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2024-08-16py: gen-py-controls: Convert to jinja2 templatesLaurent Pinchart
Jinja2 templates help separate the logic related to the template from the generation of the data. The python code becomes much clearer as a result. As an added bonus, we can use a single template file for both controls and properties. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Acked-by: Paul Elder <paul.elder@ideasonboard.com>
2024-08-16py: gen-py-controls: Use Control classLaurent Pinchart
Replace manual extraction of data from YAML with the Control helper class. This centralizes YAML parsing and avoids manual mistakes. In order to import the controls module, add the utils/codegen/ directory to the PYTHONPATH through the Python build environment. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-08-16utils: codegen: gen-controls.py: Move helper classes to separate fileLaurent Pinchart
The ControlEnum and Control helper classes defined in gen-controls.py are useful for other generator scripts. Move them to a separate file to make it possible to share them. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
2024-08-16utils: codegen: gen-controls.py: Convert to jinja2 templatesLaurent Pinchart
Jinja2 templates help separate the logic related to the template from the generation of the data. The python code becomes much clearer as a result. As an added bonus, we can use a single template file for both controls and properties. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-08-16meson: utils: Provide environment for Python scriptsLaurent Pinchart
Python scripts run as part of the build process need to take a few actions specific to the environment in which they operate. One of those is disabling the Python bytecode cache, to avoid writing .pyc files to the source tree. This is done manually in the IPC generate.py and parser.py scripts. The current implementation is not ideal because it hardcodes in the scripts information related to the environment in which they operate. As those scripts are part of libcamera this is more of a theoretical issue than a practical one. A second issue is that future Python scripts will need to duplicate similar mechanisms, resulting in a higher maintenance burden. Address the issue with a different approach, by creating a meson environment for the Python scripts, and passing it to the custom_target() functions. The environment only disables the bytecode cache for now. The diffstat shows an increase in code size. This is expected to be offset by usage of the environment for more Python scripts, as well as support of more variables in the environment. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-08-15libcamera: Drop remaining file names from header comment blocksLaurent Pinchart
Commit 829acb3ab0b1 ("libcamera: Drop file name from header comment blocks in templates") dropped file names from header comment blocks in templates, but forgot the control and property .cpp templates. Fix it. Fixes: 829acb3ab0b1 ("libcamera: Drop file name from header comment blocks in templates") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-08-15meson: Fix mismatch in controls and properties generated file namesLaurent Pinchart
The header for controls and properties are generated from the control_ids.h.in and property_ids.h.in templates respectively, and the generated files are named control_ids.h and property_ids.h. For sources, the templates are named control_ids.cpp.in and property_ids.cpp.in, but the output files are named controls_ids.cpp and properties_ids.cpp. This discrepancy causes confusion. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-08-15meson: Store controls and properties YAML files in variablesLaurent Pinchart
When generating control headers, the YAML files to be used are determined dynamically based on the selected pipeline handlers. As part of this process, the build system populates an array of meson File objects used as an input for the control headers generation custom target, as well as an array of file names (as strings). The file names array is later used to generate the control source files for the libcamera core, as well as the source code for controls support in the Python bindings. Both of the source code generators manually turn the array of file names into File objects. This duplicates code and reduces readability. A third similar implementation has also been proposed to generate control support sources in the GStreamer element, making the issue worse. To simplify this, store File objects instead of file names in the controls_files array. As the meson configuration summary doesn't support File objects, create a separate controls_files_names to store the file names for that sole purpose. The exact same process occurs for properties, address them the same way. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-08-14libcamera: camera: Hide Camera::create() from the public APILaurent Pinchart
The Camera::create() function is internal. Hide it from the public API documentation. 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>
2024-08-14Documentation: Split public/private documentationDaniel Scally
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>
2024-08-14Documentation: Add Thread safety pageDaniel Scally
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>
2024-08-12py: cam: Convert to PyQt6Tomi Valkeinen
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>
2024-08-12libcamera: simple: Fix a typo in a doc stringMilan Zamazal
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>
2024-08-12ipa: libipa: Add missing CameraSensorHelper fn label in docsMilan Zamazal
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>
2024-08-12libcamera: formats: Adding Support for Y12Pwill whang
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>
2024-08-12libcamera: Fix header groupingLaurent Pinchart
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>
2024-08-08libcamera: udev: Catch udev notification errorsKieran Bingham
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>
2024-08-07libcamera: ipa_manager: Remove singleton requirementLaurent Pinchart
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>
2024-08-07gstreamer: Fix missing "greater than" symbol in author stringJaslo Ziska
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>
2024-08-07libcamera: Don't add libcamera_public_headers to libcamera_public_sourcesLaurent Pinchart
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>
2024-08-07libcamera: Consolidate tracepoint header in libcamera_internal_headersLaurent Pinchart
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>
2024-08-07libcamera: Consolidate all IPA headers in libcamera_ipa_headersLaurent Pinchart
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>
2024-08-07libcamera: Move IPA headers to the libcamera_private dependencyLaurent Pinchart
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>
2024-08-07libcamera: Drop libcamera_generated_ipa_headers from sourcesLaurent Pinchart
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>
2024-08-07libcamera: Split public and internal source arraysDaniel Scally
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>
2024-08-07libcamera: Hide *::Private classes with __DOXYGEN_PUBLIC__Laurent Pinchart
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>
2024-08-07libcamera: Mark internal parts of public classes with \internalLaurent Pinchart
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>
2024-08-07libcamera: Unify Doxygen file directive prefix for formats.hLaurent Pinchart
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>
2024-08-07libcamera: Make all internal headers visible to DoxygenLaurent Pinchart
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>
2024-08-07libcamera: Drop path prefix from Doxygen file directiveLaurent Pinchart
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>
2024-08-05libcamera: software_isp: Replace malloc() with std::vector<>Laurent Pinchart
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>
2024-08-05ipa: libipa: camera_sensor_helper: Reference blackLevel() in documentationLaurent Pinchart
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>
2024-08-05libcamera: Remove spaces at end of linesLaurent Pinchart
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>
2024-08-01libcamera: ipa_proxy: Report a missing configuration as a warningMilan Zamazal
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>
2024-08-01libcamera: simple: Log a missing sensor in a better wayMilan Zamazal
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>
2024-08-01libcamera: software_isp: Remove file seal TODO itemLaurent Pinchart
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>
2024-08-01libcamera: shared_mem_object: Prevent memfd from shrinking or growingLaurent Pinchart
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>
2024-08-01libcamera: base: memfd: Handle uClibc compatibility with function wrapperLaurent Pinchart
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>
2024-08-01libcamera: base: Add MemFd helper classLaurent Pinchart
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>
2024-07-31libcamera: Avoid variable-length arraysLaurent Pinchart
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>
2024-07-30apps: qcam: Disable -Wextra-semiLaurent Pinchart
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>
2024-07-26gstreamer: Fix width and height range handlingHou Qi
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>
2024-07-25gst: Add child proxy support to libcamerasrcNicolas Dufresne
The child proxy interface is needed in order to allow setting properties on pad using parse launch syntax. Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-07-25libcamera: libipa: camera_sensor: Add onsemi AR0144 sensor propertiesLaurent Pinchart
Provide the onsemi AR0144 camera sensor properties and registration with libipa for the gain code helpers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-07-25v4l2: v4l2_compat: Fix ioctl() prototype with musl C libraryLaurent Pinchart
The musl C library, as well as the POSIX standard, define the ioctl() function's request argument as an int. glibc and uclibc, on the other hand, define it as an unsigned long. This difference between the function prototype and the implementation in the V4L2 adaptation layer causes a compilation error with musl. Fix it by detecting the function prototype and declaring the libcamera ioctl() handler accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.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>
2024-07-25gstreamer: allocator: Ensure camera manager stay aliveNicolas Dufresne
Without the camera manager, it is not possible to cleanly delete the FrameBufferAllocator object. Keep the camera manager alive until all the memory object have been released. A shared_ptr to the CameraManager is introduced which is itself stored as a plain pointer and allocated and released explicitly. When more than one C++ member is required, this can be refactored to use a new C++ class, but the struct _GstLibcameraAllocator is allocated and freed by glib, so it does not have automatic destruction presently. Bug: https://bugs.libcamera.org/show_bug.cgi?id=211 [Kieran: Update test framework to remove expected test fail] Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.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>
2024-07-25gstreamer: pool: Replace GstAtomicQueue with deque and mutexNicolas Dufresne
The GstAtomicQueue only supports 2 threads, one pushing, and one popping. We pop and push on error cases and we may have multiple threads downstream returning buffer (using tee), which breaks this assumption. On top of which, the release function, that notifies when the queue goes from empty to not-empty relies on a racy empty check. The downstream thread that does this check is effectively concurrent with our thread calling acquire(). Fix this by replacing the GstAtomicQueue with a std::deque, and protect access to that using the object lock. Bug: https://bugs.libcamera.org/show_bug.cgi?id=201 Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-07-24ipa: rkisp1: ccm: Ensure metadata contains valid ccmStefan Klug
When the colour temperature does not change between frames, the ccm inside the frame context is not updated and the metadata contains invalid data. Fix that by caching the ccm inside the active state. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> [Kieran: Remove spurious [[maybe_unused]] addition] Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-07-24ipa: rkisp1: ccm: Fix ccm metadata outputStefan Klug
Only the first three entries of the matrix were set. Fix that. Fixes: cbfdfa42cacc ("ipa: rkisp1: algorithms: Add crosstalk algorithm") Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.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>
2024-07-24ipa: rkisp1: awb: Unconditionally fill metadataStefan Klug
When the colour temperature estimation gets skipped, the metadata isn't populated. Fix that by filling the metadata early in the function. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.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>