From b145ae42428b9f21fff01d7353a655e07e818c33 Mon Sep 17 00:00:00 2001
From: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Date: Wed, 18 Aug 2021 17:54:02 +0200
Subject: ipa: ipu3: Move IPU3 awb into algorithms

Now that the interface is properly used by the AWB class, move it into
ipa::ipu3::algorithms and let the loops do the calls.

Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 src/ipa/ipu3/ipu3_awb.h | 91 -------------------------------------------------
 1 file changed, 91 deletions(-)
 delete mode 100644 src/ipa/ipu3/ipu3_awb.h

(limited to 'src/ipa/ipu3/ipu3_awb.h')

diff --git a/src/ipa/ipu3/ipu3_awb.h b/src/ipa/ipu3/ipu3_awb.h
deleted file mode 100644
index 12703489..00000000
--- a/src/ipa/ipu3/ipu3_awb.h
+++ /dev/null
@@ -1,91 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-/*
- * Copyright (C) 2021, Ideas On Board
- *
- * ipu3_awb.h - IPU3 AWB control algorithm
- */
-#ifndef __LIBCAMERA_IPU3_AWB_H__
-#define __LIBCAMERA_IPU3_AWB_H__
-
-#include <vector>
-
-#include <linux/intel-ipu3.h>
-
-#include <libcamera/geometry.h>
-
-#include "algorithms/algorithm.h"
-
-namespace libcamera {
-
-namespace ipa::ipu3 {
-
-/* Region size for the statistics generation algorithm */
-static constexpr uint32_t kAwbStatsSizeX = 16;
-static constexpr uint32_t kAwbStatsSizeY = 12;
-
-class IPU3Awb : public Algorithm
-{
-public:
-	IPU3Awb();
-	~IPU3Awb();
-
-	void prepare(IPAContext &context, ipu3_uapi_params *params) override;
-	void process(IPAContext &context, const ipu3_uapi_stats_3a *stats) override;
-
-	struct Ipu3AwbCell {
-		unsigned char greenRedAvg;
-		unsigned char redAvg;
-		unsigned char blueAvg;
-		unsigned char greenBlueAvg;
-		unsigned char satRatio;
-		unsigned char padding[3];
-	} __attribute__((packed));
-
-	/* \todo Make these three structs available to all the ISPs ? */
-	struct RGB {
-		RGB(double _R = 0, double _G = 0, double _B = 0)
-			: R(_R), G(_G), B(_B)
-		{
-		}
-		double R, G, B;
-		RGB &operator+=(RGB const &other)
-		{
-			R += other.R, G += other.G, B += other.B;
-			return *this;
-		}
-	};
-
-	struct IspStatsRegion {
-		unsigned int counted;
-		unsigned int uncounted;
-		unsigned long long rSum;
-		unsigned long long gSum;
-		unsigned long long bSum;
-	};
-
-	struct AwbStatus {
-		double temperatureK;
-		double redGain;
-		double greenGain;
-		double blueGain;
-	};
-
-private:
-	void calculateWBGains(const ipu3_uapi_stats_3a *stats);
-	void generateZones(std::vector<RGB> &zones);
-	void generateAwbStats(const ipu3_uapi_stats_3a *stats);
-	void clearAwbStats();
-	void awbGreyWorld();
-	uint32_t estimateCCT(double red, double green, double blue);
-
-	struct ipu3_uapi_grid_config awbGrid_;
-
-	std::vector<RGB> zones_;
-	IspStatsRegion awbStats_[kAwbStatsSizeX * kAwbStatsSizeY];
-	AwbStatus asyncResults_;
-};
-
-} /* namespace ipa::ipu3 */
-
-} /* namespace libcamera*/
-#endif /* __LIBCAMERA_IPU3_AWB_H__ */
-- 
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