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The fence and mapped-buffer tests both use the VIMC test device and must
not be run at the same time.
Split these tests to a new group to force their isolation from running
in parallel.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The libcamerasrc gstreamer component does seem to not allow stream resolutions
that are not advertised by PipelineHandler::generateConfiguration(). This has
been raised in a bug report [1].
Fix this behavior by advertising a SizeRange from the minimum ISP resolution, up
to the sensor resolution from PipelineHandlerRPi::generateConfiguration().
[1] https://bugs.libcamera.org/show_bug.cgi?id=105
Fixes: f16acb275c85 ("pipeline: raspberrypi: Restrict the advertised maximum ISP output resolution")
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Now that the sensor is defined to list mbus codes using its native
(untransformed) Bayer order, the method of obtaining it can be
simplified. We don't have to try and reset the flips, we just use the
value directly from the sensor.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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We clear the V4L2_CID_HFLIP and V4L2_CID_VFLIP controls immediately
after opening the camera device. This means the camera's Bayer format
and mbus codes will be in the sensor's "native" order, and we document
this to be the case so that it can be relied upon.
Clearing the flips is harmless where sensor flips do not affect the
Bayer order.
This also fixes a bug in the Raspberry Pi pipeline handler where the
native Bayer order was being computed wrongly, but the new behaviour
here will be helpful to other pipeline handlers too. A subsequent
commit will tidy up the Raspberry Pi pipeline handler in this area as
it can now be simplified.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Fixes: 83a512816189 (pipeline: raspberrypi: Convert the pipeline handler to use media controller)
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Add a -v/--verbose argument to the v4l2_compat test to print the output
of v4l2-compliance, even when the test passes. This can be useful when
debugging.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Debug messages in V4L2CameraProxy print the numerical file descriptor,
which isn't very human-friendly. Replace it with the V4L2CameraFile
description that includes the full path. While at it, refactor the
messages to use __func__ instead of manually copying function names.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The mmaps_ map stores a pointer to the V4L2CameraProxy to avoid
increasing the reference count on the V4L2CameraFile shared pointer
needlessly. While this provides a small optimization, it prevents
accessing the V4L2CameraFile from the munmap() function which doesn't
take an fd as argument.
To prepare for improved debugging that will require access to
V4L2CameraFile in munmap(), store the V4L2CameraFile pointer in mmaps_.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The freeBuffers() function is only called from vidioc_reqbufs(), which
already logs a trace message. Remove the duplicate.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Create a string that describe the file from the path and file
descriptor. This will be used in log messages to clearly identify which
file an operation is related to.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The V4L2 compat layer prints debug messages that mention the file
descriptor of the video device, but no message that links the device
path to the file descriptor. Fix it by adding a debug message in
openat().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The V4L2 compatibility layer doesn't support any of the VIDIOC_REQBUFS
flags. They are all correctly ignored, but also need to be zeroed
before returning to indicate that they haven't been taken into account.
This fixes a v4l2-compliance failure:
Buffer ioctls (Input 0):
fail: ../../utils/v4l2-compliance/v4l2-test-buffers.cpp(682): coherent
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: FAIL
Fixes: aa4533639971 ("include: linux: Update kernel headers to version v5.16-rc7")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Vedant Paranjape <vedantparanjape160201@gmail.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Switch the "no buffers available" log message from Info to Debug so that it does
not get output by default.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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If the sensor exposes the V4L2_CID_NOTIFY_GAINS control, assume it
means the sensor wants to be told the latest colour gains.
We store whether the control exists and if so its default value, to
save us checking for it on every frame.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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V4L2Device::setControl and V4L2Device::updateControl are both updated
to handle ControlTypeInteger32 array controls.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Updated kernel headers to v5.16-rc7 using
utils/update-kernel-headers.sh and re-instating libcamera
local modifications.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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To support DMABUF as one of the memory buffer, we need to implement
EXPBUF in the v4l2 compat layer.
This patch implements vidioc_expbuf as one of the supported ioctls.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=89
Signed-off-by: Vedant Paranjape <vedantparanjape160201@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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This change will allow the pipeline handler to enumerate and control Video
Mux or Bridge devices that may be attached between sensors and a particular
Unicam instance. Cascaded mux or bridge devices are also handled.
A new member function RPiCameraData::enumerateVideoDevices(), called from
PipelineHandlerRPi::registerCamera(), is used to identify and open all mux and
bridge subdevices present in the sensor -> Unicam link.
Relevant links are enabled/disabled and pad formats correctly set in
PipelineHandlerRPi::configure() before the camera is started.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Enumerate the sensor device entities in PipelineHandlerRPi::match() and loop
over PipelineHandlerRPi::registerCamera() for each sensor found. This will
allow the pipeline handler to register multiple cameras attached to a single
Unicam instance with a Video Mux device.
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The pkg-config version should not be hardcoded, and it should match the
version of the library, ideally with point releases where possible.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Building the libcamera Android layer currently makes use of features
from meson 0.55. The core libcamera framework in the default configuration
without android enabled uses the 'summary' feature available in 0.53, and
is the lowest supportable meson version if the Android HAL is excluded.
Ubuntu 20.04 LTS currently provides meson 0.53 and represents an
acceptable minimum version to support. Platforms utilising the Android
component will have full control over their build environment and can
ensure that they provide a more recent version of meson.
Reduce the supported meson version for the project to 0.53 to facilitate
building on more distributions without having to manually update the
meson package.
Meson will output a warning that features not available in 0.53 are used
if the Android HAL is enabled. This is considered as an acceptable
middleground to improve the experience on the latest Ubuntu LTS, until
22.04 LTS is released and provides a newer meson version.
Signed-off-by: Christian Rauch <Rauch.Christian@gmx.de>
[Kieran: Add comment about the android meson requirements]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The PipelineHandler lock() and unlock() functions are documented as
thread-safe, but they're not. Fix them using a mutex.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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The MediaDevice lock is meant to prevent concurrent usage of multiple
cameras from the same pipeline handlers. As media devices are acquired
by pipeline handlers, we can't have multiple pipeline handlers trying to
lock the same media device. The recursive locking detection can thus be
moved to the pipeline handler. This simplifies the media device
implementation that now implements true lock semantics, and prepares for
support of concurrent camera usage.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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The ASSERT() macro integrates with the logging infrastructure, use it to
replace assert().
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The intel-ipu3.h header has moved in the v5.14 kernel. Update the kernel
headers update script accordingly.
While at it, add a missing directory separator to fix a failure when the
path to the kernel tree doesn't end with a /.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Fix typos.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
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 Entity::link member has an ambiguous name. Rename it to sourceLink
to clarify that it stores the link on the source pad.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The initial commit a146cdbf20cb ("readme: Provide build requirements")
used tabs for all the dependencies. The first time a line was edited in
commit 2de78434ca71 ("meson: Bump required version to 0.47") tabs were
not kept. This makes them all consistent.
Signed-off-by: Johann Koenig <johannkoenig@google.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>
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Increase the initial size of the result metadata, as we will be adding
more entries in the near future.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The type of elements of the capability vector that is set in the static
metadata must be uint8_t. The enum will not suffice, as it is int32_t.
Fix this.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Add setEntry() helper, that automatically detects if updateEntry() or
addEntry() should be used.
Note that updateEntry() will fail if the entry was not yet added, and
addEntry() will fail is the entry was already added. They are silent
failures that cause unexpected values to find their way into the android
metadata instance.
Previously this helper was not necessary, as (with respect to the
current use case) the preview template generator would always add a key
so the other template generators that used the preview template as
boilerplate could reliably use updateEntry(). The preview template
generator will soon decide based on capabilities whether or not to add
keys, so the other template generators need a helper to decide whether
to use updateEntry() or addEntry().
For now only implement it for enums and arithmetic values, as they will
mainly be used in populating templates.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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A libcamera camera that supports the manual sensor capability also
satisfies all the requirements for the read sensor settings capability.
Set it.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Print messages when some feature is missing that causes hardware level
FULL to not be supported.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The gen-tp-header script does not have execute permissions set on the
file.
Add the execute permission to ensure that meson runs this script
consistently in the same configuration as other scripts, without
invoking python itself separately.
Signed-off-by: Brian Olson <icic@bolson.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The build/ and patches/ directories are listed in .gitignore as they're
commonly used respectively as the meson build directory (this is the
directory name used in README.rst) and as a local patches store (this
usage pattern isn't official though, and may need to be reconsidered if
not used anymore). As those two directories are supposed to be at the
root of the source tree, restrict the corresponding .gitignore patterns
to avoid matching other locations.
While at it, sort the entries alphabetically, with the absolute path
entries separate from the entries that match any location within the
source tree.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The unit test associates a fence with a framebuffer and makes sure
the fence is correctly signalled.
Once a fence is correctly signalled, it is released by the core, and the
underlying file descriptor closed.
The unit test however tries to write on the fence file descriptor every
time the designated Request is queued, an error which is now visible
as the return value of the fence signalling write() is checked.
Fix that by associating a fence with a framebuffer only once.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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The ::write() function used to signal a framebuffer fence in the unit
test is marked with the 'warn_unused_result'.
When building in debugoptimized mode not checking for the return
value causes issues at build time:
/test/fence.cpp:254:2: error: ignoring return value of function declared with 'warn_unused_result' attribute
Fix that by checking the ::write() return value and emitting an
error message in case the write fails.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reported-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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The Raspberry Pi pipeline handler now sets color spaces correctly.
In generateConfiguration() it sets them to reasonable default values
based on the stream role.
validate() now calls validateColorSpaces() to ensure that the
requested color spaces are sensible, before proceeding to check what
the hardware can deliver.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
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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This function forces raw streams to have the "raw" color space, and
also optionally makes all non-raw output streams to share the same
color space as some platforms may require this.
When sharing color spaces we take the shared value to be the one from
the largest of these streams. This choice is ultimately arbitrary, but
can be appropriate if smaller output streams are used for image
analysis rather than human consumption, when the precise colours may
be less important.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
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 ColorSpace from the StreamConfiguration is now handled
appropriately in the V4L2Subdevice.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
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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This adds a ColorSpace field to the V4L2SubdeviceFormat so that we can
set and request particular color spaces from V4L2.
This commit simply adds the field and fixes some occurrences of brace
initializers that would otherwise be broken. A subsequent commit will
pass and retrieve the value correctly to/from V4l2 itself.
Signed-off-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>
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The ColorSpace from the StreamConfiguration is now handled
appropriately in the V4L2VideoDevice.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
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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Add functions to the V4L2Device class to convert to and from
libcamera ColorSpace.
These functions are added to the base V4L2Device class so that they can
be shared both by the video device class and subdevices.
With the ColorSpace class, the color space and related other fields
are stored together, corresponding to a number of fields in the
various different V4L2 format structures. Template functions are
therefore a convenient implementation, and we must explicitly
instantiate the templates that will be needed.
Note that unset color spaces are converted to requests for the
device's "default" color space.
Signed-off-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>
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This is so that applications can choose appropriate color spaces which
will then be passed down to the V4L2 devices.
The ColorSpace field is actually optional. If it is not set you will
get the camera's default color space.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.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>
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This class represents a color space by defining its color primaries,
the transfer (gamma) function it uses, the YCbCr encoding and whether
the output is full or limited range.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.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>
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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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Add a test for the Fence class by testing a Fence failure case, and
by testing a successfully signalled fence capture cycle.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Before queueing a request to the device, any synchronization fence from
the Request framebuffers has to be waited on.
Connect the Request::Private::prepared signal to the function that
queues requests to the hardware and call Request::Private::prepare().
When the waiting request queue is inspected, verify if it has completed its
preparation phase and queue it to the device.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add a prepare() function to the Private Request representation.
The prepare() function is used by the PipelineHandler class to
prepare a Request to be queued to the hardware.
The current implementation of prepare() handles the fences associated
with the Framebuffers part of a Request. The function starts an event
notifier for each of those and emits the Request::prepared signal when
all fences have been signalled or an optional timeout has expired.
The optional timeout allows to interrupt blocked waits and notify the
Request as failed so that it can be cancelled.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Since a queue of waiting Requests has been introduced, not all Requests
queued to the PipelineHandler are immediately queued to the device.
As a Camera can be stopped at any time, it is required to complete the
waiting requests after the ones queued to the device had been completed.
Introduce a pure virtual PipelineHandler::stopDevice() function to be
implemented by pipeline handlers and make the PipelineHandler::stop()
function call it before completing pending requests.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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In order to prepare to handle synchronization fences at Request
queueing time, split the PipelineHandler::queueRequest() function in
two, by creating a list of waiting requests and introducing the
doQueueRequest() function that queues requests to the device in the
order the pipeline has received them.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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