[Sugar-devel] Bug update on ticket no 2080 (Pulsing icon delayed by 5 seconds)
Team, Wish to share on the observations that I gathered on the basis of my discussion with Bernie last evening. It seems that the delay that occurs before the start of the pulsing icon is due to the zoom animation failing to render . We arrived at the idea of using a technique commonly applied in video games i.e. Frame Dropping, where we drop frames in order to maintain the frame rate. Using this idea, I have prepared a patch for SL 2080, and have tried it on my XO-1.5, where it seems to work better. I have tried to skip the animation to the last frame if the fps drops below the defaults fps of 20 , for a smooth animation to occur. Wish if the patch could be reviewed on an XO-1. If I am making mistakes or missing on any key aspect, please share feedback bluntly. Appreciate your support. Thank you. Regards, Anurag ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel
[Sugar-devel] Bug update on ticket no 2080 (Pulsing icon delayed by 5 seconds)
Daniel, Bernie and James, Appreciate your pointers. Indeed very helpful. Thank you. I tried to reduce the processing load just before the rendering of the first frame in this workflow, and looked for the processor intensive parts (intensive calculations or long recursive function calls) where any possible reduction in the processing may speed up the loading of the pulsing icon. I studied the files as pointed by Bernie (thank you for the explanation) and found the animation aspect to be constituted of only two frames - EASE_IN and EASE_OUT, which take place in an ordered repetitive manner. I was unable to arrive at a solution that was specific to the first frame with the documentation and explanations available. Wish if you could share pointers and strategy on how processor load could be lowered with emphasis on first frame. I suspect that it should lie in jarabe.view.launcher where the animation starts, but have been unable to arrive at an approach for it. Looking forward to your feedback. In reference to the questions on the patch submitted, I tried to reduce the delay by reducing the frame computation of the first five frames. Apologies that I did not consider the processing load that is encountered before the startup of the first frame of the animation of the pulsing icon. Appreciate your support and feedback. Regards Anurag Research Engineer SEETA ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel
Re: [Sugar-devel] Bug update on ticket no 2080 (Pulsing icon delayed by 5 seconds)
I am interested in reduce the activities startup time. Have you measured the startup time with the animation and without the animation? Regards Gonzalo On Sun, Oct 10, 2010 at 2:50 PM, Anurag Chowdhury anu...@seeta.in wrote: Daniel, Bernie and James, Appreciate your pointers. Indeed very helpful. Thank you. I tried to reduce the processing load just before the rendering of the first frame in this workflow, and looked for the processor intensive parts (intensive calculations or long recursive function calls) where any possible reduction in the processing may speed up the loading of the pulsing icon. I studied the files as pointed by Bernie (thank you for the explanation) and found the animation aspect to be constituted of only two frames - EASE_IN and EASE_OUT, which take place in an ordered repetitive manner. I was unable to arrive at a solution that was specific to the first frame with the documentation and explanations available. Wish if you could share pointers and strategy on how processor load could be lowered with emphasis on first frame. I suspect that it should lie in jarabe.view.launcher where the animation starts, but have been unable to arrive at an approach for it. Looking forward to your feedback. In reference to the questions on the patch submitted, I tried to reduce the delay by reducing the frame computation of the first five frames. Apologies that I did not consider the processing load that is encountered before the startup of the first frame of the animation of the pulsing icon. Appreciate your support and feedback. Regards Anurag Research Engineer SEETA ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel ___ Sugar-devel mailing list Sugar-devel@lists.sugarlabs.org http://lists.sugarlabs.org/listinfo/sugar-devel
