App:Library:LVGL:docs:Porting:Add custom GPU

https://docs.lvgl.io/8.2/porting/gpu.html

Add custom GPU

LVGL has a flexible and extendable draw pipeline.

You can hook it to do some rendering with a GPU or even completely replace the built-in software renderer.

Draw context

The core structure of drawing is lv_draw_ctx_t. It contains a pointer to a buffer where drawing should happen and a couple of callbacks to draw rectangles, texts, and other primitives.

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