118 lines
3.7 KiB
C++
118 lines
3.7 KiB
C++
// Copyright (C) 2016 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Vulkan"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Vulkan/VkLoader.hpp>
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#include <Nazara/Vulkan/Debug.hpp>
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namespace Nz
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{
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namespace Vk
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{
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bool Loader::EnumerateInstanceExtensionProperties(std::vector<VkExtensionProperties>* properties, const char* layerName)
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{
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NazaraAssert(properties, "Invalid device vector");
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// First, query physical device count
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UInt32 propertyCount = 0; // Remember, Nz::UInt32 is a typedef on uint32_t
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s_lastErrorCode = vkEnumerateInstanceExtensionProperties(layerName, &propertyCount, properties->data());
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if (s_lastErrorCode != VkResult::VK_SUCCESS)
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{
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NazaraError("Failed to get instance extension properties count");
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return false;
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}
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// Now we can get the list of the available physical device
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properties->resize(propertyCount);
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s_lastErrorCode = vkEnumerateInstanceExtensionProperties(layerName, &propertyCount, properties->data());
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if (s_lastErrorCode != VkResult::VK_SUCCESS)
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{
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NazaraError("Failed to enumerate instance extension properties");
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return false;
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}
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return true;
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}
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bool Loader::EnumerateInstanceLayerProperties(std::vector<VkLayerProperties>* properties)
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{
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NazaraAssert(properties, "Invalid device vector");
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// First, query physical device count
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UInt32 propertyCount = 0; // Remember, Nz::UInt32 is a typedef on uint32_t
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s_lastErrorCode = vkEnumerateInstanceLayerProperties(&propertyCount, properties->data());
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if (s_lastErrorCode != VkResult::VK_SUCCESS)
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{
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NazaraError("Failed to get instance layer properties count");
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return false;
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}
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// Now we can get the list of the available physical device
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properties->resize(propertyCount);
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s_lastErrorCode = vkEnumerateInstanceLayerProperties(&propertyCount, properties->data());
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if (s_lastErrorCode != VkResult::VK_SUCCESS)
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{
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NazaraError("Failed to enumerate instance layer properties");
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return false;
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}
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return true;
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}
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bool Loader::Initialize()
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{
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#ifdef NAZARA_PLATFORM_WINDOWS
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s_vulkanLib.Load("vulkan-1.dll");
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#elif defined(NAZARA_PLATFORM_LINUX)
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s_vulkanLib.Load("libvulkan.so");
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#else
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#error Unhandled platform
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#endif
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if (!s_vulkanLib.IsLoaded())
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{
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NazaraError("Failed to open vulkan library: " + s_vulkanLib.GetLastError());
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return false;
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}
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// vkGetInstanceProcAddr is the only function that's garantee to be exported
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vkGetInstanceProcAddr = reinterpret_cast<PFN_vkGetInstanceProcAddr>(s_vulkanLib.GetSymbol("vkGetInstanceProcAddr"));
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if (!vkGetInstanceProcAddr)
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{
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NazaraError("Failed to get symbol \"vkGetInstanceProcAddr\": " + s_vulkanLib.GetLastError());
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return false;
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}
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// all other functions should be loaded using vkGetInstanceProcAddr
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#define NAZARA_VULKAN_LOAD_GLOBAL(func) func = reinterpret_cast<PFN_##func>(vkGetInstanceProcAddr(nullptr, #func))
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NAZARA_VULKAN_LOAD_GLOBAL(vkCreateInstance);
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NAZARA_VULKAN_LOAD_GLOBAL(vkEnumerateInstanceExtensionProperties);
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NAZARA_VULKAN_LOAD_GLOBAL(vkEnumerateInstanceLayerProperties);
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#undef NAZARA_VULKAN_LOAD_GLOBAL
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s_lastErrorCode = VkResult::VK_SUCCESS;
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return true;
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}
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#define NAZARA_VULKAN_GLOBAL_FUNCTION_IMPL(func) PFN_##func Loader::func = nullptr
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NAZARA_VULKAN_GLOBAL_FUNCTION_IMPL(vkCreateInstance);
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NAZARA_VULKAN_GLOBAL_FUNCTION_IMPL(vkEnumerateInstanceExtensionProperties);
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NAZARA_VULKAN_GLOBAL_FUNCTION_IMPL(vkEnumerateInstanceLayerProperties);
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NAZARA_VULKAN_GLOBAL_FUNCTION_IMPL(vkGetInstanceProcAddr);
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#undef NAZARA_VULKAN_GLOBAL_FUNCTION_IMPL
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DynLib Loader::s_vulkanLib;
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VkResult Loader::s_lastErrorCode;
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void Loader::Uninitialize()
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{
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s_vulkanLib.Unload();
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}
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}
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}
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