The GlobalConfiguration is explicitly passed around through constructors
of various objects that need access to the configuration. This ad-hoc
solution works for the specific use cases it was meant to support, but
isn't very generic. We have a top-level object in libcamera, the
CameraManager, that also needs to be accessed from various locations and
is passed to object constructors. Standardize on passing the
CameraManager everywhere, and access the global configuration through
it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
yaml-parser.cpp mixes unqualified and qualified identifier in the std
namespace. Standardize on qualified identifiers, and drop the
"using namespace std" statement.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Most of the tests in the YamlParser unit test cover the ValueNode class.
They are now implemented in the ValueNode unit test. Drop them, and only
keep the tests that related to YAML parsing.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Add a unit test for the ValueNode class. The tests focus on the class
itself, without considering that is currently only used when parsing
YAML files. This duplicates some of the tests of the YamlParser class,
which will be dropped from the corresponding unit test in a subsequent
change.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
The YamlObject class is now a generic data container to model trees of
values. Rename it to ValueNode and expand the class documentation.
While at it, drop the unneeded libcamera:: namespace prefix when using
the ValueNode class.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
The YamlObject::Accessor structure is designed to extend the YamlObject
class with new getter and setter types without modifying
yaml_parser.cpp. This feature is used for various libcamera classes,
while standard C++ types are handled in yaml_parser.cpp.
The Size class is an outlier: it is a libcamera class, but is handled in
yaml_parser.cpp. Move it to geometry.cpp. Drop the std::vector<Size>
specialization as it is currently unused.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
The YamlObject class has two member function templates to get values:
the get() function gets a scalar value, while the getList() function
gets a vector of scalar values.
As get() is a function template, we can provide specializations for
vector types. This makes the code more systematic, and therefore more
readable. Replace all getList() occurrences, and drop the getList()
function.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
The ipa_interface unit test uses a FIFO to communicate with the vimc IPA
module. FIFOs are named pipes, created in the file system. The path to
the FIFO is hardcoded so that both the unit test and IPA module know
where to locate the file.
If the ipa_interface crashes for any reason, the FIFO will not be
removed, and subsequent usage of the vimc IPA module will hang when
trying to write to the FIFO in the IPA module.
Fix this by replacing the FIFO with a pipe. Pipes are unidirectional
data channels that are represented by a pair of file descriptors,
without any presence in the file system. The write end of the pipe is
passed to the vimc IPA module init() function, and then used the same
way as the FIFO.
While at it, use a std::unique_ptr to manage the notifier in the unit
test instead of manually allocating and deleting the object.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
The goal of ipa_interface is to unit test the IPA interface. It
currently creates the IPA proxy through the higher level PipelineHandler
class. Use the IPAManager::createIPA() function instead to keep the
focus on the components that were meant to be tested.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
IPA proxies are created with a call to IPAManager::createIPA(), which is
a static member function. This requires a complicated dance in the
createIPA() function to retrieve the IPAManager instance through the
camera manager, itself retrieved from the pipeline handler. Simplify the
code by turning IPAManager::createIPA() into a non-static member
function, and providing a wrapper in the PipelineHandler class to keep
instantiation of IPA proxies easy in pipeline handlers.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
There is nothing inherently non-constexpr in the `Quantized` type. Whether
it can work in `constexpr` contexts depends on the traits type. There is
no reason to explicitly disallow `constexpr` operation. So mark all eligible
methods `constexpr`.
In addition, add some `static_assert()`s to the "quantized" test to check
constexpr operation.
For example, `FixedPointQTraits<...>::toFloat()` is `constexpr`, so this
enables the construction of `{U,}Q<...>` from the underlying quantized
value in `constexpr` contexts, which can be useful for example for
storing default values in e.g. `static constexpr` variables.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
'const auto' and 'auto const' are interchangeable in C++. There are 446
occurrences of the former in the code base, and 67 occurrences of the
latter. Standardize on the winner.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Now that the fixed point conversions are equally covered by the new Q types,
the legacy tests for fixedToFloatingPoint and floatingToFixedPoint are
redundant.
Remove them, and replace the existing test cases with equivalant tests
using the new Q4.7 type directly to maintain identical test coverage.
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
The fixedToFloatingPoint does not support unsigned Q types, and
incorrectly sign-extends all values which have the top most bit set in
the quantized values.
Fix this by ensuring that only signed types perform sign extension, and
simplify the calculation for unsigned types.
Convert the storage of the test cases to signed types to correctly
represent their intended purpose, to prevent test failures.
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
`O_TMPFILE` requires file system support, which may not be available in
certain environments, usually containerized ones. So do not use it.
A new function is added for tests to be able to create unnamed temporary
files using `libcamera::MemFd` as the implementation.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
The quantization of the interpolation key was only used by the LSC
algorithm. There it lead to difficult to read code was removed. As there
is no remaining user of it, drop it from the Interpolator class.
While at it, cleanup the includes.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Add a transpose() function to size that applies the
Transformation::Transpose operation in the size. This is useful when
handling orientation adjustments.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Adapt the PipelineHandler::acquireMediaDevice() support function to
return a shared pointer instead of the underlying raw pointer.
Propagate this update to all pipeline handlers that use the MediaDevice
and store a std::shared_ptr<MediaDevice> accordingly.
This is required to support media devices that are potentially shared
among multiple pipeline handlers, like a dewarper implemented as v4l2
m2m device.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Isaac Scott <isaac.scott@ideasonboard.com>
The libcamera hex string adaptor specifies and casts each type
specifically to map the size of each type.
This needlessly repeats itself for each type and further more has a bug
with signed integer extension which causes values such as 0x80 to be
printed as 0xffffffffffffff80 instead.
Remove the template specialisations for each type, and unify with a
single templated constructor of the struct hex trait.
Suggested-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
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>
When retrieving the value from a `ControlValue` usually one of two
things happen: a small, trivially copyable object is returned by
value; or a view into the internal buffer is provided. This is true
for everything except strings, which are returned in `std::string`,
incurring the overhead of string construction.
To guarantee no potentially "expensive" copies, use `std::string_view`
pointing to the internal buffer to return the value. This is similar
to how other array-like types are returned with a `Span<>`.
This is an API break, but its scope is limited to just `properties::Model`.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=256
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
In the near future we will add a SyncAdjustment control for adjusting
the frame duration via the sync algorithm. This control needs to be able
to take on a negative value, since the frame duration can be shortened
in addition to being extended. While the control is an int, it would be
convenient to be able to clamp it to frame duration limits, which are
usually handled as utils::Duration values internally. To allow this
using utils::Duration, add a unary negation operation to
utils::Duration. Also add a test for the operator.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Pass Request::ReuseBuffers flag to request->reuse()
where the same buffers are added to the request, as the flag
exists precisely for such use cases.
This commit also drops invalid comments about creating new requests,
since requests were already being reused for `buffer_import`
and `capture` tests since commit c753223ad6
("libcamera, android, cam, gstreamer, qcam, v4l2: Reuse Request").
Signed-off-by: Umang Jain <uajain@igalia.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
The existing meson.build file installs the bindings to a manually
constructed directory that is not included in the Python path in most
distributions. For instance, on a Debian 12 system, the modules is
intalled in /usr/lib/x86_64-linux-gnu/python3.11/site-packages/, while
the Python interpreter looks for site packages in
/usr/lib/python3/dist-packages/.
It also always builds the bindings using the system Python, as it
searches for the Python library using the standard dependency()
function. This prevents build the Python bindings for a different
interpreter version without changing the system default interpreter.
Modify the build process to use the meson python module to build the
Python bindings targets, so it installs them to the correct directories
for Python. This also allows specifying a different target Python
interpreter through the '[binaries]' section of a meson native file.
The behaviour is not changed for cross-compilation, as the meson python
module has known issues in that case.
Signed-off-by: William Vinnicombe <william.vinnicombe@raspberrypi.com>
Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
This reverts commit 10cdc914da.
The constructors introduced by that commit are not used anywhere,
and they do not match the existing practice for boolean controls.
Specifically, every single boolean control is described by calling
the `ControlInfo(ControlValue, ControlValue, ControlValue)`
constructor. Crucially, that constructor does not set `values_`,
while the two removed constructors do. And whether or not `values_`
has any elements is currently used as an implicit sign to decide
whether or not the control is "enum-like", and those are assumed
to have type `int32_t`.
For example, any boolean control described using any of the two
removed constructors would cause an assertion in failure in
`CameraSession::listControls()` when calling `value.get<int32_t>()`.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
The `ProcessManager` is a singleton class to handle `SIGCHLD` signals
and report the exit status to the particular `Process` instance.
However, having a singleton in a library is not favourable and it is
even less favourable if it installs a signal handler.
Using pidfd it is possible to avoid the need for the signal handler;
and the `Process` objects can watch their pidfd themselves, eliminating
the need for the `ProcessManager` class altogether.
`P_PIDFD` for `waitid()` was introduced in Linux 5.4, so this change
raises the minimum supported kernel version. `clone3()`, `CLONE_PIDFD`,
`pidfd_send_signal()` were all introduced earlier.
Furthermore, the call to the `unshare()` system call can be removed
as those options can be passed to `clone3()` directly.
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Header comment blocks used to contain the file name. Considered as
useless information, the names have been removed, with the last ones
supposed to be dropped in commit d3bf27180e ("libcamera: Drop
remaining file names from header comment blocks"). A few have however
been forgotten, and more crept back since. Remove them.
While at it, fix one typo in a header comment block by replacing
'MaliC55 with Mali-C55', and add a missing blank line in
src/ipa/rpi/pisp/pisp.cpp.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Instead of copying, just move the returned value when the call is made
through an argument pack. This enables, e.g. `Object::invokeMethod()`
to be usable with functions returning types, such as`std::unique_ptr`,
that have no copy ctor/assignment. Since there are no other users of
the argument pack object, this is safe to do. Reference return types
are not supported, so a simple `std::move()` is sufficient.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=273#c1
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Fix the eval() function for Pwls that contain only a single point.
Remove the should_fail from the corresponding test case.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Sometimes it is useful to have a Pwl with only a single point defined.
A practical use case is tuning files with only a single entry for Pwl
related parameters, where the expectation is that this entry just gets
used.
Add a failing test case for such a single point Pwl.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Set the `LIBCAMERA_IPA_FORCE_ISOLATION` environment variable before
constructing the `CameraManager` object. This makes it available during
construction (some components might want to query environment variables
at that time).
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
listed
For a list of log levels like LIBCAMERA_LOG_LEVELS="CatA:0,CatB:1" only
the severity of the last entry is correctly parsed.
Due to the change of level to a string_view in 24c2caa1c1 ("libcamera:
base: log: Use `std::string_view` to avoid some copies") the level is no
longer necessarily null terminated as it is a view on the original data.
Replace the check for a terminating null by a check for the end position
to fix the issue.
Fixes: 24c2caa1c1 ("libcamera: base: log: Use `std::string_view` to avoid some copies")
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The interQuantileMean() is supposed to return a weighted mean value
between two quantiles. This works for fine histograms, but fails for
coarse histograms and small quantile ranges because the weight is always
taken from the lower border of the bin.
Fix that by rewriting the algorithm to calculate a lower and upper bound
for every (partial) bin that goes into the mean calculation and weight
the bins by the middle of these bounds.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
The calculation of the frac variable is based solely on integers and
therefore results in the fractional part being either 0 or 1.
In the original code from RaspberryPi this is mitigated by casting the
nominator to a double. This works for most cases, but fails when q is
very small because of the quantization introduced by item being an
integer.
Fix both issues by doing the full calculation in double and remove the
should_fail tag.
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
