refactors, boiler for looping read

src/input.zig

@@ -0,0 +1,10 @@
+const std = @import("std");
+
+const util = @import("util.zig");
+const threads = @import("threads.zig");
+
+pub fn main_loop(f: std.fs.File, buffs: util.Buffers, thread_mgr: threads.ThreadManager) !void {
+    _ = thread_mgr;
+    _ = buffs;
+    _ = f;
+}

src/main.zig

@@ -2,8 +2,9 @@ const std = @import("std");
 
 const util = @import("util.zig");
 const threads = @import("threads.zig");
+const input = @import("input.zig");
 
-const InitError = error {
+const InitError = error{
     NotEnoughArgs,
     InvalidDimension,
     InvalidQuality,
@@ -46,7 +47,7 @@ fn get_opts() !util.Options {
     defer args.deinit();
     _ = args.next();
 
-    return util.Options {
+    return util.Options{
         .width = try get_dim(try next_arg(&args)),
         .height = try get_dim(try next_arg(&args)),
         .quality = try get_qual(try next_arg(&args)),
@@ -62,4 +63,7 @@ pub fn main() !void {
 
     var thread_manager = try threads.ThreadManager.init(std.heap.page_allocator, opts.n_quant_jobs);
     defer thread_manager.deinit();
+
+    var f = std.io.getStdIn();
+    try input.main_loop(f, buffs, thread_manager);
 }

src/util.zig

@@ -26,7 +26,7 @@ pub const JobQueue = struct {
     const Node = Self.Node;
 
     pub fn init(pool: JobPool) Self {
-        return Self {
+        return Self{
             .mutex = std.Thread.Mutex{},
             .queue = List{},
             .job_pool = pool,
@@ -79,7 +79,7 @@ pub const Buffers = struct {
         var alloc = arena.allocator();
         const block_w = w / 16;
         const block_h = h / 16;
-        var buffs = Self {
+        var buffs = Self{
             .arena = arena,
 
             .Y = try alloc.alloc([][4]Block, block_h),