1 files changed, 22 insertions, 0 deletions
diff --git a/src/ipa/rpi/controller/contrast_algorithm.h b/src/ipa/rpi/controller/contrast_algorithm.h
new file mode 100644
index 00000000..ce17a4f9
--- /dev/null
+++ b/src/ipa/rpi/controller/contrast_algorithm.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2019, Raspberry Pi Ltd
+ *
+ * contrast_algorithm.h - contrast (gamma) control algorithm interface
+ */
+#pragma once
+
+#include "algorithm.h"
+
+namespace RPiController {
+
+class ContrastAlgorithm : public Algorithm
+{
+public:
+	ContrastAlgorithm(Controller *controller) : Algorithm(controller) {}
+	/* A contrast algorithm must provide the following: */
+	virtual void setBrightness(double brightness) = 0;
+	virtual void setContrast(double contrast) = 0;
+};
+
+} /* namespace RPiController */