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The "Main Page" of the doxygen generated API reference is currently
totally empty. Expand it with some introductory text along with links
to the developer's guide, application developer's guide and the
pipeline and IPA module writer's guides.
Provide an easy link to switch between the reduced public reference
pages and the more complete internal ones.
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The API reference pages generated by Doxygen are comprehensive, but
therefore quite overwhelming for application developers who will
likely never need to use the majority of the library's objects. To
reduce the complexity of the documentation, split it into two runs of
doxygen.
The first run of doxygen is for the public API. We pass a specific list
of source files to parse, which is built from the arrays of public
headers and sources in meson build files. This ensures that we only
generate the documentation for code from those files.
A custom Python script is needed to add the list of input files to
Doxyfile, as several of the objects included in the header and source
array are custom_tgt objects, which can't be handled as strings to
populate a variable in the configuration data.
The headers defining the Extensible and Object classes (class.h and
object.h respectively), as well as the corresponding source files, are
excluded from the public API documentation despite being referenced in
the meson public headers and sources arrays. This is due to the fact
that public API classes inherit from Extensible and Object, making the
Extensible and Object classes part of the public ABI. Those two base
classes are however implementation details and must not be accessed
directly by application code.
The second run of doxygen is for the internal API. This contains
documentation for all of the library's objects as it currently does.
This set will now be output into build/Documentation/internal-api-html.
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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>
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To prepare for splitting the API documentation in public and internal
documents, split the doxygen_input list in the public and internal
counterparts.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Move the section of the Thread support page dealing with thread safety
to a dedicated .dox file at Documentation/. This is done to support the
splitting of the Documentation into a public and internal version. With
a separate page, references can be made to thread safety without having
to include the Thread class in the doxygen run. Some sections of the new
page are still specific to internal implementations and so are hidden
with the \internal flag and an internal section which is conditionally
included. For now, hardcode it to be included in the Doxyfile.
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Qt5 is now end of life. The libcamera 'qcam' application has removed
support for Qt5, and updated to Qt6.
Update the python 'cam' application accordingly to Qt6.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Rectify incorrect phrase in the sentence -- s/their share/they share/.
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The constructor reference was missing, causing the constructor
documentation to appear in blackLevel() documentation.
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-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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When debugging issues with the Commit class, a __repr__ method proved to
be useful to quickly print all the parsed information about a commit. To
avoid reimplementing the method over and over again in the future, add
it to the class, even if it is not actually used.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
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When running checkstyle.py in a pre-commit hook, there is either no
commit message at all (when committing staged changes as a new commit),
or the commit message comes from a previous commit being amended. In
either case, there's no new commit message yet, and thus nothing to
validate for the title and trailers checkers. The trailers checker, in
particular, will always flag an error, making all commits fail.
To fix that, just skip the two checkers during pre-commit.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
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When parsing commit messages, the Commit class tries to optimize the
process by invoking git-show once only, extracting both the commit
author, title and modified files in one go. As a result, the derived
Amendment class needs to implement the commit parsing separately, as the
modified files need to be extracted differently for amendments (and the
commit ID also needs to be retrieved differently). Furthermore, because
of the list of named files, extracting the trailers needs to invoke
git-show separately.
Improve the situation by reworking the commit message parsing in three
steps. In the first step, use git-show to extract the commit ID, author,
title and body. In the second step, invoke git-interpret-trailers to
extract the trailers from the body that was previously extracted. The
third and final step extracts the list of modified files, using
different methods for regular commits and amendments.
This allows sharing code for the first two steps between the Commit and
Amendment classes, making the code simpler. The Commit class still
invokes git three times, while the Amendment class runs it three times
instead of four, improving performance slightly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
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Add support for a 12-bit Mono format named formats::R12_CSI2P.
This format is added to support the IMX585 mono sensor, which uses the
MEDIA_BUS_FMT_Y12_1X12 media bus format.
Signed-off-by: will whang <will@willwhang.com>
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
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The libcamera coding style groups the C and C++ standard library headers
in a single group. Fix the few offenders in the source tree.
While at it, add a missing blank line between header groups in a
separate location.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
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Without the change the build fails on upcoming `gcc-15` as:
In file included from ../src/libcamera/yaml_parser.cpp:8:
../include/libcamera/internal/yaml_parser.h:183:41: error: 'uint8_t' was not declared in this scope
183 | std::is_same_v<uint8_t, T> ||
| ^~~~~~~
Signed-off-by: Sergei Trofimovich <slyich@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
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Without the change the build fails on upcoming `gcc-15` as:
In file included from ../src/libcamera/base/file.cpp:8:
../include/libcamera/base/file.h:62:33: error: 'uint8_t' was not declared in this scope
62 | ssize_t read(const Span<uint8_t> &data);
| ^~~~~~~
Signed-off-by: Sergei Trofimovich <slyich@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
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The udev_monitor_receive_device() can return NULL on an error as
detailed in the man pages for the function.
The udevNotify() handler in the DeviceEnumeratorUdev directly uses the
return value of udev_monitor_receive_device() in successive calls to
process the event without having first checked the udev_device.
Ensure we identify, and handle events where the udev_device can not be
returned successfully.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=230
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The IPAManager class implements a singleton pattern due to the need of
accessing the instance in a static member function. The function now
takes a pointer to a PipelineHandler, which we can use to access the
CameraManager, and from there, the IPAManager.
Add accessors to the internal API to expose the CameraManager from the
PipelineHandler, and the IPAManager from the CameraManager. This
requires allocating the IPAManager dynamically to avoid a loop in
includes. Use those accessors to replace the IPAManager singleton.
Update the IPA interface unit test to instantiate a CameraManager
instead of an IPAManager and ProcessManager, to reflect the new way that
the IPAManager is accessed.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Trailers are extracted from commits using the '(trailers:*)' formatting
specifier. git ignores dividers when doing so, as if the --no-divider
options was passed to git-interpret-trailers. This prevents trailers
from being located when the patch contains a local changelog.
There is unfortuantely no 'no-no-divider' option to the trailers format
specifier. Fix the issue by extracting trailers with
git-interpret-trailers, that gives better control of the parsing.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Signed-off-by: Jaslo Ziska <jaslo@ziska.de>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The TrailersChecker enforces the presence of a Signed-off-by tag in the
trailer, but doesn't verify that the tag matches the commit's author.
Add that verification, as required by the libcamera contribution
process.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Extend the Commit class with an author property, retrieved from the
commit. It will be used to extend checkers.
While at it, drop the unneeded .strip() call when retrieving the title
for amendment commits. The call got carried over from code that
initially needed it to strip the new line character, but that need
disappeard with usage of .splitlines().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Now that libcamera_internal_sources is separate from
libcamera_internal_headers, perform the same split for
libcamera_public_sources and libcamera_public_headers to ensure
consistency of the build system variables.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The libcamera_tracepoint_header variable stores the tracepoints.h header
custom target, for the sole purpose of being listed as a source of the
libcamera shared library, through the libcamera_internal_sources
variable.
Add the tracepoints.h header to libcamera_internal_headers instead of
libcamera_internal_sources, and list libcamera_internal_headers as a
source of the shared library, alongside libcamera_internal_sources. This
makes libcamera_internal_sources contain sources only, improving clarity
of the build system variables.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The ipa_data_serializer.h and ipc_pipe.h headers are missing from
libcamera_internal_headers. Add them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The IPA headers are listed in two different meson variables, one for
generated headers, and one for the other headers. There's no real reason
for this split, consolidate all of them in the libcamera_ipa_headers
variable.
While at it, don't add the IPA headers to the libcamera_internal_sources
variable, but list libcamera_ipa_headers in the sources for the shared
library. This moves the libcamera_internal_sources variable towards
holding source files, not header files, to improve clarity of the build
system.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The IPA headers are listed in the libcamera_public and libcamera_private
dependency objects, with the generated headers part of the private
dependency object and the non-generated headers part of the public
dependency object. As neither set of IPA headers are part of the public
API, list them both in the libcamera_private dependency object.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The libcamera_generated_ipa_headers variable, containing the list of
generated IPA headers, is listed in the sources of IPA modules, as well
as IPA tests. This was done to ensure that the modules and tests get
rebuilt when the generate IPA headers change. However, the dependency is
already handled through the libcamera_private dependency object,
specified for all those modules and tests. There's no need to list the
IPA generated headers as sources. Drop them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The generated version.h header is part of the public headers, but is
missing from the libcamera_public_headers variable. Add it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Meson array variables hold lists of libcamera's source files. To help
facilitate the splitting of Doxygen generated documentation into
distinct public and internal versions, split those arrays to separate
public and internal variables.
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The *::Private classes are part of the internal API, as their name
implies. They are defined in internal headers, but implemented in the
same source file as their public counterparts. This will cause Doxygen
to complain about missing class definition when splitting the public and
internal API documents, as the internal headers won't be parsed by
Doxygen for the public API documentation.
Marking the classes with \internal isn't enough. The directive prevents
the documentation block from being included in the output, but this
occurs at the generation stage, after the documentation blocks are
parsed. Fix this by completely hidding the implementation of the
*::Private classes from Doxygen using preprocessor conditional
compilation. To do so, introduce a new macro, __DOXYGEN_PUBLIC__, that
will be defined for the public API documentation only.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The libcamera public API exposes classes that have parts considered
internal. They inherit the Extensible class, and their internal parts
are split into a Private class. Those classes are defined in public API
headers, and their Private counterparts are defined in internal headers
sharing a common file name (in a different directory). Both headers are
documented in the same source file.
For instance, include/libcamera/camera.h contains the public API of the
Camera class, and include/libcamera/internal/camera.h its internal
counterpart. Both are documented in src/libcamera/camera.cpp.
As the internal headers are not part of the public API, they need to be
hidden from the future public API builds. To prepare for doing so, mark
them with the \internal Doxygen directive. Hardcode the Doxygen
INTERNAL_DOCS option to YES to include the internal API. This will be
changed later for the public API documentation build.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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libcamera has two formats.h headers, an internal one in
include/libcamera/internal/, and a public one generated at build time.
The convention is to prefix the internal header name with
libcamera/internal/ in the Doxygen file directive, but formats.cpp only
uses internal/ as a prefix. Unify it with the rest of the code base.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Two classes that have both public and internal headers, namely Camera
and Request, make only their public header visible to Doxygen through a
file directive. Fix them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The Doxygen directive only requires qualifying header file names with a
path to differentiate between multiple header files with the same name.
Most file directives that refer to unambiguous files do not have a
libcamera/ and/or internal/ path prefix, but a few do, most likely due
to copy&paste. Drop the prefix in those few files for consistency.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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All commits to libcamera must include a Signed-off-by line, and that
rule is enforced through git hooks and CI. This however doesn't prevent
patches from being submitted without an SoB tag, as noticed multiple
times in the past. Extend the checkstyle.py trailer checker to issue a
warning when the SoB line is missing to try and improve the situation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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libcamera is implemented in C++, use std::vector<> to manage the
dynamically allocated line buffers instead of malloc() and free(). This
simplifies the code and improves memory safety by ensuring no allocation
will be leaked.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
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The documentation for the blackLevel_ member is very terse. Reference
the more complete documentation of the sibling blackLevel() member
function to provide more information.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The libcamera CI has retired gcc 8 testing with the end of life of
Debian Buster at the end of June 2024. As gcc 8 isn't tested anymore, we
can't guarantee it will keep building libcamera correctly. Drop its
support. If anyone still has a compelling use case for gcc 8 support for
libcamera, we will investigate how to restore it in CI.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Spaces at end of lines have cropped up in a few places in libcamera.
Remove them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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* LIBCAMERA_IPA_PROXY_PATH: path to access a proxy IPA
* LIBCAMERA_RPI_TUNING_FILE: used to pass tuning configuration data for the raspberry pi
Signed-off-by: Pablo Pita <pablo.pita@gmail.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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When the configuration file for an IPA module is missing, it is reported
as an error in the log, for example:
ERROR IPAProxy ipa_proxy.cpp:149 Configuration file 'imx219.yaml' not found for IPA module 'simple'
This is misleading because several pipelines use uncalibrated.yaml in
such a case and can continue working. And in case of software ISP,
there is currently no other configuration file so the error is always
reported.
On the other hand, in some other cases the presence of the configuration
file is required and it is an error if it is missing.
Let's introduce a new optional argument to IPAProxy::configurationFile
that specifies a fallback file if the requested file is not found. If
the primary requested file is not found and a non-empty fallback file is
specified then a warning is logged and the fallback file is looked up.
If neither the fallback file can be found then only then an error is
logged and the method returns an empty string. This change has also the
benefit of putting the common fallback file ("uncalibrated.yaml")
pattern to a single place.
Signed-off-by: Milan Zamazal <mzamazal@redhat.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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The argument name is different in the declaration and the definition.
Let's use the same one in both, namely `name'.
Signed-off-by: Milan Zamazal <mzamazal@redhat.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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SimplePipelineHandler::match may be called several times for different
pipeline configurations. Not all of these calls must succeed. For
example, for TI AM69 board with a single camera attached, the following
error is reported in the log even when libcamera works fine:
ERROR SimplePipeline simple.cpp:1558 No sensor found
This is because a sensor is found for /dev/media0 but not for
/dev/media1. The error is harmless in such a case and only confuses
users who may think no camera is detected at all. Let's change the
error to info and add the device node to the message to indicate the
error is specific to the given media only. It's up to the callers to
report a fatal error condition if libcamera cannot work due to no
matching pipeline configuration.
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The file seal TODO item has been addressed. Remove it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Milan Zamazal <mzamazal@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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The memfd underlying the SharedMem object must not shrink, or memory
corruption will happen. Prevent this by setting the shrink seal on the
file. As there's no valid use case for growing the memory either, set
the grow seal as well.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Milan Zamazal <mzamazal@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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uClibc doesn't provide memfd_create(), which led libcamera to open-code
the call using syscall(). Sprinkling the code with #ifdef's isn't the
most readable option, so improve it by providing a local implementation
of memfd_create(), and call the function unconditionally from
MemFd::create(). This makes the main code path more readable.
Suggested-by: Nicolas Dufresne <nicolas@ndufresne.ca>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Milan Zamazal <mzamazal@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
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libcamera creates memfds in two locations already, duplicating some
code. Move the code to a new MemFd helper class.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Milan Zamazal <mzamazal@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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The simple pipeline handler is enabled by default on arm platforms only,
as it used to support arm SoCs only. Now that support for the IPU6 has
been added to the pipeline handler, it should be enabled on x86
platforms as well. Fix it.
Fixes: 06e0d8508e5c ("libcamera: pipeline: simple: Enable intel-ipu6 with Soft ISP")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
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Unlike in C where they have been standardized since C99, variable-length
arrays in C++ are an extension supported by gcc and clang. Clang started
warning about this with -Wall in version 18:
src/libcamera/ipc_unixsocket.cpp:250:11: error: variable length arrays in C++ are a Clang extension [-Werror,-Wvla-cxx-extension]
250 | char buf[CMSG_SPACE(num * sizeof(uint32_t))];
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
One simple option is to disable the warning. However, usage of VLAs in
C++ is discouraged by some, usually due to security reasons, based on
the rationale that developers are often unaware of unintentional use of
VLAs and how they may affect the security of the code when the array
size is not properly validated.
This rationale may sound dubious, as the most commonly proposed fix is
to replace VLAs with vectors (or just arrays dynamically allocated with
new() wrapped in unique pointers), without adding any size validation.
This will not produce much better results. However, keeping the VLA
warning and converting the code to dynamic allocation may still be
slightly better, as it can prompt developers to notice VLAs and check if
size validation is required.
For these reasons, convert all VLAs to std::vector. Most of the VLAs
don't need extra size validation, as the size is bound through different
constraints (e.g. image width for line buffers). An arguable exception
may be the buffers in IPCUnixSocket::sendData() and
IPCUnixSocket::recvData() as the number of fds is not bound-checked
locally, but we will run out of file descriptors before we could
overflow the buffer size calculation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Acked-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
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The Qt 6 qkeysequence.h header has an extra semicolon. This causes a
build failure with clang:
/usr/include/qt6/QtGui/qkeysequence.h:139:26: error: extra ';' after member function definition [-Werror,-Wextra-semi]
139 | Q_ENUM(SequenceMatch);
| ^
We can't fix the issue, so ignore the warning in qcam.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
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This changes is fixing critical error message
"gst_value_set_int_range_step: assertion 'start < end' failed" observed
when building GStreamer caps from a stream configuration whose size
range holds a single size.
GStreamer range step definition requires distinct min and max values
definitions, otherwise above error message is output.
libcamera SizeRange instance may return a single size leading to
identical min and max values. Add a conditional check where the min and
max of the range are distinct during iterating the supported sizes for
each pixelformat.
To prevent appending structures that are already expressed with this
update, gst_caps_merge_structure() is used in place of
gst_caps_append_structure().
Signed-off-by: Hou Qi <qi.hou@nxp.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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