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2024-06-17ipa: rkisp1: algorithms: Add crosstalk algorithmPaul Elder
Add an algorithm module to the rkisp1 IPA for crosstalk correction. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.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>
2024-06-17ipa: libipa: Add MatrixInterpolator classPaul Elder
Add a class to encapsulate the functionality of fetching a matrix based on an integer key, and interpolating if there is no exact match. This is expected to be used by both color correction matrices / crosstalk correction as well as lens shading correction. A cache is included only for exact matches of the key. The caller is expected to decide the tolererance for rounding. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-06-17ipa: libipa: Add Matrix classPaul Elder
Add a class to represent a Matrix object and operations for adding matrices, multipling a matrix by a scalar, and multiplying two matrices. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.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>
2024-06-16ipa: libipa: pwl: Specialize YamlObject getterLaurent Pinchart
Implement a specialization of the YamlObject::Getter structure to support deserializing ipa::Pwl objects from YAML data. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-16ipa: libipa: pwl: Add a constructor that moves a Point vectorLaurent Pinchart
The Pwl::Pwl(const std::vector<Point> &) constructor is inefficient as it makes a copy of the given points vector. Add a second constructor that takes an rvalue reference to a points vector to provide move semantics. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-16ipa: libipa: pwl: Add a size() functionLaurent Pinchart
Add a size() function to the Pwl class to return the number of points in the piecewise linear function. This is useful, for instance, to validate that all points added with append() or prepend() have been taken into account. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-16ipa: libipa: pwl: Make the empty() function inlineLaurent Pinchart
The Pwl::empty() function is a one-liner that can be easily optimized by the compiler given the chance. Make it inline. While at it, move the function documentation block to match the class declaration order. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-16ipa: libipa: pwl: Suffix \param with directionLaurent Pinchart
Suffix the Doxygen \param commands with the direction for all parameters. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-16ipa: libipa: vector: Drop readYaml() functionLaurent Pinchart
Now that YAML deserialization of Vector instances is supported through YamlObject::get(), remove the Vector::readYaml() function. It turns out not to be used. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-16ipa: libipa: vector: Specialize YamlObject getterLaurent Pinchart
Implement a specialization of the YamlObject::Getter structure to support deserializing ipa::Vector objects from YAML data. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-06-16libcamera: yaml_parser: Delegate YamlObject::get() to helper structureLaurent Pinchart
The YamlObject::get() function is a function template that gets fully specialized for various types. This works fine for non-template types, but specializing it for template types (e.g. a std::vector<U>) would require partial template specialization, which C++ allows for classes and variables but not functions. To work around this problem, delegate the implementation to a new YamlObject::Getter structure template, which will support partial specialization. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-14ipa: rkisp1: agc: Plumb mode-selection and frame duration controlsPaul Elder
Plumb controls for setting metering mode, exposure mode, constraint mode, and frame duration limits. Also report them as available controls, as well as in metadata. While at it, add the missing #include for tuple, as a std::tie is used. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-14ipa: rkisp1: agc: Read histogram weights from tuning filePaul Elder
Add support to the rkisp1 AGC to read histogram weights from the tuning file. As controls for selecting the metering mode are not yet supported, for now hardcode the matrix metering mode, which is the same as what the AGC previously hardcoded. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
2024-06-13ipa: rkisp1: cproc: Drop incorrect [[maybe_unused]]Stefan Klug
A few function parameters are marked with [[maybe_unused]] but are actually used. Drop the attribute. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.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>
2024-06-13ipa: rkisp1: cproc: Merge identical functionsStefan Klug
convertContrast() and convertSaturation() are equal. Merge them into one. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.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>
2024-06-13ipa: rkisp1: cproc: Use anonymous namespace to limit symbol visibilityStefan Klug
Use a anonymous namespace instead of the static keyword to limity symbol visibility. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.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>
2024-06-13pipeline: rpi: Don't validate configuration in generateConfiguration()Naushir Patuck
generateConfiguration() called validate() as a final step, causing the stride and frameSize fields in StreamConfiguration to be filled in based on the pixel format and width/height. If a user application did not clear the stride field when setting up a custom pixel format and width/height, the pipeline handler would respect this stride and possibly overallocate buffers with a larger stride than needed. Fix this by removing the call to validate() completely, leaving the stride and frameSize fields defaulting to 0. Removal of this call is inconsequential as we hard-code a valid configuration for Raspberry Pi platforms in generateConfiguration(). Bug: https://github.com/raspberrypi/libcamera/issues/138 Bug: https://github.com/raspberrypi/libcamera/issues/141 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>
2024-06-13libcamera: yaml_parser: Make default value templated in `get()`Barnabás Pőcze
This way the construction of the default value of type `T` can be delayed until it is really needed, which is useful, for example when `T == std::string` and the default value comes from a string literal, as the default value string would always be constructed otherwise, even if not needed. Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com> 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>
2024-06-13libcamera: libipa: camera_sensor: Define AR0521 helper functions inlineLaurent Pinchart
All CameraSensorHelper subclasses define their member functions inline, except for the CameraSensorHelperAr0521 class. Inline the gainCode() and gain() functions to match the other classes. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-12libcamera: controls: Add missing period at end of Gamma descriptionLaurent Pinchart
The last sentence of the Gamma control description misses the final period. Add it. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-12ipa: rkisp1: goc: Avoid use of auto for short typeLaurent Pinchart
Replace one occurrence of the auto type qualifier with the explicit type it represents to increase readability. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-12ipa: rkisp1: goc: Mark default gamma table as static constexprLaurent Pinchart
The values for the default gamma table are stored in an array that is never modified. Mark it as static constexpr to facilitate optimizations. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-12ipa: rkisp1: goc: Use copydocLaurent Pinchart
Use the Doygen \copydoc command instead of duplicating documentation. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-12ipa: rkisp1: goc: Drop incorrect [[maybe_unused]]Laurent Pinchart
A few function parameters are marked with [[maybe_unused]] but are actually used. Drop the attribute. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-12ipa: rkisp1: goc: Fix typographical issues in documentation.Laurent Pinchart
Fix a few assorted typographical issues: - Sentences should end with a period. - Paragraphs should be separated by a blank line, and there should be no line break within a paragraph. - Doxygen lists need a list marker ('-' or '*', use '-' here). Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-12ipa: rpi: controller: Use libipa's Pwl classPaul Elder
To reduce code duplication, use the Pwl class from libipa. This also removes the Pwl class from the Raspberry Pi IPA. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Acked-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-12ipa: libipa: Copy pwl from rpi, and clean it up to match libcameraPaul Elder
Copy the piecewise linear function code from Raspberry Pi, and clean it up to align it more with the libcamera style. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Acked-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-06-12ipa: libipa: Add Vector classPaul Elder
Add a vector class to libipa. The original purpose of this is to replace the floating-point Point class that Raspberry Pi used in their Pwl, as that implementation of Point seemed more akin to a Vector than a Point. This is added to libipa instead of to geometry.h to avoid public API issues, plus this is not expected to be needed by applications. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-06-11pipeline: rkisp1: cproc: Fix default value handlingStefan Klug
Default control values were not applied to activeState. This had no negative side effects in the first place, as the hardware defaults were used. The issue became visible, when only one of the controls was set at runtime. In that case the params for the other values were overwritten with 0 (reset value of activeState) resulting in a black image. While at it, only add the controls to the controls map if the algorithm is contained in the tuning file. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-11meson: Group libipa and libipa_includes in a dependency objectLaurent Pinchart
Many build targets link with libipa and need libipa_includes. Group them in a libipa_dep dependency object to simplify the users. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-06-11libcamera: software_isp: Fix includes ordering in simple.cppMilan Zamazal
Let's make it conforming to the defined clang-format. Signed-off-by: Milan Zamazal <mzamazal@redhat.com> 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>
2024-06-11ipa: rkisp1: Add GammaOutCorrection algorithmStefan Klug
Add a gamma algorithm for the rkisp1. It defaults to a gamma of 2.2 which closely resembles sRGB. No seperate sRGB mode was implemented because the pwl that models the gamma curve is so coarse that there is basically no difference between srgb and gamma=2.2. The default can be overridden within the tuning file or set at runtime using the gamma control. The gamma algorithm is not enabled by default. This will be done in future tuning file updates. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-06-11ipa: rkisp1: Fix algorithm controls vanish after configureStefan Klug
std::unordered_map::merge(source) has the side effect of actually moving items from source to target. In this case the controls were removed from the source maps on the first call to updateControls() and on the second call to updateControls() they were missing in the source maps and therefore also removed from the camera. Fix this by using insert() instead of merge(). This is most likely cheaper than copy-contructing the source map. Fixes: 4c5152843a2a ("ipa: rkisp1: Derive rkisp1::algorithms::Agc from AgcMeanLuminance") Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-06-11libcamera: Add gamma control idStefan Klug
A camera gamma of roughly 2.2 is necessary to produce correct output images on a standard monitor. Add a control for that. Further information is available here: https://en.wikipedia.org/wiki/SRGB https://www.cambridgeincolour.com/tutorials/gamma-correction.htm Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
2024-06-05libcamera: dma_buf_allocator: Work around lack of file seals in uClibcLaurent Pinchart
uClibc doesn't provide the macros defining parameters for the file sealing API. Define them manually as a work around. Fixes: ea4baaacc325 ("libcamera: DmaBufAllocator: Support allocating from /dev/udmabuf") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2024-06-05libcamera: dma_buf_allocator: Work around lack of memfd_create() in uClibcLaurent Pinchart
uClibc doesn't provide a memfd_create() implementation. Fix it by using a direct syscall when the function isn't available. Fixes: ea4baaacc325 ("libcamera: DmaBufAllocator: Support allocating from /dev/udmabuf") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2024-06-05libcamera: dma_buf_allocator: Create memfd with CLOEXECLaurent Pinchart
Ensure that the memfd file descriptor won't be leaked to child processes by creating it with MFD_CLOEXEC. Fixes: ea4baaacc325 ("libcamera: DmaBufAllocator: Support allocating from /dev/udmabuf") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-04ipa: rpi: Disable StatsOutputEnable control by defaultNaushir Patuck
Set the default value of controls::rpi::StatsOutputEnable to false, disabling the functionality. This stops unnecessary copies of the statistics output ending up in the Request metdata if not needed. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-04libcamera: software_isp: Allow using dma-buffers from /dev/udmabufHans de Goede
Allow the DmaBufAllocator used by the software ISP to use memfd() + /dev/udmabuf for the software ISP destination buffers. This is useful on Linux distributions where normal users are not allowed to access /dev/dma_heap/* while they are allowed to access /dev/udmabuf. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # Lenovo-x13s Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-04libcamera: DmaBufAllocator: Support allocating from /dev/udmabufHans de Goede
The dma-buf allocator currently allocates from CMA and system heaps. Extend the dma-buf allocator to support allocating dma-buffers by creating memfd-s and turning those into dma-buffers using /dev/udmabuf. The buffers allocated through memfd/udmabuf are not suitable for zero-copy buffer sharing with other devices. Co-developed-by: Harvey Yang <chenghaoyang@chromium.org> Signed-off-by: Harvey Yang <chenghaoyang@chromium.org> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # Lenovo-x13s Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-04libcamera: Rename DmaHeap class to DmaBufAllocatorHans de Goede
Users of the DmaHeap class really just want some way to allocate dma-buffers from userspace. This can also be done by using /dev/udmabuf instead of using /dev/dma_heap/*. Rename DmaHeap class to DmaBufAllocator in preparation of adding /dev/udmabuf support. And update the DmaHeap class docs to match including replacing references to "dma-heap type" with "dma-buf provider". This is a pure automated rename on the code ('s/DmaHeap/DmaBufAllocator/') + file renames + doc updates. There are no functional changes. The DmaBufAllocator objects in vc4.cpp and software_isp.cpp are left named dmaHeap_ to keep the changes to those 2 files to a minimum. Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # Lenovo-x13s Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-03libcamera: v4l2_subdevice: Update to the new kernel routing APILaurent Pinchart
The subdev embedded data support series includes a change to the VIDIOC_SUBDEV_G_ROUTING and VIDIOC_SUBDEV_S_ROUTING ioctls that impacts the userspace API. Update to the new API, while preserving backward compatibility to ease the transition. Document the backward compatibility to only be supported for two kernel releases. As the routing API isn't enabled in any upstream kernel yet, users of the API need kernel patches, and are expected to be able to upgrade quickly. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-06-03pipeline: vimc: Don't hardcode scaling factor with recent kernelsLaurent Pinchart
Starting in kernel v5.16, the vimc driver stopped hardcoding the scaler factor. Use this to lift constraints on the camera configuration, and in particular on the exotic output size alignment to a multiple of 6. As a result, vimc-based cameras can more easily match common display resolutions. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
2024-06-02libcamera: software_isp: Remove TODO about internal representationMilan Zamazal
TODO #4 was recorded at a time where the IPA module computed gain values and the ISP computed the look up tables. The gains were higher-level parameters. Now that the look up tables are computed in the IPA module, the IPA and ISP are more tightly coupled and the TODO item is less relevant. Let's drop the TODO item. We may or may not need to switch to a different representation in future but there is currently no good need for this and the conversion of the values would be just waste of CPU cycles. Signed-off-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-06-02libcamera: software_isp: Remove DebayerParams::kGain10Milan Zamazal
The constant is used in a single place internally and doesn't belong to DebayerParams anymore. Let's use 256 directly. Signed-off-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Andrei Konovalov <andrey.konovalov.ynk@gmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-06-02libcamera: software_isp: Move color mappings out of debayeringMilan Zamazal
Constructing the color mapping tables is related to stats rather than debayering, where they are applied. Let's move the corresponding code to stats processing. The same applies to the auxiliary gamma table. As the gamma value is currently fixed and used in a single place, with the temporary exception mentioned below, there is no need to share it anywhere anymore. It's necessary to initialize SoftwareIsp::debayerParams_ to default values. These initial values are used for the first two frames, before they are changed based on determined stats. To avoid sharing the gamma value constant in artificial ways, we use 0.5 directly in the initialization. This all is not a particularly elegant thing to do, such a code belongs conceptually to the similar code in stats processing, but doing better is left for larger refactoring. This is a preliminary step towards building this functionality on top of libipa/algorithm.h, which should follow. Signed-off-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Andrei Konovalov <andrey.konovalov.ynk@gmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-06-02libcamera: software_isp: Honor black level in AWBMilan Zamazal
The white balance computation didn't consider black level. This is wrong because then the computed ratios are off when they are computed from the whole brightness range rather than the sensor range. This patch adjusts white balance computation for the black level. There is no need to change white balance application in debayering as this is already applied after black level correction. Exposure computation already subtracts black level, no changes are needed there. Signed-off-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Andrei Konovalov <andrey.konovalov.ynk@gmail.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-06-02libcamera: software_isp: Use a specific integer type for black levelMilan Zamazal
The documented range of values corresponds to uint8_t, so let's use that type. Signed-off-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Andrei Konovalov <andrey.konovalov.ynk@gmail.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-05-31ipa: rkisp1: Add a helper to convert floating-point to fixed-pointPaul Elder
Add helper functions for converting between floating point and fixed point numbers. Also add tests for them. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-05-27android: camera_capabilities: Fix GCC 14 warningBarnabás Pőcze
GCC 14 thinks `rects` is a "possibly dangling reference to a temporary": /libcamera/src/android/camera_capabilities.cpp: In member function ‘int CameraCapabilities::initializeStaticMetadata()’: /libcamera/src/android/camera_capabilities.cpp:1084:46: error: possibly dangling reference to a temporary [-Werror=dangling-reference] 1084 | const Span<const Rectangle>& rects = | ^~~~~ /libcamera/src/android/camera_capabilities.cpp:1085:83: note: the temporary was destroyed at the end of the full expression ‘(& properties)->libcamera::ControlList::get<libcamera::Span<const libcamera::Rectangle> >(libcamera::properties::PixelArrayActiveAreas).std::optional<libcamera::Span<const libcamera::Rectangle> >::value_or<libcamera::Span<const libcamera::Rectangle> >(libcamera::Span<const libcamera::Rectangle>())’ 1085 | properties.get(properties::PixelArrayActiveAreas).value_or(Span<const Rectangle>{}); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ The return value of `value_or()` is indeed a temporary, but binding it to a reference extends its lifetime. Avoid the warning by not using a reference; this does not make much difference since `value_or()` does not return a reference. Signed-off-by: Barnabás Pőcze <pobrn@protonmail.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>