imagecodecs: update packages

.github/workflows/build-imagecodecs.yml

@@ -92,18 +92,32 @@ jobs:
           # dropped like upstream's own customize_build_macports does; wavpack is
           # packaged but too old (5.6.0, predates the multithreaded-encoding API
           # _wavpack.pyx calls); libdeflate isn't packaged either, so it's built
-          # from its own small upstream source.
+          # from its own small upstream source. Rocky 10's snappy predates the
+          # compression-level API (snappy_compress_with_level, SNAPPY_*_COMPRESSION_LEVEL)
+          # that _snappy.pyx uses from 2026.10.10, so snappy is built from source too --
+          # at 1.3.1: the API is absent from snappy 1.2.2 (the latest tag until 1.3.0)
+          # and first appears in the 1.3.0 tag's snappy-c.h.
           CIBW_BEFORE_ALL_LINUX: |
             dnf install -y \
               lcms2-devel lz4-devel libzstd-devel liblerc-devel openjpeg2-devel \
               libjpeg-turbo-devel xz-devel libpng-devel libtiff-devel libwebp-devel \
-              zlib-ng-compat-devel brotli-devel snappy-devel giflib-devel bzip2-devel
+              zlib-ng-compat-devel brotli-devel giflib-devel bzip2-devel
             curl -sSL https://github.com/ebiggers/libdeflate/archive/refs/tags/v1.26.tar.gz | tar xz -C /tmp
             cmake -S /tmp/libdeflate-1.26 -B /tmp/libdeflate-1.26/build -DCMAKE_BUILD_TYPE=Release -DLIBDEFLATE_BUILD_STATIC_LIB=OFF -DLIBDEFLATE_BUILD_GZIP=OFF
             cmake --build /tmp/libdeflate-1.26/build -j"$(nproc)"
             cmake --install /tmp/libdeflate-1.26/build
+            curl -sSLf https://github.com/google/snappy/archive/refs/tags/1.3.1.tar.gz | tar xz -C /tmp
+            cmake -S /tmp/snappy-1.3.1 -B /tmp/snappy-1.3.1/build -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=ON -DCMAKE_POSITION_INDEPENDENT_CODE=ON -DSNAPPY_BUILD_TESTS=OFF -DSNAPPY_BUILD_BENCHMARKS=OFF -DCMAKE_INSTALL_LIBDIR=lib -DCMAKE_POLICY_VERSION_MINIMUM=3.5
+            cmake --build /tmp/snappy-1.3.1/build -j"$(nproc)"
+            cmake --install /tmp/snappy-1.3.1/build
+            ldconfig
+          # CPATH puts /usr/local/include (snappy 1.3.1, libdeflate) ahead of any
+          # older system header of the same name.
           CIBW_ENVIRONMENT: >-
             IMAGECODECS_RISCV64=1
+            CPATH=/usr/local/include
+            LIBRARY_PATH=/usr/local/lib
+            LD_LIBRARY_PATH=/usr/local/lib
             PIP_EXTRA_INDEX_URL=https://pypi.riseproject.dev/simple/
           CIBW_TEST_REQUIRES: pytest tifffile
           CIBW_TEST_SOURCES: tests

docs/packages/imagecodecs.yaml

@@ -12,3 +12,4 @@ versions:
   - filename: imagecodecs-2026.8.16-cp314-cp314t-manylinux_2_35_riscv64.manylinux_2_39_riscv64.whl
     sha256: 5d775d794373da6b92d124f477dea1f7ba1f2b01eeef33db70d7a1f0502ed2f8
     requires-python: '>=3.12'
+- version: 2026.10.10

patches/imagecodecs/2026.10.10/0001-setup-add-a-riscv64-build-customization.patch

@@ -0,0 +1,75 @@
+From d1cf8a782d921f42fdb4afe4785b62d741f0179a Mon Sep 17 00:00:00 2001
+From: Ludovic Henry <git@ludovic.dev>
+Date: Sat, 12 Sep 2026 01:27:31 +0200
+Subject: [PATCH] setup: add a riscv64 (Rocky 10 / pypi.riseproject.dev) build
+ customization
+
+setup.py's customize_build dispatch relies on importing
+imagecodecs_distributor_setup, but that module is not reliably
+importable from inside cibuildwheel's isolated `python -m build`
+subprocess (build isolation does not put the project directory on
+sys.path), so the build silently falls back to customize_build_default
+-- which still tries to compile the jpegxr extension against jxrlib,
+a library Rocky 10 does not package for riscv64 at all.
+
+Add customize_build_riscv64, selected via an IMAGECODECS_RISCV64 env
+var checked directly in the dispatch chain (no import needed), so it
+does not depend on that mechanism working. It trims EXTENSIONS to the
+codecs backed by Rocky 10 appstream/crb dnf packages (plus lzf, which
+bundles its own source and needs no system library), drops jpegxr
+(like upstream's own customize_build_macports already does when
+jxrlib is unavailable) and wavpack (Rocky 10 packages WavPack 5.6.0,
+which predates the worker_threads/OPEN_THREADS_SHFT multithreaded-
+encoding API imagecodecs' _wavpack.pyx calls unconditionally), and
+clears the jpeg8 legacy sources so it builds against libjpeg-turbo 3
+(matching every other customize_build_* preset that runs on a modern
+libjpeg-turbo).
+
+Upstream-Status: Inappropriate [riscv64/pypi.riseproject.dev-specific build customization]
+---
+ setup.py | 22 +++++++++++++++++++++-
+ 1 file changed, 21 insertions(+), 1 deletion(-)
+
+diff --git a/setup.py b/setup.py
+index 3a91795..30e4e56 100644
+--- a/setup.py
++++ b/setup.py
+@@ -677,6 +677,24 @@ def customize_build_cibuildwheel(
+         extensions.pop('jpegxl', None)
+
+
++def customize_build_riscv64(
++    extensions: dict[str, Any],
++    options: dict[str, Any],
++) -> None:
++    """Customize build for Rocky 10 riscv64 (pypi.riseproject.dev)."""
++    keep = {
++        'shared', 'imcd', 'bmp', 'brotli', 'bz2', 'ccitt', 'cms', 'czi',
++        'deflate', 'gif', 'jpeg2k', 'jpeg8', 'lerc', 'ljpeg', 'lz4', 'lzf',
++        'lzma', 'pixarlog', 'png', 'snappy', 'tiff', 'webp', 'zlib', 'zstd',
++    }
++    del options['shared_utility_qualified_name']
++    extensions['jpeg2k']['include_dirs'].append('/usr/include/openjpeg-2.5')
++    extensions['jpeg8']['sources'] = []  # use libjpeg-turbo 3
++    for name in list(extensions):
++        if name not in keep:
++            extensions.pop(name)
++
++
+ def customize_build_condaforge(
+     extensions: dict[str, Any],
+     options: dict[str, Any],
+@@ -1024,7 +1042,9 @@ if 'sdist' not in sys.argv:
+         with add_to_path(HERE):
+             from imagecodecs_distributor_setup import customize_build
+     except ImportError:
+-        if os.environ.get('PYODIDE', ''):
++        if os.environ.get('IMAGECODECS_RISCV64', ''):
++            customize_build = customize_build_riscv64
++        elif os.environ.get('PYODIDE', ''):
+             customize_build = customize_build_pyodide
+         elif os.environ.get('COMPUTERNAME', '').startswith('CG-'):
+             customize_build = customize_build_cgohlke
+-- 
+2.50.1 (Apple Git-155)
+

patches/imagecodecs/2026.10.10/0002-png-drop-cICP-call-libpng-1.6.40.patch

@@ -0,0 +1,46 @@
+From 7ee627a1f393d5c9ae83bdd3def1ee1c54089961 Mon Sep 17 00:00:00 2001
+From: Ludovic Henry <git@ludovic.dev>
+Date: Fri, 11 Sep 2026 23:02:16 +0200
+Subject: [PATCH] _png: drop the png_set_cICP call, unavailable before libpng
+ 1.6.45
+
+png_set_cICP() was added to libpng in 1.6.45 (Jan 2025); Rocky 10
+riscv64's system libpng-devel is 1.6.40, which does not declare or
+export the symbol at all, so the Cython-generated call fails to
+compile (implicit-function-declaration under GCC 14) and would fail
+to link even with that warning silenced.
+
+Drop the call so png_encode compiles against libpng 1.6.40; passing
+primaries/transfer/matrix to png_encode becomes a silent no-op
+instead of writing a cICP chunk, since that colour-primaries metadata
+is not the primary use case this port targets.
+
+Upstream-Status: Inappropriate [riscv64/pypi.riseproject.dev-specific: works around an older system libpng on the manylinux_riscv64 image, not an imagecodecs bug]
+---
+ imagecodecs/_png.pyx | 10 ----------
+ 1 file changed, 10 deletions(-)
+
+diff --git a/imagecodecs/_png.pyx b/imagecodecs/_png.pyx
+index 10eb338..0082e21 100644
+--- a/imagecodecs/_png.pyx
++++ b/imagecodecs/_png.pyx
+@@ -307,16 +307,6 @@ def png_encode(
+                 PNG_FILTER_TYPE_DEFAULT
+             )
+
+-            if primaries_ >= 0 or transfer_ >= 0 or matrix_ >= 0:
+-                png_set_cICP(
+-                    png_ptr,
+-                    info_ptr,
+-                    <png_byte> (primaries_ if primaries_ >= 0 else 2),
+-                    <png_byte> (transfer_ if transfer_ >= 0 else 2),
+-                    <png_byte> (matrix_ if matrix_ >= 0 else 2),
+-                    1
+-                )
+-
+             png_write_info(png_ptr, info_ptr)
+             png_set_compression_level(png_ptr, level_)
+             png_set_compression_strategy(png_ptr, strategy_)
+-- 
+2.50.1 (Apple Git-155)
+