Rotate
From Openmoko
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http://dev.laptop.org/~cjb/rotate | http://dev.laptop.org/~cjb/rotate | ||
− | + | == rotated == | |
+ | * author: Kurt Van Dijck <kurt.van.dijck_at_skynet.be> | ||
+ | * [http://www.ecirc.net/openmoko/rotated_0.9_armv4t.ipk] ipkg for 2008.12 | ||
+ | * [http://www.ecirc.net/openmoko/rotated.tgz] for sources | ||
− | I | + | I found that rotating the desktop area in landscape (using xrandr) makes the XGlamo eat the CPU on my GTA-02 |
− | + | system. | |
− | + | ||
− | + | ||
− | + | ||
− | + | Rotating the display head (xrandr --output default ...) works without major CPU load. | |
− | + | By using no libxrandr, but invoking xrandr commands, it only depends on the accelerometer. | |
− | the | + | |
== omnewrotate at code.google.com == | == omnewrotate at code.google.com == |
Revision as of 13:37, 11 January 2009
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Here's a quick and simple C program that reads a packet from the
accelerometer once per second, and rotates the screen to a new
orientation if the orientation has changed.
I don't mean this to conflict with Paul's excellent work on Gestures; my reason for writing it is so that it can be used as an always-on daemon in the OM distributions. (Full gesture interpretation is more CPU heavy and requires reading data more often than once per second, so perhaps that will be done on-demand instead of always-on.)
The code is: http://github.com/cjb/freerunner-rotate/tree/master/rotate.c?raw=true
There's an ARM binary here (chmod a+x rotate && ./rotate): http://dev.laptop.org/~cjb/rotate
Contents |
rotated
I found that rotating the desktop area in landscape (using xrandr) makes the XGlamo eat the CPU on my GTA-02 system.
Rotating the display head (xrandr --output default ...) works without major CPU load.
By using no libxrandr, but invoking xrandr commands, it only depends on the accelerometer.
omnewrotate at code.google.com
- author: Rui Miguel Silva Seabra <rms_ghaaaNoSpamPlease_at_1407_org>
- related blog posts:
- http://blog.1407.org/tag/rotate
- Patch for using libxrandr instead of system+xrandr
- source codes http://code.google.com/p/omnewrotate/ (there are problems with projects.openmoko.org )
- Arm releases built
accel-rotate at projects.openmoko.org
Rotate
Rotates the screen according to the position of the Neo FreeRunner.
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- Om2008.x package:
opkg install http://projects.openmoko.org/frs/download.php/455/accel-rotate_0.41_armv4t.ipk
- Qt Extended 4.4.1 package:
opkg install http://projects.openmoko.org/frs/download.php/456/accel-rotate-qte_0.41_armv4t.ipk
- Source codes are in subversion, developers are welcome
- TODO:
- better heuristics - any ideas how to do this well? please use discussion on this wiki.
- disabling on screensaver
- [3] how to display data from accelerometers on Desktop with gnuplot (there is a few of czech text, but there is also youtube video).