X11-Bad-Apple

Bad Apple!! using X11 Graphics. Written in C++

Demo (Realtime)

Demo run on local linux server with 30ms frame-to-frame delay. (if running on a remote server, you may want to remove this delay)

Usage

git clone [email protected]:Ti1mmy/X11-Bad-Apple.git X11-Bad-Apple
cd X11-Bad-Apple/src
make

./X11-Bad-Apple

• Note that you will have to have X11 installed (and an X11 server running) for this to work.
  • On Ubuntu, you can install X11 with sudo apt install libx11-dev
  • I suggest Xming on Windows, but you can use any X11 server.

How it works

This program represents each frame as a 2D array of (black and white) pixels. The program interprets each frame, which make up a Video class which is what is ultimately printed.

See scripts for more information on how the frames are generated automatically using ffmpeg and Python.

Plans

The code currently suffers from the way frames are read into memory. I plan to fix this by using a different method of storing the frames. I have a few ideas, but I'm open to suggestions.

Speed	Branch	Frame Storing Method	Reasoning	Drawback
#1	char-array	Stores pixel data as a char, with each line being a string.	Very easy to read, and std::string is very useful	Stores way too much data per pixel (1 byte) when I really only need black or white (1 bit, or 1/8 of a byte). Stack size limited when running the full 720p upscaled video.
#2	heap-allocate	Stores string arrays on the heap instead of waiting for them to be initialized on the stack.	Theoretically allows for each frame to be allocated in seperate chunks in memory, meaning arbitrarily large video playback.	Requires creating vectors on the heap, which have some overhead resulting in very long compile times.
#3	enum-scale-up	Stores pixel data as a one-bit enum (hoped to solve the issue from char-array)	Saves each black and white pixel as a 1 bit enum, meaning only 1/8 of the memory is needed.	Requires initializing large arrays that don't seem to be currently playing well. I look to improve this.
?	some-other-fix	Open a PR!