Removed support for 32-bit

.appveyor.yml

@@ -10,8 +10,8 @@ environment:
   TEST_OPTIONS:
   DEPLOY: YES
   matrix:
-  - PYTHON: C:/Python311
+  - PYTHON: C:/Python311-x64
-    ARCHITECTURE: x86
+    ARCHITECTURE: x64
     APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2022
   - PYTHON: C:/Python38-x64
     ARCHITECTURE: x64

.github/workflows/test-docker.yml

@@ -38,8 +38,8 @@ jobs:
           centos-7-amd64,
           centos-stream-8-amd64,
           centos-stream-9-amd64,
-          debian-11-bullseye-x86,
+          debian-11-bullseye-amd64,
-          debian-12-bookworm-x86,
+          debian-12-bookworm-amd64,
           fedora-37-amd64,
           fedora-38-amd64,
           gentoo,

.github/workflows/test-mingw.yml

@@ -21,27 +21,16 @@ concurrency:
 jobs:
   build:
     runs-on: windows-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        mingw: ["MINGW32", "MINGW64"]
-        include:
-          - mingw: "MINGW32"
-            name: "MSYS2 MinGW 32-bit"
-            package: "mingw-w64-i686"
-          - mingw: "MINGW64"
-            name: "MSYS2 MinGW 64-bit"
-            package: "mingw-w64-x86_64"
 
     defaults:
       run:
         shell: bash.exe --login -eo pipefail "{0}"
     env:
-      MSYSTEM: ${{ matrix.mingw }}
+      MSYSTEM: MINGW64
       CHERE_INVOKING: 1
 
     timeout-minutes: 30
-    name: ${{ matrix.name }}
+    name: "MSYS2 MinGW"
 
     steps:
       - name: Checkout Pillow
@@ -54,26 +43,22 @@ jobs:
       - name: Install dependencies
         run: |
           pacman -S --noconfirm \
-              ${{ matrix.package }}-freetype \
+              mingw-w64-x86_64-freetype \
-              ${{ matrix.package }}-gcc \
+              mingw-w64-x86_64-gcc \
-              ${{ matrix.package }}-ghostscript \
+              mingw-w64-x86_64-ghostscript \
-              ${{ matrix.package }}-lcms2 \
+              mingw-w64-x86_64-lcms2 \
-              ${{ matrix.package }}-libimagequant \
+              mingw-w64-x86_64-libimagequant \
-              ${{ matrix.package }}-libjpeg-turbo \
+              mingw-w64-x86_64-libjpeg-turbo \
-              ${{ matrix.package }}-libraqm \
+              mingw-w64-x86_64-libraqm \
-              ${{ matrix.package }}-libtiff \
+              mingw-w64-x86_64-libtiff \
-              ${{ matrix.package }}-libwebp \
+              mingw-w64-x86_64-libwebp \
-              ${{ matrix.package }}-openjpeg2 \
+              mingw-w64-x86_64-openjpeg2 \
-              ${{ matrix.package }}-python3-cffi \
+              mingw-w64-x86_64-python3-cffi \
-              ${{ matrix.package }}-python3-numpy \
+              mingw-w64-x86_64-python3-numpy \
-              ${{ matrix.package }}-python3-olefile \
+              mingw-w64-x86_64-python3-olefile \
-              ${{ matrix.package }}-python3-pip \
+              mingw-w64-x86_64-python3-pip \
-              ${{ matrix.package }}-python3-setuptools
+              mingw-w64-x86_64-python3-setuptools \
-
+              mingw-w64-x86_64-python-pyqt6
-          if [ ${{ matrix.package }} == "mingw-w64-x86_64" ]; then
-              pacman -S --noconfirm \
-                  ${{ matrix.package }}-python-pyqt6
-          fi
 
           python3 -m pip install pyroma pytest pytest-cov pytest-timeout
 
@@ -93,14 +78,4 @@ jobs:
         with:
           file: ./coverage.xml
           flags: GHA_Windows
-          name: ${{ matrix.name }}
+          name: "MSYS2 MinGW"
-
-  success:
-    permissions:
-      contents: none
-    needs: build
-    runs-on: ubuntu-latest
-    name: MinGW Test Successful
-    steps:
-      - name: Success
-        run: echo MinGW Test Successful

.github/workflows/test-windows.yml

@@ -24,18 +24,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12-dev"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12-dev", "pypy3.9", "pypy3.10"]
-        architecture: ["x86", "x64"]
-        include:
-          # PyPy 7.3.4+ only ships 64-bit binaries for Windows
-          - python-version: "pypy3.9"
-            architecture: "x64"
-          - python-version: "pypy3.10"
-            architecture: "x64"
 
     timeout-minutes: 30
 
-    name: Python ${{ matrix.python-version }} ${{ matrix.architecture }}
+    name: Python ${{ matrix.python-version }}
 
     steps:
     - name: Checkout Pillow
@@ -58,7 +51,6 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
-        architecture: ${{ matrix.architecture }}
         cache: pip
         cache-dependency-path: ".github/workflows/test-windows.yml"
 
@@ -206,14 +198,14 @@ jobs:
       with:
         file: ./coverage.xml
         flags: GHA_Windows
-        name: ${{ runner.os }} Python ${{ matrix.python-version }} ${{ matrix.architecture }}
+        name: ${{ runner.os }} Python ${{ matrix.python-version }}
 
     - name: Build wheel
       id: wheel
       if: "github.event_name != 'pull_request'"
       run: |
-        mkdir fribidi\${{ matrix.architecture }}
+        mkdir fribidi
-        copy winbuild\build\bin\fribidi* fribidi\${{ matrix.architecture }}
+        copy winbuild\build\bin\fribidi* fribidi
         setlocal EnableDelayedExpansion
         for %%f in (winbuild\build\license\*) do (
           set x=%%~nf

Tests/32bit_segfault_check.py

@@ -1,8 +0,0 @@
-#!/usr/bin/env python3
-
-import sys
-
-from PIL import Image
-
-if sys.maxsize < 2**32:
-    im = Image.new("L", (999999, 999999), 0)

Tests/check_large_memory.py

@@ -1,5 +1,3 @@
-import sys
-
 import pytest
 
 from PIL import Image
@@ -23,9 +21,6 @@ YDIM = 32769
 XDIM = 48000
 
 
-pytestmark = pytest.mark.skipif(sys.maxsize <= 2**32, reason="requires 64-bit system")
-
-
 def _write_png(tmp_path, xdim, ydim):
     f = str(tmp_path / "temp.png")
     im = Image.new("L", (xdim, ydim), 0)

Tests/check_large_memory_numpy.py

@@ -1,5 +1,3 @@
-import sys
-
 import pytest
 
 from PIL import Image
@@ -19,9 +17,6 @@ YDIM = 32769
 XDIM = 48000
 
 
-pytestmark = pytest.mark.skipif(sys.maxsize <= 2**32, reason="requires 64-bit system")
-
-
 def _write_png(tmp_path, xdim, ydim):
     dtype = np.uint8
     a = np.zeros((xdim, ydim), dtype=dtype)

Tests/test_core_resources.py

@@ -1,5 +1,3 @@
-import sys
-
 import pytest
 
 from PIL import Image
@@ -110,9 +108,6 @@ class TestCoreMemory:
 
         with pytest.raises(ValueError):
             Image.core.set_blocks_max(-1)
-        if sys.maxsize < 2**32:
-            with pytest.raises(ValueError):
-                Image.core.set_blocks_max(2**29)
 
     @pytest.mark.skipif(is_pypy(), reason="Images not collected")
     def test_set_blocks_max_stats(self):

Tests/test_file_webp.py

@@ -1,6 +1,5 @@
 import io
 import re
-import sys
 import warnings
 
 import pytest
@@ -145,7 +144,6 @@ class TestFileWebp:
 
         self._roundtrip(tmp_path, "P", 50.0)
 
-    @pytest.mark.skipif(sys.maxsize <= 2**32, reason="Requires 64-bit system")
     def test_write_encoding_error_message(self, tmp_path):
         temp_file = str(tmp_path / "temp.webp")
         im = Image.new("RGB", (15000, 15000))

Tests/test_image_putdata.py

@@ -38,10 +38,7 @@ def test_long_integers():
     assert put(0xFFFFFFFF) == (255, 255, 255, 255)
     assert put(-1) == (255, 255, 255, 255)
     assert put(-1) == (255, 255, 255, 255)
-    if sys.maxsize > 2**32:
+    assert put(sys.maxsize) == (255, 255, 255, 255)
-        assert put(sys.maxsize) == (255, 255, 255, 255)
-    else:
-        assert put(sys.maxsize) == (255, 255, 255, 127)
 
 
 def test_pypy_performance():

Tests/test_map.py

@@ -1,5 +1,3 @@
-import sys
-
 import pytest
 
 from PIL import Image
@@ -36,7 +34,6 @@ def test_tobytes():
     Image.MAX_IMAGE_PIXELS = max_pixels
 
 
-@pytest.mark.skipif(sys.maxsize <= 2**32, reason="Requires 64-bit system")
 def test_ysize():
     numpy = pytest.importorskip("numpy", reason="NumPy not installed")
 

docs/installation.rst

@@ -285,11 +285,8 @@ Many of Pillow's features require external libraries:
 
 .. tab:: Windows using MSYS2/MinGW
 
-    To build Pillow using MSYS2, make sure you run the **MSYS2 MinGW 32-bit** or
+    To build Pillow using MSYS2, make sure you run the **MSYS2 MinGW 64-bit** console,
-    **MSYS2 MinGW 64-bit** console, *not* **MSYS2** directly.
+    *not* **MSYS2** directly.
-
-    The following instructions target the 64-bit build, for 32-bit
-    replace all occurrences of ``mingw-w64-x86_64-`` with ``mingw-w64-i686-``.
 
     Make sure you have Python and GCC installed::
 
@@ -339,8 +336,6 @@ Many of Pillow's features require external libraries:
         pkg install -y python ndk-sysroot clang make \
             libjpeg-turbo
 
-    This has been tested within the Termux app on ChromeOS, on x86.
-
 Installing
 ^^^^^^^^^^
 
@@ -451,9 +446,9 @@ These platforms are built and tested for every change.
 +----------------------------------+----------------------------+---------------------+
 | CentOS Stream 9                  | 3.9                        | x86-64              |
 +----------------------------------+----------------------------+---------------------+
-| Debian 11 Bullseye               | 3.9                        | x86                 |
+| Debian 11 Bullseye               | 3.9                        | x86-64              |
 +----------------------------------+----------------------------+---------------------+
-| Debian 12 Bookworm               | 3.11                       | x86                 |
+| Debian 12 Bookworm               | 3.11                       | x86-64              |
 +----------------------------------+----------------------------+---------------------+
 | Fedora 37                        | 3.11                       | x86-64              |
 +----------------------------------+----------------------------+---------------------+
@@ -474,10 +469,10 @@ These platforms are built and tested for every change.
 +----------------------------------+----------------------------+---------------------+
 | Windows Server 2016              | 3.8                        | x86-64              |
 +----------------------------------+----------------------------+---------------------+
-| Windows Server 2022              | 3.8, 3.9, 3.10, 3.11,      | x86, x86-64         |
+| Windows Server 2022              | 3.8, 3.9, 3.10, 3.11,      | x86-64              |
 |                                  | 3.12, PyPy3                |                     |
 |                                  +----------------------------+---------------------+
-|                                  | 3.9 (MinGW)                | x86, x86-64         |
+|                                  | 3.9 (MinGW)                | x86-64              |
 |                                  +----------------------------+---------------------+
 |                                  | 3.8, 3.9 (Cygwin)          | x86-64              |
 +----------------------------------+----------------------------+---------------------+

setup.py

@@ -153,16 +153,13 @@ def _find_library_dirs_ldconfig():
 
     ldconfig = "ldconfig" if shutil.which("ldconfig") else "/sbin/ldconfig"
     if sys.platform.startswith("linux") or sys.platform.startswith("gnu"):
-        if struct.calcsize("l") == 4:
+        machine = os.uname()[4]
-            machine = os.uname()[4] + "-32"
-        else:
-            machine = os.uname()[4] + "-64"
         mach_map = {
-            "x86_64-64": "libc6,x86-64",
+            "x86_64": "libc6,x86-64",
-            "ppc64-64": "libc6,64bit",
+            "ppc64": "libc6,64bit",
-            "sparc64-64": "libc6,64bit",
+            "sparc64": "libc6,64bit",
-            "s390x-64": "libc6,64bit",
+            "s390x": "libc6,64bit",
-            "ia64-64": "libc6,IA-64",
+            "ia64": "libc6,IA-64",
         }
         abi_type = mach_map.get(machine, "libc6")
 
@@ -584,10 +581,7 @@ class pil_build_ext(build_ext):
                 # user libs are at $PREFIX/lib
                 _add_directory(
                     library_dirs,
-                    os.path.join(
+                    os.path.join(os.environ["ANDROID_ROOT"], "lib64"),
-                        os.environ["ANDROID_ROOT"],
-                        "lib" if struct.calcsize("l") == 4 else "lib64",
-                    ),
                 )
 
         elif sys.platform.startswith("netbsd"):

src/libImaging/ImagingUtils.h

@@ -30,7 +30,7 @@
 /* This is to work around a bug in GCC prior 4.9 in 64 bit mode.
    GCC generates code with partial dependency which is 3 times slower.
    See: https://stackoverflow.com/a/26588074/253146 */
-#if defined(__x86_64__) && defined(__SSE__) && !defined(__NO_INLINE__) && \
+#if defined(__SSE__) && !defined(__NO_INLINE__) && \
     !defined(__clang__) && defined(GCC_VERSION) && (GCC_VERSION < 40900)
 static float __attribute__((always_inline)) inline _i2f(int v) {
     float x;

winbuild/build.rst

@@ -27,7 +27,7 @@ Download and install:
 * `Ninja <https://ninja-build.org/>`_
   (optional, use ``--nmake`` if not available; bundled in Visual Studio CMake component)
 
-* x86/x64: `Netwide Assembler (NASM) <https://www.nasm.us/pub/nasm/releasebuilds/?C=M;O=D>`_
+* x64: `Netwide Assembler (NASM) <https://www.nasm.us/pub/nasm/releasebuilds/?C=M;O=D>`_
 
 Any version of Visual Studio 2017 or newer should be supported,
 including Visual Studio 2017 Community, or Build Tools for Visual Studio 2019.
@@ -42,7 +42,7 @@ Run ``build_prepare.py`` to configure the build::
 
     usage: winbuild\build_prepare.py [-h] [-v] [-d PILLOW_BUILD]
                                      [--depends PILLOW_DEPS]
-                                     [--architecture {x86,x64,ARM64}]
+                                     [--architecture {x64,ARM64}]
                                      [--python PYTHON] [--executable EXECUTABLE]
                                      [--nmake] [--no-imagequant] [--no-fribidi]
 
@@ -56,7 +56,7 @@ Run ``build_prepare.py`` to configure the build::
       --depends PILLOW_DEPS
                             directory used to store cached dependencies (default:
                             'winbuild\depends')
-      --architecture {x86,x64,ARM64}
+      --architecture {x64,ARM64}
                             build architecture (default: same as host Python)
       --python PYTHON       Python install directory (default: use host Python)
       --executable EXECUTABLE

winbuild/build_prepare.py

@@ -3,7 +3,6 @@ import os
 import platform
 import re
 import shutil
-import struct
 import subprocess
 import sys
 
@@ -98,7 +97,6 @@ def cmd_msbuild(
 SF_PROJECTS = "https://sourceforge.net/projects"
 
 architectures = {
-    "x86": {"vcvars_arch": "x86", "msbuild_arch": "Win32"},
     "x64": {"vcvars_arch": "x86_amd64", "msbuild_arch": "x64"},
     "ARM64": {"vcvars_arch": "x86_arm64", "msbuild_arch": "ARM64"},
 }
@@ -611,11 +609,7 @@ if __name__ == "__main__":
         choices=architectures,
         default=os.environ.get(
             "ARCHITECTURE",
-            (
+            "ARM64" if platform.machine() == "ARM64" else "x64",
-                "ARM64"
-                if platform.machine() == "ARM64"
-                else ("x86" if struct.calcsize("P") == 4 else "x64")
-            ),
         ),
         help="build architecture (default: same as host Python)",
     )