zlacker

[parent] [thread] 3 comments
1. jshear+(OP)[view] [source] 2025-12-06 16:17:35
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.
replies(2): >>the847+14 >>throwa+l5
2. the847+14[view] [source] 2025-12-06 16:48:11
>>jshear+(OP)
well, if you poke framebuffer pixels directly you might as well do scanline racing.
replies(1): >>jshear+R5
3. throwa+l5[view] [source] 2025-12-06 17:01:11
>>jshear+(OP)
Yes if you have UEFI.
◧◩
4. jshear+R5[view] [source] [discussion] 2025-12-06 17:04:52
>>the847+14
Alas, I don't think UEFI exposes vblank/hblank interrupts so you'd just have to YOLO the timing.
[go to top]