[v3,18/21] ipa: rppx1: goc: Add

28357 diff mbox series

diff --git a/src/ipa/rppx1/algorithms/goc.cpp b/src/ipa/rppx1/algorithms/goc.cpp
new file mode 100644
index 0000000000..36a8e069a4
--- /dev/null
+++ b/src/ipa/rppx1/algorithms/goc.cpp
@@ -0,0 +1,86 @@ 
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2026, Ideas On Board
+ *
+ * RPP-X1 Gamma out control
+ */
+
+#include "goc.h"
+
+/**
+ * \file goc.h
+ */
+
+namespace libcamera {
+
+namespace ipa::rppx1::algorithms {
+
+/**
+ * \copydoc libcamera::ipa::Algorithm::init
+ */
+int GammaOutCorrection::init(IPAContext &context, const ValueNode &tuningData)
+{
+	/* The logarithmic segments as specified in the reference. */
+	static constexpr unsigned int segments[] = {
+		64, 64, 64, 64, 128, 128, 128, 128,
+		256, 256, 256, 512, 512, 512, 512, 512,
+	};
+
+	return gamma_.init(context.ctrlMap, tuningData, segments);
+}
+
+/**
+ * \copydoc libcamera::ipa::Algorithm::configure
+ */
+int GammaOutCorrection::configure(IPAContext &context,
+				  [[maybe_unused]] const IPACameraSensorInfo &configInfo)
+{
+	gamma_.configure(context.activeState.goc);
+	return 0;
+}
+
+/**
+ * \copydoc libcamera::ipa::Algorithm::queueRequest
+ */
+void GammaOutCorrection::queueRequest(IPAContext &context, const uint32_t frame,
+				      IPAFrameContext &frameContext,
+				      const ControlList &controls)
+{
+	gamma_.queueRequest(context.activeState.goc, frame, frameContext.goc, controls);
+}
+
+/**
+ * \copydoc libcamera::ipa::Algorithm::prepare
+ */
+void GammaOutCorrection::prepare([[maybe_unused]] IPAContext &context,
+				 [[maybe_unused]] const uint32_t frame,
+				 IPAFrameContext &frameContext,
+				 RppX1Params *params)
+{
+	if (!frameContext.goc.update)
+		return;
+
+	auto config = params->block<BlockType::GaHv>();
+	config.setEnabled(true);
+
+	config->mode = RPPX1_GA_SEG_MODE_LOGARITHMIC;
+	gamma_.prepare(frameContext.goc, std::span(config->gamma_y));
+}
+
+/**
+ * \copydoc libcamera::ipa::Algorithm::process
+ */
+void GammaOutCorrection::process([[maybe_unused]] IPAContext &context,
+				 [[maybe_unused]] const uint32_t frame,
+				 IPAFrameContext &frameContext,
+				 [[maybe_unused]] const RppX1Stats *stats,
+				 ControlList &metadata)
+{
+	metadata.set(controls::Gamma, frameContext.goc.gamma);
+}
+
+REGISTER_IPA_ALGORITHM(GammaOutCorrection, "GammaOutCorrection")
+
+} /* namespace ipa::rppx1::algorithms */
+
+} /* namespace libcamera */
diff --git a/src/ipa/rppx1/algorithms/goc.h b/src/ipa/rppx1/algorithms/goc.h
new file mode 100644
index 0000000000..241d0d4cbc
--- /dev/null
+++ b/src/ipa/rppx1/algorithms/goc.h
@@ -0,0 +1,43 @@ 
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2026, Ideas On Board
+ *
+ * RPP-X1 Gamma out control
+ */
+
+#pragma once
+
+#include <libipa/gamma.h>
+
+#include "algorithm.h"
+
+namespace libcamera {
+
+namespace ipa::rppx1::algorithms {
+
+class GammaOutCorrection : public Algorithm
+{
+public:
+	int init(IPAContext &context, const ValueNode &tuningData) override;
+	int configure(IPAContext &context,
+		      const IPACameraSensorInfo &configInfo) override;
+	void queueRequest(IPAContext &context,
+			  const uint32_t frame,
+			  IPAFrameContext &frameContext,
+			  const ControlList &controls) override;
+	void prepare(IPAContext &context, const uint32_t frame,
+		     IPAFrameContext &frameContext,
+		     RppX1Params *params) override;
+	void process(IPAContext &context, const uint32_t frame,
+		     IPAFrameContext &frameContext,
+		     const RppX1Stats *stats,
+		     ControlList &metadata) override;
+
+private:
+	/* RPP_OUT ("human vision") pipeline with 12-bit gamma values */
+	GammaAlgorithm<RPPX1_GA_MAX_SAMPLES, UQ<0, 12>> gamma_;
+};
+
+} /* namespace ipa::rppx1::algorithms */
+
+} /* namespace libcamera */
diff --git a/src/ipa/rppx1/algorithms/meson.build b/src/ipa/rppx1/algorithms/meson.build
index 7e0b4ad011..d93b22c634 100644
--- a/src/ipa/rppx1/algorithms/meson.build
+++ b/src/ipa/rppx1/algorithms/meson.build
@@ -5,5 +5,6 @@  rppx1_ipa_algorithms = files([
     'awb.cpp',
     'blc.cpp',
     'ccm.cpp',
+    'goc.cpp',
     'lux.cpp',
 ])
diff --git a/src/ipa/rppx1/ipa_context.h b/src/ipa/rppx1/ipa_context.h
index c0ef73b042..0d7b298f43 100644
--- a/src/ipa/rppx1/ipa_context.h
+++ b/src/ipa/rppx1/ipa_context.h
@@ -21,6 +21,7 @@ 
 #include <libipa/ccm.h>
 #include <libipa/camera_sensor_helper.h>
 #include <libipa/fc_queue.h>
+#include <libipa/gamma.h>
 
 namespace libcamera {
 
@@ -46,6 +47,8 @@  struct IPAActiveState {
 
 	ipa::ccm::ActiveState ccm;
 
+	ipa::gamma::ActiveState goc;
+
 	struct {
 		double lux;
 	} lux;
@@ -66,6 +69,8 @@  struct IPAFrameContext : public FrameContext {
 
 	ipa::ccm::FrameContext ccm;
 
+	ipa::gamma::FrameContext goc;
+
 	struct {
 		double lux;
 	} lux;
diff --git a/src/ipa/rppx1/params.h b/src/ipa/rppx1/params.h
index b863b9ba19..b724fa3162 100644
--- a/src/ipa/rppx1/params.h
+++ b/src/ipa/rppx1/params.h
@@ -20,6 +20,7 @@  enum class BlockType : uint16_t {
 	BlsPre1,
 	CcorPost,
 	ExmPre1,
+	GaHv,
 	HistPost,
 	WbMeasPost,
 };
@@ -42,6 +43,7 @@  RPPX1_DEFINE_BLOCK_TYPE(AwbGPre1, awbg, AWBG_PRE1)
 RPPX1_DEFINE_BLOCK_TYPE(BlsPre1, bls, BLS_PRE1)
 RPPX1_DEFINE_BLOCK_TYPE(CcorPost, ccor, CCOR_POST)
 RPPX1_DEFINE_BLOCK_TYPE(ExmPre1, exm, EXM_PRE1)
+RPPX1_DEFINE_BLOCK_TYPE(GaHv, ga, GA_HV)
 RPPX1_DEFINE_BLOCK_TYPE(HistPost, hist, HIST_POST)
 RPPX1_DEFINE_BLOCK_TYPE(WbMeasPost, wbmeas, WBMEAS_POST)