X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=libraries%2Ffreetype-2.0.5%2Fsfobjs.c;fp=libraries%2Ffreetype-2.0.5%2Fsfobjs.c;h=0000000000000000000000000000000000000000;hp=f4966be9a7e4e322a173238b10d19e0568787b33;hb=bab0189ee9d56aca8bea909275317ab4e0be09ee;hpb=b837c0527f117b54845242ee7626df6d88394444 diff --git a/libraries/freetype-2.0.5/sfobjs.c b/libraries/freetype-2.0.5/sfobjs.c deleted file mode 100644 index f4966be..0000000 --- a/libraries/freetype-2.0.5/sfobjs.c +++ /dev/null @@ -1,673 +0,0 @@ -/***************************************************************************/ -/* */ -/* sfobjs.c */ -/* */ -/* SFNT object management (base). */ -/* */ -/* Copyright 1996-2001 by */ -/* David Turner, Robert Wilhelm, and Werner Lemberg. */ -/* */ -/* This file is part of the FreeType project, and may only be used, */ -/* modified, and distributed under the terms of the FreeType project */ -/* 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. */ -/* */ -/***************************************************************************/ - - -#include -#include "sfobjs.h" -#include "ttload.h" -#include FT_INTERNAL_SFNT_H -#include FT_INTERNAL_POSTSCRIPT_NAMES_H -#include FT_TRUETYPE_IDS_H -#include FT_TRUETYPE_TAGS_H - -#include "sferrors.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_sfobjs - - - /*************************************************************************/ - /* */ - /* */ - /* Get_Name */ - /* */ - /* */ - /* Returns a given ENGLISH name record in ASCII. */ - /* */ - /* */ - /* face :: A handle to the source face object. */ - /* */ - /* nameid :: The name id of the name record to return. */ - /* */ - /* */ - /* Character string. NULL if no name is present. */ - /* */ - static FT_String* - Get_Name( TT_Face face, - FT_UShort nameid ) - { - FT_Memory memory = face->root.memory; - FT_UShort n; - TT_NameRec* rec; - FT_Bool wide_chars = 1; - - - rec = face->name_table.names; - for ( n = 0; n < face->name_table.numNameRecords; n++, rec++ ) - { - if ( rec->nameID == nameid ) - { - /* found the name -- now create an ASCII string from it */ - FT_Bool found = 0; - - - /* test for Microsoft English language */ - if ( rec->platformID == TT_PLATFORM_MICROSOFT && - rec->encodingID <= TT_MS_ID_UNICODE_CS && - ( rec->languageID & 0x3FF ) == 0x009 ) - found = 1; - - /* test for Apple Unicode encoding */ - else if ( rec->platformID == TT_PLATFORM_APPLE_UNICODE ) - found = 1; - - /* test for Apple Roman */ - else if ( rec->platformID == TT_PLATFORM_MACINTOSH && - rec->languageID == TT_MAC_ID_ROMAN ) - { - found = 1; - wide_chars = 0; - } - - /* found a Unicode name */ - if ( found ) - { - FT_String* string; - FT_UInt len; - - - if ( wide_chars ) - { - FT_UInt m; - - - len = (FT_UInt)rec->stringLength / 2; - if ( MEM_Alloc( string, len + 1 ) ) - return NULL; - - for ( m = 0; m < len; m ++ ) - string[m] = rec->string[2 * m + 1]; - } - else - { - len = rec->stringLength; - if ( MEM_Alloc( string, len + 1 ) ) - return NULL; - - MEM_Copy( string, rec->string, len ); - } - - string[len] = '\0'; - return string; - } - } - } - - return NULL; - } - - - static FT_Encoding - find_encoding( int platform_id, - int encoding_id ) - { - typedef struct TEncoding - { - int platform_id; - int encoding_id; - FT_Encoding encoding; - - } TEncoding; - - static - const TEncoding tt_encodings[] = - { - { TT_PLATFORM_ISO, -1, ft_encoding_unicode }, - - { TT_PLATFORM_APPLE_UNICODE, -1, ft_encoding_unicode }, - - { TT_PLATFORM_MACINTOSH, TT_MAC_ID_ROMAN, ft_encoding_apple_roman }, - - { TT_PLATFORM_MICROSOFT, TT_MS_ID_SYMBOL_CS, ft_encoding_symbol }, - { TT_PLATFORM_MICROSOFT, TT_MS_ID_UCS_4, ft_encoding_unicode }, - { TT_PLATFORM_MICROSOFT, TT_MS_ID_UNICODE_CS, ft_encoding_unicode }, - { TT_PLATFORM_MICROSOFT, TT_MS_ID_SJIS, ft_encoding_sjis }, - { TT_PLATFORM_MICROSOFT, TT_MS_ID_GB2312, ft_encoding_gb2312 }, - { TT_PLATFORM_MICROSOFT, TT_MS_ID_BIG_5, ft_encoding_big5 }, - { TT_PLATFORM_MICROSOFT, TT_MS_ID_WANSUNG, ft_encoding_wansung }, - { TT_PLATFORM_MICROSOFT, TT_MS_ID_JOHAB, ft_encoding_johab } - }; - - const TEncoding *cur, *limit; - - - cur = tt_encodings; - limit = cur + sizeof ( tt_encodings ) / sizeof ( tt_encodings[0] ); - - for ( ; cur < limit; cur++ ) - { - if ( cur->platform_id == platform_id ) - { - if ( cur->encoding_id == encoding_id || - cur->encoding_id == -1 ) - return cur->encoding; - } - } - - return ft_encoding_none; - } - - - FT_LOCAL_DEF FT_Error - SFNT_Init_Face( FT_Stream stream, - TT_Face face, - FT_Int face_index, - FT_Int num_params, - FT_Parameter* params ) - { - FT_Error error; - FT_Library library = face->root.driver->root.library; - SFNT_Interface* sfnt; - SFNT_Header sfnt_header; - - /* for now, parameters are unused */ - FT_UNUSED( num_params ); - FT_UNUSED( params ); - - sfnt = (SFNT_Interface*)face->sfnt; - if ( !sfnt ) - { - sfnt = (SFNT_Interface*)FT_Get_Module_Interface( library, "sfnt" ); - if ( !sfnt ) - { - error = SFNT_Err_Invalid_File_Format; - goto Exit; - } - - face->sfnt = sfnt; - face->goto_table = sfnt->goto_table; - } - - if ( !face->psnames ) - { - face->psnames = (PSNames_Interface*) - FT_Get_Module_Interface( library, "psnames" ); - } - - /* check that we have a valid TrueType file */ - error = sfnt->load_sfnt_header( face, stream, face_index, &sfnt_header ); - if ( error ) - goto Exit; - - face->format_tag = sfnt_header.format_tag; - face->num_tables = sfnt_header.num_tables; - - /* Load font directory */ - error = sfnt->load_directory( face, stream, &sfnt_header ); - if ( error ) - goto Exit; - - face->root.num_faces = face->ttc_header.count; - if ( face->root.num_faces < 1 ) - face->root.num_faces = 1; - - Exit: - return error; - } - - -#undef LOAD_ -#define LOAD_( x ) ( ( error = sfnt->load_##x( face, stream ) ) \ - != SFNT_Err_Ok ) - - - FT_LOCAL_DEF FT_Error - SFNT_Load_Face( FT_Stream stream, - TT_Face face, - FT_Int face_index, - FT_Int num_params, - FT_Parameter* params ) - { - FT_Error error; - FT_Bool has_outline; - FT_Bool is_apple_sbit; - - SFNT_Interface* sfnt = (SFNT_Interface*)face->sfnt; - - FT_UNUSED( face_index ); - FT_UNUSED( num_params ); - FT_UNUSED( params ); - - - /* Load tables */ - - /* We now support two SFNT-based bitmapped font formats. They */ - /* are recognized easily as they do not include a `glyf' */ - /* table. */ - /* */ - /* The first format comes from Apple, and uses a table named */ - /* `bhed' instead of `head' to store the font header (using */ - /* the same format). It also doesn't include horizontal and */ - /* vertical metrics tables (i.e. `hhea' and `vhea' tables are */ - /* missing). */ - /* */ - /* The other format comes from Microsoft, and is used with */ - /* WinCE/PocketPC. It looks like a standard TTF, except that */ - /* it doesn't contain outlines. */ - /* */ - - /* do we have outlines in there? */ - has_outline = FT_BOOL( ( TT_LookUp_Table( face, TTAG_glyf ) != 0 ) || - ( TT_LookUp_Table( face, TTAG_CFF ) != 0 ) ); - is_apple_sbit = 0; - -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS - - /* if this font doesn't contain outlines, we try to load */ - /* a `bhed' table */ - if ( !has_outline ) - is_apple_sbit = FT_BOOL( !LOAD_( bitmap_header ) ); - -#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ - - /* load the font header (`head' table) if this isn't an Apple */ - /* sbit font file */ - if ( !is_apple_sbit && LOAD_( header ) ) - goto Exit; - - /* load other tables */ - if ( LOAD_( max_profile ) || - LOAD_( charmaps ) || - LOAD_( names ) || - LOAD_( psnames ) ) - goto Exit; - - /* do not load the metrics headers and tables if this is an Apple */ - /* sbit font file */ - if ( !is_apple_sbit ) - { - /* load the `hhea' and `hmtx' tables at once */ - error = sfnt->load_metrics( face, stream, 0 ); - if ( error ) - goto Exit; - - /* try to load the `vhea' and `vmtx' tables at once */ - error = sfnt->load_metrics( face, stream, 1 ); - if ( error ) - goto Exit; - - if ( LOAD_( os2 ) ) - goto Exit; - } - - /* the optional tables */ - -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS - - /* embedded bitmap support. */ - if ( sfnt->load_sbits && LOAD_( sbits ) ) - { - /* return an error if this font file has no outlines */ - if ( error == SFNT_Err_Table_Missing && has_outline ) - error = SFNT_Err_Ok; - else - goto Exit; - } -#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ - - if ( LOAD_( hdmx ) || - LOAD_( gasp ) || - LOAD_( kerning ) || - LOAD_( pclt ) ) - goto Exit; - -#ifdef TT_CONFIG_OPTION_EXTEND_ENGINE - if ( ( error = TT_Extension_Create( face ) ) != SFNT_Err_Ok ) - goto Exit; -#endif - - face->root.family_name = Get_Name( face, TT_NAME_ID_FONT_FAMILY ); - face->root.style_name = Get_Name( face, TT_NAME_ID_FONT_SUBFAMILY ); - - /* now set up root fields */ - { - FT_Face root = &face->root; - FT_Int flags = 0; - TT_CharMap charmap; - FT_Int n; - FT_Memory memory; - - - memory = root->memory; - - /*********************************************************************/ - /* */ - /* Compute face flags. */ - /* */ - if ( has_outline == TRUE ) - flags = FT_FACE_FLAG_SCALABLE; /* scalable outlines */ - - flags |= FT_FACE_FLAG_SFNT | /* SFNT file format */ - FT_FACE_FLAG_HORIZONTAL; /* horizontal data */ - -#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES - /* might need more polish to detect the presence of a Postscript */ - /* name table in the font */ - flags |= FT_FACE_FLAG_GLYPH_NAMES; -#endif - - /* fixed width font? */ - if ( face->postscript.isFixedPitch ) - flags |= FT_FACE_FLAG_FIXED_WIDTH; - - /* vertical information? */ - if ( face->vertical_info ) - flags |= FT_FACE_FLAG_VERTICAL; - - /* kerning available ? */ - if ( face->kern_pairs ) - flags |= FT_FACE_FLAG_KERNING; - - root->face_flags = flags; - - /*********************************************************************/ - /* */ - /* Compute style flags. */ - /* */ - flags = 0; - if ( has_outline == TRUE && face->os2.version != 0xFFFF ) - { - /* we have an OS/2 table; use the `fsSelection' field */ - if ( face->os2.fsSelection & 1 ) - flags |= FT_STYLE_FLAG_ITALIC; - - if ( face->os2.fsSelection & 32 ) - flags |= FT_STYLE_FLAG_BOLD; - } - else - { - /* this is an old Mac font, use the header field */ - if ( face->header.Mac_Style & 1 ) - flags |= FT_STYLE_FLAG_BOLD; - - if ( face->header.Mac_Style & 2 ) - flags |= FT_STYLE_FLAG_ITALIC; - } - - root->style_flags = flags; - - /*********************************************************************/ - /* */ - /* Polish the charmaps. */ - /* */ - /* Try to set the charmap encoding according to the platform & */ - /* encoding ID of each charmap. */ - /* */ - charmap = face->charmaps; - root->num_charmaps = face->num_charmaps; - - /* allocate table of pointers */ - if ( ALLOC_ARRAY( root->charmaps, root->num_charmaps, FT_CharMap ) ) - goto Exit; - - for ( n = 0; n < root->num_charmaps; n++, charmap++ ) - { - FT_Int platform = charmap->cmap.platformID; - FT_Int encoding = charmap->cmap.platformEncodingID; - - - charmap->root.face = (FT_Face)face; - charmap->root.platform_id = (FT_UShort)platform; - charmap->root.encoding_id = (FT_UShort)encoding; - charmap->root.encoding = find_encoding( platform, encoding ); - - /* now, set root->charmap with a unicode charmap */ - /* wherever available */ - if ( !root->charmap && - charmap->root.encoding == ft_encoding_unicode ) - root->charmap = (FT_CharMap)charmap; - - root->charmaps[n] = (FT_CharMap)charmap; - } - -#ifdef TT_CONFIG_OPTION_EMBEDDED_BITMAPS - - if ( face->num_sbit_strikes ) - { - root->face_flags |= FT_FACE_FLAG_FIXED_SIZES; - -#if 0 - /* I don't know criteria whether layout is horizontal or vertical */ - if ( has_outline.... ) - { - ... - root->face_flags |= FT_FACE_FLAG_VERTICAL; - } -#endif - root->num_fixed_sizes = face->num_sbit_strikes; - - if ( ALLOC_ARRAY( root->available_sizes, - face->num_sbit_strikes, - FT_Bitmap_Size ) ) - goto Exit; - - for ( n = 0 ; n < face->num_sbit_strikes ; n++ ) - { - root->available_sizes[n].width = - face->sbit_strikes[n].x_ppem; - - root->available_sizes[n].height = - face->sbit_strikes[n].y_ppem; - } - } - else - -#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */ - - { - root->num_fixed_sizes = 0; - root->available_sizes = 0; - } - - /*********************************************************************/ - /* */ - /* Set up metrics. */ - /* */ - if ( has_outline == TRUE ) - { - /* XXX What about if outline header is missing */ - /* (e.g. sfnt wrapped outline)? */ - root->bbox.xMin = face->header.xMin; - root->bbox.yMin = face->header.yMin; - root->bbox.xMax = face->header.xMax; - root->bbox.yMax = face->header.yMax; - root->units_per_EM = face->header.Units_Per_EM; - - - /* XXX: Computing the ascender/descender/height is very different */ - /* from what the specification tells you. Apparently, we */ - /* must be careful because */ - /* */ - /* - not all fonts have an OS/2 table; in this case, we take */ - /* the values in the horizontal header. However, these */ - /* values very often are not reliable. */ - /* */ - /* - otherwise, the correct typographic values are in the */ - /* sTypoAscender, sTypoDescender & sTypoLineGap fields. */ - /* */ - /* However, certains fonts have these fields set to 0. */ - /* Rather, they have usWinAscent & usWinDescent correctly */ - /* set (but with different values). */ - /* */ - /* As an example, Arial Narrow is implemented through four */ - /* files ARIALN.TTF, ARIALNI.TTF, ARIALNB.TTF & ARIALNBI.TTF */ - /* */ - /* Strangely, all fonts have the same values in their */ - /* sTypoXXX fields, except ARIALNB which sets them to 0. */ - /* */ - /* On the other hand, they all have different */ - /* usWinAscent/Descent values -- as a conclusion, the OS/2 */ - /* table cannot be used to compute the text height reliably! */ - /* */ - - /* The ascender/descender/height are computed from the OS/2 table */ - /* when found. Otherwise, they're taken from the horizontal */ - /* header. */ - /* */ - - root->ascender = face->horizontal.Ascender; - root->descender = face->horizontal.Descender; - - root->height = (FT_Short)( root->ascender - root->descender + - face->horizontal.Line_Gap ); - - /* if the line_gap is 0, we add an extra 15% to the text height -- */ - /* this computation is based on various versions of Times New Roman */ - if ( face->horizontal.Line_Gap == 0 ) - root->height = (FT_Short)( ( root->height * 115 + 50 ) / 100 ); - -#if 0 - - /* some fonts have the OS/2 "sTypoAscender", "sTypoDescender" & */ - /* "sTypoLineGap" fields set to 0, like ARIALNB.TTF */ - if ( face->os2.version != 0xFFFF && root->ascender ) - { - FT_Int height; - - - root->ascender = face->os2.sTypoAscender; - root->descender = -face->os2.sTypoDescender; - - height = root->ascender + root->descender + face->os2.sTypoLineGap; - if ( height > root->height ) - root->height = height; - } - -#endif /* 0 */ - - root->max_advance_width = face->horizontal.advance_Width_Max; - - root->max_advance_height = (FT_Short)( face->vertical_info - ? face->vertical.advance_Height_Max - : root->height ); - - root->underline_position = face->postscript.underlinePosition; - root->underline_thickness = face->postscript.underlineThickness; - - /* root->max_points -- already set up */ - /* root->max_contours -- already set up */ - } - } - - Exit: - return error; - } - - -#undef LOAD_ - - - FT_LOCAL_DEF void - SFNT_Done_Face( TT_Face face ) - { - FT_Memory memory = face->root.memory; - SFNT_Interface* sfnt = (SFNT_Interface*)face->sfnt; - - - if ( sfnt ) - { - /* destroy the postscript names table if it is loaded */ - if ( sfnt->free_psnames ) - sfnt->free_psnames( face ); - - /* destroy the embedded bitmaps table if it is loaded */ - if ( sfnt->free_sbits ) - sfnt->free_sbits( face ); - } - - /* freeing the kerning table */ - FREE( face->kern_pairs ); - face->num_kern_pairs = 0; - - /* freeing the collection table */ - FREE( face->ttc_header.offsets ); - face->ttc_header.count = 0; - - /* freeing table directory */ - FREE( face->dir_tables ); - face->num_tables = 0; - - /* freeing the character mapping tables */ - if ( sfnt && sfnt->load_charmaps ) - { - FT_UShort n; - - - for ( n = 0; n < face->num_charmaps; n++ ) - sfnt->free_charmap( face, &face->charmaps[n].cmap ); - } - - FREE( face->charmaps ); - face->num_charmaps = 0; - - FREE( face->root.charmaps ); - face->root.num_charmaps = 0; - face->root.charmap = 0; - - /* freeing the horizontal metrics */ - FREE( face->horizontal.long_metrics ); - FREE( face->horizontal.short_metrics ); - - /* freeing the vertical ones, if any */ - if ( face->vertical_info ) - { - FREE( face->vertical.long_metrics ); - FREE( face->vertical.short_metrics ); - face->vertical_info = 0; - } - - /* freeing the gasp table */ - FREE( face->gasp.gaspRanges ); - face->gasp.numRanges = 0; - - /* freeing the name table */ - sfnt->free_names( face ); - - /* freeing the hdmx table */ - sfnt->free_hdmx( face ); - - /* freeing family and style name */ - FREE( face->root.family_name ); - FREE( face->root.style_name ); - - /* freeing sbit size table */ - face->root.num_fixed_sizes = 0; - if ( face->root.available_sizes ) - FREE( face->root.available_sizes ); - - face->sfnt = 0; - } - - -/* END */