Re: [patch] gdk-pixbuf optimizations
- From: Daniel Egger <egger suse de>
- To: Sven Neumann <sven gimp org>
- Cc: gtk-devel-list gnome org
- Subject: Re: [patch] gdk-pixbuf optimizations
- Date: 08 Aug 2001 19:51:02 +0200
Am 08 Aug 2001 11:34:33 +0200 schrieb Sven Neumann:
> + memcpy (dest, p, 3);
Don't know why you would want to use memcpy for 3 bytes.
Doing dest[0] = p[0], dest[1] = p[1], dest[2] = p[2] will
result in much better code. In you're unlucky the memcpy
will result in an function call which is a severe overhead
compared to three byte copies (at least on PPC this is the case)
and if the compiler would generate optimal code then it'd be still
the same as the 3 byte copies (which will probaly be optimized anyway).
Servus,
Daniel
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