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Diffstat (limited to 'tiff/cmake/JPEGCodec.cmake')
| -rw-r--r-- | tiff/cmake/JPEGCodec.cmake | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/tiff/cmake/JPEGCodec.cmake b/tiff/cmake/JPEGCodec.cmake new file mode 100644 index 00000000..5b295851 --- /dev/null +++ b/tiff/cmake/JPEGCodec.cmake @@ -0,0 +1,56 @@ +# Checks for JPEG codec support +# +# 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. + + +# JPEG +set(JPEG_SUPPORT FALSE) +find_package(JPEG) +option(jpeg "use libjpeg (required for JPEG compression)" ${JPEG_FOUND}) +if (jpeg AND JPEG_FOUND) + set(JPEG_SUPPORT TRUE) +endif() + +# Old-jpeg +set(OJPEG_SUPPORT FALSE) +option(old-jpeg "support for Old JPEG compression (read-only)" ${JPEG_SUPPORT}) +if (old-jpeg AND JPEG_SUPPORT) + set(OJPEG_SUPPORT TRUE) +endif() + +# 8/12-bit jpeg mode +set(JPEG12_INCLUDE_DIR JPEG12_INCLUDE_DIR-NOTFOUND CACHE PATH "Include directory for 12-bit libjpeg") +set(JPEG12_LIBRARY JPEG12_LIBRARY-NOTFOUND CACHE FILEPATH "12-bit libjpeg library") +set(JPEG_DUAL_MODE_8_12 FALSE) +if (JPEG12_INCLUDE_DIR AND JPEG12_LIBRARY) + set(JPEG12_LIBRARIES ${JPEG12_LIBRARY}) + set(JPEG12_FOUND TRUE) +else() + set(JPEG12_FOUND FALSE) +endif() +option(jpeg12 "enable libjpeg 8/12-bit dual mode (requires separate 12-bit libjpeg build)" ${JPEG12_FOUND}) +if (jpeg12 AND JPEG12_FOUND) + set(JPEG_DUAL_MODE_8_12 TRUE) + set(LIBJPEG_12_PATH "${JPEG12_INCLUDE_DIR}/jpeglib.h") +endif() |