Commit Graph

2567 Commits

Author SHA1 Message Date
Laurent Pinchart 516f365670 libcamera: matrix: Fix compilation error in inverse() function
Some gcc versions report uninitialized variable usage:

In member function ‘constexpr T& libcamera::Span<T, 4294967295>::operator[](size_type) const [with T = unsigned int]’,
    inlined from ‘void libcamera::matrixInvert(Span<const T>, Span<T, 4294967295>, unsigned int, Span<T, 4294967295>, Span<unsigned int>)::MatrixAccessor::swap(unsigned int, unsigned int) [with T = float]’ at ../../src/libcamera/matrix.cpp:194:13,
    inlined from ‘bool libcamera::matrixInvert(Span<const T>, Span<T, 4294967295>, unsigned int, Span<T, 4294967295>, Span<unsigned int>) [with T = float]’ at ../../src/libcamera/matrix.cpp:255:14:
../../include/libcamera/base/span.h:362:76: error: ‘row’ may be used uninitialized [-Werror=maybe-uninitialized]
  362 |         constexpr reference operator[](size_type idx) const { return data()[idx]; }
      |                                                                      ~~~~~~^
../../src/libcamera/matrix.cpp: In function ‘bool libcamera::matrixInvert(Span<const T>, Span<T, 4294967295>, unsigned int, Span<T, 4294967295>, Span<unsigned int>) [with T = float]’:
../../src/libcamera/matrix.cpp:232:30: note: ‘row’ was declared here
  232 |                 unsigned int row;
      |                              ^~~

This is a false positive. Fix it by initializing the variable when
declaring it.

Fixes: 6287ceff5a ("libcamera: matrix: Add inverse() function")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Tested-by: Milan Zamazal <mzamazal@redhat.com>
2025-05-22 19:04:15 +02:00
Barnabás Pőcze d997e97512 utils: codegen: Make users depend on controls.py in meson
Currently, modifying `controls.py` does not make those build targets dirty
that use a script that includes it (e.g. `gen-controls.py`) because meson
has no knowledge of this dependency. Add `depend_files` to each
`custom_target()` invocation to fix this.

Ideally it would be possible to attach this dependency to `gen_controls`,
`gen_gst_controls`, etc. objects themselves, so that repetition is
avoided, but this does not seem possible at the moment.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2025-05-22 13:16:07 +02:00
Barnabás Pőcze ffcecda4d5 libcamera: pipeline: uvcvideo: Report new AeEnable control as available
The `AeEnable` control is handled by the `Camera` class directly, but it
still has to be added because `ControlInfoMap`s are not easily modifiable.

See 338ba00e7a ("ipa: rkisp1: agc: Report new AeEnable control as available")
for more details and a similar change in rkisp1.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-05-22 12:34:54 +02:00
Barnabás Pőcze efdbe39698 libcamera: controls: Fix ControlInfoMap::count(unsigned int)
The two overloads of `find()` and `at()` have the same behaviour
regardless of the argument type: `unsigned int` or `const ControlId *`.
However, `count()` is not so because `count(unsigned int)` only checks
the `ControlIdMap`, and it does not check if the given id is actually
present in the map storing the `ControlInfo` objects.

So `count()` returns 1 for every control id that is present in the
associated `ControlIdMap` regardless of whether there is an actual
entry for the `ControlId` associated with the given numeric id.

Fix that by simply using `find()` to determine the return value.

Fixes: 76b9923e55 ("libcamera: controls: Avoid exception in ControlInfoMap count() and find()")
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2025-05-22 11:22:34 +02:00
Laurent Pinchart 1e67b96fb0 libcamera: vector: Extend matrix multiplication operator to heterogenous types
It is useful to multiply matrices and vectors of heterogeneous types, for
instance float and double. Extend the multiplication operator to support
this, avoiding the need to convert one of the operations. The type of the
returned vector is selected automatically to avoid loosing precision.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2025-05-20 09:49:09 +02:00
Laurent Pinchart 754798b664 libcamera: matrix: Extend multiplication operator to heterogenous types
It is useful to multiply matrices of heterogneous types, for instance
float and double. Extend the multiplication operator to support this,
avoiding the need to convert one of the matrices. The type of the
returned matrix is selected automatically to avoid loosing precision.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2025-05-20 09:49:09 +02:00
Stefan Klug 6287ceff5a libcamera: matrix: Add inverse() function
For calculations in upcoming algorithm patches, the inverse of a matrix
is required. Add an implementation of the inverse() function for square
matrices.

Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
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>
2025-05-20 09:46:12 +02:00
Stefan Klug bcba580546 libcamera: vector: Add a Span based constructor
When one wants to create a Vector from existing data, currently the only
way is via std::array. Add a Span based constructor to allow creation
from std::vectors and alike.

While at it, replace the manual loop with std::copy.

Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2025-05-20 09:46:12 +02:00
Stefan Klug aca9042abd libcamera: matrix: Add a Span based constructor
When one wants to create a Matrix from existing data, currently the only
way is via std::array. Add a Span based constructor to allow creation
from vectors and alike.

Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2025-05-20 09:46:11 +02:00
Sven Püschel fabfdd8559 libcamera: v4l2_videodevice: Log buffer count on allocation error
Log the actual and requested buffers count in case of a V4L2 buffers
allocation error, when the requested buffers count could not be
allocated.

Signed-off-by: Sven Püschel <s.pueschel@pengutronix.de>
Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2025-05-09 15:39:17 +02:00
Laurent Pinchart 9b50d3c23d libcamera: stream: Add color space to configuration string representation
Extend the string representation of StreamConfiguration, as returned by
the toString() and operator<<() functions, with color space information.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
2025-04-29 17:32:19 +03:00
Kieran Bingham 8751369c5b libcamera: pipeline: rkisp1: Convert to use MediaPipeline
Use the new MediaPipeline to manage and identify all sensors connected
to complex pipelines that can connect to the CSI2 receiver before the
ISP.

This can include chained multiplexors that supply multiple cameras, so
make use of the MediaDevice::locateEntities to search for all cameras
and construct a pipeline for each.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Acked-by: Stefan Klug <stefan.klug@ideasonboard.com>
2025-04-29 02:45:21 +09:00
Kieran Bingham f1721c2f9f libcamera: internal: Add MediaPipeline helper
Provide a MediaPipeline class to help identifing and managing pipelines across
a MediaDevice graph.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
2025-04-29 02:45:21 +09:00
Kieran Bingham 0785f5f99a libcamera: media_device: Add helper to return matching entities
Provide a helper on the MediaDevice to return a list of all
available entities which match a given function in the graph.

As a drive by, also fix a whitespace error in the documentation of
MediaDevice::setupLink.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
2025-04-29 01:20:50 +09:00
Barnabás Pőcze f31da7272e libcamera: ipa_module: Avoid unnecessary copy when getting signature
The `signature()` getter can just return a reference to the private vector
member variable, and let the caller make a copy if needed. Since the
return type is const qualified, this was likely the original intention.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2025-04-22 14:49:10 +02:00
Paul Elder 86c45c8fdf pipeline: rkisp1: Fix vblank delay
The vblank delay for delayed controls was incorrectly hardcoded to 1.
Get it from the camera sensor properties instead.

Fixes: f72c76eb6e ("rkisp1: Honor the FrameDurationLimits control")
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2025-04-22 20:18:11 +09:00
Quentin Schulz 6e24360d3f Revert "libcamera: rkisp1: Eliminate hard-coded resizer limits"
This reverts commit e85c7ddd38.

Linux kernel predating 6.4 (specifically commit 7cfb35d3a800 ("media:
rkisp1: Implement ENUM_FRAMESIZES") do not have the ioctl in rkisp1
driver required to dynamically query the resizer limits.

Because of that, maxResolution and minResolution are both {0, 0}
(default value for Size objects) which means filterSensorResolution()
will create an entry for the sensor in sensorSizesMap_ but because the
sensor resolution cannot fit inside the min and max resolution of the
rkisp1, no size is put into this entry in sensorSizesMap_.
On the next call to filterSensorResolution(),
sensorSizesMap_.find(sensor) will return the entry but when attempting
to call back() on iter->second, it'll trigger an assert because the size
array is empty.

Linux kernel 6.1 is supported until December 2027, so it seems premature
to get rid of those hard-coded resizer limits before this happens.

Let's restore the hard-coded resizer limits as fallbacks, actual limits
are still queried from the driver on recent enough kernels.

Fixes: 761545407c ("pipeline: rkisp1: Filter out sensor sizes not supported by the pipeline")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2025-04-22 13:24:01 +03:00
Barnabás Pőcze 83543f08d5 libcamera: pipeline: imx8-isi: Remove unused variable
The `mbusCodes` variable in `ISICameraConfiguration::validateRaw()`
has been unused since

  87fed43253 ("libcamera: imx8-isi: Break out RAW format selection"),

so remove it.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2025-04-21 16:15:21 +02:00
Barnabás Pőcze ee92b5211c libcamera: pipeline: virtual: Fix typo in log message
pass -> parse

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2025-04-21 16:05:43 +02:00
Barnabás Pőcze 78d9f7bb75 libcamera: pipeline: uvcvideo: Expose Gamma control
Commit 294ead848c ("libcamera: Add gamma control id")
introduced the "Gamma" control, so expose it for UVC
cameras as well using the `V4L2_CID_GAMMA` control.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-04-15 13:07:21 +02:00
Barnabás Pőcze 5553efc6b1 libcamera: request: Avoid double map lookup
Use `try_emplace()` that more or less combines `find()` and `operator[]`
in one function.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2025-04-15 12:11:40 +02:00
Stanislaw Gruszka 18792b81cb pipeline: simple: Reset delayedCtrls at start
Similar like in other pipelines (IPU3, rpi) avoid using stale
values of DelayedControls class when the same camera is started
second time.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
Co-developed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-04-03 10:28:30 +01:00
Laurent Pinchart 8a79800089 pipeline: simple: Create DelayedControls instance once only
The DelayedControls instance for the camera sensor is created in
SimplePipelineHandler::configure(). Constant deletion and reconstruction
of a new object is unnecessary, as the control delays are an intrinsic
property of the sensor and are known at initialization time. Move the
DelayedControls creation to the SimpleCameraData class constructor.

Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> # v6
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-04-03 10:28:29 +01:00
Stanislaw Gruszka 183bab1643 pipeline: simple: Enable frame start events
The simple pipeline handler uses frame start events to apply sensor
controls through the DelayedControls class. The setSensorControls()
function applies the controls directly, which would result in controls
being applied twice, if it wasn't for the fact that the pipeline handler
forgot to enable the frame start events in the first place. Those two
issues cancel each other, but cause controls to always be applied
directly.

Fix the issue by only applying controls directly in setSensorControls()
if no frame start event emitter is available, and by enabling the frame
start events in startDevice() otherwise. Disable them in stopDevice()
for symmetry.

Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> # v6
Co-developed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-04-03 10:28:24 +01:00
Stanislaw Gruszka 2f7bece17b pipeline: simple: Connect/disconnect frameStart signal at start/stop time
The frameStart signal from the frame start emitter is connected in the
configure() function, and is never disconnected. This means that each
time the camera is configured a new connection is made, causing the
DelayedControls::applyControls() to be called multiple times. Fix it by
connecting and disconnecting the signal when starting and stopping the
camera.

Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> # v6
Co-developed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-04-03 09:36:11 +01:00
Stanislaw Gruszka b2eccef711 libcamera: v4l2_device: add frame start event helpers
Add helper to check if frame start event are supported by subdevice.
Since kernel does not have interface to query supported events
use subscribe interface.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> # v3
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> # v5
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-04-03 09:36:11 +01:00
Barnabás Pőcze a2a7f4fc2d pipeline: rpi: Fix potential empty optional read
If `!target`, then `*target` is undefined behaviour, so check if the optional
is empty when printing the error message. Simplify the check as well.

Fixes: 6c71ee1f15 ("pipeline: raspberrypi: Introduce PipelineHandlerBase class")
Fixes: 841ef2b4bb ("pipeline: rpi: Add support for Raspberry Pi 5")
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
2025-04-02 19:37:38 +02:00
Barnabás Pőcze 8b2533d0ac libcamera: pipeline: uvcvideo: Fix ExposureTimeMode control setting
The mapping in `UVCCameraData::processControl()` is not entirely correct
because the control value is retrieved as a `bool` instead of `int32_t`.
Additionally, the available modes are not taken into account.

Retrieve the control value with the right type, `int32_t`, check if the
requested mode is available, and if so, set the appropriate V4L2 control
value selected by `addControl()` earlier.

Fixes: bad8d591f8 ("libcamera: uvcvideo: Register ExposureTimeMode control")
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
2025-04-01 16:13:00 +02:00
Barnabás Pőcze 799982b646 libcamera: pipeline: uvcvideo: Fix ExposureTimeMode control setup
`ControlInfo(Span<const int32_t>{...})` calls the incorrect constructor
of `ControlInfo`. The intended constructor to be called is
`ControlInfo(Span<const ControlValue>, ...)` however that is not called
because a span of `const int32_t` is passed. Instead, the constructor
`ControlInfo(const ControlValue &min, const ControlValue &max, ...)`
will be called.

Furthermore, since `values.back()` is used, only the last element of
the array is actually set.

To fix this, convert the array to contain `ControlValue` objects and use
a separate variable to keep track of which element to set next.

For each of `ExposureTimeMode{Auto,Manual}` save the V4L2 control value
that is to be used when the libcamera control is set.

Fixes: bad8d591f8 ("libcamera: uvcvideo: Register ExposureTimeMode control")
Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
2025-04-01 16:13:00 +02:00
Barnabás Pőcze 37283b68ea libcamera: camera_manager: Take camera id in std::string_view
Do not force the caller to have an `std::string` object as a
simple string view is sufficient to do the lookup.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2025-04-01 12:08:24 +02:00
Barnabás Pőcze 056ebf0b6e libcamera: camera_manager: Simplify camera lookup
`std::find()` works just fine because `std::shared_ptr` has
`operator==()` with the expected semantics.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-04-01 11:42:00 +02:00
Milan Zamazal 485a807dcb ipa: simple: Report exposure in metadata
Report exposure and gain in metadata.

This is more complicated than it could be expected because the exposure
value should be in microseconds but it's handled using V4L2_CID_EXPOSURE
control, which doesn't specify the unit, see
https://www.kernel.org/doc/html/latest/userspace-api/media/v4l/control.html.
So the unit conversion is done in the way rkisp1 IPA uses.

This requires getting and passing IPACameraSensorInfo around.  To avoid
naming confusion and to improve consistency with rkisp1 IPA,
sensorCtrlInfoMap parameter is renamed to sensorControls.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2025-03-28 02:09:16 +02:00
Kieran Bingham fb99081586 ipa: simple: softisp: Extend to pass metadata
Extend the Simple IPA IPC to support returning a metadata ControlList
when the process call has completed.

A new signal from the IPA is introduced to report the metadata,
similarly to what the hardware pipelines do.

Merge the metadata reported by the ISP into any completing request to
provide to the application.  Completion of a request is delayed until
this is done; this doesn't apply to canceled requests.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2025-03-28 02:09:13 +02:00
Milan Zamazal 4e343af7df libcamera: software_isp: Track frames and requests
Hardware pipelines track requests and other information related to
particular frames.  This hasn't been needed in software ISP so far.  But
in order to be able to track metadata corresponding to a given frame,
frame-request tracking mechanism starts being useful.  This patch
introduces the basic tracking structure, actual metadata handling is
added in the following patch.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> # Lenovo X13s
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2025-03-28 02:09:13 +02:00
Laurent Pinchart bb3b8f0fec pipeline: rpi: pisp: Fix uninitialized variable warning
gcc 13.3.0 from buildroot 2024.11.1 complains about an uninitialized
variable. This is a false positive as the cfe_ array can't be empty.
Nonetheless, it breaks builds, so initialize the variable to work around
the issue.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-26 13:41:17 +02:00
Milan Zamazal e2b4000dc9 libcamera: software_isp: Apply CCM in debayering
This patch applies color correction matrix (CCM) in debayering if the
CCM is specified.  Not using CCM must still be supported for performance
reasons.

The CCM is applied as follows:

  [r1 g1 b1]   [r]
  [r2 g2 b2] * [g]
  [r3 g3 b3]   [b]

The CCM matrix (the left side of the multiplication) is constant during
single frame processing, while the input pixel (the right side) changes.
Because each of the color channels is only 8-bit in software ISP, we can
make 9 lookup tables with 256 input values for multiplications of each
of the r_i, g_i, b_i values.  This way we don't have to multiply each
pixel, we can use table lookups and additions instead.  Gamma (which is
non-linear and thus cannot be a part of the 9 lookup tables values) is
applied on the final values rounded to integers using another lookup
table.

Because the changing part is the pixel value with three color elements,
only three dynamic table lookups are needed.  We use three lookup tables
to represent the multiplied matrix values, each of the tables
corresponding to the given matrix column and pixel color.

We use int16_t to store the precomputed multiplications.  This seems to
be noticeably (>10%) faster than `float' for the price of slightly less
accuracy and it covers the range of values that sane CCMs produce.  The
selection and structure of data is performance critical, for example
using bytes would add significant (>10%) speedup but would be too short
to cover the value range.

The color lookup tables can be represented either as unions,
accommodating tables for both the CCM and non-CCM cases, or as separate
tables for each of the cases, leaving the tables for the other case
unused.  The latter is selected as a matter of preference.

The tables are copied (as before), which is not elegant but also not a
big problem.  There are patches posted that use shared buffers for
parameters passing in software ISP (see software ISP TODO #5) and they
can be adjusted for the new parameter format.

Color gains from white balance are supposed not to be a part of the
specified CCM.  They are applied on it using matrix multiplication,
which is simple and in correspondence with future additions in the form
of matrix multiplication, like saturation adjustment.

With this patch, the reported per-frame slowdown when applying CCM is
about 45% on Debix Model A and about 75% on TI AM69 SK.

Using std::clamp in debayering adds some performance penalty (a few
percent).  The clamping is necessary to eliminate out of range values
possibly produced by the CCM.  If it could be avoided by adjusting the
precomputed tables some way then performance could be improved a bit.

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-26 10:45:01 +00:00
Milan Zamazal ac30686556 libcamera: software_isp: Track whether CCM is enabled
Applying color correction matrix (CCM) in software ISP is optional due
to performance reasons.  CCM is applied if and only if `Ccm' algorithm
is present in the tuning file.

Software ISP debayering is a performance critical piece of code and we
do not want to use dynamic conditionals there.  Therefore we pass
information about CCM application to debayering configuration and let it
select the right versions of debayering functions using templates.  This
is a trick similar to the previously used one for adding or not adding
an alpha channel to the output.

Debayering gets this information but it ignores it in this patch.
Actual processing with CCM is added in the followup patch.

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-26 10:45:01 +00:00
Milan Zamazal 23dfd69081 libcamera: software_isp: Use a macro to assign debayering methods
Assignments of the debayering methods to be used is a repetitive pattern
that can be (arguably) better expressed by using a macro.  This removes
some duplication and also makes easier to introduce more complex
assignment patterns.  This will be useful once color correction matrix
support is added.

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-26 10:45:01 +00:00
Milan Zamazal f1955a0058 libcamera: software_isp: Use common code to store debayered pixels
The debayering macros use the same pattern, let's extract it to a common
macro.  This reduces code duplication a bit now and it'll make changes
of debayering easier when color correction matrix is introduced.

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-26 10:45:01 +00:00
Barnabás Pőcze d505bd5360 libcamera: camera_manager: Do not emit signals while holding lock
Both `CameraManager::Private::{add,remove}Camera()` emit the
`camera{Added,Removed}` signals, respectively, while holding the
lock protecting the list of cameras.

This is problematic because if a callback tries to call `cameras()`,
then the same (non-recursive) lock would be locked again.

Furthermore, there is no real need to hold the lock while user code
is running, so release the lock as soon as possible.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-25 12:54:50 +01:00
Barnabás Pőcze 22dcaeacd0 libcamera: camera: Ensure correct id maps are always set
`Camera::Private::properties_` is a default constructed `ControlList`,
therefore it does not have an associated `ControlIdMap`. `controlInfo_`
is in a similar situation.

Extend the `Camera::Private` constructor to initialize the control id map
of both properly.

Multiple pipeline handlers copy the sensor's property list and
set that as camera properties, and since the `CameraSensor{Legacy,Raw}`
classes set the proper id map, the camera properties will have it too.

However, some pipelines, e.g. `uvcvideo` or `virtual`, do not do so,
and thus there will be no id map set. To fix this, extend the
`Camera::Private` constructor to set `properties::properties`.

As for `controlInfo_`, all pipeline handlers overwrite it during
camera initialization (and thus it will have the correct id map),
but still initialize the id map so that it is set at all times.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-21 18:28:28 +01:00
Barnabás Pőcze 1df8091e63 libcamera: v4l2_videodevice: lastUsedCounter_ need not be atomic
The `V4L2BufferCache` type is not thread-safe. Its `lastUsedCounter_`
member is not used in contexts where its atomicity would matter.
So it does not need to be have an atomic type.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-21 16:56:58 +01:00
Barnabás Pőcze fbb67a73c4 libcamera: media_device: Ignore lockf() return value
When `_FORTIFY_SOURCE` is enabled, the `lockf()` function might be marked
with the `warn_unused_result` attribute, leading to compilation failure.
Fix that by explicitly ignoring the return value.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-21 16:26:35 +01:00
Barnabás Pőcze d716200d2b libcamera: ipa_manager: Store IPAModules in std::unique_ptr
Express the ownership more clearly by using a smart pointer type.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-21 15:43:41 +01:00
Naushir Patuck 841ef2b4bb pipeline: rpi: Add support for Raspberry Pi 5
Add the Raspberry Pi 5 ISP (PiSP) pipeline handler to libcamera. To
include this pipeline handler in the build, set the following meson
option:

meson configure -Dpipelines=rpi/pisp

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-20 12:03:28 +00:00
Naushir Patuck 332b04ce20 pipeline: rpi: Add new stream flags for PiSP
Add the following new stream flags:

Needs16bitEndianSwap - Indicates that a 16-bit endian swap needs to be
performed on the framebuffer in software.

Needs14bitUnpack - Indicates that a CSI-2 14-bit unpacking (to 16-bits)
needs to be performed on the framebuffer in software.

These are to workaround hardware restrictions in the CFE hardware that
will be supported in a future commit.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-20 12:03:28 +00:00
Naushir Patuck dccdf87af3 ipa: rpi: Add support for Raspberry Pi 5
Add the Raspberry Pi 5 ISP (PiSP) IPA to libcamera. To include this IPA
in the build, set the following meson option:

meson configure -Dipas=rpi/pisp

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-20 12:03:28 +00:00
Laurent Pinchart bb1d216113 libcamera: base: log: Fix uninitialized variable warning
gcc 13.3.0, cross-compiling from amd64 to arm64, warns about a possibly
uninitialized variable in Logger::parseLogLevel():

src/libcamera/base/log.cpp: In static member function ‘static libcamera::LogSeverity libcamera::Logger::parseLogLevel(std::string_view)’:
../../src/libcamera/base/log.cpp:694:55: error: ‘severity’ may be used uninitialized [-Werror=maybe-uninitialized]
  694 |                 if (ec != std::errc() || *end != '\0' || severity > LogFatal)
      |                     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
src/libcamera/base/log.cpp:690:22: note: ‘severity’ was declared here
  690 |         unsigned int severity;
      |                      ^~~~~~~~

This appears to be a false positive, as the std::from_chars() function
should set severity value when it returns without an error. Still, the
warning is easy to solve, so fix it by initializing the severity
variable.

Fixes: 8fa119e0b5 ("libcamera: base: log: Use `std::from_chars()`")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-03 14:52:59 +02:00
Milan Zamazal 86ffaf936d libcamera: software_isp: Dispatch messages on stop
There may be pending messages in SoftwareIsp message queue when
SoftwareIsp stops.  The call to IPAProxySoft::stop() will dispatch them
before SoftwareIsp::stop() finishes.  But this is dependent on
IPAProxySoft::stop() implementation, let's break this dependency and
dispatch messages to SoftwareIsp explicitly in SoftwareIsp::stop().

This also allows dropping `running_' flag.  Since the SoftwareIsp
messages get processed and invoke IPA calls before the IPA proxy is set
to ProxyStopping state and the SoftwareIsp worker thread is no longer
running, it's guaranteed that no new messages come to SoftwareIsp and
attempt to call the stopped IPA proxy.

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-01 23:10:05 +00:00
Milan Zamazal 72a890e11a libcamera: base: thread: Support dispatching for a specific receiver
The Thread::dispatchMessage() function supports filtering messages based
on their type. It can be useful to also dispatch only messages posted
for a specific receiver. Add an optional receiver argument to the
dispatchMessage() function to do so. When set to null (the default
value), the behaviour of the function is not changed.

This facility is actually used in followup patches.

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-03-01 23:10:05 +00:00