ref: d55a701de60f559d27f5106cddb50884fed00bf7
parent: 9668255965bb61df1f217b353ff1e5ed609d15f7
author: Ewald Hew <[email protected]>
date: Mon Sep 25 03:59:41 EDT 2017
Extend Adobe interpreter (flex in callothersubr). * src/psaux/psintrp.c (cf2_interpT2CharString) <cf2_escCALLOTHERSUBR>: Fix Flex feature handling (OtherSubrs 0, 1, 2). <cf2_cmdRMOVETO>: Do not actually move the `glyphPath' while doing flex. This is to avoid closing the current contour.
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,15 @@
2017-09-25 Ewald Hew <[email protected]>
+ [psaux] Extend Adobe interpreter (flex in callothersubr).
+
+ * src/psaux/psintrp.c (cf2_interpT2CharString)
+ <cf2_escCALLOTHERSUBR>: Fix Flex feature handling (OtherSubrs 0, 1,
+ 2).
+ <cf2_cmdRMOVETO>: Do not actually move the `glyphPath' while doing
+ flex. This is to avoid closing the current contour.
+
+2017-09-25 Ewald Hew <[email protected]>
+
[psaux] Extend Adobe interpreter (callothersubr).
* src/psaux/psintrp.c (cf2_interpT2CharString)
--- a/src/psaux/psintrp.c
+++ b/src/psaux/psintrp.c
@@ -503,6 +503,7 @@
FT_Byte op1; /* first opcode byte */
CF2_F16Dot16 storage[CF2_STORAGE_SIZE]; /* for `put' and `get' */
+ CF2_F16Dot16 flexStore[6]; /* for Type 1 flex */
/* instruction limit; 20,000,000 matches Avalon */
FT_UInt32 instructionLimit = 20000000UL;
@@ -526,6 +527,7 @@
FT_ZERO( &storage );
FT_ZERO( &results );
+ FT_ZERO( &flexStore );
/* initialize the remaining objects */
cf2_arrstack_init( &subrStack,
@@ -1518,8 +1520,7 @@
if ( arg_cnt != 0 )
goto Unexpected_OtherSubr;
- if ( ps_builder_start_point( &decoder->builder, curX, curY ) ||
- ps_builder_check_points( &decoder->builder, 6 ) )
+ if ( ps_builder_check_points( &decoder->builder, 6 ) )
goto exit;
decoder->flex_state = 1;
@@ -1529,6 +1530,7 @@
case 2: /* add flex vectors */
{FT_Int idx;
+ FT_Int idx2;
if ( arg_cnt != 0 )
@@ -1558,10 +1560,20 @@
goto exit;
}
- ps_builder_add_point( &decoder->builder,
- curX,
- curY,
- (FT_Byte)( idx == 3 || idx == 6 ) );
+ /* map: 1->2 2->4 3->6 4->2 5->4 6->6 */
+ idx2 = ( idx > 3 ? idx - 3 : idx ) * 2;
+
+ flexStore[idx2 - 2] = curX;
+ flexStore[idx2 - 1] = curY;
+
+ if ( idx == 3 || idx == 6 )
+ cf2_glyphpath_curveTo( &glyphPath,
+ flexStore[0],
+ flexStore[1],
+ flexStore[2],
+ flexStore[3],
+ flexStore[4],
+ flexStore[5] );
}
}
break;
@@ -2371,7 +2383,8 @@
curY = ADD_INT32( curY, cf2_stack_popFixed( opStack ) );
curX = ADD_INT32( curX, cf2_stack_popFixed( opStack ) );
- cf2_glyphpath_moveTo( &glyphPath, curX, curY );
+ if ( !decoder->flex_state )
+ cf2_glyphpath_moveTo( &glyphPath, curX, curY );
break;