From d87b0587d7aadbdf1e2053571eab64820ca2763c Mon Sep 17 00:00:00 2001
From: Lynix <lynix680@gmail.com>
Date: Sat, 30 Apr 2016 11:43:48 +0200
Subject: [PATCH] Vulkan: Add support for Swapchains

Former-commit-id: 7eafa8f4d38fb3202c63bc42d5d5bb4febfd459a
---
 include/Nazara/Vulkan/VkSwapchain.hpp | 52 +++++++++++++++++++++
 include/Nazara/Vulkan/VkSwapchain.inl | 67 +++++++++++++++++++++++++++
 2 files changed, 119 insertions(+)
 create mode 100644 include/Nazara/Vulkan/VkSwapchain.hpp
 create mode 100644 include/Nazara/Vulkan/VkSwapchain.inl

diff --git a/include/Nazara/Vulkan/VkSwapchain.hpp b/include/Nazara/Vulkan/VkSwapchain.hpp
new file mode 100644
index 000000000..a0f23f8ac
--- /dev/null
+++ b/include/Nazara/Vulkan/VkSwapchain.hpp
@@ -0,0 +1,52 @@
+// 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_VKSWAPCHAIN_HPP
+#define NAZARA_VULKAN_VKSWAPCHAIN_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 Swapchain
+		{
+			public:
+				inline Swapchain(Device& instance);
+				Swapchain(const Swapchain&) = delete;
+				Swapchain(Swapchain&&) = delete;
+				inline ~Swapchain();
+
+				bool Create(const VkSwapchainCreateInfoKHR& createInfo, const VkAllocationCallbacks* allocator = nullptr);
+				inline void Destroy();
+
+				inline bool IsSupported() const;
+
+				inline VkResult GetLastErrorCode() const;
+
+				Swapchain& operator=(const Swapchain&) = delete;
+				Swapchain& operator=(Swapchain&&) = delete;
+
+				inline operator VkSwapchainKHR();
+
+			private:
+				Device& m_device;
+				VkAllocationCallbacks m_allocator;
+				VkSwapchainKHR m_swapchain;
+				VkResult m_lastErrorCode;
+		};
+	}
+}
+
+#include <Nazara/Vulkan/VkSwapchain.inl>
+
+#endif // NAZARA_VULKAN_VKSWAPCHAIN_HPP
diff --git a/include/Nazara/Vulkan/VkSwapchain.inl b/include/Nazara/Vulkan/VkSwapchain.inl
new file mode 100644
index 000000000..7ed08b902
--- /dev/null
+++ b/include/Nazara/Vulkan/VkSwapchain.inl
@@ -0,0 +1,67 @@
+// 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/VkSwapchain.hpp>
+#include <Nazara/Core/Error.hpp>
+#include <Nazara/Vulkan/VkDevice.hpp>
+#include <Nazara/Vulkan/Debug.hpp>
+
+namespace Nz
+{
+	namespace Vk
+	{
+		inline Swapchain::Swapchain(Device& device) :
+		m_device(device),
+		m_swapchain(VK_NULL_HANDLE)
+		{
+		}
+
+		inline Swapchain::~Swapchain()
+		{
+			Destroy();
+		}
+
+		inline bool Swapchain::Create(const VkSwapchainCreateInfoKHR& createInfo, const VkAllocationCallbacks* allocator)
+		{
+			m_lastErrorCode = m_device.vkCreateSwapchainKHR(m_device, &createInfo, allocator, &m_swapchain);
+			if (m_lastErrorCode != VkResult::VK_SUCCESS)
+			{
+				NazaraError("Failed to create Vulkan swapchain");
+				return false;
+			}
+
+			// Store the allocator to access them when needed
+			if (allocator)
+				m_allocator = *allocator;
+			else
+				m_allocator.pfnAllocation = nullptr;
+
+			return true;
+		}
+
+		inline void Swapchain::Destroy()
+		{
+			if (m_swapchain != VK_NULL_HANDLE)
+				m_device.vkDestroySwapchainKHR(m_device, m_swapchain, (m_allocator.pfnAllocation) ? &m_allocator : nullptr);
+		}
+
+		inline VkResult Swapchain::GetLastErrorCode() const
+		{
+			return m_lastErrorCode;
+		}
+
+		inline bool Swapchain::IsSupported() const
+		{
+			if (!m_device.IsExtensionLoaded("VK_KHR_swapchain"))
+				return false;
+		}
+
+		inline Swapchain::operator VkSwapchainKHR()
+		{
+			return m_swapchain;
+		}
+	}
+}
+
+#include <Nazara/Vulkan/DebugOff.hpp>