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<div class="title">SDL_test_crc32.h</div> </div>
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<a href="SDL__test__crc32_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> Simple DirectMedia Layer</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org></span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"></span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> This software is provided 'as-is', without any express or implied</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> warranty. In no event will the authors be held liable for any damages</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> arising from the use of this software.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"></span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> Permission is granted to anyone to use this software for any purpose,</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> including commercial applications, and to alter it and redistribute it</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> freely, subject to the following restrictions:</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"></span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> 1. The origin of this software must not be misrepresented; you must not</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> claim that you wrote the original software. If you use this software</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> in a product, an acknowledgment in the product documentation would be</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> appreciated but is not required.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> 2. Altered source versions must be plainly marked as such, and must not be</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> misrepresented as being the original software.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> 3. This notice may not be removed or altered from any source distribution.</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> Implements CRC32 calculations (default output is Perl String::CRC32 compatible).</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#ifndef _SDL_test_crc32_h</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#define _SDL_test_crc32_h</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include "<a class="code" href="begin__code_8h.html">begin_code.h</a>"</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment">/* Set up for C function definitions, even when using C++ */</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment">/* ------------ Definitions --------- */</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment">/* Definition shared by all CRC routines */</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="preprocessor">#ifndef CrcUint32</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor"> #define CrcUint32 unsigned int</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor">#ifndef CrcUint8</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor"> #define CrcUint8 unsigned char</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#ifdef ORIGINAL_METHOD</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor"> #define CRC32_POLY 0x04c11db7 </span><span class="comment">/* AUTODIN II, Ethernet, & FDDI */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor"> #define CRC32_POLY 0xEDB88320 </span><span class="comment">/* Perl String::CRC32 compatible */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="structSDLTest__Crc32Context.html"> 66</a></span>  <span class="keyword">typedef</span> <span class="keyword">struct </span>{</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  CrcUint32 crc32_table[256]; <span class="comment">/* CRC table */</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  } <a class="code" href="structSDLTest__Crc32Context.html">SDLTest_Crc32Context</a>;</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="comment">/* ---------- Function Prototypes ------------- */</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordtype">int</span> <a class="code" href="SDL__test__crc32_8h.html#a06655d4056d1992fa85a1849b4f3eeeb">SDLTest_Crc32Init</a>(<a class="code" href="structSDLTest__Crc32Context.html">SDLTest_Crc32Context</a> * crcContext);</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="keywordtype">int</span> <a class="code" href="SDL__test__crc32_8h.html#a7241226dac1eefa35840fdae55f93118">SDLTest_crc32Calc</a>(<a class="code" href="structSDLTest__Crc32Context.html">SDLTest_Crc32Context</a> * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32);</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment">/* Same routine broken down into three steps */</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="keywordtype">int</span> SDLTest_Crc32CalcStart(<a class="code" href="structSDLTest__Crc32Context.html">SDLTest_Crc32Context</a> * crcContext, CrcUint32 *crc32);</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="keywordtype">int</span> SDLTest_Crc32CalcEnd(<a class="code" href="structSDLTest__Crc32Context.html">SDLTest_Crc32Context</a> * crcContext, CrcUint32 *crc32);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keywordtype">int</span> SDLTest_Crc32CalcBuffer(<a class="code" href="structSDLTest__Crc32Context.html">SDLTest_Crc32Context</a> * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keywordtype">int</span> <a class="code" href="SDL__test__crc32_8h.html#a020b58aa3d188466b41b7c9e526c18ec">SDLTest_Crc32Done</a>(<a class="code" href="structSDLTest__Crc32Context.html">SDLTest_Crc32Context</a> * crcContext);</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> </div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="comment">/* Ends C function definitions when using C++ */</span></div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> }</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="preprocessor">#include "<a class="code" href="close__code_8h.html">close_code.h</a>"</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="preprocessor">#endif </span><span class="comment">/* _SDL_test_crc32_h */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="comment">/* vi: set ts=4 sw=4 expandtab: */</span></div>
<div class="ttc" id="SDL__test__crc32_8h_html_a020b58aa3d188466b41b7c9e526c18ec"><div class="ttname"><a href="SDL__test__crc32_8h.html#a020b58aa3d188466b41b7c9e526c18ec">SDLTest_Crc32Done</a></div><div class="ttdeci">int SDLTest_Crc32Done(SDLTest_Crc32Context *crcContext)</div></div>
<div class="ttc" id="structSDLTest__Crc32Context_html"><div class="ttname"><a href="structSDLTest__Crc32Context.html">SDLTest_Crc32Context</a></div><div class="ttdef"><b>Definition:</b> SDL_test_crc32.h:66</div></div>
<div class="ttc" id="begin__code_8h_html"><div class="ttname"><a href="begin__code_8h.html">begin_code.h</a></div></div>
<div class="ttc" id="close__code_8h_html"><div class="ttname"><a href="close__code_8h.html">close_code.h</a></div></div>
<div class="ttc" id="SDL__test__crc32_8h_html_a06655d4056d1992fa85a1849b4f3eeeb"><div class="ttname"><a href="SDL__test__crc32_8h.html#a06655d4056d1992fa85a1849b4f3eeeb">SDLTest_Crc32Init</a></div><div class="ttdeci">int SDLTest_Crc32Init(SDLTest_Crc32Context *crcContext)</div></div>
<div class="ttc" id="SDL__test__crc32_8h_html_a7241226dac1eefa35840fdae55f93118"><div class="ttname"><a href="SDL__test__crc32_8h.html#a7241226dac1eefa35840fdae55f93118">SDLTest_crc32Calc</a></div><div class="ttdeci">int SDLTest_crc32Calc(SDLTest_Crc32Context *crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32)</div></div>
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