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| author | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
|---|---|---|
| committer | neodarz <neodarz@neodarz.net> | 2018-08-11 20:21:34 +0200 |
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doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<hr><h1>listener_al.cpp</h1><a href="listener__al_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="stdopenal_8h.html">stdopenal.h</a>"</font> +00027 +00028 <font class="preprocessor">#include "<a class="code" href="listener__al_8h.html">listener_al.h</a>"</font> +00029 +00030 +00031 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC; +00032 +00033 +00034 <font class="keyword">namespace </font>NLSOUND { +00035 +00036 +00037 <font class="comment">// The instance of the singleton</font> +<a name="l00038"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#r0">00038</a> CListenerAL *CListenerAL::_Instance = NULL; +00039 +00040 +00041 <font class="comment">/*</font> +00042 <font class="comment"> * Constructor</font> +00043 <font class="comment"> */</font> +<a name="l00044"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#a0">00044</a> CListenerAL::CListenerAL() : IListener() +00045 { +00046 <font class="keywordflow">if</font> ( <a class="code" href="classNLSOUND_1_1CListenerAL.html#r0">_Instance</a> == NULL ) +00047 { +00048 <a class="code" href="classNLSOUND_1_1CListenerAL.html#r0">_Instance</a> = <font class="keyword">this</font>; +00049 } +00050 <font class="keywordflow">else</font> +00051 { +00052 <a class="code" href="debug_8h.html#a3">nlerror</a>( <font class="stringliteral">"Listener singleton instanciated twice"</font> ); +00053 } +00054 } +00055 +00056 +00057 <font class="comment">/*</font> +00058 <font class="comment"> * Set the position vector (default: (0,0,0)) (3D mode only)</font> +00059 <font class="comment"> */</font> +<a name="l00060"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z973_0">00060</a> <font class="keywordtype">void</font> CListenerAL::setPos( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>& pos ) +00061 { +00062 <a class="code" href="classNLSOUND_1_1CListenerAL.html#o0">_Pos</a> = pos; +00063 <font class="comment">// Coordinate system: conversion from NeL to OpenAL/GL:</font> +00064 alListener3f( AL_POSITION, pos.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, pos.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>, -pos.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> ); +00065 <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00066 } +00067 +00068 +<a name="l00072"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z973_1">00072</a> <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &CListenerAL::getPos()<font class="keyword"> const</font> +00073 <font class="keyword"></font>{ +00074 <font class="keywordflow">return</font> <a class="code" href="classNLSOUND_1_1CListenerAL.html#o0">_Pos</a>; +00075 +00076 <font class="comment">// Currently, the OpenAL headers are different between Windows and Linux versions !</font> +00077 <font class="comment">// alGetListener3f() is part of the spec, though.</font> +00078 <font class="comment">/*</font> +00079 <font class="comment">#ifdef NL_OS_WINDOWS</font> +00080 <font class="comment"> // Coordsys conversion</font> +00081 <font class="comment"> float glposz;</font> +00082 <font class="comment"> alGetListener3f( AL_POSITION, &pos.x, &pos.z, &glposz );</font> +00083 <font class="comment"> pos.y = -glposz;</font> +00084 <font class="comment">#else</font> +00085 <font class="comment"> float posarray [3];</font> +00086 <font class="comment"> alGetListenerfv( AL_POSITION, posarray );</font> +00087 <font class="comment"> // Coordsys conversion</font> +00088 <font class="comment"> pos.set( posarray[0], -posarray[2], posarray[1] );</font> +00089 <font class="comment">#endif</font> +00090 <font class="comment"> TestALError();</font> +00091 <font class="comment">*/</font> +00092 } +00093 +00094 +00095 <font class="comment">/*</font> +00096 <font class="comment"> * Set the velocity vector (3D mode only)</font> +00097 <font class="comment"> */</font> +<a name="l00098"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z973_2">00098</a> <font class="keywordtype">void</font> CListenerAL::setVelocity( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>& vel ) +00099 { +00100 <font class="comment">// Coordsys conversion</font> +00101 alListener3f( AL_VELOCITY, vel.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, vel.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>, -vel.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> ); +00102 <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00103 } +00104 +00105 +00106 <font class="comment">/*</font> +00107 <font class="comment"> * Get the velocity vector</font> +00108 <font class="comment"> */</font> +<a name="l00109"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z973_3">00109</a> <font class="keywordtype">void</font> CListenerAL::getVelocity( <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>& vel )<font class="keyword"> const</font> +00110 <font class="keyword"></font>{ +00111 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00112 <font class="preprocessor"></font> <font class="comment">// Coordsys conversion</font> +00113 <font class="keywordtype">float</font> glposz; +00114 alGetListener3f( AL_VELOCITY, &vel.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, &vel.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>, &glposz ); +00115 vel.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a> = - glposz; +00116 <font class="preprocessor">#else</font> +00117 <font class="preprocessor"></font> <font class="keywordtype">float</font> velarray [3]; +00118 alGetListenerfv( AL_VELOCITY, velarray ); +00119 <font class="comment">// Coordsys conversion</font> +00120 vel.<a class="code" href="classNLMISC_1_1CVector.html#z332_0">set</a>( velarray[0], -velarray[2], velarray[1] ); +00121 <font class="preprocessor">#endif</font> +00122 <font class="preprocessor"></font> <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00123 } +00124 +00125 +00126 <font class="comment">/*</font> +00127 <font class="comment"> * Set the orientation vectors (3D mode only)</font> +00128 <font class="comment"> */</font> +<a name="l00129"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z973_4">00129</a> <font class="keywordtype">void</font> CListenerAL::setOrientation( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>& front, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>& up ) +00130 { +00131 <font class="comment">// Forward then up</font> +00132 ALfloat <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[6]; +00133 <font class="comment">// Coordsys conversion</font> +00134 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[0] = front.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>; +00135 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[1] = front.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>; +00136 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[2] = -front.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>; +00137 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[3] = up.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>; +00138 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[4] = up.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>; +00139 <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[5] = -up.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>; +00140 alListenerfv( AL_ORIENTATION, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> ); +00141 <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00142 } +00143 +00144 +00145 <font class="comment">/*</font> +00146 <font class="comment"> * Get the orientation vectors</font> +00147 <font class="comment"> */</font> +<a name="l00148"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z973_5">00148</a> <font class="keywordtype">void</font> CListenerAL::getOrientation( <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>& front, <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>& up )<font class="keyword"> const</font> +00149 <font class="keyword"></font>{ +00150 <font class="comment">// Forward then up</font> +00151 ALfloat <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[6]; +00152 alGetListenerfv( AL_ORIENTATION, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a> ); +00153 <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00154 <font class="comment">// Coordsys conversion</font> +00155 front.<a class="code" href="classNLMISC_1_1CVector.html#z332_0">set</a>( <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[0], -<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[2], <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[1] ); +00156 up.<a class="code" href="classNLMISC_1_1CVector.html#z332_0">set</a>( <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[3], -<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[5], <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>[4] ); +00157 } +00158 +00159 +00160 <font class="comment">/* Set the gain (volume value inside [0 , 1]). (default: 1)</font> +00161 <font class="comment"> * 0.0 -> silence</font> +00162 <font class="comment"> * 0.5 -> -6dB</font> +00163 <font class="comment"> * 1.0 -> no attenuation</font> +00164 <font class="comment"> * values > 1 (amplification) not supported by most drivers</font> +00165 <font class="comment"> */</font> +<a name="l00166"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z973_6">00166</a> <font class="keywordtype">void</font> CListenerAL::setGain( <font class="keywordtype">float</font> gain ) +00167 { +00168 alListenerf( AL_GAIN, gain ); +00169 <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00170 } +00171 +00172 +00173 <font class="comment">/*</font> +00174 <font class="comment"> * Get the gain</font> +00175 <font class="comment"> */</font> +<a name="l00176"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z973_7">00176</a> <font class="keywordtype">float</font> CListenerAL::getGain()<font class="keyword"> const</font> +00177 <font class="keyword"></font>{ +00178 ALfloat gain; +00179 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00180 <font class="preprocessor"></font> alGetListenerf( AL_GAIN, &gain ); +00181 <font class="preprocessor">#else</font> +00182 <font class="preprocessor"></font> alGetListenerfv( AL_GAIN, &gain ); +00183 <font class="preprocessor">#endif</font> +00184 <font class="preprocessor"></font> <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00185 <font class="keywordflow">return</font> gain; +00186 } +00187 +00188 +00189 <font class="comment">/*</font> +00190 <font class="comment"> * Set the doppler factor (default: 1) to exaggerate or not the doppler effect</font> +00191 <font class="comment"> */</font> +<a name="l00192"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z974_0">00192</a> <font class="keywordtype">void</font> CListenerAL::setDopplerFactor( <font class="keywordtype">float</font> f ) +00193 { +00194 alDopplerFactor( f ); +00195 <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00196 } +00197 +00198 +00199 <font class="comment">/*</font> +00200 <font class="comment"> * Set the rolloff factor (default: 1) to scale the distance attenuation effect</font> +00201 <font class="comment"> */</font> +<a name="l00202"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z974_1">00202</a> <font class="keywordtype">void</font> CListenerAL::setRolloffFactor( <font class="keywordtype">float</font> f ) +00203 { +00204 <a class="code" href="debug_8h.html#a6">nlassert</a>( CSoundDriverAL::instance() != NULL ); +00205 CSoundDriverAL::instance()->applyRolloffFactor( f ); +00206 } +00207 +00208 +00209 <font class="comment">/*</font> +00210 <font class="comment"> * Set DSPROPERTY_EAXLISTENER_ENVIRONMENT and DSPROPERTY_EAXLISTENER_ENVIRONMENTSIZE if EAX available (see EAX listener properties)</font> +00211 <font class="comment"> */</font> +<a name="l00212"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z974_2">00212</a> <font class="keywordtype">void</font> CListenerAL::setEnvironment( uint env, <font class="keywordtype">float</font> size ) +00213 { +00214 <font class="preprocessor">#ifdef EAX_AVAILABLE</font> +00215 <font class="preprocessor"></font> <font class="keywordflow">if</font> ( EAXSetProp != NULL ) +00216 { +00217 EAXSetProp( &DSPROPSETID_EAX_ListenerProperties, DSPROPERTY_EAXLISTENER_ENVIRONMENT, 0, &env, <font class="keyword">sizeof</font>(<font class="keywordtype">unsigned</font> <font class="keywordtype">long</font>) ); +00218 EAXSetProp( &DSPROPSETID_EAX_ListenerProperties, DSPROPERTY_EAXLISTENER_ENVIRONMENTSIZE, 0, &size, <font class="keyword">sizeof</font>(<font class="keywordtype">float</font>) ); +00219 } +00220 <font class="preprocessor">#endif</font> +00221 <font class="preprocessor"></font>} +00222 +00223 +00224 <font class="comment">/*</font> +00225 <font class="comment"> * Set any EAX listener property if EAX available</font> +00226 <font class="comment"> */</font> +<a name="l00227"></a><a class="code" href="classNLSOUND_1_1CListenerAL.html#z974_3">00227</a> <font class="keywordtype">void</font> CListenerAL::setEAXProperty( uint prop, <font class="keywordtype">void</font> *<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, uint valuesize ) +00228 { +00229 <font class="preprocessor">#ifdef EAX_AVAILABLE</font> +00230 <font class="preprocessor"></font> <font class="keywordflow">if</font> ( EAXSetProp != NULL ) +00231 { +00232 EAXSetProp( &DSPROPSETID_EAX_ListenerProperties, prop, 0, <a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, valuesize ); +00233 } +00234 <font class="preprocessor">#endif</font> +00235 <font class="preprocessor"></font>} +00236 +00237 +00238 } <font class="comment">// NLSOUND</font> +</pre></div> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |