From edfe10997b4839f8376ba78dfb3261da4c51b9d7 Mon Sep 17 00:00:00 2001
From: Daniel Scally <dan.scally@ideasonboard.com>
Date: Fri, 15 Nov 2024 07:46:24 +0000
Subject: ipa: ipu3: Use centralised libipa helpers

Use the centralised libipa helpers instead of open coding common
functions.

Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 src/ipa/ipu3/algorithms/agc.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'src/ipa/ipu3/algorithms/agc.cpp')

diff --git a/src/ipa/ipu3/algorithms/agc.cpp b/src/ipa/ipu3/algorithms/agc.cpp
index c5f3d8f0..466b3fb3 100644
--- a/src/ipa/ipu3/algorithms/agc.cpp
+++ b/src/ipa/ipu3/algorithms/agc.cpp
@@ -17,6 +17,7 @@
 
 #include <libcamera/ipa/core_ipa_interface.h>
 
+#include "libipa/colours.h"
 #include "libipa/histogram.h"
 
 /**
@@ -185,9 +186,9 @@ double Agc::estimateLuminance(double gain) const
 		blueSum += std::min(std::get<2>(rgbTriples_[i]) * gain, 255.0);
 	}
 
-	double ySum = redSum * rGain_ * 0.299
-		    + greenSum * gGain_ * 0.587
-		    + blueSum * bGain_ * 0.114;
+	double ySum = rec601LuminanceFromRGB(redSum * rGain_,
+					     greenSum * gGain_,
+					     blueSum * bGain_);
 
 	return ySum / (bdsGrid_.height * bdsGrid_.width) / 255;
 }
-- 
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