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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>source_dsound.cpp</h1><a href="source__dsound_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
+00027 <font class="preprocessor">#include "<a class="code" href="stddsound_8h.html">stddsound.h</a>"</font>
+00028 <font class="preprocessor">#include "<a class="code" href="source__dsound_8h.html">source_dsound.h</a>"</font>
+00029 <font class="preprocessor">#include "<a class="code" href="sound__driver__dsound_8h.html">sound_driver_dsound.h</a>"</font>
+00030 <font class="preprocessor">#include "<a class="code" href="buffer__dsound_8h.html">buffer_dsound.h</a>"</font>
+00031 <font class="preprocessor">#include "<a class="code" href="listener__dsound_8h.html">listener_dsound.h</a>"</font>
+00032
+00033
+00034
+00035 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
+00036
+00037
+00038 <font class="keyword">namespace </font>NLSOUND {
+00039
+00040
+00041 <font class="preprocessor">#if NLSOUND_PROFILE</font>
+00042 <font class="preprocessor"></font>
+00043 <font class="preprocessor"> #define INITTIME(_var) TTicks _var = CTime::getPerformanceTime()</font>
+00044 <font class="preprocessor"></font>
+00045 <font class="preprocessor"> #define DEBUG_POSITIONS 1</font>
+00046 <font class="preprocessor"></font>
+00047 <font class="preprocessor"> #if DEBUG_POSITIONS</font>
+00048 <font class="preprocessor"></font><font class="preprocessor"> #define DBGPOS(_a) nldebug ## _a</font>
+00049 <font class="preprocessor"></font><font class="preprocessor"> #else</font>
+00050 <font class="preprocessor"></font><font class="preprocessor"> #define DBGPOS(_a) </font>
+00051 <font class="preprocessor"></font><font class="preprocessor"> #endif</font>
+00052 <font class="preprocessor"></font>
+00053 <font class="preprocessor">#else</font>
+<a name="l00054"></a><a class="code" href="source__dsound_8cpp.html#a0">00054</a> <font class="preprocessor"></font><font class="preprocessor"> #define INITTIME(_var)</font>
+<a name="l00055"></a><a class="code" href="source__dsound_8cpp.html#a1">00055</a> <font class="preprocessor"></font><font class="preprocessor"> #define DBGPOS(_a) </font>
+00056 <font class="preprocessor"></font><font class="preprocessor">#endif</font>
+00057 <font class="preprocessor"></font>
+00058
+00059
+<a name="l00060"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">00060</a> uint32 CSourceDSound::_SecondaryBufferSize = 65536;
+<a name="l00061"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#r1">00061</a> uint32 CSourceDSound::_SwapCopySize = 32768;
+<a name="l00062"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">00062</a> uint32 CSourceDSound::_UpdateCopySize = 16384;
+<a name="l00063"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#r5">00063</a> uint32 CSourceDSound::_XFadeSize = 64;
+<a name="l00064"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#r2">00064</a> uint CSourceDSound::_DefaultChannels = 1;
+<a name="l00065"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#r3">00065</a> uint CSourceDSound::_DefaultSampleRate = 22050;
+<a name="l00066"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#r4">00066</a> uint CSourceDSound::_DefaultSampleSize = 16;
+00067
+00068
+00069
+<a name="l00070"></a><a class="code" href="source__dsound_8cpp.html#a2">00070</a> <font class="preprocessor">#define NLSOUND_MIN(_a,_b) (((_a) &lt; (_b)) ? (_a) : (_b))</font>
+<a name="l00071"></a><a class="code" href="source__dsound_8cpp.html#a3">00071</a> <font class="preprocessor"></font><font class="preprocessor">#define NLSOUND_DISTANCE(_from, _to, _period) (((_to) &gt; (_from)) ? (_to) - (_from) : (_period) + (_to) - (_from))</font>
+00072 <font class="preprocessor"></font>
+00073
+00074 <font class="preprocessor">#if NLSOUND_PROFILE</font>
+00075 <font class="preprocessor"></font>
+00076 <font class="comment">// Static variables used for profiling</font>
+00077 <font class="keywordtype">double</font> CSourceDSound::_LastSwapTime = 0.0;
+00078 <font class="keywordtype">double</font> CSourceDSound::_TotalSwapTime = 0.0;
+00079 <font class="keywordtype">double</font> CSourceDSound::_MaxSwapTime = 0.0;
+00080 <font class="keywordtype">double</font> CSourceDSound::_MinSwapTime = 1000000.0;
+00081 uint32 CSourceDSound::_SwapCount = 0;
+00082 <font class="keywordtype">double</font> CSourceDSound::_PosTime = 0.0;
+00083 <font class="keywordtype">double</font> CSourceDSound::_LockTime = 0.0;
+00084 <font class="keywordtype">double</font> CSourceDSound::_CopyTime = 0.0;
+00085 <font class="keywordtype">double</font> CSourceDSound::_UnlockTime = 0.0;
+00086 uint32 CSourceDSound::_CopyCount = 0;
+00087 <font class="keywordtype">double</font> CSourceDSound::_TotalUpdateTime = 0.0;
+00088 <font class="keywordtype">double</font> CSourceDSound::_MaxUpdateTime = 0.0;
+00089 <font class="keywordtype">double</font> CSourceDSound::_MinUpdateTime = 1000000.0;
+00090 uint32 CSourceDSound::_UpdateCount = 0;
+00091 uint32 CSourceDSound::_TotalUpdateSize = 0;
+00092 <font class="preprocessor">#endif</font>
+00093 <font class="preprocessor"></font>
+00094
+00095
+00096 <font class="comment">// ******************************************************************</font>
+00097
+<a name="l00098"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#a0">00098</a> CSourceDSound::CSourceDSound( uint sourcename ) : ISource(), _SourceName(sourcename)
+00099 {
+00100 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> = 0;
+00101 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a> = 0;
+00102 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> = 0;
+00103 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a29">NL_DSOUND_SILENCED</a>;
+00104 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> = 0;
+00105 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> = 0;
+00106 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = 0;
+00107 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> = 0;
+00108 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o3">_Loop</a> = <font class="keyword">false</font>;
+00109 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a> = 0;
+00110 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a> = <a class="code" href="namespaceNLSOUND.html#a86a33">NL_DSOUND_TAIL1</a>;
+00111 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> = <a class="code" href="namespaceNLSOUND.html#a85a32">NL_DSOUND_STOPPED</a>;
+00112 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o14">_Freq</a> = 1.0f;
+00113 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o15">_SampleRate</a> = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r3">_DefaultSampleRate</a>;
+00114 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o16">_IsUsed</a> = <font class="keyword">false</font>;
+00115 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o18">_Gain</a> = 1.0f;
+00116 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o17">_Volume</a> = 0;
+00117 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o19">_Alpha</a> = 0.0;
+00118 InitializeCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00119 }
+00120
+00121
+00122 <font class="comment">// ******************************************************************</font>
+00123
+<a name="l00124"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#a1">00124</a> CSourceDSound::~CSourceDSound()
+00125 {
+00126 <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"Destroying DirectSound source"</font>);
+00127
+00128 CSoundDriverDSound::instance()-&gt;removeSource(<font class="keyword">this</font>);
+00129
+00130 EnterCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00131
+00132 <font class="comment">// Release the DirectSound buffer within the critical zone</font>
+00133 <font class="comment">// to avoid a call to update during deconstruction</font>
+00134 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c0">release</a>();
+00135
+00136 LeaveCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00137 DeleteCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00138 }
+00139
+00140
+00141 <font class="comment">// ******************************************************************</font>
+00142
+<a name="l00143"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c0">00143</a> <font class="keywordtype">void</font> CSourceDSound::release()
+00144 {
+00145 <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> = 0;
+00146
+00147 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> != 0)
+00148 {
+00149 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Stop();
+00150 }
+00151
+00152 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != 0)
+00153 {
+00154 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;Release();
+00155 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> = 0;
+00156 }
+00157
+00158 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> != 0)
+00159 {
+00160 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Release();
+00161 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> = 0;
+00162 }
+00163
+00164 }
+00165
+00166 <font class="comment">// ******************************************************************</font>
+00167
+<a name="l00168"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#a2">00168</a> <font class="keywordtype">void</font> CSourceDSound::init(LPDIRECTSOUND directSound)
+00169 {
+00170
+00171 <font class="comment">// Initialize the buffer format</font>
+00172 WAVEFORMATEX <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>;
+00173
+00174 <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.cbSize = <font class="keyword">sizeof</font>(WAVEFORMATEX);
+00175 <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.nChannels = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r2">_DefaultChannels</a>;
+00176 <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.wBitsPerSample = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r4">_DefaultSampleSize</a>;
+00177 <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.nSamplesPerSec = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r3">_DefaultSampleRate</a>;
+00178 <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.nBlockAlign = <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.nChannels * <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.wBitsPerSample / 8;
+00179 <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.nAvgBytesPerSec = <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.nSamplesPerSec * <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.nBlockAlign;
+00180 <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>.wFormatTag = WAVE_FORMAT_PCM;
+00181
+00182
+00183 <font class="comment">// Initialize the buffer description </font>
+00184
+00185 DSBUFFERDESC desc;
+00186
+00187 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#l0">CSoundDriverDSound</a>* driver = CSoundDriverDSound::instance();
+00188
+00189
+00190 ZeroMemory(&amp;desc, <font class="keyword">sizeof</font>(DSBUFFERDESC));
+00191 desc.dwSize = <font class="keyword">sizeof</font>(DSBUFFERDESC);
+00192 desc.lpwfxFormat = &amp;<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>;
+00193 desc.dwBufferBytes = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+00194 desc.dwReserved = 0;
+00195
+00196 <font class="keywordflow">if</font> (driver-&gt;countHw3DBuffers() &gt; 0)
+00197 {
+00198 <font class="comment">//nldebug("Source: Allocating 3D buffer in hardware");</font>
+00199 desc.dwFlags = DSBCAPS_GLOBALFOCUS | DSBCAPS_LOCHARDWARE | DSBCAPS_GETCURRENTPOSITION2
+00200 | DSBCAPS_CTRL3D | DSBCAPS_CTRLVOLUME | DSBCAPS_CTRLFREQUENCY | DSBCAPS_MUTE3DATMAXDISTANCE;
+00201 }
+00202 <font class="keywordflow">else</font>
+00203 {
+00204 <font class="comment">//nldebug("Source: Allocating 3D buffer in software");</font>
+00205 desc.dwFlags = DSBCAPS_GLOBALFOCUS | DSBCAPS_LOCSOFTWARE | DSBCAPS_GETCURRENTPOSITION2
+00206 | DSBCAPS_CTRL3D | DSBCAPS_CTRLVOLUME | DSBCAPS_CTRLFREQUENCY | DSBCAPS_MUTE3DATMAXDISTANCE;
+00207 desc.guid3DAlgorithm = DS3DALG_NO_VIRTUALIZATION;
+00208 <font class="comment">//desc.guid3DAlgorithm = DS3DALG_HRTF_FULL;</font>
+00209 }
+00210
+00211
+00212 <font class="comment">// Allocate the secondary buffer</font>
+00213
+00214 <font class="keywordflow">if</font> (FAILED(directSound-&gt;CreateSoundBuffer(&amp;desc, &amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>, NULL)))
+00215 {
+00216 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Source: Failed to create a buffer with 3D capabilities."</font>);
+00217
+00218 ZeroMemory(&amp;desc, <font class="keyword">sizeof</font>(DSBUFFERDESC));
+00219 desc.dwSize = <font class="keyword">sizeof</font>(DSBUFFERDESC);
+00220 desc.lpwfxFormat = &amp;<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>;
+00221 desc.dwBufferBytes = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+00222 desc.dwReserved = 0;
+00223
+00224 <font class="keywordflow">if</font> (driver-&gt;countHw2DBuffers() &gt; 0)
+00225 {
+00226 <font class="comment">//nldebug("Source: Allocating 2D buffer in hardware");</font>
+00227 desc.dwFlags = DSBCAPS_GLOBALFOCUS | DSBCAPS_LOCHARDWARE | DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_CTRLVOLUME | DSBCAPS_CTRLFREQUENCY;
+00228 }
+00229 <font class="keywordflow">else</font>
+00230 {
+00231 <font class="comment">//nldebug("Source: Allocating 2D buffer in software");</font>
+00232 desc.dwFlags = DSBCAPS_GLOBALFOCUS | DSBCAPS_LOCSOFTWARE | DSBCAPS_GETCURRENTPOSITION2 | DSBCAPS_CTRLVOLUME | DSBCAPS_CTRLFREQUENCY;
+00233 }
+00234
+00235 <font class="keywordflow">if</font> (FAILED(directSound-&gt;CreateSoundBuffer(&amp;desc, &amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>, NULL)))
+00236 {
+00237 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Failed to allocate the DirectSound secondary buffer"</font>);
+00238 }
+00239 }
+00240
+00241
+00242 <font class="comment">// Fill the buffer with silence</font>
+00243
+00244 LPVOID ptr;
+00245 DWORD bytes;
+00246
+00247 <font class="keywordflow">if</font> (FAILED(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Lock(0, 0, &amp;ptr, &amp;bytes, NULL, NULL, DSBLOCK_ENTIREBUFFER)))
+00248 {
+00249 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Failed to lock the DirectSound secondary buffer"</font>);
+00250 }
+00251
+00252 memset(ptr, 0, bytes);
+00253
+00254 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Unlock(ptr, bytes, 0, 0);
+00255
+00256 <font class="comment">// Allocate the 3D interface, if necessary</font>
+00257
+00258 <font class="keywordflow">if</font> (FAILED(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;QueryInterface(IID_IDirectSound3DBuffer, (LPVOID *) &amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>)))
+00259 {
+00260 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Failed to allocate the DirectSound 3D buffer"</font>);
+00261 }
+00262
+00263
+00264 <font class="keywordflow">if</font> (FAILED(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Play(0, 0, DSBPLAY_LOOPING)))
+00265 {
+00266 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Play failed"</font>);
+00267 }
+00268
+00269 }
+00270
+00271 <font class="comment">// ******************************************************************</font>
+00272
+<a name="l00273"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#a5">00273</a> <font class="keywordtype">void</font> CSourceDSound::reset()
+00274 {
+00275 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_8">setPitch</a>(1.0f);
+00276 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_0">setLooping</a>(<font class="keyword">false</font>);
+00277 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_6">setGain</a>(1.0f);
+00278 }
+00279
+00280
+00281 <font class="comment">// ******************************************************************</font>
+00282
+<a name="l00283"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z968_0">00283</a> <font class="keywordtype">void</font> CSourceDSound::setStaticBuffer( IBuffer *buffer )
+00284 {
+00285 EnterCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00286
+00287 <font class="comment">// If the user calls setStaticBuffer with a null buffer,</font>
+00288 <font class="comment">// stop the currently playing buffer and set it to null.</font>
+00289 <font class="comment">// Otherwise, store the buffer in the swap buffer variable.</font>
+00290 <font class="comment">// A crossfade between the current buffer and the swap buffer</font>
+00291 <font class="comment">// will be done when the user calls play.</font>
+00292 <font class="keywordflow">if</font> (buffer == 0)
+00293 {
+00294 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_3">stop</a>();
+00295 <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> = 0;
+00296 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> = 0;
+00297 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = 0;
+00298 }
+00299
+00300 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a> = <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> = buffer;
+00301
+00302 LeaveCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00303 }
+00304
+00305
+00306
+00307 <font class="comment">// ******************************************************************</font>
+00308
+<a name="l00309"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_0">00309</a> <font class="keywordtype">void</font> CSourceDSound::setLooping( <font class="keywordtype">bool</font> <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a> )
+00310 {
+00311 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o3">_Loop</a> = <a class="code" href="namespaceNLAISCRIPT.html#a20">l</a>;
+00312 }
+00313
+00314
+00315 <font class="comment">// ******************************************************************</font>
+00316
+<a name="l00317"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_1">00317</a> <font class="keywordtype">bool</font> CSourceDSound::getLooping()<font class="keyword"> const</font>
+00318 <font class="keyword"></font>{
+00319 <font class="keywordflow">return</font> <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o3">_Loop</a>;
+00320 }
+00321
+00322
+00323 <font class="comment">// ******************************************************************</font>
+00324
+<a name="l00325"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c3">00325</a> <font class="keywordtype">void</font> CSourceDSound::swap()
+00326 {
+00327 <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a>;
+00328 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> = <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a>-&gt;getSize();
+00329 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = 0;
+00330 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a> = 0;
+00331 }
+00332
+00333 <font class="comment">// ******************************************************************</font>
+00334
+<a name="l00335"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_2">00335</a> <font class="keywordtype">bool</font> CSourceDSound::play()
+00336 {
+00337 EnterCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00338
+00339 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> == 0 || ((CBufferDSound*) <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a>)-&gt;getData() == 0)
+00340 {
+00341 <font class="comment">// the sample has been unloaded, can't play!</font>
+00342
+00343 LeaveCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00344 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00345 }
+00346
+00347
+00348 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] PLAY: Enter, buffer state = %u"</font>, <font class="keyword">this</font>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a>));
+00349 <font class="keywordflow">switch</font> (_SecondaryBufferState)
+00350 {
+00351 <font class="keywordflow">case</font> <a class="code" href="namespaceNLSOUND.html#a84a27">NL_DSOUND_FILLING</a>:
+00352 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a> != 0)
+00353 {
+00354 <font class="comment">// crossfade to the new sound </font>
+00355 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] PLAY: XFading 1"</font>, <font class="keyword">this</font>));
+00356 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c7">crossFade</a>();
+00357 }
+00358 <font class="keywordflow">break</font>;
+00359
+00360 <font class="keywordflow">case</font> <a class="code" href="namespaceNLSOUND.html#a84a28">NL_DSOUND_SILENCING</a>:
+00361 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a> != 0)
+00362 {
+00363 <font class="keywordflow">if</font> ((<a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> != 0) &amp;&amp; (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> == <a class="code" href="namespaceNLSOUND.html#a85a30">NL_DSOUND_PLAYING</a>))
+00364 {
+00365 <font class="comment">// crossfade to the new sound</font>
+00366 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] PLAY: XFading 2"</font>, <font class="keyword">this</font>));
+00367 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c7">crossFade</a>();
+00368 }
+00369 <font class="keywordflow">else</font>
+00370 {
+00371 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] PLAY: Swap &amp; fadein 1"</font>, <font class="keyword">this</font>));
+00372 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c3">swap</a>();
+00373 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c9">fadeIn</a>();
+00374 }
+00375 }
+00376 <font class="keywordflow">else</font>
+00377 {
+00378 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] PLAY: Fadein"</font>, <font class="keyword">this</font>));
+00379 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = 0;
+00380 <font class="comment">// start the old sound again</font>
+00381 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c9">fadeIn</a>();
+00382 }
+00383
+00384 <font class="keywordflow">break</font>;
+00385
+00386
+00387 <font class="keywordflow">case</font> <a class="code" href="namespaceNLSOUND.html#a84a29">NL_DSOUND_SILENCED</a>:
+00388 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a> != 0)
+00389 {
+00390 <font class="comment">// fade in to the new sound</font>
+00391 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] PLAY: Swap &amp; fadein 2"</font>, <font class="keyword">this</font>));
+00392 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c3">swap</a>();
+00393 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c9">fadeIn</a>();
+00394 }
+00395 <font class="keywordflow">else</font>
+00396 {
+00397 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] PLAY: Fadein"</font>, <font class="keyword">this</font>));
+00398 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = 0;
+00399 <font class="comment">// start the old sound again</font>
+00400 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c9">fadeIn</a>();
+00401 }
+00402 }
+00403
+00404 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> = <a class="code" href="namespaceNLSOUND.html#a85a30">NL_DSOUND_PLAYING</a>;
+00405 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] PLAY: PLAYING"</font>, <font class="keyword">this</font>));
+00406
+00407 <font class="comment">//nldebug ("NLSOUND: %p play", this);</font>
+00408
+00409 LeaveCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00410
+00411 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00412 }
+00413
+00414
+00415 <font class="comment">// ******************************************************************</font>
+00416
+<a name="l00417"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_3">00417</a> <font class="keywordtype">void</font> CSourceDSound::stop()
+00418 {
+00419 EnterCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00420
+00421 <a class="code" href="namespaceNLSOUND.html#a85">TSourceDSoundUserState</a> old = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a>;
+00422
+00423 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> = <a class="code" href="namespaceNLSOUND.html#a85a32">NL_DSOUND_STOPPED</a>;
+00424 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] STOP: STOPPED"</font>, <font class="keyword">this</font>));
+00425
+00426 <font class="comment">//nldebug ("NLSOUND: %p stop", this);</font>
+00427
+00428 <font class="keywordflow">if</font> (old == <a class="code" href="namespaceNLSOUND.html#a85a30">NL_DSOUND_PLAYING</a>)
+00429 {
+00430 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c8">fadeOut</a>();
+00431 }
+00432
+00433 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = 0;
+00434
+00435 LeaveCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00436 }
+00437
+00438 <font class="comment">// ******************************************************************</font>
+00439
+<a name="l00440"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_4">00440</a> <font class="keywordtype">void</font> CSourceDSound::pause()
+00441 {
+00442 EnterCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00443
+00444 <a class="code" href="namespaceNLSOUND.html#a85">TSourceDSoundUserState</a> old = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a>;
+00445
+00446 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> = <a class="code" href="namespaceNLSOUND.html#a85a31">NL_DSOUND_PAUSED</a>;
+00447 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] PAUZ: PAUSED"</font>, <font class="keyword">this</font>));
+00448
+00449 <font class="comment">//nldebug ("NLOUND: pause %p", this);</font>
+00450
+00451 <font class="keywordflow">if</font> (old == <a class="code" href="namespaceNLSOUND.html#a85a30">NL_DSOUND_PLAYING</a>)
+00452 {
+00453 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c8">fadeOut</a>();
+00454 }
+00455
+00456 LeaveCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00457 }
+00458
+00459 <font class="comment">// ******************************************************************</font>
+00460
+<a name="l00461"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_5">00461</a> <font class="keywordtype">bool</font> CSourceDSound::isPlaying()<font class="keyword"> const</font>
+00462 <font class="keyword"></font>{
+00463 <font class="keywordflow">return</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> == <a class="code" href="namespaceNLSOUND.html#a85a30">NL_DSOUND_PLAYING</a>);
+00464 }
+00465
+00466
+00467 <font class="comment">// ******************************************************************</font>
+00468
+<a name="l00469"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_7">00469</a> <font class="keywordtype">bool</font> CSourceDSound::isPaused()<font class="keyword"> const</font>
+00470 <font class="keyword"></font>{
+00471 <font class="keywordflow">return</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> == <a class="code" href="namespaceNLSOUND.html#a85a31">NL_DSOUND_PAUSED</a>);
+00472 }
+00473
+00474
+00475 <font class="comment">// ******************************************************************</font>
+00476
+<a name="l00477"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_6">00477</a> <font class="keywordtype">bool</font> CSourceDSound::isStopped()<font class="keyword"> const</font>
+00478 <font class="keyword"></font>{
+00479 <font class="keywordflow">return</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> == <a class="code" href="namespaceNLSOUND.html#a85a32">NL_DSOUND_STOPPED</a>);
+00480 }
+00481
+00482
+00483 <font class="comment">// ******************************************************************</font>
+00484
+<a name="l00485"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c10">00485</a> <font class="keywordtype">bool</font> CSourceDSound::needsUpdate()
+00486 {
+00487 DWORD playPos, writePos;
+00488 uint32 space;
+00489
+00490 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> == 0)
+00491 {
+00492 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00493 }
+00494
+00495 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;GetCurrentPosition(&amp;playPos, &amp;writePos);
+00496
+00497
+00498 <font class="keywordflow">if</font> (playPos == <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>)
+00499 {
+00500 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00501 }
+00502 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (playPos &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>)
+00503 {
+00504 space = playPos - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>;
+00505 }
+00506 <font class="keywordflow">else</font>
+00507 {
+00508 space = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a> + playPos - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>;
+00509 }
+00510
+00511 <font class="comment">// Don't bother if the number of samples is smaller than the copy size.</font>
+00512 <font class="keywordflow">return</font> (space &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">_UpdateCopySize</a>);
+00513 }
+00514
+00515
+00516
+00517 <font class="comment">// ******************************************************************</font>
+00518
+<a name="l00519"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_8">00519</a> <font class="keywordtype">void</font> CSourceDSound::update()
+00520 {
+00521 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_9">update2</a>();
+00522 }
+00523
+00524 <font class="comment">// ******************************************************************</font>
+00525
+<a name="l00526"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z969_9">00526</a> <font class="keywordtype">bool</font> CSourceDSound::update2()
+00527 {
+00528 <font class="keywordtype">bool</font> <a class="code" href="driver__opengl__extension__def_8h.html#a400">res</a> = <font class="keyword">false</font>;
+00529
+00530
+00531
+00532 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(start);
+00533
+00534 <font class="comment">//</font>
+00535 <font class="comment">// Enter critical region</font>
+00536 <font class="comment">//</font>
+00537 EnterCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00538
+00539
+00540 <font class="keywordflow">switch</font> (_SecondaryBufferState)
+00541 {
+00542
+00543
+00544 <font class="keywordflow">case</font> <a class="code" href="namespaceNLSOUND.html#a84a29">NL_DSOUND_SILENCED</a>:
+00545 {
+00546 <font class="comment">// Just pretend were writing silence by advancing the next </font>
+00547 <font class="comment">// write position.</font>
+00548 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> += <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">_UpdateCopySize</a>;
+00549 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>)
+00550 {
+00551 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+00552 }
+00553 }
+00554 <font class="keywordflow">break</font>;
+00555
+00556
+00557 <font class="keywordflow">case</font> <a class="code" href="namespaceNLSOUND.html#a84a27">NL_DSOUND_FILLING</a>:
+00558 <a class="code" href="driver__opengl__extension__def_8h.html#a400">res</a> = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c5">fill</a>();
+00559 <font class="keywordflow">break</font>;
+00560
+00561
+00562 <font class="keywordflow">case</font> <a class="code" href="namespaceNLSOUND.html#a84a28">NL_DSOUND_SILENCING</a>:
+00563 <a class="code" href="driver__opengl__extension__def_8h.html#a400">res</a> = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c6">silence</a>();
+00564 <font class="keywordflow">break</font>;
+00565
+00566 }
+00567
+00568
+00569 <font class="comment">//</font>
+00570 <font class="comment">// Leave critical region</font>
+00571 <font class="comment">//</font>
+00572 LeaveCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+00573
+00574
+00575 <font class="preprocessor">#if NLSOUND_PROFILE</font>
+00576 <font class="preprocessor"></font> <font class="keywordtype">double</font> dt = CTime::ticksToSecond(CTime::getPerformanceTime() - start);;
+00577 _TotalUpdateTime += dt;
+00578 _MaxUpdateTime = (dt &gt; _MaxUpdateTime) ? dt : _MaxUpdateTime;
+00579 _MinUpdateTime = (dt &lt; _MinUpdateTime) ? dt : _MinUpdateTime;
+00580 _UpdateCount++;
+00581 <font class="preprocessor">#endif</font>
+00582 <font class="preprocessor"></font>
+00583 <font class="keywordflow">return</font> <a class="code" href="driver__opengl__extension__def_8h.html#a400">res</a>;
+00584 }
+00585
+00586
+00587
+00588 <font class="comment">// ******************************************************************</font>
+00589
+<a name="l00590"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_0">00590</a> <font class="keywordtype">void</font> CSourceDSound::setPos( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; pos, <font class="keywordtype">bool</font> deferred )
+00591 {
+00592 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o20">_Pos</a> = pos;
+00593 <font class="comment">// Coordinate system: conversion from NeL to OpenAL/GL:</font>
+00594 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != NULL)
+00595 {
+00596 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;SetPosition(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>, deferred ? DS3D_DEFERRED : DS3D_IMMEDIATE) != DS_OK)
+00597 {
+00598 <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"SetPosition failed"</font>);
+00599 }
+00600 <font class="keywordflow">else</font>
+00601 {
+00602 <font class="comment">//nlwarning ("%p set source NEL(p:%.2f/%.2f/%.2f) DS(p:%.2f/%.2f/%.2f)", this, pos.x, pos.y, pos.z, pos.x, pos.z, pos.y);</font>
+00603 }
+00604 }
+00605 }
+00606
+00607
+00608 <font class="comment">// ******************************************************************</font>
+00609
+<a name="l00610"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_1">00610</a> <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &amp;CSourceDSound::getPos()<font class="keyword"> const</font>
+00611 <font class="keyword"></font>{
+00612 <font class="keywordflow">return</font> <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o20">_Pos</a>;
+00613 <font class="comment">// Coordinate system: conversion from NeL to OpenAL/GL:</font>
+00614 <font class="comment">/* if (_3DBuffer != NULL)</font>
+00615 <font class="comment"> {</font>
+00616 <font class="comment"> D3DVECTOR v;</font>
+00617 <font class="comment"> HRESULT hr = _3DBuffer-&gt;GetPosition(&amp;v);</font>
+00618 <font class="comment"></font>
+00619 <font class="comment"> if (hr != DS_OK)</font>
+00620 <font class="comment"> {</font>
+00621 <font class="comment"> nlwarning ("GetPosition failed");</font>
+00622 <font class="comment"> pos.set(0, 0, 0); </font>
+00623 <font class="comment"> }</font>
+00624 <font class="comment"> else</font>
+00625 <font class="comment"> {</font>
+00626 <font class="comment"> pos.set(v.x, v.z, v.y);</font>
+00627 <font class="comment"> }</font>
+00628 <font class="comment"> }</font>
+00629 <font class="comment"> else</font>
+00630 <font class="comment"> {</font>
+00631 <font class="comment"> pos.set(0, 0, 0); </font>
+00632 <font class="comment"> }</font>
+00633 <font class="comment">*/</font>
+00634 }
+00635
+00636
+00637 <font class="comment">// ******************************************************************</font>
+00638
+<a name="l00639"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_2">00639</a> <font class="keywordtype">void</font> CSourceDSound::setVelocity( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; vel, <font class="keywordtype">bool</font> deferred )
+00640 {
+00641 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != NULL)
+00642 {
+00643 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;SetVelocity(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>, deferred ? DS3D_DEFERRED : DS3D_IMMEDIATE) != DS_OK)
+00644 {
+00645 <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"SetVelocity failed"</font>);
+00646 }
+00647 }
+00648 }
+00649
+00650
+00651 <font class="comment">// ******************************************************************</font>
+00652
+<a name="l00653"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_3">00653</a> <font class="keywordtype">void</font> CSourceDSound::getVelocity( <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; vel )<font class="keyword"> const</font>
+00654 <font class="keyword"></font>{
+00655 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != NULL)
+00656 {
+00657 D3DVECTOR <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>;
+00658
+00659 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;GetVelocity(&amp;<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) != DS_OK)
+00660 {
+00661 <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"GetVelocity failed"</font>);
+00662 vel.<a class="code" href="classNLMISC_1_1CVector.html#z332_0">set</a>(0, 0, 0);
+00663 }
+00664 <font class="keywordflow">else</font>
+00665 {
+00666 vel.<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>.x, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.z, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.y);
+00667 }
+00668 }
+00669 <font class="keywordflow">else</font>
+00670 {
+00671 vel.<a class="code" href="classNLMISC_1_1CVector.html#z332_0">set</a>(0, 0, 0);
+00672 }
+00673 }
+00674
+00675
+00676 <font class="comment">// ******************************************************************</font>
+00677
+<a name="l00678"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_4">00678</a> <font class="keywordtype">void</font> CSourceDSound::setDirection( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; dir )
+00679 {
+00680 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != 0)
+00681 {
+00682 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;SetConeOrientation(dir.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, dir.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>, dir.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, DS3D_DEFERRED) != DS_OK)
+00683 {
+00684 <a class="code" href="debug_8h.html#a2">nlwarning</a> (<font class="stringliteral">"SetConeOrientation failed (x=%.2f, y=%.2f, z=%.2f)"</font>, dir.<a class="code" href="classNLMISC_1_1CVector.html#m0">x</a>, dir.<a class="code" href="classNLMISC_1_1CVector.html#m1">y</a>, dir.<a class="code" href="classNLMISC_1_1CVector.html#m2">z</a>);
+00685 }
+00686 <font class="keywordflow">else</font>
+00687 {
+00688 <font class="comment">//nlwarning ("NLSOUND: %p set source direction NEL(p:%.2f/%.2f/%.2f) DS(p:%.2f/%.2f/%.2f)", this, dir.x, dir.y, dir.z, dir.x, dir.z, dir.y);</font>
+00689 }
+00690 }
+00691 }
+00692
+00693
+00694 <font class="comment">// ******************************************************************</font>
+00695
+<a name="l00696"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_5">00696</a> <font class="keywordtype">void</font> CSourceDSound::getDirection( <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; dir )<font class="keyword"> const</font>
+00697 <font class="keyword"></font>{
+00698 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != NULL)
+00699 {
+00700 D3DVECTOR <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>;
+00701
+00702 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;GetConeOrientation(&amp;<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) != DS_OK)
+00703 {
+00704 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"GetConeOrientation failed"</font>);
+00705 dir.<a class="code" href="classNLMISC_1_1CVector.html#z332_0">set</a>(0, 0, 1);
+00706 }
+00707 <font class="keywordflow">else</font>
+00708 {
+00709 dir.<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>.x, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.z, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>.y);
+00710 }
+00711 }
+00712 <font class="keywordflow">else</font>
+00713 {
+00714 dir.<a class="code" href="classNLMISC_1_1CVector.html#z332_0">set</a>(0, 0, 1);
+00715 }
+00716 }
+00717
+00718
+00719 <font class="comment">// ******************************************************************</font>
+00720
+<a name="l00721"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_6">00721</a> <font class="keywordtype">void</font> CSourceDSound::setGain( <font class="keywordtype">float</font> gain )
+00722 {
+00723 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(gain, 0.00001f, 1.0f);
+00724 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o18">_Gain</a> = gain;
+00725
+00726 <font class="comment">/* convert from linear amplitude to hundredths of decibels */</font>
+00727 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o17">_Volume</a> = (uint32)(100.0 * 20.0 * log10(gain));
+00728 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o17">_Volume</a>, DSBVOLUME_MIN, DSBVOLUME_MAX);
+00729
+00730 <font class="comment">//nlwarning ("set gain %f vol %d", gain, _Volume);</font>
+00731
+00732 <font class="comment">/*</font>
+00733 <font class="comment"> if ((_SecondaryBuffer != 0) &amp;&amp; (_SecondaryBuffer-&gt;SetVolume(_Volume) != DS_OK))</font>
+00734 <font class="comment"> {</font>
+00735 <font class="comment"> nlwarning("SetVolume failed");</font>
+00736 <font class="comment"> }</font>
+00737 <font class="comment"> */</font>
+00738 }
+00739
+00740
+00741 <font class="comment">/*</font>
+00742 <font class="comment"> * Get the gain</font>
+00743 <font class="comment"> */</font>
+<a name="l00744"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_7">00744</a> <font class="keywordtype">float</font> CSourceDSound::getGain()<font class="keyword"> const</font>
+00745 <font class="keyword"></font>{
+00746 <font class="keywordflow">return</font> <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o18">_Gain</a>;
+00747 }
+00748
+00749
+00750 <font class="comment">// ******************************************************************</font>
+00751
+<a name="l00752"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_8">00752</a> <font class="keywordtype">void</font> CSourceDSound::setPitch( <font class="keywordtype">float</font> coeff )
+00753 {
+00754 <font class="comment">// _Freq = coeff;</font>
+00755
+00756 <font class="keywordflow">if</font> ((<a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> != 0) &amp;&amp; (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> != 0))
+00757 {
+00758 <a class="code" href="namespaceNLSOUND.html#a83">TSampleFormat</a> <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>;
+00759 uint freq;
+00760
+00761 <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a>-&gt;getFormat(<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>, freq);
+00762
+00763 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o15">_SampleRate</a> = (uint32) (coeff * (float) freq);
+00764
+00765 <font class="comment">//nlwarning("Freq=%d", newfreq);</font>
+00766
+00767 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;SetFrequency(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o15">_SampleRate</a>) != DS_OK)
+00768 {
+00769 <font class="comment">// nlwarning("SetFrequency failed (buffer freq=%d, NeL freq=%.5f, DSound freq=%d)", freq, coeff, newfreq);</font>
+00770 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"SetFrequency"</font>);
+00771 }
+00772 }
+00773 }
+00774
+00775
+00776 <font class="comment">// ******************************************************************</font>
+00777
+<a name="l00778"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_9">00778</a> <font class="keywordtype">float</font> CSourceDSound::getPitch()<font class="keyword"> const</font>
+00779 <font class="keyword"></font>{
+00780 <font class="keywordflow">if</font> ((<a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> != 0) &amp;&amp; (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> != 0))
+00781 {
+00782 <a class="code" href="namespaceNLSOUND.html#a83">TSampleFormat</a> <a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>;
+00783 uint freq0;
+00784 DWORD freq;
+00785
+00786 <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a>-&gt;getFormat(<a class="code" href="driver__opengl__extension__def_8h.html#a398">format</a>, freq0);
+00787
+00788 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;GetFrequency(&amp;freq) != DS_OK)
+00789 {
+00790 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"GetFrequency failed"</font>);
+00791 <font class="keywordflow">return</font> 1.0;
+00792 }
+00793
+00794 <font class="keywordflow">return</font> ((float) freq / (float) freq0);
+00795 }
+00796
+00797 <font class="keywordflow">return</font> 1.0;
+00798 }
+00799
+00800
+00801 <font class="comment">// ******************************************************************</font>
+00802
+<a name="l00803"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_10">00803</a> <font class="keywordtype">void</font> CSourceDSound::setSourceRelativeMode( <font class="keywordtype">bool</font> mode )
+00804 {
+00805 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != 0)
+00806 {
+00807 HRESULT hr;
+00808
+00809 <font class="keywordflow">if</font> (mode)
+00810 {
+00811 hr = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;SetMode(DS3DMODE_HEADRELATIVE, DS3D_IMMEDIATE);
+00812 }
+00813 <font class="keywordflow">else</font>
+00814 {
+00815 hr = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;SetMode(DS3DMODE_NORMAL, DS3D_IMMEDIATE);
+00816 }
+00817
+00818 <font class="keywordflow">if</font> (hr != DS_OK)
+00819 {
+00820 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"SetMode failed"</font>);
+00821 }
+00822 }
+00823 <font class="keywordflow">else</font>
+00824 {
+00825 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Requested setSourceRelativeMode on a non-3D source"</font>);
+00826 }
+00827 }
+00828
+00829
+00830 <font class="comment">// ******************************************************************</font>
+00831
+<a name="l00832"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_11">00832</a> <font class="keywordtype">bool</font> CSourceDSound::getSourceRelativeMode()<font class="keyword"> const</font>
+00833 <font class="keyword"></font>{
+00834 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != 0)
+00835 {
+00836 DWORD mode;
+00837
+00838 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;GetMode(&amp;mode) != DS_OK)
+00839 {
+00840 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"GetMode failed"</font>);
+00841 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00842 }
+00843
+00844 <font class="keywordflow">return</font> (mode == DS3DMODE_HEADRELATIVE);
+00845 }
+00846 <font class="keywordflow">else</font>
+00847 {
+00848 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Requested setSourceRelativeMode on a non-3D source"</font>);
+00849 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00850 }
+00851 }
+00852
+00853
+00854 <font class="comment">// ******************************************************************</font>
+00855
+<a name="l00856"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_12">00856</a> <font class="keywordtype">void</font> CSourceDSound::setMinMaxDistances( <font class="keywordtype">float</font> mindist, <font class="keywordtype">float</font> maxdist, <font class="keywordtype">bool</font> deferred )
+00857 {
+00858 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != 0)
+00859 {
+00860 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;SetMinDistance(mindist, deferred ? DS3D_DEFERRED : DS3D_IMMEDIATE) != DS_OK)
+00861 {
+00862 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"SetMinDistance (%f) failed"</font>, mindist);
+00863 }
+00864 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;SetMaxDistance(maxdist, deferred ? DS3D_DEFERRED : DS3D_IMMEDIATE) != DS_OK)
+00865 {
+00866 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"SetMaxDistance (%f) failed"</font>, maxdist);
+00867 }
+00868 }
+00869 <font class="keywordflow">else</font>
+00870 {
+00871 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Requested setMinMaxDistances on a non-3D source"</font>);
+00872 }
+00873 }
+00874
+00875
+00876 <font class="comment">// ******************************************************************</font>
+00877
+<a name="l00878"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_13">00878</a> <font class="keywordtype">void</font> CSourceDSound::getMinMaxDistances( <font class="keywordtype">float</font>&amp; mindist, <font class="keywordtype">float</font>&amp; maxdist )<font class="keyword"> const</font>
+00879 <font class="keyword"></font>{
+00880 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != 0)
+00881 {
+00882 D3DVALUE <a class="code" href="bit__set_8cpp.html#a0">min</a>, max;
+00883
+00884 <font class="keywordflow">if</font> ((<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;GetMinDistance(&amp;<a class="code" href="bit__set_8cpp.html#a0">min</a>) != DS_OK)
+00885 || (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;GetMaxDistance(&amp;max) != DS_OK))
+00886 {
+00887 mindist = 0.0f;
+00888 maxdist = 0.0f;
+00889 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"GetMinDistance or GetMaxDistance failed"</font>);
+00890 }
+00891 <font class="keywordflow">else</font>
+00892 {
+00893 mindist = <a class="code" href="bit__set_8cpp.html#a0">min</a>;
+00894 maxdist = max;
+00895 }
+00896 }
+00897 <font class="keywordflow">else</font>
+00898 {
+00899 mindist = 0.0f;
+00900 maxdist = 0.0f;
+00901 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Requested getMinMaxDistances on a non-3D source"</font>);
+00902 }
+00903 }
+00904
+00905 <font class="comment">// ******************************************************************</font>
+00906
+<a name="l00907"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#a6">00907</a> <font class="keywordtype">void</font> CSourceDSound::updateVolume( <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>&amp; listener )
+00908 {
+00909 CVector pos = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_1">getPos</a>();
+00910 pos -= listener;
+00911
+00912 <font class="keywordtype">float</font> sqrdist = pos.<a class="code" href="classNLMISC_1_1CVector.html#z331_3">sqrnorm</a>();
+00913 <font class="keywordtype">float</font> <a class="code" href="bit__set_8cpp.html#a0">min</a>, max;
+00914
+00915 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_13">getMinMaxDistances</a>(<a class="code" href="bit__set_8cpp.html#a0">min</a>, max);
+00916
+00917 <font class="keywordflow">if</font> (sqrdist &lt; <a class="code" href="bit__set_8cpp.html#a0">min</a> * <a class="code" href="bit__set_8cpp.html#a0">min</a>)
+00918 {
+00919 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;SetVolume(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o17">_Volume</a>);
+00920 <font class="comment">//nlwarning("VOLUME = %ddB, rolloff = %0.2f", _Volume/100, CListenerDSound::instance()-&gt;getRolloffFactor());</font>
+00921 }
+00922 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (sqrdist &gt; max * max)
+00923 {
+00924 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;SetVolume(DSBVOLUME_MIN);
+00925 <font class="comment">//nlwarning("VOLUME = %ddB, rolloff = %0.2f", DSBVOLUME_MIN/100, CListenerDSound::instance()-&gt;getRolloffFactor());</font>
+00926 }
+00927 <font class="keywordflow">else</font>
+00928 {
+00929 sint32 db = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o17">_Volume</a>;
+00930
+00931 <font class="keywordtype">double</font> dist = (double) sqrt(sqrdist);
+00932
+00933 <font class="comment">// linearly descending volume on a dB scale</font>
+00934 <font class="keywordtype">double</font> db1 = DSBVOLUME_MIN * (dist - <a class="code" href="bit__set_8cpp.html#a0">min</a>) / (max - <a class="code" href="bit__set_8cpp.html#a0">min</a>);
+00935
+00936 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o19">_Alpha</a> == 0.0) {
+00937 db += (sint32) db1;
+00938
+00939 } <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o19">_Alpha</a> &gt; 0.0) {
+00940 <font class="keywordtype">double</font> amp2 = 0.0001 + 0.9999 * (max - dist) / (max - <a class="code" href="bit__set_8cpp.html#a0">min</a>); <font class="comment">// linear amp between 0.00001 and 1.0</font>
+00941 <font class="keywordtype">double</font> db2 = 2000.0 * log10(amp2); <font class="comment">// covert to 1/100th decibels</font>
+00942 db += (sint32) ((1.0 - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o19">_Alpha</a>) * db1 + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o19">_Alpha</a> * db2);
+00943
+00944 } <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o19">_Alpha</a> &lt; 0.0) {
+00945 <font class="keywordtype">double</font> amp3 = <a class="code" href="bit__set_8cpp.html#a0">min</a> / dist; <font class="comment">// linear amplitude is 1/distance</font>
+00946 <font class="keywordtype">double</font> db3 = 2000.0 * log10(amp3); <font class="comment">// covert to 1/100th decibels</font>
+00947 db += (sint32) ((1.0 + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o19">_Alpha</a>) * db1 - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o19">_Alpha</a> * db3);
+00948 }
+00949
+00950 <a class="code" href="namespaceNLMISC.html#a215">clamp</a>(db, DSBVOLUME_MIN, DSBVOLUME_MAX);
+00951
+00952 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;SetVolume(db);
+00953
+00954 <font class="comment">/* LONG tmp;</font>
+00955 <font class="comment"> _SecondaryBuffer-&gt;GetVolume(&amp;tmp);</font>
+00956 <font class="comment">*/</font>
+00957
+00958 <font class="comment">//nlwarning("VOLUME = %d dB, rolloff = %0.2f", db/100, CListenerDSound::instance()-&gt;getRolloffFactor());</font>
+00959 }
+00960
+00961 }
+00962
+00963 <font class="comment">// ******************************************************************</font>
+00964
+<a name="l00965"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_14">00965</a> <font class="keywordtype">void</font> CSourceDSound::setCone( <font class="keywordtype">float</font> innerAngle, <font class="keywordtype">float</font> outerAngle, <font class="keywordtype">float</font> outerGain )
+00966 {
+00967 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != 0)
+00968 {
+00969 <font class="comment">// Set the cone angles</font>
+00970
+00971 <font class="comment">// Convert from radians to degrees</font>
+00972 DWORD inner = (DWORD)(180.0 * innerAngle / <a class="code" href="namespaceNLMISC.html#a7">Pi</a>);
+00973 DWORD outer = (DWORD)(180.0 * outerAngle / <a class="code" href="namespaceNLMISC.html#a7">Pi</a>);
+00974
+00975
+00976 <font class="comment">// Sanity check: wrap the angles in the [0,360] interval</font>
+00977 <font class="keywordflow">if</font> (outer &lt; inner)
+00978 {
+00979 outer = inner;
+00980 }
+00981
+00982 <font class="keywordflow">while</font> (inner &lt; DS3D_MINCONEANGLE)
+00983 {
+00984 inner += 360;
+00985 }
+00986
+00987 <font class="keywordflow">while</font> (inner &gt; DS3D_MAXCONEANGLE)
+00988 {
+00989 inner -= 360;
+00990 }
+00991
+00992 <font class="keywordflow">while</font> (outer &lt; DS3D_MINCONEANGLE)
+00993 {
+00994 outer += 360;
+00995 }
+00996
+00997 <font class="keywordflow">while</font> (outer &gt; DS3D_MAXCONEANGLE)
+00998 {
+00999 outer -= 360;
+01000 }
+01001
+01002 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;SetConeAngles(inner, outer, DS3D_DEFERRED) != DS_OK)
+01003 {
+01004 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"SetConeAngles failed"</font>);
+01005 }
+01006
+01007 <font class="comment">// Set the outside volume</font>
+01008 <font class="keywordflow">if</font> (outerGain &lt; 0.00001f)
+01009 {
+01010 outerGain = 0.00001f;
+01011 }
+01012
+01013 <font class="comment">// convert from linear amplitude to hundredths of decibels </font>
+01014 LONG volume = (LONG)(100.0 * 20.0 * log10(outerGain));
+01015
+01016 <font class="keywordflow">if</font> (volume &lt; DSBVOLUME_MIN)
+01017 {
+01018 volume = DSBVOLUME_MIN;
+01019 }
+01020 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (volume &gt; DSBVOLUME_MAX)
+01021 {
+01022 volume = DSBVOLUME_MAX;
+01023 }
+01024
+01025 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;SetConeOutsideVolume(volume, DS3D_DEFERRED) != DS_OK)
+01026 {
+01027 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"SetConeOutsideVolume failed"</font>);
+01028 }
+01029
+01030 }
+01031 <font class="keywordflow">else</font>
+01032 {
+01033 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Requested setCone on a non-3D source"</font>);
+01034 }
+01035 }
+01036
+01037 <font class="comment">// ******************************************************************</font>
+01038
+<a name="l01039"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_15">01039</a> <font class="keywordtype">void</font> CSourceDSound::getCone( <font class="keywordtype">float</font>&amp; innerAngle, <font class="keywordtype">float</font>&amp; outerAngle, <font class="keywordtype">float</font>&amp; outerGain )<font class="keyword"> const</font>
+01040 <font class="keyword"></font>{
+01041 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a> != 0)
+01042 {
+01043 DWORD inner, outer;
+01044 LONG volume;
+01045
+01046 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;GetConeAngles(&amp;inner, &amp;outer) != DS_OK)
+01047 {
+01048 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"GetConeAngles failed"</font>);
+01049 innerAngle = outerAngle = (float)(2.0 * <a class="code" href="namespaceNLMISC.html#a7">Pi</a>);
+01050 }
+01051 <font class="keywordflow">else</font>
+01052 {
+01053 innerAngle = (float)(<a class="code" href="namespaceNLMISC.html#a7">Pi</a> * inner / 180.0);
+01054 outerAngle = (float)(<a class="code" href="namespaceNLMISC.html#a7">Pi</a> * outer / 180.0);
+01055 }
+01056
+01057 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o7">_3DBuffer</a>-&gt;GetConeOutsideVolume(&amp;volume) != DS_OK)
+01058 {
+01059 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"GetConeOutsideVolume failed"</font>);
+01060 outerGain = 0.0f;
+01061 }
+01062 <font class="keywordflow">else</font>
+01063 {
+01064 outerGain = (float) pow(10, (<font class="keywordtype">double</font>) volume / 20.0 / 100.0);
+01065 }
+01066 }
+01067 <font class="keywordflow">else</font>
+01068 {
+01069 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Requested getCone on a non-3D source"</font>);
+01070 }
+01071 }
+01072
+01073 <font class="comment">// ******************************************************************</font>
+01074
+<a name="l01075"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_16">01075</a> <font class="keywordtype">void</font> CSourceDSound::setEAXProperty( uint prop, <font class="keywordtype">void</font> *<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, uint valuesize )
+01076 {
+01077 <font class="preprocessor">#ifdef EAX_AVAILABLE</font>
+01078 <font class="preprocessor"></font> <font class="keywordflow">if</font> ( EAXSetProp != NULL )
+01079 {
+01080 EAXSetProp( &amp;DSPROPSETID_EAX_SourceProperties, prop, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o0">_SourceName</a>, <a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, valuesize );
+01081 }
+01082 <font class="preprocessor">#endif</font>
+01083 <font class="preprocessor"></font>}
+01084
+01085
+01086 <font class="comment">// ******************************************************************</font>
+01087
+<a name="l01088"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#a4">01088</a> IBuffer *CSourceDSound::getBuffer()
+01089 {
+01090 <font class="keywordflow">return</font> <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a>;
+01091 }
+01092
+01093
+01094 <font class="comment">// ******************************************************************</font>
+01095
+<a name="l01096"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c1">01096</a> <font class="keywordtype">bool</font> CSourceDSound::lock(uint32 writePos, uint32 size, uint8* &amp;ptr1, DWORD &amp;bytes1, uint8* &amp;ptr2, DWORD &amp;bytes2)
+01097 {
+01098 HRESULT hr = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Lock(writePos, size, (LPVOID*) &amp;ptr1, &amp;bytes1, (LPVOID*) &amp;ptr2, &amp;bytes2, 0);
+01099
+01100 <font class="keywordflow">if</font> (hr == DSERR_BUFFERLOST)
+01101 {
+01102 <font class="comment">// If the buffer got lost somehow, try to restore it.</font>
+01103 <font class="keywordflow">if</font> (FAILED(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Restore()))
+01104 {
+01105 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Lock failed (1)"</font>);
+01106 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01107 }
+01108 <font class="keywordflow">if</font> (FAILED(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Lock(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">_UpdateCopySize</a>, (LPVOID*) &amp;ptr1, &amp;bytes1, (LPVOID*) &amp;ptr2, &amp;bytes2, 0)))
+01109 {
+01110 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Lock failed (2)"</font>);
+01111 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01112 }
+01113 }
+01114 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (hr != DS_OK)
+01115 {
+01116 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Lock failed (3)"</font>);
+01117 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01118 }
+01119
+01120 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+01121 }
+01122
+01123 <font class="comment">// ******************************************************************</font>
+01124
+<a name="l01125"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c2">01125</a> <font class="keywordtype">bool</font> CSourceDSound::unlock(uint8* ptr1, DWORD bytes1, uint8* ptr2, DWORD bytes2)
+01126 {
+01127 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Unlock(ptr1, bytes1, ptr2, bytes2);
+01128 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+01129 }
+01130
+01131
+01132
+01133 <font class="comment">/***************************************************************************</font>
+01134 <font class="comment"> </font>
+01135 <font class="comment"></font>
+01136 <font class="comment"> Buffer operations</font>
+01137 <font class="comment"></font>
+01138 <font class="comment"> There are five buffer operation: fill, silence, fadeOut, crossFade</font>
+01139 <font class="comment"> and fadeIn. fill and silence are called by the update function. The</font>
+01140 <font class="comment"> others are called by the user state functions (play, stop, pause).</font>
+01141 <font class="comment"></font>
+01142 <font class="comment"></font>
+01143 <font class="comment"> NW P W</font>
+01144 <font class="comment"> +--------+------+---+-----------------------+</font>
+01145 <font class="comment"> |........| |xxx|.......................|</font>
+01146 <font class="comment"> +--------+------+---+-----------------------+</font>
+01147 <font class="comment"></font>
+01148 <font class="comment"> The source maintains the next write position (_NextWritePos, NW in figure</font>
+01149 <font class="comment"> above). That is the position at which new samples or silemce is written.</font>
+01150 <font class="comment"> DirectSound maintaines a play cursor and a write cursor (P and W in figure).</font>
+01151 <font class="comment"> The data between P and W is scheduled for playing and cannot be touched.</font>
+01152 <font class="comment"> The data between W and NW are unplayed sample data that the source copied</font>
+01153 <font class="comment"> into the DirectSound buffer.</font>
+01154 <font class="comment"></font>
+01155 <font class="comment"> The update functions (fill, silence) refresh the buffer with new samples</font>
+01156 <font class="comment"> or silence. That insert the sample data at the next write position NW. This </font>
+01157 <font class="comment"> write position is maintained as closely behind the DirectSound play cursor </font>
+01158 <font class="comment"> as possible to keep the buffer filled with data.</font>
+01159 <font class="comment"></font>
+01160 <font class="comment"> The user functions (the fades) modify the sample data that is right after</font>
+01161 <font class="comment"> the write cursor W maintained by DirectSound. The data has to be written </font>
+01162 <font class="comment"> after W to hear the changes as soon as possible. When a fade is done, the</font>
+01163 <font class="comment"> date already written in the buffer has to be overwritten. The function</font>
+01164 <font class="comment"> getFadeOutSize() helps to found out how many samples are writen between</font>
+01165 <font class="comment"> W and NW and to what section of the original audio data they correspond.</font>
+01166 <font class="comment"></font>
+01167 <font class="comment"> All the buffer functions below have the same pattern:</font>
+01168 <font class="comment"></font>
+01169 <font class="comment"> - get current play and write cursors (P and W)</font>
+01170 <font class="comment"> - lock the buffer</font>
+01171 <font class="comment"> - copy samples</font>
+01172 <font class="comment"> - unlock buffer</font>
+01173 <font class="comment"> - update state variables</font>
+01174 <font class="comment"></font>
+01175 <font class="comment"> The differences between the functions are due to different operation</font>
+01176 <font class="comment"> (fades), position and size of the buffer to lock, handling of silence</font>
+01177 <font class="comment"> and looping.</font>
+01178 <font class="comment"></font>
+01179 <font class="comment"> Enjoy!</font>
+01180 <font class="comment"></font>
+01181 <font class="comment"> PH</font>
+01182 <font class="comment"></font>
+01183 <font class="comment"></font>
+01184 <font class="comment">************************************************************************/</font>
+01185
+<a name="l01186"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c5">01186</a> <font class="keywordtype">bool</font> CSourceDSound::fill()
+01187 {
+01188 <font class="keywordtype">bool</font> <a class="code" href="driver__opengl__extension__def_8h.html#a400">res</a> = <font class="keyword">false</font>;
+01189 uint8 *ptr1, *ptr2;
+01190 DWORD bytes1, bytes2;
+01191 DWORD playPos, writePos;
+01192 uint32 space;
+01193
+01194
+01195 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> == NULL)
+01196 {
+01197 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a28">NL_DSOUND_SILENCING</a>;
+01198 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> = <a class="code" href="namespaceNLSOUND.html#a85a32">NL_DSOUND_STOPPED</a>;
+01199 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01200 }
+01201
+01202 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> == 0)
+01203 {
+01204 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01205 }
+01206
+01207
+01208 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startPos);
+01209
+01210
+01211 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;GetCurrentPosition(&amp;playPos, &amp;writePos);
+01212
+01213 <font class="keywordflow">if</font> (playPos == <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>)
+01214 {
+01215 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01216 }
+01217 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (playPos &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>)
+01218 {
+01219 space = playPos - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>;
+01220 }
+01221 <font class="keywordflow">else</font>
+01222 {
+01223 space = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a> + playPos - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>;
+01224 }
+01225
+01226 <font class="comment">// Don't bother if the number of samples that can be written is too small.</font>
+01227 <font class="keywordflow">if</font> (space &lt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">_UpdateCopySize</a>)
+01228 {
+01229 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01230 }
+01231
+01232
+01233 uint8* <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> = ((CBufferDSound*) <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a>)-&gt;getData();
+01234 uint32 available = (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> &lt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a>) ? <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> : 0;
+01235
+01236
+01237 <font class="comment">// The number of samples bytes that will be copied. If bytes is 0</font>
+01238 <font class="comment">// than write silence to the buffer.</font>
+01239 uint32 bytes = <a class="code" href="source__dsound_8cpp.html#a2">NLSOUND_MIN</a>(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">_UpdateCopySize</a>, available);
+01240 uint32 clear = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">_UpdateCopySize</a> - available;
+01241
+01242
+01243 <font class="comment">// Lock the buffer</font>
+01244
+01245 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startLock);
+01246
+01247
+01248 <font class="keywordflow">if</font> (!<a class="code" href="classNLSOUND_1_1CSourceDSound.html#c1">lock</a>(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">_UpdateCopySize</a>, ptr1, bytes1, ptr2, bytes2))
+01249 {
+01250 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01251 }
+01252
+01253
+01254 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startCopy);
+01255
+01256 <font class="comment">// Start copying the samples</font>
+01257
+01258 <font class="keywordflow">if</font> (bytes1 &lt;= bytes) {
+01259
+01260 CFastMem::memcpy(ptr1, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, bytes1);
+01261 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += bytes1;
+01262 bytes -= bytes1;
+01263
+01264 <font class="keywordflow">if</font> (ptr2)
+01265 {
+01266 <font class="keywordflow">if</font> (bytes &gt; 0)
+01267 {
+01268 CFastMem::memcpy(ptr2, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, bytes);
+01269 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += bytes;
+01270 }
+01271
+01272 <font class="keywordflow">if</font> (bytes &lt; bytes2)
+01273 {
+01274 <font class="keywordflow">if</font> (_Loop)
+01275 {
+01276 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FILL: LOOP"</font>, <font class="keyword">this</font>));
+01277
+01278 CFastMem::memcpy(ptr2 + bytes, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a>, bytes2 - bytes);
+01279 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = bytes2 - bytes;
+01280 }
+01281 <font class="keywordflow">else</font>
+01282 {
+01283 memset(ptr2 + bytes, 0, bytes2 - bytes);
+01284 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> = bytes2 - bytes;
+01285 }
+01286 }
+01287 }
+01288 }
+01289 <font class="keywordflow">else</font>
+01290 {
+01291 <font class="keywordflow">if</font> (bytes &gt; 0)
+01292 {
+01293 CFastMem::memcpy(ptr1, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, bytes);
+01294 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += bytes;
+01295 }
+01296
+01297 <font class="keywordflow">if</font> (_Loop)
+01298 {
+01299 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FILL: LOOP"</font>, <font class="keyword">this</font>));
+01300
+01301 CFastMem::memcpy(ptr1 + bytes, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a>, bytes1 - bytes);
+01302 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = bytes1 - bytes;
+01303
+01304 <font class="keywordflow">if</font> (ptr2)
+01305 {
+01306 CFastMem::memcpy(ptr2, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, bytes2);
+01307 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += bytes2;
+01308 }
+01309
+01310 }
+01311 <font class="keywordflow">else</font>
+01312 {
+01313 memset(ptr1 + bytes, 0, bytes1 - bytes);
+01314 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> = bytes1 - bytes;
+01315
+01316 <font class="keywordflow">if</font> (ptr2)
+01317 {
+01318 memset(ptr2, 0, bytes2);
+01319 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> += bytes2;
+01320 }
+01321 }
+01322
+01323 }
+01324
+01325
+01326
+01327
+01328 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startUnlock);
+01329
+01330 <font class="comment">// Unlock the buffer</font>
+01331 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Unlock(ptr1, bytes1, ptr2, bytes2);
+01332
+01333
+01334 <font class="comment">// Update the state variables</font>
+01335
+01336 <font class="comment">// Check if we've reached the end of the file</font>
+01337 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> == <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a>)
+01338 {
+01339 <font class="keywordflow">if</font> (_Loop)
+01340 {
+01341 <font class="comment">// If we're looping, start all over again</font>
+01342 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FILL: LOOP"</font>, <font class="keyword">this</font>));
+01343 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = 0;
+01344 }
+01345 <font class="keywordflow">else</font>
+01346 {
+01347 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a28">NL_DSOUND_SILENCING</a>;
+01348
+01349 <font class="comment">// Keep track of where tha last sample was written and the position</font>
+01350 <font class="comment">// of the play cursor relative to the end position. if the _EndState</font>
+01351 <font class="comment">// is 0, the play cursor is after the end position, 1 otherwise.</font>
+01352 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a> = writePos + bytes;
+01353 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a> &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>)
+01354 {
+01355 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a> -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+01356 }
+01357
+01358 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a> = (playPos &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>)? <a class="code" href="namespaceNLSOUND.html#a86a33">NL_DSOUND_TAIL1</a> : <a class="code" href="namespaceNLSOUND.html#a86a34">NL_DSOUND_TAIL2</a>;
+01359
+01360 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FILL: SILENCING"</font>, <font class="keyword">this</font>));
+01361 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FILL: ENDSTATE=%d, E=%d, P=%d"</font>, <font class="keyword">this</font>, (<font class="keywordtype">int</font>) <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>, playPos));
+01362 }
+01363 }
+01364
+01365
+01366 <font class="comment">// Update the write pointer</font>
+01367 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> += bytes1 + bytes2;
+01368 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>)
+01369 {
+01370 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+01371 }
+01372
+01373 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FILL: P=%d, W=%d, NW=%d, SZ=%d, BW=%d, S=%d, B=%d"</font>, <font class="keyword">this</font>, playPos, writePos, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a>, bytes1 + bytes2));
+01374
+01375
+01376 <font class="preprocessor">#if NLSOUND_PROFILE</font>
+01377 <font class="preprocessor"></font> _TotalUpdateSize += bytes1 + bytes2;
+01378 _PosTime += CTime::ticksToSecond(startLock - startPos);
+01379 _LockTime += CTime::ticksToSecond(startCopy - startLock);
+01380 _CopyTime += CTime::ticksToSecond(startUnlock - startCopy);
+01381 _UnlockTime += CTime::ticksToSecond(CTime::getPerformanceTime() - startUnlock);
+01382 _CopyCount++;
+01383 <font class="preprocessor">#endif</font>
+01384 <font class="preprocessor"></font>
+01385
+01386 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+01387 }
+01388
+01389
+01390
+01391
+01392 <font class="comment">// ******************************************************************</font>
+01393
+<a name="l01394"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c6">01394</a> <font class="keywordtype">bool</font> CSourceDSound::silence()
+01395 {
+01396 uint8 *ptr1, *ptr2;
+01397 DWORD bytes1, bytes2;
+01398 DWORD playPos, writePos;
+01399 uint32 space;
+01400
+01401 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> == 0)
+01402 {
+01403 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01404 }
+01405
+01406 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startPos);
+01407
+01408 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;GetCurrentPosition(&amp;playPos, &amp;writePos);
+01409
+01410 <font class="keywordflow">if</font> (playPos == <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>)
+01411 {
+01412 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01413 }
+01414 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (playPos &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>)
+01415 {
+01416 space = playPos - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>;
+01417 }
+01418 <font class="keywordflow">else</font>
+01419 {
+01420 space = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a> + playPos - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>;
+01421 }
+01422
+01423 <font class="comment">// Don't bother if the number of samples that can be written is too small.</font>
+01424 <font class="keywordflow">if</font> (space &lt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">_UpdateCopySize</a>)
+01425 {
+01426 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01427 }
+01428
+01429 <font class="comment">// Lock the buffer</font>
+01430
+01431 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startLock);
+01432
+01433 <font class="keywordflow">if</font> (!<a class="code" href="classNLSOUND_1_1CSourceDSound.html#c1">lock</a>(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">_UpdateCopySize</a>, ptr1, bytes1, ptr2, bytes2))
+01434 {
+01435 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+01436 }
+01437
+01438
+01439 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startCopy);
+01440
+01441 <font class="comment">// Silence the buffer</font>
+01442 memset(ptr1, 0, bytes1);
+01443 memset(ptr2, 0, bytes2);
+01444
+01445 <font class="comment">// Unlock the buffer</font>
+01446
+01447 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startUnlock);
+01448
+01449 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Unlock(ptr1, bytes1, ptr2, bytes2);
+01450
+01451
+01452 <font class="comment">// Update the next write position</font>
+01453 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> += bytes1 + bytes2;
+01454 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>)
+01455 {
+01456 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+01457 }
+01458
+01459
+01460 <font class="comment">// Check if all the samples in the buffer are played</font>
+01461 <font class="keywordflow">if</font> ((playPos &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>) &amp;&amp; (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a> == <a class="code" href="namespaceNLSOUND.html#a86a34">NL_DSOUND_TAIL2</a>))
+01462 {
+01463 <font class="comment">// The buffer played passed the last sample. Flag the source as stopped.</font>
+01464 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a> = <a class="code" href="namespaceNLSOUND.html#a86a35">NL_DSOUND_ENDED</a>;
+01465 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] SLNC: ENDED"</font>, <font class="keyword">this</font>));
+01466
+01467 <font class="comment">// If the buffer was playing, mark it as stopped</font>
+01468 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> == <a class="code" href="namespaceNLSOUND.html#a85a30">NL_DSOUND_PLAYING</a>)
+01469 {
+01470 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> = <a class="code" href="namespaceNLSOUND.html#a85a32">NL_DSOUND_STOPPED</a>;
+01471 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] SLNC: STOPPED"</font>, <font class="keyword">this</font>));
+01472 }
+01473 }
+01474 <font class="keywordflow">else</font> <font class="keywordflow">if</font> ((playPos &lt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>) &amp;&amp; (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a> == <a class="code" href="namespaceNLSOUND.html#a86a33">NL_DSOUND_TAIL1</a>))
+01475 {
+01476 <font class="comment">// The play cursor wrapped around the buffer and is now before the end position</font>
+01477 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a> = <a class="code" href="namespaceNLSOUND.html#a86a34">NL_DSOUND_TAIL2</a>;
+01478 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FILL: ENDSTATE=%d, E=%d, P=%d"</font>, <font class="keyword">this</font>, (<font class="keywordtype">int</font>) <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>, playPos));
+01479 }
+01480
+01481
+01482 <font class="comment">// Update the amount of silence written</font>
+01483 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> += bytes1 + bytes2;
+01484 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>)
+01485 {
+01486 <font class="comment">// The buffer is now completely filled with silence</font>
+01487 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a29">NL_DSOUND_SILENCED</a>;
+01488 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] SLNC: SILENCED"</font>, <font class="keyword">this</font>));
+01489
+01490 <font class="comment">// If the buffer was playing, mark it as stopped</font>
+01491 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> == <a class="code" href="namespaceNLSOUND.html#a85a30">NL_DSOUND_PLAYING</a>)
+01492 {
+01493 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> = <a class="code" href="namespaceNLSOUND.html#a85a32">NL_DSOUND_STOPPED</a>;
+01494 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] SLNC: STOPPED*"</font>, <font class="keyword">this</font>));
+01495 }
+01496 }
+01497
+01498 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] SLNC: P=%d, W=%d, NW=%d, SZ=%d, BW=%d, S=%d, B=%d"</font>, <font class="keyword">this</font>, playPos, writePos, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a>, bytes1 + bytes2));
+01499
+01500
+01501 <font class="preprocessor">#if NLSOUND_PROFILE</font>
+01502 <font class="preprocessor"></font> _TotalUpdateSize += bytes1 + bytes2;
+01503 _PosTime += CTime::ticksToSecond(startLock - startPos);
+01504 _LockTime += CTime::ticksToSecond(startCopy - startLock);
+01505 _CopyTime += CTime::ticksToSecond(startUnlock - startCopy);
+01506 _UnlockTime += CTime::ticksToSecond(CTime::getPerformanceTime() - startUnlock);
+01507 _CopyCount++;
+01508 <font class="preprocessor">#endif</font>
+01509 <font class="preprocessor"></font>
+01510 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+01511 }
+01512
+01513
+01514 <font class="comment">// ******************************************************************</font>
+01515
+<a name="l01524"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c4">01524</a> <font class="keywordtype">void</font> CSourceDSound::getFadeOutSize(uint32 writePos, uint32 &amp;xfadeSize, sint16* &amp;in1, uint32 &amp;writtenTooMuch)
+01525 {
+01526 <font class="comment">// The number of samples over which we will do the crossfade</font>
+01527 xfadeSize = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r5">_XFadeSize</a>;
+01528
+01529
+01530 <font class="comment">// The tricky part of this method is to figger out how many samples of the old</font>
+01531 <font class="comment">// buffer were written after the write cursor and figger our with what position </font>
+01532 <font class="comment">// in the old buffer the write cursor corresponds. We have to consider the following</font>
+01533 <font class="comment">// cases:</font>
+01534 <font class="comment">//</font>
+01535 <font class="comment">// - the old buffer just looped, </font>
+01536 <font class="comment">// - the old buffer is finished, but stil has samples in the DirectSound buffer</font>
+01537 <font class="comment">// - the default case, i.e. the old buffer is playing somewhere in the middle.</font>
+01538 <font class="comment">//</font>
+01539
+01540 <font class="comment">// How many bytes did we write after the write position?</font>
+01541
+01542 writtenTooMuch = <a class="code" href="source__dsound_8cpp.html#a3">NLSOUND_DISTANCE</a>(writePos, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>);
+01543
+01544 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FADE: TOO=%d"</font>, <font class="keyword">this</font>, writtenTooMuch));
+01545
+01546
+01547 uint8* <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> = ((CBufferDSound*) <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a>)-&gt;getData();
+01548
+01549 <font class="comment">// If the sound is finished and all the samples are written in the</font>
+01550 <font class="comment">// buffer, it's possible that there are still samples after the write</font>
+01551 <font class="comment">// position. If this is the case, we have to do a fade out. If there is</font>
+01552 <font class="comment">// only silence, we only need to copy without fade.</font>
+01553
+01554 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> &gt; 0)
+01555 {
+01556
+01557 <font class="keywordflow">if</font> (writtenTooMuch &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a>)
+01558 {
+01559 writtenTooMuch -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a>;
+01560 in1 = (sint16*) (<a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> - writtenTooMuch) ;
+01561
+01562 <font class="keywordflow">if</font> (writtenTooMuch &lt; 2 * xfadeSize)
+01563 {
+01564 xfadeSize = writtenTooMuch / 2;
+01565 }
+01566 }
+01567 <font class="keywordflow">else</font>
+01568 {
+01569 xfadeSize = 0;
+01570 }
+01571
+01572 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FADE: END, TOO=%d, S=%d, F=%d"</font>, <font class="keyword">this</font>, writtenTooMuch, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a>, xfadeSize));
+01573 }
+01574
+01575 <font class="comment">// If the sound looped, it's possible that the number of samples</font>
+01576 <font class="comment">// written is small. In that case, the write cursor is still inside</font>
+01577 <font class="comment">// the previous loop. All we have to do is fade out the last part</font>
+01578 <font class="comment">// of the previous loop. </font>
+01579
+01580 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (writtenTooMuch &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>)
+01581 {
+01582
+01583 writtenTooMuch -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>;
+01584
+01585 in1 = (sint16*) (<a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> - writtenTooMuch) ;
+01586
+01587 <font class="keywordflow">if</font> (writtenTooMuch &lt; 2 * xfadeSize)
+01588 {
+01589 xfadeSize = writtenTooMuch / 2;
+01590 }
+01591
+01592 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FADE: LOOPED, TOO=%d, F=%d"</font>, <font class="keyword">this</font>, writtenTooMuch, xfadeSize));
+01593
+01594 }
+01595
+01596 <font class="comment">// This is the default case. Simply fade from the previous to the next buffer.</font>
+01597 <font class="comment">// The variable writtenTooMuch tells us how much of the previous sound has</font>
+01598 <font class="comment">// been written after the current write cursor. We just have to check there</font>
+01599 <font class="comment">// are enough samples available for the fade.</font>
+01600
+01601 <font class="keywordflow">else</font>
+01602 {
+01603 in1 = (sint16*) (<a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + (sint32) <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> - writtenTooMuch);
+01604
+01605 <font class="keywordflow">if</font> (xfadeSize &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>)
+01606 {
+01607 xfadeSize = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>;
+01608 }
+01609
+01610 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FADE: STD, TOO=%d, F=%d"</font>, <font class="keyword">this</font>, writtenTooMuch, xfadeSize));
+01611 }
+01612 }
+01613
+01614
+01615
+01616 <font class="comment">// ******************************************************************</font>
+01617
+<a name="l01618"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c7">01618</a> <font class="keywordtype">void</font> CSourceDSound::crossFade()
+01619 {
+01620 uint8 *ptr1, *ptr2;
+01621 DWORD bytes1, bytes2;
+01622 DWORD playPos, writePos;
+01623 uint32 i;
+01624
+01625
+01626
+01627 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> == NULL)
+01628 {
+01629 <font class="keywordflow">return</font>;
+01630 }
+01631
+01632 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> == 0)
+01633 {
+01634 <font class="keywordflow">return</font>;
+01635 }
+01636
+01637
+01638 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(start);
+01639
+01640
+01641 EnterCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+01642
+01643
+01644
+01645 <font class="comment">// The source is currently playing an other buffer. We will do a hot</font>
+01646 <font class="comment">// swap between the old and the new buffer. DirectSound maintains two</font>
+01647 <font class="comment">// cursors into the buffer: the play cursor and the write cursor.</font>
+01648 <font class="comment">// The write cursor indicates where we can start writing the new samples.</font>
+01649 <font class="comment">// To avoid clicks, we have to do a cross fade between the old buffer and</font>
+01650 <font class="comment">// the new buffer.</font>
+01651
+01652 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;GetCurrentPosition(&amp;playPos, &amp;writePos);
+01653
+01654
+01655 <font class="comment">// The number of bytes we will write to the DirectSound buffer</font>
+01656 uint32 bytes = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r1">_SwapCopySize</a>;
+01657 <font class="keywordflow">if</font> (bytes &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a>-&gt;getSize())
+01658 {
+01659 bytes = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a>-&gt;getSize();
+01660 }
+01661
+01662
+01663 <font class="comment">// Lock the DirectSound buffer</font>
+01664
+01665 <font class="keywordflow">if</font> (FAILED(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Lock(writePos, bytes, (LPVOID*) &amp;ptr1, &amp;bytes1, (LPVOID*) &amp;ptr2, &amp;bytes2, 0)))
+01666 {
+01667 LeaveCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+01668 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Failed to lock the DirectSound secondary buffer"</font>);
+01669 }
+01670
+01671
+01672 sint16* in1;
+01673 uint8* data1 = ((CBufferDSound*) <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a>)-&gt;getData();
+01674 uint8* data2 = ((CBufferDSound*) <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a>)-&gt;getData();
+01675 sint16* in2 = (sint16*) data2;
+01676 sint16* out = (sint16*) ptr1;
+01677
+01678 <font class="comment">// The number of samples over which we will do the crossfade</font>
+01679 uint32 xfadeSize;
+01680 uint32 xfadeByteSize;
+01681 uint32 writtenTooMuch;
+01682
+01683 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c4">getFadeOutSize</a>(writePos, xfadeSize, in1, writtenTooMuch);
+01684 xfadeByteSize = 2 * xfadeSize;
+01685
+01686 <font class="preprocessor">#define MIX 1</font>
+01687 <font class="preprocessor"></font>
+01688
+01689 <font class="preprocessor">#if MIX</font>
+01690 <font class="preprocessor"></font> <font class="keywordtype">float</font> incr, amp1, amp2;
+01691
+01692 <font class="keywordflow">if</font> (xfadeSize == 0)
+01693 {
+01694 amp1 = 0.0f;
+01695 amp2 = 1.0f;
+01696 incr = 0.0f;
+01697 }
+01698 <font class="keywordflow">else</font>
+01699 {
+01700 amp1 = 1.0f;
+01701 amp2 = 0.0f;
+01702 incr = 1.0f / xfadeSize;
+01703 }
+01704
+01705 <font class="preprocessor">#else</font>
+01706 <font class="preprocessor"></font> <font class="keywordtype">float</font> incr, amp1;
+01707
+01708 <font class="keywordflow">if</font> (xfadeSize == 0)
+01709 {
+01710 amp1 = 0.0f;
+01711 incr = 0.0f;
+01712 }
+01713 <font class="keywordflow">else</font>
+01714 {
+01715 amp1 = 1.0f;
+01716 incr = 1.0f / xfadeSize;
+01717 }
+01718
+01719 <font class="preprocessor">#endif</font>
+01720 <font class="preprocessor"></font>
+01721
+01722 <font class="comment">// Start copying the samples</font>
+01723
+01724
+01725 <font class="comment">// In the first case, the cross fade is completely contained in the first buffer</font>
+01726 <font class="comment">// pointed to by ptr1.</font>
+01727 <font class="keywordflow">if</font> (xfadeByteSize &lt; bytes1)
+01728 {
+01729
+01730 <font class="comment">// Do cross fade</font>
+01731
+01732 <font class="keywordflow">for</font> (i = 0; i &lt; xfadeSize; i++)
+01733 {
+01734 <font class="preprocessor">#if MIX</font>
+01735 <font class="preprocessor"></font> out[i] = (sint16) (amp1 * in1[i] + amp2 * in2[i]);
+01736 amp1 -= incr;
+01737 amp2 += incr;
+01738 <font class="preprocessor">#else</font>
+01739 <font class="preprocessor"></font> out[i] = (sint16) (amp1 * in1[i]);
+01740 amp1 -= incr;
+01741 <font class="preprocessor">#endif</font>
+01742 <font class="preprocessor"></font> }
+01743
+01744 <font class="comment">// Copy remaining samples</font>
+01745
+01746 <font class="preprocessor">#if MIX</font>
+01747 <font class="preprocessor"></font> CFastMem::memcpy(ptr1 + xfadeByteSize, data2 + xfadeByteSize, bytes1 - xfadeByteSize);
+01748 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = bytes1;
+01749 <font class="preprocessor">#else</font>
+01750 <font class="preprocessor"></font> CFastMem::memcpy(ptr1 + xfadeByteSize, data2, bytes1 - xfadeByteSize);
+01751 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = bytes1 - xfadeByteSize;
+01752 <font class="preprocessor">#endif</font>
+01753 <font class="preprocessor"></font>
+01754 <font class="keywordflow">if</font> (ptr2)
+01755 {
+01756 CFastMem::memcpy(ptr2, data2 + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, bytes2);
+01757 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += bytes2;
+01758 }
+01759
+01760 }
+01761
+01762 <font class="comment">// In the second case, the cross fade stretches over the first and the second buffers.</font>
+01763 <font class="keywordflow">else</font>
+01764 {
+01765
+01766 uint32 fade1 = bytes1 / 2;
+01767 uint32 fade2 = xfadeSize - fade1;
+01768
+01769 <font class="comment">// Do cross fade</font>
+01770
+01771 <font class="comment">// Part 1, start at ptr1</font>
+01772 <font class="keywordflow">for</font> (i = 0; i &lt; fade1; i++)
+01773 {
+01774 <font class="preprocessor">#if MIX</font>
+01775 <font class="preprocessor"></font> out[i] = (sint16) (amp1 * in1[i] + amp2 * in2[i]);
+01776 amp1 -= incr;
+01777 amp2 += incr;
+01778 <font class="preprocessor">#else</font>
+01779 <font class="preprocessor"></font> out[i] = (sint16) (amp1 * in1[i]);
+01780 amp1 -= incr;
+01781 <font class="preprocessor">#endif</font>
+01782 <font class="preprocessor"></font> }
+01783 <font class="preprocessor">#if MIX</font>
+01784 <font class="preprocessor"></font> <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = bytes1;
+01785 <font class="preprocessor">#else</font>
+01786 <font class="preprocessor"></font> <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = 0;
+01787 <font class="preprocessor">#endif</font>
+01788 <font class="preprocessor"></font>
+01789
+01790 <font class="keywordflow">if</font> (ptr2)
+01791 {
+01792 out = (sint16*) ptr2;
+01793
+01794 <font class="comment">// Part 2, ontinue at ptr2</font>
+01795 <font class="keywordflow">for</font> (uint32 k = 0; i &lt; xfadeSize; i++, k++)
+01796 {
+01797 <font class="preprocessor">#if MIX</font>
+01798 <font class="preprocessor"></font> out[k] = (sint16) (amp1 * in1[i] + amp2 * in2[i]);
+01799 amp1 -= incr;
+01800 amp2 += incr;
+01801 <font class="preprocessor">#else</font>
+01802 <font class="preprocessor"></font> out[k] = (sint16) (amp1 * in1[i]);
+01803 amp1 -= incr;
+01804 <font class="preprocessor">#endif</font>
+01805 <font class="preprocessor"></font> }
+01806
+01807 <font class="comment">// Copy remaining samples</font>
+01808 <font class="preprocessor">#if MIX</font>
+01809 <font class="preprocessor"></font> CFastMem::memcpy(ptr2 + 2 * k, data2 + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> + 2 * k, bytes2 - 2 * k);
+01810 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += bytes2;
+01811 <font class="preprocessor">#else</font>
+01812 <font class="preprocessor"></font> CFastMem::memcpy(ptr2 + 2 * k, data2, bytes2 - 2 * k);
+01813 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = bytes2 - 2 * k;
+01814 <font class="preprocessor">#endif</font>
+01815 <font class="preprocessor"></font> }
+01816 }
+01817
+01818
+01819 <font class="comment">// Unlock the DirectSound buffer</font>
+01820 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Unlock(ptr1, bytes1, ptr2, bytes2);
+01821
+01822
+01823 <font class="comment">// Update the state variables</font>
+01824
+01825 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> = 0;
+01826
+01827 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> = (writePos + bytes1 + bytes2);
+01828 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>)
+01829 {
+01830 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+01831 }
+01832
+01833
+01834
+01835 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a27">NL_DSOUND_FILLING</a>;
+01836
+01837
+01838 <font class="comment">// Swap the two buffers</font>
+01839 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a>-&gt;getSize();
+01840 <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a>;
+01841 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a> = 0;
+01842
+01843 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_8">setPitch</a>(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o14">_Freq</a>);
+01844
+01845 <font class="comment">// Check if we've reached the end of the file</font>
+01846 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> == <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a>)
+01847 {
+01848 <font class="keywordflow">if</font> (_Loop)
+01849 {
+01850 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = 0;
+01851 }
+01852 <font class="keywordflow">else</font>
+01853 {
+01854 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a28">NL_DSOUND_SILENCING</a>;
+01855 }
+01856 }
+01857
+01858
+01859 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] XFADE"</font>, <font class="keyword">this</font>));
+01860 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] P=%d, W=%d, NW=%d, SZ=%d, BW=%d, B=%d"</font>, <font class="keyword">this</font>, playPos, writePos, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, bytes1 + bytes2));
+01861
+01862
+01863
+01864 LeaveCriticalSection(&amp;<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
+01865
+01866
+01867 <font class="preprocessor">#if NLSOUND_PROFILE</font>
+01868 <font class="preprocessor"></font> _LastSwapTime = CTime::ticksToSecond(CTime::getPerformanceTime() - start);
+01869 _TotalSwapTime += _LastSwapTime;
+01870 _MaxSwapTime = (_LastSwapTime &gt; _MaxSwapTime) ? _LastSwapTime : _MaxSwapTime;
+01871 _MinSwapTime = (_LastSwapTime &lt; _MinSwapTime) ? _LastSwapTime : _MinSwapTime;
+01872 _SwapCount++;
+01873 <font class="preprocessor">#endif</font>
+01874 <font class="preprocessor"></font>
+01875 }
+01876
+01877
+01878
+01879 <font class="comment">// ******************************************************************</font>
+01880
+<a name="l01881"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c8">01881</a> <font class="keywordtype">void</font> CSourceDSound::fadeOut()
+01882 {
+01883 uint8 *ptr1, *ptr2;
+01884 DWORD bytes1, bytes2;
+01885 DWORD playPos, writePos;
+01886 uint32 i;
+01887
+01888
+01889 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> == NULL)
+01890 {
+01891 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a28">NL_DSOUND_SILENCING</a>;
+01892 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> = <a class="code" href="namespaceNLSOUND.html#a85a32">NL_DSOUND_STOPPED</a>;
+01893 <font class="keywordflow">return</font>;
+01894 }
+01895
+01896 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> == 0)
+01897 {
+01898 <font class="keywordflow">return</font>;
+01899 }
+01900
+01901 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(start);
+01902
+01903
+01904 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;GetCurrentPosition(&amp;playPos, &amp;writePos);
+01905
+01906
+01907 <font class="comment">// Lock the DirectSound buffer</font>
+01908
+01909 <font class="keywordflow">if</font> (FAILED(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Lock(writePos, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r1">_SwapCopySize</a>, (LPVOID*) &amp;ptr1, &amp;bytes1, (LPVOID*) &amp;ptr2, &amp;bytes2, 0)))
+01910 {
+01911 <font class="keywordflow">throw</font> ESoundDriver(<font class="stringliteral">"Failed to lock the DirectSound secondary buffer"</font>);
+01912 }
+01913
+01914
+01915
+01916 <font class="comment">// in1 points to the position in the old buffer where the fade out starts</font>
+01917 sint16* in1;
+01918 sint16* out = (sint16*) ptr1;
+01919
+01920 <font class="comment">// The number of samples over which we will do the crossfade</font>
+01921 uint32 xfadeSize;
+01922 uint32 xfadeByteSize;
+01923 uint32 writtenTooMuch;
+01924
+01925 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#c4">getFadeOutSize</a>(writePos, xfadeSize, in1, writtenTooMuch);
+01926 xfadeByteSize = 2 * xfadeSize;
+01927
+01928 <font class="keywordtype">float</font> amp1, incr;
+01929
+01930 <font class="keywordflow">if</font> (xfadeSize == 0)
+01931 {
+01932 amp1 = 0.0f;
+01933 incr = 0.0f;
+01934 }
+01935 <font class="keywordflow">else</font>
+01936 {
+01937 amp1 = 1.0f;
+01938 incr = 1.0f / xfadeSize;
+01939 }
+01940
+01941
+01942 <font class="keywordflow">if</font> (writtenTooMuch &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>)
+01943 {
+01944 <font class="comment">// The buffer looped. Count backwards from the end of the file.</font>
+01945 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> - writtenTooMuch;
+01946 }
+01947 <font class="keywordflow">else</font>
+01948 {
+01949 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> -= writtenTooMuch;
+01950 }
+01951
+01952
+01953 <font class="comment">// Start copying the samples</font>
+01954
+01955
+01956 <font class="comment">// In the first case, the fade out is completely contained in the first buffer</font>
+01957 <font class="comment">// pointed to by ptr1.</font>
+01958 <font class="keywordflow">if</font> (xfadeByteSize &lt; bytes1)
+01959 {
+01960
+01961 <font class="comment">// Do cross fade</font>
+01962
+01963 <font class="keywordflow">for</font> (i = 0; i &lt; xfadeSize; i++)
+01964 {
+01965 out[i] = (sint16) (amp1 * in1[i]);
+01966 amp1 -= incr;
+01967 }
+01968
+01969 <font class="comment">// Copy remaining samples</font>
+01970
+01971 memset(ptr1 + xfadeByteSize, 0, bytes1 - xfadeByteSize);
+01972 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> = bytes1 - xfadeByteSize;
+01973
+01974 <font class="keywordflow">if</font> (ptr2)
+01975 {
+01976 memset(ptr2, 0, bytes2);
+01977 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> += bytes2;
+01978 }
+01979
+01980 }
+01981
+01982 <font class="comment">// In the second case, the fade out stretches over the first and the second buffers.</font>
+01983 <font class="keywordflow">else</font>
+01984 {
+01985
+01986 uint32 fade1 = bytes1 / 2;
+01987 uint32 fade2 = xfadeSize - fade1;
+01988
+01989 <font class="comment">// Do cross fade</font>
+01990
+01991 <font class="comment">// Part 1, start at ptr1</font>
+01992 <font class="keywordflow">for</font> (i = 0; i &lt; fade1; i++)
+01993 {
+01994 out[i] = (sint16) (amp1 * in1[i]);
+01995 amp1 -= incr;
+01996 }
+01997
+01998
+01999 <font class="keywordflow">if</font> (ptr2)
+02000 {
+02001 out = (sint16*) ptr2;
+02002
+02003 <font class="comment">// Part 2, continue at ptr2</font>
+02004 <font class="keywordflow">for</font> (uint32 k = 0; i &lt; xfadeSize; i++, k++)
+02005 {
+02006 out[k] = (sint16) (amp1 * in1[i]);
+02007 amp1 -= incr;
+02008 }
+02009
+02010 <font class="comment">// Clear remaining samples</font>
+02011 memset(ptr2 + 2 * k, 0, bytes2 - 2 * k);
+02012 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> = bytes2 - 2 * k;
+02013 }
+02014
+02015 }
+02016
+02017
+02018 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += xfadeByteSize;
+02019
+02020
+02021 <font class="comment">// Unlock the DirectSound buffer</font>
+02022 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Unlock(ptr1, bytes1, ptr2, bytes2);
+02023
+02024
+02025 <font class="comment">// Update the next write position</font>
+02026 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> = (writePos + bytes1 + bytes2);
+02027 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>)
+02028 {
+02029 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+02030 }
+02031
+02032
+02033 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a28">NL_DSOUND_SILENCING</a>;
+02034 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FDOU: SILENCING"</font>, <font class="keyword">this</font>));
+02035
+02036 <font class="comment">// Keep track of where tha last sample was written and the position</font>
+02037 <font class="comment">// of the play cursor relative to the end position. if the _EndState</font>
+02038 <font class="comment">// is 0, the play cursor is after the end position, 1 otherwise.</font>
+02039 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a> = writePos + xfadeSize;
+02040 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a> &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>)
+02041 {
+02042 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a> -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+02043 }
+02044
+02045 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a> = (playPos &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>)? <a class="code" href="namespaceNLSOUND.html#a86a33">NL_DSOUND_TAIL1</a> : <a class="code" href="namespaceNLSOUND.html#a86a34">NL_DSOUND_TAIL2</a>;
+02046 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FDOU: ENDSTATE=%d, E=%d, P=%d"</font>, <font class="keyword">this</font>, (<font class="keywordtype">int</font>) <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>, playPos));
+02047
+02048
+02049 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FDOU: P=%d, W=%d, NW=%d, SZ=%d, BW=%d, S=%d, B=%d"</font>, <font class="keyword">this</font>, playPos, writePos, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a>, bytes1 + bytes2));
+02050
+02051
+02052
+02053 <font class="preprocessor">#if NLSOUND_PROFILE</font>
+02054 <font class="preprocessor"></font> _LastSwapTime = CTime::ticksToSecond(CTime::getPerformanceTime() - start);
+02055 _TotalSwapTime += _LastSwapTime;
+02056 _MaxSwapTime = (_LastSwapTime &gt; _MaxSwapTime) ? _LastSwapTime : _MaxSwapTime;
+02057 _MinSwapTime = (_LastSwapTime &lt; _MinSwapTime) ? _LastSwapTime : _MinSwapTime;
+02058 _SwapCount++;
+02059 <font class="preprocessor">#endif</font>
+02060 <font class="preprocessor"></font>
+02061 }
+02062
+02063 <font class="comment">// ******************************************************************</font>
+02064
+<a name="l02065"></a><a class="code" href="classNLSOUND_1_1CSourceDSound.html#c9">02065</a> <font class="keywordtype">void</font> CSourceDSound::fadeIn()
+02066 {
+02067 <font class="keywordtype">bool</font> <a class="code" href="driver__opengl__extension__def_8h.html#a400">res</a> = <font class="keyword">false</font>;
+02068 uint8 *ptr1, *ptr2;
+02069 DWORD bytes1, bytes2;
+02070 DWORD playPos, writePos;
+02071
+02072
+02073 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a> == NULL)
+02074 {
+02075 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a28">NL_DSOUND_SILENCING</a>;
+02076 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o4">_UserState</a> = <a class="code" href="namespaceNLSOUND.html#a85a32">NL_DSOUND_STOPPED</a>;
+02077 <font class="keywordflow">return</font>;
+02078 }
+02079
+02080 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a> == 0)
+02081 {
+02082 <font class="keywordflow">return</font>;
+02083 }
+02084
+02085 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startPos);
+02086
+02087 <font class="comment">// Set the correct pitch for this sound</font>
+02088 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#z970_8">setPitch</a>(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o14">_Freq</a>);
+02089
+02090 <font class="comment">// Set the correct volume</font>
+02091 <font class="comment">// FIXME: a bit of a hack</font>
+02092 <font class="keyword">const</font> CVector &amp;pos = CListenerDSound::instance()-&gt;getPos();
+02093 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#a6">updateVolume</a>(pos);
+02094
+02095
+02096 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;GetCurrentPosition(&amp;playPos, &amp;writePos);
+02097
+02098 uint8* <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> = ((CBufferDSound*) <a class="code" href="classNLSOUND_1_1ISource.html#n0">_Buffer</a>)-&gt;getData();
+02099 uint32 available = (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> &lt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a>) ? <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a> - <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> : 0;
+02100 uint32 bytes = <a class="code" href="source__dsound_8cpp.html#a2">NLSOUND_MIN</a>(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#r1">_SwapCopySize</a>, available);
+02101 <font class="comment">// uint32 clear = _SwapCopySize - available;</font>
+02102
+02103
+02104 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> = 0;
+02105
+02106 <font class="comment">// Lock the buffer</font>
+02107
+02108 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startLock);
+02109
+02110
+02111 <font class="keywordflow">if</font> (!<a class="code" href="classNLSOUND_1_1CSourceDSound.html#c1">lock</a>(writePos, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r1">_SwapCopySize</a>, ptr1, bytes1, ptr2, bytes2))
+02112 {
+02113 <font class="keywordflow">return</font>;
+02114 }
+02115
+02116
+02117 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startCopy);
+02118
+02119 <font class="comment">// Start copying the samples</font>
+02120
+02121 <font class="keywordflow">if</font> (bytes1 &lt;= bytes) {
+02122
+02123 CFastMem::memcpy(ptr1, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, bytes1);
+02124 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += bytes1;
+02125 bytes -= bytes1;
+02126
+02127 <font class="keywordflow">if</font> (ptr2)
+02128 {
+02129 <font class="keywordflow">if</font> (bytes &gt; 0)
+02130 {
+02131 CFastMem::memcpy(ptr2, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, bytes);
+02132 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += bytes;
+02133 }
+02134
+02135 <font class="keywordflow">if</font> (bytes &lt; bytes2)
+02136 {
+02137 <font class="keywordflow">if</font> (_Loop)
+02138 {
+02139 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FDIN: LOOP"</font>, <font class="keyword">this</font>));
+02140
+02141 CFastMem::memcpy(ptr2 + bytes, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a>, bytes2 - bytes);
+02142 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = bytes2 - bytes;
+02143 }
+02144 <font class="keywordflow">else</font>
+02145 {
+02146 memset(ptr2 + bytes, 0, bytes2 - bytes);
+02147 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> = bytes2 - bytes;
+02148 }
+02149 }
+02150 }
+02151 }
+02152 <font class="keywordflow">else</font>
+02153 {
+02154 <font class="keywordflow">if</font> (bytes &gt; 0)
+02155 {
+02156 CFastMem::memcpy(ptr1, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, bytes);
+02157 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += bytes;
+02158 }
+02159
+02160 <font class="keywordflow">if</font> (_Loop)
+02161 {
+02162 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FDIN: LOOP"</font>, <font class="keyword">this</font>));
+02163
+02164 CFastMem::memcpy(ptr1 + bytes, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a>, bytes1 - bytes);
+02165 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = bytes1 - bytes;
+02166
+02167 <font class="keywordflow">if</font> (ptr2)
+02168 {
+02169 CFastMem::memcpy(ptr2, <a class="code" href="driver__opengl__extension__def_8h.html#a394">data</a> + <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, bytes2);
+02170 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> += bytes2;
+02171 }
+02172 }
+02173 <font class="keywordflow">else</font>
+02174 {
+02175 memset(ptr1 + bytes, 0, bytes1 - bytes);
+02176 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> = bytes1 - bytes;
+02177
+02178 <font class="keywordflow">if</font> (ptr2)
+02179 {
+02180 memset(ptr2, 0, bytes2);
+02181 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a> += bytes2;
+02182 }
+02183 }
+02184 }
+02185
+02186
+02187 <a class="code" href="source__dsound_8cpp.html#a0">INITTIME</a>(startUnlock);
+02188
+02189 <font class="comment">// Unlock the buffer</font>
+02190 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>-&gt;Unlock(ptr1, bytes1, ptr2, bytes2);
+02191
+02192
+02193 <font class="comment">// Update the state variables</font>
+02194
+02195 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a27">NL_DSOUND_FILLING</a>;
+02196 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FDIN: FILLING"</font>, <font class="keyword">this</font>));
+02197
+02198
+02199 <font class="comment">// Check if we've reached the end of the file</font>
+02200 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> == <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a>)
+02201 {
+02202 <font class="keywordflow">if</font> (_Loop)
+02203 {
+02204 <font class="comment">// If we're looping, start all over again</font>
+02205 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FDIN: LOOP"</font>, <font class="keyword">this</font>));
+02206 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> = 0;
+02207 }
+02208 <font class="keywordflow">else</font>
+02209 {
+02210 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o6">_SecondaryBufferState</a> = <a class="code" href="namespaceNLSOUND.html#a84a28">NL_DSOUND_SILENCING</a>;
+02211
+02212 <font class="comment">// Keep track of where tha last sample was written and the position</font>
+02213 <font class="comment">// of the play cursor relative to the end position. if the _EndState</font>
+02214 <font class="comment">// is NL_DSOUND_TAIL1, the play cursor is after the end position, </font>
+02215 <font class="comment">// NL_DSOUND_TAIL2 otherwise.</font>
+02216 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a> = writePos + bytes;
+02217 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a> &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>)
+02218 {
+02219 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a> -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+02220 }
+02221
+02222 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a> = (playPos &gt; <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>)? <a class="code" href="namespaceNLSOUND.html#a86a33">NL_DSOUND_TAIL1</a> : <a class="code" href="namespaceNLSOUND.html#a86a34">NL_DSOUND_TAIL2</a>;
+02223
+02224 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FDIN: SILENCING"</font>, <font class="keyword">this</font>));
+02225 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FDIN: ENDSTATE=%d, E=%d, P=%d"</font>, <font class="keyword">this</font>, (<font class="keywordtype">int</font>) <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o13">_EndState</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>, playPos));
+02226 }
+02227 }
+02228
+02229
+02230 <font class="comment">// Update the write pointer</font>
+02231 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> = writePos + bytes1 + bytes2;
+02232 <font class="keywordflow">if</font> (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> &gt;= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>)
+02233 {
+02234 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a> -= <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r6">_SecondaryBufferSize</a>;
+02235 }
+02236
+02237 <a class="code" href="source__dsound_8cpp.html#a1">DBGPOS</a>((<font class="stringliteral">"[%p] FDIN: P=%d, W=%d, NW=%d, SZ=%d, BW=%d, S=%d, B=%d"</font>, <font class="keyword">this</font>, playPos, writePos, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o1">_BufferSize</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o11">_SilenceWritten</a>, bytes1 + bytes2));
+02238
+02239
+02240 <font class="preprocessor">#if NLSOUND_PROFILE</font>
+02241 <font class="preprocessor"></font> _TotalUpdateSize += bytes1 + bytes2;
+02242 _PosTime += CTime::ticksToSecond(startLock - startPos);
+02243 _LockTime += CTime::ticksToSecond(startCopy - startLock);
+02244 _CopyTime += CTime::ticksToSecond(startUnlock - startCopy);
+02245 _UnlockTime += CTime::ticksToSecond(CTime::getPerformanceTime() - startUnlock);
+02246 _CopyCount++;
+02247 <font class="preprocessor">#endif</font>
+02248 <font class="preprocessor"></font>
+02249
+02250 }
+02251
+02252
+02253
+02254 } <font class="comment">// NLSOUND</font>
+</pre></div>
+
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