Vulkan: Add support for semaphores

Former-commit-id: 429c5b61dd3a8c9666e2cf0d94f17d353e4e59f0

include/Nazara/Vulkan/VkSemaphore.hpp

@@ -0,0 +1,51 @@
+// Copyright (C) 2016 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Vulkan"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_VULKAN_VKSEMAPHORE_HPP
+#define NAZARA_VULKAN_VKSEMAPHORE_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Vulkan/Config.hpp>
+#include <Nazara/Vulkan/VkLoader.hpp>
+#include <vulkan/vulkan.h>
+
+namespace Nz 
+{
+	namespace Vk
+	{
+		class Device;
+
+		class NAZARA_VULKAN_API Semaphore
+		{
+			public:
+				inline Semaphore(Device& instance);
+				Semaphore(const Semaphore&) = delete;
+				Semaphore(Semaphore&&) = delete;
+				inline ~Semaphore();
+
+				inline bool Create(const VkSemaphoreCreateInfo& createInfo, const VkAllocationCallbacks* allocator = nullptr);
+				inline bool Create(VkSemaphoreCreateFlags flags = 0, const VkAllocationCallbacks* allocator = nullptr);
+				inline void Destroy();
+
+				inline VkResult GetLastErrorCode() const;
+
+				Semaphore& operator=(const Semaphore&) = delete;
+				Semaphore& operator=(Semaphore&&) = delete;
+
+				inline operator VkSemaphore();
+
+			private:
+				Device& m_device;
+				VkAllocationCallbacks m_allocator;
+				VkSemaphore m_semaphore;
+				VkResult m_lastErrorCode;
+		};
+	}
+}
+
+#include <Nazara/Vulkan/VkSemaphore.inl>
+
+#endif // NAZARA_VULKAN_VKSEMAPHORE_HPP

include/Nazara/Vulkan/VkSemaphore.inl

@@ -0,0 +1,73 @@
+// Copyright (C) 2016 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Vulkan"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Vulkan/VkSemaphore.hpp>
+#include <Nazara/Core/Error.hpp>
+#include <Nazara/Vulkan/VkDevice.hpp>
+#include <Nazara/Vulkan/Debug.hpp>
+
+namespace Nz
+{
+	namespace Vk
+	{
+		inline Semaphore::Semaphore(Device& device) :
+		m_device(device),
+		m_semaphore(VK_NULL_HANDLE)
+		{
+		}
+
+		inline Semaphore::~Semaphore()
+		{
+			Destroy();
+		}
+
+		inline bool Semaphore::Create(const VkSemaphoreCreateInfo& createInfo, const VkAllocationCallbacks* allocator)
+		{
+			m_lastErrorCode = m_device.vkCreateSemaphore(m_device, &createInfo, allocator, &m_semaphore);
+			if (m_lastErrorCode != VkResult::VK_SUCCESS)
+			{
+				NazaraError("Failed to create Vulkan semaphore");
+				return false;
+			}
+
+			// Store the allocator to access them when needed
+			if (allocator)
+				m_allocator = *allocator;
+			else
+				m_allocator.pfnAllocation = nullptr;
+
+			return true;
+		}
+
+		inline bool Semaphore::Create(VkSemaphoreCreateFlags flags, const VkAllocationCallbacks* allocator)
+		{
+			VkSemaphoreCreateInfo createInfo =
+			{
+				VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO,
+				nullptr,
+				flags
+			};
+
+			return Create(createInfo, allocator);
+		}
+
+		inline void Semaphore::Destroy()
+		{
+			if (m_semaphore != VK_NULL_HANDLE)
+				m_device.vkDestroySemaphore(m_device, m_semaphore, (m_allocator.pfnAllocation) ? &m_allocator : nullptr);
+		}
+
+		inline VkResult Semaphore::GetLastErrorCode() const
+		{
+			return m_lastErrorCode;
+		}
+
+		inline Semaphore::operator VkSemaphore()
+		{
+			return m_semaphore;
+		}
+	}
+}
+
+#include <Nazara/Vulkan/DebugOff.hpp>