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The number of metadata planes should always match the number of frame
buffer planes. Enforce this by making the vector private and providing
accessor functions.
As this changes the public API, update all in-tree users accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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Cache the PixelFormatInfo instead of looking it up in every call to
createBuffer(). This prepares for usage of the info in queueBuffer(), to
avoid a looking every time a buffer is queued.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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Multi-planar frame buffers can store their planes contiguously in
memory, or split them in discontiguous memory areas. Add a private
function to check in which of these two categories the frame buffer
belongs. This will be used to correctly handle the differences between
the V4L2 single and multi planar APIs.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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The FrameBuffer::planes() function checks that planes are correctly
initialized with an offset. This can be done at construction time
instead, as the planes are constant. The backtrace generated by the
assertion will show where the faulty frame buffer is created instead of
where it is used, easing debugging.
As the runtime overhead is reduced, there's no real need to drop the
assertion in the future anymore, it can be useful to ensure that the
planes are correctly populated by the caller. Drop the comment that
calls for removing the check.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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V4L2 describes multi-planar formats with different 4CCs depending on
whether or not the planes are stored contiguously in memory. Support
this when translating between PixelFormat and V4L2PixelFormat.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
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Add two helpers functions to the PixelFormatInfo class to compute the
byte size of a given plane, taking the frame size, the stride, the
alignment constraints and the vertical subsampling into account.
Use the new functions through the code base to replace manual
implementations.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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Move the PixelFormatPlaneInfo structure within the PixelFormatInfo class
definition and rename it to Plane, to align the naming scheme with other
parts of libcamera, such as FrameBuffer::Plane or FrameMetadata::Plane.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The V4L2VideoDevice::toV4L2PixelFormat() function is incorrectly
implemented, as it will pick a multi-planar format if the device
supports the multi-planar API, even if only single-planar formats are
supported. This currently works because the implementation calls
V4L2PixelFormat::fromPixelFormat(), which ignores the multiplanar
argument and always returns a single-planar format.
Fixing this isn't trivial. As we don't need to support multi-planar V4L2
formats at this point, drop the function instead of pretending
everything is fine, and call V4L2PixelFormat::fromPixelFormat() directly
from pipeline handlers. As the single-planar case is the most common,
set the multiplanar argument to false by default to avoid long lines.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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The inode is useful to check if two file descriptors refer to the same
file. Add a function to retrieve it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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The index generated by utils::enumerate() is an iteration counter, which
should thus be positive. Use std::size_t instead of the difference_type
of the container.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
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Many signals used in internal and public APIs carry the emitter pointer
as a signal argument. This was done to allow slots connected to multiple
signal instances to differentiate between emitters. While starting from
a good intention of facilitating the implementation of slots, it turned
out to be a bad API design as the signal isn't meant to know what it
will be connected to, and thus shouldn't carry parameters that are
solely meant to support a use case specific to the connected slot.
These pointers turn out to be unused in all slots but one. In the only
case where it is needed, it can be obtained by wrapping the slot in a
lambda function when connecting the signal. Do so, and drop the emitter
pointer from all signals.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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It can be useful to connect a signal to a functor, and in particular a
lambda function, while still operating in the context of a receiver
object (to support both object-based disconnection and queued
connections to Object instances).
Add a BoundMethodFunctor class to bind a functor, and a corresponding
Signal::connect() function. There is no corresponding disconnect()
function, as a lambda passed to connect() can't be later passed to
disconnect(). Disconnection typically uses disconnect(T *object), which
will cover the vast majority of use cases.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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The BoundMethodArgs specialization for the void return type is only
needed to avoid accessing the ret_ member variable that is lacking from
the corresponding BoundMethodPack specialization. As the member variable
is only accessed in the invokePack() function, instead of specializing
the whole class we can use SFINAE to select between two different
implementations of the function.
SFINAE can only depend on the function template parameters, not the
parameters of the class template in which the function is defined:
"Only the failures in the types and expressions in the immediate context
of the function type or its template parameter types are SFINAE errors."
We thus can't use the type R in an std::enable_if expression for the
invokePack() function. To work around this, we have to add a type T to
the function template definition, which defaults to R, and use T with
std::enable_if.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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The BoundMethodMember specialization for the void return type is only
needed to avoid accessing the ret_ member variable that is lacking from
the corresponding BoundMethodPack specialization. By adding a
BoundMethodPack::returnValue() function to read the member variable, we
can remove the complete BoundMethodMember specialization.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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Add a new field to the MediaEntity class to identify the type of
interface it exposes to userspace. The MediaEntity constructor is
changed to take a media_v2_interface pointer instead of just the device
node major and minor to have access to the interface type.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
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MappedFrameBuffer::maps() returns planes_. This renames the function
name to planes().
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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In CameraSensor, the mbusCodes() and sizes() accessor functions
retrieves all the supported media bus codes and the supported sizes
respectively. However, this is quite limiting since the caller
probably isn't in a position to match which range of sizes are
supported for a particular mbusCode.
Hence, the caller is most likely interested to know about the sizes
supported for a particular media bus code. This patch transforms the
existing CameraSensor::sizes() to CameraSensor::sizes(mbuscode) to
achieve that goal.
The patch also transforms existing CIO2Device::sizes() in IPU3 pipeline
handler to CIO2Device::sizes(PixelFormat) on a similar principle. The
function is then plumbed to CameraSensor::sizes(mbusCode) to enumerate
the per-format sizes as required in
PipelineHandlerIPU3::generateConfiguration().
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Tested-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The offset variable is introduced to FrameBuffer::Plane. In order to
detect that the plane is used while the offset is not set, this adds
the assertion to FrameBuffer::planes(). It should be removed in the
future.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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V4L2VideDevice::createBuffer() creates the same number of
FrameBuffer::Planes as V4L2 format planes. Therefore, if the v4l2 format
single is single-planar format, the created number of
FrameBuffer::Planes is 1. It should rather create the same number of
FrameBuffer::Planes as the color format planes.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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MappedBuffer::maps()
MappedBuffer::maps() returns std::vector<MappedBuffer::Plane>.
Plane has the address, but the address points the beginning of the
buffer containing the plane.
This makes the Plane point the beginning of the plane. So
MappedBuffer::maps()[i].data() returns the address of i-th plane.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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This adds offset to FrameBuffer::Plane. It enables representing frame
buffers that store planes in the same dmabuf at different offsets, as
for instance required by the V4L2 NV12 pixel format.
Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The LIBCAMERA_O_PTR() define adds the ';' at the end of the
templated call to _o().
While this works for the only current user in camera_manager.cpp, even
the statement there adds another semi-colon following it.
The addition of the semi-colon in the define unnecessarily prohibits the
macro from being used in places other than the end of a statement.
Remove it.
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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The compiler generated constructor does not initialize the
ControlInfoMap::idmap_ field.
Fix this by explicitly initializing the field in the class
declaration.
Reported-by: Coverity CID=354657
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Regarding (de)serialization in isolated IPA calls, we have four layers:
- struct
- byte vector + fd vector
- IPCMessage
- IPC payload
The proxy handles the upper three layers (with help from the
IPADataSerializer), and passes an IPCMessage to the IPC mechanism
(implemented as an IPCPipe), which sends an IPC payload to its worker
counterpart.
When a FileDescriptor is involved, previously it was only a
FileDescriptor in the first layer; in the lower three it was an int. To
reduce the risk of potential fd leaks in the future, keep the
FileDescriptor as-is throughout the upper three layers. Only the IPC
mechanism will deal with ints, if it so wishes, when it does the actual
IPC. IPCPipeUnixSocket does deal with ints for sending fds, so the
conversion between IPCMessage and IPCUnixSocket::Payload converts
between FileDescriptor and int.
Additionally, change the data portion of the serialized form of
FileDescriptor to a 32-bit unsigned integer, for alightnment purposes
and in preparation for conversion to an index into the fd array.
Also update the deserializer of FrameBuffer::Plane accordingly.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Tested-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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The PipelineHandler controls() and properties() functions are only used
by the Camera class. Now that the controls and properties are stored in
the Camera::Private class, we can drop those functions and access the
private data directly in Camera::controls() and Camera::properties().
Suggested-by: Jacopo Mondi <jacopo@jmondi.org>
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 CameraData class isn't used anymore. Drop it.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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With pipeline handlers now being able to subclass Camera::Private, start
the migration from CameraData to Camera::Private by moving the members
of the base CameraData class. The controlInfo_, properties_ and pipe_
members are duplicated for now, to allow migrating pipeline handlers one
by one.
The Camera::Private class is now properly documented, don't exclude it
from documentation generation.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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In order to allow subclassing Camera::Private in pipeline handlers, pass
the pointer to the private data to the Camera constructor, and to the
Camera::createCamera() function.
The Camera::Private id_ and streams_ members now need to be initialized
by the Camera constructor instead of the Camera::Private constructor, to
allow storage of the streams in a pipeline handler-specific subclass of
Camera::Private.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The Extensible constructor takes a pointer to a Private instance, whose
lifetime it then manages. Make this explicit in the API by passing the
pointer as a std::unique_ptr<Private>.
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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Plumb through VIMC mojo interface to enable buffers passing.
VIMC does not have parameters or statistics buffers but we can
mimick the typical case of passing IPA buffers from pipeline
handler to IPA using mock buffers. The mock IPA buffers are
FrameBuffers which are dmabuf backed (in other words, mmap()able
through MappedFramebuffer inside the IPA).
This commits shows:
- Passing the parameter buffer from the pipeline handler to
the IPA through functions defined in mojom interface.
- Passing request controls ControlList to the IPA.
Any tests using VIMC will now loop in the IPA paths. Any tests running
in isolated mode will help us to test IPA IPC code paths especially
around (de)serialization of data passing from pipeline handlers to the
IPA. Future IPA interface tests can simply extend the vimc mojom
interface to achieve/test a specific use case as required.
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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VIMC pipeline handler has dmabuf-backed mock FrameBuffers which are
specifically targetted mimicking IPA buffers (parameter and statistics).
Map these mock buffers to the VIMC IPA that would enable exercising IPA
IPC code paths. This will provide leverage to our test suite to test
IPA IPC code paths, which are common to various platforms.
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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As part of an effort to make the vimc IPA usable for testing, extend it
with a configure function. The configuration is currently ignored by the
IPA.
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>
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
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All the IPU3 Camera controls are currently initialized by the pipeline
handler which initializes them using the camera sensor configuration and
platform specific requirements.
However, some controls are better initialized by the IPA, which might,
in example, cap the exposure times and frame duration to the constraints
of its algorithms implementation.
Also, moving forward, the IPA should register controls to report its
capabilities, in example the ability to enable/disable 3A algorithms on
request.
Move the existing controls initialization to the IPA, by providing
the sensor configuration and its controls to the IPU3IPA::init()
function, which initializes controls and returns them to the pipeline
through an output parameter.
The existing controls initialization has been copied verbatim from the
pipeline handler to the IPA, if not a for few line breaks adjustments
and the resulting Camera controls values are not changed.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-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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Introduce a new field in the controls serialization protocol to
allow discerning which ControlIdMap a ControlInfoMap refers to.
The newly introduced IdMapType enumeration describes the possible
info maps:
- Either the globally available controls::controls and
properties::properties maps, which are valid across IPC boundaries
- A ControlIdMap created locally by the V4L2 device, which is not valid
across the IPC boundaries
At de-serialization time the idMapType field is inspected and
- If the idmap is a globally defined one, there's no need to create
new ControlId instances when populating the de-serialized
ControlInfoMap. Use the globally available map to retrieve the
ControlId reference and use it.
- If the idmap is a map only available locally, create a new ControlId
as it used to happen before this patch.
As a direct consequence, this change allows us to perform lookup by
ControlId reference on de-serialized ControlIdMap that refers to the
libcamera defined controls::controls and properties::properties.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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ControlInfoMap does not have a ControlId map associated, but rather
creates one with the generateIdMap() function at creation time.
As a consequence, when in the need to de-serialize a ControlInfoMap all
the ControlId it contains are created by the deserializer instance, not
being able to discern if the controls the ControlIdMap refers to are the
global libcamera controls (and properties) or instances local to the
V4L2 device that has first initialized the controls.
As a consequence the ControlId stored in a de-serialized map will always
be newly created entities, preventing lookup by ControlId reference on a
de-serialized ControlInfoMap.
In order to make it possible to use globally available ControlId
instances whenever possible, create ControlInfoMap with a reference to
an externally allocated ControlIdMap instead of generating one
internally.
As a consequence the class constructors take and additional argument,
which might be not pleasant to type in, but enforces the concepts that
ControlInfoMap should be created with controls part of the same id map.
As the ControlIdMap the ControlInfoMap refers to needs to be allocated
externally:
- Use the globally available controls::controls (or
properties::properties) id map when referring to libcamera controls
- The V4L2 device that creates ControlInfoMap by parsing the device's
controls has to allocate a ControlIdMap
- The ControlSerializer that de-serializes a ControlInfoMap has to
create and store the ControlIdMap the de-serialized info map refers to
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
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Remove the need for callers to reference PROT_READ/PROT_WRITE directly
from <sys/mman.h> by instead exposing the Read/Write mapping options as
flags from the MappedFrameBuffer class itself.
While here, introduce the <stdint.h> header which is required for the
uint8_t as part of the Plane.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The MappedFrameBuffer is a convenience feature which sits on top of the
FrameBuffer and facilitates mapping it to CPU accessible memory with
mmap.
This implementation is internal and currently sits in the same internal
files as the internal FrameBuffer, thus exposing those internals to
users of the MappedFramebuffer implementation.
Move the MappedFrameBuffer and MappedBuffer implementation to its own
implementation files, and fix the sources throughout to use that
accordingly.
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Usage of 'method' to refer to member functions comes from Java. The C++
standard uses the term 'function' only. Replace 'method' with 'function'
or 'member function' through the whole code base and documentation.
While at it, fix two typos (s/backeng/backend/).
The BoundMethod and Object::invokeMethod() are left as-is here, and will
be addressed separately.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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To prepare for the Camera::Private structure being used by pipeline
handlers, turn all its members to private. Members that are useful for
pipeline handlers will be made public again, or will be exposed through
accessor functions, on a case-by-case basis.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The Camera::Private class is defined in camera.cpp. To prepare for
allowing it to be subclassed by pipeline handlers, move it to a new
internal/camera.h header.
The \file comment block in camera.cpp now needs to explicitly tell which
camera.h file it refers to.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The Extensible and Extensible::Private classes contain pointers to each
other. These pointers are initialized in the respective class's
constructor, by passing a pointer to the other class to each
constructor. This particular construct reduces the flexibility of the
Extensible pattern, as the Private class instance has to be allocated
and constructed in the members initializer list of the Extensible
class's constructor. It is thus impossible to perform any operation on
the Private class between its construction and the construction of the
Extensible class, or to subclass the Private class without subclassing
the Extensible class.
To make the design pattern more flexible, don't pass the pointer to the
Extensible class to the Private class's constructor, but initialize the
pointer manually in the Extensible class's constructor. This requires a
const_cast as the o_ member of the Private class is const.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The Extensible::_d() functions are meant to be called by users of the
class. Document them.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Add type safety by turning the MapFlag and OpenModeFlag enum into enum
class.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Use the newly introduced Flags<> class to store a bitfield of
File::OpenMode in a type-safe way. The existing File::OpenMode enum is
renamed to File::OpenModeFlag to free the File::OpenMode for the Flags<>
type alias.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Use the newly introduced Flags<> class to store a bitfield of
File::MapFlag in a type-safe way.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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Add a Flags template class that provide type-safe bitwise operators on
enum values. This allows using enum types for bit fields, without giving
away type-safety as usually done when storing combined flags in integer
variables.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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It would be convenient to be able to iterate over available boolean
values, for example for controls that designate if some function can be
enabled/disabled. The current min/max/def constructor is insufficient,
as .values() is empty, so the values cannot be easily iterated over, and
creating a Span of booleans does not work for the values constructor.
Add new constructors to ControlInfo that takes a set of booleans (if
both booleans are valid values) plus a default, and another that takes
only one boolean (if only one boolean is a valid value).
Update the ControlInfo test accordingly.
Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
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The comment block at the beginning of the core.mojom file is meant to
provide an overview of how to use libcamera defined types in the definition
of mojom interfaces.
As the IPA/IPC interface definition mechanism evolved, the documentation
has not been updated accordingly.
Update the file comments to match the most recent IPA/IPC
interface definition and generation mechanism.
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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The createIPA() template function starts with code that doesn't depend
on the template parameters. Split it to a non-template function to avoid
code duplication in the binary.
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>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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The IPAManager::createIPA() function has its minVersion and maxVersion
parameters inverted. This doesn't cause any issue at the moment as both
the minimum and maximum version are set to 1 by all callers, but it's
still a bug. Fix it.
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>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
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