diff options
author | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2023-06-24 23:23:54 +0000 |
---|---|---|
committer | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2023-06-24 23:23:54 +0000 |
commit | 3fed8e215415fdfc865acc39c39dbc4666b60e74 (patch) | |
tree | 7a05a1eafbe52abc3eea6b1d594ef5a797e5346a /Build/source/libs/freetype2/freetype-src/src/cid | |
parent | 26b39aa87a9ac83dab1e9b770125dc3defd9a405 (diff) |
freetype 2.13.1
git-svn-id: svn://tug.org/texlive/trunk@67463 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/freetype2/freetype-src/src/cid')
6 files changed, 235 insertions, 92 deletions
diff --git a/Build/source/libs/freetype2/freetype-src/src/cid/cidgload.c b/Build/source/libs/freetype2/freetype-src/src/cid/cidgload.c index ba4b7565d54..eaca765ad06 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cid/cidgload.c +++ b/Build/source/libs/freetype2/freetype-src/src/cid/cidgload.c @@ -40,6 +40,117 @@ #define FT_COMPONENT cidgload + /* + * A helper function to compute FD number (`fd_select`), the offset to the + * head of the glyph data (`off1`), and the offset to the and of the glyph + * data (`off2`). + * + * The number how many times `cid_get_offset` is invoked can be controlled + * by the number of non-NULL arguments. If `fd_select` is non-NULL but + * `off1` and `off2` are NULL, `cid_get_offset` is invoked only for + * `fd_select`; `off1` and `off2` are not validated. + * + */ + FT_LOCAL_DEF( FT_Error ) + cid_compute_fd_and_offsets( CID_Face face, + FT_UInt glyph_index, + FT_ULong* fd_select_p, + FT_ULong* off1_p, + FT_ULong* off2_p ) + { + FT_Error error = FT_Err_Ok; + + CID_FaceInfo cid = &face->cid; + FT_Stream stream = face->cid_stream; + FT_UInt entry_len = cid->fd_bytes + cid->gd_bytes; + + FT_Byte* p; + FT_Bool need_frame_exit = 0; + FT_ULong fd_select, off1, off2; + + + /* For ordinary fonts, read the CID font dictionary index */ + /* and charstring offset from the CIDMap. */ + + if ( FT_STREAM_SEEK( cid->data_offset + cid->cidmap_offset + + glyph_index * entry_len ) || + FT_FRAME_ENTER( 2 * entry_len ) ) + goto Exit; + + need_frame_exit = 1; + + p = (FT_Byte*)stream->cursor; + fd_select = cid_get_offset( &p, cid->fd_bytes ); + off1 = cid_get_offset( &p, cid->gd_bytes ); + + p += cid->fd_bytes; + off2 = cid_get_offset( &p, cid->gd_bytes ); + + if ( fd_select_p ) + *fd_select_p = fd_select; + if ( off1_p ) + *off1_p = off1; + if ( off2_p ) + *off2_p = off2; + + if ( fd_select >= cid->num_dicts ) + { + /* + * fd_select == 0xFF is often used to indicate that the CID + * has no charstring to be rendered, similar to GID = 0xFFFF + * in TrueType fonts. + */ + if ( ( cid->fd_bytes == 1 && fd_select == 0xFFU ) || + ( cid->fd_bytes == 2 && fd_select == 0xFFFFU ) ) + { + FT_TRACE1(( "cid_load_glyph: fail for glyph index %d:\n", + glyph_index )); + FT_TRACE1(( " FD number %ld is the maximum\n", + fd_select )); + FT_TRACE1(( " integer fitting into %d byte%s\n", + cid->fd_bytes, cid->fd_bytes == 1 ? "" : "s" )); + } + else + { + FT_TRACE0(( "cid_load_glyph: fail for glyph index %d:\n", + glyph_index )); + FT_TRACE0(( " FD number %ld is larger\n", + fd_select )); + FT_TRACE0(( " than number of dictionaries (%d)\n", + cid->num_dicts )); + } + + error = FT_THROW( Invalid_Offset ); + goto Exit; + } + else if ( off2 > stream->size ) + { + FT_TRACE0(( "cid_load_glyph: fail for glyph index %d:\n", + glyph_index )); + FT_TRACE0(( " end of the glyph data\n" )); + FT_TRACE0(( " is beyond the data stream\n" )); + + error = FT_THROW( Invalid_Offset ); + goto Exit; + } + else if ( off1 > off2 ) + { + FT_TRACE0(( "cid_load_glyph: fail for glyph index %d:\n", + glyph_index )); + FT_TRACE0(( " the end position of glyph data\n" )); + FT_TRACE0(( " is set before the start position\n" )); + + error = FT_THROW( Invalid_Offset ); + } + + Exit: + if ( need_frame_exit ) + FT_FRAME_EXIT(); + + return error; + } + + FT_CALLBACK_DEF( FT_Error ) cid_load_glyph( T1_Decoder decoder, FT_UInt glyph_index ) @@ -97,34 +208,14 @@ else #endif /* FT_CONFIG_OPTION_INCREMENTAL */ - - /* For ordinary fonts read the CID font dictionary index */ - /* and charstring offset from the CIDMap. */ { - FT_UInt entry_len = cid->fd_bytes + cid->gd_bytes; FT_ULong off1, off2; - if ( FT_STREAM_SEEK( cid->data_offset + cid->cidmap_offset + - glyph_index * entry_len ) || - FT_FRAME_ENTER( 2 * entry_len ) ) - goto Exit; - - p = (FT_Byte*)stream->cursor; - fd_select = cid_get_offset( &p, cid->fd_bytes ); - off1 = cid_get_offset( &p, cid->gd_bytes ); - p += cid->fd_bytes; - off2 = cid_get_offset( &p, cid->gd_bytes ); - FT_FRAME_EXIT(); - - if ( fd_select >= cid->num_dicts || - off2 > stream->size || - off1 > off2 ) - { - FT_TRACE0(( "cid_load_glyph: invalid glyph stream offsets\n" )); - error = FT_THROW( Invalid_Offset ); + error = cid_compute_fd_and_offsets( face, glyph_index, + &fd_select, &off1, &off2 ); + if ( error ) goto Exit; - } glyph_length = off2 - off1; @@ -161,7 +252,9 @@ cs_offset = decoder->lenIV >= 0 ? (FT_UInt)decoder->lenIV : 0; if ( cs_offset > glyph_length ) { - FT_TRACE0(( "cid_load_glyph: invalid glyph stream offsets\n" )); + FT_TRACE0(( "cid_load_glyph: fail for glyph_index=%d, " + "offset to the charstring is beyond glyph length\n", + glyph_index )); error = FT_THROW( Invalid_Offset ); goto Exit; } diff --git a/Build/source/libs/freetype2/freetype-src/src/cid/cidgload.h b/Build/source/libs/freetype2/freetype-src/src/cid/cidgload.h index 97954d418ff..edd6229234c 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cid/cidgload.h +++ b/Build/source/libs/freetype2/freetype-src/src/cid/cidgload.h @@ -42,6 +42,14 @@ FT_BEGIN_HEADER FT_Int32 load_flags ); + FT_LOCAL( FT_Error ) + cid_compute_fd_and_offsets( CID_Face face, + FT_UInt glyph_index, + FT_ULong* fd_select_p, + FT_ULong* off1_p, + FT_ULong* off2_p ); + + FT_END_HEADER #endif /* CIDGLOAD_H_ */ diff --git a/Build/source/libs/freetype2/freetype-src/src/cid/cidload.c b/Build/source/libs/freetype2/freetype-src/src/cid/cidload.c index 26daa5da7f6..a7da8ea39d5 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cid/cidload.c +++ b/Build/source/libs/freetype2/freetype-src/src/cid/cidload.c @@ -155,23 +155,24 @@ FT_CALLBACK_DEF( void ) - cid_parse_font_matrix( CID_Face face, - CID_Parser* parser ) + cid_parse_font_matrix( FT_Face face, /* CID_Face */ + void* parser_ ) { + CID_Face cidface = (CID_Face)face; + CID_Parser* parser = (CID_Parser*)parser_; CID_FaceDict dict; - FT_Face root = (FT_Face)&face->root; FT_Fixed temp[6]; FT_Fixed temp_scale; - if ( parser->num_dict < face->cid.num_dicts ) + if ( parser->num_dict < cidface->cid.num_dicts ) { FT_Matrix* matrix; FT_Vector* offset; FT_Int result; - dict = face->cid.font_dicts + parser->num_dict; + dict = cidface->cid.font_dicts + parser->num_dict; matrix = &dict->font_matrix; offset = &dict->font_offset; @@ -204,7 +205,7 @@ if ( temp_scale != 0x10000L ) { /* set units per EM based on FontMatrix values */ - root->units_per_EM = (FT_UShort)FT_DivFix( 1000, temp_scale ); + face->units_per_EM = (FT_UShort)FT_DivFix( 1000, temp_scale ); temp[0] = FT_DivFix( temp[0], temp_scale ); temp[1] = FT_DivFix( temp[1], temp_scale ); @@ -237,13 +238,15 @@ FT_CALLBACK_DEF( void ) - parse_fd_array( CID_Face face, - CID_Parser* parser ) + parse_fd_array( FT_Face face, /* CID_Face */ + void* parser_ ) { - CID_FaceInfo cid = &face->cid; - FT_Memory memory = face->root.memory; - FT_Stream stream = parser->stream; - FT_Error error = FT_Err_Ok; + CID_Face cidface = (CID_Face)face; + CID_Parser* parser = (CID_Parser*)parser_; + CID_FaceInfo cid = &cidface->cid; + FT_Memory memory = FT_FACE_MEMORY( face ); + FT_Stream stream = parser->stream; + FT_Error error = FT_Err_Ok; FT_Long num_dicts, max_dicts; @@ -313,18 +316,20 @@ /* By mistake, `expansion_factor' appears both in PS_PrivateRec */ /* and CID_FaceDictRec (both are public header files and can't */ - /* changed). We simply copy the value. */ + /* be thus changed). We simply copy the value. */ FT_CALLBACK_DEF( void ) - parse_expansion_factor( CID_Face face, - CID_Parser* parser ) + parse_expansion_factor( FT_Face face, /* CID_Face */ + void* parser_ ) { + CID_Face cidface = (CID_Face)face; + CID_Parser* parser = (CID_Parser*)parser_; CID_FaceDict dict; - if ( parser->num_dict < face->cid.num_dicts ) + if ( parser->num_dict < cidface->cid.num_dicts ) { - dict = face->cid.font_dicts + parser->num_dict; + dict = cidface->cid.font_dicts + parser->num_dict; dict->expansion_factor = cid_parser_to_fixed( parser, 0 ); dict->private_dict.expansion_factor = dict->expansion_factor; @@ -341,11 +346,15 @@ /* to catch it for producing better trace output. */ FT_CALLBACK_DEF( void ) - parse_font_name( CID_Face face, - CID_Parser* parser ) + parse_font_name( FT_Face face, /* CID_Face */ + void* parser_ ) { #ifdef FT_DEBUG_LEVEL_TRACE - if ( parser->num_dict < face->cid.num_dicts ) + CID_Face cidface = (CID_Face)face; + CID_Parser* parser = (CID_Parser*)parser_; + + + if ( parser->num_dict < cidface->cid.num_dicts ) { T1_TokenRec token; FT_UInt len; @@ -361,7 +370,7 @@ } #else FT_UNUSED( face ); - FT_UNUSED( parser ); + FT_UNUSED( parser_ ); #endif return; diff --git a/Build/source/libs/freetype2/freetype-src/src/cid/cidobjs.c b/Build/source/libs/freetype2/freetype-src/src/cid/cidobjs.c index 06b2139a93d..f698a419289 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cid/cidobjs.c +++ b/Build/source/libs/freetype2/freetype-src/src/cid/cidobjs.c @@ -69,8 +69,7 @@ FT_Module module; - module = FT_Get_Module( slot->face->driver->root.library, - "pshinter" ); + module = FT_Get_Module( slot->library, "pshinter" ); if ( module ) { T1_Hints_Funcs funcs; @@ -268,7 +267,8 @@ * * @Input: * stream :: - * The source font stream. + * Dummy argument for compatibility with the `FT_Face_InitFunc` API. + * Ignored. The stream should be passed through `face->root.stream`. * * face_index :: * The index of the font face in the resource. @@ -375,6 +375,14 @@ if ( info->is_fixed_pitch ) cidface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; + /* + * For the sfnt-wrapped CID fonts for MacOS, currently, + * its `cmap' tables are ignored, and the content in + * its `CID ' table is treated the same as naked CID-keyed + * font. See ft_lookup_PS_in_sfnt_stream(). + */ + cidface->face_flags |= FT_FACE_FLAG_CID_KEYED; + /* XXX: TODO: add kerning with .afm support */ /* get style name -- be careful, some broken fonts only */ diff --git a/Build/source/libs/freetype2/freetype-src/src/cid/cidparse.c b/Build/source/libs/freetype2/freetype-src/src/cid/cidparse.c index 16889db9b6f..171a886215a 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cid/cidparse.c +++ b/Build/source/libs/freetype2/freetype-src/src/cid/cidparse.c @@ -214,18 +214,24 @@ cur <= limit - STARTDATA_LEN && ft_strncmp( (char*)cur, STARTDATA, STARTDATA_LEN ) == 0 ) { - if ( ft_strncmp( (char*)arg1, "(Hex)", 5 ) == 0 ) - { - FT_Long tmp = ft_strtol( (const char *)arg2, NULL, 10 ); + T1_TokenRec type_token; + FT_Long binary_length; - if ( tmp < 0 ) + parser->root.cursor = arg1; + cid_parser_to_token( parser, &type_token ); + if ( type_token.limit - type_token.start == 5 && + ft_memcmp( (char*)type_token.start, "(Hex)", 5 ) == 0 ) + { + parser->root.cursor = arg2; + binary_length = cid_parser_to_int( parser ); + if ( binary_length < 0 ) { FT_ERROR(( "cid_parser_new: invalid length of hex data\n" )); error = FT_THROW( Invalid_File_Format ); } else - parser->binary_length = (FT_ULong)tmp; + parser->binary_length = (FT_ULong)binary_length; } goto Exit; diff --git a/Build/source/libs/freetype2/freetype-src/src/cid/cidriver.c b/Build/source/libs/freetype2/freetype-src/src/cid/cidriver.c index f7499237d73..99e7b118395 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cid/cidriver.c +++ b/Build/source/libs/freetype2/freetype-src/src/cid/cidriver.c @@ -48,10 +48,11 @@ * */ - static const char* - cid_get_postscript_name( CID_Face face ) + FT_CALLBACK_DEF( const char* ) + cid_get_postscript_name( FT_Face face ) /* CID_Face */ { - const char* result = face->cid.cid_font_name; + CID_Face cidface = (CID_Face)face; + const char* result = cidface->cid.cid_font_name; if ( result && result[0] == '/' ) @@ -72,34 +73,36 @@ * */ - static FT_Error - cid_ps_get_font_info( FT_Face face, + FT_CALLBACK_DEF( FT_Error ) + cid_ps_get_font_info( FT_Face face, /* CID_Face */ PS_FontInfoRec* afont_info ) { - *afont_info = ((CID_Face)face)->cid.font_info; + *afont_info = ( (CID_Face)face )->cid.font_info; return FT_Err_Ok; } - static FT_Error - cid_ps_get_font_extra( FT_Face face, - PS_FontExtraRec* afont_extra ) + + FT_CALLBACK_DEF( FT_Error ) + cid_ps_get_font_extra( FT_Face face, /* CID_Face */ + PS_FontExtraRec* afont_extra ) { - *afont_extra = ((CID_Face)face)->font_extra; + *afont_extra = ( (CID_Face)face )->font_extra; return FT_Err_Ok; } + static const FT_Service_PsInfoRec cid_service_ps_info = { - (PS_GetFontInfoFunc) cid_ps_get_font_info, /* ps_get_font_info */ - (PS_GetFontExtraFunc) cid_ps_get_font_extra, /* ps_get_font_extra */ + cid_ps_get_font_info, /* PS_GetFontInfoFunc ps_get_font_info */ + cid_ps_get_font_extra, /* PS_GetFontExtraFunc ps_get_font_extra */ /* unsupported with CID fonts */ - (PS_HasGlyphNamesFunc) NULL, /* ps_has_glyph_names */ + NULL, /* PS_HasGlyphNamesFunc ps_has_glyph_names */ /* unsupported */ - (PS_GetFontPrivateFunc)NULL, /* ps_get_font_private */ + NULL, /* PS_GetFontPrivateFunc ps_get_font_private */ /* not implemented */ - (PS_GetFontValueFunc) NULL /* ps_get_font_value */ + NULL /* PS_GetFontValueFunc ps_get_font_value */ }; @@ -107,13 +110,14 @@ * CID INFO SERVICE * */ - static FT_Error - cid_get_ros( CID_Face face, + FT_CALLBACK_DEF( FT_Error ) + cid_get_ros( FT_Face face, /* CID_Face */ const char* *registry, const char* *ordering, FT_Int *supplement ) { - CID_FaceInfo cid = &face->cid; + CID_Face cidface = (CID_Face)face; + CID_FaceInfo cid = &cidface->cid; if ( registry ) @@ -129,32 +133,48 @@ } - static FT_Error - cid_get_is_cid( CID_Face face, + FT_CALLBACK_DEF( FT_Error ) + cid_get_is_cid( FT_Face face, /* CID_Face */ FT_Bool *is_cid ) { FT_Error error = FT_Err_Ok; FT_UNUSED( face ); + /* + * XXX: If the ROS is Adobe-Identity-H or -V, + * the font has no reliable information about + * its glyph collection. Should we not set + * *is_cid in such cases? + */ if ( is_cid ) - *is_cid = 1; /* cid driver is only used for CID keyed fonts */ + *is_cid = 1; return error; } - static FT_Error - cid_get_cid_from_glyph_index( CID_Face face, + FT_CALLBACK_DEF( FT_Error ) + cid_get_cid_from_glyph_index( FT_Face face, /* CID_Face */ FT_UInt glyph_index, FT_UInt *cid ) { - FT_Error error = FT_Err_Ok; - FT_UNUSED( face ); - - - if ( cid ) - *cid = glyph_index; /* identity mapping */ + FT_Error error = FT_Err_Ok; + CID_Face cidface = (CID_Face)face; + + + /* + * Currently, FreeType does not support incrementally-defined, CID-keyed + * fonts that store the glyph description data in a `/GlyphDirectory` + * array or dictionary. Fonts loaded by the incremental loading feature + * are thus not handled here. + */ + error = cid_compute_fd_and_offsets( cidface, glyph_index, + NULL, NULL, NULL ); + if ( error ) + *cid = 0; + else + *cid = glyph_index; return error; } @@ -162,12 +182,12 @@ static const FT_Service_CIDRec cid_service_cid_info = { - (FT_CID_GetRegistryOrderingSupplementFunc) - cid_get_ros, /* get_ros */ - (FT_CID_GetIsInternallyCIDKeyedFunc) - cid_get_is_cid, /* get_is_cid */ - (FT_CID_GetCIDFromGlyphIndexFunc) - cid_get_cid_from_glyph_index /* get_cid_from_glyph_index */ + cid_get_ros, + /* FT_CID_GetRegistryOrderingSupplementFunc get_ros */ + cid_get_is_cid, + /* FT_CID_GetIsInternallyCIDKeyedFunc get_is_cid */ + cid_get_cid_from_glyph_index + /* FT_CID_GetCIDFromGlyphIndexFunc get_cid_from_glyph_index */ }; @@ -179,9 +199,9 @@ FT_DEFINE_SERVICE_PROPERTIESREC( cid_service_properties, - (FT_Properties_SetFunc)ps_property_set, /* set_property */ - (FT_Properties_GetFunc)ps_property_get ) /* get_property */ - + ps_property_set, /* FT_Properties_SetFunc set_property */ + ps_property_get /* FT_Properties_GetFunc get_property */ + ) /* * SERVICE LIST @@ -209,7 +229,6 @@ } - FT_CALLBACK_TABLE_DEF const FT_Driver_ClassRec t1cid_driver_class = { |