Blasting Pixels to #PinePhone Framebuffer ... On Apache #NuttX RTOS

Article: https://lupyuen.github.io/articles/fb?3#render-grey-screen

#PinePhone pixels are in 32-bit ARGB 8888 format

Article: https://lupyuen.github.io/articles/fb?3#render-grey-screen

Let's render some Colour Blocks in our #NuttX Framebuffer for #PinePhone

Article: https://lupyuen.github.io/articles/fb?4#render-blocks

Rendering graphics with #LVGL on #PinePhone ... With Apache #NuttX RTOS

Article: https://lupyuen.github.io/articles/fb?7#lvgl-graphics-library

What's inside our #NuttX Framebuffer Driver for #PinePhone

Article: https://lupyuen.github.io/articles/fb?8#pinephone-framebuffer-driver

Our #NuttX Framebuffer for #PinePhone supports these operations

Article: https://lupyuen.github.io/articles/fb?10#framebuffer-operations

#PinePhone Pixels mysteriously missing on #NuttX RTOS ... But we have a temp workaround

Article: https://lupyuen.github.io/articles/fb?11#mystery-of-the-missing-pixels

Temp Fix for missing #PinePhone Pixels on #NuttX: Copy the RAM Framebuffer to itself ... Perm Fix: Flush the CPU Cache

Article: https://lupyuen.github.io/articles/fb?12#fix-missing-pixels

Up Next: Apache #NuttX Touch Panel Driver for #PinePhone

Article: https://lupyuen.github.io/articles/fb?15#whats-next

Here's how Apache #NuttX Apps will render graphics on #PinePhone @PINE64 ... By calling the new Framebuffer Driver for PinePhone

https://lupyuen.github.io/articles/fb

@lupyuen ARGB? How do you display an alpha on a non transparent screen? Or does the alpha channel refer to brightness or something like that?

@Blort Alpha has no effect since we have a single layer right now. Later we'll support overlays, which will work with Alpha Blending