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Topics - ddv2005

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Discussion - EVE / BT81X Bilinear filtering make dark border on bitmaps
« on: February 19, 2021, 08:02:15 AM »
Hello,

I have found that each bitmap in bilinear filtering mode has dark border. On attached picture left image rendered in NEAREST filtering mode and no dark borders. Right image the same but in BILINEAR mode and you can see grey border.
As I understand BT81X just mix black color at the edges that absolutely weird and unacceptable.
Is it any way to do not mix black color at edges in bilinear filtering mode?

2
Discussion - EVE / BT81X rendering ASTC image from flash
« on: February 18, 2021, 03:26:02 PM »
Hello,

I have MatrixOrbital EVE3-35A-IPS screen and trying to render map tiles (240x240px ASTC 4x4) directly from attached 128Mbit flash.
I can render 1 image without transformations but if I try to scale image then screen start blinking black sometimes. EVE works on 72Mhz, PCLK=10
If I copy image from flash to RAMG then it works fine but direct rendering does not work. I don't understand what the reason for direct flash image rendering if it can't process even one small image.
...Or maybe I do something wrong.

Best Regards,
Dmitry

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