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2014/10/15 ¤U¤È 10:14:16

iphone Programming Glossary: slowdown

fastest way to draw a screen buffer on the iphone

http://stackoverflow.com/questions/2395650/fastest-way-to-draw-a-screen-buffer-on-the-iphone

or resizing of the buffer in anyway it is properly sized and formatted for the texture so I am fairly certain the slowdown has nothing to do with the software renderer which is the good news it looks like if I can find a way to update the screen..

Core Animation CALayer mask animation performance

http://stackoverflow.com/questions/4520941/core-animation-calayer-mask-animation-performance

to drop down to OpenGL or something to get good performance UPDATE further reinforcing the idea that the mask is the slowdown my coworker suggested trying to rotate a CALayer with just the image as the contents so similar to my example above w o..

Is there a way to make drawRect work right NOW?

http://stackoverflow.com/questions/4739748/is-there-a-way-to-make-drawrect-work-right-now

in the future if you are actually unable to get this to work in production code because of the mystery progressive slowdown ... Felz and Void have each presented astounding solutions in the other specific question hope it helps. iphone ios cocoa..

Mysterious “progressive slowing” problem in run loop / drawRect

http://stackoverflow.com/questions/4786754/mysterious-progressive-slowing-problem-in-run-loop-drawrect

when additional operations are appended to the context. When this happens the CGLayer is rendered again. The slowdown is cause because the code maintains a single CGLayer offscreenPrefabCGL that has its context modified in every iteration..

PVR textures versus PNG in OpenGL ES

http://stackoverflow.com/questions/501956/pvr-textures-versus-png-in-opengl-es

pixel reordering is performed by drivers. Slower rendering because of limited memory bandwidth. Actual amount of slowdown depends on usage scenario. This problem is mostly noticeable with lower than 1x magnification ratio and no MIP mapping...

CADisplayLink OpenGL rendering breaks UIScrollView behaviour

http://stackoverflow.com/questions/5944050/cadisplaylink-opengl-rendering-breaks-uiscrollview-behaviour

Optimization of a GC language, any ideas?

http://stackoverflow.com/questions/6597847/optimization-of-a-gc-language-any-ideas