Commit 75b91a49aa6438abc60366e90970e2fee8923f74

suzuki toshiya 2011-06-15T01:10:33

[gxvalid] Cleanup. Some invalid, overrunning, unrecommended non-zero values are cared in paranoid validation mode only. There are many lines looking like: if ( valid->root->level >= FT_VALIDATE_PARANOID ) FT_INVALID_xxx; To simplify them, GXV_SET_ERR_IF_PARANOID( err ) is introduced for more paranoid validation in future. * src/gxvalid/gxvcommn.h (IS_PARANOID_VALIDATION): New macro to assure valid->root->level is more or equal to FT_VALIDATE_PARANOID. (GXV_SET_ERR_IF_PARANOID): New macro to raise an error if in paranoid validation. * src/gxvalid/gxvcommn.c: Use GXV_SET_ERR_IF_PARANOID(). * src/gxvalid/gxvfeat.c: Ditto. * src/gxvalid/gxvjust.c: Ditto. * src/gxvalid/gxvkern.c: Ditto. * src/gxvalid/gxvmort.c: Ditto. * src/gxvalid/gxvmort0.c: Ditto. * src/gxvalid/gxvmort1.c: Ditto. * src/gxvalid/gxvmort2.c: Ditto. * src/gxvalid/gxvmorx1.c: Ditto. * src/gxvalid/gxvmorx2.c: Ditto.

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diff --git a/ChangeLog b/ChangeLog
index d2cca20..846bd30 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,34 @@
 2011-06-14  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
 
+	[gxvalid] Cleanup.
+
+	Some invalid, overrunning, unrecommended non-zero values
+	are cared in paranoid validation mode only.  There are
+	many lines looking like:
+
+	  if ( valid->root->level >= FT_VALIDATE_PARANOID )
+	    FT_INVALID_xxx;
+
+	To simplify them, GXV_SET_ERR_IF_PARANOID( err ) is
+	introduced for more paranoid validation in future.
+
+	* src/gxvalid/gxvcommn.h (IS_PARANOID_VALIDATION):
+	New macro to assure valid->root->level is more or
+	equal to FT_VALIDATE_PARANOID.  (GXV_SET_ERR_IF_PARANOID):
+	New macro to raise an error if in paranoid validation.
+	* src/gxvalid/gxvcommn.c: Use GXV_SET_ERR_IF_PARANOID().
+	* src/gxvalid/gxvfeat.c: Ditto.
+	* src/gxvalid/gxvjust.c: Ditto.
+	* src/gxvalid/gxvkern.c: Ditto.
+	* src/gxvalid/gxvmort.c: Ditto.
+	* src/gxvalid/gxvmort0.c: Ditto.
+	* src/gxvalid/gxvmort1.c: Ditto.
+	* src/gxvalid/gxvmort2.c: Ditto.
+	* src/gxvalid/gxvmorx1.c: Ditto.
+	* src/gxvalid/gxvmorx2.c: Ditto.
+
+2011-06-14  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
+
 	[gxvalid] Fix gcc4.6 compiler warnings in gxvtrak.c.
 
 	* src/gxvalid/gxvtrak.c (gxv_trak_trackTable_validate):
diff --git a/src/gxvalid/gxvcommn.c b/src/gxvalid/gxvcommn.c
index 211f972..d3c48d4 100644
--- a/src/gxvalid/gxvcommn.c
+++ b/src/gxvalid/gxvcommn.c
@@ -304,8 +304,7 @@
                   binSrchHeader->unitSize, binSrchHeader->nUnits,
                   searchRange, entrySelector, rangeShift ));
 
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
     }
   }
 
@@ -442,8 +441,7 @@
       {
         GXV_TRACE(( "too short, glyphs %d - %d are missing\n",
                     i, valid->face->num_glyphs ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_GLYPH_ID;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
         break;
       }
 
@@ -531,8 +529,7 @@
         GXV_TRACE(( "reverse ordered segment specification:"
                     " lastGlyph[%d]=%d < lastGlyph[%d]=%d\n",
                     unit, lastGlyph, unit - 1 , gid ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_GLYPH_ID;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
       }
 
       if ( lastGlyph < firstGlyph )
@@ -540,8 +537,7 @@
         GXV_TRACE(( "reverse ordered range specification at unit %d:",
                     " lastGlyph %d < firstGlyph %d ",
                     unit, lastGlyph, firstGlyph ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_GLYPH_ID;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
 
         if ( valid->root->level == FT_VALIDATE_TIGHT )
           continue;     /* ftxvalidator silently skips such an entry */
@@ -604,8 +600,7 @@
         GXV_TRACE(( "reverse ordered segment specification:"
                     " lastGlyph[%d]=%d < lastGlyph[%d]=%d\n",
                     unit, lastGlyph, unit - 1 , gid ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_GLYPH_ID;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
       }
 
       if ( lastGlyph < firstGlyph )
@@ -613,8 +608,7 @@
         GXV_TRACE(( "reverse ordered range specification at unit %d:",
                     " lastGlyph %d < firstGlyph %d ",
                     unit, lastGlyph, firstGlyph ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_GLYPH_ID;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
 
         if ( valid->root->level == FT_VALIDATE_TIGHT )
           continue; /* ftxvalidator silently skips such an entry */
@@ -705,8 +699,7 @@
       {
         GXV_TRACE(( "current gid 0x%04x < previous gid 0x%04x\n",
                     glyph, prev_glyph ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_GLYPH_ID;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
       }
       prev_glyph = glyph;
 
@@ -834,8 +827,7 @@
     {
       GXV_TRACE(( " gxv_glyphid_check() gid overflow: num_glyphs %d < %d\n",
                   face->num_glyphs, gid ));
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_GLYPH_ID;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
     }
 
     return 0;
@@ -1101,8 +1093,7 @@
 
     if ( ( maxEntry + 1 ) * entrySize > *length_p )
     {
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_TOO_SHORT;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_TOO_SHORT );
 
       /* ftxvalidator and FontValidator both warn and continue */
       maxEntry = (FT_Byte)( *length_p / entrySize - 1 );
@@ -1126,8 +1117,7 @@
       {
         GXV_TRACE(( " newState offset 0x%04x is out of stateArray\n",
                     newState ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_OFFSET;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
         continue;
       }
 
@@ -1135,8 +1125,7 @@
       {
         GXV_TRACE(( " newState offset 0x%04x is not aligned to %d-classes\n",
                     newState,  1 + maxClassID ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_OFFSET;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
         continue;
       }
 
@@ -1173,8 +1162,7 @@
         break;
 
       default:
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_FORMAT;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT );
         goto Exit;
       }
 
@@ -1503,8 +1491,7 @@
       {
         GXV_TRACE(( "  newState index 0x%04x points out of stateArray\n",
                     newState_idx ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_OFFSET;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
       }
 
       state = (FT_UShort)( newState_idx / ( 1 + maxClassID ) );
@@ -1513,8 +1500,7 @@
         FT_TRACE4(( "-> new state = %d (supposed)\n"
                     "but newState index 0x%04x is not aligned to %d-classes\n",
                     state, newState_idx,  1 + maxClassID ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_OFFSET;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
       }
 
       switch ( GXV_GLYPHOFFSET_FMT( xstatetable ) )
@@ -1548,8 +1534,7 @@
         break;
 
       default:
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_FORMAT;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT );
         goto Exit;
       }
 
diff --git a/src/gxvalid/gxvcommn.h b/src/gxvalid/gxvcommn.h
index 7dee792..35c043d 100644
--- a/src/gxvalid/gxvcommn.h
+++ b/src/gxvalid/gxvcommn.h
@@ -61,6 +61,8 @@ FT_BEGIN_HEADER
 
 #undef GXV_LOAD_UNUSED_VARS /* debug purpose */
 
+#define IS_PARANOID_VALIDATION          ( valid->root->level >= FT_VALIDATE_PARANOID )
+#define GXV_SET_ERR_IF_PARANOID( err )  { if ( IS_PARANOID_VALIDATION ) ( err ); }
 
   /*************************************************************************/
   /*************************************************************************/
diff --git a/src/gxvalid/gxvfeat.c b/src/gxvalid/gxvfeat.c
index 002fec6..46792bb 100644
--- a/src/gxvalid/gxvfeat.c
+++ b/src/gxvalid/gxvfeat.c
@@ -92,8 +92,7 @@
     {
       GXV_TRACE(( "feature number %d is out of range %d\n",
                   feature, gxv_feat_registry_length ));
-      if ( valid->root->level == FT_VALIDATE_PARANOID )
-        FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
       goto Exit;
     }
 
@@ -101,8 +100,7 @@
     {
       GXV_TRACE(( "feature number %d is in defined range but doesn't exist\n",
                   feature ));
-      if ( valid->root->level == FT_VALIDATE_PARANOID )
-        FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
       goto Exit;
     }
 
@@ -222,9 +220,8 @@
     if ( settingTable < reserved_size )
       FT_INVALID_OFFSET;
 
-    if ( valid->root->level == FT_VALIDATE_PARANOID   &&
-         ( featureFlags & GXV_FEAT_MASK_UNUSED ) == 0 )
-      FT_INVALID_DATA;
+    if ( ( featureFlags & GXV_FEAT_MASK_UNUSED ) == 0 )
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
 
     exclusive = FT_BOOL( featureFlags & GXV_FEAT_MASK_EXCLUSIVE_SETTINGS );
     if ( exclusive )
@@ -252,9 +249,8 @@
     {
       gxv_feat_setting_validate( p, limit, exclusive, valid );
 
-      if ( valid->root->level == FT_VALIDATE_PARANOID       &&
-           (FT_Int)GXV_FEAT_DATA( setting ) <= last_setting )
-        FT_INVALID_FORMAT;
+      if ( (FT_Int)GXV_FEAT_DATA( setting ) <= last_setting )
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT );
 
       last_setting = (FT_Int)GXV_FEAT_DATA( setting );
       /* setting + nameIndex */
@@ -312,8 +308,8 @@
     featureNameCount = FT_NEXT_USHORT( p );
     GXV_TRACE(( " (featureNameCount = %d)\n", featureNameCount ));
 
-    if ( valid->root->level != FT_VALIDATE_PARANOID )
-      p += 6;                   /* skip (none) and (none) */
+    if ( !( IS_PARANOID_VALIDATION ) )
+      p += 6; /* skip (none) and (none) */
     else
     {
       if ( FT_NEXT_USHORT( p ) != 0 )
@@ -329,9 +325,8 @@
     {
       gxv_feat_name_validate( p, limit, valid );
 
-      if ( valid->root->level == FT_VALIDATE_PARANOID       &&
-           (FT_Int)GXV_FEAT_DATA( feature ) <= last_feature )
-        FT_INVALID_FORMAT;
+      if ( (FT_Int)GXV_FEAT_DATA( feature ) <= last_feature )
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_FORMAT );
 
       last_feature = GXV_FEAT_DATA( feature );
       p += 2 + 2 + 4 + 2 + 2;
diff --git a/src/gxvalid/gxvjust.c b/src/gxvalid/gxvjust.c
index ed4f1e9..7816e0b 100644
--- a/src/gxvalid/gxvjust.c
+++ b/src/gxvalid/gxvjust.c
@@ -77,8 +77,7 @@
     GXV_TRACE(( "just table includes too large %s"
                 " GID=%d > %d (in maxp)\n",
                 msg_tag, gid, valid->face->num_glyphs ));
-    if ( valid->root->level >= FT_VALIDATE_PARANOID )
-      FT_INVALID_GLYPH_ID;
+    GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
   }
 
 
@@ -113,13 +112,12 @@
 #endif
 
     /* According to Apple spec, only 7bits in justClass is used */
-    if ( valid->root->level >= FT_VALIDATE_PARANOID &&
-         ( justClass & 0xFFFFFF80 ) != 0            )
+    if ( ( justClass & 0xFFFFFF80 ) != 0 )
     {
       GXV_TRACE(( "just table includes non-zero value"
                   " in unused justClass higher bits"
                   " of WidthDeltaPair" ));
-      FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
     }
 
     valid->subtable_length = p - table;
@@ -202,12 +200,11 @@
 #endif
     decomposedCount = FT_NEXT_USHORT( p );
 
-    if ( valid->root->level >= FT_VALIDATE_PARANOID &&
-         lowerLimit >= upperLimit                   )
+    if ( lowerLimit >= upperLimit )
     {
       GXV_TRACE(( "just table includes invalid range spec:"
                   " lowerLimit(%d) > upperLimit(%d)\n"     ));
-      FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
     }
 
     for ( i = 0; i < decomposedCount; i++ )
@@ -303,7 +300,7 @@
     else if ( noStretchValue > maximumLimit )
       GXV_TRACE(( "type4:noStretchValue 0x%08x > maximumLimit 0x%08x\n",
                   noStretchValue, maximumLimit ));
-    else if ( valid->root->level < FT_VALIDATE_PARANOID )
+    else if ( !IS_PARANOID_VALIDATION )
       return;
 
     FT_INVALID_DATA;
@@ -353,9 +350,8 @@
     actionLength = FT_NEXT_ULONG( p );
 
     /* actionClass is related with justClass using 7bit only */
-    if ( valid->root->level >= FT_VALIDATE_PARANOID &&
-         ( actionClass & 0xFF80 ) != 0              )
-      FT_INVALID_DATA;
+    if ( ( actionClass & 0xFF80 ) != 0 )
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
 
     if ( actionType == 0 )
       gxv_just_actSubrecord_type0_validate( p, limit, valid );
diff --git a/src/gxvalid/gxvkern.c b/src/gxvalid/gxvkern.c
index 8a4f30d..0ec978f 100644
--- a/src/gxvalid/gxvkern.c
+++ b/src/gxvalid/gxvkern.c
@@ -491,8 +491,7 @@
     {
       GXV_TRACE(( "maxGID=%d, but glyphCount=%d\n",
                   valid->face->num_glyphs, glyphCount ));
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_GLYPH_ID;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
     }
 
     if ( flags != 0 )
diff --git a/src/gxvalid/gxvmort.c b/src/gxvalid/gxvmort.c
index 50393b9..465462a 100644
--- a/src/gxvalid/gxvmort.c
+++ b/src/gxvalid/gxvmort.c
@@ -47,16 +47,14 @@
       GXV_TRACE(( "featureType %d is out of registered range, "
                   "setting %d is unchecked\n",
                   f->featureType, f->featureSetting ));
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
     }
     else if ( !gxv_feat_registry[f->featureType].existence )
     {
       GXV_TRACE(( "featureType %d is within registered area "
                   "but undefined, setting %d is unchecked\n",
                   f->featureType, f->featureSetting ));
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
     }
     else
     {
@@ -74,8 +72,7 @@
       if ( f->featureSetting > nSettings_max )
       {
         GXV_TRACE(( "out of defined range %d", nSettings_max ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_DATA;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
       }
       GXV_TRACE(( "\n" ));
     }
diff --git a/src/gxvalid/gxvmort0.c b/src/gxvalid/gxvmort0.c
index 65606ad..b136ced 100644
--- a/src/gxvalid/gxvmort0.c
+++ b/src/gxvalid/gxvmort0.c
@@ -102,23 +102,20 @@
     {
       GXV_TRACE(( "  [odd] a glyph is marked as the first and last"
                   "  in Indic rearrangement\n" ));
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
     }
 
     if ( markFirst > 0 && dontAdvance > 0 )
     {
       GXV_TRACE(( "  [odd] the first glyph is marked as dontAdvance"
                   " in Indic rearrangement\n" ));
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
     }
 
     if ( 0 < reserved )
     {
       GXV_TRACE(( " non-zero bits found in reserved range\n" ));
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
     }
     else
       GXV_TRACE(( "\n" ));
diff --git a/src/gxvalid/gxvmort1.c b/src/gxvalid/gxvmort1.c
index 512f6a9..1c17a5d 100644
--- a/src/gxvalid/gxvmort1.c
+++ b/src/gxvalid/gxvmort1.c
@@ -163,8 +163,7 @@
     if ( 0 < reserved )
     {
       GXV_TRACE(( " non-zero bits found in reserved range\n" ));
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
     }
 
     gxv_mort_subtable_type1_offset_to_subst_validate( markOffset,
@@ -208,8 +207,7 @@
         GXV_TRACE(( "substTable include a strange gid[%d]=%d >"
                     " out of define range (%d..%d)\n",
                     i, dst_gid, valid->min_gid, valid->max_gid ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_GLYPH_ID;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
       }
     }
 
diff --git a/src/gxvalid/gxvmort2.c b/src/gxvalid/gxvmort2.c
index 97a1f60..9e08fb7 100644
--- a/src/gxvalid/gxvmort2.c
+++ b/src/gxvalid/gxvmort2.c
@@ -155,8 +155,7 @@
                   ligActionOffset, lat_base - p ));
 
       /* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_OFFSET;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
     }
     else if ( lat_limit < p )
     {
@@ -164,8 +163,7 @@
                   ligActionOffset, p - lat_limit ));
 
       /* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_OFFSET;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
     }
     else
     {
@@ -192,8 +190,7 @@
                     " 2 x offset < ligatureTable (%d byte rewind)\n",
                      offset, optdata->ligatureTable - offset * 2 ));
 
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_OFFSET;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
       } else if ( offset * 2 >
                   optdata->ligatureTable + optdata->ligatureTable_length )
       {
@@ -204,8 +201,7 @@
                      optdata->ligatureTable + optdata->ligatureTable_length
                      - offset * 2 ));
 
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_OFFSET;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
       }
     }
   }
@@ -268,9 +264,8 @@
         GXV_LIMIT_CHECK( 2 );
         lig_gid = FT_NEXT_USHORT( p );
 
-        if ( valid->root->level >= FT_VALIDATE_PARANOID &&
-             valid->face->num_glyphs < lig_gid          )
-          FT_INVALID_GLYPH_ID;
+        if ( valid->face->num_glyphs < lig_gid )
+          GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
       }
     }
     GXV_EXIT;
diff --git a/src/gxvalid/gxvmorx1.c b/src/gxvalid/gxvmorx1.c
index 337e297..ce0009a 100644
--- a/src/gxvalid/gxvmorx1.c
+++ b/src/gxvalid/gxvmorx1.c
@@ -140,8 +140,7 @@
     if ( 0 < reserved )
     {
       GXV_TRACE(( " non-zero bits found in reserved range\n" ));
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_DATA;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
     }
 
     GXV_TRACE(( "markIndex = %d, currentIndex = %d\n",
diff --git a/src/gxvalid/gxvmorx2.c b/src/gxvalid/gxvmorx2.c
index feec66c..bc18c6b 100644
--- a/src/gxvalid/gxvmorx2.c
+++ b/src/gxvalid/gxvmorx2.c
@@ -194,8 +194,7 @@
                     " too negative offset moving all GID"
                     " below defined range: 0x%04x\n",
                     offset & 0xFFFFU ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_OFFSET;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
       }
       else if ( ( offset & 0x3FFF0000UL ) == 0x0000000UL )
       {
@@ -206,15 +205,13 @@
                     " too large offset moving all GID"
                     " over defined range: 0x%04x\n",
                     offset & 0xFFFFU ));
-        if ( valid->root->level >= FT_VALIDATE_PARANOID )
-          FT_INVALID_OFFSET;
+        GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
       }
 
       GXV_TRACE(( "ligature action table includes"
                   " invalid offset to add to 16-bit GID:"
                   " 0x%08x\n", offset ));
-      if ( valid->root->level >= FT_VALIDATE_PARANOID )
-        FT_INVALID_OFFSET;
+      GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
     }
   }
 
@@ -282,9 +279,8 @@
 
         GXV_LIMIT_CHECK( 2 );
         lig_gid = FT_NEXT_USHORT( p );
-        if ( valid->root->level >= FT_VALIDATE_PARANOID &&
-             lig_gid < valid->face->num_glyphs          )
-          FT_INVALID_GLYPH_ID;
+        if ( lig_gid < valid->face->num_glyphs )
+          GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
       }
     }