https://github.com/xyproto/tinytriangle

:small_red_triangle_down: OpenGL and audio in less than 4k on Linux
https://github.com/xyproto/tinytriangle

Last synced: 5 months ago
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:small_red_triangle_down: OpenGL and audio in less than 4k on Linux

• Host: GitHub
• URL: https://github.com/xyproto/tinytriangle
• Owner: xyproto
• License: zlib
• Created: 2012-12-14T13:07:51.000Z (almost 13 years ago)
• Default Branch: master
• Last Pushed: 2014-03-25T09:31:59.000Z (over 11 years ago)
• Last Synced: 2025-01-11T00:53:27.972Z (9 months ago)
• Language: C
• Homepage:
• Size: 211 KB
• Stars: 1
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
Tiny Triangle

=============

A skeleton for 4k intros on Linux

Uses ALSA for audio and SDL+OpenGL for graphics.

Executable ends up at 1378 bytes at the time of writing.

(Slightly larger if compiled with gcc instead of clang).

Resources:

    http://www.int21.de/linux4k/

    http://ftp.kameli.net/pub/fit/misc/presis_asm06.pdf

    http://glprogramming.com/red/chapter07.html

    http://www.alsa-project.org/alsa-doc/alsa-lib/pcm.html

Building the 32-bit version on x86_64 for x86_64:

    To build with make:

	make m32on64

    Requirements:

        elfkicker (only used in the build process)

        xz

        lib32-sdl

        lib32-glibc

        lib32-nvidia-utils (or lib32-libgl)

        lib32-alsa-lib

Building the native version (32-bit for i686, 64-bit for x86_64):

    To build with make:

	make native

    Requirements:

        elfkicker (only used in the build process)

        xz

        sdl

        glibc

        nvidia-utils (or libgl)

        alsa-lib

About unpackme.sh:

    x=/dev/shm/x

	prepares to write the uncompressed elf file to shared memory as "x"

    dd bs=1 skip=82 if=$0 of=$x.xz 2>$x

	dd reads from "if": $0, which is the file with the shellscript + compressed elf file combined

	and writes to "of": $x.xz, which is a file in shared memory (/dev/shm/x.xz)

	bs=1 and skip=82 sets byte size to 1 and skips the 82 first bytes (the shell code)

	2>$x gets rid of the output from dd by piping from stderr to $x (/dev/shm/x).

	The reason why $x is used instead of /dev/null is because it's shorter to write and

	since /dev/shm/x will be overwritten by the next command in any case.

    xz -df $x.xz

	extracts the compressed elf file in in /dev/shm/x.xz and writes the result

	to /dev/shm/x. It overwrites /dev/shm/x because of the "f" flag.

	-d is for decompress

    chmod +x $x

	makes the uncompressed ELF at /dev/shm/x executable

    $x

	runs the executable ELF at /dev/shm/x

ZLIB licensed

Improvements? Comments? Send me an e-mail or create an issue

Alexander Rødseth