Color components and endianess

[tom nygen]

Thank you for making OpenSlide available. It is very useful for me to 
deal effectively with multiple scanner manufacturers. I've just tried 
some examples and have the following questions:

1. There seems to be only one pixel data format retrieved from the 
slides and that is pre-multiplied ARGB. Since most of the slide formats 
(known to me) have no alpha channel, and if they do, RGB components are 
already pre-mulitplied with the alpha channel, why can't we use RGB 
(24-bit) instead of ARGB (32-bit) format when we get a region from the 
slide? This would ease integration for many people having codes handling 
24-bit RGB format.

2. Since there could be an endian issue from one platform to the other, 
are there macros helping to make it easier to retrieve color components 
R, G, B from the 32-bit pixel data?

Thank you very much for any hints.
Tom N

 		 	   		  
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