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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>sound_driver_al.cpp</h1><a href="sound__driver__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="buffer__al_8h.html">buffer_al.h</a>"</font> +00029 <font class="preprocessor">#include "<a class="code" href="listener__al_8h.html">listener_al.h</a>"</font> +00030 +00031 <font class="keyword">using</font> <font class="keyword">namespace </font>std; +00032 +00033 +00034 <font class="keyword">namespace </font>NLSOUND { +00035 +00036 +00037 <font class="preprocessor">#ifdef EAX_AVAILABLE</font> +00038 <font class="preprocessor"></font><font class="comment">// EAXSet global function</font> +00039 EAXSet EAXSetProp = NULL; +00040 +00041 <font class="comment">// EAXGet global function</font> +00042 EAXGet EAXGetProp = NULL; +00043 <font class="preprocessor">#endif</font> +00044 <font class="preprocessor"></font> +00045 +00046 <font class="comment">// Currently, the OpenAL headers are different between Windows and Linux versions !</font> +00047 <font class="comment">// AL_INVALID_XXXX are part of the spec, though.</font> +00048 <font class="preprocessor">#ifdef NL_OS_UNIX</font> +00049 <font class="preprocessor"></font><font class="preprocessor">#define AL_INVALID_ENUM AL_ILLEGAL_ENUM </font> +00050 <font class="preprocessor"></font><font class="preprocessor">#define AL_INVALID_OPERATION AL_ILLEGAL_COMMAND </font> +00051 <font class="preprocessor"></font><font class="preprocessor">#endif</font> +00052 <font class="preprocessor"></font> +00053 +00054 <font class="preprocessor">#ifdef NL_DEBUG</font> +00055 <font class="preprocessor"></font><font class="comment">// Test error in debug mode</font> +00056 <font class="keywordtype">void</font> <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>() +00057 { +00058 ALuint errcode = alGetError(); +00059 <font class="keywordflow">switch</font>( errcode ) +00060 { +00061 <font class="keywordflow">case</font> AL_NO_ERROR : <font class="keywordflow">break</font>; +00062 <font class="keywordflow">case</font> AL_INVALID_NAME : <a class="code" href="debug_8h.html#a3">nlerror</a>( <font class="stringliteral">"OpenAL: Invalid name"</font> ); +00063 <font class="keywordflow">case</font> AL_INVALID_ENUM : <a class="code" href="debug_8h.html#a3">nlerror</a>( <font class="stringliteral">"OpenAL: Invalid enum"</font> ); +00064 <font class="keywordflow">case</font> AL_INVALID_VALUE : <a class="code" href="debug_8h.html#a3">nlerror</a>( <font class="stringliteral">"OpenAL: Invalid value"</font> ); +00065 <font class="keywordflow">case</font> AL_INVALID_OPERATION : <a class="code" href="debug_8h.html#a3">nlerror</a>( <font class="stringliteral">"OpenAL: Invalid operation"</font> ); +00066 <font class="keywordflow">case</font> AL_OUT_OF_MEMORY : <a class="code" href="debug_8h.html#a3">nlerror</a>( <font class="stringliteral">"OpenAL: Out of memory"</font> ); +00067 <font class="comment">// alGetString( errcode ) seems to fail !</font> +00068 } +00069 } +00070 <font class="preprocessor">#endif</font> +00071 <font class="preprocessor"></font> +00072 +<a name="l00073"></a><a class="code" href="sound__driver__al_8cpp.html#a0">00073</a> <font class="preprocessor">#define INITIAL_BUFFERS 8</font> +<a name="l00074"></a><a class="code" href="sound__driver__al_8cpp.html#a1">00074</a> <font class="preprocessor"></font><font class="preprocessor">#define INITIAL_SOURCES 8</font> +<a name="l00075"></a><a class="code" href="sound__driver__al_8cpp.html#a2">00075</a> <font class="preprocessor"></font><font class="preprocessor">#define BUFFER_ALLOC_RATE 8</font> +<a name="l00076"></a><a class="code" href="sound__driver__al_8cpp.html#a3">00076</a> <font class="preprocessor"></font><font class="preprocessor">#define SOURCE_ALLOC_RATE 8</font> +00077 <font class="preprocessor"></font> +<a name="l00078"></a><a class="code" href="sound__driver__al_8cpp.html#a4">00078</a> <font class="preprocessor">#define ROLLOFF_FACTOR_DEFAULT 1.0f</font> +00079 <font class="preprocessor"></font> +00080 <font class="comment">/*</font> +00081 <font class="comment"> * Sound driver instance creation</font> +00082 <font class="comment"> */</font> +00083 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00084 <font class="preprocessor"></font> +00085 __declspec(dllexport) ISoundDriver *NLSOUND_createISoundDriverInstance() +00086 { +00087 CSoundDriverAL *driver = <font class="keyword">new</font> CSoundDriverAL(); +00088 driver->init(); +00089 <font class="keywordflow">return</font> driver; +00090 } +00091 +00092 __declspec(dllexport) <a class="code" href="types__nl_8h.html#a9">uint32</a> NLSOUND_interfaceVersion () +00093 { +00094 <font class="keywordflow">return</font> ISoundDriver::InterfaceVersion; +00095 } +00096 +00097 <font class="preprocessor">#elif defined (NL_OS_UNIX)</font> +00098 <font class="preprocessor"></font> +00099 <font class="keyword">extern</font> <font class="stringliteral">"C"</font> +00100 { +00101 ISoundDriver* NLSOUND_createISoundDriverInstance () +00102 { +00103 CSoundDriverAL *driver = <font class="keyword">new</font> CSoundDriverAL(); +00104 driver->init(); +00105 <font class="keywordflow">return</font> driver; +00106 } +00107 +00108 <a class="code" href="types__nl_8h.html#a9">uint32</a> NLSOUND_interfaceVersion () +00109 { +00110 <font class="keywordflow">return</font> ISoundDriver::InterfaceVersion; +00111 } +00112 } +00113 +00114 <font class="preprocessor">#endif // NL_OS_UNIX</font> +00115 <font class="preprocessor"></font> +00116 +00117 <font class="comment">// The instance of the singleton</font> +<a name="l00118"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#r0">00118</a> CSoundDriverAL *CSoundDriverAL::_Instance = NULL; +00119 +00120 +00121 <font class="comment">/*</font> +00122 <font class="comment"> * Constructor</font> +00123 <font class="comment"> */</font> +<a name="l00124"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#a0">00124</a> CSoundDriverAL::CSoundDriverAL() : +00125 ISoundDriver(), _NbExpBuffers( 0 ), _NbExpSources( 0 ), _RolloffFactor( 1.0f ) +00126 { +00127 <font class="keywordflow">if</font> ( <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#r0">_Instance</a> == NULL ) +00128 { +00129 <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#r0">_Instance</a> = <font class="keyword">this</font>; +00130 } +00131 <font class="keywordflow">else</font> +00132 { +00133 <a class="code" href="debug_8h.html#a3">nlerror</a>( <font class="stringliteral">"Sound driver singleton instanciated twice"</font> ); +00134 } +00135 } +00136 +00137 +00138 <font class="comment">/*</font> +00139 <font class="comment"> * Destructor</font> +00140 <font class="comment"> */</font> +<a name="l00141"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#a7">00141</a> CSoundDriverAL::~CSoundDriverAL() +00142 { +00143 <font class="comment">// Remove the allocated (but not exported) source and buffer names</font> +00144 alDeleteSources( <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b6">compactAliveNames</a>( <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o1">_Sources</a>, alIsSource ), &*<a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o1">_Sources</a>.begin() ); +00145 alDeleteBuffers( <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b6">compactAliveNames</a>( <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o0">_Buffers</a>, alIsBuffer ), &*<a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o0">_Buffers</a>.begin() ); +00146 +00147 <font class="comment">// OpenAL exit</font> +00148 alutExit(); +00149 +00150 <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#r0">_Instance</a> = NULL; +00151 } +00152 +00153 +00154 <font class="comment">/*</font> +00155 <font class="comment"> * Initialization</font> +00156 <font class="comment"> */</font> +<a name="l00157"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#a1">00157</a> <font class="keywordtype">bool</font> CSoundDriverAL::init() +00158 { +00159 <font class="comment">// OpenAL initialization</font> +00160 alutInit( NULL, NULL ); +00161 +00162 <font class="comment">// Display version information</font> +00163 <font class="keyword">const</font> ALubyte *alversion, *alrenderer, *alvendor, *alext; +00164 alversion = alGetString( AL_VERSION ); +00165 alrenderer = alGetString( AL_RENDERER ); +00166 alvendor = alGetString( AL_VENDOR ); +00167 alext = alGetString( AL_EXTENSIONS ); +00168 <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00169 <a class="code" href="debug_8h.html#a1">nlinfo</a>( <font class="stringliteral">"Loading OpenAL lib: %s, %s, %s"</font>, alversion, alrenderer, alvendor ); +00170 <a class="code" href="debug_8h.html#a1">nlinfo</a>( <font class="stringliteral">"Listing extensions: %s"</font>, alext ); +00171 +00172 <font class="preprocessor">#ifdef EAX_AVAILABLE</font> +00173 <font class="preprocessor"></font> <font class="comment">// Set EAX environment if EAX is available</font> +00174 <font class="keywordflow">if</font> ( alIsExtensionPresent((ALubyte *)<font class="stringliteral">"EAX"</font>) == AL_TRUE ) <font class="comment">// or EAX2.0</font> +00175 { +00176 <a class="code" href="debug_8h.html#a1">nlinfo</a>( <font class="stringliteral">"Initializing EAX"</font> ); +00177 EAXSetProp = (EAXSet)alGetProcAddress((ALubyte*)<font class="stringliteral">"EAXSet"</font>); +00178 EAXGetProp = (EAXGet)alGetProcAddress((ALubyte*)<font class="stringliteral">"EAXGet"</font>); +00179 <font class="keywordflow">if</font> ( EAXSetProp != NULL ) +00180 { +00181 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> ulEAXVal; +00182 <font class="keywordtype">long</font> lGlobalReverb; +00183 lGlobalReverb = 0; +00184 EAXSetProp( &DSPROPSETID_EAX_ListenerProperties, DSPROPERTY_EAXLISTENER_ROOM, 0, &lGlobalReverb, <font class="keyword">sizeof</font>(<font class="keywordtype">unsigned</font> <font class="keywordtype">long</font>) ); +00185 ulEAXVal = EAX_ENVIRONMENT_GENERIC; +00186 EAXSetProp( &DSPROPSETID_EAX_ListenerProperties, DSPROPERTY_EAXLISTENER_ENVIRONMENT, 0, &ulEAXVal, <font class="keyword">sizeof</font>(<font class="keywordtype">unsigned</font> <font class="keywordtype">long</font>) ); +00187 } +00188 } +00189 <font class="keywordflow">else</font> +00190 <font class="preprocessor">#endif</font> +00191 <font class="preprocessor"></font> { +00192 <a class="code" href="debug_8h.html#a1">nlinfo</a>( <font class="stringliteral">"EAX not available"</font> ); +00193 } +00194 +00195 <font class="comment">// Choose the I3DL2 model (same as DirectSound3D)</font> +00196 alDistanceModel( AL_INVERSE_DISTANCE_CLAMPED ); +00197 <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00198 +00199 <font class="comment">// Initial buffers and sources allocation</font> +00200 <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b4">allocateNewItems</a>( alGenBuffers, alIsBuffer, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o0">_Buffers</a>, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o2">_NbExpBuffers</a>, <a class="code" href="sound__driver__al_8cpp.html#a0">INITIAL_BUFFERS</a> ); +00201 <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b4">allocateNewItems</a>( alGenSources, alIsSource, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o1">_Sources</a>, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o3">_NbExpSources</a>, <a class="code" href="sound__driver__al_8cpp.html#a1">INITIAL_SOURCES</a> ); +00202 +00203 <font class="keywordflow">return</font> <font class="keyword">true</font>; +00204 } +00205 +00206 +00207 <font class="comment">/*</font> +00208 <font class="comment"> * Allocate nb new items</font> +00209 <font class="comment"> */</font> +<a name="l00210"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b4">00210</a> <font class="keywordtype">void</font> CSoundDriverAL::allocateNewItems( <a class="code" href="namespaceNLSOUND.html#a12">TGenFunctionAL</a> algenfunc, <a class="code" href="namespaceNLSOUND.html#a13">TTestFunctionAL</a> altestfunc, +00211 vector<ALuint>& names, <a class="code" href="types__nl_8h.html#a13">uint</a> <a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a>, <a class="code" href="types__nl_8h.html#a13">uint</a> nb ) +00212 { +00213 <a class="code" href="debug_8h.html#a6">nlassert</a>( <a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a> == names.size() ); +00214 names.resize( <a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a> + nb ); +00215 <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b5">generateItems</a>( algenfunc, altestfunc, nb, &(names[<a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a>]) ); +00216 } +00217 +00218 +00219 <font class="comment">/*</font> +00220 <font class="comment"> * throwGenException</font> +00221 <font class="comment"> */</font> +00222 <font class="keywordtype">void</font> <a class="code" href="namespaceNLSOUND.html#a48">ThrowGenException</a>( <a class="code" href="namespaceNLSOUND.html#a12">TGenFunctionAL</a> algenfunc ) +00223 { +00224 <font class="keywordflow">if</font> ( algenfunc == alGenBuffers ) +00225 <font class="keywordflow">throw</font> ESoundDriverGenBuf(); +00226 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ( algenfunc == alGenSources ) +00227 <font class="keywordflow">throw</font> ESoundDriverGenSrc(); +00228 <font class="keywordflow">else</font> +00229 <a class="code" href="debug_8h.html#a12">nlstop</a>; +00230 } +00231 +00232 <font class="comment">/*</font> +00233 <font class="comment"> * Generate nb buffers/sources</font> +00234 <font class="comment"> */</font> +<a name="l00235"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b5">00235</a> <font class="keywordtype">void</font> CSoundDriverAL::generateItems( <a class="code" href="namespaceNLSOUND.html#a12">TGenFunctionAL</a> algenfunc, <a class="code" href="namespaceNLSOUND.html#a13">TTestFunctionAL</a> altestfunc, <a class="code" href="types__nl_8h.html#a13">uint</a> nb, ALuint *array ) +00236 { +00237 algenfunc( nb, array ); +00238 +00239 <font class="comment">// Error handling</font> +00240 <font class="keywordflow">if</font> ( alGetError() != AL_NO_ERROR ) +00241 { +00242 <a class="code" href="namespaceNLSOUND.html#a48">ThrowGenException</a>( algenfunc ); +00243 } +00244 +00245 <font class="comment">// Check buffers</font> +00246 <a class="code" href="types__nl_8h.html#a13">uint</a> i; +00247 <font class="keywordflow">for</font> ( i=0; i!=nb; i++ ) +00248 { +00249 <font class="keywordflow">if</font> ( ! altestfunc( array[i] ) ) +00250 { +00251 <a class="code" href="namespaceNLSOUND.html#a48">ThrowGenException</a>( algenfunc ); +00252 } +00253 } +00254 } +00255 +00256 +00257 <font class="comment">/*</font> +00258 <font class="comment"> * Create a sound buffer</font> +00259 <font class="comment"> */</font> +<a name="l00260"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#a2">00260</a> IBuffer *CSoundDriverAL::createBuffer() +00261 { +00262 <font class="keywordflow">return</font> <font class="keyword">new</font> CBufferAL( <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b7">createItem</a>( alGenBuffers, alIsBuffer, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o0">_Buffers</a>, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o2">_NbExpBuffers</a>, <a class="code" href="sound__driver__al_8cpp.html#a2">BUFFER_ALLOC_RATE</a> ) ); +00263 } +00264 +00265 +00266 <font class="comment">/*</font> +00267 <font class="comment"> * Create a source</font> +00268 <font class="comment"> */</font> +<a name="l00269"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#a4">00269</a> ISource *CSoundDriverAL::createSource() +00270 { +00271 CSourceAL *sourceal = <font class="keyword">new</font> CSourceAL( <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b7">createItem</a>( alGenSources, alIsSource, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o1">_Sources</a>, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o3">_NbExpSources</a>, <a class="code" href="sound__driver__al_8cpp.html#a3">SOURCE_ALLOC_RATE</a> ) ); +00272 <font class="keywordflow">if</font> ( <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o4">_RolloffFactor</a> != <a class="code" href="sound__driver__al_8cpp.html#a4">ROLLOFF_FACTOR_DEFAULT</a> ) +00273 { +00274 alSourcef( sourceal->sourceName(), AL_ROLLOFF_FACTOR, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o4">_RolloffFactor</a> ); +00275 } +00276 <font class="keywordflow">return</font> sourceal; +00277 } +00278 +00279 +00280 <font class="comment">/*</font> +00281 <font class="comment"> * Create a sound buffer or a sound source</font> +00282 <font class="comment"> */</font> +<a name="l00283"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b7">00283</a> ALuint CSoundDriverAL::createItem( <a class="code" href="namespaceNLSOUND.html#a12">TGenFunctionAL</a> algenfunc, <a class="code" href="namespaceNLSOUND.html#a13">TTestFunctionAL</a> altestfunc, +00284 vector<ALuint>& names, <a class="code" href="types__nl_8h.html#a13">uint</a>& <a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a>, <a class="code" href="types__nl_8h.html#a13">uint</a> allocrate ) +00285 { +00286 <a class="code" href="debug_8h.html#a6">nlassert</a>( <a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a> <= names.size() ); +00287 <font class="keywordflow">if</font> ( <a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a> == names.size() ) +00288 { +00289 <font class="comment">// Generate new items</font> +00290 <a class="code" href="types__nl_8h.html#a13">uint</a> nbalive = <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b6">compactAliveNames</a>( names, altestfunc ); +00291 <font class="keywordflow">if</font> ( nbalive == names.size() ) +00292 { +00293 <font class="comment">// Extend vector of names</font> +00294 <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b4">allocateNewItems</a>( algenfunc, altestfunc, names, <a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a>, allocrate ); +00295 } +00296 <font class="keywordflow">else</font> +00297 { +00298 <font class="comment">// Take the room of the deleted names</font> +00299 <a class="code" href="debug_8h.html#a6">nlassert</a>( nbalive < names.size() ); +00300 <a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a> = nbalive; +00301 <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b5">generateItems</a>( algenfunc, altestfunc, names.size() - nbalive, &(names[nbalive]) ); +00302 } +00303 } +00304 +00305 <font class="comment">// Return the name of the item</font> +00306 <a class="code" href="debug_8h.html#a6">nlassert</a>( <a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a> < names.size() ); +00307 ALuint itemname = names[<a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a>]; +00308 <a class="code" href="driver__opengl__extension__def_8h.html#a225">index</a>++; +00309 <font class="keywordflow">return</font> itemname; +00310 } +00311 +00312 +00313 <font class="comment">/*</font> +00314 <font class="comment"> * Remove names of deleted buffers and return the number of valid buffers</font> +00315 <font class="comment"> */</font> +<a name="l00316"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b6">00316</a> <a class="code" href="types__nl_8h.html#a13">uint</a> CSoundDriverAL::compactAliveNames( vector<ALuint>& names, <a class="code" href="namespaceNLSOUND.html#a13">TTestFunctionAL</a> altestfunc ) +00317 { +00318 vector<ALuint>::iterator iball, ibcompacted; +00319 <font class="keywordflow">for</font> ( iball=names.begin(), ibcompacted=names.begin(); iball!=names.end(); ++iball ) +00320 { +00321 <font class="comment">// iball is incremented every iteration</font> +00322 <font class="comment">// ibcompacted is not incremented if a buffer is not valid anymore</font> +00323 <font class="keywordflow">if</font> ( altestfunc( *iball ) ) +00324 { +00325 *ibcompacted = *iball; +00326 ++ibcompacted; +00327 } +00328 } +00329 <a class="code" href="debug_8h.html#a6">nlassert</a>( ibcompacted <= names.end() ); +00330 <font class="keywordflow">return</font> ibcompacted - names.begin(); +00331 } +00332 +00333 +00334 <font class="comment">/*</font> +00335 <font class="comment"> * Remove a buffer</font> +00336 <font class="comment"> */</font> +<a name="l00337"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b2">00337</a> <font class="keywordtype">void</font> CSoundDriverAL::removeBuffer( IBuffer *buffer ) +00338 { +00339 <a class="code" href="debug_8h.html#a6">nlassert</a>( buffer != NULL ); +00340 CBufferAL *bufferAL = dynamic_cast<CBufferAL*>(buffer); +00341 <font class="keywordflow">if</font> ( ! <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b8">deleteItem</a>( bufferAL->bufferName(), alDeleteBuffers, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o0">_Buffers</a> ) ) +00342 { +00343 <a class="code" href="debug_8h.html#a2">nlwarning</a>( <font class="stringliteral">"Deleting buffer: name not found"</font> ); +00344 } +00345 } +00346 +00347 +00348 <font class="comment">/*</font> +00349 <font class="comment"> * Remove a source</font> +00350 <font class="comment"> */</font> +<a name="l00351"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b3">00351</a> <font class="keywordtype">void</font> CSoundDriverAL::removeSource( ISource *source ) +00352 { +00353 <a class="code" href="debug_8h.html#a6">nlassert</a>( source != NULL ); +00354 CSourceAL *sourceAL = dynamic_cast<CSourceAL*>(source); +00355 <font class="keywordflow">if</font> ( ! <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b8">deleteItem</a>( sourceAL->sourceName(), alDeleteSources, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o1">_Sources</a> ) ) +00356 { +00357 <a class="code" href="debug_8h.html#a2">nlwarning</a>( <font class="stringliteral">"Deleting source: name not found"</font> ); +00358 } +00359 } +00360 +00361 +00362 <font class="comment">/*</font> +00363 <font class="comment"> * Delete a buffer or a source</font> +00364 <font class="comment"> */</font> +<a name="l00365"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#b8">00365</a> <font class="keywordtype">bool</font> CSoundDriverAL::deleteItem( ALuint name, <a class="code" href="namespaceNLSOUND.html#a12">TGenFunctionAL</a> aldeletefunc, vector<ALuint>& names ) +00366 { +00367 vector<ALuint>::iterator ibn = find( names.begin(), names.end(), name ); +00368 <font class="keywordflow">if</font> ( ibn == names.end() ) +00369 { +00370 <font class="keywordflow">return</font> <font class="keyword">false</font>; +00371 } +00372 aldeletefunc( 1, &*ibn ); +00373 *ibn = AL_NONE; +00374 <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00375 <font class="keywordflow">return</font> <font class="keyword">true</font>; +00376 } +00377 +00378 +00379 <font class="comment">/*</font> +00380 <font class="comment"> * Create the listener instance</font> +00381 <font class="comment"> */</font> +<a name="l00382"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#a3">00382</a> IListener *CSoundDriverAL::createListener() +00383 { +00384 <a class="code" href="debug_8h.html#a6">nlassert</a>( CListenerAL::instance() == NULL ); +00385 <font class="keywordflow">return</font> <font class="keyword">new</font> CListenerAL(); +00386 } +00387 +00388 +00389 <font class="comment">/*</font> +00390 <font class="comment"> * Apply changes of rolloff factor to all sources</font> +00391 <font class="comment"> */</font> +<a name="l00392"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#a5">00392</a> <font class="keywordtype">void</font> CSoundDriverAL::applyRolloffFactor( <font class="keywordtype">float</font> f ) +00393 { +00394 <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o4">_RolloffFactor</a> = f; +00395 vector<ALuint>::iterator ibn; +00396 <font class="keywordflow">for</font> ( ibn=<a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o1">_Sources</a>.begin(); ibn!=<a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o1">_Sources</a>.end(); ++ibn ) +00397 { +00398 alSourcef( *ibn, AL_ROLLOFF_FACTOR, <a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#o4">_RolloffFactor</a> ); +00399 } +00400 <a class="code" href="sound__driver__al_8h.html#a0">TestALError</a>(); +00401 } +00402 +00403 +00404 <font class="comment">/*</font> +00405 <font class="comment"> * Helper for loadWavFile()</font> +00406 <font class="comment"> */</font> +00407 <a class="code" href="namespaceNLSOUND.html#a51">TSampleFormat</a> <a class="code" href="namespaceNLSOUND.html#a49">ALtoNLSoundFormat</a>( ALenum alformat ) +00408 { +00409 <font class="keywordflow">switch</font> ( alformat ) +00410 { +00411 <font class="keywordflow">case</font> AL_FORMAT_MONO8 : <font class="keywordflow">return</font> <a class="code" href="namespaceNLSOUND.html#a51a8">Mono8</a>; +00412 <font class="keywordflow">case</font> AL_FORMAT_MONO16 : <font class="keywordflow">return</font> <a class="code" href="namespaceNLSOUND.html#a51a9">Mono16</a>; +00413 <font class="keywordflow">case</font> AL_FORMAT_STEREO8 : <font class="keywordflow">return</font> <a class="code" href="namespaceNLSOUND.html#a51a10">Stereo8</a>; +00414 <font class="keywordflow">case</font> AL_FORMAT_STEREO16 : <font class="keywordflow">return</font> <a class="code" href="namespaceNLSOUND.html#a51a11">Stereo16</a>; +00415 <font class="keywordflow">default</font> : <a class="code" href="debug_8h.html#a12">nlstop</a>; <font class="keywordflow">return</font> <a class="code" href="namespaceNLSOUND.html#a51a8">Mono8</a>; +00416 } +00417 } +00418 +00419 +00420 <font class="comment">/*</font> +00421 <font class="comment"> * Temp</font> +00422 <font class="comment"> */</font> +<a name="l00423"></a><a class="code" href="classNLSOUND_1_1CSoundDriverAL.html#a6">00423</a> <font class="keywordtype">bool</font> CSoundDriverAL::loadWavFile( IBuffer *destbuffer, <font class="keyword">const</font> <font class="keywordtype">char</font> *filename ) +00424 { +00425 <font class="comment">// Currently, the OpenAL UT headers are different between Windows and Linux versions</font> +00426 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00427 <font class="preprocessor"></font> ALsizei <a class="code" href="lexlang_8cpp.html#a56">size</a>,freq; +00428 ALenum <a class="code" href="driver__opengl__extension__def_8h.html#a259">format</a>; +00429 ALvoid *<a class="code" href="driver__opengl__extension__def_8h.html#a255">data</a>; +00430 ALboolean loop; +00431 alutLoadWAVFile( const_cast<char*>(filename), &<a class="code" href="driver__opengl__extension__def_8h.html#a259">format</a>, &<a class="code" href="driver__opengl__extension__def_8h.html#a255">data</a>, &<a class="code" href="lexlang_8cpp.html#a56">size</a>, &freq, &loop ); <font class="comment">// last arg in some al.h</font> +00432 <font class="preprocessor">#else</font> +00433 <font class="preprocessor"></font> ALsizei bits; +00434 ALsizei <a class="code" href="lexlang_8cpp.html#a56">size</a>,freq; +00435 ALsizei <a class="code" href="driver__opengl__extension__def_8h.html#a259">format</a>; +00436 ALvoid *<a class="code" href="driver__opengl__extension__def_8h.html#a255">data</a>; +00437 alutLoadWAV( const_cast<char*>(filename), &<a class="code" href="driver__opengl__extension__def_8h.html#a255">data</a>, &<a class="code" href="driver__opengl__extension__def_8h.html#a259">format</a>, &<a class="code" href="lexlang_8cpp.html#a56">size</a>, &bits, &freq ); +00438 <font class="preprocessor">#endif</font> +00439 <font class="preprocessor"></font> <font class="keywordflow">if</font> ( <a class="code" href="driver__opengl__extension__def_8h.html#a255">data</a> == NULL ) +00440 { +00441 <font class="keywordflow">return</font> <font class="keyword">false</font>; +00442 } +00443 destbuffer->setFormat( <a class="code" href="namespaceNLSOUND.html#a49">ALtoNLSoundFormat</a>(<a class="code" href="driver__opengl__extension__def_8h.html#a259">format</a>), freq ); +00444 destbuffer->fillBuffer( <a class="code" href="driver__opengl__extension__def_8h.html#a255">data</a>, <a class="code" href="lexlang_8cpp.html#a56">size</a> ); +00445 <font class="preprocessor">#ifdef NL_OS_WINDOWS</font> +00446 <font class="preprocessor"></font> alutUnloadWAV(<a class="code" href="driver__opengl__extension__def_8h.html#a259">format</a>,<a class="code" href="driver__opengl__extension__def_8h.html#a255">data</a>,<a class="code" href="lexlang_8cpp.html#a56">size</a>,freq); <font class="comment">// Where is it on Linux ?!?</font> +00447 <font class="preprocessor">#endif</font> +00448 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">true</font>; +00449 } +00450 +00451 +00452 } <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> |