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2021-06-25libcamera/base: Introduce new base libraryKieran Bingham
The libcamera-base.so will feature internal support functionality that is utilised by libcamera, and can be shared in other places. This new library provides a layer beneath libcamera which provides common abstractions to internal objects. A pkg-config file is generated and named libcamera-base.pc which allows components such as external IPA modules to link directly to this library if they need. Normal applications will reference this library through the Requires: statement provided by the libcamera.pc package configuration, and linkage will be handled automatically through the pkg-config mechanisms. No code is moved to this library yet, this patch only introduces the framework, construction and linkage. 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>
2021-06-25libcamera: Separate source and build path helpersKieran Bingham
The libcameraSourcePath and libcameraBuildPath helper functions are internal and specific to libcamera needs while operating with the meson build system. In preparation for the upcoming move of utils to a common library, move these helpers out of utils and into their own build unit. 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>
2021-06-15libcamera: log: Destroy LogCategory instances in a controlled wayLaurent Pinchart
The LogCategory instances are constructed on first use as static variables in accessor functions, following the Meyers singleton pattern. As a result, their destruction order is not guaranteed. This can cause issues as the global Logger object, constructed in a similar fashion, is accessed from the LogCategory destructor and may be destroyed first. To fix this, keep the same singleton pattern, but allocate the LogCategory instances dynamically. As they get registered with the global Logger instance, we can destroy them in the Logger destructor. This only avoids destruction order issues between LogCategory and Logger, and doesn't address yet the fact that LOG() calls from destructors of global objects may access an already destroyed Logger. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chormium.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-14libcamera: CameraSensor: Enable retrieving supported test pattern modesHirokazu Honda
This enables retrieving supported test pattern modes through CameraSensorInfo. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-14libcamera: CameraSensorProperties: Add table of v4l2 index and test patternHirokazu Honda
The V4L2 specification defines the sensor test pattern modes through a menu control, where a numerical index is associated to a string that describes the test pattern. The index-to-pattern mapping is driver specific and requires a corresponding representation in the library. Add to the static list of CameraSensorProperties a map of indexes to libcamera::controls::TestPatternModes values to be able to map the indexes returned by the driver to the corresponding test pattern mode. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-14libcamera: V4L2Device: Support v4l2 menu controlHirokazu Honda
This adds a support of v4l2 menu. The control info for v4l2 menu contains indices without names and 64bit values of querymenu. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-06-14libcamera: request: Add Request::cancel()Jacopo Mondi
Add a cancel() function to the Request class that allows to forcefully complete the request and its associated buffers in error state. Only pending requests can be forcefully cancelled. Enforce that by asserting the request state to be RequestPending. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-06-14ipa: ipu3: Support return values from configure()Kieran Bingham
The IPU3 IPA interface does not define a return value from configure(). This prevents errors from being reported back to the pipeline handler when they occur in the IPA. Update the IPU3 IPA interface and add return values to the checks in IPAIPU3::configure() accordingly Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-06-08libcamera: utils: Add helper class for std::chrono::durationNaushir Patuck
A new utils::Duration class is defined to represent a std::chrono::duration type with double precision nanosecond timebase. Using a double minimises the loss of precision when converting timebases. This helper class may be used by IPAs to represent variables such as frame durations and exposure times. An operator << overload is defined to help with displaying utils::Duration value in stream objects. Currently, this will display the duration value in microseconds. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-05-31android: Update Android headersLaurent Pinchart
Import the latest version of the Android headers from Chrome OS (commit a30340e77ec8 ("camera: Uprev Android camera headers")). This brings in the Camera HAL v3.5 support. The headers are imported verbatim, except for the addition of the SPDX headers. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Tested-by: Paul Elder <paul.elder@ideasonboard.com>
2021-05-27meson: ipa: Pass core.mojom to the docs generatorPaul Elder
We don't want to generate the same functional files for core.mojom as the other mojom files, but we do want to generate the documentation cpp files. Add core.mojom to the mojom files list after the main generation is complete, so that the documentation generator can pick it up. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
2021-05-27ipa: core: Move documentation from cpp file back into the mojom filePaul Elder
Move the documentation back to the mojom file from the cpp file. While at it, move the documentation for IPAInterface::init() and IPAInterface::stop() to the IPA guide. While at it, update the todo comment in all of the mojom files accordingly. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> [umang.jain@ideasonboard.com: Update todos] Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2021-05-27meson: ipa: Use files() to locate the mojom filesPaul Elder
Use meson's files() to list the mojom files instead of the file names directly. This is so that we can still access the files from src/libcamera/ipa/meson.build later for building documentation cpp files from the mojom files. While at it, fix some redundant string manipulation in building the mojom modules. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
2021-05-27controls: Split FrameDurations into FrameDuration and FrameDurationLimitsPaul Elder
We need a separate control to report the nominal frame duration, but it's also useful to report the min/max frame duration values that will be used. Split the FrameDurations control into FrameDuration and FrameDurationLimits respectively to support both of these. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2021-05-26ipa: ipu3: Provide frame timestamps through IPU3EventUmang Jain
Pass in frame timestamps from IPU3 pipeline handler to IPU3 IPA via IPU3Event. Frame timestamps are helpful to IPA algorithms to convergence, by setting them via IPA stats. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-05-26ipa: ipu3: Rectify ControlInfoMap matching in IPAConfigInfoUmang Jain
The ControlInfoMap of entityControls member in IPAConfigInfo struct, was not able to correctly match to the ControlInfoMap defined in core.mojom. This resulted in a FATAL breakage when IPU3 IPA is meant to run: FATAL IPADataSerializer ipa_data_serializer.cpp:437 ControlSerializer not provided for serialization of ControlInfoMap Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-05-24ipa: ipu3: Introduce IPAConfigInfo in IPCUmang Jain
IPAConfigInfo is a consolidated data structure passed from IPU3 pipeline-handler to IPU3 IPA. The structure can be extended with additional parameters to accommodate the requirements of multiple IPU3 IPA modules. Adapt the in-tree IPU3 IPA to use IPAConfigInfo as well. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-05-24ipa: meson: Install mojom generated headers to include pathsUmang Jain
Generated IPA headers from mojom files need to be installed to $INCLUDE_PATH in order to be available system-wide. Without this, out-of-tree IPAs won't be able to link and build themselves. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-05-24ipa: ipc: Rename CameraSensorInfo to IPACameraSensorInfoUmang Jain
This matches the naming convention for IPA IPC. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Acked-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.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>
2021-05-24ipa: mojom: Move CameraSensorInfo struct exclusively to IPA IPCUmang Jain
CameraSensorInfo structure is designed to pass in camera sensor related information from pipeline-handler to IPA. Since the pipeline-handler and IPA are connected via mojom IPC IPA interface, the interface itself provides a more suitable placement of CameraSensorInfo, instead of camera_sensor.h (which is a libcamera internal header ultimately, at this point). As CameraSensorInfo is already defined in core.mojom, it is just a matter of removing [skipHeader] tag to allow code-generation of CameraSensorInfo. Finally, update header paths to include CameraSensorInfo definition from IPA interfaces instead of "libcamera/internal/camera_sensor.h". Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.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>
2021-05-24ipa: Move core IPA interface documentation to a .cpp fileUmang Jain
Moving the core.mojom documentation to its corresponding .cpp file (core_ipa_interface.cpp). This will allow Doxygen to generate the documentation for IPABuffer, IPASettings and IPAStream structures. Since the .mojom files are placed in include/ directory, the .cpp file will live in $sourcedir/src/libcamera/ipa/ - which can also contain documentation for other mojom generated IPA interfaces in subsequent commit. Also hide the constructors in generated IPA interface from doxygen, via #ifndef __DOXYGEN__. These constructors provide no major value in documenting them, instead will spew out doxygen warnings during the build. Signed-off-by: Umang Jain <umang.jain@ideasonboard.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-05-24libcamera: V4L2Control: remove V4L2Control classesHirokazu Honda
V4L2ControlId and V4L2ControlInfo are just convenience classes to create ControlId and ControlInfo from v4l2_query_ext_control. Therefore, there is no need of being a class. It is used only from V4L2Device. This removes the classes and put the equivalent functions of creating ControlId and ControlInfo in v4l2_device.cpp. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-05-18libcamera: utils: Add enumerate view for range-based for loopsLaurent Pinchart
Range-based for loops are handy and widely preferred in C++, but are limited in their ability to replace for loops that require access to a loop counter. The enumerate() function solves this problem by wrapping the iterable in an adapter that, when used as a range-expression, will provide iterators whose value_type is a pair of index and value reference. The iterable must support std::begin() and std::end(). This includes all containers provided by the standard C++ library, as well as C-style arrays. A typical usage pattern would use structured binding to store the index and value in two separate variables: std::vector<int> values = ...; for (auto [index, value] : utils::enumerate(values)) { ... } Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2021-05-11libcamera: Use get_option('includedir') instead of raw 'include'Umang Jain
In most cases, file paths in meson files start with get_option(). To maintain a consistent theme, use meson's get_option('includedir') universal option over raw 'include'. This option is defaulted to 'include' string value, hence 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>
2021-05-11meson: Replace obselete join_paths() with '/' operatorUmang Jain
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>
2021-05-11libcamera: camera_sensor: Fix frame lengths calculated by sensorInfo()David Plowman
The minimum and maximum vblanking can change when a new format is applied to the sensor subdevice, so be sure to retrieve up-to-date values. The V4L2Device acquires the new updateControlInfo() method to perform this function, and which the CameraSensor calls automatically if its setFormat method is used to update the sensor. However, not all pipeline handlers invoke the setFormat method directly, so the new method must be made publicly available for pipeline handlers to call if they need to. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> 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>
2021-05-10libcamera: camera_sensor: Register static propertiesJacopo Mondi
Register static properties in the CameraSensor class by inspecting the camera sensor properties database. Static properties are overridden by properties retrieved from the kernel interface at run-time if any overlap between the two sets occurs. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-05-10libcamera: Introduce camera sensor propertiesJacopo Mondi
Introduce a database of camera sensor properties, which contains information on the camera sensor which are not possible, or desirable, to retrieve from the device at run time. The camera sensor database is accessed through a static function and is indexed using the camera sensor model as reported by properties::Model. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-05-06libcamera: controls: Add a function to merge two control listsLaurent Pinchart
Add a new ControlList::merge() function to merge two control lists by copying in the values in the list passed as parameters. This can be used by pipeline handlers to merge metadata they populate with metadata received from an IPA. Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [reimplement the function by not using std::unordered_map::merge()] Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-04-27libcamera: internal: log: Report function on assertsKieran Bingham
Report the function which fails an assertion as well as the actual assertion. This now reports as: [30:08:53.218816270] [226567] FATAL default request.cpp:150 assertion "d" failed in reuse() rather than: [30:11:05.271888926] [228531] FATAL default request.cpp:150 assertion "d" failed Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-04-27ipa: mojom: Put core.mojom in the libcamera namespacePaul Elder
Put core.mojom in the libcamera namespace, as all structs that are defined in core.mojom are meant to be in that namespace. Fix the structs that are used in the other mojom files accordingly. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-04-27utils: ipc: Include instead of forward-declare CameraSensorInfoPaul Elder
For structs defined in core.mojom that have the skipHeader tag, if they're only used in function parameters (in a mojom file) then a forward-declaration is sufficient. However, if the struct is used in another struct in a mojom file, then the forward-declaration is insufficient, and the definition needs to be included. Do so for CameraSensorInfo, which is the only forward-declared struct in ipa_interface.h, and update the documentation comment. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Tested-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-04-26libcamera: V4L2Device: Use Span in updateControls()Hirokazu Honda
V4L2Device::updateControls() takes two arguments, raw array and its size, for the v4l2_ext_control values. This replaces it with libcamera::Span. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Jacopo Mondi <jacopo@jmondi.org>
2021-04-22libcamera: pipeline: ipu3: Cancel unused buffersKieran Bingham
When the CIO2 returns a cancelled buffer, we will not queue buffers to the IMGU. These buffers should be explicitly marked as cancelled to ensure the application knows there is no valid metadata or frame data provided in the buffer. Provide a cancel() method on the FrameBuffer to allow explicitly cancelling a buffer. Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Hirokazu Honda <hiroh@chromium.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-04-22libcamera: camera: Assert pipelines complete all requestsKieran Bingham
When the camera manager calls stop on a pipeline, it is expected that the pipeline handler guarantees all requests are returned back to the application before the camera has stopped. Ensure that this guarantee is met by providing an accessor on the pipeline handler to validate that all pending requests are removed. Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-04-21libcamera: class: Drop 'klass' argument from documentationJacopo Mondi
The LIBCAMERA_D_PTR() and LIBCAMERA_O_PTR() macros do not require an argument, but the version of the macro consumed by Doxygen does. Fix this by removing the klass parameter from both macros in their documentation version. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-04-21libcamera: Drop argument from LIBCAMERA_DECLARE_PRIVATEJacopo Mondi
The LIBCAMERA_DECLARE_PRIVATE() macro, used by the library classes that inherit from libcamera::Extensible in order to implement the PIMPL pattern, expands to: public: \ class Private; \ friend class Private; The 'klass' argument is not used and it might confuse developers as it might hint that the class that defines the pattern's implementation can be freely named, while it is actually hardcoded to 'Private'. Drop the argument from the macro definition. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Hanlin Chen <hanlinchen@google.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-04-17libcamera: bound_method: Please the gcc undefined behaviour sanitizerLaurent Pinchart
Enabling the gcc undefined behaviour sanitizer (with the meson configure -Db_sanitize=undefined option) causes many tests to fail, with errors such as the following (for test/object-invoke): ------------------------------------------------------------------------ ../../include/libcamera/bound_method.h:198:27: runtime error: member access within address 0x55fcd7bfbd38 which does not point to an object of type 'BoundMethodBase' 0x55fcd7bfbd38: note: object has invalid vptr fc 55 00 00 2a 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 31 00 00 00 00 00 00 00 4b c6 72 88 ^~~~~~~~~~~~~~~~~~~~~~~ invalid vptr ../../include/libcamera/bound_method.h:198:41: runtime error: member call on null pointer of type 'struct InvokedObject' ../../include/libcamera/bound_method.h:198:41: runtime error: member access within null pointer of type 'struct InvokedObject' Segmentation fault ------------------------------------------------------------------------ or ------------------------------------------------------------------------ ../../include/libcamera/bound_method.h:198:27: runtime error: member access within address 0x603000006628 which does not point to an object of type 'BoundMethodBase' 0x603000006628: note: object has invalid vptr 70 55 00 00 2a 00 00 00 be be be be 03 02 00 00 18 00 00 00 01 00 00 60 00 00 00 00 05 00 80 07 ^~~~~~~~~~~~~~~~~~~~~~~ invalid vptr ================================================================= ==941==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x603000006630 at pc 0x55704e461371 bp 0x7fff539b9040 sp 0x7fff539b9030 READ of size 8 at 0x603000006630 thread T0 #0 0x55704e461370 in libcamera::BoundMethodMember<InvokedObject, void, int>::invoke(int) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x47370) #1 0x55704e4622ca in void libcamera::BoundMethodArgs<void, int>::invokePack<0ul>(libcamera::BoundMethodPackBase*, std::integer_sequence<unsigned long, 0ul>) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x482ca) #2 0x55704e460a93 in libcamera::BoundMethodArgs<void, int>::invokePack(libcamera::BoundMethodPackBase*) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x46a93) #3 0x7fdc38a5fec4 in libcamera::InvokeMessage::invoke() ../../src/libcamera/message.cpp:154 #4 0x7fdc38a62faf in libcamera::Object::message(libcamera::Message*) ../../src/libcamera/object.cpp:183 #5 0x7fdc38ad3742 in libcamera::Thread::dispatchMessages(libcamera::Message::Type) ../../src/libcamera/thread.cpp:575 #6 0x7fdc38972d8d in libcamera::EventDispatcherPoll::processEvents() ../../src/libcamera/event_dispatcher_poll.cpp:148 #7 0x55704e44bc15 in ObjectInvokeTest::run() (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x31c15) #8 0x55704e4630ab in Test::execute() ../../test/libtest/test.cpp:28 #9 0x55704e44965b in main ../../test/object-invoke.cpp:204 #10 0x7fdc36090eba in __libc_start_main ../csu/libc-start.c:314 #11 0x55704e449359 in _start (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x2f359) 0x603000006630 is located 0 bytes to the right of 32-byte region [0x603000006610,0x603000006630) allocated by thread T0 here: #0 0x7fdc3ad757c7 in operator new(unsigned long) /var/tmp/portage/sys-devel/gcc-11.0.1_pre9999/work/gcc-11.0.1_pre9999/libsanitizer/asan/asan_new_delete.cpp:99 #1 0x55704e45afea in __gnu_cxx::new_allocator<std::_Sp_counted_ptr_inplace<libcamera::BoundMethodPack<void, int>, std::allocator<libcamera::BoundMethodPack<void, int> >, (__gnu_cxx::_Lock_policy)2> >::allocate(unsigned long, void const*) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x40fea) #2 0x55704e45a45d in std::allocator_traits<std::allocator<std::_Sp_counted_ptr_inplace<libcamera::BoundMethodPack<void, int>, std::allocator<libcamera::BoundMethodPack<void, int> >, (__gnu_cxx::_Lock_policy)2> > >::allocate(std::allocator<std::_Sp_counted_ptr_inplace<libcamera::BoundMethodPack<void, int>, std::allocator<libcamera::BoundMethodPack<void, int> >, (__gnu_cxx::_Lock_policy)2> >&, unsigned long) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x4045d) #3 0x55704e458339 in std::__allocated_ptr<std::allocator<std::_Sp_counted_ptr_inplace<libcamera::BoundMethodPack<void, int>, std::allocator<libcamera::BoundMethodPack<void, int> >, (__gnu_cxx::_Lock_policy)2> > > std::__allocate_guarded<std::allocator<std::_Sp_counted_ptr_inplace<libcamera::BoundMethodPack<void, int>, std::allocator<libcamera::BoundMethodPack<void, int> >, (__gnu_cxx::_Lock_policy)2> > >(std::allocator<std::_Sp_counted_ptr_inplace<libcamera::BoundMethodPack<void, int>, std::allocator<libcamera::BoundMethodPack<void, int> >, (__gnu_cxx::_Lock_policy)2> >&) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x3e339) #4 0x55704e4574ad in std::__shared_count<(__gnu_cxx::_Lock_policy)2>::__shared_count<libcamera::BoundMethodPack<void, int>, std::allocator<libcamera::BoundMethodPack<void, int> >, int&>(libcamera::BoundMethodPack<void, int>*&, std::_Sp_alloc_shared_tag<std::allocator<libcamera::BoundMethodPack<void, int> > >, int&) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x3d4ad) #5 0x55704e4569c7 in std::__shared_ptr<libcamera::BoundMethodPack<void, int>, (__gnu_cxx::_Lock_policy)2>::__shared_ptr<std::allocator<libcamera::BoundMethodPack<void, int> >, int&>(std::_Sp_alloc_shared_tag<std::allocator<libcamera::BoundMethodPack<void, int> > >, int&) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x3c9c7) #6 0x55704e455f9d in std::shared_ptr<libcamera::BoundMethodPack<void, int> >::shared_ptr<std::allocator<libcamera::BoundMethodPack<void, int> >, int&>(std::_Sp_alloc_shared_tag<std::allocator<libcamera::BoundMethodPack<void, int> > >, int&) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x3bf9d) #7 0x55704e454eb5 in std::shared_ptr<libcamera::BoundMethodPack<void, int> > std::allocate_shared<libcamera::BoundMethodPack<void, int>, std::allocator<libcamera::BoundMethodPack<void, int> >, int&>(std::allocator<libcamera::BoundMethodPack<void, int> > const&, int&) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x3aeb5) #8 0x55704e454220 in std::shared_ptr<libcamera::BoundMethodPack<void, int> > std::make_shared<libcamera::BoundMethodPack<void, int>, int&>(int&) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x3a220) #9 0x55704e450e60 in libcamera::BoundMethodMember<InvokedObject, void, int>::activate(int, bool) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x36e60) #10 0x55704e44efb2 in void libcamera::Object::invokeMethod<InvokedObject, void, int, int, (void*)0>(void (InvokedObject::*)(int), libcamera::ConnectionType, int) (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x34fb2) #11 0x55704e44b7cc in ObjectInvokeTest::run() (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x317cc) #12 0x55704e4630ab in Test::execute() ../../test/libtest/test.cpp:28 #13 0x55704e44965b in main ../../test/object-invoke.cpp:204 #14 0x7fdc36090eba in __libc_start_main ../csu/libc-start.c:314 SUMMARY: AddressSanitizer: heap-buffer-overflow (libcamera/build/x86-gcc-11.0.1/test/object-invoke+0x47370) in libcamera::BoundMethodMember<InvokedObject, void, int>::invoke(int) Shadow bytes around the buggy address: 0x0c067fff8c70: 00 fa fa fa 00 00 06 fa fa fa fd fd fd fd fa fa 0x0c067fff8c80: 00 00 06 fa fa fa 00 00 03 fa fa fa 00 00 00 05 0x0c067fff8c90: fa fa 00 00 04 fa fa fa 00 00 00 00 fa fa fd fd 0x0c067fff8ca0: fd fd fa fa fd fd fd fd fa fa fd fd fd fd fa fa 0x0c067fff8cb0: fd fd fd fd fa fa 00 00 00 00 fa fa 00 00 00 00 =>0x0c067fff8cc0: fa fa 00 00 00 00[fa]fa fd fd fd fa fa fa fa fa 0x0c067fff8cd0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c067fff8ce0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c067fff8cf0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c067fff8d00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c067fff8d10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb Shadow gap: cc ==941==ABORTING ------------------------------------------------------------------------ The root cause isn't clear, but this change fixes the issue. It may be a bug in gcc. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-04-17libcamera: signal: Fix return value template type of BoundMethodMemberLaurent Pinchart
The BoundMethodMember instance created in Signal::connect() for receivers inheriting from the Object class incorrectly sets the return type to void instead of R. This doesn't cause any functional issue as the return type is ignored anyway for signals, but should be fixed nonetheless. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-04-15libcamera: span: Fix reverse iteratorsLaurent Pinchart
std::reverse_iterator<iterator> is constructed from an instance of iterator, and automatically subtracts 1 when dereferencing. rbegin() and rend() should thus be constructed from end() and begin() respectively. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-04-15libcamera: log: Use compiler builtins to retrieve file and line numberLaurent Pinchart
Replace the __FILE__ and __LINE__ values passed to the _log() function with default parameters, taking their values from the __builtin_FILE() and __builtin_LINE() functions. This moves handling of the file and line from the preprocessor to the compiler, which is generally preferred as it increases type safety. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Sebastian Fricke <sebastian.fricke@posteo.net> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-04-15libcamera: log: De-duplicate _log() functions and LogMessage constructorLaurent Pinchart
The _log() functions, as well as the LogMessage constructor, exist in two versions, one that takes a log category, and one that doesn't. The latter uses the default log category. This can be simplified by passing a LogCategory pointer to _log(), which can then be null for the default category, and moving the retrieval of the default log category from the LogMessage constructor to the _log() function. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Sebastian Fricke <sebastian.fricke@posteo.net> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-04-13libcamera: ipa_proxy: Scope ProxyState to IPAProxyKieran Bingham
The ProxyState is only used by the IPAProxy, so it should remain inside that scope. This helps clarify the usage, and improves the documentation by bringing the (future) ProxyState documentation into the class. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-04-12libcamera: bound_method: Fix type of pack for void methodsLaurent Pinchart
The BoundMethodPack used by the void BoundMethodArgs variant incorrectly specified the template argument as void * instead of void. This causes no functional problem, but results in space for an unused void * return value being reserved. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sebastian Fricke <sebastian.fricke@posteo.net> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-04-03libcamera: pipeline_handler: Make queueRequest() void functionHirokazu Honda
PipelineHandler::queueRequest() is asynchronously invoked in Camera::queueRequest(). Therefore the return value of PipelineHandler::queueRequest() is useless. This changes the function to a void function. Signed-off-by: Hirokazu Honda <hiroh@chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-03-29libcamera: thread: Remove the unused setEventDispatcher() functionLaurent Pinchart
Custom event dispatchers for threads was an API meant to provide a way to integrate libcamera in the application's event loop. This isn't used anymore, as libcamera now creates internal threads. Drop the unused Thread::setEventDispatcher() function, and update the documentation accordingly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-03-29libcamera: request: Add a toString()Kieran Bingham
Provide a toString helper to assist in printing Request state for debug and logging contexts. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-03-29libcamera: request: Provide a sequence numberKieran Bingham
Provide a sequence number on Requests which are added by the pipeline handler. Each pipeline handler keeps a requestSequence per CameraData and increments everytime a request is queued on that camera. The sequence number is associated with the Request and can be utilised for assisting with debugging, and printing the queueing sequence of in flight requests. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2021-03-29libcamera: buffer: Break friendship with RequestKieran Bingham
The FrameBuffer class is only friends with Request so that the request can be associated with the buffers. FrameBuffer already has a helper to setRequest(), so let's use that directly instead. 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>
2021-03-29utils: ipc: proxy: Track IPA with a state machineKieran Bingham
Asynchronous tasks can only be submitted while the IPA is running. Further more, the shutdown sequence can not be tracked with a simple running flag. We can also be in the state 'Stopping' where we have not yet completed all events, but we must not commence anything new. Refactor the running_ boolean into a stateful enum to track this. 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>