[libcamera-devel] [RFC PATCH 02/10] libcamera: ipa_data_serializer: Modify (de)serialization for offset

[Hirokazu Honda]

The offset variable is added to FrameBuffer::Plane. This modifies
the serialization and deserialization code for the offset variable.

Signed-off-by: Hirokazu Honda <hiroh at chromium.org>
---
 src/libcamera/ipa_data_serializer.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/libcamera/ipa_data_serializer.cpp b/src/libcamera/ipa_data_serializer.cpp
index fb941e6b..144c3248 100644
--- a/src/libcamera/ipa_data_serializer.cpp
+++ b/src/libcamera/ipa_data_serializer.cpp
@@ -562,6 +562,7 @@ FileDescriptor IPADataSerializer<FileDescriptor>::deserialize(const std::vector<
  * FrameBuffer::Plane is serialized as:
  *
  * 1 byte  - FileDescriptor
+ * 4 bytes - uint32_t Offset
  * 4 bytes - uint32_t Length
  */
 template<>
@@ -580,6 +581,7 @@ IPADataSerializer<FrameBuffer::Plane>::serialize(const FrameBuffer::Plane &data,
 	fdsVec.insert(fdsVec.end(), fdFds.begin(), fdFds.end());
 
 	appendPOD<uint32_t>(dataVec, data.length);
+	appendPOD<uint32_t>(dataVec, data.offset);
 
 	return { dataVec, fdsVec };
 }
@@ -596,7 +598,8 @@ IPADataSerializer<FrameBuffer::Plane>::deserialize(std::vector<uint8_t>::const_i
 
 	ret.fd = IPADataSerializer<FileDescriptor>::deserialize(dataBegin, dataBegin + 1,
 								fdsBegin, fdsBegin + 1);
-	ret.length = readPOD<uint32_t>(dataBegin, 1, dataEnd);
+	ret.offset = readPOD<uint32_t>(dataBegin, 1, dataBegin + 2);
+	ret.length = readPOD<uint32_t>(dataBegin + 1, 1, dataEnd);
 
 	return ret;
 }
-- 
2.33.0.rc1.237.g0d66db33f3-goog