diff options
author | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
---|---|---|
committer | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
commit | a38fc482eeeb2c1929803c233835369dcf1b8781 (patch) | |
tree | 73115efff0a679d5d62e2150a35d135651175ec7 /src/cff | |
parent | f463818dd9146e11105c0572fb119e757eb47768 (diff) | |
download | android_external_freetype-a38fc482eeeb2c1929803c233835369dcf1b8781.tar.gz android_external_freetype-a38fc482eeeb2c1929803c233835369dcf1b8781.tar.bz2 android_external_freetype-a38fc482eeeb2c1929803c233835369dcf1b8781.zip |
Initial Contribution
Diffstat (limited to 'src/cff')
-rw-r--r-- | src/cff/Jamfile | 29 | ||||
-rw-r--r-- | src/cff/cffcmap.c | 10 | ||||
-rw-r--r-- | src/cff/cffdrivr.c | 153 | ||||
-rw-r--r-- | src/cff/cffgload.c | 161 | ||||
-rw-r--r-- | src/cff/cffgload.h | 14 | ||||
-rw-r--r-- | src/cff/cffload.c | 13 | ||||
-rw-r--r-- | src/cff/cffobjs.c | 326 | ||||
-rw-r--r-- | src/cff/cffobjs.h | 22 | ||||
-rw-r--r-- | src/cff/cffparse.c | 309 | ||||
-rw-r--r-- | src/cff/cfftypes.h | 8 | ||||
-rw-r--r-- | src/cff/module.mk | 23 | ||||
-rw-r--r-- | src/cff/rules.mk | 72 |
12 files changed, 784 insertions, 356 deletions
diff --git a/src/cff/Jamfile b/src/cff/Jamfile deleted file mode 100644 index 6d0bb1b..0000000 --- a/src/cff/Jamfile +++ /dev/null @@ -1,29 +0,0 @@ -# FreeType 2 src/cff Jamfile -# -# Copyright 2001, 2002 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. - -SubDir FT2_TOP $(FT2_SRC_DIR) cff ; - -{ - local _sources ; - - if $(FT2_MULTI) - { - _sources = cffdrivr cffgload cffload cffobjs cffparse cffcmap ; - } - else - { - _sources = cff ; - } - - Library $(FT2_LIB) : $(_sources).c ; -} - -# end of src/cff Jamfile diff --git a/src/cff/cffcmap.c b/src/cff/cffcmap.c index fffc5fc..578d048 100644 --- a/src/cff/cffcmap.c +++ b/src/cff/cffcmap.c @@ -4,7 +4,7 @@ /* */ /* CFF character mapping table (cmap) support (body). */ /* */ -/* Copyright 2002, 2003, 2004, 2005, 2006 by */ +/* Copyright 2002, 2003, 2004, 2005, 2006, 2007 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -107,7 +107,9 @@ (FT_CMap_InitFunc) cff_cmap_encoding_init, (FT_CMap_DoneFunc) cff_cmap_encoding_done, (FT_CMap_CharIndexFunc)cff_cmap_encoding_char_index, - (FT_CMap_CharNextFunc) cff_cmap_encoding_char_next + (FT_CMap_CharNextFunc) cff_cmap_encoding_char_next, + + NULL, NULL, NULL, NULL, NULL }; @@ -213,7 +215,9 @@ (FT_CMap_InitFunc) cff_cmap_unicode_init, (FT_CMap_DoneFunc) cff_cmap_unicode_done, (FT_CMap_CharIndexFunc)cff_cmap_unicode_char_index, - (FT_CMap_CharNextFunc) cff_cmap_unicode_char_next + (FT_CMap_CharNextFunc) cff_cmap_unicode_char_next, + + NULL, NULL, NULL, NULL, NULL }; diff --git a/src/cff/cffdrivr.c b/src/cff/cffdrivr.c index 952e88e..68de8dc 100644 --- a/src/cff/cffdrivr.c +++ b/src/cff/cffdrivr.c @@ -22,8 +22,10 @@ #include FT_INTERNAL_STREAM_H #include FT_INTERNAL_SFNT_H #include FT_TRUETYPE_IDS_H +#include FT_SERVICE_CID_H #include FT_SERVICE_POSTSCRIPT_CMAPS_H #include FT_SERVICE_POSTSCRIPT_INFO_H +#include FT_SERVICE_POSTSCRIPT_NAME_H #include FT_SERVICE_TT_CMAP_H #include "cffdrivr.h" @@ -151,7 +153,7 @@ FT_UInt glyph_index, FT_Int32 load_flags ) { - FT_Error error; + FT_Error error; CFF_GlyphSlot slot = (CFF_GlyphSlot)cffslot; CFF_Size size = (CFF_Size)cffsize; @@ -163,10 +165,10 @@ if ( !size ) load_flags |= FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING; + /* reset the size object if necessary */ if ( load_flags & FT_LOAD_NO_SCALE ) size = NULL; - /* reset the size object if necessary */ if ( size ) { /* these two objects must have the same parent */ @@ -184,6 +186,32 @@ } + FT_CALLBACK_DEF(FT_Error) + cff_get_advances( FT_Face ftface, + FT_UInt start, + FT_UInt count, + FT_UInt flags, + FT_Fixed* advances ) + { + CFF_Face face = (CFF_Face) ftface; + FT_UInt nn; + FT_Error error = 0; + FT_GlyphSlot slot = face->root.glyph; + + flags |= FT_LOAD_ADVANCE_ONLY; + + for (nn = 0; nn < count; nn++) + { + error = Load_Glyph( slot, face->root.size, start+nn, flags ); + if (error) break; + + advances[nn] = (flags & FT_LOAD_VERTICAL_LAYOUT) + ? slot->advance.y + : slot->advance.x; + } + return error; + } + /* * GLYPH DICT SERVICE * @@ -226,8 +254,8 @@ FT_FREE( gname ); error = CFF_Err_Ok; - Exit: - return error; + Exit: + return error; } @@ -284,10 +312,10 @@ }; - /* - * POSTSCRIPT INFO SERVICE - * - */ + /* + * POSTSCRIPT INFO SERVICE + * + */ static FT_Int cff_ps_has_glyph_names( FT_Face face ) @@ -306,9 +334,10 @@ if ( cff && cff->font_info == NULL ) { - CFF_FontRecDict dict = &cff->top_font.font_dict; - PS_FontInfoRec *font_info; - FT_Memory memory = face->root.memory; + CFF_FontRecDict dict = &cff->top_font.font_dict; + PS_FontInfoRec *font_info; + FT_Memory memory = face->root.memory; + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames; if ( FT_ALLOC( font_info, sizeof ( *font_info ) ) ) @@ -316,19 +345,19 @@ font_info->version = cff_index_get_sid_string( &cff->string_index, dict->version, - cff->psnames ); + psnames ); font_info->notice = cff_index_get_sid_string( &cff->string_index, dict->notice, - cff->psnames ); + psnames ); font_info->full_name = cff_index_get_sid_string( &cff->string_index, dict->full_name, - cff->psnames ); + psnames ); font_info->family_name = cff_index_get_sid_string( &cff->string_index, dict->family_name, - cff->psnames ); + psnames ); font_info->weight = cff_index_get_sid_string( &cff->string_index, dict->weight, - cff->psnames ); + psnames ); font_info->italic_angle = dict->italic_angle; font_info->is_fixed_pitch = dict->is_fixed_pitch; font_info->underline_position = (FT_Short)dict->underline_position; @@ -353,6 +382,27 @@ /* + * POSTSCRIPT NAME SERVICE + * + */ + + static const char* + cff_get_ps_name( CFF_Face face ) + { + CFF_Font cff = (CFF_Font)face->extra.data; + + + return (const char*)cff->font_name; + } + + + static const FT_Service_PsFontNameRec cff_service_ps_name = + { + (FT_PsName_GetFunc)cff_get_ps_name + }; + + + /* * TT CMAP INFO * * If the charmap is a synthetic Unicode encoding cmap or @@ -397,6 +447,65 @@ }; + /* + * CID INFO SERVICE + * + */ + static FT_Error + cff_get_ros( CFF_Face face, + const char* *registry, + const char* *ordering, + FT_Int *supplement ) + { + FT_Error error = CFF_Err_Ok; + CFF_Font cff = (CFF_Font)face->extra.data; + + + if ( cff ) + { + CFF_FontRecDict dict = &cff->top_font.font_dict; + FT_Service_PsCMaps psnames = (FT_Service_PsCMaps)cff->psnames; + + + if ( dict->cid_registry == 0xFFFFU ) + { + error = CFF_Err_Invalid_Argument; + goto Fail; + } + + if ( registry ) + { + if ( cff->registry == NULL ) + cff->registry = cff_index_get_sid_string( &cff->string_index, + dict->cid_registry, + psnames ); + *registry = cff->registry; + } + + if ( ordering ) + { + if ( cff->ordering == NULL ) + cff->ordering = cff_index_get_sid_string( &cff->string_index, + dict->cid_ordering, + psnames ); + *ordering = cff->ordering; + } + + if ( supplement ) + *supplement = dict->cid_supplement; + } + + Fail: + return error; + } + + + static const FT_Service_CIDRec cff_service_cid_info = + { + (FT_CID_GetRegistryOrderingSupplementFunc)cff_get_ros + }; + + /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ @@ -411,12 +520,14 @@ static const FT_ServiceDescRec cff_services[] = { - { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF }, - { FT_SERVICE_ID_POSTSCRIPT_INFO, &cff_service_ps_info }, + { FT_SERVICE_ID_XF86_NAME, FT_XF86_FORMAT_CFF }, + { FT_SERVICE_ID_POSTSCRIPT_INFO, &cff_service_ps_info }, + { FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &cff_service_ps_name }, #ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES - { FT_SERVICE_ID_GLYPH_DICT, &cff_service_glyph_dict }, + { FT_SERVICE_ID_GLYPH_DICT, &cff_service_glyph_dict }, #endif - { FT_SERVICE_ID_TT_CMAP, &cff_service_get_cmap_info }, + { FT_SERVICE_ID_TT_CMAP, &cff_service_get_cmap_info }, + { FT_SERVICE_ID_CID, &cff_service_cid_info }, { NULL, NULL } }; @@ -484,7 +595,7 @@ cff_get_kerning, 0, /* FT_Face_AttachFunc */ - 0, /* FT_Face_GetAdvancesFunc */ + cff_get_advances, /* FT_Face_GetAdvancesFunc */ cff_size_request, diff --git a/src/cff/cffgload.c b/src/cff/cffgload.c index 0e2a179..3296d12 100644 --- a/src/cff/cffgload.c +++ b/src/cff/cffgload.c @@ -4,7 +4,7 @@ /* */ /* OpenType Glyph Loader (body). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -110,6 +110,9 @@ cff_op_callgsubr, cff_op_return, + cff_op_hsbw, /* Type 1 opcode: invalid but seen in real life */ + cff_op_closepath, /* ditto */ + /* do not remove */ cff_op_max @@ -187,6 +190,9 @@ 1, /* callsubr */ 1, + 0, + + 2, /* hsbw */ 0 }; @@ -222,6 +228,8 @@ /* */ /* glyph :: The current glyph object. */ /* */ + /* hinting :: Whether hinting is active. */ + /* */ static void cff_builder_init( CFF_Builder* builder, TT_Face face, @@ -251,17 +259,14 @@ if ( hinting && size ) { - builder->hints_globals = size->root.internal; + CFF_Internal internal = (CFF_Internal)size->root.internal; + + + builder->hints_globals = (void *)internal->topfont; builder->hints_funcs = glyph->root.internal->glyph_hints; } } - if ( size ) - { - builder->scale_x = size->root.metrics.x_scale; - builder->scale_y = size->root.metrics.y_scale; - } - builder->pos_x = 0; builder->pos_y = 0; @@ -339,11 +344,15 @@ /* decoder :: A pointer to the glyph builder to initialize. */ /* */ /* <Input> */ - /* face :: The current face object. */ + /* face :: The current face object. */ /* */ - /* size :: The current size object. */ + /* size :: The current size object. */ /* */ - /* slot :: The current glyph object. */ + /* slot :: The current glyph object. */ + /* */ + /* hinting :: Whether hinting is active. */ + /* */ + /* hint_mode :: The hinting mode. */ /* */ FT_LOCAL_DEF( void ) cff_decoder_init( CFF_Decoder* decoder, @@ -370,19 +379,27 @@ decoder->hint_mode = hint_mode; } + FT_LOCAL_DEF( void ) + cff_decoder_set_width_only( CFF_Decoder* decoder ) + { + decoder->width_only = 1; + } - /* this function is used to select the locals subrs array */ + /* this function is used to select the subfont */ + /* and the locals subrs array */ FT_LOCAL_DEF( FT_Error ) cff_decoder_prepare( CFF_Decoder* decoder, + CFF_Size size, FT_UInt glyph_index ) { - CFF_Font cff = (CFF_Font)decoder->builder.face->extra.data; - CFF_SubFont sub = &cff->top_font; - FT_Error error = CFF_Err_Ok; + CFF_Builder *builder = &decoder->builder; + CFF_Font cff = (CFF_Font)builder->face->extra.data; + CFF_SubFont sub = &cff->top_font; + FT_Error error = CFF_Err_Ok; /* manage CID fonts */ - if ( cff->num_subfonts >= 1 ) + if ( cff->num_subfonts ) { FT_Byte fd_index = cff_fd_select_get( &cff->fd_select, glyph_index ); @@ -393,8 +410,16 @@ error = CFF_Err_Invalid_File_Format; goto Exit; } - + sub = cff->subfonts[fd_index]; + if ( builder->hints_funcs ) + { + CFF_Internal internal = (CFF_Internal)size->root.internal; + + + /* for CFFs without subfonts, this value has already been set */ + builder->hints_globals = (void *)internal->subfonts[fd_index]; + } } decoder->num_locals = sub->num_local_subrs; @@ -954,6 +979,9 @@ case 8: op = cff_op_rrcurveto; break; + case 9: + op = cff_op_closepath; + break; case 10: op = cff_op_callsubr; break; @@ -1055,6 +1083,9 @@ } } break; + case 13: + op = cff_op_hsbw; + break; case 14: op = cff_op_endchar; break; @@ -1158,6 +1189,12 @@ decoder->glyph_width = decoder->nominal_width + ( stack[0] >> 16 ); + if (decoder->width_only) + { + /* we only want the advance width, stop here */ + break; + } + /* Consumed an argument. */ num_args--; args++; @@ -1168,7 +1205,7 @@ req_args = 0; } - req_args &= 15; + req_args &= 0x000F; if ( num_args < req_args ) goto Stack_Underflow; args -= req_args; @@ -2022,6 +2059,30 @@ FT_TRACE4(( " dotsection" )); break; + case cff_op_closepath: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " closepath (invalid op)" )); + + args = stack; + break; + + case cff_op_hsbw: + /* this is an invalid Type 2 operator; however, there */ + /* exist fonts which are incorrectly converted from probably */ + /* Type 1 to CFF, and some parsers seem to accept it */ + + FT_TRACE4(( " hsbw (invalid op)" )); + + decoder->glyph_width = decoder->nominal_width + + (args[1] >> 16); + x = args[0]; + y = 0; + args = stack; + break; + case cff_op_and: { FT_Fixed cond = args[0] && args[1]; @@ -2260,7 +2321,7 @@ &charstring, &charstring_len ); if ( !error ) { - error = cff_decoder_prepare( &decoder, glyph_index ); + error = cff_decoder_prepare( &decoder, size, glyph_index ); if ( !error ) error = cff_decoder_parse_charstrings( &decoder, charstring, @@ -2291,18 +2352,19 @@ FT_Error error; CFF_Decoder decoder; TT_Face face = (TT_Face)glyph->root.face; - FT_Bool hinting; + FT_Bool hinting, force_scaling; CFF_Font cff = (CFF_Font)face->extra.data; FT_Matrix font_matrix; FT_Vector font_offset; + force_scaling = FALSE; /* in a CID-keyed font, consider `glyph_index' as a CID and map */ /* it immediately to the real glyph_index -- if it isn't a */ /* subsetted font, glyph_indices and CIDs are identical, though */ if ( cff->top_font.font_dict.cid_registry != 0xFFFFU && - cff->charset.cids ) + cff->charset.cids ) { glyph_index = cff_charset_cid_to_gindex( &cff->charset, glyph_index ); if ( glyph_index == 0 ) @@ -2389,6 +2451,36 @@ if ( load_flags & FT_LOAD_SBITS_ONLY ) return CFF_Err_Invalid_Argument; + /* if we have a CID subfont, use its matrix (which has already */ + /* been multiplied with the root matrix) */ + + /* this scaling is only relevant if the PS hinter isn't active */ + if ( cff->num_subfonts ) + { + FT_Byte fd_index = cff_fd_select_get( &cff->fd_select, + glyph_index ); + + FT_Int top_upm = cff->top_font.font_dict.units_per_em; + FT_Int sub_upm = cff->subfonts[fd_index]->font_dict.units_per_em; + + + font_matrix = cff->subfonts[fd_index]->font_dict.font_matrix; + font_offset = cff->subfonts[fd_index]->font_dict.font_offset; + + if ( top_upm != sub_upm ) + { + glyph->x_scale = FT_MulDiv( glyph->x_scale, top_upm, sub_upm ); + glyph->y_scale = FT_MulDiv( glyph->y_scale, top_upm, sub_upm ); + + force_scaling = TRUE; + } + } + else + { + font_matrix = cff->top_font.font_dict.font_matrix; + font_offset = cff->top_font.font_dict.font_offset; + } + glyph->root.outline.n_points = 0; glyph->root.outline.n_contours = 0; @@ -2405,6 +2497,9 @@ cff_decoder_init( &decoder, face, size, glyph, hinting, FT_LOAD_TARGET_MODE( load_flags ) ); + if ((load_flags & FT_LOAD_ADVANCE_ONLY) != 0) + cff_decoder_set_width_only( &decoder ); + decoder.builder.no_recurse = (FT_Bool)( ( load_flags & FT_LOAD_NO_RECURSE ) != 0 ); @@ -2413,7 +2508,7 @@ &charstring, &charstring_len ); if ( !error ) { - error = cff_decoder_prepare( &decoder, glyph_index ); + error = cff_decoder_prepare( &decoder, size, glyph_index ); if ( !error ) { error = cff_decoder_parse_charstrings( &decoder, @@ -2481,21 +2576,6 @@ if ( !error ) { - if ( cff->num_subfonts >= 1 ) - { - FT_Byte fd_index = cff_fd_select_get( &cff->fd_select, - glyph_index ); - - - font_matrix = cff->subfonts[fd_index]->font_dict.font_matrix; - font_offset = cff->subfonts[fd_index]->font_dict.font_offset; - } - else - { - font_matrix = cff->top_font.font_dict.font_matrix; - font_offset = cff->top_font.font_dict.font_offset; - } - /* Now, set the metrics -- this is rather simple, as */ /* the left side bearing is the xMin, and the top side */ /* bearing the yMax. */ @@ -2565,9 +2645,8 @@ glyph->root.outline.flags |= FT_OUTLINE_REVERSE_FILL; - /* apply the font matrix */ - if ( !( font_matrix.xx == 0x10000L && - font_matrix.yy == 0x10000L && + /* apply the font matrix -- `xx' has already been normalized */ + if ( !( font_matrix.yy == 0x10000L && font_matrix.xy == 0 && font_matrix.yx == 0 ) ) FT_Outline_Transform( &glyph->root.outline, &font_matrix ); @@ -2587,7 +2666,7 @@ FT_Vector_Transform( &advance, &font_matrix ); metrics->vertAdvance = advance.y + font_offset.y; - if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 ) + if ( ( load_flags & FT_LOAD_NO_SCALE ) == 0 || force_scaling ) { /* scale the outline and the metrics */ FT_Int n; diff --git a/src/cff/cffgload.h b/src/cff/cffgload.h index f67864a..bf21654 100644 --- a/src/cff/cffgload.h +++ b/src/cff/cffgload.h @@ -4,7 +4,7 @@ /* */ /* OpenType Glyph Loader (specification). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -55,10 +55,6 @@ FT_BEGIN_HEADER /* */ /* last :: The last point position. */ /* */ - /* scale_x :: The horizontal scale (FUnits to sub-pixels). */ - /* */ - /* scale_y :: The vertical scale (FUnits to sub-pixels). */ - /* */ /* pos_x :: The horizontal translation (if composite glyph). */ /* */ /* pos_y :: The vertical translation (if composite glyph). */ @@ -94,9 +90,6 @@ FT_BEGIN_HEADER FT_Vector last; - FT_Fixed scale_x; - FT_Fixed scale_y; - FT_Pos pos_x; FT_Pos pos_y; @@ -146,6 +139,7 @@ FT_BEGIN_HEADER FT_Pos nominal_width; FT_Bool read_width; + FT_Bool width_only; FT_Int num_hints; FT_Fixed* buildchar; FT_Int len_buildchar; @@ -175,8 +169,12 @@ FT_BEGIN_HEADER FT_Bool hinting, FT_Render_Mode hint_mode ); + FT_LOCAL( void ) + cff_decoder_set_width_only( CFF_Decoder* decoder ); + FT_LOCAL( FT_Error ) cff_decoder_prepare( CFF_Decoder* decoder, + CFF_Size size, FT_UInt glyph_index ); #if 0 /* unused until we support pure CFF fonts */ diff --git a/src/cff/cffload.c b/src/cff/cffload.c index dd2f113..9c030cf 100644 --- a/src/cff/cffload.c +++ b/src/cff/cffload.c @@ -175,13 +175,14 @@ 363, 364, 365, 366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376, 377, 378 }; -#endif +#endif /* 1 */ FT_LOCAL_DEF( FT_UShort ) cff_get_standard_encoding( FT_UInt charcode ) { - return (FT_UShort)(charcode < 256 ? cff_standard_encoding[charcode] : 0); + return (FT_UShort)( charcode < 256 ? cff_standard_encoding[charcode] + : 0 ); } @@ -1272,8 +1273,9 @@ top->cid_ordering = 0xFFFFU; top->cid_font_name = 0xFFFFU; - error = cff_index_access_element( idx, font_index, &dict, &dict_len ) || - cff_parser_run( &parser, dict, dict + dict_len ); + error = cff_index_access_element( idx, font_index, &dict, &dict_len ); + if ( !error ) + error = cff_parser_run( &parser, dict, dict + dict_len ); cff_index_forget_element( idx, &dict ); @@ -1590,6 +1592,9 @@ FT_FREE( font->font_info ); } + FT_FREE( font->registry ); + FT_FREE( font->ordering ); + FT_FREE( font->global_subrs ); FT_FREE( font->font_name ); } diff --git a/src/cff/cffobjs.c b/src/cff/cffobjs.c index c02cf33..12997a9 100644 --- a/src/cff/cffobjs.c +++ b/src/cff/cffobjs.c @@ -4,7 +4,7 @@ /* */ /* OpenType objects manager (body). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -56,7 +56,7 @@ cff_size_get_globals_funcs( CFF_Size size ) { CFF_Face face = (CFF_Face)size->root.face; - CFF_Font font = (CFF_FontRec *)face->extra.data; + CFF_Font font = (CFF_Font)face->extra.data; PSHinter_Service pshinter = (PSHinter_Service)font->pshinter; FT_Module module; @@ -72,23 +72,84 @@ FT_LOCAL_DEF( void ) cff_size_done( FT_Size cffsize ) /* CFF_Size */ { - CFF_Size size = (CFF_Size)cffsize; + CFF_Size size = (CFF_Size)cffsize; + CFF_Face face = (CFF_Face)size->root.face; + CFF_Font font = (CFF_Font)face->extra.data; + CFF_Internal internal = (CFF_Internal)cffsize->internal; - if ( cffsize->internal ) + if ( internal ) { PSH_Globals_Funcs funcs; funcs = cff_size_get_globals_funcs( size ); if ( funcs ) - funcs->destroy( (PSH_Globals)cffsize->internal ); + { + FT_UInt i; + + + funcs->destroy( internal->topfont ); - cffsize->internal = 0; + for ( i = font->num_subfonts; i > 0; i-- ) + funcs->destroy( internal->subfonts[i - 1] ); + } + + /* `internal' is freed by destroy_size (in ftobjs.c) */ } } + /* CFF and Type 1 private dictionaries have slightly different */ + /* structures; we need to synthetize a Type 1 dictionary on the fly */ + + static void + cff_make_private_dict( CFF_SubFont subfont, + PS_Private priv ) + { + CFF_Private cpriv = &subfont->private_dict; + FT_UInt n, count; + + + FT_MEM_ZERO( priv, sizeof ( *priv ) ); + + count = priv->num_blue_values = cpriv->num_blue_values; + for ( n = 0; n < count; n++ ) + priv->blue_values[n] = (FT_Short)cpriv->blue_values[n]; + + count = priv->num_other_blues = cpriv->num_other_blues; + for ( n = 0; n < count; n++ ) + priv->other_blues[n] = (FT_Short)cpriv->other_blues[n]; + + count = priv->num_family_blues = cpriv->num_family_blues; + for ( n = 0; n < count; n++ ) + priv->family_blues[n] = (FT_Short)cpriv->family_blues[n]; + + count = priv->num_family_other_blues = cpriv->num_family_other_blues; + for ( n = 0; n < count; n++ ) + priv->family_other_blues[n] = (FT_Short)cpriv->family_other_blues[n]; + + priv->blue_scale = cpriv->blue_scale; + priv->blue_shift = (FT_Int)cpriv->blue_shift; + priv->blue_fuzz = (FT_Int)cpriv->blue_fuzz; + + priv->standard_width[0] = (FT_UShort)cpriv->standard_width; + priv->standard_height[0] = (FT_UShort)cpriv->standard_height; + + count = priv->num_snap_widths = cpriv->num_snap_widths; + for ( n = 0; n < count; n++ ) + priv->snap_widths[n] = (FT_Short)cpriv->snap_widths[n]; + + count = priv->num_snap_heights = cpriv->num_snap_heights; + for ( n = 0; n < count; n++ ) + priv->snap_heights[n] = (FT_Short)cpriv->snap_heights[n]; + + priv->force_bold = cpriv->force_bold; + priv->language_group = cpriv->language_group; + priv->lenIV = cpriv->lenIV; + } + + FT_LOCAL_DEF( FT_Error ) cff_size_init( FT_Size cffsize ) /* CFF_Size */ { @@ -99,68 +160,43 @@ if ( funcs ) { - PSH_Globals globals; - CFF_Face face = (CFF_Face)cffsize->face; - CFF_Font font = (CFF_FontRec *)face->extra.data; - CFF_SubFont subfont = &font->top_font; + CFF_Face face = (CFF_Face)cffsize->face; + CFF_Font font = (CFF_Font)face->extra.data; + CFF_Internal internal; - CFF_Private cpriv = &subfont->private_dict; PS_PrivateRec priv; + FT_Memory memory = cffsize->face->memory; + FT_UInt i; - /* IMPORTANT: The CFF and Type1 private dictionaries have */ - /* slightly different structures; we need to */ - /* synthetize a type1 dictionary on the fly here. */ - - { - FT_UInt n, count; - - - FT_MEM_ZERO( &priv, sizeof ( priv ) ); - - count = priv.num_blue_values = cpriv->num_blue_values; - for ( n = 0; n < count; n++ ) - priv.blue_values[n] = (FT_Short)cpriv->blue_values[n]; - - count = priv.num_other_blues = cpriv->num_other_blues; - for ( n = 0; n < count; n++ ) - priv.other_blues[n] = (FT_Short)cpriv->other_blues[n]; - count = priv.num_family_blues = cpriv->num_family_blues; - for ( n = 0; n < count; n++ ) - priv.family_blues[n] = (FT_Short)cpriv->family_blues[n]; - - count = priv.num_family_other_blues = cpriv->num_family_other_blues; - for ( n = 0; n < count; n++ ) - priv.family_other_blues[n] = (FT_Short)cpriv->family_other_blues[n]; - - priv.blue_scale = cpriv->blue_scale; - priv.blue_shift = (FT_Int)cpriv->blue_shift; - priv.blue_fuzz = (FT_Int)cpriv->blue_fuzz; + if ( FT_NEW( internal ) ) + goto Exit; - priv.standard_width[0] = (FT_UShort)cpriv->standard_width; - priv.standard_height[0] = (FT_UShort)cpriv->standard_height; + cff_make_private_dict( &font->top_font, &priv ); + error = funcs->create( cffsize->face->memory, &priv, + &internal->topfont ); + if ( error ) + goto Exit; - count = priv.num_snap_widths = cpriv->num_snap_widths; - for ( n = 0; n < count; n++ ) - priv.snap_widths[n] = (FT_Short)cpriv->snap_widths[n]; + for ( i = font->num_subfonts; i > 0; i-- ) + { + CFF_SubFont sub = font->subfonts[i - 1]; - count = priv.num_snap_heights = cpriv->num_snap_heights; - for ( n = 0; n < count; n++ ) - priv.snap_heights[n] = (FT_Short)cpriv->snap_heights[n]; - priv.force_bold = cpriv->force_bold; - priv.language_group = cpriv->language_group; - priv.lenIV = cpriv->lenIV; + cff_make_private_dict( sub, &priv ); + error = funcs->create( cffsize->face->memory, &priv, + &internal->subfonts[i - 1] ); + if ( error ) + goto Exit; } - error = funcs->create( cffsize->face->memory, &priv, &globals ); - if ( !error ) - cffsize->internal = (FT_Size_Internal)(void*)globals; + cffsize->internal = (FT_Size_Internal)(void*)internal; } size->strike_index = 0xFFFFFFFFUL; + Exit: return error; } @@ -182,11 +218,42 @@ funcs = cff_size_get_globals_funcs( cffsize ); if ( funcs ) - funcs->set_scale( (PSH_Globals)size->internal, - size->metrics.x_scale, - size->metrics.y_scale, + { + CFF_Face face = (CFF_Face)size->face; + CFF_Font font = (CFF_Font)face->extra.data; + CFF_Internal internal = (CFF_Internal)size->internal; + + FT_Int top_upm = font->top_font.font_dict.units_per_em; + FT_UInt i; + + + funcs->set_scale( internal->topfont, + size->metrics.x_scale, size->metrics.y_scale, 0, 0 ); + for ( i = font->num_subfonts; i > 0; i-- ) + { + CFF_SubFont sub = font->subfonts[i - 1]; + FT_Int sub_upm = sub->font_dict.units_per_em; + FT_Pos x_scale, y_scale; + + + if ( top_upm != sub_upm ) + { + x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm ); + y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm ); + } + else + { + x_scale = size->metrics.x_scale; + y_scale = size->metrics.y_scale; + } + + funcs->set_scale( internal->subfonts[i - 1], + x_scale, y_scale, 0, 0 ); + } + } + return CFF_Err_Ok; } @@ -223,11 +290,42 @@ funcs = cff_size_get_globals_funcs( cffsize ); if ( funcs ) - funcs->set_scale( (PSH_Globals)size->internal, - size->metrics.x_scale, - size->metrics.y_scale, + { + CFF_Face cffface = (CFF_Face)size->face; + CFF_Font font = (CFF_Font)cffface->extra.data; + CFF_Internal internal = (CFF_Internal)size->internal; + + FT_Int top_upm = font->top_font.font_dict.units_per_em; + FT_UInt i; + + + funcs->set_scale( internal->topfont, + size->metrics.x_scale, size->metrics.y_scale, 0, 0 ); + for ( i = font->num_subfonts; i > 0; i-- ) + { + CFF_SubFont sub = font->subfonts[i - 1]; + FT_Int sub_upm = sub->font_dict.units_per_em; + FT_Pos x_scale, y_scale; + + + if ( top_upm != sub_upm ) + { + x_scale = FT_MulDiv( size->metrics.x_scale, top_upm, sub_upm ); + y_scale = FT_MulDiv( size->metrics.y_scale, top_upm, sub_upm ); + } + else + { + x_scale = size->metrics.x_scale; + y_scale = size->metrics.y_scale; + } + + funcs->set_scale( internal->subfonts[i - 1], + x_scale, y_scale, 0, 0 ); + } + } + return CFF_Err_Ok; } @@ -249,7 +347,7 @@ cff_slot_init( FT_GlyphSlot slot ) { CFF_Face face = (CFF_Face)slot->face; - CFF_Font font = (CFF_FontRec *)face->extra.data; + CFF_Font font = (CFF_Font)face->extra.data; PSHinter_Service pshinter = (PSHinter_Service)font->pshinter; @@ -270,7 +368,7 @@ } } - return 0; + return CFF_Err_Ok; } @@ -288,7 +386,9 @@ FT_String* result; - result = ft_mem_strdup( memory, source, &error ); + (void)FT_STRDUP( result, source ); + + FT_UNUSED( error ); return result; } @@ -444,7 +544,7 @@ /* compute number of glyphs */ if ( dict->cid_registry != 0xFFFFU ) - cffface->num_glyphs = dict->cid_count; + cffface->num_glyphs = cff->charset.max_cid; else cffface->num_glyphs = cff->charstrings_index.count; @@ -617,39 +717,119 @@ dict->units_per_em = face->root.units_per_EM; } - /* handle font matrix settings in subfonts (if any) */ + /* Normalize the font matrix so that `matrix->xx' is 1; the */ + /* scaling is done with `units_per_em' then (at this point, */ + /* it already contains the scaling factor, but without */ + /* normalization of the matrix). */ + /* */ + /* Note that the offsets must be expressed in integer font */ + /* units. */ + + { + FT_Matrix* matrix = &dict->font_matrix; + FT_Vector* offset = &dict->font_offset; + FT_ULong* upm = &dict->units_per_em; + FT_Fixed temp = FT_ABS( matrix->yy ); + + + if ( temp != 0x10000L ) + { + *upm = FT_DivFix( *upm, temp ); + + matrix->xx = FT_DivFix( matrix->xx, temp ); + matrix->yx = FT_DivFix( matrix->yx, temp ); + matrix->xy = FT_DivFix( matrix->xy, temp ); + matrix->yy = FT_DivFix( matrix->yy, temp ); + offset->x = FT_DivFix( offset->x, temp ); + offset->y = FT_DivFix( offset->y, temp ); + } + + offset->x >>= 16; + offset->y >>= 16; + } + for ( i = cff->num_subfonts; i > 0; i-- ) { CFF_FontRecDict sub = &cff->subfonts[i - 1]->font_dict; CFF_FontRecDict top = &cff->top_font.font_dict; + FT_Matrix* matrix; + FT_Vector* offset; + FT_ULong* upm; + FT_Fixed temp; + if ( sub->units_per_em ) { - FT_Matrix scale; + FT_Int scaling; - scale.xx = scale.yy = (FT_Fixed)FT_DivFix( top->units_per_em, - sub->units_per_em ); - scale.xy = scale.yx = 0; - - FT_Matrix_Multiply( &scale, &sub->font_matrix ); - FT_Vector_Transform( &sub->font_offset, &scale ); + if ( top->units_per_em > 1 && sub->units_per_em > 1 ) + scaling = FT_MIN( top->units_per_em, sub->units_per_em ); + else + scaling = 1; + + FT_Matrix_Multiply_Scaled( &top->font_matrix, + &sub->font_matrix, + scaling ); + FT_Vector_Transform_Scaled( &sub->font_offset, + &top->font_matrix, + scaling ); + + sub->units_per_em = FT_MulDiv( sub->units_per_em, + top->units_per_em, + scaling ); } else { sub->font_matrix = top->font_matrix; sub->font_offset = top->font_offset; + + sub->units_per_em = top->units_per_em; } + + matrix = &sub->font_matrix; + offset = &sub->font_offset; + upm = &sub->units_per_em; + temp = FT_ABS( matrix->yy ); + + if ( temp != 0x10000L ) + { + *upm = FT_DivFix( *upm, temp ); + + /* if *upm is larger than 100*1000 we divide by 1000 -- */ + /* this can happen if e.g. there is no top-font FontMatrix */ + /* and the subfont FontMatrix already contains the complete */ + /* scaling for the subfont (see section 5.11 of the PLRM) */ + + /* 100 is a heuristic value */ + + if ( *upm > 100L * 1000L ) + *upm = ( *upm + 500 ) / 1000; + + matrix->xx = FT_DivFix( matrix->xx, temp ); + matrix->yx = FT_DivFix( matrix->yx, temp ); + matrix->xy = FT_DivFix( matrix->xy, temp ); + matrix->yy = FT_DivFix( matrix->yy, temp ); + offset->x = FT_DivFix( offset->x, temp ); + offset->y = FT_DivFix( offset->y, temp ); + } + + offset->x >>= 16; + offset->y >>= 16; } #ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES /* CID-keyed CFF fonts don't have glyph names -- the SFNT loader */ - /* has unset this flag because of the 3.0 `post' table */ + /* has unset this flag because of the 3.0 `post' table. */ if ( dict->cid_registry == 0xFFFFU ) cffface->face_flags |= FT_FACE_FLAG_GLYPH_NAMES; #endif + if ( dict->cid_registry != 0xFFFFU ) + cffface->face_flags |= FT_FACE_FLAG_CID_KEYED; + + /*******************************************************************/ /* */ /* Compute char maps. */ @@ -683,7 +863,7 @@ if ( pure_cff && cff->top_font.font_dict.cid_registry != 0xFFFFU ) goto Exit; - /* we didn't find a Unicode charmap -- synthetize one */ + /* we didn't find a Unicode charmap -- synthesize one */ cmaprec.face = cffface; cmaprec.platform_id = 3; cmaprec.encoding_id = 1; diff --git a/src/cff/cffobjs.h b/src/cff/cffobjs.h index f18b5d9..3c81cee 100644 --- a/src/cff/cffobjs.h +++ b/src/cff/cffobjs.h @@ -4,7 +4,7 @@ /* */ /* OpenType objects manager (specification). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2006, 2007, 2008 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -25,6 +25,7 @@ #include "cfftypes.h" #include FT_INTERNAL_TRUETYPE_TYPES_H #include FT_SERVICE_POSTSCRIPT_CMAPS_H +#include FT_INTERNAL_POSTSCRIPT_HINTS_H FT_BEGIN_HEADER @@ -53,8 +54,8 @@ FT_BEGIN_HEADER /* */ typedef struct CFF_SizeRec_ { - FT_SizeRec root; - FT_ULong strike_index; /* 0xFFFFFFFF to indicate invalid */ + FT_SizeRec root; + FT_ULong strike_index; /* 0xFFFFFFFF to indicate invalid */ } CFF_SizeRec, *CFF_Size; @@ -80,6 +81,21 @@ FT_BEGIN_HEADER } CFF_GlyphSlotRec, *CFF_GlyphSlot; + /*************************************************************************/ + /* */ + /* <Type> */ + /* CFF_Internal */ + /* */ + /* <Description> */ + /* The interface to the `internal' field of `FT_Size'. */ + /* */ + typedef struct CFF_InternalRec_ + { + PSH_Globals topfont; + PSH_Globals subfonts[CFF_MAX_CID_FONTS]; + + } CFF_InternalRec, *CFF_Internal; + /*************************************************************************/ /* */ diff --git a/src/cff/cffparse.c b/src/cff/cffparse.c index 41af6a3..d6d77dd 100644 --- a/src/cff/cffparse.c +++ b/src/cff/cffparse.c @@ -4,7 +4,7 @@ /* */ /* CFF token stream parser (body) */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2004, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2004, 2007, 2008 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -19,6 +19,7 @@ #include <ft2build.h> #include "cffparse.h" #include FT_INTERNAL_STREAM_H +#include FT_INTERNAL_DEBUG_H #include "cfferrs.h" @@ -136,24 +137,51 @@ } + static const FT_Long power_tens[] = + { + 1L, + 10L, + 100L, + 1000L, + 10000L, + 100000L, + 1000000L, + 10000000L, + 100000000L, + 1000000000L + }; + + /* read a real */ static FT_Fixed cff_parse_real( FT_Byte* start, FT_Byte* limit, - FT_Int power_ten ) + FT_Int power_ten, + FT_Int* scaling ) { - FT_Byte* p = start; - FT_Long num, divider, result, exponent; - FT_Int sign = 0, exponent_sign = 0; + FT_Byte* p = start; FT_UInt nib; FT_UInt phase; + FT_Long result, number, rest, exponent; + FT_Int sign = 0, exponent_sign = 0; + FT_Int exponent_add, integer_length, fraction_length; + + + if ( scaling ) + *scaling = 0; + + result = 0; + + number = 0; + rest = 0; + exponent = 0; - result = 0; - num = 0; - divider = 1; + exponent_add = 0; + integer_length = 0; + fraction_length = 0; - /* first of all, read the integer part */ + /* First of all, read the integer part. */ phase = 4; for (;;) @@ -166,7 +194,7 @@ /* Make sure we don't read past the end. */ if ( p >= limit ) - goto Bad; + goto Exit; } /* Get the nibble. */ @@ -178,10 +206,20 @@ else if ( nib > 9 ) break; else - result = result * 10 + nib; + { + /* Increase exponent if we can't add the digit. */ + if ( number >= 0xCCCCCCCL ) + exponent_add++; + /* Skip leading zeros. */ + else if ( nib || number ) + { + integer_length++; + number = number * 10 + nib; + } + } } - /* read decimal part, if any */ + /* Read fraction part, if any. */ if ( nib == 0xa ) for (;;) { @@ -193,7 +231,7 @@ /* Make sure we don't read past the end. */ if ( p >= limit ) - goto Bad; + goto Exit; } /* Get the nibble. */ @@ -202,14 +240,18 @@ if ( nib >= 10 ) break; - if ( divider < 10000000L ) + /* Skip leading zeros if possible. */ + if ( !nib && !number ) + exponent_add--; + /* Only add digit if we don't overflow. */ + else if ( number < 0xCCCCCCCL ) { - num = num * 10 + nib; - divider *= 10; + fraction_length++; + number = number * 10 + nib; } } - /* read exponent, if any */ + /* Read exponent, if any. */ if ( nib == 12 ) { exponent_sign = 1; @@ -218,19 +260,17 @@ if ( nib == 11 ) { - exponent = 0; - for (;;) { - /* If we entered this iteration with phase == 4, we need */ - /* to read a new byte. */ + /* If we entered this iteration with phase == 4, */ + /* we need to read a new byte. */ if ( phase ) { p++; /* Make sure we don't read past the end. */ if ( p >= limit ) - goto Bad; + goto Exit; } /* Get the nibble. */ @@ -240,47 +280,105 @@ break; exponent = exponent * 10 + nib; + + /* Arbitrarily limit exponent. */ + if ( exponent > 1000 ) + goto Exit; } if ( exponent_sign ) exponent = -exponent; - - power_ten += (FT_Int)exponent; } - /* raise to power of ten if needed */ - while ( power_ten > 0 ) + /* We don't check `power_ten' and `exponent_add'. */ + exponent += power_ten + exponent_add; + + if ( scaling ) { - result = result * 10; - num = num * 10; + /* Only use `fraction_length'. */ + fraction_length += integer_length; + exponent += integer_length; - power_ten--; - } + if ( fraction_length <= 5 ) + { + if ( number > 0x7FFFL ) + { + result = FT_DivFix( number, 10 ); + *scaling = exponent - fraction_length + 1; + } + else + { + if ( exponent > 0 ) + { + FT_Int new_fraction_length, shift; - while ( power_ten < 0 ) - { - result = result / 10; - divider = divider * 10; - power_ten++; + /* Make `scaling' as small as possible. */ + new_fraction_length = FT_MIN( exponent, 5 ); + exponent -= new_fraction_length; + shift = new_fraction_length - fraction_length; + + number *= power_tens[shift]; + if ( number > 0x7FFFL ) + { + number /= 10; + exponent += 1; + } + } + else + exponent -= fraction_length; + + result = number << 16; + *scaling = exponent; + } + } + else + { + if ( ( number / power_tens[fraction_length - 5] ) > 0x7FFFL ) + { + result = FT_DivFix( number, power_tens[fraction_length - 4] ); + *scaling = exponent - 4; + } + else + { + result = FT_DivFix( number, power_tens[fraction_length - 5] ); + *scaling = exponent - 5; + } + } } + else + { + integer_length += exponent; + fraction_length -= exponent; + + /* Check for overflow and underflow. */ + if ( FT_ABS( integer_length ) > 5 ) + goto Exit; - /* Move the integer part into the high 16 bits. */ - result <<= 16; + /* Convert into 16.16 format. */ + if ( fraction_length > 0 ) + { + if ( ( number / power_tens[fraction_length] ) > 0x7FFFL ) + goto Exit; + + result = FT_DivFix( number, power_tens[fraction_length] ); + } + else + { + number *= power_tens[-fraction_length]; + + if ( number > 0x7FFFL ) + goto Exit; - /* Place the decimal part into the low 16 bits. */ - if ( num ) - result |= FT_DivFix( num, divider ); + result = number << 16; + } + } if ( sign ) result = -result; Exit: return result; - - Bad: - result = 0; - goto Exit; } @@ -288,8 +386,8 @@ static FT_Long cff_parse_num( FT_Byte** d ) { - return ( **d == 30 ? ( cff_parse_real ( d[0], d[1], 0 ) >> 16 ) - : cff_parse_integer( d[0], d[1] ) ); + return **d == 30 ? ( cff_parse_real( d[0], d[1], 0, NULL ) >> 16 ) + : cff_parse_integer( d[0], d[1] ); } @@ -297,64 +395,121 @@ static FT_Fixed cff_parse_fixed( FT_Byte** d ) { - return ( **d == 30 ? cff_parse_real ( d[0], d[1], 0 ) - : cff_parse_integer( d[0], d[1] ) << 16 ); + return **d == 30 ? cff_parse_real( d[0], d[1], 0, NULL ) + : cff_parse_integer( d[0], d[1] ) << 16; } + /* read a floating point number, either integer or real, */ - /* but return 1000 times the number read in. */ + /* but return `10^scaling' times the number read in */ static FT_Fixed - cff_parse_fixed_thousand( FT_Byte** d ) + cff_parse_fixed_scaled( FT_Byte** d, + FT_Int scaling ) { return **d == - 30 ? cff_parse_real ( d[0], d[1], 3 ) - : (FT_Fixed)FT_MulFix( cff_parse_integer( d[0], d[1] ) << 16, 1000 ); + 30 ? cff_parse_real( d[0], d[1], scaling, NULL ) + : (FT_Fixed)FT_MulFix( cff_parse_integer( d[0], d[1] ) << 16, + power_tens[scaling] ); } + + /* read a floating point number, either integer or real, */ + /* and return it as precise as possible -- `scaling' returns */ + /* the scaling factor (as a power of 10) */ + static FT_Fixed + cff_parse_fixed_dynamic( FT_Byte** d, + FT_Int* scaling ) + { + FT_ASSERT( scaling ); + + if ( **d == 30 ) + return cff_parse_real( d[0], d[1], 0, scaling ); + else + { + FT_Long number; + FT_Int integer_length; + + + number = cff_parse_integer( d[0], d[1] ); + + if ( number > 0x7FFFL ) + { + for ( integer_length = 5; integer_length < 10; integer_length++ ) + if ( number < power_tens[integer_length] ) + break; + + if ( ( number / power_tens[integer_length - 5] ) > 0x7FFFL ) + { + *scaling = integer_length - 4; + return FT_DivFix( number, power_tens[integer_length - 4] ); + } + else + { + *scaling = integer_length - 5; + return FT_DivFix( number, power_tens[integer_length - 5] ); + } + } + else + { + *scaling = 0; + return number << 16; + } + } + } + + static FT_Error cff_parse_font_matrix( CFF_Parser parser ) { CFF_FontRecDict dict = (CFF_FontRecDict)parser->object; FT_Matrix* matrix = &dict->font_matrix; FT_Vector* offset = &dict->font_offset; - FT_UShort* upm = &dict->units_per_em; + FT_ULong* upm = &dict->units_per_em; FT_Byte** data = parser->stack; - FT_Error error; - FT_Fixed temp; + FT_Error error = CFF_Err_Stack_Underflow; - error = CFF_Err_Stack_Underflow; - if ( parser->top >= parser->stack + 6 ) { - matrix->xx = cff_parse_fixed_thousand( data++ ); - matrix->yx = cff_parse_fixed_thousand( data++ ); - matrix->xy = cff_parse_fixed_thousand( data++ ); - matrix->yy = cff_parse_fixed_thousand( data++ ); - offset->x = cff_parse_fixed_thousand( data++ ); - offset->y = cff_parse_fixed_thousand( data ); + FT_Int scaling; - temp = FT_ABS( matrix->yy ); - *upm = (FT_UShort)FT_DivFix( 0x10000L, FT_DivFix( temp, 1000 ) ); + error = CFF_Err_Ok; - if ( temp != 0x10000L ) + /* We expect a well-formed font matrix, this is, the matrix elements */ + /* `xx' and `yy' are of approximately the same magnitude. To avoid */ + /* loss of precision, we use the magnitude of element `xx' to scale */ + /* all other elements. The scaling factor is then contained in the */ + /* `units_per_em' value. */ + + matrix->xx = cff_parse_fixed_dynamic( data++, &scaling ); + + scaling = -scaling; + + if ( scaling < 0 || scaling > 9 ) { - matrix->xx = FT_DivFix( matrix->xx, temp ); - matrix->yx = FT_DivFix( matrix->yx, temp ); - matrix->xy = FT_DivFix( matrix->xy, temp ); - matrix->yy = FT_DivFix( matrix->yy, temp ); - offset->x = FT_DivFix( offset->x, temp ); - offset->y = FT_DivFix( offset->y, temp ); + /* Return default matrix in case of unlikely values. */ + matrix->xx = 0x10000L; + matrix->yx = 0; + matrix->yx = 0; + matrix->yy = 0x10000L; + offset->x = 0; + offset->y = 0; + *upm = 1; + + goto Exit; } - /* note that the offsets must be expressed in integer font units */ - offset->x >>= 16; - offset->y >>= 16; + matrix->yx = cff_parse_fixed_scaled( data++, scaling ); + matrix->xy = cff_parse_fixed_scaled( data++, scaling ); + matrix->yy = cff_parse_fixed_scaled( data++, scaling ); + offset->x = cff_parse_fixed_scaled( data++, scaling ); + offset->y = cff_parse_fixed_scaled( data, scaling ); - error = CFF_Err_Ok; + *upm = power_tens[scaling]; } + Exit: return error; } @@ -585,7 +740,7 @@ goto Store_Number; case cff_kind_fixed_thousand: - val = cff_parse_fixed_thousand( parser->stack ); + val = cff_parse_fixed_scaled( parser->stack, 3 ); Store_Number: switch ( field->size ) diff --git a/src/cff/cfftypes.h b/src/cff/cfftypes.h index 306e5aa..546ea3b 100644 --- a/src/cff/cfftypes.h +++ b/src/cff/cfftypes.h @@ -5,7 +5,7 @@ /* Basic OpenType/CFF type definitions and interface (specification */ /* only). */ /* */ -/* Copyright 1996-2001, 2002, 2003, 2006, 2007 by */ +/* Copyright 1996-2001, 2002, 2003, 2006, 2007, 2008 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -114,7 +114,7 @@ FT_BEGIN_HEADER FT_Int paint_type; FT_Int charstring_type; FT_Matrix font_matrix; - FT_UShort units_per_em; + FT_ULong units_per_em; /* temporarily used as scaling value also */ FT_Vector font_offset; FT_ULong unique_id; FT_BBox font_bbox; @@ -259,6 +259,10 @@ FT_BEGIN_HEADER /* since version 2.3.0 */ PS_FontInfoRec* font_info; /* font info dictionary */ + /* since version 2.3.6 */ + FT_String* registry; + FT_String* ordering; + } CFF_FontRec, *CFF_Font; diff --git a/src/cff/module.mk b/src/cff/module.mk deleted file mode 100644 index 0474e37..0000000 --- a/src/cff/module.mk +++ /dev/null @@ -1,23 +0,0 @@ -# -# FreeType 2 CFF module definition -# - - -# Copyright 1996-2000, 2006 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. - - -FTMODULE_H_COMMANDS += CFF_DRIVER - -define CFF_DRIVER -$(OPEN_DRIVER)cff_driver_class$(CLOSE_DRIVER) -$(ECHO_DRIVER)cff $(ECHO_DRIVER_DESC)OpenType fonts with extension *.otf$(ECHO_DRIVER_DONE) -endef - -# EOF diff --git a/src/cff/rules.mk b/src/cff/rules.mk deleted file mode 100644 index 4100c80..0000000 --- a/src/cff/rules.mk +++ /dev/null @@ -1,72 +0,0 @@ -# -# FreeType 2 OpenType/CFF driver configuration rules -# - - -# Copyright 1996-2000, 2001, 2003 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. - - -# OpenType driver directory -# -CFF_DIR := $(SRC_DIR)/cff - - -CFF_COMPILE := $(FT_COMPILE) $I$(subst /,$(COMPILER_SEP),$(CFF_DIR)) - - -# CFF driver sources (i.e., C files) -# -CFF_DRV_SRC := $(CFF_DIR)/cffobjs.c \ - $(CFF_DIR)/cffload.c \ - $(CFF_DIR)/cffgload.c \ - $(CFF_DIR)/cffparse.c \ - $(CFF_DIR)/cffcmap.c \ - $(CFF_DIR)/cffdrivr.c - -# CFF driver headers -# -CFF_DRV_H := $(CFF_DRV_SRC:%.c=%.h) \ - $(CFF_DIR)/cfftoken.h \ - $(CFF_DIR)/cfftypes.h \ - $(CFF_DIR)/cfferrs.h - - -# CFF driver object(s) -# -# CFF_DRV_OBJ_M is used during `multi' builds -# CFF_DRV_OBJ_S is used during `single' builds -# -CFF_DRV_OBJ_M := $(CFF_DRV_SRC:$(CFF_DIR)/%.c=$(OBJ_DIR)/%.$O) -CFF_DRV_OBJ_S := $(OBJ_DIR)/cff.$O - -# CFF driver source file for single build -# -CFF_DRV_SRC_S := $(CFF_DIR)/cff.c - - -# CFF driver - single object -# -$(CFF_DRV_OBJ_S): $(CFF_DRV_SRC_S) $(CFF_DRV_SRC) $(FREETYPE_H) $(CFF_DRV_H) - $(CFF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(CFF_DRV_SRC_S)) - - -# CFF driver - multiple objects -# -$(OBJ_DIR)/%.$O: $(CFF_DIR)/%.c $(FREETYPE_H) $(CFF_DRV_H) - $(CFF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<) - - -# update main driver object lists -# -DRV_OBJS_S += $(CFF_DRV_OBJ_S) -DRV_OBJS_M += $(CFF_DRV_OBJ_M) - - -# EOF |