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path: root/include/libcamera/internal/pipeline_handler.h
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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>
2021-04-03libcamera: 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: 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>
2021-02-21libcamera: camera: Constify controls argument to start()Laurent Pinchart
The ControlList passed to the Camera::start() function isn't modified. Make it const. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2021-02-16libcamera: IPAInterface: Replace C API with the new C++-only APIPaul Elder
Remove everything related to the C API, including ipa_context, ipa_context_wrapper, and IPAInterfaceWrapper. Also remove relevant documentation. ipaCreate() provided by IPA implementations, and createInterface() provided by IPAModule (wrapper around IPA implementation) both now return a C++ object IPAInterface instead of struct ipa_context. Although IPAInterfaceWrapper is the only component of libipa, the skeleton and build files for libipa are retained. After converting the C API to the C++-only API, make all pipeline handlers and IPAs use the new API. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- This is a combination of 21 commits: --- libcamera: IPAModule: Replace ipa_context with IPAInterface With the new IPC infrastructure, we no longer need the C interface as provided by struct ipa_context. Make ipaCreate_() and createInterface() return IPAInterface. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: ipa_context_wrapper: Remove ipa_context_wrapper Since ipa_context has been replaced with custom IPAInterfaces, it is not longer needed. Remove it. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: IPAInterface: remove ipa_context and functions from documentation Remove all the documentation related to ipa_context and the C IPA API, as well as the documentation about the functions in the IPAInterface. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> --- libcamera: IPAInterface: Remove all functions from IPAInterface Now that all the functions in the IPA interface are defined in the data definition file and a specialized IPAInterface is generated per pipeline handler, remove all the functions from the base IPAInterface. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: IPAInterface: make ipaCreate return IPAInterface With the new IPC infrastructure, we no longer need the C interface as provided by struct ipa_context. Make ipaCreate return IPAinterface. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> --- ipa: remove IPAInterfaceWrapper As every pipeline has its own proxy, IPAInterfaceWrapper is no longer necessary. Remove it. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Acked-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> --- libcamera: IPAProxy: Remove stop() override Since stop() is part of the IPA interface, and the IPA interface is now generated based on the data definition file per pipeline, this no longer needs to be overrided by the base IPAProxy. Remove it. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: IPAProxy, IPAManager: Switch to one-proxy-per-pipeline scheme IPAProxy is changed in two major ways: - Every pipeline has its own proxy, to support each pipeline's IPA interface - IPAProxy implementations always encapsulate IPA modules, and switch internally for isolation or threaded The IPAProxy registration mechanism is removed, as each pipeline will have its own proxy, so the pipeline can pass the specialized class name of the IPAProxy to the IPAManager for construction. IPAManager is changed accordingly to support these changes: - createIPA is a template function that takes an IPAProxy class, and always returns an IPAProxy - IPAManager no longer decides on isolation, and simply creates an IPAProxy instance while passing the isolation flag Consequently, the old IPAProxy classes (IPAProxyThread and IPAProxyLinux) are removed. The IPAInterfaceTest is updated to use the new IPAManager interface, and to construct a ProcessManager as no single global instance is created anymore. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> --- libcamera: IPAProxy: Add isolate parameter to create() Since IPAProxy implementations now always encapsulate IPA modules, add a parameter to create() to signal if the proxy should isolate the IPA or not. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: IPAManager: Fetch IPAProxy corresponding to pipeline Now that each pipeline handler has its own IPAProxy implementation, make the IPAManager fetch the IPAProxy based on the pipeline handler name. Also, since the IPAProxy is used regardless of isolation or no isolation, remove the isolation check from the proxy selection. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> --- libcamera: IPAManager: add isolation flag to proxy creation When the IPA proxy is created, it needs to know whether to isolate or not. Feed the flag at creation of the IPA proxy. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: IPAManager: Make createIPA return proxy directly Since every pipeline knows the type of the proxy that it needs, and since all IPAs are to be wrapped in a proxy, IPAManager no longer needs to search in the factory list to fetch the proxy factory to construct a factory. Instead, we define createIPA as a template function, and the pipeline handler can declare the proxy type when it calls createIPA. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: IPAProxy: Remove registration mechanism Implementations of IPA proxies use a registration mechanism to register themselves with the main IPA proxy factory. This registration declares static objects, causing a risk of things being constructed before the proper libcamera facilities are ready. Since each pipeline handler has its own IPA proxy and knows the type, it isn't necessary to have a proxy factory. Remove it to alleviate the risk of early construction. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: proxy: Remove IPAProxyLinux and IPAProxyThread We have now changed the proxy from per-IPC mechanism to per-pipeline. The per-IPC mechanism proxies are thus no longer needed; remove them. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- tests: ipa_interface_test: Update to use new createIPA Update the IPA interface test to use the new createIPA function from IPAManager. Also create an instance of ProcessManager, as no single global instance is created automatically anymore. Update meson.build to to depend on the generated IPA interface headers. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: PipelineHandler: Remove IPA from base class Since pipeline handlers now have their own IPA interface types, it can no longer be defined in the base class, and each pipeline handler implementation must declare it and its type themselves. Remove it from the base class. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- ipa: raspberrypi: Add mojom data definition file Add a mojom data definition for raspberrypi pipeline handler's IPAs. This simplifies the API between the raspberrypi pipeline handler and the IPA, and is not a direct translation of what was used before with IPAOperationData. Also move the enums from raspberrypi.h to raspberrypi.mojom Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: pipeline, ipa: raspberrypi: Use new data definition Now that we can generate custom functions and data structures with mojo, switch the raspberrypi pipeline handler and IPA to use the custom data structures as defined in the mojom data definition file. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: pipeline, ipa: vimc: Support the new IPC mechanism Add support to vimc pipeline handler and IPA for the new IPC mechanism. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> --- libcamera: pipeline, ipa: rkisp1: Support the new IPC mechanism Add support to the rkisp1 pipeline handler and IPA for the new IPC mechanism. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- libcamera: pipeline, ipa: ipu3: Support the new IPC mechanism Add support to ipu3 pipeline handler and IPA for the new IPC mechanism. [Original version] Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> [Fixed commit message and small changes] Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-02-12libcamera: Utilise LIBCAMERA_DISABLE_COPYKieran Bingham
Replace existing use cases where the copy constructor and copy assignment operator are deleted with the LIBCAMERA_DISABLE_COPY statement Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-12-28libcamera: pipeline_handler: Remove Camera pointer from CameraDataNiklas Söderlund
There are no users left of this field, drop it. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-12-28libcamera: pipeline_handler: Remove Camera argument from request handlingNiklas Söderlund
There is no need to pass the Camera pointer to queueRequest(), completeBuffer() and completeRequest() as the Request also passed contains the same information. Remove the Camera argument to avoid situations where the information in the Request and the argument differ. There is no functional change and no public API change as the interface is only used between the Camera and PipelineHandler. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-12-08libcamera: pipeline: Pass libcamera controls into pipeline_handler::start()Naushir Patuck
Applications now have the ability to pass in controls that need to be applied on startup, rather than doing it through Request where there might be some frames of delay in getting the controls applied. This commit adds the ability to pass in a set of libcamera controls into the pipeline handlers through the pipeline_handler::start() method. These controls are provided by the application through the camera::start() public API. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Tested-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>
2020-10-23libcamera: Declare empty virtual destructors as defaultedLaurent Pinchart
The base class of polymorphic classes is required to declare a destructor. Several of these are empty, and can thus be declared as defaulted. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <email@uajain.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-08-16libcamera: pipeline_handler: Mark controls() and properties() as const ↵Niklas Söderlund
operations Reading the controls and properties does not modify the pipeline's state and can be marked as const operations. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-08-16libcamera: pipeline_handler: Add const version of cameraData()Niklas Söderlund
Add a version of cameraData() that returns a const pointer and mark it as a const operation. The assert in the non-const version of the function already enforces that a std::map::at() operation would always succeed so there is no change in operation from the non-const version. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-06-09libcamera: CameraManager, PipelineHandler: Automatically map devnums to CameraPaul Elder
The V4L2 compatibility layer uses devnum to match video device nodes to libcamera Cameras. Some pipeline handlers don't report a devnum for their camera, which prevents the V4L2 compatibility layer from matching video device nodes to these cameras. To fix this, we first allow the camera manager to map multiple devnums to a camera. Next, we walk the media device and entity list and tell the camera manager to map every one of these devnums that is a video capture node to the camera. Since we decided that all video capture nodes that belong to a camera can be opened via the V4L2 compatibility layer to map to that camera, it would cause confusion for users if some pipeline handlers decided that only specific device nodes would map to the camera. To prevent this confusion, remove the ability for pipeline handlers to declare their own devnum-to-camera mapping. The only pipeline handler that declares the devnum mapping is the UVC pipeline handler, so remove the devnum there. We considered walking the media entity list and taking the devnum from just the one with the default flag set, but we found that some drivers (eg. vimc) don't set this flag for any entity. Instead, we take all the video capture nodes (entities with the sink pad flag set). Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-06-06libcamera: Rename header guards for internal headersLaurent Pinchart
With the internal headers now in include/libcamera/internal/, we may have identically named headers in include/libcamera/. Their header guards would clash. Rename the header guards of internal headers to prevent any issue. 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>
2020-05-16libcamera: Move internal headers to include/libcamera/internal/Laurent Pinchart
The libcamera internal headers are located in src/libcamera/include/. The directory is added to the compiler headers search path with a meson include_directories() directive, and internal headers are included with (e.g. for the internal semaphore.h header) #include "semaphore.h" All was well, until libcxx decided to implement the C++20 synchronization library. The __threading_support header gained a #include <semaphore.h> to include the pthread's semaphore support. As include_directories() adds src/libcamera/include/ to the compiler search path with -I, the internal semaphore.h is included instead of the pthread version. Needless to say, the compiler isn't happy. Three options have been considered to fix this issue: - Use -iquote instead of -I. The -iquote option instructs gcc to only consider the header search path for headers included with the "" version. Meson unfortunately doesn't support this option. - Rename the internal semaphore.h header. This was deemed to be the beginning of a long whack-a-mole game, where namespace clashes with system libraries would appear over time (possibly dependent on particular system configurations) and would need to be constantly fixed. - Move the internal headers to another directory to create a unique namespace through path components. This causes lots of churn in all the existing source files through the all project. The first option would be best, but isn't available to us due to missing support in meson. Even if -iquote support was added, we would need to fix the problem before a new version of meson containing the required support would be released. The third option is thus the only practical solution available. Bite the bullet, and do it, moving headers to include/libcamera/internal/. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org>