Acidwarp

What is Acidwarp?

Acidwarp is an eye candy program which displays various patterns and animates them by changing the palette. Originally it was an MS-DOS program by Noah Spurrier. This is a port by Boris Gjenero using the SDL 1.2 library. It is based on the Linux SVGALib port by Steven Wills. This port can be built for Windows, Linux and other platforms. Using Emscripten, it can be built to run in web browsers.

Using the program

Use the following keys to control the program:

Key	Action
Up	Rotate palette faster
Down	Rotate palette slower
l	(L)ock: stay on current pattern, but keep changing palette
k	switch to the next pallette
p	(P)ause: totally stops pallette rotation and pattern changing.
q	(Q)uit: causes Acidwarp to exit
n	(N)ext pattern

Double click on the window to toggle full screen mode.

The program takes some optional command line arguments. To see all of these, run: acidwarp -h.

Acidwarp originally worked in 320x200 256 colour VGA mode and generated patterns using lookup tables to avoid slow floating point calculations. This port defaults to using floating point for image generation. This allows many patterns to be scaled up to high resolution. If you want the original image generator, add the -o command line argument.

Building the program

Build the program by running make. Version 1.2.x of the SDL library is required, and detected via sdl-config. The icon requires ImageMagick convert for resizing and xxd for incorporating it in the program. Adding the icon to the Windows executable also requires icotool from icoutils and windres.

You can build for Windows from Cygwin. There CC defaults to i686-w64-mingw32-gcc.

For building with Emscripten, use: emmake make

Acidwarp can now be built with SDL 2 using make SDL=2. Experimental hardware accelerated palette cycling using SDL 2 and OpenGL ES 2.0 can be built with make GL=1. This can also be built with Emscripten for use with WebGL 1.0 using emmake make GL=1.

Further resources

For more information, see the original README file.

Text for acidwarp -h and Warper projector instructions are found in warp_text.c.

The original author's site about Acidwarp: http://www.noah.org/acidwarp/