--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/deps/Platinum/ThirdParty/Neptune/Source/Core/NptDataBuffer.cpp	Mon Jul 06 08:06:28 2009 -0700
@@ -0,0 +1,256 @@
+/*****************************************************************
+|
+|   Neptune - Data Buffer
+|
+| Copyright (c) 2002-2008, Axiomatic Systems, LLC.
+| All rights reserved.
+|
+| Redistribution and use in source and binary forms, with or without
+| modification, are permitted provided that the following conditions are met:
+|     * Redistributions of source code must retain the above copyright
+|       notice, this list of conditions and the following disclaimer.
+|     * Redistributions in binary form must reproduce the above copyright
+|       notice, this list of conditions and the following disclaimer in the
+|       documentation and/or other materials provided with the distribution.
+|     * Neither the name of Axiomatic Systems nor the
+|       names of its contributors may be used to endorse or promote products
+|       derived from this software without specific prior written permission.
+|
+| THIS SOFTWARE IS PROVIDED BY AXIOMATIC SYSTEMS ''AS IS'' AND ANY
+| EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+| DISCLAIMED. IN NO EVENT SHALL AXIOMATIC SYSTEMS BE LIABLE FOR ANY
+| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+|
+ ****************************************************************/
+
+/*----------------------------------------------------------------------
+|   includes
++---------------------------------------------------------------------*/
+#include "NptDataBuffer.h"
+#include "NptUtils.h"
+#include "NptResults.h"
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::NPT_DataBuffer
++---------------------------------------------------------------------*/
+NPT_DataBuffer::NPT_DataBuffer() :
+    m_BufferIsLocal(true),
+    m_Buffer(NULL),
+    m_BufferSize(0),
+    m_DataSize(0)
+{
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::NPT_DataBuffer
++---------------------------------------------------------------------*/
+NPT_DataBuffer::NPT_DataBuffer(NPT_Size bufferSize) :
+    m_BufferIsLocal(true),
+    m_Buffer(bufferSize?new NPT_Byte[bufferSize]:NULL),
+    m_BufferSize(bufferSize),
+    m_DataSize(0)
+{
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::NPT_DataBuffer
++---------------------------------------------------------------------*/
+NPT_DataBuffer::NPT_DataBuffer(const void* data, NPT_Size data_size, bool copy) :
+    m_BufferIsLocal(copy),
+    m_Buffer(copy?(data_size?new NPT_Byte[data_size]:NULL):reinterpret_cast<NPT_Byte*>(const_cast<void*>(data))),
+    m_BufferSize(data_size),
+    m_DataSize(data_size)
+{
+    if (copy && data_size) NPT_CopyMemory(m_Buffer, data, data_size);
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::NPT_DataBuffer
++---------------------------------------------------------------------*/
+NPT_DataBuffer::NPT_DataBuffer(const NPT_DataBuffer& other) :
+    m_BufferIsLocal(true),
+    m_Buffer(NULL),
+    m_BufferSize(other.m_DataSize),
+    m_DataSize(other.m_DataSize)
+{
+    if (m_BufferSize) {
+        m_Buffer = new NPT_Byte[m_BufferSize];
+        NPT_CopyMemory(m_Buffer, other.m_Buffer, m_BufferSize);
+    }
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::~NPT_DataBuffer
++---------------------------------------------------------------------*/
+NPT_DataBuffer::~NPT_DataBuffer()
+{
+    Clear();
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::Clear
++---------------------------------------------------------------------*/
+NPT_Result
+NPT_DataBuffer::Clear()
+{
+    if (m_BufferIsLocal) {
+        delete[] m_Buffer;
+    }
+    m_Buffer = NULL;
+    m_DataSize = 0;
+    m_BufferSize = 0;
+
+    return NPT_SUCCESS;
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::operator=
++---------------------------------------------------------------------*/
+NPT_DataBuffer&
+NPT_DataBuffer::operator=(const NPT_DataBuffer& copy)
+{
+    // do nothing if we're assigning to ourselves
+    if (this != &copy) {
+        Clear();
+
+        m_BufferIsLocal = true;
+        m_BufferSize    = copy.m_BufferSize;
+        m_DataSize      = copy.m_DataSize;
+
+        if (m_BufferSize) {
+            m_Buffer = new NPT_Byte[m_BufferSize];
+            NPT_CopyMemory(m_Buffer, copy.m_Buffer, m_BufferSize);
+        }
+    }
+    return *this;
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::operator==
++---------------------------------------------------------------------*/
+bool
+NPT_DataBuffer::operator==(const NPT_DataBuffer& other) const
+{
+    // check that the sizes match
+    if (m_DataSize != other.m_DataSize) return false;
+
+    return NPT_MemoryEqual(m_Buffer,
+                           other.m_Buffer,
+                           m_DataSize);
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::SetBuffer
++---------------------------------------------------------------------*/
+NPT_Result
+NPT_DataBuffer::SetBuffer(NPT_Byte* buffer, NPT_Size buffer_size)
+{
+    Clear();
+
+    // we're now using an external buffer
+    m_BufferIsLocal = false;
+    m_Buffer = buffer;
+    m_BufferSize = buffer_size;
+    m_DataSize = 0;
+    
+    return NPT_SUCCESS;
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::SetBufferSize
++---------------------------------------------------------------------*/
+NPT_Result
+NPT_DataBuffer::SetBufferSize(NPT_Size buffer_size)
+{
+    if (m_BufferIsLocal) {
+        return ReallocateBuffer(buffer_size);
+    } else {
+        return NPT_ERROR_NOT_SUPPORTED; // you cannot change the
+                                        // buffer management mode
+    }
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::Reserve
++---------------------------------------------------------------------*/
+NPT_Result
+NPT_DataBuffer::Reserve(NPT_Size size)
+{
+    if (size <= m_BufferSize) return NPT_SUCCESS;
+
+    // try doubling the buffer to accomodate for the new size
+    NPT_Size new_size = m_BufferSize*2;
+    if (new_size < size) new_size = size;
+    return SetBufferSize(new_size);
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::SetDataSize
++---------------------------------------------------------------------*/
+NPT_Result
+NPT_DataBuffer::SetDataSize(NPT_Size size)
+{
+    if (size > m_BufferSize) {
+        // the buffer is too small, we need to reallocate it
+        if (m_BufferIsLocal) {
+            NPT_CHECK(ReallocateBuffer(size));
+        } else { 
+            // we cannot reallocate an external buffer
+            return NPT_ERROR_NOT_SUPPORTED;
+        }
+    }
+    m_DataSize = size;
+    return NPT_SUCCESS;
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::SetData
++---------------------------------------------------------------------*/
+NPT_Result
+NPT_DataBuffer::SetData(const NPT_Byte* data, NPT_Size size)
+{
+    if (size > m_BufferSize) {
+        if (m_BufferIsLocal) {
+            NPT_CHECK(ReallocateBuffer(size));
+        } else {
+            return NPT_ERROR_INVALID_STATE;
+        }
+    }
+    if (data) NPT_CopyMemory(m_Buffer, data, size);
+    m_DataSize = size;
+
+    return NPT_SUCCESS;
+}
+
+/*----------------------------------------------------------------------
+|   NPT_DataBuffer::ReallocateBuffer
++---------------------------------------------------------------------*/
+NPT_Result
+NPT_DataBuffer::ReallocateBuffer(NPT_Size size)
+{
+    // check that the existing data fits
+    if (m_DataSize > size) return NPT_ERROR_INVALID_PARAMETERS;
+
+    // allocate a new buffer
+    NPT_Byte* newBuffer = new NPT_Byte[size];
+
+    // copy the contents of the previous buffer, if any
+    if (m_Buffer && m_DataSize) {
+        NPT_CopyMemory(newBuffer, m_Buffer, m_DataSize);
+    }
+
+    // destroy the previous buffer
+    delete[] m_Buffer;
+
+    // use the new buffer
+    m_Buffer = newBuffer;
+    m_BufferSize = size;
+
+    return NPT_SUCCESS;
+}