//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================

#ifndef DMXLOADER_H
#define DMXLOADER_H

#ifdef _WIN32
#pragma once
#endif

//-----------------------------------------------------------------------------
// Forward declarations
//-----------------------------------------------------------------------------
class CUtlBuffer;
class CDmxElement;

//-----------------------------------------------------------------------------
// Serialization/Unserialization
//-----------------------------------------------------------------------------
bool SerializeDMX(CUtlBuffer &buf, CDmxElement *pRoot,
                  const char *pFileName = NULL);
bool SerializeDMX(const char *pFileName, const char *pPathID, bool bTextMode,
                  CDmxElement *pRoot);

bool UnserializeDMX(CUtlBuffer &buf, CDmxElement **ppRoot,
                    const char *pFileName = NULL);
bool UnserializeDMX(const char *pFileName, const char *pPathID, bool bTextMode,
                    CDmxElement **ppRoot);

//-----------------------------------------------------------------------------
// DMX elements/attributes can only be accessed inside a dmx context
//-----------------------------------------------------------------------------
void BeginDMXContext();
void EndDMXContext(bool bDecommitMemory);
void DecommitDMXMemory();

//-----------------------------------------------------------------------------
// Helper macro
//-----------------------------------------------------------------------------
class CDMXContextHelper {
   public:
    CDMXContextHelper(bool bDecommitMemory) {
        m_bDecommitMemory = bDecommitMemory;
        BeginDMXContext();
    }
    ~CDMXContextHelper() { EndDMXContext(m_bDecommitMemory); }

   private:
    bool m_bDecommitMemory;
};

#define DECLARE_DMX_CONTEXT() CDMXContextHelper __dmxContextHelper(true);
#define DECLARE_DMX_CONTEXT_NODECOMMIT() \
    CDMXContextHelper __dmxContextHelper(false);
#define DECLARE_DMX_CONTEXT_DECOMMIT(_decommit) \
    CDMXContextHelper __dmxContextHelper(_decommit);

//-----------------------------------------------------------------------------
// Used for allocation. All will be freed when we leave the DMX context
//-----------------------------------------------------------------------------
void *DMXAlloc(size_t size);

//-----------------------------------------------------------------------------
// Helper macro
//-----------------------------------------------------------------------------
#define DECLARE_DMX_ALLOCATOR()                                                \
   public:                                                                     \
    inline void *operator new(size_t size) {                                   \
        MEM_ALLOC_CREDIT_("DMXAlloc");                                         \
        return DMXAlloc(size);                                                 \
    }                                                                          \
    inline void *operator new(size_t size, int nBlockUse,                      \
                              const char *pFileName, int nLine) {              \
        MEM_ALLOC_CREDIT_("DMXAlloc");                                         \
        return DMXAlloc(size);                                                 \
    }                                                                          \
    inline void operator delete(void *p) {}                                    \
    inline void operator delete(void *p, int nBlockUse, const char *pFileName, \
                                int nLine) {}

#endif  // DMXLOADER_H