Code examples for opening windows for various purposes in very few bytes
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blackle 6ecfc7a26e make switch statement an if statement 1 ano atrás
Section-Header-Stripper @ a4c7aea4f0 Add submodules, better make 1 ano atrás
noelfver @ 3022b4ef8b Remove gtk-webkit and replace with sdl2-opengl 1 ano atrás
vondehi @ 859c6c11d0 Add submodules, better make 1 ano atrás
.gitignore Remove gtk-webkit and replace with sdl2-opengl 1 ano atrás
.gitmodules Remove gtk-webkit and replace with sdl2-opengl 1 ano atrás
Makefile Fix #1 by adding debug makefile variable 1 ano atrás
README.md Fix #1 by adding debug makefile variable 1 ano atrás
gtk-opengl.c Remove gtk-webkit and replace with sdl2-opengl 1 ano atrás
index.html initialize webgl in a really shitty unoptimized way 1 ano atrás
index.html.inc woops, forgot index.html.inc 1 ano atrás
sdl2-opengl.c make switch statement an if statement 1 ano atrás
shader.frag Remove iTime from shaders, render each only once 1 ano atrás
shader_minifier.exe Opengl with gtk example 1 ano atrás
xlib-opengl.c Sizecode xlib a bit 1 ano atrás

README.md

Linux-OpenGL-Examples

Here are examples of rendering a shader full screen on linux. All of these examples do it in less than 2 kilobytes thanks to vondehi and copious amounts of ELF stripping.

There are three examples, each using a different library to open a window and get an opengl context.

xlib-opengl - 1492 bytes

Vanilla xlib is the largest of the bunch and the most brittle. It is highly not recommended to use xlib in a demo unless you cannot assume these other libraries will be on the system. (note, unlike all the other programs that close with the window manager’s quit key combination, this program must be closed with ESC.)

gtk-opengl - 1382 bytes

GTK is a step up from xlib, being both smaller and more robust. If the compo you are entering doesn’t allow using SDL2, GTK is an ok alternative. Before switching to GCC 8.3.0, this was 100 bytes smaller than it is now. I am not sure why it is larger, but this likely means it can be sizecoded/stripped further.

sdl2-opengl - 996 bytes

Using SDL2 will give you very small binaries. Use SDL2 whenever you can, as it also has a few other useful subsystems at minimal cost (for example, audio.)