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Is black same in 555 and 565?

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Hi, Just wondered, has pure black rgb(0,0,0) same value in 5-5-5 modes as in 5-6-5 modes? //Rickard

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well, actually RGB in 555 is:
00000 00000 00000
and in 565:
00000 000000 00000

don''t call me picky

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I''ve never programmed for any hardware that uses 5-5-5, but theoretically couldn''t that extra bit be an alpha value? In that case 00000-00000-00000-1 would be black wheras all zeros would be transparent, right? So maybe they''re not the same.
I''m not the kind to jump for the obvious answer.

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