From: Jack Klein <jackklein AT spamcop DOT net>
Newsgroups: alt.comp.lang.learn.c-c++,comp.os.msdos.djgpp
Subject: Re: Allegro Bitmap Colour Problem
Followup-To: comp.os.msdos.djgpp
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References: <3B23A6C4 DOT 24F8A38E AT home DOT com>
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Date: Sun, 10 Jun 2001 22:15:25 GMT
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To: djgpp AT delorie DOT com
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On Sun, 10 Jun 2001 17:02:53 GMT, PM <paulm14 AT home DOT com> wrote in
alt.comp.lang.learn.c-c++:

> Hey if anyone out there uses allegro maybe you can help me. I'll posted
> this on several other mailing lists incase I get different answers and
> such. Im very frustrated I cant fix this problem...
> 
> When I blit more than 1 bitmap on the screen, the colour is messed up
> big time on all bitmaps except the last bitmap that I opened. I'll give
> you an example of my code ( this is not actual code, but follows same
> structure )
> 
> BITMAP *bmp1,*bmp2, *tmp;
> PALLETE Pal;
> 
> bmp1=load_bitmap("blah blah", Pal);
> bmp2=laod_bitmap("blah blah2", Pal);
> tmp=create_bitmap(640, 480);
> 
> blit(bmp1, tmp, 0, 0, 0, 0, 640, 480); // image 1 goes to temp
> blit(bmp2, tmp, 0, 0, 0, 0, 100, 10); // image 2 goes to temp
> blit(tmp, screen, 0, 0, 0, 0, 640, 480); // temp is displayed
> 
> Now bmp1's colours are screwed up and bmp2's colours are fine..
> 
> I've tried many things to fix this. I tried making a separate pallete
> for each
> image, I tried it on another computer, I tried blitting them both to the
> 
> screen instead to the tmp bitmap, and many other things. I did not get
> any luck. Please guys I have to find out how to fix this. Any help would
> 
> be appretiated.
> 
> Thanks very much,

There are many people who have experience using Allegro, but
alt.comp.lang.learn.c-c++ is not the place to ask about it.  This
group is for discussing the standard C and C++ languages as defined by
their individual ANSI/ISO standards, and not platform and compiler
specific extensions like Allegro.

The place to ask about Allegro is the group dedicated to your compiler
and its libraries, news:comp.os.msdos.djgpp.  I have forwarded this to
that group and set followups to that group.  Please look for answers,
and ask future questions, about DJGPP and its particular libraries
there.

[posted & mailed]

-- 
Jack Klein
Home: http://JK-Technology.Com
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