From 3ebb692f323eaace79ae4932bd119df2de361650 Mon Sep 17 00:00:00 2001
From: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Date: Tue, 13 Apr 2021 07:47:14 +0200
Subject: ipa: ipu3: Add a histogram class

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>
---
 src/ipa/libipa/meson.build | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/ipa/libipa/meson.build')

diff --git a/src/ipa/libipa/meson.build b/src/ipa/libipa/meson.build
index 1819711d..038fc490 100644
--- a/src/ipa/libipa/meson.build
+++ b/src/ipa/libipa/meson.build
@@ -2,10 +2,12 @@
 
 libipa_headers = files([
     'algorithm.h',
+    'histogram.h'
 ])
 
 libipa_sources = files([
     'algorithm.cpp',
+    'histogram.cpp'
 ])
 
 libipa_includes = include_directories('..')
-- 
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