b7b876eb26
git-svn-id: https://sfml.svn.sourceforge.net/svnroot/sfml/branches/sfml2@1397 4e206d99-4929-0410-ac5d-dfc041789085
141 lines
4.2 KiB
C++
141 lines
4.2 KiB
C++
////////////////////////////////////////////////////////////
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//
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// SFML - Simple and Fast Multimedia Library
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// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
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//
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// This software is provided 'as-is', without any express or implied warranty.
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// In no event will the authors be held liable for any damages arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it freely,
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// subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented;
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// you must not claim that you wrote the original software.
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// If you use this software in a product, an acknowledgment
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// in the product documentation would be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such,
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// and must not be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source distribution.
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//
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////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////
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// Headers
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////////////////////////////////////////////////////////////
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#include <SFML/Audio/Music.hpp>
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#include <SFML/Audio/ALCheck.hpp>
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#include <SFML/Audio/SoundFile.hpp>
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#include <SFML/System/Lock.hpp>
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#include <fstream>
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#include <iostream>
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namespace sf
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{
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////////////////////////////////////////////////////////////
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Music::Music() :
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myFile (new priv::SoundFile),
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myDuration(0.f)
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{
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}
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////////////////////////////////////////////////////////////
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Music::~Music()
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{
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// We must stop before destroying the file :)
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Stop();
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delete myFile;
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}
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////////////////////////////////////////////////////////////
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bool Music::OpenFromFile(const std::string& filename)
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{
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// First stop the music if it was already running
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Stop();
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// Create the sound file implementation, and open it in read mode
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if (!myFile->OpenRead(filename))
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{
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std::cerr << "Failed to open \"" << filename << "\" for reading" << std::endl;
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return false;
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}
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// Compute the duration
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myDuration = static_cast<float>(myFile->GetSamplesCount()) / myFile->GetSampleRate() / myFile->GetChannelsCount();
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// Resize the internal buffer so that it can contain 1 second of audio samples
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mySamples.resize(myFile->GetSampleRate());
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// Initialize the stream
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Initialize(myFile->GetChannelsCount(), myFile->GetSampleRate());
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return true;
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}
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////////////////////////////////////////////////////////////
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bool Music::OpenFromMemory(const char* data, std::size_t sizeInBytes)
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{
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// First stop the music if it was already running
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Stop();
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// Create the sound file implementation, and open it in read mode
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if (!myFile->OpenRead(data, sizeInBytes))
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{
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std::cerr << "Failed to open music from memory for reading" << std::endl;
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return false;
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}
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// Compute the duration
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myDuration = static_cast<float>(myFile->GetSamplesCount()) / myFile->GetSampleRate() / myFile->GetChannelsCount();
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// Resize the internal buffer so that it can contain 1 second of audio samples
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mySamples.resize(myFile->GetSampleRate());
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// Initialize the stream
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Initialize(myFile->GetChannelsCount(), myFile->GetSampleRate());
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return true;
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}
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////////////////////////////////////////////////////////////
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float Music::GetDuration() const
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{
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return myDuration;
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}
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////////////////////////////////////////////////////////////
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bool Music::OnGetData(SoundStream::Chunk& data)
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{
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Lock lock(myMutex);
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// Fill the chunk parameters
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data.Samples = &mySamples[0];
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data.NbSamples = myFile->Read(&mySamples[0], mySamples.size());
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// Check if we have reached the end of the audio file
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return data.NbSamples == mySamples.size();
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}
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////////////////////////////////////////////////////////////
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/// /see SoundStream::OnSeek
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////////////////////////////////////////////////////////////
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void Music::OnSeek(float timeOffset)
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{
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Lock lock(myMutex);
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myFile->Seek(timeOffset);
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}
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} // namespace sf
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