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2021-03-03android: camera_buffer: Implement libcamera::ExtensibleJacopo Mondi
In order to prepare to support more memory backends, make the CameraBuffer class implement the PIMPL (pointer-to-implementation) pattern by inheriting from the libcamera::Extensible class. Temporary maintain libcamera::MappedBuffer as the CameraBuffer base class to maintain compatibility of the CameraStream::process() interface that requires a MappedBuffer * as second argument and will be converted to use a CameraBuffer in the next patch. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-03-03android: camera_buffer: Drop 'const' from buffer_handle_tJacopo Mondi
The buffer_handle_t type is defined as 'const native_handle_t*'. Drop the 'const' specifier from the parameter of the CameraBuffer class constructor and in the Android generic memory backend. Also rename 'camera3buffer' in 'camera3Buffer' to comply with the coding style guidelines. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2021-03-03android: Introduce CameraBuffer interfaceJacopo Mondi
In order to provide support for different memory backends, move the MappedCamera3Buffer class definition outside of the CameraDevice class to its own file and rename it in CameraBuffer. The interface defined in camera_buffer.h will be implemented by different backends that will be placed in the src/android/mm subdirectory. Provide a first implementation for the 'generic android' backend which matches the existing one. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>