macro. * include/freetype/config/ftoption.h (FT_CONFIG_OPTION_USE_MODULE_ERRORS): New macro. All other source files have been updated to use the new error codes; some already existing (internal) error codes local to a module have been renamed to give them the same name as in the base module. All make files have been updated to include the local error files. * src/cid/cidtokens.h: Replaced with... * src/cid/cidtoken.h: This file for 8+3 consistency. * src/raster/ftraster.c: Use macros for header file names.
2001-06-06 19:30:41 +02:00
error = FNT_Err_Invalid_Argument;
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goto Exit;
}
if ( glyph_index > 0 )
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glyph_index--;
else
glyph_index = font->header.default_char - font->header.first_char;
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new_format = FT_BOOL( font->header.version == 0x300 );
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len = new_format ? 6 : 4;
/* jump to glyph entry */
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p = font->fnt_frame + 118 + len * glyph_index;
bitmap->width = FT_NEXT_SHORT_LE( p );
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if ( new_format )
offset = FT_NEXT_ULONG_LE( p );
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else
offset = FT_NEXT_USHORT_LE( p );
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/* jump to glyph data */
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p = font->fnt_frame + /* font->header.bits_offset */ + offset;
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/* allocate and build bitmap */
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{
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FT_Memory memory = FT_FACE_MEMORY( slot->face );
FT_Int pitch = ( bitmap->width + 7 ) >> 3;
FT_Byte* column;
FT_Byte* write;
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bitmap->pitch = pitch;
bitmap->rows = font->header.pixel_height;
bitmap->pixel_mode = FT_PIXEL_MODE_MONO;
if ( FT_ALLOC( bitmap->buffer, pitch * bitmap->rows ) )
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goto Exit;
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column = (FT_Byte*)bitmap->buffer;
for ( ; pitch > 0; pitch--, column++ )
{
FT_Byte* limit = p + bitmap->rows;
2000-07-09 00:52:21 +02:00
2000-07-07 21:46:01 +02:00
for ( write = column; p < limit; p++, write += bitmap->pitch )
write[0] = p[0];
}
}
slot->flags = FT_GLYPH_OWN_BITMAP;
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slot->bitmap_left = 0;
slot->bitmap_top = font->header.ascent;
slot->format = FT_GLYPH_FORMAT_BITMAP;
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/* now set up metrics */
slot->metrics.horiAdvance = bitmap->width << 6;
slot->metrics.horiBearingX = 0;
slot->metrics.horiBearingY = slot->bitmap_top << 6;
slot->linearHoriAdvance = (FT_Fixed)bitmap->width << 16;
slot->format = FT_GLYPH_FORMAT_BITMAP;
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Exit:
return error;
}
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FT_CALLBACK_TABLE_DEF
const FT_Driver_ClassRec winfnt_driver_class =
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{
{
ft_module_font_driver,
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sizeof ( FT_DriverRec ),
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"winfonts",
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0x10000L,
0x20000L,
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0,
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(FT_Module_Constructor)0,
(FT_Module_Destructor) 0,
(FT_Module_Requester) 0
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},
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sizeof( FNT_FaceRec ),
sizeof( FNT_SizeRec ),
sizeof( FT_GlyphSlotRec ),
(FT_Face_InitFunc) FNT_Face_Init,
(FT_Face_DoneFunc) FNT_Face_Done,
(FT_Size_InitFunc) 0,
(FT_Size_DoneFunc) 0,
(FT_Slot_InitFunc) 0,
(FT_Slot_DoneFunc) 0,
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(FT_Size_ResetPointsFunc) FNT_Size_Set_Pixels,
(FT_Size_ResetPixelsFunc) FNT_Size_Set_Pixels,
(FT_Slot_LoadFunc) FNT_Load_Glyph,
2002-03-22 18:09:52 +01:00
(FT_Face_GetKerningFunc) 0,
(FT_Face_AttachFunc) 0,
(FT_Face_GetAdvancesFunc) 0
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};
2000-07-09 00:52:21 +02:00
/* END */