Norman Feske db2f1e542c decorator: double-buffered output
This patch ensures that the displayed pixel buffer is always consistent
by applying intermediate drawing steps on an invisible back buffer,
which is blitted to the front buffer by the GUI server.

Note that the addition of the back buffer increases the decorator's RAM
demand by 4*w*h (4 bytes per pixel) whereas w and h are the screen size.

Issue #5350
2024-10-08 09:09:23 +02:00
..
2024-10-08 09:09:23 +02:00