[pango/harfbuzz-ng] [GPOS] Implement Device support in AnchorFormat3

[Behdad Esfahbod <behdad src gnome org>]

commit 164137a18e4b10c240c8d63bf676872cfdc934c3
Author: Behdad Esfahbod <behdad behdad org>
Date:   Thu May 21 04:54:01 2009 -0400

    [GPOS] Implement Device support in AnchorFormat3
---
 pango/opentype/hb-ot-layout-gpos-private.h |   11 ++++++++---
 1 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/pango/opentype/hb-ot-layout-gpos-private.h b/pango/opentype/hb-ot-layout-gpos-private.h
index a769004..3d12b36 100644
--- a/pango/opentype/hb-ot-layout-gpos-private.h
+++ b/pango/opentype/hb-ot-layout-gpos-private.h
@@ -176,9 +176,14 @@ struct AnchorFormat3
   inline void get_anchor (hb_ot_layout_t *layout, hb_codepoint_t glyph_id,
 			  hb_position_t *x, hb_position_t *y) const
   {
-      /* TODO Device */
-      *x += layout->gpos_info.x_scale * xCoordinate / 0x10000;
-      *y += layout->gpos_info.y_scale * yCoordinate / 0x10000;
+      *x = layout->gpos_info.x_scale * xCoordinate / 0x10000;
+      *y = layout->gpos_info.y_scale * yCoordinate / 0x10000;
+
+      if (!layout->gpos_info.dvi)
+      {
+	*x += (this+xDeviceTable).get_delta (layout->gpos_info.x_ppem) << 6;
+	*y += (this+yDeviceTable).get_delta (layout->gpos_info.y_ppem) << 6;
+      }
   }
 
   private: