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Software News : WarpJPEG.datatype 45.12 - now with AltiVec speed boost
Posted by Futaura on 2015/5/15 16:12:53 (1375 reads) News by the same author
Software News

A new faster version of WarpJPEG and associated WarpDTPrefs has been released, bringing AltiVec speed optimisations to AmigaOS 4.x and MorphOS users, making JPEG decoding at least 1.5x faster than before, along with several other improvements for WarpOS and AmigaOS 3.x also. You may be aware that I originally wrote the jpeg.datatype supplied with AmigaOS 4.x, but now WarpJPEG outperforms it by some considerable margin.


Resized Image

Full list of changes:

* Added AltiVec speed optimizations for the OS4 and MorphOS versions
making decoding speed of baseline images 1.5x faster on a G4 and
1.9x faster on a PA6T, with fancy upsampling off, on average.
With fancy upsampling on, the AltiVec speed gain is even greater -
1.9x faster on a G4 and 2.3x faster on a PA6T. These optimizations
can be toggled off/on using the new USE_ALTIVEC setting.

* Huffman decoder in PowerPC versions is now 5-10% faster.

* Reintegrated higher quality fancy upsampling smoothing feature from
IJG jpeglib v6b which had not been present since WarpJPEG 45.5 due
to its removal from IJG jpeglib v7 and higher.

* MorphOS and WarpOS versions recompiled with VBCC 0.9d.

* Added new set of benchmarks for OS4 (benchmark updates for other
platforms suspended until my A1200 motherboard has been repaired).


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Author Thread
tommysammy
Published: 2015/5/15 18:17  Updated: 2015/5/15 18:17
Quite a regular
Joined: 06/01/2009
From: Germany
Comments: 733
 WarpDT
Installed it on my X1000. It is much faster now. Thank you
Kicko
Published: 2015/5/15 21:52  Updated: 2015/5/15 21:52
Just can't stay away
Joined: 10/25/2007
From: Gothenburg / Sweden
Comments: 1175
 WarpDT
Thanks for the update :)
K-L
Published: 2015/5/16 8:16  Updated: 2015/5/16 8:16
Just can't stay away
Joined: 11/29/2006
From: Lyon, France
Comments: 1101
 Thanks
Thanks Oliver, I have been using WarpDT for many years now and still using them ! :-)
ChrisH
Published: 2015/5/16 9:37  Updated: 2015/5/16 9:37
Home away from home
Joined: 05/19/2007
From: England
Comments: 3553
 Re: WarpJPEG.datatype 45.12 - now with AltiVec speed boost
Can someone tell me the path of the WarpDT/WarpJPEG registration key? I can't remember if I registered it in the past, and wanted to check...
Futaura
Published: 2015/5/16 13:48  Updated: 2015/5/16 13:48
Just popping in
Joined: 12/23/2006
From: UK
Comments: 72
 Re: WarpJPEG.datatype 45.12 - now with AltiVec speed boost
I checked my database - no registration in your name, Chris.
Templario
Published: 2015/5/16 18:05  Updated: 2015/5/16 18:05
Quite a regular
Joined: 03/28/2010
From: None
Comments: 698
 Re: WarpJPEG.datatype 45.12 - now with AltiVec speed boost
Thanks for this new update Oliver!
Antique
Published: 2015/5/16 22:53  Updated: 2015/5/16 22:53
Home away from home
Joined: 11/30/2006
From: Norway
Comments: 2496
 Re: WarpJPEG.datatype 45.12 - now with AltiVec speed boost
How do you register this software?
K-L
Published: 2015/5/17 6:31  Updated: 2015/5/17 6:31
Just can't stay away
Joined: 11/29/2006
From: Lyon, France
Comments: 1101
 Re: WarpJPEG.datatype 45.12 - now with AltiVec speed boost
Antique
Published: 2015/5/24 8:34  Updated: 2015/5/24 8:34
Home away from home
Joined: 11/30/2006
From: Norway
Comments: 2496
 Re: WarpJPEG.datatype 45.12 - now with AltiVec speed boost
Thanks. :-)
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