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path: root/src/ipa/libipa/histogram.cpp
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2024-11-13ipa: libipa: Add data accessor to HistogramStefan Klug
For debugging purposes it is helpful to access the internal data of the histogram. Add an accessor for that. Signed-off-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2024-05-13ipa: libipa: histogram: Fix documentation of constructorLaurent Pinchart
Commit 1dc01bc9e6c3 ("ipa: libipa: histogram: Add transform parameter to constructor") added a new constructor for the Histogram class. The implementation is inline in the header file, and the documentation was added in the corresponding .cpp file, but it missed the \fn directive. This causes Doxygen to complain: src/ipa/libipa/histogram.h:31: warning: Member Histogram(Span< const uint32_t > data, Transform transform) (function) of class libcamera::ipa::Histogram is not documented. src/ipa/libipa/histogram.cpp:59: warning: libcamera::ipa::Histogram::bins has @param documentation sections but no arguments Fix it. Fixes: 1dc01bc9e6c3 ("ipa: libipa: histogram: Add transform parameter to constructor") Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com>
2024-05-09ipa: libipa: histogram: Add transform parameter to constructorPaul Elder
Add a parameter to the histogram constructor that takes a transformation function to apply to all the bins upon construction. This is necessary notably for the rkisp1, as the values reported from the hardware are 20 bits where the upper 16-bits are meaningful integer values and the lower 4 bits are fractional and meant to be discarded. As adding a right-shift parameter is probably too specialized, a generic function is added as a parameter instead. While at it, optimize the existing constructor to avoid push_back() into a vector with a known final size. Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2024-05-08libcamera: Drop file name from header comment blocksLaurent Pinchart
Source files in libcamera start by a comment block header, which includes the file name and a one-line description of the file contents. While the latter is useful to get a quick overview of the file contents at a glance, the former is mostly a source of inconvenience. The name in the comments can easily get out of sync with the file name when files are renamed, and copy & paste during development have often lead to incorrect names being used to start with. Readers of the source code are expected to know which file they're looking it. Drop the file name from the header comment block. The change was generated with the following script: ---------------------------------------- dirs="include/libcamera src test utils" declare -rA patterns=( ['c']=' \* ' ['cpp']=' \* ' ['h']=' \* ' ['py']='# ' ['sh']='# ' ) for ext in ${!patterns[@]} ; do files=$(for dir in $dirs ; do find $dir -name "*.${ext}" ; done) pattern=${patterns[${ext}]} for file in $files ; do name=$(basename ${file}) sed -i "s/^\(${pattern}\)${name} - /\1/" "$file" done done ---------------------------------------- This misses several files that are out of sync with the comment block header. Those will be addressed separately and manually. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
2024-05-08ipa: libipa: Allow creation of empty HistogramDaniel Scally
For convenience's sake allow the creation of empty Histograms so they can be embedded within other Classes and filled out with data at some later point in time. Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2022-10-19ipa: Drop period at end of \brief or \paramLaurent Pinchart
A few periods crept in at the end of Doxygen \brief or \param statements in the src/ipa/ directory. Remove them all in one go. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
2022-07-27raspberrypi: Update Copyright statement in all Raspberry Pi source filesNaushir Patuck
s/Raspberry Pi (Trading) Limited/Raspberry Pi Ltd/ to reflect the new Raspberry Pi entity name. Signed-off-by: Naushir Patuck <naush@raspberrypi.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2022-03-28ipa: libipa: Histogram: Constify the constructor spanJean-Michel Hautbois
The Histogram constructor does not modify the data. Pass it a Span<const uint32_t> instead of a Span<uint32_t>. Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
2021-08-31ipa: libipa: histogram: Fix typoLaurent Pinchart
"weighted", derived from the verb "to weight", comes from Middle English weight, weiȝte, weght, wight, from Old English wiht, ġewiht, from Proto-Germanic *wihtiz, from Proto-Indo-European *weǵʰ-. In none of those does the t come before the h. 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>
2021-06-25libcamera/base: Move extended base functionalityKieran Bingham
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>
2021-04-22ipa: ipu3: Add a histogram classJean-Michel Hautbois
This class will be used at least by AGC algorithm when quantiles are needed for example. It stores a cumulative frequency histogram. Going from cumulative frequency back to per-bin values is a single subtraction, while going the other way is a loop. Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Tested-by: Jacopo Mondi <jacopo@jmondi.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>