feat: smarter winapi-based console window handling

Cargo.lock

@@ -94,6 +94,7 @@ dependencies = [
  "tracing",
  "tracing-error",
  "tracing-subscriber",
+ "winapi",
 ]
 
 [[package]]

Cargo.toml

@@ -8,9 +8,10 @@ edition = "2021"
 [dependencies]
 lazy_static = "1.4.0"
 spin_sleep = "1.1.1"
-tracing = { version = "0.1.37", features = ["max_level_debug", "release_max_level_warn"]}
+tracing = { version = "0.1.37", features = ["max_level_debug", "release_max_level_debug"]}
 tracing-error = "0.2.0"
 tracing-subscriber = {version = "0.3.17", features = ["env-filter"]}
+winapi = { version = "0.3", features = ["consoleapi", "fileapi", "handleapi", "processenv", "winbase", "wincon", "winnt", "winuser", "windef", "minwindef"] }
 
 [dependencies.sdl2]
 version = "0.38"

src/main.rs

@@ -1,3 +1,5 @@
+#![windows_subsystem = "windows"]
+
 use crate::constants::{WINDOW_HEIGHT, WINDOW_WIDTH};
 use crate::game::Game;
 use sdl2::event::{Event, WindowEvent};
@@ -7,7 +9,46 @@ use tracing::event;
 use tracing_error::ErrorLayer;
 use tracing_subscriber::layer::SubscriberExt;
 
+#[cfg(windows)]
+use winapi::{
+    shared::{ntdef::NULL, windef::HWND},
+    um::{
+        fileapi::{CreateFileA, OPEN_EXISTING},
+        handleapi::INVALID_HANDLE_VALUE,
+        processenv::SetStdHandle,
+        winbase::{STD_ERROR_HANDLE, STD_OUTPUT_HANDLE},
+        wincon::{AttachConsole, GetConsoleWindow},
+        winnt::{FILE_SHARE_READ, FILE_SHARE_WRITE, GENERIC_READ, GENERIC_WRITE},
+    },
+};
+
+#[cfg(windows)]
+unsafe fn attach_console() {
+    if GetConsoleWindow() != std::ptr::null_mut() as HWND {
+        return;
+    }
+
+    if AttachConsole(winapi::um::wincon::ATTACH_PARENT_PROCESS) != 0 {
+        let handle = CreateFileA(
+            "CONOUT$\0".as_ptr() as *const i8,
+            GENERIC_READ | GENERIC_WRITE,
+            FILE_SHARE_READ | FILE_SHARE_WRITE,
+            std::ptr::null_mut(),
+            OPEN_EXISTING,
+            0,
+            NULL,
+        );
+
+        if handle != INVALID_HANDLE_VALUE {
+            SetStdHandle(STD_OUTPUT_HANDLE, handle);
+            SetStdHandle(STD_ERROR_HANDLE, handle);
+        }
+    }
+    // Do NOT call AllocConsole here - we don't want a console when launched from Explorer
+}
+
 mod animation;
+mod audio;
 mod constants;
 mod direction;
 mod entity;
@@ -18,8 +59,14 @@ mod modulation;
 mod pacman;
 
 pub fn main() {
+    #[cfg(windows)]
+    unsafe {
+        attach_console();
+    }
+
     let sdl_context = sdl2::init().unwrap();
     let video_subsystem = sdl_context.video().unwrap();
+    let audio_subsystem = sdl_context.audio().unwrap();
     let ttf_context = sdl2::ttf::init().unwrap();
 
     // Setup tracing