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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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Move the utils functionality to the libcamera/base library.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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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The documentation for the ProxyState and tracking variable was not added
when the IPA was extended with a state machine.
Add it.
Fixes: 70238ceca5b2 ("utils: ipc: proxy: Track IPA with a state machine")
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@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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Remove everything related to the C API, including ipa_context,
ipa_context_wrapper, and IPAInterfaceWrapper. Also remove relevant
documentation.
ipaCreate() provided by IPA implementations, and createInterface()
provided by IPAModule (wrapper around IPA implementation) both now
return a C++ object IPAInterface instead of struct ipa_context.
Although IPAInterfaceWrapper is the only component of libipa, the
skeleton and build files for libipa are retained.
After converting the C API to the C++-only API, make all pipeline
handlers and IPAs use the new API.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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This is a combination of 21 commits:
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libcamera: IPAModule: Replace ipa_context with IPAInterface
With the new IPC infrastructure, we no longer need the C interface as
provided by struct ipa_context. Make ipaCreate_() and createInterface()
return IPAInterface.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: ipa_context_wrapper: Remove ipa_context_wrapper
Since ipa_context has been replaced with custom IPAInterfaces, it is not
longer needed. Remove it.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: IPAInterface: remove ipa_context and functions from documentation
Remove all the documentation related to ipa_context and the C IPA API,
as well as the documentation about the functions in the IPAInterface.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
---
libcamera: IPAInterface: Remove all functions from IPAInterface
Now that all the functions in the IPA interface are defined in the data
definition file and a specialized IPAInterface is generated per pipeline
handler, remove all the functions from the base IPAInterface.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: IPAInterface: make ipaCreate return IPAInterface
With the new IPC infrastructure, we no longer need the C interface as
provided by struct ipa_context. Make ipaCreate return IPAinterface.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
---
ipa: remove IPAInterfaceWrapper
As every pipeline has its own proxy, IPAInterfaceWrapper is no
longer necessary. Remove it.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
---
libcamera: IPAProxy: Remove stop() override
Since stop() is part of the IPA interface, and the IPA interface is now
generated based on the data definition file per pipeline, this no longer
needs to be overrided by the base IPAProxy. Remove it.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: IPAProxy, IPAManager: Switch to one-proxy-per-pipeline scheme
IPAProxy is changed in two major ways:
- Every pipeline has its own proxy, to support each pipeline's IPA
interface
- IPAProxy implementations always encapsulate IPA modules, and switch
internally for isolation or threaded
The IPAProxy registration mechanism is removed, as each pipeline will
have its own proxy, so the pipeline can pass the specialized class name
of the IPAProxy to the IPAManager for construction.
IPAManager is changed accordingly to support these changes:
- createIPA is a template function that takes an IPAProxy class, and
always returns an IPAProxy
- IPAManager no longer decides on isolation, and simply creates an
IPAProxy instance while passing the isolation flag
Consequently, the old IPAProxy classes (IPAProxyThread and
IPAProxyLinux) are removed. The IPAInterfaceTest is updated to use
the new IPAManager interface, and to construct a ProcessManager as no
single global instance is created anymore.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
---
libcamera: IPAProxy: Add isolate parameter to create()
Since IPAProxy implementations now always encapsulate IPA modules, add a
parameter to create() to signal if the proxy should isolate the IPA or not.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: IPAManager: Fetch IPAProxy corresponding to pipeline
Now that each pipeline handler has its own IPAProxy implementation, make
the IPAManager fetch the IPAProxy based on the pipeline handler name.
Also, since the IPAProxy is used regardless of isolation or no
isolation, remove the isolation check from the proxy selection.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
---
libcamera: IPAManager: add isolation flag to proxy creation
When the IPA proxy is created, it needs to know whether to isolate or
not. Feed the flag at creation of the IPA proxy.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: IPAManager: Make createIPA return proxy directly
Since every pipeline knows the type of the proxy that it needs, and
since all IPAs are to be wrapped in a proxy, IPAManager no longer needs
to search in the factory list to fetch the proxy factory to construct a
factory. Instead, we define createIPA as a template function, and the
pipeline handler can declare the proxy type when it calls createIPA.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: IPAProxy: Remove registration mechanism
Implementations of IPA proxies use a registration mechanism to register
themselves with the main IPA proxy factory. This registration declares
static objects, causing a risk of things being constructed before the
proper libcamera facilities are ready. Since each pipeline handler has
its own IPA proxy and knows the type, it isn't necessary to have a proxy
factory. Remove it to alleviate the risk of early construction.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: proxy: Remove IPAProxyLinux and IPAProxyThread
We have now changed the proxy from per-IPC mechanism to per-pipeline.
The per-IPC mechanism proxies are thus no longer needed; remove them.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
tests: ipa_interface_test: Update to use new createIPA
Update the IPA interface test to use the new createIPA function from
IPAManager. Also create an instance of ProcessManager, as no single
global instance is created automatically anymore. Update meson.build to
to depend on the generated IPA interface headers.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: PipelineHandler: Remove IPA from base class
Since pipeline handlers now have their own IPA interface types, it can no
longer be defined in the base class, and each pipeline handler
implementation must declare it and its type themselves. Remove it from
the base class.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
ipa: raspberrypi: Add mojom data definition file
Add a mojom data definition for raspberrypi pipeline handler's IPAs.
This simplifies the API between the raspberrypi pipeline handler and the
IPA, and is not a direct translation of what was used before with
IPAOperationData.
Also move the enums from raspberrypi.h to raspberrypi.mojom
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: pipeline, ipa: raspberrypi: Use new data definition
Now that we can generate custom functions and data structures with mojo,
switch the raspberrypi pipeline handler and IPA to use the custom data
structures as defined in the mojom data definition file.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: pipeline, ipa: vimc: Support the new IPC mechanism
Add support to vimc pipeline handler and IPA for the new IPC mechanism.
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>
---
libcamera: pipeline, ipa: rkisp1: Support the new IPC mechanism
Add support to the rkisp1 pipeline handler and IPA for the new IPC
mechanism.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
libcamera: pipeline, ipa: ipu3: Support the new IPC mechanism
Add support to ipu3 pipeline handler and IPA for the new IPC mechanism.
[Original version]
Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
[Fixed commit message and small changes]
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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To make error handling easier in callers, allow the stop() function to
be called when the proxy is already stopped, or not started yet.
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 libcamera internal headers are located in src/libcamera/include/.
The directory is added to the compiler headers search path with a meson
include_directories() directive, and internal headers are included with
(e.g. for the internal semaphore.h header)
#include "semaphore.h"
All was well, until libcxx decided to implement the C++20
synchronization library. The __threading_support header gained a
#include <semaphore.h>
to include the pthread's semaphore support. As include_directories()
adds src/libcamera/include/ to the compiler search path with -I, the
internal semaphore.h is included instead of the pthread version.
Needless to say, the compiler isn't happy.
Three options have been considered to fix this issue:
- Use -iquote instead of -I. The -iquote option instructs gcc to only
consider the header search path for headers included with the ""
version. Meson unfortunately doesn't support this option.
- Rename the internal semaphore.h header. This was deemed to be the
beginning of a long whack-a-mole game, where namespace clashes with
system libraries would appear over time (possibly dependent on
particular system configurations) and would need to be constantly
fixed.
- Move the internal headers to another directory to create a unique
namespace through path components. This causes lots of churn in all
the existing source files through the all project.
The first option would be best, but isn't available to us due to missing
support in meson. Even if -iquote support was added, we would need to
fix the problem before a new version of meson containing the required
support would be released.
The third option is thus the only practical solution available. Bite the
bullet, and do it, moving headers to include/libcamera/internal/.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
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IPA modules may require configuration files, which may be stored in
different locations in the file system. To standardize file locations
between all IPAs and pipeline handlers, provide a helper function to
locate a configuration file by searching in the following directories:
- All directories specified in the LIBCAMERA_IPA_CONFIG_PATH environment
variable ; or
- In the source tree if libcamera is not installed ; otherwise
- In standard system locations (etc and share directories).
When stored in the source tree, configuration files shall be located in
a 'data' subdirectory of their respective IPA directory.
More locations, or extensions to the mechanism, may be implemented
later.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The iostream header isn't needed. Drop it.
Fixes: c2a8217df54c ("libcamera: add IPA proxy")
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The message printed when loading a proxy worker from the build directory
is missing a space. Add it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The two callers of functions libcameraPath() and isLibcameraInstalled()
end up using the same process and finally use the path with
libcamera.so. Hence write a function libcameraBuildPath() which
combines their functions and returns the root of the build sources
when the library has not been installed, but is running from the build
tree, thereby making call sites simpler.
When the library is installed, libcameraBuildPath() will return an empty
string.
Make changes in the call sites accordingly.
Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
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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When libcamera is built and tested before installing, it will
be unable to locate the path to proxy workers, or previously
installed files in the system path may be incorrect to load.
Hence, when libcamera is not installed, but is running from a build
tree, identify the location of that tree by using libcameraPath(), and
from that point add relative path to the proxy workers directory.
Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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User environment path in LIBCAMERA_IPA_PROXY_PATH should take precedence
over system loading locations. Change precedence accordingly
Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Replace the manual string splitting with utils::split()
Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Add an IPAProxy class whose implementations will act as a proxy between a
pipeline handler and an isolated IPA interface. Also add an IPAProxyFactory
that will construct the IPAProxy implementations as necessary.
Update Doxygen to ignore the directory where IPAProxy implementations will
reside.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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