From:	"LSC" <liausc AT pl DOT jaring DOT my>
Newsgroups:	comp.os.msdos.djgpp
Subject:	ALLEGRO:converting color from 24-bit to 18-bit
Date:	20 Jul 1998 05:14:03 GMT
Organization:	Unconfigured
Lines:	20
Message-ID:	<01bdb3a5$7d5a7d60$1d6e8ea1@a>
NNTP-Posting-Host:	j15.jrc25.jaring.my
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi people.

I'm trying to read a win95 bmp image file but fail because I cannot get the
original color pallete. I think the problem is because bmp file use 24-bit
color and allegro uses 18-bit color. So I need help on how to convert
24-bit color to 18-bit color.

Or maybe my code is wrong. Here's the code that I use to get the pallete, I
read the bmp file into file_buf(unsigned char).

	pallete color_pal;
	pp=55; cc=0;
	do {
		color_pal[cc].b=file_buf[pp];pp++;
		color_pal[cc].g=file_buf[pp];pp++;
		color_pal[cc].r=file_buf[pp];
		cc++; pp+=2;
	} while (cc<256);

Thnx for any help.

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