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JamesDunne / detect_flash.js
Created July 9, 2014 12:29
Flash plugin detection javascript code; works on IE8 and Chrome
// Returns true or false if flash installed or not. Tested with IE8 on Windows 7 and Chrome on Win7 and Mac.
(function() { var ie_flash; try { ie_flash = (window.ActiveXObject && (new ActiveXObject("ShockwaveFlash.ShockwaveFlash")) !== false) } catch(err) { ie_flash = false; } var _flash_installed = ((typeof navigator.plugins != "undefined" && typeof navigator.plugins["Shockwave Flash"] == "object") || ie_flash); return _flash_installed; })()
@JamesDunne
JamesDunne / i2c.c
Last active March 10, 2025 14:24
C library for reading/writing I2C slave device registers from Raspberry Pi 1 Model B
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <linux/i2c-dev.h>
// Terrible portability hack between arm-linux-gnueabihf-gcc on Mac OS X and native gcc on raspbian.
#ifndef I2C_M_RD
#include <linux/i2c.h>
#endif
@JamesDunne
JamesDunne / midi.c
Created February 20, 2017 16:29
C library for MIDI output on Raspberry Pi Model B using UART0 and breakout board with opto-isolators
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <asm/termios.h>
#include <unistd.h>
typedef unsigned char u8;
@JamesDunne
JamesDunne / fsw.c
Created February 20, 2017 16:35
C library for polling 16 active-low button states via SX1509 over I2C bus from Raspberry Pi Model B
typedef unsigned char u8;
typedef u8 byte;
#include "sx1509_registers.h"
// https://learn.sparkfun.com/tutorials/sx1509-io-expander-breakout-hookup-guide#sx1509-breakout-board-overview
// SX1509 breakout board exposes ADD1 and ADD0 jumpers for configuring I2C address.
// ADD1 = 0, ADD0 = 0
#define i2c_sx1509_btn_addr 0x3E
@JamesDunne
JamesDunne / init-refactor.c
Created February 2, 2020 01:53
int init()
{
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO) != 0) {
app.window = SDL_CreateWindow(GAME_TITLE, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, (int)SCREEN_WIDTH, (int)SCREEN_HEIGHT, 0);
if (app.window != NULL) {
app.renderer = SDL_CreateRenderer(app.window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
// app.renderer = SDL_CreateRenderer(app.window, -1, SDL_RENDERER_ACCELERATED);
if (app.renderer != NULL) {