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  1. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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  3. <title>PowerVR SDK</title>
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  12.       <p align="center"><font color="#808080" face="Arial" size="2">PowerVR Software Development Kit</a></font></p>
    13. 

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  14.     <td width="34%">
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  15.       <p align="right"><a href="http://www.powervr.com"><img border="0" src="PVRlogo.jpg" width="200" height="27"></a></p>
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  22. <div class="qindex"><a class="qindex" href="index.html">Main&nbsp;Page</a> | <a class="qindex" href="hierarchy.html">Class&nbsp;Hierarchy</a> | <a class="qindex" href="annotated.html">Class&nbsp;List</a> | <a class="qindex" href="files.html">File&nbsp;List</a> | <a class="qindex" href="functions.html">Class&nbsp;Members</a> | <a class="qindex" href="globals.html">File&nbsp;Members</a></div>
    23. 

  23. <h1>PVRTGlobal.h</h1><a href="PVRTGlobal_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="comment">/******************************************************************************</span>
    24. 

  24. 00002 <span class="comment"></span>
    25. 

  25. 00003 <span class="comment"> @File         PVRTGlobal.h</span>
    26. 

  26. 00004 <span class="comment"></span>
    27. 

  27. 00005 <span class="comment"> @Title        PVRTGlobal</span>
    28. 

  28. 00006 <span class="comment"></span>
    29. 

  29. 00007 <span class="comment"> @Version      </span>
    30. 

  30. 00008 <span class="comment"></span>
    31. 

  31. 00009 <span class="comment"> @Copyright    Copyright (C)  Imagination Technologies Limited.</span>
    32. 

  32. 00010 <span class="comment"></span>
    33. 

  33. 00011 <span class="comment"> @Platform     ANSI compatible</span>
    34. 

  34. 00012 <span class="comment"></span>
    35. 

  35. 00013 <span class="comment"> @Description  Global defines and typedefs for PVRTools</span>
    36. 

  36. 00014 <span class="comment"></span>
    37. 

  37. 00015 <span class="comment">******************************************************************************/</span>
    38. 

  38. 00016 <span class="preprocessor">#ifndef _PVRTGLOBAL_H_</span>
    39. 

  39. 00017 <span class="preprocessor"></span><span class="preprocessor">#define _PVRTGLOBAL_H_</span>
    40. 

  40. 00018 <span class="preprocessor"></span>
    41. 

  41. 00019 <span class="comment">/*!***************************************************************************</span>
    42. 

  42. 00020 <span class="comment"> Macros</span>
    43. 

  43. 00021 <span class="comment">*****************************************************************************/</span>
    44. 

  44. 00022 <span class="preprocessor">#define PVRT_MIN(a,b)            (((a) &lt; (b)) ? (a) : (b))</span>
    45. 

  45. 00023 <span class="preprocessor"></span><span class="preprocessor">#define PVRT_MAX(a,b)            (((a) &gt; (b)) ? (a) : (b))</span>
    46. 

  46. 00024 <span class="preprocessor"></span><span class="preprocessor">#define PVRT_CLAMP(x, l, h)      (PVRT_MIN((h), PVRT_MAX((x), (l))))</span>
    47. 

  47. 00025 <span class="preprocessor"></span>
    48. 

  48. <a name="l00026"></a><a class="code" href="PVRTGlobal_8h.html#a0">00026</a> <span class="comment">// avoid warning about unused parameter</span>
    49. 

  49. <a name="l00027"></a><a class="code" href="PVRTGlobal_8h.html#a1">00027</a> <span class="preprocessor">#define PVRT_UNREFERENCED_PARAMETER(x) ((void) x)</span>
    50. 

  50. <a name="l00028"></a><a class="code" href="PVRTGlobal_8h.html#a2">00028</a> <span class="preprocessor"></span>
    51. 

  51. 00029 <span class="preprocessor">#if defined(_WIN32) &amp;&amp; !defined(UNDER_CE) &amp;&amp; !defined(__SYMBIAN32__) &amp;&amp; !defined(__BADA__) &amp;&amp; !defined(__QT__)  </span><span class="comment">/* Windows desktop */</span>
    52. 

  52. 00030 <span class="preprocessor">    #define _CRTDBG_MAP_ALLOC</span>
    53. 

  53. <a name="l00031"></a><a class="code" href="PVRTGlobal_8h.html#a3">00031</a> <span class="preprocessor"></span><span class="preprocessor">    #include &lt;windows.h&gt;</span>
    54. 

  54. 00032 <span class="preprocessor">    #include &lt;crtdbg.h&gt;</span>
    55. 

  55. 00033 <span class="preprocessor">    #include &lt;tchar.h&gt;</span>
    56. 

  56. 00034 <span class="preprocessor">#endif</span>
    57. 

  57. 00035 <span class="preprocessor"></span>
    58. 

  58. 00036 <span class="preprocessor">#if defined(UNDER_CE)</span>
    59. 

  59. 00037 <span class="preprocessor"></span><span class="preprocessor">    #include &lt;windows.h&gt;</span>
    60. 

  60. 00038 
    61. 

  61. 00039 <span class="preprocessor">#ifndef _ASSERT</span>
    62. 

  62. 00040 <span class="preprocessor"></span><span class="preprocessor">    #ifdef _DEBUG</span>
    63. 

  63. 00041 <span class="preprocessor"></span><span class="preprocessor">        #define _ASSERT(X) { (X) ? 0 : DebugBreak(); }</span>
    64. 

  64. 00042 <span class="preprocessor"></span><span class="preprocessor">    #else</span>
    65. 

  65. 00043 <span class="preprocessor"></span><span class="preprocessor">        #define _ASSERT(X)</span>
    66. 

  66. 00044 <span class="preprocessor"></span><span class="preprocessor">    #endif</span>
    67. 

  67. 00045 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
    68. 

  68. 00046 <span class="preprocessor"></span>
    69. 

  69. 00047 <span class="preprocessor">#ifndef _ASSERTE</span>
    70. 

  70. 00048 <span class="preprocessor"></span><span class="preprocessor">    #ifdef _DEBUG</span>
    71. 

  71. 00049 <span class="preprocessor"></span><span class="preprocessor">        #define _ASSERTE _ASSERT</span>
    72. 

  72. 00050 <span class="preprocessor"></span><span class="preprocessor">    #else</span>
    73. 

  73. 00051 <span class="preprocessor"></span><span class="preprocessor">        #define _ASSERTE(X)</span>
    74. 

  74. 00052 <span class="preprocessor"></span><span class="preprocessor">    #endif</span>
    75. 

  75. 00053 <span class="preprocessor"></span><span class="preprocessor">#endif</span>
    76. 

  76. 00054 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT0(a,b)</span>
    77. 

  77. 00055 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT1(a,b,c)</span>
    78. 

  78. 00056 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT2(a,b,c,d)</span>
    79. 

  79. 00057 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT3(a,b,c,d,e)</span>
    80. 

  80. 00058 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT4(a,b,c,d,e,f)</span>
    81. 

  81. 00059 <span class="preprocessor"></span><span class="preprocessor">#else</span>
    82. 

  82. 00060 <span class="preprocessor"></span>
    83. 

  83. 00061 <span class="preprocessor">#if defined(_WIN32) &amp;&amp; !defined(__WINSCW__) &amp;&amp; !defined(__BADA__) &amp;&amp; !defined(__QT__)</span>
    84. 

  84. 00062 <span class="preprocessor"></span>
    85. 

  85. 00063 <span class="preprocessor">#else</span>
    86. 

  86. 00064 <span class="preprocessor"></span><span class="preprocessor">#if defined(__linux__) || defined(__APPLE__)</span>
    87. 

  87. 00065 <span class="preprocessor"></span><span class="preprocessor">    #define _ASSERT(a)((void)0)</span>
    88. 

  88. 00066 <span class="preprocessor"></span><span class="preprocessor">    #define _ASSERTE(a)((void)0)</span>
    89. 

  89. 00067 <span class="preprocessor"></span><span class="preprocessor">    #ifdef _DEBUG</span>
    90. 

  90. 00068 <span class="preprocessor"></span><span class="preprocessor">        #ifndef _RPT0</span>
    91. 

  91. 00069 <span class="preprocessor"></span><span class="preprocessor">        #define _RPT0(a,b) printf(b)</span>
    92. 

  92. 00070 <span class="preprocessor"></span><span class="preprocessor">        #endif</span>
    93. 

  93. 00071 <span class="preprocessor"></span><span class="preprocessor">        #ifndef _RPT1</span>
    94. 

  94. 00072 <span class="preprocessor"></span><span class="preprocessor">        #define _RPT1(a,b,c) printf(b,c)</span>
    95. 

  95. 00073 <span class="preprocessor"></span><span class="preprocessor">        #endif</span>
    96. 

  96. 00074 <span class="preprocessor"></span><span class="preprocessor">    #else</span>
    97. 

  97. 00075 <span class="preprocessor"></span><span class="preprocessor">        #ifndef _RPT0</span>
    98. 

  98. 00076 <span class="preprocessor"></span><span class="preprocessor">        #define _RPT0(a,b)((void)0)</span>
    99. 

  99. 00077 <span class="preprocessor"></span><span class="preprocessor">        #endif</span>
    100. 

  100. 00078 <span class="preprocessor"></span><span class="preprocessor">        #ifndef _RPT1</span>
    101. 

  101. 00079 <span class="preprocessor"></span><span class="preprocessor">        #define _RPT1(a,b,c)((void)0)</span>
    102. 

  102. 00080 <span class="preprocessor"></span><span class="preprocessor">        #endif</span>
    103. 

  103. 00081 <span class="preprocessor"></span><span class="preprocessor">    #endif</span>
    104. 

  104. 00082 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT2(a,b,c,d)((void)0)</span>
    105. 

  105. 00083 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT3(a,b,c,d,e)((void)0)</span>
    106. 

  106. 00084 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT4(a,b,c,d,e,f)((void)0)</span>
    107. 

  107. 00085 <span class="preprocessor"></span><span class="preprocessor">    #include &lt;stdlib.h&gt;</span>
    108. 

  108. 00086 <span class="preprocessor">    #include &lt;string.h&gt;</span>
    109. 

  109. 00087 <span class="preprocessor">    #define BYTE unsigned char</span>
    110. 

  110. 00088 <span class="preprocessor"></span><span class="preprocessor">    #define WORD unsigned short</span>
    111. 

  111. 00089 <span class="preprocessor"></span><span class="preprocessor">    #define DWORD unsigned long</span>
    112. 

  112. 00090 <span class="preprocessor"></span>    <span class="keyword">typedef</span> <span class="keyword">struct </span>tagRGBQUAD {
    113. 

  113. 00091     BYTE    rgbBlue;
    114. 

  114. 00092     BYTE    rgbGreen;
    115. 

  115. 00093     BYTE    rgbRed;
    116. 

  116. 00094     BYTE    rgbReserved;
    117. 

  117. 00095     } RGBQUAD;
    118. 

  118. 00096 <span class="preprocessor">    #define BOOL int</span>
    119. 

  119. 00097 <span class="preprocessor"></span><span class="preprocessor">    #define TRUE 1</span>
    120. 

  120. 00098 <span class="preprocessor"></span><span class="preprocessor">    #define FALSE 0</span>
    121. 

  121. 00099 <span class="preprocessor"></span><span class="preprocessor">#else</span>
    122. 

  122. 00100 <span class="preprocessor"></span><span class="preprocessor">    #define _CRT_WARN 0</span>
    123. 

  123. 00101 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT0(a,b)</span>
    124. 

  124. 00102 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT1(a,b,c)</span>
    125. 

  125. 00103 <span class="preprocessor"></span><span class="preprocessor">    #define _RPT2(a,b,c,d)</span>
    126. 

  126. <a name="l00104"></a><a class="code" href="PVRTGlobal_8h.html#a4">00104</a> <span class="preprocessor"></span><span class="preprocessor">    #define _RPT3(a,b,c,d,e)</span>
    127. 

  127. <a name="l00105"></a><a class="code" href="PVRTGlobal_8h.html#a5">00105</a> <span class="preprocessor"></span><span class="preprocessor">    #define _RPT4(a,b,c,d,e,f)</span>
    128. 

  128. <a name="l00106"></a><a class="code" href="PVRTGlobal_8h.html#a6">00106</a> <span class="preprocessor"></span><span class="preprocessor">    #define _ASSERT(X)</span>
    129. 

  129. <a name="l00107"></a><a class="code" href="PVRTGlobal_8h.html#a7">00107</a> <span class="preprocessor"></span><span class="preprocessor">    #define _ASSERTE(X)</span>
    130. 

  130. <a name="l00108"></a><a class="code" href="PVRTGlobal_8h.html#a8">00108</a> <span class="preprocessor"></span><span class="preprocessor">#endif</span>
    131. 

  131. <a name="l00109"></a><a class="code" href="PVRTGlobal_8h.html#a9">00109</a> <span class="preprocessor"></span><span class="preprocessor">#endif</span>
    132. 

  132. <a name="l00110"></a><a class="code" href="PVRTGlobal_8h.html#a10">00110</a> <span class="preprocessor"></span><span class="preprocessor">#endif</span>
    133. 

  133. <a name="l00111"></a><a class="code" href="PVRTGlobal_8h.html#a11">00111</a> <span class="preprocessor"></span>
    134. 

  134. 00112 <span class="preprocessor">#include &lt;stdio.h&gt;</span>
    135. 

  135. 00113 
    136. 

  136. 00114 <span class="preprocessor">#define FREE(X)     { if(X) { free(X); (X) = 0; } }</span>
    137. 

  137. 00115 <span class="preprocessor"></span>
    138. 

  138. 00116 <span class="comment">// This macro is used to check at compile time that types are of a certain size</span>
    139. 

  139. 00117 <span class="comment">// If the size does not equal the expected size, this typedefs an array of size 0</span>
    140. 

  140. <a name="l00118"></a><a class="code" href="PVRTGlobal_8h.html#a12">00118</a> <span class="comment">// which causes a compile error</span>
    141. 

  141. 00119 <span class="preprocessor">#define PVRTSIZEASSERT(T, size) typedef int (sizeof_##T)[sizeof(T) == (size)]</span>
    142. 

  142. 00120 <span class="preprocessor"></span>
    143. 

  143. 00121 
    144. 

  144. 00122 <span class="comment">/****************************************************************************</span>
    145. 

  145. <a name="l00123"></a><a class="code" href="PVRTGlobal_8h.html#a13">00123</a> <span class="comment">** Integer types</span>
    146. 

  146. 00124 <span class="comment">****************************************************************************/</span>
    147. 

  147. 00125 
    148. 

  148. 00126 <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">char</span>        <a class="code" href="PVRTGlobal_8h.html#a14">PVRTint8</a>;
    149. 

  149. 00127 <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">short</span>       <a class="code" href="PVRTGlobal_8h.html#a15">PVRTint16</a>;
    150. 

  150. 00128 <span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">int</span>         <a class="code" href="PVRTGlobal_8h.html#a16">PVRTint32</a>;
    151. 

  151. 00129 <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>      <a class="code" href="PVRTGlobal_8h.html#a17">PVRTuint8</a>;
    152. 

  152. <a name="l00130"></a><a class="code" href="PVRTGlobal_8h.html#a14">00130</a> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span>     <a class="code" href="PVRTGlobal_8h.html#a18">PVRTuint16</a>;
    153. 

  153. <a name="l00131"></a><a class="code" href="PVRTGlobal_8h.html#a15">00131</a> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>       <a class="code" href="PVRTGlobal_8h.html#a19">PVRTuint32</a>;
    154. 

  154. <a name="l00132"></a><a class="code" href="PVRTGlobal_8h.html#a16">00132</a> 
    155. 

  155. <a name="l00133"></a><a class="code" href="PVRTGlobal_8h.html#a17">00133</a> <span class="preprocessor">#if !defined(__BADA__) &amp;&amp; (defined(__int64) || defined(_WIN32))</span>
    156. 

  156. <a name="l00134"></a><a class="code" href="PVRTGlobal_8h.html#a18">00134</a> <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keywordtype">signed</span> __int64     <a class="code" href="PVRTGlobal_8h.html#a20">PVRTint64</a>;
    157. 

  157. <a name="l00135"></a><a class="code" href="PVRTGlobal_8h.html#a19">00135</a> <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> __int64   <a class="code" href="PVRTGlobal_8h.html#a21">PVRTuint64</a>;
    158. 

  158. 00136 <span class="preprocessor">#elif defined(TInt64)</span>
    159. 

  159. 00137 <span class="preprocessor"></span><span class="keyword">typedef</span> TInt64             <a class="code" href="PVRTGlobal_8h.html#a20">PVRTint64</a>;
    160. 

  160. 00138 <span class="keyword">typedef</span> TUInt64            <a class="code" href="PVRTGlobal_8h.html#a21">PVRTuint64</a>;
    161. 

  161. 00139 <span class="preprocessor">#else</span>
    162. 

  162. 00140 <span class="preprocessor"></span><span class="keyword">typedef</span> <span class="keywordtype">signed</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span>   <a class="code" href="PVRTGlobal_8h.html#a20">PVRTint64</a>;
    163. 

  163. 00141 <span class="keyword">typedef</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <span class="keywordtype">long</span> <a class="code" href="PVRTGlobal_8h.html#a21">PVRTuint64</a>;
    164. 

  164. 00142 <span class="preprocessor">#endif</span>
    165. 

  165. 00143 <span class="preprocessor"></span>
    166. 

  166. <a name="l00144"></a><a class="code" href="PVRTGlobal_8h.html#a20">00144</a> <a class="code" href="PVRTGlobal_8h.html#a13">PVRTSIZEASSERT</a>(PVRTint8,   1);
    167. 

  167. <a name="l00145"></a><a class="code" href="PVRTGlobal_8h.html#a21">00145</a> <a class="code" href="PVRTGlobal_8h.html#a13">PVRTSIZEASSERT</a>(PVRTuint8,  1);
    168. 

  168. 00146 <a class="code" href="PVRTGlobal_8h.html#a13">PVRTSIZEASSERT</a>(PVRTint16,  2);
    169. 

  169. 00147 <a class="code" href="PVRTGlobal_8h.html#a13">PVRTSIZEASSERT</a>(PVRTuint16, 2);
    170. 

  170. 00148 <a class="code" href="PVRTGlobal_8h.html#a13">PVRTSIZEASSERT</a>(PVRTint32,  4);
    171. 

  171. 00149 <a class="code" href="PVRTGlobal_8h.html#a13">PVRTSIZEASSERT</a>(PVRTuint32, 4);
    172. 

  172. 00150 <a class="code" href="PVRTGlobal_8h.html#a13">PVRTSIZEASSERT</a>(PVRTint64,  8);
    173. 

  173. 00151 <a class="code" href="PVRTGlobal_8h.html#a13">PVRTSIZEASSERT</a>(PVRTuint64, 8);
    174. 

  174. 00152 
    175. 

  175. 00153 <span class="comment">/****************************************************************************</span>
    176. 

  176. 00154 <span class="comment">** swap template function</span>
    177. 

  177. 00155 <span class="comment">****************************************************************************/</span>
    178. 

  178. 00156 <span class="comment">/*!***************************************************************************</span>
    179. 

  179. 00157 <span class="comment"> @Function      PVRTswap</span>
    180. 

  180. 00158 <span class="comment"> @Input         a Type a</span>
    181. 

  181. 00159 <span class="comment"> @Input         b Type b</span>
    182. 

  182. 00160 <span class="comment"> @Description   A swap template function that swaps a and b</span>
    183. 

  183. 00161 <span class="comment">*****************************************************************************/</span>
    184. 

  184. 00162 
    185. 

  185. 00163 <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;
    186. 

  186. 00164 <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="PVRTGlobal_8h.html#a30">PVRTswap</a>(T&amp; a, T&amp; b)
    187. 

  187. 00165 {
    188. 

  188. 00166     T temp = a;
    189. 

  189. 00167     a = b;
    190. 

  190. 00168     b = temp;
    191. 

  191. <a name="l00169"></a><a class="code" href="PVRTGlobal_8h.html#a30">00169</a> }
    192. 

  192. 00170 
    193. 

  193. 00171 <span class="preprocessor">#ifdef _UITRON_</span>
    194. 

  194. 00172 <span class="preprocessor"></span><span class="keyword">template</span> <span class="keywordtype">void</span> PVRTswap&lt;unsigned char&gt;(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>&amp; a, <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>&amp; b);
    195. 

  195. 00173 <span class="preprocessor">#endif</span>
    196. 

  196. 00174 <span class="preprocessor"></span>
    197. 

  197. 00175 <span class="comment">/*!***************************************************************************</span>
    198. 

  198. 00176 <span class="comment"> @Function      PVRTByteSwap</span>
    199. 

  199. 00177 <span class="comment"> @Input         pBytes A number</span>
    200. 

  200. 00178 <span class="comment"> @Input         i32ByteNo Number of bytes in pBytes</span>
    201. 

  201. 00179 <span class="comment"> @Description   Swaps the endianness of pBytes in place</span>
    202. 

  202. 00180 <span class="comment">*****************************************************************************/</span>
    203. 

  203. 00181 <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="PVRTGlobal_8h.html#a31">PVRTByteSwap</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* pBytes, <span class="keywordtype">int</span> i32ByteNo)
    204. 

  204. 00182 {
    205. 

  205. 00183     <span class="keywordtype">int</span> i = 0, j = i32ByteNo - 1;
    206. 

  206. 00184 
    207. 

  207. 00185     <span class="keywordflow">while</span>(i &lt; j)
    208. 

  208. 00186         PVRTswap&lt;unsigned char&gt;(pBytes[i++], pBytes[j--]);
    209. 

  209. <a name="l00187"></a><a class="code" href="PVRTGlobal_8h.html#a31">00187</a> }
    210. 

  210. 00188 
    211. 

  211. 00189 <span class="comment">/*!***************************************************************************</span>
    212. 

  212. 00190 <span class="comment"> @Function      PVRTByteSwap32</span>
    213. 

  213. 00191 <span class="comment"> @Input         ui32Long A number</span>
    214. 

  214. 00192 <span class="comment"> @Returns       ui32Long with its endianness changed</span>
    215. 

  215. 00193 <span class="comment"> @Description   Converts the endianness of an unsigned long</span>
    216. 

  216. 00194 <span class="comment">*****************************************************************************/</span>
    217. 

  217. 00195 <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> <a class="code" href="PVRTGlobal_8h.html#a32">PVRTByteSwap32</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> ui32Long)
    218. 

  218. 00196 {
    219. 

  219. 00197     <span class="keywordflow">return</span> ((ui32Long&amp;0x000000FF)&lt;&lt;24) + ((ui32Long&amp;0x0000FF00)&lt;&lt;8) + ((ui32Long&amp;0x00FF0000)&gt;&gt;8) + ((ui32Long&amp;0xFF000000) &gt;&gt; 24);
    220. 

  220. 00198 }
    221. 

  221. 00199 
    222. 

  222. 00200 <span class="comment">/*!***************************************************************************</span>
    223. 

  223. 00201 <span class="comment"> @Function      PVRTByteSwap16</span>
    224. 

  224. <a name="l00202"></a><a class="code" href="PVRTGlobal_8h.html#a32">00202</a> <span class="comment"> @Input         ui16Short A number</span>
    225. 

  225. 00203 <span class="comment"> @Returns       ui16Short with its endianness changed</span>
    226. 

  226. 00204 <span class="comment"> @Description   Converts the endianness of a unsigned short</span>
    227. 

  227. 00205 <span class="comment">*****************************************************************************/</span>
    228. 

  228. 00206 <span class="keyword">inline</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> <a class="code" href="PVRTGlobal_8h.html#a33">PVRTByteSwap16</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> ui16Short)
    229. 

  229. 00207 {
    230. 

  230. 00208     <span class="keywordflow">return</span> (ui16Short&gt;&gt;8) | (ui16Short&lt;&lt;8);
    231. 

  231. 00209 }
    232. 

  232. 00210 
    233. 

  233. 00211 <span class="comment">/*!***************************************************************************</span>
    234. 

  234. 00212 <span class="comment"> @Function      PVRTIsLittleEndian</span>
    235. 

  235. 00213 <span class="comment"> @Returns       True if the platform the code is ran on is little endian</span>
    236. 

  236. <a name="l00214"></a><a class="code" href="PVRTGlobal_8h.html#a33">00214</a> <span class="comment"> @Description   Returns true if the platform the code is ran on is little endian</span>
    237. 

  237. 00215 <span class="comment">*****************************************************************************/</span>
    238. 

  238. 00216 <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="PVRTGlobal_8h.html#a34">PVRTIsLittleEndian</a>()
    239. 

  239. 00217 {
    240. 

  240. 00218     <span class="keyword">static</span> <span class="keywordtype">bool</span> bLittleEndian;
    241. 

  241. 00219     <span class="keyword">static</span> <span class="keywordtype">bool</span> bIsInit = <span class="keyword">false</span>;
    242. 

  242. 00220 
    243. 

  243. 00221     <span class="keywordflow">if</span>(!bIsInit)
    244. 

  244. 00222     {
    245. 

  245. 00223         <span class="keywordtype">short</span> <span class="keywordtype">int</span> word = 0x0001;
    246. 

  246. 00224         <span class="keywordtype">char</span> *byte = (<span class="keywordtype">char</span>*) &amp;word;
    247. 

  247. <a name="l00225"></a><a class="code" href="PVRTGlobal_8h.html#a34">00225</a>         bLittleEndian = byte[0] ? <span class="keyword">true</span> : <span class="keyword">false</span>;
    248. 

  248. 00226         bIsInit = <span class="keyword">true</span>;
    249. 

  249. 00227     }
    250. 

  250. 00228 
    251. 

  251. 00229     <span class="keywordflow">return</span> bLittleEndian;
    252. 

  252. 00230 }
    253. 

  253. 00231 
    254. 

  254. 00232 <span class="preprocessor">#endif // _PVRTGLOBAL_H_</span>
    255. 

  255. 00233 <span class="preprocessor"></span>
    256. 

  256. 00234 <span class="comment">/*****************************************************************************</span>
    257. 

  257. 00235 <span class="comment"> End of file (Tools.h)</span>
    258. 

  258. 00236 <span class="comment">*****************************************************************************/</span>
    259. 

  259. 00237 
    260. 

  260. </pre></div><br>
    261. 

  261. <br>
    262. 

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    263. 

  263.    href="http://www.imgtec.com/powervr/insider/legal/index.asp">Copyright</A> © 
    264. 

  264.    1999-2008, Imagination Technologies Ltd.</STRONG></FONT></P>
    265. 

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