The libcamera project has moved to C++17, therefore also update the
toolchain requirements accordingly.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
[yann.morin.1998@free.fr: s/\t/ / in hash file]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
The ControlValue structure is currently defined with a 16-bit hole
(causing unaligned access to the numElements_ field, though that's a
separate topic).
This structure has a static assertion to ensure that its size does not
change without due care, as it forms part of our ABI and is used in
Serialisation between the pipeline handlers and IPA components.
The m68k architecture is the only target which fails this assertion,
which is likely because it can pack the structure more efficiently,
producing a different binary size.
This is likely an area we will tackle before stabilising our ABI, but
until then, disable m68k builds as libcamera is not expected to be
supported on this target.
Fixes;
- http://autobuild.buildroot.net/results/9dce26e94299a2c61bba60cbc7803926e2f85e29/
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
[yann.morin.1998@free.fr, suggestions from Thomas:
- introduce BR2_PACKAGE_LIBCAMERA_ARCH_SUPPORTS
- propagate that to the comment
- add autobuilder reference
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
http://libcamera.org/
Cameras are complex devices that need heavy hardware image processing
operations. Control of the processing is based on advanced algorithms
that must run on a programmable processor. This has traditionally been
implemented in a dedicated MCU in the camera, but in embedded devices
algorithms have been moved to the main CPU to save cost. Blurring the
boundary between camera devices and Linux often left the user with no
other option than a vendor-specific closed-source solution.
To address this problem the Linux media community has very recently
started collaboration with the industry to develop a camera stack that
will be open-source-friendly while still protecting vendor core IP.
libcamera was born out of that collaboration and will offer modern
camera support to Linux-based systems, including traditional Linux
distributions, ChromeOS and Android.
The project has not made an official release as of yet, so we're
using the latest sha1 from master
We utilise C++ 11 but we mandate GCC5+ due to a bug [0] in earlier
versions which result in compile failures on our code base.
[0] Bug 54316 - [C++11] move constructor for stringstream
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54316
Documentation and Tests are disabled from the build.
With the following added to libcamera.config:
BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV=y
BR2_PACKAGE_LIBCAMERA=y
./utils/test-pkg -c libcamera.config -p libcamera
br-arm-full [1/6]: SKIPPED
br-arm-cortex-a9-glibc [2/6]: OK
br-arm-cortex-m4-full [3/6]: SKIPPED
br-x86-64-musl [4/6]: OK
br-arm-full-static [5/6]: SKIPPED
sourcery-arm [6/6]: SKIPPED
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Thomas:
- add missing Config.in comment
- remove empty newline at end of hash file
- adjust indentation of upstream URL in Config.in help text]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Giulio Benetti