Koreader running on Kobos (all of them, hopefully!) - Page 58

gong · 12-03-2013, 08:29 PM

I get pictures displayed wrong in build669, while 641 worked fine. Seems shades of gray are messed up or something. It shows in cbz, pdf, djvu... Am I missing something?

Ken Maltby · 12-03-2013, 11:06 PM

Quote:

Originally Posted by gong

I get pictures displayed wrong in build669, while 641 worked fine. Seems shades of gray are messed up or something. It shows in cbz, pdf, djvu... Am I missing something?

That sounds like an issue related to the rendering of the original Mu based PDF reader project. Perhaps it needs to be adjusted to work with the improved framebuffer capacity and handling. Good thing you are bringing it up, so it can get looked at.

My .jpg are not rendering properly now either. Those I thought would be rendered by the libjpeg in the cr3 engine routines.

Luck;
Ken

hawhill · 12-04-2013, 02:33 AM

I'll look into this. Ken is right, it's probably a regression with the new framebuffer (or rather, the underlying blitbuffer) code. Unfortunately, it might be a job that has to wait for the coming weekend, due to restricted spare time resources :-)

xping · 12-04-2013, 07:00 AM

Ok. Now it's ok for daily use and not only a developing project.

Modifying kobo_koreader.sh we get into nikel instead of rebooting. Great!

Only one more issue reading PDF with text reflow:

text pages start and end too near to upper and lower screen limit, so that we have some ugly cutted text lines. Sometimes, changing page won't show the last line of previous page that was cutted and not displayed properly.

Is there a way to avoid last text lines to be displayed so near to bottom border?

Thx

Markismus · 12-04-2013, 08:50 AM

Quote:

Originally Posted by xping

Ok. Now it's ok for daily use and not only a developing project.

Modifying kobo_koreader.sh we get into nikel instead of rebooting. Great!

Only one more issue reading PDF with text reflow:

text pages start and end too near to upper and lower screen limit, so that we have some ugly cutted text lines. Sometimes, changing page won't show the last line of previous page that was cutted and not displayed properly.

Is there a way to avoid last text lines to be displayed so near to bottom border?

Thx

I have a similar issue with the Kobo Aura. Set "Page Margin" to "large" via the bottom menu, third icon from the left.

xping · 12-04-2013, 11:47 AM

Quote:

Originally Posted by Markismus

I have a similar issue with the Kobo Aura. Set "Page Margin" to "large" via the bottom menu, third icon from the left.

Just made an attempt to use page margin parameter but doesn't seem to work. First and last line are "cutted".
I think that should be made something overlapping last lines of previous page with next (I saw something about "showing last lines of previous page" in gray instead of black in some post but don't remember about)

Markismus · 12-04-2013, 12:17 PM

Quote:

Originally Posted by xping

Just made an attempt to use page margin parameter but doesn't seem to work. First and last line are "cutted".
I think that should be made something overlapping last lines of previous page with next (I saw something about "showing last lines of previous page" in gray instead of black in some post but don't remember about)

In default.lua in the koreader directory there is a line that can be changed:

Code:

-- show dimmed area to indicate page overlap in "page" view mode,
-- default to false
DSHOWOVERLAP = false

Change to true.

Markismus · 12-04-2013, 12:39 PM

Quote:

Originally Posted by Ken Maltby

My .jpg are not rendering properly now either. Those I thought would be rendered by the libjpeg in the cr3 engine routines.

I didn't realize it, but my menu icons have become fuzzy lately. I blamed it on the Aura---everything that's new doesn't work as it is expected, but those are png-files aren't they?

Ken Maltby · 12-04-2013, 02:26 PM

Quote:

Originally Posted by Markismus

I didn't realize it, but my menu icons have become fuzzy lately. I blamed it on the Aura---everything that's new doesn't work as it is expected, but those are png-files aren't they?

If you mean the tiles/icons on the Kobo "Home" page, that would not be effected by any change in the Koreader build installed, as it is part of Nickel.

I just installed FW 3.1.0 last night, but the .jpg problem predates that. It is making it hard to turn Demo mode on, or more accurately Demo mode seems to be working differently. But the images I do see in Nickel look the same as always.

Luck;
Ken

hawhill · 12-04-2013, 03:36 PM

I think the icons in question are those in the top menu (and in fact, the bottom menu, too). Yes, they became a bit more "fuzzy". Maybe we need to redo them. The matter is: The color conversion became a bit more exact (!) with the rework of the blitbuffer abstraction (predating the framebuffer rework about one, two weeks, I think).

In fact, the icons just are this fuzzy - you can check with an image viewer on the PC :-)

Ken Maltby · 12-04-2013, 04:09 PM

Quote:

Originally Posted by hawhill

I think the icons in question are those in the top menu (and in fact, the bottom menu, too). Yes, they became a bit more "fuzzy". Maybe we need to redo them. The matter is: The color conversion became a bit more exact (!) with the rework of the blitbuffer abstraction (predating the framebuffer rework about one, two weeks, I think).

In fact, the icons just are this fuzzy - you can check with an image viewer on the PC :-)

Could you try some .jpg images, perhaps at different bit depths and mode (sRGB/grayscale) to start. Koreader used to do a much better job rendering my .jpg.

Luck;
Ken

hawhill · 12-04-2013, 04:38 PM

Of course, but this is another issue, that was my point. I won't get to work on it before the weekend, though.

Ken Maltby · 12-04-2013, 04:47 PM

Quote:

Originally Posted by hawhill

Of course, but this is another issue, that was my point. I won't get to work on it before the weekend, though.

Thanks, when and if you can work it in. I think it is great that there is someone willing and able to work on such issues, at all.

I think the book cover display is effected as well.

Luck;
Ken

gong · 12-04-2013, 05:18 PM

Thanks for looking into this, it's a major issue to me because koreader is the only way to reading those file formats. Will try to post some pics later...

edit: pics added, the left pic of each set is from build 669, other is 641. first set is djvu and second is cbz.

serdar0020 · 12-06-2013, 12:03 PM

I've just tried out the build 681, it seems slower than build 641, and I still don't find a way to exit koreader and return to nickel (all I manage is, by repeatedly pressing the home button I get the device to reboot - being a newbie I don't know how to modify the koreader.sh, see post #859)

12-04-2013, 07:00 AM	#859
xping Connoisseur Posts: 74 Karma: 765 Join Date: Nov 2013 Location: Italy Device: kobo aura hd, kobo mini, Sony prs-t3	PDF text reflow issue Ok. Now it's ok for daily use and not only a developing project. Modifying kobo_koreader.sh we get into nikel instead of rebooting. Great! Only one more issue reading PDF with text reflow: text pages start and end too near to upper and lower screen limit, so that we have some ugly cutted text lines. Sometimes, changing page won't show the last line of previous page that was cutted and not displayed properly. Is there a way to avoid last text lines to be displayed so near to bottom border? Thx

12-04-2013, 05:18 PM	#869
gong Enthusiast Posts: 47 Karma: 384 Join Date: Nov 2013 Device: Kobo Mini (f/w 3.4.1) + Aura (f/w 3.12.1)	Thanks for looking into this, it's a major issue to me because koreader is the only way to reading those file formats. Will try to post some pics later... edit: pics added, the left pic of each set is from build 669, other is 641. first set is djvu and second is cbz. Attached Thumbnails Last edited by gong; 12-04-2013 at 05:48 PM.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
KOReader: a document reader for PDF, DJVU, EPUB, FB2, HTML, ... (GPLv3)	hawhill	Kindle Developer's Corner	1289	04-07-2025 10:18 AM
Touch Using two Kobos	tkavan	Kobo Reader	4	06-23-2017 02:47 AM
2 kobos at once	tsarinaerika	Kobo Reader	14	06-03-2013 04:13 AM
Syncing between two Kobos	fx3000se	Kobo Reader	4	01-24-2013 02:10 PM
2 kobos 1 account	retired05	Kobo Reader	9	05-05-2012 08:25 AM

12-03-2013, 08:29 PM	#856
gong Enthusiast Posts: 47 Karma: 384 Join Date: Nov 2013 Device: Kobo Mini (f/w 3.4.1) + Aura (f/w 3.12.1)	I get pictures displayed wrong in build669, while 641 worked fine. Seems shades of gray are messed up or something. It shows in cbz, pdf, djvu... Am I missing something?

12-04-2013, 02:33 AM	#858
hawhill Wizard Posts: 1,379 Karma: 2155307 Join Date: Nov 2010 Location: Goettingen, Germany Device: Kindle Paperwhite, Kobo Mini	I'll look into this. Ken is right, it's probably a regression with the new framebuffer (or rather, the underlying blitbuffer) code. Unfortunately, it might be a job that has to wait for the coming weekend, due to restricted spare time resources :-)

12-04-2013, 03:36 PM	#865
hawhill Wizard Posts: 1,379 Karma: 2155307 Join Date: Nov 2010 Location: Goettingen, Germany Device: Kindle Paperwhite, Kobo Mini	I think the icons in question are those in the top menu (and in fact, the bottom menu, too). Yes, they became a bit more "fuzzy". Maybe we need to redo them. The matter is: The color conversion became a bit more exact (!) with the rework of the blitbuffer abstraction (predating the framebuffer rework about one, two weeks, I think). In fact, the icons just are this fuzzy - you can check with an image viewer on the PC :-)

12-04-2013, 04:38 PM	#867
hawhill Wizard Posts: 1,379 Karma: 2155307 Join Date: Nov 2010 Location: Goettingen, Germany Device: Kindle Paperwhite, Kobo Mini	Of course, but this is another issue, that was my point. I won't get to work on it before the weekend, though.

12-06-2013, 12:03 PM	#870
serdar0020 Zealot Posts: 118 Karma: 1110 Join Date: Nov 2013 Location: Germany Device: Kobo Clara 2E + Kobo Elipsa 2E	I've just tried out the build 681, it seems slower than build 641, and I still don't find a way to exit koreader and return to nickel (all I manage is, by repeatedly pressing the home button I get the device to reboot - being a newbie I don't know how to modify the koreader.sh, see post #859)

Advert

Advert