b32bc70de7
libnsgif: Update to latest upstream ( #3142 )
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Allows clients to know if the scan encountered a truncated image.
2022-11-05 11:16:23 +00:00
2189e49dc7
Update to latest upstream libnsgif and call nsgif_data_complete ( #3141 )
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* libnsgif: update script: Fix to handle dir with no patches
* libnsgif: Update to latest upstream
Fixes loading of broken gifs with truncated final frame.
* nsgifload: Call nsgif_data_complete after data scan
This allows libnsgif to distinguish between awaiting more
data, and a broken truncated GIF. In the latter case we
can display what we have.
2022-11-05 04:14:45 +00:00
538aa2a841
remove autotools ( #2941 )
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* remove autotools
It seems to all work. I tested with gtk-doc enabled. I probably missed a
few things argh.
* oop, forgot m4/
2022-07-24 11:14:52 +01:00
ae831a145e
Cleanup .gitignore ( #2889 )
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* Cleanup .gitignore
* Re-add `patches` directory to `Makefile.am`
And ensure it's being tracked by git.
2022-06-23 16:36:47 +01:00
d9f31be67d
configure should add meson files to make dist
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add meson.build etc. to EXTRA_DIST
see https://github.com/libvips/libvips/issues/2876
2022-06-20 15:04:33 +01:00
a129476f0f
fix "make dist" ready for 8.13 rc1
2022-06-19 16:20:30 +01:00
7561d4e52c
add libnsgif COPYING
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oops, we were missing the COPYING file
see https://github.com/libvips/libvips/issues/2800
thanks mika-fischer
2022-05-12 09:48:58 +01:00
ceaa2d2096
Update LibNSGIF to latest upstream ( #2791 )
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* libnsgif: Update to latest upstream
* nsgifload: Add palette info to debug output.
2022-05-09 10:20:57 +01:00
0c3092fa94
libnsgif: Update to latest upstream ( #2766 )
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That's great! Thank you for doing this, Michael.
2022-04-15 18:23:56 +01:00
0f30690360
Update to latest libnsgif ( #2747 )
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* libnsgif: Update to latest upstream.
* nsgifload: Update for new pixel format API.
LibNSGIF now lets the client select a pixel colour component
order. We use NSGIF_BITMAP_FMT_R8G8B8A8, which is the same
format LibNSGIF always decoded to.
* nsgifload: Remove loop_count from VERBOSE output.
This was internal state for a nsgif_frame_prepare() managed
animation, but VIPS doesn't use nsgif_frame_prepare(). The
loop_count member has been removed from the public structure.
2022-04-04 13:57:20 +01:00
292ee9a47e
libnsgif: Update to latest upstream. ( #2712 )
2022-03-09 10:13:48 +00:00
5f7c12e474
libnsgif: Update to latest upstream. ( #2706 )
2022-03-04 08:05:36 +00:00
8e9fe72dea
Update libnsgif ( #2699 )
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* libnsgif: Rename upstream README with markdown extension.
* libnsgif: Drop default frame delay patch
* libnsgif: Remove unused utils / log.h header.
* libnsgif: Rename files to match upstream.
* libnsgif: Extend update script to update local README and test/
* libnsgif: Run update script.
* libnsgif: Update buildsystem for renamed files
* nsgifload: Switch to new library header.
* nsgifload: Remove optional and unused bitmap callbacks.
* nsgifload: Update to use new libnsgif API.
2022-03-03 10:02:36 +00:00
b05515b0c5
Update libnsgif from upstream ( #2674 )
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* libnsgif: Remove patch artifact.
* libnsgif: Update from upstream.
2022-02-21 20:07:20 +00:00
02901436d4
Add meson build system ( #2637 )
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Allows to use the Meson build system to build the project.
2022-02-08 15:19:36 +00:00
03a073b68d
set default GIF frame delay to 100ms
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was 1000ms, see https://github.com/libvips/libvips/issues/2582
2021-12-18 18:20:18 +00:00
8c9d899acd
libnsgif: Update to the latest upstream master ( #2547 )
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* libnsgif: Delete patch for read only source data.
The source data is now read only in upstream libnsgif and the code
has changed quite a bit so this does not apply.
* libnsgif: Update to latest upstream master.
* libnsgif: Only one insufficient data return code now.
There is only one code now, for "I need more data".
* libnsgif: Update for renamed structure member.
2021-11-21 10:06:37 +00:00
60bae63644
updale libnsgif from upstream
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seems slightly slower overall
2021-10-07 10:48:12 +01:00
bd8f2de6fd
fix libnsgif build
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"make dist" was picking up .o files in libnsgif/
2021-04-30 14:28:29 +01:00
cc1020ae55
update libnsgif
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for improved lzw decode
2021-04-24 18:57:20 +01:00
83c4e56cfb
fix a crash found by oss-fuzz
2021-04-22 23:02:34 +01:00
d9faf3fe01
Fix autogen warning
2021-04-22 12:02:29 +02:00
4cd5da2303
update libnsgif from upstream
2021-04-18 18:58:09 +01:00
a373fd766e
lzw: Always read three bytes on fast path to avoid swtich.
2021-04-18 17:50:42 +01:00
98e8673dbc
lzw: Restrict pointers through code reader.
2021-04-18 17:50:42 +01:00
71eb67ba7c
lzw: Constify table pointers in writer functions.
2021-04-18 17:50:42 +01:00
020fc32108
gif: Switch complex decoder over to continuous lzw API.
2021-04-18 17:50:42 +01:00
05fddf49e3
lzw: Direct output into frame data, avoiding stack.
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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
0d394487c1
gif: Handle any uncompressed output before exiting due to error.
2021-04-18 17:50:42 +01:00
5426e9b81a
lzw: Add function for decoding multiple LZW codes at a time.
2021-04-18 17:50:42 +01:00
ed3363b899
lzw: Add support for resumable output of a single code.
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This allows handling of insufficient output buffer space.
2021-04-18 17:50:42 +01:00
abd8619bef
lzw: Return output array from decode function instead of init.
2021-04-18 17:50:42 +01:00
01fde32f99
gif: Frame decoding: Rearrange for readability.
2021-04-18 17:50:42 +01:00
7426c3d500
gif: Frame decoding: Simplify transparency check.
2021-04-18 17:50:42 +01:00
663bf07aac
lzw: Remove written member from context.
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Not needed now that clear codes are handled normally.
2021-04-18 17:50:42 +01:00
64ddf20599
lzw: Adapt main code handling to handle clear codes too.
2021-04-18 17:50:42 +01:00
367f64c5bc
lzw: Output values in picture order.
2021-04-18 17:50:42 +01:00
06443e64e9
lzw: Store code's value count in table.
2021-04-18 17:50:42 +01:00
8d8aa0dd46
gif: Split out gif frame data decode.
2021-04-18 17:50:42 +01:00
c9a639d2bd
lzw: Rename a bunch of structures, functions and variables.
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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
26c83999cc
lzw: Split out output writing.
2021-04-18 17:50:42 +01:00
92d53337d8
lzw: Rename minimum_code_size to match what it's called in spec.
2021-04-18 17:50:42 +01:00
ac2d57c288
lzw: Slight simplification of clear code handling.
2021-04-18 17:50:42 +01:00
eb07e204e7
lzw: Avoid code size increment check when dictionary is full.
2021-04-18 17:50:42 +01:00
1714cf6c3a
lzw: Split out dictionary augmentation.
2021-04-18 17:50:42 +01:00
47a441f86b
lzw: Create #define for number of dictionary entry slots.
2021-04-18 17:50:42 +01:00
f66e20e017
lzw: Simplify new code handling.
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The tiny overhead of an extra time through the output loop
is worth the simpler code.
2021-04-18 17:50:42 +01:00
f726edb7f7
remove stray bitmap_create call
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missed this one in the delay gif alloc patch
2021-04-03 12:28:41 +01:00
07e73475c1
make a patch for the libnsgif alloc delay
2021-04-02 12:00:50 +01:00
9bdf5e8cda
try delaying libnsgif alloc until read frame
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gives the caller a chance to detect memory bombs
2021-04-01 12:53:57 +01:00
Michael Drake
John Cupitt
Kleis Auke Wolthuizen
Corentin Noël
Michael Drake