1005a27603
The VESA standard does not define any way for software to set a custom video mode, which means normally we would be constrained to whichever modes the video card manufacturer decided to provide. However, since we run the BIOS in an emulated environment, it is possible (and even quite easy) to patch it and inject any video mode we want, provided we know the format to use and where to put the info in. This approach was used in the NewOS VESA driver, as well as in 915resolution (a tool that predates the availability of native drivers for Linux for Intel videocards). Later on it was also used in Chameleon and Clover, bootloaders that are used for hackintoshes (running MacOS on unsupported hardware). This commit implements full support for Intel cards only, AMD and NVidia will be added later (but there is preliminary code to detect them) Change-Id: I2c528ba18b3863f486da694860a10761efcbfb3f Reviewed-on: https://review.haiku-os.org/c/haiku/+/4624 Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org> Reviewed-by: waddlesplash <waddlesplash@gmail.com> |
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