Register Guidelines E-Books Search Today's Posts Mark Forums Read

Go Back   MobileRead Forums > E-Book Readers > Amazon Kindle > Kindle Developer's Corner

Notices

Reply
 
Thread Tools Search this Thread
Old 10-02-2012, 12:12 AM   #1
ixtab
(offline)
ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.
 
ixtab's Avatar
 
Posts: 2,903
Karma: 6677559
Join Date: Dec 2011
Device: K3, K4, K5, KPW, KPW2
Kindle Paperwhite = 5.2.0

So, I just learned this from here:

- Paperwhite serial numbers: B024 (Wifi), B01B (Wifi+3G)
- Firmware version: Kindle 5.2.0 (1729740065)

This is pretty much what I expected. Although there seem to be some serious UI changes wrt 5.1.0, it's still just an evolution of the "old" K5 firmware, not a complete revolution.

This also means that hopefully, many of the previous hacks & patches for the Kindle Touch can be ported (and hopefully with relatively little effort) to the PW. And maybe we don't even have to reinvent the wheel for the jailbreak either? We'll see.

Note: I don't have a PW yet. I expect mine to arrive here in about 4-6 weeks.
ixtab is offline   Reply With Quote
Old 10-02-2012, 01:41 AM   #2
techiemonkey
Tech Geek Forever
techiemonkey ought to be getting tired of karma fortunes by now.techiemonkey ought to be getting tired of karma fortunes by now.techiemonkey ought to be getting tired of karma fortunes by now.techiemonkey ought to be getting tired of karma fortunes by now.techiemonkey ought to be getting tired of karma fortunes by now.techiemonkey ought to be getting tired of karma fortunes by now.techiemonkey ought to be getting tired of karma fortunes by now.techiemonkey ought to be getting tired of karma fortunes by now.techiemonkey ought to be getting tired of karma fortunes by now.techiemonkey ought to be getting tired of karma fortunes by now.techiemonkey ought to be getting tired of karma fortunes by now.
 
techiemonkey's Avatar
 
Posts: 230
Karma: 568824
Join Date: Jun 2012
Location: USA
Device: Kindle Touch hacked
Does this mean that kindle touch development will stop?
techiemonkey is offline   Reply With Quote
Old 10-02-2012, 02:45 AM   #3
ixtab
(offline)
ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.
 
ixtab's Avatar
 
Posts: 2,903
Karma: 6677559
Join Date: Dec 2011
Device: K3, K4, K5, KPW, KPW2
Quote:
Originally Posted by techiemonkey View Post
Does this mean that kindle touch development will stop?
What makes you think that? Has development for the K3 stopped because there are K4 and K5 models out there?

I personally will certainly shift focus in the beginning, because I want to get my own stuff running on the PW. But ideally, things will work both on the K5 and the PW. Depending on how different the firmwares really are, this may result in more or less effort.

Maybe (speculation!) it's even possible to run the 5.2.0 firmware on the K5 - or maybe not. We'll see.
ixtab is offline   Reply With Quote
Old 10-02-2012, 02:53 AM   #4
geekmaster
Всё гениальное просто.
geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.
 
geekmaster's Avatar
 
Posts: 5,070
Karma: 6789001
Join Date: Nov 2011
Location: Щедрость не имеет пределов.
Device: *.*
Quote:
Originally Posted by techiemonkey View Post
Does this mean that kindle touch development will stop?
I try to make my stuff run on all kindles I have, including DX/DXG/K3/K4/K5, and soon Paperwhite. I even plan to make it work on my Nook Simple Touch (some day), without recompiling the executable. At least that is what I want. That is why I like static builds.

EDIT: Considering the fact that I have a bunch of K5 demos arriving soon, I do not plan to stop developing for the K5. In fact, I am working on adding dithering code to the Doom video game (prboom) that twobob ported to the K5, with a goal to make it work on all the eink kindles. But when the Paperwhite comes, we REALLY need to learn how to get it into USB Downloader mode, because the new firmware will undoubtedly lead to Paperwhites gathering dust after they get bricked...

Last edited by geekmaster; 10-02-2012 at 03:19 AM.
geekmaster is offline   Reply With Quote
Old 10-02-2012, 06:40 AM   #5
bhaak
Groupie
bhaak can program the VCR without an owner's manual.bhaak can program the VCR without an owner's manual.bhaak can program the VCR without an owner's manual.bhaak can program the VCR without an owner's manual.bhaak can program the VCR without an owner's manual.bhaak can program the VCR without an owner's manual.bhaak can program the VCR without an owner's manual.bhaak can program the VCR without an owner's manual.bhaak can program the VCR without an owner's manual.bhaak can program the VCR without an owner's manual.bhaak can program the VCR without an owner's manual.
 
bhaak's Avatar
 
Posts: 162
Karma: 164959
Join Date: Dec 2011
Device: Palm IIIx, (iPhone|Kindle) Touch
Quote:
Originally Posted by ixtab View Post
What makes you think that? Has development for the K3 stopped because there are K4 and K5 models out there?
No, but the KT has only been produced for a year and outside the US even been available officially only for ~6 months. There have probably been relatively few units sold compared to K3 models. New US developers won't come to the KT and soon the KP will be available to the rest of the world.

Quote:
Originally Posted by ixtab View Post
I personally will certainly shift focus in the beginning, because I want to get my own stuff running on the PW. But ideally, things will work both on the K5 and the PW. Depending on how different the firmwares really are, this may result in more or less effort.
Yes, that's exactly the point. How much effort will it be to support both devices? We just don't know yet for sure.

For native applications, it's quite likely that there will be no issues on the level of the CPU. Compiled code per se will likely run on both KT and the KP. But what about dynamically linked libraries? This will depend on how similar their firmware is. Then there are different screen resolutions which might or might not screw up your layout.

I think it would be surprising if wafs and kindlets wouldn't work on both devices. After all, browsers apps and Java apps easily work cross-platform and Amazon deliberately breaking compatibility would be strange. Unfortunately that doesn't include patches to the inner workings of the framework like JBPatch.

Quote:
Originally Posted by ixtab View Post
Maybe (speculation!) it's even possible to run the 5.2.0 firmware on the K5 - or maybe not. We'll see.
This would of course be the best option for continued KT support.
bhaak is offline   Reply With Quote
Old 10-02-2012, 07:26 AM   #6
eureka
but forgot what it's like
eureka ought to be getting tired of karma fortunes by now.eureka ought to be getting tired of karma fortunes by now.eureka ought to be getting tired of karma fortunes by now.eureka ought to be getting tired of karma fortunes by now.eureka ought to be getting tired of karma fortunes by now.eureka ought to be getting tired of karma fortunes by now.eureka ought to be getting tired of karma fortunes by now.eureka ought to be getting tired of karma fortunes by now.eureka ought to be getting tired of karma fortunes by now.eureka ought to be getting tired of karma fortunes by now.eureka ought to be getting tired of karma fortunes by now.
 
Posts: 728
Karma: 2314258
Join Date: Dec 2011
Location: north (by northwest)
Device: Kindle Touch
Quote:
Originally Posted by bhaak View Post
Yes, that's exactly the point. How much effort will it be to support both devices? We just don't know yet for sure.

For native applications, it's quite likely that there will be no issues on the level of the CPU. Compiled code per se will likely run on both KT and the KP. But what about dynamically linked libraries? This will depend on how similar their firmware is. Then there are different screen resolutions which might or might not screw up your layout.

I think it would be surprising if wafs and kindlets wouldn't work on both devices. After all, browsers apps and Java apps easily work cross-platform and Amazon deliberately breaking compatibility would be strange. Unfortunately that doesn't include patches to the inner workings of the framework like JBPatch.
Different DPI and capacitive touchscreen are already supported by current KT's firmware (and was introduced with 5.1.0 or even earlier). And screenlight is also supported beginning from 5.1.0 (as had been found by ixtab).

It's just reasonable to expect that 5.2.0 is updated 5.1.2, KT-specific code (167 DPI, Neonode zForce touchscreen) wasn't removed and choice between KT- and KP-specific code is made in runtime.
eureka is offline   Reply With Quote
Old 10-02-2012, 08:04 AM   #7
twobob
( ͡° ͜ʖ ͡°){ʇlnɐɟ ƃǝs}Týr
twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.
 
twobob's Avatar
 
Posts: 6,552
Karma: 6021146
Join Date: Jun 2012
Location: uti gratia usura (Yao ying da ying; Mo ying da yieng)
Device: PW-WIFI|K5-3G+WIFI| K4|K3-3G|DXG|K2| Rooted Nook Touch
^this. I thought exactly this.

5.1.2++ (read: new label)
twobob is offline   Reply With Quote
Old 10-02-2012, 09:20 AM   #8
pirl8
Pest
pirl8 ought to be getting tired of karma fortunes by now.pirl8 ought to be getting tired of karma fortunes by now.pirl8 ought to be getting tired of karma fortunes by now.pirl8 ought to be getting tired of karma fortunes by now.pirl8 ought to be getting tired of karma fortunes by now.pirl8 ought to be getting tired of karma fortunes by now.pirl8 ought to be getting tired of karma fortunes by now.pirl8 ought to be getting tired of karma fortunes by now.pirl8 ought to be getting tired of karma fortunes by now.pirl8 ought to be getting tired of karma fortunes by now.pirl8 ought to be getting tired of karma fortunes by now.
 
Posts: 192
Karma: 239254
Join Date: Jan 2012
Location: Italy
Device: KT, KPW
Quote:
Originally Posted by ixtab View Post
So, I just learned this from here:

This is pretty much what I expected. Although there seem to be some serious UI changes wrt 5.1.0, it's still just an evolution of the "old" K5 firmware, not a complete revolution.
Maybe it's an "involution"? Half the memory, no audio support, no "home" button, 16 instead of 256 levels of grey...

Any clue if the new 5.2.0 firmware already comes with multilanguage support?
pirl8 is offline   Reply With Quote
Old 10-02-2012, 09:21 AM   #9
twobob
( ͡° ͜ʖ ͡°){ʇlnɐɟ ƃǝs}Týr
twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.twobob ought to be getting tired of karma fortunes by now.
 
twobob's Avatar
 
Posts: 6,552
Karma: 6021146
Join Date: Jun 2012
Location: uti gratia usura (Yao ying da ying; Mo ying da yieng)
Device: PW-WIFI|K5-3G+WIFI| K4|K3-3G|DXG|K2| Rooted Nook Touch
and of course 16 colors will nerf the OOTB SDL support IIRC. nice one.
twobob is offline   Reply With Quote
Old 10-02-2012, 09:51 AM   #10
geekmaster
Всё гениальное просто.
geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.
 
geekmaster's Avatar
 
Posts: 5,070
Karma: 6789001
Join Date: Nov 2011
Location: Щедрость не имеет пределов.
Device: *.*
Quote:
Originally Posted by pirl8 View Post
Maybe it's an "involution"? Half the memory, no audio support, no "home" button, 16 instead of 256 levels of grey...

Any clue if the new 5.2.0 firmware already comes with multilanguage support?
No eink screens are 256 colors. The K4 and K5 have two copies of the 4-bit value in each byte of the framebuffer. You can verify that by copying a screensaver image to your host PC and run a histogram on it, which will show 16 evenly-spaced spikes (4bpp). And the GPL source code for the eink driver says the top and bottom half of the bytes must match to prevent unpredictable hardware-dependent visual anomalies. Look at my newtrix demo to see how to display 256 colors by dithering it down to 16 colors. There is hardware dithering support in the K4/K5 SoC, but the Kindles don't use it (yet), as it looked when I studied it back in December.
geekmaster is offline   Reply With Quote
Old 10-02-2012, 09:54 AM   #11
knc1
Helpdesk Junkie
knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.
 
knc1's Avatar
 
Posts: 6,998
Karma: 6314536
Join Date: Feb 2012
Device: Too many.
The fewer gray-scale steps would give them better edge definition in the fonts.
And since they are promoting the "sharp and clear" characteristics, it seems a reasonable thing to do from a marketing stand-point.

It would not make as much sense if it was intended as a graphic display device rather than as a book display device.
knc1 is offline   Reply With Quote
Old 10-02-2012, 09:59 AM   #12
geekmaster
Всё гениальное просто.
geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.
 
geekmaster's Avatar
 
Posts: 5,070
Karma: 6789001
Join Date: Nov 2011
Location: Щедрость не имеет пределов.
Device: *.*
Quote:
Originally Posted by knc1 View Post
The fewer gray-scale steps would give them better edge definition in the fonts.
And since they are promoting the "sharp and clear" characteristics, it seems a reasonable thing to do from a marketing stand-point.

It would not make as much sense if it was intended as a graphic display device rather than as a book display device.
Not fewer. Just not two copies. I posted a thread some time ago, comparing screenshots to screen photos demonstrating the anomalies from not duplicating the top and bottom half-bytes, which was later confirmed in the GPL source code. See my post above for more details.
geekmaster is offline   Reply With Quote
Old 10-02-2012, 10:19 AM   #13
knc1
Helpdesk Junkie
knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.knc1 ought to be getting tired of karma fortunes by now.
 
knc1's Avatar
 
Posts: 6,998
Karma: 6314536
Join Date: Feb 2012
Device: Too many.
Quote:
Originally Posted by geekmaster View Post
Not fewer. Just not two copies. I posted a thread some time ago, comparing screenshots to screen photos demonstrating the anomalies from not duplicating the top and bottom half-bytes, which was later confirmed in the GPL source code. See my post above for more details.
The principle remains, independent of your prior work.
knc1 is offline   Reply With Quote
Old 10-02-2012, 10:20 AM   #14
ixtab
(offline)
ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.ixtab ought to be getting tired of karma fortunes by now.
 
ixtab's Avatar
 
Posts: 2,903
Karma: 6677559
Join Date: Dec 2011
Device: K3, K4, K5, KPW, KPW2
Quote:
Originally Posted by pirl8 View Post
Any clue if the new 5.2.0 firmware already comes with multilanguage support?
Yes. All the languages of 5.1.2, plus japanese.
ixtab is offline   Reply With Quote
Old 10-02-2012, 10:45 AM   #15
geekmaster
Всё гениальное просто.
geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.geekmaster ought to be getting tired of karma fortunes by now.
 
geekmaster's Avatar
 
Posts: 5,070
Karma: 6789001
Join Date: Nov 2011
Location: Щедрость не имеет пределов.
Device: *.*
Quote:
Originally Posted by knc1 View Post
The principle remains, independent of your prior work.
The principle that 16 colors gives better font antialiasing than 256 colors is not necessarily valid, and regarding eink displays, the comparison between 16 and 256 is not valid either. Even an 8-bit framebuffer is only 16 colors. But I think their antialiasing gamma is for LCD panels, when they should be using eink gamma similar to ink on paper.

Last edited by geekmaster; 10-02-2012 at 10:51 AM.
geekmaster is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Kindle Paperwhite Marc_liest Amazon Kindle 360 01-17-2014 06:24 AM
kindle paperwhite davepharos Devices 121 08-23-2013 01:56 PM
Kindle Paperwhite Review Andrew H. News 26 10-17-2012 07:31 PM
Confusion about the Kindle PaperWhite joblack Amazon Kindle 54 10-11-2012 12:05 PM
sounds on kindle paperwhite malmhdy Amazon Kindle 1 09-10-2012 06:12 AM


All times are GMT -4. The time now is 10:36 PM.


MobileRead.com is a privately owned, operated and funded community.