Add ability to obfuscate name when generating GLSL/HLSL source (#1075)

3 files changed, 27 insertions, 7 deletions

diff --git a/source/slang/slang-compiler.h b/source/slang/slang-compiler.h
index ad90bb5ee..ebde8b6d3 100644
--- a/source/slang/slang-compiler.h
+++ b/source/slang/slang-compiler.h
@@ -1636,6 +1636,9 @@ namespace Slang
         //
         bool useUnknownImageFormatAsDefault = false;
 
+        // Remove name hints to help obfuscate code
+        //
+        bool obfuscateCode = false;
     private:
         RefPtr<ComponentType> m_program;
     };
diff --git a/source/slang/slang-emit-c-like.cpp b/source/slang/slang-emit-c-like.cpp
index 6b828085e..991540782 100644
--- a/source/slang/slang-emit-c-like.cpp
+++ b/source/slang/slang-emit-c-like.cpp
@@ -637,7 +637,7 @@ String CLikeSourceEmitter::generateName(IRInst* inst)
     //
     if(auto nameHintDecoration = inst->findDecoration<IRNameHintDecoration>())
     {
-        // The name we output will basically be:
+        // The (non-obfuscated) name we output will basically be:
         //
         //      <nameHint>_<uniqueID>
         //
@@ -645,15 +645,28 @@ String CLikeSourceEmitter::generateName(IRInst* inst)
         // and we will omit the underscore if the (scrubbed)
         // name hint already ends with one.
         //
-
-        String nameHint = nameHintDecoration->getName();
-        nameHint = scrubName(nameHint);
+        // The obfuscated name we output will simply be:
+        //
+        //      _<uniqueID>
+        //
 
         StringBuilder sb;
-        sb.append(nameHint);
 
-        // Avoid introducing a double underscore
-        if(!nameHint.endsWith("_"))
+        if (!m_compileRequest->obfuscateCode)
+        {
+
+            String nameHint = nameHintDecoration->getName();
+            nameHint = scrubName(nameHint);
+
+            sb.append(nameHint);
+
+            // Avoid introducing a double underscore
+            if (!nameHint.endsWith("_"))
+            {
+                sb.append("_");
+            }
+        }
+        else
         {
             sb.append("_");
         }
diff --git a/source/slang/slang-options.cpp b/source/slang/slang-options.cpp
index 94f82ef31..31a5c7c7f 100644
--- a/source/slang/slang-options.cpp
+++ b/source/slang/slang-options.cpp
@@ -775,6 +775,10 @@ struct OptionsParser
                 {
                     requestImpl->getBackEndReq()->useUnknownImageFormatAsDefault = true;
                 }
+                else if (argStr == "-obfuscate")
+                {
+                    requestImpl->getBackEndReq()->obfuscateCode = true;
+                }
                 else if (argStr == "-file-system")
                 {
                     String name;