A blog about design, code and some other stuff

I’ve been delaying this post since I wrote a rant about the iPad. The delay is mainly because I never found time to create sample files or record screencasts showing the bugs so I decided to publish it without any working examples since I don’t think I will have enough time or patience to isolate the problems and document it anytime soon, so you will have to believe that what I’m saying “is true” and that the bugs exist… Think of it as a reference in case you have any of those issues and not as a definitive way of making those things work, some bugs are only present on older versions of iOS and may not be easy to replicate. I’m sure I will leave a lot of important stuff behind but at least I’ll try to cover some bugs and how I solved them. I will try to be brief.
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Before starting I have to say that I come from a design background and not so long ago I didn’t knew anything about bitwise operations, in fact I didn’t even knew that it existed, the content described on this post should be trivial for developers coming from a computer science background or low-level languages…

The intention of this post is not to teach what each bitwise operator does, in fact I’m going to explain how to use it without telling what it does since I think it may be easier to understand. The main reason for writing this post is because I had to explain this technique to a couple of different friends over the past years (or at least I tried…) and also because I believe that most front-end developers don’t know about it.

I think I’ve learned it around 3 years ago when I was planing to code a multiplayer RPG game with a couple of friends and was doing some research about ways to optimize data transfer, that was probably the first time I saw a real use for bitwise operations on high-level programing besides splitting color channels…
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