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Tuan Kuranes Kuranes

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@kig
kig / multifile.js
Created May 21, 2010 00:42
/* MultiFile - A JavaScript library to load multiple files from
tar archives and json_packed files (see http://gist.github.com/407595)
Example: Loading multiple images from a tarball.
MultiFile.load('images.tar', function(xhr) {
this.files.forEach(function(f) {
var e = document.createElement('div');
document.body.appendChild(e);
var p = document.createElement('p');
@kig
kig / gzip.js
Last active August 1, 2019 08:59
TarGZ = function(){};
// Load and parse archive, calls onload after loading all files.
TarGZ.load = function(url, onload, onstream, onerror) {
var o = new TarGZ();
o.onload = onload;
o.onerror = onerror;
o.onstream = onstream;
o.load(url);
return o;
@aras-p
aras-p / rgbm.c
Created September 7, 2011 04:50
Encoding to RGBM
// in our case,
const float kRGBMMaxRange = 8.0f;
const float kOneOverRGBMMaxRange = 1.0f / kRGBMMaxRange;
// encode to RGBM, c = ARGB colors in 0..1 floats
float r = c[1] * kOneOverRGBMMaxRange;
float g = c[2] * kOneOverRGBMMaxRange;
float b = c[3] * kOneOverRGBMMaxRange;
@tbranyen
tbranyen / use.js
Created January 13, 2012 01:21
A RequireJS compatible plugin to provide shimming capabilities declaratively.
(function() {
var buildMap = {};
/* RequireJS Use Plugin v0.2.0
* Copyright 2012, Tim Branyen (@tbranyen)
* use.js may be freely distributed under the MIT license.
*/
define({
version: "0.2.0",
@Flexi23
Flexi23 / gist:1713774
Created January 31, 2012 23:27
GLSL 2D vector buffer in a texture with a custom floating point precision
/*
These are the helper functions to store and to restore a 2D vector with a custom 16 floating point precision in a texture.
The 16 bit are used as follows: 1 bit is for the sign, 4 bits are used for the exponent, the remaining 11 bit are for the mantissa.
The exponent bias is asymmetric so that the maximum representable number is 2047 (and bigger numbers will be cut)
the accuracy from 1024 - 2047 is one integer
512-1023 it's 1/2 int
256-511 it's 1/4 int and so forth...
between 0 and 1/16 the accuracy is the highest with 1/2048 (which makes 1/32768 the minimum representable number)
@caryfitzhugh
caryfitzhugh / gist:2015072
Created March 11, 2012 04:46
Simple Proof Of Concept For SVG image annotation in browser
<html>
<head>
<script src="http://code.jquery.com/jquery-1.7.1.min.js"></script>
<script src="http://github.com/DmitryBaranovskiy/raphael/raw/master/raphael-min.js"></script>
<script>
/**
* A Simple Vector Shape Drawing App with RaphaelJS and jQuery
* copyright 2010 Kayla Rose Martin - Licensed under the MIT license
* Inspired by http://stackoverflow.com/questions/3582344/draw-a-connection-line-in-raphaeljs
**/
@rygorous
rygorous / Stats.js
Created April 25, 2012 03:48
Half-space tri rasterizers in JS
// stats.js r9 - http://github.com/mrdoob/stats.js
var Stats=function(){var h,a,r=0,s=0,i=Date.now(),u=i,t=i,l=0,n=1E3,o=0,e,j,f,b=[[16,16,48],[0,255,255]],m=0,p=1E3,q=0,d,k,g,c=[[16,48,16],[0,255,0]];h=document.createElement("div");h.style.cursor="pointer";h.style.width="80px";h.style.opacity="0.9";h.style.zIndex="10001";h.addEventListener("mousedown",function(a){a.preventDefault();r=(r+1)%2;0==r?(e.style.display="block",d.style.display="none"):(e.style.display="none",d.style.display="block")},!1);e=document.createElement("div");e.style.textAlign=
"left";e.style.lineHeight="1.2em";e.style.backgroundColor="rgb("+Math.floor(b[0][0]/2)+","+Math.floor(b[0][1]/2)+","+Math.floor(b[0][2]/2)+")";e.style.padding="0 0 3px 3px";h.appendChild(e);j=document.createElement("div");j.style.fontFamily="Helvetica, Arial, sans-serif";j.style.fontSize="9px";j.style.color="rgb("+b[1][0]+","+b[1][1]+","+b[1][2]+")";j.style.fontWeight="bold";j.innerHTML="FPS";e.appendChild(j);f=document.createElement("div");f.style.position="relati
@jboner
jboner / latency.txt
Last active July 23, 2024 08:41
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@eirikbacker
eirikbacker / addEventListener-polyfill.js
Created June 3, 2012 19:30
addEventListener polyfill for IE6+
//addEventListener polyfill 1.0 / Eirik Backer / MIT Licence
(function(win, doc){
if(win.addEventListener)return; //No need to polyfill
function docHijack(p){var old = doc[p];doc[p] = function(v){return addListen(old(v))}}
function addEvent(on, fn, self){
return (self = this).attachEvent('on' + on, function(e){
var e = e || win.event;
e.preventDefault = e.preventDefault || function(){e.returnValue = false}
e.stopPropagation = e.stopPropagation || function(){e.cancelBubble = true}
@mridgers
mridgers / pdbdump.c
Created June 21, 2012 21:19
Small tool to list and query symbols in PDB files.
//------------------------------------------------------------------------------
// pdbdump.c - dump symbols from .pdb and executable files (public domain).
// - to compile; cl.exe /Ox /Zi pdbdump.c
// -
// - Martin Ridgers, pdbdump 'at' fireproofgravy.co.uk
//------------------------------------------------------------------------------
#include <stdio.h>
#include <Windows.h>
#include <DbgHelp.h>