cmake: Move library feature options to CXXLibraryFeatures.cmake

1 files changed, 60 insertions, 0 deletions

diff --git a/cmake/LibraryFeatures.cmake b/cmake/LibraryFeatures.cmake
new file mode 100644
index 00000000..929ed241
--- /dev/null
+++ b/cmake/LibraryFeatures.cmake
@@ -0,0 +1,60 @@
+# C library features
+#
+# Copyright © 2015 Open Microscopy Environment / University of Dundee
+# Copyright © 2021 Roger Leigh <rleigh@codelibre.net>
+# Written by Roger Leigh <rleigh@codelibre.net>
+#
+# Permission to use, copy, modify, distribute, and sell this software and
+# its documentation for any purpose is hereby granted without fee, provided
+# that (i) the above copyright notices and this permission notice appear in
+# all copies of the software and related documentation, and (ii) the names of
+# Sam Leffler and Silicon Graphics may not be used in any advertising or
+# publicity relating to the software without the specific, prior written
+# permission of Sam Leffler and Silicon Graphics.
+#
+# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+#
+# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
+# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+# OF THIS SOFTWARE.
+
+# Strip chopping
+option(strip-chopping "strip chopping (whether or not to convert single-strip uncompressed images to mutiple strips of specified size to reduce memory usage)" ON)
+set(TIFF_DEFAULT_STRIP_SIZE 8192 CACHE STRING "default size of the strip in bytes (when strip chopping is enabled)")
+
+set(STRIPCHOP_DEFAULT)
+if(strip-chopping)
+    set(STRIPCHOP_DEFAULT TRUE)
+    if(TIFF_DEFAULT_STRIP_SIZE)
+        set(STRIP_SIZE_DEFAULT "${TIFF_DEFAULT_STRIP_SIZE}")
+    endif()
+endif()
+
+# Defer loading of strip/tile offsets
+option(defer-strile-load "enable deferred strip/tile offset/size loading (also available at runtime with the 'D' flag of TIFFOpen())" OFF)
+set(DEFER_STRILE_LOAD ${defer-strile-load})
+
+# CHUNKY_STRIP_READ_SUPPORT
+option(chunky-strip-read "enable reading large strips in chunks for TIFFReadScanline() (experimental)" OFF)
+set(CHUNKY_STRIP_READ_SUPPORT ${chunky-strip-read})
+
+# SUBIFD support
+set(SUBIFD_SUPPORT 1)
+
+# Default handling of ASSOCALPHA support.
+option(extrasample-as-alpha "the RGBA interface will treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many packages produce RGBA files but don't mark the alpha properly" ON)
+if(extrasample-as-alpha)
+    set(DEFAULT_EXTRASAMPLE_AS_ALPHA 1)
+endif()
+
+# Default handling of YCbCr subsampling support.
+# See Bug 168 in Bugzilla, and JPEGFixupTestSubsampling() for details.
+option(check-ycbcr-subsampling "enable picking up YCbCr subsampling info from the JPEG data stream to support files lacking the tag" ON)
+if (check-ycbcr-subsampling)
+    set(CHECK_JPEG_YCBCR_SUBSAMPLING 1)
+endif()