shithub: freetype+ttf2subf

Download patch

ref: a2c7eb188892c6f02cd10cfa814672f3f2820ca8
parent: bfcc375b06e26cb85e7a74b51f8d1e7915ca7457
author: Werner Lemberg <[email protected]>
date: Thu Feb 7 14:49:12 EST 2013

* src/truetype/ttobjs.c (tt_size_run_prep): Reset more GS variables.

BTW, Greg agrees that the OpenType specification is missing the list
of GS variables which will always be reset to the default values
after the `prep' table has been executed.

git/fs: mount .git/fs: mount/attach disallowed
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2013-02-07  Werner Lemberg  <[email protected]>
+
+	* src/truetype/ttobjs.c (tt_size_run_prep): Reset more GS variables.
+
+	BTW, Greg agrees that the OpenType specification is missing the list
+	of GS variables which will always be reset to the default values
+	after the `prep' table has been executed.
+
 2013-02-06  Werner Lemberg  <[email protected]>
 
 	* src/truetype/ttobjs.c (tt_size_run_prep): Reset reference points.
--- a/src/truetype/ttobjs.c
+++ b/src/truetype/ttobjs.c
@@ -878,10 +878,25 @@
     else
       error = TT_Err_Ok;
 
-    /* UNDOCUMENTED!  Reference points are reset to zero. */
+    /* UNDOCUMENTED!  The MS rasterizer doesn't allow the following */
+    /* graphics state variables to be modified by the CVT program.  */
+
+    exec->GS.dualVector.x = 0x4000;
+    exec->GS.dualVector.y = 0;
+    exec->GS.projVector.x = 0x4000;
+    exec->GS.projVector.y = 0x0;
+    exec->GS.freeVector.x = 0x4000;
+    exec->GS.freeVector.y = 0x0;
+
     exec->GS.rp0 = 0;
     exec->GS.rp1 = 0;
     exec->GS.rp2 = 0;
+
+    exec->GS.gep0 = 1;
+    exec->GS.gep1 = 1;
+    exec->GS.gep2 = 1;
+
+    exec->GS.loop = 1;
 
     /* save as default graphics state */
     size->GS = exec->GS;