Cross Compiling libavg for ARM

libavg is a high-level development platform for media-centric applications using Python as scripting language and written in C++. Bear in mind that are many dependencies with libavg 1.6. I have not built all the libraries required, but instead simply taken the pre-built binaries and header files in the qemu overo image and copied the files as follows: mkdir mnt sudo mount -o loop,offset=$[106496*512] overo_sd_alip.img mnt mkdir ~/edev/beagleboard/libs/lib -p mkdir ~/edev/beagleboard/libs/include cp mnt/usr/lib/* ~/edev/beagleboard/libs/lib/ -rf -d cp mnt/lib/* ~/edev/beagleboard/libs/lib/ -rf -d cp /mnt/usr/include/* ~/edev/beagleboard/libs/include -rf -d sudo umount mnt The -d flag skips the symlink, so we need to recreate then for all library so that the compiler can find libname.so instead of libname.so.12. Save the following scripts to symlinks.sh:

and run it where the arm libraries are located (in my case in /home/jaufranc/edev/beagleboard/libs/lib, /home/jaufranc/edev/beagleboard/libs/lib/arm-linux-gnueabi and /home/jaufranc/edev/beagleboard/libs/lib/mesa). This will  create symlinks for most libraries, but not all. Some will still […]

Cross-Compiling Mesa 3D Graphics Library for ARM

Mesa is an open-source implementation of the OpenGL specification that can be used for software emulation or  complete hardware acceleration for modern GPUs.The Mesa library is used by a variety of games (e.g. Quake 2.3), libraries (e.g PyOpenGL), science and technical applications and utilities (e.g. xscreensaver). MesaLib requires X11 libraries. I’ll assume those are already cross-compiled here. For this build, I used pre-built X11 libraries found in ALIP (ARM Internet Platform) binaries. I used the method described here and copied the libs in /lib and /usr/lib and header files in /lib/include found in the qemu overo image respectively to /home/jaufranc/edeve/beagleboard/libs/lib and /home/jaufranc/edeve/beagleboard/libs/include. make sure you use the “-d” with cp to avoid copying the symlinks or some symbolic links would point to x86 binaries or files that do not exist. Here are the instructions to cross-compile MesaLib 7.11 for ARM using arm-linux-guneabi-gcc: Download the latest version of Mesa source code: […]

New Remote Technologies to Control Smart TVs

With Internet-connected flat TVs and set-top boxes, we can now use browse the web and play games. But the traditional remote is not up to the task and new solutions are needed to interact with smart TVs and internet STB such as gesture recognition,  wii-like remotes and tablet/smartphone control. A few companies showcased their solutions at IBC (International Broadcasting Convention) 2011, which took place between the 9th and 13th of September 2011 in Amsterdam: PrimeSense Gesture Recognition PrimeSense, an Israel-based company known for its range image sensor embedded in the “Kinect” motion-based controller for Xbox, began to promote the sales of its range image sensors to TV and STB makers.  PrimeSense ran a prototyped UI software on a notebook PC and controlled the UI by using a gesture recognition device connected to a PC. The UI can be operated by moving a hand. You can then control TV screen like […]

How to Develop and Port Android to a New Hardware Platform with Linaro

Zach Pfeffer, Linaro Android Working Group tech lead, gives an introduction to making Android work on a new hardware platform at Linaro Connect Q3.11 in Cambridge, August 2011. He starts by giving details about Android, its implementation, and how source code is managed. He then gives details about how to add support for a new board, taking advantage of Linaro scripts and infrastructure, already supporting community boards from several ARM SoC vendors. Here are the main topics covered during this 48 minutes presentation: General Android Overview (at 5:00 in the video) and different Android “components”: The Linux kernel Non-upstreamed kernel extensions A set of shared and static libraries A set of Hardware Abstraction Layers (HALs) A JIT capable VM Android activity framework Android applications Repo, Gerrit and Git (25:50) Porting to a new Platform (35:07) HALs and Hardware Acceleration (39:00) Continuous Integration (41:02) Linaro Evaluation Build (LEB) Integration (45:06) Slides […]

OpenCL (Open Computing Language) Overview and SDKs

OpenCL (Open Computing Language) is a multi-vendor open standard for general-purpose parallel  programming of heterogeneous systems that include CPUs, GPUs and other processors. OpenCL provides a uniform programming environment for software developers to write efficient, portable code for highperformance compute servers, desktop computer systems and handheld devices. OpenCL standard is managed and defined by the Khronos Group. The latest version (OpenCL 1.1) was ratified by the Khronos Group on the 14th of June 2010 and adds significant functionality for enhanced parallel programming flexibility, functionality and performance including: Host-thread safety, enabling OpenCL commands to be enqueued from multiple host threads. Sub-buffer objects to distribute regions of a buffer across multiple OpenCL devices. User events to enable enqueued OpenCL commands to wait on external events. Event callbacks that can be used to enqueue new OpenCL commands based on event state changes in a non-blocking manner. 3-component vector data types. Global work-offset which […]

Intel and Google to work on Android for Atom

Intel officially announced it will collaborate with Google to optimize the Android OS for Intel’s Atom processor platform in order to help Intel entering the smartphone market. In his keynote on the 13th of September – the first day of the Intel Developer Forum 2011 – Intel CEO Paul Otellini announced the partnership with Google to support Android on Atom processors and said the first Intel-based smartphones will be available in the first half of 2012. Paul Otellini demoed Intel’s Android smartphone reference platform running Android 2.3 (Gingerbread). The phone is 9.5mm thick, had an HDMI output, NFC support and features Intel’s 32nm Medfield processor which is said to include a newer generation GPU. Intel also showed off the new ISP (Image Signal Processor) capabilities in Medfield which is capable of capturing up to 20 fps at 1600 x 1200. However, the reference platform could only deliver 10 fps from […]

Installing Android 2.3.5 on HP TouchPad

The instructions to install Android 2.3.5 (Pre-Alpha) on HP TouchPad have now been made available for developers by fnj00 (touch-droid community) who want to play with the system. N.B: Normal users should not install this version as this is a pre-alpha build and some features like wifi do not work. You can get the system dump and android.uImage at http://touch-droid.com/touch-droid.torrent or http://randomshit.dreamhosters.com/TouchPad/. This system dumps use the touch screen drivers recently made available by CyanogenMod Team. You’ll also need to install the Palm SDK in order to have Novaterm and Novacom installed on your computer. Then you’ll have to re-partition your flash to add one partition for Android and dump the system image to the new partition. Please visit Semi-working build of 2.3.5 on the HP TouchPad to get the step by step instructions to install Android 2.3.5 on your HP TouchPad. After installation, you’ll have a dual boot system […]

Low Cost Android Set-Top Box based on HiSilicon Hi3716C

Shenzhen Coolech Technology showcased an Android 2.2 Set-top box (Android Deluxe) powered by HiSilicon Hi3716C – a SoC designed around single core ARM Cortex A9 – at IFA 2011 in Berlin. This STB comes with 2 USB host port, 1 USB device port, composite and HDMI video output,  SPDIF optical output, an Ethernet port and a SD Card reader. Here are the technical specifications of Android Deluxe set-top box: Description Operating System  Android 2.2 Processor  High-performance core solo ARM Cortex A9 processor 1GHz Hardware JAVA acceleration Graphic Unit  Enhanced full-hardware 2D/3D graphics acceleration engine, OpenGL Video Connections  HDMI1.4; CVBS; Audio Connections  HDMI1.3; Stereo; Optical S/PDIF  AC Adapter  Input: 100-240V           Output: 12V/3A  SATA Interface  SATA II x1 or eSATA x1 USB Interface  USB 2.0 Host x2; USB 2.0 Device x1 (Option: USB 3.0 Device)  SDIO Interface  8-bit SD input/output x1  DVB  Two DVB Channel with PVR Network Interface  10/100 Mbit/s adaptive Ethernet […]

Exit mobile version
Youyeetoo X1 x86 SBC