Merge pull request #385 from steve-lunarg/inout-qualifiers

HLSL: add in/out/inout qualifiers

hlsl/hlslGrammar.cpp

@@ -478,6 +478,15 @@ void HlslGrammar::acceptQualifier(TQualifier& qualifier)
         case EHTokPrecise:
             qualifier.noContraction = true;
             break;
+        case EHTokIn:
+            qualifier.storage = EvqIn;
+            break;
+        case EHTokOut:
+            qualifier.storage = EvqOut;
+            break;
+        case EHTokInOut:
+            qualifier.storage = EvqInOut;
+            break;
         default:
             return;
         }

hlsl/hlslScanContext.cpp

@@ -114,6 +114,9 @@ void HlslScanContext::fillInKeywordMap()
     (*KeywordMap)["row_major"] =               EHTokRowMajor;
     (*KeywordMap)["column_major"] =            EHTokColumnMajor;
     (*KeywordMap)["packoffset"] =              EHTokPackOffset;
+    (*KeywordMap)["in"] =                      EHTokIn;
+    (*KeywordMap)["out"] =                     EHTokOut;
+    (*KeywordMap)["inout"] =                   EHTokInOut;
 
     (*KeywordMap)["Buffer"] =                  EHTokBuffer;
     (*KeywordMap)["vector"] =                  EHTokVector;
@@ -449,6 +452,9 @@ EHlslTokenClass HlslScanContext::tokenizeIdentifier()
     case EHTokRowMajor:
     case EHTokColumnMajor:
     case EHTokPackOffset:
+    case EHTokIn:
+    case EHTokOut:
+    case EHTokInOut:
         return keyword;
 
     // template types

hlsl/hlslTokens.h

@@ -61,6 +61,9 @@ enum EHlslTokenClass {
     EHTokRowMajor,
     EHTokColumnMajor,
     EHTokPackOffset,
+    EHTokIn,
+    EHTokOut,
+    EHTokInOut,
 
     // template types
     EHTokBuffer,