111 lines
3.4 KiB
Rust
111 lines
3.4 KiB
Rust
mod app;
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pub use app::App;
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use app::AppData;
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use ::anyhow::{anyhow, Result};
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use ::log::*;
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use ::std::collections::HashSet;
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use ::std::ffi::CStr;
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use ::std::os::raw::c_void;
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use ::vulkanalia::prelude::v1_0::*;
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use ::vulkanalia::window as vk_window;
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use ::winit::window::Window;
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pub const VALIDATION_ENABLED: bool = cfg!(debug_assertions);
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pub const VALIDATION_LAYER: vk::ExtensionName =
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vk::ExtensionName::from_bytes(b"VK_LAYER_KHRONOS_validation");
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pub fn create_app(window: &Window) -> Result<App> {
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Ok(unsafe { App::create(&window)? })
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}
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extern "system" fn debug_callback(
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severity: vk::DebugUtilsMessageSeverityFlagsEXT,
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type_: vk::DebugUtilsMessageTypeFlagsEXT,
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data: *const vk::DebugUtilsMessengerCallbackDataEXT,
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_: *mut c_void,
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) -> vk::Bool32 {
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let data = unsafe { *data };
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let message = unsafe { CStr::from_ptr(data.message) }.to_string_lossy();
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if severity >= vk::DebugUtilsMessageSeverityFlagsEXT::ERROR {
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error!("({:?}) {}", type_, message);
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} else if severity >= vk::DebugUtilsMessageSeverityFlagsEXT::WARNING {
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warn!("({:?}) {}", type_, message);
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} else if severity >= vk::DebugUtilsMessageSeverityFlagsEXT::INFO {
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debug!("({:?}) {}", type_, message);
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} else {
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trace!("({:?}) {}", type_, message);
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}
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vk::FALSE
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}
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pub(crate) unsafe fn create_instance(
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window: &Window,
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entry: &Entry,
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data: &mut AppData,
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) -> Result<Instance> {
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let application_info = vk::ApplicationInfo::builder()
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.application_name(b"Vulkan Tutorial\0")
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.application_version(vk::make_version(1, 0, 0))
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.engine_name(b"No Engine\0")
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.engine_version(vk::make_version(1, 0, 0))
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.api_version(vk::make_version(1, 0, 0));
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let available_layers = entry
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.enumerate_instance_layer_properties()?
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.iter()
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.map(|l| l.layer_name)
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.collect::<HashSet<_>>();
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if VALIDATION_ENABLED && !available_layers.contains(&VALIDATION_LAYER) {
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return Err(anyhow!("Validation layer requested but not supported."));
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}
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let layers = if VALIDATION_ENABLED {
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vec![VALIDATION_LAYER.as_ptr()]
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} else {
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Vec::new()
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};
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let mut extensions = vk_window::get_required_instance_extensions(window)
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.iter()
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.map(|e| e.as_ptr())
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.collect::<Vec<_>>();
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if VALIDATION_ENABLED {
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extensions.push(vk::EXT_DEBUG_UTILS_EXTENSION.name.as_ptr());
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}
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// Compatibility extension for macOS
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let flags = if entry
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.enumerate_instance_extension_properties(None)?
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.iter()
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.any(|e| e.extension_name == vk::KHR_PORTABILITY_ENUMERATION_EXTENSION.name)
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{
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extensions.push(vk::KHR_PORTABILITY_ENUMERATION_EXTENSION.name.as_ptr());
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vk::InstanceCreateFlags::ENUMERATE_PORTABILITY_KHR
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} else {
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vk::InstanceCreateFlags::empty()
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};
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let mut info = vk::InstanceCreateInfo::builder()
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.application_info(&application_info)
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.enabled_layer_names(&layers)
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.enabled_extension_names(&extensions)
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.flags(flags);
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let mut debug_info = vk::DebugUtilsMessengerCreateInfoEXT::builder()
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.message_severity(vk::DebugUtilsMessageSeverityFlagsEXT::all())
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.message_type(vk::DebugUtilsMessageTypeFlagsEXT::all())
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.user_callback(Some(debug_callback));
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if VALIDATION_ENABLED {
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info = info.push_next(&mut debug_info);
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}
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let instance = entry.create_instance(&info, None)?;
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Ok(instance)
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}
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