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Doesn't the UEFI firmware map a GPU framebuffer into the main address space "for free" so you can easily poke raw pixels over the bus? Then again the UEFI FB is
by jsheard 11mo ago
Doesn't the UEFI firmware map a GPU framebuffer into the main address space "for free" so you can easily poke raw pixels over the bus? Then again the UEFI FB is only single-buffered, so if you rely on that in lieu of full-fat GPU drivers then you'd probably want to layer some CPU framebuffers on top anyway.
- the8472 11mo agowell, if you poke framebuffer pixels directly you might as well do scanline racing.
- jsheard 11mo agoAlas, I don't think UEFI exposes vblank/hblank interrupts so you'd just have to YOLO the timing.
- throwaway173738 11mo agoYes if you have UEFI.