1 files changed, 68 insertions, 0 deletions
diff --git a/src/ipa/rpi/controller/algorithm.h b/src/ipa/rpi/controller/algorithm.h
new file mode 100644
index 00000000..4aa814eb
--- /dev/null
+++ b/src/ipa/rpi/controller/algorithm.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2019, Raspberry Pi Ltd
+ *
+ * algorithm.h - ISP control algorithm interface
+ */
+#pragma once
+
+/*
+ * All algorithms should be derived from this class and made available to the
+ * Controller.
+ */
+
+#include <string>
+#include <memory>
+#include <map>
+
+#include "libcamera/internal/yaml_parser.h"
+
+#include "controller.h"
+
+namespace RPiController {
+
+/* This defines the basic interface for all control algorithms. */
+
+class Algorithm
+{
+public:
+	Algorithm(Controller *controller)
+		: controller_(controller)
+	{
+	}
+	virtual ~Algorithm() = default;
+	virtual char const *name() const = 0;
+	virtual int read(const libcamera::YamlObject &params);
+	virtual void initialise();
+	virtual void switchMode(CameraMode const &cameraMode, Metadata *metadata);
+	virtual void prepare(Metadata *imageMetadata);
+	virtual void process(StatisticsPtr &stats, Metadata *imageMetadata);
+	Metadata &getGlobalMetadata() const
+	{
+		return controller_->getGlobalMetadata();
+	}
+	const std::string &getTarget() const
+	{
+		return controller_->getTarget();
+	}
+	const Controller::HardwareConfig &getHardwareConfig() const
+	{
+		return controller_->getHardwareConfig();
+	}
+
+private:
+	Controller *controller_;
+};
+
+/*
+ * This code is for automatic registration of Front End algorithms with the
+ * system.
+ */
+
+typedef Algorithm *(*AlgoCreateFunc)(Controller *controller);
+struct RegisterAlgorithm {
+	RegisterAlgorithm(char const *name, AlgoCreateFunc createFunc);
+};
+std::map<std::string, AlgoCreateFunc> const &getAlgorithms();
+
+} /* namespace RPiController */