Moved utility code into its own library (#162)

* Initial exporter implementation

* Updated to use static library.

* minor cleanup

* Cleaned things up a bit

* Fixed merge issues

* Minor commenting

* Added Begin and End functions, and removed HL stuff (to be turned into an exporter at a later date)

* Cleaned some stuff up

* Additional cleanup

* Removed some commented out code

* Fixed compilation issues

* Cleanup

* Fixed merge issues

* Got rid of unused windows.h includes

* Cleanup

* Fixed warning

* Removed additional redundancies

* Cleanup

* Fixed merge issues

* Fixed some compiler issues, added makefile for exportertest.

* Removed redundancies and clang formatted

* Made sure exportertest compiles with C++17

* Moved certain files into new "Utils" folder.

* GetExporterMap uses a reference now

* Minor fixes and updates.

* Moved utility code into its own library

* Fixed merge issues

* Fixed compilation issue

* Added missing classes

* Updated makefile

* Minor update

* Forgot to make an enum an 'enum class'

* Minor fix

* Few more adjustments

* Bug fix

* Another bug fix

* Bug fix again

* added comment

* New functions added for exporters

* Made certain fields public

Co-authored-by: Jack Walker <7463599+Jack-Walker@users.noreply.github.com>

1 files changed, 96 insertions, 0 deletions

diff --git a/ZAPDUtils/Utils/MemoryStream.cpp b/ZAPDUtils/Utils/MemoryStream.cpp
new file mode 100644
index 0000000..6c27399
--- /dev/null
+++ b/ZAPDUtils/Utils/MemoryStream.cpp
@@ -0,0 +1,96 @@
+#include "MemoryStream.h"
+#include <string.h>
+
+#ifndef _MSC_VER
+#define memcpy_s(dest, destSize, source, sourceSize) memcpy(dest, source, destSize)
+#endif
+
+MemoryStream::MemoryStream()
+{
+	buffer = std::vector<char>();
+	bufferSize = 0;
+	baseAddress = 0;
+}
+
+MemoryStream::MemoryStream(char* nBuffer, size_t nBufferSize) : MemoryStream()
+{
+	buffer = std::vector<char>(nBuffer, nBuffer + nBufferSize);
+	bufferSize = nBufferSize;
+	baseAddress = 0;
+}
+
+MemoryStream::~MemoryStream()
+{
+}
+
+uint64_t MemoryStream::GetLength()
+{
+	return buffer.size();
+}
+
+void MemoryStream::Seek(int32_t offset, SeekOffsetType seekType)
+{
+	if (seekType == SeekOffsetType::Start)
+		baseAddress = offset;
+	else if (seekType == SeekOffsetType::Current)
+		baseAddress += offset;
+	else if (seekType == SeekOffsetType::End)
+		baseAddress = bufferSize - 1 - offset;
+}
+
+std::unique_ptr<char[]> MemoryStream::Read(size_t length)
+{
+	std::unique_ptr<char[]> result = std::make_unique<char[]>(length);
+
+	memcpy_s(result.get(), length, &buffer[baseAddress], length);
+	baseAddress += length;
+
+	return result;
+}
+
+void MemoryStream::Read(const char* dest, size_t length)
+{
+	memcpy_s((void*)dest, length, &buffer[baseAddress], length);
+	baseAddress += length;
+}
+
+int8_t MemoryStream::ReadByte()
+{
+	return buffer[baseAddress++];
+}
+
+void MemoryStream::Write(char* srcBuffer, size_t length)
+{
+	if (baseAddress + length >= buffer.size())
+	{
+		buffer.resize(baseAddress + length);
+		bufferSize += length;
+	}
+
+	memcpy_s(&buffer[baseAddress], length, srcBuffer, length);
+	baseAddress += length;
+}
+
+void MemoryStream::WriteByte(int8_t value)
+{
+	if (baseAddress >= buffer.size())
+	{
+		buffer.resize(baseAddress + 1);
+		bufferSize = baseAddress;
+	}
+
+	buffer[baseAddress++] = value;
+}
+
+std::vector<char> MemoryStream::ToVector()
+{
+	return buffer;
+}
+
+void MemoryStream::Flush()
+{
+}
+
+void MemoryStream::Close()
+{
+}
\ No newline at end of file