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by dom
Sat Feb 04, 2012 1:25 pm
Forum: General discussion
Topic: Can i use raspberry pi mainly for web browsing?
Replies: 62
Views: 21246

Re: Can i use raspberry pi mainly for web browsing?

<t>If it"s not immediate mode there"s a possibility of getting the GPU (or its hardware video scaler) to help. It"s very good for format conversion, alpha/masked blits, scaling etc.<br/> But it"s pretty high latency. No point in sending blit 8x8 rectangle, read back a pixel, blit another 8x8 rectang...
by dom
Sat Feb 04, 2012 11:14 am
Forum: General discussion
Topic: Can i use raspberry pi mainly for web browsing?
Replies: 62
Views: 21246

Re: Can i use raspberry pi mainly for web browsing?

<t>dom, if the 2D engine is really quite capable, it should be easy to come up with a full-featured EXA driver that covers all basic hooks (Solid, Copy, Composite, UTS, DFS). That"s enough to get speedy 2D, for the most part.<br/> <br/> Can we have docs for this?<br/> <br/> You will get docs and exa...
by dom
Sat Feb 04, 2012 9:59 am
Forum: General discussion
Topic: What happened to the Beta Boards?
Replies: 31
Views: 10732

Re: What happened to the Beta Boards?

There were 25 beta boards.
by dom
Fri Feb 03, 2012 11:36 pm
Forum: General discussion
Topic: ARM-side privileged closed-source Broadcom libraries?
Replies: 62
Views: 7419

Re: ARM-side privileged closed-source Broadcom libraries?

<t>I booted from your gentoo rootfs.<br/> <br/> I was able to build a number of apps that link with openmax and opengles.<br/> <br/> The openmax ones work – was able to run a simple audio and video test.<br/> <br/> eglinfo works:<br/> <br/> EGL<br/> Vendor: Broadcom<br/> Version: 1.4<br/> Client API...
by dom
Fri Feb 03, 2012 9:29 pm
Forum: General discussion
Topic: ARM-side privileged closed-source Broadcom libraries?
Replies: 62
Views: 7419

Re: ARM-side privileged closed-source Broadcom libraries?

<r>dom said: <br/> <br/> <br/> Can you check if these libraries are built how you want:<br/> <br/> <URL url="http://dl.dropbox.com/u/366951.....hardfp.zip">http://dl.dropbox.com/u/366951.....hardfp.zip</URL><br/> <br/> <br/> It"s hard to tell whether it really works without hardware, but poking thro...
by dom
Fri Feb 03, 2012 7:01 pm
Forum: General discussion
Topic: Can i use raspberry pi mainly for web browsing?
Replies: 62
Views: 21246

Re: Can i use raspberry pi mainly for web browsing?

<t>WereCatf said: <br/> <br/> <br/> lb said: <br/> <br/> <br/> A serious problem is the lack of an X.org DDX driver for the Pi.<br/> <br/> <br/> Is it really true that there is no XRender et. al. acceleration available?<br/> <br/> <br/> <br/> No acceleration yet.<br/> <br/> The arm does have access ...
by dom
Fri Feb 03, 2012 6:31 pm
Forum: General discussion
Topic: ARM-side privileged closed-source Broadcom libraries?
Replies: 62
Views: 7419

Re: ARM-side privileged closed-source Broadcom libraries?

Can you check if these libraries are built how you want:

http://dl.dropbox.com/u/366951.....hardfp.zip
by dom
Fri Feb 03, 2012 1:07 pm
Forum: General discussion
Topic: ARM-side privileged closed-source Broadcom libraries?
Replies: 62
Views: 7419

Re: ARM-side privileged closed-source Broadcom libraries?

Actually a colleague had built a hardfloat ABI gcc toolchain. CMake seems to build something. Looks plausible - I'll investigate more closely tonight.
by dom
Fri Feb 03, 2012 11:47 am
Forum: General discussion
Topic: ARM-side privileged closed-source Broadcom libraries?
Replies: 62
Views: 7419

Re: ARM-side privileged closed-source Broadcom libraries?

<r>Out cmake build system fails with -mfloat-abi=hard:<br/> <br/> <URL url="http://pastebin.com/zZRML4wF">http://pastebin.com/zZRML4wF</URL><br/> <br/> Our compiler doesn't have c runtime libs built with hardfloat abi - I guess that's the problem.<br/> <br/> Did you build a gcc/libs with hardfloat a...
by dom
Fri Feb 03, 2012 10:22 am
Forum: General discussion
Topic: Can i use raspberry pi mainly for web browsing?
Replies: 62
Views: 21246

Re: Can i use raspberry pi mainly for web browsing?

You can install Iceweasel from Debian. It"s a bit of a resource hog and is slower then Midori, but it works.
by dom
Fri Feb 03, 2012 2:05 am
Forum: General discussion
Topic: ARM-side privileged closed-source Broadcom libraries?
Replies: 62
Views: 7419

Re: ARM-side privileged closed-source Broadcom libraries?

So, @dom, is that enough for you to begin work?

Looks promising. I"ll have a go at building the libs with your flags.
by dom
Wed Feb 01, 2012 9:43 pm
Forum: General discussion
Topic: New blog post from JamesH on the main page
Replies: 56
Views: 8043

Re: New blog post from JamesH on the main page

You can work out the cost of each audio/video codec here:

http://www.streamcrest.com/Lic.....ator9.html
by dom
Wed Feb 01, 2012 8:09 pm
Forum: Other projects
Topic: Programatically lock SD Card to hardware unit?
Replies: 28
Views: 5318

Re: Programatically lock SD Card to hardware unit?

HansH said:


I would be interesting to know how I can get my Pi's serialnumber from it...

Perhaps I will get  no 11



cat /proc/cpuinfo

11 has gone...
by dom
Wed Feb 01, 2012 7:37 pm
Forum: General discussion
Topic: ARM-side privileged closed-source Broadcom libraries?
Replies: 62
Views: 7419

Re: ARM-side privileged closed-source Broadcom libraries?

<t>Chromatix said: <br/> <br/> <br/> May I ask whether the userspace libraries will come in a hardfloat ABI version?  That seems to be the main barrier to making the entire system hardfloat, which is by far the most efficient way to run an ARM with VFP.<br/> <br/> <br/> <br/> It should be possible t...
by dom
Wed Feb 01, 2012 9:52 am
Forum: General discussion
Topic: ARM-side privileged closed-source Broadcom libraries?
Replies: 62
Views: 7419

Re: ARM-side privileged closed-source Broadcom libraries?

User space libraries can only communicate with the GPU through the (vchiq) kernel driver.
by dom
Tue Jan 31, 2012 11:03 pm
Forum: General discussion
Topic: New blog post from JamesH on the main page
Replies: 56
Views: 8043

Re: New blog post from JamesH on the main page

<t>All codecs running on the GPU require significant software (even the hardware accelerated ones).<br/> We typically implement codecs as dlls (they have a .vll extension), so they can be loaded and unloaded as required. They live on the ARM file system, and we use a file daemon (vcfiled) to provide...
by dom
Tue Jan 31, 2012 8:20 pm
Forum: General discussion
Topic: New blog post from JamesH on the main page
Replies: 56
Views: 8043

Re: New blog post from JamesH on the main page

mp3 requires licensing (and is more expensive than h264), so no GPU decode.
But audio is easy enough for ARM to decode, so shouldn"t be a problem.
by dom
Tue Jan 31, 2012 8:00 pm
Forum: General discussion
Topic: Kernel Patches
Replies: 13
Views: 1972

Re: Kernel Patches

We"d love our kernel patches to be upstreamed.
None of us have experience in this, so we"re looking for community help.
by dom
Tue Jan 31, 2012 7:17 pm
Forum: General discussion
Topic: New blog post from JamesH on the main page
Replies: 56
Views: 8043

Re: New blog post from JamesH on the main page

<t>Liz could you correct the blog post?<br/> <br/> "There are non-licensed Codecs such at VP8, Xvid etc, but for the moment they will not be accelerated by the GPU."<br/> <br/> These are bad examples. Firstly VP8 is license free. Xvid is not a codec, but an implmentation of mpeg4 part2, and we suppo...
by dom
Tue Jan 31, 2012 6:23 pm
Forum: General discussion
Topic: New blog post from JamesH on the main page
Replies: 56
Views: 8043

Re: New blog post from JamesH on the main page

From wikipedia

Xvid (formerly "XviD") is a video codec library following the MPEG-4 standard, specifically MPEG-4 Part 2 Advanced Simple Profile (ASP).

Similarly for DivX.

These follow the mpeg4 standard and our mpeg4 decoder will play these happily.
by dom
Mon Jan 30, 2012 11:51 pm
Forum: General discussion
Topic: Cases and static
Replies: 11
Views: 2317

Re: Cases and static

<r>This was the cable (in fact I bought two – they were only 99p when I bought them):<br/> <br/> <URL url="http://www.ebay.co.uk/itm/ws/e.....0744534601">http://www.ebay.co.uk/itm/ws/e.....0744534601</URL><br/> <br/> Resistance of 5ohms. 5V in one end. Less than 4V out the other. R-Pi not very stabl...
by dom
Mon Jan 30, 2012 8:34 pm
Forum: General discussion
Topic: Cases and static
Replies: 11
Views: 2317

Re: Cases and static

I wouldn't be too concerned about static. I've been manhandling boards like this for years - without a wriststrap, and have never known a board to be killed by static.
by dom
Mon Jan 30, 2012 7:05 pm
Forum: General discussion
Topic: OpenGL ES extensions and limits
Replies: 14
Views: 17573

Re: OpenGL ES extensions and limits

<t>./eglinfo<br/> EGL<br/> Vendor: Broadcom<br/> Version: 1.4<br/> Client APIs: OpenGL_ES OpenVG<br/> Extensions: EGL_KHR_image EGL_KHR_image_base EGL_KHR_image_pixmap EGL_KHR_vg_parent_image EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_lock_surface<br/> OpenGL ES<br/> Vendor...
by dom
Sat Jan 28, 2012 6:34 pm
Forum: General discussion
Topic: FPU flags test
Replies: 2
Views: 1499

Re: FPU flags test

<t>You are completely correct.<br/> <br/> All debian packages (including C runtime) are build with software floating point. This is very slow on software that heavily uses floating point.<br/> <br/> We have produced replacement debian C runtime libraries that are built with -mfpu=vfp. They do make s...
by dom
Fri Jan 27, 2012 6:51 pm
Forum: General discussion
Topic: Remote desktop application and use
Replies: 13
Views: 4133

Re: Remote desktop application and use

I've installed a remote desktop client on Raspberry Pi and connected to my Windows 7 PC. Seemed pretty usable.

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