r-lyeh-archived

/*(utf8)
1€ Filter, template-compliant version
Jonathan Aceituno <join@oin.name>

25/04/14: fixed bug with last_time_ never updated on line 40

For details, see http://www.lifl.fr/~casiez/1euro
*/

#include <cmath>

r-lyeh-archived

// a few color space conversions in c++11, original code by mjijackson.com
// - rlyeh, public domain licensed.
#include <tuple>
#include <algorithm>
#include <stdint.h>
std::tuple<float,float,float> rgb2hsl( float r, float g, float b ) { // ranges: input[0..255], output[0..1]
    r /= 255, g /= 255, b /= 255;
    float max = std::max(std::max(r, g), b), min = std::min(std::min(r, g), b);
    float h, s, l = (max + min) / 2;
    if( max != min ) { 

r-lyeh-archived

/* Mike F */
#include <stdint.h>
void *memalign( int align, size_t size ) {
    void *mem = malloc( size + (align-1) + sizeof(void*) );
    if(!mem) return 0;
    
    char *amem = ((char*)mem) + sizeof(void*);
    amem += (align - ((uintptr_t)amem & (align - 1)) & (align-1));

    ((void**)amem)[-1] = mem;

r-lyeh-archived

/*
 Testing read file speed for the three read functions from
http://cpp.indi.frih.net/blog/2014/09/how-to-read-an-entire-file-into-memory-in-cpp/

compile with -std=c++11
*/

#include <type_traits>
#include <ostream>
#include <sstream>

r-lyeh-archived

#include <string>
#include <iostream>
#include <utility>

void internal_func(const std::string& s)
{
  std::cout << s << '\n';
}

template <typename ... T>

r-lyeh-archived

// another small variant class
// - rlyeh, public domain

#pragma once
#include <string>
#include <sstream>

template< typename T >
inline T as( const std::string &self ) {
    T t;

r-lyeh-archived

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main( int argc, const char **argv ) {
	if( argc >= 3 ) {
		float cycle = atof(argv[1]);
		float distance = atof(argv[2]);

		float excess = fmodf( distance, cycle );

r-lyeh-archived

// map<K,V> interpolator (requires keys and values with arithmetical operators)
// - rlyeh, public domain
#pragma once
#include <algorithm>
enum {
    // supported easings
    at_linear = 0,
    at_quadinout = 1,
    // default configuration (feel free to customize)
    at_interpolator = at_quadinout,

r-lyeh-archived

Git tree command

git config --global alias.tree "log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit --date=relative"

git tree
* c3aee36 - (HEAD -> master, tag: DAY01, origin/master, origin/HEAD) '' (2 minutes ago) <r-lyeh>
* 5c978e9 - Initial commit (4 minutes ago) <r-lyeh>

r-lyeh-archived

// [ref] https://www.niksula.hut.fi/~hkankaan/Homepages/changeable%20colors.html
// This is my example picture. Now I want to make that red ball to be brown, green to be yellow and blue to be white. Notice that this picture also has antialiased lines.

//slide(x,y) means an array slide(from color,to color)

//these three lines make channel 0 (red channel) brown
//(172 red, 108 green and 48 blue equals brown)
slide(0,0) = 172
slide(0,1) = 108
slide(0,2) = 48