While calling ucopy* functions to copy data to image ,it passes box.width which is calculated from surface . If the image buffer created for image dimensions width=40 and u copy use surface width=48. Which is giving a wrong stride for dst buffer.
Thanks, Suresh G Get Outlook for Android<https://aka.ms/ghei36> ________________________________ From: Ilia Mirkin <imir...@alum.mit.edu> Sent: Tuesday, October 2, 2018 7:53:09 AM To: Sharma, Deepak Cc: ML Mesa-dev; Guttula, Suresh Subject: Re: [Mesa-dev] [PATCH] st/va:Aligned image width and height to 16. Looking at vlVaGetImage, it looks like it just copies data into the texture -- I don't see how UVD is implicated in this. Perhaps the transfer's stride is being set wrong? Or maybe either u_copy_nv12_to_yv12 or util_copy_rect (or one of the functions they call) is having trouble? On Mon, Oct 1, 2018 at 10:17 PM Sharma, Deepak <deepak.sha...@amd.com> wrote: > > 16 was considering UVD. > > in vlVagetImage, the width,height passed to function is not used but rather > the surface width/height and that causes issue in this case,not sure how > driver will handle that ? > > ________________________________ > From: Ilia Mirkin <imir...@alum.mit.edu> > Sent: Monday, October 1, 2018 6:49 PM > To: Sharma, Deepak > Cc: ML Mesa-dev; Guttula, Suresh > Subject: Re: [Mesa-dev] [PATCH] st/va:Aligned image width and height to 16. > > On Mon, Oct 1, 2018 at 9:47 PM Sharma, Deepak <deepak.sha...@amd.com> wrote: > > > > From: suresh guttula <suresh.gutt...@amd.com> > > > > In case of decoding of resolution like 40x24, while allocating surface > > video buffer is always aligned with macroblock width/height which is 16. > > But when application tries to get data after decoding through vaCreateImage > > /vaGetImage, image width/height aligned with 2 and result a smaller image > > buffer which causes the memory stomping issue. > > Shouldn't the driver be allocating a larger backing texture instead? > Why 16 and not 8 or 32 or 4096? > > -ilia
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