Merge branch 'main' into test_consolidation

.appveyor.yml

@@ -1,99 +0,0 @@
-skip_commits:
-  files:
-    - ".github/**/*"
-    - ".gitmodules"
-    - "docs/**/*"
-    - "wheels/**/*"
-
-version: '{build}'
-clone_folder: c:\pillow
-init:
-- ECHO %PYTHON%
-#- ps: iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))
-# Uncomment previous line to get RDP access during the build.
-
-environment:
-  COVERAGE_CORE: sysmon
-  EXECUTABLE: python.exe
-  TEST_OPTIONS:
-  DEPLOY: YES
-  matrix:
-  - PYTHON: C:/Python313
-    ARCHITECTURE: x86
-    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
-  - PYTHON: C:/Python39-x64
-    ARCHITECTURE: AMD64
-    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
-
-
-install:
-- '%PYTHON%\%EXECUTABLE% --version'
-- '%PYTHON%\%EXECUTABLE% -m pip install --upgrade pip'
-- curl -fsSL -o pillow-test-images.zip https://github.com/python-pillow/test-images/archive/main.zip
-- 7z x pillow-test-images.zip -oc:\
-- xcopy /S /Y c:\test-images-main\* c:\pillow\tests\images
-- curl -fsSL -o nasm-win64.zip https://raw.githubusercontent.com/python-pillow/pillow-depends/main/nasm-2.16.03-win64.zip
-- 7z x nasm-win64.zip -oc:\
-- choco install ghostscript --version=10.4.0
-- path c:\nasm-2.16.03;C:\Program Files\gs\gs10.04.0\bin;%PATH%
-- cd c:\pillow\winbuild\
-- ps: |
-        c:\python39\python.exe c:\pillow\winbuild\build_prepare.py -v --depends=C:\pillow-depends\
-        c:\pillow\winbuild\build\build_dep_all.cmd
-        $host.SetShouldExit(0)
-- path C:\pillow\winbuild\build\bin;%PATH%
-
-build_script:
-- cd c:\pillow
-- winbuild\build\build_env.cmd
-- '%PYTHON%\%EXECUTABLE% -m pip install -v -C raqm=vendor -C fribidi=vendor .'
-- '%PYTHON%\%EXECUTABLE% selftest.py --installed'
-
-test_script:
-- cd c:\pillow
-- '%PYTHON%\%EXECUTABLE% -m pip install pytest pytest-cov pytest-timeout defusedxml ipython numpy olefile pyroma'
-- c:\"Program Files (x86)"\"Windows Kits"\10\Debuggers\x86\gflags.exe /p /enable %PYTHON%\%EXECUTABLE%
-- path %PYTHON%;%PATH%
-- .ci\test.cmd
-
-after_test:
-- curl -Os https://uploader.codecov.io/latest/windows/codecov.exe
-- .\codecov.exe --file coverage.xml --name %PYTHON% --flags AppVeyor
-
-matrix:
-  fast_finish: true
-
-cache:
-- '%LOCALAPPDATA%\pip\Cache'
-
-artifacts:
-- path: pillow\*.egg
-  name: egg
-- path: pillow\*.whl
-  name: wheel
-
-before_deploy:
-  - cd c:\pillow
-  - '%PYTHON%\%EXECUTABLE% -m pip wheel -v -C raqm=vendor -C fribidi=vendor .'
-  - ps: Get-ChildItem .\*.whl | % { Push-AppveyorArtifact $_.FullName -FileName $_.Name }
-
-deploy:
-  provider: S3
-  region: us-west-2
-  access_key_id: AKIAIRAXC62ZNTVQJMOQ
-  secret_access_key:
-    secure: Hwb6klTqtBeMgxAjRoDltiiqpuH8xbwD4UooDzBSiCWXjuFj1lyl4kHgHwTCCGqi
-  bucket: pillow-nightly
-  folder: win/$(APPVEYOR_BUILD_NUMBER)/
-  artifact: /.*egg|wheel/
-  on:
-    APPVEYOR_REPO_NAME: python-pillow/Pillow
-    branch: main
-    deploy: YES
-
-
-# Uncomment the following lines to get RDP access after the build/test and block for
-# up to the timeout limit (~1hr)
-#
-#on_finish:
-#- ps: $blockRdp = $true; iex ((new-object net.webclient).DownloadString('https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-rdp.ps1'))

.ci/after_success.sh

@@ -2,8 +2,4 @@
 
 # gather the coverage data
 python3 -m pip install coverage
-if [[ $MATRIX_DOCKER ]]; then
+python3 -m coverage xml
-  python3 -m coverage xml --ignore-errors
-else
-  python3 -m coverage xml
-fi

.ci/build.sh

@@ -3,8 +3,5 @@
 set -e
 
 python3 -m coverage erase
-if [ $(uname) == "Darwin" ]; then
-    export CPPFLAGS="-I/usr/local/miniconda/include";
-fi
 make clean
 make install-coverage

.ci/install.sh

@@ -2,12 +2,12 @@
 
 aptget_update()
 {
-    if [ ! -z $1 ]; then
+    if [ -n "$1" ]; then
         echo ""
         echo "Retrying apt-get update..."
         echo ""
     fi
-    output=`sudo apt-get update 2>&1`
+    output=$(sudo apt-get update 2>&1)
     echo "$output"
     if [[ $output == *[WE]:\ * ]]; then
         return 1
@@ -20,10 +20,10 @@ fi
 set -e
 
 if [[ $(uname) != CYGWIN* ]]; then
-    sudo apt-get -qq install libfreetype6-dev liblcms2-dev python3-tk\
+    sudo apt-get -qq install libfreetype6-dev liblcms2-dev libtiff-dev python3-tk\
-                             ghostscript libjpeg-turbo-progs libopenjp2-7-dev\
+                             ghostscript libjpeg-turbo8-dev libopenjp2-7-dev\
                              cmake meson imagemagick libharfbuzz-dev libfribidi-dev\
-                             sway wl-clipboard libopenblas-dev
+                             sway wl-clipboard libopenblas-dev nasm
 fi
 
 python3 -m pip install --upgrade pip
@@ -36,6 +36,9 @@ python3 -m pip install -U pytest
 python3 -m pip install -U pytest-cov
 python3 -m pip install -U pytest-timeout
 python3 -m pip install pyroma
+# optional test dependency, only install if there's a binary package.
+# fails on beta 3.14 and PyPy
+python3 -m pip install --only-binary=:all: pyarrow || true
 
 if [[ $(uname) != CYGWIN* ]]; then
     python3 -m pip install numpy
@@ -50,7 +53,7 @@ if [[ $(uname) != CYGWIN* ]]; then
     # Pyroma uses non-isolated build and fails with old setuptools
     if [[ $GHA_PYTHON_VERSION == 3.9 ]]; then
         # To match pyproject.toml
-        python3 -m pip install "setuptools>=67.8"
+        python3 -m pip install "setuptools>=77"
     fi
 
     # webp
@@ -62,6 +65,9 @@ if [[ $(uname) != CYGWIN* ]]; then
     # raqm
     pushd depends && ./install_raqm.sh && popd
 
+    # libavif
+    pushd depends && ./install_libavif.sh && popd
+
     # extra test images
     pushd depends && ./install_extra_test_images.sh && popd
 else

.ci/requirements-cibw.txt

@@ -1 +1 @@
-cibuildwheel==2.21.3
+cibuildwheel==3.0.0

.ci/requirements-mypy.txt

@@ -1,9 +1,10 @@
-mypy==1.11.2
+mypy==1.16.1
 IceSpringPySideStubs-PyQt6
 IceSpringPySideStubs-PySide6
 ipython
 numpy
 packaging
+pyarrow-stubs
 pytest
 sphinx
 types-atheris

.ci/test.cmd

@@ -1,3 +1,3 @@
 python.exe -c "from PIL import Image"
 IF ERRORLEVEL 1 EXIT /B
-python.exe -bb -m pytest -v -x -W always --cov PIL --cov Tests --cov-report term --cov-report xml Tests
+python.exe -bb -m pytest -vv -x -W always --cov PIL --cov Tests --cov-report term --cov-report xml Tests

.ci/test.sh

@@ -4,4 +4,4 @@ set -e
 
 python3 -c "from PIL import Image"
 
-python3 -bb -m pytest -v -x -W always --cov PIL --cov Tests --cov-report term --cov-report xml Tests $REVERSE
+python3 -bb -m pytest -vv -x -W always --cov PIL --cov Tests --cov-report term --cov-report xml Tests $REVERSE

.clang-format

@@ -1,5 +1,26 @@
 # A clang-format style that approximates Python's PEP 7
 # Useful for IDE integration
+Language: C
+BasedOnStyle: Google
+AlwaysBreakAfterReturnType: All
+AllowShortIfStatementsOnASingleLine: false
+AlignAfterOpenBracket: BlockIndent
+BinPackArguments: false
+BinPackParameters: false
+BreakBeforeBraces: Attach
+ColumnLimit: 88
+DerivePointerAlignment: false
+IndentGotoLabels: false
+IndentWidth: 4
+PointerAlignment: Right
+ReflowComments: true
+SortIncludes: false
+SpaceBeforeParens: ControlStatements
+SpacesInParentheses: false
+TabWidth: 4
+UseTab: Never
+---
+Language: Cpp
 BasedOnStyle: Google
 AlwaysBreakAfterReturnType: All
 AllowShortIfStatementsOnASingleLine: false
@@ -11,7 +32,6 @@ ColumnLimit: 88
 DerivePointerAlignment: false
 IndentGotoLabels: false
 IndentWidth: 4
-Language: Cpp
 PointerAlignment: Right
 ReflowComments: true
 SortIncludes: false

.github/CONTRIBUTING.md

@@ -9,7 +9,7 @@ Please send a pull request to the `main` branch. Please include [documentation](
 - Fork the Pillow repository.
 - Create a branch from `main`.
 - Develop bug fixes, features, tests, etc.
-- Run the test suite. You can enable GitHub Actions (https://github.com/MY-USERNAME/Pillow/actions) and [AppVeyor](https://ci.appveyor.com/projects/new) on your repo to catch test failures prior to the pull request, and [Codecov](https://codecov.io/gh) to see if the changed code is covered by tests.
+- Run the test suite. You can enable GitHub Actions (https://github.com/MY-USERNAME/Pillow/actions) on your repo to catch test failures prior to the pull request, and [Codecov](https://codecov.io/gh) to see if the changed code is covered by tests.
 - Create a pull request to pull the changes from your branch to the Pillow `main`.
 
 ### Guidelines
@@ -17,9 +17,8 @@ Please send a pull request to the `main` branch. Please include [documentation](
 - Separate code commits from reformatting commits.
 - Provide tests for any newly added code.
 - Follow PEP 8.
-- When committing only documentation changes please include `[ci skip]` in the commit message to avoid running tests on AppVeyor.
+- When committing only documentation changes please include `[ci skip]` in the commit message to avoid running extra tests.
 - Include [release notes](https://github.com/python-pillow/Pillow/tree/main/docs/releasenotes) as needed or appropriate with your bug fixes, feature additions and tests.
-- Do not add to the [changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst) for proposed changes, as that is updated after changes are merged.
 
 ## Reporting Issues
 

.github/ISSUE_TEMPLATE/RELEASE.md

@@ -0,0 +1,46 @@
+---
+name: "Maintainers only: Release"
+about: For maintainers to schedule a quarterly release
+labels: Release
+---
+
+## Main release
+
+Released quarterly on January 2nd, April 1st, July 1st and October 15th.
+
+* [ ] Open a release ticket e.g. https://github.com/python-pillow/Pillow/issues/3154
+* [ ] Develop and prepare release in `main` branch.
+  * [ ] Add release notes e.g. https://github.com/python-pillow/Pillow/pull/8885
+* [ ] Check [GitHub Actions](https://github.com/python-pillow/Pillow/actions) to confirm passing tests in `main` branch.
+* [ ] Check that all the wheel builds pass the tests in the [GitHub Actions "Wheels" workflow](https://github.com/python-pillow/Pillow/actions/workflows/wheels.yml) jobs by manually triggering them.
+* [ ] In compliance with [PEP 440](https://peps.python.org/pep-0440/), update version identifier in `src/PIL/_version.py`
+* [ ] Run pre-release check via `make release-test` in a freshly cloned repo.
+* [ ] Create branch and tag for release e.g.:
+  ```bash
+  git branch [[MAJOR.MINOR]].x
+  git tag [[MAJOR.MINOR]].0
+  git push --tags
+  ```
+* [ ] Check the [GitHub Actions "Wheels" workflow](https://github.com/python-pillow/Pillow/actions/workflows/wheels.yml) has passed, including the "Upload release to PyPI" job. This will have been triggered by the new tag.
+* [ ] Publish the [release on GitHub](https://github.com/python-pillow/Pillow/releases).
+* [ ] In compliance with [PEP 440](https://peps.python.org/pep-0440/), increment and append `.dev0` to version identifier in `src/PIL/_version.py` and then:
+  ```bash
+  git push --all
+   ```
+
+## Publicize release
+
+* [ ] Announce release availability via [Mastodon](https://fosstodon.org/@pillow) e.g. https://fosstodon.org/@pillow/110639450470725321
+
+## Documentation
+
+* [ ] Make sure the [default version for Read the Docs](https://pillow.readthedocs.io/en/stable/) is up-to-date with the release changes
+
+## Docker images
+
+* [ ] Update Pillow in the Docker Images repository
+  ```bash
+  git clone https://github.com/python-pillow/docker-images
+  cd docker-images
+  ./update-pillow-tag.sh [[release tag]]
+  ```

.github/mergify.yml

@@ -9,7 +9,6 @@ pull_request_rules:
       - status-success=Windows Test Successful
       - status-success=MinGW
       - status-success=Cygwin Test Successful
-      - status-success=continuous-integration/appveyor/pr
     actions:
       merge:
         method: merge

.github/release-drafter.yml

@@ -3,18 +3,19 @@ tag-template: "$NEXT_MINOR_VERSION"
 change-template: '- $TITLE #$NUMBER [@$AUTHOR]'
 
 categories:
-  - title: "Dependencies"
+  - title: "Removals"
-    label: "Dependency"
+    label: "Removal"
   - title: "Deprecations"
     label: "Deprecation"
   - title: "Documentation"
     label: "Documentation"
-  - title: "Removals"
+  - title: "Dependencies"
-    label: "Removal"
+    label: "Dependency"
   - title: "Testing"
     label: "Testing"
   - title: "Type hints"
     label: "Type hints"
+  - title: "Other changes"
 
 exclude-labels:
   - "changelog: skip"
@@ -23,6 +24,4 @@ template: |
 
   https://pillow.readthedocs.io/en/stable/releasenotes/$NEXT_MINOR_VERSION.html
 
-  ## Changes
-
   $CHANGES

.github/renovate.json

@@ -1,7 +1,7 @@
 {
     "$schema": "https://docs.renovatebot.com/renovate-schema.json",
     "extends": [
-        "config:base"
+        "config:recommended"
     ],
     "labels": [
         "Dependency"
@@ -9,9 +9,13 @@
     "packageRules": [
         {
             "groupName": "github-actions",
-            "matchManagers": ["github-actions"],
+            "matchManagers": [
-            "separateMajorMinor": "false"
+                "github-actions"
+            ],
+            "separateMajorMinor": false
         }
     ],
-    "schedule": ["on the 3rd day of the month"]
+    "schedule": [
+        "* * 3 * *"
+    ]
 }

.github/workflows/docs.yml

@@ -33,6 +33,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        persist-credentials: false
 
     - name: Set up Python
       uses: actions/setup-python@v5

.github/workflows/lint.yml

@@ -21,6 +21,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        persist-credentials: false
 
     - name: pre-commit cache
       uses: actions/cache@v4

.github/workflows/macos-install.sh

@@ -6,19 +6,19 @@ if [[ "$ImageOS" == "macos13" ]]; then
     brew uninstall gradle maven
 fi
 brew install \
+    aom \
+    dav1d \
     freetype \
     ghostscript \
+    jpeg-turbo \
     libimagequant \
-    libjpeg \
+    libraqm \
     libtiff \
     little-cms2 \
     openjpeg \
+    rav1e \
+    svt-av1 \
     webp
-if [[ "$ImageOS" == "macos13" ]]; then
-    brew install --ignore-dependencies libraqm
-else
-    brew install libraqm
-fi
 export PKG_CONFIG_PATH="/usr/local/opt/openblas/lib/pkgconfig"
 
 python3 -m pip install coverage
@@ -30,6 +30,12 @@ python3 -m pip install -U pytest-cov
 python3 -m pip install -U pytest-timeout
 python3 -m pip install pyroma
 python3 -m pip install numpy
+# optional test dependency, only install if there's a binary package.
+# fails on beta 3.14 and PyPy
+python3 -m pip install --only-binary=:all: pyarrow || true
+
+# libavif
+pushd depends && ./install_libavif.sh && popd
 
 # extra test images
 pushd depends && ./install_extra_test_images.sh && popd

.github/workflows/stale.yml

@@ -6,7 +6,7 @@ on:
   workflow_dispatch:
 
 permissions:
-  issues: write
+  contents: read
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -15,6 +15,8 @@ concurrency:
 jobs:
   stale:
     if: github.repository_owner == 'python-pillow'
+    permissions:
+      issues: write
 
     runs-on: ubuntu-latest
 

.github/workflows/test-cygwin.yml

@@ -48,9 +48,11 @@ jobs:
 
       - name: Checkout Pillow
         uses: actions/checkout@v4
+        with:
+          persist-credentials: false
 
       - name: Install Cygwin
-        uses: cygwin/cygwin-install-action@v4
+        uses: cygwin/cygwin-install-action@v5
         with:
           packages: >
             gcc-g++
@@ -131,11 +133,12 @@ jobs:
       - name: After success
         run: |
           bash.exe .ci/after_success.sh
+          rm C:\cygwin\bin\bash.EXE
 
       - name: Upload coverage
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         with:
-          file: ./coverage.xml
+          files: ./coverage.xml
           flags: GHA_Cygwin
           name: Cygwin Python 3.${{ matrix.python-minor-version }}
           token: ${{ secrets.CODECOV_ORG_TOKEN }}

.github/workflows/test-docker.yml

@@ -29,13 +29,13 @@ concurrency:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
+        os: ["ubuntu-latest"]
         docker: [
           # Run slower jobs first to give them a headstart and reduce waiting time
-          ubuntu-22.04-jammy-arm64v8,
           ubuntu-24.04-noble-ppc64le,
           ubuntu-24.04-noble-s390x,
           # Then run the remainder
@@ -44,35 +44,40 @@ jobs:
           amazon-2023-amd64,
           arch,
           centos-stream-9-amd64,
+          centos-stream-10-amd64,
           debian-12-bookworm-x86,
           debian-12-bookworm-amd64,
-          fedora-39-amd64,
+          fedora-41-amd64,
-          fedora-40-amd64,
+          fedora-42-amd64,
           gentoo,
           ubuntu-22.04-jammy-amd64,
           ubuntu-24.04-noble-amd64,
         ]
         dockerTag: [main]
         include:
-          - docker: "ubuntu-22.04-jammy-arm64v8"
-            qemu-arch: "aarch64"
           - docker: "ubuntu-24.04-noble-ppc64le"
             qemu-arch: "ppc64le"
           - docker: "ubuntu-24.04-noble-s390x"
             qemu-arch: "s390x"
+          - docker: "ubuntu-24.04-noble-arm64v8"
+            os: "ubuntu-24.04-arm"
+            dockerTag: main
 
     name: ${{ matrix.docker }}
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        persist-credentials: false
 
     - name: Build system information
       run: python3 .github/workflows/system-info.py
 
     - name: Set up QEMU
       if: "matrix.qemu-arch"
-      run: |
+      uses: docker/setup-qemu-action@v3
-        docker run --rm --privileged aptman/qus -s -- -p ${{ matrix.qemu-arch }}
+      with:
+        platforms: ${{ matrix.qemu-arch }}
 
     - name: Docker pull
       run: |
@@ -87,22 +92,21 @@ jobs:
 
     - name: After success
       run: |
-        PATH="$PATH:~/.local/bin"
         docker start pillow_container
+        sudo docker cp pillow_container:/Pillow /Pillow
+        sudo chown -R runner /Pillow
         pil_path=`docker exec pillow_container /vpy3/bin/python -c 'import os, PIL;print(os.path.realpath(os.path.dirname(PIL.__file__)))'`
         docker stop pillow_container
         sudo mkdir -p $pil_path
         sudo cp src/PIL/*.py $pil_path
+        cd /Pillow
         .ci/after_success.sh
-      env:
-        MATRIX_DOCKER: ${{ matrix.docker }}
 
     - name: Upload coverage
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
       with:
         flags: GHA_Docker
         name: ${{ matrix.docker }}
-        gcov: true
         token: ${{ secrets.CODECOV_ORG_TOKEN }}
 
   success:

.github/workflows/test-mingw.yml

@@ -46,6 +46,8 @@ jobs:
     steps:
       - name: Checkout Pillow
         uses: actions/checkout@v4
+        with:
+          persist-credentials: false
 
       - name: Set up shell
         run: echo "C:\msys64\usr\bin\" >> $env:GITHUB_PATH
@@ -58,24 +60,25 @@ jobs:
               mingw-w64-x86_64-gcc \
               mingw-w64-x86_64-ghostscript \
               mingw-w64-x86_64-lcms2 \
+              mingw-w64-x86_64-libavif \
               mingw-w64-x86_64-libimagequant \
               mingw-w64-x86_64-libjpeg-turbo \
               mingw-w64-x86_64-libraqm \
               mingw-w64-x86_64-libtiff \
               mingw-w64-x86_64-libwebp \
               mingw-w64-x86_64-openjpeg2 \
-              mingw-w64-x86_64-python3-numpy \
+              mingw-w64-x86_64-python-numpy \
-              mingw-w64-x86_64-python3-olefile \
+              mingw-w64-x86_64-python-olefile \
-              mingw-w64-x86_64-python3-setuptools \
+              mingw-w64-x86_64-python-pip \
+              mingw-w64-x86_64-python-pytest \
+              mingw-w64-x86_64-python-pytest-cov \
+              mingw-w64-x86_64-python-pytest-timeout \
               mingw-w64-x86_64-python-pyqt6
 
-          python3 -m ensurepip
-          python3 -m pip install pyroma pytest pytest-cov pytest-timeout
-
           pushd depends && ./install_extra_test_images.sh && popd
 
       - name: Build Pillow
-        run: SETUPTOOLS_USE_DISTUTILS="stdlib" CFLAGS="-coverage" python3 -m pip install .
+        run: CFLAGS="-coverage" python3 -m pip install .
 
       - name: Test Pillow
         run: |
@@ -83,9 +86,9 @@ jobs:
           .ci/test.sh
 
       - name: Upload coverage
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         with:
-          file: ./coverage.xml
+          files: ./coverage.xml
           flags: GHA_Windows
           name: "MSYS2 MinGW"
           token: ${{ secrets.CODECOV_ORG_TOKEN }}

.github/workflows/test-valgrind-memory.yml

@@ -0,0 +1,60 @@
+name: Test Valgrind Memory Leaks
+
+# like the Docker tests, but running valgrind only on *.c/*.h changes.
+
+# this is very expensive. Only run on the pull request.
+on:
+  # push:
+  #   branches:
+  #     - "**"
+  #   paths:
+  #     - ".github/workflows/test-valgrind.yml"
+  #     - "**.c"
+  #     - "**.h"
+  pull_request:
+    paths:
+      - ".github/workflows/test-valgrind.yml"
+      - "**.c"
+      - "**.h"
+      - "depends/docker-test-valgrind-memory.sh"
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        docker: [
+          ubuntu-22.04-jammy-amd64-valgrind,
+        ]
+        dockerTag: [main]
+
+    name: ${{ matrix.docker }}
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        persist-credentials: false
+
+    - name: Build system information
+      run: python3 .github/workflows/system-info.py
+
+    - name: Docker pull
+      run: |
+        docker pull pythonpillow/${{ matrix.docker }}:${{ matrix.dockerTag }}
+
+    - name: Build and Run Valgrind
+      run: |
+        # The Pillow user in the docker container is UID 1001
+        sudo chown -R 1001 $GITHUB_WORKSPACE
+        docker run --name pillow_container -e "PILLOW_VALGRIND_TEST=true" -v $GITHUB_WORKSPACE:/Pillow pythonpillow/${{ matrix.docker }}:${{ matrix.dockerTag }} /Pillow/depends/docker-test-valgrind-memory.sh
+        sudo chown -R runner $GITHUB_WORKSPACE

.github/workflows/test-valgrind.yml

@@ -40,6 +40,8 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        persist-credentials: false
 
     - name: Build system information
       run: python3 .github/workflows/system-info.py

.github/workflows/test-windows.yml

@@ -35,25 +35,33 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["pypy3.10", "3.9", "3.10", "3.11", "3.12", "3.13"]
+        python-version: ["pypy3.11", "pypy3.10", "3.10", "3.11", "3.12", ">=3.13.5", "3.14"]
+        architecture: ["x64"]
+        include:
+            # Test the oldest Python on 32-bit
+            - { python-version: "3.9", architecture: "x86" }
 
-    timeout-minutes: 30
+    timeout-minutes: 45
 
-    name: Python ${{ matrix.python-version }}
+    name: Python ${{ matrix.python-version }} (${{ matrix.architecture }})
 
     steps:
     - name: Checkout Pillow
       uses: actions/checkout@v4
+      with:
+        persist-credentials: false
 
     - name: Checkout cached dependencies
       uses: actions/checkout@v4
       with:
+        persist-credentials: false
         repository: python-pillow/pillow-depends
         path: winbuild\depends
 
     - name: Checkout extra test images
       uses: actions/checkout@v4
       with:
+        persist-credentials: false
         repository: python-pillow/test-images
         path: Tests\test-images
 
@@ -63,22 +71,25 @@ jobs:
       with:
         python-version: ${{ matrix.python-version }}
         allow-prereleases: true
+        architecture: ${{ matrix.architecture }}
         cache: pip
         cache-dependency-path: ".github/workflows/test-windows.yml"
 
     - name: Print build system information
       run: python3 .github/workflows/system-info.py
 
-    - name: Install Python dependencies
+    - name: Upgrade pip
-      run: >
+      run: |
-        python3 -m pip install
+        python3 -m pip install --upgrade pip
-        coverage>=7.4.2
+
-        defusedxml
+    - name: Install CPython dependencies
-        olefile
+      if: "!contains(matrix.python-version, 'pypy') && !contains(matrix.python-version, '3.14') && matrix.architecture != 'x86'"
-        pyroma
+      run: |
-        pytest
+        python3 -m pip install PyQt6
-        pytest-cov
+
-        pytest-timeout
+    - name: Install PyArrow dependency
+      run: |
+        python3 -m pip install --only-binary=:all: pyarrow || true
 
     - name: Install dependencies
       id: install
@@ -86,8 +97,8 @@ jobs:
         choco install nasm --no-progress
         echo "C:\Program Files\NASM" >> $env:GITHUB_PATH
 
-        choco install ghostscript --version=10.4.0 --no-progress
+        choco install ghostscript --version=10.5.1 --no-progress
-        echo "C:\Program Files\gs\gs10.04.0\bin" >> $env:GITHUB_PATH
+        echo "C:\Program Files\gs\gs10.05.1\bin" >> $env:GITHUB_PATH
 
         # Install extra test images
         xcopy /S /Y Tests\test-images\* Tests\images
@@ -137,6 +148,10 @@ jobs:
       if: steps.build-cache.outputs.cache-hit != 'true'
       run: "& winbuild\\build\\build_dep_libpng.cmd"
 
+    - name: Build dependencies / libavif
+      if: steps.build-cache.outputs.cache-hit != 'true' && matrix.architecture == 'x64'
+      run: "& winbuild\\build\\build_dep_libavif.cmd"
+
     # for FreeType WOFF2 font support
     - name: Build dependencies / brotli
       if: steps.build-cache.outputs.cache-hit != 'true'
@@ -178,7 +193,7 @@ jobs:
     - name: Build Pillow
       run: |
         $FLAGS="-C raqm=vendor -C fribidi=vendor"
-        cmd /c "winbuild\build\build_env.cmd && $env:pythonLocation\python.exe -m pip install -v $FLAGS ."
+        cmd /c "winbuild\build\build_env.cmd && $env:pythonLocation\python.exe -m pip install -v $FLAGS .[tests]"
         & $env:pythonLocation\python.exe selftest.py --installed
       shell: pwsh
 
@@ -213,9 +228,9 @@ jobs:
       shell: pwsh
 
     - name: Upload coverage
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
       with:
-        file: ./coverage.xml
+        files: ./coverage.xml
         flags: GHA_Windows
         name: ${{ runner.os }} Python ${{ matrix.python-version }}
         token: ${{ secrets.CODECOV_ORG_TOKEN }}

.github/workflows/test.yml

@@ -41,7 +41,11 @@ jobs:
           "ubuntu-latest",
         ]
         python-version: [
+          "pypy3.11",
           "pypy3.10",
+          "3.14t",
+          "3.14",
+          "3.13t",
           "3.13",
           "3.12",
           "3.11",
@@ -52,21 +56,23 @@ jobs:
         - { python-version: "3.11", PYTHONOPTIMIZE: 1, REVERSE: "--reverse" }
         - { python-version: "3.10", PYTHONOPTIMIZE: 2 }
         # Free-threaded
-        - { os: "ubuntu-latest", python-version: "3.13-dev", disable-gil: true }
+        - { python-version: "3.14t", disable-gil: true }
+        - { python-version: "3.13t", disable-gil: true }
         # M1 only available for 3.10+
         - { os: "macos-13", python-version: "3.9" }
         exclude:
         - { os: "macos-latest", python-version: "3.9" }
 
     runs-on: ${{ matrix.os }}
-    name: ${{ matrix.os }} Python ${{ matrix.python-version }} ${{ matrix.disable-gil && 'free-threaded' || '' }}
+    name: ${{ matrix.os }} Python ${{ matrix.python-version }}
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        persist-credentials: false
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
-      if: "${{ !matrix.disable-gil }}"
       with:
         python-version: ${{ matrix.python-version }}
         allow-prereleases: true
@@ -75,13 +81,6 @@ jobs:
           ".ci/*.sh"
           "pyproject.toml"
 
-    - name: Set up Python ${{ matrix.python-version }} (free-threaded)
-      uses: deadsnakes/action@v3.2.0
-      if: "${{ matrix.disable-gil }}"
-      with:
-        python-version: ${{ matrix.python-version }}
-        nogil: ${{ matrix.disable-gil }}
-
     - name: Set PYTHON_GIL
       if: "${{ matrix.disable-gil }}"
       run: |
@@ -114,7 +113,7 @@ jobs:
         GHA_PYTHON_VERSION: ${{ matrix.python-version }}
 
     - name: Register gcc problem matcher
-      if: "matrix.os == 'ubuntu-latest' && matrix.python-version == '3.12'"
+      if: "matrix.os == 'ubuntu-latest' && matrix.python-version == '3.13'"
       run: echo "::add-matcher::.github/problem-matchers/gcc.json"
 
     - name: Build
@@ -154,11 +153,10 @@ jobs:
         .ci/after_success.sh
 
     - name: Upload coverage
-      uses: codecov/codecov-action@v4
+      uses: codecov/codecov-action@v5
       with:
         flags: ${{ matrix.os == 'ubuntu-latest' && 'GHA_Ubuntu' || 'GHA_macOS' }}
         name: ${{ matrix.os }} Python ${{ matrix.python-version }}
-        gcov: true
         token: ${{ secrets.CODECOV_ORG_TOKEN }}
 
   success:

.github/workflows/wheels-dependencies.sh

@@ -1,11 +1,33 @@
 #!/bin/bash
-# Define custom utilities
+
-# Test for macOS with [ -n "$IS_MACOS" ]
+# Setup that needs to be done before multibuild utils are invoked
-if [ -z "$IS_MACOS" ]; then
+PROJECTDIR=$(pwd)
-    export MB_ML_LIBC=${AUDITWHEEL_POLICY::9}
+if [[ "$(uname -s)" == "Darwin" ]]; then
-    export MB_ML_VER=${AUDITWHEEL_POLICY:9}
+    # Safety check - macOS builds require that CIBW_ARCHS is set, and that it
+    # only contains a single value (even though cibuildwheel allows multiple
+    # values in CIBW_ARCHS).
+    if [[ -z "$CIBW_ARCHS" ]]; then
+        echo "ERROR: Pillow macOS builds require CIBW_ARCHS be defined."
+        exit 1
+    fi
+    if [[ "$CIBW_ARCHS" == *" "* ]]; then
+        echo "ERROR: Pillow macOS builds only support a single architecture in CIBW_ARCHS."
+        exit 1
+    fi
+
+    # Build macOS dependencies in `build/darwin`
+    # Install them into `build/deps/darwin`
+    WORKDIR=$(pwd)/build/darwin
+    BUILD_PREFIX=$(pwd)/build/deps/darwin
+else
+    # Build prefix will default to /usr/local
+    WORKDIR=$(pwd)/build
+    MB_ML_LIBC=${AUDITWHEEL_POLICY::9}
+    MB_ML_VER=${AUDITWHEEL_POLICY:9}
 fi
-export PLAT=$CIBW_ARCHS
+PLAT="${CIBW_ARCHS:-$AUDITWHEEL_ARCH}"
+
+# Define custom utilities
 source wheels/multibuild/common_utils.sh
 source wheels/multibuild/library_builders.sh
 if [ -z "$IS_MACOS" ]; then
@@ -15,93 +37,167 @@ fi
 ARCHIVE_SDIR=pillow-depends-main
 
 # Package versions for fresh source builds
-FREETYPE_VERSION=2.13.2
+FREETYPE_VERSION=2.13.3
-HARFBUZZ_VERSION=10.0.1
+HARFBUZZ_VERSION=11.2.1
-LIBPNG_VERSION=1.6.44
+LIBPNG_VERSION=1.6.49
-JPEGTURBO_VERSION=3.0.4
+JPEGTURBO_VERSION=3.1.1
-OPENJPEG_VERSION=2.5.2
+OPENJPEG_VERSION=2.5.3
-XZ_VERSION=5.6.3
+XZ_VERSION=5.8.1
-TIFF_VERSION=4.6.0
+TIFF_VERSION=4.7.0
-LCMS2_VERSION=2.16
+LCMS2_VERSION=2.17
-if [[ -n "$IS_MACOS" ]]; then
+ZLIB_VERSION=1.3.1
-    GIFLIB_VERSION=5.2.2
+ZLIB_NG_VERSION=2.2.4
-else
+LIBWEBP_VERSION=1.5.0
-    GIFLIB_VERSION=5.2.1
-fi
-if [[ -n "$IS_MACOS" ]] || [[ "$MB_ML_VER" != 2014 ]]; then
-    ZLIB_VERSION=1.3.1
-else
-    ZLIB_VERSION=1.2.8
-fi
-LIBWEBP_VERSION=1.4.0
 BZIP2_VERSION=1.0.8
 LIBXCB_VERSION=1.17.0
 BROTLI_VERSION=1.1.0
+LIBAVIF_VERSION=1.3.0
+
+function build_pkg_config {
+    if [ -e pkg-config-stamp ]; then return; fi
+    # This essentially duplicates the Homebrew recipe
+    CFLAGS="$CFLAGS -Wno-int-conversion" build_simple pkg-config 0.29.2 https://pkg-config.freedesktop.org/releases tar.gz \
+        --disable-debug --disable-host-tool --with-internal-glib \
+        --with-pc-path=$BUILD_PREFIX/share/pkgconfig:$BUILD_PREFIX/lib/pkgconfig \
+        --with-system-include-path=$(xcrun --show-sdk-path --sdk macosx)/usr/include
+    export PKG_CONFIG=$BUILD_PREFIX/bin/pkg-config
+    touch pkg-config-stamp
+}
+
+function build_zlib_ng {
+    if [ -e zlib-stamp ]; then return; fi
+    build_github zlib-ng/zlib-ng $ZLIB_NG_VERSION --zlib-compat
+
+    if [ -n "$IS_MACOS" ]; then
+        # Ensure that on macOS, the library name is an absolute path, not an
+        # @rpath, so that delocate picks up the right library (and doesn't need
+        # DYLD_LIBRARY_PATH to be set). The default Makefile doesn't have an
+        # option to control the install_name.
+        install_name_tool -id $BUILD_PREFIX/lib/libz.1.dylib $BUILD_PREFIX/lib/libz.1.dylib
+    fi
+    touch zlib-stamp
+}
 
 function build_brotli {
-    local cmake=$(get_modern_cmake)
+    if [ -e brotli-stamp ]; then return; fi
     local out_dir=$(fetch_unpack https://github.com/google/brotli/archive/v$BROTLI_VERSION.tar.gz brotli-$BROTLI_VERSION.tar.gz)
     (cd $out_dir \
-        && $cmake -DCMAKE_INSTALL_PREFIX=$BUILD_PREFIX -DCMAKE_INSTALL_NAME_DIR=$BUILD_PREFIX/lib . \
+        && cmake -DCMAKE_INSTALL_PREFIX=$BUILD_PREFIX -DCMAKE_INSTALL_LIBDIR=$BUILD_PREFIX/lib -DCMAKE_INSTALL_NAME_DIR=$BUILD_PREFIX/lib . \
         && make install)
-    if [[ "$MB_ML_LIBC" == "manylinux" ]]; then
+    touch brotli-stamp
-        cp /usr/local/lib64/libbrotli* /usr/local/lib
-        cp /usr/local/lib64/pkgconfig/libbrotli* /usr/local/lib/pkgconfig
-    fi
 }
 
 function build_harfbuzz {
+    if [ -e harfbuzz-stamp ]; then return; fi
     python3 -m pip install meson ninja
 
-    local out_dir=$(fetch_unpack https://github.com/harfbuzz/harfbuzz/releases/download/$HARFBUZZ_VERSION/$HARFBUZZ_VERSION.tar.xz harfbuzz-$HARFBUZZ_VERSION.tar.xz)
+    local out_dir=$(fetch_unpack https://github.com/harfbuzz/harfbuzz/releases/download/$HARFBUZZ_VERSION/harfbuzz-$HARFBUZZ_VERSION.tar.xz harfbuzz-$HARFBUZZ_VERSION.tar.xz)
     (cd $out_dir \
-        && meson setup build --buildtype=release -Dfreetype=enabled -Dglib=disabled)
+        && meson setup build --prefix=$BUILD_PREFIX --libdir=$BUILD_PREFIX/lib --buildtype=minsize -Dfreetype=enabled -Dglib=disabled -Dtests=disabled)
     (cd $out_dir/build \
         && meson install)
-    if [[ "$MB_ML_LIBC" == "manylinux" ]]; then
+    touch harfbuzz-stamp
-        cp /usr/local/lib64/libharfbuzz* /usr/local/lib
+}
+
+function build_libavif {
+    if [ -e libavif-stamp ]; then return; fi
+
+    python3 -m pip install meson ninja
+
+    if [[ "$PLAT" == "x86_64" ]] || [ -n "$SANITIZER" ]; then
+        build_simple nasm 2.16.03 https://www.nasm.us/pub/nasm/releasebuilds/2.16.03
     fi
+
+    local build_type=MinSizeRel
+    local lto=ON
+
+    local libavif_cmake_flags
+
+    if [ -n "$IS_MACOS" ]; then
+        lto=OFF
+        libavif_cmake_flags=(
+            -DCMAKE_C_FLAGS_MINSIZEREL="-Oz -DNDEBUG -flto" \
+            -DCMAKE_CXX_FLAGS_MINSIZEREL="-Oz -DNDEBUG -flto" \
+            -DCMAKE_SHARED_LINKER_FLAGS_INIT="-Wl,-S,-x,-dead_strip_dylibs" \
+        )
+    else
+        if [[ "$MB_ML_VER" == 2014 ]] && [[ "$PLAT" == "x86_64" ]]; then
+            build_type=Release
+        fi
+        libavif_cmake_flags=(-DCMAKE_SHARED_LINKER_FLAGS_INIT="-Wl,--strip-all,-z,relro,-z,now")
+    fi
+
+    local out_dir=$(fetch_unpack https://github.com/AOMediaCodec/libavif/archive/refs/tags/v$LIBAVIF_VERSION.tar.gz libavif-$LIBAVIF_VERSION.tar.gz)
+    # CONFIG_AV1_HIGHBITDEPTH=0 is a flag for libaom (included as a subproject
+    # of libavif) that disables support for encoding high bit depth images.
+    (cd $out_dir \
+        && cmake \
+            -DCMAKE_INSTALL_PREFIX=$BUILD_PREFIX \
+            -DCMAKE_INSTALL_LIBDIR=$BUILD_PREFIX/lib \
+            -DCMAKE_INSTALL_NAME_DIR=$BUILD_PREFIX/lib \
+            -DBUILD_SHARED_LIBS=ON \
+            -DAVIF_LIBSHARPYUV=LOCAL \
+            -DAVIF_LIBYUV=LOCAL \
+            -DAVIF_CODEC_AOM=LOCAL \
+            -DCONFIG_AV1_HIGHBITDEPTH=0 \
+            -DAVIF_CODEC_AOM_DECODE=OFF \
+            -DAVIF_CODEC_DAV1D=LOCAL \
+            -DCMAKE_INTERPROCEDURAL_OPTIMIZATION=$lto \
+            -DCMAKE_C_VISIBILITY_PRESET=hidden \
+            -DCMAKE_CXX_VISIBILITY_PRESET=hidden \
+            -DCMAKE_BUILD_TYPE=$build_type \
+            "${libavif_cmake_flags[@]}" \
+            . \
+        && make install)
+    touch libavif-stamp
 }
 
 function build {
-    if [[ -n "$IS_MACOS" ]] && [[ "$CIBW_ARCHS" == "arm64" ]]; then
-        sudo chown -R runner /usr/local
-    fi
     build_xz
-    if [ -z "$IS_ALPINE" ] && [ -z "$IS_MACOS" ]; then
+    if [ -z "$IS_ALPINE" ] && [ -z "$SANITIZER" ] && [ -z "$IS_MACOS" ]; then
         yum remove -y zlib-devel
     fi
-    build_new_zlib
+    if [[ -n "$IS_MACOS" ]] && [[ "$MACOSX_DEPLOYMENT_TARGET" == "10.10" || "$MACOSX_DEPLOYMENT_TARGET" == "10.13" ]]; then
+        build_new_zlib
+    else
+        build_zlib_ng
+    fi
 
     build_simple xcb-proto 1.17.0 https://xorg.freedesktop.org/archive/individual/proto
     if [ -n "$IS_MACOS" ]; then
         build_simple xorgproto 2024.1 https://www.x.org/pub/individual/proto
-        build_simple libXau 1.0.11 https://www.x.org/pub/individual/lib
+        build_simple libXau 1.0.12 https://www.x.org/pub/individual/lib
         build_simple libpthread-stubs 0.5 https://xcb.freedesktop.org/dist
-        if [[ "$CIBW_ARCHS" == "arm64" ]]; then
-            cp /usr/local/share/pkgconfig/xcb-proto.pc /usr/local/lib/pkgconfig
-        fi
     else
-        sed s/\${pc_sysrootdir\}// /usr/local/share/pkgconfig/xcb-proto.pc > /usr/local/lib/pkgconfig/xcb-proto.pc
+        sed s/\${pc_sysrootdir\}// $BUILD_PREFIX/share/pkgconfig/xcb-proto.pc > $BUILD_PREFIX/lib/pkgconfig/xcb-proto.pc
     fi
     build_simple libxcb $LIBXCB_VERSION https://www.x.org/releases/individual/lib
 
     build_libjpeg_turbo
-    build_tiff
+    if [ -n "$IS_MACOS" ]; then
+        # Custom tiff build to include jpeg; by default, configure won't include
+        # headers/libs in the custom macOS prefix. Explicitly disable webp,
+        # libdeflate and zstd, because on x86_64 macs, it will pick up the
+        # Homebrew versions of those libraries from /usr/local.
+        build_simple tiff $TIFF_VERSION https://download.osgeo.org/libtiff tar.gz \
+            --with-jpeg-include-dir=$BUILD_PREFIX/include --with-jpeg-lib-dir=$BUILD_PREFIX/lib \
+            --disable-webp --disable-libdeflate --disable-zstd
+    else
+        build_tiff
+    fi
+
+    build_libavif
     build_libpng
     build_lcms2
     build_openjpeg
-    if [ -f /usr/local/lib64/libopenjp2.so ]; then
-        cp /usr/local/lib64/libopenjp2.so /usr/local/lib
-    fi
 
-    ORIGINAL_CFLAGS=$CFLAGS
+    webp_cflags="-O3 -DNDEBUG"
-    CFLAGS="$CFLAGS -O3 -DNDEBUG"
     if [[ -n "$IS_MACOS" ]]; then
-        CFLAGS="$CFLAGS -Wl,-headerpad_max_install_names"
+        webp_cflags="$webp_cflags -Wl,-headerpad_max_install_names"
     fi
-    build_libwebp
+    CFLAGS="$CFLAGS $webp_cflags" build_simple libwebp $LIBWEBP_VERSION \
-    CFLAGS=$ORIGINAL_CFLAGS
+        https://storage.googleapis.com/downloads.webmproject.org/releases/webp tar.gz \
+        --enable-libwebpmux --enable-libwebpdemux
 
     build_brotli
 
@@ -115,31 +211,47 @@ function build {
     build_harfbuzz
 }
 
+# Perform all dependency builds in the build subfolder.
+mkdir -p $WORKDIR
+pushd $WORKDIR > /dev/null
+
 # Any stuff that you need to do before you start building the wheels
 # Runs in the root directory of this repository.
-curl -fsSL -o pillow-depends-main.zip https://github.com/python-pillow/pillow-depends/archive/main.zip
+if [[ ! -d $WORKDIR/pillow-depends-main ]]; then
-untar pillow-depends-main.zip
+  if [[ ! -f $PROJECTDIR/pillow-depends-main.zip ]]; then
+    echo "Download pillow dependency sources..."
+    curl -fSL -o $PROJECTDIR/pillow-depends-main.zip https://github.com/python-pillow/pillow-depends/archive/main.zip
+  fi
+  echo "Unpacking pillow dependency sources..."
+  untar $PROJECTDIR/pillow-depends-main.zip
+fi
 
 if [[ -n "$IS_MACOS" ]]; then
-  # libtiff and libxcb cause a conflict with building libtiff and libxcb
+    # Homebrew (or similar packaging environments) install can contain some of
-  # libxau and libxdmcp cause an issue on macOS < 11
+    # the libraries that we're going to build. However, they may be compiled
-  # remove cairo to fix building harfbuzz on arm64
+    # with a MACOSX_DEPLOYMENT_TARGET that doesn't match what we want to use,
-  # remove lcms2 and libpng to fix building openjpeg on arm64
+    # and they may bring in other dependencies that we don't want. The same will
-  # remove jpeg-turbo to avoid inclusion on arm64
+    # be true of any other locations on the path. To avoid conflicts, strip the
-  # remove webp and zstd to avoid inclusion on x86_64
+    # path down to the bare minimum (which, on macOS, won't include any
-  # curl from brew requires zstd, use system curl
+    # development dependencies).
-  brew remove --ignore-dependencies libpng libtiff libxcb libxau libxdmcp curl cairo lcms2 zstd
+    export PATH="$BUILD_PREFIX/bin:$(dirname $(which python3)):/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin"
-  if [[ "$CIBW_ARCHS" == "arm64" ]]; then
+    export CMAKE_PREFIX_PATH=$BUILD_PREFIX
-    brew remove --ignore-dependencies jpeg-turbo
-  else
-    brew remove --ignore-dependencies webp
-  fi
 
-  brew install pkg-config
+    # Ensure the basic structure of the build prefix directory exists.
+    mkdir -p "$BUILD_PREFIX/bin"
+    mkdir -p "$BUILD_PREFIX/lib"
+
+    # Ensure pkg-config is available
+    build_pkg_config
+    # Ensure cmake is available
+    python3 -m pip install cmake
 fi
 
 wrap_wheel_builder build
 
+# Return to the project root to finish the build
+popd > /dev/null
+
 # Append licenses
 for filename in wheels/dependency_licenses/*; do
   echo -e "\n\n----\n\n$(basename $filename | cut -f 1 -d '.')\n" | cat >> LICENSE

.github/workflows/wheels-test.ps1

@@ -9,14 +9,21 @@ if ("$venv" -like "*\cibw-run-*\pp*-win_amd64\*") {
     C:\vc_redist.x64.exe /install /quiet /norestart | Out-Null
 }
 $env:path += ";$pillow\winbuild\build\bin\"
-& "$venv\Scripts\activate.ps1"
+if (Test-Path $venv\Scripts\pypy.exe) {
+  $python = "pypy.exe"
+} else {
+  $python = "python.exe"
+}
 & reg add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\python.exe" /v "GlobalFlag" /t REG_SZ /d "0x02000000" /f
+if ("$venv" -like "*\cibw-run-*-win_amd64\*") {
+  & $venv\Scripts\$python -m pip install numpy
+}
 cd $pillow
-& python -VV
+& $venv\Scripts\$python -VV
 if (!$?) { exit $LASTEXITCODE }
-& python selftest.py
+& $venv\Scripts\$python selftest.py
 if (!$?) { exit $LASTEXITCODE }
-& python -m pytest -vx Tests\check_wheel.py
+& $venv\Scripts\$python -m pytest -vv -x Tests\check_wheel.py
 if (!$?) { exit $LASTEXITCODE }
-& python -m pytest -vx Tests
+& $venv\Scripts\$python -m pytest -vv -x Tests
 if (!$?) { exit $LASTEXITCODE }

.github/workflows/wheels-test.sh

@@ -1,12 +1,24 @@
 #!/bin/bash
 set -e
 
+# Ensure fribidi is installed by the system.
 if [[ "$OSTYPE" == "darwin"* ]]; then
-    brew install fribidi
+    # If Homebrew is on the path during the build, it may leak into the wheels.
-    export PKG_CONFIG_PATH="/usr/local/opt/openblas/lib/pkgconfig"
+    # However, we *do* need Homebrew to provide a copy of fribidi for
-    if [ -f /opt/homebrew/lib/libfribidi.dylib ]; then
+    # testing purposes so that we can verify the fribidi shim works as expected.
-        sudo cp /opt/homebrew/lib/libfribidi.dylib /usr/local/lib
+    if [[ "$(uname -m)" == "x86_64" ]]; then
+        HOMEBREW_PREFIX=/usr/local
+    else
+        HOMEBREW_PREFIX=/opt/homebrew
     fi
+    $HOMEBREW_PREFIX/bin/brew install fribidi
+
+    # Add the lib folder for fribidi so that the vendored library can be found.
+    # Don't use $HOMEWBREW_PREFIX/lib directly - use the lib folder where the
+    # installed copy of fribidi is cellared. This ensures we don't pick up the
+    # Homebrew version of any other library that we're dependent on (most notably,
+    # freetype).
+    export DYLD_LIBRARY_PATH=$(dirname $(realpath $HOMEBREW_PREFIX/lib/libfribidi.dylib))
 elif [ "${AUDITWHEEL_POLICY::9}" == "musllinux" ]; then
     apk add curl fribidi
 else
@@ -23,5 +35,5 @@ fi
 
 # Runs tests
 python3 selftest.py
-python3 -m pytest Tests/check_wheel.py
+python3 -m pytest -vv -x Tests/check_wheel.py
-python3 -m pytest
+python3 -m pytest -vv -x

.github/workflows/wheels.yml

@@ -13,6 +13,7 @@ on:
     paths:
       - ".ci/requirements-cibw.txt"
       - ".github/workflows/wheel*"
+      - "pyproject.toml"
       - "setup.py"
       - "wheels/*"
       - "winbuild/build_prepare.py"
@@ -23,6 +24,7 @@ on:
     paths:
       - ".ci/requirements-cibw.txt"
       - ".github/workflows/wheel*"
+      - "pyproject.toml"
       - "setup.py"
       - "wheels/*"
       - "winbuild/build_prepare.py"
@@ -40,61 +42,7 @@ env:
   FORCE_COLOR: 1
 
 jobs:
-  build-1-QEMU-emulated-wheels:
+  build-native-wheels:
-    if: github.event_name != 'schedule'
-    name: aarch64 ${{ matrix.python-version }} ${{ matrix.spec }}
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version:
-          - pp310
-          - cp3{9,10,11}
-          - cp3{12,13}
-        spec:
-          - manylinux2014
-          - manylinux_2_28
-          - musllinux
-        exclude:
-          - { python-version: pp310, spec: musllinux }
-
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          submodules: true
-
-      - uses: actions/setup-python@v5
-        with:
-          python-version: "3.x"
-
-      # https://github.com/docker/setup-qemu-action
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-
-      - name: Install cibuildwheel
-        run: |
-          python3 -m pip install -r .ci/requirements-cibw.txt
-
-      - name: Build wheels
-        run: |
-          python3 -m cibuildwheel --output-dir wheelhouse
-        env:
-          # Build only the currently selected Linux architecture (so we can
-          # parallelise for speed).
-          CIBW_ARCHS: "aarch64"
-          # Likewise, select only one Python version per job to speed this up.
-          CIBW_BUILD: "${{ matrix.python-version }}-${{ matrix.spec == 'musllinux' && 'musllinux' || 'manylinux' }}*"
-          CIBW_PRERELEASE_PYTHONS: True
-          # Extra options for manylinux.
-          CIBW_MANYLINUX_AARCH64_IMAGE: ${{ matrix.spec }}
-          CIBW_MANYLINUX_PYPY_AARCH64_IMAGE: ${{ matrix.spec }}
-
-      - uses: actions/upload-artifact@v4
-        with:
-          name: dist-qemu-${{ matrix.python-version }}-${{ matrix.spec }}
-          path: ./wheelhouse/*.whl
-
-  build-2-native-wheels:
     if: github.event_name != 'schedule' || github.repository_owner == 'python-pillow'
     name: ${{ matrix.name }}
     runs-on: ${{ matrix.os }}
@@ -110,12 +58,12 @@ jobs:
           - name: "macOS 10.13 x86_64"
             os: macos-13
             cibw_arch: x86_64
-            build: "cp3{12,13}*"
+            build: "cp3{12,13,14}*"
             macosx_deployment_target: "10.13"
           - name: "macOS 10.15 x86_64"
             os: macos-13
             cibw_arch: x86_64
-            build: "pp310*"
+            build: "pp3*"
             macosx_deployment_target: "10.15"
           - name: "macOS arm64"
             os: macos-latest
@@ -129,9 +77,18 @@ jobs:
             cibw_arch: x86_64
             build: "*manylinux*"
             manylinux: "manylinux_2_28"
+          - name: "manylinux2014 and musllinux aarch64"
+            os: ubuntu-24.04-arm
+            cibw_arch: aarch64
+          - name: "manylinux_2_28 aarch64"
+            os: ubuntu-24.04-arm
+            cibw_arch: aarch64
+            build: "*manylinux*"
+            manylinux: "manylinux_2_28"
     steps:
       - uses: actions/checkout@v4
         with:
+          persist-credentials: false
           submodules: true
 
       - uses: actions/setup-python@v5
@@ -148,10 +105,11 @@ jobs:
         env:
           CIBW_ARCHS: ${{ matrix.cibw_arch }}
           CIBW_BUILD: ${{ matrix.build }}
-          CIBW_FREE_THREADED_SUPPORT: True
+          CIBW_ENABLE: cpython-prerelease cpython-freethreading pypy
+          CIBW_MANYLINUX_AARCH64_IMAGE: ${{ matrix.manylinux }}
+          CIBW_MANYLINUX_PYPY_AARCH64_IMAGE: ${{ matrix.manylinux }}
           CIBW_MANYLINUX_PYPY_X86_64_IMAGE: ${{ matrix.manylinux }}
           CIBW_MANYLINUX_X86_64_IMAGE: ${{ matrix.manylinux }}
-          CIBW_PRERELEASE_PYTHONS: True
           MACOSX_DEPLOYMENT_TARGET: ${{ matrix.macosx_deployment_target }}
 
       - uses: actions/upload-artifact@v4
@@ -162,20 +120,26 @@ jobs:
   windows:
     if: github.event_name != 'schedule' || github.repository_owner == 'python-pillow'
     name: Windows ${{ matrix.cibw_arch }}
-    runs-on: windows-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         include:
           - cibw_arch: x86
+            os: windows-latest
           - cibw_arch: AMD64
+            os: windows-latest
           - cibw_arch: ARM64
+            os: windows-11-arm
     steps:
       - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
 
       - name: Checkout extra test images
         uses: actions/checkout@v4
         with:
+          persist-credentials: false
           repository: python-pillow/test-images
           path: Tests\test-images
 
@@ -222,8 +186,7 @@ jobs:
           CIBW_ARCHS: ${{ matrix.cibw_arch }}
           CIBW_BEFORE_ALL: "{package}\\winbuild\\build\\build_dep_all.cmd"
           CIBW_CACHE_PATH: "C:\\cibw"
-          CIBW_FREE_THREADED_SUPPORT: True
+          CIBW_ENABLE: cpython-prerelease cpython-freethreading pypy
-          CIBW_PRERELEASE_PYTHONS: True
           CIBW_TEST_SKIP: "*-win_arm64"
           CIBW_TEST_COMMAND: 'docker run --rm
             -v {project}:C:\pillow
@@ -251,13 +214,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
+      with:
+        persist-credentials: false
 
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
         python-version: "3.x"
-        cache: pip
-        cache-dependency-path: "Makefile"
 
     - run: make sdist
 
@@ -268,7 +231,7 @@ jobs:
 
   scientific-python-nightly-wheels-publish:
     if: github.repository_owner == 'python-pillow' && (github.event_name == 'schedule' || github.event_name == 'workflow_dispatch')
-    needs: [build-2-native-wheels, windows]
+    needs: [build-native-wheels, windows]
     runs-on: ubuntu-latest
     name: Upload wheels to scientific-python-nightly-wheels
     steps:
@@ -278,14 +241,14 @@ jobs:
           path: dist
           merge-multiple: true
       - name: Upload wheels to scientific-python-nightly-wheels
-        uses: scientific-python/upload-nightly-action@82396a2ed4269ba06c6b2988bb4fd568ef3c3d6b # 0.6.1
+        uses: scientific-python/upload-nightly-action@b36e8c0c10dbcfd2e05bf95f17ef8c14fd708dbf # 0.6.2
         with:
           artifacts_path: dist
           anaconda_nightly_upload_token: ${{ secrets.ANACONDA_ORG_UPLOAD_TOKEN }}
 
   pypi-publish:
     if: github.repository_owner == 'python-pillow' && github.event_name == 'push' && startsWith(github.ref, 'refs/tags')
-    needs: [build-1-QEMU-emulated-wheels, build-2-native-wheels, windows, sdist]
+    needs: [build-native-wheels, windows, sdist]
     runs-on: ubuntu-latest
     name: Upload release to PyPI
     environment:

.github/zizmor.yml

@@ -0,0 +1,7 @@
+# Configuration for the zizmor static analysis tool, run via pre-commit in CI
+# https://woodruffw.github.io/zizmor/configuration/
+rules:
+  unpinned-uses:
+    config:
+      policies:
+        "*": ref-pin

.gitignore

@@ -19,6 +19,7 @@ lib64/
 parts/
 sdist/
 var/
+wheelhouse/
 *.egg-info/
 .installed.cfg
 *.egg
@@ -90,5 +91,9 @@ Tests/images/msp
 Tests/images/picins
 Tests/images/sunraster
 
+# Test and dependency downloads
+pillow-depends-main.zip
+pillow-test-images.zip
+
 # pyinstaller
 *.spec

.pre-commit-config.yaml

@@ -1,17 +1,17 @@
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.6.9
+    rev: v0.12.0
     hooks:
-      - id: ruff
+      - id: ruff-check
         args: [--exit-non-zero-on-fix]
 
   - repo: https://github.com/psf/black-pre-commit-mirror
-    rev: 24.8.0
+    rev: 25.1.0
     hooks:
       - id: black
 
   - repo: https://github.com/PyCQA/bandit
-    rev: 1.7.10
+    rev: 1.8.5
     hooks:
     - id: bandit
       args: [--severity-level=high]
@@ -24,7 +24,7 @@ repos:
         exclude: (Makefile$|\.bat$|\.cmake$|\.eps$|\.fits$|\.gd$|\.opt$)
 
   - repo: https://github.com/pre-commit/mirrors-clang-format
-    rev: v19.1.1
+    rev: v20.1.6
     hooks:
       - id: clang-format
         types: [c]
@@ -44,36 +44,42 @@ repos:
       - id: check-json
       - id: check-toml
       - id: check-yaml
+        args: [--allow-multiple-documents]
       - id: end-of-file-fixer
         exclude: ^Tests/images/
       - id: trailing-whitespace
         exclude: ^.github/.*TEMPLATE|^Tests/(fonts|images)/
 
   - repo: https://github.com/python-jsonschema/check-jsonschema
-    rev: 0.29.3
+    rev: 0.33.1
     hooks:
       - id: check-github-workflows
       - id: check-readthedocs
       - id: check-renovate
 
+  - repo: https://github.com/woodruffw/zizmor-pre-commit
+    rev: v1.9.0
+    hooks:
+      - id: zizmor
+
   - repo: https://github.com/sphinx-contrib/sphinx-lint
     rev: v1.0.0
     hooks:
       - id: sphinx-lint
 
   - repo: https://github.com/tox-dev/pyproject-fmt
-    rev: 2.2.4
+    rev: v2.6.0
     hooks:
       - id: pyproject-fmt
 
   - repo: https://github.com/abravalheri/validate-pyproject
-    rev: v0.20.2
+    rev: v0.24.1
     hooks:
       - id: validate-pyproject
         additional_dependencies: [trove-classifiers>=2024.10.12]
 
   - repo: https://github.com/tox-dev/tox-ini-fmt
-    rev: 1.4.1
+    rev: 1.5.0
     hooks:
       - id: tox-ini-fmt
 

.readthedocs.yml

@@ -1,5 +1,8 @@
 version: 2
 
+sphinx:
+  configuration: docs/conf.py
+
 formats: [pdf]
 
 build:

CHANGES.rst

@@ -2,9 +2,19 @@
 Changelog (Pillow)
 ==================
 
-11.0.0 (unreleased)
+11.1.0 and newer
+----------------
+
+See GitHub Releases:
+
+- https://github.com/python-pillow/Pillow/releases
+
+11.0.0 (2024-10-15)
 -------------------
 
+- Update licence to MIT-CMU #8460
+  [hugovk]
+
 - Conditionally define ImageCms type hint to avoid requiring core #8197
   [radarhere]
 

LICENSE

@@ -5,9 +5,9 @@ The Python Imaging Library (PIL) is
 
 Pillow is the friendly PIL fork. It is
 
-    Copyright © 2010-2024 by Jeffrey A. Clark and contributors
+    Copyright © 2010 by Jeffrey A. Clark and contributors
 
-Like PIL, Pillow is licensed under the open source HPND License:
+Like PIL, Pillow is licensed under the open source MIT-CMU License:
 
 By obtaining, using, and/or copying this software and/or its associated
 documentation, you agree that you have read, understood, and will comply

MANIFEST.in

@@ -20,7 +20,6 @@ graft docs
 graft _custom_build
 
 # build/src control detritus
-exclude .appveyor.yml
 exclude .clang-format
 exclude .coveragerc
 exclude .editorconfig

Makefile

@@ -23,6 +23,10 @@ doc html:
 htmlview:
 	$(MAKE) -C docs htmlview
 
+.PHONY: htmllive
+htmllive:
+	$(MAKE) -C docs htmllive
+
 .PHONY: doccheck
 doccheck:
 	$(MAKE) doc
@@ -43,6 +47,7 @@ help:
 	@echo "  docserve           run an HTTP server on the docs directory"
 	@echo "  html               make HTML docs"
 	@echo "  htmlview           open the index page built by the html target in your browser"
+	@echo "  htmllive           rebuild and reload HTML files in your browser"
 	@echo "  install            make and install"
 	@echo "  install-coverage   make and install with C coverage"
 	@echo "  lint               run the lint checks"
@@ -92,13 +97,27 @@ test:
 	python3 -c "import pytest" > /dev/null 2>&1 || python3 -m pip install pytest
 	python3 -m pytest -qq
 
+.PHONY: test-p
+test-p:
+	python3 -c "import xdist" > /dev/null 2>&1 || python3 -m pip install pytest-xdist
+	python3 -m pytest -qq -n auto
+
+
 .PHONY: valgrind
 valgrind:
 	python3 -c "import pytest_valgrind" > /dev/null 2>&1 || python3 -m pip install pytest-valgrind
-	PYTHONMALLOC=malloc valgrind --suppressions=Tests/oss-fuzz/python.supp --leak-check=no \
+	PILLOW_VALGRIND_TEST=true PYTHONMALLOC=malloc valgrind --suppressions=Tests/oss-fuzz/python.supp --leak-check=no \
             --log-file=/tmp/valgrind-output \
             python3 -m pytest --no-memcheck -vv --valgrind --valgrind-log=/tmp/valgrind-output
 
+.PHONY: valgrind-leak
+valgrind-leak:
+	python3 -c "import pytest_valgrind" > /dev/null 2>&1 || python3 -m pip install pytest-valgrind
+	PILLOW_VALGRIND_TEST=true PYTHONMALLOC=malloc valgrind --suppressions=Tests/oss-fuzz/python.supp \
+	    --leak-check=full --show-leak-kinds=definite --errors-for-leak-kinds=definite \
+            --log-file=/tmp/valgrind-output \
+            python3 -m pytest -vv --valgrind --valgrind-log=/tmp/valgrind-output
+
 .PHONY: readme
 readme:
 	python3 -c "import markdown2" > /dev/null 2>&1 || python3 -m pip install markdown2

README.md

@@ -42,9 +42,6 @@ As of 2019, Pillow development is
             <a href="https://github.com/python-pillow/Pillow/actions/workflows/test-docker.yml"><img
                 alt="GitHub Actions build status (Test Docker)"
                 src="https://github.com/python-pillow/Pillow/workflows/Test%20Docker/badge.svg"></a>
-            <a href="https://ci.appveyor.com/project/python-pillow/Pillow"><img
-                alt="AppVeyor CI build status (Windows)"
-                src="https://img.shields.io/appveyor/build/python-pillow/Pillow/main.svg?label=Windows%20build"></a>
             <a href="https://github.com/python-pillow/Pillow/actions/workflows/wheels.yml"><img
                 alt="GitHub Actions build status (Wheels)"
                 src="https://github.com/python-pillow/Pillow/workflows/Wheels/badge.svg"></a>
@@ -98,7 +95,7 @@ This library provides extensive file format support, an efficient internal repre
 
 The core image library is designed for fast access to data stored in a few basic pixel formats. It should provide a solid foundation for a general image processing tool.
 
-## More Information
+## More information
 
 - [Documentation](https://pillow.readthedocs.io/)
   - [Installation](https://pillow.readthedocs.io/en/latest/installation/basic-installation.html)
@@ -107,9 +104,9 @@ The core image library is designed for fast access to data stored in a few basic
   - [Issues](https://github.com/python-pillow/Pillow/issues)
   - [Pull requests](https://github.com/python-pillow/Pillow/pulls)
 - [Release notes](https://pillow.readthedocs.io/en/stable/releasenotes/index.html)
-- [Changelog](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst)
+- [Changelog](https://github.com/python-pillow/Pillow/releases)
   - [Pre-fork](https://github.com/python-pillow/Pillow/blob/main/CHANGES.rst#pre-fork)
 
-## Report a Vulnerability
+## Report a vulnerability
 
 To report a security vulnerability, please follow the procedure described in the [Tidelift security policy](https://tidelift.com/docs/security).

RELEASING.md

@@ -1,46 +1,25 @@
-# Release Checklist
+# Release checklist
 
 See https://pillow.readthedocs.io/en/stable/releasenotes/versioning.html for
 information about how the version numbers line up with releases.
 
-## Main Release
+## Main release
 
 Released quarterly on January 2nd, April 1st, July 1st and October 15th.
 
-* [ ] Open a release ticket e.g. https://github.com/python-pillow/Pillow/issues/3154
+* [ ] Create a new issue and select the "Maintainers only: Release" template.
-* [ ] Develop and prepare release in `main` branch.
+
-* [ ] Check [GitHub Actions](https://github.com/python-pillow/Pillow/actions) and [AppVeyor](https://ci.appveyor.com/project/python-pillow/Pillow) to confirm passing tests in `main` branch.
+## Point release
-* [ ] Check that all the wheel builds pass the tests in the [GitHub Actions "Wheels" workflow](https://github.com/python-pillow/Pillow/actions/workflows/wheels.yml) jobs by manually triggering them.
-* [ ] In compliance with [PEP 440](https://peps.python.org/pep-0440/), update version identifier in `src/PIL/_version.py`
-* [ ] Update `CHANGES.rst`.
-* [ ] Run pre-release check via `make release-test` in a freshly cloned repo.
-* [ ] Create branch and tag for release e.g.:
-  ```bash
-  git branch 5.2.x
-  git tag 5.2.0
-  git push --tags
-  ```
-* [ ] Check the [GitHub Actions "Wheels" workflow](https://github.com/python-pillow/Pillow/actions/workflows/wheels.yml)
-  has passed, including the "Upload release to PyPI" job. This will have been triggered
-  by the new tag.
-* [ ] Publish the [release on GitHub](https://github.com/python-pillow/Pillow/releases).
-* [ ] In compliance with [PEP 440](https://peps.python.org/pep-0440/),
-      increment and append `.dev0` to version identifier in `src/PIL/_version.py` and then:
-  ```bash
-  git push --all
-   ```
-## Point Release
 
 Released as needed for security, installation or critical bug fixes.
 
 * [ ] Make necessary changes in `main` branch.
-* [ ] Update `CHANGES.rst`.
 * [ ] Check out release branch e.g.:
   ```bash
   git checkout -t remotes/origin/5.2.x
   ```
 * [ ] Cherry pick individual commits from `main` branch to release branch e.g. `5.2.x`, then `git push`.
-* [ ] Check [GitHub Actions](https://github.com/python-pillow/Pillow/actions) and [AppVeyor](https://ci.appveyor.com/project/python-pillow/Pillow) to confirm passing tests in release branch e.g. `5.2.x`.
+* [ ] Check [GitHub Actions](https://github.com/python-pillow/Pillow/actions) to confirm passing tests in release branch e.g. `5.2.x`.
 * [ ] In compliance with [PEP 440](https://peps.python.org/pep-0440/), update version identifier in `src/PIL/_version.py`
 * [ ] Run pre-release check via `make release-test`.
 * [ ] Create tag for release e.g.:
@@ -60,7 +39,7 @@ Released as needed for security, installation or critical bug fixes.
   git push
   ```
 
-## Embargoed Release
+## Embargoed release
 
 Released as needed privately to individual vendors for critical security-related bug fixes.
 
@@ -84,7 +63,7 @@ Released as needed privately to individual vendors for critical security-related
   git push origin 2.5.x
   ```
 
-## Publicize Release
+## Publicize release
 
 * [ ] Announce release availability via [Mastodon](https://fosstodon.org/@pillow) e.g. https://fosstodon.org/@pillow/110639450470725321
 
@@ -92,7 +71,7 @@ Released as needed privately to individual vendors for critical security-related
 
 * [ ] Make sure the [default version for Read the Docs](https://pillow.readthedocs.io/en/stable/) is up-to-date with the release changes
 
-## Docker Images
+## Docker images
 
 * [ ] Update Pillow in the Docker Images repository
   ```bash

Tests/README.rst

@@ -1,4 +1,4 @@
-Pillow Tests
+Pillow tests
 ============
 
 Test scripts are named ``test_xxx.py``. Helper classes and functions can be found in ``helper.py``.

Tests/check_j2k_overflow.py

@@ -9,6 +9,6 @@ from PIL import Image
 
 def test_j2k_overflow(tmp_path: Path) -> None:
     im = Image.new("RGBA", (1024, 131584))
-    target = str(tmp_path / "temp.jpc")
+    target = tmp_path / "temp.jpc"
     with pytest.raises(OSError):
         im.save(target)

Tests/check_large_memory.py

@@ -32,7 +32,7 @@ pytestmark = pytest.mark.skipif(sys.maxsize <= 2**32, reason="requires 64-bit sy
 
 
 def _write_png(tmp_path: Path, xdim: int, ydim: int) -> None:
-    f = str(tmp_path / "temp.png")
+    f = tmp_path / "temp.png"
     im = Image.new("L", (xdim, ydim), 0)
     im.save(f)
 

Tests/check_large_memory_numpy.py

@@ -28,7 +28,7 @@ pytestmark = pytest.mark.skipif(sys.maxsize <= 2**32, reason="requires 64-bit sy
 def _write_png(tmp_path: Path, xdim: int, ydim: int) -> None:
     dtype = np.uint8
     a = np.zeros((xdim, ydim), dtype=dtype)
-    f = str(tmp_path / "temp.png")
+    f = tmp_path / "temp.png"
     im = Image.fromarray(a, "L")
     im.save(f)
 

Tests/check_png_dos.py

@@ -3,26 +3,25 @@ from __future__ import annotations
 import zlib
 from io import BytesIO
 
+import pytest
+
 from PIL import Image, ImageFile, PngImagePlugin
 
 TEST_FILE = "Tests/images/png_decompression_dos.png"
 
 
-def test_ignore_dos_text() -> None:
+def test_ignore_dos_text(monkeypatch: pytest.MonkeyPatch) -> None:
-    ImageFile.LOAD_TRUNCATED_IMAGES = True
+    monkeypatch.setattr(ImageFile, "LOAD_TRUNCATED_IMAGES", True)
 
-    try:
+    with Image.open(TEST_FILE) as im:
-        im = Image.open(TEST_FILE)
         im.load()
-    finally:
-        ImageFile.LOAD_TRUNCATED_IMAGES = False
 
-    assert isinstance(im, PngImagePlugin.PngImageFile)
+        assert isinstance(im, PngImagePlugin.PngImageFile)
-    for s in im.text.values():
+        for s in im.text.values():
-        assert len(s) < 1024 * 1024, "Text chunk larger than 1M"
+            assert len(s) < 1024 * 1024, "Text chunk larger than 1M"
 
-    for s in im.info.values():
+        for s in im.info.values():
-        assert len(s) < 1024 * 1024, "Text chunk larger than 1M"
+            assert len(s) < 1024 * 1024, "Text chunk larger than 1M"
 
 
 def test_dos_text() -> None:

Tests/check_wheel.py

@@ -1,20 +1,28 @@
 from __future__ import annotations
 
+import platform
 import sys
 
 from PIL import features
 
+from .helper import is_pypy
+
 
 def test_wheel_modules() -> None:
-    expected_modules = {"pil", "tkinter", "freetype2", "littlecms2", "webp"}
+    expected_modules = {"pil", "tkinter", "freetype2", "littlecms2", "webp", "avif"}
 
-    # tkinter is not available in cibuildwheel installed CPython on Windows
+    if sys.platform == "win32":
-    try:
+        # tkinter is not available in cibuildwheel installed CPython on Windows
-        import tkinter
+        try:
+            import tkinter
 
-        assert tkinter
+            assert tkinter
-    except ImportError:
+        except ImportError:
-        expected_modules.remove("tkinter")
+            expected_modules.remove("tkinter")
+
+        # libavif is not available on Windows for ARM64 architectures
+        if platform.machine() == "ARM64":
+            expected_modules.remove("avif")
 
     assert set(features.get_supported_modules()) == expected_modules
 
@@ -34,10 +42,13 @@ def test_wheel_features() -> None:
         "fribidi",
         "harfbuzz",
         "libjpeg_turbo",
+        "zlib_ng",
         "xcb",
     }
 
     if sys.platform == "win32":
         expected_features.remove("xcb")
+    elif sys.platform == "darwin" and not is_pypy() and platform.processor() != "arm":
+        expected_features.remove("zlib_ng")
 
     assert set(features.get_supported_features()) == expected_features

Tests/helper.py

@@ -9,11 +9,11 @@ import os
 import shutil
 import subprocess
 import sys
-import sysconfig
 import tempfile
 from collections.abc import Sequence
 from functools import lru_cache
 from io import BytesIO
+from pathlib import Path
 from typing import Any, Callable
 
 import pytest
@@ -96,7 +96,10 @@ def assert_image_equal(a: Image.Image, b: Image.Image, msg: str | None = None) -
 
 
 def assert_image_equal_tofile(
-    a: Image.Image, filename: str, msg: str | None = None, mode: str | None = None
+    a: Image.Image,
+    filename: str | Path,
+    msg: str | None = None,
+    mode: str | None = None,
 ) -> None:
     with Image.open(filename) as img:
         if mode:
@@ -137,21 +140,14 @@ def assert_image_similar(
 
 def assert_image_similar_tofile(
     a: Image.Image,
-    filename: str,
+    filename: str | Path,
     epsilon: float,
     msg: str | None = None,
-    mode: str | None = None,
 ) -> None:
     with Image.open(filename) as img:
-        if mode:
-            img = img.convert(mode)
         assert_image_similar(a, img, epsilon, msg)
 
 
-def assert_all_same(items: Sequence[Any], msg: str | None = None) -> None:
-    assert items.count(items[0]) == len(items), msg
-
-
 def assert_not_all_same(items: Sequence[Any], msg: str | None = None) -> None:
     assert items.count(items[0]) != len(items), msg
 
@@ -165,6 +161,12 @@ def assert_tuple_approx_equal(
             pytest.fail(msg + ": " + repr(actuals) + " != " + repr(targets))
 
 
+def timeout_unless_slower_valgrind(timeout: float) -> pytest.MarkDecorator:
+    if "PILLOW_VALGRIND_TEST" in os.environ:
+        return pytest.mark.pil_noop_mark()
+    return pytest.mark.timeout(timeout)
+
+
 def skip_unless_feature(feature: str) -> pytest.MarkDecorator:
     reason = f"{feature} not available"
     return pytest.mark.skipif(not features.check(feature), reason=reason)
@@ -270,7 +272,7 @@ def _cached_hopper(mode: str) -> Image.Image:
     else:
         im = hopper()
     if mode.startswith("BGR;"):
-        with pytest.warns(DeprecationWarning):
+        with pytest.warns(DeprecationWarning, match="BGR;"):
             im = im.convert(mode)
     else:
         try:
@@ -327,16 +329,7 @@ def magick_command() -> list[str] | None:
     return None
 
 
-def on_appveyor() -> bool:
-    return "APPVEYOR" in os.environ
-
-
-def on_github_actions() -> bool:
-    return "GITHUB_ACTIONS" in os.environ
-
-
 def on_ci() -> bool:
-    # GitHub Actions and AppVeyor have "CI"
     return "CI" in os.environ
 
 
@@ -358,10 +351,6 @@ def is_pypy() -> bool:
     return hasattr(sys, "pypy_translation_info")
 
 
-def is_mingw() -> bool:
-    return sysconfig.get_platform() == "mingw"
-
-
 class CachedProperty:
     def __init__(self, func: Callable[[Any], Any]) -> None:
         self.func = func

Tests/images/full_gimp_palette.gpl

@@ -0,0 +1,260 @@
+GIMP Palette
+Name: fullpalette
+Columns: 4
+#
+  0   0   0     Index 0
+  1   1   1     Index 1
+  2   2   2     Index 2
+  3   3   3     Index 3
+  4   4   4     Index 4
+  5   5   5     Index 5
+  6   6   6     Index 6
+  7   7   7     Index 7
+  8   8   8     Index 8
+  9   9   9     Index 9
+ 10  10  10     Index 10
+ 11  11  11     Index 11
+ 12  12  12     Index 12
+ 13  13  13     Index 13
+ 14  14  14     Index 14
+ 15  15  15     Index 15
+ 16  16  16     Index 16
+ 17  17  17     Index 17
+ 18  18  18     Index 18
+ 19  19  19     Index 19
+ 20  20  20     Index 20
+ 21  21  21     Index 21
+ 22  22  22     Index 22
+ 23  23  23     Index 23
+ 24  24  24     Index 24
+ 25  25  25     Index 25
+ 26  26  26     Index 26
+ 27  27  27     Index 27
+ 28  28  28     Index 28
+ 29  29  29     Index 29
+ 30  30  30     Index 30
+ 31  31  31     Index 31
+ 32  32  32     Index 32
+ 33  33  33     Index 33
+ 34  34  34     Index 34
+ 35  35  35     Index 35
+ 36  36  36     Index 36
+ 37  37  37     Index 37
+ 38  38  38     Index 38
+ 39  39  39     Index 39
+ 40  40  40     Index 40
+ 41  41  41     Index 41
+ 42  42  42     Index 42
+ 43  43  43     Index 43
+ 44  44  44     Index 44
+ 45  45  45     Index 45
+ 46  46  46     Index 46
+ 47  47  47     Index 47
+ 48  48  48     Index 48
+ 49  49  49     Index 49
+ 50  50  50     Index 50
+ 51  51  51     Index 51
+ 52  52  52     Index 52
+ 53  53  53     Index 53
+ 54  54  54     Index 54
+ 55  55  55     Index 55
+ 56  56  56     Index 56
+ 57  57  57     Index 57
+ 58  58  58     Index 58
+ 59  59  59     Index 59
+ 60  60  60     Index 60
+ 61  61  61     Index 61
+ 62  62  62     Index 62
+ 63  63  63     Index 63
+ 64  64  64     Index 64
+ 65  65  65     Index 65
+ 66  66  66     Index 66
+ 67  67  67     Index 67
+ 68  68  68     Index 68
+ 69  69  69     Index 69
+ 70  70  70     Index 70
+ 71  71  71     Index 71
+ 72  72  72     Index 72
+ 73  73  73     Index 73
+ 74  74  74     Index 74
+ 75  75  75     Index 75
+ 76  76  76     Index 76
+ 77  77  77     Index 77
+ 78  78  78     Index 78
+ 79  79  79     Index 79
+ 80  80  80     Index 80
+ 81  81  81     Index 81
+ 82  82  82     Index 82
+ 83  83  83     Index 83
+ 84  84  84     Index 84
+ 85  85  85     Index 85
+ 86  86  86     Index 86
+ 87  87  87     Index 87
+ 88  88  88     Index 88
+ 89  89  89     Index 89
+ 90  90  90     Index 90
+ 91  91  91     Index 91
+ 92  92  92     Index 92
+ 93  93  93     Index 93
+ 94  94  94     Index 94
+ 95  95  95     Index 95
+ 96  96  96     Index 96
+ 97  97  97     Index 97
+ 98  98  98     Index 98
+ 99  99  99     Index 99
+100 100 100     Index 100
+101 101 101     Index 101
+102 102 102     Index 102
+103 103 103     Index 103
+104 104 104     Index 104
+105 105 105     Index 105
+106 106 106     Index 106
+107 107 107     Index 107
+108 108 108     Index 108
+109 109 109     Index 109
+110 110 110     Index 110
+111 111 111     Index 111
+112 112 112     Index 112
+113 113 113     Index 113
+114 114 114     Index 114
+115 115 115     Index 115
+116 116 116     Index 116
+117 117 117     Index 117
+118 118 118     Index 118
+119 119 119     Index 119
+120 120 120     Index 120
+121 121 121     Index 121
+122 122 122     Index 122
+123 123 123     Index 123
+124 124 124     Index 124
+125 125 125     Index 125
+126 126 126     Index 126
+127 127 127     Index 127
+128 128 128     Index 128
+129 129 129     Index 129
+130 130 130     Index 130
+131 131 131     Index 131
+132 132 132     Index 132
+133 133 133     Index 133
+134 134 134     Index 134
+135 135 135     Index 135
+136 136 136     Index 136
+137 137 137     Index 137
+138 138 138     Index 138
+139 139 139     Index 139
+140 140 140     Index 140
+141 141 141     Index 141
+142 142 142     Index 142
+143 143 143     Index 143
+144 144 144     Index 144
+145 145 145     Index 145
+146 146 146     Index 146
+147 147 147     Index 147
+148 148 148     Index 148
+149 149 149     Index 149
+150 150 150     Index 150
+151 151 151     Index 151
+152 152 152     Index 152
+153 153 153     Index 153
+154 154 154     Index 154
+155 155 155     Index 155
+156 156 156     Index 156
+157 157 157     Index 157
+158 158 158     Index 158
+159 159 159     Index 159
+160 160 160     Index 160
+161 161 161     Index 161
+162 162 162     Index 162
+163 163 163     Index 163
+164 164 164     Index 164
+165 165 165     Index 165
+166 166 166     Index 166
+167 167 167     Index 167
+168 168 168     Index 168
+169 169 169     Index 169
+170 170 170     Index 170
+171 171 171     Index 171
+172 172 172     Index 172
+173 173 173     Index 173
+174 174 174     Index 174
+175 175 175     Index 175
+176 176 176     Index 176
+177 177 177     Index 177
+178 178 178     Index 178
+179 179 179     Index 179
+180 180 180     Index 180
+181 181 181     Index 181
+182 182 182     Index 182
+183 183 183     Index 183
+184 184 184     Index 184
+185 185 185     Index 185
+186 186 186     Index 186
+187 187 187     Index 187
+188 188 188     Index 188
+189 189 189     Index 189
+190 190 190     Index 190
+191 191 191     Index 191
+192 192 192     Index 192
+193 193 193     Index 193
+194 194 194     Index 194
+195 195 195     Index 195
+196 196 196     Index 196
+197 197 197     Index 197
+198 198 198     Index 198
+199 199 199     Index 199
+200 200 200     Index 200
+201 201 201     Index 201
+202 202 202     Index 202
+203 203 203     Index 203
+204 204 204     Index 204
+205 205 205     Index 205
+206 206 206     Index 206
+207 207 207     Index 207
+208 208 208     Index 208
+209 209 209     Index 209
+210 210 210     Index 210
+211 211 211     Index 211
+212 212 212     Index 212
+213 213 213     Index 213
+214 214 214     Index 214
+215 215 215     Index 215
+216 216 216     Index 216
+217 217 217     Index 217
+218 218 218     Index 218
+219 219 219     Index 219
+220 220 220     Index 220
+221 221 221     Index 221
+222 222 222     Index 222
+223 223 223     Index 223
+224 224 224     Index 224
+225 225 225     Index 225
+226 226 226     Index 226
+227 227 227     Index 227
+228 228 228     Index 228
+229 229 229     Index 229
+230 230 230     Index 230
+231 231 231     Index 231
+232 232 232     Index 232
+233 233 233     Index 233
+234 234 234     Index 234
+235 235 235     Index 235
+236 236 236     Index 236
+237 237 237     Index 237
+238 238 238     Index 238
+239 239 239     Index 239
+240 240 240     Index 240
+241 241 241     Index 241
+242 242 242     Index 242
+243 243 243     Index 243
+244 244 244     Index 244
+245 245 245     Index 245
+246 246 246     Index 246
+247 247 247     Index 247
+248 248 248     Index 248
+249 249 249     Index 249
+250 250 250     Index 250
+251 251 251     Index 251
+252 252 252     Index 252
+253 253 253     Index 253
+254 254 254     Index 254
+255 255 255     Index 255

Tests/images/hopper_bpp2.xpm

@@ -0,0 +1,390 @@
+/* XPM */
+static const char *hopper[] = {
+/* columns rows colors chars-per-pixel */
+"128 128 256 2 ",
+"   c #0C0C0D",
+".  c #0A0708",
+"X  c #1C0A04",
+"o  c #120B0C",
+"O  c #170808",
+"+  c #0B110D",
+"@  c #16120C",
+"#  c #0D0D12",
+"$  c #0D0D1A",
+"%  c #070A16",
+"&  c #120D13",
+"*  c #120E1A",
+"=  c #1A0C16",
+"-  c #0D1114",
+";  c #0D121B",
+":  c #091518",
+">  c #131215",
+",  c #14131B",
+"<  c #1A141C",
+"1  c #1B191D",
+"2  c #191517",
+"3  c #250906",
+"4  c #390904",
+"5  c #27150A",
+"6  c #250A18",
+"7  c #251719",
+"8  c #361410",
+"9  c #342215",
+"0  c #0C0C24",
+"q  c #0C0D2B",
+"w  c #060927",
+"e  c #130D24",
+"r  c #150D2A",
+"t  c #0C1225",
+"y  c #0C122C",
+"u  c #061227",
+"i  c #151422",
+"p  c #1A1522",
+"a  c #1C1B23",
+"s  c #13132C",
+"d  c #19172A",
+"f  c #0C0D35",
+"g  c #130E37",
+"h  c #0D1436",
+"j  c #131333",
+"k  c #13143C",
+"l  c #191838",
+"z  c #241926",
+"x  c #231B38",
+"c  c #2E1226",
+"v  c #372628",
+"b  c #292538",
+"n  c #362B37",
+"m  c #2F2A2F",
+"M  c #1A2233",
+"N  c #4C150D",
+"B  c #740F10",
+"V  c #512916",
+"C  c #793419",
+"Z  c #6D2C13",
+"A  c #4E1524",
+"S  c #741624",
+"D  c #4E332E",
+"F  c #6F3629",
+"G  c #574438",
+"H  c #744831",
+"J  c #775A2E",
+"K  c #0E1444",
+"L  c #141443",
+"P  c #1B1A44",
+"I  c #14144B",
+"U  c #1A1B4C",
+"Y  c #181747",
+"T  c #1B1B53",
+"R  c #181955",
+"E  c #0F0E44",
+"W  c #231C46",
+"Q  c #231C56",
+"!  c #1C234E",
+"~  c #272547",
+"^  c #2E2F52",
+"/  c #2E3765",
+"(  c #483947",
+")  c #742D4A",
+"_  c #364970",
+"`  c #534A51",
+"'  c #6E534D",
+"]  c #756654",
+"[  c #53556D",
+"{  c #6B5B69",
+"}  c #746B71",
+"|  c #5E616A",
+" . c #880C15",
+".. c #881217",
+"X. c #8D0D0F",
+"o. c #8B3218",
+"O. c #8C3828",
+"+. c #AC2F30",
+"@. c #9A1825",
+"#. c #CE202B",
+"$. c #8A452A",
+"%. c #974A2B",
+"&. c #884934",
+"*. c #954B35",
+"=. c #995539",
+"-. c #895736",
+";. c #A75738",
+":. c #A84E30",
+">. c #996839",
+",. c #B6683B",
+"<. c #AE6835",
+"1. c #A35419",
+"2. c #D26D19",
+"3. c #CC712E",
+"4. c #CD6922",
+"5. c #A83152",
+"6. c #985845",
+"7. c #8A5748",
+"8. c #AE5A46",
+"9. c #916A4F",
+"0. c #A96647",
+"q. c #B76947",
+"w. c #BA744A",
+"e. c #B97757",
+"r. c #AB6F53",
+"t. c #8D736D",
+"y. c #B27669",
+"u. c #91566F",
+"i. c #C56B4A",
+"p. c #C8764B",
+"a. c #C87856",
+"s. c #D47A59",
+"d. c #C96E53",
+"f. c #C77C64",
+"g. c #D17969",
+"h. c #D45D68",
+"j. c #C52A46",
+"k. c #D58932",
+"l. c #B38355",
+"z. c #968775",
+"x. c #BA8667",
+"c. c #B38C74",
+"v. c #AB9C73",
+"b. c #C9845A",
+"n. c #D7855B",
+"m. c #D39454",
+"M. c #E28C5B",
+"N. c #F7B251",
+"B. c #C78867",
+"V. c #D98866",
+"C. c #D8956A",
+"Z. c #C79878",
+"A. c #D89876",
+"S. c #CD8C70",
+"D. c #E38A68",
+"F. c #E5956A",
+"G. c #E79776",
+"H. c #ED9176",
+"J. c #D6A371",
+"K. c #E8A379",
+"L. c #F3A677",
+"P. c #D8A05D",
+"I. c #3D65AB",
+"U. c #3F67B2",
+"Y. c #3B5C9C",
+"T. c #506796",
+"R. c #72748D",
+"E. c #446AAE",
+"W. c #4869A9",
+"Q. c #4166B2",
+"!. c #436BB3",
+"~. c #496EB4",
+"^. c #476DB9",
+"/. c #4A71B6",
+"(. c #4C73BA",
+"). c #4772B6",
+"_. c #5176BC",
+"`. c #547BBD",
+"'. c #577BB7",
+"]. c #5572A9",
+"[. c #6B7CAA",
+"{. c #505B8C",
+"}. c #557CC1",
+"|. c #4C73C2",
+" X c #897987",
+".X c #9F7593",
+"XX c #C46B87",
+"oX c #5981BF",
+"OX c #5884BD",
+"+X c #768AB9",
+"@X c #7288B5",
+"#X c #5C83C3",
+"$X c #5D8AC5",
+"%X c #6186C5",
+"&X c #648AC6",
+"*X c #6B8DC6",
+"=X c #668BC9",
+"-X c #6B8ECA",
+";X c #6586C6",
+":X c #738DC7",
+">X c #6D91CB",
+",X c #6C94C6",
+"<X c #7294CC",
+"1X c #7895C8",
+"2X c #6E92D1",
+"3X c #7294D3",
+"4X c #7698D5",
+"5X c #708ED1",
+"6X c #7799E3",
+"7X c #9B9399",
+"8X c #928890",
+"9X c #B89887",
+"0X c #A99191",
+"qX c #B9A598",
+"wX c #B1A394",
+"eX c #8C8EAA",
+"rX c #AB9AA6",
+"tX c #ABA4A9",
+"yX c #B7A9A8",
+"uX c #B7ABB4",
+"iX c #B6AFB7",
+"pX c #C69B86",
+"aX c #D4978B",
+"sX c #EF9C83",
+"dX c #CAA487",
+"fX c #D7A787",
+"gX c #C7A899",
+"hX c #D1B294",
+"jX c #E9A887",
+"kX c #F8A886",
+"lX c #F9B798",
+"zX c #F1B291",
+"xX c #C9B3AD",
+"cX c #F4B9A5",
+"vX c #D497B3",
+"bX c #D5C6B1",
+"nX c #FEC4A6",
+"mX c #EAD0B2",
+"MX c #EDD1A4",
+"NX c #8399C8",
+"BX c #B2B4CD",
+"VX c #C7BBC7",
+"CX c #D3CBCF",
+"ZX c #ECDAD1",
+"AX c #F6E6DA",
+"SX c #F7EACF",
+"DX c #D1D1E9",
+"FX c #E7DDE4",
+"GX c #E9E5E8",
+"HX c #F7EAE6",
+"JX c #FDF6E9",
+"KX c #FEFCFE",
+"LX c #FAF7F7",
+"PX c #F1EBF6",
+"IX c #DCE2E5",
+"UX c #BEC5DF",
+/* pixels */
+"L k f k P l y j T R I I U U L U R Q T L E E E R R R E U j } GX9XfXpXxXR.j ~ ~ = V Z.G > b R.DXPXLXHXHXHXHXCX~ / T.Y.T.T.W.T.W.E.Q.I.E.I.I.E.E.I.I.I.I.I.Y.I.Q.^.Q.E.E.E.E.Q.Q.~.U.U.U.U.U.U.Q.Q.U.U.U.U.U.U.Q.Q.Q.Q.U.U.U.Q.~.~.Q.U.Q.~.^._._._._._._._._.(.(.(.",
+"L k f L L k y h T R I L U U L U R R T L E E E R I R I U l  XuX' fXV v [ / P h z V Z.G a y l [ 7XCXHXJXHXHXCXb ! {.{.T.{._ _ {.T.W.W.T.T.W.I.I.U.U.I.I.E.W.I.I.Q.Q.E.E.E.Q.Q.~.~.~.U.U.U.U.Q.Q.Q.Q.U.U.U.U.U.Q.~.~.~.U.U.U.U.U.Q.~.Q.Q.Q.~.~._._._.'.`._._._._._.",
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+"j k L L P j 0 0 j k L P Y k k L U U L h y 0 r r f f f f k w i 5 >.w.V 9XcXe.V.V.%.q.s.i.p.n.b.w.:.,.L.nXnXnXnXnXnXlXq.jXlXlXcXnXnXlXlXjXq.sXzXzXlXlXK.F.G.F.V.n.V.p.w.C.sX8.q.f.9X8X+X*X*X-X2X-X>X-X-X-X-X-X-X-X>X-X-X-X-X-X*X>X-X-X-X-X-X=X=X=X=X=X-X-X-X-X-X-X",
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+"h k L L k s $ $ y j L Y Y L L Y Y U k h y 0 r r r f k r r d & 9 w.C.c.hXcXA.G.n.C.jXG.q.<.p.w.b.D.i.p.D.kXkXV.i.;.:.D.H.kXlXnXcXcXlXlXlXsXi.8.8.:.;.a.G.G.G.F.a.a.a.l.C.kXs.q.S.8X@X:X>X-X-X>X=X>X-X-X-X-X>X-X-X-X-X*X>X>X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X",
+"k k L L l t $ $ y k L Y L L L Y Y P k h y 0 r r r f f s r # 7 t.J.P.c.hXMXfXC.G.C.K.K.a.q.i.w.p.F.M.i.:.%.;.;.:.o.s.kXH.kXzXcXlXlXlXzXzXsXH.8.H.H.H.sXkXD.V.V.a.b.e.B.A.G.q.V.B.8X@X*X-X-X-X2X2X>X>X-X-X>X>X>X-X-X-X-X>X>X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X",
+"k L L L l t % $ y k L I P P L L L Y h h y y s q r r r s * & ' hXK.J.x.hXcXx.B.K.C.A.J.b.i.i.p.b.a.F.D.s.V.H.V.i.:.H.D.V.G.sXzXzXjXG.sXV.s.s.:.q.H.kXkXH.D.n.n.V.b.e.B.A.b.V.G.c.eX:X>X-X&X*X*X&X>X>X-X-X>X>X>X>X>X-X>X>X>X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X",
+"k k L k j t # ; y k L I L L L k g L f h y y s 0 q r s r * D wXgXJ.P.x.cXMXl.b.C.jXA.C.e.q.i.a.b.p.n.V.H.sXkXV.%.o.;.O.%.q.q.f.B.B.f.8.:.Z O.B O.s.G.H.D.H.V.V.C.B.e.B.0.C.K.s.pXeX&X=X-X,X,X<X*X>X>X-X-X>X>X>X>X>X>X>X>X>X-X-X>X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X",
+"f P k f ~ 0 $ ; j w I T L L f L Y P k y y y y % 0 w y i ` 0XgXhXP.P.x.cXhXl.x.A.b.b.%.w.p.i.a.n.p.n.V.D.G.V.:.o.V.q.Z Z C o.$.$.$.O.=.o.%.g.:.B :.s.g.s.V.n.V.C.V.B.e.q.q.w.A.9X+X-X=X>X*X*X*X,X*X>X>X>X>X-X>X>X<X>X>X-X-X*X*X*X-X-X-X-X-X-X-X-X-X-X-X-X-X2X3X3X",
+"d j f W s s $ % s k g L L k h g g k f y t t t t w y t | tXwXgXfXP.P.B.cXhXc.x.A.C.B.C.K.V.i.p.n.n.a.F.V.V.i.o.i.G.G.V.V.V.0.o.N C 8.g.V.g.D.i.Z B ;.d.s.s.s.V.C.B.C.kXG.K.C.fX0X+X=X=X-X*X*X*X:X*X>X>X>X>X-X>X>X>X>X>X-X*X*X*X*X-X-X-X-X-X-X-X-X-X-X-X-X-X-X>X>X",
+"p d W / d $ i i 0 k P U P k L k g f q q i i $ i $ d 8XiXrXgXgXfXP.P.B.cXhXZ.x.S.jXA.jXkXsXa.p.n.F.n.n.V.i.O.:.D.H.D.H.V.H.H.g.q.a.V.s.V.s.a.V.q.B o.:.,.i.s.V.C.V.C.jXzXC.fXgX8X+X*X-X>X,X*X:X,X*X>X>X>X-X-X>X>X>X-X-X*X*X*X*X*X*X*X-X-X-X-X-X-X-X-X-X-X-X-X-X>X",
+"( m  X[ d s $ $ l q j k k k h f g k j 0 i , & * x 7XiXtXyXqXgXdXP.P.B.cXhXZ.r.e.jXzXjXlXjXa.b.V.C.n.a.p.%.o.s.D.H.H.G.H.G.G.sXH.sXH.V.V.D.V.H.s.O.B O.;.a.V.s.b.b.A.zXjXK.dX0X8X+X*X-X>X,X:X:X,X*X>X>X>X-X-X-X>X-X-X-X*X*X*X*X*X-X*X-X-X-X-X-X-X-X-X-X-X-X-X-X-X",
+"qX0X8Xx r r * $ 0 s j j j f g k g j j r * & 6 D  XrXuXyXyXgXgXfXP.P.B.zXhXZ.9.=.A.jXjXzXr.e.V.b.F.b.n.<.o.:.s.D.G.sXsXkXsXkXlXzXzXsXsXD.H.G.G.V.s.O.o.:.i.s.V.C.B.B.zXjXB.c.7XeX+X*X-X>X>X*X*X-X-X>X>X>X-X-X-X>X-X-X*X*X*X*X-X-X-X*X*X*X-X-X-X-X-X-X-X-X-X-X-X-X",
+"mXqX} z p z $ * b ` b j l w k k h f s i = 6 A u.rXrXyXxXqXqXxXfXJ.P.B.zXhXZ.-.H >.B.A.0.N -.e.C.C.C.n.:.o.p.d.H.G.sXG.kXsXkXlXzXzXkXsXsXsXG.G.V.V.i.o.d.n.V.F.b.B.*.r.B.e.9XeX@X+X*X-X-X-X*X*X-X-X-X>X>X-X-X-X>X-X-X-X-X-X-X-X-X*X*X*X*X-X-X*X*X-X-X-X-X-X-X-X-X",
+"hXqXD z z e * ( R.[ d $ d s q q h h j r 6 c A u..XvXxXyXqXqXxXdXP.P.x.hXzXZ.7.H -.0.0.Z 4 H w.V.V.G.V.,.:.s.s.D.s.a.q.d.i.d.H.H.g.s.i.s.s.a.s.D.s.V.;.s.H.F.G.V.e.C F 6.fXwX+X+X+X+X-X-X-X*X-X-X-X-X>X-X-X*X-X>X>X>X-X-X-X-X>X>X*X*X*X*X*X*X*X*X-X-X-X-X-X-X-X-X",
+"bXqX( z = p & ` } p d d 0 s q k q h j $ 6 c A &.y.gXxXxXyXqXgXhXP.P.B.fXzXZ.9.H H =.x.9.V V e.C.C.F.kXs.i.d.s.d.%.o.o.o.o.o.:.:.o.o.o.o.o.o.o.:.q.d.D.F.kXF.n.B.B.C *.c.c.z.eX+X:X:X-X5X-X-X>X>X-X-X>X-X-X-X-X>X>X>X>X-X-X>X>X>X-X*X*X*X*X*X-X*X*X-X-X-X-X-X-X-X",
+"ZXxX.Xz z = . ` n x d s l q q h f j s r = A S S r.9XgXyXxXqXgXfXC.F.m.fXfXe.6.H F V D D V N 0.b.V.G.L.L.i.i.:.O.o.%.:.;.8.8.+.+.:.d.H.D.s.D.n.a.i.s.n.L.L.F.S.Z.e.H -.y.qXtX@X,X*X-X5X5X5X>X>X>X>X,X,X,X,X,X-X-X<X>X,X*X>X>X*X*X-X-X-X>X-X-X-X*X*X-X-X-X-X-X-X2X",
+"0XyXuX( = p . { ^ * d j j h y s r j s r 6 A S B 6.pXgXyXgXgXgXfXF.F.m.jXZ.0.>.;.Z N 3 9 v V =.b.b.n.G.L.V.p.a.p.s.s.g.H.sXsXH.sXsXH.G.sXH.D.s.n.V.p.F.L.F.n.A.B.9.H 9.c.yXtX+X+X-X2X5X5X5X-X>X>X>X>X,X,X>X>X-X-X>X,X,X*X*X*X*X>X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X>X",
+"` = { } z & < 7X{ * d r q j 0 s s r y r 6 A S B ..g.gXgXgXgXgXfXF.P.B.fXZ.>.;.,.<.Z N N N N F w.p.n.L.F.n.p.M.n.s.n.n.V.H.sXsXH.H.D.H.V.d.p.n.F.F.p.F.L.n.n.B.x.-.H 9.0XtXeX+X<X2X>X>X>X*X,X>X>X>X>X>X>X>X-X-X-X*X*X,X*X*X*X*X,X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X>X",
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+"y q j q $ r * * b x d r d q i i t i = 6 N B B B B ..h.aXgXgXhXZ.P.m.b.J.A.>.<.<.3.2.2.2.3.1.B *.q.n.p.p.,.n.D.s.p.s.s.a.V.G.G.G.D.V.V.a.p.p.p.n.C.V.s.D.i.a.y.H 9.t.} eX+X1X<X>X>X>X,X>X>X<X3X5X<X<X<X>X>X>X>X>X<X>X>X*X>X>X>X*X>X-X-X-X-X-X-X-X-X-X-X-X-X-X-X-X",
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+"y h j s r $ # # i t q y h q t , = c A S  . .B B  .X...+.aXpXpXx.k.N.m.n.n.,.p.4.4.2.2.2.4.3.Z B e.b.q.w.p.b.p.n.n.M.n.n.F.F.L.kXH.G.kXzXkXL.C.C.e.0.;.q.q.r.y.t. XeX:X1X3X2X1X,X,X,X,X>X2X2X3X3X<X<X<X<X<X<X<X<X>X>X<X<X>X>X>X>X<X>X>X>X>X-X-X-X-X-X-X-X-X-X-X-X",
+"y s s s r $ # # $ d l q q q i = c A S ..X.X.B B  .X...@.f.S.aXe.k.N.k.p.p.<.3.4.3.2.2.2.3.,.Z F A.b.;.;.w.p.,.p.n.n.n.p.n.n.F.V.V.D.G.A.F.F.n.e.0.$.%.o.%.x.y.D 7X[.+X5X3X3X-X>X,X,X,X,X>X>X<X3X<X<X<X<X<X<X<X<X<X<X<X>X>X>X>X<X<X>X>X>X-X-X-X-X-X-X-X-X-X-X-X-X",
+"r s s i r $ # # ; d j q r d = 6 A S S ..X.X. .X. .....B :.S.aXe.k.N.k.<.<.<.3.<.2.2.2.k.<.$.8 gXaXB.r.%.$.%.%.;.a.n.b.a.s.e.e.q.e.g.B.f.a.a.q.=.F C Z C r.Z.t.o ^ R.+X5X3X6X6X2X>X,X,X,X>X>X<X<X<X<X<X<X<X<X<X<X<X<X<X>X>X>X<X<X<X<X>X>X-X-X-X-X-X-X-X-X-X-X-X-X",
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+"s s d w r $ # . 7 } vXXXS ..X.X.X.X.X.X.X.B B B B B B X.....f.;.m.L.P.-.Z N 3 X o o # # # & CXZXF e.B.e.e.;.;.=.6.6.&.F Z V N 8 N N Z C =.6.*.*.0.f.e.B.hXZX} ; # # & & # # ; u w ! {.+XNX,X,X4X1X<X>X<X4X4X3X>X3X4X4X1X<X<X<X<X<X<X<X3X3X3X3X<X>X*X*X*X-X<X5X5X",
+"i r s r s $ . v 8XxXgXy.*...X.X. . .X.X.X. .B B B B X.X. .B y.r.0.>.Z 3 X X . . # # # # > @ CXZXF 0.A.e.0.q.;.=.;.=.O.O.C Z V V F C O.%.6.;.%.;.e.e.B.Z.SXAX| % # # # # # # # # ; t u h _ +XNX+X<X<X<X<X<X<X4X4X4X4X4X4X<X<X<X<X<X<X<X3X3X3X3X<X<X,X,X,X<X5X5X5X",
+"i r s s 0 # 2 } yXxX9Xy.g.O.....B ....X.X. .B B B B  .X...S F V 3 3 X X X @ & # # # # # & @ CXZXV -.B.C.a.<.;.;.;.*.O.&.F F F H &.O.$.=.8.=.%.0.q.e.B.hXAXAX` # # # # # # # # # ; % t l h u / [.1X1X1X1X1X1X<X<X1X>X>X4X4X<X1X4X<X<X3X3X3X3X3X>X<X<X,X,X<X<X5X5X",
+"d r s t % # 7 qXyXgX9Xc.aXr.@...B B  ... .B B B B B S B N 4 3 X X o o o . . # - # # # & = X xXHXD F S.V.w.w.;.<.;.=.$.&.F F F =.=.*.*.;.0.;.;.q.e.e.pXAXZXGXn # # # # # # . # # > , i t t y h h ^ T.+X+X+X1X1X<X4X1X4X4X4X>X>X>X<X<X3X3X3X3X3X2X<X<X,X,X<X<X5X5X",
+"d r 0 t ; , 7 qXxXgXqX9XgXaX8... . .....S B N 8 8 8 4 3 3 3 . . # # $ ; $ ; ; # # . . & = o tXHXhXV e.V.a.q.<.w.0.6.*.*.&.$.*.8.;.;.;.8.0.;.;.w.b.r.mXHXGXFX= > # # # # # # # # & # # i d i r t h w h {.eXNX1X1X,X,X1X1X1X<X>X4X<X<X3X3X3X3X3X3X<X>X,X,X<X<X5X5X",
+"r r y t ; 2 7 9XqXxXqXqXxXcXaXO.S S B N N 4 3 X @ X o o o & % % $ $ $ % % # - . . . o > & o  XFXHXt.&.f.a.,.w.<.q.0.=.&.*.*.=.8.;.:.;.0.q.;.;.e.0.pXAXZXPXVXo & # # # # # # # # & & < < , * , a i d y y l / T.+XNX1X1X1X,X,X1X4X<X<X3X3X3X2X2X2X>X>X>X-X5X<X5X5X",
+"r s y 0 # o 9 gXgXxXqXqXxXbXcX7.N 8 4 3 X @ . + - . . . . . # # . # > > > + + + . . . & # # | CXHXZXF 0.s.,.<.w.w.;.=.&.=.*.;.8.;.:.;.w.q.;.0.r.r.ZXAXGXGX} = o # # # # # # # # & & & < < < , < , i i i t y h h ^ _ ].+X1XNX1X,X1X<X<X<X3X3X2X>X2X>X-X-X5X5X5X5X",
+"s q q 0 , o 9 9XgXgXxXyXxXCXgXD 3 o o @ + + + . - . # - > # , . > . . . @ . . . . . . # # , | IXHXHXt.F e.a.,.<.w.;.=.&.=.%.;.8.;.;.;.q.;.=.=.-.hXAXHXGXGX` o & . # # . . . # # & < < * , < < > < < , , i d s y h l h h ! [ @XNX1X1X1X1X<X<X>X-X3X2X>X-X5X-X5X-X",
+"j q s 0 * o 9 9XgXxXxXyXtX X7 o o o . + . . . . & # # - - - - + + . . . o o . . > . # . # # ` IXFXLXZXF =.e.p.<.w.q.=.*.*.o.;.;.;.=.,.q.;.*.F c.ZXJXHXGXFX< & . . . # . . # # # # # * , i i , , < < < p i i i i s d l l y q l ! T.NX1X,X,X1X*X<X>X>X2X2X-X-X5X5X",
+"y y r r = o 5 9XqXbXwX7 2 2 . 2 & & & > # # & o & & # + + . . . . . . . o & & & # # , > - # n GXFXHXJXmX&.r.w.p.w.e.=.$.=.C $.$.$.=.%.w.;.C 9.ZXHXHXLXGX7X& $ # . . # . . . # # * , , , i i i i < < < < < p p p a i i d d s s j h ! T.NX1X,X,X*X<X>X2X2X-X-X5X5X",
+"0 s r r p & @ qXbXyX7 2 o & > & & = & & & # & # . . . . o o o o . . . # # & * * * * * , # & z FXPXHXLXAXZX6.a.s.e.e.6.*.=.C $.*.$.O.0.0.$.7.AXHXKXPXPXGXD . $ # . . . # # # # # * ; ; ; i i i i , < p p < < < < z < < p a p i r y h L _ @XeX1X,X<X<X3X>X-X-X-X-X",
+"i i $ r * & o wXxX` o < . # # # = = & & & & # - . . . . o o o o # # # # $ $ $ * * * * & . & 2 tXFXLXPXLXJXcX6.g.A.e.r.0.%.C *.&.$.&.e.0.H SXHXKXKXLXPXCX2 . # # & # # # . # # - # $ ; ; i t i i i i i i < < < < 7 < < < < < < p d s y h h ^ [.1X:X5X5X5X-X-X-X-X",
+"p = * * * & o 0XyXo 7 . $ 1 # > & & & & & > - - . . . . o o o o # # # $ $ $ $ $ $ # * * & & & ` FXGXKXKXLXJXpX6.B.B.b.e.=.$.r.&.&.y.r.H SXLXLXKXKXKXLX X& & & & > # # # # - - - # - ; i i i i i i i i i , , < < < < < < < < p a a x i t y h / NX:X5X5X5X-X-X-X-X",
+"v = * i # & = 0X' o . 1 , . & > - - & & & > & - . . . . . . . . # # # # # # # # # # & & , & < < xXFXPXKXKXLXJXc.r.B.A.B.e.0.y.0.r.y.7.AXLXLXKXKXKXKXPXn , > & > > > # # - - > > > , , i i i i i i i i i i , p < p , < , p i , , & & z i t y u [.:X<X5X5X5X-X-X-X",
+"{ 7 & , # # = 8Xv o & . - > > . + - & & & & & & # # # # . . . . . o o . . . . + + + + . - # p * t.GXPXKXKXKXJXJXx.e.B.B.x.e.y.e.e.c.AXLXLXKXKXKXKXKXtX# , > > > , ; # # - > > > > > > , , , i i i i i i i i i p i i , i i i t $ 7 o 7 > $ s u _ :X5X5X5X5X-X-X-X",
+"yXD & > # # o } o X > > - # o @ + + o o & & & & . # # # # # # . o o o o . . . . + . . . - # , p ` GXGXKXKXLXLXJXAXx.Z.fXMXnXcXcXcX9XAXKXKXKXKXKXKXLX| , , # < & , ; # - - > > > > > > > , , , i i i i i i i i i , i i i * t i i = 2 & > a % y K :X5X5X5X-X-X-X-X",
+"xX8X3 o o o 2 n o o > > > > & & > - # & o . & # . . . # # # # . # o & o . . . . . . # # # & , , m IXGXLXKXKXKXKXLXJXHXAXAXZXxXwXD 5 D FXKXKXKXKXLXCX, , 1 > . > > > > > > > , , , , , , , , , , i i i i i i , , , , , , , , , , # > , , > - $ q @X:X5X3X-X>X*X>X",
+"xXqXG X o o = z & & o > > & & # & # # . # # # # . . # # # # # . . # # - # # # # # # # # # # & & < tXPXPXLXKXKXKXKX8X` ` n v z < < < & m CXKXKXKXKX} , - > > > > > > > > , , , , , , , i , , , , i i i i i i , , i i i i , , * $ $ ; , , > & # 0 {.:X3X-X>X,X*X<X",
+"gXgXt.D X 3 7 & & & o & & & # # & > # # # . . . - - - # # # . . . . # # # # # # # # # # # # # & < } FXPXKXLXKXLX} < . a > & < > & > z > m IXKXLXGXb 1 , > < > > , , , , , , , , , , i i i i , , p i p p p p i i p p i , , * $ $ $ , , , & & - t ! 1X3X*X>X*X>X>X",
+"gXgXgXt.3 7 7 & & & o & & & # # # - # # # # # . > > > # . . . # . . # # # # # # . # # # # # # & > ` FXKXKXKXLX{ > & 1 1 < a < & 1 o . . a n GXKX8X< , 1 > < > > , , , , , , , , p p p p i , , , i i i p p p i i i i , , * * * $ $ , * * & & - t h +X*X<X*X*X3X-X",
+"hX9XhX9Xv 3 o o o o o & & & & & # # # # # # . . > > # # . . . . . . - - # # # # . # # # # # # & , b CXPXLXKX| # & , , . > , > 1 > 2 < < > & ` GXn , > , > > < > , , , , , , , , a a p p p , , , , i i i i i i i i i , , , , * $ , * * * & # # $ q {.+X<X*X>X3X-X",
+"hXpXgX0X' 7 X o o o o & & & & & # # # - > # # . > > # # # # . . . # - # # # . . # # # # # # # # & a R.PXKX| , , , # & & & > & > & & & & . z # ` 1 # 1 > > > 1 > < < , , , , , , p p p p p i , , , i i i i i i i i i i i , , , * * * * * & # # $ q ! 1X:X,X<X-X3X",
+"fXpXpXc.t.5 o o o o & # # # & & # . > > > > . . # . . . - # # . . . # # # # # # # # # # # # # & # a ` PX} , # # & . > > . > > # > 2 < & a . , 1 a > z , > , < > , , , , , , , , p p p p i , , , i i i i i i i p i i i , i , , * $ $ * * & # # $ t u [.+X,X<X-X3X",
+"hXpXpX9Xt.3 7 . o . # # # # # # # # - > > > . . . . . . - - # . . . # . # # # # . # # # # # > , , # z | & , > . # # > # . # . > & & < > # a , 1 , , , , & 1 > > , , , , , , , , p p p p i , , , , , , , , , , i , * , * , , , , $ $ * & & # # # % u _ +X,X-X3X3X",
+"fXpXpX9Xt.9 X o o . . # # # & > # . . . . # # - > # . # # # . . . . . . # # # # # # # # # # # > , , a # - 1 . > 1 > > > < . > m 7 z m , , , , < , , , , , , , > , , , , , , i p p i , i p p , , , , , * * , , i , , , , , , , * $ $ $ # & & & - ; u P +X1X5X3X2X",
+"fXpXpX9Xt.5 X o o . # # # # # # # - . . # # > > # . . # # # # . . . . . # # # # # # # # # # # & , , 1 > # # . > # # # 8XtXCXCXCXCXCXiX7Xa > , > , , , , , , , > , > > > , , , , , , , i p p < , , , , * * , , i i , , , , , * * $ $ $ # # # # # # % y [.:X<X3X3X",
+"fXdXpX9Xt.3 X o o # # - # # # . # - - - # > > > - # . . . # # # # # . . # # # # # # # # # # # # # ; , , & , 1 & 1 , | CXPXKXKXKXKXKXPXIX| 1 > # > > > , , , , > , , > > & > , , , , , p p p , , , , , * * , , , i , , , * * * $ , , ; - # # # # # % % [ +X1X3X3X",
+"fXdXpX9Xt.3 o o o # # # # # # . - - - - # > > > # . . . . # - # # # # # # # # # # & # # # # # # # ; ; , > , 1 # > 1 uXIXKXKXLXKXKXKXPXIX} 1 # , > > > , , , > > , , > > , , , , , , , p p i , , , , , * * * , , , , , * * * * $ , # # # # # # # # # % ^ :X1X2X3X",
+"fXdX9X9Xt.X o o o # . . # # # # . . . # # # # # - # . . . # # # # - - - # # # # # # # # # # # # , # # , , > < a < { CXLXKXKXKXKXKXKXPXGX( > , ; , , , , , , , < , , , , , , , , , i p p i , & # , , , * $ $ * , , , * * * * * $ # # # # # $ $ # o . $ P NX1X3X2X",
+"fXdXpX9X' X o o # # . . # # # & . . # # # # # # > > # . . # # # - - # - # # # # # # # # # # # # # ; , , a 1 > > n tXFXKXKXKXKXKXKXPXGXtX, , a # , , , , , , , < , , , , , , , , p p p i , * # # , , * * $ $ * , , * * * * * * # # # . # # $ * # o . ; u +X1X3X2X",
+"fXpXpX9XG X o o # # # # # # # # . . . . - # # # > > - . # . . . . . # # # # # # # # # # # # # # # , , # , , & m 7XCXLXKXKXKXKXKXKXPXCX` , , 1 , , , 1 1 , , , , , < , , , , i i p p i , * $ & & , , , , * $ * , , , * * * * $ # # # . . # $ * & o . # w [.1X<X3X",
+"fXpXpX9XD o o & # # # # # # # # . . # @ > @ - . > > - # # . . . . . # # # # # # # # # # # # # & , # , a a # m 7XCXGXKXKXLXKXKXKXPXCXuX< 1 a , i 1 1 1 1 , > > , 1 1 1 < 1 , p a p p < , $ # & * , , , , , ; , , , , , * & & # # # # . # # $ $ # & & # y {.1X<X3X",
+"Z.pXpX9XD @ & . > & # . . # # # . . > . 1 @ . @ > . . > . . . . . 2 & . # # > . > > & # # # # & , # a , a , 7XCXGXKXLXKXKXKXKXLXCXVX( z a 1 , i a 1 , , > > > > 1 - 1 , , 1 , , , & = o , # * = < & , $ , , ; , , - ; & & & # # $ # & # # # $ $ ; # $ t [ NX4X3X",
+"aXpXpX9X9 X & # & & & o . . # # > . . 1 . . 1 . @ @ o 2 . o > > . . . & , < . 1 & & & # # # # # # , , , i M R.CXFXKXKXKXKXKXPXIXrX} z < < a , 1 1 1 , < , > > > < > < a 1 , a < < = = = . & = 6 7 & a # - % ; , , # # # & & & - # # # & # # $ $ $ $ $ 0 _ NX4X3X",
+"fXZ.9X9X5 X & # # # & o . . # # . o 8X8X8X} } | ` ` n m 2 > o . 2 & > & . < . # # & # # # # # # # 1 # , , a ` iXIXPXLXKXKXLXCX7X} n , , , a , , < < < < < > > , , a < < , , < = 6 6 6 c 6 c 6 6 6 6 , ; t : & & = * & & & & . # # # # & # # $ $ $ ; * 0 ^ NX4X4X",
+"fXZ.9X9XX o & # # . o o # . # # 7 . 8XxXKXKXLX7X7X7XrXuXiXxXtXrX8X X{ ` & . 1 > # & # # # # # # # , # , , , a 7XVXHXKXLXLXFXrX{ ` i i a i a i , i < p < < , , , * x p p p < 1 ` D ) ) ) ) ) ) ) ) u.2 + + ; o = & & o > * # # - # # # o # # $ $ $ ; * 0 ! NX3X4X",
+"dXZ.9Xz.X o & # . # o o & # # # . z 8XCXLXKXCXt.8X7X7XrXtXiXxXxXiXiXtXtX{ > . . & & > # # # # # & # , a i i , | iXFXLXHXZX7X} } n t i i a $ i p i p p p p , , , d r * < z & o 8X5.5.5.5.5.5.5.5.5.vX7 + ; , = = 2 > @ > $ % . . # # # & # # $ $ # ; # $ l +X<X3X",
+"pXpXpXt.X o o # # . o o . # # # . v tXxXIXFXCXrX8XtXuXiXiXxXiXxXiXuXtXuX7X` > & & & & & # # - > , # , , i a , m uXVXZXFXtX X8X8Xi t i i a * p p p p p i i 1 , , ; i x = < < 6 0X5.5.5.5.5.5.5.5.5.vXv @ = = 8 3 3 3 X 2 , % # . # # # & & & ; ; ; - , $ h [.1X4X",
+"pXpXpX' o o . # & & o o . . # # < D yXCXCXVXFX7X8XuXVXCXCXCXVXCXCXVXxXiXVX7X` . & & & & # & > > , , , , , i a & 8XCXFXxX8XrXVX` , i p , p p p p i a i i , 1 , , 1 > 6 7 { rXu.u.u.) .Xu.u.u.XXu..X7X' t.u.7.O.@.O.7.9.] ( r o o # # & & > > ; ; ; , < , y {.1X4X",
+"pXpX9XD o o . & > o o o . . # # & `  XuXFXFX7Xt.8XrXrXrXtXuXuXiXiXuXyXtXuXtX7Xz & & & & # # > > # , # a i * a < ` VXxXrX8X8X7X= < * < * * p , , i a i 1 , , , > @ 5 A ' yXPXvXu..X} uX X.Xu.vX{ BX} ] cXXXh.+.j.+.h.pX9X' = o = & - & > > > ; ; - # , $ y [ 1X4X",
+"dX9X9X9 o > # # . . o o . . # # & n { } } }  X7X7X7X7XrXtXtXuXuXtXtXtXtXrXrX7Xz # & # & # # # # > , ; ; , , , < & uXyX} ` 8Xv & < * * * * , , , i , , , < < < 7 4 V O.u.vXPXvXu..X{ VX X7Xt.vX} BXR.9.aXg.h.j.#.#.h.g.pX' z & > & > > > > $ ; ; ; > , $ y / 1X4X",
+"dXpX9X9 @ > . # # . o o o o & > . & & # . . < z m n n ` ` { } } 8X7X8X7X7X7X7Xz # # # # # # # # > > , , , * , * < ' 8X` D { & = , , , , , , , , ; ; , < = 6 6 8 Z *.8.8.5.h.5.u. XrX8X X X7Xu.t.8X} ' 8.5.j.#.#.#.#.+.r.A & . > # > > > , ; ; ; ; > > , y ^ NXNX",
+"pXpXz.5 @ > . - . . o o o . # # # # . # & & # # & & & # . . # & & & 2 z m n n & # . # # # # # > > & # # $ * * & = 7 ` D ( c & & # - - - , , 1 1 1 1 , 2 6 c A F 0.G.G.D.+.j.5.XXrXVX` 7XiXGX( { uXrXu.5.j.#.#.#.#.#.+.h.c * # > # & > > , , ; ; ; - > i t h NX4X",
+"pXpXt.X @ > . > . . . o . . # # . . . # # - # # # # # # # # # & & . o & . . # & # # . # # # # & > & # # $ $ # & & & 7 ( D . < & # - - - - ; 1 1 1 1 , = 6 c D F e.K.A.B.+.+.5.u.rXVX| 7XrXCX' t.uX.Xu.5.j.+.+.+.+.+.+.y.v ; . . # , > > , ; ; ; ; > > i t u NX4X",
+"pX9X] X o & . # # . o o o . # # - > > . . . . # . . # # # # # # o o 2 . # < & . # # # # # # # # & & # # # # # # & & > m < > # , - - - - - - , , 1 , > 2 7 c A A F H F D A A A A ( ( a M b ` c v n m c 4 N N 4 4 N 4 N N O . - , ; , > & & $ ; ; ; , , , t u NX1X",
+"pX9X' X o & . . . . o o o o . # # + - > > > > # # > > > > > > & > & < . . & . # # # # # # # # # & & & # # # # - > & > & . < # - - - - - > , < 1 , ; - > < 7 6 6 6 7 o 7 6 6 7 z z < i a z < , 1 < < 6 c o 2 @ @ 7 3 3 X = . - - ; , * & * $ ; ; ; , , * t u @X1X",
+"pX9XD X o . . . . . . . . . . . > . . . . . # & # & # # . . . . . . > & , . . > # # # # # # # # & # # # # - - , & , > > # - , # - - , * < < p < , ; ; - , > < < p < z z a < = 7 z z a , p x d - , < < z < , , p = < z = = o . # , * * * * $ ; ; ; - , # t u {.NX",
+"pXc.D X o . # # . . o o o o # & # . @ > - > & & & & & & & & & & > . > . > # , # # # # . # # # # & . # # # ; ; , , . # > . - , , , , , < z 6 = * # ; : : : , 1 1 i i p p ; a 7 7 < < < z z = i i , 1 < & , p i r r r * * o & & > $ * , , * , ; ; ; # , # i q _ NX"
+};

Tests/oss-fuzz/python.supp

@@ -14,3 +14,23 @@
    fun:_TIFFReadEncodedTileAndAllocBuffer
    ...
 }
+
+{
+   <python_alloc_possible_leak>
+   Memcheck:Leak
+   match-leak-kinds: all
+   fun:malloc
+   fun:_PyMem_RawMalloc
+   fun:PyObject_Malloc
+   ...
+}
+
+{
+   <python_realloc_possible_leak>
+   Memcheck:Leak
+   match-leak-kinds: all
+   fun:malloc
+   fun:_PyMem_RawRealloc
+   fun:PyMem_Realloc
+   ...
+}

Tests/oss-fuzz/test_fuzzers.py

@@ -7,7 +7,7 @@ import fuzzers
 import packaging
 import pytest
 
-from PIL import Image, UnidentifiedImageError, features
+from PIL import Image, features
 from Tests.helper import skip_unless_feature
 
 if sys.platform.startswith("win32"):
@@ -32,21 +32,17 @@ def test_fuzz_images(path: str) -> None:
             fuzzers.fuzz_image(f.read())
             assert True
     except (
+        # Known exceptions from Pillow
         OSError,
         SyntaxError,
         MemoryError,
         ValueError,
         NotImplementedError,
         OverflowError,
-    ):
+        # Known Image.* exceptions
-        # Known exceptions that are through from Pillow
-        assert True
-    except (
         Image.DecompressionBombError,
         Image.DecompressionBombWarning,
-        UnidentifiedImageError,
     ):
-        # Known Image.* exceptions
         assert True
     finally:
         fuzzers.disable_decompressionbomb_error()

Tests/test_arrow.py

@@ -0,0 +1,164 @@
+from __future__ import annotations
+
+import pytest
+
+from PIL import Image
+
+from .helper import hopper
+
+
+@pytest.mark.parametrize(
+    "mode, dest_modes",
+    (
+        ("L", ["I", "F", "LA", "RGB", "RGBA", "RGBX", "CMYK", "YCbCr", "HSV"]),
+        ("I", ["L", "F"]),  # Technically I;32 can work for any 4x8bit storage.
+        ("F", ["I", "L", "LA", "RGB", "RGBA", "RGBX", "CMYK", "YCbCr", "HSV"]),
+        ("LA", ["L", "F"]),
+        ("RGB", ["L", "F"]),
+        ("RGBA", ["L", "F"]),
+        ("RGBX", ["L", "F"]),
+        ("CMYK", ["L", "F"]),
+        ("YCbCr", ["L", "F"]),
+        ("HSV", ["L", "F"]),
+    ),
+)
+def test_invalid_array_type(mode: str, dest_modes: list[str]) -> None:
+    img = hopper(mode)
+    for dest_mode in dest_modes:
+        with pytest.raises(ValueError):
+            Image.fromarrow(img, dest_mode, img.size)
+
+
+def test_invalid_array_size() -> None:
+    img = hopper("RGB")
+
+    assert img.size != (10, 10)
+    with pytest.raises(ValueError):
+        Image.fromarrow(img, "RGB", (10, 10))
+
+
+def test_release_schema() -> None:
+    # these should not error out, valgrind should be clean
+    img = hopper("L")
+    schema = img.__arrow_c_schema__()
+    del schema
+
+
+def test_release_array() -> None:
+    # these should not error out, valgrind should be clean
+    img = hopper("L")
+    array, schema = img.__arrow_c_array__()
+    del array
+    del schema
+
+
+def test_readonly() -> None:
+    img = hopper("L")
+    reloaded = Image.fromarrow(img, img.mode, img.size)
+    assert reloaded.readonly == 1
+    reloaded._readonly = 0
+    assert reloaded.readonly == 1
+
+
+def test_multiblock_l_image() -> None:
+    block_size = Image.core.get_block_size()
+
+    # check a 2 block image in single channel mode
+    size = (4096, 2 * block_size // 4096)
+    img = Image.new("L", size, 128)
+
+    with pytest.raises(ValueError):
+        (schema, arr) = img.__arrow_c_array__()
+
+
+def test_multiblock_rgba_image() -> None:
+    block_size = Image.core.get_block_size()
+
+    # check a 2 block image in 4 channel mode
+    size = (4096, (block_size // 4096) // 2)
+    img = Image.new("RGBA", size, (128, 127, 126, 125))
+
+    with pytest.raises(ValueError):
+        (schema, arr) = img.__arrow_c_array__()
+
+
+def test_multiblock_l_schema() -> None:
+    block_size = Image.core.get_block_size()
+
+    # check a 2 block image in single channel mode
+    size = (4096, 2 * block_size // 4096)
+    img = Image.new("L", size, 128)
+
+    with pytest.raises(ValueError):
+        img.__arrow_c_schema__()
+
+
+def test_multiblock_rgba_schema() -> None:
+    block_size = Image.core.get_block_size()
+
+    # check a 2 block image in 4 channel mode
+    size = (4096, (block_size // 4096) // 2)
+    img = Image.new("RGBA", size, (128, 127, 126, 125))
+
+    with pytest.raises(ValueError):
+        img.__arrow_c_schema__()
+
+
+def test_singleblock_l_image() -> None:
+    Image.core.set_use_block_allocator(1)
+
+    block_size = Image.core.get_block_size()
+
+    # check a 2 block image in 4 channel mode
+    size = (4096, 2 * (block_size // 4096))
+    img = Image.new("L", size, 128)
+    assert img.im.isblock()
+
+    (schema, arr) = img.__arrow_c_array__()
+    assert schema
+    assert arr
+
+    Image.core.set_use_block_allocator(0)
+
+
+def test_singleblock_rgba_image() -> None:
+    Image.core.set_use_block_allocator(1)
+    block_size = Image.core.get_block_size()
+
+    # check a 2 block image in 4 channel mode
+    size = (4096, (block_size // 4096) // 2)
+    img = Image.new("RGBA", size, (128, 127, 126, 125))
+    assert img.im.isblock()
+
+    (schema, arr) = img.__arrow_c_array__()
+    assert schema
+    assert arr
+    Image.core.set_use_block_allocator(0)
+
+
+def test_singleblock_l_schema() -> None:
+    Image.core.set_use_block_allocator(1)
+    block_size = Image.core.get_block_size()
+
+    # check a 2 block image in single channel mode
+    size = (4096, 2 * block_size // 4096)
+    img = Image.new("L", size, 128)
+    assert img.im.isblock()
+
+    schema = img.__arrow_c_schema__()
+    assert schema
+    Image.core.set_use_block_allocator(0)
+
+
+def test_singleblock_rgba_schema() -> None:
+    Image.core.set_use_block_allocator(1)
+    block_size = Image.core.get_block_size()
+
+    # check a 2 block image in 4 channel mode
+    size = (4096, (block_size // 4096) // 2)
+    img = Image.new("RGBA", size, (128, 127, 126, 125))
+    assert img.im.isblock()
+
+    schema = img.__arrow_c_schema__()
+    assert schema
+    Image.core.set_use_block_allocator(0)

Tests/test_bmp_reference.py

@@ -22,6 +22,8 @@ def test_bad() -> None:
     for f in get_files("b"):
         # Assert that there is no unclosed file warning
         with warnings.catch_warnings():
+            warnings.simplefilter("error")
+
             try:
                 with Image.open(f) as im:
                     im.load()

Tests/test_color_lut.py

@@ -19,7 +19,7 @@ except ImportError:
 class TestColorLut3DCoreAPI:
     def generate_identity_table(
         self, channels: int, size: int | tuple[int, int, int]
-    ) -> tuple[int, int, int, int, list[float]]:
+    ) -> tuple[int, tuple[int, int, int], list[float]]:
         if isinstance(size, tuple):
             size_1d, size_2d, size_3d = size
         else:
@@ -39,9 +39,7 @@ class TestColorLut3DCoreAPI:
         ]
         return (
             channels,
-            size_1d,
+            (size_1d, size_2d, size_3d),
-            size_2d,
-            size_3d,
             [item for sublist in table for item in sublist],
         )
 
@@ -89,21 +87,21 @@ class TestColorLut3DCoreAPI:
 
         with pytest.raises(ValueError, match=r"size1D \* size2D \* size3D"):
             im.im.color_lut_3d(
-                "RGB", Image.Resampling.BILINEAR, 3, 2, 2, 2, [0, 0, 0] * 7
+                "RGB", Image.Resampling.BILINEAR, 3, (2, 2, 2), [0, 0, 0] * 7
             )
 
         with pytest.raises(ValueError, match=r"size1D \* size2D \* size3D"):
             im.im.color_lut_3d(
-                "RGB", Image.Resampling.BILINEAR, 3, 2, 2, 2, [0, 0, 0] * 9
+                "RGB", Image.Resampling.BILINEAR, 3, (2, 2, 2), [0, 0, 0] * 9
             )
 
         with pytest.raises(TypeError):
             im.im.color_lut_3d(
-                "RGB", Image.Resampling.BILINEAR, 3, 2, 2, 2, [0, 0, "0"] * 8
+                "RGB", Image.Resampling.BILINEAR, 3, (2, 2, 2), [0, 0, "0"] * 8
             )
 
         with pytest.raises(TypeError):
-            im.im.color_lut_3d("RGB", Image.Resampling.BILINEAR, 3, 2, 2, 2, 16)
+            im.im.color_lut_3d("RGB", Image.Resampling.BILINEAR, 3, (2, 2, 2), 16)
 
     @pytest.mark.parametrize(
         "lut_mode, table_channels, table_size",
@@ -264,7 +262,7 @@ class TestColorLut3DCoreAPI:
         assert_image_equal(
             Image.merge('RGB', im.split()[::-1]),
             im._new(im.im.color_lut_3d('RGB', Image.Resampling.BILINEAR,
-                    3, 2, 2, 2, [
+                    3, (2, 2, 2), [
                         0, 0, 0,  0, 0, 1,
                         0, 1, 0,  0, 1, 1,
 
@@ -286,7 +284,7 @@ class TestColorLut3DCoreAPI:
 
         # fmt: off
         transformed = im._new(im.im.color_lut_3d('RGB', Image.Resampling.BILINEAR,
-                              3, 2, 2, 2,
+                              3, (2, 2, 2),
                               [
                                   -1, -1, -1,   2, -1, -1,
                                   -1,  2, -1,   2,  2, -1,
@@ -307,7 +305,7 @@ class TestColorLut3DCoreAPI:
 
         # fmt: off
         transformed = im._new(im.im.color_lut_3d('RGB', Image.Resampling.BILINEAR,
-                              3, 2, 2, 2,
+                              3, (2, 2, 2),
                               [
                                   -3, -3, -3,   5, -3, -3,
                                   -3,  5, -3,   5,  5, -3,
@@ -388,10 +386,12 @@ class TestColorLut3DFilter:
 
         table = numpy.ones((7 * 6 * 5, 3), dtype=numpy.float16)
         lut = ImageFilter.Color3DLUT((5, 6, 7), table)
+        assert isinstance(lut.table, numpy.ndarray)
         assert lut.table.shape == (table.size,)
 
         table = numpy.ones((7 * 6 * 5 * 3), dtype=numpy.float16)
         lut = ImageFilter.Color3DLUT((5, 6, 7), table)
+        assert isinstance(lut.table, numpy.ndarray)
         assert lut.table.shape == (table.size,)
 
         # Check application

Tests/test_core_resources.py

@@ -188,5 +188,5 @@ class TestEnvVars:
         ),
     )
     def test_warnings(self, var: dict[str, str]) -> None:
-        with pytest.warns(UserWarning):
+        with pytest.warns(UserWarning, match=list(var)[0]):
             Image._apply_env_variables(var)

Tests/test_decompression_bomb.py

@@ -12,19 +12,16 @@ ORIGINAL_LIMIT = Image.MAX_IMAGE_PIXELS
 
 
 class TestDecompressionBomb:
-    def teardown_method(self) -> None:
-        Image.MAX_IMAGE_PIXELS = ORIGINAL_LIMIT
-
     def test_no_warning_small_file(self) -> None:
         # Implicit assert: no warning.
         # A warning would cause a failure.
         with Image.open(TEST_FILE):
             pass
 
-    def test_no_warning_no_limit(self) -> None:
+    def test_no_warning_no_limit(self, monkeypatch: pytest.MonkeyPatch) -> None:
         # Arrange
         # Turn limit off
-        Image.MAX_IMAGE_PIXELS = None
+        monkeypatch.setattr(Image, "MAX_IMAGE_PIXELS", None)
         assert Image.MAX_IMAGE_PIXELS is None
 
         # Act / Assert
@@ -33,18 +30,18 @@ class TestDecompressionBomb:
         with Image.open(TEST_FILE):
             pass
 
-    def test_warning(self) -> None:
+    def test_warning(self, monkeypatch: pytest.MonkeyPatch) -> None:
         # Set limit to trigger warning on the test file
-        Image.MAX_IMAGE_PIXELS = 128 * 128 - 1
+        monkeypatch.setattr(Image, "MAX_IMAGE_PIXELS", 128 * 128 - 1)
         assert Image.MAX_IMAGE_PIXELS == 128 * 128 - 1
 
         with pytest.warns(Image.DecompressionBombWarning):
             with Image.open(TEST_FILE):
                 pass
 
-    def test_exception(self) -> None:
+    def test_exception(self, monkeypatch: pytest.MonkeyPatch) -> None:
         # Set limit to trigger exception on the test file
-        Image.MAX_IMAGE_PIXELS = 64 * 128 - 1
+        monkeypatch.setattr(Image, "MAX_IMAGE_PIXELS", 64 * 128 - 1)
         assert Image.MAX_IMAGE_PIXELS == 64 * 128 - 1
 
         with pytest.raises(Image.DecompressionBombError):
@@ -66,9 +63,9 @@ class TestDecompressionBomb:
             with pytest.raises(Image.DecompressionBombError):
                 im.seek(1)
 
-    def test_exception_gif_zero_width(self) -> None:
+    def test_exception_gif_zero_width(self, monkeypatch: pytest.MonkeyPatch) -> None:
         # Set limit to trigger exception on the test file
-        Image.MAX_IMAGE_PIXELS = 4 * 64 * 128
+        monkeypatch.setattr(Image, "MAX_IMAGE_PIXELS", 4 * 64 * 128)
         assert Image.MAX_IMAGE_PIXELS == 4 * 64 * 128
 
         with pytest.raises(Image.DecompressionBombError):

Tests/test_deprecate.py

@@ -47,7 +47,6 @@ def test_unknown_version() -> None:
     ],
 )
 def test_old_version(deprecated: str, plural: bool, expected: str) -> None:
-    expected = r""
     with pytest.raises(RuntimeError, match=expected):
         _deprecate.deprecate(deprecated, 1, plural=plural)
 

Tests/test_features.py

@@ -19,7 +19,7 @@ def test_check() -> None:
         assert features.check_codec(codec) == features.check(codec)
     for feature in features.features:
         if "webp" in feature:
-            with pytest.warns(DeprecationWarning):
+            with pytest.warns(DeprecationWarning, match="webp"):
                 assert features.check_feature(feature) == features.check(feature)
         else:
             assert features.check_feature(feature) == features.check(feature)
@@ -36,10 +36,11 @@ def test_version() -> None:
         else:
             assert function(name) == version
             if name != "PIL":
-                if name == "zlib" and version is not None:
+                if version is not None:
-                    version = re.sub(".zlib-ng$", "", version)
+                    if name == "zlib" and features.check_feature("zlib_ng"):
-                elif name == "libtiff" and version is not None:
+                        version = re.sub(".zlib-ng$", "", version)
-                    version = re.sub("t$", "", version)
+                    elif name == "libtiff":
+                        version = re.sub("t$", "", version)
                 assert version is None or re.search(r"\d+(\.\d+)*$", version)
 
     for module in features.modules:
@@ -48,24 +49,24 @@ def test_version() -> None:
         test(codec, features.version_codec)
     for feature in features.features:
         if "webp" in feature:
-            with pytest.warns(DeprecationWarning):
+            with pytest.warns(DeprecationWarning, match="webp"):
                 test(feature, features.version_feature)
         else:
             test(feature, features.version_feature)
 
 
 def test_webp_transparency() -> None:
-    with pytest.warns(DeprecationWarning):
+    with pytest.warns(DeprecationWarning, match="transp_webp"):
         assert (features.check("transp_webp") or False) == features.check_module("webp")
 
 
 def test_webp_mux() -> None:
-    with pytest.warns(DeprecationWarning):
+    with pytest.warns(DeprecationWarning, match="webp_mux"):
         assert (features.check("webp_mux") or False) == features.check_module("webp")
 
 
 def test_webp_anim() -> None:
-    with pytest.warns(DeprecationWarning):
+    with pytest.warns(DeprecationWarning, match="webp_anim"):
         assert (features.check("webp_anim") or False) == features.check_module("webp")
 
 
@@ -94,10 +95,9 @@ def test_check_codecs(feature: str) -> None:
 
 
 def test_check_warns_on_nonexistent() -> None:
-    with pytest.warns(UserWarning) as cm:
+    with pytest.warns(UserWarning, match="Unknown feature 'typo'."):
         has_feature = features.check("typo")
     assert has_feature is False
-    assert str(cm[-1].message) == "Unknown feature 'typo'."
 
 
 def test_supported_modules() -> None:

Tests/test_file_apng.py

@@ -12,6 +12,7 @@ from PIL import Image, ImageSequence, PngImagePlugin
 # (referenced from https://wiki.mozilla.org/APNG_Specification)
 def test_apng_basic() -> None:
     with Image.open("Tests/images/apng/single_frame.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert not im.is_animated
         assert im.n_frames == 1
         assert im.get_format_mimetype() == "image/apng"
@@ -20,6 +21,7 @@ def test_apng_basic() -> None:
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 
     with Image.open("Tests/images/apng/single_frame_default.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert im.is_animated
         assert im.n_frames == 2
         assert im.get_format_mimetype() == "image/apng"
@@ -34,8 +36,11 @@ def test_apng_basic() -> None:
         with pytest.raises(EOFError):
             im.seek(2)
 
-        # test rewind support
         im.seek(0)
+        with pytest.raises(ValueError, match="cannot seek to frame 2"):
+            im._seek(2)
+
+        # test rewind support
         assert im.getpixel((0, 0)) == (255, 0, 0, 255)
         assert im.getpixel((64, 32)) == (255, 0, 0, 255)
         im.seek(1)
@@ -49,6 +54,7 @@ def test_apng_basic() -> None:
 )
 def test_apng_fdat(filename: str) -> None:
     with Image.open(filename) as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 255)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
@@ -56,31 +62,37 @@ def test_apng_fdat(filename: str) -> None:
 
 def test_apng_dispose() -> None:
     with Image.open("Tests/images/apng/dispose_op_none.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 255)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 
     with Image.open("Tests/images/apng/dispose_op_background.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 0, 0, 0)
         assert im.getpixel((64, 32)) == (0, 0, 0, 0)
 
     with Image.open("Tests/images/apng/dispose_op_background_final.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 255)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 
     with Image.open("Tests/images/apng/dispose_op_previous.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 255)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 
     with Image.open("Tests/images/apng/dispose_op_previous_final.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 255)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 
     with Image.open("Tests/images/apng/dispose_op_previous_first.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 0, 0, 0)
         assert im.getpixel((64, 32)) == (0, 0, 0, 0)
@@ -88,21 +100,25 @@ def test_apng_dispose() -> None:
 
 def test_apng_dispose_region() -> None:
     with Image.open("Tests/images/apng/dispose_op_none_region.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 255)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 
     with Image.open("Tests/images/apng/dispose_op_background_before_region.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 0, 0, 0)
         assert im.getpixel((64, 32)) == (0, 0, 0, 0)
 
     with Image.open("Tests/images/apng/dispose_op_background_region.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 0, 255, 255)
         assert im.getpixel((64, 32)) == (0, 0, 0, 0)
 
     with Image.open("Tests/images/apng/dispose_op_previous_region.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 255)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
@@ -129,6 +145,7 @@ def test_apng_dispose_op_previous_frame() -> None:
     #     ],
     # )
     with Image.open("Tests/images/apng/dispose_op_previous_frame.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (255, 0, 0, 255)
 
@@ -142,26 +159,31 @@ def test_apng_dispose_op_background_p_mode() -> None:
 
 def test_apng_blend() -> None:
     with Image.open("Tests/images/apng/blend_op_source_solid.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 255)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 
     with Image.open("Tests/images/apng/blend_op_source_transparent.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 0, 0, 0)
         assert im.getpixel((64, 32)) == (0, 0, 0, 0)
 
     with Image.open("Tests/images/apng/blend_op_source_near_transparent.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 2)
         assert im.getpixel((64, 32)) == (0, 255, 0, 2)
 
     with Image.open("Tests/images/apng/blend_op_over.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 255)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 
     with Image.open("Tests/images/apng/blend_op_over_near_transparent.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 97)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
@@ -175,6 +197,7 @@ def test_apng_blend_transparency() -> None:
 
 def test_apng_chunk_order() -> None:
     with Image.open("Tests/images/apng/fctl_actl.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 255, 0, 255)
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
@@ -230,24 +253,28 @@ def test_apng_num_plays() -> None:
 
 def test_apng_mode() -> None:
     with Image.open("Tests/images/apng/mode_16bit.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert im.mode == "RGBA"
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (0, 0, 128, 191)
         assert im.getpixel((64, 32)) == (0, 0, 128, 191)
 
     with Image.open("Tests/images/apng/mode_grayscale.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert im.mode == "L"
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == 128
         assert im.getpixel((64, 32)) == 255
 
     with Image.open("Tests/images/apng/mode_grayscale_alpha.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert im.mode == "LA"
         im.seek(im.n_frames - 1)
         assert im.getpixel((0, 0)) == (128, 191)
         assert im.getpixel((64, 32)) == (128, 191)
 
     with Image.open("Tests/images/apng/mode_palette.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert im.mode == "P"
         im.seek(im.n_frames - 1)
         im = im.convert("RGB")
@@ -255,6 +282,7 @@ def test_apng_mode() -> None:
         assert im.getpixel((64, 32)) == (0, 255, 0)
 
     with Image.open("Tests/images/apng/mode_palette_alpha.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert im.mode == "P"
         im.seek(im.n_frames - 1)
         im = im.convert("RGBA")
@@ -262,6 +290,7 @@ def test_apng_mode() -> None:
         assert im.getpixel((64, 32)) == (0, 255, 0, 255)
 
     with Image.open("Tests/images/apng/mode_palette_1bit_alpha.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert im.mode == "P"
         im.seek(im.n_frames - 1)
         im = im.convert("RGBA")
@@ -271,59 +300,68 @@ def test_apng_mode() -> None:
 
 def test_apng_chunk_errors() -> None:
     with Image.open("Tests/images/apng/chunk_no_actl.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert not im.is_animated
 
-    with pytest.warns(UserWarning):
+    with pytest.warns(UserWarning, match="Invalid APNG"):
-        with Image.open("Tests/images/apng/chunk_multi_actl.png") as im:
+        im = Image.open("Tests/images/apng/chunk_multi_actl.png")
-            im.load()
+    assert isinstance(im, PngImagePlugin.PngImageFile)
-        assert not im.is_animated
+    assert not im.is_animated
+    im.close()
 
     with Image.open("Tests/images/apng/chunk_actl_after_idat.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert not im.is_animated
 
     with Image.open("Tests/images/apng/chunk_no_fctl.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         with pytest.raises(SyntaxError):
             im.seek(im.n_frames - 1)
 
     with Image.open("Tests/images/apng/chunk_repeat_fctl.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         with pytest.raises(SyntaxError):
             im.seek(im.n_frames - 1)
 
     with Image.open("Tests/images/apng/chunk_no_fdat.png") as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         with pytest.raises(SyntaxError):
             im.seek(im.n_frames - 1)
 
 
 def test_apng_syntax_errors() -> None:
-    with pytest.warns(UserWarning):
+    with pytest.warns(UserWarning, match="Invalid APNG"):
-        with Image.open("Tests/images/apng/syntax_num_frames_zero.png") as im:
+        im = Image.open("Tests/images/apng/syntax_num_frames_zero.png")
-            assert not im.is_animated
+    assert isinstance(im, PngImagePlugin.PngImageFile)
-            with pytest.raises(OSError):
+    assert not im.is_animated
-                im.load()
+    with pytest.raises(OSError):
+        im.load()
+    im.close()
 
-    with pytest.warns(UserWarning):
+    with pytest.warns(UserWarning, match="Invalid APNG"):
-        with Image.open("Tests/images/apng/syntax_num_frames_zero_default.png") as im:
+        im = Image.open("Tests/images/apng/syntax_num_frames_zero_default.png")
-            assert not im.is_animated
+    assert isinstance(im, PngImagePlugin.PngImageFile)
-            im.load()
+    assert not im.is_animated
+    im.load()
+    im.close()
 
     # we can handle this case gracefully
-    exception = None
     with Image.open("Tests/images/apng/syntax_num_frames_low.png") as im:
-        try:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
-            im.seek(im.n_frames - 1)
+        im.seek(im.n_frames - 1)
-        except Exception as e:
-            exception = e
-        assert exception is None
 
     with pytest.raises(OSError):
         with Image.open("Tests/images/apng/syntax_num_frames_high.png") as im:
+            assert isinstance(im, PngImagePlugin.PngImageFile)
             im.seek(im.n_frames - 1)
             im.load()
 
-    with pytest.warns(UserWarning):
+    with pytest.warns(UserWarning, match="Invalid APNG"):
-        with Image.open("Tests/images/apng/syntax_num_frames_invalid.png") as im:
+        im = Image.open("Tests/images/apng/syntax_num_frames_invalid.png")
-            assert not im.is_animated
+    assert isinstance(im, PngImagePlugin.PngImageFile)
-            im.load()
+    assert not im.is_animated
+    im.load()
+    im.close()
 
 
 @pytest.mark.parametrize(
@@ -341,16 +379,18 @@ def test_apng_syntax_errors() -> None:
 def test_apng_sequence_errors(test_file: str) -> None:
     with pytest.raises(SyntaxError):
         with Image.open(f"Tests/images/apng/{test_file}") as im:
+            assert isinstance(im, PngImagePlugin.PngImageFile)
             im.seek(im.n_frames - 1)
             im.load()
 
 
 def test_apng_save(tmp_path: Path) -> None:
     with Image.open("Tests/images/apng/single_frame.png") as im:
-        test_file = str(tmp_path / "temp.png")
+        test_file = tmp_path / "temp.png"
         im.save(test_file, save_all=True)
 
     with Image.open(test_file) as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.load()
         assert not im.is_animated
         assert im.n_frames == 1
@@ -366,6 +406,7 @@ def test_apng_save(tmp_path: Path) -> None:
         )
 
     with Image.open(test_file) as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         im.load()
         assert im.is_animated
         assert im.n_frames == 2
@@ -377,7 +418,7 @@ def test_apng_save(tmp_path: Path) -> None:
 
 
 def test_apng_save_alpha(tmp_path: Path) -> None:
-    test_file = str(tmp_path / "temp.png")
+    test_file = tmp_path / "temp.png"
 
     im = Image.new("RGBA", (1, 1), (255, 0, 0, 255))
     im2 = Image.new("RGBA", (1, 1), (255, 0, 0, 127))
@@ -395,7 +436,7 @@ def test_apng_save_split_fdat(tmp_path: Path) -> None:
     # frames with image data spanning multiple fdAT chunks (in this case
     # both the default image and first animation frame will span multiple
     # data chunks)
-    test_file = str(tmp_path / "temp.png")
+    test_file = tmp_path / "temp.png"
     with Image.open("Tests/images/old-style-jpeg-compression.png") as im:
         frames = [im.copy(), Image.new("RGBA", im.size, (255, 0, 0, 255))]
         im.save(
@@ -405,17 +446,13 @@ def test_apng_save_split_fdat(tmp_path: Path) -> None:
             append_images=frames,
         )
     with Image.open(test_file) as im:
-        exception = None
+        assert isinstance(im, PngImagePlugin.PngImageFile)
-        try:
+        im.seek(im.n_frames - 1)
-            im.seek(im.n_frames - 1)
+        im.load()
-            im.load()
-        except Exception as e:
-            exception = e
-        assert exception is None
 
 
 def test_apng_save_duration_loop(tmp_path: Path) -> None:
-    test_file = str(tmp_path / "temp.png")
+    test_file = tmp_path / "temp.png"
     with Image.open("Tests/images/apng/delay.png") as im:
         frames = []
         durations = []
@@ -452,6 +489,7 @@ def test_apng_save_duration_loop(tmp_path: Path) -> None:
         test_file, save_all=True, append_images=[frame, frame], duration=[500, 100, 150]
     )
     with Image.open(test_file) as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert im.n_frames == 1
         assert "duration" not in im.info
 
@@ -463,6 +501,7 @@ def test_apng_save_duration_loop(tmp_path: Path) -> None:
         duration=[500, 100, 150],
     )
     with Image.open(test_file) as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert im.n_frames == 2
         assert im.info["duration"] == 600
 
@@ -473,12 +512,13 @@ def test_apng_save_duration_loop(tmp_path: Path) -> None:
     frame.info["duration"] = 300
     frame.save(test_file, save_all=True, append_images=[frame, different_frame])
     with Image.open(test_file) as im:
+        assert isinstance(im, PngImagePlugin.PngImageFile)
         assert im.n_frames == 2
         assert im.info["duration"] == 600
 
 
 def test_apng_save_disposal(tmp_path: Path) -> None:
-    test_file = str(tmp_path / "temp.png")
+    test_file = tmp_path / "temp.png"
     size = (128, 64)
     red = Image.new("RGBA", size, (255, 0, 0, 255))
     green = Image.new("RGBA", size, (0, 255, 0, 255))
@@ -579,7 +619,7 @@ def test_apng_save_disposal(tmp_path: Path) -> None:
 
 
 def test_apng_save_disposal_previous(tmp_path: Path) -> None:
-    test_file = str(tmp_path / "temp.png")
+    test_file = tmp_path / "temp.png"
     size = (128, 64)
     blue = Image.new("RGBA", size, (0, 0, 255, 255))
     red = Image.new("RGBA", size, (255, 0, 0, 255))
@@ -601,7 +641,7 @@ def test_apng_save_disposal_previous(tmp_path: Path) -> None:
 
 
 def test_apng_save_blend(tmp_path: Path) -> None:
-    test_file = str(tmp_path / "temp.png")
+    test_file = tmp_path / "temp.png"
     size = (128, 64)
     red = Image.new("RGBA", size, (255, 0, 0, 255))
     green = Image.new("RGBA", size, (0, 255, 0, 255))
@@ -669,7 +709,7 @@ def test_apng_save_blend(tmp_path: Path) -> None:
 
 
 def test_apng_save_size(tmp_path: Path) -> None:
-    test_file = str(tmp_path / "temp.png")
+    test_file = tmp_path / "temp.png"
 
     im = Image.new("L", (100, 100))
     im.save(test_file, save_all=True, append_images=[Image.new("L", (200, 200))])
@@ -693,7 +733,7 @@ def test_seek_after_close() -> None:
 def test_different_modes_in_later_frames(
     mode: str, default_image: bool, duplicate: bool, tmp_path: Path
 ) -> None:
-    test_file = str(tmp_path / "temp.png")
+    test_file = tmp_path / "temp.png"
 
     im = Image.new("L", (1, 1))
     im.save(
@@ -707,7 +747,7 @@ def test_different_modes_in_later_frames(
 
 
 def test_different_durations(tmp_path: Path) -> None:
-    test_file = str(tmp_path / "temp.png")
+    test_file = tmp_path / "temp.png"
 
     with Image.open("Tests/images/apng/different_durations.png") as im:
         for _ in range(3):

Tests/test_file_avif.py

@@ -0,0 +1,781 @@
+from __future__ import annotations
+
+import gc
+import os
+import re
+import warnings
+from collections.abc import Generator, Sequence
+from contextlib import contextmanager
+from io import BytesIO
+from pathlib import Path
+from typing import Any
+
+import pytest
+
+from PIL import (
+    AvifImagePlugin,
+    Image,
+    ImageDraw,
+    ImageFile,
+    UnidentifiedImageError,
+    features,
+)
+
+from .helper import (
+    PillowLeakTestCase,
+    assert_image,
+    assert_image_similar,
+    assert_image_similar_tofile,
+    hopper,
+    skip_unless_feature,
+)
+
+try:
+    from PIL import _avif
+
+    HAVE_AVIF = True
+except ImportError:
+    HAVE_AVIF = False
+
+
+TEST_AVIF_FILE = "Tests/images/avif/hopper.avif"
+
+
+def assert_xmp_orientation(xmp: bytes, expected: int) -> None:
+    assert int(xmp.split(b'tiff:Orientation="')[1].split(b'"')[0]) == expected
+
+
+def roundtrip(im: ImageFile.ImageFile, **options: Any) -> ImageFile.ImageFile:
+    out = BytesIO()
+    im.save(out, "AVIF", **options)
+    return Image.open(out)
+
+
+def skip_unless_avif_decoder(codec_name: str) -> pytest.MarkDecorator:
+    reason = f"{codec_name} decode not available"
+    return pytest.mark.skipif(
+        not HAVE_AVIF or not _avif.decoder_codec_available(codec_name), reason=reason
+    )
+
+
+def skip_unless_avif_encoder(codec_name: str) -> pytest.MarkDecorator:
+    reason = f"{codec_name} encode not available"
+    return pytest.mark.skipif(
+        not HAVE_AVIF or not _avif.encoder_codec_available(codec_name), reason=reason
+    )
+
+
+def is_docker_qemu() -> bool:
+    try:
+        init_proc_exe = os.readlink("/proc/1/exe")
+    except (FileNotFoundError, PermissionError):
+        return False
+    return "qemu" in init_proc_exe
+
+
+class TestUnsupportedAvif:
+    def test_unsupported(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        monkeypatch.setattr(AvifImagePlugin, "SUPPORTED", False)
+
+        with pytest.raises(UnidentifiedImageError):
+            with pytest.warns(UserWarning, match="AVIF support not installed"):
+                with Image.open(TEST_AVIF_FILE):
+                    pass
+
+    def test_unsupported_open(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        monkeypatch.setattr(AvifImagePlugin, "SUPPORTED", False)
+
+        with pytest.raises(SyntaxError):
+            AvifImagePlugin.AvifImageFile(TEST_AVIF_FILE)
+
+
+@skip_unless_feature("avif")
+class TestFileAvif:
+    def test_version(self) -> None:
+        version = features.version_module("avif")
+        assert version is not None
+        assert re.search(r"^\d+\.\d+\.\d+$", version)
+
+    def test_codec_version(self) -> None:
+        assert AvifImagePlugin.get_codec_version("unknown") is None
+
+        for codec_name in ("aom", "dav1d", "rav1e", "svt"):
+            codec_version = AvifImagePlugin.get_codec_version(codec_name)
+            if _avif.decoder_codec_available(
+                codec_name
+            ) or _avif.encoder_codec_available(codec_name):
+                assert codec_version is not None
+                assert re.search(r"^v?\d+\.\d+\.\d+(-([a-z\d])+)*$", codec_version)
+            else:
+                assert codec_version is None
+
+    def test_read(self) -> None:
+        """
+        Can we read an AVIF file without error?
+        Does it have the bits we expect?
+        """
+
+        with Image.open(TEST_AVIF_FILE) as image:
+            assert image.mode == "RGB"
+            assert image.size == (128, 128)
+            assert image.format == "AVIF"
+            assert image.get_format_mimetype() == "image/avif"
+            image.getdata()
+
+            # generated with:
+            # avifdec hopper.avif hopper_avif_write.png
+            assert_image_similar_tofile(
+                image, "Tests/images/avif/hopper_avif_write.png", 11.5
+            )
+
+    def test_write_rgb(self, tmp_path: Path) -> None:
+        """
+        Can we write a RGB mode file to avif without error?
+        Does it have the bits we expect?
+        """
+
+        temp_file = tmp_path / "temp.avif"
+
+        im = hopper()
+        im.save(temp_file)
+        with Image.open(temp_file) as reloaded:
+            assert reloaded.mode == "RGB"
+            assert reloaded.size == (128, 128)
+            assert reloaded.format == "AVIF"
+            reloaded.getdata()
+
+            # avifdec hopper.avif avif/hopper_avif_write.png
+            assert_image_similar_tofile(
+                reloaded, "Tests/images/avif/hopper_avif_write.png", 6.02
+            )
+
+            # This test asserts that the images are similar. If the average pixel
+            # difference between the two images is less than the epsilon value,
+            # then we're going to accept that it's a reasonable lossy version of
+            # the image.
+            assert_image_similar(reloaded, im, 8.62)
+
+    def test_AvifEncoder_with_invalid_args(self) -> None:
+        """
+        Calling encoder functions with no arguments should result in an error.
+        """
+        with pytest.raises(TypeError):
+            _avif.AvifEncoder()
+
+    def test_AvifDecoder_with_invalid_args(self) -> None:
+        """
+        Calling decoder functions with no arguments should result in an error.
+        """
+        with pytest.raises(TypeError):
+            _avif.AvifDecoder()
+
+    def test_invalid_dimensions(self, tmp_path: Path) -> None:
+        test_file = tmp_path / "temp.avif"
+        im = Image.new("RGB", (0, 0))
+        with pytest.raises(ValueError):
+            im.save(test_file)
+
+    def test_encoder_finish_none_error(
+        self, monkeypatch: pytest.MonkeyPatch, tmp_path: Path
+    ) -> None:
+        """Save should raise an OSError if AvifEncoder.finish returns None"""
+
+        class _mock_avif:
+            class AvifEncoder:
+                def __init__(self, *args: Any) -> None:
+                    pass
+
+                def add(self, *args: Any) -> None:
+                    pass
+
+                def finish(self) -> None:
+                    return None
+
+        monkeypatch.setattr(AvifImagePlugin, "_avif", _mock_avif)
+
+        im = Image.new("RGB", (150, 150))
+        test_file = tmp_path / "temp.avif"
+        with pytest.raises(OSError):
+            im.save(test_file)
+
+    def test_no_resource_warning(self, tmp_path: Path) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            with warnings.catch_warnings():
+                warnings.simplefilter("error")
+
+                im.save(tmp_path / "temp.avif")
+
+    @pytest.mark.parametrize("major_brand", [b"avif", b"avis", b"mif1", b"msf1"])
+    def test_accept_ftyp_brands(self, major_brand: bytes) -> None:
+        data = b"\x00\x00\x00\x1cftyp%s\x00\x00\x00\x00" % major_brand
+        assert AvifImagePlugin._accept(data) is True
+
+    def test_file_pointer_could_be_reused(self) -> None:
+        with open(TEST_AVIF_FILE, "rb") as blob:
+            with Image.open(blob) as im:
+                im.load()
+            with Image.open(blob) as im:
+                im.load()
+
+    def test_background_from_gif(self, tmp_path: Path) -> None:
+        with Image.open("Tests/images/chi.gif") as im:
+            original_value = im.convert("RGB").getpixel((1, 1))
+
+            # Save as AVIF
+            out_avif = tmp_path / "temp.avif"
+            im.save(out_avif, save_all=True)
+
+        # Save as GIF
+        out_gif = tmp_path / "temp.gif"
+        with Image.open(out_avif) as im:
+            im.save(out_gif)
+
+        with Image.open(out_gif) as reread:
+            reread_value = reread.convert("RGB").getpixel((1, 1))
+        difference = sum([abs(original_value[i] - reread_value[i]) for i in range(3)])
+        assert difference <= 6
+
+    def test_save_single_frame(self, tmp_path: Path) -> None:
+        temp_file = tmp_path / "temp.avif"
+        with Image.open("Tests/images/chi.gif") as im:
+            im.save(temp_file)
+        with Image.open(temp_file) as im:
+            assert im.n_frames == 1
+
+    def test_invalid_file(self) -> None:
+        invalid_file = "Tests/images/flower.jpg"
+
+        with pytest.raises(SyntaxError):
+            AvifImagePlugin.AvifImageFile(invalid_file)
+
+    def test_load_transparent_rgb(self) -> None:
+        test_file = "Tests/images/avif/transparency.avif"
+        with Image.open(test_file) as im:
+            assert_image(im, "RGBA", (64, 64))
+
+            # image has 876 transparent pixels
+            colors = im.getchannel("A").getcolors()
+            assert colors is not None
+            assert colors[0] == (876, 0)
+
+    def test_save_transparent(self, tmp_path: Path) -> None:
+        im = Image.new("RGBA", (10, 10), (0, 0, 0, 0))
+        assert im.getcolors() == [(100, (0, 0, 0, 0))]
+
+        test_file = tmp_path / "temp.avif"
+        im.save(test_file)
+
+        # check if saved image contains the same transparency
+        with Image.open(test_file) as im:
+            assert_image(im, "RGBA", (10, 10))
+            assert im.getcolors() == [(100, (0, 0, 0, 0))]
+
+    def test_save_icc_profile(self) -> None:
+        with Image.open("Tests/images/avif/icc_profile_none.avif") as im:
+            assert "icc_profile" not in im.info
+
+            with Image.open("Tests/images/avif/icc_profile.avif") as with_icc:
+                expected_icc = with_icc.info["icc_profile"]
+                assert expected_icc is not None
+
+                im = roundtrip(im, icc_profile=expected_icc)
+                assert im.info["icc_profile"] == expected_icc
+
+    def test_discard_icc_profile(self) -> None:
+        with Image.open("Tests/images/avif/icc_profile.avif") as im:
+            im = roundtrip(im, icc_profile=None)
+        assert "icc_profile" not in im.info
+
+    def test_roundtrip_icc_profile(self) -> None:
+        with Image.open("Tests/images/avif/icc_profile.avif") as im:
+            expected_icc = im.info["icc_profile"]
+
+            im = roundtrip(im)
+        assert im.info["icc_profile"] == expected_icc
+
+    def test_roundtrip_no_icc_profile(self) -> None:
+        with Image.open("Tests/images/avif/icc_profile_none.avif") as im:
+            assert "icc_profile" not in im.info
+
+            im = roundtrip(im)
+        assert "icc_profile" not in im.info
+
+    def test_exif(self) -> None:
+        # With an EXIF chunk
+        with Image.open("Tests/images/avif/exif.avif") as im:
+            exif = im.getexif()
+        assert exif[274] == 1
+
+        with Image.open("Tests/images/avif/xmp_tags_orientation.avif") as im:
+            exif = im.getexif()
+        assert exif[274] == 3
+
+    @pytest.mark.parametrize("use_bytes", [True, False])
+    @pytest.mark.parametrize("orientation", [1, 2, 3, 4, 5, 6, 7, 8])
+    def test_exif_save(
+        self,
+        tmp_path: Path,
+        use_bytes: bool,
+        orientation: int,
+    ) -> None:
+        exif = Image.Exif()
+        exif[274] = orientation
+        exif_data = exif.tobytes()
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            im.save(test_file, exif=exif_data if use_bytes else exif)
+
+        with Image.open(test_file) as reloaded:
+            if orientation == 1:
+                assert "exif" not in reloaded.info
+            else:
+                assert reloaded.getexif()[274] == orientation
+                assert reloaded.info["exif"] == exif_data
+
+    def test_exif_without_orientation(self, tmp_path: Path) -> None:
+        exif = Image.Exif()
+        exif[272] = b"test"
+        exif_data = exif.tobytes()
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            im.save(test_file, exif=exif)
+
+        with Image.open(test_file) as reloaded:
+            assert reloaded.info["exif"] == exif_data
+
+    def test_exif_invalid(self, tmp_path: Path) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            with pytest.raises(SyntaxError):
+                im.save(test_file, exif=b"invalid")
+
+    @pytest.mark.parametrize(
+        "rot, mir, exif_orientation",
+        [
+            (0, 0, 4),
+            (0, 1, 2),
+            (1, 0, 5),
+            (1, 1, 7),
+            (2, 0, 2),
+            (2, 1, 4),
+            (3, 0, 7),
+            (3, 1, 5),
+        ],
+    )
+    def test_rot_mir_exif(
+        self, rot: int, mir: int, exif_orientation: int, tmp_path: Path
+    ) -> None:
+        with Image.open(f"Tests/images/avif/rot{rot}mir{mir}.avif") as im:
+            exif = im.getexif()
+            assert exif[274] == exif_orientation
+
+            test_file = tmp_path / "temp.avif"
+            im.save(test_file, exif=exif)
+        with Image.open(test_file) as reloaded:
+            assert reloaded.getexif()[274] == exif_orientation
+
+    def test_xmp(self) -> None:
+        with Image.open("Tests/images/avif/xmp_tags_orientation.avif") as im:
+            xmp = im.info["xmp"]
+        assert_xmp_orientation(xmp, 3)
+
+    def test_xmp_save(self, tmp_path: Path) -> None:
+        xmp_arg = "\n".join(
+            [
+                '<?xpacket begin="" id="W5M0MpCehiHzreSzNTczkc9d"?>',
+                '<x:xmpmeta xmlns:x="adobe:ns:meta/">',
+                ' <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">',
+                '  <rdf:Description rdf:about=""',
+                '    xmlns:tiff="http://ns.adobe.com/tiff/1.0/"',
+                '   tiff:Orientation="1"/>',
+                " </rdf:RDF>",
+                "</x:xmpmeta>",
+                '<?xpacket end="r"?>',
+            ]
+        )
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            im.save(test_file, xmp=xmp_arg)
+
+        with Image.open(test_file) as reloaded:
+            xmp = reloaded.info["xmp"]
+        assert_xmp_orientation(xmp, 1)
+
+    def test_tell(self) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            assert im.tell() == 0
+
+    def test_seek(self) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            im.seek(0)
+
+            with pytest.raises(EOFError):
+                im.seek(1)
+
+    @pytest.mark.parametrize("subsampling", ["4:4:4", "4:2:2", "4:2:0", "4:0:0"])
+    def test_encoder_subsampling(self, tmp_path: Path, subsampling: str) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            im.save(test_file, subsampling=subsampling)
+
+    def test_encoder_subsampling_invalid(self, tmp_path: Path) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            with pytest.raises(ValueError):
+                im.save(test_file, subsampling="foo")
+
+    @pytest.mark.parametrize("value", ["full", "limited"])
+    def test_encoder_range(self, tmp_path: Path, value: str) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            im.save(test_file, range=value)
+
+    def test_encoder_range_invalid(self, tmp_path: Path) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            with pytest.raises(ValueError):
+                im.save(test_file, range="foo")
+
+    @skip_unless_avif_encoder("aom")
+    def test_encoder_codec_param(self, tmp_path: Path) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            im.save(test_file, codec="aom")
+
+    def test_encoder_codec_invalid(self, tmp_path: Path) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            with pytest.raises(ValueError):
+                im.save(test_file, codec="foo")
+
+    @skip_unless_avif_decoder("dav1d")
+    def test_decoder_codec_cannot_encode(self, tmp_path: Path) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            with pytest.raises(ValueError):
+                im.save(test_file, codec="dav1d")
+
+    @skip_unless_avif_encoder("aom")
+    @pytest.mark.parametrize(
+        "advanced",
+        [
+            {
+                "aq-mode": "1",
+                "enable-chroma-deltaq": "1",
+            },
+            (("aq-mode", "1"), ("enable-chroma-deltaq", "1")),
+            [("aq-mode", "1"), ("enable-chroma-deltaq", "1")],
+        ],
+    )
+    def test_encoder_advanced_codec_options(
+        self, advanced: dict[str, str] | Sequence[tuple[str, str]]
+    ) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            ctrl_buf = BytesIO()
+            im.save(ctrl_buf, "AVIF", codec="aom")
+            test_buf = BytesIO()
+            im.save(
+                test_buf,
+                "AVIF",
+                codec="aom",
+                advanced=advanced,
+            )
+            assert ctrl_buf.getvalue() != test_buf.getvalue()
+
+    @skip_unless_avif_encoder("aom")
+    @pytest.mark.parametrize("advanced", [{"foo": "bar"}, {"foo": 1234}, 1234])
+    def test_encoder_advanced_codec_options_invalid(
+        self, tmp_path: Path, advanced: dict[str, str] | int
+    ) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            with pytest.raises(ValueError):
+                im.save(test_file, codec="aom", advanced=advanced)
+
+    @skip_unless_avif_decoder("aom")
+    def test_decoder_codec_param(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        monkeypatch.setattr(AvifImagePlugin, "DECODE_CODEC_CHOICE", "aom")
+
+        with Image.open(TEST_AVIF_FILE) as im:
+            assert im.size == (128, 128)
+
+    @skip_unless_avif_encoder("rav1e")
+    def test_encoder_codec_cannot_decode(
+        self, monkeypatch: pytest.MonkeyPatch, tmp_path: Path
+    ) -> None:
+        monkeypatch.setattr(AvifImagePlugin, "DECODE_CODEC_CHOICE", "rav1e")
+
+        with pytest.raises(ValueError):
+            with Image.open(TEST_AVIF_FILE):
+                pass
+
+    def test_decoder_codec_invalid(self, monkeypatch: pytest.MonkeyPatch) -> None:
+        monkeypatch.setattr(AvifImagePlugin, "DECODE_CODEC_CHOICE", "foo")
+
+        with pytest.raises(ValueError):
+            with Image.open(TEST_AVIF_FILE):
+                pass
+
+    @skip_unless_avif_encoder("aom")
+    def test_encoder_codec_available(self) -> None:
+        assert _avif.encoder_codec_available("aom") is True
+
+    def test_encoder_codec_available_bad_params(self) -> None:
+        with pytest.raises(TypeError):
+            _avif.encoder_codec_available()
+
+    @skip_unless_avif_decoder("dav1d")
+    def test_encoder_codec_available_cannot_decode(self) -> None:
+        assert _avif.encoder_codec_available("dav1d") is False
+
+    def test_encoder_codec_available_invalid(self) -> None:
+        assert _avif.encoder_codec_available("foo") is False
+
+    def test_encoder_quality_valueerror(self, tmp_path: Path) -> None:
+        with Image.open(TEST_AVIF_FILE) as im:
+            test_file = tmp_path / "temp.avif"
+            with pytest.raises(ValueError):
+                im.save(test_file, quality="invalid")
+
+    @skip_unless_avif_decoder("aom")
+    def test_decoder_codec_available(self) -> None:
+        assert _avif.decoder_codec_available("aom") is True
+
+    def test_decoder_codec_available_bad_params(self) -> None:
+        with pytest.raises(TypeError):
+            _avif.decoder_codec_available()
+
+    @skip_unless_avif_encoder("rav1e")
+    def test_decoder_codec_available_cannot_decode(self) -> None:
+        assert _avif.decoder_codec_available("rav1e") is False
+
+    def test_decoder_codec_available_invalid(self) -> None:
+        assert _avif.decoder_codec_available("foo") is False
+
+    def test_p_mode_transparency(self, tmp_path: Path) -> None:
+        im = Image.new("P", size=(64, 64))
+        draw = ImageDraw.Draw(im)
+        draw.rectangle(xy=[(0, 0), (32, 32)], fill=255)
+        draw.rectangle(xy=[(32, 32), (64, 64)], fill=255)
+
+        out_png = tmp_path / "temp.png"
+        im.save(out_png, transparency=0)
+        with Image.open(out_png) as im_png:
+            out_avif = tmp_path / "temp.avif"
+            im_png.save(out_avif, quality=100)
+
+            with Image.open(out_avif) as expected:
+                assert_image_similar(im_png.convert("RGBA"), expected, 0.17)
+
+    def test_decoder_strict_flags(self) -> None:
+        # This would fail if full avif strictFlags were enabled
+        with Image.open("Tests/images/avif/hopper-missing-pixi.avif") as im:
+            assert im.size == (128, 128)
+
+    @skip_unless_avif_encoder("aom")
+    @pytest.mark.parametrize("speed", [-1, 1, 11])
+    def test_aom_optimizations(self, tmp_path: Path, speed: int) -> None:
+        test_file = tmp_path / "temp.avif"
+        hopper().save(test_file, codec="aom", speed=speed)
+
+    @skip_unless_avif_encoder("svt")
+    def test_svt_optimizations(self, tmp_path: Path) -> None:
+        test_file = tmp_path / "temp.avif"
+        hopper().save(test_file, codec="svt", speed=1)
+
+
+@skip_unless_feature("avif")
+class TestAvifAnimation:
+    @contextmanager
+    def star_frames(self) -> Generator[list[Image.Image], None, None]:
+        with Image.open("Tests/images/avif/star.png") as f:
+            yield [f, f.rotate(90), f.rotate(180), f.rotate(270)]
+
+    def test_n_frames(self) -> None:
+        """
+        Ensure that AVIF format sets n_frames and is_animated attributes
+        correctly.
+        """
+
+        with Image.open(TEST_AVIF_FILE) as im:
+            assert im.n_frames == 1
+            assert not im.is_animated
+
+        with Image.open("Tests/images/avif/star.avifs") as im:
+            assert im.n_frames == 5
+            assert im.is_animated
+
+    def test_write_animation_P(self, tmp_path: Path) -> None:
+        """
+        Convert an animated GIF to animated AVIF, then compare the frame
+        count, and ensure the frames are visually similar to the originals.
+        """
+
+        with Image.open("Tests/images/avif/star.gif") as original:
+            assert original.n_frames > 1
+
+            temp_file = tmp_path / "temp.avif"
+            original.save(temp_file, save_all=True)
+            with Image.open(temp_file) as im:
+                assert im.n_frames == original.n_frames
+
+                # Compare first frame in P mode to frame from original GIF
+                assert_image_similar(im, original.convert("RGBA"), 2)
+
+                # Compare later frames in RGBA mode to frames from original GIF
+                for frame in range(1, original.n_frames):
+                    original.seek(frame)
+                    im.seek(frame)
+                    assert_image_similar(im, original, 2.54)
+
+    def test_write_animation_RGBA(self, tmp_path: Path) -> None:
+        """
+        Write an animated AVIF from RGBA frames, and ensure the frames
+        are visually similar to the originals.
+        """
+
+        def check(temp_file: Path) -> None:
+            with Image.open(temp_file) as im:
+                assert im.n_frames == 4
+
+                # Compare first frame to original
+                assert_image_similar(im, frame1, 2.7)
+
+                # Compare second frame to original
+                im.seek(1)
+                assert_image_similar(im, frame2, 4.1)
+
+        with self.star_frames() as frames:
+            frame1 = frames[0]
+            frame2 = frames[1]
+            temp_file1 = tmp_path / "temp.avif"
+            frames[0].copy().save(temp_file1, save_all=True, append_images=frames[1:])
+            check(temp_file1)
+
+            # Test appending using a generator
+            def imGenerator(
+                ims: list[Image.Image],
+            ) -> Generator[Image.Image, None, None]:
+                yield from ims
+
+            temp_file2 = tmp_path / "temp_generator.avif"
+            frames[0].copy().save(
+                temp_file2,
+                save_all=True,
+                append_images=imGenerator(frames[1:]),
+            )
+            check(temp_file2)
+
+    def test_sequence_dimension_mismatch_check(self, tmp_path: Path) -> None:
+        temp_file = tmp_path / "temp.avif"
+        frame1 = Image.new("RGB", (100, 100))
+        frame2 = Image.new("RGB", (150, 150))
+        with pytest.raises(ValueError):
+            frame1.save(temp_file, save_all=True, append_images=[frame2])
+
+    def test_heif_raises_unidentified_image_error(self) -> None:
+        with pytest.raises(UnidentifiedImageError):
+            with Image.open("Tests/images/avif/hopper.heif"):
+                pass
+
+    @pytest.mark.parametrize("alpha_premultiplied", [False, True])
+    def test_alpha_premultiplied(
+        self, tmp_path: Path, alpha_premultiplied: bool
+    ) -> None:
+        temp_file = tmp_path / "temp.avif"
+        color = (200, 200, 200, 1)
+        im = Image.new("RGBA", (1, 1), color)
+        im.save(temp_file, alpha_premultiplied=alpha_premultiplied)
+
+        expected = (255, 255, 255, 1) if alpha_premultiplied else color
+        with Image.open(temp_file) as reloaded:
+            assert reloaded.getpixel((0, 0)) == expected
+
+    def test_timestamp_and_duration(self, tmp_path: Path) -> None:
+        """
+        Try passing a list of durations, and make sure the encoded
+        timestamps and durations are correct.
+        """
+
+        durations = [1, 10, 20, 30, 40]
+        temp_file = tmp_path / "temp.avif"
+        with self.star_frames() as frames:
+            frames[0].save(
+                temp_file,
+                save_all=True,
+                append_images=(frames[1:] + [frames[0]]),
+                duration=durations,
+            )
+
+        with Image.open(temp_file) as im:
+            assert im.n_frames == 5
+            assert im.is_animated
+
+            # Check that timestamps and durations match original values specified
+            timestamp = 0
+            for frame in range(im.n_frames):
+                im.seek(frame)
+                im.load()
+                assert im.info["duration"] == durations[frame]
+                assert im.info["timestamp"] == timestamp
+                timestamp += durations[frame]
+
+    def test_seeking(self, tmp_path: Path) -> None:
+        """
+        Create an animated AVIF file, and then try seeking through frames in
+        reverse-order, verifying the timestamps and durations are correct.
+        """
+
+        duration = 33
+        temp_file = tmp_path / "temp.avif"
+        with self.star_frames() as frames:
+            frames[0].save(
+                temp_file,
+                save_all=True,
+                append_images=(frames[1:] + [frames[0]]),
+                duration=duration,
+            )
+
+        with Image.open(temp_file) as im:
+            assert im.n_frames == 5
+            assert im.is_animated
+
+            # Traverse frames in reverse, checking timestamps and durations
+            timestamp = duration * (im.n_frames - 1)
+            for frame in reversed(range(im.n_frames)):
+                im.seek(frame)
+                im.load()
+                assert im.info["duration"] == duration
+                assert im.info["timestamp"] == timestamp
+                timestamp -= duration
+
+    def test_seek_errors(self) -> None:
+        with Image.open("Tests/images/avif/star.avifs") as im:
+            with pytest.raises(EOFError):
+                im.seek(-1)
+
+            with pytest.raises(EOFError):
+                im.seek(42)
+
+
+MAX_THREADS = os.cpu_count() or 1
+
+
+@skip_unless_feature("avif")
+class TestAvifLeaks(PillowLeakTestCase):
+    mem_limit = MAX_THREADS * 3 * 1024
+    iterations = 100
+
+    @pytest.mark.skipif(
+        is_docker_qemu(), reason="Skipping on cross-architecture containers"
+    )
+    def test_leak_load(self) -> None:
+        with open(TEST_AVIF_FILE, "rb") as f:
+            im_data = f.read()
+
+        def core() -> None:
+            with Image.open(BytesIO(im_data)) as im:
+                im.load()
+            gc.collect()
+
+        self._test_leak(core)

Tests/test_file_blp.py

@@ -4,12 +4,11 @@ from pathlib import Path
 
 import pytest
 
-from PIL import Image
+from PIL import BlpImagePlugin, Image
 
 from .helper import (
-    assert_image_equal,
     assert_image_equal_tofile,
-    assert_image_similar,
+    assert_image_similar_tofile,
     hopper,
 )
 
@@ -19,6 +18,7 @@ def test_load_blp1() -> None:
         assert_image_equal_tofile(im, "Tests/images/blp/blp1_jpeg.png")
 
     with Image.open("Tests/images/blp/blp1_jpeg2.blp") as im:
+        assert im.mode == "RGBA"
         im.load()
 
 
@@ -37,25 +37,30 @@ def test_load_blp2_dxt1a() -> None:
         assert_image_equal_tofile(im, "Tests/images/blp/blp2_dxt1a.png")
 
 
+def test_invalid_file() -> None:
+    invalid_file = "Tests/images/flower.jpg"
+
+    with pytest.raises(BlpImagePlugin.BLPFormatError):
+        BlpImagePlugin.BlpImageFile(invalid_file)
+
+
 def test_save(tmp_path: Path) -> None:
-    f = str(tmp_path / "temp.blp")
+    f = tmp_path / "temp.blp"
 
     for version in ("BLP1", "BLP2"):
         im = hopper("P")
         im.save(f, blp_version=version)
 
-        with Image.open(f) as reloaded:
+        assert_image_equal_tofile(im.convert("RGB"), f)
-            assert_image_equal(im.convert("RGB"), reloaded)
 
         with Image.open("Tests/images/transparent.png") as im:
-            f = str(tmp_path / "temp.blp")
+            f = tmp_path / "temp.blp"
             im.convert("P").save(f, blp_version=version)
 
-            with Image.open(f) as reloaded:
+            assert_image_similar_tofile(im, f, 8)
-                assert_image_similar(im, reloaded, 8)
 
     im = hopper()
-    with pytest.raises(ValueError):
+    with pytest.raises(ValueError, match="Unsupported BLP image mode"):
         im.save(f)
 
 

Tests/test_file_bmp.py

@@ -15,25 +15,19 @@ from .helper import (
 )
 
 
-def test_sanity(tmp_path: Path) -> None:
+@pytest.mark.parametrize("mode", ("1", "L", "P", "RGB"))
-    def roundtrip(im: Image.Image) -> None:
+def test_sanity(mode: str, tmp_path: Path) -> None:
-        outfile = str(tmp_path / "temp.bmp")
+    outfile = tmp_path / "temp.bmp"
 
-        im.save(outfile, "BMP")
+    im = hopper(mode)
+    im.save(outfile, "BMP")
 
-        with Image.open(outfile) as reloaded:
+    with Image.open(outfile) as reloaded:
-            reloaded.load()
+        reloaded.load()
-            assert im.mode == reloaded.mode
+        assert im.mode == reloaded.mode
-            assert im.size == reloaded.size
+        assert im.size == reloaded.size
-            assert reloaded.format == "BMP"
+        assert reloaded.format == "BMP"
-            assert reloaded.get_format_mimetype() == "image/bmp"
+        assert reloaded.get_format_mimetype() == "image/bmp"
-
-    roundtrip(hopper())
-
-    roundtrip(hopper("1"))
-    roundtrip(hopper("L"))
-    roundtrip(hopper("P"))
-    roundtrip(hopper("RGB"))
 
 
 def test_invalid_file() -> None:
@@ -66,7 +60,7 @@ def test_small_palette(tmp_path: Path) -> None:
     colors = [0, 0, 0, 125, 125, 125, 255, 255, 255]
     im.putpalette(colors)
 
-    out = str(tmp_path / "temp.bmp")
+    out = tmp_path / "temp.bmp"
     im.save(out)
 
     with Image.open(out) as reloaded:
@@ -74,7 +68,7 @@ def test_small_palette(tmp_path: Path) -> None:
 
 
 def test_save_too_large(tmp_path: Path) -> None:
-    outfile = str(tmp_path / "temp.bmp")
+    outfile = tmp_path / "temp.bmp"
     with Image.new("RGB", (1, 1)) as im:
         im._size = (37838, 37838)
         with pytest.raises(ValueError):
@@ -96,7 +90,7 @@ def test_dpi() -> None:
 def test_save_bmp_with_dpi(tmp_path: Path) -> None:
     # Test for #1301
     # Arrange
-    outfile = str(tmp_path / "temp.jpg")
+    outfile = tmp_path / "temp.jpg"
     with Image.open("Tests/images/hopper.bmp") as im:
         assert im.info["dpi"] == (95.98654816726399, 95.98654816726399)
 
@@ -112,7 +106,7 @@ def test_save_bmp_with_dpi(tmp_path: Path) -> None:
 
 
 def test_save_float_dpi(tmp_path: Path) -> None:
-    outfile = str(tmp_path / "temp.bmp")
+    outfile = tmp_path / "temp.bmp"
     with Image.open("Tests/images/hopper.bmp") as im:
         im.save(outfile, dpi=(72.21216100543306, 72.21216100543306))
         with Image.open(outfile) as reloaded:
@@ -152,7 +146,7 @@ def test_dib_header_size(header_size: int, path: str) -> None:
 
 
 def test_save_dib(tmp_path: Path) -> None:
-    outfile = str(tmp_path / "temp.dib")
+    outfile = tmp_path / "temp.dib"
 
     with Image.open("Tests/images/clipboard.dib") as im:
         im.save(outfile)
@@ -196,9 +190,9 @@ def test_rle8() -> None:
     # Signal end of bitmap before the image is finished
     with open("Tests/images/bmp/g/pal8rle.bmp", "rb") as fp:
         data = fp.read(1063) + b"\x01"
-        with Image.open(io.BytesIO(data)) as im:
+    with Image.open(io.BytesIO(data)) as im:
-            with pytest.raises(ValueError):
+        with pytest.raises(ValueError):
-                im.load()
+            im.load()
 
 
 def test_rle4() -> None:
@@ -220,9 +214,9 @@ def test_rle4() -> None:
 def test_rle8_eof(file_name: str, length: int) -> None:
     with open(file_name, "rb") as fp:
         data = fp.read(length)
-        with Image.open(io.BytesIO(data)) as im:
+    with Image.open(io.BytesIO(data)) as im:
-            with pytest.raises(ValueError):
+        with pytest.raises(ValueError):
-                im.load()
+            im.load()
 
 
 def test_offset() -> None:
@@ -230,3 +224,13 @@ def test_offset() -> None:
     # to exclude the palette size from the pixel data offset
     with Image.open("Tests/images/pal8_offset.bmp") as im:
         assert_image_equal_tofile(im, "Tests/images/bmp/g/pal8.bmp")
+
+
+def test_use_raw_alpha(monkeypatch: pytest.MonkeyPatch) -> None:
+    with Image.open("Tests/images/bmp/g/rgb32.bmp") as im:
+        assert im.info["compression"] == BmpImagePlugin.BmpImageFile.COMPRESSIONS["RAW"]
+        assert im.mode == "RGB"
+
+    monkeypatch.setattr(BmpImagePlugin, "USE_RAW_ALPHA", True)
+    with Image.open("Tests/images/bmp/g/rgb32.bmp") as im:
+        assert im.mode == "RGBA"

Tests/test_file_bufrstub.py

@@ -43,7 +43,7 @@ def test_load() -> None:
 def test_save(tmp_path: Path) -> None:
     # Arrange
     im = hopper()
-    tmpfile = str(tmp_path / "temp.bufr")
+    tmpfile = tmp_path / "temp.bufr"
 
     # Act / Assert: stub cannot save without an implemented handler
     with pytest.raises(OSError):
@@ -79,8 +79,8 @@ def test_handler(tmp_path: Path) -> None:
         im.load()
         assert handler.is_loaded()
 
-        temp_file = str(tmp_path / "temp.bufr")
+        temp_file = tmp_path / "temp.bufr"
         im.save(temp_file)
         assert handler.saved
 
-    BufrStubImagePlugin._handler = None
+    BufrStubImagePlugin.register_handler(None)

Tests/test_file_container.py

@@ -4,8 +4,6 @@ import pytest
 
 from PIL import ContainerIO, Image
 
-from .helper import hopper
-
 TEST_FILE = "Tests/images/dummy.container"
 
 
@@ -15,15 +13,15 @@ def test_sanity() -> None:
 
 
 def test_isatty() -> None:
-    with hopper() as im:
+    with open(TEST_FILE, "rb") as fh:
-        container = ContainerIO.ContainerIO(im, 0, 0)
+        container = ContainerIO.ContainerIO(fh, 0, 0)
 
     assert container.isatty() is False
 
 
 def test_seekable() -> None:
-    with hopper() as im:
+    with open(TEST_FILE, "rb") as fh:
-        container = ContainerIO.ContainerIO(im, 0, 0)
+        container = ContainerIO.ContainerIO(fh, 0, 0)
 
     assert container.seekable() is True
 

Tests/test_file_dcx.py

@@ -26,16 +26,18 @@ def test_sanity() -> None:
 
 @pytest.mark.skipif(is_pypy(), reason="Requires CPython")
 def test_unclosed_file() -> None:
-    def open() -> None:
+    def open_test_image() -> None:
         im = Image.open(TEST_FILE)
         im.load()
 
     with pytest.warns(ResourceWarning):
-        open()
+        open_test_image()
 
 
 def test_closed_file() -> None:
     with warnings.catch_warnings():
+        warnings.simplefilter("error")
+
         im = Image.open(TEST_FILE)
         im.load()
         im.close()
@@ -43,6 +45,8 @@ def test_closed_file() -> None:
 
 def test_context_manager() -> None:
     with warnings.catch_warnings():
+        warnings.simplefilter("error")
+
         with Image.open(TEST_FILE) as im:
             im.load()
 
@@ -65,12 +69,14 @@ def test_tell() -> None:
 
 def test_n_frames() -> None:
     with Image.open(TEST_FILE) as im:
+        assert isinstance(im, DcxImagePlugin.DcxImageFile)
         assert im.n_frames == 1
         assert not im.is_animated
 
 
 def test_eoferror() -> None:
     with Image.open(TEST_FILE) as im:
+        assert isinstance(im, DcxImagePlugin.DcxImageFile)
         n_frames = im.n_frames
 
         # Test seeking past the last frame

Tests/test_file_dds.py

@@ -9,7 +9,13 @@ import pytest
 
 from PIL import DdsImagePlugin, Image
 
-from .helper import assert_image_equal, assert_image_equal_tofile, hopper
+from .helper import (
+    assert_image_equal,
+    assert_image_equal_tofile,
+    assert_image_similar,
+    assert_image_similar_tofile,
+    hopper,
+)
 
 TEST_FILE_DXT1 = "Tests/images/dxt1-rgb-4bbp-noalpha_MipMaps-1.dds"
 TEST_FILE_DXT3 = "Tests/images/dxt3-argb-8bbp-explicitalpha_MipMaps-1.dds"
@@ -109,6 +115,32 @@ def test_sanity_ati1_bc4u(image_path: str) -> None:
         assert_image_equal_tofile(im, TEST_FILE_ATI1.replace(".dds", ".png"))
 
 
+def test_dx10_bc2(tmp_path: Path) -> None:
+    out = tmp_path / "temp.dds"
+    with Image.open(TEST_FILE_DXT3) as im:
+        im.save(out, pixel_format="BC2")
+
+    with Image.open(out) as reloaded:
+        assert reloaded.format == "DDS"
+        assert reloaded.mode == "RGBA"
+        assert reloaded.size == (256, 256)
+
+        assert_image_similar(im, reloaded, 3.81)
+
+
+def test_dx10_bc3(tmp_path: Path) -> None:
+    out = tmp_path / "temp.dds"
+    with Image.open(TEST_FILE_DXT5) as im:
+        im.save(out, pixel_format="BC3")
+
+    with Image.open(out) as reloaded:
+        assert reloaded.format == "DDS"
+        assert reloaded.mode == "RGBA"
+        assert reloaded.size == (256, 256)
+
+        assert_image_similar(im, reloaded, 3.69)
+
+
 @pytest.mark.parametrize(
     "image_path",
     (
@@ -331,11 +363,13 @@ def test_dxt5_colorblock_alpha_issue_4142() -> None:
 
     with Image.open("Tests/images/dxt5-colorblock-alpha-issue-4142.dds") as im:
         px = im.getpixel((0, 0))
+        assert isinstance(px, tuple)
         assert px[0] != 0
         assert px[1] != 0
         assert px[2] != 0
 
         px = im.getpixel((1, 0))
+        assert isinstance(px, tuple)
         assert px[0] != 0
         assert px[1] != 0
         assert px[2] != 0
@@ -366,9 +400,9 @@ def test_not_implemented(test_file: str) -> None:
 
 
 def test_save_unsupported_mode(tmp_path: Path) -> None:
-    out = str(tmp_path / "temp.dds")
+    out = tmp_path / "temp.dds"
     im = hopper("HSV")
-    with pytest.raises(OSError):
+    with pytest.raises(OSError, match="cannot write mode HSV as DDS"):
         im.save(out)
 
 
@@ -382,10 +416,115 @@ def test_save_unsupported_mode(tmp_path: Path) -> None:
     ],
 )
 def test_save(mode: str, test_file: str, tmp_path: Path) -> None:
-    out = str(tmp_path / "temp.dds")
+    out = tmp_path / "temp.dds"
     with Image.open(test_file) as im:
         assert im.mode == mode
         im.save(out)
 
-        with Image.open(out) as reloaded:
+        assert_image_equal_tofile(im, out)
-            assert_image_equal(im, reloaded)
+
+
+def test_save_unsupported_pixel_format(tmp_path: Path) -> None:
+    out = tmp_path / "temp.dds"
+    im = hopper()
+    with pytest.raises(OSError, match="cannot write pixel format UNKNOWN"):
+        im.save(out, pixel_format="UNKNOWN")
+
+
+def test_save_dxt1(tmp_path: Path) -> None:
+    # RGB
+    out = tmp_path / "temp.dds"
+    with Image.open(TEST_FILE_DXT1) as im:
+        im.convert("RGB").save(out, pixel_format="DXT1")
+    assert_image_similar_tofile(im, out, 1.84)
+
+    # RGBA
+    im_alpha = im.copy()
+    im_alpha.putpixel((0, 0), (0, 0, 0, 0))
+    im_alpha.save(out, pixel_format="DXT1")
+    with Image.open(out) as reloaded:
+        assert reloaded.getpixel((0, 0)) == (0, 0, 0, 0)
+
+    # L
+    im_l = im.convert("L")
+    im_l.save(out, pixel_format="DXT1")
+    assert_image_similar_tofile(im_l.convert("RGBA"), out, 6.07)
+
+    # LA
+    im_alpha.convert("LA").save(out, pixel_format="DXT1")
+    with Image.open(out) as reloaded:
+        assert reloaded.getpixel((0, 0)) == (0, 0, 0, 0)
+
+
+def test_save_dxt3(tmp_path: Path) -> None:
+    # RGB
+    out = tmp_path / "temp.dds"
+    with Image.open(TEST_FILE_DXT3) as im:
+        im_rgb = im.convert("RGB")
+    im_rgb.save(out, pixel_format="DXT3")
+    assert_image_similar_tofile(im_rgb.convert("RGBA"), out, 1.26)
+
+    # RGBA
+    im.save(out, pixel_format="DXT3")
+    assert_image_similar_tofile(im, out, 3.81)
+
+    # L
+    im_l = im.convert("L")
+    im_l.save(out, pixel_format="DXT3")
+    assert_image_similar_tofile(im_l.convert("RGBA"), out, 5.89)
+
+    # LA
+    im_la = im.convert("LA")
+    im_la.save(out, pixel_format="DXT3")
+    assert_image_similar_tofile(im_la.convert("RGBA"), out, 8.44)
+
+
+def test_save_dxt5(tmp_path: Path) -> None:
+    # RGB
+    out = tmp_path / "temp.dds"
+    with Image.open(TEST_FILE_DXT1) as im:
+        im.convert("RGB").save(out, pixel_format="DXT5")
+    assert_image_similar_tofile(im, out, 1.84)
+
+    # RGBA
+    with Image.open(TEST_FILE_DXT5) as im_rgba:
+        im_rgba.save(out, pixel_format="DXT5")
+    assert_image_similar_tofile(im_rgba, out, 3.69)
+
+    # L
+    im_l = im.convert("L")
+    im_l.save(out, pixel_format="DXT5")
+    assert_image_similar_tofile(im_l.convert("RGBA"), out, 6.07)
+
+    # LA
+    im_la = im_rgba.convert("LA")
+    im_la.save(out, pixel_format="DXT5")
+    assert_image_similar_tofile(im_la.convert("RGBA"), out, 8.32)
+
+
+def test_save_dx10_bc5(tmp_path: Path) -> None:
+    out = tmp_path / "temp.dds"
+    with Image.open(TEST_FILE_DX10_BC5_TYPELESS) as im:
+        im.save(out, pixel_format="BC5")
+    assert_image_similar_tofile(im, out, 9.56)
+
+    im = hopper("L")
+    with pytest.raises(OSError, match="only RGB mode can be written as BC5"):
+        im.save(out, pixel_format="BC5")
+
+
+@pytest.mark.parametrize(
+    "pixel_format, mode",
+    (
+        ("DXT1", "RGBA"),
+        ("DXT3", "RGBA"),
+        ("DXT5", "RGBA"),
+        ("BC2", "RGBA"),
+        ("BC3", "RGBA"),
+        ("BC5", "RGB"),
+    ),
+)
+def test_save_large_file(tmp_path: Path, pixel_format: str, mode: str) -> None:
+    im = hopper(mode).resize((440, 440))
+    # should not error in valgrind
+    im.save(tmp_path / "img.dds", pixel_format=pixel_format)

Tests/test_file_eps.py

@@ -15,6 +15,7 @@ from .helper import (
     is_win32,
     mark_if_feature_version,
     skip_unless_feature,
+    timeout_unless_slower_valgrind,
 )
 
 HAS_GHOSTSCRIPT = EpsImagePlugin.has_ghostscript()
@@ -86,6 +87,8 @@ simple_eps_file_with_long_binary_data = (
 def test_sanity(filename: str, size: tuple[int, int], scale: int) -> None:
     expected_size = tuple(s * scale for s in size)
     with Image.open(filename) as image:
+        assert isinstance(image, EpsImagePlugin.EpsImageFile)
+
         image.load(scale=scale)
         assert image.mode == "RGB"
         assert image.size == expected_size
@@ -95,10 +98,14 @@ def test_sanity(filename: str, size: tuple[int, int], scale: int) -> None:
 @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
 def test_load() -> None:
     with Image.open(FILE1) as im:
-        assert im.load()[0, 0] == (255, 255, 255)
+        px = im.load()
+        assert px is not None
+        assert px[0, 0] == (255, 255, 255)
 
         # Test again now that it has already been loaded once
-        assert im.load()[0, 0] == (255, 255, 255)
+        px = im.load()
+        assert px is not None
+        assert px[0, 0] == (255, 255, 255)
 
 
 def test_binary() -> None:
@@ -223,6 +230,8 @@ def test_showpage() -> None:
 @pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
 def test_transparency() -> None:
     with Image.open("Tests/images/eps/reqd_showpage.eps") as plot_image:
+        assert isinstance(plot_image, EpsImagePlugin.EpsImageFile)
+
         plot_image.load(transparency=True)
         assert plot_image.mode == "RGBA"
 
@@ -235,7 +244,7 @@ def test_transparency() -> None:
 def test_file_object(tmp_path: Path) -> None:
     # issue 479
     with Image.open(FILE1) as image1:
-        with open(str(tmp_path / "temp.eps"), "wb") as fh:
+        with open(tmp_path / "temp.eps", "wb") as fh:
             image1.save(fh, "EPS")
 
 
@@ -270,7 +279,7 @@ def test_1(filename: str) -> None:
 
 def test_image_mode_not_supported(tmp_path: Path) -> None:
     im = hopper("RGBA")
-    tmpfile = str(tmp_path / "temp.eps")
+    tmpfile = tmp_path / "temp.eps"
     with pytest.raises(ValueError):
         im.save(tmpfile)
 
@@ -304,6 +313,7 @@ def test_render_scale2() -> None:
 
     # Zero bounding box
     with Image.open(FILE1) as image1_scale2:
+        assert isinstance(image1_scale2, EpsImagePlugin.EpsImageFile)
         image1_scale2.load(scale=2)
         with Image.open(FILE1_COMPARE_SCALE2) as image1_scale2_compare:
             image1_scale2_compare = image1_scale2_compare.convert("RGB")
@@ -312,6 +322,7 @@ def test_render_scale2() -> None:
 
     # Non-zero bounding box
     with Image.open(FILE2) as image2_scale2:
+        assert isinstance(image2_scale2, EpsImagePlugin.EpsImageFile)
         image2_scale2.load(scale=2)
         with Image.open(FILE2_COMPARE_SCALE2) as image2_scale2_compare:
             image2_scale2_compare = image2_scale2_compare.convert("RGB")
@@ -388,7 +399,7 @@ def test_emptyline() -> None:
     assert image.format == "EPS"
 
 
-@pytest.mark.timeout(timeout=5)
+@timeout_unless_slower_valgrind(5)
 @pytest.mark.parametrize(
     "test_file",
     ["Tests/images/eps/timeout-d675703545fee17acab56e5fec644c19979175de.eps"],

Tests/test_file_fli.py

@@ -1,12 +1,18 @@
 from __future__ import annotations
 
+import io
 import warnings
 
 import pytest
 
 from PIL import FliImagePlugin, Image, ImageFile
 
-from .helper import assert_image_equal, assert_image_equal_tofile, is_pypy
+from .helper import (
+    assert_image_equal,
+    assert_image_equal_tofile,
+    is_pypy,
+    timeout_unless_slower_valgrind,
+)
 
 # created as an export of a palette image from Gimp2.6
 # save as...-> hopper.fli, default options.
@@ -21,6 +27,8 @@ animated_test_file_with_prefix_chunk = "Tests/images/2422.flc"
 
 def test_sanity() -> None:
     with Image.open(static_test_file) as im:
+        assert isinstance(im, FliImagePlugin.FliImageFile)
+
         im.load()
         assert im.mode == "P"
         assert im.size == (128, 128)
@@ -28,6 +36,8 @@ def test_sanity() -> None:
         assert not im.is_animated
 
     with Image.open(animated_test_file) as im:
+        assert isinstance(im, FliImagePlugin.FliImageFile)
+
         assert im.mode == "P"
         assert im.size == (320, 200)
         assert im.format == "FLI"
@@ -35,36 +45,35 @@ def test_sanity() -> None:
         assert im.is_animated
 
 
-def test_prefix_chunk() -> None:
+def test_prefix_chunk(monkeypatch: pytest.MonkeyPatch) -> None:
-    ImageFile.LOAD_TRUNCATED_IMAGES = True
+    monkeypatch.setattr(ImageFile, "LOAD_TRUNCATED_IMAGES", True)
-    try:
+    with Image.open(animated_test_file_with_prefix_chunk) as im:
-        with Image.open(animated_test_file_with_prefix_chunk) as im:
+        assert im.mode == "P"
-            assert im.mode == "P"
+        assert im.size == (320, 200)
-            assert im.size == (320, 200)
+        assert im.format == "FLI"
-            assert im.format == "FLI"
+        assert im.info["duration"] == 171
-            assert im.info["duration"] == 171
+        assert im.is_animated
-            assert im.is_animated
 
-            palette = im.getpalette()
+        palette = im.getpalette()
-            assert palette[3:6] == [255, 255, 255]
+        assert palette[3:6] == [255, 255, 255]
-            assert palette[381:384] == [204, 204, 12]
+        assert palette[381:384] == [204, 204, 12]
-            assert palette[765:] == [252, 0, 0]
+        assert palette[765:] == [252, 0, 0]
-    finally:
-        ImageFile.LOAD_TRUNCATED_IMAGES = False
 
 
 @pytest.mark.skipif(is_pypy(), reason="Requires CPython")
 def test_unclosed_file() -> None:
-    def open() -> None:
+    def open_test_image() -> None:
         im = Image.open(static_test_file)
         im.load()
 
     with pytest.warns(ResourceWarning):
-        open()
+        open_test_image()
 
 
 def test_closed_file() -> None:
     with warnings.catch_warnings():
+        warnings.simplefilter("error")
+
         im = Image.open(static_test_file)
         im.load()
         im.close()
@@ -81,6 +90,8 @@ def test_seek_after_close() -> None:
 
 def test_context_manager() -> None:
     with warnings.catch_warnings():
+        warnings.simplefilter("error")
+
         with Image.open(static_test_file) as im:
             im.load()
 
@@ -110,16 +121,19 @@ def test_palette_chunk_second() -> None:
 
 def test_n_frames() -> None:
     with Image.open(static_test_file) as im:
+        assert isinstance(im, FliImagePlugin.FliImageFile)
         assert im.n_frames == 1
         assert not im.is_animated
 
     with Image.open(animated_test_file) as im:
+        assert isinstance(im, FliImagePlugin.FliImageFile)
         assert im.n_frames == 384
         assert im.is_animated
 
 
 def test_eoferror() -> None:
     with Image.open(animated_test_file) as im:
+        assert isinstance(im, FliImagePlugin.FliImageFile)
         n_frames = im.n_frames
 
         # Test seeking past the last frame
@@ -131,6 +145,15 @@ def test_eoferror() -> None:
         im.seek(n_frames - 1)
 
 
+def test_missing_frame_size() -> None:
+    with open(animated_test_file, "rb") as fp:
+        data = fp.read()
+    data = data[:6188]
+    with Image.open(io.BytesIO(data)) as im:
+        with pytest.raises(EOFError, match="missing frame size"):
+            im.seek(1)
+
+
 def test_seek_tell() -> None:
     with Image.open(animated_test_file) as im:
         layer_number = im.tell()
@@ -155,10 +178,14 @@ def test_seek_tell() -> None:
 
 def test_seek() -> None:
     with Image.open(animated_test_file) as im:
+        assert isinstance(im, FliImagePlugin.FliImageFile)
         im.seek(50)
 
         assert_image_equal_tofile(im, "Tests/images/a_fli.png")
 
+        with pytest.raises(ValueError, match="cannot seek to frame 52"):
+            im._seek(52)
+
 
 @pytest.mark.parametrize(
     "test_file",
@@ -167,7 +194,7 @@ def test_seek() -> None:
         "Tests/images/timeout-bff0a9dc7243a8e6ede2408d2ffa6a9964698b87.fli",
     ],
 )
-@pytest.mark.timeout(timeout=3)
+@timeout_unless_slower_valgrind(3)
 def test_timeouts(test_file: str) -> None:
     with open(test_file, "rb") as f:
         with Image.open(f) as im:

Tests/test_file_fpx.py

@@ -22,10 +22,11 @@ def test_sanity() -> None:
 
 def test_close() -> None:
     with Image.open("Tests/images/input_bw_one_band.fpx") as im:
-        pass
+        assert isinstance(im, FpxImagePlugin.FpxImageFile)
     assert im.ole.fp.closed
 
     im = Image.open("Tests/images/input_bw_one_band.fpx")
+    assert isinstance(im, FpxImagePlugin.FpxImageFile)
     im.close()
     assert im.ole.fp.closed
 

Tests/test_file_ftex.py

@@ -1,5 +1,8 @@
 from __future__ import annotations
 
+import io
+import struct
+
 import pytest
 
 from PIL import FtexImagePlugin, Image
@@ -23,3 +26,15 @@ def test_invalid_file() -> None:
 
     with pytest.raises(SyntaxError):
         FtexImagePlugin.FtexImageFile(invalid_file)
+
+
+def test_invalid_texture() -> None:
+    with open("Tests/images/ftex_dxt1.ftc", "rb") as fp:
+        data = fp.read()
+
+    # Change texture compression format
+    data = data[:24] + struct.pack("<i", 2) + data[28:]
+
+    with pytest.raises(ValueError, match="Invalid texture compression format: 2"):
+        with Image.open(io.BytesIO(data)):
+            pass

Tests/test_file_gbr.py

@@ -14,10 +14,14 @@ def test_gbr_file() -> None:
 
 def test_load() -> None:
     with Image.open("Tests/images/gbr.gbr") as im:
-        assert im.load()[0, 0] == (0, 0, 0, 0)
+        px = im.load()
+        assert px is not None
+        assert px[0, 0] == (0, 0, 0, 0)
 
         # Test again now that it has already been loaded once
-        assert im.load()[0, 0] == (0, 0, 0, 0)
+        px = im.load()
+        assert px is not None
+        assert px[0, 0] == (0, 0, 0, 0)
 
 
 def test_multiple_load_operations() -> None:

Tests/test_file_gd.py

@@ -4,6 +4,8 @@ import pytest
 
 from PIL import GdImageFile, UnidentifiedImageError
 
+from .helper import assert_image_similar_tofile
+
 TEST_GD_FILE = "Tests/images/hopper.gd"
 
 
@@ -11,6 +13,7 @@ def test_sanity() -> None:
     with GdImageFile.open(TEST_GD_FILE) as im:
         assert im.size == (128, 128)
         assert im.format == "GD"
+        assert_image_similar_tofile(im.convert("RGB"), "Tests/images/hopper.jpg", 14)
 
 
 def test_bad_mode() -> None: