diff options
| author | Brad Davis <[email protected]> | 2013-06-27 11:25:32 -0800 |
|---|---|---|
| committer | Brad Davis <[email protected]> | 2013-06-28 10:47:29 -0700 |
| commit | ebefcc885f74461cd0e3f19b5ae3622dc6cf6dbc (patch) | |
| tree | 2b16db7350fce54c2e6c1b1c4020d67419cb1164 /LibOVR/Src/Kernel/OVR_Allocator.cpp | |
| parent | 0ade748e1845694c5cbe562fb823e56f09773e27 (diff) | |
SDK 0.2.2
Diffstat (limited to 'LibOVR/Src/Kernel/OVR_Allocator.cpp')
| -rw-r--r-- | LibOVR/Src/Kernel/OVR_Allocator.cpp | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/LibOVR/Src/Kernel/OVR_Allocator.cpp b/LibOVR/Src/Kernel/OVR_Allocator.cpp new file mode 100644 index 0000000..1f17ffe --- /dev/null +++ b/LibOVR/Src/Kernel/OVR_Allocator.cpp @@ -0,0 +1,84 @@ +/************************************************************************************
+
+Filename : OVR_Allocator.cpp
+Content : Installable memory allocator implementation
+Created : September 19, 2012
+Notes :
+
+Copyright : Copyright 2012 Oculus VR, Inc. All Rights reserved.
+
+Use of this software is subject to the terms of the Oculus license
+agreement provided at the time of installation or download, or which
+otherwise accompanies this software in either electronic or hard copy form.
+
+************************************************************************************/
+
+#include "OVR_Allocator.h"
+#ifdef OVR_OS_MAC
+ #include <stdlib.h>
+#else
+ #include <malloc.h>
+#endif
+
+namespace OVR {
+
+//-----------------------------------------------------------------------------------
+// ***** Allocator
+
+Allocator* Allocator::pInstance = 0;
+
+// Default AlignedAlloc implementation will delegate to Alloc/Free after doing rounding.
+void* Allocator::AllocAligned(UPInt size, UPInt align)
+{
+ OVR_ASSERT((align & (align-1)) == 0);
+ align = (align > sizeof(UPInt)) ? align : sizeof(UPInt);
+ UPInt p = (UPInt)Alloc(size+align);
+ UPInt aligned = 0;
+ if (p)
+ {
+ aligned = (UPInt(p) + align-1) & ~(align-1);
+ if (aligned == p)
+ aligned += align;
+ *(((UPInt*)aligned)-1) = aligned-p;
+ }
+ return (void*)aligned;
+}
+
+void Allocator::FreeAligned(void* p)
+{
+ UPInt src = UPInt(p) - *(((UPInt*)p)-1);
+ Free((void*)src);
+}
+
+
+//------------------------------------------------------------------------
+// ***** Default Allocator
+
+// This allocator is created and used if no other allocator is installed.
+// Default allocator delegates to system malloc.
+
+void* DefaultAllocator::Alloc(UPInt size)
+{
+ return malloc(size);
+}
+void* DefaultAllocator::AllocDebug(UPInt size, const char* file, unsigned line)
+{
+#if defined(OVR_CC_MSVC) && defined(_CRTDBG_MAP_ALLOC)
+ return _malloc_dbg(size, _NORMAL_BLOCK, file, line);
+#else
+ OVR_UNUSED2(file, line);
+ return malloc(size);
+#endif
+}
+
+void* DefaultAllocator::Realloc(void* p, UPInt newSize)
+{
+ return realloc(p, newSize);
+}
+void DefaultAllocator::Free(void *p)
+{
+ return free(p);
+}
+
+
+} // OVR
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