diff options
Diffstat (limited to 'src/3rdparty/freetype/src/pfr/pfrload.c')
| -rw-r--r-- | src/3rdparty/freetype/src/pfr/pfrload.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/src/3rdparty/freetype/src/pfr/pfrload.c b/src/3rdparty/freetype/src/pfr/pfrload.c index 6bf7979750..de85ee6aad 100644 --- a/src/3rdparty/freetype/src/pfr/pfrload.c +++ b/src/3rdparty/freetype/src/pfr/pfrload.c @@ -4,7 +4,7 @@ * * FreeType PFR loader (body). * - * Copyright (C) 2002-2022 by + * Copyright (C) 2002-2023 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -268,9 +268,7 @@ header->version > 4 || header->header_size < 58 || header->signature2 != 0x0D0A ) /* CR/LF */ - { result = 0; - } return result; } @@ -406,11 +404,9 @@ } if ( flags & PFR_LOG_BOLD ) - { log_font->bold_thickness = ( flags & PFR_LOG_2BYTE_BOLD ) ? PFR_NEXT_SHORT( p ) : PFR_NEXT_BYTE( p ); - } if ( flags & PFR_LOG_EXTRA_ITEMS ) { @@ -604,7 +600,7 @@ if ( FT_QNEW_ARRAY( snaps, count ) ) goto Exit; - phy_font->vertical.stem_snaps = snaps; + phy_font->vertical.stem_snaps = snaps; phy_font->horizontal.stem_snaps = snaps + num_vert; for ( ; count > 0; count--, snaps++ ) @@ -621,7 +617,6 @@ } - /* load kerning pair data */ FT_CALLBACK_DEF( FT_Error ) pfr_extra_item_load_kerning_pairs( FT_Byte* p, @@ -857,8 +852,16 @@ phy_font->bbox.yMax = PFR_NEXT_SHORT( p ); phy_font->flags = flags = PFR_NEXT_BYTE( p ); + if ( !phy_font->outline_resolution || + !phy_font->metrics_resolution ) + { + error = FT_THROW( Invalid_Table ); + FT_ERROR(( "pfr_phy_font_load: invalid resolution\n" )); + goto Fail; + } + /* get the standard advance for non-proportional fonts */ - if ( !(flags & PFR_PHY_PROPORTIONAL) ) + if ( !( flags & PFR_PHY_PROPORTIONAL ) ) { PFR_CHECK( 2 ); phy_font->standard_advance = PFR_NEXT_SHORT( p ); @@ -869,14 +872,13 @@ { error = pfr_extra_items_parse( &p, limit, pfr_phy_font_extra_items, phy_font ); - if ( error ) goto Fail; } /* In certain fonts, the auxiliary bytes contain interesting */ /* information. These are not in the specification but can be */ - /* guessed by looking at the content of a few PFR0 fonts. */ + /* guessed by looking at the content of a few 'PFR0' fonts. */ PFR_CHECK( 3 ); num_aux = PFR_NEXT_ULONG( p ); @@ -975,6 +977,13 @@ phy_font->num_chars = count = PFR_NEXT_USHORT( p ); phy_font->chars_offset = offset + (FT_Offset)( p - stream->cursor ); + if ( !phy_font->num_chars ) + { + error = FT_THROW( Invalid_Table ); + FT_ERROR(( "pfr_phy_font_load: no glyphs\n" )); + goto Fail; + } + Size = 1 + 1 + 2; if ( flags & PFR_PHY_2BYTE_CHARCODE ) Size += 1; |