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Discussion - EVE / double buffering, alpha blending, vertical blanking on EVE
« on: May 20, 2021, 02:46:52 PM »
Hello,
I like to draw (or copy pixels from a MCU) in a working memory buffer region that is not actively displayed while the LCD controller is displaying another region buffer. I would like to periodically make the LCD controller switch the two memory regions (double buffering)or use some kind of alpha blending visibility to toggle the two regions. Can EVE2 or more recent do this? Or is is possible to update the memory in a vertical blanking phase?
I like to work with a screen of 800x480 pixels or maybe 480x272 pixels. I was thinking of buying an off the shelf module from New Haven Display or Matrix Orbital.
Can the EVE be set up in 800x480 x 8bit color such that we can put two full screens in the 1MB RAM?
Thanks,
I like to draw (or copy pixels from a MCU) in a working memory buffer region that is not actively displayed while the LCD controller is displaying another region buffer. I would like to periodically make the LCD controller switch the two memory regions (double buffering)or use some kind of alpha blending visibility to toggle the two regions. Can EVE2 or more recent do this? Or is is possible to update the memory in a vertical blanking phase?
I like to work with a screen of 800x480 pixels or maybe 480x272 pixels. I was thinking of buying an off the shelf module from New Haven Display or Matrix Orbital.
Can the EVE be set up in 800x480 x 8bit color such that we can put two full screens in the 1MB RAM?
Thanks,