From ca32c59a58d37c1822e185a2d5f3d0d3e8943593 Mon Sep 17 00:00:00 2001
From: Marijn Tamis <mtamis@nvidia.com>
Date: Thu, 3 May 2018 18:22:48 +0200
Subject: NvCloth 1.1.4 Release. (24070740)

---
 NvCloth/samples/SampleBase/utils/DataStream.h | 72 +++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 NvCloth/samples/SampleBase/utils/DataStream.h

(limited to 'NvCloth/samples/SampleBase/utils/DataStream.h')

diff --git a/NvCloth/samples/SampleBase/utils/DataStream.h b/NvCloth/samples/SampleBase/utils/DataStream.h
new file mode 100644
index 0000000..c47da39
--- /dev/null
+++ b/NvCloth/samples/SampleBase/utils/DataStream.h
@@ -0,0 +1,72 @@
+/*
+* Copyright (c) 2008-2017, NVIDIA CORPORATION.  All rights reserved.
+*
+* NVIDIA CORPORATION and its licensors retain all intellectual property
+* and proprietary rights in and to this software, related documentation
+* and any modifications thereto.  Any use, reproduction, disclosure or
+* distribution of this software and related documentation without an express
+* license agreement from NVIDIA CORPORATION is strictly prohibited.
+*/
+
+#pragma once
+#include <vector>
+#include <string>
+#include <assert.h>
+
+class DataStream
+{
+public:
+	DataStream();
+	DataStream(void* data, int sizeInBytes);
+	DataStream(const char* filename);
+	static bool fileExists(const char* filename);
+
+	void saveToFile(const char* filename);
+
+	template<typename T>
+	void write(T& value)
+	{
+		if(mBuffer.size() < mWritePos + sizeof(T))
+			mBuffer.resize(mWritePos + sizeof(T));
+		memcpy(&mBuffer[mWritePos], &value, sizeof(T));
+		mWritePos += sizeof(T);
+	}
+	template<>
+	void write<std::string>(std::string& value)
+	{
+		int len = (int)value.length();
+		if(mBuffer.size() < mWritePos + len + sizeof(int))
+			mBuffer.resize(mWritePos + len + sizeof(int));
+		memcpy(&mBuffer[mWritePos], &len, sizeof(int));
+		mWritePos += sizeof(int);
+		memcpy(&mBuffer[mWritePos], value.c_str(), len);
+		mWritePos += len;
+	}
+
+	void write(void* data, int sizeInBytes);
+
+	template<typename T>
+	T read()
+	{
+		T value;
+		assert(mReadPos + sizeof(T) <= mBuffer.size());
+		memcpy(&value, &mBuffer[mReadPos], sizeof(T));
+		mReadPos += sizeof(T);
+		return value;
+	}
+	template<>
+	std::string read<std::string>()
+	{
+		int len = read<int>();
+		std::string value;
+		value.resize(len);
+		assert(mReadPos + len < (int)mBuffer.size());
+		memcpy(&value[0], &mBuffer[mReadPos], len);
+		mReadPos += len;
+		return value;
+	}
+private:
+	std::vector<unsigned char> mBuffer;
+	int mReadPos;
+	int mWritePos;
+};
\ No newline at end of file
-- 
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