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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>
2019-08-15hal: Fix comparison of unsigned integer < 0Laurent Pinchart
The CameraHalManager::getCameraInfo() validates the camera id it receives from the camera service, and in doing so generates a compiler error with gcc as the id is an unsigned integer and can never be negative: ../src/android/camera_hal_manager.cpp: In member function ‘CameraProxy* CameraHalManager::open(unsigned int, const hw_module_t*)’: ../src/android/camera_hal_manager.cpp:89:9: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits] if (id < 0 || id >= numCameras()) { Fix it by removing the unneeded comparison. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-12hal: Fix comparison of integers of different signsLaurent Pinchart
The CameraHalManager::getCameraInfo() validates the camera id it receives from the camera service, and in doing so compares it with an unsigned integer, generating a compiler error: src/android/camera_hal_manager.cpp:121:9: error: comparison of integers of different signs: 'int' and 'unsigned int' [-Werror,-Wsign-compare] if (id >= numCameras() || id < 0) { ~~ ^ ~~~~~~~~~~~~ Fix this by turning the id into an unsigned int, as camera ids can't be negative. If a negative id is received from the camera service it will be converted to a large unsigned integer that will fail the comparison with numCameras(). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-12android: hal: Add Camera3 HALJacopo Mondi
Add libcamera Android Camera HALv3 implementation. The initial camera HAL implementation supports the LIMITED hardware level and uses statically defined metadata and camera characteristics. Add a build option named 'android' and adjust the build system to selectively compile the Android camera HAL and link it against the required Android libraries. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2019-08-12android: metadata: Add SPDX tagJacopo Mondi
Add SPDX tag to the android metadata library files licensed under Apache-2.0. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2019-08-12android: Add camera metadata libraryJacopo Mondi
Import the Android camera metadata library from the ChromiumOS build system. The camera metadata library has been copied from https://chromium.googlesource.com/chromiumos/platform2 at revision 9e65ddd2c496e712f005ada9715decd2ff8e4a03 The original path in the Cros platform2/ repository is: camera/android/libcamera_metadata/src Create a new build target for the camera metadata library to create a static library to link against libcamera. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>