gregcotten’s gists

sandymc / CreateTransform.m

Last active September 3, 2020 23:25

This code snippet shows how to convert an image buffer between color spaces (e.g., transform from ProPhoto to sRGB or whatever) using Apple's new (and entirely undocumented) ColorSyncTransformConvert function. Firstly, a transform is created, then that transform is used to convert an image buffer.

	const void *keys[] = {kColorSyncProfile, kColorSyncRenderingIntent, kColorSyncTransformTag};

	const void *srcVals[] = {[srcProfile ref], kColorSyncRenderingIntentUseProfileHeader, kColorSyncTransformDeviceToPCS};
	const void *dstVals[] = {[destProfile ref], kColorSyncRenderingIntentUseProfileHeader, kColorSyncTransformPCSToDevice};

	CFDictionaryRef srcDict = CFDictionaryCreate (
	NULL,
	(const void **)keys,
	(const void **)srcVals,
	3,

zaphoyd / basic_client.cpp

Last active June 4, 2023 08:39

An example of a basic WebSocket++ client that sends a message, waits for a response, then closes the connection

	#include <websocketpp/config/asio_no_tls_client.hpp>

	#include <websocketpp/client.hpp>

	#include <iostream>

	typedef websocketpp::client<websocketpp::config::asio_client> client;

	using websocketpp::lib::placeholders::_1;
	using websocketpp::lib::placeholders::_2;

fabiofl / gist:5873100

Created June 27, 2013 00:41

Clear Mac OS X's icon cache.

sudo find /private/var/folders/ -name com.apple.dock.iconcache -exec rm {} \;

steipete / PSPDFUIKitMainThreadGuard.m

Last active May 27, 2024 12:11

This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…

	// Taken from the commercial iOS PDF framework http://pspdfkit.com.
	// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
	// Licensed under MIT (http://opensource.org/licenses/MIT)
	//
	// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.

	// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.

	#import <objc/runtime.h>
	#import <objc/message.h>

kristopherjohnson / afnetworking_downloadFile_example.m

Created March 28, 2013 11:44

Example of using AFNetworking to download a file (copied from https://github.com/AFNetworking/AFNetworking/issues/589)

	- (IBAction)downloadFile:(id)sender {

	NSURL *url = [NSURL URLWithString:@"http://www.hulkshare.com/dl/qw30o7x373a8/stan_courtois_&_felly_vs_cutting_crew_-_die_in_your_arms_(x-centrik_mix)_%5B_www.themusix.net_%5D.mp3"];
	NSURLRequest *request = [NSURLRequest requestWithURL:url];

	AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

	NSString *fullPath = [NSTemporaryDirectory() stringByAppendingPathComponent:[url lastPathComponent]];

	[operation setOutputStream:[NSOutputStream outputStreamToFileAtPath:fullPath append:NO]];

dbr / iridas_look_to_csp.py

Created March 30, 2012 05:18

IRIDAS .look to .csp LUT

	"""From the seemingly undocumented IRIDAS .look format to .csp
	"""


	import re
	import os
	import sys
	import struct
	import binascii
	import xml.etree.ElementTree as ET

PaulSolt / ImageHelper.h

Created December 13, 2010 15:54

A simple UIImage to RGBA8 conversion function

	/*
	* The MIT License
	*
	* Copyright (c) 2011 Paul Solt, [email protected]
	*
	* https://github.com/PaulSolt/UIImage-Conversion/blob/master/MITLicense.txt
	*
	*/

	#import <Foundation/Foundation.h>

Greg Cotten gregcotten