Gallium3D VDPAU On Radeon Starts Working

[pingufunkybeat]

But this is basically MC using the VDPAU interface, right? Most of the difficult parts of H264 are still not implemented, AFAIK.

Still very important, but not quite a fully accelerated shader solution just yet.

[yotambien]

Yes. See http://phoronix.com/forums/showthrea...634#post211634

EDIT: also note that r300 hardware means R300->R500.

But...this is awesome...

[oibaf]

Wait, what? What does this buy us r300 users? Has somebody tested it?

Yes. See http://phoronix.com/forums/showthrea...634#post211634

EDIT: also note that r300 hardware means R300->R500.

[yotambien]

VDPAU/XvMC gallium 3d acceleration is also supported on r300 hardware now (commit).

Wait, what? What does this buy us r300 users? Has somebody tested it?

[oibaf]

r300 also supported

VDPAU/XvMC gallium 3d acceleration is also supported on r300 hardware now (commit).

It is also available in my Ubuntu PPA.

[chithanh]

ATI drivers use shaders to do post-processing, but the actual decoding is fully done by the UVD hardware unit.

This is true for most cards that have an UVD unit. However as the 6770 is a rebranded Juniper, its UVD unit does not have the capabilities for MVC (Blu-Ray 3D) decode. So the decoding is done in the shaders.

[curaga]

That was only on the mach64 and maybe some early r128s. With radeon, it was all done on chip. From r300 onward it was done with shaders. On r1xx/r2xx there was a special mode you put the 3D engine into.

Thanks for the correction. BTW, is that special mode documented?

[agd5f]

Technically there's been some kind of hw video accel chip there from the Rage II+dvd onwards, I think. Perhaps it only does the MC part or something.

That was only on the mach64 and maybe some early r128s. With radeon, it was all done on chip. From r300 onward it was done with shaders. On r1xx/r2xx there was a special mode you put the 3D engine into.

[curaga]

Technically there's been some kind of hw video accel chip there from the Rage II+dvd onwards, I think. Perhaps it only does the MC part or something.

[pingufunkybeat]

ATI drivers use shaders to do post-processing, but the actual decoding is fully done by the UVD hardware unit.

Not on r500 and earlier, which do not have a UVD unit. It's all done in shaders there.