Using Overlay on beagleboard

Recently I am trying to make 0xdroid use YUV Overlay in OMAP3 on beagleboard to play video. The purpose is utilizing the overlay in DSS system to accelerate by getting rid of the effort of the composition of different layers on software side and colorspace conversion to RGB.

For achieving this, we should get a libopencorehw module for opencore in Android. The implementation of libopencorehw can use the video-out driver, a V4l2 provider to interface DSS, like in TI's omapzoom tree. Unfortunately this way stuck me for a while, either there has problem in video-out driver or in TI's liboverlay.

After figuring out for a while, we met up another way for this, making libopencorehw use DSS ioctl directly. So we rewrite libopencorehw as simple as it looks and here is the new libopencorehw in 0xdroid. This way is more lightweight and easier to me. Welcome to try.

立燈入手

昨天去Ikea敗了一個立燈，就來寫一篇入手心得文做紀錄吧！
這款立燈其實是阿六介紹的，之前就有想買立燈，聽到六哥的介紹後，隔天就衝去逛Ikea 了！
買回來之後，帶回我在新店的住處，開始組裝！組裝是很輕而易舉的。
當我組裝完最後上面的燈泡後，打開開關，心裡一陣激昂。真相如下




我只先開了 25w 省電燈泡上面那一顆， 當場整個不一樣，夠power，而且柔合。
接著再加開小顆40w那顆，整個房間並沒有再亮很多的感覺，但是如果對著小顆那顆看的話，會有熱的感覺，看書覺得沒問題。這兩顆燈泡的搭配，整個光的顏色感覺非常好。整支燈管白色系，也具有現代感。配上牆壁的白色還不賴。燈泡的選擇似乎是影響使用感覺的關鍵，燈罩的顏色和材質也許也有關係。整體感覺，讚的啦!