1 files changed, 59 insertions, 0 deletions
diff --git a/src/ipa/rpi/controller/rpi/dpc.cpp b/src/ipa/rpi/controller/rpi/dpc.cpp
new file mode 100644
index 00000000..be3871df
--- /dev/null
+++ b/src/ipa/rpi/controller/rpi/dpc.cpp
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2019, Raspberry Pi Ltd
+ *
+ * dpc.cpp - DPC (defective pixel correction) control algorithm
+ */
+
+#include <libcamera/base/log.h>
+
+#include "dpc.h"
+
+using namespace RPiController;
+using namespace libcamera;
+
+LOG_DEFINE_CATEGORY(RPiDpc)
+
+/*
+ * We use the lux status so that we can apply stronger settings in darkness (if
+ * necessary).
+ */
+
+#define NAME "rpi.dpc"
+
+Dpc::Dpc(Controller *controller)
+	: Algorithm(controller)
+{
+}
+
+char const *Dpc::name() const
+{
+	return NAME;
+}
+
+int Dpc::read(const libcamera::YamlObject &params)
+{
+	config_.strength = params["strength"].get<int>(1);
+	if (config_.strength < 0 || config_.strength > 2) {
+		LOG(RPiDpc, Error) << "Bad strength value";
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+void Dpc::prepare(Metadata *imageMetadata)
+{
+	DpcStatus dpcStatus = {};
+	/* Should we vary this with lux level or analogue gain? TBD. */
+	dpcStatus.strength = config_.strength;
+	LOG(RPiDpc, Debug) << "strength " << dpcStatus.strength;
+	imageMetadata->set("dpc.status", dpcStatus);
+}
+
+/* Register algorithm with the system. */
+static Algorithm *create(Controller *controller)
+{
+	return (Algorithm *)new Dpc(controller);
+}
+static RegisterAlgorithm reg(NAME, &create);