i.MX ProcessorsのトピックRe: GC400T GPU2D features

GC400T GPU2D features

kazumasasaki — Fri, 24 Feb 2017 10:32:19 GMT

I would like to know detail of GPU2D feature especially Image scaling. IMX6SXRM mentioned that GPU is supporting "Programmable high quality 9-tap, 32-phase filter". But, I could not find no more information regarding image scaling.

Q1. What kind of algorithm supporting at GPU of i.MX6 SoloX?

Q2. How do I chose(programming) these algorithm before execute image scaling?

Best Regards,

Kazuma Sasaki.

Re: GC400T GPU2D features

igorpadykov — Fri, 24 Feb 2017 23:38:15 GMT

Hi Kazuma

please refer to attached Linux Guide sect.7.3.14 Video conversion

and Graphics Guide. NXP BSPs can be found on

http://www.nxp.com/products/software-and-tools/software-development-tools/i.mx-software-and-tools/i.mx-6series-i.mx-7series-software-and-development-tool-resources:IMX_SW

Best regards
igor
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Re: GC400T GPU2D features

kazumasasaki — Mon, 27 Feb 2017 01:40:56 GMT

Hi igor,

I appreciate your support.

I've checked your recommend documents and sample source code. (g2d_test.cpp)

But, I could not understand clearly which scaling algorithm used in GPU.

When I execute resize function via G2D API, I will set several parameters to g2d_surface structure.

then, call g2d_blit function. At this case, I suppose GPU execute resize feature automatically. Is it right?

If yes, what kind of scaling algorithm using in GPU?

Nearest-neighbor interpolation, Bilinear and bicubic algorithms, Box sampling and etc?

Best Regards,

Kazuma Sasaki.

Re: GC400T GPU2D features

kazumasasaki — Mon, 06 Mar 2017 00:52:42 GMT

Hi igor,

Could you please follow the above question?

Best Regards,

Kazuma Sasaki.