On Tue, 2010-09-28 at 06:24 -0500, Pat Kane wrote: > On Tue, Sep 28, 2010 at 1:15 AM, Kai-Uwe Behrmann <[email protected]> wrote: > > Just a curious question, Who is using 6+6+6 encoding for what? > > Many handheld devices use TFT LCDs (Thin film transistor liquid crystal > display) > which have 6 bits per RGB. See <http://en.wikipedia.org/wiki/TFT_LCD>
Yeah, but the GPU typically smashes down from 24bpp to 18bpp in that case. However there are some ARM chips (PXA270 comes to mind, I'm sure there are others) that have x14r6g6b6 framebuffers. Which is a bit weird since it saves you exactly no memory bandwidth relative to x8r8g8b8, but hey it makes the chip cheaper since the GPU doesn't need as many wires for the pixel path. - ajax
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