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2020-10-07Documentation: coding-style: Document global variable guidelinesPaul Elder
Document the issue related to global variable dependencies and how to avoid them. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-07libcamera: file_descriptor: Remove spurious 'is'Jacopo Mondi
Remove a spurious 'is' is a comment block. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Umang Jain <email@uajain.com> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-10-07pipeline: ipa: raspberrypi: Switch to use C++17 features where possibleNaushir Patuck
With the recent change to use C++17, the following code changes can be made: - Use C++17 [[fallthough]] attribute instead of /* Fall through */. - Swap boost::any to std::any. Signed-off-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>
2020-10-04qcam: viewfinder_gl: Add shader to render packed YUV formatsLaurent Pinchart
The shader supports all 4 packed 8-bit YUV variants. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-10-04qcam: viewfinder_gl: Merge the semi-planar UV and VU shadersLaurent Pinchart
Use macros to select the U and V pattern, to avoid code duplication between the two semi-planar shaders. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-10-04qcam: viewfinder_gl: Support #define in shadersLaurent Pinchart
Prepare the infrastructure to support defining preprocessor macros in shaders: - Rename the fragmentShaderSrc_ member to fragmentShaderFile_ to reflect better that it contains a file name, not shader source code - Add a new fragmentShaderDefines_ member to store preprocessor macros - Prepend the macros to the shader source before compiling it Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-10-04qcam: viewfinder_gl: Rename shader filesLaurent Pinchart
Rename shader files to prepare for packed YUYV support: - The NV prefix isn't a good match for packed (or for 3-planar) formats, replace it with a YUV prefix - Use .frag and .vert extensions to differentiate between fragment and vertex shaders Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-10-04qcam: viewfinder_gl: Hardcode the vertex shader file nameLaurent Pinchart
The GL renderer uses the same vertex shader for all formats. Hardcode the file name instead of storing it in a member variable. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-10-04qcam: viewfinder_gl: Don't store texture IDs in class membersLaurent Pinchart
The texture IDs can easily and cheaply be retrieved from the textures, there's no need to store them in class members. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-10-04qcam: Remove unneeded './' file prefix in *.qrcLaurent Pinchart
There's no need to prefix files in the local directory with './'. Drop it. While at it, add indentation to make the *.qrc files more readable. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-10-02pipeline: raspberrypi: Sensor flips should be applied unconditionallyNaushir Patuck
The code in pipeline_handler::start() that applies the flips were in a block that was conditional on the RPi::IPA_CONFIG_STAGGERED_WRITE return result. This should be applied unconditionally. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-02qcam: dng_writer: Record camera modelNiklas Söderlund
Record the model property of the camera if available. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-02cam: Print user-friendly camera namesNiklas Söderlund
Instead of only printing the camera ID which is not intended for humans to read and parse create a more user-friendly string when printing camera names. The ID is still printed as it is one option used to select camera using the --camera option. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Umang Jain <email@uajain.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-02libcamera: pipeline: uvcvideo: Set sensor model propertyNiklas Söderlund
Set the sensor model property from the model reported in the media graph. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-02libcamera: pipeline: uvcvideo: Initialize CameraData from MediaDeviceNiklas Söderlund
The UVCCameraData::init() is the only consumer of the default entry in the media graph, move the lookup of it into the init() function and pass it the MediaDevice. This is done in preparation to extend the CameraData initialization to consume more information from the MediaDevice. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-02libcamera: camera_sensor: Set sensor model propertyNiklas Söderlund
Set the sensor model property. 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>
2020-10-02libcamera: utils: Add method to remove non-ASCII charactersNiklas Söderlund
Add method that removes non-ASCII characters from a string. 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: Umang Jain <email@uajain.com>
2020-10-02libcamera: properties: Add model propertyNiklas Söderlund
The model name must to the extent possible describe the sensor. For most devices this is the model name of the sensor. While for some devices the sensor model is unavailable as the sensor or the entire camera is part of a larger unit and exposed as a black-box to the system. In such cases the model name of the smallest component closest to the sensor must be used. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-02utils: hooks: pre-push: Accept Acked-by in addition to Reviewed-byLaurent Pinchart
Allow pushing commits that have no Reviewed-by tag but have at least one Acked-by tag. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-10-02src: android: exif: Set the class byte orderingKieran Bingham
The exif object sets the byte ordering on construction, and then during later calls re-states the byte ordering when setting values. It could be argued that this ordering should already be known to the exif library and is redundant, but even so we must provide it. Ensure we are consistent in always using the same byte ordering by setting a private class member to re-use a single value. Reviewed-by: Umang Jain <email@uajain.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-10-01libcamera: pipeline: rkisp1: Add support for XRGB8888Niklas Söderlund
The self path supports XRGB8888, list it as a supported format. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-01libcamera: Add support for XRGB8888 and XBGR8888Niklas Söderlund
Add support for XRGB8888 and XBGR8888 formats. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-01libcamera: pipeline: rkisp1: Add support for R8Niklas Söderlund
Both the main and self path support R8, list it as a supported format. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-01libcamera: pipeline: rkisp1: Add support for RGB656Niklas Söderlund
The self path supports RGB565, list it as a supported format. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-01libcamera: pipeline: rkisp1: Fix media bus propagation for NV{12,21}Niklas Söderlund
The upstream driver has changed how the link formats are validated when starting to stream [1]. This revealed that libcamera did not adjust the media bus format from the link between {main,self} resizer source pad and the capture video device as expected by the driver. The media bus code YUYV8_2X8 was hardcoded to MEDIA_BUS_FMT_YUYV8_2X8 for all pixel formats while it must be adjusted to YUYV8_1_5X8 for NV12 and NV21, fix this. 1. 6803a9e0e1e43e9e ("media: staging: rkisp1: cap: simplify link validation by comparing media bus code") Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-10-01libcamera: pipeline: rkisp1: Remove support for YVYU and VYUYNiklas Söderlund
The upstream driver has dropped support for YVYU and VYUY [1], remove support from the pipeline handler. 1. 3acb3e06baf64e28 ("media: staging: rkisp1: cap: remove unsupported formats") Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-09-30libcamera: span: Use default copy assignemnt operatorLaurent Pinchart
The custom implementation of the copy assignment operator is identical to the one the compiler would generate. Replace it by the default. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
2020-09-30libcamera: pipeline: rkisp1: Use the media link to track if a path is enabledNiklas Söderlund
Instead of manually tracking if a path is enable or not use the media graph link status. There is no functional change. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-09-30libcamera: pipeline: rkisp1: Move path link handling to RkISP1PathNiklas Söderlund
Move the path link handling to RkISP1Path, there is no functional change. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-09-30libcamera: pipeline: rkisp1: Move start and stop of path to RkISP1PathNiklas Söderlund
Move the start and stop of a path to RkISP1Path. This allows the importing of buffers to be moved closer the path start/stop simplifying the code. Also by adding a simple running tracker the error logic in PipelineHandlerRkISP1 can be simplified as stop() can always be called. This also removes all external users of RkISP1Path::video_ so it can be made private. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-09-30libcamera: pipeline: rkisp1: Add wrappers for accessing the path video deviceNiklas Söderlund
As a step to be able to make RkISP1Path::video_ private add simple wrappers for buffer handling. There is no functional change. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-09-30libcamera: pipeline: rkisp1: Move path configuration generation and ↵Niklas Söderlund
validation to RkISP1Path Move the path configuration generation and validation to RkISP1Path. This is done to increase code reuse and to encapsulate the main and self path differences inside the RkISP1Path class. There is no functional change. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-09-30libcamera: pipeline: rkisp1: Move path configuration to RkISP1PathNiklas Söderlund
Move the path configuration to RkISP1Path to increase code reuse and make the V4L2 subdevice resizer private to the path. There is no functional change. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-09-30libcamera: pipeline: rkisp1: Breakout basic path handling to own classNiklas Söderlund
The self and main paths are very similar and the introduction of support for two simultaneous streams have made it clear their handling could be abstracted in a separate class. This is the first step to create such a class by breaking out the initialization and storage of the video and subdevices. There is no functional change in this patch. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2020-09-30libcamera: stream: Rename StillCaptureRaw to RawNiklas Söderlund
With the buffer copy removed from all pipelines for raw capture rename StillCaptureRaw to Raw to better describe the role. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2020-09-30Documentation: guides: pipeline-handler: Update clamp() namespaceUmang Jain
Update the sample code using utils::clamp() to std::clamp(). Fixes: f2734ff3ab09 ("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>
2020-09-29libcamera: ipu3: Adjust comment on ImgU configurationJacopo Mondi
Be more precise in commenting why the ImgU shall not be configured if only the RAW stream is requested. As an example, if the ImgU gets unecessary configured: cam -srole=viewfinder -c2 -C -> WORKS cam -srole=stillraw -c2 -C -> WORKS cam -srole=viewfinder -c2 -C -> Failed to queue buffer 0: Invalid argument Since commit ("libcamera: ipu3: Fix RAW+YUV capture") the ImgU configuration procedure also correctly implements the assumption that at least one of the YUV output is being operated. If that's not the case, as in the RAW-only capture use case, the code tries to access a non-existing configuration. One more reason to exit early if no YUV stream is requested. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-09-29libcamera: ipu3: Remove dead code checkJacopo Mondi
Since the re-implementation of the IPU3 pipeline handler configuration procedure, the main output is always assigned in case any YUV stream is requested. Remove a dead code block that checks for the main output to be valid. Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-09-29libcamera: ipu3: Fix RAW+YUV captureJacopo Mondi
When requesting one RAW stream and one YUV stream the StreamConfiguration assigned to the RAW stream is the first one added to the CameraConfiguration, while the YUV stream gets assigned to the main output. At configure() time the viewfinder output needs to be configured with the same format as the main output, but since the introduction of RAW capture support, the pipeline has not been updated and still assumes the main output configuration is the first one in the CameraConfiguration. This causes the viewfinder to be configured with the same format as the raw stream, breaking capture operations. Before this commit the following command fails and the ImgU does not produce frames: cam -srole=stillraw -srole=viewfinder -c2 -C Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
2020-09-29ipa: raspberrypi: Tidy up variable names to be consistentNaushir Patuck
Change variable names to camel case to be consistent with the rest of the source files. Remove #define consts and replace with constexpr. Add some newlines to make the code more readable. There are no functional changes in this commit. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [Kieran: Rebase merge conflicts resolved] [Kieran: Fix checkstyle line under 80 chars] Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29ipa: raspberrypi: Move IPA parameters to the RPi namespaceNaushir Patuck
All IPA related types/params are now moved to the RPi namespace. There are no functional changes in this commit. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> [Kieran: Rebase merge conflicts fixed] Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29ipa: raspberrypi: Rename the controller namespace from Rpi to RpiControllerNaushir Patuck
This avoids a namespace clash with the RPi namespace used by the ipa and pipeline handlers, and cleans up the syntax slightly. There are no functional changes in this commit. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29pipeline: raspberrypi: Rename RPi::RPiStream and RPi::RPiDeviceNaushir Patuck
Rename RPi::RPiStream -> RPi::Stream and RPi::RPiDevice -> RPi::Device. There are no functional changes in this commit. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29libcamera: ipa: raspberrypi: ALSC: Handle user transformDavid Plowman
Update ALSC (Auto Lens Shading Correction) to handle correctly the user transform now passed in the camera mode. The user transform is applied directly in the sensor so the image statistics already incorporate it, and the adaptive algorithm is entirely agnostic towards it, so all we have to do is flip the calibrated tables to match. (These tables will have been calibrated without the user transform.) Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29libcamera: raspberrypi: Plumb user transform through to IPADavid Plowman
This commit plumbs the user transform from the Raspberry Pi pipeline handler through to the IPA. Note that the transform is actually handled in the sensor (by setting the h/v flip bits), so the IPAs need to understand the orientation of the image they receive. Once in the IPA we add it to the CameraMode description, so that it becomes automatically available to all the individual control algorithms. The IPA configure method has to be reordered just a little so as to fill in the transform in the camera mode before calling SwitchMode. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29libcamera: raspberrypi: Set camera flips correctly from user transformDavid Plowman
The Raspberry Pi pipeline handler allows all transforms except those involving a transpose. The user transform is combined with any inherent rotation of the camera, and the camera's H and V flip bits are set accordingly. Note that the validate() method has to work out what the final Bayer order of any raw streams will be, before configure() actually applies the transform to the sensor. We make a note of the "native" (untransformed) Bayer order when the system starts, so that we can deduce transformed Bayer orders more easily. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29libcamera: Add user Transform to CameraConfigurationDavid Plowman
Add a field to the CameraConfiguration (including the necessary documentation) to represent a 2D transform requested by the application. All pipeline handlers are amended to coerce this to the Identity, marking the configuration as "adjusted" if something different had been requested. Pipeline handlers that support Transforms can be amended subsequently. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29libcamera: Add BayerFormat typeDavid Plowman
This type encodes BayerFormats in an explicit way, that makes them easier to use than some of the other more opaque type formats. This makes the BayerFormat useful for editing or manipulating Bayer types more easily. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29libcamera: Add Transform enum to represent 2D plane transforms.David Plowman
We implement 2D transforms as an enum class with 8 elements, consisting of the usual 2D plane transformations (flips, rotations etc.). The transform is made up of 3 bits, indicating whether the transform includes: a transpose, a horizontal flip (mirror) and a vertical flip. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2020-09-29libcamera: Allow access to v4l2_query_ext_ctrl structure for a V4L2 controlDavid Plowman
The V4L2Device::controlInfo method simply returns a pointer to the v4l2_query_ext_ctrl structure for the given control, which has already been retrieved and stored. Signed-off-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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