Commit a2c7eb188892c6f02cd10cfa814672f3f2820ca8
2013-02-07T19:49:12
* 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.
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diff --git a/ChangeLog b/ChangeLog
index f78667d..b42df16 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2013-02-07 Werner Lemberg <wl@gnu.org>
+
+ * 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 <wl@gnu.org>
* src/truetype/ttobjs.c (tt_size_run_prep): Reset reference points.
diff --git a/src/truetype/ttobjs.c b/src/truetype/ttobjs.c
index 9b828c3..814badd 100644
--- a/src/truetype/ttobjs.c
+++ b/src/truetype/ttobjs.c
@@ -878,11 +878,26 @@
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;