Start work on CFloat32Data3DGPU to allow persistent/external GPU memory

1 files changed, 98 insertions, 0 deletions

diff --git a/src/Float32Data3DGPU.cpp b/src/Float32Data3DGPU.cpp
new file mode 100644
index 0000000..cd9c4ad
--- /dev/null
+++ b/src/Float32Data3DGPU.cpp
@@ -0,0 +1,98 @@
+/*
+-----------------------------------------------------------------------
+Copyright: 2010-2015, iMinds-Vision Lab, University of Antwerp
+           2014-2015, CWI, Amsterdam
+
+Contact: astra@uantwerpen.be
+Website: http://sf.net/projects/astra-toolbox
+
+This file is part of the ASTRA Toolbox.
+
+
+The ASTRA Toolbox 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, either version 3 of the License, or
+(at your option) any later version.
+
+The ASTRA Toolbox 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 the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+
+-----------------------------------------------------------------------
+$Id$
+*/
+
+#include "astra/Float32Data3DGPU.h"
+
+namespace astra {
+
+//----------------------------------------------------------------------------------------
+// Default constructor.
+CFloat32Data3DGPU::CFloat32Data3DGPU()
+{
+	_clear();
+	m_bInitialized = false;
+}
+
+//----------------------------------------------------------------------------------------
+// Destructor.
+CFloat32Data3DGPU::~CFloat32Data3DGPU() 
+{
+	if (m_bInitialized)
+	{
+		_unInit();
+	}
+}
+
+//----------------------------------------------------------------------------------------
+// Initializes an instance of the CFloat32Data3DGPU class with pre-allocated memory
+bool CFloat32Data3DGPU::_initialize(int _iWidth, int _iHeight, int _iDepth, astraCUDA3d::MemHandle3D _hnd)
+{
+	// basic checks
+	ASTRA_ASSERT(_iWidth > 0);
+	ASTRA_ASSERT(_iHeight > 0);
+	ASTRA_ASSERT(_iDepth > 0);
+	//ASTRA_ASSERT(_pCustomMemory != NULL);
+
+	if (m_bInitialized) {
+		_unInit();
+	}
+
+	// calculate size
+	m_iWidth = _iWidth;
+	m_iHeight = _iHeight;
+	m_iDepth = _iDepth;
+	m_iSize = (size_t)m_iWidth * m_iHeight * m_iDepth;
+
+	m_hnd = _hnd;
+
+	// initialization complete
+	return true;
+}
+//----------------------------------------------------------------------------------------
+// Clear all member variables, setting all numeric variables to 0 and all pointers to NULL. 
+void CFloat32Data3DGPU::_clear()
+{
+	m_iWidth = 0;
+	m_iHeight = 0;
+	m_iDepth = 0;
+	m_iSize = 0;
+
+	m_hnd.d.reset();
+}
+
+//----------------------------------------------------------------------------------------
+// Un-initialize the object, bringing it back in the unitialized state.
+void CFloat32Data3DGPU::_unInit()
+{
+	ASTRA_ASSERT(m_bInitialized);
+
+	_clear();
+	m_bInitialized = false;
+}
+
+} // end namespace astra