M4Memory.h

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// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "vdecmpeg4.h"
#include "M4Global.h"
#include "M4MemOps.h"
 
namespace vdecmpeg4
{
 
#define  M4_MEMORY_HANDLER                              \
public:                                                 \
    void* operator new(size_t)                          \
    {                                                   \
        M4CHECK(false && "new not allowed");                \
        return (void*)1;                                \
    }                                                   \
    void operator delete[](void*)                       \
    {                                                   \
        M4CHECK(false && "delete[] not allowed");           \
    }                                                   \
    void* operator new[](size_t)                        \
    {                                                   \
        M4CHECK(false && "new[] not allowed");          \
        return (void*)1;                                \
    }
 
 
 
class M4MemHandler
{
public:
    void init(VIDAllocator cbMem, VIDDeallocator cbFree)
    {
        mAllocCB = cbMem;
        mFreeCB = cbFree;
    }
 
    void* malloc(size_t size, size_t alignment = 32)
    {
        M4CHECK(mAllocCB);
        void* ptr = (*mAllocCB)((uint32)size, (uint32)alignment);
        return ptr;
    }
 
    void free(void* ptr)
    {
        M4CHECK(mFreeCB);
        if (ptr)
        {
            (*mFreeCB)(ptr);
        }
    }
 
private:
    VIDAllocator                mAllocCB;
    VIDDeallocator              mFreeCB;
};
 
 
}