Thread: Screen Colours / Color Depth: 16 million or 65K?
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Patola is offline Patola
2010-03-24 , 07:23
Posts: 267 | Thanked: 183 times | Joined on Jan 2010 @ Campinas, SP, Brazil
#36
On every N900 brochure and advertisement I find, it shows the N900 as a device with 16 million colors (16777216, to be exact, that is 2^24, which means it should have 24 bit depth or 32 bit depth - 24 bits plus 8 from aplha channel).

However, I just compiled installed the x11-utils package from the tools repository and ran xdpyinfo, and got this:

Code:
[user@n900 user]% xdpyinfo | grep -i depth
    depth 1, bits_per_pixel 1, scanline_pad 32
    depth 4, bits_per_pixel 8, scanline_pad 32
    depth 8, bits_per_pixel 8, scanline_pad 32
    depth 15, bits_per_pixel 16, scanline_pad 32
    depth 16, bits_per_pixel 16, scanline_pad 32
    depth 24, bits_per_pixel 32, scanline_pad 32
    depth 32, bits_per_pixel 32, scanline_pad 32
  depths (7):    16, 1, 4, 8, 15, 24, 32
  depth of root window:    16 planes
    depth:    16 planes
    depth:    32 planes
[user@n900 user]%
Isn't that wrong, 16 planes? That would mean 65536 colors! Or are the brochures referring to the "maximum" capacity of the device (after all it shows 7 different possible color depths)? Can I change its depth somehow? Do games like Bounce Evolution do this?