Some users raised an issue about "Pinch zoom without touchscreen".

As you know well, ODROID-X,X2,U2 don't have multi-point touch screen while Q2 has it.
So there is no way to implement the pinch zoom feature.

But we found a brilliant idea and we are implementing it now.
If you click the scroll-wheel on your mouse, the mouse cursor shape is change to "Magnifier" from "Arrow".

When you scroll up the wheel in Magnifier mode, Zoom-out events are generated via multi-touch emulator.
When you scroll down the wheel, Zoom-in events are generated.

If you see this video, you can feel how this new feature is great !!
This implementation is still Work-In-Progress. We will fix some bugs and improve the usability.
We are trying to release a new Android update by end of May.




ODROID-X2,ODROID-U2,ODROID-X

If you are interested in OpenGL ES 2.0 programming, you may know this famous book.

OpenGL ES 2.0 Programming Guide ( Addison Wesley )



The authors released some example source codes in this link.
http://code.google.com/p/opengles-book-samples/


We've tested the source codes with ARM Ubuntu on ODROID-X/X2/U2 which utilize the Mali GPU accelation in x11 window system.
But a few examples are not working due to some misused APIs. So we've fixed them and released the modified source codes.
Linux_X11_MaliTest.tar.gz



We've tested these examples on the ODROID and captured the running applications.

Chapter 2 : Hello Triangle.



Chapter 8 : Simple Vertex Shader



Chapter 9 : Simple Texture 2D



Chapter 9 : Texture Wrap



Chapter 9 : MipMap2D



Chapter 9 : Texture Cube map



Chapter 10 : Multi Texture



Chapter 11 : Multi Sample



Chapter 11 : Stencil Test



Chapter 13 : Practicle System



Tip !
You can find a PDF version of this great book with Goolgling. ;)


OpenGL,ODROID-X2,ODROID-U2,ODROID-X

ODROID-X2,ODROID-U2,ODROID-X,ODROID-Q2

We are going to show our ODROID development platform in the SCaLE Exhibition.





The Eleventh Annual Southern California Linux Expo
February 22-24, 2013  (Exhibition date : 23~24)
@ Hilton Los Angeles International Airport

You can find the ODROID in 5th page on this link.
https://www.socallinuxexpo.org/scale11x/exhibitors

If you want to see the ODROID in the wild, please visit us at booth #67.
Use this 4-digit promo code for your registration.
Promotion code : HARD ( For 40% discounts )


We are going to display various Linux distros and Android.

ODROID-U2 : ARM Ubuntu runs on 1080p Full-HD HDMI screen.



ODROID-U2 : Mali400 OpenGL-ES accelerated Quake3 3D Game on Ubuntu



ODROID-U2 :  OpenNI + OpenCV + OpenGL + PCL with Xtion/Kinect Sensor   (Android)



ODROID-U2 : Full-HD Shooting game (Android)



ODROID-X2 : Fedora 18 runs Web browser and 3D OpenGL-ES 2.0 Benchmarking tool GLMark2-ES2.



ODROID-X2 : OpenSUSE ARM 12.2 runs Web browser and 3D gear rendering.



ODROID-X2 : Xubuntu runs Web browser and Quad-core system monitor.



ODROID-Q2(Tablet) : Ubuntu runs Software Center and GLMark2-ES2.


Quake3 playing demo by mdrjr ;)


ODROID-X2,ODROID-U2,ODROID-X,ODROID-Q2

We already posted "How to make a bootable SD/microSD/eMMC" in this link.  http://www.hardkernel.com/?b130
But few people have met the problem of flashing SD with 'win32DiskImager' or 'dd' utility.

Those utilities read data from an OS image file and write it to storage media.
But USB host in your PC, USB memory card reader or SD card itself may have problem to perform the secure and stable image copy.

Because of those root causes, the OS image can't be copied properly or corrupted in SD card.
So I decided to add a feature of verification of written image on the win32DiskImager Ver 0.6.

Basic flow of writing/verification is here!
1. Read 512KB from OS image file to buffer-a.
2. Write 512KB(buffer-a) to SD card.
3. Read 512KB from SD card to buffer-b.
4. Compare buffer-a with buffer-b. If they are different, stop the loop.
5. Increase pointer and goto #1 by end-of-file.



You can download the modified Win32DiskImage binaries in this link. It is working with WinXP/Win7.
http://dn.odroid.com/DiskImager_ODROID/win32diskimager2-binary.zip

Modified source code is here. You need the MinGW and Qt 4.8.4 SDK to compile it.
http://dn.odroid.com/DiskImager_ODROID/win32diskimager2-source_ODROID.zip

Note
1. The writing time is almost twice of the original version because of verification process.
2. The file name/path should not contain the 2-byte characters like Korean,Chinese,Japanese and so on.



ODROID-X,ODROID-U,ODROID-X2,ODROID-U2,ODROID-Q2