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@rygorous
rygorous / gist:4172889
Created November 30, 2012 00:28
SSE/AVX matrix multiply
#include <immintrin.h>
#include <intrin.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
union Mat44 {
float m[4][4];
__m128 row[4];
};
@cpq
cpq / embed.c
Last active May 15, 2024 17:20
How to embed data files into C/C++ executable
// Copyright (c) Sergey Lyubka, 2013.
// All rights reserved.
// Released under the MIT license.
// This program is used to embed arbitrary data into a C binary. It takes
// a list of files as an input, and produces a .c data file that contains
// contents of all these files as collection of char arrays.
// Usage:
// 1. Compile this file:
// cc -o embed embed.c
@ialhashim
ialhashim / DBSCAN.hpp
Last active March 24, 2024 22:04
Portable Clustering Algorithms in C++ (DBSCAN) and (Mean-Shift) and (k-medoids)
#pragma once
// Code adapted from https://github.com/propanoid/DBSCAN
#include <vector>
#include <algorithm>
#include <omp.h>
// Any basic vector/matrix library should also work
#include <Eigen/Core>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <termios.h>
//this program works correctly but please remember to open the serial port as super user or change the permission
//of the port for normal by the following command "sudo chmod 666 /dev/ttyUSB*" the * in here represents the port number
//this command has to be called every time we plug the device in, because everytime the device is plugged in a new file
@royshil
royshil / SimpleVideoStabilizer.cpp
Last active May 8, 2024 05:49
A simple video stabilizer in OpenCV, based on goodFeaturesToTrack, calcOpticalFlowPyrLK and estimateRigidTransform.
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/features2d/features2d.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/video/video.hpp>
#include <iostream>
using namespace cv;
using namespace std;
@enghqii
enghqii / main.cpp
Created May 28, 2015 08:20
Win32 Console Double Buffering
#include <windows.h>
#include <stdio.h>
#define WIDTH 120
#define HEIGHT 30
float playerX = 0;
float playerY = 0;
float dx = 0,dy = 0;
@ocornut
ocornut / imgui_node_graph_test.cpp
Last active April 23, 2024 19:02
Node graph editor basic demo for ImGui
// Creating a node graph editor for Dear ImGui
// Quick sample, not production code!
// This is quick demo I crafted in a few hours in 2015 showcasing how to use Dear ImGui to create custom stuff,
// which ended up feeding a thread full of better experiments.
// See https://github.com/ocornut/imgui/issues/306 for details
// Fast forward to 2023, see e.g. https://github.com/ocornut/imgui/wiki/Useful-Extensions#node-editors
// Changelog
// - v0.05 (2023-03): fixed for renamed api: AddBezierCurve()->AddBezierCubic().
@ahmedlhanafy
ahmedlhanafy / android.md
Last active January 31, 2024 10:46 — forked from geekygecko/android.md
Android Cheat Sheet

Android Cheat Sheet

Developer tips

Ripple Effect

android:clickable="true"
android:background="?attr/selectableItemBackground"

or

@mrmlnc
mrmlnc / electron-api.md
Last active August 25, 2023 07:23
Electron API

Базовые возможности

process — это объект, позволяющий получить информацию о типе запущенного процесса (рендеринг или основной процесс), версию Chrome и Electron, а также путь до выполняемого js-файла.

Пользовательские элементы DOM:

Объект File — это абстракция над нативным File, передающая стандартному HTML5 file API путь к физическому расположению файла в файловой системе пользователя.

@phg1024
phg1024 / eigen_matlab.cpp
Created October 28, 2015 00:12
Eigen-MATLAB reference
// A simple quickref for Eigen. Add anything that's missing.
// Main author: Keir Mierle
#include <Eigen/Dense>
Matrix<double, 3, 3> A; // Fixed rows and cols. Same as Matrix3d.
Matrix<double, 3, Dynamic> B; // Fixed rows, dynamic cols.
Matrix<double, Dynamic, Dynamic> C; // Full dynamic. Same as MatrixXd.
Matrix<double, 3, 3, RowMajor> E; // Row major; default is column-major.
Matrix3f P, Q, R; // 3x3 float matrix.