HLSL: Fix #1106. Support shader setting of binding/set for $Global.

hlsl/hlslAttributes.cpp

@@ -58,6 +58,8 @@ namespace glslang {
                 return EatLocation;
             else if (lowername == "binding")
                 return EatBinding;
+            else if (lowername == "global_cbuffer_binding")
+                return EatGlobalBinding;
         } else if (lowernameSpace.size() > 0)
             return EatNone;
 

hlsl/hlslAttributes.h

@@ -64,6 +64,7 @@ namespace glslang {
         EatUnroll,
         EatLoop,
         EatBinding,
+        EatGlobalBinding,
         EatLocation,
         EatInputAttachment
     };

hlsl/hlslParseHelper.cpp

@@ -1869,6 +1869,14 @@ void HlslParseContext::transferTypeAttributes(const TAttributeMap& attributes, T
     if (attributes.getInt(EatBinding, value, 1))
         type.getQualifier().layoutSet = value;
 
+    // global cbuffer binding
+    if (attributes.getInt(EatGlobalBinding, value))
+        globalUniformBinding = value;
+
+    // global cbuffer binding
+    if (attributes.getInt(EatGlobalBinding, value, 1))
+        globalUniformSet = value;
+
     // input attachment
     if (attributes.getInt(EatInputAttachment, value))
         type.getQualifier().layoutAttachment = value;

hlsl/hlslParseHelper.h

@@ -187,7 +187,8 @@ public:
     void pushSwitchSequence(TIntermSequence* sequence) { switchSequenceStack.push_back(sequence); }
     void popSwitchSequence() { switchSequenceStack.pop_back(); }
 
-    virtual void growGlobalUniformBlock(const TSourceLoc&, TType&, const TString& memberName, TTypeList* typeList = nullptr) override;
+    virtual void growGlobalUniformBlock(const TSourceLoc&, TType&, const TString& memberName,
+        TTypeList* typeList = nullptr) override;
 
     // Apply L-value conversions.  E.g, turning a write to a RWTexture into an ImageStore.
     TIntermTyped* handleLvalue(const TSourceLoc&, const char* op, TIntermTyped*& node);