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2020-07-24android: camera_device: Remove scaler format information from Camera3FormatNiklas Söderlund
The scaler format information was only used for the ANDROID_SCALER_AVAILABLE_FORMATS tag which is deprecated and removed. As it has no other users remove 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>
2020-07-24android: camera_device: Use HAL_PIXEL_FORMAT_* defines for formatsNiklas Söderlund
The documentation says the HAL_PIXEL_FORMAT_* defines shall be used for formats instead of ANDROID_SCALER_AVAILABLE_FORMATS_* for the ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS and ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS tags. This have worked in the past as the numerical value of the two sets are the same for the formats supported. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-24android: camera_device: Remove ANDROID_SCALER_AVAILABLE_FORMATSNiklas Söderlund
According to the documentation the tag ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS deprecates the ANDROID_SCALER_AVAILABLE_FORMATS tag. As the HAL implements both tags remove the deprecated one. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-07-07android: camera_device: Remove single buffer restriction.Kieran Bingham
A capture request is no longer limited to a single output buffer. Remove the limitation, but (for now) keep the check to ensure that at least one buffer is always provided. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-07-07android: camera_device: Add buffers for each stream to RequestsKieran Bingham
Construct a FrameBuffer for every buffer given in the camera3Request and add it to the libcamera Request on the appropriate stream. The correct stream is obtained from the private data of the camera3_stream associated with the camera3_buffer. Comments regarding supporting only one buffer are now removed, and FrameBuffers have their lifetime tracked in the Camera3RequestDescriptor to ensure they are released when the Request is completed. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-07-06android: camera_device: Maintain a vector of CameraStreamKieran Bingham
Introduce a vector storing a CameraStream to track and maintain state between an Android stream (camera3_stream_t) and a libcamera Stream. Only the index of the libcamera stream is stored, to facilitate identifying the correct index for both the StreamConfiguration and Stream vectors. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-07-06android: camera_device: Create the Request and Camera3RequestDescriptor togetherKieran Bingham
Move the construction of the Request higher in the code flow so that multiple buffers and streams can be added where required. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-07-06android: camera_device: Simplify FrameBuffer construction from a buffer_handle_tKieran Bingham
Move the code which constructs a FrameBuffer from the Android buffer handle to it's own function to simplify the code flow and readability. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-07-06android: camera_device: Support multiple stream configurationsKieran Bingham
Create an initial Camera Configuration using an empty role set, and populate the StreamConfigurations manually from each of the streams given by the Android camera3_stream_configuration_t stream_list. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-07-06android: camera_device: Provide a toPixelFormat helperKieran Bingham
Rather than converting pixelformats through the map, and then dereferencing the iterator later, create a helper to explicitly return a PixelFormat type. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2020-06-18libcamera: Replace explicit DRM FourCCs with libcamera formatsLaurent Pinchart
Use the new pixel format constants to replace usage of macros from drm_fourcc.h. 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>
2020-06-10android: camera_device: Use std::make_tuple()Laurent Pinchart
Until N4387 (https://wg21.link/N4387, applied as a defect report for C++11), a function could not return a tuple using copy-list-initialization. This affects gcc-5 that was released before N4387 was integrated, and causes a compilation error: ../../src/android/camera_device.cpp: In member function ‘std::tuple<unsigned int, unsigned int> CameraDevice::calculateStaticMetadataSize()’: ../../src/android/camera_device.cpp:391:32: error: converting to ‘std::tuple<unsigned int, unsigned int>’ from initializer list would use explicit constructor ‘constexpr std::tuple<_T1, _T2>::tuple(_U1&&, _U2&&) [with _U1 = unsigned int&; _U2 = unsigned int&; <template-parameter-2-3> = void; _T1 = unsigned int; _T2 = unsigned int]’ return { numEntries, byteSize }; Fix it by using std::make_tuple(). Fixes: a80d38109f65 ("android: camera_device: Calculate metadata size") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-06-08android: camera_device: Translate Android formatJacopo Mondi
Translate the Android format code to the libcamera format code at stream configuration time, using the translation map built at camera device initialization time. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-06-08android: camera_device: Replace hardcoded stream configurationJacopo Mondi
Replace the hardcoded stream configuration map with the information collected at CameraDevice initialization time. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-06-08android: camera_device: Calculate metadata sizeJacopo Mondi
As we move to have more and more dynamically generated static metadata entries, the size of the metadata buffer has to be calculated dynamically inspecting the information collected from the camera. Provide a method to perform metadata buffers size calculation and use it when generating camera static metadata. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-06-08android: camera_device: Initialize stream configurationJacopo Mondi
Initialize the stream configuration map by applying the Android Camera3 requested resolutions and formats to the libcamera Camera device. For each required format test a list of required and optional resolutions, construct a map to translate from Android format to the libcamera formats and store the available stream configuration to be provided to the Android framework through static metadata. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-06-04android: hal_manager: Do not hardcode propertiesJacopo Mondi
The CameraHalManager::getCameraInfo() method hardcodes the camera facing side and orientation (which corresponds, confusingly, to libcamera's location and rotation properties). Instead of hard-coding the values based on the camera id, inspect the libcamera properties that report the camera location and rotation in a new initialize() method, and use them to report the android camera info and to populate the static metadata buffer. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-06-04android: hal_manager: Report supported API versionJacopo Mondi
Report the supported API version in the camera_info structure provided to the framework. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-06-04android: camera_device: Provide log prefixJacopo Mondi
Make the CameraDevice a Loggable subclass and provide a logPrefix() method to identify which camera the log output refers to. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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>
2020-05-13licenses: License all meson files under CC0-1.0Laurent Pinchart
In an attempt to clarify the license terms of all files in the libcamera project, the build system files deserve particular attention. While they describe how the binaries are created, they are not themselves transformed into any part of binary distributions of the software, and thus don't influence the copyright on the binary packages. They are however subject to copyright, and thus influence the distribution terms of the source packages. Most of the meson.build files would not meet the threshold of originality criteria required for copyright protection. Some of the more complex meson.build files may be eligible for copyright protection. To avoid any ambiguity and uncertainty, state our intent to not assert copyrights on the build system files by putting them in the public domain with the CC0-1.0 license. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Giulio Benetti <giulio.benetti@micronovasrl.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org> Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Naushir Patuck <naush@raspberrypi.com> Acked-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Acked-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Acked-by: Paul Elder <paul.elder@ideasonboard.com> Acked-by: Show Liu <show.liu@linaro.org>
2020-05-10android: hal: License camera3_hal.cpp as LGPL-2.1-or-laterLaurent Pinchart
The camera3_hal.cpp is incorrectly licensed as GPL-2.0-or-later, instead of LGPL-2.1-or-later as the rest of the HAL implementation. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org>
2020-02-14android: camera_device: Use Camera properties for static MetadataJacopo Mondi
Construct two example static metadata to be reported to the Android framework using the properties reported by the Camera. Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-02-13android: Remove internal threadLaurent Pinchart
Now that libcamera creates threads internally and doesn't rely on an application-provided event loop, remove the thread from the Android Camera HAL layer. The CameraProxy class becomes meaningless, remove it and communicate directly from the CameraHalManager to the CameraDevice. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Jacopo Mondi <jacopo@jmondi.org>
2020-01-14libcamera: Switch from utils::make_unique to std::make_uniqueLaurent Pinchart
Now that we're using C++-14, drop utils::make_unique for std::make_unique. 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>
2020-01-12libcamera: 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: 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>
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>
2019-10-30android: Replace ThreadRPC with blocking method callJacopo Mondi
Use the newly introduced InvocationTypeBlocking message type to replace the blocking message delivery implemented with the ThreadRPC class in the Android camera HAL. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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>
2019-10-15libcamera: utils: Add hex stream output helperLaurent Pinchart
Add a utils::hex() function that simplifies writing hexadecimal values to an ostream. The function handles the '0x' prefix, the field width and the fill character automatically. Use it through the libcamera code base, and add a test. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-09-05android: camera_device: Report available keysJacopo Mondi
Report the list of available static metadata tags (characteristicKeys), of supported controls (requestKeys) and produced metadata (resultKeys) in the static metadata pack. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-09-05android: camera_device: Fix handling of request templateJacopo Mondi
According to the Android camera HALv3 documentation, the request template metadata pack should not be modified after it is returned to the camera stack from the HAL. Currently, the same metadata pack is used for all types of template request, without updating the capture intent there contained to match the requested template type, as correctly reported by the cros_camera_test test application. In order to avoid modifying the single request template already returned to the camera stack in order to update the capture intent it contains, create a map that associates a dedicated template to each supported capture type. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-09-05android: camera_device: Use the new CameraMetadata helper classLaurent Pinchart
Simplify the implementation of metadata handling in the CameraDevice class by using the new CameraMetadata helper class. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-09-05android: Add CameraMetadata helper classLaurent Pinchart
The new CameraMetadata helper class wraps the Android camera_metadata_t to simplify its usage. Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-09-05android: camera_device: Use precise sizes for request templateJacopo Mondi
Use more opportune sizes, manually calculated, for the generated request template. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-09-05android: camera_device: Add missing tags in request templateJacopo Mondi
Add two missing tags from the request template generated by the HAL. The tags are reported as missing by the cros_camera_test tool. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-09-05android: camera_device: Remove tags from request templateJacopo Mondi
Remove metadata tags wrongly added to the request template constructed by the libcamera HAL. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-09-05android: camera_device: Use correct sizes for static metadataJacopo Mondi
Use more opportune sizes for the static metadata pack, and for the dynamic metadata sizes which where wrongly set to use the ones defined for the static pack. Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-09-05android: camera_device: Add missing static metadataJacopo Mondi
Add all the static metadata keys part of the BC (backward compatible) metadata group, which represent the minimum requirement for devices supporting the LIMITED hardware level. Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-19android: camera_device: Store static metadata in cacheLaurent Pinchart
The CameraDevice class has a mechanism to cache static metadata, but doesn't use it. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-19libcamera: camera_manager: Construct CameraManager instances manuallyLaurent Pinchart
The CameraManager class is not supposed to be instantiated multiple times, which led to a singleton implementation. This requires a global instance of the CameraManager, which is destroyed when the global destructors are executed. Relying on global instances causes issues with cleanup, as the order in which the global destructors are run can't be controlled. In particular, the Android camera HAL implementation ends up destroying the CameraHalManager after the CameraManager, which leads to use-after-free problems. To solve this, remove the CameraManager::instance() method and make the CameraManager class instantiable directly. Multiple instances are still not allowed, and this is enforced by storing the instance pointer internally to be checked when an instance is created. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-19android: camera_hal_manager: Clean up resources when terminatingLaurent Pinchart
The CameraHalManager starts the libcamera CameraManager and creates CameraProxy instances for each camera in the system. Clean up those resources when the CameraHalManager terminates. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-19android: camera_hal_manager: Remove unused close() methodLaurent Pinchart
The CameraHalManager::close() method isn't used, remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-19android: camera_hal_manager: Stop thread when destroyingLaurent Pinchart
The CameraHalManager starts a thread that is never stopped. This leads to the thread being destroyed while running, which causes a crash. Fix this by stopping the thread and waiting for it to finish in the destructor of the CameraHalManager. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-19android: Pass Camera shared pointer to CameraProxy by const referenceLaurent Pinchart
The CameraProxy is constructed with a Camera instance passed through a shared pointer. It forwards it to the CameraDevice constructor, which takes a reference used for the sole purpose of making an internal copy of the shared pointer. Both constructors can thus take a const reference instead of a value or a mutable reference. This optimises the constructors slightly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-19android: Simplify thread RPC with Object::invokeMethod()Laurent Pinchart
Replace the manual implementation of asynchronous method invocation through a custom message with Object::invokeMethod(). This simplifies the thread RPC implementation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>