the sx20 porting thread

afrikaa

hello, you can download the firmware 1.02b by SX20?

oiram

Hallo together,

some news about the sx20 porting ?

greets

Mario

jan

I just noticed that the auto rotation of images doesn't work correctly with the latest version of neszt's CHDK port. When taking a picture in portrait mode it is only correctly rotated when the camera is held with the flash on the left side. Otherwise the picture is saved upside down. That's not a very big problem, but it's annoying.

Another issue is that the OSD is not displayed when the display is opened.

It would be nice to have a fix for this, and as well for RAW. (Currently I would have to build my own version with the patch someone posted, but I don't want to do this, so a new pre-built version would be nice).

Peter HT

So no final release yet?

neszt

jan
I just noticed that the auto rotation of images doesn't work correctly with the latest version of neszt's CHDK port. When taking a picture in portrait mode it is only correctly rotated when the camera is held with the flash on the left side. Otherwise the picture is saved upside down. That's not a very big problem, but it's annoying.

Another issue is that the OSD is not displayed when the display is opened.

It would be nice to have a fix for this, and as well for RAW. (Currently I would have to build my own version with the patch someone posted, but I don't want to do this, so a new pre-built version would be nice).

I plan to update my CHDK port, because i see a lot of changes have been made in the svn repo in the last few weeks.

Will you please describe the mentioned problems more detailed?

- Auto rotation problem. (How to reproduce?)
- OSD not displayed when the display opened. (What "display opened" means?)
- RAW fix: Do you mean the corrected x,y values or something else? Please link the patch that someone posted.

neszt

oiram
Hallo together,

some news about the sx20 porting ?

greets

Mario

There is a beta port for firmware 1.00F as you see: https://chdk.setepontos.com/d/4348/228

Please let me know is you miss something

neszt

Peter HT
So no final release yet?

😀 There is a final beta release...
Come on boys, test it, and let me know if any bug found.

jan

neszt
- Auto rotation problem. (How to reproduce?)

When taking a photo in portrait format the picture is saved upside down, when holding the camera in one of the two possible ways (when the side with the shutter is on the bottom). Otherwise the picture is saved correctly. This doesn't happen without CHDK (SD card unlocked).

neszt
- OSD not displayed when the display opened. (What "display opened" means?)

The OSD is not displayed correctly in all positions of the swivel screen. When it is just swung out, but not rotated, only a small part of the OSD is displayed mirrored. I've attached some pictures to show this.

neszt
- RAW fix: Do you mean the corrected x,y values or something else? Please link the patch that someone posted.

Yes, I mean the x/y values. Here's the link: https://chdk.setepontos.com/d/4348/231

dzsemx

that's an old bug... it works like that on all cameras with flip screen...
btw turn off reverse display option from canon menu, and everything will look fine...
but it's a bit harder to shoot self portraits 😀

oiram

@neszt

I have firmware version 1.0.2.0

This one won´t fit.

Mario

Coaster

I have SX20 firmware GM1.02B
Has anyone started working on a port to this version?

Don

Peter HT

According to usa.canon.com: No firmware updates are available for this product.
Guess this means there's only one firmware version.

fe50

Peter HT
According to usa.canon.com: No firmware updates are available for this product.
Guess this means there's only one firmware version.

No, that's wrong.
Canon very rarely releases fw updates.
For many models there are lots of different fw versions out there, but not a Canon fw update; for the SX10 there are at least 5 known fw versions out there...

neszt

For those with newer/other firmware version that 1.00F:

The very first thing we need is an error free firmware dump.

How to dump the firmware? It is not too hard. I was able to dump the firmware (1.00F) from my SX20, read this topic to follow my way: https://chdk.setepontos.com/d/4188

Having a correct dump i can help much in porting if someone want to start. (But i'am sure, reading this topic is a step-by-step instruction to avoid the stuck, and make the firmware for newer versions)

endgame

Sorry for reposting my question, but I think it got lost in the other posts.

What I'm looking for is the ability to readd the lost super fine option to SX20.
I saw that something similar was done in the CHDK of SX200
https://chdk.setepontos.com/d/3994/568
It would be great if this menu option be introduced to the SX20 CHDK as well.

Thanks for all your hard work,

endgame

Hello,

I wanted to compile the latest version of SX20 code on WinXp. To do so, I downloaded a snapshot of the latest code (2e395a6f4ace828eddc6b9ce356e9886b668e6f6), configured the latest version of CHDK (2.56), pointed to the trunk containing the SX20 code and tried to compile it.
Things seem to be working well, but I got the following compilation error:

loslib.c: In function 'os_stat':
loslib.c:298: error: 'struct stat' has no member named 'st_dev'
loslib.c:300: error: 'struct stat' has no member named 'st_mode'
loslib.c:309: error: 'struct stat' has no member named 'st_atime'
loslib.c:331: error: 'struct stat' has no member named 'st_blksize'
loslib.c:332: error: 'struct stat' has no member named 'st_blocks'
D:\chdk\gcc4\bin\gmake.exe[2]: *** [loslib.o] Error 1
D:\chdk\gcc4\bin\gmake.exe[1]: *** [all-recursive] Error 1
gmake: *** [all-recursive] Error 1

It seems that in loslib.c, the include of sys/stat.h isn't reached due to HOST_LUA not being defined. In any case, had it been defined, the definitions made at camera.h ( #define CAM_DRYOS 1) would have made this fields unavailable.
Where did I go wrong?

Many thanks

neszt

endgame
Sorry for reposting my question, but I think it got lost in the other posts.

What I'm looking for is the ability to readd the lost super fine option to SX20.
I saw that something similar was done in the CHDK of SX200
https://chdk.setepontos.com/d/3994/568
It would be great if this menu option be introduced to the SX20 CHDK as well.

Thanks for all your hard work,

Thank you for linking that post. I'll check if CAM_QUALITY_OVERRIDE can be used for SX20.

neszt

endgame
Hello,

I wanted to compile the latest version of SX20 code on WinXp. To do so, I downloaded a snapshot of the latest code (2e395a6f4ace828eddc6b9ce356e9886b668e6f6), configured the latest version of CHDK (2.56), pointed to the trunk containing the SX20 code and tried to compile it.
Things seem to be working well, but I got the following compilation error:

loslib.c: In function 'os_stat':
loslib.c:298: error: 'struct stat' has no member named 'st_dev'
loslib.c:300: error: 'struct stat' has no member named 'st_mode'
loslib.c:309: error: 'struct stat' has no member named 'st_atime'
loslib.c:331: error: 'struct stat' has no member named 'st_blksize'
loslib.c:332: error: 'struct stat' has no member named 'st_blocks'
D:\chdk\gcc4\bin\gmake.exe[2]: *** [loslib.o] Error 1
D:\chdk\gcc4\bin\gmake.exe[1]: *** [all-recursive] Error 1
gmake: *** [all-recursive] Error 1

It seems that in loslib.c, the include of sys/stat.h isn't reached due to HOST_LUA not being defined. In any case, had it been defined, the definitions made at camera.h ( #define CAM_DRYOS 1) would have made this fields unavailable.
Where did I go wrong?

Many thanks

Short answer is, switch off the OPT_LUA_OSLIB in the compile options.

Long answer keyword is CAM_DRYOS_2_3_R39. The stat function seems to changed in deep, so there are parts of CHDK needs to modify correspondingly to work as expected.

neszt

jan
When taking a photo in portrait format the picture is saved upside down, when holding the camera in one of the two possible ways (when the side with the shutter is on the bottom). Otherwise the picture is saved correctly. This doesn't happen without CHDK (SD card unlocked).

Huhh, finally i understand, and i can reproduce. 😀 This problem could be CHDK related not just especially SX20 port. Would be good to know if can be reproduce on other cameras, as I expected.

The OSD is not displayed correctly in all positions of the swivel screen. When it is just swung out, but not rotated, only a small part of the OSD is displayed mirrored. I've attached some pictures to show this.

The same, CHDK related problem, as someone told already. I'am sure this happens on all flip LCD cameras (S1IS, S2IS, S3IS, S5IS, SX10, SX20)

Yes, I mean the x/y values. Here's the link: http://chdk.setepontos.com/index.php

Ok.

Now I try to concentrate only for SX20 porting, but later on probably i'll check the CHDK related problems also.

neszt

SX20 1.00F beta firmware update.

http://chdk.neszt.hu/bin (For testers)
http://chdk.neszt.hu/git (For sourcecode maintainers)

- FIX * Compiling fixes according to lastest SVN revision (866)
- FIX * RAW x,y coords fixed
- NEW * Image quality can be override (the new superfine option now stores ~75% bigger files)

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