This is my entry for the coding competition, and here is a first working example. More features will come as they are being completed. For now you can just focus and take a picture which is saved in .jpg and .dng in full resolution in the DCIM folder of your mass storage space.

Also I made the first 12MP image with the N950 although the colors are wrong (and the viewfinder doesn't work). I have a hint what could fix the color issue but not the viewfinder. Anyway, here is proof and the .deb file for experimentation.



update

New version out with manual exposure control. Sources available at github.com/qwazix/rawcam and github.com/harmattan/rawcam so no need to upload them here.

Please test and report.

update (beta 3)
Manual and spot autofocus is fresh out of the oven


update (beta 4)
Full manual controls: Auto, Shutter priority, ISO priority, Manual
Fixed the flashing under electric lighting bug
Fixed the "not saving last photo" bug


update (beta 5)
Flash controls, "half" flash, "full" flash, no flash and back curtain flash
"Open last photo in gallery" button. (only visible after you take a photo, and it is properly saved - may take a while)


update (beta 6)
* Added simple settings
* When switching to manual controls, sliders adjust according to previous exposure
* Tried to fix the overlay issue. hint: When running the application as developer, it doesn't happen. I have to look into it again

update (beta 8) Now for N900 too
* Added white balance
* Added N900 support (download from extras-devel)


rawcam 1.0.0 RC
* Fixed overlay bug
* Added visual feedback for capture
* Fixed flash bug

rawcam 1.0.3
* Added stabilization
See post #187 to test an early version. Only for N9 for now, fremantle version will come later.

rawcam 1.0.4
* Fixed the creation of the DCIM folder which was accidentally commented out
* Fixed the accelerometer based stabilization to work in all conditions
* Added a combined Accelerometer&Burst stabilization mode
* Now N900 version is again on par with N9
* N900 when quitting by closing lens cover still inhibits the regular camera from working until reboot. Currently only workaround is to go to switcher and press the x button.

Get harmattan binary from my repository and fremantle from extras. Developer mode is required for harmattan. (If you enable it once it will still work after you disable it)

rawcam 1.0.7
N900 only.
* fixed the bug with camera-ui crashing after rawcam.
* promoted to extras-testing. Please upvote if you think it's bug-free
http://maemo.org/packages/package_in.../rawcam/1.0.7/

Pictures don't show up in gallery? It's a known tracker bug see pages 6-7 of this thread. (Or click here for the fix.)

Many many thanks to rzr and ZogG for the invaluable help, and their efforts to make it easier for me to build and for the community to download. Also thanks to freemangordon for the help on the N900 port