* Removed alut

* Using libsndfile to load sounds and music
* Added support for playing music files

.gitignore

@@ -14,3 +14,8 @@ Makefile
 /Testing
 /CTestTestfile.cmake
 /src/CBot/tests/CBot_console/bin/
+.kdev4
+*.kdev4
+*.flv
+*.mp4
+

CMakeLists.txt

@@ -113,6 +113,8 @@ option(GLEW_STATIC "Link statically with GLEW" OFF)
 
 find_package(GLEW REQUIRED)
 
+include("${colobot_SOURCE_DIR}/cmake/FindLibSndFile.cmake")
+
 
 ##
 # Additional settings to use when cross-compiling with MXE (http://mxe.cc/)

cmake/FindLibSndFile.cmake

@@ -0,0 +1,23 @@
+# Base Io build system
+# Written by Jeremy Tregunna <jeremy.tregunna@me.com>
+#
+# Find libsndfile.
+
+FIND_PATH(LIBSNDFILE_INCLUDE_DIR sndfile.h)
+
+SET(LIBSNDFILE_NAMES ${LIBSNDFILE_NAMES} sndfile libsndfile)
+FIND_LIBRARY(LIBSNDFILE_LIBRARY NAMES ${LIBSNDFILE_NAMES} PATH)
+
+IF(LIBSNDFILE_INCLUDE_DIR AND LIBSNDFILE_LIBRARY)
+	SET(LIBSNDFILE_FOUND TRUE)
+ENDIF(LIBSNDFILE_INCLUDE_DIR AND LIBSNDFILE_LIBRARY)
+
+IF(LIBSNDFILE_FOUND)
+	IF(NOT LibSndFile_FIND_QUIETLY)
+		MESSAGE(STATUS "Found LibSndFile: ${LIBSNDFILE_LIBRARY}")
+	ENDIF (NOT LibSndFile_FIND_QUIETLY)
+ELSE(LIBSNDFILE_FOUND)
+	IF(LibSndFile_FIND_REQUIRED)
+		MESSAGE(FATAL_ERROR "Could not find sndfile")
+	ENDIF(LibSndFile_FIND_REQUIRED)
+ENDIF (LIBSNDFILE_FOUND)

src/CMakeLists.txt

@@ -30,12 +30,14 @@ if (${OPENAL_SOUND})
     if (${MXE})
         set(OPTIONAL_LIBS
             ${CMAKE_FIND_ROOT_PATH}/lib/libOpenAL32.a
-            ${CMAKE_FIND_ROOT_PATH}/lib/libalut.a
+        )
+    elseif (${PLATFORM_WINDOWS})
+        set(OPTIONAL_LIBS
+            OpenAL32
         )
     else()
         set(OPTIONAL_LIBS
             openal
-            alut
         )
     endif()
 endif()
@@ -200,6 +202,7 @@ ${GLEW_LIBRARY}
 ${Boost_LIBRARIES}
 ${OPTIONAL_LIBS}
 ${PLATFORM_LIBS}
+${LIBSNDFILE_LIBRARY}
 )
 
 # Local
@@ -207,6 +210,7 @@ include_directories(
 .
 ..
 ${CMAKE_CURRENT_BINARY_DIR}
+${LIBSNDFILE_INCLUDE_DIR}
 )
 
 # System

src/app/app.cpp

@@ -321,12 +321,19 @@ bool CApplication::Create()
         #endif
 
         m_sound->Create(true);
-        if (GetProfile().GetLocalProfileString("Resources", "Sound", path))
+        if (GetProfile().GetLocalProfileString("Resources", "Sound", path)) {
             m_sound->CacheAll(path);
-        else
+        } else {
             m_sound->CacheAll(GetDataSubdirPath(DIR_SOUND));
         }
         
+        if (GetProfile().GetLocalProfileString("Resources", "Music", path)) {
+            m_sound->AddMusicFiles(path);
+        } else {
+            m_sound->AddMusicFiles(GetDataSubdirPath(DIR_MUSIC));
+        }
+    }
+
     std::string standardInfoMessage =
       "\nPlease see the console output or log file\n"
       "to get more information on the source of error";

src/sound/oalsound/alsound.cpp

@@ -27,7 +27,9 @@ ALSound::ALSound()
     mEnabled = false;
     m3D = false;
     mAudioVolume = 1.0f;
+    mMusicVolume = 1.0f;
     mMute = false;
+    mCurrentMusic = new Channel();
     auto pointer = CInstanceManager::GetInstancePointer();
     if (pointer != nullptr)
         CInstanceManager::GetInstancePointer()->AddInstance(CLASS_SOUND, this);
@@ -58,7 +60,11 @@ void ALSound::CleanUp()
         }
 
         mEnabled = false;
-        alutExit();
+
+        mCurrentMusic->FreeBuffer();
+        delete mCurrentMusic;
+        alcDestroyContext(mContext);
+        alcCloseDevice(mDevice);
     }
 }
 
@@ -71,13 +77,20 @@ bool ALSound::Create(bool b3D)
         return true;
 
     GetLogger()->Info("Opening audio device...\n");
-    if (!alutInit(NULL, NULL)) {
-        ALenum error = alutGetError();
-        GetLogger()->Error("Could not open audio device! Reason: %s\n", alutGetErrorString(error));
+    mDevice = alcOpenDevice(NULL);
+    if (!mDevice) {
+        GetLogger()->Error("Could not open audio device!\n");
         return false;
     }
-    GetLogger()->Info("Done.\n");
 
+    mContext = alcCreateContext(mDevice, NULL);
+    if (!mContext) {
+        GetLogger()->Error("Could not create audio context!\n");
+        return false;
+    }
+    alcMakeContextCurrent(mContext);
+
+    GetLogger()->Info("Done.\n");
     mEnabled = true;
     return true;
 }
@@ -119,28 +132,26 @@ void ALSound::SetAudioVolume(int volume)
 
 int ALSound::GetAudioVolume()
 {
-    float volume;
     if ( !mEnabled )
         return 0;
 
-    alGetListenerf(AL_GAIN, &volume);
-    return volume * MAXVOLUME;
+    return mAudioVolume * MAXVOLUME;
 }
 
 
 void ALSound::SetMusicVolume(int volume)
 {
-    // TODO stub! Add music support
+    alListenerf(AL_GAIN, MIN(static_cast<float>(volume) / MAXVOLUME, 1.0f));
+    mMusicVolume = MIN(static_cast<float>(volume) / MAXVOLUME, 1.0f);
 }
 
 
 int ALSound::GetMusicVolume()
 {
-    // TODO stub! Add music support
     if ( !mEnabled )
-        return 0;
+        return 0.0f;
 
-    return 0;
+    return mMusicVolume * MAXVOLUME;
 }
 
 
@@ -242,8 +253,7 @@ bool ALSound::SearchFreeBuffer(Sound sound, int &channel, bool &bAlreadyLoaded)
         auto it = mChannels.end();
         it--;
         int i = (*it).first;
-        while (++i)
-        {
+        while (++i) {
             if (mChannels.find(i) == mChannels.end()) {
                 Channel *chn = new Channel();
                 // check if channel is ready to play music, if not destroy it and seek free one
@@ -491,32 +501,67 @@ void ALSound::SetListener(Math::Vector eye, Math::Vector lookat)
 
 bool ALSound::PlayMusic(int rank, bool bRepeat)
 {
-    // TODO stub! Add music support
+    if (!mEnabled) {
+        return false;
+    }
+    
+    if (static_cast<int>(mCurrentMusic->GetSoundType()) != rank) {
+        mCurrentMusic->FreeBuffer();
+
+        if (mMusic.find(rank) == mMusic.end()) {
+            GetLogger()->Info("Requested music %d was not found.\n", rank);
+            return false;
+        }
+
+        Buffer *buffer = new Buffer();
+        buffer->LoadFromFile(mMusic.at(rank), static_cast<Sound>(rank));
+        mCurrentMusic->SetBuffer(buffer);
+    }
+    
+    mCurrentMusic->SetVolume(mMusicVolume);
+    mCurrentMusic->SetLoop(bRepeat);
+    mCurrentMusic->Play();
+    
     return true;
 }
 
 
 bool ALSound::RestartMusic()
 {
-    // TODO stub! Add music support
+    if (!mEnabled || !mCurrentMusic) {
+        return false;
+    }
+
+    mCurrentMusic->Stop();
+    mCurrentMusic->Play();
     return true;
 }
 
 void ALSound::StopMusic()
 {
-    // TODO stub! Add music support
+    if (!mEnabled || !mCurrentMusic) {
+        return;
+    }
+    
     SuspendMusic();
 }
 
 
 bool ALSound::IsPlayingMusic()
 {
-    // TODO stub! Add music support
-    return true;
+    if (!mEnabled || !mCurrentMusic) {
+        return false;
+    }
+    
+    return mCurrentMusic->IsPlaying();
 }
 
 
 void ALSound::SuspendMusic()
 {
-    // TODO stub! Add music support
+    if (!mEnabled || !mCurrentMusic) {
+        return;
+    }
+    
+    mCurrentMusic->Stop();
 }

src/sound/oalsound/alsound.h

@@ -22,7 +22,7 @@
 #include <map>
 #include <string>
 
-#include <AL/alut.h>
+#include <AL/al.h>
 
 #include "common/iman.h"
 #include "common/logger.h"
@@ -87,8 +87,10 @@ class ALSound : public CSoundInterface
         bool m3D;
         bool mMute;
         float mAudioVolume;
-        ALCdevice* audioDevice;
-        ALCcontext* audioContext;
+        float mMusicVolume;
+        ALCdevice* mDevice;
+        ALCcontext* mContext;
         std::map<Sound, Buffer*> mSounds;
         std::map<int, Channel*> mChannels;
+        Channel *mCurrentMusic;
 };

src/sound/oalsound/buffer.cpp

@@ -35,26 +35,43 @@ Buffer::~Buffer() {
 
 bool Buffer::LoadFromFile(std::string filename, Sound sound) {
     mSound = sound;
-
     GetLogger()->Debug("Loading audio file: %s\n", filename.c_str());
-    mBuffer = alutCreateBufferFromFile(filename.c_str());
 
-    ALenum error = alutGetError();
-    if (error) {
-        GetLogger()->Warn("Failed to load file. Reason: %s\n", alutGetErrorString(error));
+    SF_INFO fileInfo;
+    SNDFILE *file = sf_open(filename.c_str(), SFM_READ, &fileInfo);
+
+    GetLogger()->Trace("  channels %d\n", fileInfo.channels);
+    GetLogger()->Trace("  format %d\n", fileInfo.format);
+    GetLogger()->Trace("  frames %d\n", fileInfo.frames);
+    GetLogger()->Trace("  samplerate %d\n", fileInfo.samplerate);
+    GetLogger()->Trace("  sections %d\n", fileInfo.sections);
+
+    if (!file) {
+        GetLogger()->Warn("Could not load file. Reason: %s\n", sf_strerror(file));
         mLoaded = false;
         return false;
     }
 
-    ALint size, bits, channels, freq;
+    alGenBuffers(1, &mBuffer);
+    if (!mBuffer) {
+        GetLogger()->Warn("Could not create audio buffer\n");
+        mLoaded = false;
+        sf_close(file);
+        return false;
+    }
 
-    alGetBufferi(mBuffer, AL_SIZE, &size);
-    alGetBufferi(mBuffer, AL_BITS, &bits);
-    alGetBufferi(mBuffer, AL_CHANNELS, &channels);
-    alGetBufferi(mBuffer, AL_FREQUENCY, &freq);
-
-    mDuration =  static_cast<ALfloat>(size) * 8 / channels / bits / static_cast<ALfloat>(freq);
+    // read chunks of 4096 samples
+    std::vector<uint16_t> data;
+    std::array<int16_t, 4096> buffer;
+    data.reserve(fileInfo.frames);
+    size_t read = 0;
+    while ((read = sf_read_short(file, buffer.data(), buffer.size())) != 0) {
+        data.insert(data.end(), buffer.begin(), buffer.begin() + read);
+    }
+    sf_close(file);   
 
+    alBufferData(mBuffer, fileInfo.channels == 1 ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16, &data.front(), data.size() * sizeof(uint16_t), fileInfo.samplerate);
+    mDuration = static_cast<float>(fileInfo.frames) / fileInfo.samplerate;
     mLoaded = true;
     return true;
 }

src/sound/oalsound/buffer.h

@@ -19,8 +19,11 @@
 #pragma once
 
 #include <string>
+#include <vector>
+#include <array>
 
-#include <AL/alut.h>
+#include <AL/al.h>
+#include <sndfile.h>
 
 #include "sound/sound.h"
 #include "common/logger.h"

src/sound/oalsound/channel.cpp

@@ -34,6 +34,9 @@ Channel::Channel() {
     mBuffer = nullptr;
     mLoop = false;
     mInitFrequency = 0.0f;
+    mStartAmplitude = 0.0f;
+    mStartFrequency = 0.0f;
+    mChangeFrequency = 0.0f;
 }
 
 
@@ -237,6 +240,22 @@ bool Channel::SetBuffer(Buffer *buffer) {
 }
 
 
+bool Channel::FreeBuffer() {
+    if (!mReady)
+        return false;
+    
+    if (!mBuffer) {
+        return false;
+    }
+
+    alSourceStop(mSource);
+    alSourcei(mSource, AL_BUFFER, 0);
+    delete mBuffer;
+    mBuffer = nullptr;
+    return true;
+}
+
+
 bool Channel::IsPlaying() {
     ALint status;
     if (!mReady || mBuffer == nullptr)

src/sound/oalsound/channel.h

@@ -65,6 +65,8 @@ class Channel
         bool IsLoaded();
 
         bool SetBuffer(Buffer *);
+        bool FreeBuffer();
+        
         bool HasEnvelope();
         SoundOper& GetEnvelope();
         void PopEnvelope();

src/sound/sound.h

@@ -22,6 +22,7 @@
 
 #pragma once
 
+#include <boost/filesystem.hpp>
 
 #include "math/vector.h"
 
@@ -32,6 +33,7 @@
 #include <iostream>
 #include <iomanip>
 #include <sstream>
+#include <map>
 
 
 /*!
@@ -177,6 +179,16 @@ class CSoundInterface
         }
     };
 
+    /** Function called to add all music files to list */
+    inline void AddMusicFiles(std::string path) {
+        for ( int i = 1; i <= 12; i++ ) {
+            std::stringstream filename;
+            filename << path << "/music" << std::setfill('0') << std::setw(3) << i << ".ogg";
+            if (boost::filesystem::exists(filename.str()))
+                mMusic[i] = filename.str();
+        }
+    };
+    
     /** Function called to cache sound effect file.
      *  This function is called by plugin interface for each file.
      * \param bSound - id of a file, will be used to identify sound files
@@ -328,5 +340,8 @@ class CSoundInterface
      * \return return true if music is playing
      */
     inline virtual bool IsPlayingMusic() {return true;};
+
+    protected:
+        std::map<int, std::string> mMusic;
 };
 

src/ui/maindialog.cpp

@@ -5458,10 +5458,8 @@ void CMainDialog::ChangeSetupButtons()
     ps = static_cast<CSlider*>(pw->SearchControl(EVENT_INTERFACE_VOLMUSIC));
     if ( ps != 0 )
     {
-        /*
-        TODO: midi volume
         value = ps->GetVisibleValue();
-        m_sound->SetMidiVolume((int)value);*/
+        m_sound->SetMusicVolume(static_cast<int>(value));
     }
 }