can I pipe an image to eips ?

Kindleschokolade · 07-06-2023, 04:08 PM

Hello,
I created a small script that loads an image from a local http server with curl

Code:

curl http://localserver:8808/pic -o /var/tmp/pic.png

and the writes it to screen with eips:

Code:

eips -cfg /var/tmp/pic.png

Is it possible to just pipe the image to eips directly without saving first?

thanks

NiLuJe · 07-06-2023, 04:55 PM

I'm not sure, but you can with FBInk (unless I dreamed about working on that part ;D).

EDIT: Did not dream that one up, yay.

Code:

cat fb.png | fbink -cf -i -
[FBInk] Detected a Kobo Aura H2O (370 => Dahlia @ Mark 5)
[FBInk] Clock tick frequency appears to be 100 Hz
[FBInk] Screen density set to 265 dpi
[FBInk] Variable fb info: 1080x1440, 8bpp @ rotation: 1 (Clockwise, 90°)
[FBInk] Fixed fb info: ID is "mxc_epdc_fb", length of fb mem: 6684672 bytes & line length: 1088 bytes
[FBInk] Canonical rotation: 0 (Upright, 0°)
[FBInk] Enabled Kobo viewport insanity (1080x1440 -> 1080x1429), top-left corner is @ (0, 11)
[FBInk] Fontsize set to 24x24 (IBM base glyph size: 8x8)
[FBInk] Line length: 45 cols, Page size: 59 rows
[FBInk] Horizontal fit is perfect!
[FBInk] Vertical fit isn't perfect, shifting rows down by 7 pixels
[FBInk] Pen colors set to #000000 for the foreground and #FFFFFF for the background
Displaying image '-' @ column 0 + 0px, row 0 + 0px (scaling: 0x0, H align: 0, V align: 0, inverted: N, flattened: N, waveform: AUTO, HW dithering: PASSTHROUGH, SW dithered: N, nightmode: N, skip refresh: N)

Kindleschokolade · 07-08-2023, 11:09 AM

Aha! That nice. Thanks.
A question though: is there a significant performance overhead with fbink?
In the script I am writing the screen needs to get updated every half second and I'd like to make it as efficient as possible.

NiLuJe · 07-09-2023, 11:25 AM

If anything, it's going to be *more* efficient than eips.

If you want to over-optimize the whole thing, don't write it in shell and use the API directly.

Kindleschokolade · 07-10-2023, 11:08 AM

Hm. What Api are you referring to?
Currently I run a python script that does all the work and uses Pip to render all into an image which gets written to screen via a subprocess running eips.

NiLuJe · 07-10-2023, 04:55 PM

FBInk's. Assuming you're using my Python distribution, it ships w/ py-fbink.

Kindleschokolade · 07-13-2023, 07:09 PM

Oh! Nice! Did not notice this so far and used fbink in a shell subprocess.
Will investigate!

07-06-2023, 04:08 PM	#1
Kindleschokolade Connoisseur Posts: 57 Karma: 14 Join Date: Dec 2021 Device: kindle PW3	can I pipe an image to eips ? Hello, I created a small script that loads an image from a local http server with curl Code: curl http://localserver:8808/pic -o /var/tmp/pic.png and the writes it to screen with eips: Code: eips -cfg /var/tmp/pic.png Is it possible to just pipe the image to eips directly without saving first? thanks

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07-08-2023, 11:09 AM	#3
Kindleschokolade Connoisseur Posts: 57 Karma: 14 Join Date: Dec 2021 Device: kindle PW3	Aha! That nice. Thanks. A question though: is there a significant performance overhead with fbink? In the script I am writing the screen needs to get updated every half second and I'd like to make it as efficient as possible.

07-09-2023, 11:25 AM	#4
NiLuJe BLAM! Posts: 13,480 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	If anything, it's going to be more efficient than eips. If you want to over-optimize the whole thing, don't write it in shell and use the API directly.

07-10-2023, 11:08 AM	#5
Kindleschokolade Connoisseur Posts: 57 Karma: 14 Join Date: Dec 2021 Device: kindle PW3	Hm. What Api are you referring to? Currently I run a python script that does all the work and uses Pip to render all into an image which gets written to screen via a subprocess running eips.

07-10-2023, 04:55 PM	#6
NiLuJe BLAM! Posts: 13,480 Karma: 26012494 Join Date: Jun 2010 Location: Paris, France Device: Kindle 2i, 3g, 4, 5w, PW, PW2, PW5; Kobo H2O, Forma, Elipsa, Sage, C2E	FBInk's. Assuming you're using my Python distribution, it ships w/ py-fbink.

07-13-2023, 07:09 PM	#7
Kindleschokolade Connoisseur Posts: 57 Karma: 14 Join Date: Dec 2021 Device: kindle PW3	Oh! Nice! Did not notice this so far and used fbink in a shell subprocess. Will investigate!

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