Introduce raii-compliant handle wrapper classes.

RAII_Samples/utils/shaders.hpp

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+// Copyright(c) 2019, NVIDIA CORPORATION. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+#include "utils.hpp"
+#include "../../samples/utils/shaders.hpp"
+
+namespace vk
+{
+  namespace raii
+  {
+    namespace su
+    {
+      template <typename Dispatcher = VULKAN_HPP_DEFAULT_DISPATCHER_TYPE>
+      std::unique_ptr<vk::raii::ShaderModule> makeUniqueShaderModule( vk::raii::Device const & device,
+                                                                      vk::ShaderStageFlagBits  shaderStage,
+                                                                      std::string const &      shaderText )
+      {
+        std::vector<unsigned int> shaderSPV;
+        if ( !vk::su::GLSLtoSPV( shaderStage, shaderText, shaderSPV ) )
+        {
+          throw std::runtime_error( "Could not convert glsl shader to spir-v -> terminating" );
+        }
+
+        return vk::raii::su::make_unique<vk::raii::ShaderModule>(
+          device, vk::ShaderModuleCreateInfo( vk::ShaderModuleCreateFlags(), shaderSPV ) );
+      }
+    }  // namespace su
+  }    // namespace raii
+}  // namespace vk