JPG screenshot support

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Expand view Topic review: JPG screenshot support

by DoomRater » Tue Dec 06, 2005 4:25 pm

Okay I posted to this topic and my comment was somehow deleted.

EDIT: Will people stop this already?

by Bio Hazard » Tue Dec 06, 2005 6:34 am

Hirogen2 wrote:GIF does not support 32-bit. PNG does. 'Nuf said.
But it doesn't matter if the picture is never over 8-bit :p

by Kirby » Mon Dec 05, 2005 8:10 pm

Then its a good thing ZDoom ain't 32-bit now is it?

by Hirogen2 » Mon Dec 05, 2005 4:55 pm

GIF does not support 32-bit. PNG does. 'Nuff said.

by Enjay » Thu Nov 24, 2005 9:36 am

In case it came across as me arguing for JPG screenshot support: I think that would be a waste of time and effort. If I want to have my screenshots in JPG format for posting somewhere, it only takes me a few seconds to convert them. A lossy format for stuff that is saved to you HD (where space and speed is not an issue) seems silly and pointless. Having a good quality original shot seems for better even if I am going to convert it to a JPG for some other purpose.

by Graf Zahl » Thu Nov 24, 2005 9:30 am

Sigh...

Is this thread still alive...? :?

by Enjay » Thu Nov 24, 2005 9:30 am

Killo Zapit wrote:JPEGs suck and are evil. Don't use them. Ever. If you use JPEG your penis will fall off. Use PNG for images on the web. Or gif if you REALLY need to. Yeah, maybe give ZDoom the ability to save gifs. When the dumb patent expires. I used dial up all the time, and I never had a problem uploading PNGs. So there.
OK, same picture made by PSP - one PNG one JPG

JPG = 32.5KB
PNG = 222KB

Obviously quality is an issue, but quite often it doesn't matter. However, in many cases - especially for "images on the web" - a graphic being almost 7 times bigger than the other option is important.

In fact, reducing the picture to a paletised one and saving as a PNG and a GIF still left the JPG as the smallest file.

PNG = 46.8KB
GIF = 47.1KB

by Doomguy0505 » Thu Nov 24, 2005 3:21 am

Killo Zapit wrote:JPEGs suck and are evil. Don't use them. Ever. If you use JPEG your penis will fall off. Use PNG for images on the web. Or gif if you REALLY need to. Yeah, maybe give ZDoom the ability to save gifs. When the dumb patent expires. I used dial up all the time, and I never had a problem uploading PNGs. So there.
*Looks
It's still there.

by DoomRater » Tue Nov 22, 2005 9:50 pm

GIF still has animation, but that's it.

And yay for patents expiring. This should mean more freeware GIF editors.

by Graf Zahl » Tue Nov 22, 2005 2:52 am

Killo Zapit wrote: When the dumb patent expires.

The patent has expired 2 years ago. And today there's really no need to use Gif anymore. PNG offers the same kind of compression (or better) and is more flexible.

by Bio Hazard » Tue Nov 22, 2005 1:51 am

From what I can tell, ZDoom just slaps the doom palette on the image and saves it, even though all the colors in the palette aren't being used.
Could ZDoom check and see what colors are being used and crop unused colors out of the palette? That always seems to bring down sizes for me.

by Chris » Tue Nov 22, 2005 1:40 am

The only advantage GIF has over PNG is animation support (which is what MNG is for).

As for PNG vs. JPG, PNG can use a lossy compression scheme just like JPG and any compliant decoder will still read it fine. Thing is, you need to convert 8-bit images (such as ZDoom screenshots) to true-color for lossy compression to work (so you'd effectively triple the source image size before compressing).

by wildweasel » Tue Nov 22, 2005 1:38 am

KingofFlames wrote:because it takes forever to upload screenshots to post them(with dial-up) :(
You could always re-save them in Irfanview with a higher compression rating.

by Killo Zapit » Tue Nov 22, 2005 1:04 am

JPEGs suck and are evil. Don't use them. Ever. If you use JPEG your penis will fall off. Use PNG for images on the web. Or gif if you REALLY need to. Yeah, maybe give ZDoom the ability to save gifs. When the dumb patent expires. I used dial up all the time, and I never had a problem uploading PNGs. So there.

by Siggi » Mon Nov 21, 2005 9:12 pm

Um, I don't have a problem with it...

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