More wasm binding for playground. (shader-slang#5420)

source/slang-wasm/slang-wasm-bindings.cpp

@@ -47,8 +47,14 @@ EMSCRIPTEN_BINDINGS(slang)
             "getEntryPointCode",
             &slang::wgsl::ComponentType::getEntryPointCode)
         .function(
-            "getEntryPointCodeSpirv",
-            &slang::wgsl::ComponentType::getEntryPointCodeSpirv);
+            "getEntryPointCodeBlob",
+            &slang::wgsl::ComponentType::getEntryPointCodeBlob)
+        .function(
+            "getTargetCodeBlob",
+            &slang::wgsl::ComponentType::getTargetCodeBlob)
+        .function(
+            "getTargetCode",
+            &slang::wgsl::ComponentType::getTargetCode);
 
     class_<slang::wgsl::Module, base<slang::wgsl::ComponentType>>("Module")
         .function(
@@ -58,14 +64,25 @@ EMSCRIPTEN_BINDINGS(slang)
         .function(
             "findAndCheckEntryPoint",
             &slang::wgsl::Module::findAndCheckEntryPoint,
-            return_value_policy::take_ownership());
+            return_value_policy::take_ownership())
+        .function(
+            "getDefinedEntryPoint",
+            &slang::wgsl::Module::getDefinedEntryPoint,
+            return_value_policy::take_ownership())
+        .function(
+            "getDefinedEntryPointCount",
+            &slang::wgsl::Module::getDefinedEntryPointCount);
 
     value_object<slang::wgsl::Error>("Error")
         .field("type", &slang::wgsl::Error::type)
         .field("result", &slang::wgsl::Error::result)
         .field("message", &slang::wgsl::Error::message);
 
-    class_<slang::wgsl::EntryPoint, base<slang::wgsl::ComponentType>>("EntryPoint");
+    class_<slang::wgsl::EntryPoint, base<slang::wgsl::ComponentType>>("EntryPoint")
+        .function(
+            "getName",
+            &slang::wgsl::EntryPoint::getName,
+            allow_raw_pointers());
 
     class_<slang::wgsl::CompileTargets>("CompileTargets")
         .function(

source/slang-wasm/slang-wasm.cpp

@@ -94,17 +94,15 @@ Session* GlobalSession::createSession(int compileTarget)
     return new Session(session);
 }
 
-Module* Session::loadModuleFromSource(const std::string& slangCode)
+Module* Session::loadModuleFromSource(const std::string& slangCode, const std::string& name, const std::string& path)
 {
     Slang::ComPtr<IModule> module;
     {
-        const char * name = "";
-        const char * path = "";
         Slang::ComPtr<slang::IBlob> diagnosticsBlob;
         Slang::ComPtr<ISlangBlob> slangCodeBlob = Slang::RawBlob::create(
             slangCode.c_str(), slangCode.size());
         module = m_interface->loadModuleFromSource(
-            name, path, slangCodeBlob, diagnosticsBlob.writeRef());
+            name.c_str(), path.c_str(), slangCodeBlob, diagnosticsBlob.writeRef());
         if (!module)
         {
             g_error.type = std::string("USER");
@@ -161,6 +159,38 @@ EntryPoint* Module::findAndCheckEntryPoint(const std::string& name, int stage)
     return new EntryPoint(entryPoint);
 }
 
+int Module::getDefinedEntryPointCount()
+{
+    return moduleInterface()->getDefinedEntryPointCount();
+}
+
+EntryPoint* Module::getDefinedEntryPoint(int index)
+{
+    if (moduleInterface()->getDefinedEntryPointCount() <= index)
+        return nullptr;
+
+    Slang::ComPtr<IEntryPoint> entryPoint;
+    {
+        Slang::ComPtr<slang::IBlob> diagnosticsBlob;
+        SlangResult result = moduleInterface()->getDefinedEntryPoint(index, entryPoint.writeRef());
+        if (!SLANG_SUCCEEDED(result))
+        {
+            g_error.type = std::string("USER");
+            g_error.result = result;
+
+            if (diagnosticsBlob->getBufferSize())
+            {
+                char* diagnostics = (char*)diagnosticsBlob->getBufferPointer();
+                g_error.message = std::string(diagnostics);
+            }
+            return nullptr;
+        }
+    }
+
+    return new EntryPoint(entryPoint);
+}
+
+
 ComponentType* Session::createCompositeComponentType(
     const std::vector<ComponentType*>& components)
 {
@@ -235,9 +265,9 @@ std::string ComponentType::getEntryPointCode(int entryPointIndex, int targetInde
     return {};
 }
 
-// Since spirv code is binary, we can't return it as a string, we will need to use emscripten::val
+// Since result code is binary, we can't return it as a string, we will need to use emscripten::val
 // to wrap it and return it to the javascript side.
-emscripten::val ComponentType::getEntryPointCodeSpirv(int entryPointIndex, int targetIndex)
+emscripten::val ComponentType::getEntryPointCodeBlob(int entryPointIndex, int targetIndex)
 {
     Slang::ComPtr<IBlob> kernelBlob;
     Slang::ComPtr<ISlangBlob> diagnosticBlob;
@@ -262,6 +292,60 @@ emscripten::val ComponentType::getEntryPointCodeSpirv(int entryPointIndex, int t
             ptr));
 }
 
+std::string ComponentType::getTargetCode(int targetIndex)
+{
+    {
+        Slang::ComPtr<IBlob> kernelBlob;
+        Slang::ComPtr<ISlangBlob> diagnosticBlob;
+        SlangResult result = interface()->getTargetCode(
+            targetIndex,
+            kernelBlob.writeRef(),
+            diagnosticBlob.writeRef());
+        if (result != SLANG_OK)
+        {
+            g_error.type = std::string("USER");
+            g_error.result = result;
+            g_error.message = std::string(
+                (char*)diagnosticBlob->getBufferPointer(),
+                (char*)diagnosticBlob->getBufferPointer() +
+                diagnosticBlob->getBufferSize());
+            return "";
+        }
+        std::string targetCode = std::string(
+            (char*)kernelBlob->getBufferPointer(),
+            (char*)kernelBlob->getBufferPointer() + kernelBlob->getBufferSize());
+        return targetCode;
+    }
+
+    return {};
+}
+
+// Since result code is binary, we can't return it as a string, we will need to use emscripten::val
+// to wrap it and return it to the javascript side.
+emscripten::val ComponentType::getTargetCodeBlob(int targetIndex)
+{
+    Slang::ComPtr<IBlob> kernelBlob;
+    Slang::ComPtr<ISlangBlob> diagnosticBlob;
+    SlangResult result = interface()->getTargetCode(
+        targetIndex,
+        kernelBlob.writeRef(),
+        diagnosticBlob.writeRef());
+    if (result != SLANG_OK)
+    {
+        g_error.type = std::string("USER");
+        g_error.result = result;
+        g_error.message = std::string(
+            (char*)diagnosticBlob->getBufferPointer(),
+            (char*)diagnosticBlob->getBufferPointer() +
+            diagnosticBlob->getBufferSize());
+        return {};
+    }
+
+    const uint8_t* ptr = (uint8_t*)kernelBlob->getBufferPointer();
+    return emscripten::val(emscripten::typed_memory_view(kernelBlob->getBufferSize(),
+            ptr));
+}
+
 namespace lsp
 {
     Position translate(Slang::LanguageServerProtocol::Position p)

source/slang-wasm/slang-wasm.h

@@ -48,7 +48,9 @@ class ComponentType
     ComponentType* link();
 
     std::string getEntryPointCode(int entryPointIndex, int targetIndex);
-    emscripten::val getEntryPointCodeSpirv(int entryPointIndex, int targetIndex);
+    emscripten::val getEntryPointCodeBlob(int entryPointIndex, int targetIndex);
+    std::string getTargetCode(int targetIndex);
+    emscripten::val getTargetCodeBlob(int targetIndex);
 
     slang::IComponentType* interface() const {return m_interface;}
 
@@ -62,9 +64,11 @@ class ComponentType
 class EntryPoint : public ComponentType
 {
 public:
-
     EntryPoint(slang::IEntryPoint* interface) : ComponentType(interface) {}
-
+    std::string getName() const
+    {
+        return entryPointInterface()->getFunctionReflection()->getName();
+    }
 private:
 
     slang::IEntryPoint* entryPointInterface() const {
@@ -80,6 +84,8 @@ class Module : public ComponentType
 
     EntryPoint* findEntryPointByName(const std::string& name);
     EntryPoint* findAndCheckEntryPoint(const std::string& name, int stage);
+    EntryPoint* getDefinedEntryPoint(int index);
+    int getDefinedEntryPointCount();
 
     slang::IModule* moduleInterface() const {
         return static_cast<slang::IModule*>(interface());
@@ -93,7 +99,8 @@ class Session
     Session(slang::ISession* interface)
         : m_interface(interface) {}
 
-    Module* loadModuleFromSource(const std::string& slangCode);
+    Module* loadModuleFromSource(
+        const std::string& slangCode, const std::string& name, const std::string& path);
 
     ComponentType* createCompositeComponentType(
         const std::vector<ComponentType*>& components);

source/slang/slang.cpp

@@ -5040,13 +5040,21 @@ IArtifact* ComponentType::getTargetArtifact(Int targetIndex, slang::IBlob** outD
             });
         List<RefPtr<ComponentType>> components;
         components.add(this);
+        bool entryPointsDiscovered = false;
         for (auto module : modules)
         {
             for (auto entryPoint : module->getEntryPoints())
             {
                 components.add(entryPoint);
+                entryPointsDiscovered = true;
             }
         }
+        // If no entry points were discovered, then we should return nullptr.
+        if (!entryPointsDiscovered)
+        {
+            return nullptr;
+        }
+
         RefPtr<CompositeComponentType> composite = new CompositeComponentType(linkage, components);
         ComPtr<IComponentType> linkedComponentType;
         SLANG_RETURN_NULL_ON_FAIL(composite->link(linkedComponentType.writeRef(), outDiagnostics));