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<hr><h1>sound.cpp</h1><a href="sound_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#include "<a class="code" href="stdsound_8h.html">stdsound.h</a>"</font>
00027
00028 <font class="preprocessor">#include "<a class="code" href="sound_8h.html">sound.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="path_8h.html">nel/misc/path.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="sound__bank_8h.html">sound_bank.h</a>"</font>
00031
00032 <font class="preprocessor">#include "<a class="code" href="simple__sound_8h.html">simple_sound.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="complex__sound_8h.html">complex_sound.h</a>"</font>
00034 <font class="preprocessor">#include "<a class="code" href="context__sound_8h.html">context_sound.h</a>"</font>
00035
00036 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00037 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00038
00039
00040 <font class="keyword">namespace </font>NLSOUND {
00041
<a name="l00042"></a><a class="code" href="classNLSOUND_1_1CSound.html#d0">00042</a> CSound *CSound::createSound(<font class="keyword">const</font> std::string &filename, <a class="code" href="classNLGEORGES_1_1UFormElm.html">NLGEORGES::UFormElm</a>& formRoot)
00043 {
00044 <a class="code" href="classNLSOUND_1_1CSound.html#a0">CSound</a> *ret = NULL;
00045 string soundType;
00046
00047 <a class="code" href="classNLGEORGES_1_1UFormElm.html">NLGEORGES::UFormElm</a> *psoundType;
00048
00049 <font class="keywordflow">if</font> (!formRoot.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a0">getNodeByName</a>(&psoundType, <font class="stringliteral">".SoundType"</font>))
00050 {
00051 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"No SoundType in : %s"</font>, filename.c_str());
00052 <font class="keywordflow">return</font> 0;
00053 }
00054
00055 <font class="keywordflow">if</font> (psoundType != NULL)
00056 {
00057 std::string dfnName;
00058 psoundType-><a class="code" href="classNLGEORGES_1_1UFormElm.html#a42">getDfnName</a>(dfnName);
00059
00060 <font class="keywordflow">if</font> (dfnName == <font class="stringliteral">"simple_sound.dfn"</font>)
00061 {
00062 ret = <font class="keyword">new</font> CSimpleSound();
00063 ret->importForm(filename, formRoot);
00064 }
00065 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (dfnName == <font class="stringliteral">"complex_sound.dfn"</font>)
00066 {
00067 ret = <font class="keyword">new</font> CComplexSound();
00068 ret->importForm(filename, formRoot);
00069 }
00070 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (dfnName == <font class="stringliteral">"background_sound.dfn"</font>)
00071 {
00072 ret = <font class="keyword">new</font> CBackgroundSound();
00073 ret->importForm(filename, formRoot);
00074 }
00075 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (dfnName == <font class="stringliteral">"context_sound.dfn"</font>)
00076 {
00077 ret = <font class="keyword">new</font> CContextSound();
00078 ret->importForm(filename, formRoot);
00079 }
00080 <font class="keywordflow">else</font>
00081 {
00082 <a class="code" href="debug_8h.html#a8">nlassertex</a>(<font class="keyword">false</font>, (<font class="stringliteral">"SoundType unsuported : %s"</font>, dfnName.c_str()));
00083 }
00084
00085 }
00086
00087 <font class="keywordflow">return</font> ret;
00088 }
00089
00090
00091
00092 <font class="comment">/*</font>
00093 <font class="comment"> * Constructor</font>
00094 <font class="comment"> */</font>
<a name="l00095"></a><a class="code" href="classNLSOUND_1_1CSound.html#a0">00095</a> CSound::CSound() :
00096 _Gain(1.0f),
00097 _Pitch(1.0f),
00098 _MaxDist(1000000.0f),
00099 _Priority(<a class="code" href="namespaceNLSOUND.html#a82a12">MidPri</a>),
00100 _Looping(false),
00101 _ConeInnerAngle(6.283185f),
00102 _ConeOuterAngle(6.283185f),
00103 _ConeOuterGain( 1.0f )
00104 {
00105 }
00106
<a name="l00107"></a><a class="code" href="classNLSOUND_1_1CSound.html#a1">00107</a> CSound::~CSound()
00108 {}
00109
00110
<a name="l00111"></a><a class="code" href="classNLSOUND_1_1CSound.html#a18">00111</a> <font class="keywordtype">void</font> CSound::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>)
00112 {
00113 s.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNLSOUND_1_1CSound.html#n0">_Gain</a>);
00114 s.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNLSOUND_1_1CSound.html#n1">_Pitch</a>);
00115 s.<a class="code" href="classNLMISC_1_1IStream.html#a6">serialEnum</a>(<a class="code" href="classNLSOUND_1_1CSound.html#n2">_Priority</a>);
00116 s.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNLSOUND_1_1CSound.html#n3">_ConeInnerAngle</a>, <a class="code" href="classNLSOUND_1_1CSound.html#n4">_ConeOuterAngle</a>, <a class="code" href="classNLSOUND_1_1CSound.html#n5">_ConeOuterGain</a>);
00117 s.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNLSOUND_1_1CSound.html#n6">_Direction</a>);
00118 s.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNLSOUND_1_1CSound.html#n7">_Looping</a>);
00119 s.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNLSOUND_1_1CSound.html#n8">_MaxDist</a>);
00120 s.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNLSOUND_1_1CSound.html#n9">_Name</a>);
00121 }
00122
00123
<a name="l00127"></a><a class="code" href="classNLSOUND_1_1CSound.html#a3">00127</a> <font class="keywordtype">void</font> CSound::importForm(<font class="keyword">const</font> std::string& filename, <a class="code" href="classNLGEORGES_1_1UFormElm.html">NLGEORGES::UFormElm</a>& root)
00128 {
00129 <font class="comment">// Name</font>
00130 <a class="code" href="classNLSOUND_1_1CSound.html#n9">_Name</a> = CFile::getFilenameWithoutExtension(filename);
00131
00132 <font class="comment">// InternalConeAngle</font>
00133 uint32 inner;
00134 root.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a2">getValueByName</a>(inner, <font class="stringliteral">".InternalConeAngle"</font>);
00135 <font class="keywordflow">if</font> (inner > 360)
00136 {
00137 inner = 360;
00138 }
00139 <a class="code" href="classNLSOUND_1_1CSound.html#n3">_ConeInnerAngle</a> = (float) (<a class="code" href="namespaceNLMISC.html#a7">Pi</a> * inner / 180.0f); <font class="comment">// convert to radians</font>
00140
00141 <font class="comment">// ExternalConeAngle</font>
00142 uint32 outer;
00143 root.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a2">getValueByName</a>(outer, <font class="stringliteral">".ExternalConeAngle"</font>);
00144 <font class="keywordflow">if</font> (outer > 360)
00145 {
00146 outer = 360;
00147 }
00148 <a class="code" href="classNLSOUND_1_1CSound.html#n4">_ConeOuterAngle</a>= (float) (<a class="code" href="namespaceNLMISC.html#a7">Pi</a> * outer / 180.0f); <font class="comment">// convert to radians</font>
00149
00150 <font class="comment">// Loop</font>
00151 root.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a2">getValueByName</a>(<a class="code" href="classNLSOUND_1_1CSound.html#n7">_Looping</a>, <font class="stringliteral">".Loop"</font>);
00152
00153 <font class="comment">// Gain</font>
00154 sint32 gain;
00155 root.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a2">getValueByName</a>(gain, <font class="stringliteral">".Gain"</font>);
00156 <font class="keywordflow">if</font> (gain > 0)
00157 {
00158 gain = 0;
00159 }
00160 <font class="keywordflow">if</font> (gain < -100)
00161 {
00162 gain = -100;
00163 }
00164 <a class="code" href="classNLSOUND_1_1CSound.html#n0">_Gain</a> = (float) pow(10.0, gain / 20.0); <font class="comment">// convert dB to linear gain</font>
00165
00166 <font class="comment">// External gain</font>
00167 root.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a2">getValueByName</a>(gain, <font class="stringliteral">".ExternalGain"</font>);
00168 <font class="keywordflow">if</font> (gain > 0)
00169 {
00170 gain = 0;
00171 }
00172 <font class="keywordflow">if</font> (gain < -100)
00173 {
00174 gain = -100;
00175 }
00176 <a class="code" href="classNLSOUND_1_1CSound.html#n5">_ConeOuterGain</a> = (float) pow(10.0, gain / 20.0); <font class="comment">// convert dB to linear gain</font>
00177
00178 <font class="comment">// Direction</font>
00179 <font class="keywordtype">float</font> <a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a366">z</a>;
00180
00181 root.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a2">getValueByName</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, <font class="stringliteral">".Direction.X"</font>);
00182 root.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a2">getValueByName</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>, <font class="stringliteral">".Direction.Y"</font>);
00183 root.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a2">getValueByName</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a366">z</a>, <font class="stringliteral">".Direction.Z"</font>);
00184 <a class="code" href="classNLSOUND_1_1CSound.html#n6">_Direction</a> = CVector(<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a366">z</a>);
00185
00186
00187 <font class="comment">// Pitch</font>
00188 sint32 trans;
00189 root.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a2">getValueByName</a>(trans, <font class="stringliteral">".Transpose"</font>);
00190 <a class="code" href="classNLSOUND_1_1CSound.html#n1">_Pitch</a> = (float) pow(<a class="code" href="namespaceNLSOUND.html#a73">Sqrt12_2</a>, trans); <font class="comment">// convert semi-tones to playback speed</font>
00191
00192 <font class="comment">// Priority</font>
00193 uint32 prio = 0;
00194 root.<a class="code" href="classNLGEORGES_1_1UFormElm.html#a2">getValueByName</a>(prio, <font class="stringliteral">".Priority"</font>);
00195 <font class="keywordflow">switch</font> (prio)
00196 {
00197 <font class="keywordflow">case</font> 0: <a class="code" href="classNLSOUND_1_1CSound.html#n2">_Priority</a> = <a class="code" href="namespaceNLSOUND.html#a82a13">LowPri</a>; <font class="keywordflow">break</font>;
00198 <font class="keywordflow">default</font>:
00199 <font class="keywordflow">case</font> 1: <a class="code" href="classNLSOUND_1_1CSound.html#n2">_Priority</a> = <a class="code" href="namespaceNLSOUND.html#a82a12">MidPri</a>; <font class="keywordflow">break</font>;
00200 <font class="keywordflow">case</font> 2: <a class="code" href="classNLSOUND_1_1CSound.html#n2">_Priority</a> = <a class="code" href="namespaceNLSOUND.html#a82a11">HighPri</a>; <font class="keywordflow">break</font>;
00201 <font class="keywordflow">case</font> 3: <a class="code" href="classNLSOUND_1_1CSound.html#n2">_Priority</a> = <a class="code" href="namespaceNLSOUND.html#a82a10">HighestPri</a>; <font class="keywordflow">break</font>;
00202 }
00203 }
00204
00205
00206
00207 } <font class="comment">// NLSOUND</font>
</pre></div>
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