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From: bruceb@amiga.UUCP (Bruce Barrett)
Newsgroups: net.micro.amiga
Subject: Re: Speed of output to RAW:
Message-ID: <433@amiga.amiga.UUCP>
Date: Mon, 23-Dec-85 18:47:26 EST
Article-I.D.: amiga.433
Posted: Mon Dec 23 18:47:26 1985
Date-Received: Wed, 25-Dec-85 03:27:55 EST
References: <241@cirl.UUCP>
Reply-To: bruceb@hunter.UUCP (Bruce Barrett)
Distribution: net
Organization: Commodore-Amiga Inc., 983 University Ave #D, Los Gatos CA 95030
Lines: 29

To Gary, and others--
>.....I assume ED draws to the screen directly. MicroEmacs opens a RAW: 
>window for output. 
?? Draws to the screen directly??  There are several ways to get to
the screen.  I belive the least effecient of these is "printf" (because
it goes through all the other layers too).  

>Also, the Amigaterm program posted recently writes characters
>directly to the window using graphics library calls. 
Most effecient routines are   ^^^^^^^^^^^^^^^^^^^^^^
>		  The advantage of the RAW: is that it offers built
>in ANSI sequences, like cursor motion, character styles, etc.

This advantage can also be achived by using the console device.
Sooo... the overhead brakes down something like:
Lowest:	 Graphics routines (no ESC sequences handled)
	 console.device
	 fh = Open (RAW:xx/yy/xxx/yyy/name); + Write (fh, buf, len);
	 fd = fopen (...
Highest: printf(.....

Use whatever fits your needs best.

Oh, for additional speed (at loss of colors) you might try:
	opening a custom screen 1 bit plane (2 colors) deep.
	I don't know but think this may save you 50% of the blit
for your text.

--BruceB