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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475const std = @import("std");const vaxis = @import("vaxis");
fn parseIterations(allocator: std.mem.Allocator, args: std.process.Args) !usize { var it = try args.iterateAllocator(allocator); defer it.deinit(); _ = it.next(); if (it.next()) |val| { return std.fmt.parseUnsigned(usize, val, 10); } return 200;}
fn printResults(writer: *std.Io.Writer, label: []const u8, iterations: usize, elapsed: std.Io.Duration, total_bytes: u64) !void { const ns_per_frame = @divTrunc(elapsed.toNanoseconds(), iterations); const bytes_per_frame = total_bytes / iterations; try writer.print( "{s}: frames={d} total_time={f} ns/frame={d} bytes={d} bytes/frame={d}\n", .{ label, iterations, elapsed, ns_per_frame, total_bytes, bytes_per_frame }, );}
pub fn main(init: std.process.Init) !void { const io = init.io; const allocator = init.gpa;
const iterations = try parseIterations(allocator, init.minimal.args);
var vx = try vaxis.init(io, allocator, init.environ_map, .{}); var init_writer: std.Io.Writer.Allocating = .init(allocator); defer init_writer.deinit(); defer vx.deinit(allocator, &init_writer.writer);
const winsize = vaxis.Winsize{ .rows = 24, .cols = 80, .x_pixel = 0, .y_pixel = 0 }; try vx.resize(allocator, &init_writer.writer, winsize);
const stdout_file: std.Io.File = .stdout(); var stdout_buf: [1024]u8 = undefined; var stdout_writer = stdout_file.writer(io, &stdout_buf); const stdout = &stdout_writer.interface;
{ var buf: [1024]u8 = undefined; var idle_writer: std.Io.Writer.Discarding = .init(&buf); var timer: std.Io.Timestamp = .now(io, .real); var i: usize = 0; while (i < iterations) : (i += 1) { try vx.render(&idle_writer.writer); } const idle_ns = timer.untilNow(io, .real); const idle_bytes = idle_writer.fullCount(); try printResults(stdout, "idle", iterations, idle_ns, idle_bytes); }
{ var buf: [1024]u8 = undefined; var dirty_writer: std.Io.Writer.Discarding = .init(&buf); var timer: std.Io.Timestamp = .now(io, .real); var i: usize = 0; while (i < iterations) : (i += 1) { vx.queueRefresh(); try vx.render(&dirty_writer.writer); } const dirty_ns = timer.untilNow(io, .real); const dirty_bytes = dirty_writer.fullCount(); try printResults(stdout, "dirty", iterations, dirty_ns, dirty_bytes); }
try stdout.flush();}
test { std.testing.refAllDecls(@This());}