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The IPCUnixSocket::send() function may fail, in which case it can be
useful for debugging to log an error message that tells which event was
affected. Do so.
Reported-by: Coverity CID=35483[6-9]
Reported-by: Coverity CID=35484[01]
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The ThreadProxy IPA template does not implement a constructor and the
default compiler generated constructor does not initialise the private
ipa_ pointer.
Whilst this should not be expected to be used while uninitialised, it
does get caught by static analysis for every IPA module constructed, so
lets be clean and fix it.
Reported-by: Coverity CID=350116
Reported-by: Coverity CID=350123
Reported-by: Coverity CID=350140
Reported-by: Coverity CID=350147
Fixes: 7832e19a599e ("utils: ipc: add templates for code generation for IPC mechanism")
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Starting in version 0.22, the NearestCentroid function is only available
in the sklearn.neighbors namespace, when it was previously available in
both the sklearn.neighbors.nearest_centroid and sklearn.neighbors
namespaces. Use sklearn.neighbors as it works on all versions of
sklearn.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The OpenCV findHomography function now raises an unhandled error if it
receives fewer than 4 points whereas previously the limit was 3. This
makes no material difference to the behaviour of the tuning tool as it
will continue to search for the Macbeth chart at different scales.
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Isolated IPAs are forked to a new process by the proxy worker, which
shares the same process group. This allows the undesired effect that
the proxy worker will receive signals such as SIGINT and will be closed
by a Ctrl-C event before the pipeline handlers have been able to fully
clean up.
Prevent this signal from being delivered to the proxy worker by moving
the process to a new process group, matching the pid of the isolated
proxy.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=60
Tested-by: Kieran Bingham <kieran.bingham@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>
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
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ControlSerializer should be reset during IPA (re)configuration,
so that it doesn't look up stale deserialized cache built from
consecutive previous runs. This is already recommended in
ControlSerializer docs but the implementation seems missing.
The stale cache lookup seems to the core issue with Bug #58.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=58
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Move the functionality for the following components to the new
base support library:
- BoundMethod
- EventDispatcher
- EventDispatcherPoll
- Log
- Message
- Object
- Signal
- Semaphore
- Thread
- Timer
While it would be preferable to see these split to move one component
per commit, these components are all interdependent upon each other,
which leaves us with one big change performing the move for all of them.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The mojo parser is fine if there are types that are used in array/map
members that it does not know about. These are usually caught by the C++
compiler, because the generated code refers to unknown types. This
feature is necessary for us for supporting FrameBuffer::Plane as an
array/map member, since as long as the type has an IPADataSerializer and
the struct defined in C++, the generated code will run fine
(FrameBuffer::Plane is not defined anywhere in mojom but is used as an
array member in IPABuffer).
The types that are defined in controls.h (or any header included in
ipa_interface.h) will all be compiled by the C++ compiler fine, since
the generated files all include controls.h. The types that are there
that are not ControlInfoMap or ControlList (like ControlValue) will
still fail at the linker stage. For example:
struct A {
array<ControlValue> a;
};
will compile fine, but will fail to link, since
IPADataSerializer<ControlValue> doesn't exist. This behavior, although
not the best, is acceptable.
The issue is that if ControlInfoMap or ControlList are used as array/map
members without the libcamera prefix, the compiler will not complain, as
the types are valid, and the linker will also not complain, as
IPADataSerializer<ControlList> and IPADataSerializer<ControlInfoMap>
both exist. However, the code generator will not recognize them as
types that require a ControlSerializer (since mojo doesn't recognize
them, so they are different from the ones that it does recognize with
the libcamera namespace), and so the ControlSerializer will not be
passed to the serializer in the generated code. This is the cause of the
FATAL breakage:
FATAL IPADataSerializer ipa_data_serializer.cpp:437 ControlSerializer
not provided for serialization of ControlInfoMap
Since ControlInfoMap and ControlList are the only types that will run
into this issue, we solve this by simply detecting if they are used
without the prefix, and produce an error at that point in the code
generator. As the code generator stage no longer has information on the
source code file and line, we output the struct name in which the error
was found (ninja will output the file name).
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Take the SPDX header from the mojom file. Error out if the mojom file
has no SPDX header.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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Add a script to extract doxygen documentation comments from mojom files.
It matches based on ^\/\*\*$ for start of block and ^ \*\/$ for end of
block, and simply copies the comments to the output file along with a
header and the libcamera namespace.
Also add it to the meson file so it is usable by other meson files.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Acked-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Update mojo from the Chromium repository. The commit from which this was
taken is:
9c138d992bfc1fb8f4f7bcf58d00bf19c219e4e2 "Updating trunk VERSION from
4523.0 to 4524.0"
The update-mojo.sh script was used for this update.
Bug: https://bugs.libcamera.org/show_bug.cgi?id=34
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add a script to ease updating mojo from a chromium source tree.
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>
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Moving the core.mojom documentation to its corresponding .cpp file
(core_ipa_interface.cpp). This will allow Doxygen to generate the
documentation for IPABuffer, IPASettings and IPAStream structures.
Since the .mojom files are placed in include/ directory, the .cpp file
will live in $sourcedir/src/libcamera/ipa/ - which can also contain
documentation for other mojom generated IPA interfaces in subsequent
commit.
Also hide the constructors in generated IPA interface from doxygen,
via #ifndef __DOXYGEN__. These constructors provide no major value in
documenting them, instead will spew out doxygen warnings during the
build.
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.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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Structs defined in mojom previously used the namespace of the mojom file
that was being used as the source. This is obviously not the correct
namespace for structs that are defined in core.mojom. Fix the jinja
function for getting the element type including namespace, and use it.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Asynchronous tasks can only be submitted while the IPA is running.
Further more, the shutdown sequence can not be tracked with a simple
running flag. We can also be in the state 'Stopping' where we have not
yet completed all events, but we must not commence anything new.
Refactor the running_ boolean into a stateful enum to track this.
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Events may be queued to the pipeline handler between the pipeline
handler entering the ::stop() function, and before the call to stop the
IPA has completed.
Handle these events by dispatching all pending messages at the proxy
after the IPA has fully stopped.
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Signals and calls from the IPA should not occur after the IPA has been
put into the stopped state.
Add assertions to catch and prevent any messages being processed after
this.
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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This script will parse log output from the DelayedControls helper, when
enabled with:
LIBCAMERA_LOG_LEVELS=DelayedControls:0
It tabulates all control queuing/writing/getting per frame and warns
about potential issues related to frame delays not being account for, or
writes that are lagging behind or missed.
Run with the following command:
python3 ./delayedctrls_parse.py <logfile>
Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Acked-by: Paul Elder <paul.elder@ideasonboard.com>
Tested-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
[Kieran: Fix python raw strings]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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To make it more convenient for synchronous IPA calls to return a status,
convert the first output into a direct return if it is an int32.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Naushir Patuck <naush@raspberrypi.com>
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Add support to the mojom-based code generator for custom parameters to
init(). Remove the parameter type and count validation as well.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Add a script to update the local copy of kernel headers (in
include/linux/) from a Linux kernel git tree. The script handles header
installation, manual processing of the IPU3 header that is still in
staging, and update of the README file.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The has_input variable is unused, drop it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The header add checker only handles added header, which makes it miss
issues when a header is renamed. Fix it.
Fixes: 8fffab46b80f ("utils: checkstyle.py: Add header add checker")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Commit fc91951250ca ("utils: checkstyle.py: Add ability to filter files
by status in a commit") caused all renamed files to be ignored by the
checker. Fix it.
Fixes: fc91951250ca ("utils: checkstyle.py: Add ability to filter files by status in a commit")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Run mojo from meson to generate the header, serializer, and proxy files
for every pipeline's mojom data definition file.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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On some systems, python2 might still be the default python. Enforce
python3 by wrapping the mojo parser script in a python3 script. This
also has the benefit of not modifying mojo.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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We want to avoid changing our copy of mojo to make updates easier. Some
parameters in the mojo generator script needs to be changed though; add
a wrapper script that sets these parameters.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Add templates to mojo to generate code for the IPC mechanism. These
templates generate:
- module header
- module serializer
- IPA proxy cpp, header, and worker
Given an input data definition mojom file for a pipeline.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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DRM 4CCs are defined in little-endian, and can be declined in a
big-endian version by setting bit 31 (DRM_FORMAT_BIG_ENDIAN) in the 4CC
value.
Add support for such formats in the gen-formats.py script.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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The Commit class and subclasses were reworked in commit 4f5d17f3a4f5
("utils: checkstyle.py: Make title and files properties of commit
class") with the introduction of members of the base class that were
meant to be protected (not used externally, but accessible by
subclasses). They have been named with a '__' prefix for this purpose,
which was a bad choice as Python effectively replaces a leading '__'
with a literal '__classname__' prefix to make them private
(https://docs.python.org/3/tutorial/classes.html#private-variables). The
members accessed in the derived classes are thus different from the ones
in the base class.
Fix this by replacing the double underscore prefix with a single
underscore, which is a "weak internal use indicator" (as specified in
https://www.python.org/dev/peps/pep-0008/), closer to the protected
access specifier of C++.
Reported-by: Umang Jain <email@uajain.com>
Reported-by: Naushir Patuck <naush@raspberrypi.com>
Fixes: 4f5d17f3a4f5 ("utils: checkstyle.py: Make title and files properties of commit class")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Tested-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
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Formatting code using astyle doesn't lead to results as good as with
clang-format, and doesn't receive much test coverage as most developers
use clang-format. The code is thus bitrotting. Drop it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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Add a commit checker that ensures that all header files added to the
libcamera includes (public or internal) are accompanied by a
corresponding update of the meson.build file in the same directory.
Here's the output of the new checker when run against a commit that
forgot to update meson.build.
$ ./utils/checkstyle.py b3383da79f1d
---------------------------------------------------------------------------------
b3383da79f1d513b0d76db220a7104e1c1035e30 libcamera: buffer: Create a MappedBuffer
---------------------------------------------------------------------------------
Header include/libcamera/internal/buffer.h added without corresponding update to include/libcamera/internal/meson.build
---
1 potential issue detected, please review
In theory we could extend the checker to cover .cpp files too, but the
issue will be quite noticeable as meson won't build the file if
meson.build isn't updated. Header files are more tricky as problems
would only occur at when installing the headers (for public headers), or
would result in race conditions in the build. Both of those issues are
harder to catch.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Add a new category of checkers that operate on a whole commit.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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To avoid duplicating diff parsing in commit checkers, move it to the
Commit class.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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A commit can perform different operations on a file. Record the file
status (added, modified, renamed, deleted, ...) and add the ability to
filter files by status when listing the files touched by a commit.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Make the API of the Commit class more explicit by exposing the title and
files as properties instead of through a get_info() method.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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To prepare for checkers that operate directly on commits, move the
related classes to a separate section. No functional change is included.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The style checkers and formatters duplicate automatic class registry
code. Factor it out to a common ClassRegistry helper class. The list of
subclasses is moved to a class member variable of the auto-registered
base class type.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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The super() call is a shortcut syntax for super(__class__, <first arg>).
Drop the arguments when they match the default.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The Doxygen documentation for enumerators prefixes the enumerator name
with the enumeration name. For unscoped enumerations, this is incorrect.
Drop the scope. This fixes warnings produced by Doxygen when multiple
enumerators with identical names are defined in different scopes.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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The names have to match for the setting to work. Use the libcamera
terminology for consistency (even though it touches more files).
Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Specify in the readme and meson file that we depend on python3-ply and
python3-jinja2 for generating the IPA interface.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Import mojo from the Chromium repository, so that we can use it for
generating code for the IPC mechanism. The commit from which this was
taken is:
a079161ec8c6907b883f9cb84fc8c4e7896cb1d0 "Add PPAPI constructs for
sending focus object to PdfAccessibilityTree"
This tree has been pruned to remove directories that didn't have any
necessary code:
- mojo/* except for mojo/public
- mojo core, docs, and misc files
- mojo/public/* except for mojo/public/{tools,LICENSE}
- language bindings for IPC, tests, and some mojo internals
- mojo/public/tools/{fuzzers,chrome_ipc}
- mojo/public/tools/bindings/generators
- code generation for other languages
No files were modified.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Add a formatter to ensure consistent naming of 'd' and 'o' variables
related to the d-pointer design pattern, as implemented by the
Extensible class. The formatter also ensures that the pointer is always
const. const-correctness issues related to the data pointed to will be
caught by the compiler, and thus don't need to be checked here.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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Add a script that scans a trace for IPA call tracepoints, and returns
statistics on the time taken for IPA calls.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Implement tracing infrastructure in libcamera. It takes .tp files, as
required by lttng, and generates a tracepoint header and C file, as lttng
requires. meson is updated accordingly to get it to compile with the
rest of libcamera. Update the documentation accordingly.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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We're not using gerrit, so let's prevent Change-Id tags creeping in
unadvertently.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Remove an extra whitespace in the declaration of a dictionary entry in
gen-controls.py script.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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For each Control that supports enumerated values generate an array
of ControlValue which contains the full list of valid values.
At the expense of a slight increase in memory occupation this change
allows the construction of the ControlInfo associated with a Control
from the values list, defaulting the minimum and maximum values
reported by the ControlInfo.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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Rename the enumeration of supported values with the suffix "Enum"
in place of "Values" to prepare to re-use the suffix "Values"
for the vector of Control's value introduced by the next patch.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
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