📄 endianutils.hpp
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#ifndef __EndianUtils_hpp__#define __EndianUtils_hpp__ 1// =================================================================================================// ADOBE SYSTEMS INCORPORATED// Copyright 2006-2007 Adobe Systems Incorporated// All Rights Reserved//// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance with the terms// of the Adobe license agreement accompanying it.// =================================================================================================#include "XMP_Environment.h" // ! This must be the first include.#include "XMP_Const.h"// *** These should be in a more common location. The Unicode conversions of XMPCore have similar utils. // *** May want to improve with PowerPC swapping load/store, or SSE instructions.// =================================================================================================#define kLittleEndianHost (! kBigEndianHost)#if XMP_WinBuild #define kBigEndianHost 0#elif XMP_MacBuild #if __MWERKS__ #if __POWERPC__ #define kBigEndianHost 1 #else #error "CodeWarrior must only be for PowerPC" #endif #else // Must be an Xcode build. #if __BIG_ENDIAN__ #define kBigEndianHost 1 #elif __LITTLE_ENDIAN__ #define kBigEndianHost 0 #else #error "Neither __BIG_ENDIAN__ nor __LITTLE_ENDIAN__ is set" #endif #endif#elif XMP_UNIXBuild #error "Endian macros not set up for generic UNIX yet"#else #error "Unknown build environment"#endif// =================================================================================================typedef XMP_Uns16 (*GetUns16_Proc) ( const void* addr );typedef XMP_Uns32 (*GetUns32_Proc) ( const void* addr );typedef XMP_Uns64 (*GetUns64_Proc) ( const void* addr );typedef float (*GetFloat_Proc) ( const void* addr );typedef double (*GetDouble_Proc) ( const void* addr );typedef XMP_Uns16 (*MakeUns16_Proc) ( XMP_Uns16 value );typedef XMP_Uns32 (*MakeUns32_Proc) ( XMP_Uns32 value );typedef XMP_Uns64 (*MakeUns64_Proc) ( XMP_Uns64 value );typedef float (*MakeFloat_Proc) ( float value );typedef double (*MakeDouble_Proc) ( double value );typedef void (*PutUns16_Proc) ( XMP_Uns16 value, void* addr );typedef void (*PutUns32_Proc) ( XMP_Uns32 value, void* addr );typedef void (*PutUns64_Proc) ( XMP_Uns64 value, void* addr );typedef void (*PutFloat_Proc) ( float value, void* addr );typedef void (*PutDouble_Proc) ( double value, void* addr );// =================================================================================================static inline XMP_Uns16 Flip2 ( XMP_Uns16 value ){ value = ((value & 0x00FF) << 8) | ((value & 0xFF00) >> 8); return value;}// -------------------------------------------------------------------------------------------------static inline void Flip2 ( void * addr ){ XMP_Uns16 * u16Ptr = (XMP_Uns16*) addr; *u16Ptr = Flip2 ( *u16Ptr );}// -------------------------------------------------------------------------------------------------static inline XMP_Uns32 Flip4 ( XMP_Uns32 value ){ value = ((value & 0x000000FF) << 24) | ((value & 0x0000FF00) << 8) | ((value >> 8) & 0x0000FF00) | ((value >> 24) & 0x000000FF); return value;}// -------------------------------------------------------------------------------------------------static inline void Flip4 ( void * addr ){ XMP_Uns32 * u32Ptr = (XMP_Uns32*) addr; *u32Ptr = Flip4 ( *u32Ptr );}// -------------------------------------------------------------------------------------------------static inline XMP_Uns64 Flip8 ( XMP_Uns64 value ){ XMP_Uns32 oldLow = (XMP_Uns32)(value); XMP_Uns32 oldHigh = (XMP_Uns32)(value >> 32); return (((XMP_Uns64)Flip4(oldLow)) << 32) | ((XMP_Uns64)Flip4(oldHigh));}// -------------------------------------------------------------------------------------------------static inline void Flip8 ( void * addr ){ XMP_Uns64 * u64Ptr = (XMP_Uns64*) addr; *u64Ptr = Flip8 ( *u64Ptr );}// =================================================================================================static inline XMP_Uns16GetUns16BE ( const void * addr ){ XMP_Uns16 value = *((XMP_Uns16*)addr); if ( kLittleEndianHost ) value = Flip2 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline XMP_Uns16GetUns16LE ( const void * addr ){ XMP_Uns16 value = *((XMP_Uns16*)addr); if ( kBigEndianHost ) value = Flip2 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline XMP_Uns32GetUns32BE ( const void * addr ){ XMP_Uns32 value = *((XMP_Uns32*)addr); if ( kLittleEndianHost ) value = Flip4 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline XMP_Uns32GetUns32LE ( const void * addr ){ XMP_Uns32 value = *((XMP_Uns32*)addr); if ( kBigEndianHost ) value = Flip4 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline XMP_Uns64GetUns64BE ( const void * addr ){ XMP_Uns64 value = *((XMP_Uns64*)addr); if ( kLittleEndianHost ) value = Flip8 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline XMP_Uns64GetUns64LE ( const void * addr ){ XMP_Uns64 value = *((XMP_Uns64*)addr); if ( kBigEndianHost ) value = Flip8 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline floatGetFloatBE ( const void * addr ){ XMP_Uns32 value = *((XMP_Uns32*)addr); if ( kLittleEndianHost ) value = Flip4 ( value ); return *((float*)&value);}// -------------------------------------------------------------------------------------------------static inline floatGetFloatLE ( const void * addr ){ XMP_Uns32 value = *((XMP_Uns32*)addr); if ( kBigEndianHost ) value = Flip4 ( value ); return *((float*)&value);}// -------------------------------------------------------------------------------------------------static inline doubleGetDoubleBE ( const void * addr ){ XMP_Uns64 value = *((XMP_Uns64*)addr); if ( kLittleEndianHost ) value = Flip8 ( value ); return *((double*)&value);}// -------------------------------------------------------------------------------------------------static inline doubleGetDoubleLE ( const void * addr ){ XMP_Uns64 value = *((XMP_Uns64*)addr); if ( kBigEndianHost ) value = Flip8 ( value ); return *((double*)&value);}// =================================================================================================static inline XMP_Uns16MakeUns16BE ( XMP_Uns16 value ){ if ( kLittleEndianHost ) value = Flip2 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline XMP_Uns16MakeUns16LE ( XMP_Uns16 value ){ if ( kBigEndianHost ) value = Flip2 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline XMP_Uns32MakeUns32BE ( XMP_Uns32 value ){ if ( kLittleEndianHost ) value = Flip4 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline XMP_Uns32MakeUns32LE ( XMP_Uns32 value ){ if ( kBigEndianHost ) value = Flip4 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline XMP_Uns64MakeUns64BE ( XMP_Uns64 value ){ if ( kLittleEndianHost ) value = Flip8 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline XMP_Uns64MakeUns64LE ( XMP_Uns64 value ){ if ( kBigEndianHost ) value = Flip8 ( value ); return value;}// -------------------------------------------------------------------------------------------------static inline floatMakeFloatBE ( float value ){ if ( kLittleEndianHost ) { XMP_Uns32* intPtr = (XMP_Uns32*) &value; *intPtr = Flip4 ( *intPtr ); } return value;}// -------------------------------------------------------------------------------------------------static inline floatMakeFloatLE ( float value ){ if ( kBigEndianHost ) { XMP_Uns32* intPtr = (XMP_Uns32*) &value; *intPtr = Flip4 ( *intPtr ); } return value;}// -------------------------------------------------------------------------------------------------static inline doubleMakeDoubleBE ( double value ){ if ( kLittleEndianHost ) { XMP_Uns64* intPtr = (XMP_Uns64*) &value; *intPtr = Flip8 ( *intPtr ); } return value;}// -------------------------------------------------------------------------------------------------static inline doubleMakeDoubleLE ( double value ){ if ( kBigEndianHost ) { XMP_Uns64* intPtr = (XMP_Uns64*) &value; *intPtr = Flip8 ( *intPtr ); } return value;}// =================================================================================================static inline voidPutUns16BE ( XMP_Uns16 value, void * addr ){ if ( kLittleEndianHost ) value = Flip2 ( value ); *((XMP_Uns16*)addr) = value;}// -------------------------------------------------------------------------------------------------static inline voidPutUns16LE ( XMP_Uns16 value, void * addr ){ if ( kBigEndianHost ) value = Flip2 ( value ); *((XMP_Uns16*)addr) = value;}// -------------------------------------------------------------------------------------------------static inline voidPutUns32BE ( XMP_Uns32 value, void * addr ){ if ( kLittleEndianHost ) value = Flip4 ( value ); *((XMP_Uns32*)addr) = value;}// -------------------------------------------------------------------------------------------------static inline voidPutUns32LE ( XMP_Uns32 value, void * addr ){ if ( kBigEndianHost ) value = Flip4 ( value ); *((XMP_Uns32*)addr) = value;}// -------------------------------------------------------------------------------------------------static inline voidPutUns64BE ( XMP_Uns64 value, void * addr ){ if ( kLittleEndianHost ) value = Flip8 ( value ); *((XMP_Uns64*)addr) = value;}// -------------------------------------------------------------------------------------------------static inline voidPutUns64LE ( XMP_Uns64 value, void * addr ){ if ( kBigEndianHost ) value = Flip8 ( value ); *((XMP_Uns64*)addr) = value;}// -------------------------------------------------------------------------------------------------static inline voidPutFloatBE ( float value, void * addr ){ if ( kLittleEndianHost ) { XMP_Uns32* intPtr = (XMP_Uns32*) &value; *intPtr = Flip4 ( *intPtr ); } *((float*)addr) = value;}// -------------------------------------------------------------------------------------------------static inline voidPutFloatLE ( float value, void * addr ){ if ( kBigEndianHost ) { XMP_Uns32* intPtr = (XMP_Uns32*) &value; *intPtr = Flip4 ( *intPtr ); } *((float*)addr) = value;}// -------------------------------------------------------------------------------------------------static inline voidPutDoubleBE ( double value, void * addr ){ if ( kLittleEndianHost ) { XMP_Uns64* intPtr = (XMP_Uns64*) &value; *intPtr = Flip8 ( *intPtr ); } *((double*)addr) = value;}// -------------------------------------------------------------------------------------------------static inline voidPutDoubleLE ( double value, void * addr ){ if ( kBigEndianHost ) { XMP_Uns64* intPtr = (XMP_Uns64*) &value; *intPtr = Flip8 ( *intPtr ); } *((double*)addr) = value;}// =================================================================================================#endif // __EndianUtils_hpp__⌨️ 快捷键说明
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