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Match Kitty image sizing and layer order, preserve trailing backgrounds, and add regression coverage.

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This commit is contained in:
Michael Grant
2026-10-10 17:51:50 +02:00
parent 7576d49578
commit f988a7bc0b
6 changed files with 381 additions and 47 deletions
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50
regress/image-kitty-protocol.sh
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@@ -327,14 +327,52 @@ with tempfile.TemporaryDirectory(prefix='tmux-kitty-protocol-') as tmp:
check('placeholder-erase', virtual + colours + ph + '\033[H\033[2K', '0,0',
text='', render=r'^\s*$')
white_pixel = '/////w=='
check('letterbox', graphics('a=T,q=2,f=32,s=1,v=1,c=2,r=2,C=1', white_pixel),
'0,0', render='▄▄')
check('pillarbox', graphics('a=T,q=2,f=32,s=1,v=1,c=4,r=1,C=1', white_pixel),
'0,0', render=(r'^(?:\x1b\[[0-9;]+m)* '
r'(?:\x1b\[[0-9;]+m)*\x1b\[48;2;255;255;255m {2}'))
# Ordinary placements stretch; placeholders retain aspect ratio.
check('stretch-tall', graphics('a=T,q=2,f=32,s=1,v=1,c=2,r=2,C=1',
white_pixel),
'0,0', render=r'48;2;255;255;255m {2}')
check('stretch-wide', graphics('a=T,q=2,f=32,s=1,v=1,c=4,r=1,C=1',
white_pixel),
'0,0', render=r'48;2;255;255;255m {4}')
check('stretch-crop', graphics('a=T,q=2,f=32,s=24,v=32,x=4,y=8,w=8,h=8,'
'c=2,r=2,C=1', white),
'0,0', render=r'48;2;255;255;255m {2}')
check('virtual-letterbox', graphics('a=T,q=2,U=1,i=7,p=1,f=32,s=1,v=1,'
'c=2,r=2', white_pixel) + colours +
ph + '\u0305\u0305' + ph + '\u0305\u030d',
'2,0', render='▄▄')
check('virtual-pillarbox', graphics('a=T,q=2,U=1,i=7,p=1,f=32,s=1,v=1,'
'c=4,r=1', white_pixel) + colours +
ph + '\u0305\u0305' + ph + '\u0305\u030d',
'2,0', render=(r'^(?:\x1b\[[0-9;]+m)* '
r'(?:\x1b\[[0-9;]+m)*\x1b\[48;2;255;255;255m '))
# Equal-z images follow source creation order, even with descending IDs.
older = graphics('a=t,q=2,i=200,f=32,s=1,v=1', pixel)
newer = graphics('a=t,q=2,i=100,f=32,s=1,v=1', white_pixel)
put_older = graphics('a=p,q=2,C=1,i=200,c=1,r=1')
put_newer = graphics('a=p,q=2,C=1,i=100,c=1,r=1')
check('same-z-descending-ids', older + newer + put_older + put_newer,
'0,0', render=r'48;2;255;255;255m ')
check('same-z-reversed-placements',
older + newer + put_newer + put_older,
'0,0', render=r'48;2;255;255;255m ')
check('same-z-retransmit',
older + newer + put_newer + older + put_older,
'0,0', render=r'48;2;255;255;255m ')
check('same-z-recreate', older + newer + put_newer +
graphics('a=d,d=I,q=2,i=200') + older + put_older,
'0,0', render=r'48;2;255;0;0m ')
# An empty line tail must not discard the preceding background run.
background = '\033[11GX\033[17G\033[42m \033[0m'
check('background-tail', background, '20,0', render=r'42m {4}')
check('background-tail-image',
graphics('a=T,q=2,C=1,f=32,s=1,v=1,c=20,r=1,z=-1073741825',
white_pixel) +
background, '20,0', render=r'42m {4}')
offset_source = base64.b64encode(b'\xff' * (8 * 32 * 4)).decode()
check('scaled-offset', graphics('a=T,q=2,f=32,s=8,v=32,c=1,r=1,X=4,C=1',
offset_source), '0,0', render=r'12[78];12[78];12[78]m')
offset_source),
'0,0', render=r'191;191;191m')
square = base64.b64encode(b'\xff' * (8 * 8 * 4)).decode()
check('vertical-offset', graphics('a=T,q=2,f=32,s=8,v=8,c=1,r=1,Y=8,C=1',
square), '0,0', render='▄')