Add JS bindings and test.

Author: kwokcb

javascript/MaterialXTest/browser/shaderGenerator.spec.js

@@ -51,6 +51,8 @@ describe('Generate Shaders', function ()
             generators.push(mx.WgslShaderGenerator.create());
         if (typeof mx.MdlShaderGenerator != 'undefined')
             generators.push(mx.MdlShaderGenerator.create());
+        if (typeof mx.SlangShaderGenerator != 'undefined')
+            generators.push(mx.SlangShaderGenerator.create());
 
         const elem = mx.findRenderableElement(doc);
         for (let gen of generators)

source/JsMaterialX/CMakeLists.txt

@@ -8,6 +8,7 @@ set(GENMSL ${CMAKE_CURRENT_SOURCE_DIR}/JsMaterialXGenMsl/)
 set(GENVK ${CMAKE_CURRENT_SOURCE_DIR}/JsMaterialXGenVk/)
 set(GENMDL ${CMAKE_CURRENT_SOURCE_DIR}/JsMaterialXGenMdl/)
 set(GENWGSL ${CMAKE_CURRENT_SOURCE_DIR}/JsMaterialXGenWgsl/)
+set(GENSLANG ${CMAKE_CURRENT_SOURCE_DIR}/JsMaterialXGenSlang/)
 
 set(SOURCE_FOLDER ${PROJECT_SOURCE_DIR}/source)
 
@@ -50,6 +51,7 @@ set(GENMSL_DEPS ${GENMSL}JsMslShaderGenerator.cpp)
 set(GENVK_DEPS ${GENVK}JsVkShaderGenerator.cpp)
 set(GENWGSL_DEPS ${GENWGSL}JsWgslShaderGenerator.cpp)
 set(GENMDL_DEPS ${GENMDL}JsMdlShaderGenerator.cpp)
+set(GENSLANG_DEPS ${GENSLANG}JsSlangShaderGenerator.cpp)
 
 # Linker flags
 set(JS_LINK_FLAGS_CORE "")
@@ -114,6 +116,10 @@ if (MATERIALX_BUILD_GEN_MSL)
     message("JS: Building JsMaterialXGenShader with MSL support")
     target_sources(JsMaterialXGenShader PRIVATE ${GENMSL_DEPS})
 endif()
+if (MATERIALX_BUILD_GEN_SLANG)
+    message("JS: Building JsMaterialXGenShader with Slang support")
+    target_sources(JsMaterialXGenShader PRIVATE ${GENSLANG_DEPS})
+endif()
 
 set_target_properties(JsMaterialXCore
     PROPERTIES
@@ -152,7 +158,10 @@ if (MATERIALX_BUILD_GEN_MDL)
 endif()
 if (MATERIALX_BUILD_GEN_MSL)
     target_link_libraries(JsMaterialXGenShader PUBLIC MaterialXGenMsl)
-endif()    
+endif()
+if (MATERIALX_BUILD_GEN_SLANG)
+    target_link_libraries(JsMaterialXGenShader PUBLIC MaterialXGenSlang)
+endif()
 
 # Install the JavaScript output
 install(TARGETS JsMaterialXCore DESTINATION "JavaScript/MaterialX")

source/JsMaterialX/JsMaterialXGenSlang/JsSlangShaderGenerator.cpp

@@ -0,0 +1,27 @@
+//
+// Copyright Contributors to the MaterialX Project
+// SPDX-License-Identifier: Apache-2.0
+//
+
+#include <MaterialXGenSlang/SlangShaderGenerator.h>
+#include <MaterialXGenShader/Util.h>
+
+#include <emscripten/bind.h>
+
+namespace ems = emscripten;
+namespace mx = MaterialX;
+
+namespace
+{
+    // Creator wrapper to avoid having to expose the TypeSystem class in JavaScript
+    mx::ShaderGeneratorPtr SlangShaderGenerator_create()
+    {
+        return mx::SlangShaderGenerator::create();
+    }
+}
+
+EMSCRIPTEN_BINDINGS(SlangShaderGenerator)
+{
+    ems::class_<mx::SlangShaderGenerator, ems::base<mx::HwShaderGenerator>>("SlangShaderGenerator")
+        .class_function("create", &SlangShaderGenerator_create);
+}