6 files changed, 143 insertions, 0 deletions
diff --git a/include/libcamera/ipa/soft.mojom b/include/libcamera/ipa/soft.mojom
index 3aa2066e..0fd47bb0 100644
--- a/include/libcamera/ipa/soft.mojom
+++ b/include/libcamera/ipa/soft.mojom
@@ -8,6 +8,10 @@ module ipa.soft;
 
 import "include/libcamera/ipa/core.mojom";
 
+struct IPAConfigInfo {
+	libcamera.ControlInfoMap sensorControls;
+};
+
 interface IPASoftInterface {
 	init(libcamera.IPASettings settings,
 	     libcamera.SharedFD fdStats,
diff --git a/src/ipa/simple/algorithms/algorithm.h b/src/ipa/simple/algorithms/algorithm.h
new file mode 100644
index 00000000..41f63170
--- /dev/null
+++ b/src/ipa/simple/algorithms/algorithm.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2024 Red Hat, Inc.
+ *
+ * Software ISP control algorithm interface
+ */
+
+#pragma once
+
+#include <libipa/algorithm.h>
+
+#include "module.h"
+
+namespace libcamera {
+
+namespace ipa::soft {
+
+using Algorithm = libcamera::ipa::Algorithm<Module>;
+
+} /* namespace ipa::soft */
+
+} /* namespace libcamera */
diff --git a/src/ipa/simple/ipa_context.cpp b/src/ipa/simple/ipa_context.cpp
new file mode 100644
index 00000000..3c1c7262
--- /dev/null
+++ b/src/ipa/simple/ipa_context.cpp
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2021, Google Inc.
+ * Copyright (C) 2024 Red Hat Inc.
+ *
+ * Software ISP IPA Context
+ */
+
+#include "ipa_context.h"
+
+/**
+ * \file ipa_context.h
+ * \brief Context and state information shared between the algorithms
+ */
+
+namespace libcamera::ipa::soft {
+
+/**
+ * \struct IPASessionConfiguration
+ * \brief Session configuration for the IPA module
+ *
+ * The session configuration contains all IPA configuration parameters that
+ * remain constant during the capture session, from IPA module start to stop.
+ * It is typically set during the configure() operation of the IPA module, but
+ * may also be updated in the start() operation.
+ */
+
+/**
+ * \struct IPAActiveState
+ * \brief The active state of the IPA algorithms
+ *
+ * The IPA is fed with the statistics generated from the latest frame processed.
+ * The statistics are then processed by the IPA algorithms to compute parameters
+ * required for the next frame capture and processing. The current state of the
+ * algorithms is reflected through the IPAActiveState to store the values most
+ * recently computed by the IPA algorithms.
+ */
+
+/**
+ * \struct IPAContext
+ * \brief Global IPA context data shared between all algorithms
+ *
+ * \var IPAContext::configuration
+ * \brief The IPA session configuration, immutable during the session
+ *
+ * \var IPAContext::frameContexts
+ * \brief Ring buffer of the IPAFrameContext(s)
+ *
+ * \var IPAContext::activeState
+ * \brief The current state of IPA algorithms
+ */
+
+} /* namespace libcamera::ipa::soft */
diff --git a/src/ipa/simple/ipa_context.h b/src/ipa/simple/ipa_context.h
new file mode 100644
index 00000000..e7d8b8df
--- /dev/null
+++ b/src/ipa/simple/ipa_context.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2024 Red Hat, Inc.
+ *
+ * Simple pipeline IPA Context
+ */
+
+#pragma once
+
+#include <libipa/fc_queue.h>
+
+namespace libcamera {
+
+namespace ipa::soft {
+
+struct IPASessionConfiguration {
+};
+
+struct IPAActiveState {
+};
+
+struct IPAFrameContext : public FrameContext {
+};
+
+struct IPAContext {
+	IPASessionConfiguration configuration;
+	IPAActiveState activeState;
+	FCQueue<IPAFrameContext> frameContexts;
+};
+
+} /* namespace ipa::soft */
+
+} /* namespace libcamera */
diff --git a/src/ipa/simple/meson.build b/src/ipa/simple/meson.build
index b297e1d2..7757f99b 100644
--- a/src/ipa/simple/meson.build
+++ b/src/ipa/simple/meson.build
@@ -3,6 +3,7 @@
 ipa_name = 'ipa_soft_simple'
 
 soft_simple_sources = files([
+    'ipa_context.cpp',
     'soft_simple.cpp',
     'black_level.cpp',
 ])
diff --git a/src/ipa/simple/module.h b/src/ipa/simple/module.h
new file mode 100644
index 00000000..8d4d53fb
--- /dev/null
+++ b/src/ipa/simple/module.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2024 Red Hat, Inc.
+ *
+ * Software ISP IPA Module
+ */
+
+#pragma once
+
+#include <libcamera/controls.h>
+
+#include <libcamera/ipa/soft_ipa_interface.h>
+
+#include "libcamera/internal/software_isp/debayer_params.h"
+#include "libcamera/internal/software_isp/swisp_stats.h"
+
+#include <libipa/module.h>
+
+#include "ipa_context.h"
+
+namespace libcamera {
+
+namespace ipa::soft {
+
+using Module = ipa::Module<IPAContext, IPAFrameContext, IPAConfigInfo,
+			   DebayerParams, SwIspStats>;
+
+} /* namespace ipa::soft */
+
+} /* namespace libcamera */