Re: numerous kernel panics when using OpenCL inside FCPX
Re: numerous kernel panics when using OpenCL inside FCPX
- Subject: Re: numerous kernel panics when using OpenCL inside FCPX
- From: Paul Miller <email@hidden>
- Date: Fri, 26 Apr 2013 14:56:53 -0500
- Organization: FXTEC
On 4/26/2013 1:47 PM, Garrick Meeker wrote:
Some drivers do have bugs. The AMD driver in 10.6, in particular, may not be worth supporting. It doesn't support OpenCL images (requiring buffers only) and while we did work around that, we found the OpenCL/OpenGL interop so buggy that we disabled FxPlug hardware rendering for these cards/OS (instead transferring from host memory to the card). AMD 6xxx cards in 10.7 had issues (something I found with local memory) but an update seemed to fix that.
FOUND IT.
In some cases (in this case, D1) the input and output bitmaps are
different sizes. The input image was one line taller than the output image.
Since I assumed they were the same size, I was doing all the processing
at the input size, and when I tried to read it back to the output image,
it barfed.
Funny, I had solved this problem before, but as this is all new clean
code, I didn't incorporate the fix. Need to keep track of all of these
little gotchas somewhere.
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