Message-ID: <386A6841.712EC74F@tiscalinet.it>
Date: Wed, 29 Dec 1999 21:00:02 +0100
From: Night Walker <night DOT walker AT tiscalinet DOT it>
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To: Dj Delorie <djgpp AT delorie DOT com>
Subject: Allegro: load_datafile is SLOW!!!
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Reply-To: djgpp AT delorie DOT com

This is a multi-part message in MIME format.
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I'm trying to load a 1.167.727 bytes datafile, containing 3 compiled
sprites at 24bpp.
The datafile isn't compressed, it contains properties for NAME and image
offsets.
Simply loading the datafile in a binary ram-buffer takes less than a
second on my
AMD-K5 100Mhz, 32Mb Ram.
I tried on another machine, an INTEL P90 with 32Mb Ram.
The Result is the same: ether under W95 and plain DOS it takes about 3
minutes to load it (however it is loaded perfectly).
Changing color depth or color conversion has no effect.
The attached code is compilable and (at least on my machine) shows off
the error.

Another question: I used _install_irq() to install my own keyboard
interrupt handler function, but after 16 keystrokes the PC Speaker
begins to beep every keystroke.
I think that this should be a full-keyboard-buffer warning.
How can I override/disable it?

Thanx for the help.

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#include <allegro.h>

int main()
{
 DATAFILE *obj;
 COMPILED_SPRITE *menu;

 allegro_init();
 install_timer();

 printf("\nSetting color depth...");
 set_color_depth(16);

 printf("\nLoading datafile...");
 set_color_conversion(COLORCONV_NONE);
 obj = load_datafile("menu.dat");
 if(!obj)
    {
	printf("\nCannot open DAT file");
	return 0;
    }
}
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