When the option is defined with an option four files prefixlambda.txt,
prefixqp.txt, prefixdist.txt, and prefixbits.txt that have the corresponding
data for each ctu. This is a debug feature.
There is apparently no way to build non-inline functions accepting or
returning AVX2 params with GCC on MinGW without mangling the source code
for all platforms, because it simply refuses to align stack to more than
16 bytes where needed. Drop the AVX2 optimizations on that platform to
have a working build.
AVX2 for MinGW builds is still supported with Clang, please use it
instead because it works.
Besides just -mavx2, AVX2 support depends on a couple minor instruction
set extensions that should always exist on AVX2-capable hardware. Too
bad the different bit twiddling instructions are invoked slightly
differently between GCC and Clang, but now Clang seems to also produce
an AVX2-capable build.
- bump library version
- add help desk for --clip-neighbour
- update the default values of --clip-neighbour and --intra-bits
- update tests to more sensible
AVX2 support on a processor should always imply BMI and ABM support.
The lzcnt and tzcnt instructions have more suitable semantics in the
corner case that source word is 0, and allow us to even handle that
scenario without a branch. Apparently Visual Studio will already
include this support when building with AVX2 enabled, so only the
automake files need to be tweaked.
PowerPC target may lack or have non-standard FPU:
$ cc -dumpmachine
powerpcspe-undermydesk-freebsd
$ cc -c -maltivec -Isrc src/strategies/altivec/picture-altivec.c
src/strategies/altivec/picture-altivec.c:1: error: AltiVec and E500 instructions cannot coexist
cryptopp in version 6.1.0 added a pkg config file which is named libcryptopp.pc
so search also for this name in addition to cryptopp and libcrypto++
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Overrides the linkers used for kvazaar, libkvazaar.la and kvazaar_tests.
When crypto++ is enabled, the C++ linker is used and when it is
disabled, the C linker is used.
This removes the need to explicitly specify -lstdc++ in configure when
crypto++ is used and fixes the build with crypto++ when libstd++ is not
installed.
GCC requires -lpthread in order to link the shared library against the
pthread library. By default the AX_PTHREAD macro only outputs the
-pthread flag for GCC. Changed to force AX_PTHREAD to check -lpthread.
This encapsulates tiles or WPP rows into their own slices, making
it possible to send them as soon as they are done, instead of waiting
for the other substreams to finish and coding the substream offsets
in the slice header.
Depending on the distro, the pkg-config package name of crypto++ could
be either cryptopp or libcrypto++. This commit changes configure to
check for both instead of cryptopp only.
