static
FT_UInt Get_Char_Index( FT_CharMap charmap,
FT_Long charcode )
{
T1_Face face;
FT_UInt result = 0;
PSNames_Interface* psnames;
face = (T1_Face)charmap->face;
psnames = (PSNames_Interface*)face->psnames;
if ( psnames )
switch ( charmap->encoding )
{
/*******************************************************************/
/* */
/* Unicode encoding support */
/* */
case ft_encoding_unicode:
/* use the `PSNames' module to synthetize the Unicode charmap */
result = psnames->lookup_unicode( &face->unicode_map,
(FT_ULong)charcode );
/* the function returns 0xFFFF if the Unicode charcode has */
/* no corresponding glyph */
if ( result == 0xFFFF )
result = 0;
goto Exit;
/*******************************************************************/
/* */
/* Custom Type 1 encoding */
/* */
case ft_encoding_adobe_custom:
{
T1_Encoding* encoding = &face->type1.encoding;
if ( charcode >= encoding->code_first &&
charcode <= encoding->code_last )
result = encoding->char_index[charcode];
goto Exit;
}
/*******************************************************************/
/* */
/* Adobe Standard & Expert encoding support */
/* */
default:
if ( charcode < 256 )
{
FT_UInt code;
FT_Int n;
const char* glyph_name;
code = psnames->adobe_std_encoding[charcode];
if ( charmap->encoding == ft_encoding_adobe_expert )
code = psnames->adobe_expert_encoding[charcode];
glyph_name = psnames->adobe_std_strings( code );
if ( !glyph_name )
break;
for ( n = 0; n < face->type1.num_glyphs; n++ )
{
const char* gname = face->type1.glyph_names[n];
if ( gname && gname[0] == glyph_name[0] &&
strcmp( gname, glyph_name ) == 0 )
{
result = n;
break;
}
}
}
}
Exit:
return result;
}
FT_LOCAL_DEF FT_Error
T1_Face_Init( FT_Stream stream,
T1_Face face,
FT_Int face_index,
FT_Int num_params,
FT_Parameter* params )
{
FT_Error error;
PSNames_Interface* psnames;
PSAux_Interface* psaux;
PSHinter_Interface* pshinter;
FT_UNUSED( num_params );
FT_UNUSED( params );
FT_UNUSED( face_index );
FT_UNUSED( stream );
face->root.num_faces = 1;
psnames = (PSNames_Interface*)face->psnames;
if ( !psnames )
{
psnames = (PSNames_Interface*)
FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psnames" );
face->psnames = psnames;
}
psaux = (PSAux_Interface*)face->psaux;
if ( !psaux )
{
psaux = (PSAux_Interface*)
FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "psaux" );
face->psaux = psaux;
}
pshinter = (PSHinter_Interface*)face->pshinter;
if ( !pshinter )
{
pshinter = (PSHinter_Interface*)
FT_Get_Module_Interface( FT_FACE_LIBRARY( face ), "pshinter" );
face->pshinter = pshinter;
}
/* open the tokenizer, this will also check the font format */
error = T1_Open_Face( face );
if ( error )
goto Exit;
/* if we just wanted to check the format, leave successfully now */
if ( face_index < 0 )
goto Exit;
/* check the face index */
if ( face_index != 0 )
{
FT_ERROR(( "T1_Face_Init: invalid face index\n" ));
error = T1_Err_Invalid_Argument;
goto Exit;
}
/* Now, load the font program into the face object */
/* Init the face object fields */
/* Now set up root face fields */
{
FT_Face root = (FT_Face)&face->root;
root->num_glyphs = face->type1.num_glyphs;
root->num_charmaps = 1;
root->face_index = face_index;
root->face_flags = FT_FACE_FLAG_SCALABLE;
root->face_flags |= FT_FACE_FLAG_HORIZONTAL;
root->face_flags |= FT_FACE_FLAG_GLYPH_NAMES;
if ( face->type1.font_info.is_fixed_pitch )
root->face_flags |= FT_FACE_FLAG_FIXED_WIDTH;
if ( face->blend )
root->face_flags |= FT_FACE_FLAG_MULTIPLE_MASTERS;
/* XXX: TODO -- add kerning with .afm support */
/* get style name -- be careful, some broken fonts only */
/* have a `/FontName' dictionary entry! */
root->family_name = face->type1.font_info.family_name;
if ( root->family_name )
{
char* full = face->type1.font_info.full_name;
char* family = root->family_name;
if ( full )
{
while ( *family && *full == *family )
{
family++;
full++;
}
root->style_name = ( *full == ' ' ? full + 1
: (char *)"Regular" );
}
else
root->style_name = (char *)"Regular";
}
else
{
/* do we have a `/FontName'? */
if ( face->type1.font_name )
{
root->family_name = face->type1.font_name;
root->style_name = (char *)"Regular";
}
}
/* compute style flags */
root->style_flags = 0;
if ( face->type1.font_info.italic_angle )
root->style_flags |= FT_STYLE_FLAG_ITALIC;
if ( face->type1.font_info.weight )
{
if ( !strcmp( face->type1.font_info.weight, "Bold" ) ||
!strcmp( face->type1.font_info.weight, "Black" ) )
root->style_flags |= FT_STYLE_FLAG_BOLD;
}
/* no embedded bitmap support */
root->num_fixed_sizes = 0;
root->available_sizes = 0;
root->bbox = face->type1.font_bbox;
/* Set units_per_EM if we didn't set it in parse_font_matrix. */
if ( !root->units_per_EM )
root->units_per_EM = 1000;
root->ascender = (FT_Short)( face->type1.font_bbox.yMax >> 16 );
root->descender = (FT_Short)( face->type1.font_bbox.yMin >> 16 );
root->height = (FT_Short)(
( ( root->ascender - root->descender ) * 12 ) / 10 );
/* now compute the maximum advance width */
root->max_advance_width =
(FT_Short)( face->type1.font_bbox.xMax >> 16 );
{
FT_Int max_advance;
error = T1_Compute_Max_Advance( face, &max_advance );
/* in case of error, keep the standard width */
if ( !error )
root->max_advance_width = (FT_Short)max_advance;
else
error = 0; /* clear error */
}
root->max_advance_height = root->height;
root->underline_position = face->type1.font_info.underline_position;
root->underline_thickness = face->type1.font_info.underline_thickness;
root->internal->max_points = 0;
root->internal->max_contours = 0;
}
/* charmap support -- synthetize unicode charmap if possible */
{
FT_Face root = &face->root;
FT_CharMap charmap = face->charmaprecs;
/* synthesize a Unicode charmap if there is support in the `PSNames' */
/* module */
if ( psnames )
{
if ( psnames->unicode_value )
{
error = psnames->build_unicodes(
root->memory,
face->type1.num_glyphs,
(const char**)face->type1.glyph_names,
&face->unicode_map );
if ( !error )
{
root->charmap = charmap;
charmap->face = (FT_Face)face;
charmap->encoding = ft_encoding_unicode;
charmap->platform_id = 3;
charmap->encoding_id = 1;
charmap++;
}
/* simply clear the error in case of failure (which really) */
/* means that out of memory or no unicode glyph names */
error = T1_Err_Ok;
}
}
/* now, support either the standard, expert, or custom encoding */
charmap->face = (FT_Face)face;
charmap->platform_id = 7; /* a new platform id for Adobe fonts? */
switch ( face->type1.encoding_type )
{
case t1_encoding_standard:
charmap->encoding = ft_encoding_adobe_standard;
charmap->encoding_id = 0;
break;
case t1_encoding_expert:
charmap->encoding = ft_encoding_adobe_expert;
charmap->encoding_id = 1;
break;
default:
charmap->encoding = ft_encoding_adobe_custom;
charmap->encoding_id = 2;
break;
}
root->charmaps = face->charmaps;
root->num_charmaps = charmap - face->charmaprecs + 1;
face->charmaps[0] = &face->charmaprecs[0];
face->charmaps[1] = &face->charmaprecs[1];
}
Exit:
return error;
}
static FT_Long
CID_Get_Next_Char( FT_CharMap charmap,
FT_Long charcode )
{
T1_Face face;
PSNames_Interface* psnames;
face = (T1_Face)charmap->face;
psnames = (PSNames_Interface*)face->psnames;
if ( psnames )
switch ( charmap->encoding )
{
/*******************************************************************/
/* */
/* Unicode encoding support */
/* */
case ft_encoding_unicode:
/* use the `PSNames' module to synthetize the Unicode charmap */
return psnames->next_unicode (&face->unicode_map,
(FT_ULong)charcode );
/*******************************************************************/
/* */
/* Custom Type 1 encoding */
/* */
case ft_encoding_adobe_custom:
{
T1_Encoding* encoding = &face->type1.encoding;
charcode++;
if ( charcode < encoding->code_first )
charcode = encoding->code_first;
while ( charcode <= encoding->code_last )
{
if ( encoding->char_index[charcode] )
return charcode;
charcode++;
}
}
break;
/*******************************************************************/
/* */
/* Adobe Standard & Expert encoding support */
/* */
default:
while ( ++charcode < 256 )
{
FT_UInt code;
FT_Int n;
const char* glyph_name;
code = psnames->adobe_std_encoding[charcode];
if ( charmap->encoding == ft_encoding_adobe_expert )
code = psnames->adobe_expert_encoding[charcode];
glyph_name = psnames->adobe_std_strings( code );
if ( !glyph_name )
continue;
for ( n = 0; n < face->type1.num_glyphs; n++ )
{
const char* gname = face->type1.glyph_names[n];
if ( gname && gname[0] == glyph_name[0] &&
strcmp( gname, glyph_name ) == 0 )
{
return charcode;
}
}
}
}
return 0;
}