Commit Graph

238 Commits

Author SHA1 Message Date
Andrew Murray
3b62151215 Changed example function name to match use in code [ci skip] 2020-05-17 16:05:54 +10:00
Andrew Murray
67d26ed051 Use _accept function in example plugin [ci skip] 2020-05-17 09:24:06 +10:00
Hugo
94c7af7596 Replace spaces with tabs and add to pre-commit linting 2020-05-01 21:23:39 +03:00
Hugo
dda6145fce Since Python 3.3 IOError and WindowsError have been merged into OSError 2020-04-10 12:57:29 +03:00
Andrew Murray
9f61be4c72
Merge branch 'master' into apng 2020-03-09 23:29:40 +11:00
Andrew Murray
e41cfade29 Add JPEG comment to info dictionary 2020-03-07 06:57:29 +11:00
Hugo van Kemenade
0f7ed2d35f
Merge pull request #4435 from radarhere/close_images
Close exclusively opened images
2020-03-06 00:27:46 +02:00
Hugo van Kemenade
64a9e0c660
Merge branch 'master' into apng 2020-02-29 17:40:17 +02:00
Andrew Murray
04f7c75466 Use context manager when opening images [ci skip] 2020-02-29 10:29:44 +11:00
Peter Rowlands
9b72f0513c Adjust is_animated behavior
- Make is_animated APNG behavior consistent with other Pillow formats
- is_animated will be true when n_frames is greater than 1 (for APNG
  this depends on animation frame count + presence or absence of a
  default image)
2020-02-23 15:14:06 +11:00
Peter Rowlands
dcc3f41fa1 Add release notes 2020-02-23 15:14:06 +11:00
Peter Rowlands
3a254701f6 Cleanup documentation
- Add changes requested by hugovk
2020-02-23 15:14:06 +11:00
Peter Rowlands (변기호)
0b536fb599 fix documentation review issue
[ci skip]

Co-Authored-By: Andrew Murray <3112309+radarhere@users.noreply.github.com>
2020-02-23 15:14:06 +11:00
Peter Rowlands
916b2e1b74 Document APNG support 2020-02-23 15:14:06 +11:00
Andrew Murray
a8c0794107 Allow saving of zero quality JPEG images 2020-02-21 22:05:44 +11:00
Andrew Murray
8e7010d9ae Changed example plugin to work in Python 3 [ci skip] 2020-02-09 15:34:14 +11:00
Andrew Murray
db970acfa5 Grammar fix [ci skip] 2020-02-06 20:10:34 +11:00
Andrew Murray
1f58028173 Use BytesIO instead of StringIO [ci skip] 2020-01-21 23:21:57 +11:00
Andrew Murray
feec1bbcb2 Updated WMF documentation [ci skip] 2019-12-30 10:12:37 +11:00
Hugo
7b4ae104f0 Fix malformed table 2019-12-16 15:07:56 +02:00
Hugo
cc63f66575 Merge remote-tracking branch 'upstream/master' into rm-2.7 2019-11-01 13:22:56 +02:00
Jon Dufresne
4cd4adddc3 Improve handling of file resources
Follow Python's file object semantics. User code is responsible for
closing resources (usually through a context manager) in a deterministic
way.

To achieve this, remove __del__ functions. These functions used to
closed open file handlers in an attempt to silence Python
ResourceWarnings. However, using __del__ has the following drawbacks:

- __del__ isn't called until the object's reference count reaches 0.
  Therefore, resource handlers remain open or in use longer than
  necessary.

- The __del__ method isn't guaranteed to execute on system exit. See the
  Python documentation:

  https://docs.python.org/3/reference/datamodel.html#object.__del__

  > It is not guaranteed that __del__() methods are called for objects
  > that still exist when the interpreter exits.

- Exceptions that occur inside __del__ are ignored instead of raised.
  This has the potential of hiding bugs. This is also in the Python
  documentation:

  > Warning: Due to the precarious circumstances under which __del__()
  > methods are invoked, exceptions that occur during their execution
  > are ignored, and a warning is printed to sys.stderr instead.

Instead, always close resource handlers when they are no longer in use.
This will close the file handler at a specified point in the user's code
and not wait until the interpreter chooses to. It is always guaranteed
to run. And, if an exception occurs while closing the file handler, the
bug will not be ignored.

Now, when code receives a ResourceWarning, it will highlight an area
that is mishandling resources. It should not simply be silenced, but
fixed by closing resources with a context manager.

All warnings that were emitted during tests have been cleaned up. To
enable warnings, I passed the `-Wa` CLI option to Python. This exposed
some mishandling of resources in ImageFile.__init__() and
SpiderImagePlugin.loadImageSeries(), they too were fixed.
2019-10-12 08:27:17 -07:00
Andrew Murray
4140cd807b
Merge branch 'master' into rm-2.7 2019-10-12 18:03:58 +11:00
Andrew Murray
a8c07e3d5f Added orientation note [ci skip] 2019-10-11 22:40:31 +11:00
Hugo
0caa48b179 Remove redundant __future__ from docs
Co-Authored-By: Jon Dufresne <jon.dufresne@gmail.com>
2019-10-08 17:26:11 +03:00
Andrew Murray
ecb3a30487 Clarified documentation [ci skip] 2019-10-06 13:52:58 +11:00
Hugo
f792ab6c02 RST uses double backticks for code (MD uses 1) 2019-09-13 08:56:33 +03:00
Andrew Murray
5ad5be4a32 Reference Pillow not PIL [ci skip] 2019-09-06 06:13:12 +10:00
Andrew Murray
51457311de
Reference Pillow not PIL [ci skip]
Co-Authored-By: Hugo van Kemenade <hugovk@users.noreply.github.com>
2019-09-06 06:10:40 +10:00
Andrew Murray
2a7ad14172 Added more limited support modes [ci skip] 2019-09-05 20:10:43 +10:00
Andrew Murray
0527efd593 Corrected documentation of TIFF saving arguments [ci skip] 2019-08-07 19:53:35 +10:00
Oliver Tonnhofer
2b7d8be536 tiff: add support for JPEG quality
Uses JPEGQUALITY pseudo-tag from libtiff.

Also changes the way tags are passed to PyImaging_LibTiffEncoderNew from
dict to list to ensure that COMPRESSION tag is added before JPEGQUALITY.
This is required as the COMPRESSION tag registers the JPEGQUALITY
pseudo-tag.
2019-06-26 06:33:54 +10:00
Oliver Tonnhofer
61add9d6b0 Improve encoding of TIFF tags
- Pass tagtype from v2 directory to libtiff encoder, instead of
autodetecting type.
- Use explicit types. E.g. uint32_t for TIFF_LONG to fix issues on
platforms with 64bit longs.
- Add support for multiple values (arrays). Requires type in v2
directory and values must be passed as a tuple.
- Add support for signed types (e.g. TIFFTypes.TIFF_SIGNED_SHORT).
2019-06-26 06:33:19 +10:00
Andrew Murray
0a73e31415 Added note about RGBX padding 2019-06-21 19:37:43 +10:00
Andrew Murray
231fe4d62a Revert "Merge pull request #3838 from radarhere/i_conversion"
This reverts commit 41f3e7c8bd, reversing
changes made to 2f84482871.
2019-06-11 19:28:31 +10:00
Hugo
41f3e7c8bd
Merge pull request #3838 from radarhere/i_conversion
Improved I mode conversion
2019-06-05 22:23:35 +03:00
Andrew Murray
e1df2118b3 Link method [ci skip] 2019-06-02 13:34:18 +10:00
Andrew Murray
a258b8dcdc
Apply suggestions from code review [ci skip]
Co-Authored-By: Hugo <hugovk@users.noreply.github.com>
2019-05-09 19:05:06 +10:00
Andrew Murray
64eff66ee7 Updated pixel range documentation [ci skip] 2019-05-09 14:32:14 +10:00
Andrew Murray
f9f235ac2e Corrected use of function [ci skip] 2019-05-06 08:40:32 +10:00
Andrew Murray
38df9bef09 Added import [ci skip] 2019-05-06 08:38:43 +10:00
Andrew Murray
1d67bf0539 Document pixel range [ci skip] 2019-05-04 16:11:16 +10:00
Andrew Murray
d31de47768 Added release notes [ci skip] 2019-04-01 21:16:52 +11:00
Andrew Murray
9699ac40c7 n_frames is not an info key [ci skip] 2019-03-31 12:44:39 +11:00
Andrew Murray
7a845ee2e7 Corrected seek documentation [ci skip] 2019-03-31 12:43:09 +11:00
Andrew Kuchling
7ca0c189e3 Various documentation fixes [ci skip]
* TIFF: describe num_frames and seek()/tell()
* Link methods to PIL.Image class instead of the Python file object
* It doesn't seem like the Spider plug-in actually has an 'nimages' attribute
* Fix markup for exception name
2019-03-31 12:14:53 +11:00
Andrew Murray
4a5666f1f4 Added transparency for all PNG greyscale modes 2019-03-27 07:41:33 +11:00
Andrew Murray
fa8ecffff2 Corrected seek documentation 2019-03-17 00:00:10 +11:00
Andrew Murray
0ad09f7386
Merge branch 'master' into mime-types 2019-03-15 07:06:59 +11:00
Andrew Murray
ebdb1ffc54 Added PNM to the list of PPM files [ci skip] 2019-03-14 08:35:27 +11:00