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109 lines
3.6 KiB
ReStructuredText
109 lines
3.6 KiB
ReStructuredText
9.3.0
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-----
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Security
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========
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Initialize libtiff buffer when saving
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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When saving a TIFF image to a file object using libtiff, the buffer was not
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initialized. This behaviour introduced in Pillow 2.0.0, and has now been fixed.
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Decode JPEG compressed BLP1 data in original mode
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Within the BLP image format, BLP1 data may use JPEG compression. Instead of
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telling the JPEG library that this data is in BGRX mode, Pillow will now
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decode the data in its natural CMYK mode, then convert it to RGB and rearrange
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the channels afterwards. Trying to load the data in an incorrect mode could
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result in a segmentation fault. This issue was introduced in Pillow 9.1.0.
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Limit SAMPLESPERPIXEL to avoid runtime DOS
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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A large value in the ``SAMPLESPERPIXEL`` tag could lead to a memory and runtime DOS in
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``TiffImagePlugin.py`` when setting up the context for image decoding.
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This was introduced in Pillow 9.2.0, found with `OSS-Fuzz`_ and fixed by limiting
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``SAMPLESPERPIXEL`` to the number of planes that we can decode.
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API Additions
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=============
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Allow default ImageDraw font to be set
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Rather than specifying a font when calling text-related ImageDraw methods, or
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setting a font on each ImageDraw instance, the default font can now be set for
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all future ImageDraw operations::
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from PIL import ImageDraw, ImageFont
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ImageDraw.ImageDraw.font = ImageFont.truetype("Tests/fonts/FreeMono.ttf")
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Saving multiple MPO frames
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^^^^^^^^^^^^^^^^^^^^^^^^^^
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Multiple MPO frames can now be saved. Using the ``save_all`` argument, all of
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an image's frames will be saved to file::
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from PIL import Image
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im = Image.open("frozenpond.mpo")
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im.save(out, save_all=True)
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Additional images can also be appended when saving, by combining the
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``save_all`` argument with the ``append_images`` argument::
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im.save(out, save_all=True, append_images=[im1, im2, ...])
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Added ExifTags enums
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^^^^^^^^^^^^^^^^^^^^
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The data from :py:data:`~PIL.ExifTags.TAGS` and
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:py:data:`~PIL.ExifTags.GPSTAGS` is now also exposed as
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:py:class:`enum.IntEnum` classes: :py:data:`~PIL.ExifTags.Base` and
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:py:data:`~PIL.ExifTags.GPS`.
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Other Changes
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=============
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Python 3.11 wheels
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^^^^^^^^^^^^^^^^^^
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Pillow 9.2.0 had wheels built against Python 3.11 beta, available as a preview to help
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others prepare for 3.11, and ensure Pillow can be used immediately on release day of
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3.11.0 final (2022-10-24, :pep:`664`).
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Pillow 9.3.0 now officially includes binary wheels for Python 3.11 final.
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Windows wheels
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^^^^^^^^^^^^^^
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This release contains wheels for Windows built using GitHub Actions.
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Previously they were built by `Christoph Gohlke <https://www.cgohlke.com/>`_.
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A huge thanks to Christoph for building Windows binaries for us for around a decade,
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plus testing, and fixing over a hundred bug fixes along the way, in addition to building
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and hosting unofficial Windows binaries for hundreds of Python projects!
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Added DDS ATI1, ATI2 and BC6H reading
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Support has been added to read the ATI1, ATI2 and BC6H formats of DDS images.
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Release GIL when converting images using matrix operations
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Python's Global Interpreter Lock is now released when converting images using matrix
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operations.
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Show all frames with ImageShow
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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When calling :py:meth:`~PIL.Image.Image.show` or using
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:py:mod:`~PIL.ImageShow`, all frames will now be shown.
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.. _OSS-Fuzz: https://github.com/google/oss-fuzz
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