[Scummvm-devel] Non-hardcoded gameids

[David Given]

Max Horn wrote:
[...]
>> So if the overlay doesn't support alpha, how does the user see the game
>> canvas through it? There must be some way of preventing parts (or all)
>> of it from being drawn.
> 
> It's done by implementing the alpha blending manually. Not a big problem
> since things are drawn over a static background when the overlay is active.

Sorry, that's not quite what I meant --- if the overlay's colour format
doesn't have an alpha channel, how do you tell the compositor which bits
should be transparent or not? Or does the colour format *always* have an alpha
channel?

(And the GUI is all drawn on the overlay, right?)

-- 
+- David Given --McQ-+ "Gaping from its single obling socket was
|  dg at cowlark.com    | scintillating, many fauceted scarlet emerald..."
| (dg at tao-group.com) | --- Jim Theis, _The Eye of Argon_ (spelling
+- www.cowlark.com --+ original)


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