216w ago - Just before the weekend, slouken posted (linked above) the following PS3 Linux SDL video support patch news:
Hello. This patch provides basic support for video on the Sony PS3 Linux framebuffer.
Scaling, format-conversion, and drawing is done from the SPEs, so there is little performance impact to PPE applications.
This is by no means production quality code, but it is a very good start and a good example of how to use the PS3's hardware capabilities to accelerate video playback on the box.
The driver has been verified to work with ffplay, mplayer and xine. This piece of software has been developed at the IBM R&D Lab in Boeblingen, Germany and is now returned to the community. Enjoy !
SDL on Sony PlayStation 3
First, you have to install the Cell SDK:
• Download the Cell SDK installer RPM and ISO images to a temporary directory such as /tmp/cellsdk.
• Mount the image: mount -o loop CellSDK-Devel-Fedora_126.96.36.199.0.iso /tmp/cellsdk
• Install the SDK installer: rpm -ivh cell-install-3.1.0-0.0.noarch.rpm
• Install the SDK: cd /opt/cell && ./cellsdk --iso /tmp/cellsdkiso install
You need to install the SPU-libs before installing SDL:
• Go to SDL-1.2/src/video/ps3/spulibs/
• Run make && make install
Finally, install SDL:
• Go to SDL-1.2/ and build SDL like any other GNU style package.
• Build the configure-script with ./autogen.sh
• Configure SDL for your needs: ./configure --enable-video-ps3 ...
• Build and install it: make && make install
Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene updates and homebrew releases!
No, the RSX (the video card in the PS3) is still not available to Linux. But the Cell CPU in the PS3 has a fairly standard "PPU" (basically a normal PowerPC CPU, like in non-Intel Macs) and a bunch of specialized vector processors called "SPUs" ("Synergistic Processing Units").
This new software uses those SPUs to do video work, instead of making the normal CPU do it. Not as good as having the video card do it (doing it in full hardware), but better than doing it on the main CPU (pure software). This is kinda-sorta between doing it in hardware and doing it in software.
There is work on trying to get 3D graphics done purely on the SPUs (http://www.mesa3d.org/cell.html), but it's a big job. It probably won't be as fast as the RSX, but it'll be a lot better than pure software OpenGL.