Commit 2ef0a19842ae1172bec153225328aaaeaf130a18
2012-12-23T21:14:37
[type1] Fix handling of /FontBBox in MM fonts. Problem reported by Del Merritt <del@alum.mit.edu> If we have /FontBBox { { 11 12 13 14 15 16 17 18 } { 21 22 23 24 25 26 27 28 } { 31 32 33 34 35 36 37 38 } { 41 42 43 44 45 46 47 48 } } in the /Blend dictionary, then the first BBox is { 11 21 31 41 }, the second { 12 22 32 42 }, etc. * include/freetype/internal/psaux.h (T1_FieldType): Add `T1_FIELD_TYPE_MM_BBOX' (for temporary use). * src/psaux/psobjs.c (ps_parser_load_field) <T1_FIELD_TYPE_MM_BBOX>: Implement it.
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diff --git a/ChangeLog b/ChangeLog
index 1d978a9..6fab500 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,24 @@
+2012-12-23 Werner Lemberg <wl@gnu.org>
+
+ [type1] Fix handling of /FontBBox in MM fonts.
+ Problem reported by Del Merritt <del@alum.mit.edu>
+
+ If we have
+
+ /FontBBox { { 11 12 13 14 15 16 17 18 }
+ { 21 22 23 24 25 26 27 28 }
+ { 31 32 33 34 35 36 37 38 }
+ { 41 42 43 44 45 46 47 48 } }
+
+ in the /Blend dictionary, then the first BBox is { 11 21 31 41 },
+ the second { 12 22 32 42 }, etc.
+
+ * include/freetype/internal/psaux.h (T1_FieldType): Add
+ `T1_FIELD_TYPE_MM_BBOX' (for temporary use).
+
+ * src/psaux/psobjs.c (ps_parser_load_field) <T1_FIELD_TYPE_MM_BBOX>:
+ Implement it.
+
2012-12-21 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/tools/cordic.py: Bring up to date with trigonometric core.
diff --git a/include/freetype/internal/psaux.h b/include/freetype/internal/psaux.h
index dccf6fc..e903114 100644
--- a/include/freetype/internal/psaux.h
+++ b/include/freetype/internal/psaux.h
@@ -186,6 +186,7 @@ FT_BEGIN_HEADER
T1_FIELD_TYPE_STRING,
T1_FIELD_TYPE_KEY,
T1_FIELD_TYPE_BBOX,
+ T1_FIELD_TYPE_MM_BBOX,
T1_FIELD_TYPE_INTEGER_ARRAY,
T1_FIELD_TYPE_FIXED_ARRAY,
T1_FIELD_TYPE_CALLBACK,
diff --git a/src/psaux/psobjs.c b/src/psaux/psobjs.c
index 06df6e6..6f84325 100644
--- a/src/psaux/psobjs.c
+++ b/src/psaux/psobjs.c
@@ -1027,12 +1027,13 @@
FT_UInt max_objects,
FT_ULong* pflags )
{
- T1_TokenRec token;
- FT_Byte* cur;
- FT_Byte* limit;
- FT_UInt count;
- FT_UInt idx;
- FT_Error error;
+ T1_TokenRec token;
+ FT_Byte* cur;
+ FT_Byte* limit;
+ FT_UInt count;
+ FT_UInt idx;
+ FT_Error error;
+ T1_FieldType type;
/* this also skips leading whitespace */
@@ -1045,8 +1046,10 @@
cur = token.start;
limit = token.limit;
+ type = field->type;
+
/* we must detect arrays in /FontBBox */
- if ( field->type == T1_FIELD_TYPE_BBOX )
+ if ( type == T1_FIELD_TYPE_BBOX )
{
T1_TokenRec token2;
FT_Byte* old_cur = parser->cursor;
@@ -1062,17 +1065,21 @@
parser->limit = old_limit;
if ( token2.type == T1_TOKEN_TYPE_ARRAY )
+ {
+ type = T1_FIELD_TYPE_MM_BBOX;
goto FieldArray;
+ }
}
else if ( token.type == T1_TOKEN_TYPE_ARRAY )
{
+ count = max_objects;
+
FieldArray:
/* if this is an array and we have no blend, an error occurs */
if ( max_objects == 0 )
goto Fail;
- count = max_objects;
- idx = 1;
+ idx = 1;
/* don't include delimiters */
cur++;
@@ -1088,7 +1095,7 @@
skip_spaces( &cur, limit );
- switch ( field->type )
+ switch ( type )
{
case T1_FIELD_TYPE_BOOL:
val = ps_tobool( &cur, limit );
@@ -1208,6 +1215,54 @@
}
break;
+ case T1_FIELD_TYPE_MM_BBOX:
+ {
+ FT_Memory memory = parser->memory;
+ FT_Fixed* temp;
+ FT_Int result;
+ FT_UInt i;
+
+
+ if ( FT_NEW_ARRAY( temp, max_objects * 4 ) )
+ goto Exit;
+
+ for ( i = 0; i < 4; i++ )
+ {
+ result = ps_tofixedarray( &cur, limit, max_objects,
+ temp + i * max_objects, 0 );
+ if ( result < 0 )
+ {
+ FT_ERROR(( "ps_parser_load_field:"
+ " expected %d integers in the %s subarray\n"
+ " "
+ " of /FontBBox in the /Blend dictionary\n",
+ max_objects,
+ i == 0 ? "first"
+ : ( i == 1 ? "second"
+ : ( i == 2 ? "third"
+ : "fourth" ) ) ));
+ error = PSaux_Err_Invalid_File_Format;
+ goto Exit;
+ }
+
+ skip_spaces( &cur, limit );
+ }
+
+ for ( i = 0; i < max_objects; i++ )
+ {
+ FT_BBox* bbox = (FT_BBox*)objects[i];
+
+
+ bbox->xMin = FT_RoundFix( temp[i ] );
+ bbox->yMin = FT_RoundFix( temp[i + max_objects] );
+ bbox->xMax = FT_RoundFix( temp[i + 2 * max_objects] );
+ bbox->yMax = FT_RoundFix( temp[i + 3 * max_objects] );
+ }
+
+ FT_FREE( temp );
+ }
+ break;
+
default:
/* an error occurred */
goto Fail;