Accepting request 878211 from home:bnavigator:branches:devel:languages:python

- Update to version 2021.2.26
  Pass 4915 tests. Support X2 and X4 floating point predictors
  (found in DNG).
- enable additional codecs through imagecodecs_distributor_setup.py
- Add imagecodecs-pr15-test_jpegls.patch
  gh#cgohlke/imagecodecs#15
- disable builds for big-endian platforms as per upstream README

OBS-URL: https://build.opensuse.org/request/show/878211
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-imagecodecs?expand=0&rev=14

imagecodecs_distributor_setup.py

@@ -0,0 +1,35 @@
+# openSUSE extension setup to build python-imagecodecs
+
+import os
+import subprocess
+import sys
+
+def customize_build(EXTENSIONS, OPTIONS):
+
+    includedir = os.getenv("INCDIR",'') + '/'
+
+    del EXTENSIONS['jpeg12']  # jpeg12 requires custom build
+    del EXTENSIONS['lerc']    # LERC library not available
+    del EXTENSIONS['lz4f']    # requires static linking
+    del EXTENSIONS['jpegxl']  # Brunsli library not available
+    
+    EXTENSIONS['avif']['libraries'] = [
+        'avif',
+        'aom',
+        'dav1d',
+        'rav1e',
+    ]
+
+    # no zfp on 32-bit platforms
+    if sys.maxsize < 2**63 - 1:
+        del EXTENSIONS['zfp']
+    
+    
+    openjpeg_inc = subprocess.check_output(
+        ['pkgconf', '--variable=includedir', 'libopenjp2'],
+        text=True,
+        ).strip()
+    EXTENSIONS['jpeg2k']['include_dirs'].append(openjpeg_inc)
+
+    EXTENSIONS['jpegxr']['include_dirs'].append(includedir +  'jxrlib')
+    EXTENSIONS['zopfli']['include_dirs'].append(includedir +  'zopfli')