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The pkg-config file for the main libcamera.so is generated
at the top level meson.build.
Move this to the actual core libcamera build structure to be
consistent and keep it next to the library construction.
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Android provides neither secure_getenv() nor issetugid(). Enable
compilation on that platform by using a plain getenv(), as that seems to
be the best we can do.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Boolean options in the summary are printed as 'True' or 'False' by
default. Enable the bool_yn option, which prints them as 'YES' or 'NO',
in green and red respectively. This makes the summary more readable.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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On gcc versions older than 9, the file system library, used by the
Android camera HAL configuration file parser, is implemented in a
separate static library. Furthermore, on gcc 7, it's provided in the
std::experimental namespace. This breaks compilation of the HAL on gcc
7, and linking on gcc 8.
Fix the compilation issue by conditionally including
<experimental/filesystem> and creating a namespace alias in std, and the
link issue by linking to libstdc++fs on gcc versions older than 9.
The inclusion of <experimental/filesystem> is a bit of a hack, and when
we'll start using the file system library in another compilation unit,
we should then move all this to an internal helper to abstract the
compiler version.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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There can be multiple IPAs per pipeline-handler or platform.
They can live in-tree or externally linked. It is up to the vendor
whether to use in-tree IPA for a platform or provide it externally.
In the case of IPAs being external, building in-tree IPAs might be
futile hence, provide a clear and explicit mechanism to choose whether
to build the in-tree IPA for the platform or not.
By default, all in-tree IPAs are built when a matching Pipeline handler
is also enabled.
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Since meson v0.49.0, join_paths() is equivalent to '/' hence,
drop and replace it with '/' short-hand in meson files.
This commit does not introduce any functional changes.
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Add a compliance tool to ease testing of cameras. In contrast to the
unit-tests under test/ that aims to test the internal components of
libcamera the compliance tool aims to test application use-cases and to
some extent the public API.
This change adds the boilerplate code of a simple framework for the
creation of tests. The tests aim both to demonstrate the tool and to
catch real problems. The tests added are:
- Test that if one queues exactly N requests to a camera exactly N
requests are eventually completed.
- Test that a configured camera can be started and stopped multiple
times in an attempt to exercise cleanup code paths otherwise not
often tested with 'cam' for example.
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
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Add the application and adaptation layers being built to the meson
summary. The summary now prints
libcamera 0.0.0
Configuration
Enabled pipelines: ipu3
raspberrypi
rkisp1
simple
uvcvideo
vimc
Android support: True
GStreamer support: True
V4L2 emulation support: True
cam application: True
qcam application: True
Unit tests: True
Subprojects
libyuv: YES
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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The addition of the new IPA IPC mechanism compiles pipeline-specific
headers to define the interface between the pipeline and the IPA.
This was optimised in 08ce394465b5 ("meson: ipa, proxy: Only build
proxies for enabled pipelines") to only build for enabled pipelines,
however the tests directly use the VIMC pipeline handler, and require
it to be built.
Create a local variable to store the requested pipelines from the user
configuration and extend the enabled pipelines to ensure that VIMC is
always enabled if the tests are also enabled
Fixes: 08ce394465b5 ("meson: ipa, proxy: Only build proxies for enabled pipelines")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Sebastian Fricke<sebastian.fricke@posteo.net>
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Android HAL adaptation layer may need image processing, for
example, scaling and format conversion. Libyuv is a general image
processing. This adds libyuv to subprojects, so that it is forked
locally and can be used with Android HAL implementation code.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Now that Debian backports have been updated to meson v0.56, all major
distributions provide meson >= v0.53 in their latest LTS version. We can
replace the manual message()-based configuration summary with the
summary() function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Utilise the subdir_done() functionality as is used with other optional
components to simplify the top level meson file.
Suggested-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Implement tracing infrastructure in libcamera. It takes .tp files, as
required by lttng, and generates a tracepoint header and C file, as lttng
requires. meson is updated accordingly to get it to compile with the
rest of libcamera. Update the documentation accordingly.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Shadowing variables can lead to unexpected bugs where a code path
utilises a variable that may not have been intended by the developer,
leading to hard to find bugs.
Enable warnings for shadowed variables as defined at:
https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wshadow
As an effect of utilising -Werror, this will cause variable or type
shadowing to become a build-time error.
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The option, -Wextra-semi, helps developers to find unnecessary
semicolons. This option is available with clang.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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I get the warnings related to psabi with:
gcc 9.3.0 "arm-buildroot-linux-gnueabihf-g++.br_real (Buildroot 2020.08-24-gc5c5f1fa46) 9.3.0"
Remove the check for gcc-9, so that -Wno-psabi is used on all gcc
versions over 7.1.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@iki.fi>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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With this change, meson will complain specifically about missing
python3 and missing python3-yaml. As specified by meson
documentation: https://mesonbuild.com/Python-module.html,
this change requires meson v0.51.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Version 0.51 allows, among others, checking for python modules, which is
a required feature.
It is also now easily accessible: it is in stable distros such as Debian
testing, or in pip:
https://tracker.debian.org/pkg/meson
https://pypi.org/project/meson/
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ricardo@ribalda.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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This way if the user enables the documentation and the dependencies are
missing the configure fails.
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ricardo Ribalda <ricardo@ribalda.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The utils directory can contain helpers and support tools which are used
throughout other components of the build.
Ensure that the utils subdir is parsed first allowing helpers to be
defined there.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The viewfinderGL accelerates the format conversion by using OpenGL ES
shader.
The minimum Qt version is bumped to v5.4, as QOpenGLWidget wasn't
available before that.
Signed-off-by: Show Liu <show.liu@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Report the enabled pipelines when configuring the meson build hierarchy.
This helps clarify what pipelines are used when building, and is useful
when looking back through build-traces to see what was actually
configured.
This can be expanded upon to report other options, and ideally will be
replaced by mesons summary() functionality when it is available.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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We build libcamera with -Wno-unused-parameter and this doesn't cause
much issue internally. However, it prevents catching unused parameters
in inline functions defined in public headers. This can lead to
compilation warnings for applications compiled without
-Wno-unused-parameter.
To catch those issues, remove -Wno-unused-parameter and fix all the
related warnings with [[maybe_unused]].
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Due to popular request, move from C++14 to C++17. This will allow
dropping some custom constructs (such as a custom utils::clamp),
benefiting from new language features, and dropping gcc 5 and 6 from the
compilation tests.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Add kernel version detection to warn user
that only >= 5.0.0 V4L API are supported in
libcamera.
Signed-off-by: Stéphane Cerveau <scerveau@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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In an attempt to clarify the license terms of all files in the libcamera
project, the build system files deserve particular attention. While they
describe how the binaries are created, they are not themselves
transformed into any part of binary distributions of the software, and
thus don't influence the copyright on the binary packages. They are
however subject to copyright, and thus influence the distribution terms
of the source packages.
Most of the meson.build files would not meet the threshold of
originality criteria required for copyright protection. Some of the more
complex meson.build files may be eligible for copyright protection. To
avoid any ambiguity and uncertainty, state our intent to not assert
copyrights on the build system files by putting them in the public
domain with the CC0-1.0 license.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Naushir Patuck <naush@raspberrypi.com>
Acked-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Acked-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Acked-by: Paul Elder <paul.elder@ideasonboard.com>
Acked-by: Show Liu <show.liu@linaro.org>
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Should be $includedir/libcamera, as we install into a subdirectory name
'libcamera'. This is fixed by passing the 'subdirs' argument to the pkgconfig
generator.
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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gcc 7.1 introduced processor-specific ABI breakages related to parameter
passing on ARM platforms. This generates a large number of messages
during compilation with gcc >=7.1 until gcc 9. Silence them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Similarly to libcameraBuildPath(), there's a need to locate resources
within the source tree when running libcamera without installing it.
Support this use case with a new utils::libcameraSourcePath() function.
The implementation uses a symlink from the build root to the source root
in order to avoid hardcoding the path to the source root in the
libcamera.so binary.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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We use array designators for array initialization, which is a C99
extension. clang-10 warns about it, causing a build failure.
As this is a useful extension, silence the warning. This needs to be
done only if the compiler supports the -Wno-c99-designator argument,
otherwise a -Wunknown-warning-option will be generated.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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This is needed to use option type 'feature'. This is a tri-state
(auto/enabled/disabled) which comes with utility to enable them all, or
disabled them all to avoid any dynamic selection happening. It can also
be used as value to any "required" field.
This will be used in GStreamer support. If you don't have a recent enough
meson in your distribution, you can always install or upgrade your version
using pip3.
pip3 install --user meson
pip3 install --user --upgrade meson
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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C++14 is a minor release that doesn't introduce major new concepts or
paradigms compared to C++11, but brings two useful changes for us:
- std::make_unique allows dropping our custom implementation in utils.
- Functions returning constexpr are not assumed to be const anymore,
which is needed to create a standard-conformant span implementation.
All the g++ and clang++ versions we support and test (g++-5 onwards and
clang++6 onwards) support C++14. However, due to a defect in the
original C++14 specification, solved in N4387 ([1]), compilation would
fail on g++-5 due to the use of std::map::emplace() with a non-copyable
value type. It turns out we can easily fix it by switching to the
explicit piecewise emplace() overload.
There is thus really nothing holding back the switch. Let's do it, and
update the coding style accordingly.
[1] http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4387
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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When a fatal error occurs the program aborts, and all the logger
provides is the location of the line that caused the error. Extend this
with a full backtrace to help debugging.
The backtrace is generated using the backtrace() call, a GNU extension
to the C library. It is available in glibc and uClibc but not in musl.
Test for availability of the function to condition compilation of the
backtrace printing. Implementing backtrace support with musl is an
exercise left to the reader if desired.
The LogOutput class is extended to support writing string messages
directly to the output. Strings written directly will be considered as
LogDebug messages when written to the Syslog.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Commit 965c5bf7fbf5 ("meson: Define _FORTIFY_SOURCE for optimised
builds") tried to define _FORTIFY_SOURCE for optimised builds with
clang, but updated the common_arguments after it was used. This resulted
in the _FORTIFY_SOURCE option not being applied. Fix it.
Fixes: 965c5bf7fbf5 ("meson: Define _FORTIFY_SOURCE for optimised builds")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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The 'tests' option enables compilation of tests. On Gentoo and Chrome
OS, the corresponding package USE flag is named 'test'. Rename the
option to 'test' to bring it in line.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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_FORTIFY_SOURCE adds useful checks during compilation. The option is
enabled by default by gcc on all non-optimised builds (as it requires
-O1 or higher). Enable it explicitly for clang.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Commit b817bcec6b53 ("libcamera: Auto generate version information")
causes the build to fail in the Chromium OS build environment, because
git update-index tries to take a lock (ie. write) in the git repo that
is outside of the build directory.
The solution is to simply skip git update-index if we are building in
the Chromium OS build environment, and this decision is made if the
build directory is not a subdirectory of the source directory.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Commit b817bcec6b53 ("libcamera: Auto generate version information")
generates version information in order to automatically include it
various locations (Sphinx and Doxygen documentation, libcamera::version
variable available at runtime, and version.h available at compile time).
Unfortunately this causes lots of unnecessary rebuilds when modifying
the git tree state, which hinders development.
The problem is caused by the generated version.h being listed as a
dependency for the whole libcamera. This is required as meson (to the
best of my knowledge) doesn't provide a way to explicitly specify the
dependency of a single object file (camera_manager.o in this case, as
camera_manager.cpp is the only consumer of the generated version string)
on the custom target used to generate version.h. The dependency can't be
automatically detected at build time, like dependencies on normal
headers that are generated by parsing the source, because the version.h
header may not exist yet. The build could then fail in a racy way.
This change attempts at solving the issue by generating a version.cpp
instead of a version.h to set the git-based version. This minimises the
number of files that need to be rebuild when then git tree state
changes, while retaining the main purpose of the original automatic
version generation, the ability to access the git-based version string
at runtime. We however lose the ability to access git-based version
information at build time in an application building against libcamera,
but there is no expected use case for this.
The version string is moved from the libcamera namespace to the
CameraManager class in order to avoid including version.h inside
libcamera (in version.cpp and in camera_manager.cpp), which would create
dependencies causing more rebuild steps, as described above.
On the other hand, major, minor and patch level version numbers are
useful at build time. This commit changes the generation of version.h in
order to add three macros named LIBCAMERA_VERSION_MAJOR,
LIBCAMERA_VERSION_MINOR and LIBCAMERA_VERSION_PATCH for this purpose.
version.h is not included by any other libcamera header or source file,
and thus doesn't force a rebuild of the library.
The Sphinx and Doxygen documentation keep their git-based version
information, which is set during the configuration of the build and then
doesn't track git commits. We may want to investigate how to improve
this, but given that git-based version for the documentation has very
few use cases outside of tagging nightly builds, this isn't considered
an issue at the moment.
The documentation install directory now uses the base version string, in
order to avoid increasing the number of documentation directories
needlessly. This shouldn't cause any issue as the API should not change
without a change to the version number.
The version number generation and handling code now also standardises
the version variables to not start with a 'v' prefix in meson, in order
to simplify their handling. The prefix is added when generating the
relevant files.
Note that we go back to specifying the fallback version in the main
meson.build, in the call to the project() function. For the time being I
believe this should be a good compromise to avoid unnecessary
recompilation, and moving the fallback version to a different file for
tarball releases can be built on top of this.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Generate a version string, and provide a global string object which
allows applications to interrogate the current libcamera version
information.
The version header is automatically updated by meson on each build.
The string roughly follows the semver [0] conventions of
major.minor.patch-label as a value.
[0] https://semver.org/
A script (utils/gen-version.sh) is provided which is modelled upon the
processing from autoconf's git-version-gen. The gen-version.sh script
will look for tags in the form vX.Y as starting points for the version
string. While the repository does not have any matching tags, v0.0 will
be assumed, resulting in versions with both major and minor being set to
'0', and the patch count resulting from the number of patches in the
history to that point.
Finally, a uniquely identifying shortened hash is provided from git:
v0.0.509+0ec0edf7
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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libc++ is used by Chrome OS, and likely as well by other environments
based on clang. Using it by default if available when compiling with
clang will help extending the compile-testing coverage. The drawback is
that issues specific to clang with libstdc++ will not be caught as
easily, but based on the experience with clang so far, code compiling
correctly with gcc/libstdc++ has failed with clang due to either
clang-specific or libc++-specific behaviour, never due only to the
combination of clang with libstdc++.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Consistently go for 4 spaces indentation, and always put a space between
the colon in argument lists, as per the examples from the meson
documentation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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libcamera depends on libudev for device enumeration. It is however
useful to allow building documentation without requiring the dependency
to be installed. Make the libudev dependency optional and compile the
udev-based device enumerator out when libudev is not present.
Note that while libcamera will compile without libudev, it will not be
able to enumerate devices. A sysfs-based device enumerator is planned as
a fallback but not implemented yet.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Not all libc make secure_getenv() available, this could lead to build
failure on certain build systems.
Check if secure_getenv() is available and emit #define
HAVE_SECURE_GETENV to config.h Include config.h to every c/c++ file
during building by adding `-include config.h` to project arguments for
both c and c++.
Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[Kieran: Drop unnessecary meson message
Update commit message]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Re-order the optional components to make them alphabetical, and fix up
the indentation to use two spaces as required by meson. A comment is
added to highlight that these optional components are enabled by
default.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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It can be desirable to disable the compilation and processing of both
the test suite and documentation for use cases such as packaging to an
embedded target.
Provide a new meson_options.txt file to allow disabling either or both
of the tests and documentation components of libcamera.
These options can be provided at the initial configuration time, for
example:
meson build -Dtests=false -Ddocumentation=false
or by reconfiguring an existing build tree:
cd build
meson configure -Ddocumentation=false
meson configure -Dtests=false
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Remove our custom declarations for cpp_std=c++11, -Wall, -Wextra and
-Werror, instead prefering to use the built-in default_option parameters
from meson.
Our custom compiler flags (such as -Wno-unused-parameter) are
maintained.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The project description is really the project name. The extraneosly long
string gets printed at the test runner prefixed to the suite. As such it
should really be the shortened simple project name.
Remove the 'description' from the project naming field.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Building the current master branch with g++ 5.4.0-6 fails with:
./src/libcamera/include/log.h:25:34:
error: defaulted and deleted functions only available with -std=c++11 \
or -std=gnu++11 [-Werror]
LogMessage(const LogMessage&) = delete;
Fix this by adding the 'std=c++11' compiler argument for to the list of
cpp build flags.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Extend the documentation build system to automatically generate
documentation from source code using Doxygen. This is currently separate
from the sphinx documentation, and should be integrated using the
breathe (and possibly exhale) extensions.
As the Documentation/meson.build file needs to reference the variables
holding the source files, move the Documentation directory to the end of
the subdirs() in the top-level meson.build.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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In order to match the directory structure of traditional projects,
rename the top-level lib/ directory to src/libcamera/. Other libraries
developed as part of the project will later find a home in src/.
Split the libcamera header files in three categories: public headers
describing the public API in include/libcamera/, internal headers
describing the internal API in src/libcamera/include/, and private
headers local to one or a small number of compilation units along the
corresponding .cpp files. As no internal header exists yet the
src/libcamera/include/ directory is created empty as the build system
would fail otherwise.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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