Boot menu: clarify variable usage

The video mode hook gets passed a menu and an item, but is actually
interested in the submenu pointed by the item and the items inside that.

Don't reuse the passed parameters and instead declare new local
variables.

Change-Id: Id17adde552fac2c248afa78380ff299fb21bc968
Reviewed-on: https://review.haiku-os.org/c/1693
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

Use fast clearing of visible screen for splash

memset uses rep stosb on x86 during boot, with memory
not set to write-combining, which makes it slow.

Instead we do aligned writes of 2 x four bytes at once.
Only clear the minimum of size and width * height * 4
UEFI framebuffer size can be huge, upto 512MB here,
and rep stosb seems to be around 25-30MB/s

This is written as generic as possible to work on
old compilers and different platforms, without
expecting boot memset to be optimized.

This makes it almost unnoticable compared to not
clearing.

Don't clear video mem on UEFI, efi video mode refactor

Writes to videomem is slow without memory remapping
Can't do the mapping without leaving UEFI, so skipping
the clear. Afaict it should always be cleared by UEFI

This saves ~10 seconds of booting on my machine
(1920*1080*4 bytes)

EFI video mode (should have been it's own commit)
* Only do strcmp if there are enough params
* break when found

M68K: Only enumerate ST modes as fallback.

Add support for enumerating video modes using the Milan API and the ST/TT XBIOS calls. Not really tested, ARAnyM doesn't emulate the Milan stuff, and the ST resolutions aren't exactly chunky anyway (will need patching the framebuffer kernel args to include the mode/4CC instead of just bit depth).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42640 a95241bf-73f2-0310-859d-f6bbb57e9c96

Update copyrights.
Btw Axel, keyboard.cpp (forked from the bios_ia32 one) is still under "OpenBeOS licence" with 2 other copies, I suppose you are ok to change to MIT ?


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39548 a95241bf-73f2-0310-859d-f6bbb57e9c96

Cleanup. Try to exit ARAnyM from platform_exit().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39547 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add some more Falcon video modes. Use VsetRGB() to set 8bit palette, though it's not really useful yet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39544 a95241bf-73f2-0310-859d-f6bbb57e9c96

Native Falcon video modes support, including truecolor (16bpp chunky) which we can use for the boot splash. Some debugging code left to cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39533 a95241bf-73f2-0310-859d-f6bbb57e9c96

Some support for video initialization using natfeat fVDI, but sadly it seems to return NULL for the framebuffer so it's not usable.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39506 a95241bf-73f2-0310-859d-f6bbb57e9c96

Start of boot video mode support. Not finished.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26749 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Cleanup
- rewrote early_query() to use the TT0 mapping to remove the page_hole stuff.
- fixed natfeat, using a page set up from the bootloader for now as it wants physical address. At least it's enough to see from the debugger:
load kernel...
kernel entry at 8003711a
Welcome to kernel debugger output!
Haiku revision: 26582
PANIC: unknown cpu_type 68040

Welcome to Kernel Debugging Land...
Running on CPU 0
kdebug>


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26599 a95241bf-73f2-0310-859d-f6bbb57e9c96

No images yet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23364 a95241bf-73f2-0310-859d-f6bbb57e9c96

Video mode menu and support stubs.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23363 a95241bf-73f2-0310-859d-f6bbb57e9c96

M68K: Only enumerate ST modes as fallback.

Add support for enumerating video modes using the Milan API and the ST/TT XBIOS calls. Not really tested, ARAnyM doesn't emulate the Milan stuff, and the ST resolutions aren't exactly chunky anyway (will need patching the framebuffer kernel args to include the mode/4CC instead of just bit depth).


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42640 a95241bf-73f2-0310-859d-f6bbb57e9c96

Update copyrights.
Btw Axel, keyboard.cpp (forked from the bios_ia32 one) is still under "OpenBeOS licence" with 2 other copies, I suppose you are ok to change to MIT ?


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39548 a95241bf-73f2-0310-859d-f6bbb57e9c96

Cleanup. Try to exit ARAnyM from platform_exit().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39547 a95241bf-73f2-0310-859d-f6bbb57e9c96

Add some more Falcon video modes. Use VsetRGB() to set 8bit palette, though it's not really useful yet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39544 a95241bf-73f2-0310-859d-f6bbb57e9c96

Native Falcon video modes support, including truecolor (16bpp chunky) which we can use for the boot splash. Some debugging code left to cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39533 a95241bf-73f2-0310-859d-f6bbb57e9c96

Some support for video initialization using natfeat fVDI, but sadly it seems to return NULL for the framebuffer so it's not usable.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39506 a95241bf-73f2-0310-859d-f6bbb57e9c96

Start of boot video mode support. Not finished.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26749 a95241bf-73f2-0310-859d-f6bbb57e9c96

- Cleanup
- rewrote early_query() to use the TT0 mapping to remove the page_hole stuff.
- fixed natfeat, using a page set up from the bootloader for now as it wants physical address. At least it's enough to see from the debugger:
load kernel...
kernel entry at 8003711a
Welcome to kernel debugger output!
Haiku revision: 26582
PANIC: unknown cpu_type 68040

Welcome to Kernel Debugging Land...
Running on CPU 0
kdebug>


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26599 a95241bf-73f2-0310-859d-f6bbb57e9c96

No images yet.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23364 a95241bf-73f2-0310-859d-f6bbb57e9c96

Video mode menu and support stubs.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23363 a95241bf-73f2-0310-859d-f6bbb57e9c96