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mirror of https://github.com/wez/wezterm.git synced 2024-12-24 13:52:55 +03:00
wezterm/test-data/kitty-png.py
Wez Furlong 62cc64f293 incomplete, basic implementation of kitty image protocol
This isn't complete; many of the placement options are not supported,
and the status reporting is missing in a number of cases, including
querying/probing, and shared memory objects are not supported yet.

However, this commit is sufficient to allow the kitty-png.py script
(that was copied from
https://sw.kovidgoyal.net/kitty/graphics-protocol/#a-minimal-example)
to render a PNG in the terminal.

This implementation routes the basic image display via the same
code that we use for iterm2 and sixel protocols, but it isn't
sufficient to support the rest of the placement options allowed
by the spec.

Notably, we'll need to add the concept of image placements to
the data model maintained by the terminal state and find a way
to efficiently manage placements both by id and by a viewport
range.

The renderer will need to manage separate quads for placements
and order them by z-index, and adjust the render phases so that
images can appear in the correct plane.

refs: #986
2021-07-28 09:04:52 -07:00

29 lines
780 B
Python
Executable File

#!python3
# This script encodes a PNG file using the kitty image protocol
import sys
from base64 import standard_b64encode
def serialize_gr_command(**cmd):
payload = cmd.pop('payload', None)
cmd = ','.join('{}={}'.format(k, v) for k, v in cmd.items())
ans = []
w = ans.append
w(b'\033_G'), w(cmd.encode('ascii'))
if payload:
w(b';')
w(payload)
w(b'\033\\')
return b''.join(ans)
def write_chunked(**cmd):
data = standard_b64encode(cmd.pop('data'))
while data:
chunk, data = data[:4096], data[4096:]
m = 1 if data else 0
sys.stdout.buffer.write(serialize_gr_command(payload=chunk, m=m, **cmd))
sys.stdout.flush()
cmd.clear()
with open(sys.argv[-1], 'rb') as f:
write_chunked(a='T', f=100, data=f.read())