RE: [GD-Windows] XLATEOBJ_hGetColorTransform

[Andrew G. <And...@ho...>]

Have you tried using DDBs instead of DIBs? You should get better performance
that way because they should be stored in a device friendly way. Might be
worth doing a quick DDB v DIB performance comparison. I'd certainly be
interested in the result :)

Andrew Grant
Hothouse Creations 



> -----Original Message-----
> From: Brian Hook [mailto:bri...@py...]
> Sent: 09 January 2002 02:55
> To: bri...@py...; 'Gamedevlists-Windows@Lists. Sourceforge.
> Net'
> Subject: [GD-Windows] XLATEOBJ_hGetColorTransform
> 
> 
> It looks like about 20% of my time is spent in BitBlt() via 
> DIBsections.
> Of that time, this funky call to XLATEOBJ_hGetColorTransform is
> consuming like 98% of the time.  I'm guessing from the name that it's
> doing a color transform from my DIB to the screen, however both are in
> 16-bit.  So I'm figuring one of two things is going on:
> 
> - BitBlt() doesn't detect the unity situation with DIB sections
> 
> - even though the DIB is 16-bits and the framebuffer is 
> 16-bits, they're
> both "different" 16-bits.  If this is the case, is there a 
> way to query
> for the native format to allow for a unity blit?
> 
> And just think, we were wondering if there was even going to 
> be traffic
> on a Windows list that didn't talk about DX =)
> 
> Brian
> 
> 
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