Cleanup on Samples (#295)

- introduced samples/utils functions in namespace vk::su (vulkan sample utils)
- introduced usage of debugReportCallback

samples/utils/utils.hpp

@@ -0,0 +1,59 @@
+// 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 "vulkan/vulkan.hpp"
+#include <iostream>
+
+namespace vk
+{
+  namespace su
+  {
+    const uint64_t FenceTimeout = 100000000;
+
+    template <typename TargetType, typename SourceType>
+    VULKAN_HPP_INLINE TargetType checked_cast(SourceType value)
+    {
+      static_assert(sizeof(TargetType) <= sizeof(SourceType), "No need to cast from smaller to larger type!");
+      static_assert(!std::numeric_limits<TargetType>::is_signed, "Only unsigned types supported!");
+      static_assert(!std::numeric_limits<SourceType>::is_signed, "Only unsigned types supported!");
+      assert(value <= std::numeric_limits<TargetType>::max());
+      return static_cast<TargetType>(value);
+    }
+
+    template<class T>
+    VULKAN_HPP_INLINE constexpr const T& clamp(const T& v, const T& lo, const T& hi)
+    {
+      return v < lo ? lo : hi < v ? hi : v;
+    }
+
+    vk::UniqueDeviceMemory allocateMemory(vk::UniqueDevice &device, vk::PhysicalDeviceMemoryProperties const& memoryProperties, vk::MemoryRequirements const& memoryRequirements, vk::MemoryPropertyFlags memoryPropertyFlags);
+    vk::UniqueDebugReportCallbackEXT createDebugReportCallback(vk::UniqueInstance &instance);
+    vk::UniqueDescriptorSetLayout createDescriptorSetLayout(vk::UniqueDevice &device);
+    vk::UniqueDevice createDevice(vk::PhysicalDevice physicalDevice, uint32_t queueFamilyIndex, std::vector<std::string> const& extensions = {});
+    vk::UniqueInstance createInstance(std::string const& appName, std::string const& engineName, std::vector<std::string> const& extensions = {});
+    VkBool32 debugReportCallback(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT objectType, uint64_t object, size_t location, int32_t messageCode, const char* pLayerPrefix, const char* pMessage, void* pUserData);
+    uint32_t findGraphicsQueueFamilyIndex(std::vector<vk::QueueFamilyProperties> const& queueFamilyProperties);
+    std::pair<uint32_t, uint32_t> findGraphicsAndPresentQueueFamilyIndex(vk::PhysicalDevice physicalDevice, vk::UniqueSurfaceKHR & surface);
+    std::vector<std::string> getDeviceExtensions();
+    std::vector<std::string> getInstanceExtensions();
+    vk::Format pickColorFormat(std::vector<vk::SurfaceFormatKHR> const& formats);
+
+#if defined(VK_USE_PLATFORM_WIN32_KHR)
+    HWND initializeWindow(std::string const& className, std::string const& windowName, LONG width, LONG height);
+#else
+#pragma error "unhandled platform"
+#endif
+  }
+}