ipa: ipu3: Introduce a Context structure

An increasing amount of data and information needs to be shared between
the components that build up to implement image processing algorithms.

Create a context structure which will allow us to work towards calling
algorithms in a modular way, and sharing information between the modules.

The IPA context is a global context set at configure time
(IPASessionConfiguration) and a per-frame context (IPAFrameContext) used
while streaming.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 32 insertions, 0 deletions

diff --git a/src/ipa/ipu3/ipa_context.h b/src/ipa/ipu3/ipa_context.h
new file mode 100644
index 00000000..2706d3ca
--- /dev/null
+++ b/src/ipa/ipu3/ipa_context.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2021, Google Inc.
+ *
+ * ipu3_ipa_context.h - IPU3 IPA Context
+ *
+ */
+#ifndef __LIBCAMERA_IPU3_IPA_CONTEXT_H__
+#define __LIBCAMERA_IPU3_IPA_CONTEXT_H__
+
+#include <linux/intel-ipu3.h>
+
+namespace libcamera {
+
+namespace ipa::ipu3 {
+
+struct IPASessionConfiguration {
+};
+
+struct IPAFrameContext {
+};
+
+struct IPAContext {
+	IPASessionConfiguration configuration;
+	IPAFrameContext frameContext;
+};
+
+} /* namespace ipa::ipu3 */
+
+} /* namespace libcamera*/
+
+#endif /* __LIBCAMERA_IPU3_IPA_CONTEXT_H__ */