2014/10/15 下午 10:15:07

iphone Programming Glossary: tuned

How to change thin image to fat image in iPhone SDK?

http://stackoverflow.com/questions/10186200/how-to-change-thin-image-to-fat-image-in-iphone-sdk

working for a client project that fell through and then another week or so part time to get the fat face layout fine tuned. Getting the whole thing into a salable product is still a work in progress. The algorithm I've come up with is fast enough..

Maximum speed from IOS/iPad/iPhone

http://stackoverflow.com/questions/11219240/maximum-speed-from-ios-ipad-iphone

that I mentioned above. It provides sin and cos functions that calculate 4 values in parallel. The algorithms are fine tuned in assembly and NEON so they give the maximum performance while using minimal battery. 4 The new armv7 implementation of..

Use CoreData or SQLite on iPhone? [closed]

http://stackoverflow.com/questions/1318467/use-coredata-or-sqlite-on-iphone

given how much overhead you'd think the framework has in most cases you can beat the performance of hand tuned SQLite using Core Data. On the iPhone it does a great job of batching fetches to minimize memory usage. The one downside..

What tool or technology does Apple use to create its documentation?

http://stackoverflow.com/questions/1930755/what-tool-or-technology-does-apple-use-to-create-its-documentation

PDF documentation... especially if you have the right fonts Palatino and Letter Gothic. Since Safari is obviously tuned for screen output not printer output it will do page breaks at inconvenient places... but it's definitely passable. Zero..

UIView backgroundColor disappears when UITableViewCell is selected

http://stackoverflow.com/questions/5222736/uiview-backgroundcolor-disappears-when-uitableviewcell-is-selected

How can I do fast image processing from the iPhone camera?

http://stackoverflow.com/questions/5248497/how-can-i-do-fast-image-processing-from-the-iphone-camera

data to the display. If possible I encourage you to look to OpenGL ES to do your actual processing because of how well tuned GPUs are for this kind of work. If you need to maintain OpenGL ES 1.1 compatibility your processing options are much more..

Most efficient way to draw part of an image in iOS

http://stackoverflow.com/questions/8035673/most-efficient-way-to-draw-part-of-an-image-in-ios

which means GPU acceleration . Anyway if you need extreme optimization for hundreds of animated sprites with finely tuned pixel shaders like in a game app you should use OpenGL directly because CALayer lacks many options for optimization at lower..

Core Data VS Sqlite or FMDB…?

http://stackoverflow.com/questions/8723923/core-data-vs-sqlite-or-fmdb

logic in Objective C. Yes C and Objective C are both good technologies. Has your database business logic really been tuned to work on a memory limited device I didn't think so. Core Data gets a bum rap on performance. It is really quite fast...

avassetwriter with greenscreen or chromakey

http://stackoverflow.com/questions/9756554/avassetwriter-with-greenscreen-or-chromakey

first input to the filter and the image or video to replace you target color with as the second input. I haven't yet tuned this particular filter for performance but you should easily be able to get 30 FPS processing for 640x480 frames on an older..