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In function parse_encoding, initialize encoding_table.elements to have

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.notdef in each entry.

In function parse_charstrings, place the .notdef glyph in index 0, and
add a .notdef glyph if it is missing.

In function Z1_Open_Face, only change min/max encoded char if it is not
.notdef.
This commit is contained in:
Tom Kacvinsky 2000-10-17 20:25:30 +00:00
parent d2e9536258
commit 968b31154f
1 changed files with 115 additions and 7 deletions
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122
src/type1z/z1load.c
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@ -969,6 +969,13 @@
return;
}
/* We need to `zero' out encoding_table.elements */
for ( n = 0 ; n < count ; n++ )
{
char *notdef = ".notdef";
Z1_Add_Table( char_table, n, notdef, 8 );
}
/* Now, we will need to read a record of the form */
/* ... charcode /charname ... for each entry in our table */
/* */
@ -1170,7 +1177,8 @@
FT_Byte* cur;
FT_Byte* limit = parser->root.limit;
FT_Int n;
FT_UInt notdef_index = 0;
FT_Byte notdef_found = 0;
if ( loader->num_glyphs )
/* with synthetic fonts, it's possible we get here twice */
@ -1180,15 +1188,15 @@
if ( parser->root.error )
return;
/* initialize tables */
/* initialize tables, adding space for `swap' at table end */
error = psaux->ps_table_funcs->init( code_table,
loader->num_glyphs,
loader->num_glyphs + 1,
memory );
if ( error )
goto Fail;
error = psaux->ps_table_funcs->init( name_table,
loader->num_glyphs,
loader->num_glyphs + 1,
memory );
if ( error )
goto Fail;
@ -1199,7 +1207,6 @@
FT_Int size;
FT_Byte* base;
/* the format is simple: */
/* `/glyphname' + binary data */
/* */
@ -1243,6 +1250,14 @@
/* add a trailing zero to the name table */
name_table->elements[n][len] = '\0';
/* record index of /.notdef */
if ( strcmp( (const char*)".notdef",
(const char*)(name_table->elements[n]) ) == 0 )
{
notdef_index = n;
notdef_found = 1;
}
parser->root.cursor = cur2;
if ( !read_binary_data( parser, &size, &base ) )
return;
@ -1263,7 +1278,94 @@
break;
}
}
loader->num_glyphs = n;
/* if /.notdef is found but does not occupy index 0, do our magic. */
if ( strcmp( (const char*)".notdef",
(const char*)name_table->elements[0] ) &&
notdef_found )
{
/* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */
/* name/code to end of table. Then place notdef_index name/code into */
/* index 0. Then take end of table name/code and place it into index */
/* notdef_index. */
error = Z1_Add_Table( name_table, n,
name_table->elements[0],
name_table->lengths [0] );
if ( error )
goto Fail;
error = Z1_Add_Table( code_table, n,
code_table->elements[0],
code_table->lengths [0] );
if ( error )
goto Fail;
error = Z1_Add_Table( name_table, 0,
name_table->elements[notdef_index],
name_table->lengths [notdef_index] );
if ( error )
goto Fail;
error = Z1_Add_Table( code_table, 0,
code_table->elements[notdef_index],
code_table->lengths [notdef_index] );
if ( error )
goto Fail;
error = Z1_Add_Table( name_table, notdef_index,
name_table->elements[n],
name_table->lengths [n] );
if ( error )
goto Fail;
error = Z1_Add_Table( code_table, notdef_index,
code_table->elements[n],
code_table->lengths [n] );
if ( error )
goto Fail;
}
else if ( !notdef_found )
{
/* notdef_index is already 0, or /.notdef is undefined in */
/* charstrings dictionary. Worry about /.notdef undefined. */
/* we take index 0 and add it to the end of the table(s) */
/* and add our own /.notdef glyph to index 0. */
/* 0 333 hsbw endchar */
FT_Byte notdef_glyph[] = {0x8B,0xF7,0xE1,0x0D,0x0E};
char *notdef_name = ".notdef";
error = Z1_Add_Table( name_table, n,
name_table->elements[0],
name_table->lengths [0] );
if ( error )
goto Fail;
error = Z1_Add_Table( code_table, n,
code_table->elements[0],
code_table->lengths [0] );
if ( error )
goto Fail;
error = Z1_Add_Table( name_table, 0, notdef_name, 8 );
if ( error )
goto Fail;
error = Z1_Add_Table( code_table, 0, notdef_glyph, 5 );
if ( error )
goto Fail;
/* we added a glyph. */
loader->num_glyphs = n + 1;
}
return;
Fail:
@ -1569,8 +1671,14 @@
type1->encoding.char_index[charcode] = index;
type1->encoding.char_name [charcode] = (char*)glyph_name;
if (charcode < min_char) min_char = charcode;
if (charcode > max_char) max_char = charcode;
/* Change min/max encoded char only if glyph name is */
/* not /.notdef */
if ( strcmp( (const char*)".notdef",
(const char*)glyph_name ) != 0 )
{
if (charcode < min_char) min_char = charcode;
if (charcode > max_char) max_char = charcode;
}
break;
}
}