Using CMakePackageConfigHelpers, we can generate a relocatable
OpenJPEGConfig.config, using the PATH_VARS feature to make
CMAKE_INSTALL_LIBDIR relative to the installed location.
This change is needed for me when cross-compiling since
CMAKE_INSTALL_FULL_LIBDIR is a path inside the sysroot rather than
an absolute path to the actual includes. Without this change poppler
ends up passing a -I flag that does not exist.
This includes fallback code for CMake 2.8, which adds a bit of complexity,
since I'm not sure if raising the minimum to 3.0 (now over 8 years old)
is acceptable.
* Add GNUInstallDirs for standard installation directories
Distributions are given standard variables for already existing hooks.
Multiarch libdirs is taken care of automagically.
Raises minimum cmake version by a little.
* Handle CMAKE_INSTALL_xxx being absolute paths for .pc file generation
In some cases the CMAKE_INSTAL_{BIN,MAN,DOC,LIB,INCLUDE}DIR variables
may turn out to be absolute paths in which case prepending ${prefix} in
the pkg-config .pc files will result in incorrect values.
For .pc file generation, figure out if these variables are absolute and
omit the prefix in the configured file when so.
See: ab25e4b7ed
thanks to @ePirat, it turns out that !EMSCRIPTEN does not evaluate to 1 on other platforms, so the the #1345 actually disabled the test for all platforms.
By default, CMake assumes that the project is using both C and C++. By
explicitly passing 'C' as argument of the project() macro, we tell CMake
that only C is used, which prevents CMake from erroring out if a C++
compiler doesn't exist.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
[Retrieved (and slightly updated by adding enable_language(CXX) if
WITH_ASTYLE is set) from:
https://git.buildroot.net/buildroot/tree/package/openjpeg/0003-CMakeLists.txt-Don-t-require-a-C-compiler.patch]
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Update the bench_dwt utility to have a -decode/-encode switch
Measured performance gains for DWT encoder on a
Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz (4 cores, hyper threaded)
Encoding time:
$ ./bin/bench_dwt -encode -num_threads 1
time for dwt_encode: total = 8.348 s, wallclock = 8.352 s
$ ./bin/bench_dwt -encode -num_threads 2
time for dwt_encode: total = 9.776 s, wallclock = 4.904 s
$ ./bin/bench_dwt -encode -num_threads 4
time for dwt_encode: total = 13.188 s, wallclock = 3.310 s
$ ./bin/bench_dwt -encode -num_threads 8
time for dwt_encode: total = 30.024 s, wallclock = 4.064 s
Scaling is probably limited by memory access patterns causing
memory access to be the bottleneck.
The slightly worse results with threads==8 than with thread==4
is due to hyperthreading being not appropriate here.
Instead of being the full tile size.
* Use a sparse array mechanism to store code-blocks and intermediate stages of
IDWT.
* IDWT, DC level shift and MCT stages are done just on that smaller array.
* Improve copy of tile component array to final image, by saving an intermediate
buffer.
* For full-tile decoding at reduced resolution, only allocate the tile buffer to
the reduced size, instead of the full-resolution size.
Use an internal version of astyle (astyle 3.0). Scripts taken from QGIS.
astyle.options from https://github.com/uclouvain/openjpeg/issues/128
scripts/prepare-commit.sh can be used locally to automatically reformat
edited files.
Travis-CI will run scripts/verify-indentation.sh to verify committed files.
posix_memalign is only declared conditionally in stdlib.h,
so add one of the possible definitions to get the declaration.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Alex Richardson
Thomas Bracht Laumann Jespersen
Even Rouault
Stefan Weil
Mehdi Sabwat
Mehdi Sabwat
Peter Korsgaard
Antonin Descampe
Antonin Descampe
Mathieu Malaterre
Julien Malik
mayeut
Rex Dieter
Rex Dieter
Mickael Savinaud