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the imlib2 based multi-frame loader has not respected -A setting
since it's introduction in commit 76c2b81b.
also change multi.framedelay to `int` to avoid signedness change
warning.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/503
Reviewed-by: eylles <eylles@noreply.codeberg.org>
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When rotating a partially shown image (i.e. image size * zoom >
window size) the image is panned to top or left (if `win->w` or
`win->h` is greatest, respectively). Seems to be due to
unsignedness of `win->[wh]`, when taking the difference between
them in `img_rotate` either `img->[xy]` ends up being close to
`UINT_MAX` and the image is panned to top or left edge.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/493
Reviewed-by: NRK <nrk@disroot.org>
Co-authored-by: e5150 <e5150@noreply.codeberg.org>
Co-committed-by: e5150 <e5150@noreply.codeberg.org>
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no longer needs to be a separate function now that the legacy loaders
are removed.
also remove a NOLINT comment and use `(void)var` to silence warning.
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this removes the legacy gif and webp loaders. moving forward
multi-frame/animated images will be loaded by imlib2 itself.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/397
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currently the logic of when to open/close script is scattered around the
entire code-base which is both ugly and error-prone.
this patch centralizes script handling by remembering the relevant
information on each redraw and then comparing it with the previous
information to figure out whether something changed or not.
this also fixes a bug where scripts weren't being called in thumbnail
mode when mouse was used for selecting a different image.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/475
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/477
Reviewed-by: eylles <eylles@noreply.codeberg.org>
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4b67816 only partially fixed this issue. because imlib2's cache may not
have sub-second granularity, there still exists a time-frame while the
`mtime` has not yet been updated but we might be trying to reload the
image due to receiving an inotify event in which case imlib2 will end up
giving us the old frame.
imlib2 v1.12.0 adds a function that allows us to decache any frames
associated with a filename. this allows us to invalidate the cache
manually instead of relying on `mtime`.
but if that's not available due to older imlib2, then forcefully reload
the raw frames and decache them. this has the unfortunate cost that if
`mtime` *was* updated properly then we'll end up loading that image
twice.
fixes: https://codeberg.org/nsxiv/nsxiv/issues/456
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this removes some repetitive code.
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these assertions did not hold true in practice when the underlying file
ends up changing during load.
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currently the autoreload feature of nsxiv is a bit unreliable because we
try to load at the very first event we received. however, the writer
might not be done writing and so we might try to load a truncated image
(and fail).
in the following ascii diagram, function S represents sleep and `+` sign
represents writes by the writer. because we set the sleep (of 10ms) at
the first event, subsequent writes by the writer doesn't influence our
reload logic:
S(10) load()
nsxiv | |
writer + + + + (done)
time(ms): 00 05 10 15
after this patch, (assuming function T (re)sets a timeout), we will keep
(re)setting a timeout on new events giving the writer more time to
finish:
T(10) T(10) T(10) T(10) load()
nsxiv | | | | |
writer + + + + (done)
time(ms): 00 05 10 15 20 25
while this patch makes things significantly more robust, the problem
here is inherently unsolvable since there's no way to tell whether the
writer is done writing or not.
for example, if user does something like `curl 'some.png' > test.png`
then curl might stop for a second or two in the middle of writing due to
internet issues - which will make nsxiv drop the image.
this patch also increases the autoreload delay from 10ms to now 128ms
instead to decrease chances of false failures.
ref: https://github.com/0ion9/sxiv/commit/6ae2df6ed549c2cc119bd7d235b75154fc042d2d
partially-fixes: https://codeberg.org/nsxiv/nsxiv/issues/456
commit-message-by: NRK
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/459
Reviewed-by: eylles <eylles@noreply.codeberg.org>
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these document improvements and/or removal of unnecessary code for when
we will require a higher minimum version of Imlib2.
all the comments have been prefixed with "UPGRADE: " for easy grepping.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/457
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
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a lot of application which allow selecting features at build time seem
to output the build config with `--version` or similar (e.g ffmpeg).
aside from giving the user information about the feature set the binary
was compiled with (in case the user didn't compile it themselves, e.g on
a binary distro) it can also (possibly) help when submitting bug
reports.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/462
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
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gif spec [0] doesn't mention what to do when "Delay Time" is 0.
apng spec [1] states:
| If the the value of the numerator is 0 the decoder should render the
| next frame as quickly as possible, though viewers may impose a
| reasonable lower bound.
webp spec [2]:
| the interpretation of frame duration of 0 (and often <= 10) is
| implementation defined.
so it seems that it's safe to set a default delay for 0 delay frames,
which is what the older gif and webp loaders were already doing. do the
same for the imlib2 multi-frame loader as well.
[0]: https://www.w3.org/Graphics/GIF/spec-gif89a.txt
[1]: https://wiki.mozilla.org/APNG_Specification
[2]: https://developers.google.com/speed/webp/docs/riff_container#animation
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/445
Reviewed-by: eylles <eylles@noreply.codeberg.org>
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the multiframe loaders sets the color modifier to NULL but doesn't
restore it before returning. this results in a imlib2 developer warning
if you try to change brightness/contrast on a multiframe image (which
doesn't have alpha).
ensure that the color modifier is restored before returning under all
paths.
Reported-by: Madhu
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/440
Reviewed-by: eylles <eylles@noreply.codeberg.org>
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by default imlib2 doesn't check the file's timestamp to avoid disk
activity when loading from cache. however, this ends up breaking our
autoreload functionality on multi-frame images.
the reason why single frame images weren't broken was because
`img_load()` calls `imlib_image_set_changes_on_disk()`, which tells
imlib2 to check the timestamp before loading from cache.
do the same thing for the multi-frame loader as well.
additionally add a comment to img_load() explaining what's going on.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/436
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/437
Reviewed-by: eylles <eylles@noreply.codeberg.org>
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minus the bogus changes
Co-authored-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
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Co-authored-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
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now that we have long-opts, we don't have to worry about exhausting the
alphabet list for short-opts. so adding a cli flag to set/unset the
checker background makes sense.
ref: https://codeberg.org/nsxiv/nsxiv/issues/404
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this will be a massive change compared to the usual stuff. however the
gains will be worth it:
* we gain lots of additional animated image support.
* and we'll gain _even_ more format support as imlib2 adds them, without needing
any change in our code-base.
* about ~300 LoC will be purged once we remove our internal gif and webp loader.
as for when to remove the internal loaders, a good time might be when debian
upgrades their imlib2, currently it seems to be at v1.7.5, which doesn't support
animated images.
as of now, nsxiv will continue to build with the internal gif/webp loaders
(assuming they were enabled in config.mk) if imlib2 version is below 1.8.0 and
will print out a deprecation notice.
and if imlib2 version supports multi-frame then it will simply ignore the
internal loaders and use the imlib2 one.
in other words, users shouldn't need to do anything on their side. everything
that previously functioned will continue to function regardless of the user's
imlib2 version (though they might see the annoying deprecation notice if the
imlib2 version doesn't support multi-frame images).
known issue:
* image loading performance can be noticeably worse in
imlib2 versions below 1.9.0
Closes: https://codeberg.org/nsxiv/nsxiv/issues/301
Closes: https://codeberg.org/nsxiv/nsxiv/issues/300
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/373
Reviewed-by: TAAPArthur <taaparthur@noreply.codeberg.org>
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* Imlib2 supports modifying gamma, brightness and contrast directly
while sxiv only supports gamma. Makes sense to extend it to brightness
and contrast as well.
* Since color corrections need to be aware of each other, they have been
refactored into one centralized function.
* This also makes the code more hackable as it makes it easier to add
more color correction functions without them interfering with each
other.
Co-authored-by: 0ion9 <finticemo@gmail.com>
Co-authored-by: NRK <nrk@disroot.org>
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/396
Reviewed-by: NRK <nrk@disroot.org>
Reviewed-by: TAAPArthur <taaparthur@noreply.codeberg.org>
Co-authored-by: Berke Kocaoğlu <kberke@metu.edu.tr>
Co-committed-by: Berke Kocaoğlu <kberke@metu.edu.tr>
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the length member needed to be zero-ed before we started decoding.
this was causing unintended behavior of playing an animated webp longer
than it should under slideshow mode.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/381
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
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the way `imlib_load_image()` works, is that it only does a lightweight
signature/metadata check. it doesn't actually decode the image. which
means that a file that has valid metadata but invalid content would get
loaded successfully.
`imlib_image_get_data_for_reading_only()` basically forces imlib to
decode the data, and thus reveal any malformed images so we can reject
it (see commit f0266187).
however, this is a spurious way of achieving the goal at hand. imlib2
already offers an `_immediately` variant which decodes the data
immediately. so just use that instead of spuriously using the "get_data"
function to force a decode.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/380
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
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* ensure static variables comes after non-static ones
* remove depreciated DATA32 type
* prefer `sizeof(expression)` over `sizeof(Type)`.
* silence a -Wsign warning
* {gif,webp} loader: use a pointer to reduce code-noise
* gif loader: allocate in one place
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/374
Reviewed-by: TAAPArthur <taaparthur@noreply.codeberg.org>
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simply running nsxiv with `--anti-alias` will enable anti-aliasing, and
running it with `--anti-alias=no` will disable it.
the cli flag will overwrite the config.h default.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/349
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The suckless coding style [^0] and the linux coding style [^1] both
recommends not indenting switch cases. And it helps out people with
lower resolution monitors.
[^0]: https://suckless.org/coding_style/
[^1]: https://www.kernel.org/doc/html/v5.10/process/coding-style.html#indentation
Co-authored-by: explosion-mental <explosion0mental@gmail.com>
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/358
Reviewed-by: NRK <nrk@disroot.org>
Co-authored-by: explosion-mental <explosion-mental@noreply.codeberg.org>
Co-committed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
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_SC_PHYS_PAGES isn't POSIX and might not be defined. in such case, just
return back `CACHE_SIZE_FALLBACK`.
NOTE: POSIX says the `names` in `sysconf()` are "symbolic constants" not
necessarily macros. So we might end up returning the fallback in some
cases where `_SC_PHYS_PAGES` *was* available, but not defined as a
macro. which is not ideal, but nothing fatal.
in practice, this shouldn't be an issue since most systems seems to
define them to be macros, i've checked Glibc, Musl, OpenBSD, FreeBSD and
Haiku.
also add a (useful) comment on `config.h` describing the effect higher
cache size has.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/354
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mixing signed and unsigned types in comparison can end up having
unintended results. for example:
if (-1 < 1U)
printf("true\n");
else
printf("false\n");
previously we silenced these warnings, instead just fix them properly
via necessary casting, and in cases where the value cannot be negative
(e.g width/height members) make them unsigned.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/336
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
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the following combination currently fails to build:
$ make HAVE_LIBFONTS=0 HAVE_LIBWEBP=1
this is probably because one of the font library was including <stdio.h>
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/337
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
Reviewed-by: TAAPArthur <taaparthur@noreply.codeberg.org>
Co-authored-by: NRK <nrk@disroot.org>
Co-committed-by: NRK <nrk@disroot.org>
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* rm unused include <sys/types.h>
* move <sys/time.h> to main.c, it's the only file that needs it.
* move TV_* macros to main.c
* let *.c files explicitly include what they need instead of including
them at nsxiv.h
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the warnings on r_readdir(), img_load_gif() and strcpy seems to be false
positives. the warning about fmt being unused is valid, but not worth
fixing with additional #ifdef guards.
use `assert` to silence the false positive cases when possible,
otherwise use a NOLINT comment with an explanation.
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identifiers beginning with an underscore is reserved by the C standard.
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rather than calling the script unconditionally per redraw, we now have
a `title_dirty` flag and keep track of when any of the relavent
information changes.
Co-authored-by: Arthur Williams <taaparthur@gmail.com>
Partially fixes: https://github.com/nsxiv/nsxiv/issues/258
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also change the condition inside img_frame_animate() to check for
positive value rather than comparing against 0.
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...simply print an error msg and try (slower) fallback.
also adds a useful comment explaining why we're doing manual blending.
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Closes: https://github.com/nsxiv/nsxiv/issues/230
Co-authored-by: mamg22 <45301823+mamg22@users.noreply.github.com>
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There are keybinds for scrolling to the edges of an image but there's no way back to the center. This is particularly annoying while zooming.
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fixes all -Wshadow related warnings (on gcc). this would allow us to use
`-Wshadow` in github workflow (https://github.com/nsxiv/nsxiv/pull/195).
i've thought about adding `-Wshadow` to our Makefile as well, but
decided against it to keep the Makefile CFLAGS barebore/minimal.
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since Imlib2 v1.7.5, it is capable of parsing exif data on jpeg files
and auto orienting them. this caused nsxiv to rotate the image twice.
Closes: https://github.com/nsxiv/nsxiv/issues/187
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The problem:
1. For the most people imlib2's default 4MiB is unreasonably low;
2. Hardcoding cache size to ~256MiB has performance benefits and doesn't
increase RAM usage too much on relatively modern systems;
3. But we can't do that, because that would be detrimental to low spec systems
that (apparently) not (?) building nsxiv from source, as been discussed
#171
Solution:
Calculate cache size based on total memory.
Default is set as 3%, which means:
* ~245MiB for 8GiB
* ~30MiB for 1GiB
* and so on
CACHE_SIZE_LIMIT (256MiB by default) sets the highest possible value. And in
case we cannot determine the total memory (e.g since _SC_PHYS_PAGES isn't
POSIX) use CACHE_SIZE_FALLBACK (32MiB by default) instead.
Co-authored-by: NRK <nrk@disroot.org>
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C89 standard specifies:
If ptr is a null pointer, the realloc function behaves like the malloc
function for the specified size.
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now that imlib2 (v1.7.5) is able to load the first frame of an
animated-webp file, we no longer need the `is_webp` check to bypass
imlib2.
ref: https://phab.enlightenment.org/T8964
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* fix compile error
* use variable instead of macro
* Revert "use variable instead of macro"
This reverts commit a14ef0b231c50e49906761010a4d4231ce4e3e36.
* use local variable instead of macro
* Revert "use local variable instead of macro"
This reverts commit 7e049d55d94f5c003d90e1a10187356f6a7f54b2.
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this still keeps the shorter zoom logic, but adds back the zoom_levels
array so that stay close to sxiv.
for users who would like to have the zoom step behavior see:
https://github.com/nsxiv/nsxiv/pull/156#issuecomment-975182631
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