T1_Read_Metrics( FT_Face t1_face,
FT_Stream stream )
{
FT_Error error;
FT_Byte* start;
if ( FT_FRAME_ENTER( stream->size ) )
return error;
start = (FT_Byte*)stream->cursor;
if ( stream->size >= ft_strlen( "StartFontMetrics" ) &&
ft_strncmp( (const char*)start, "StartFontMetrics",
ft_strlen( "StartFontMetrics" ) ) == 0 )
error = T1_Read_AFM( t1_face, stream );
else if ( stream->size > 6 &&
start[0] == 0x00 && start[1] == 0x01 &&
LITTLE_ENDIAN_UINT( start + 2 ) == stream->size )
error = T1_Read_PFM( t1_face, stream );
else
error = T1_Err_Unknown_File_Format;
FT_FRAME_EXIT();
return error;
}
T1_Read_Metrics( FT_Face t1_face,
FT_Stream stream )
{
PSAux_Service psaux;
FT_Memory memory = stream->memory;
AFM_ParserRec parser;
AFM_FontInfo fi = NULL;
FT_Error error = FT_ERR( Unknown_File_Format );
T1_Font t1_font = &( (T1_Face)t1_face )->type1;
if ( FT_NEW( fi ) ||
FT_FRAME_ENTER( stream->size ) )
goto Exit;
fi->FontBBox = t1_font->font_bbox;
fi->Ascender = t1_font->font_bbox.yMax;
fi->Descender = t1_font->font_bbox.yMin;
psaux = (PSAux_Service)( (T1_Face)t1_face )->psaux;
if ( psaux->afm_parser_funcs )
{
error = psaux->afm_parser_funcs->init( &parser,
stream->memory,
stream->cursor,
stream->limit );
if ( !error )
{
parser.FontInfo = fi;
parser.get_index = t1_get_index;
parser.user_data = t1_font;
error = psaux->afm_parser_funcs->parse( &parser );
psaux->afm_parser_funcs->done( &parser );
}
}
if ( FT_ERR_EQ( error, Unknown_File_Format ) )
{
FT_Byte* start = stream->cursor;
/* MS Windows allows versions up to 0x3FF without complaining */
if ( stream->size > 6 &&
start[1] < 4 &&
FT_PEEK_ULONG_LE( start + 2 ) == stream->size )
error = T1_Read_PFM( t1_face, stream, fi );
}
if ( !error )
{
t1_font->font_bbox = fi->FontBBox;
t1_face->bbox.xMin = fi->FontBBox.xMin >> 16;
t1_face->bbox.yMin = fi->FontBBox.yMin >> 16;
/* no `U' suffix here to 0xFFFF! */
t1_face->bbox.xMax = ( fi->FontBBox.xMax + 0xFFFF ) >> 16;
t1_face->bbox.yMax = ( fi->FontBBox.yMax + 0xFFFF ) >> 16;
/* no `U' suffix here to 0x8000! */
t1_face->ascender = (FT_Short)( ( fi->Ascender + 0x8000 ) >> 16 );
t1_face->descender = (FT_Short)( ( fi->Descender + 0x8000 ) >> 16 );
if ( fi->NumKernPair )
{
t1_face->face_flags |= FT_FACE_FLAG_KERNING;
( (T1_Face)t1_face )->afm_data = fi;
fi = NULL;
}
}
T1_Read_Metrics( FT_Face t1_face,
FT_Stream stream )
{
PSAux_Service psaux;
FT_Memory memory = stream->memory;
AFM_ParserRec parser;
AFM_FontInfo fi;
FT_Error error = T1_Err_Unknown_File_Format;
T1_Font t1_font = &( (T1_Face)t1_face )->type1;
if ( FT_NEW( fi ) )
return error;
if ( FT_FRAME_ENTER( stream->size ) )
{
FT_FREE( fi );
return error;
}
fi->FontBBox = t1_font->font_bbox;
fi->Ascender = t1_font->font_bbox.yMax;
fi->Descender = t1_font->font_bbox.yMin;
psaux = (PSAux_Service)( (T1_Face)t1_face )->psaux;
if ( psaux && psaux->afm_parser_funcs )
{
error = psaux->afm_parser_funcs->init( &parser,
stream->memory,
stream->cursor,
stream->limit );
if ( !error )
{
parser.FontInfo = fi;
parser.get_index = t1_get_index;
parser.user_data = t1_font;
error = psaux->afm_parser_funcs->parse( &parser );
psaux->afm_parser_funcs->done( &parser );
}
}
if ( error == T1_Err_Unknown_File_Format )
{
FT_Byte* start = stream->cursor;
if ( stream->size > 6 &&
start[0] == 0x00 && start[1] == 0x01 &&
FT_PEEK_ULONG_LE( start + 2 ) == stream->size )
error = T1_Read_PFM( t1_face, stream, fi );
}
if ( !error )
{
t1_font->font_bbox = fi->FontBBox;
t1_face->bbox.xMin = fi->FontBBox.xMin >> 16;
t1_face->bbox.yMin = fi->FontBBox.yMin >> 16;
t1_face->bbox.xMax = ( fi->FontBBox.xMax + 0xFFFFU ) >> 16;
t1_face->bbox.yMax = ( fi->FontBBox.yMax + 0xFFFFU ) >> 16;
t1_face->ascender = (FT_Short)( ( fi->Ascender + 0x8000U ) >> 16 );
t1_face->descender = (FT_Short)( ( fi->Descender + 0x8000U ) >> 16 );
if ( fi->NumKernPair )
{
t1_face->face_flags |= FT_FACE_FLAG_KERNING;
( (T1_Face)t1_face )->afm_data = fi;
}
}
