WIP Initializing Vulkan

Cargo.lock

@@ -32,6 +32,15 @@ version = "1.0.54"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a99269dff3bc004caa411f38845c20303f1e393ca2bd6581576fa3a7f59577d"
 
+[[package]]
+name = "ash"
+version = "0.36.0+1.3.206"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ceea9c64653169f33f946debf0a41568afc4e23a4c37d29004a23b2ffbfb4034"
+dependencies = [
+ "libloading",
+]
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -974,6 +983,7 @@ name = "pteropus"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "ash",
  "bytes",
  "clap 3.1.0",
  "futures",

Cargo.toml

@@ -17,3 +17,4 @@ anyhow = "~1.0"
 futures = "~0.3"
 bytes = "~1.1"
 las = {version="~0.7", features=["laz"]}
+ash = {version="~0.36", features=["linked"]}

src/main.rs

@@ -1,4 +1,11 @@
-use {clap::Parser, geo_types::Point, las::Read as LasRead, proj::Proj, tokio::io::AsyncReadExt};
+use {
+    ash::{vk, Entry},
+    clap::Parser,
+    geo_types::Point,
+    las::Read as LasRead,
+    proj::Proj,
+    tokio::io::AsyncReadExt,
+};
 
 mod geonb;
 
@@ -7,41 +14,123 @@ mod geonb;
 struct Args {
     // Latitude to fetch LIDAR tile at
     #[clap(long)]
-    latitude: f64,
+    latitude: Option<f64>,
 
     // Longitude to fetch LIDAR tile at
     #[clap(long)]
-    longitude: f64,
+    longitude: Option<f64>,
+}
+
+fn pretty_print_memory_size(x: u64) -> String {
+    if x > 1_000_000_000 {
+        format!("{:.1}G", x / 1_000_000_000)
+    } else if x > 1_000_000 {
+        format!("{:.0}M", x / 1_000_000)
+    } else if x > 1000 {
+        format!("{:.0}K", x / 1000)
+    } else {
+        format!("{}", x)
+    }
+}
+
+fn init_vulkan() {
+    let instance = {
+        let entry = Entry::linked();
+        let app_info = vk::ApplicationInfo {
+            api_version: vk::make_api_version(0, 1, 0, 0),
+            ..Default::default()
+        };
+        let create_info = vk::InstanceCreateInfo {
+            p_application_info: &app_info,
+            ..Default::default()
+        };
+        unsafe {
+            entry
+                .create_instance(&create_info, None)
+                .expect("vulkan instance")
+        }
+    };
+
+    unsafe {
+        instance
+            .enumerate_physical_devices()
+            .expect("vulkan physical devices")
+            .iter()
+            .for_each(|&device| {
+                let device_properties = instance.get_physical_device_properties(device);
+                let api_version = device_properties.api_version;
+                let api_major_version = (api_version >> 22) & 0x7f;
+                let api_minor_version = (api_version >> 12) & 0x3ff;
+                println!(
+                    "{}:\n\tAPI Version{}.{}\n\t{:?}",
+                    std::ffi::CStr::from_ptr(&device_properties.device_name[0])
+                        .to_str()
+                        .expect("device name string"),
+                    api_major_version,
+                    api_minor_version,
+                    device_properties.device_type
+                );
+                println!("\tMemory:");
+                let memory_properties = instance.get_physical_device_memory_properties(device);
+                for i in 0..memory_properties.memory_type_count as usize {
+                    let memory_type = memory_properties.memory_types[i];
+                    println!("\t\t{:?}", memory_type.property_flags);
+                    let heap_index = memory_type.heap_index as usize;
+                    let heap = memory_properties.memory_heaps[heap_index];
+                    println!(
+                        "\t\t\t{}: {}\t{:?}",
+                        heap_index,
+                        pretty_print_memory_size(heap.size),
+                        heap.flags
+                    );
+                }
+                println!("\tQueues:");
+                instance
+                    .get_physical_device_queue_family_properties(device)
+                    .iter()
+                    .enumerate()
+                    .for_each(|(i, queue_info)| {
+                        println!(
+                            "\t\t{}: {:?} ({})",
+                            i, queue_info.queue_flags, queue_info.queue_count
+                        );
+                    });
+            });
+    }
 }
 
 #[tokio::main]
 async fn main() -> Result<(), anyhow::Error> {
     let args = Args::parse();
 
-    let location = Proj::new_known_crs("+proj=longlat +datum=WGS84", "EPSG:2953", None)
-        .unwrap()
-        .convert(Point::new(args.longitude, args.latitude))
-        .unwrap();
-    println!("{:?}", location);
-    let mut las_reader =
-        tokio::io::BufReader::new(geonb::get_lidar_tile_around_point(location).await?);
-    let mut las_bytes = Vec::new();
-    let mut buffer = [0_u8; 4096];
-    let mut byte_count = 0;
-    loop {
-        let num_bytes = las_reader.read(&mut buffer).await?;
-        if num_bytes == 0 {
-            break;
+    init_vulkan();
+
+    if let (Some(latitude), Some(longitude)) = (args.latitude, args.longitude) {
+        let location = Proj::new_known_crs("+proj=longlat +datum=WGS84", "EPSG:2953", None)
+            .unwrap()
+            .convert(Point::new(longitude, latitude))
+            .unwrap();
+        println!("{:?}", location);
+        let mut las_reader =
+            tokio::io::BufReader::new(geonb::get_lidar_tile_around_point(location).await?);
+        let mut las_bytes = Vec::new();
+        let mut buffer = [0_u8; 4096];
+        let mut byte_count = 0;
+        loop {
+            let num_bytes = las_reader.read(&mut buffer).await?;
+            if num_bytes == 0 {
+                break;
+            }
+            byte_count += num_bytes;
+            print!("{} bytes read\r", byte_count);
+            las_bytes.extend_from_slice(&buffer[0..num_bytes]);
+        }
+        println!();
+        let mut las_reader = las::Reader::new(std::io::Cursor::new(las_bytes))?;
+        for wrapped_point in las_reader.points().take(10) {
+            let point = wrapped_point.unwrap();
+            println!("Point coordinates: ({}, {}, {})", point.x, point.y, point.z);
         }
-        byte_count += num_bytes;
-        print!("{} bytes read\r", byte_count);
-        las_bytes.extend_from_slice(&buffer[0..num_bytes]);
-    }
-    println!();
-    let mut las_reader = las::Reader::new(std::io::Cursor::new(las_bytes))?;
-    for wrapped_point in las_reader.points().take(10) {
-        let point = wrapped_point.unwrap();
-        println!("Point coordinates: ({}, {}, {})", point.x, point.y, point.z);
     }
 
     Ok(())