Add support for `spirv_literal` (#2227)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Add SPIRVLiteralType, to mark types that have spirv_literal in function parameter output.

* Update test result.

Co-authored-by: Theresa Foley <10618364+tangent-vector@users.noreply.github.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/source/slang/slang-emit-glsl.cpp b/source/slang/slang-emit-glsl.cpp
index 5b2ae6d19..7578a2dd5 100644
--- a/source/slang/slang-emit-glsl.cpp
+++ b/source/slang/slang-emit-glsl.cpp
@@ -1845,10 +1845,15 @@ void GLSLSourceEmitter::emitParamTypeImpl(IRType* type, String const& name)
 {
     if (auto refType = as<IRRefType>(type))
     {
-        // 
-        m_writer->emit("spirv_by_reference  ");
+        m_writer->emit("spirv_by_reference ");
         type = refType->getValueType();
     }
+    else if (auto spirvLiteralType = as<IRSPIRVLiteralType>(type))
+    {
+        m_writer->emit("spirv_literal ");
+        type = spirvLiteralType->getValueType();
+    }
+
     Super::emitParamTypeImpl(type, name);
 }