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authorneodarz <neodarz@neodarz.net>2018-08-11 20:21:34 +0200
committerneodarz <neodarz@neodarz.net>2018-08-11 20:21:34 +0200
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+<hr><h1>background_source.cpp</h1><a href="background__source_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="background__source_8h.html">background_source.h</a>"</font>
+00029
+00030 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
+00031 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
+00032
+00033 <font class="keyword">namespace </font>NLSOUND
+00034 {
+00035
+00037 <font class="keyword">const</font> <a class="code" href="namespaceNLMISC.html#a183">TTime</a> <a class="code" href="namespaceNLSOUND.html#a19">ENV_CHK_INTERVAL</a> = 3000;
+00038
+00039
+<a name="l00040"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a0">00040</a> CBackgroundSource::CBackgroundSource(CBackgroundSound *backgroundSource, <font class="keywordtype">bool</font> spawn, <a class="code" href="namespaceNLSOUND.html#a9">TSpawnEndCallback</a> cb, <font class="keywordtype">void</font> *cbUserParam)
+00041 : CSourceCommon(backgroundSource, spawn, cb, cbUserParam)
+00042 {
+00043 <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o0">_BackgroundSound</a> = backgroundSource;
+00044 }
+00045
+<a name="l00046"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a1">00046</a> CBackgroundSource::~CBackgroundSource()
+00047 {
+00048 <font class="keywordflow">if</font> (_Playing)
+00049 <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a5">stop</a>();
+00050 }
+00051
+<a name="l00052"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a2">00052</a> <font class="keywordtype">void</font> CBackgroundSource::setSound( <a class="code" href="namespaceNLSOUND.html#a8">TSoundId</a> <a class="code" href="driver__opengl__extension__def_8h.html#a356">id</a>, CSoundContext *context)
+00053 {
+00054 <a class="code" href="debug_8h.html#a6">nlassert</a>(<font class="keyword">false</font>);
+00055 }
+00056
+<a name="l00057"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a3">00057</a> <a class="code" href="namespaceNLSOUND.html#a8">TSoundId</a> CBackgroundSource::getSound()
+00058 {
+00059 <font class="keywordflow">return</font> NULL;
+00060 }
+00061
+<a name="l00062"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a7">00062</a> <font class="keywordtype">void</font> CBackgroundSource::setGain( <font class="keywordtype">float</font> gain )
+00063 {
+00064 CSourceCommon::setGain(gain);
+00065
+00066 std::vector&lt;TSubSource&gt;::iterator first(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.begin()), last(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.end());
+00067 <font class="keywordflow">for</font> (; first != last; ++first)
+00068 {
+00069 <font class="keywordflow">if</font> (first-&gt;Source != 0)
+00070 first-&gt;Source-&gt;setRelativeGain(<a class="code" href="classNLSOUND_1_1CSourceCommon.html#n6">_Gain</a>);
+00071 }
+00072 }
+<a name="l00073"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a8">00073</a> <font class="keywordtype">void</font> CBackgroundSource::setRelativeGain( <font class="keywordtype">float</font> gain )
+00074 {
+00075 CSourceCommon::setRelativeGain(gain);
+00076
+00077 std::vector&lt;TSubSource&gt;::iterator first(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.begin()), last(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.end());
+00078 <font class="keywordflow">for</font> (; first != last; ++first)
+00079 {
+00080 <font class="keywordflow">if</font> (first-&gt;Source != 0)
+00081 first-&gt;Source-&gt;setRelativeGain(<a class="code" href="classNLSOUND_1_1CSourceCommon.html#n6">_Gain</a>);
+00082 }
+00083 }
+00084
+<a name="l00085"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a9">00085</a> <font class="keywordtype">void</font> CBackgroundSource::setPos( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; pos )
+00086 {
+00087 CSourceCommon::setPos(pos);
+00088
+00089 std::vector&lt;TSubSource&gt;::iterator first(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.begin()), last(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.end());
+00090 <font class="keywordflow">for</font> (; first != last; ++first)
+00091 {
+00092 <font class="keywordflow">if</font> (first-&gt;Source != 0)
+00093 first-&gt;Source-&gt;setPos(pos);
+00094 }
+00095 }
+00096
+<a name="l00097"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a10">00097</a> <font class="keywordtype">void</font> CBackgroundSource::setVelocity( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; vel )
+00098 {
+00099 CSourceCommon::setVelocity(vel);
+00100
+00101 std::vector&lt;TSubSource&gt;::iterator first(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.begin()), last(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.end());
+00102 <font class="keywordflow">for</font> (; first != last; ++first)
+00103 {
+00104 <font class="keywordflow">if</font> (first-&gt;Source != 0)
+00105 first-&gt;Source-&gt;setVelocity(vel);
+00106 }
+00107 }
+<a name="l00108"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a11">00108</a> <font class="keywordtype">void</font> CBackgroundSource::setDirection( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; dir )
+00109 {
+00110 CSourceCommon::setDirection(dir);
+00111
+00112 std::vector&lt;TSubSource&gt;::iterator first(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.begin()), last(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.end());
+00113 <font class="keywordflow">for</font> (; first != last; ++first)
+00114 {
+00115 <font class="keywordflow">if</font> (first-&gt;Source != 0)
+00116 first-&gt;Source-&gt;setDirection(dir);
+00117 }
+00118 }
+00119
+00120
+00121
+<a name="l00122"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a4">00122</a> <font class="keywordtype">void</font> CBackgroundSource::play()
+00123 {
+00124 <font class="keywordflow">if</font> (_Playing)
+00125 <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a5">stop</a>();
+00126
+00127 CAudioMixerUser *mixer = CAudioMixerUser::instance();
+00128
+00129 <font class="keyword">const</font> vector&lt;CBackgroundSound::TSoundInfo&gt; &amp;sounds = <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o0">_BackgroundSound</a>-&gt;getSounds();
+00130 vector&lt;CBackgroundSound::TSoundInfo&gt;::const_iterator first(sounds.begin()), last(sounds.end());
+00131
+00132 <font class="keywordflow">for</font> (; first != last; ++first)
+00133 {
+00134 TSubSource subSource;
+00135 subSource.Source = mixer-&gt;createSource(first-&gt;SoundName, <font class="keyword">false</font>);
+00136 subSource.Filter = first-&gt;Filter;
+00137 subSource.FadeStart = 0;
+00138 subSource.FilterFadeIn = first-&gt;FilterFadeIn;
+00139 subSource.FilterFadeOut = first-&gt;FilterFadeOut;
+00140
+00141 <font class="keywordflow">if</font> (subSource.Source &amp;&amp; <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#c0">checkFilter</a>(subSource.Filter))
+00142 {
+00143 subSource.Status = <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u0">SUB_STATUS_PLAY</a>;
+00144 subSource.Source-&gt;setRelativeGain(<a class="code" href="classNLSOUND_1_1CSourceCommon.html#n6">_Gain</a>);
+00145 subSource.Source-&gt;setPos(<a class="code" href="classNLSOUND_1_1CSourceCommon.html#n3">_Position</a>);
+00146 subSource.Source-&gt;play();
+00147 }
+00148 <font class="keywordflow">else</font>
+00149 {
+00150 subSource.Status = <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u1">SUB_STATUS_STOP</a>;
+00151 }
+00152
+00153 <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.push_back(subSource);
+00154 }
+00155
+00156 <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o2">_LastCheck</a> = <a class="code" href="classNLMISC_1_1CTime.html#d1">NLMISC::CTime::getLocalTime</a>();
+00157
+00158 <font class="comment">// Set an event for next env checking.</font>
+00159 mixer-&gt;addEvent(<font class="keyword">this</font>, <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o2">_LastCheck</a>+<a class="code" href="namespaceNLSOUND.html#a19">ENV_CHK_INTERVAL</a>);
+00160
+00161 CSourceCommon::play();
+00162 }
+00163
+<a name="l00164"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#a5">00164</a> <font class="keywordtype">void</font> CBackgroundSource::stop()
+00165 {
+00166 <font class="keywordflow">if</font> (_Playing)
+00167 {
+00168 CAudioMixerUser *mixer = CAudioMixerUser::instance();
+00169 mixer-&gt;unregisterUpdate(<font class="keyword">this</font>);
+00170 mixer-&gt;removeEvents(<font class="keyword">this</font>);
+00171
+00172 <font class="keywordflow">while</font> (!<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.empty())
+00173 {
+00174 TSubSource &amp;subSource = <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.back();
+00175 <font class="keywordflow">if</font> (subSource.Source != NULL)
+00176 {
+00177 <font class="comment">// subSource.Source-&gt;stop();</font>
+00178 <font class="comment">//mixer-&gt;removeSource(subSource.Source);</font>
+00179 <font class="keyword">delete</font> subSource.Source;
+00180
+00181 }
+00182 <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.pop_back();
+00183 }
+00184 }
+00185
+00186 CSourceCommon::stop();
+00187 }
+00188
+<a name="l00189"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#c1">00189</a> <font class="keywordtype">void</font> CBackgroundSource::onUpdate()
+00190 {
+00191 <font class="comment">// this is called for fade in/out.</font>
+00192 CAudioMixerUser *mixer = CAudioMixerUser::instance();
+00193 <font class="keywordtype">bool</font> doFade = <font class="keyword">false</font>;
+00194 <a class="code" href="namespaceNLMISC.html#a183">TTime</a> now = <a class="code" href="classNLMISC_1_1CTime.html#d1">NLMISC::CTime::getLocalTime</a>();
+00195 <font class="keywordtype">float</font> gain;
+00196
+00197 vector&lt;TSubSource&gt;::iterator first(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.begin()), last(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.end());
+00198 <font class="keywordflow">for</font> (; first != last; ++first)
+00199 {
+00200 <font class="keywordflow">if</font> (first-&gt;Source != NULL)
+00201 {
+00202 <font class="keywordflow">if</font> (first-&gt;Status == <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u3">SUB_STATUS_FADEIN</a>)
+00203 {
+00204 <font class="keywordflow">if</font> (first-&gt;FilterFadeIn &gt; 0)
+00205 gain = (now - first-&gt;FadeStart) / float(first-&gt;FilterFadeIn);
+00206 <font class="keywordflow">else</font>
+00207 gain = 1.0f;
+00208
+00209 <font class="keywordflow">if</font> (gain &lt; 1.0f)
+00210 {
+00211 first-&gt;Source-&gt;setRelativeGain(gain);
+00212 doFade = <font class="keyword">true</font>;
+00213 }
+00214 <font class="keywordflow">else</font>
+00215 {
+00216 <font class="comment">// fade end</font>
+00217 first-&gt;Source-&gt;setRelativeGain(1.0f * <a class="code" href="classNLSOUND_1_1CSourceCommon.html#n6">_Gain</a>);
+00218 first-&gt;Status = <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u0">SUB_STATUS_PLAY</a>;
+00219 }
+00220 }
+00221 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (first-&gt;Status == <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u2">SUB_STATUS_FADEOUT</a>)
+00222 {
+00223 <font class="keywordflow">if</font> (first-&gt;FilterFadeOut &gt; 0)
+00224 gain = 1.0f - (now - first-&gt;FadeStart) / float(first-&gt;FilterFadeOut);
+00225 <font class="keywordflow">else</font>
+00226 gain = 0.0f;
+00227 <font class="keywordflow">if</font> (gain &gt; 0.0f)
+00228 {
+00229 first-&gt;Source-&gt;setRelativeGain(gain * <a class="code" href="classNLSOUND_1_1CSourceCommon.html#n6">_Gain</a>);
+00230 doFade = <font class="keyword">true</font>;
+00231 }
+00232 <font class="keywordflow">else</font>
+00233 {
+00234 first-&gt;Source-&gt;stop();
+00235 first-&gt;Status = <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u1">SUB_STATUS_STOP</a>;
+00236 }
+00237 }
+00238 }
+00239 }
+00240
+00241 <font class="comment">// any fade to update ?</font>
+00242 <font class="keywordflow">if</font> (!doFade)
+00243 mixer-&gt;unregisterUpdate(<font class="keyword">this</font>);
+00244 }
+00245
+<a name="l00246"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#c2">00246</a> <font class="keywordtype">void</font> CBackgroundSource::onEvent()
+00247 {
+00248 <font class="comment">// check all sounds and test for start or stop.</font>
+00249 CAudioMixerUser *mixer = CAudioMixerUser::instance();
+00250
+00251 <font class="keywordtype">bool</font> doFade = <font class="keyword">false</font>;
+00252 <a class="code" href="namespaceNLMISC.html#a183">TTime</a> now = <a class="code" href="classNLMISC_1_1CTime.html#d1">NLMISC::CTime::getLocalTime</a>();
+00253
+00254 vector&lt;TSubSource&gt;::iterator first(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.begin()), last(<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o1">_Sources</a>.end());
+00255 <font class="keywordflow">for</font> (; first != last; ++first)
+00256 {
+00257 <font class="keywordflow">if</font> (first-&gt;Source != NULL)
+00258 {
+00259 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CBackgroundSource.html#c0">checkFilter</a>(first-&gt;Filter))
+00260 {
+00261 <font class="comment">// source ok</font>
+00262 <font class="keywordflow">if</font> (first-&gt;Status == <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u1">SUB_STATUS_STOP</a>)
+00263 {
+00264 first-&gt;Status = <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u3">SUB_STATUS_FADEIN</a>;
+00265 first-&gt;Source-&gt;setRelativeGain(0.0f);
+00266 first-&gt;Source-&gt;setPos(<a class="code" href="classNLSOUND_1_1CSourceCommon.html#n3">_Position</a>);
+00267 first-&gt;Source-&gt;play();
+00268 first-&gt;FadeStart = now;
+00269 doFade = <font class="keyword">true</font>;
+00270 }
+00271 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (first-&gt;Status == <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u2">SUB_STATUS_FADEOUT</a>)
+00272 {
+00273 first-&gt;Status = <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u3">SUB_STATUS_FADEIN</a>;
+00274 <font class="comment">// Replace fade start date to smoosly reverse the fade.</font>
+00275 first-&gt;FadeStart = now - (first-&gt;FadeStart - first-&gt;FilterFadeOut);
+00276 doFade = <font class="keyword">true</font>;
+00277 }
+00278 }
+00279 <font class="keywordflow">else</font>
+00280 {
+00281 <font class="comment">// source masked.</font>
+00282 <font class="keywordflow">if</font> (first-&gt;Status == <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u0">SUB_STATUS_PLAY</a>)
+00283 {
+00284 first-&gt;Status = <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u2">SUB_STATUS_FADEOUT</a>;
+00285 first-&gt;FadeStart = now;
+00286 doFade = <font class="keyword">true</font>;
+00287 }
+00288 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (first-&gt;Status == <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u3">SUB_STATUS_FADEIN</a>)
+00289 {
+00290 first-&gt;Status = <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#u4u2">SUB_STATUS_FADEOUT</a>;
+00291 <font class="comment">// Replace fade start date to smoosly reverse the fade.</font>
+00292 first-&gt;FadeStart = now - (first-&gt;FadeStart - first-&gt;FilterFadeIn);
+00293 doFade = <font class="keyword">true</font>;
+00294 }
+00295 }
+00296 }
+00297 }
+00298
+00299 <font class="keywordflow">if</font> (doFade)
+00300 {
+00301 <font class="comment">// register for fade in/out</font>
+00302 mixer-&gt;registerUpdate(<font class="keyword">this</font>);
+00303 }
+00304
+00305 <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o2">_LastCheck</a> = <a class="code" href="classNLMISC_1_1CTime.html#d1">NLMISC::CTime::getLocalTime</a>();
+00306
+00307 <font class="comment">// set the next event.</font>
+00308 mixer-&gt;addEvent(<font class="keyword">this</font>, <a class="code" href="classNLSOUND_1_1CBackgroundSource.html#o2">_LastCheck</a> + <a class="code" href="namespaceNLSOUND.html#a19">ENV_CHK_INTERVAL</a>);
+00309 }
+00310
+00311
+<a name="l00312"></a><a class="code" href="classNLSOUND_1_1CBackgroundSource.html#c0">00312</a> <font class="keywordtype">bool</font> CBackgroundSource::checkFilter(<font class="keyword">const</font> UAudioMixer::TBackgroundFlags &amp;filter)
+00313 {
+00314 <font class="comment">// Get the current environnement from the bakgound sound manager.</font>
+00315 <font class="keyword">const</font> UAudioMixer::TBackgroundFlags &amp;bg = CAudioMixerUser::instance()-&gt;getBackgroundSoundManager()-&gt;getBackgroundFlags();
+00316
+00317 <font class="keywordtype">bool</font> ok = <font class="keyword">true</font>;
+00318
+00319 <font class="keywordflow">for</font> (uint i=0; i&lt;16; ++i)
+00320 ok &amp;= filter.Flags[i] || !bg.Flags[i];
+00321
+00322 <font class="keywordflow">return</font> ok;
+00323 }
+00324
+00325
+00326 } <font class="comment">// NLSOUND</font>
+</pre></div>
+
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