diff options
Diffstat (limited to 'src/3rdparty/freetype/src/sfnt/ttkern.c')
| -rw-r--r-- | src/3rdparty/freetype/src/sfnt/ttkern.c | 86 |
1 files changed, 46 insertions, 40 deletions
diff --git a/src/3rdparty/freetype/src/sfnt/ttkern.c b/src/3rdparty/freetype/src/sfnt/ttkern.c index 68f15a2010..a47d08bd6d 100644 --- a/src/3rdparty/freetype/src/sfnt/ttkern.c +++ b/src/3rdparty/freetype/src/sfnt/ttkern.c @@ -1,39 +1,38 @@ -/***************************************************************************/ -/* */ -/* ttkern.c */ -/* */ -/* Load the basic TrueType kerning table. This doesn't handle */ -/* kerning data within the GPOS table at the moment. */ -/* */ -/* Copyright 1996-2018 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 <ft2build.h> -#include FT_INTERNAL_DEBUG_H -#include FT_INTERNAL_STREAM_H -#include FT_TRUETYPE_TAGS_H +/**************************************************************************** + * + * ttkern.c + * + * Load the basic TrueType kerning table. This doesn't handle + * kerning data within the GPOS table at the moment. + * + * Copyright (C) 1996-2023 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 <freetype/internal/ftdebug.h> +#include <freetype/internal/ftstream.h> +#include <freetype/tttags.h> #include "ttkern.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. */ - /* */ + /************************************************************************** + * + * 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_ttkern +#define FT_COMPONENT ttkern #undef TT_KERN_INDEX @@ -95,7 +94,7 @@ p_next = p; - p += 2; /* skip version */ + p += 2; /* skip version */ length = FT_NEXT_USHORT( p ); coverage = FT_NEXT_USHORT( p ); @@ -127,8 +126,8 @@ avail |= mask; /* - * Now check whether the pairs in this table are ordered. - * We then can use binary search. + * Now check whether the pairs in this table are ordered. + * We then can use binary search. */ if ( num_pairs > 0 ) { @@ -145,7 +144,7 @@ cur_pair = FT_NEXT_ULONG( p ); - if ( cur_pair <= old_pair ) + if ( cur_pair < old_pair ) break; p += 2; @@ -188,11 +187,18 @@ FT_UInt left_glyph, FT_UInt right_glyph ) { - FT_Int result = 0; - FT_UInt count, mask; - FT_Byte* p = face->kern_table; - FT_Byte* p_limit = p + face->kern_table_size; + FT_Int result = 0; + FT_UInt count, mask; + FT_Byte* p; + FT_Byte* p_limit; + + + if ( !face->kern_table ) + return result; + + p = face->kern_table; + p_limit = p + face->kern_table_size; p += 4; mask = 0x0001; @@ -283,8 +289,8 @@ break; /* - * We don't support format 2 because we haven't seen a single font - * using it in real life... + * We don't support format 2 because we haven't seen a single font + * using it in real life... */ default: |