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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) < (_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) > (_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(&<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()->removeSource(<font class="keyword">this</font>);
00129
00130 EnterCriticalSection(&<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(&<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o8">_CriticalSection</a>);
00137 DeleteCriticalSection(&<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>->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>->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>->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(&desc, <font class="keyword">sizeof</font>(DSBUFFERDESC));
00191 desc.dwSize = <font class="keyword">sizeof</font>(DSBUFFERDESC);
00192 desc.lpwfxFormat = &<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->countHw3DBuffers() > 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->CreateSoundBuffer(&desc, &<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(&desc, <font class="keyword">sizeof</font>(DSBUFFERDESC));
00219 desc.dwSize = <font class="keyword">sizeof</font>(DSBUFFERDESC);
00220 desc.lpwfxFormat = &<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->countHw2DBuffers() > 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->CreateSoundBuffer(&desc, &<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>->Lock(0, 0, &ptr, &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>->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>->QueryInterface(IID_IDirectSound3DBuffer, (LPVOID *) &<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>->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(&<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(&<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>->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(&<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>)->getData() == 0)
00340 {
00341 <font class="comment">// the sample has been unloaded, can't play!</font>
00342
00343 LeaveCriticalSection(&<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) && (<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 & 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 & 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(&<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(&<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(&<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(&<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(&<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>->GetCurrentPosition(&playPos, &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 > <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 > <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(&<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> >= <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(&<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 > _MaxUpdateTime) ? dt : _MaxUpdateTime;
00579 _MinUpdateTime = (dt < _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>& 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>->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> &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->GetPosition(&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>& 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>->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>& 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>->GetVelocity(&<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>& 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>->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>& 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>->GetConeOrientation(&<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) && (_SecondaryBuffer->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) && (<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>->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>->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) && (<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>->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>->GetFrequency(&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>->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>->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>->GetMode(&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>->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>->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>& mindist, <font class="keywordtype">float</font>& 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>->GetMinDistance(&<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>->GetMaxDistance(&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>& 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 < <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>->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()->getRolloffFactor());</font>
00921 }
00922 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (sqrdist > max * max)
00923 {
00924 <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>->SetVolume(DSBVOLUME_MIN);
00925 <font class="comment">//nlwarning("VOLUME = %ddB, rolloff = %0.2f", DSBVOLUME_MIN/100, CListenerDSound::instance()->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> > 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> < 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>->SetVolume(db);
00953
00954 <font class="comment">/* LONG tmp;</font>
00955 <font class="comment"> _SecondaryBuffer->GetVolume(&tmp);</font>
00956 <font class="comment">*/</font>
00957
00958 <font class="comment">//nlwarning("VOLUME = %d dB, rolloff = %0.2f", db/100, CListenerDSound::instance()->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 < inner)
00978 {
00979 outer = inner;
00980 }
00981
00982 <font class="keywordflow">while</font> (inner < DS3D_MINCONEANGLE)
00983 {
00984 inner += 360;
00985 }
00986
00987 <font class="keywordflow">while</font> (inner > DS3D_MAXCONEANGLE)
00988 {
00989 inner -= 360;
00990 }
00991
00992 <font class="keywordflow">while</font> (outer < DS3D_MINCONEANGLE)
00993 {
00994 outer += 360;
00995 }
00996
00997 <font class="keywordflow">while</font> (outer > 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>->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 < 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 < DSBVOLUME_MIN)
01017 {
01018 volume = DSBVOLUME_MIN;
01019 }
01020 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (volume > 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>->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>& innerAngle, <font class="keywordtype">float</font>& outerAngle, <font class="keywordtype">float</font>& 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>->GetConeAngles(&inner, &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>->GetConeOutsideVolume(&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( &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* &ptr1, DWORD &bytes1, uint8* &ptr2, DWORD &bytes2)
01097 {
01098 HRESULT hr = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o5">_SecondaryBuffer</a>->Lock(writePos, size, (LPVOID*) &ptr1, &bytes1, (LPVOID*) &ptr2, &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>->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>->Lock(<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o9">_NextWritePos</a>, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r0">_UpdateCopySize</a>, (LPVOID*) &ptr1, &bytes1, (LPVOID*) &ptr2, &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>->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>->GetCurrentPosition(&playPos, &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 > <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 < <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>)->getData();
01234 uint32 available = (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> < <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 <= 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 > 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 < 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 > 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>->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> >= <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 > <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> >= <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>->GetCurrentPosition(&playPos, &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 > <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 < <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>->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> >= <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 > <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>) && (<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 < <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o12">_EndPosition</a>) && (<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> >= <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 &xfadeSize, sint16* &in1, uint32 &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>)->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> > 0)
01555 {
01556
01557 <font class="keywordflow">if</font> (writtenTooMuch > <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 < 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 >= <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 < 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 > <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(&<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>->GetCurrentPosition(&playPos, &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 > <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a>->getSize())
01658 {
01659 bytes = <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a>->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>->Lock(writePos, bytes, (LPVOID*) &ptr1, &bytes1, (LPVOID*) &ptr2, &bytes2, 0)))
01666 {
01667 LeaveCriticalSection(&<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>)->getData();
01674 uint8* data2 = ((CBufferDSound*) <a class="code" href="classNLSOUND_1_1CSourceDSound.html#o2">_SwapBuffer</a>)->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 < bytes1)
01728 {
01729
01730 <font class="comment">// Do cross fade</font>
01731
01732 <font class="keywordflow">for</font> (i = 0; i < 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 < 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 < 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>->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> >= <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>->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(&<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 > _MaxSwapTime) ? _LastSwapTime : _MaxSwapTime;
01871 _MinSwapTime = (_LastSwapTime < _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>->GetCurrentPosition(&playPos, &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>->Lock(writePos, <a class="code" href="classNLSOUND_1_1CSourceDSound.html#r1">_SwapCopySize</a>, (LPVOID*) &ptr1, &bytes1, (LPVOID*) &ptr2, &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 > <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 < bytes1)
01959 {
01960
01961 <font class="comment">// Do cross fade</font>
01962
01963 <font class="keywordflow">for</font> (i = 0; i < 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 < 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 < 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>->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> >= <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> >= <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 > <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 > _MaxSwapTime) ? _LastSwapTime : _MaxSwapTime;
02057 _MinSwapTime = (_LastSwapTime < _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 &pos = CListenerDSound::instance()->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>->GetCurrentPosition(&playPos, &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>)->getData();
02099 uint32 available = (<a class="code" href="classNLSOUND_1_1CSourceDSound.html#o10">_BytesWritten</a> < <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 <= 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 > 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 < 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 > 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>->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> >= <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 > <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> >= <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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