nanogui: blitting with more than 8bpp
Subject:
Re: blitting with more than 8bpp
From:
Alistair Riddoch ####@####.####
Date:
7 Jan 2000 17:51:24 -0000
Message-Id: <20000107185756.A16304@impulse.ecs.soton.ac.uk>
On Fri, Jan 07, 2000 at 10:38:17AM -0700, Greg Haerr wrote:
> :I missed the fact that dst and
> : src are pointers to shorts. So, my original patch was wrong. But, the
> : initialization of these two pointers do not appear to consider the bpp
> : correctly. Here's a patch that seems to work.
> :
> : --- fblin16.c Fri Jan 7 05:59:41 2000
> : +++ fblin16.c.orig Fri Jan 7 05:56:06 2000
> : @@ -133,8 +133,8 @@
> : assert (srcy+h <= srcpsd->yres);
> :
> : DRAWON;
> : - dst = dstpsd->addr + (dstx + dsty * dlinelen)*2;
> : - src = srcpsd->addr + (srcx + srcy * slinelen)*2;
> : + dst = dstpsd->addr + dstx + dsty * dlinelen;
> : + src = srcpsd->addr + srcx + srcy * slinelen;
> : while(--h >= 0) {
>
> Kyle - I'm a little confused here. My source already matches
> your patch "+'" lines. Your original source doesn't match.
> Perhaps you should check your fblin16.c with the most recent
> sources (any 0.87pre2 or pre3)
It looks as though the patch was generated backwards from the header
(fblin16.c -> fblin16.c.orig).
The lines with + are the original, the - lines are the updated ones.
Al
