When I switched jobs to ImageMovers Digital the movie in progress was A Christmas Carol. The trailer for what we’ve been working our butts off to produce is now available at Yahoo!¹

1. If you’re on Snow Leopard (10.6) you’ll need to install the optional Quicktime 7 player from the install disc in order to watch the HD version instead of the flash version↩

Apple has just released one of the coolest new technologies in OS X 10.6 as open source: libdispatch.

With libdispatch and blocks out in the wild I hope to see some of this tech coming my way for the day job. Woo hoo!

Bill Bumgarner is an engineer at Apple, Inc. He’s graciously provided a couple of primer documents for blocks, Apple’s new addition to the C-based languages (C, Objective-C, and C++). If you’re interested in blocks these are a great overview:

• Blocks Basics
• Blocks Tips & Tricks

Enjoy.

A good overview of Grand Central Dispatch and Blocks.

/dev/why!?!: Grand Central Dispatch

The simplistic explanation is that GCD is a combination of thread pooling and closures. The honest truth is that if thread pooling is a Motorola ROKR then GCD is an iPhone 3GS… while they are both phones and nominally do the same thing, no one would ever claim they are equal, or even i the same league. The guys at Apple who came up with it deserve a ton of credit.

Square Signals : KVO+Blocks: Block Callbacks for Cocoa Observers: “Andy
Matuschak.

Panther introduced Key-Value Observing, a Cocoa implementation of the observer pattern. It’s very useful, but the API kind of sucks.

To get observation notices, you have to override a lengthy selector (observeValueForKeyPath:ofObject:change:context:), provide a static context pointer, and essentially implement a big switch statement on the key path.

That’s unwieldy, but I think it also makes for unmaintainable code: the callbacks end up thrown in the same method, and they’re separated from the observer registration.

KVO+Blocks is an NSObject category I wrote which provides addObserverForKeyPath:task:, where the latter parameter is a block.

Programming with C Blocks on Apple Devices by Joachim Bengtsson

In Mac OS X 10.6, Apple introduced a syntax and runtime for using blocks (more commonly known as closures) in C and Objective-C. These were both later back-ported to Mac OS X 10.5 and the iPhone by Plausible Labs. However, there is very little documentation on blocks; even Apple’s documentation that come with 10.6 is very vague on what memory management rules apply. I hope that you can avoid all the trial-and-error that I went through with the help of this guide.

I have a day job. It’s a damn fine day job too. I work on movies and in the end the product is seen by millions of people all over the world. I’ve been doing this day job for over a dozen years now.

With every production I’ve been on there are crunch periods. If it’s not for you it’s for then you can bet someone else is working overtime. For the last couple of months I’ve been working Saturdays trying to drive to a deadline for the next feature, not even the one the rest of the company is trying to wrap up. The last couple of weeks have seen the workload and my hours increase a lot. Like near the 70 hour mark. I know. I know. First world problem. And don’t get me wrong, the overtime pay is coming in handy. I just get the feeling like it’s all work and then I just go home to sleep and barely see my wife.

Every so often I feel like I should be working for myself. I’m never going to get there if I don’t take steps now. I’m going to setup my own personal two-week sprints to see what I can get done while not at work and still keep my personal life in balance. I won’t be starting today or even this weekend, hours at work and a good friend’s wedding this weekend are going to chew up all my free time. If I can on Sunday I’ll map out the tasks I need to complete. Once I start I can’t turn back. To do so is to fail, and I don’t want to fail that easily.

I’ll post more as I can, but for now I’m keeping my trap shut.

iPhone Sudoku Grab: How does it all work? A very cool, detailed but not over your head, overview of how the iPhone app Sudoku Grab can use a picture of a Sudoku board to generate a playable game.

From Andrew Pouliot comes a great tip about using the Core Animation debug mode both on a touch device or in the simulator. This really helps get to the core of blending and where your app can stand to speed up.

“It’s an assault on the senses, a barrage of crazy imagery. Imagine that you went back in time to the late 1960s and found Terry Gilliam, fresh from doing his weird low-fi collage/animations for Monty Python. You proceeded to inject Gilliam with so many steroids his penis shrank to the size of a hair follicle, and you smushed a dozen tabs of LSD under his tongue. And then you gave him the GDP of a few sub-Saharan countries. Gilliam might have made a movie not unlike this one.”

(Via io9.)