vidya/crates/renderer/src/debug.rs
2025-09-20 15:27:21 +02:00

54 lines
2.1 KiB
Rust

use ash::vk;
use tracing::{Level, event};
/// # Safety
/// `str` must be a valid null-terminated C string or null.
unsafe fn str_from_raw_parts<'a>(str: *const i8) -> std::borrow::Cow<'a, str> {
use std::{borrow::Cow, ffi};
if str.is_null() {
Cow::from("")
} else {
unsafe { ffi::CStr::from_ptr(str).to_string_lossy() }
}
}
pub(super) unsafe extern "system" fn debug_callback(
message_severity: vk::DebugUtilsMessageSeverityFlagsEXT,
message_type: vk::DebugUtilsMessageTypeFlagsEXT,
callback_data: *const vk::DebugUtilsMessengerCallbackDataEXT<'_>,
user_data: *mut core::ffi::c_void,
) -> vk::Bool32 {
_ = user_data;
// SAFETY:
// - `callback_data` is a valid pointer to `DebugUtilsMessengerCallbackDataEXT`.
// - `p_message_id_name` is a valid null-terminated C string or NULL.
// - `p_message` is a valid null-terminated C string or NULL.
let (message_id_number, message_id_name, message) = unsafe {
let callback_data = &*callback_data;
let message_id_number = callback_data.message_id_number;
let message_id_name = str_from_raw_parts(callback_data.p_message_id_name);
let message = str_from_raw_parts(callback_data.p_message);
(message_id_number, message_id_name, message)
};
match message_severity {
vk::DebugUtilsMessageSeverityFlagsEXT::ERROR => {
event!(target: "VK::DebugUtils", Level::ERROR, "{message_type:?} [{message_id_name}({message_id_number})]: {message}");
}
vk::DebugUtilsMessageSeverityFlagsEXT::VERBOSE => {
event!(target: "VK::DebugUtils", Level::TRACE, "{message_type:?} [{message_id_name}({message_id_number})]: {message}");
}
vk::DebugUtilsMessageSeverityFlagsEXT::INFO => {
event!(target: "VK::DebugUtils", Level::INFO, "{message_type:?} [{message_id_name}({message_id_number})]: {message}");
}
vk::DebugUtilsMessageSeverityFlagsEXT::WARNING => {
event!(target: "VK::DebugUtils", Level::WARN, "{message_type:?} [{message_id_name}({message_id_number})]: {message}");
}
_ => unreachable!(),
}
vk::FALSE
}