here is a problem: I get no such error messages.
I have a MacMini 1.5 G4 and PowerBook G4 1667.
I have a pure CD installation.
I test my program on both computers.
Please give me more information about your system.
Is the Pack Kryalis installed?
Do you have something in MOSSYS: changed?



Quote:

Ok. I have prepared a special prog version. Link

This version did't start at all, if you have changed anything at MOSSYS:.
It needs a clean MorphOS 3.7 installation.

A reason to fail, too: Epub-Reader did't support files with DRM.

Quote:


Opening a non ebook file is causing memory errors.

I opened:

SYS:MorphOS/TP/wizardturbospool.wizard"


To see the issues launch "WipeOut" and "LogTool". The first one will slow down you system as it applies tons of additional memory operations. It will report any false use of free mem (wrong size, wrong pool, wrong address) and also will apply boundaries around each memory block allocated. Thisallows to track illegal memory accessing before and after a memory block. e.g. allocating 5 bytes and storing "hello\0" will cause an error as you broke the upper boundary.

Wipeout cannot be removed, it eats memory like hell and slows down your system, but (unless you have some application internal memory tracking) it is the only way to find these errors.

Just add some debug lines around free memory calls, so you can see which one is causing the issue. It is always a good idea to add stuff like __FILE__, __LINE__ and __func__ to any of your functions to have a point to investigate.

Geit

Quote:
Hi Carsten,

My signature tells you most about my Mac Mini system, I basically have a MOS v3.7 system, as it is installed from the CD, with the add-on Chrysalis pack installed - which is updated from version MOS 3.2, and the files kept updated via Grunch, and other files I add every so often, but none to the system files - APART from - the Printer Beta that Zukow is still working on, which I have had to install manually into the relevant directories.

That is my system, which works quite stably, though SCANdal does have some issues with the USB system that have not been fixed as yet, but I was not running or had run that program when I ran epub-reader, so that was certainly not a contributor to these errors.

I usually have some music playing, and so use Jukebox for that, which is system based, and possibly OWB 1.24 was also running in the background, but when I ran epub-reader that was the only foreground program that I was running when I got the error messages.

I think I also tried the program from a fresh restart but got the same errors, though I will do that again, and make sure.

The 'special' version you made available did load the Archie comic file, and the Woman in White - BUT with the same issues I have already mentioned, lots of text missing from each paragraph/page/chapter. The Marvel Comics 'book cover' did load, and the title in the heading information, but the actual comic itself, the pages/images, did not load at all, BUT I did not get any error messages - well not for the moment.

Maybe some of the issues that Geit has mentioned are applicable to solve/fix the errors that are making epub-reader unstable on systems other than yours, which you say is not exhibiting these issues.

I should also mention that, unlike many other programs I use on MorphOS, epub-reader, and some of your other programs, like Scriba, do not seem to use the 'Intuition' side of the OS as intuitively as other program do. What I mean is that when I open a file in a specific directory, and then want to open another file, epub-reader 'loses' where it last read a file, and reverts back to its root directory, so you have to go and locate the directory you want to access all over again, which seems counter-productive to making a program as efficient as possible, while utilising all the 'intelligent' features of MorphOS, much of which has been inherited from Amiga OS.

Thanks for your quick reply, and still wish you success in resolving these issues.

I find out, that you try to load epub's with DRM.
The version 0.31 crashes if you try that.
In lthe next version it's impossible to load other filese than epub (withouit DRM).

As far as I am aware I have not attempted to load any DRM files.

I downloaded The Woman in White by Wilkie Collins which is a free download book file (epub), and just the other ones already used by you with the program, as the ones linked/referred to by yourself - if they are DRM files then this was not mentioned by you, and maybe should have been.

Epub-Reader 0.32 Binary

New:

+ Loads only EPUB's without DRM
+ Display lists
+ Display the table of contents of EPUB Version 3.0 - files.

Now Epub-Reader checks all files if it is a real EPUB (Not a encrypted one)
Second it checks, if the file is corupt.
If all passed well, it loads the file.

With this version Epub-Reader starts to read the version 3.0 of this format.
In the version 3.0 the table of contents is displayed as seperate page.

In the next version Epub-Reader displays SVG's and support EPUB's with Sound.

OK, I downloaded the 0.32 version, and tried a couple of files, but I get the same results basically, with the same files. The Marvel Comics file loads the epub book cover, and some of the header information, but no images - then again no crashes at this point. So that's a good thing, IMHO.

The Archie comic loads OK, but the right page scrollbar indicates there is a lot more if you scroll downwards, but the scrollbar is behaving incorrectly, or not yet been fully implemented correctly. The header information is displayed, and the 'thumbnail' image of the bookcover displays as I believe you intend it to. So that file seems to be read sort of OK'ish.

The Woman in White, which is purely text based is loaded, and the header information is loaded correctly, and the thumbnail displays properly, but the text for the book is a bad as ever, with the majority of the text of the book not displayed at all, so there are sometimes just 2 words on a line, and that usually is the end few words from a paragraph, so for each line that would have been a paragraph of text, but only a few words from each paragraph are being displayed, so the book is unreadable, and makes no sense, as it is being displayed as about 3% of the book, so about 97% of the text is just not displayed.

I should also mention that the Chapter information (III) is cut-off at the top so the Chapter title is not being displayed properly. I tried to add a screengrab to hope to make things clearer, but the 'Select File' and followed by the 'Submit' option does not seem to want to load the file onto the site/thread, as I just get an error message from this site, which states:

error 1: /var/www/morph.zone/modules/newbb_plus/cache/attachments/ does not exist or is not writable.

EDIT: I have sent the screengrab to the author direct by email - hope this helps

[ Edited by NewSense 05.09.2014 - 22:24 ]

1. The Marvel comic is a corupt demo file.

This is the table of contents. It links to text/part1.xhtml.

Code:


The text/part1.xhtml shows nothing...

Code:



No Image at this page!




2. The Woman in White: I see, that there are missing chars.
I must check the source of the page renderer, if there are buffer overruns.

The other tihings i need more time to investigate.





Quote:



Quote:

This version fixes lot of bugs in the TOC - parser. ---> The table of contents on the left side is more readable.
Epub-Reader_0.32a


This gigantic EPUB is working now. Guinness World Records 2014

Screenshot: Guinness_world.jpg

The work on Text in colins women in white is not finished yet.

OK, I am glad you have explained more about the corrupt nature of the Marvel Comics file I was trying to display - I was never going to get that working then it seems.

I will also wait to hear back from you about the Wilkie Collins "epub" The Woman in White, once you have fixed the issues with displaying that book correctly.

Also, thanks for the update to version 0.32, I will give it a try later this evening.

New Binary: Epub-Reader 0.4

First: The textrenderer is fixed now, so the e-book "collins women in white" is now shown correctly.
Other news:

+ Support of Hyperlinks
+ Fix bug in textrenderer
+ Support of italic and bold styles (HTML 4.01)
+ Support of lists ( with numbers or placeholders)

See the screenshot: epubTutorial.jpg

[ Edited by pegasos-sigi2 13.09.2014 - 20:06 ]

Very well, Hyperlinks do work! There is even more text displayed (in Bartimaeus-trilogien_2_-_Golems_oeje). But since version 0.32a we have that strange scrolling behavior.
Glad to see your progress.
Thanx a lot

Quote:

Yes scrolling is on my "toDo" - list ;)

There are definitely some major improvements to this Alpha version 0.4 of your epub reader - the biggest step I have noticed, but there are some pieces of text being 'lost' in the process of displaying them.

The Woman in White seems to have most if not all of the text displayed, but the paragraph formatting seems to have been compromised, and there are 'blocks' - [] that seem to indicate that the LF/CR character code is being displayed instead of a character 'space', but this is more of a niggle than anything else - just something to 'tidy up'.

Images seem to display though some text is being shown over some of the images, making it difficult to read some of the text, which is another 'concern' - but the images are shown in both colour and black and white and do not seem to show any image corruption/break-up, so that is another good improvement. This seems to happen when you change the font size after the 'epub' has been already loaded, if I am not mistaken

I downloaded the Classic English novel Alice in Wonderland by Lewis Carroll, but from Chapter 2 - The Pool of Tears - the section of text from the last part of the chapter has got 'lost'

" cats: nasty, low, vulgar things! Don't let me hear the name again!'

`I won't indeed!' said Alice, in a great hurry to change the subject of conversation. `Are you--are you fond--of--of dogs?' The Mouse did not answer, so Alice went on eagerly: `There is such a nice little dog near our house I should like to show you! A little bright-eyed terrier, you know, with oh, such long curly brown hair! And it'll fetch things when you throw them, and it'll sit up and beg for its dinner, and all sorts of things--I can't remember half of them--and it belongs to a farmer, you know, and he says it's so useful, it's worth a hundred pounds! He says it kills all the rats and--oh dear!' cried Alice in a sorrowful tone, `I'm afraid I've offended it again!' For the Mouse was swimming away from her as hard as it could go, and making quite a commotion in the pool as it went.

So she called softly after it, `Mouse dear! Do come back again, and we won't talk about cats or dogs either, if you don't like them!' When the Mouse heard this, it turned round and swam slowly back to her: its face was quite pale (with passion, Alice thought), and it said in a low trembling voice, `Let us get to the shore, and then I'll tell you my history, and you'll understand why it is I hate cats and dogs.'

It was high time to go, for the pool was getting quite crowded with the birds and animals that had fallen into it: there were a Duck and a Dodo, a Lory and an Eaglet, and several other curious creatures. Alice led the way, and the whole party swam to the shore."

This problems is likely to happen with other 'epub books' but I have not had time to check more pages on this subject as yet - just noriced it with this book, so thought I would mention it now.

The scrolling issue that has also been mentioned by defender I also noticed, as it would be great to be able to use the page down/up keys to move within that field/area of text.

The TOP and BOTTOM of the page still seem to be cut short, as the top (at the top of the page) and bottom (at the bottom of the page) of the letters/characters are being 'chopped off' and you cannot scroll to the very last line of text in some instances, which needs fixing.

Great improvement over the last version, and looking forward to the next one.

The "blocks" are not LF/CR. They are UTF-8 Chars with the hexnumber "0xE28093"
They are unprintable by cairo. They are special versions of the char "-".
I must filter them.

Image/Text mixing between pages are known. Its a bug .
But ia have minimal time to develope.

The cuting of top/bottom on pages are known bug.
The scrolling (The reason) is on my toDo List.






Quote:

Quote: OK, as long as you know about the problem, and have a solution that is great.
Quote: OK, but you are doing really well so far, and you seem to have progressed really quickly so far - well done.
Quote: OK, I hope you manage to fix/squash that bug soon

@pegasos-sigi2: your reader could support PDF file with hyperlink ?

APDF don't support hyperlink of WArMUp document PDF :(

Quote:

VPDF is the most recent PDF Viewer in MorphOS. APDF is outdated.

Geit

sorry, i would like write :

VPDF don't support hyperlink of WArMUp document PDF :(

(APDF support them but have bug graphic)



[ Edité par Papiosaur 15.09.2014 - 14:01 ]

Quote:

The developer will not develope... LibPoppler (The engine of VPDF) is very huge.
Lot of fuctions of libPoppler are not used in VPDF.
Why? I don't know.

Quote:

File a feature request then.

Geit

Quote:

The developer will not develope... LibPoppler (The engine of VPDF) is very huge.
Lot of fuctions of libPoppler are not used in VPDF.
Why? I don't know.

Quote:

I learned this the hard way my self, recently. It is probably (never used it myself) not Cairo having problems.

The problem gets triggered when you try to convert the UTF-8 to lets say ISO-8859-1. This "-" (0xE28093) is not a minus. It is a dash to bind words ("en dash").

There is no proper char available in ISO-8859 table and you would corrupt this information during conversion. The right way would be to render the text as UTF-8 or turn Cairo into UTF rendering, so it takes the char and displays it using the ttf font without the need to use any charset conversion in between.

Geit



[ Edited by geit 15.09.2014 - 20:12 ]