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Diffstat (limited to 'Opcode/Ice/IceMemoryMacros.h')
| -rw-r--r-- | Opcode/Ice/IceMemoryMacros.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/Opcode/Ice/IceMemoryMacros.h b/Opcode/Ice/IceMemoryMacros.h new file mode 100644 index 0000000..490ecd1 --- /dev/null +++ b/Opcode/Ice/IceMemoryMacros.h @@ -0,0 +1,105 @@ +///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+/**
+ * Contains all memory macros.
+ * \file IceMemoryMacros.h
+ * \author Pierre Terdiman
+ * \date April, 4, 2000
+ */
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+// Include Guard
+#ifndef __ICEMEMORYMACROS_H__
+#define __ICEMEMORYMACROS_H__
+
+#undef ZeroMemory
+#undef CopyMemory
+#undef MoveMemory
+#undef FillMemory
+
+ //! Clears a buffer.
+ //! \param addr [in] buffer address
+ //! \param size [in] buffer length
+ //! \see FillMemory
+ //! \see StoreDwords
+ //! \see CopyMemory
+ //! \see MoveMemory
+ inline_ void ZeroMemory(void* addr, udword size) { memset(addr, 0, size); }
+
+ //! Fills a buffer with a given byte.
+ //! \param addr [in] buffer address
+ //! \param size [in] buffer length
+ //! \param val [in] the byte value
+ //! \see StoreDwords
+ //! \see ZeroMemory
+ //! \see CopyMemory
+ //! \see MoveMemory
+ inline_ void FillMemory(void* dest, udword size, ubyte val) { memset(dest, val, size); }
+
+ //! Fills a buffer with a given dword.
+ //! \param addr [in] buffer address
+ //! \param nb [in] number of dwords to write
+ //! \param value [in] the dword value
+ //! \see FillMemory
+ //! \see ZeroMemory
+ //! \see CopyMemory
+ //! \see MoveMemory
+ //! \warning writes nb*4 bytes !
+ inline_ void StoreDwords(udword* dest, udword nb, udword value)
+ {
+ // The asm code below **SHOULD** be equivalent to one of those C versions
+ // or the other if your compiled is good: (checked on VC++ 6.0)
+ //
+ // 1) while(nb--) *dest++ = value;
+ //
+ // 2) for(udword i=0;i<nb;i++) dest[i] = value;
+ //
+ _asm push eax
+ _asm push ecx
+ _asm push edi
+ _asm mov edi, dest
+ _asm mov ecx, nb
+ _asm mov eax, value
+ _asm rep stosd
+ _asm pop edi
+ _asm pop ecx
+ _asm pop eax
+ }
+
+ //! Copies a buffer.
+ //! \param addr [in] destination buffer address
+ //! \param addr [in] source buffer address
+ //! \param size [in] buffer length
+ //! \see ZeroMemory
+ //! \see FillMemory
+ //! \see StoreDwords
+ //! \see MoveMemory
+ inline_ void CopyMemory(void* dest, const void* src, udword size) { memcpy(dest, src, size); }
+
+ //! Moves a buffer.
+ //! \param addr [in] destination buffer address
+ //! \param addr [in] source buffer address
+ //! \param size [in] buffer length
+ //! \see ZeroMemory
+ //! \see FillMemory
+ //! \see StoreDwords
+ //! \see CopyMemory
+ inline_ void MoveMemory(void* dest, const void* src, udword size) { memmove(dest, src, size); }
+
+ #define SIZEOFOBJECT sizeof(*this) //!< Gives the size of current object. Avoid some mistakes (e.g. "sizeof(this)").
+ //#define CLEAROBJECT { memset(this, 0, SIZEOFOBJECT); } //!< Clears current object. Laziness is my business. HANDLE WITH CARE.
+ #define DELETESINGLE(x) if (x) { delete x; x = null; } //!< Deletes an instance of a class.
+ #define DELETEARRAY(x) if (x) { delete []x; x = null; } //!< Deletes an array.
+ #define SAFE_RELEASE(x) if (x) { (x)->Release(); (x) = null; } //!< Safe D3D-style release
+ #define SAFE_DESTRUCT(x) if (x) { (x)->SelfDestruct(); (x) = null; } //!< Safe ICE-style release
+
+#ifdef __ICEERROR_H__
+ #define CHECKALLOC(x) if(!x) return SetIceError("Out of memory.", EC_OUT_OF_MEMORY); //!< Standard alloc checking. HANDLE WITH CARE.
+#else
+ #define CHECKALLOC(x) if(!x) return false;
+#endif
+
+ //! Standard allocation cycle
+ #define SAFE_ALLOC(ptr, type, count) DELETEARRAY(ptr); ptr = new type[count]; CHECKALLOC(ptr);
+
+#endif // __ICEMEMORYMACROS_H__
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