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The CameraWorker class purpose was to handle acquire fences for incoming
capture requests directed to libcamera.
Now that fences are handled by the core library, it is not required to
handle them in the HAL and the CameraWorker and CaptureRequest classes
can be dropped.
Update the core in CameraDevice class accordingly to queue Requests
directly to the libcamera::Camera and set the release_fence to the
value of the FrameBuffer::fence() for streams of type ::Direct.
While at it make CameraRequest::StreamBuffer::fence a UniqueFD to ease
the management of the fences file descriptor values.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Use Camera3RequestDescriptor as cookie for the Capture Request.
The cookie is used to lookup descriptors map in
CameraDevice::requestComplete(). The map will be transformed to a
queue in subsequent commit.
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Usually .cpp files are equipped with using namespace libcamera;
Hence, it is unnecessary mentioning the explicit namespace of
libcamera at certain places.
While at it, a small typo in a comment was noticed and fixed as
part of this patch.
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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The standard C library close() and lseek() functions require inclusion
of the unistd.h header. Include it explicitly where needed instead of
relying on indirect inclusion.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Tested-by: Paul Elder <paul.elder@ideasonboard.com>
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When stopping the camera worker, queuedRequest() calls may have queued
asynchronous function invocation messages to the worker thread, and some
of those messages may not have been processed yet. The messages will
stay in the thread's queue until the camera worker is restarted (when
the camera service will start a new capture session). At that point,
they will be dispatched, which will cause a crash due to the
CaptureRequest passed to processRequest() having been deleted by
CameraDevice::stop() calling descriptors_.clear().
Fix this by forcing dispatching of all function invocation messages when
stopping the camera worker thread. Note that this is inherently racy, as
more queueRequest() calls may arrive from the camera service while we're
stopping. This race condition will be addressed by a subsequent patch
series.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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CameraDevice creates Camera3RequestDescriptor in
processCaptureRequest() and disallocates in requestComplete().
Camera3RequestDescriptor can never be destroyed if
requestComplete() is never called. This avoid the memory
leakage by storing them in map CameraRequestDescriptor.
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>
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The end semicolons with LOG_DECLARE_CATEGORY and
LOG_DEFINE_CATEGORY are unnecessary.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The Android camera framework provides for each buffer part of a capture
request an acquisition fence the camera HAL is supposed to wait on
before using the buffer. As the libcamera HAL runs in the camera service
thread, it is not possible to perform a synchronous wait there.
Introduce a CameraWorker class that runs an internal thread to wait
on a set of fences before queueing a capture request to the
libcamera::Camera.
Fences completion is handled through a simple poll, similar in
implementation to the sync_wait() function provided by libdrm.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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