ipa: rpi: Add new algorithms for PiSP

Add new CAC, HDR, Saturation and Tonemapping algorithms.

Add a new Denoise algorithm that handles spatial/temporal/colour denoise
through one interface. With this change, the old SDN algorithm is now
considered deprecated and a warning message will be displayed if it is
enabled.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

1 files changed, 61 insertions, 0 deletions

diff --git a/src/ipa/rpi/controller/rpi/tonemap.cpp b/src/ipa/rpi/controller/rpi/tonemap.cpp
new file mode 100644
index 00000000..5f8b2bf2
--- /dev/null
+++ b/src/ipa/rpi/controller/rpi/tonemap.cpp
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2022 Raspberry Pi Ltd
+ *
+ * tonemap.cpp - Tonemap control algorithm
+ */
+#include "tonemap.h"
+
+#include <libcamera/base/log.h>
+
+#include "tonemap_status.h"
+
+using namespace RPiController;
+using namespace libcamera;
+
+LOG_DEFINE_CATEGORY(RPiTonemap)
+
+#define NAME "rpi.tonemap"
+
+Tonemap::Tonemap(Controller *controller)
+	: Algorithm(controller)
+{
+}
+
+char const *Tonemap::name() const
+{
+	return NAME;
+}
+
+int Tonemap::read(const libcamera::YamlObject &params)
+{
+	config_.detailConstant = params["detail_constant"].get<uint16_t>(0);
+	config_.detailSlope = params["detail_slope"].get<double>(0.1);
+	config_.iirStrength = params["iir_strength"].get<double>(1.0);
+	config_.strength = params["strength"].get<double>(1.0);
+	config_.tonemap.read(params["tone_curve"]);
+	return 0;
+}
+
+void Tonemap::initialise()
+{
+}
+
+void Tonemap::prepare(Metadata *imageMetadata)
+{
+	TonemapStatus tonemapStatus;
+
+	tonemapStatus.detailConstant = config_.detailConstant;
+	tonemapStatus.detailSlope = config_.detailSlope;
+	tonemapStatus.iirStrength = config_.iirStrength;
+	tonemapStatus.strength = config_.strength;
+	tonemapStatus.tonemap = config_.tonemap;
+	imageMetadata->set("tonemap.status", tonemapStatus);
+}
+
+// Register algorithm with the system.
+static Algorithm *Create(Controller *controller)
+{
+	return (Algorithm *)new Tonemap(controller);
+}
+static RegisterAlgorithm reg(NAME, &Create);