[Scummvm-tracker] [ScummVM :: Bugs] #11024: SCI: Camelot: Pitch black aqueduct is drawn as pink

[ScummVM :: Bugs]

#11024: SCI: Camelot: Pitch black aqueduct is drawn as pink
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Reporter:  sluicebox  |      Owner:  (none)
    Type:  defect     |     Status:  new
Priority:  normal     |  Component:  Engine: SCI
Keywords:             |       Game:  Conquests of Camelot
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 When walking deep into the aqueduct, the screen is supposed to go black,
 as there is no light. ScummVM instead paints the screen pink.

 Attached is a save from the DOS version, walk left to reproduce.

 The kernel call that does this is: kDrawPic 112 2 1 4

 Pic 112 is supposed to be all black. It's drawn correctly at the start of
 the game by the speed test room, which calls kDrawPic 112 6 1 0.

 It's the fourth parameter that makes the difference. Using a debugger I
 changed the aqueduct call to use "0" and it drew black.

 I'm hoping that someone knowledgeable in this area has the time to take
 this on. I don't know anything about EGA palettes, so consider this a
 threat: left unaddressed I will mess this up. Tick tock!

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Ticket URL: <https://bugs.scummvm.org/ticket/11024>
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