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228 lines
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<div id="projectname">Arduino MIDI Library
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 <span id="projectnumber">Version 4.3.1</span>
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<a href="#func-members">Functions</a> </div>
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<div class="title">MIDI.cpp File Reference</div> </div>
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<p>MIDI Library for the Arduino.
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<a href="#details">More...</a></p>
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<div class="textblock"><code>#include "<a class="el" href="a00002_source.html">MIDI.h</a>"</code><br />
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<p><a href="a00035_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:afe7c42d0b3ebed55378f19fc25c2c00b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="a00014.html#adf6b690441eb0a31c4abd3bc4fb99673">BEGIN_MIDI_NAMESPACE</a> unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="a00035.html#afe7c42d0b3ebed55378f19fc25c2c00b">encodeSysEx</a> (const <a class="el" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> *inData, <a class="el" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> *outSysEx, unsigned inLength)</td></tr>
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<tr class="memdesc:afe7c42d0b3ebed55378f19fc25c2c00b"><td class="mdescLeft"> </td><td class="mdescRight">Encode System Exclusive messages. SysEx messages are encoded to guarantee transmission of data bytes higher than 127 without breaking the MIDI protocol. Use this static method to convert the data you want to send. <a href="#afe7c42d0b3ebed55378f19fc25c2c00b">More...</a><br /></td></tr>
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<tr class="separator:afe7c42d0b3ebed55378f19fc25c2c00b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ae5b3935e2eeca1f7be983da095dcf056"><td class="memItemLeft" align="right" valign="top">unsigned </td><td class="memItemRight" valign="bottom"><a class="el" href="a00035.html#ae5b3935e2eeca1f7be983da095dcf056">decodeSysEx</a> (const <a class="el" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> *inSysEx, <a class="el" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> *outData, unsigned inLength)</td></tr>
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<tr class="memdesc:ae5b3935e2eeca1f7be983da095dcf056"><td class="mdescLeft"> </td><td class="mdescRight">Decode System Exclusive messages. SysEx messages are encoded to guarantee transmission of data bytes higher than 127 without breaking the MIDI protocol. Use this static method to reassemble your received message. <a href="#ae5b3935e2eeca1f7be983da095dcf056">More...</a><br /></td></tr>
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<tr class="separator:ae5b3935e2eeca1f7be983da095dcf056"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<div class="textblock"><p>MIDI Library for the Arduino. </p>
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<p>Project Arduino MIDI Library </p><dl class="section author"><dt>Author</dt><dd>Francois Best </dd></dl>
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<dl class="section date"><dt>Date</dt><dd>24/02/11 MIT - Copyright (c) 2015 Francois Best</dd></dl>
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<p>Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:</p>
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<p>The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.</p>
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<p>THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. </p>
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<p>Definition in file <a class="el" href="a00035_source.html">MIDI.cpp</a>.</p>
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</div><h2 class="groupheader">Function Documentation</h2>
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<a id="ae5b3935e2eeca1f7be983da095dcf056"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ae5b3935e2eeca1f7be983da095dcf056">§ </a></span>decodeSysEx()</h2>
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<td class="memname">unsigned decodeSysEx </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> * </td>
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<td class="paramname"><em>inSysEx</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> * </td>
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<td class="paramname"><em>outData</em>, </td>
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<td class="paramtype">unsigned </td>
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<td class="paramname"><em>inLength</em> </td>
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<td>)</td>
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<p>Decode System Exclusive messages. SysEx messages are encoded to guarantee transmission of data bytes higher than 127 without breaking the MIDI protocol. Use this static method to reassemble your received message. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">inSysEx</td><td>The SysEx data received from MIDI in. </td></tr>
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<tr><td class="paramname">outData</td><td>The output buffer where to store the decrypted message. </td></tr>
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<tr><td class="paramname">inLength</td><td>The lenght of the input buffer. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>The lenght of the output buffer. </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00035.html#afe7c42d0b3ebed55378f19fc25c2c00b" title="Encode System Exclusive messages. SysEx messages are encoded to guarantee transmission of data bytes ...">encodeSysEx</a> </dd>
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<dd>
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getSysExArrayLength Code inspired from Ruin & Wesen's SysEx encoder/decoder - <a href="http://ruinwesen.com">http://ruinwesen.com</a> </dd></dl>
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<p>Definition at line <a class="el" href="a00035_source.html#l00082">82</a> of file <a class="el" href="a00035_source.html">MIDI.cpp</a>.</p>
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<div class="fragment"><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>  <span class="keywordtype">unsigned</span> count = 0;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <a class="code" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> msbStorage = 0;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> byteIndex = 0;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i < inLength; ++i)</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">if</span> ((i % 8) == 0)</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  {</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  msbStorage = inSysEx[i];</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  byteIndex = 6;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">const</span> <a class="code" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> body = inSysEx[i];</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">const</span> <a class="code" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> msb = ((msbStorage >> byteIndex--) & 1) << 7;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  outData[count++] = msb | body;</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  }</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  }</div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">return</span> count;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> }</div><div class="ttc" id="a00008_html_ab8ef12fab634c171394422d0ee8baf94"><div class="ttname"><a href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a></div><div class="ttdeci">uint8_t byte</div><div class="ttdef"><b>Definition:</b> <a href="a00008_source.html#l00036">midi_Defs.h:36</a></div></div>
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<h2 class="memtitle"><span class="permalink"><a href="#afe7c42d0b3ebed55378f19fc25c2c00b">§ </a></span>encodeSysEx()</h2>
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<td class="memname"><a class="el" href="a00014.html#adf6b690441eb0a31c4abd3bc4fb99673">BEGIN_MIDI_NAMESPACE</a> unsigned encodeSysEx </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> * </td>
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<td class="paramname"><em>inData</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> * </td>
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<td class="paramname"><em>outSysEx</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">unsigned </td>
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<td class="paramname"><em>inLength</em> </td>
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<td>)</td>
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<p>Encode System Exclusive messages. SysEx messages are encoded to guarantee transmission of data bytes higher than 127 without breaking the MIDI protocol. Use this static method to convert the data you want to send. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">inData</td><td>The data to encode. </td></tr>
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<tr><td class="paramname">outSysEx</td><td>The output buffer where to store the encoded message. </td></tr>
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<tr><td class="paramname">inLength</td><td>The lenght of the input buffer. </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The lenght of the encoded output buffer. </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00035.html#ae5b3935e2eeca1f7be983da095dcf056" title="Decode System Exclusive messages. SysEx messages are encoded to guarantee transmission of data bytes ...">decodeSysEx</a> Code inspired from Ruin & Wesen's SysEx encoder/decoder - <a href="http://ruinwesen.com">http://ruinwesen.com</a> </dd></dl>
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<p>Definition at line <a class="el" href="a00035_source.html#l00045">45</a> of file <a class="el" href="a00035_source.html">MIDI.cpp</a>.</p>
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<div class="fragment"><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> {</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">unsigned</span> outLength = 0; <span class="comment">// Num bytes in output array.</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> count = 0; <span class="comment">// Num 7bytes in a block.</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  outSysEx[0] = 0;</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> i = 0; i < inLength; ++i)</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  {</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">const</span> <a class="code" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> data = inData[i];</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">const</span> <a class="code" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> msb = data >> 7;</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">const</span> <a class="code" href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a> body = data & 0x7f;</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>  outSysEx[0] |= (msb << (6 - count));</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  outSysEx[1 + count] = body;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">if</span> (count++ == 6)</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  {</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  outSysEx += 8;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  outLength += 8;</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  outSysEx[0] = 0;</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  count = 0;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  }</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  }</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">return</span> outLength + count + (count != 0 ? 1 : 0);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> }</div><div class="ttc" id="a00008_html_ab8ef12fab634c171394422d0ee8baf94"><div class="ttname"><a href="a00008.html#ab8ef12fab634c171394422d0ee8baf94">byte</a></div><div class="ttdeci">uint8_t byte</div><div class="ttdef"><b>Definition:</b> <a href="a00008_source.html#l00036">midi_Defs.h:36</a></div></div>
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<li class="footer">Generated on Fri Nov 4 2016 10:54:54 for Arduino MIDI Library by
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.12 </li>
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