Boomer
Zoomer application for Linux.
- Development is done on https://twitch.tv/tsoding
- Archive of the streams: https://www.twitch.tv/collections/HlRy-q69uBXmpQ
Dependencies
Debian
$ sudo apt-get install libgl1-mesa-dev libx11-dev libxext-dev libxrandr-devQuick Start
$ nimble build
$ ./boomer --help
$ ./boomer # to just start usingDeveloper Capabilities
For additional Developer Capabilities compile the application with the following flags:
$ nimble build -d:developerThis will enable reloading the shaders with Ctrl+R. The shader files (frag.glsl and vert.glsl) should be located in the same folder as boomer.nim for this feature to work. If the shader files not found the program won't even start.
Keep in mind that the developer build is not suitable for day-to-day usage because it creates the external dependency on the shader files. Compiling the program without -d:developer "bakes" the shaders into the executable and eliminates the dependency.
Controls
| Control | Description |
|---|---|
| 0 | Reset the application state (position, scale, velocity, etc). |
| q or ESC | Quit the application. |
| r | Reload configuration. |
| Ctrl + r | Reload the shaders (only for Developer mode) |
| f | Toggle flashlight effect. |
| Drag with left mouse button | Move the image around. |
| Scroll wheel or =/- | Zoom in/out. |
| Ctrl + Scroll wheel | Change the radious of the flaslight. |
Configuration
Configuration file is located at $HOME/.config/boomer/config and has roughly the following format:
<param-1> = <value-1>
<param-2> = <value-2>
# comment
<param-3> = <value-3>
You can generate a new config at $HOME/.config/boomer/config with $ boomer --new-config.
Supported parameters:
| Name | Description |
|---|---|
| min_scale | The smallest it can get when zooming out |
| scroll_speed | How quickly you can zoom in/out by scrolling |
| drag_friction | How quickly the movement slows down after dragging |
| scale_friction | How quickly the zoom slows down after scrolling |
Experimental Features Compilation Flags
Experimental or unstable features can be enabled by passing the following flags to nimble build command:
| Flag | Description |
|---|---|
-d:live |
Live image update. See issue #26. |
-d:mitshm |
Enables faster Live image update using MIT-SHM X11 extension. Should be used along with -d:live to have an effect |
-d:select |
Application lets the user to click on te window to "track" and it will track that specific window instead of the whole screen. |
NixOS Overlay
$ git clone git://github.com/tsoding/boomer.git /path/to/boomer
$ mkdir -p ~/.config/nixpkgs/overlays
$ cd ~/.config/nixpkgs/overlays
$ ln -s /path/to/boomer/overlay/ boomer
$ nix-env -iA nixos.boomer
References
- https://github.com/nim-lang/x11/blob/bf9dc74dd196a98b7c2a2beea4d92640734f7c60/examples/x11ex.nim
- http://archive.xfce.org/src/xfce/xfwm4/4.13/
- https://www.khronos.org/opengl/wiki/Programming_OpenGL_in_Linux:_GLX_and_Xlib
- https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glXIntro.xml
- https://stackoverflow.com/questions/24988164/c-fast-screenshots-in-linux-for-use-with-opencv
- https://github.com/lolilolicon/xrectsel
- https://github.com/naelstrof/slop
- https://www.x.org/releases/X11R7.7/doc/xextproto/shm.html
- http://netpbm.sourceforge.net/doc/ppm.html
- https://github.com/def-/nim-syscall
- https://github.com/dreamer/scrot
Support
You can support my work via
- Twitch channel: https://www.twitch.tv/subs/tsoding
- Patreon: https://www.patreon.com/tsoding