|
| 1 | +use anyhow::{Context, anyhow}; |
| 2 | +use ash::{ext, khr, vk}; |
| 3 | +use std::borrow::Cow; |
| 4 | +use std::ffi::{CStr, c_char}; |
| 5 | +use std::ops::Deref; |
| 6 | +use std::sync::Arc; |
| 7 | + |
| 8 | +/// Central struct containing the Vulkan instance and device, among others |
| 9 | +pub struct MyDevice { |
| 10 | + pub entry: ash::Entry, |
| 11 | + pub instance: ash::Instance, |
| 12 | + pub physical_device: vk::PhysicalDevice, |
| 13 | + pub device: ash::Device, |
| 14 | + pub main_queue_family: u32, |
| 15 | + pub main_queue: vk::Queue, |
| 16 | + pub debug_ext_instance: ext::debug_utils::Instance, |
| 17 | + pub debug_ext_device: ext::debug_utils::Device, |
| 18 | + pub surface_ext: khr::surface::Instance, |
| 19 | + pub swapchain_ext: khr::swapchain::Device, |
| 20 | + debug_callback: vk::DebugUtilsMessengerEXT, |
| 21 | +} |
| 22 | + |
| 23 | +impl Deref for MyDevice { |
| 24 | + type Target = ash::Device; |
| 25 | + |
| 26 | + fn deref(&self) -> &Self::Target { |
| 27 | + &self.device |
| 28 | + } |
| 29 | +} |
| 30 | + |
| 31 | +impl MyDevice { |
| 32 | + pub fn new(extension_names: &[*const c_char], debug_layer: bool) -> anyhow::Result<Arc<Self>> { |
| 33 | + unsafe { |
| 34 | + let entry = ash::Entry::load()?; |
| 35 | + |
| 36 | + let instance = { |
| 37 | + let layer_names: &'static [_] = if debug_layer { |
| 38 | + const { &[c"VK_LAYER_KHRONOS_validation".as_ptr()] } |
| 39 | + } else { |
| 40 | + &[] |
| 41 | + }; |
| 42 | + |
| 43 | + let mut extension_names_raw = extension_names.to_vec(); |
| 44 | + extension_names_raw.push(ext::debug_utils::NAME.as_ptr()); |
| 45 | + |
| 46 | + let app_name = c"VulkanTriangle"; |
| 47 | + entry |
| 48 | + .create_instance( |
| 49 | + &vk::InstanceCreateInfo::default() |
| 50 | + .application_info( |
| 51 | + &vk::ApplicationInfo::default() |
| 52 | + .application_name(app_name) |
| 53 | + .application_version(0) |
| 54 | + .engine_name(app_name) |
| 55 | + .engine_version(0) |
| 56 | + .api_version(vk::make_api_version(0, 1, 3, 0)), |
| 57 | + ) |
| 58 | + .enabled_layer_names(layer_names) |
| 59 | + .enabled_extension_names(&extension_names_raw), |
| 60 | + None, |
| 61 | + ) |
| 62 | + .context("create_instance")? |
| 63 | + }; |
| 64 | + |
| 65 | + let debug_instance = ext::debug_utils::Instance::new(&entry, &instance); |
| 66 | + let debug_callback = { |
| 67 | + debug_instance.create_debug_utils_messenger( |
| 68 | + &vk::DebugUtilsMessengerCreateInfoEXT::default() |
| 69 | + .message_severity( |
| 70 | + vk::DebugUtilsMessageSeverityFlagsEXT::ERROR |
| 71 | + | vk::DebugUtilsMessageSeverityFlagsEXT::WARNING |
| 72 | + | vk::DebugUtilsMessageSeverityFlagsEXT::INFO, |
| 73 | + ) |
| 74 | + .message_type( |
| 75 | + vk::DebugUtilsMessageTypeFlagsEXT::GENERAL |
| 76 | + | vk::DebugUtilsMessageTypeFlagsEXT::VALIDATION |
| 77 | + | vk::DebugUtilsMessageTypeFlagsEXT::PERFORMANCE, |
| 78 | + ) |
| 79 | + .pfn_user_callback(Some(vulkan_debug_callback)), |
| 80 | + None, |
| 81 | + )? |
| 82 | + }; |
| 83 | + |
| 84 | + let physical_device = { |
| 85 | + instance |
| 86 | + .enumerate_physical_devices()? |
| 87 | + .into_iter() |
| 88 | + .min_by_key(|phy| { |
| 89 | + match instance.get_physical_device_properties(*phy).device_type { |
| 90 | + vk::PhysicalDeviceType::DISCRETE_GPU => 1, |
| 91 | + vk::PhysicalDeviceType::VIRTUAL_GPU => 2, |
| 92 | + vk::PhysicalDeviceType::INTEGRATED_GPU => 3, |
| 93 | + vk::PhysicalDeviceType::CPU => 4, |
| 94 | + _ => 5, |
| 95 | + } |
| 96 | + }) |
| 97 | + .ok_or(anyhow!("No physical devices available"))? |
| 98 | + }; |
| 99 | + |
| 100 | + let main_queue_family = { |
| 101 | + instance |
| 102 | + .get_physical_device_queue_family_properties(physical_device) |
| 103 | + .into_iter() |
| 104 | + .enumerate() |
| 105 | + .find(|(_, prop)| prop.queue_flags.contains(vk::QueueFlags::GRAPHICS)) |
| 106 | + .ok_or(anyhow!( |
| 107 | + "No graphics + compute queues on physical device available" |
| 108 | + ))? |
| 109 | + .0 as u32 |
| 110 | + }; |
| 111 | + |
| 112 | + let device = instance |
| 113 | + .create_device( |
| 114 | + physical_device, |
| 115 | + &vk::DeviceCreateInfo::default() |
| 116 | + .push_next( |
| 117 | + &mut vk::PhysicalDeviceVulkan12Features::default() |
| 118 | + .vulkan_memory_model(true), |
| 119 | + ) |
| 120 | + .push_next( |
| 121 | + &mut vk::PhysicalDeviceVulkan13Features::default() |
| 122 | + .synchronization2(true) |
| 123 | + .dynamic_rendering(true), |
| 124 | + ) |
| 125 | + .queue_create_infos(&[vk::DeviceQueueCreateInfo::default() |
| 126 | + .queue_family_index(main_queue_family) |
| 127 | + .queue_priorities(&[1.0])]) |
| 128 | + .enabled_extension_names(&[ |
| 129 | + khr::swapchain::NAME.as_ptr(), |
| 130 | + khr::shader_non_semantic_info::NAME.as_ptr(), |
| 131 | + ]), |
| 132 | + None, |
| 133 | + ) |
| 134 | + .context("create_device")?; |
| 135 | + let main_queue = device.get_device_queue(main_queue_family, 0); |
| 136 | + |
| 137 | + Ok(Arc::new(Self { |
| 138 | + debug_ext_device: ext::debug_utils::Device::new(&instance, &device), |
| 139 | + surface_ext: khr::surface::Instance::new(&entry, &instance), |
| 140 | + swapchain_ext: khr::swapchain::Device::new(&instance, &device), |
| 141 | + entry, |
| 142 | + instance, |
| 143 | + physical_device, |
| 144 | + device, |
| 145 | + main_queue_family, |
| 146 | + main_queue, |
| 147 | + debug_ext_instance: debug_instance, |
| 148 | + debug_callback, |
| 149 | + })) |
| 150 | + } |
| 151 | + } |
| 152 | +} |
| 153 | + |
| 154 | +impl Drop for MyDevice { |
| 155 | + fn drop(&mut self) { |
| 156 | + unsafe { |
| 157 | + self.debug_ext_instance |
| 158 | + .destroy_debug_utils_messenger(self.debug_callback, None); |
| 159 | + self.device.destroy_device(None); |
| 160 | + self.instance.destroy_instance(None); |
| 161 | + } |
| 162 | + } |
| 163 | +} |
| 164 | + |
| 165 | +unsafe extern "system" fn vulkan_debug_callback( |
| 166 | + message_severity: vk::DebugUtilsMessageSeverityFlagsEXT, |
| 167 | + _message_type: vk::DebugUtilsMessageTypeFlagsEXT, |
| 168 | + p_callback_data: *const vk::DebugUtilsMessengerCallbackDataEXT<'_>, |
| 169 | + _user_data: *mut std::os::raw::c_void, |
| 170 | +) -> vk::Bool32 { |
| 171 | + unsafe { |
| 172 | + let callback_data = *p_callback_data; |
| 173 | + let message_id_name = callback_data |
| 174 | + .message_id_name_as_c_str() |
| 175 | + .map_or(Cow::Borrowed(""), CStr::to_string_lossy); |
| 176 | + let message = callback_data |
| 177 | + .message_as_c_str() |
| 178 | + .map_or(Cow::Borrowed(""), CStr::to_string_lossy); |
| 179 | + |
| 180 | + println!("{message_severity:?}: [{message_id_name}] : {message}"); |
| 181 | + vk::FALSE |
| 182 | + } |
| 183 | +} |
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