Commit graph

37 commits

Author SHA1 Message Date
Barnabás Pőcze
1200775986 Documentation: guides: pipeline-handler: Query pixel formats once
There is no reason to create an entire new copy of the same thing,
so use the already existing `formats` object.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-05-02 17:25:30 +02:00
Barnabás Pőcze
b03992e66f Documentation: guides: pipeline-handler: Simplify format collection
I believe a simple range based for loop is easier to understand
here than `std::transform()`. Furthermore, using a for loop enables
the easy filtering of invalid pixel formats.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-05-02 17:25:30 +02:00
Barnabás Pőcze
f83bab529c Documentation: guides: pipeline-handler: Fix Camera::create() link
Since 6b4771d460 ("libcamera: camera: Hide Camera::create() from the public API")
`Camera::create()` is documented in the internal documentation.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-05-02 17:25:30 +02:00
Barnabás Pőcze
28d2d4f43c Documentation: guides: pipeline-handler: Fix configuration creation
`PipelineHandler::generateConfiguration()` returns a `std::unique_ptr`.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-05-02 17:25:30 +02:00
Barnabás Pőcze
dd2ddea8bf Documentation: guides: pipeline-handler: Fix property list file name
It is `property_ids_core.yaml`.

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-05-02 17:25:30 +02:00
Barnabás Pőcze
8e10804413 Documentation: guides: pipeline-handler: Fix camera creation
1. The unique_ptr containing the private data must be passed to
`Camera::create()`.

2. `registerCamera()` needs only the pointer to the `Camera`

Signed-off-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2025-05-02 17:25:30 +02:00
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
Laurent Pinchart
fa2dfd55cc libcamera: Replace usage of lroundf() with std::lround()
As explained in the coding style document, usage of std::lround() is
preferred over lroundf() as it picks the correct function based on
the argument type. Replace calls to lroundf() with std::lround() through
libcamera.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
2024-09-30 10:56:48 +03:00
Daniel Scally
182bdadd0f Documentation: Add documentation-contents.rst
Add a new .rst file referencing the documentation contents. This file
is then included in each documentation page so that we can enhance
the Documentation pages on the libcamera website using it. As we do
not want the appearance of the libcamera in-tree Documentation to
change just yet, disable the new class using the sphinx theme's CSS.

To facilitate easier distinguishing between "normal" and
documentation pages on the website we want to add a "documentation"
class to the content of all such pages. Since this new file will be
included on each documentation page it is convenient to add the new
directive here - do so. As the website uses different CSS to
libcamera, move the contents on docs.rst a little so that the
directive at the end of the contents block applies correctly.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-08-21 01:35:24 +03:00
Daniel Scally
88e5bf8279 libcamera: Split public and internal source arrays
Meson array variables hold lists of libcamera's source files. To help
facilitate the splitting of Doxygen generated documentation into
distinct public and internal versions, split those arrays to separate
public and internal variables.

Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Co-developed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-08-07 17:57:08 +03:00
Julien Vuillaumier
5ed35fca68 libcamera: pipeline: Rename pipelines to a shorter name
The PipelineHandlerFactoryBase class has a name that is propagated to
the PipelineHandler instance it creates.

In present implementation, this name comes from the
REGISTER_PIPELINE_HANDLER registration macro. It corresponds to the
stringified name of the PipelineHandler derived class. Therefore,
PipelineHandler factories and instances names can be quite long such as
"PipelineHandlerRkISP1".

A libcamera user may have to explicitly refer to a PipelineHandler name
for configuration purpose: one usage of the name can be to define a
pipeline handlers match list and their priorities. It is desired, for
user convenience, to use a short name to designate a pipeline handler.
Reusing the short pipeline names already defined in the meson option
files is an existing and consistent way of naming pipelines.

This change adds an explicit name parameter to the
REGISTER_PIPELINE_HANDLER registration macro. That parameter is used to
define the name of a pipeline handler factory, instead of the current
pipeline handler class name.

Each pipeline registration is updated accordingly. The short name
assigned corresponds to the pipeline directory name in the source tree.
It is consistent with pipelines names used in meson.

Changing the pipeline name has an impact on the IPA modules: each module
defines a IPAModuleInfo structure. This structure has a pipelineName
member defining the pipeline handler name it shall match with.
Therefore, each internal IPA module definition has to be changed to have
its IPAModuleInfo pipelineName name updated with the short pipeline
handler name.

In addition to this pipelineName member, the IPAModuleInfo structure
also has a name member, associated to the IPA module name. Having
renamed the pipelines to a short name, the pipeline name and the IPA
module names of the IPAModuleInfo structure are the same: for in-tree
IPA, they correspond to the respective pipeline and IPA subdirectories
in the source tree.  However the IPA name could be different, for
instance with a close source IPA implementation built out-of-tree. Thus,
it makes sense to keep the IPA name in that structure, as the 2
definitions may not always be redundant.

Signed-off-by: Julien Vuillaumier <julien.vuillaumier@nxp.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
[Kieran: Adjust for clang-format style fix, reformat commitmsg]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-05-14 23:20:29 +01:00
Jacopo Mondi
1bf2d707e4 guides: pipeline-handler: Fix controlInfo_ initialization
Since commit b48db3c489 ("libcamera: controls: Create ControlInfoMap
with ControlIdMap"), instances of the ControlInfoMap class need to be
created with an instance of an unordered_map of ControlId to ControlInfo
and with a ControlIdMap instance.

The pipeline handler developer guide was never updated to reflect the
change. Fix it.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-03-05 10:09:41 +01:00
Neal Gompa
e683297374 Documentation: Update Qt documentation links to Qt 6
The documentation is effectively the same, but we should be pointing
to the actively supported and used Qt version.

Signed-off-by: Neal Gompa <neal@gompa.dev>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-01-22 09:44:03 +02:00
Naushir Patuck
cbfbab48a7 documentation: Document vendor specific controls and properties handling
Add some documentation to the pipeline handler file describing how to
implement and handle vendor specific controls and properties with a
small example.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2023-11-30 13:59:28 +00:00
Naushir Patuck
0455bbbf51 build: controls: Rework how controls and properties are generated
Add support for using separate YAML files for controls and properties
generation. The mapping of vendor/pipeline handler to control file is
done through the controls_map variable in include/libcamera/meson.build.

This simplifies management of vendor control definitions and avoids
possible merge conflicts when changing the control_ids.yaml file for
core and draft controls. With this change, libcamera and draft controls
and properties files are designated the 'libcamera' vendor tag.

In this change, we also rename control_ids.yaml -> control_ids_core.yaml
and property_ids.yaml -> property_ids_core.yaml to designate these as
core libcamera controls.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2023-11-29 09:05:38 +00:00
Barnabás Pőcze
86fa7300fa libcamera: camera: Take span of StreamRole instead of vector
Change the parameter type of `generateConfiguration()` from `const std::vector&`
to `libcamera::Span`. A span is almost always preferable to a const vector ref
because it does not force dynamic allocation when none are needed, and it allows
any contiguous container to be used.

A new overload is added that accepts an initializer list so that

  cam->generateConfiguration({ ... })

keeps working.

There is no API break since a span can be constructed from a vector
and the initializer list overload takes care of the initializer lists,
but this change causes an ABI break.

Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[Kieran: Apply checkstyle fixups]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2023-07-04 22:48:30 +01:00
Naushir Patuck
726e9274ea pipeline: ipa: raspberrypi: Refactor and move the Raspberry Pi code
Split the Raspberry Pi pipeline handler and IPA source code into common
and VC4/BCM2835 specific file structures.

For the pipeline handler, the common code files now live in
src/libcamera/pipeline/rpi/common/
and the VC4-specific files in src/libcamera/pipeline/rpi/vc4/.

For the IPA, the common code files now live in
src/ipa/rpi/{cam_helper,controller}/
and the vc4 specific files in src/ipa/rpi/vc4/. With this change, the
camera tuning files are now installed under share/libcamera/ipa/rpi/vc4/.

To build the pipeline and IPA, the meson configuration options have now
changed from "raspberrypi" to "rpi/vc4":

meson setup build -Dipas=rpi/vc4 -Dpipelines=rpi/vc4

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
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>
2023-05-04 20:47:40 +03:00
Barnabás Pőcze
701b201cf3 Documentation: guides: pipeline-handler: Fix spelling error
Both {Camera,PipelineHandler}::generateConfiguration() take a list
of `StreamRole` objects, and not a list of `StreamRoles` objects.

Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2023-04-28 15:21:24 +03:00
Advait Dhamorikar
cee03cd183 Documentation: guides: pipeline-handler: Fix spelling error
The pipeline handler writers guide incorrectly references the
VividCameradata::init() impelementation with a spelling error.

Fix spelling of "impelementation" in the pipeline handler development
guide.

Signed-off-by: Advait Dhamorikar <advaitdhamorikar@gmail.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>
2023-03-06 13:10:54 +02:00
Jacopo Mondi
45736468c8 libcamera: v4l2_videodevice: Reintroduce toV4L2PixelFormat()
This is a partial revert of commit 395d43d6d7 ("libcamera:
v4l2_videodevice: Drop toV4L2PixelFormat()")

The function was removed because it incorrectly maps non-contiguous V4L2
format variants (ie V4L2_PIX_FMT_YUV420M) to the API version supported
by the video device (singleplanar API and multiplanar API).  It was
decided at the time to remove the function and let its users call
directly V4L2PixelFormat::fromPixelFormat() which accepts a
'multiplanar' flags.

As we aim to associate multiple V4L2PixelFormat to a single libcamera
format, the next patches will verify which of them is actually supported
by the video device. For now, return the contiguous version
unconditionally.

Re-introduce V4L2VideoDevice::toV4L2PixelFormat() and convert all
the V4L2PixelFormat::fromPixelFormat() users to use it.

The V4L2 compatibility layer is the only outlier as it doesn't have a
video device to poke, hence it still uses
V4L2PixelFormat::fromPixelFormat().

Next patches will implement the device format matching logic and handle
the non-contiguous plane issue in V4L2VideoDevice::toV4L2PixelFormat().

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Elder <paul.elder@ideasonboard.com>
2022-08-03 15:07:20 +02:00
Jacopo Mondi
83e0cee0ba guides: pipeline handler: Remove rogue spaces
Remove 4 rogue spaces from the pipeline developer guide.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Paul Elder <paul.elder@ideasonboard.com>
2022-08-03 15:07:19 +02:00
Quentin Schulz
1e4c4ad5f7 Documentation: Use https instead of http
Avoid a redirection from http by using https directly.

Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Cc: Quentin Schulz <foss+libcamera@0leil.net>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2022-05-04 19:46:05 +03:00
Quentin Schulz
f5f1cbbf39 Documentation: Fix typos
A few typos made it to the docs, so let's fix them.

Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Cc: Quentin Schulz <foss+libcamera@0leil.net>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2022-05-04 19:46:04 +03:00
Quentin Schulz
c7dbb45ea6 Documentation: Replace ’ by '
Replace U+2019 unicode character (’; right single quotation mark) by
U+27 unicode character ('; apostrophe) as it is what most people are
used to in sentences.

While Sphinx seems to be rendering both the same way, it makes it easier
for searching in rST files directly.

Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Quentin Schulz <foss+libcamera@0leil.net>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2022-05-04 19:45:40 +03:00
Laurent Pinchart
395d43d6d7 libcamera: v4l2_videodevice: Drop toV4L2PixelFormat()
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>
2021-09-07 19:17:46 +03:00
Laurent Pinchart
1815a0290f Documentation: guides: pipeline-handler: Migrate to Camera::Private
Update the pipeline handler guide following the migration from the
CameraData class to the Camera::Private class.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2021-08-17 00:24:16 +03:00
Laurent Pinchart
a48a000a33 libcamera: Rename 'method' to 'function'
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>
2021-08-09 15:40:32 +03:00
Kieran Bingham
27aff949fb libcamera/base: Move extended base functionality
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>
2021-06-25 16:11:08 +01:00
Nícolas F. R. A. Prado
aade93f503 Documentation: guides: pipeline-handler: Fix capture flag usage
The number of frames passed to the -C flag of cam should come right
after it, without a space, otherwise the value is discarded.
The log below already showed the correct usage, but the command in the
code-block was wrong, so fix it.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-03-20 22:11:42 +02:00
Nícolas F. R. A. Prado
f87be145cd Documentation: guides: pipeline-handler: Update code, commands and logs
The pipeline-handler guide is a bit outdated:
- ControlList* in start() is now const.
- Registered pipeline handler log now comes from Camera log and the message is different.

Update the pipeline-handler guide to reflect these changes.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-03-19 01:58:43 +02:00
Nícolas F. R. A. Prado
7ebc19752a Documentation: Fix typos and wrong rST syntax for literals
Fix some typos and some literals using ` instead of ``.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@posteo.net>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-03-19 01:51:57 +02:00
Niklas Söderlund
8992b3ffbb libcamera: pipeline_handler: Remove Camera argument from request handling
There is no need to pass the Camera pointer to queueRequest(),
completeBuffer() and completeRequest() as the Request also passed
contains the same information. Remove the Camera argument to avoid
situations where the information in the Request and the argument differ.

There is no functional change and no public API change as the interface
is only used between the Camera and PipelineHandler.

Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-12-28 14:02:13 +01:00
Naushir Patuck
a62b35b8c0 libcamera: pipeline: Pass libcamera controls into pipeline_handler::start()
Applications now have the ability to pass in controls that need to be
applied on startup, rather than doing it through Request where there might
be some frames of delay in getting the controls applied.

This commit adds the ability to pass in a set of libcamera controls into
the pipeline handlers through the pipeline_handler::start() method. These
controls are provided by the application through the camera::start()
public API.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Tested-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-12-08 14:28:51 +02:00
Sebastian Fricke
5e738eb4d5 Documentation: Fix typo in pipeline handler guide
s/Start and the stop the image acquisition/
 /Start and stop the image acquisition/

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Sebastian Fricke <sebastian.fricke.linux@gmail.com>
2020-10-26 17:52:54 +01:00
Hirokazu Honda
e04bd18589 libcamera: Omit extra semicolons
The end semicolons with LOG_DEFINE_CATEGORY,
LOG_DECLARE_CATEGORY and REGISTER_PIPELINE_HANDLER are
unnecessary.

Signed-off-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-20 13:15:52 +03:00
Umang Jain
b83ee94fe2 Documentation: guides: pipeline-handler: Update clamp() namespace
Update the sample code using utils::clamp() to std::clamp().

Fixes: f2734ff3ab ("libcamera: Replace utils::clamp() with std::clamp()")
Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-30 09:35:49 +01:00
Chris Chinchilla
33fe27741b Documentation: Guides: Pipeline Handler Writer's Guide
Introduce a pipeline-handler writers guide to provide a walk through of
the steps and concepts required to implement a new Pipeline Handler.

Signed-off-by: Chris Chinchilla <chris@gregariousmammal.com>
[Reflow/Rework, update to mainline API]
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
[Further reworks and review]
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-08-20 16:56:13 +01:00