ksys/phys: Add HavokMemoryAllocator

lib/hkStubs/CMakeLists.txt

@@ -57,6 +57,7 @@ add_library(hkStubs OBJECT
 
   Havok/Common/Base/Memory/Allocator/hkMemoryAllocator.h
   Havok/Common/Base/Memory/Allocator/Lifo/hkLifoAllocator.h
+  Havok/Common/Base/Memory/Allocator/Malloc/hkMallocAllocator.h
   Havok/Common/Base/Memory/Router/hkMemoryRouter.h
   Havok/Common/Base/Memory/Util/hkMemUtil.h
 

lib/hkStubs/Havok/Common/Base/Memory/Allocator/Malloc/hkMallocAllocator.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <Havok/Common/Base/hkBase.h>
+
+class hkMallocAllocator : public hkMemoryAllocator {
+public:
+    explicit hkMallocAllocator(int align = HK_REAL_ALIGNMENT)
+        : m_align(align), m_currentUsed(0), m_peakUse(0) {}
+
+    void* blockAlloc(int numBytes) override;
+    void blockFree(void* p, int numBytes) override;
+
+    void getMemoryStatistics(hkMemoryAllocator::MemoryStatistics& u) const override;
+    int getAllocatedSize(const void* obj, int nbytes) const override;
+    void resetPeakMemoryStatistics() override;
+
+    int m_align;
+
+    static hkMemoryAllocator* m_defaultMallocAllocator;
+
+protected:
+    hkUint32 m_unused;
+    hkUint32 m_currentUsed;
+    hkUint32 m_peakUse;
+};

lib/hkStubs/Havok/Common/Base/Memory/Allocator/hkMemoryAllocator.h

@@ -2,6 +2,11 @@
 
 #include <Havok/Common/Base/Types/hkBaseTypes.h>
 
+#define HK_DECLARE_PLACEMENT_ALLOCATOR()                                                           \
+    HK_FORCE_INLINE void* operator new(hk_size_t, void* p) { return p; }                           \
+    HK_FORCE_INLINE void operator delete(void*, void*) {}                                          \
+    HK_FORCE_INLINE void operator delete(void*, hk_size_t) {}
+
 class hkMemorySnapshot;
 
 template <typename T>
@@ -16,6 +21,8 @@ struct hkSizeOfTypeOrVoid<void> {
 
 class hkMemoryAllocator {
 public:
+    HK_DECLARE_PLACEMENT_ALLOCATOR()
+
     using MemoryWalkCallback = void (*)(void* start, hk_size_t size, bool allocated, int pool,
                                         void* param);
 

lib/hkStubs/Havok/Common/Base/Object/hkBaseObject.h

@@ -2,6 +2,13 @@
 
 class hkBaseObject {
 public:
+    HK_DECLARE_PLACEMENT_ALLOCATOR()
+
+    HK_FORCE_INLINE explicit hkBaseObject(hkFinishLoadedObjectFlag flag) {}
+
     virtual ~hkBaseObject() = default;
     virtual void __first_virtual_table_function__() {}  // NOLINT(bugprone-reserved-identifier)
+
+protected:
+    HK_FORCE_INLINE hkBaseObject() = default;
 };

lib/hkStubs/Havok/Common/Base/Object/hkReferencedObject.cpp

@@ -1,4 +1,4 @@
-#include <Havok/Common/Base/Object/hkReferencedObject.h>
+#include <Havok/Common/Base/hkBase.h>
 
 const hkClass* hkReferencedObject::getClassType() const {
     return nullptr;

lib/hkStubs/Havok/Common/Base/Types/hkBaseTypes.h

@@ -9,6 +9,9 @@ using hkFloat32 = float;
 using hkDouble64 = double;
 using hkReal = hkFloat32;
 #define HK_REAL_IS_FLOAT
+#define HK_FLOAT_ALIGNMENT 16
+#define HK_DOUBLE_ALIGNMENT 32
+#define HK_REAL_ALIGNMENT HK_FLOAT_ALIGNMENT
 
 using hkChar = char;
 using hkInt8 = std::int8_t;

lib/hkStubs/Havok/Common/Base/hkBase.h

@@ -1,9 +1,12 @@
 #pragma once
 
+#include <Havok/Common/Base/Types/hkBaseDefs.h>
+#include <Havok/Common/Base/Types/hkBaseTypes.h>
+
+#include <Havok/Common/Base/Memory/Allocator/hkMemoryAllocator.h>
+
 #include <Havok/Common/Base/Object/hkBaseObject.h>
 #include <Havok/Common/Base/Object/hkReferencedObject.h>
-#include <Havok/Common/Base/Types/hkBaseDefs.h>
-#include <Havok/Common/Base/Types/hkBaseTypes.h>
 #include <Havok/Common/Base/Types/hkRefPtr.h>
 #include <Havok/Common/Base/Types/hkRefVariant.h>
 #include <Havok/Common/Base/Types/hkUFloat8.h>