diff options
Diffstat (limited to 'src/sfnt/ttbdf.c')
| -rw-r--r-- | src/sfnt/ttbdf.c | 250 |
1 files changed, 0 insertions, 250 deletions
diff --git a/src/sfnt/ttbdf.c b/src/sfnt/ttbdf.c deleted file mode 100644 index 6c95387..0000000 --- a/src/sfnt/ttbdf.c +++ /dev/null @@ -1,250 +0,0 @@ -/***************************************************************************/ -/* */ -/* ttbdf.c */ -/* */ -/* TrueType and OpenType embedded BDF properties (body). */ -/* */ -/* Copyright 2005, 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. */ -/* */ -/***************************************************************************/ - - -#include <ft2build.h> -#include FT_INTERNAL_DEBUG_H -#include FT_INTERNAL_STREAM_H -#include FT_TRUETYPE_TAGS_H -#include "ttbdf.h" - -#include "sferrors.h" - - -#ifdef TT_CONFIG_OPTION_BDF - - /*************************************************************************/ - /* */ - /* 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_ttbdf - - - FT_LOCAL_DEF( void ) - tt_face_free_bdf_props( TT_Face face ) - { - TT_BDF bdf = &face->bdf; - - - if ( bdf->loaded ) - { - FT_Stream stream = FT_FACE(face)->stream; - - - if ( bdf->table != NULL ) - FT_FRAME_RELEASE( bdf->table ); - - bdf->table_end = NULL; - bdf->strings = NULL; - bdf->strings_size = 0; - } - } - - - static FT_Error - tt_face_load_bdf_props( TT_Face face, - FT_Stream stream ) - { - TT_BDF bdf = &face->bdf; - FT_ULong length; - FT_Error error; - - - FT_ZERO( bdf ); - - error = tt_face_goto_table( face, TTAG_BDF, stream, &length ); - if ( error || - length < 8 || - FT_FRAME_EXTRACT( length, bdf->table ) ) - { - error = FT_Err_Invalid_Table; - goto Exit; - } - - bdf->table_end = bdf->table + length; - - { - FT_Byte* p = bdf->table; - FT_UInt version = FT_NEXT_USHORT( p ); - FT_UInt num_strikes = FT_NEXT_USHORT( p ); - FT_UInt32 strings = FT_NEXT_ULONG ( p ); - FT_UInt count; - FT_Byte* strike; - - - if ( version != 0x0001 || - strings < 8 || - ( strings - 8 ) / 4 < num_strikes || - strings + 1 > length ) - { - goto BadTable; - } - - bdf->num_strikes = num_strikes; - bdf->strings = bdf->table + strings; - bdf->strings_size = length - strings; - - count = bdf->num_strikes; - p = bdf->table + 8; - strike = p + count * 4; - - - for ( ; count > 0; count-- ) - { - FT_UInt num_items = FT_PEEK_USHORT( p + 2 ); - - /* - * We don't need to check the value sets themselves, since this - * is done later. - */ - strike += 10 * num_items; - - p += 4; - } - - if ( strike > bdf->strings ) - goto BadTable; - } - - bdf->loaded = 1; - - Exit: - return error; - - BadTable: - FT_FRAME_RELEASE( bdf->table ); - FT_ZERO( bdf ); - error = FT_Err_Invalid_Table; - goto Exit; - } - - - FT_LOCAL_DEF( FT_Error ) - tt_face_find_bdf_prop( TT_Face face, - const char* property_name, - BDF_PropertyRec *aprop ) - { - TT_BDF bdf = &face->bdf; - FT_Size size = FT_FACE(face)->size; - FT_Error error = 0; - FT_Byte* p; - FT_UInt count; - FT_Byte* strike; - FT_UInt property_len; - - - aprop->type = BDF_PROPERTY_TYPE_NONE; - - if ( bdf->loaded == 0 ) - { - error = tt_face_load_bdf_props( face, FT_FACE( face )->stream ); - if ( error ) - goto Exit; - } - - count = bdf->num_strikes; - p = bdf->table + 8; - strike = p + 4 * count; - - error = FT_Err_Invalid_Argument; - - if ( size == NULL || property_name == NULL ) - goto Exit; - - property_len = ft_strlen( property_name ); - if ( property_len == 0 ) - goto Exit; - - for ( ; count > 0; count-- ) - { - FT_UInt _ppem = FT_NEXT_USHORT( p ); - FT_UInt _count = FT_NEXT_USHORT( p ); - - if ( _ppem == size->metrics.y_ppem ) - { - count = _count; - goto FoundStrike; - } - - strike += 10 * _count; - } - goto Exit; - - FoundStrike: - p = strike; - for ( ; count > 0; count-- ) - { - FT_UInt type = FT_PEEK_USHORT( p + 4 ); - - if ( ( type & 0x10 ) != 0 ) - { - FT_UInt32 name_offset = FT_PEEK_ULONG( p ); - FT_UInt32 value = FT_PEEK_ULONG( p + 6 ); - - /* be a bit paranoid for invalid entries here */ - if ( name_offset < bdf->strings_size && - property_len < bdf->strings_size - name_offset && - ft_strncmp( property_name, - (const char*)bdf->strings + name_offset, - bdf->strings_size - name_offset ) == 0 ) - { - switch ( type & 0x0F ) - { - case 0x00: /* string */ - case 0x01: /* atoms */ - /* check that the content is really 0-terminated */ - if ( value < bdf->strings_size && - ft_memchr( bdf->strings + value, 0, bdf->strings_size ) ) - { - aprop->type = BDF_PROPERTY_TYPE_ATOM; - aprop->u.atom = (const char*)bdf->strings + value; - error = 0; - goto Exit; - } - break; - - case 0x02: - aprop->type = BDF_PROPERTY_TYPE_INTEGER; - aprop->u.integer = (FT_Int32)value; - error = 0; - goto Exit; - - case 0x03: - aprop->type = BDF_PROPERTY_TYPE_CARDINAL; - aprop->u.cardinal = value; - error = 0; - goto Exit; - - default: - ; - } - } - } - p += 10; - } - - Exit: - return error; - } - -#endif /* TT_CONFIG_OPTION_BDF */ - - -/* END */ |