Support dynamic existential shader parameters in render-test (#1525)

* Support dynamic existential shader parameters in render-test

* Fix linux build error.

* Fixes.

* Fix code review issues.

* Fix gcc error.

* More fixes.

* More fixes.

5 files changed, 19 insertions, 10 deletions

diff --git a/source/core/slang-platform.cpp b/source/core/slang-platform.cpp
index d02951e0b..10b9b576b 100644
--- a/source/core/slang-platform.cpp
+++ b/source/core/slang-platform.cpp
@@ -128,10 +128,10 @@ SLANG_COMPILE_TIME_ASSERT(E_OUTOFMEMORY == SLANG_E_OUT_OF_MEMORY);
     ::FreeLibrary((HMODULE)handle);
 }
 
-/* static */SharedLibrary::FuncPtr SharedLibrary::findFuncByName(Handle handle, char const* name)
+/* static */ void* SharedLibrary::findSymbolAddressByName(Handle handle, char const* name)
 {
     SLANG_ASSERT(handle);
-    return (FuncPtr)GetProcAddress((HMODULE)handle, name);
+    return GetProcAddress((HMODULE)handle, name);
 }
 
 /* static */void SharedLibrary::appendPlatformFileName(const UnownedStringSlice& name, StringBuilder& dst)
@@ -173,10 +173,10 @@ SLANG_COMPILE_TIME_ASSERT(E_OUTOFMEMORY == SLANG_E_OUT_OF_MEMORY);
 	dlclose(handle);
 }
 
-/* static */SharedLibrary::FuncPtr SharedLibrary::findFuncByName(Handle handle, char const* name)
+/* static */void* SharedLibrary::findSymbolAddressByName(Handle handle, char const* name)
 {
     SLANG_ASSERT(handle);
-	return (FuncPtr)dlsym((void*)handle, name);
+	return dlsym((void*)handle, name);
 }
 
 /* static */void SharedLibrary::appendPlatformFileName(const UnownedStringSlice& name, StringBuilder& dst)
diff --git a/source/core/slang-platform.h b/source/core/slang-platform.h
index 767e83c1d..804e2b773 100644
--- a/source/core/slang-platform.h
+++ b/source/core/slang-platform.h
@@ -93,10 +93,10 @@ namespace Slang
             /// @param The valid handle returned from load 
         static void unload(Handle handle);
 
-            /// Given a shared library handle and a name, return the associated function
-            /// Return nullptr if function is not found
+            /// Given a shared library handle and a name, return the associated object
+            /// Return nullptr if object is not found
             /// @param The shared library handle as returned by loadPlatformLibrary
-        static FuncPtr findFuncByName(Handle handle, char const* name);
+        static void* findSymbolAddressByName(Handle handle, char const* name);
 
             /// Append to the end of dst, the name, with any platform specific additions
             /// The input name should be unadorned with any 'lib' prefix or extension
diff --git a/source/core/slang-shared-library.cpp b/source/core/slang-shared-library.cpp
index b09f345c7..746e14e4c 100644
--- a/source/core/slang-shared-library.cpp
+++ b/source/core/slang-shared-library.cpp
@@ -82,9 +82,9 @@ DefaultSharedLibrary::~DefaultSharedLibrary()
     }
 }
 
-SlangFuncPtr DefaultSharedLibrary::findFuncByName(char const* name)
+void* DefaultSharedLibrary::findSymbolAddressByName(char const* name)
 {
-    return SharedLibrary::findFuncByName(m_sharedLibraryHandle, name); 
+    return SharedLibrary::findSymbolAddressByName(m_sharedLibraryHandle, name);
 }
 
 } 
diff --git a/source/core/slang-shared-library.h b/source/core/slang-shared-library.h
index 0b5c5b2d7..c29f16289 100644
--- a/source/core/slang-shared-library.h
+++ b/source/core/slang-shared-library.h
@@ -52,7 +52,7 @@ class DefaultSharedLibrary : public ISlangSharedLibrary, public RefObject
     SLANG_REF_OBJECT_IUNKNOWN_ALL
 
     // ISlangSharedLibrary
-    virtual SLANG_NO_THROW SlangFuncPtr SLANG_MCALL findFuncByName(char const* name) SLANG_OVERRIDE;
+    virtual SLANG_NO_THROW void* SLANG_MCALL findSymbolAddressByName(char const* name) SLANG_OVERRIDE;
 
         /// Ctor.
     DefaultSharedLibrary(const SharedLibrary::Handle sharedLibraryHandle):
diff --git a/source/slang/slang.cpp b/source/slang/slang.cpp
index c78ca0a4d..889ac8203 100644
--- a/source/slang/slang.cpp
+++ b/source/slang/slang.cpp
@@ -3652,6 +3652,15 @@ SLANG_API SlangResult spCompileRequest_getModule(
     return SLANG_OK;
 }
 
+SLANG_API SlangResult spCompileRequest_getSession(
+    SlangCompileRequest* request,
+    slang::ISession** outSession)
+{
+    auto session = Slang::asInternal(request)->getLinkage();
+    *outSession = Slang::ComPtr<slang::ISession>(session).detach();
+    return SLANG_OK;
+}
+
 SLANG_API SlangResult spCompileRequest_getEntryPoint(
     SlangCompileRequest*    request,
     SlangInt                entryPointIndex,