From e536f1c9629eec4841e55390404f7dbec879b07d Mon Sep 17 00:00:00 2001
From: Lynix <lynix680@gmail.com>
Date: Wed, 18 May 2016 21:32:41 +0200
Subject: [PATCH] Vulkan/Surface: Add a few wrapper methods

Former-commit-id: 7c299cdd3964279dd6dafb25acc762d753c17ab0
---
 include/Nazara/Vulkan/VkSurface.hpp |  5 ++
 include/Nazara/Vulkan/VkSurface.inl | 73 +++++++++++++++++++++++++++++
 2 files changed, 78 insertions(+)

diff --git a/include/Nazara/Vulkan/VkSurface.hpp b/include/Nazara/Vulkan/VkSurface.hpp
index 7b7fbcdfd..03a57d2fe 100644
--- a/include/Nazara/Vulkan/VkSurface.hpp
+++ b/include/Nazara/Vulkan/VkSurface.hpp
@@ -64,6 +64,11 @@ namespace Nz
 
 				inline void Destroy();
 
+				bool GetCapabilities(VkPhysicalDevice physicalDevice, VkSurfaceCapabilitiesKHR* surfaceCapabilities);
+				bool GetFormats(VkPhysicalDevice physicalDevice, std::vector<VkSurfaceFormatKHR>* surfaceFormats);
+				bool GetPresentModes(VkPhysicalDevice physicalDevice, std::vector<VkPresentModeKHR>* presentModes);
+				bool GetSupportPresentation(VkPhysicalDevice physicalDevice, UInt32 queueFamilyIndex, bool* supported);
+
 				inline bool IsSupported() const;
 
 				inline VkResult GetLastErrorCode() const;
diff --git a/include/Nazara/Vulkan/VkSurface.inl b/include/Nazara/Vulkan/VkSurface.inl
index e7b0efe64..b6cb3a28f 100644
--- a/include/Nazara/Vulkan/VkSurface.inl
+++ b/include/Nazara/Vulkan/VkSurface.inl
@@ -173,6 +173,79 @@ namespace Nz
 			return m_lastErrorCode;
 		}
 
+		inline bool Surface::GetCapabilities(VkPhysicalDevice physicalDevice, VkSurfaceCapabilitiesKHR* surfaceCapabilities)
+		{
+			m_lastErrorCode = m_instance.vkGetPhysicalDeviceSurfaceCapabilitiesKHR(physicalDevice, m_surface, surfaceCapabilities);
+			if (m_lastErrorCode != VkResult::VK_SUCCESS)
+			{
+				NazaraError("Failed to query surface capabilities");
+				return false;
+			}
+
+			return true;
+		}
+
+		inline bool Surface::GetFormats(VkPhysicalDevice physicalDevice, std::vector<VkSurfaceFormatKHR>* surfaceFormats)
+		{
+			// First, query format count
+			UInt32 surfaceCount = 0; // Remember, Nz::UInt32 is a typedef on uint32_t
+			m_lastErrorCode = m_instance.vkGetPhysicalDeviceSurfaceFormatsKHR(physicalDevice, m_surface, &surfaceCount, nullptr);
+			if (m_lastErrorCode != VkResult::VK_SUCCESS || surfaceCount == 0)
+			{
+				NazaraError("Failed to query format count");
+				return false;
+			}
+
+			// Now we can get the list of the available physical device
+			surfaceFormats->resize(surfaceCount);
+			m_lastErrorCode = m_instance.vkGetPhysicalDeviceSurfaceFormatsKHR(physicalDevice, m_surface, &surfaceCount, surfaceFormats->data());
+			if (m_lastErrorCode != VkResult::VK_SUCCESS)
+			{
+				NazaraError("Failed to query formats");
+				return false;
+			}
+
+			return true;
+		}
+
+		inline bool Surface::GetPresentModes(VkPhysicalDevice physicalDevice, std::vector<VkPresentModeKHR>* presentModes)
+		{
+			// First, query present modes count
+			UInt32 presentModeCount = 0; // Remember, Nz::UInt32 is a typedef on uint32_t
+			m_lastErrorCode = m_instance.vkGetPhysicalDeviceSurfacePresentModesKHR(physicalDevice, m_surface, &presentModeCount, nullptr);
+			if (m_lastErrorCode != VkResult::VK_SUCCESS || presentModeCount == 0)
+			{
+				NazaraError("Failed to query present mode count");
+				return false;
+			}
+
+			// Now we can get the list of the available physical device
+			presentModes->resize(presentModeCount);
+			m_lastErrorCode = m_instance.vkGetPhysicalDeviceSurfacePresentModesKHR(physicalDevice, m_surface, &presentModeCount, presentModes->data());
+			if (m_lastErrorCode != VkResult::VK_SUCCESS)
+			{
+				NazaraError("Failed to query present modes");
+				return false;
+			}
+
+			return true;
+		}
+
+		inline bool Surface::GetSupportPresentation(VkPhysicalDevice physicalDevice, UInt32 queueFamilyIndex, bool* supported)
+		{
+			VkBool32 presentationSupported = VK_FALSE;
+			m_lastErrorCode = m_instance.vkGetPhysicalDeviceSurfaceSupportKHR(physicalDevice, queueFamilyIndex, m_surface, &presentationSupported);
+			if (m_lastErrorCode != VkResult::VK_SUCCESS)
+			{
+				NazaraError("Failed to query surface capabilities");
+				return false;
+			}
+
+			*supported = (presentationSupported == VK_TRUE);
+
+			return true;
+		}
+
 		inline bool Surface::IsSupported() const
 		{
 			if (!m_instance.IsExtensionLoaded("VK_KHR_surface"))