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// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and 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.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2016-2018 NVIDIA Corporation. All rights reserved.
#ifndef NVBLASTFIXEDBOOLARRAY_H
#define NVBLASTFIXEDBOOLARRAY_H
#include "NvBlastAssert.h"
#include "NvBlastMemory.h"
#include <cstring>
namespace Nv
{
namespace Blast
{
/*!
FixedBoolArray is an array of bools of fixed size, it's intended to be used with placement new on chunk of memory.
It'll use following memory for data layout. As follows:
// some memory
char *buf = new char[64 * 1024];
const uint32_t size = 100;
// placement new on this memory
FixedBoolArray* arr = new (buf) FixedBoolArray(size);
// you can get max requiredMemorySize by an bitMap to use memory left
buf = buf + FixedBoolArray<SomeClass>::requiredMemorySize(size);
buf:
+------------------------------------------------------------+
| uint32_t | bool0 | bool1 | bool2 | ... |
+------------------------------------------------------------+
*/
class FixedBoolArray
{
public:
explicit FixedBoolArray(uint32_t size)
{
m_size = size;
}
static size_t requiredMemorySize(uint32_t size)
{
return align16(sizeof(FixedBoolArray)) + align16(size);
}
void clear()
{
memset(data(), 0, m_size);
}
void fill()
{
memset(data(), 1, m_size);
}
int test(uint32_t index) const
{
NVBLAST_ASSERT(index < m_size);
return data()[index];
}
void set(uint32_t index)
{
NVBLAST_ASSERT(index < m_size);
data()[index] = 1;
}
void reset(uint32_t index)
{
NVBLAST_ASSERT(index < m_size);
data()[index] = 0;
}
private:
uint32_t m_size;
NV_FORCE_INLINE char* data()
{
return ((char*)this + sizeof(FixedBoolArray));
}
NV_FORCE_INLINE const char* data() const
{
return ((char*)this + sizeof(FixedBoolArray));
}
private:
FixedBoolArray(const FixedBoolArray& that);
};
} // namespace Blast
} // namespace Nv
#endif // ifndef NVBLASTFIXEDBOOLARRAY_H
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