Tom Li <biergaizi2009@xxxxxxxxx> writes: > So I just stuck at here. Is there a standard way to just let > userspace/DDX to access the 2D drawing processor by the exported > interface or DRI/DRM layer? The Intel UXA driver uses the 2D engine for simple X acceleration through the kernel DRI/GEM interfaces. The portion of that interface designed to support accelerated graphics operations is entirely GPU-specific, so you would design that based on how your card works, and the resulting 2D driver would be chipset specific as well, using the custom kernel interfaces you create. -- keith.packard@xxxxxxxxx
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