Add support for building Windows on ARM64 (WOA) wheels (#608)

Author: Harishmcw

.github/workflows/sounddevice-data.yml

@@ -14,12 +14,14 @@ jobs:
             arch: 'x64'
           - os: windows-latest
             arch: 'x86'
+          - os: windows-11-arm
+            arch: 'arm64'
     runs-on: ${{ matrix.os }}
     steps:
       - name: Set up Python
         uses: actions/setup-python@v6
         with:
-          python-version: "3.10"
+          python-version: "3.13"
           architecture: ${{ matrix.arch }}
       - name: Double-check Python version
         run: |

_sounddevice_data/portaudio-binaries

@@ -19,6 +19,8 @@ make_wheel Windows 32bit
 
 make_wheel Windows 64bit
 
+make_wheel Windows arm64
+
 # This makes sure that the libraries are not copied to the final sdist:
 rm -rf sounddevice.egg-info/
 

make_dist.sh

@@ -16,8 +16,9 @@
 
 # environment variables for cross-platform package creation
 system = os.environ.get('PYTHON_SOUNDDEVICE_PLATFORM', platform.system())
+machine = platform.machine().lower()
 architecture0 = os.environ.get('PYTHON_SOUNDDEVICE_ARCHITECTURE',
-                               platform.architecture()[0])
+    'arm64' if machine in ['arm64', 'aarch64'] else platform.architecture()[0])
 
 if system == 'Darwin':
     libname = 'libportaudio.dylib'
@@ -52,7 +53,9 @@ def get_tag(self):
             if system == 'Darwin':
                 oses = MACOSX_VERSIONS
             elif system == 'Windows':
-                if architecture0 == '32bit':
+                if architecture0 == 'arm64':
+                    oses = 'win_arm64'
+                elif architecture0 == '32bit':
                     oses = 'win32'
                 else:
                     oses = 'win_amd64'

setup.py

@@ -74,10 +74,14 @@
     if _platform.system() == 'Darwin':
         _libname = 'libportaudio.dylib'
     elif _platform.system() == 'Windows':
+        if _platform.machine().lower() in ('arm64', 'aarch64'):
+            _platform_suffix = 'arm64'
+        else:
+            _platform_suffix = _platform.architecture()[0]
         if 'SD_ENABLE_ASIO' in _os.environ:
-            _libname = 'libportaudio' + _platform.architecture()[0] + '-asio.dll'
+            _libname = 'libportaudio' + _platform_suffix + '-asio.dll'
         else:
-            _libname = 'libportaudio' + _platform.architecture()[0] + '.dll'
+            _libname = 'libportaudio' + _platform_suffix + '.dll'
     else:
         raise
     import _sounddevice_data