super fast thumbnails not so fast

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влад
Posts: 5
Joined: 28 Jul 2011 16:33

super fast thumbnails not so fast

Post by влад »

I check this product and I see that generation of thumbnails is not really fast, even if the "super fast thumbnails" is checked on! I do not mean about caching. I refer to initial generation.
I compare with XNView and other products and all is faster than XY.
So maybe this feature needs some optimize?

eil
Posts: 1870
Joined: 13 Jan 2011 19:44

Re: super fast thumbnails not so fast

Post by eil »

Xnview is a Pro image viewer -won't you agree that it would be strange if a file manager would be faster than it :wink:
Win 7 SP1 x64 100% 1366x768|1900x1080

влад
Posts: 5
Joined: 28 Jul 2011 16:33

Re: super fast thumbnails not so fast

Post by влад »

eil wrote:Xnview is a Pro image viewer -won't you agree that it would be strange if a file manager would be faster than it :wink:
No, I not agree. Because it is important feature of modern file manager also to display thumbnails quickly. The option is advertised as "super fast thumbnails"! But in fact it is super-slow compared to most other products (not only XNView).
So it is definitely something that is misleading the user... Programmist of XY should rework the feature...

admin
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Re: super fast thumbnails not so fast

Post by admin »

влад wrote:
eil wrote:Xnview is a Pro image viewer -won't you agree that it would be strange if a file manager would be faster than it :wink:
No, I not agree. Because it is important feature of modern file manager also to display thumbnails quickly. The option is advertised as "super fast thumbnails"! But in fact it is super-slow compared to most other products (not only XNView).
So it is definitely something that is misleading the user... Programmist of XY should rework the feature...
Creating thumbnails is done by Windows (GDI/GDI+), both super-fast or normal. Everybody out there uses the same functions. So there cannot be large speed differences. Only very specialized imaging software will code native thumbnailing code. I did this for TGA because they are not supported by GDI+.

влад
Posts: 5
Joined: 28 Jul 2011 16:33

Re: super fast thumbnails not so fast

Post by влад »

admin wrote: Creating thumbnails is done by Windows (GDI/GDI+), both super-fast or normal. Everybody out there uses the same functions. So there cannot be large speed differences. Only very specialized imaging software will code native thumbnailing code. I did this for TGA because they are not supported by GDI+.
OK, probably the GDI+ dont supports embedded thumbnails in jpeg. And therefore the listing appearas much faster in software which supports it.
Maybe you can think to add support for embedded jpeg thumbnails?

eil
Posts: 1870
Joined: 13 Jan 2011 19:44

Re: super fast thumbnails not so fast

Post by eil »

влад wrote:No, I not agree. Because it is important feature of modern file manager also to display thumbnails quickly. The option is advertised as "super fast thumbnails"! But in fact it is super-slow compared to most other products (not only XNView).
i'd want to take my part to say that all these "modern file managers" are so dumb and resource-consuming exactly because of such media/image "all-over previews" :evil: FM doesn't have to be "a wonderful image viewer" -there are many programs which a well done for that precisely. and if comparing, then lets compare Xnview as FM -i tried to use it so = almost horrible. 8)
Win 7 SP1 x64 100% 1366x768|1900x1080

zer0
Posts: 2676
Joined: 19 Jan 2009 20:11

Re: super fast thumbnails not so fast

Post by zer0 »

влад wrote:OK, probably the GDI+ dont supports embedded thumbnails in jpeg. And therefore the listing appearas much faster in software which supports it.
Maybe you can think to add support for embedded jpeg thumbnails?
GDI+ does support embedded thumbnails through GetThumbnailImage() method of Image class: http://msdn.microsoft.com/en-us/library ... 85%29.aspx
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