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| 1 | +export module Device; |
| 2 | + |
| 3 | +import std; |
| 4 | +import vulkan_hpp; |
| 5 | + |
| 6 | +import Context; |
| 7 | +import Window; |
| 8 | + |
| 9 | +constexpr std::array<const char*, 1> DEVICE_EXTENSIONS { vk::KHRSwapchainExtensionName }; |
| 10 | + |
| 11 | +export namespace vht { |
| 12 | + /** |
| 13 | + * @brief 队列族索引 |
| 14 | + * @details |
| 15 | + * - graphics_family: 图形队列族索引 |
| 16 | + * - present_family: 呈现队列族索引 |
| 17 | + * - is_complete(): 检查是否已找到所需的队列族索引 |
| 18 | + */ |
| 19 | + struct QueueFamilyIndices { |
| 20 | + std::optional<std::uint32_t> graphics_family; |
| 21 | + std::optional<std::uint32_t> present_family; |
| 22 | + [[nodiscard]] |
| 23 | + bool is_complete() const { |
| 24 | + return graphics_family.has_value() && present_family.has_value(); |
| 25 | + } |
| 26 | + }; |
| 27 | + |
| 28 | + /** |
| 29 | + * @brief 交换链支持的详细信息 |
| 30 | + * @details |
| 31 | + * - capabilities: 交换链的能力 |
| 32 | + * - formats: 支持的表面格式 |
| 33 | + * - present_modes: 支持的呈现模式 |
| 34 | + */ |
| 35 | + struct SwapchainSupportDetails { |
| 36 | + vk::SurfaceCapabilitiesKHR capabilities; |
| 37 | + std::vector<vk::SurfaceFormatKHR> formats; |
| 38 | + std::vector<vk::PresentModeKHR> present_modes; |
| 39 | + }; |
| 40 | + /** |
| 41 | + * @brief 设备相关 |
| 42 | + * @details |
| 43 | + * - 依赖： |
| 44 | + * - m_context: Vulkan上下文 |
| 45 | + * - m_window: 窗口相关 |
| 46 | + * - 工作： |
| 47 | + * - 选择合适的物理设备 |
| 48 | + * - 创建逻辑设备和队列 |
| 49 | + * - 可访问成员： |
| 50 | + * - physical_device(): 获取物理设备 |
| 51 | + * - device(): 获取逻辑设备 |
| 52 | + * - graphics_queue(): 获取图形队列 |
| 53 | + * - present_queue(): 获取呈现队列 |
| 54 | + * - swapchain_support(): 获取交换链支持的详细信息 |
| 55 | + * - queue_family_indices(): 获取队列族索引 |
| 56 | + */ |
| 57 | + class Device { |
| 58 | + std::shared_ptr<vht::Context> m_context{ nullptr }; |
| 59 | + std::shared_ptr<vht::Window> m_window{ nullptr }; |
| 60 | + vk::raii::PhysicalDevice m_physical_device{ nullptr }; |
| 61 | + vk::raii::Device m_device{ nullptr }; |
| 62 | + QueueFamilyIndices m_queue_family_indices{}; |
| 63 | + vk::raii::Queue m_graphics_queue{ nullptr }; |
| 64 | + vk::raii::Queue m_present_queue{ nullptr }; |
| 65 | + public: |
| 66 | + explicit Device(std::shared_ptr<vht::Context> context, std::shared_ptr<vht::Window> window) |
| 67 | + : m_context(std::move(context)), |
| 68 | + m_window(std::move(window)) { |
| 69 | + pick_physical_device(); |
| 70 | + create_device(); |
| 71 | + } |
| 72 | + |
| 73 | + [[nodiscard]] |
| 74 | + const vk::raii::PhysicalDevice& physical_device() const { return m_physical_device; } |
| 75 | + [[nodiscard]] |
| 76 | + const vk::raii::Device& device() const { return m_device; } |
| 77 | + [[nodiscard]] |
| 78 | + const vk::raii::Queue& graphics_queue() const { return m_graphics_queue; } |
| 79 | + [[nodiscard]] |
| 80 | + const vk::raii::Queue& present_queue() const { return m_present_queue; } |
| 81 | + [[nodiscard]] |
| 82 | + SwapchainSupportDetails swapchain_support() const { return query_swapchain_support(m_physical_device); } |
| 83 | + [[nodiscard]] |
| 84 | + QueueFamilyIndices queue_family_indices() const { return m_queue_family_indices; } |
| 85 | + private: |
| 86 | + /** |
| 87 | + * @brief 挑选物理设备 |
| 88 | + */ |
| 89 | + void pick_physical_device() { |
| 90 | + const auto physical_devices = m_context->instance().enumeratePhysicalDevices(); |
| 91 | + if (physical_devices.empty()) throw std::runtime_error("failed to enumerate physical devices"); |
| 92 | + for (const auto& it : physical_devices) { |
| 93 | + if (is_device_suitable(it)) { |
| 94 | + m_physical_device = it; |
| 95 | + return; |
| 96 | + } |
| 97 | + } |
| 98 | + throw std::runtime_error("failed to get physical device"); |
| 99 | + } |
| 100 | + |
| 101 | + /** |
| 102 | + * @brief 判断物理设备是否可用 |
| 103 | + * @param physical_device 物理设备 |
| 104 | + * @return bool 是否适合使用 |
| 105 | + */ |
| 106 | + [[nodiscard]] |
| 107 | + bool is_device_suitable(const vk::raii::PhysicalDevice& physical_device) const { |
| 108 | + // 检查是否支持交换链扩展 |
| 109 | + std::set<std::string> extension_set( DEVICE_EXTENSIONS.begin(), DEVICE_EXTENSIONS.end() ); |
| 110 | + for (const auto& it : physical_device.enumerateDeviceExtensionProperties()) { |
| 111 | + extension_set.erase(it.extensionName); |
| 112 | + } |
| 113 | + if (!extension_set.empty()) return false; |
| 114 | + // 交换链格式支持 |
| 115 | + if (const auto supports = query_swapchain_support(physical_device); |
| 116 | + supports.formats.empty() || supports.present_modes.empty() |
| 117 | + ) return false; |
| 118 | + // 队列族支持 |
| 119 | + const auto indices = find_queue_families(physical_device); |
| 120 | + return indices.is_complete(); |
| 121 | + } |
| 122 | + |
| 123 | + /** |
| 124 | + * @brief 获取交换链支持的详细信息 |
| 125 | + * @param physical_device 物理设备 |
| 126 | + * @return 交换链支持的详细信息 |
| 127 | + */ |
| 128 | + [[nodiscard]] |
| 129 | + SwapchainSupportDetails query_swapchain_support(const vk::raii::PhysicalDevice& physical_device) const { |
| 130 | + return { |
| 131 | + physical_device.getSurfaceCapabilitiesKHR( m_window->surface() ), |
| 132 | + physical_device.getSurfaceFormatsKHR( m_window->surface() ), |
| 133 | + physical_device.getSurfacePresentModesKHR( m_window->surface() ) |
| 134 | + }; |
| 135 | + } |
| 136 | + |
| 137 | + /** |
| 138 | + * @brief 查询需要的队列族索引 |
| 139 | + * @param physical_device 物理设备 |
| 140 | + * @return QueueFamilyIndices 队列族索引 |
| 141 | + */ |
| 142 | + [[nodiscard]] |
| 143 | + QueueFamilyIndices find_queue_families(const vk::raii::PhysicalDevice& physical_device) const { |
| 144 | + QueueFamilyIndices indices{}; |
| 145 | + const auto queue_families = physical_device.getQueueFamilyProperties(); |
| 146 | + for (std::uint32_t i = 0; const auto& queue_family : queue_families) { |
| 147 | + if (queue_family.queueFlags & vk::QueueFlagBits::eGraphics) { |
| 148 | + indices.graphics_family = i; |
| 149 | + } |
| 150 | + if(physical_device.getSurfaceSupportKHR(i, m_window->surface())){ |
| 151 | + indices.present_family = i; |
| 152 | + } |
| 153 | + if (indices.is_complete()) break; |
| 154 | + ++i; |
| 155 | + } |
| 156 | + return indices; |
| 157 | + } |
| 158 | + |
| 159 | + /** |
| 160 | + * @brief 创建逻辑设备与队列 |
| 161 | + */ |
| 162 | + void create_device() { |
| 163 | + // 已在物理设备创建时保证内容不为空 |
| 164 | + m_queue_family_indices = find_queue_families(m_physical_device); |
| 165 | + const auto [graphics_family, present_family] = m_queue_family_indices; |
| 166 | + |
| 167 | + std::set<std::uint32_t> unique_queue_families { graphics_family.value(), present_family.value() }; |
| 168 | + |
| 169 | + std::vector<vk::DeviceQueueCreateInfo> queue_create_infos; |
| 170 | + queue_create_infos.reserve(unique_queue_families.size()); |
| 171 | + float queue_priority = 1.0f; |
| 172 | + for (const std::uint32_t queue_family : unique_queue_families) { |
| 173 | + vk::DeviceQueueCreateInfo queue_create_info; |
| 174 | + queue_create_info.queueFamilyIndex = queue_family; |
| 175 | + queue_create_info.setQueuePriorities( queue_priority ); |
| 176 | + queue_create_infos.emplace_back( queue_create_info ); |
| 177 | + } |
| 178 | + |
| 179 | + vk::StructureChain< |
| 180 | + vk::DeviceCreateInfo, |
| 181 | + vk::PhysicalDeviceFeatures2, |
| 182 | + vk::PhysicalDeviceVulkan11Features, |
| 183 | + vk::PhysicalDeviceVulkan12Features, |
| 184 | + vk::PhysicalDeviceVulkan13Features |
| 185 | + > device_create_info; |
| 186 | + |
| 187 | + device_create_info.get() |
| 188 | + .setQueueCreateInfos( queue_create_infos ) |
| 189 | + .setPEnabledExtensionNames( DEVICE_EXTENSIONS ); |
| 190 | + device_create_info.get<vk::PhysicalDeviceFeatures2>().features |
| 191 | + .setSamplerAnisotropy( true ); |
| 192 | + device_create_info.get<vk::PhysicalDeviceVulkan12Features>() |
| 193 | + .setTimelineSemaphore( true ) |
| 194 | + .setImagelessFramebuffer( true ); |
| 195 | + device_create_info.get<vk::PhysicalDeviceVulkan13Features>() |
| 196 | + .setSynchronization2( true ); |
| 197 | + |
| 198 | + m_device = m_physical_device.createDevice( device_create_info.get() ); |
| 199 | + m_graphics_queue = m_device.getQueue( graphics_family.value(), 0 ); |
| 200 | + m_present_queue = m_device.getQueue( present_family.value(), 0 ); |
| 201 | + } |
| 202 | + |
| 203 | + }; |
| 204 | +} |
| 205 | + |
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