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Author SHA1 Message Date
John Cupitt
ac3d9131ca
Merge pull request #2171 from libvips/add-black-point-compensation 
add support for lcms black point compensation
 2021-04-19 18:53:50 +01:00
John Cupitt
693bc3ccbf
Merge branch 'master' into add-black-point-compensation 2021-04-19 18:53:35 +01:00
John Cupitt
4e28039c02 fix distance 0 save, better error messages 2021-04-19 10:12:28 +01:00
Lovell Fuller
76fa92cd17 CI: ensure brew install as a single line, split into base vs formats 2021-04-18 21:25:34 +01:00
John Cupitt
4cd5da2303 update libnsgif from upstream 2021-04-18 18:58:09 +01:00
John Cupitt
c933f8379d
Merge pull request #2203 from tlsa/update-libnsgif 
Update libnsgif
 2021-04-18 18:42:41 +01:00
John Cupitt
63d2da6a1d note JPEG-XL in README.md 2021-04-18 17:57:09 +01:00
John Cupitt
0cdfb851b9 incorporate comments from @lovell review 2021-04-18 17:53:15 +01:00
Michael Drake
a373fd766e lzw: Always read three bytes on fast path to avoid swtich. 2021-04-18 17:50:42 +01:00
Michael Drake
98e8673dbc lzw: Restrict pointers through code reader. 2021-04-18 17:50:42 +01:00
Michael Drake
71eb67ba7c lzw: Constify table pointers in writer functions. 2021-04-18 17:50:42 +01:00
Michael Drake
020fc32108 gif: Switch complex decoder over to continuous lzw API. 2021-04-18 17:50:42 +01:00
Michael Drake
05fddf49e3 lzw: Direct output into frame data, avoiding stack. 
If the frame is non-interlaced, and has the same rowstride as the
full image, then we can decode lzw directly into the output image.
 2021-04-18 17:50:42 +01:00
Michael Drake
0d394487c1 gif: Handle any uncompressed output before exiting due to error. 2021-04-18 17:50:42 +01:00
Michael Drake
5426e9b81a lzw: Add function for decoding multiple LZW codes at a time. 2021-04-18 17:50:42 +01:00
Michael Drake
ed3363b899 lzw: Add support for resumable output of a single code. 
This allows handling of insufficient output buffer space.
 2021-04-18 17:50:42 +01:00
Michael Drake
abd8619bef lzw: Return output array from decode function instead of init. 2021-04-18 17:50:42 +01:00
Michael Drake
01fde32f99 gif: Frame decoding: Rearrange for readability. 2021-04-18 17:50:42 +01:00
Michael Drake
7426c3d500 gif: Frame decoding: Simplify transparency check. 2021-04-18 17:50:42 +01:00
Michael Drake
663bf07aac lzw: Remove written member from context. 
Not needed now that clear codes are handled normally.
 2021-04-18 17:50:42 +01:00
Michael Drake
64ddf20599 lzw: Adapt main code handling to handle clear codes too. 2021-04-18 17:50:42 +01:00
Michael Drake
367f64c5bc lzw: Output values in picture order. 2021-04-18 17:50:42 +01:00
Michael Drake
06443e64e9 lzw: Store code's value count in table. 2021-04-18 17:50:42 +01:00
Michael Drake
8d8aa0dd46 gif: Split out gif frame data decode. 2021-04-18 17:50:42 +01:00
Michael Drake
c9a639d2bd lzw: Rename a bunch of structures, functions and variables. 
new_code              -> code
    last_value            -> value
    first_value           -> first
    previous_entry        -> extends
    current_entry         -> table_size
    previous_code         -> prev_code
    previous_code_first   -> prev_code_first
    current_code_size     -> code_size
    current_code_size_max -> code_max
    lzw__next_code        -> lzw_read_code
 2021-04-18 17:50:42 +01:00
Michael Drake
26c83999cc lzw: Split out output writing. 2021-04-18 17:50:42 +01:00
Michael Drake
92d53337d8 lzw: Rename minimum_code_size to match what it's called in spec. 2021-04-18 17:50:42 +01:00
Michael Drake
ac2d57c288 lzw: Slight simplification of clear code handling. 2021-04-18 17:50:42 +01:00
Michael Drake
eb07e204e7 lzw: Avoid code size increment check when dictionary is full. 2021-04-18 17:50:42 +01:00
Michael Drake
1714cf6c3a lzw: Split out dictionary augmentation. 2021-04-18 17:50:42 +01:00
Michael Drake
47a441f86b lzw: Create #define for number of dictionary entry slots. 2021-04-18 17:50:42 +01:00
Michael Drake
f66e20e017 lzw: Simplify new code handling. 
The tiny overhead of an extra time through the output loop
is worth the simpler code.
 2021-04-18 17:50:42 +01:00
John Cupitt
b1abb2d824 comment spelling 2021-04-15 12:55:14 +01:00
John Cupitt
2a51cf23a3 better Q computation 
stolen from cjxl.cc
 2021-04-14 17:34:30 +01:00
John Cupitt
c48a82d937 cleanups 2021-04-14 16:39:57 +01:00
John Cupitt
4483a2edbc Merge branch 'master' into add-jxl 2021-04-14 15:08:46 +01:00
John Cupitt
f4046a95f1 more dbg output for jxlsave 2021-04-14 12:50:09 +01:00
John Cupitt
633d35f4ae add Q param to jxl save 
for convenience
 2021-04-14 12:29:38 +01:00
John Cupitt
21c565d5d6 improve comment 2021-04-14 11:32:08 +01:00
John Cupitt
da6fe210b4
Merge pull request #2195 from libvips/text-colour-rendering 
Text colour rendering
 2021-04-13 08:42:14 +01:00
John Cupitt
cc04449dc5 remove extraeous "brew upgrade" 2021-04-12 20:40:00 +01:00
John Cupitt
31fe274626 fix mono rendering 
always render RGBA, then in mono mode just use the alpha
 2021-04-12 17:29:54 +01:00
John Cupitt
b27a10c547 ask brew to update/upgrade 
might help CI failures on macOS
 2021-04-12 16:55:01 +01:00
John Cupitt
b4fe2c7b8b Note pagocairo dep in README 2021-04-12 16:52:14 +01:00
John Cupitt
985a3e2282 reenable fontfile 2021-04-12 15:46:56 +01:00
John Cupitt
f53959b824 switch font rendering to pangocairo 
to make colour font rendering work
 2021-04-12 15:11:18 +01:00
John Cupitt
8412b8233c start adding colour text rendering 
try eg.

	vips text x.png 😀 --rgba --dpi 300

But it's not working :( need to tyweak something else?
 2021-04-12 10:59:50 +01:00
John Cupitt
db22eb4d4f add p3.icm to makefile.am 
and fix make dist
 2021-04-08 10:53:15 +01:00
John Cupitt
a2147d64be
Merge pull request #2190 from lovell/add-icc-profile-p3 
colour: add a fallback for the increasingly-common P3 profile
 2021-04-08 09:42:37 +01:00
Lovell Fuller
d56a47829b colour: add a fallback for the increasingly-common P3 profile 
Uses the CC0-licensed 'magic' compatibility profile from
https://github.com/saucecontrol/Compact-ICC-Profiles#display-p3
 2021-04-07 21:44:33 +01:00