This project was develop for learning reasons and has some know issues.

It is fully writen in english for portfolio reasons.

It aims to build an application which through multiple threads draws a mandelbrot fractal piece (chunk) by piece using xlib to plot the result and pthread to handle the multithreading. The main.cpp file calls the MultiThreadMandelbrotHandler which will orchestrates the resources based on the configurations defined at constants.h. The simple flow to process the result is:

Initialize all the needed resources:

X11Config is responsible for setting up the screen and result drawing.

ChunkManager contains two buffers (ThreadQueue) which will store initialChunks and toDrawChunks.

Mandelbrot is the class responsible for the fractal calculation. It iterates until the defined ITERATION_LIMIT and gets a color from ColorPallete to return as result.

A chunk is a square defined by initial and final dots defined by a processing based on HEIGHT and WIHDHT against CHUNK_SIZE.

Will iterate on all created chunks and calculate mandelbrot iterations for each pixel and store it at the chunk and move to the toDraw buffer.

This is multithreaded.

Will iterate on toDraw buffer and draw each pixel using x11.

This could be multithreaded, but the current implementation brakes with more than 1 thread on the drawer.

• The chunk quantity limit is already configured, configuring a window bigger than 800x800 or setting chunks smaller than 100 will cause a runtime exception.
• The drawer cannot be multithreaded, probably due to an error on the mutex usage.

$ cmake -B cmake-build-debug
$ cmake --build cmake-build-debug
$ ./cmake-build-debug/mandelbrot_fractal 

• Multithreading Using pthreads in C language (Part 1)
• Multithreading in C Using Pthreads (part 2) - Order Violation Bugs
• Mastering Multithreading with C++ – POSIX Threads | packtpub.com

• What's so special about the Mandelbrot Set? - Numberphile
• Multithreaded Mandelbrot Renderer | C++ 11
• Let’s draw the Mandelbrot set!

• X11 C++ Tutorial - Window, Input, Drawing