00001 // $Id: hardwaremanager.h 1696 2006-08-13 10:21:04Z alex $ 00002 /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE 00003 ================================XARAHEADERSTART=========================== 00004 00005 Xara LX, a vector drawing and manipulation program. 00006 Copyright (C) 1993-2006 Xara Group Ltd. 00007 Copyright on certain contributions may be held in joint with their 00008 respective authors. See AUTHORS file for details. 00009 00010 LICENSE TO USE AND MODIFY SOFTWARE 00011 ---------------------------------- 00012 00013 This file is part of Xara LX. 00014 00015 Xara LX is free software; you can redistribute it and/or modify it 00016 under the terms of the GNU General Public License version 2 as published 00017 by the Free Software Foundation. 00018 00019 Xara LX and its component source files are distributed in the hope 00020 that it will be useful, but WITHOUT ANY WARRANTY; without even the 00021 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 00022 See the GNU General Public License for more details. 00023 00024 You should have received a copy of the GNU General Public License along 00025 with Xara LX (see the file GPL in the root directory of the 00026 distribution); if not, write to the Free Software Foundation, Inc., 51 00027 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00028 00029 00030 ADDITIONAL RIGHTS 00031 ----------------- 00032 00033 Conditional upon your continuing compliance with the GNU General Public 00034 License described above, Xara Group Ltd grants to you certain additional 00035 rights. 00036 00037 The additional rights are to use, modify, and distribute the software 00038 together with the wxWidgets library, the wxXtra library, and the "CDraw" 00039 library and any other such library that any version of Xara LX relased 00040 by Xara Group Ltd requires in order to compile and execute, including 00041 the static linking of that library to XaraLX. In the case of the 00042 "CDraw" library, you may satisfy obligation under the GNU General Public 00043 License to provide source code by providing a binary copy of the library 00044 concerned and a copy of the license accompanying it. 00045 00046 Nothing in this section restricts any of the rights you have under 00047 the GNU General Public License. 00048 00049 00050 SCOPE OF LICENSE 00051 ---------------- 00052 00053 This license applies to this program (XaraLX) and its constituent source 00054 files only, and does not necessarily apply to other Xara products which may 00055 in part share the same code base, and are subject to their own licensing 00056 terms. 00057 00058 This license does not apply to files in the wxXtra directory, which 00059 are built into a separate library, and are subject to the wxWindows 00060 license contained within that directory in the file "WXXTRA-LICENSE". 00061 00062 This license does not apply to the binary libraries (if any) within 00063 the "libs" directory, which are subject to a separate license contained 00064 within that directory in the file "LIBS-LICENSE". 00065 00066 00067 ARRANGEMENTS FOR CONTRIBUTION OF MODIFICATIONS 00068 ---------------------------------------------- 00069 00070 Subject to the terms of the GNU Public License (see above), you are 00071 free to do whatever you like with your modifications. However, you may 00072 (at your option) wish contribute them to Xara's source tree. You can 00073 find details of how to do this at: 00074 http://www.xaraxtreme.org/developers/ 00075 00076 Prior to contributing your modifications, you will need to complete our 00077 contributor agreement. This can be found at: 00078 http://www.xaraxtreme.org/developers/contribute/ 00079 00080 Please note that Xara will not accept modifications which modify any of 00081 the text between the start and end of this header (marked 00082 XARAHEADERSTART and XARAHEADEREND). 00083 00084 00085 MARKS 00086 ----- 00087 00088 Xara, Xara LX, Xara X, Xara X/Xtreme, Xara Xtreme, the Xtreme and Xara 00089 designs are registered or unregistered trademarks, design-marks, and/or 00090 service marks of Xara Group Ltd. All rights in these marks are reserved. 00091 00092 00093 Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK. 00094 http://www.xara.com/ 00095 00096 =================================XARAHEADEREND============================ 00097 */ 00098 #ifndef INC_HWMAN 00099 #define INC_HWMAN 00100 00101 00102 /******************************************************************************* 00103 > namespace oilHardwareManager 00104 00105 Author: Phil Martin (Xara Group Ltd) <camelotdev@xara.com> 00106 Created: 13/12/2005 00107 Purpose: Provide the kernel with an invariant API to handle differences 00108 in hardware (primarilly Byte ordering) 00109 Notes: LE means "Little-Endian" (e.g. Intel) 00110 BE means "Big-Endian" (e.g. PowerPC) 00111 Native means whichever is the native byte ordering on the current 00112 platform 00113 00114 *******************************************************************************/ 00115 00116 namespace oilHardwareManager 00117 { 00118 // Avoid aliasing problems 00119 union DoubleUnion 00120 { 00121 double u_double; 00122 INT64 u_INT64; 00123 }; 00124 00125 union FloatUnion 00126 { 00127 float u_float; 00128 INT32 u_INT32; 00129 }; 00130 00131 // Byte ordering functions 00132 #if defined(WORDS_BIGENDIAN) 00133 // __BIG_ENDIAN__ 00134 // Big-Endian hardware, signed 00135 static inline INT16 BEtoNative(INT16 n) {return n;} 00136 static inline INT32 BEtoNative(INT32 n) {return n;} 00137 static inline INT64 BEtoNative(INT64 n) {return n;} 00138 00139 static inline INT16 LEtoNative(INT16 n) {return wxINT16_SWAP_ALWAYS(n);} 00140 static inline INT32 LEtoNative(INT32 n) {return wxINT32_SWAP_ALWAYS(n);} 00141 static inline INT64 LEtoNative(INT64 n) {return wxINT64_SWAP_ALWAYS(n);} 00142 00143 static inline INT16 NativetoBE(INT16 n) {return n;} 00144 static inline INT32 NativetoBE(INT32 n) {return n;} 00145 static inline INT64 NativetoBE(INT64 n) {return n;} 00146 00147 static inline INT16 NativetoLE(INT16 n) {return wxINT16_SWAP_ALWAYS(n);} 00148 static inline INT32 NativetoLE(INT32 n) {return wxINT32_SWAP_ALWAYS(n);} 00149 static inline INT64 NativetoLE(INT64 n) {return wxINT64_SWAP_ALWAYS(n);} 00150 00151 // Big-Endian hardware, unsigned 00152 static inline UINT16 BEtoNative(UINT16 n) {return n;} 00153 static inline UINT32 BEtoNative(UINT32 n) {return n;} 00154 static inline UINT64 BEtoNative(UINT64 n) {return n;} 00155 00156 static inline UINT16 LEtoNative(UINT16 n) {return wxUINT16_SWAP_ALWAYS(n);} 00157 static inline UINT32 LEtoNative(UINT32 n) {return wxUINT32_SWAP_ALWAYS(n);} 00158 static inline UINT64 LEtoNative(UINT64 n) {return wxUINT64_SWAP_ALWAYS(n);} 00159 00160 static inline UINT16 NativetoBE(UINT16 n) {return n;} 00161 static inline UINT32 NativetoBE(UINT32 n) {return n;} 00162 static inline UINT64 NativetoBE(UINT64 n) {return n;} 00163 00164 static inline UINT16 NativetoLE(UINT16 n) {return wxUINT16_SWAP_ALWAYS(n);} 00165 static inline UINT32 NativetoLE(UINT32 n) {return wxUINT32_SWAP_ALWAYS(n);} 00166 static inline UINT64 NativetoLE(UINT64 n) {return wxUINT64_SWAP_ALWAYS(n);} 00167 00168 // Big-endian, special types 00169 static inline FIXED16 BEtoNative(FIXED16 n) {return n;} 00170 static inline FIXED16 LEtoNative(FIXED16 n) {return FIXED16::FromRawLong(wxINT32_SWAP_ALWAYS(n.GetRawLong()));} 00171 static inline FIXED16 NativetoBE(FIXED16 n) {return n;} 00172 static inline FIXED16 NativetoLE(FIXED16 n) {return FIXED16::FromRawLong(wxINT32_SWAP_ALWAYS(n.GetRawLong()));} 00173 00174 static inline float BEtoNative(FloatUnion n) {return n.u_float;} 00175 static inline float LEtoNative(FloatUnion n) {n.u_INT32 = wxINT32_SWAP_ALWAYS(n.u_INT32); return n.u_float;} 00176 static inline FloatUnion NativetoBEU(float n) {FloatUnion f; f.u_float=n; return f;} 00177 static inline FloatUnion NativetoLEU(float n) {FloatUnion f; f.u_float=n; f.u_INT32 = wxINT32_SWAP_ALWAYS(f.u_INT32); return f;} 00178 00179 static inline double BEtoNative(DoubleUnion n) {return n.u_double;} 00180 static inline double LEtoNative(DoubleUnion n) {n.u_INT64 = wxINT64_SWAP_ALWAYS(n.u_INT64); return n.u_double;} 00181 static inline DoubleUnion NativetoBEU(double n) {DoubleUnion f; f.u_double=n; return f;} 00182 static inline DoubleUnion NativetoLEU(double n) {DoubleUnion f; f.u_double=n; f.u_INT64 = wxINT64_SWAP_ALWAYS(f.u_INT64); return f;} 00183 00184 #else 00185 // __LITTLE_ENDIAN__ 00186 // Little-Endian, signed 00187 static inline INT16 BEtoNative(INT16 n) {return wxINT16_SWAP_ALWAYS(n);} 00188 static inline INT32 BEtoNative(INT32 n) {return wxINT32_SWAP_ALWAYS(n);} 00189 static inline INT64 BEtoNative(INT64 n) {return wxINT64_SWAP_ALWAYS(n);} 00190 00191 static inline INT16 LEtoNative(INT16 n) {return n;} 00192 static inline INT32 LEtoNative(INT32 n) {return n;} 00193 static inline INT64 LEtoNative(INT64 n) {return n;} 00194 00195 static inline INT16 NativetoBE(INT16 n) {return wxINT16_SWAP_ALWAYS(n);} 00196 static inline INT32 NativetoBE(INT32 n) {return wxINT32_SWAP_ALWAYS(n);} 00197 static inline INT64 NativetoBE(INT64 n) {return wxINT64_SWAP_ALWAYS(n);} 00198 00199 static inline INT16 NativetoLE(INT16 n) {return n;} 00200 static inline INT32 NativetoLE(INT32 n) {return n;} 00201 static inline INT64 NativetoLE(INT64 n) {return n;} 00202 00203 // Little-Endian, unsigned 00204 static inline UINT16 BEtoNative(UINT16 n) {return wxUINT16_SWAP_ALWAYS(n);} 00205 static inline UINT32 BEtoNative(UINT32 n) {return wxUINT32_SWAP_ALWAYS(n);} 00206 static inline UINT64 BEtoNative(UINT64 n) {return wxUINT64_SWAP_ALWAYS(n);} 00207 00208 static inline UINT16 LEtoNative(UINT16 n) {return n;} 00209 static inline UINT32 LEtoNative(UINT32 n) {return n;} 00210 static inline UINT64 LEtoNative(UINT64 n) {return n;} 00211 00212 static inline UINT16 NativetoBE(UINT16 n) {return wxUINT16_SWAP_ALWAYS(n);} 00213 static inline UINT32 NativetoBE(UINT32 n) {return wxUINT32_SWAP_ALWAYS(n);} 00214 static inline UINT64 NativetoBE(UINT64 n) {return wxUINT64_SWAP_ALWAYS(n);} 00215 00216 static inline UINT16 NativetoLE(UINT16 n) {return n;} 00217 static inline UINT32 NativetoLE(UINT32 n) {return n;} 00218 static inline UINT64 NativetoLE(UINT64 n) {return n;} 00219 00220 // Little-endian, special types 00221 static inline FIXED16 BEtoNative(FIXED16 n) {return FIXED16::FromRawLong(wxINT32_SWAP_ALWAYS(n.GetRawLong()));} 00222 static inline FIXED16 LEtoNative(FIXED16 n) {return n;} 00223 static inline FIXED16 NativetoBE(FIXED16 n) {return FIXED16::FromRawLong(wxINT32_SWAP_ALWAYS(n.GetRawLong()));} 00224 static inline FIXED16 NativetoLE(FIXED16 n) {return n;} 00225 00226 static inline float BEtoNative(FloatUnion n) {n.u_INT32 = wxINT32_SWAP_ALWAYS(n.u_INT32); return n.u_float;} 00227 static inline float LEtoNative(FloatUnion n) {return n.u_float;} 00228 static inline FloatUnion NativetoBEU(float n) {FloatUnion f; f.u_float=n; f.u_INT32 = wxINT32_SWAP_ALWAYS(f.u_INT32); return f;} 00229 static inline FloatUnion NativetoLEU(float n) {FloatUnion f; f.u_float=n; return f;} 00230 00231 static inline double BEtoNative(DoubleUnion n) {n.u_INT64 = wxINT64_SWAP_ALWAYS(n.u_INT64); return n.u_double;} 00232 static inline double LEtoNative(DoubleUnion n) {return n.u_double;} 00233 static inline DoubleUnion NativetoBEU(double n) {DoubleUnion f; f.u_double=n; f.u_INT64 = wxINT64_SWAP_ALWAYS(f.u_INT64); return f;} 00234 static inline DoubleUnion NativetoLEU(double n) {DoubleUnion f; f.u_double=n; return f;} 00235 #endif 00236 00237 // ------------------------------------------------------------------------------- 00238 // Native Unicode character width handling (XAR files always use UTF16) 00239 // Useful reference: http://en.wikipedia.org/wiki/Comparison_of_Unicode_encodings 00240 // 00241 PORTNOTE("WCHARSize", "Check conversion from UTF32 to UTF16 and vice-versa"); 00242 static inline WCHAR NativeToUTF16(WCHAR n) {return n;} // Just truncate at the moment 00243 static inline WCHAR UTF16ToNative(WCHAR n) {return n;} // Just truncate at the moment 00244 00245 }; 00246 00247 #endif // INC_HWMAN
1.4.4