diff --git a/ChangeLog b/ChangeLog
index a53d7dc54..b282e4f00 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,20 @@
+2013-12-11  Infinality  <infinality@infinality.net>
+
+	[truetype] Simplify logic of rendering modes.
+
+	This patch unifies the subpixel and non-subpixel cases.
+
+	* src/truetype/ttinterp.h (TT_ExecContextRec): Remove
+	`grayscale_hinting'; all code should refer to `grayscale' instead.
+	Remove unused `native_hinting' member.
+	Rename `subpixel_hinting' member to `subpixel.
+
+	* src/truetype/ttgload.c (TT_LOADER_SET_PP): Updated.
+	(tt_loader_init): Updated.
+
+	* src/truetype/ttinterp.c (Ins_GETINFO): Simplify.
+	Updated.
+
 2013-12-11  Werner Lemberg  <wl@gnu.org>
 
 	[documentation] Add section how to include FreeType header files.
diff --git a/src/truetype/ttgload.c b/src/truetype/ttgload.c
index 1f82a1d42..b10e39026 100644
--- a/src/truetype/ttgload.c
+++ b/src/truetype/ttgload.c
@@ -1352,12 +1352,10 @@
 #define TT_LOADER_SET_PP( loader )                                          \
           do                                                                \
           {                                                                 \
-            FT_Bool  subpixel_  = loader->exec                              \
-                                    ? loader->exec->subpixel_hinting        \
-                                    : 0;                                    \
-            FT_Bool  grayscale_ = loader->exec                              \
-                                    ? loader->exec->grayscale_hinting       \
-                                    : 0;                                    \
+            FT_Bool  subpixel_  = loader->exec ? loader->exec->subpixel     \
+                                               : 0;                         \
+            FT_Bool  grayscale_ = loader->exec ? loader->exec->grayscale    \
+                                               : 0;                         \
             FT_Bool  use_aw_2_  = (FT_Bool)( subpixel_ && grayscale_ );     \
                                                                             \
                                                                             \
@@ -2108,8 +2106,7 @@
 #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
       TT_Driver  driver = (TT_Driver)FT_FACE_DRIVER( face );
 
-      FT_Bool  subpixel_hinting  = FALSE;
-      FT_Bool  grayscale_hinting = TRUE;
+      FT_Bool  subpixel = FALSE;
 
 #if 0
       /* not used yet */
@@ -2142,24 +2139,24 @@
 
       if ( driver->interpreter_version == TT_INTERPRETER_VERSION_38 )
       {
-        subpixel_hinting = FT_BOOL( ( FT_LOAD_TARGET_MODE( load_flags )
-                                      != FT_RENDER_MODE_MONO )          &&
-                                    SPH_OPTION_SET_SUBPIXEL             );
+        subpixel = FT_BOOL( ( FT_LOAD_TARGET_MODE( load_flags ) !=
+                              FT_RENDER_MODE_MONO               )  &&
+                            SPH_OPTION_SET_SUBPIXEL                );
 
-        if ( subpixel_hinting )
-          grayscale = grayscale_hinting = FALSE;
+        if ( subpixel )
+          grayscale = FALSE;
         else if ( SPH_OPTION_SET_GRAYSCALE )
         {
-          grayscale = grayscale_hinting = TRUE;
-          subpixel_hinting              = FALSE;
+          grayscale = TRUE;
+          subpixel  = FALSE;
         }
         else
-          grayscale = grayscale_hinting = FALSE;
+          grayscale = FALSE;
 
         if ( FT_IS_TRICKY( glyph->face ) )
-          subpixel_hinting = grayscale_hinting = FALSE;
+          subpixel = FALSE;
 
-        exec->ignore_x_mode      = subpixel_hinting || grayscale_hinting;
+        exec->ignore_x_mode      = subpixel || grayscale;
         exec->rasterizer_version = SPH_OPTION_SET_RASTERIZER_VERSION;
         if ( exec->sph_tweak_flags & SPH_TWEAK_RASTERIZER_35 )
           exec->rasterizer_version = TT_INTERPRETER_VERSION_35;
@@ -2202,24 +2199,24 @@
       {
         /* a change from mono to subpixel rendering (and vice versa) */
         /* requires a re-execution of the CVT program                */
-        if ( subpixel_hinting != exec->subpixel_hinting )
+        if ( subpixel != exec->subpixel )
         {
           FT_TRACE4(( "tt_loader_init: subpixel hinting change,"
                       " re-executing `prep' table\n" ));
 
-          exec->subpixel_hinting = subpixel_hinting;
-          reexecute              = TRUE;
+          exec->subpixel = subpixel;
+          reexecute      = TRUE;
         }
 
         /* a change from mono to grayscale rendering (and vice versa) */
         /* requires a re-execution of the CVT program                 */
-        if ( grayscale != exec->grayscale_hinting )
+        if ( grayscale != exec->grayscale )
         {
           FT_TRACE4(( "tt_loader_init: grayscale hinting change,"
                       " re-executing `prep' table\n" ));
 
-          exec->grayscale_hinting = grayscale_hinting;
-          reexecute               = TRUE;
+          exec->grayscale = grayscale;
+          reexecute       = TRUE;
         }
       }
       else
diff --git a/src/truetype/ttinterp.c b/src/truetype/ttinterp.c
index 92e6d43b6..3f110c28c 100644
--- a/src/truetype/ttinterp.c
+++ b/src/truetype/ttinterp.c
@@ -7820,13 +7820,6 @@
          CUR.ignore_x_mode                                   &&
          CUR.rasterizer_version >= TT_INTERPRETER_VERSION_35 )
     {
-      /********************************/
-      /* HINTING FOR GRAYSCALE        */
-      /* Selector Bit:  5             */
-      /* Return Bit(s): 12            */
-      /*                              */
-      if ( ( args[0] & 32 ) != 0 && CUR.grayscale_hinting )
-        K |= 1 << 12;
 
       if ( CUR.rasterizer_version >= 37 )
       {
@@ -7835,7 +7828,7 @@
         /* Selector Bit:  6             */
         /* Return Bit(s): 13            */
         /*                              */
-        if ( ( args[0] & 64 ) != 0 && CUR.subpixel_hinting )
+        if ( ( args[0] & 64 ) != 0 && CUR.subpixel )
           K |= 1 << 13;
 
         /********************************/
diff --git a/src/truetype/ttinterp.h b/src/truetype/ttinterp.h
index b3916acb6..1d8825d3b 100644
--- a/src/truetype/ttinterp.h
+++ b/src/truetype/ttinterp.h
@@ -263,12 +263,10 @@ FT_BEGIN_HEADER
 #ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
     TT_Round_Func      func_round_sphn;   /* subpixel rounding function */
 
-    FT_Bool            grayscale_hinting; /* Using grayscale hinting?      */
-    FT_Bool            subpixel_hinting;  /* Using subpixel hinting?       */
-    FT_Bool            native_hinting;    /* Using native hinting?         */
+    FT_Bool            subpixel;          /* Using subpixel hinting?       */
     FT_Bool            ignore_x_mode;     /* Standard rendering mode for   */
                                           /* subpixel hinting.  On if gray */
-                                          /* or subpixel hinting is on )   */
+                                          /* or subpixel hinting is on.    */
 
     /* The following 4 aren't fully implemented but here for MS rasterizer */
     /* compatibility.                                                      */