ipa: rkisp1: algorithms: Add crosstalk algorithm

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>

1 files changed, 49 insertions, 0 deletions

diff --git a/src/ipa/rkisp1/algorithms/ccm.h b/src/ipa/rkisp1/algorithms/ccm.h
new file mode 100644
index 00000000..30cb8821
--- /dev/null
+++ b/src/ipa/rkisp1/algorithms/ccm.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2024, Ideas On Board
+ *
+ * RkISP1 Color Correction Matrix control algorithm
+ */
+
+#pragma once
+
+#include <linux/rkisp1-config.h>
+
+#include "libipa/matrix.h"
+#include "libipa/matrix_interpolator.h"
+
+#include "algorithm.h"
+
+namespace libcamera {
+
+namespace ipa::rkisp1::algorithms {
+
+class Ccm : public Algorithm
+{
+public:
+	Ccm() {}
+	~Ccm() = default;
+
+	int init(IPAContext &context, const YamlObject &tuningData) override;
+	void prepare(IPAContext &context, const uint32_t frame,
+		     IPAFrameContext &frameContext,
+		     rkisp1_params_cfg *params) override;
+	void process(IPAContext &context, const uint32_t frame,
+		     IPAFrameContext &frameContext,
+		     const rkisp1_stat_buffer *stats,
+		     ControlList &metadata) override;
+
+private:
+	void parseYaml(const YamlObject &tuningData);
+	void setParameters(rkisp1_params_cfg *params,
+			   const Matrix<float, 3, 3> &matrix,
+			   const Matrix<int16_t, 3, 1> &offsets);
+
+	unsigned int ct_;
+	MatrixInterpolator<float, 3, 3> ccm_;
+	MatrixInterpolator<int16_t, 3, 1> offsets_;
+};
+
+} /* namespace ipa::rkisp1::algorithms */
+
+} /* namespace libcamera */