feature: 提升一下远程加载显示图片的性能

[allenliuvip]

Did you check the docs?

• I have read all the snacks.nvim docs

Is your feature request related to a problem? Please describe.

您好，我用kitty 远程到远程服务在，在服务器上使用nvim 加载显示图片，图片大的时候加载非常慢，但是同样环境下yazi加载图片非常快，可以帮忙提升一下远程加载显示图片的性能吗
I connect to a remote server via Kitty SSH and use the snacks image to display images. I’ve found that large images fail to load or take an extremely long time to load. However, under the same conditions, Yazi loads images very smoothly. Could you help improve the performance of remote image display?

Describe the solution you'd like

同样环境下yazi加载图片非常快

Describe alternatives you've considered

I connect to a remote server via Kitty SSH and use the snacks image to display images. I’ve found that large images fail to load or take an extremely long time to load. However, under the same conditions, Yazi loads images very smoothly. Could you help improve the performance of remote image display?

Additional context

No response

[drowning-cat]

From #2764 (comment):

It seems snacks.nvim doesn't compress/downscale images before sending (not sure), unlike yazi. The main problem I see here is compatibility, since images should be modified before being sent via SSH, as it's not always possible to install software on external computers. So let's wait for someone who actually uses this module and doesn't have a "skill issue" to help solve your problem.

snacks.nvim/lua/snacks/image/image.lua

Lines 153 to 157 in 9912042

	-- remote image
	local fd = assert(io.open(self.file, "rb"), "Failed to open file: " .. self.file)
	local data = fd:read("*a")
	fd:close()
	data = Snacks.util.base64(data) -- encode the data

From https://yazi-rs.github.io/blog/why-is-yazi-fast:

Image: To accelerate image previews, Yazi uses a 2-pass process for image files. The first pass is preprocessing, which downscales the image based on user-set max_width/max_height and generates a compressed lossy image as a cache file, significantly reducing file size. The second pass occurs when the user actually switches to the file and downscales it again to fit the terminal size.