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2020-01-23libcamera: camera_manager: Move private data members to private implementationLaurent Pinchart
Use the d-pointer idiom ([1], [2]) to hide the private data members from the CameraManager class interface. This will ease maintaining ABI compatibility, and prepares for the implementation of the CameraManager class threading model. [1] https://wiki.qt.io/D-Pointer [2] https://en.cppreference.com/w/cpp/language/pimpl Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-22libcamera: signal: Make slots list privateLaurent Pinchart
The slots list is touched from most of the Signal template functions. In order to prepare for thread-safety, move handling of the list to a small number of non-template functions in the SignalBase class. This incidently fixes a bug in signal disconnection handling where the signal wasn't removed from the object's signals list, as pointed out by the signals unit test. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-22libcamera: bound_method: Use std::index_sequenceLaurent Pinchart
Now that we're using C++-14, replace the manual implementation of std::integer_sequence with std::index_sequence, a specialization of std::integer_sequence with the integer type equal to std::size_t. The template parameter S that denotes a sequence is replaced with I to align with the usage examples of cppreference.com. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-12libcamera: camera: Remove the prepared stateNiklas Söderlund
With the FrameBuffer rework completed there is no reason to keep the camera prepared state around as buffer allocations are now decoupled from the camera state. Remove the camera state simplifying the API. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: Remove dead code after switch to FrameBufferNiklas Söderlund
Delete all dead code after switching to the FrameBuffer interface. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: Switch to FrameBuffer interfaceNiklas Söderlund
Switch to the FrameBuffer interface where all buffers are treated as external buffers and are allocated outside the camera. Applications allocating buffers using libcamera are switched to use the FrameBufferAllocator helper. Follow-up changes to this one will finalize the transition to the new FrameBuffer interface by removing code that is left unused after this change. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: allocator: Add FrameBufferAllocator to help applications allocate ↵Niklas Söderlund
buffers The FrameBuffer interface is based on the idea that all buffers are allocated externally to libcamera and are only used by it. This is meant to create a simpler API centered around usage of buffers, regardless of where they come from. Linux however lacks a centralized allocator at the moment, and not all users of libcamera are expected to use another device that could provide suitable buffers for the camera. This patch thus adds a helper class to allocate buffers internally in libcamera, in a way that matches the needs of the FrameBuffer-based API. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: buffer: Move captured metadata to FrameMetadataNiklas Söderlund
Move the metadata retrieved when dequeuing a V4L2 buffer into a FrameMetadata object. This is done as a step to migrate to the FrameBuffer interface as the functions added to Buffer around FrameMetadata match the ones in FrameBuffer. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: request: In addBuffer() do not fetch stream from BufferNiklas Söderlund
In the FrameBuffer interface the stream will not be available from the buffer object as the buffer might be allocated externally. The application needs to explicitly state which stream the buffer is being added for to the request. Extend the addBuffer() function to get this information explicitly from the caller. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: buffer: Drop private function setRequest()Niklas Söderlund
There is no need to have a private helper function to access a private data member when a friend statement is needed anyhow. Remove the helper function to simplify the code and make it clear that a private member of Buffer is accessed. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: buffers: Remove Plane classNiklas Söderlund
There are no users left of the Plane class, drop it. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: buffer: Switch from Plane to FrameBuffer::PlaneNiklas Söderlund
It is not libcamera's responsibility to handle memory mappings. Switch from the soon to be removed Plane class which deals with memory mappings to FrameBuffer::Plane which just describes it. This makes the transition to the full FrameBuffer easier. As the full FrameBuffer interface has not yet spread to all parts of libcamera core it is hard to create efficient caching of memory mappings in the qcam application. This will be fixed in a later patch, for now the dmabuf is mapped and unmapped each time it is seen by the application. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12ipa: Switch to FrameBuffer interfaceNiklas Söderlund
Switch the IPA interfaces and implementations to use the Framebuffer interface. - The IPA interface is switched to use the simpler FrameBuffer::Plane container when carrying dmabuf descriptions (fd and length) over the pipeline/IPA boundary. - The RkISP1 IPA implementation takes advantage of the new simpler and safer (better control over file descriptors) FrameBuffer interface. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: buffer: Add FrameBuffer interfaceNiklas Söderlund
Add a new FrameBuffer class to describe memory used to store frames. This change just adds the new interface, future patches will migrate all parts of libcamera to use this and replace the old Buffer interface. This change needs to specify the const keyword for Plane::length() as to not get Doxygen confused with FrameBuffer::Plane::length added in this change. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: buffer: Add FrameMetadata container for metadata informationNiklas Söderlund
With the introduction of FrameBuffer objects, the metadata information related to captured frames will not be stored directly in the frame buffer object. Add a new FrameMetadata class to hold this information. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: Add FileDescriptor to help pass numerical fds aroundNiklas Söderlund
Add a helper to make it easier to pass file descriptors around. The helper class duplicates the fd which decouples it from the original fd which could be closed by its owner while the new FileDescriptor remains valid. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-12libcamera: request: remove prepare()Niklas Söderlund
The association of buffers to a request can be done directly in addBuffer() instead of when the request is queued to the camera. Keep the check that a request contains buffers by moving it to Camera::queueRequest() where prepare() was previously called. As a bonus we can remove a friend statement in Request. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-07libcamera: bound_method: Rename Bound*Method to BoundMethod*Laurent Pinchart
Most of the bound method classes are named with a BoundMethod prefix, except for BoundMemberMethod and BoundStaticMethod. Rename them to BoundMethodMember and BoundMethodStatic respectively to make the code more coherent. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-07libcamera: bound_method: Propagate method return valueLaurent Pinchart
Propagate the return value of the bound method all the way to the caller of activate(). The value is stored in the arguments pack for indirect invocation. As C++ doesn't allow instantiating a variable of type void, we need to specialize the template class BoundMethodPack for methods returning void. This in turn requires template specialization for the BoundMethodArgs class in order to store the return value in the pack, and for the BoundMemberMethod class to extract the return value from the pack. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-07libcamera: bound_method: Manage BoundMethodPack through std::shared_ptrLaurent Pinchart
The bound method arguments pack will need to be accessed by the method invoker in order to retrieve the method return value when using a blocking connection type. We thus can't delete the pack unconditionally in the bound method target thread. We also can't delete it unconditionally in the invoker's thread, as for queued connections the pack will be used in the target thread after the invoker completes. This shows that ownership of the arguments pack is shared between two contexts. As a result, manage it using std::shared_ptr<>. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-07libcamera: bound_method: Support bindings to non-void methodsLaurent Pinchart
The bound method implementation is restricted to binding to void methods as return values are not supported. This complicates usage of bound methods, as non-void methods used a slots or Object::invokeMethod() targets need to be wrapped in a void method. Simplify this by supporting arbitrary return types and ignoring the return value. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-07libcamera: bound_method: Store method arguments in a classLaurent Pinchart
Create a new BoundMethodPack class to replace the PackType type alias. This will allow adding additional fields to the arguments pack, when adding support for propagation of bound method return values. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-07libcamera: bound_method: Move sequence and generator to BoundMethodBaseLaurent Pinchart
The sequence and generator member types of BoundMethodArgs are not dependent on the template arguments of BoundMethodArgs. To prepare for template specialization of BoundMethodArgs and avoid code duplication, move them to the BoundMethodBase class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-07libcamera: bound_method: Drop unused BoundMethodBase::connectionType()Laurent Pinchart
The BoundMethodBase::connectionType() method isn't used, drop it. While it at make the connectionType_ member private as it is only used by the class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-07libcamera: bound_method: Mark overriden methods with overrideLaurent Pinchart
Mark the activate() and invoke() methods with the override keyword where appropriate. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-07libcamera: object: Use activate() in invokeMethod()Laurent Pinchart
The Object::invokeMethod() implementation duplicates pack creation code from BoundMemberMethod::activate(). Call activate() instead of activatePack() to share code. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-01-03libcamera: camera_manager, pipeline_handler: allow retrieving cameras by ↵Paul Elder
device numbers The V4L2 compatibility layer will need a way to map device numbers to libcamera Camera instances. Expose a method in the camera manager to retrieve Camera instances by devnum. The mapping from device numbers to Camera instances is optionally declared by pipeline handlers when they register cameras with the camera manager. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-01-03libcamera: object: Support reference arguments in invokeMethod()Laurent Pinchart
Invoking a method that takes a reference argument with Object::invokeMethod() results in a compilation error: ../test/object-invoke.cpp:131:11: error: no matching member function for call to 'invokeMethod' object_.invokeMethod(&InvokedObject::methodWithReference, ~~~~~~~~^~~~~~~~~~~~ ../include/libcamera/object.h:33:7: note: candidate template ignored: deduced conflicting types for parameter 'Args' (<const int &> vs. <int>) void invokeMethod(void (T::*func)(Args...), ConnectionType type, Args... args) This is due to the fact that implicit type conversions (from value to reference in this case) takes place after template argument type deduction, during overload resolution. A similar issue would occur if T::func took a long argument and invokeMethod() was called with an in argument. Fix this by specifying to sets of argument types in the invokeMethod() template, one for the arguments to the invoked method, and one for the arguments to invokeMethod() itself. The compiler can then first perform type deduction separately, and implicit conversion in a second step. Reported-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-12-08include: linux: Update Linux headers readme to v5.2Paul Elder
When the Linux headers were updated to v5.2, the version announced in the README was not, so update it. Fixes: 4984973679ec ("include: linux: Update headers to Linux v5.2") Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-11-20ipa: Allow short-circuiting the ipa_context_opsLaurent Pinchart
When an IPA module is loaded without isolation and implements the IPAInterface internally, going through ipa_context_ops is a waste of time. Add an operation to retrieve the IPAInterface, and use it directly in the IPAContextWrapper. For debugging purpose, make it possible to forcing usage of the C API by defining the LIBCAMERA_IPA_FORCE_C_API environment variable. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-11-20ipa: Declare the ipaCreate() function prototypeLaurent Pinchart
IPA modules have to implement a public ipaCreate() function, but its prototype isn't declared in any header file. This allows for modules to get the prototype wrong without being warned by the compiler. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-11-20ipa: Define a plain C APILaurent Pinchart
The C++ objects that are expected to convey data through the IPA API will have associated methods that would require IPAs to link to libcamera. Even though the libcamera license allows this, suppliers of closed-source IPAs may have a different interpretation. To ease their mind and clearly separate vendor code and libcamera code, define a plain C IPA API. The corresponding C objects are stored in plain C structures or have their binary format documented, removing the need for linking to libcamera code on the IPA side. The C API adds three new C structures, ipa_context, ipa_context_ops and ipa_callback_ops. The ipa_context_ops and ipa_callback_ops contain function pointers for all the IPA interface methods and signals, respectively. The ipa_context represents a context of operation for the IPA, and is passed to the IPA oparations. The IPAInterface class is retained as it is easier to use than a plain C API for pipeline handlers, and wrappers will be developed to translate between the C and C++ APIs. Switching to the C API internally will be done in a second step. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-11-20ipa: Pass ControlInfoMap references to IPAInterface::configure()Laurent Pinchart
The IPAInterface::configure() operation receives a map of ControlInfoMap instances. Pass const references instead to avoid copies when not required (the callee can still make manual copies), and to allow for the future serialization layer to keep references to the original object. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-11-20ipa: Define serialized controlsJacopo Mondi
Define data structures to be used during interaction between IPA modules and pipeline handlers to serialize control lists and control info maps. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-11-20libcamera: buffer: Add const accessor to Buffer planesLaurent Pinchart
In order to inspect planes of a const Buffer, add a const accessor. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-11-20libcamera: controls: Store reference to the InfoMapJacopo Mondi
Store a reference to the ControlInfoMap used to create a ControlList and provide an operation to retrieve it. This will be used to implement serialization of ControlList. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-11-20libcamera: controls: Make ControList constructor publicLaurent Pinchart
We need to construct empty ControlList objects to serialization. Make the constructor public. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-11-20libcamera: controls: Make ControlId constructor publicJacopo Mondi
In order to be able to create a ControlId from serialized data, make its constructor public. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-11-20libcamera: controls: Add move constructor to ControlInfoMapLaurent Pinchart
The ControlInfoMap class has a move assignment operator from a plain map, but no corresponding move constructor. Add one. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-11-20libcamera: controls: Index ControlList by unsigned intLaurent Pinchart
In preparation for serialization, index the ControlList by unsigned int. This will allow deserializing a ControlList without requiring external information. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-11-20libcamera: controls: Add operator== and operator!= to ControlRangeLaurent Pinchart
Allow comparision of control ranges by adding the required operators. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-11-19libcamera: camera: Remove explicit stream to buffer map in requestCompleted ↵Niklas Söderlund
signal The stream to buffer map in the requestCompleted signal is taken directly from the request which is part of the same signal. Remove the map as it can be fetched directly from the request. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-11-19libcamera: buffer: Drop friend statementNiklas Söderlund
The Buffer class do not need to friend PipelineHandler, drop it. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-11-19libcamera: buffer: Plane: Drop friend statementNiklas Söderlund
The Plane class do not need to friend Stream, drop it. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-11-19libcamera: buffer: Drop forward declaration of BufferPoolNiklas Söderlund
There is no need to forward declare BufferPool, drop it. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-11-08libcamera: Remove unneeded semicolonsLaurent Pinchart
Comply with the coding style by removing lots of unneeded semicolons. Fix a few other coding style violations on the lines touched by those fixes. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-10-29libcamera: object: Add connection type parameter to invokeMethod()Jacopo Mondi
Allow specifying a different connection type than ConnectionTypeQueued for Object::invokeMethod(). Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-29libcamera: object: Use bound method activePack() for invokeMethod()Laurent Pinchart
The BoundMethodBase::activatePack() and the internal Object::invokeMethod() are duplicate implementation of the same mechanism. Use the former to replace the latter. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-29libcamera: signal: Specify connection type for signalsLaurent Pinchart
Add a connection type parameter to the Signal::connect() method to control signal delivery. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2019-10-29libcamera: bound_method: Store connection type in BoundMethodBaseLaurent Pinchart
Store the connection type in the base BoundMethodBase class to make it accessible to all bound methods. The default type is ConnectionTypeAuto. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>