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<h1>SoundBuffer.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00002"></a>00002 <span class="comment">//</span>
<a name="l00003"></a>00003 <span class="comment">// SFML - Simple and Fast Multimedia Library</span>
<a name="l00004"></a>00004 <span class="comment">// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)</span>
<a name="l00005"></a>00005 <span class="comment">//</span>
<a name="l00006"></a>00006 <span class="comment">// This software is provided 'as-is', without any express or implied warranty.</span>
<a name="l00007"></a>00007 <span class="comment">// In no event will the authors be held liable for any damages arising from the use of this software.</span>
<a name="l00008"></a>00008 <span class="comment">//</span>
<a name="l00009"></a>00009 <span class="comment">// Permission is granted to anyone to use this software for any purpose,</span>
<a name="l00010"></a>00010 <span class="comment">// including commercial applications, and to alter it and redistribute it freely,</span>
<a name="l00011"></a>00011 <span class="comment">// subject to the following restrictions:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// 1. The origin of this software must not be misrepresented;</span>
<a name="l00014"></a>00014 <span class="comment">// you must not claim that you wrote the original software.</span>
<a name="l00015"></a>00015 <span class="comment">// If you use this software in a product, an acknowledgment</span>
<a name="l00016"></a>00016 <span class="comment">// in the product documentation would be appreciated but is not required.</span>
<a name="l00017"></a>00017 <span class="comment">//</span>
<a name="l00018"></a>00018 <span class="comment">// 2. Altered source versions must be plainly marked as such,</span>
<a name="l00019"></a>00019 <span class="comment">// and must not be misrepresented as being the original software.</span>
<a name="l00020"></a>00020 <span class="comment">//</span>
<a name="l00021"></a>00021 <span class="comment">// 3. This notice may not be removed or altered from any source distribution.</span>
<a name="l00022"></a>00022 <span class="comment">//</span>
<a name="l00024"></a>00024 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment">// Headers</span>
<a name="l00028"></a>00028 <span class="comment"></span><span class="preprocessor">#include <SFML/Audio/SoundBuffer.hpp></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include <SFML/Audio/SoundFile.hpp></span>
<a name="l00030"></a>00030 <span class="preprocessor">#include <SFML/Audio/Sound.hpp></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <SFML/Audio/AudioDevice.hpp></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <SFML/Audio/OpenAL.hpp></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <iostream></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <memory></span>
<a name="l00035"></a>00035
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keyword">namespace </span>sf
<a name="l00038"></a>00038 {
<a name="l00042"></a><a class="code" href="classsf_1_1SoundBuffer.htm#0cabfbfe19b831bf7d5c9592d92ef233">00042</a> <a class="code" href="classsf_1_1SoundBuffer.htm#0cabfbfe19b831bf7d5c9592d92ef233" title="Default constructor.">SoundBuffer::SoundBuffer</a>() :
<a name="l00043"></a>00043 myBuffer (0),
<a name="l00044"></a>00044 myDuration(0.f)
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 <span class="comment">// Create the buffer</span>
<a name="l00047"></a>00047 ALCheck(alGenBuffers(1, &myBuffer));
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049
<a name="l00050"></a>00050
<a name="l00054"></a><a class="code" href="classsf_1_1SoundBuffer.htm#deb60002d4c4a4d8511fb5aa7225224b">00054</a> <a class="code" href="classsf_1_1SoundBuffer.htm#0cabfbfe19b831bf7d5c9592d92ef233" title="Default constructor.">SoundBuffer::SoundBuffer</a>(<span class="keyword">const</span> <a class="code" href="classsf_1_1SoundBuffer.htm" title="SoundBuffer is the low-level for loading and manipulating sound buffers.">SoundBuffer</a>& Copy) :
<a name="l00055"></a>00055 <a class="code" href="classsf_1_1AudioResource.htm" title="Abstract base class for every class that owns a device-dependant resource -- allow...">AudioResource</a> (Copy),
<a name="l00056"></a>00056 <a class="code" href="classsf_1_1Resource.htm" title="Base class for every resource that needs to notify dependent classes about its destruction...">Resource</a><<a class="code" href="classsf_1_1SoundBuffer.htm" title="SoundBuffer is the low-level for loading and manipulating sound buffers.">SoundBuffer</a>>(Copy),
<a name="l00057"></a>00057 myBuffer (0),
<a name="l00058"></a>00058 mySamples (Copy.mySamples),
<a name="l00059"></a>00059 myDuration (Copy.myDuration),
<a name="l00060"></a>00060 mySounds () <span class="comment">// don't copy the attached sounds</span>
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062 <span class="comment">// Create the buffer</span>
<a name="l00063"></a>00063 ALCheck(alGenBuffers(1, &myBuffer));
<a name="l00064"></a>00064
<a name="l00065"></a>00065 <span class="comment">// Update the internal buffer with the new samples</span>
<a name="l00066"></a>00066 Update(Copy.<a class="code" href="classsf_1_1SoundBuffer.htm#cfea4667cb8a5e72b1061fa2647af30f" title="Return the number of channels (1 = mono, 2 = stereo, .">GetChannelsCount</a>(), Copy.<a class="code" href="classsf_1_1SoundBuffer.htm#c4b1b885e3720689c6cbc22ff6cbe571" title="Get the sample rate.">GetSampleRate</a>());
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068
<a name="l00069"></a>00069
<a name="l00073"></a><a class="code" href="classsf_1_1SoundBuffer.htm#ea240161724ffba74a0d6a9e277d3cd5">00073</a> <a class="code" href="classsf_1_1SoundBuffer.htm#ea240161724ffba74a0d6a9e277d3cd5" title="Destructor.">SoundBuffer::~SoundBuffer</a>()
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075 <span class="comment">// First detach the buffer from the sounds that use it (to avoid OpenAL errors)</span>
<a name="l00076"></a>00076 <span class="keywordflow">for</span> (SoundList::const_iterator it = mySounds.begin(); it != mySounds.end(); ++it)
<a name="l00077"></a>00077 (*it)->ResetBuffer();
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="comment">// Destroy the buffer</span>
<a name="l00080"></a>00080 <span class="keywordflow">if</span> (myBuffer)
<a name="l00081"></a>00081 ALCheck(alDeleteBuffers(1, &myBuffer));
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a>00084
<a name="l00088"></a><a class="code" href="classsf_1_1SoundBuffer.htm#232bb58d0910729a542cc2af473c8aa4">00088</a> <span class="keywordtype">bool</span> <a class="code" href="classsf_1_1SoundBuffer.htm#232bb58d0910729a542cc2af473c8aa4" title="Load the sound buffer from a file.">SoundBuffer::LoadFromFile</a>(<span class="keyword">const</span> std::string& Filename)
<a name="l00089"></a>00089 {
<a name="l00090"></a>00090 <span class="comment">// Create the sound file</span>
<a name="l00091"></a>00091 std::auto_ptr<priv::SoundFile> File(priv::SoundFile::CreateRead(Filename));
<a name="l00092"></a>00092
<a name="l00093"></a>00093 <span class="comment">// Open the sound file</span>
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (File.get())
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096 <span class="comment">// Get the sound parameters</span>
<a name="l00097"></a>00097 std::size_t NbSamples = File->GetSamplesCount();
<a name="l00098"></a>00098 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ChannelsCount = File->GetChannelsCount();
<a name="l00099"></a>00099 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> SampleRate = File->GetSampleRate();
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">// Read the samples from the opened file</span>
<a name="l00102"></a>00102 mySamples.resize(NbSamples);
<a name="l00103"></a>00103 <span class="keywordflow">if</span> (File->Read(&mySamples[0], NbSamples) == NbSamples)
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 <span class="comment">// Update the internal buffer with the new samples</span>
<a name="l00106"></a>00106 <span class="keywordflow">return</span> Update(ChannelsCount, SampleRate);
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108 <span class="keywordflow">else</span>
<a name="l00109"></a>00109 {
<a name="l00110"></a>00110 <span class="comment">// Error...</span>
<a name="l00111"></a>00111 std::cerr << <span class="stringliteral">"Failed to read audio data from file \""</span> << Filename << <span class="stringliteral">"\""</span> << std::endl;
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116 <span class="keywordflow">else</span>
<a name="l00117"></a>00117 {
<a name="l00118"></a>00118 <span class="comment">// Error...</span>
<a name="l00119"></a>00119 std::cerr << <span class="stringliteral">"Failed to load sound buffer from file \""</span> << Filename << <span class="stringliteral">"\""</span> << std::endl;
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124
<a name="l00125"></a>00125
<a name="l00129"></a><a class="code" href="classsf_1_1SoundBuffer.htm#694c43f4ee7b2c6277c1ead496d266f3">00129</a> <span class="keywordtype">bool</span> <a class="code" href="classsf_1_1SoundBuffer.htm#694c43f4ee7b2c6277c1ead496d266f3" title="Load the sound buffer from a file in memory.">SoundBuffer::LoadFromMemory</a>(<span class="keyword">const</span> <span class="keywordtype">char</span>* Data, std::size_t SizeInBytes)
<a name="l00130"></a>00130 {
<a name="l00131"></a>00131 <span class="comment">// Create the sound file</span>
<a name="l00132"></a>00132 std::auto_ptr<priv::SoundFile> File(priv::SoundFile::CreateRead(Data, SizeInBytes));
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="comment">// Open the sound file</span>
<a name="l00135"></a>00135 <span class="keywordflow">if</span> (File.get())
<a name="l00136"></a>00136 {
<a name="l00137"></a>00137 <span class="comment">// Get the sound parameters</span>
<a name="l00138"></a>00138 std::size_t NbSamples = File->GetSamplesCount();
<a name="l00139"></a>00139 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ChannelsCount = File->GetChannelsCount();
<a name="l00140"></a>00140 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> SampleRate = File->GetSampleRate();
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="comment">// Read the samples from the opened file</span>
<a name="l00143"></a>00143 mySamples.resize(NbSamples);
<a name="l00144"></a>00144 <span class="keywordflow">if</span> (File->Read(&mySamples[0], NbSamples) == NbSamples)
<a name="l00145"></a>00145 {
<a name="l00146"></a>00146 <span class="comment">// Update the internal buffer with the new samples</span>
<a name="l00147"></a>00147 <span class="keywordflow">return</span> Update(ChannelsCount, SampleRate);
<a name="l00148"></a>00148 }
<a name="l00149"></a>00149 <span class="keywordflow">else</span>
<a name="l00150"></a>00150 {
<a name="l00151"></a>00151 <span class="comment">// Error...</span>
<a name="l00152"></a>00152 std::cerr << <span class="stringliteral">"Failed to read audio data from file in memory"</span> << std::endl;
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00155"></a>00155 }
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157 <span class="keywordflow">else</span>
<a name="l00158"></a>00158 {
<a name="l00159"></a>00159 <span class="comment">// Error...</span>
<a name="l00160"></a>00160 std::cerr << <span class="stringliteral">"Failed to load sound buffer from file in memory"</span> << std::endl;
<a name="l00161"></a>00161
<a name="l00162"></a>00162 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00163"></a>00163 }
<a name="l00164"></a>00164 }
<a name="l00165"></a>00165
<a name="l00166"></a>00166
<a name="l00171"></a><a class="code" href="classsf_1_1SoundBuffer.htm#5efd0d42e07a4c7841b6d4f30849d7dc">00171</a> <span class="keywordtype">bool</span> <a class="code" href="classsf_1_1SoundBuffer.htm#5efd0d42e07a4c7841b6d4f30849d7dc" title="Load the sound buffer from an array of samples - assumed format for samples is 16...">SoundBuffer::LoadFromSamples</a>(<span class="keyword">const</span> Int16* Samples, std::size_t SamplesCount, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ChannelsCount, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> SampleRate)
<a name="l00172"></a>00172 {
<a name="l00173"></a>00173 <span class="keywordflow">if</span> (Samples && SamplesCount && ChannelsCount && SampleRate)
<a name="l00174"></a>00174 {
<a name="l00175"></a>00175 <span class="comment">// Copy the new audio samples</span>
<a name="l00176"></a>00176 mySamples.assign(Samples, Samples + SamplesCount);
<a name="l00177"></a>00177
<a name="l00178"></a>00178 <span class="comment">// Update the internal buffer with the new samples</span>
<a name="l00179"></a>00179 <span class="keywordflow">return</span> Update(ChannelsCount, SampleRate);
<a name="l00180"></a>00180 }
<a name="l00181"></a>00181 <span class="keywordflow">else</span>
<a name="l00182"></a>00182 {
<a name="l00183"></a>00183 <span class="comment">// Error...</span>
<a name="l00184"></a>00184 std::cerr << <span class="stringliteral">"Failed to load sound buffer from memory ("</span>
<a name="l00185"></a>00185 << <span class="stringliteral">"Samples : "</span> << Samples << <span class="stringliteral">", "</span>
<a name="l00186"></a>00186 << <span class="stringliteral">"Samples count : "</span> << SamplesCount << <span class="stringliteral">", "</span>
<a name="l00187"></a>00187 << <span class="stringliteral">"Channels count : "</span> << ChannelsCount << <span class="stringliteral">", "</span>
<a name="l00188"></a>00188 << <span class="stringliteral">"Sample rate : "</span> << SampleRate << <span class="stringliteral">")"</span>
<a name="l00189"></a>00189 << std::endl;
<a name="l00190"></a>00190
<a name="l00191"></a>00191 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00192"></a>00192 }
<a name="l00193"></a>00193 }
<a name="l00194"></a>00194
<a name="l00195"></a>00195
<a name="l00199"></a><a class="code" href="classsf_1_1SoundBuffer.htm#f4515a797138382cf98a4d9cd5047239">00199</a> <span class="keywordtype">bool</span> <a class="code" href="classsf_1_1SoundBuffer.htm#f4515a797138382cf98a4d9cd5047239" title="Save the sound buffer to a file.">SoundBuffer::SaveToFile</a>(<span class="keyword">const</span> std::string& Filename)<span class="keyword"> const</span>
<a name="l00200"></a>00200 <span class="keyword"></span>{
<a name="l00201"></a>00201 <span class="comment">// Create the sound file in write mode</span>
<a name="l00202"></a>00202 std::auto_ptr<priv::SoundFile> File(priv::SoundFile::CreateWrite(Filename, <a class="code" href="classsf_1_1SoundBuffer.htm#cfea4667cb8a5e72b1061fa2647af30f" title="Return the number of channels (1 = mono, 2 = stereo, .">GetChannelsCount</a>(), <a class="code" href="classsf_1_1SoundBuffer.htm#c4b1b885e3720689c6cbc22ff6cbe571" title="Get the sample rate.">GetSampleRate</a>()));
<a name="l00203"></a>00203 <span class="keywordflow">if</span> (File.get())
<a name="l00204"></a>00204 {
<a name="l00205"></a>00205 <span class="comment">// Write the samples to the opened file</span>
<a name="l00206"></a>00206 File->Write(&mySamples[0], mySamples.size());
<a name="l00207"></a>00207
<a name="l00208"></a>00208 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00209"></a>00209 }
<a name="l00210"></a>00210 <span class="keywordflow">else</span>
<a name="l00211"></a>00211 {
<a name="l00212"></a>00212 <span class="comment">// Error...</span>
<a name="l00213"></a>00213 std::cerr << <span class="stringliteral">"Failed to save sound buffer to file \""</span> << Filename << <span class="stringliteral">"\""</span> << std::endl;
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00216"></a>00216 }
<a name="l00217"></a>00217 }
<a name="l00218"></a>00218
<a name="l00219"></a>00219
<a name="l00223"></a><a class="code" href="classsf_1_1SoundBuffer.htm#26b7f93c9d02c34545ff3f1b37206fe0">00223</a> <span class="keyword">const</span> Int16* <a class="code" href="classsf_1_1SoundBuffer.htm#26b7f93c9d02c34545ff3f1b37206fe0" title="Return the sound samples.">SoundBuffer::GetSamples</a>()<span class="keyword"> const</span>
<a name="l00224"></a>00224 <span class="keyword"></span>{
<a name="l00225"></a>00225 <span class="keywordflow">return</span> mySamples.empty() ? NULL : &mySamples[0];
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227
<a name="l00228"></a>00228
<a name="l00232"></a><a class="code" href="classsf_1_1SoundBuffer.htm#5da93e162669ec8c03b902f622261789">00232</a> std::size_t <a class="code" href="classsf_1_1SoundBuffer.htm#5da93e162669ec8c03b902f622261789" title="Return the samples count.">SoundBuffer::GetSamplesCount</a>()<span class="keyword"> const</span>
<a name="l00233"></a>00233 <span class="keyword"></span>{
<a name="l00234"></a>00234 <span class="keywordflow">return</span> mySamples.size();
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236
<a name="l00237"></a>00237
<a name="l00241"></a><a class="code" href="classsf_1_1SoundBuffer.htm#c4b1b885e3720689c6cbc22ff6cbe571">00241</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classsf_1_1SoundBuffer.htm#c4b1b885e3720689c6cbc22ff6cbe571" title="Get the sample rate.">SoundBuffer::GetSampleRate</a>()<span class="keyword"> const</span>
<a name="l00242"></a>00242 <span class="keyword"></span>{
<a name="l00243"></a>00243 ALint SampleRate;
<a name="l00244"></a>00244 ALCheck(alGetBufferi(myBuffer, AL_FREQUENCY, &SampleRate));
<a name="l00245"></a>00245
<a name="l00246"></a>00246 <span class="keywordflow">return</span> SampleRate;
<a name="l00247"></a>00247 }
<a name="l00248"></a>00248
<a name="l00249"></a>00249
<a name="l00253"></a><a class="code" href="classsf_1_1SoundBuffer.htm#cfea4667cb8a5e72b1061fa2647af30f">00253</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classsf_1_1SoundBuffer.htm#cfea4667cb8a5e72b1061fa2647af30f" title="Return the number of channels (1 = mono, 2 = stereo, .">SoundBuffer::GetChannelsCount</a>()<span class="keyword"> const</span>
<a name="l00254"></a>00254 <span class="keyword"></span>{
<a name="l00255"></a>00255 ALint ChannelsCount;
<a name="l00256"></a>00256 ALCheck(alGetBufferi(myBuffer, AL_CHANNELS, &ChannelsCount));
<a name="l00257"></a>00257
<a name="l00258"></a>00258 <span class="keywordflow">return</span> ChannelsCount;
<a name="l00259"></a>00259 }
<a name="l00260"></a>00260
<a name="l00261"></a>00261
<a name="l00265"></a><a class="code" href="classsf_1_1SoundBuffer.htm#525731db309fb7d5b9781e65bc4e0984">00265</a> <span class="keywordtype">float</span> <a class="code" href="classsf_1_1SoundBuffer.htm#525731db309fb7d5b9781e65bc4e0984" title="Get the sound duration.">SoundBuffer::GetDuration</a>()<span class="keyword"> const</span>
<a name="l00266"></a>00266 <span class="keyword"></span>{
<a name="l00267"></a>00267 <span class="keywordflow">return</span> myDuration;
<a name="l00268"></a>00268 }
<a name="l00269"></a>00269
<a name="l00270"></a>00270
<a name="l00274"></a><a class="code" href="classsf_1_1SoundBuffer.htm#cfdc7a2357c06e2e15c408a4fa21bd49">00274</a> <a class="code" href="classsf_1_1SoundBuffer.htm" title="SoundBuffer is the low-level for loading and manipulating sound buffers.">SoundBuffer</a>& <a class="code" href="classsf_1_1SoundBuffer.htm#cfdc7a2357c06e2e15c408a4fa21bd49" title="Assignment operator.">SoundBuffer::operator =</a>(<span class="keyword">const</span> <a class="code" href="classsf_1_1SoundBuffer.htm" title="SoundBuffer is the low-level for loading and manipulating sound buffers.">SoundBuffer</a>& Other)
<a name="l00275"></a>00275 {
<a name="l00276"></a>00276 <a class="code" href="classsf_1_1SoundBuffer.htm" title="SoundBuffer is the low-level for loading and manipulating sound buffers.">SoundBuffer</a> Temp(Other);
<a name="l00277"></a>00277
<a name="l00278"></a>00278 std::swap(mySamples, Temp.<a class="code" href="classsf_1_1SoundBuffer.htm#b0d890ac6d5aff0e3b8835c2fb30c79a" title="Samples buffer.">mySamples</a>);
<a name="l00279"></a>00279 std::swap(myBuffer, Temp.<a class="code" href="classsf_1_1SoundBuffer.htm#b9d31c90ee4febbd075b9c64c3072a65" title="OpenAL buffer identifier.">myBuffer</a>);
<a name="l00280"></a>00280 std::swap(myDuration, Temp.<a class="code" href="classsf_1_1SoundBuffer.htm#79018d0cf609a509e857d7c7102fdda2" title="Sound duration, in seconds.">myDuration</a>);
<a name="l00281"></a>00281 std::swap(mySounds, Temp.<a class="code" href="classsf_1_1SoundBuffer.htm#09a94aaf12403194a6f8a61761272a89" title="List of sounds that are using this buffer.">mySounds</a>); <span class="comment">// swap sounds too, so that they are detached when Temp is destroyed</span>
<a name="l00282"></a>00282
<a name="l00283"></a>00283 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00284"></a>00284 }
<a name="l00285"></a>00285
<a name="l00286"></a>00286
<a name="l00290"></a>00290 <span class="keywordtype">bool</span> SoundBuffer::Update(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ChannelsCount, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> SampleRate)
<a name="l00291"></a>00291 {
<a name="l00292"></a>00292 <span class="comment">// Check parameters</span>
<a name="l00293"></a>00293 <span class="keywordflow">if</span> (!SampleRate || !ChannelsCount || mySamples.empty())
<a name="l00294"></a>00294 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00295"></a>00295
<a name="l00296"></a>00296 <span class="comment">// Find the good format according to the number of channels</span>
<a name="l00297"></a>00297 ALenum Format = priv::AudioDevice::GetInstance().GetFormatFromChannelsCount(ChannelsCount);
<a name="l00298"></a>00298
<a name="l00299"></a>00299 <span class="comment">// Check if the format is valid</span>
<a name="l00300"></a>00300 <span class="keywordflow">if</span> (Format == 0)
<a name="l00301"></a>00301 {
<a name="l00302"></a>00302 std::cerr << <span class="stringliteral">"Unsupported number of channels ("</span> << ChannelsCount << <span class="stringliteral">")"</span> << std::endl;
<a name="l00303"></a>00303 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00304"></a>00304 }
<a name="l00305"></a>00305
<a name="l00306"></a>00306 <span class="comment">// Fill the buffer</span>
<a name="l00307"></a>00307 ALsizei Size = <span class="keyword">static_cast<</span>ALsizei<span class="keyword">></span>(mySamples.size()) * <span class="keyword">sizeof</span>(Int16);
<a name="l00308"></a>00308 ALCheck(alBufferData(myBuffer, Format, &mySamples[0], Size, SampleRate));
<a name="l00309"></a>00309
<a name="l00310"></a>00310 <span class="comment">// Compute the duration</span>
<a name="l00311"></a>00311 myDuration = <span class="keyword">static_cast<</span><span class="keywordtype">float</span><span class="keyword">></span>(mySamples.size()) / SampleRate / ChannelsCount;
<a name="l00312"></a>00312
<a name="l00313"></a>00313 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00314"></a>00314 }
<a name="l00315"></a>00315
<a name="l00316"></a>00316
<a name="l00320"></a>00320 <span class="keywordtype">void</span> SoundBuffer::AttachSound(Sound* Instance)<span class="keyword"> const</span>
<a name="l00321"></a>00321 <span class="keyword"></span>{
<a name="l00322"></a>00322 mySounds.insert(Instance);
<a name="l00323"></a>00323 }
<a name="l00324"></a>00324
<a name="l00325"></a>00325
<a name="l00329"></a>00329 <span class="keywordtype">void</span> SoundBuffer::DetachSound(Sound* Instance)<span class="keyword"> const</span>
<a name="l00330"></a>00330 <span class="keyword"></span>{
<a name="l00331"></a>00331 mySounds.erase(Instance);
<a name="l00332"></a>00332 }
<a name="l00333"></a>00333
<a name="l00334"></a>00334 } <span class="comment">// namespace sf</span>
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