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-rw-r--r--cmake/Modules/FindVorbis.cmake45
-rw-r--r--src/CMakeLists.txt34
-rw-r--r--src/client.cpp5
-rw-r--r--src/client.h1
-rw-r--r--src/game.cpp1
-rw-r--r--src/gamedef.h4
-rw-r--r--src/server.cpp5
-rw-r--r--src/server.h1
-rw-r--r--src/sound.cpp25
-rw-r--r--src/sound.h77
-rw-r--r--src/sound_openal.cpp322
-rw-r--r--src/sound_openal.h28
12 files changed, 548 insertions, 0 deletions
diff --git a/cmake/Modules/FindVorbis.cmake b/cmake/Modules/FindVorbis.cmake
new file mode 100644
index 000000000..e0cb2c1ac
--- /dev/null
+++ b/cmake/Modules/FindVorbis.cmake
@@ -0,0 +1,45 @@
+# - Find vorbis
+# Find the native vorbis includes and libraries
+#
+# VORBIS_INCLUDE_DIR - where to find vorbis.h, etc.
+# VORBIS_LIBRARIES - List of libraries when using vorbis(file).
+# VORBIS_FOUND - True if vorbis found.
+
+if(NOT GP2XWIZ)
+ if(VORBIS_INCLUDE_DIR)
+ # Already in cache, be silent
+ set(VORBIS_FIND_QUIETLY TRUE)
+ endif(VORBIS_INCLUDE_DIR)
+ find_path(OGG_INCLUDE_DIR ogg/ogg.h)
+ find_path(VORBIS_INCLUDE_DIR vorbis/vorbisfile.h)
+ # MSVC built ogg/vorbis may be named ogg_static and vorbis_static
+ find_library(OGG_LIBRARY NAMES ogg ogg_static)
+ find_library(VORBIS_LIBRARY NAMES vorbis vorbis_static)
+ find_library(VORBISFILE_LIBRARY NAMES vorbisfile vorbisfile_static)
+ # Handle the QUIETLY and REQUIRED arguments and set VORBIS_FOUND
+ # to TRUE if all listed variables are TRUE.
+ include(FindPackageHandleStandardArgs)
+ find_package_handle_standard_args(VORBIS DEFAULT_MSG
+ OGG_INCLUDE_DIR VORBIS_INCLUDE_DIR
+ OGG_LIBRARY VORBIS_LIBRARY VORBISFILE_LIBRARY)
+else(NOT GP2XWIZ)
+ find_path(VORBIS_INCLUDE_DIR tremor/ivorbisfile.h)
+ find_library(VORBIS_LIBRARY NAMES vorbis_dec)
+ find_package_handle_standard_args(VORBIS DEFAULT_MSG
+ VORBIS_INCLUDE_DIR VORBIS_LIBRARY)
+endif(NOT GP2XWIZ)
+
+if(VORBIS_FOUND)
+ if(NOT GP2XWIZ)
+ set(VORBIS_LIBRARIES ${VORBISFILE_LIBRARY} ${VORBIS_LIBRARY}
+ ${OGG_LIBRARY})
+ else(NOT GP2XWIZ)
+ set(VORBIS_LIBRARIES ${VORBIS_LIBRARY})
+ endif(NOT GP2XWIZ)
+else(VORBIS_FOUND)
+ set(VORBIS_LIBRARIES)
+endif(VORBIS_FOUND)
+
+mark_as_advanced(OGG_INCLUDE_DIR VORBIS_INCLUDE_DIR)
+mark_as_advanced(OGG_LIBRARY VORBIS_LIBRARY VORBISFILE_LIBRARY)
+
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index b8f0341f0..b8eb9b4e3 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -29,6 +29,37 @@ else(GETTEXT_FOUND AND ENABLE_GETTEXT)
message(STATUS "GetText disabled")
endif(GETTEXT_FOUND AND ENABLE_GETTEXT)
+# user visible option to enable/disable audio
+OPTION(ENABLE_AUDIO "Enable audio" ON)
+
+# this is only set to 1 if audio is enabled _and_ available
+set(USE_AUDIO 0)
+
+if(ENABLE_AUDIO)
+ # Sound libraries
+ find_package(OpenAL)
+ if (OPENAL_FOUND)
+ find_package(Vorbis)
+ if (VORBIS_FOUND)
+ set(USE_AUDIO 1)
+ set(audio_SRCS sound.cpp sound_openal.cpp)
+ set(AUDIO_INCLUDE_DIRS
+ ${OPENAL_INCLUDE_DIR}
+ ${VORBIS_INCLUDE_DIR}
+ )
+ set(AUDIO_LIBRARIES
+ ${OPENAL_LIBRARY}
+ ${VORBIS_LIBRARIES}
+ )
+ message(STATUS "Sound enabled")
+ else(VORBIS_FOUND)
+ message(FATAL_ERROR "Sound enabled, but Vorbis libraries not found!")
+ endif(VORBIS_FOUND)
+ else(OPENAL_FOUND)
+ message(FATAL_ERROR "Sound enabled, but OpenAL not found!")
+ endif(OPENAL_FOUND)
+endif(ENABLE_AUDIO)
+
if(NOT MSVC)
set(USE_GPROF 0 CACHE BOOL "Use -pg flag for g++")
endif()
@@ -159,6 +190,7 @@ endif()
# Client sources
set(minetest_SRCS
${common_SRCS}
+ ${audio_SRCS}
sky.cpp
clientmap.cpp
content_cso.cpp
@@ -202,6 +234,7 @@ include_directories(
${CMAKE_BUILD_TYPE}
${PNG_INCLUDE_DIR}
${GETTEXT_INCLUDE_DIR}
+ ${AUDIO_INLCUDE_DIR}
${JTHREAD_INCLUDE_DIR}
${SQLITE3_INCLUDE_DIR}
${LUA_INCLUDE_DIR}
@@ -221,6 +254,7 @@ if(BUILD_CLIENT)
${PNG_LIBRARIES}
${X11_LIBRARIES}
${GETTEXT_LIBRARY}
+ ${AUDIO_LIBRARIES}
${JTHREAD_LIBRARY}
${SQLITE3_LIBRARY}
${LUA_LIBRARY}
diff --git a/src/client.cpp b/src/client.cpp
index f446200a3..220fd04dd 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -38,6 +38,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "sha1.h"
#include "base64.h"
#include "clientmap.h"
+#include "sound.h"
static std::string getTextureCacheDir()
{
@@ -2323,4 +2324,8 @@ u16 Client::allocateUnknownNodeId(const std::string &name)
assert(0);
return CONTENT_IGNORE;
}
+ISoundManager* Client::getSoundManager()
+{
+ return &dummySoundManager;
+}
diff --git a/src/client.h b/src/client.h
index 1903f3aa7..6063631da 100644
--- a/src/client.h
+++ b/src/client.h
@@ -306,6 +306,7 @@ public:
virtual ICraftDefManager* getCraftDefManager();
virtual ITextureSource* getTextureSource();
virtual u16 allocateUnknownNodeId(const std::string &name);
+ virtual ISoundManager* getSoundManager();
private:
diff --git a/src/game.cpp b/src/game.cpp
index 3e9f448d3..35a0e2533 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -55,6 +55,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "quicktune_shortcutter.h"
#include "clientmap.h"
#include "sky.h"
+#include "sound.h"
#include <list>
/*
diff --git a/src/gamedef.h b/src/gamedef.h
index 10ab0b0bc..91bcc0e65 100644
--- a/src/gamedef.h
+++ b/src/gamedef.h
@@ -27,6 +27,7 @@ class IItemDefManager;
class INodeDefManager;
class ICraftDefManager;
class ITextureSource;
+class ISoundManager;
/*
An interface for fetching game-global definitions like tool and
@@ -46,6 +47,8 @@ public:
// pointers in other threads than main thread will make things explode.
virtual ITextureSource* getTextureSource()=0;
+ virtual ISoundManager* getSoundManager()=0;
+
// Used for keeping track of names/ids of unknown nodes
virtual u16 allocateUnknownNodeId(const std::string &name)=0;
@@ -54,6 +57,7 @@ public:
INodeDefManager* ndef(){return getNodeDefManager();}
ICraftDefManager* cdef(){return getCraftDefManager();}
ITextureSource* tsrc(){return getTextureSource();}
+ ISoundManager* sound(){return getSoundManager();}
};
#endif
diff --git a/src/server.cpp b/src/server.cpp
index 7afb22846..d762f2688 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -49,6 +49,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "base64.h"
#include "tool.h"
#include "utility_string.h"
+#include "sound.h" // dummySoundManager
#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
@@ -4270,6 +4271,10 @@ u16 Server::allocateUnknownNodeId(const std::string &name)
{
return m_nodedef->allocateDummy(name);
}
+ISoundManager* Server::getSoundManager()
+{
+ return &dummySoundManager;
+}
IWritableItemDefManager* Server::getWritableItemDefManager()
{
diff --git a/src/server.h b/src/server.h
index 328c7fb9c..cdedd06d8 100644
--- a/src/server.h
+++ b/src/server.h
@@ -513,6 +513,7 @@ public:
virtual ICraftDefManager* getCraftDefManager();
virtual ITextureSource* getTextureSource();
virtual u16 allocateUnknownNodeId(const std::string &name);
+ virtual ISoundManager* getSoundManager();
IWritableItemDefManager* getWritableItemDefManager();
IWritableNodeDefManager* getWritableNodeDefManager();
diff --git a/src/sound.cpp b/src/sound.cpp
new file mode 100644
index 000000000..fe8da73b3
--- /dev/null
+++ b/src/sound.cpp
@@ -0,0 +1,25 @@
+/*
+Minetest-c55
+Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "sound.h"
+
+// Global DummySoundManager singleton
+DummySoundManager dummySoundManager;
+
+
diff --git a/src/sound.h b/src/sound.h
new file mode 100644
index 000000000..6b20bbd32
--- /dev/null
+++ b/src/sound.h
@@ -0,0 +1,77 @@
+/*
+Minetest-c55
+Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef SOUND_HEADER
+#define SOUND_HEADER
+
+#include "irrlichttypes.h"
+#include <string>
+#include <vector>
+#include <set>
+
+class OnDemandSoundFetcher
+{
+public:
+ virtual void getSoundFilenames(const std::string &name,
+ std::set<std::string> &dst);
+};
+
+class ISoundManager
+{
+public:
+ virtual ~ISoundManager(){}
+
+ // Multiple sounds can be loaded per name; when played, the sound
+ // should be chosen randomly from alternatives
+ // Return value determines success/failure
+ virtual bool loadSound(const std::string &name,
+ const std::string &filepath) = 0;
+ virtual bool loadSound(const std::string &name,
+ const std::vector<char> &filedata) = 0;
+
+ virtual void updateListener(v3f pos, v3f vel, v3f at, v3f up) = 0;
+ // playSound functions return -1 on failure, otherwise a handle to the
+ // sound
+ virtual int playSound(const std::string &name, int loopcount,
+ float volume) = 0;
+ virtual int playSoundAt(const std::string &name, int loopcount,
+ v3f pos, float volume) = 0;
+ virtual void stopSound(int sound) = 0;
+};
+
+class DummySoundManager: public ISoundManager
+{
+public:
+ virtual bool loadSound(const std::string &name,
+ const std::string &filepath) {return true;}
+ virtual bool loadSound(const std::string &name,
+ const std::vector<char> &filedata) {return true;}
+ void updateListener(v3f pos, v3f vel, v3f at, v3f up) {}
+ int playSound(const std::string &name, int loopcount,
+ float volume) {return 0;}
+ int playSoundAt(const std::string &name, int loopcount,
+ v3f pos, float volume) {return 0;}
+ void stopSound(int sound) {}
+};
+
+// Global DummySoundManager singleton
+extern DummySoundManager dummySoundManager;
+
+#endif
+
diff --git a/src/sound_openal.cpp b/src/sound_openal.cpp
new file mode 100644
index 000000000..9566f95c2
--- /dev/null
+++ b/src/sound_openal.cpp
@@ -0,0 +1,322 @@
+/*
+Minetest-c55
+Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+OpenAL support based on work by:
+Copyright (C) 2011 Sebastian 'Bahamada' Rühl
+Copyright (C) 2011 Cyriaque 'Cisoun' Skrapits <cysoun@gmail.com>
+Copyright (C) 2011 Giuseppe Bilotta <giuseppe.bilotta@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; ifnot, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "sound_openal.h"
+
+#if defined(_MSC_VER)
+ #include <al.h>
+ #include <alc.h>
+ #include <alext.h>
+#elif defined(__APPLE__)
+ #include <OpenAL/al.h>
+ #include <OpenAL/alc.h>
+ #include <OpenAL/alext.h>
+#else
+ #include <AL/al.h>
+ #include <AL/alc.h>
+ #include <AL/alext.h>
+#endif
+#include <vorbis/vorbisfile.h>
+#include "log.h"
+#include <map>
+#include <vector>
+#include "utility.h" // myrand()
+
+#define BUFFER_SIZE 30000
+
+static const char *alcErrorString(ALCenum err)
+{
+ switch (err) {
+ case ALC_NO_ERROR:
+ return "no error";
+ case ALC_INVALID_DEVICE:
+ return "invalid device";
+ case ALC_INVALID_CONTEXT:
+ return "invalid context";
+ case ALC_INVALID_ENUM:
+ return "invalid enum";
+ case ALC_INVALID_VALUE:
+ return "invalid value";
+ case ALC_OUT_OF_MEMORY:
+ return "out of memory";
+ default:
+ return "<unknown OpenAL error>";
+ }
+}
+
+static const char *alErrorString(ALenum err)
+{
+ switch (err) {
+ case AL_NO_ERROR:
+ return "no error";
+ case AL_INVALID_NAME:
+ return "invalid name";
+ case AL_INVALID_ENUM:
+ return "invalid enum";
+ case AL_INVALID_VALUE:
+ return "invalid value";
+ case AL_INVALID_OPERATION:
+ return "invalid operation";
+ case AL_OUT_OF_MEMORY:
+ return "out of memory";
+ default:
+ return "<unknown OpenAL error>";
+ }
+}
+
+void f3_set(ALfloat *f3, v3f v)
+{
+ f3[0] = v.X;
+ f3[1] = v.Y;
+ f3[2] = v.Z;
+}
+
+struct SoundBuffer
+{
+ ALenum format;
+ ALsizei freq;
+ ALuint bufferID;
+ std::vector<char> buffer;
+};
+
+SoundBuffer* loadOggFile(const std::string &filepath)
+{
+ int endian = 0; // 0 for Little-Endian, 1 for Big-Endian
+ int bitStream;
+ long bytes;
+ char array[BUFFER_SIZE]; // Local fixed size array
+ vorbis_info *pInfo;
+ OggVorbis_File oggFile;
+
+ // Try opening the given file
+ if(ov_fopen(filepath.c_str(), &oggFile) != 0)
+ {
+ infostream<<"Audio: Error opening "<<filepath<<" for decoding"<<std::endl;
+ return NULL;
+ }
+
+ SoundBuffer *snd = new SoundBuffer;
+
+ // Get some information about the OGG file
+ pInfo = ov_info(&oggFile, -1);
+
+ // Check the number of channels... always use 16-bit samples
+ if(pInfo->channels == 1)
+ snd->format = AL_FORMAT_MONO16;
+ else
+ snd->format = AL_FORMAT_STEREO16;
+
+ // The frequency of the sampling rate
+ snd->freq = pInfo->rate;
+
+ // Keep reading until all is read
+ do
+ {
+ // Read up to a buffer's worth of decoded sound data
+ bytes = ov_read(&oggFile, array, BUFFER_SIZE, endian, 2, 1, &bitStream);
+
+ if(bytes < 0)
+ {
+ ov_clear(&oggFile);
+ infostream<<"Audio: Error decoding "<<filepath<<std::endl;
+ return NULL;
+ }
+
+ // Append to end of buffer
+ snd->buffer.insert(snd->buffer.end(), array, array + bytes);
+ } while (bytes > 0);
+
+ alGenBuffers(1, &snd->bufferID);
+ alBufferData(snd->bufferID, snd->format,
+ &(snd->buffer[0]), snd->buffer.size(),
+ snd->freq);
+
+ ALenum error = alGetError();
+
+ if(error != AL_NO_ERROR){
+ infostream<<"Audio: OpenAL error: "<<alErrorString(error)
+ <<"preparing sound buffer"<<std::endl;
+ }
+
+ infostream<<"Audio file "<<filepath<<" loaded"<<std::endl;
+
+ // Clean up!
+ ov_clear(&oggFile);
+
+ return snd;
+}
+
+struct PlayingSound
+{
+};
+
+class OpenALSoundManager: public ISoundManager
+{
+private:
+ ALCdevice *m_device;
+ ALCcontext *m_context;
+ bool m_can_vorbis;
+ int m_next_id;
+ std::map<std::string, std::vector<SoundBuffer*> > m_buffers;
+ std::map<int, PlayingSound*> m_sounds_playing;
+public:
+ OpenALSoundManager():
+ m_device(NULL),
+ m_context(NULL),
+ m_can_vorbis(false),
+ m_next_id(1)
+ {
+ ALCenum error = ALC_NO_ERROR;
+
+ infostream<<"Audio: Initializing..."<<std::endl;
+
+ m_device = alcOpenDevice(NULL);
+ if(!m_device){
+ infostream<<"Audio: No audio device available, audio system "
+ <<"not initialized"<<std::endl;
+ return;
+ }
+
+ if(alcIsExtensionPresent(m_device, "EXT_vorbis")){
+ infostream<<"Audio: Vorbis extension present"<<std::endl;
+ m_can_vorbis = true;
+ } else{
+ infostream<<"Audio: Vorbis extension NOT present"<<std::endl;
+ m_can_vorbis = false;
+ }
+
+ m_context = alcCreateContext(m_device, NULL);
+ if(!m_context){
+ error = alcGetError(m_device);
+ infostream<<"Audio: Unable to initialize audio context, "
+ <<"aborting audio initialization ("<<alcErrorString(error)
+ <<")"<<std::endl;
+ alcCloseDevice(m_device);
+ m_device = NULL;
+ return;
+ }
+
+ if(!alcMakeContextCurrent(m_context) ||
+ (error = alcGetError(m_device) != ALC_NO_ERROR))
+ {
+ infostream<<"Audio: Error setting audio context, aborting audio "
+ <<"initialization ("<<alcErrorString(error)<<")"<<std::endl;
+ alcDestroyContext(m_context);
+ m_context = NULL;
+ alcCloseDevice(m_device);
+ m_device = NULL;
+ return;
+ }
+
+ alDistanceModel(AL_EXPONENT_DISTANCE);
+
+ infostream<<"Audio: Initialized: OpenAL "<<alGetString(AL_VERSION)
+ <<", using "<<alcGetString(m_device, ALC_DEVICE_SPECIFIER)
+ <<std::endl;
+ }
+
+ ~OpenALSoundManager()
+ {
+ infostream<<"Audio: Deinitializing..."<<std::endl;
+ // KABOOM!
+ // TODO: Clear SoundBuffers
+ alcMakeContextCurrent(NULL);
+ alcDestroyContext(m_context);
+ m_context = NULL;
+ alcCloseDevice(m_device);
+ m_device = NULL;
+ infostream<<"Audio: Deinitialized."<<std::endl;
+ }
+
+ void addBuffer(const std::string &name, SoundBuffer *buf)
+ {
+ std::map<std::string, std::vector<SoundBuffer*> >::iterator i =
+ m_buffers.find(name);
+ if(i != m_buffers.end()){
+ i->second.push_back(buf);
+ return;
+ }
+ std::vector<SoundBuffer*> bufs;
+ bufs.push_back(buf);
+ return;
+ }
+
+ SoundBuffer* getBuffer(const std::string &name)
+ {
+ std::map<std::string, std::vector<SoundBuffer*> >::iterator i =
+ m_buffers.find(name);
+ if(i == m_buffers.end())
+ return NULL;
+ std::vector<SoundBuffer*> &bufs = i->second;
+ int j = myrand() % bufs.size();
+ return bufs[j];
+ }
+
+ void updateListener(v3f pos, v3f vel, v3f at, v3f up)
+ {
+ ALfloat f[6];
+ f3_set(f, pos);
+ alListenerfv(AL_POSITION, f);
+ f3_set(f, vel);
+ alListenerfv(AL_VELOCITY, f);
+ f3_set(f, at);
+ f3_set(f+3, up);
+ alListenerfv(AL_ORIENTATION, f);
+ }
+
+ bool loadSound(const std::string &name,
+ const std::string &filepath)
+ {
+ SoundBuffer *buf = loadOggFile(filepath);
+ if(buf)
+ addBuffer(name, buf);
+ return false;
+ }
+ bool loadSound(const std::string &name,
+ const std::vector<char> &filedata)
+ {
+ errorstream<<"OpenALSoundManager: Loading from filedata not"
+ " implemented"<<std::endl;
+ return false;
+ }
+
+ int playSound(const std::string &name, int loopcount,
+ float volume)
+ {
+ return -1;
+ }
+ int playSoundAt(const std::string &name, int loopcount,
+ v3f pos, float volume)
+ {
+ return -1;
+ }
+ void stopSound(int sound)
+ {
+ }
+};
+
+ISoundManager *createSoundManager()
+{
+ return new OpenALSoundManager();
+};
+
diff --git a/src/sound_openal.h b/src/sound_openal.h
new file mode 100644
index 000000000..de1ca3056
--- /dev/null
+++ b/src/sound_openal.h
@@ -0,0 +1,28 @@
+/*
+Minetest-c55
+Copyright (C) 2012 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef SOUND_OPENAL_HEADER
+#define SOUND_OPENAL_HEADER
+
+#include "sound.h"
+
+ISoundManager *createOpenALSoundManager();
+
+#endif
+
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