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Old 03-08-2012, 02:28 PM   #136
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Originally Posted by Germanc View Post
And also pdf rendering is a lot faster than before, but sadly it still is slower than in duokan.
In earlier versions of Duokan - when it was still called simply "Duokan" - PDF rendering was also done using muPDF. I'm still angry at these guys for not releasing their source. Legal stuff aside, they just owe it to the community. But I'm not here for ranting, instead I'm a bit curious: what version of Duokan are you testing against?
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Old 03-08-2012, 04:01 PM   #137
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Originally Posted by hawhill View Post
In earlier versions of Duokan - when it was still called simply "Duokan" - PDF rendering was also done using muPDF. I'm still angry at these guys for not releasing their source. Legal stuff aside, they just owe it to the community. But I'm not here for ranting, instead I'm a bit curious: what version of Duokan are you testing against?
Duokan 2012 R2.1, it was out a week ago; but pdf performance had been the same since R1.1. The difference is really big with image heavy files (mostly scanned physics/math books), from 4-5s in mupdf to less than 1s in duokan. I would love to know what they are using for rendering.
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Old 03-08-2012, 08:50 PM   #138
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Originally Posted by medwatt View Post
The djvu is working great. However I notice that at one time it was not kindle was not responsive to certain actions. Then I turned it off. When I switched it on again, the actions corresponding to the set of actions were then executed. Is there a way to move landscape directly ? Also when using pdf I don't seem to find a way to crop automatically to text region because some pdfs have a lot of white space at the margins.
Thanks once more, at least djvu is readable.
What do you mean by switch off? You mean turn kindle into sleep mode?

If the reader is busy rendering your book, then it will not be responsive to all the actions. Maybe your book has large images. I don't have this kindle of djvu file to test with. If you really want to fix this, you can send us the file.

Feature for moving to landscape directly is underdevelopment. We have working demo, but quite ugly ;P

If you want to auto crop margin in pdfs, try Shift+S or Shift+D. The first one means fit to content width while the latter one means fit to content height. This won't work for all pdfs, so sometime you might want to try manual cropping, which works quite well for me when reading djvus.
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Old 03-08-2012, 09:02 PM   #139
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Originally Posted by Germanc View Post
Duokan 2012 R2.1, it was out a week ago; but pdf performance had been the same since R1.1. The difference is really big with image heavy files (mostly scanned physics/math books), from 4-5s in mupdf to less than 1s in duokan. I would love to know what they are using for rendering.
1s to load the full page or just part of the page in zooming?
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Old 03-08-2012, 09:47 PM   #140
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Originally Posted by dave2008 View Post
1s to load the full page or just part of the page in zooming?
I disabled cropping and used fit page. It's 1s to load the full page in duokan and 6s with mupdf under the same settings. I'm testing with a 110mb pdf with only images (scanned physics book). Also duokan seems to be using some kind of caching because going back and forward over the same pages is really fast, but sometimes if I change pages forward to fast it takes a little more to draw.

Edit: FWIW, these big files I'm testing also render faster with the built in pdf viewer

Last edited by Germanc; 03-08-2012 at 09:52 PM.
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Old 03-09-2012, 08:43 AM   #141
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Yeah, we also have caching of rendered pages - however, it only really works in full-page mode right now, since it was not yet adapted properly to the current state of zooming, panning, etc. - this is something to improve.
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Old 03-10-2012, 01:05 PM   #142
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I like where the project is heading, and I think that next page caching is all that is lacking to be as fast as I need. While I prepare the poster with your names on it I promised before, I have a question: djvu TOC (outlines) is something planned ?
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Old 03-10-2012, 07:24 PM   #143
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Originally Posted by Germanc View Post
I like where the project is heading, and I think that next page caching is all that is lacking to be as fast as I need. While I prepare the poster with your names on it I promised before, I have a question: djvu TOC (outlines) is something planned ?
Well, I gave it a shot to add djvu outlines support. Here is the diff. I tested with severeal djvu files I have and it works well, but I wouldn't trust my code. I haven't code in C in ages (not to mention I have no idea how lua, lua bindings or djvu works)

EDIT: oh well, it doesn't compile with arm-...-gcc. It worked well with sdl.

EDIT2: Now it compiles and list bookmarks correctly, but fails to change the page -.-

EDIT3: Damn single-double quotes. Now it DOES work.
Attached Files
File Type: txt djvu_diff.c.txt (2.2 KB, 59 views)

Last edited by Germanc; 03-10-2012 at 07:49 PM.
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Old 03-10-2012, 08:06 PM   #144
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Quote:
Originally Posted by Germanc View Post
Well, I gave it a shot to add djvu outlines support. Here is the diff. I tested with severeal djvu files I have and it works well, but I wouldn't trust my code. I haven't code in C in ages (not to mention I have no idea how lua, lua bindings or djvu works)
Thanks! Issue for tracking your contribution at: https://github.com/hwhw/kindlepdfviewer/issues/61

Last edited by dpavlin; 03-10-2012 at 09:03 PM.
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Old 03-10-2012, 08:56 PM   #145
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Quote:
Originally Posted by Germanc View Post
Well, I gave it a shot to add djvu outlines support. Here is the diff. I tested with severeal djvu files I have and it works well, but I wouldn't trust my code. I haven't code in C in ages (not to mention I have no idea how lua, lua bindings or djvu works)

EDIT: oh well, it doesn't compile with arm-...-gcc. It worked well with sdl.

EDIT2: Now it compiles and list bookmarks correctly, but fails to change the page -.-

EDIT3: Damn single-double quotes. Now it DOES work.
OMG, I just went through the API last night and planned to work on it this morning, when woke up this morining, I saw your patch! Wonderful work Germanc!
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Old 03-10-2012, 09:03 PM   #146
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OMG, I just went through the API last night and planned to work on it this morning, when woke up this morining, I saw your patch! Wonderful work Germanc!
Thanks ! Since I use my kindle mostly to read technical books, this project comes pretty handy to me, so I'm really happy to be useful ! I just sent a pull request but I'm not sure I did it the right way (first time using git or github).
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Old 03-10-2012, 09:57 PM   #147
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Thanks ! Since I use my kindle mostly to read technical books, this project comes pretty handy to me, so I'm really happy to be useful ! I just sent a pull request but I'm not sure I did it the right way (first time using git or github).
Patch merged into main repo. We have TOC in djvu now
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Old 03-11-2012, 11:32 PM   #148
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I see jumpstack as some sort of bookmarks, but "jump to %## percent" is adding elements to the list. Is that supposed to be that way ? I "fixed" it for myself (https://github.com/Germanc/kindlepdf...e9b09a3181f33c) and added "Jump 10 pages at a time" while I wait for you guys to add proper "go to page", which is one of the few features I'm still missing.
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Old 03-12-2012, 02:04 AM   #149
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Originally Posted by Germanc View Post
I see jumpstack as some sort of bookmarks, but "jump to %## percent" is adding elements to the list. Is that supposed to be that way ? I "fixed" it for myself (https://github.com/Germanc/kindlepdf...e9b09a3181f33c) and added "Jump 10 pages at a time" while I wait for you guys to add proper "go to page", which is one of the few features I'm still missing.
Agree with you that jump to percent should not be added to jumpstack, since we have no idea what is in the page before the jump.

Feel to send a pull request if you feel your changes are ready to be merged to main repo

I will work on the goto popup now. After that, I guess the last thing I need is notes taking
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Old 03-12-2012, 03:11 AM   #150
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I have added the goto input box that can be invoked with G key. Feel free to get it from the main repo

I guess there is only one last thing we need to finish before the release: the new caching mechanism. Hawill is working on this, but he is a little busy in this weekends :-P

All the rest looks good for me so far, except the annoying memory usage in DXG when reading PDFs with large images. But I can live with it since I only have K3 ;P
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