working mesh shader

VulkanBuffer.h

@@ -0,0 +1,46 @@
+/*
+* Vulkan buffer class
+*
+* Encapsulates a Vulkan buffer
+*
+* Copyright (C) 2016 by Sascha Willems - www.saschawillems.de
+*
+* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
+*/
+
+#pragma once
+
+#include <vector>
+
+#include "vulkan/vulkan.h"
+#include "VulkanTools.h"
+
+namespace vks
+{	
+	/**
+	* @brief Encapsulates access to a Vulkan buffer backed up by device memory
+	* @note To be filled by an external source like the VulkanDevice
+	*/
+	struct Buffer
+	{
+		VkDevice device;
+		VkBuffer buffer = VK_NULL_HANDLE;
+		VkDeviceMemory memory = VK_NULL_HANDLE;
+		VkDescriptorBufferInfo descriptor;
+		VkDeviceSize size = 0;
+		VkDeviceSize alignment = 0;
+		void* mapped = nullptr;
+		/** @brief Usage flags to be filled by external source at buffer creation (to query at some later point) */
+		VkBufferUsageFlags usageFlags;
+		/** @brief Memory property flags to be filled by external source at buffer creation (to query at some later point) */
+		VkMemoryPropertyFlags memoryPropertyFlags;
+		VkResult map(VkDeviceSize size = VK_WHOLE_SIZE, VkDeviceSize offset = 0);
+		void unmap();
+		VkResult bind(VkDeviceSize offset = 0);
+		void setupDescriptor(VkDeviceSize size = VK_WHOLE_SIZE, VkDeviceSize offset = 0);
+		void copyTo(void* data, VkDeviceSize size);
+		VkResult flush(VkDeviceSize size = VK_WHOLE_SIZE, VkDeviceSize offset = 0);
+		VkResult invalidate(VkDeviceSize size = VK_WHOLE_SIZE, VkDeviceSize offset = 0);
+		void destroy();
+	};
+}