#6348 NORM Never A: OLPCGames SVGSprite colour rotation on 32bit

[Zarro Boogs per Child]

#6348: OLPCGames SVGSprite colour rotation on 32bit
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 Reporter:  mcfletch    |       Owner:  mcfletch          
     Type:  defect      |      Status:  new               
 Priority:  normal      |   Milestone:  Never Assigned    
Component:  olpc-games  |     Version:  Git as of bug date
 Keywords:              |    Verified:  0                 
 Blocking:              |   Blockedby:                    
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 Somehow the colours displayed via SVGSprite on 32-bit platforms (i.e.
 including the XO) are off by 16 bits, that is, instead of ARGB we're
 getting GBAR.  Works perfectly well on 64-bit machines.

 It almost looks like on 32-bit machines we're getting a different format
 for the "native" data-type inside the Cairo ImageSurface.  This used to
 work using get_rgba().  That API was removed in favour of the "native"
 format, but there doesn't seem to be a way to check that the format really
 is ARGB, the get_format() stuff returns 0, which is the ARGB constant, but
 the colours don't seem to be correct.

 This has pretty much made SVG sprites useless.  Need to fix.

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Ticket URL: <http://dev.laptop.org/ticket/6348>
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