diff options
Diffstat (limited to 'src/sfnt/sfobjs.c')
| -rw-r--r-- | src/sfnt/sfobjs.c | 89 |
1 files changed, 65 insertions, 24 deletions
diff --git a/src/sfnt/sfobjs.c b/src/sfnt/sfobjs.c index 54912c500..6ba8509f5 100644 --- a/src/sfnt/sfobjs.c +++ b/src/sfnt/sfobjs.c @@ -4,7 +4,7 @@ /* */ /* SFNT object management (base). */ /* */ -/* Copyright 1996-2017 by */ +/* Copyright 1996-2018 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -787,6 +787,8 @@ tag != TTAG_OTTO && tag != TTAG_true && tag != TTAG_typ1 && + tag != TTAG_0xA5kbd && + tag != TTAG_0xA5lst && tag != 0x00020000UL ) { FT_TRACE2(( " not a font using the SFNT container format\n" )); @@ -856,7 +858,6 @@ FT_Parameter* params ) { FT_Error error; - FT_Memory memory = face->root.memory; FT_Library library = face->root.driver->root.library; SFNT_Service sfnt; FT_Int face_index; @@ -943,6 +944,8 @@ #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT { + FT_Memory memory = face->root.memory; + FT_ULong fvar_len; FT_ULong version; @@ -959,8 +962,6 @@ FT_Byte* instance_values = NULL; - face->is_default_instance = 1; - instance_index = FT_ABS( face_instance_index ) >> 16; /* test whether current face is a GX font with named instances */ @@ -1011,8 +1012,9 @@ * later on. Here, we have to adjust `num_instances' accordingly. */ - if ( !( FT_ALLOC( default_values, num_axes * 2 ) || - FT_ALLOC( instance_values, num_axes * 2 ) ) ) + if ( ( face->variation_support & TT_FACE_FLAG_VAR_FVAR ) && + !( FT_ALLOC( default_values, num_axes * 4 ) || + FT_ALLOC( instance_values, num_axes * 4 ) ) ) { /* the current stream position is 16 bytes after the table start */ FT_ULong array_start = FT_STREAM_POS() - 16 + offset; @@ -1027,10 +1029,10 @@ for ( i = 0; i < num_axes; i++ ) { - (void)FT_STREAM_READ_AT( default_value_offset, p, 2 ); + (void)FT_STREAM_READ_AT( default_value_offset, p, 4 ); default_value_offset += axis_size; - p += 2; + p += 4; } instance_offset = array_start + axis_size * num_axes + 4; @@ -1039,9 +1041,9 @@ { (void)FT_STREAM_READ_AT( instance_offset, instance_values, - num_axes * 2 ); + num_axes * 4 ); - if ( !ft_memcmp( default_values, instance_values, num_axes * 2 ) ) + if ( !ft_memcmp( default_values, instance_values, num_axes * 4 ) ) break; instance_offset += instance_size; @@ -1142,6 +1144,8 @@ FT_Bool has_outline; FT_Bool is_apple_sbit; FT_Bool is_apple_sbix; + FT_Bool has_CBLC; + FT_Bool has_CBDT; FT_Bool ignore_typographic_family = FALSE; FT_Bool ignore_typographic_subfamily = FALSE; @@ -1222,7 +1226,17 @@ goto Exit; } - if ( face->header.Units_Per_EM == 0 ) + has_CBLC = !face->goto_table( face, TTAG_CBLC, stream, 0 ); + has_CBDT = !face->goto_table( face, TTAG_CBDT, stream, 0 ); + + /* Ignore outlines for CBLC/CBDT fonts. */ + if ( has_CBLC || has_CBDT ) + has_outline = FALSE; + + /* OpenType 1.8.2 introduced limits to this value; */ + /* however, they make sense for older SFNT fonts also */ + if ( face->header.Units_Per_EM < 16 || + face->header.Units_Per_EM > 16384 ) { error = FT_THROW( Invalid_Table ); @@ -1462,7 +1476,8 @@ /* Polish the charmaps. */ /* */ /* Try to set the charmap encoding according to the platform & */ - /* encoding ID of each charmap. */ + /* encoding ID of each charmap. Emulate Unicode charmap if one */ + /* is missing. */ /* */ tt_face_build_cmaps( face ); /* ignore errors */ @@ -1470,7 +1485,10 @@ /* set the encoding fields */ { - FT_Int m; + FT_Int m; +#ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES + FT_Bool has_unicode = FALSE; +#endif for ( m = 0; m < root->num_charmaps; m++ ) @@ -1481,14 +1499,34 @@ charmap->encoding = sfnt_find_encoding( charmap->platform_id, charmap->encoding_id ); -#if 0 - if ( !root->charmap && - charmap->encoding == FT_ENCODING_UNICODE ) - { - /* set 'root->charmap' to the first Unicode encoding we find */ - root->charmap = charmap; - } -#endif +#ifdef FT_CONFIG_OPTION_POSTSCRIPT_NAMES + + if ( charmap->encoding == FT_ENCODING_UNICODE || + charmap->encoding == FT_ENCODING_MS_SYMBOL ) /* PUA */ + has_unicode = TRUE; + } + + /* synthesize Unicode charmap if one is missing */ + if ( !has_unicode ) + { + FT_CharMapRec cmaprec; + + + cmaprec.face = root; + cmaprec.platform_id = TT_PLATFORM_MICROSOFT; + cmaprec.encoding_id = TT_MS_ID_UNICODE_CS; + cmaprec.encoding = FT_ENCODING_UNICODE; + + + error = FT_CMap_New( (FT_CMap_Class)&tt_cmap_unicode_class_rec, + NULL, &cmaprec, NULL ); + if ( error && + FT_ERR_NEQ( error, No_Unicode_Glyph_Name ) ) + goto Exit; + error = FT_Err_Ok; + +#endif /* FT_CONFIG_OPTION_POSTSCRIPT_NAMES */ + } } @@ -1655,9 +1693,9 @@ (FT_Short)( face->vertical_info ? face->vertical.advance_Height_Max : root->height ); - /* See http://www.microsoft.com/OpenType/OTSpec/post.htm -- */ - /* Adjust underline position from top edge to centre of */ - /* stroke to convert TrueType meaning to FreeType meaning. */ + /* See https://www.microsoft.com/typography/otspec/post.htm -- */ + /* Adjust underline position from top edge to centre of */ + /* stroke to convert TrueType meaning to FreeType meaning. */ root->underline_position = face->postscript.underlinePosition - face->postscript.underlineThickness / 2; root->underline_thickness = face->postscript.underlineThickness; @@ -1754,7 +1792,10 @@ FT_FREE( face->sbit_strike_map ); face->root.num_fixed_sizes = 0; +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT FT_FREE( face->postscript_name ); + FT_FREE( face->var_postscript_prefix ); +#endif face->sfnt = NULL; } |