aboutsummaryrefslogtreecommitdiff
path: root/sdk/common/NvBlastFixedBoolArray.h
diff options
context:
space:
mode:
authorBryan Galdrikian <[email protected]>2017-02-24 09:32:20 -0800
committerBryan Galdrikian <[email protected]>2017-02-24 09:32:20 -0800
commite1bf674c16e3c8472b29574159c789cd3f0c64e0 (patch)
tree9f0cfce09c71a2c27ff19589fcad6cd83504477c /sdk/common/NvBlastFixedBoolArray.h
parentfirst commit (diff)
downloadblast-e1bf674c16e3c8472b29574159c789cd3f0c64e0.tar.xz
blast-e1bf674c16e3c8472b29574159c789cd3f0c64e0.zip
Updating to [email protected] and [email protected] with a new directory structure.
NvBlast folder is gone, files have been moved to top level directory. README is changed to reflect this.
Diffstat (limited to 'sdk/common/NvBlastFixedBoolArray.h')
-rw-r--r--sdk/common/NvBlastFixedBoolArray.h106
1 files changed, 106 insertions, 0 deletions
diff --git a/sdk/common/NvBlastFixedBoolArray.h b/sdk/common/NvBlastFixedBoolArray.h
new file mode 100644
index 0000000..253bed6
--- /dev/null
+++ b/sdk/common/NvBlastFixedBoolArray.h
@@ -0,0 +1,106 @@
+/*
+* Copyright (c) 2016-2017, 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.
+*/
+
+#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