Thread (3 messages) flat view 3 messages, 2 authors, 2024-03-16

Re: [PATCH] fbcon: Increase maximum font width x height to 64 x 64

From: Samuel Thibault <samuel.thibault@ens-lyon.org>
Date: 2024-03-16 00:12:54
Also in: dri-devel, lkml

Hello,

Helge Deller, le ven. 15 mars 2024 10:35:40 +0100, a ecrit:
You should have marked this patch with "v2"...
The actual changes were exactly the same.
On 3/13/24 17:59, Samuel Thibault wrote:
quoted
This remains relatively simple by just enlarging integers.
I like the patch, but I still see some u32...
drivers/video/fbdev/vt8623fb.c:         info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0);
drivers/video/fbdev/arkfb.c:            info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0);
drivers/video/fbdev/core/fbmem.c:               fb_info->pixmap.blit_x = ~(u32)0;
drivers/video/fbdev/s3fb.c:             info->pixmap.blit_x = (bpp == 4) ? (1 << (8 - 1)) : (~(u32)0);
Oops, I missed including these modifications indeed.
quoted
It wouldn't be that simple to get to the console's 64x128 maximum, as it would
require 128b integers.
How realistic are fonts > 64x64 pixels ?
With 4K displays, 64x128 brings 60x16 text console, which is useful for
people with low vision.
If they are, using the bitmap_xx functions (include/linux/bitmap.h)
now instead would be better.
Ok, I have now done this in v2. We'll be able to easily increase the
font size when 8K displays get out :)

Samuel
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