Re: Threaded drawing - JPEG

2013-12-12 Thread Mike Abdullah
On 12 Dec 2013, at 11:55, Uli Kusterer wrote: > On 11 Dec 2013, at 18:53, Steve Sisak wrote: >> At 10:25 AM -0800 12/10/13, Seth Willits wrote: >>> On Dec 10, 2013, at 1:32 AM, Graham Cox wrote: But my situation is that I need to draw VECTOR objects up to 25,000% zoom with no pixeli

Re: Threaded drawing - JPEG

2013-12-12 Thread Uli Kusterer
On 11 Dec 2013, at 18:53, Steve Sisak wrote: > At 10:25 AM -0800 12/10/13, Seth Willits wrote: >> On Dec 10, 2013, at 1:32 AM, Graham Cox wrote: >> > But my situation is that I need to draw VECTOR objects up to 25,000% zoom >> > with no pixelization. >> >> You're given a CGContext to draw into;

Re: Threaded drawing - JPEG

2013-12-11 Thread Kevin Meaney
On 11 Dec 2013, at 22:43, Greg Parker wrote: > On Dec 11, 2013, at 9:53 AM, Steve Sisak wrote: >> Not to hijack the thread, but I'm just getting head into optimizing some >> code which displays live preview for a number of JPEG streams simultaneously. >> >> Most implementations I've tried resu

Re: Threaded drawing - JPEG

2013-12-11 Thread Greg Parker
On Dec 11, 2013, at 9:53 AM, Steve Sisak wrote: > Not to hijack the thread, but I'm just getting head into optimizing some code > which displays live preview for a number of JPEG streams simultaneously. > > Most implementations I've tried result in being CPU bound in JPEG code on the > main thr

Re: Threaded drawing - JPEG

2013-12-11 Thread Steve Sisak
At 10:25 AM -0800 12/10/13, Seth Willits wrote: On Dec 10, 2013, at 1:32 AM, Graham Cox wrote: > But my situation is that I need to draw VECTOR objects up to 25,000% zoom with no pixelization. You're given a CGContext to draw into; What's the difference? The tiled drawing is async, so if th