Factor out packet serialisation functions into new common file

src/core/serialisation.hpp

@@ -0,0 +1,78 @@
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file serialisation.hpp Functions related to (de)serialisation of buffers */
+
+#ifndef SERIALISATION_HPP
+#define SERIALISATION_HPP
+
+#include "bitmath_func.hpp"
+
+#include <vector>
+#include <string>
+
+void   BufferSend_bool  (std::vector<byte> &buffer, size_t limit, bool   data);
+void   BufferSend_uint8 (std::vector<byte> &buffer, size_t limit, uint8  data);
+void   BufferSend_uint16(std::vector<byte> &buffer, size_t limit, uint16 data);
+void   BufferSend_uint32(std::vector<byte> &buffer, size_t limit, uint32 data);
+void   BufferSend_uint64(std::vector<byte> &buffer, size_t limit, uint64 data);
+void   BufferSend_string(std::vector<byte> &buffer, size_t limit, const std::string_view data);
+size_t BufferSend_bytes (std::vector<byte> &buffer, size_t limit, const byte *begin, const byte *end);
+void   BufferSend_binary(std::vector<byte> &buffer, size_t limit, const char *data, const size_t size);
+
+template <typename T>
+struct BufferSerialisationHelper {
+	void Send_bool(bool data)
+	{
+		T *self = static_cast<T *>(this);
+		BufferSend_bool(self->GetSerialisationBuffer(), self->GetSerialisationLimit(), data);
+	}
+
+	void Send_uint8(uint8 data)
+	{
+		T *self = static_cast<T *>(this);
+		BufferSend_uint8(self->GetSerialisationBuffer(), self->GetSerialisationLimit(), data);
+	}
+
+	void Send_uint16(uint16 data)
+	{
+		T *self = static_cast<T *>(this);
+		BufferSend_uint16(self->GetSerialisationBuffer(), self->GetSerialisationLimit(), data);
+	}
+
+	void Send_uint32(uint32 data)
+	{
+		T *self = static_cast<T *>(this);
+		BufferSend_uint32(self->GetSerialisationBuffer(), self->GetSerialisationLimit(), data);
+	}
+
+	void Send_uint64(uint64 data)
+	{
+		T *self = static_cast<T *>(this);
+		BufferSend_uint64(self->GetSerialisationBuffer(), self->GetSerialisationLimit(), data);
+	}
+
+	void Send_string(const std::string_view data)
+	{
+		T *self = static_cast<T *>(this);
+		BufferSend_string(self->GetSerialisationBuffer(), self->GetSerialisationLimit(), data);
+	}
+
+	size_t Send_bytes(const byte *begin, const byte *end)
+	{
+		T *self = static_cast<T *>(this);
+		return BufferSend_bytes(self->GetSerialisationBuffer(), self->GetSerialisationLimit(), begin, end);
+	}
+
+	void Send_binary(const char *data, const size_t size)
+	{
+		T *self = static_cast<T *>(this);
+		BufferSend_binary(self->GetSerialisationBuffer(), self->GetSerialisationLimit(), data, size);
+	}
+};
+
+#endif /* SERIALISATION_HPP */