fix

[supertux.git] / src / audio / sound_manager.cpp

diff --git a/src/audio/sound_manager.cpp b/src/audio/sound_manager.cpp
index 34e9a95..12e6200 100644 (file)
--- a/src/audio/sound_manager.cpp
+++ b/src/audio/sound_manager.cpp
@@ -16,6 +16,7 @@
 //  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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+#include <config.h>
 
 #include "sound_manager.hpp"
 
@@ -26,7 +27,9 @@
 
 #include "sound_file.hpp"
 #include "sound_source.hpp"
+#include "openal_sound_source.hpp"
 #include "stream_sound_source.hpp"
+#include "dummy_sound_source.hpp"
 #include "log.hpp"
 #include "timer.hpp"
 
@@ -34,12 +37,11 @@ SoundManager* sound_manager = 0;
 
 SoundManager::SoundManager()
   : device(0), context(0), sound_enabled(false), music_source(0),
-    music_enabled(true)
+    music_enabled(false)
 {
   try {
     device = alcOpenDevice(0);
-    if(device == 0) {
-      print_openal_version();
+    if (device == NULL) {
       throw std::runtime_error("Couldn't open audio device.");
     }
 
@@ -51,12 +53,16 @@ SoundManager::SoundManager()
 
     check_al_error("Audio error after init: ");
     sound_enabled = true;
+    music_enabled = true;
   } catch(std::exception& e) {
-    device = 0;
-    context = 0;
-    log_warning << "Couldn't initialize audio device:" << e.what() << std::endl;
+    if(context != NULL)
+      alcDestroyContext(context);
+    context = NULL;
+    if(device != NULL)
+      alcCloseDevice(device);
+    device = NULL;
+    log_warning << "Couldn't initialize audio device: " << e.what() << std::endl;
     print_openal_version();
-    throw e;
   }
 }
 
@@ -73,10 +79,10 @@ SoundManager::~SoundManager()
     alDeleteBuffers(1, &buffer);
   }
 
-  if(context != 0) {
+  if(context != NULL) {
     alcDestroyContext(context);
   }
-  if(device != 0) {
+  if(device != NULL) {
     alcCloseDevice(device);
   }
 }
@@ -108,7 +114,7 @@ SoundSource*
 SoundManager::create_sound_source(const std::string& filename)
 {
   if(!sound_enabled)
-    return 0;
+    return create_dummy_sound_source();
 
   ALuint buffer;
   
@@ -117,56 +123,97 @@ SoundManager::create_sound_source(const std::string& filename)
   if(i != buffers.end()) {
     buffer = i->second;
   } else {
-    // Load sound file
-    std::auto_ptr<SoundFile> file (load_sound_file(filename));
-
-    if(file->size < 100000) {
-      buffer = load_file_into_buffer(file.get());
-      buffers.insert(std::make_pair(filename, buffer));
-    } else {
-      StreamSoundSource* source = new StreamSoundSource();
-      source->set_sound_file(file.release());
-      return source;
+    try {
+      // Load sound file
+      std::auto_ptr<SoundFile> file (load_sound_file(filename));
+
+      if(file->size < 100000) {
+        buffer = load_file_into_buffer(file.get());
+        buffers.insert(std::make_pair(filename, buffer));
+      } else {
+        StreamSoundSource* source = new StreamSoundSource();
+        source->set_sound_file(file.release());
+        return source;
+      }
+    } catch(std::exception& e) {
+      log_warning << "Couldn't load soundfile '" << filename << "': " << e.what() << std::endl;
+      return create_dummy_sound_source();
     }
   }
   
-  SoundSource* source = new SoundSource();
+  OpenALSoundSource* source = new OpenALSoundSource();
   alSourcei(source->source, AL_BUFFER, buffer);
   return source;  
 }
 
 void
+SoundManager::preload(const std::string& filename)
+{
+  if(!sound_enabled)
+    return;
+  
+  SoundBuffers::iterator i = buffers.find(filename);
+  // already loaded?
+  if(i != buffers.end())
+    return;
+
+  std::auto_ptr<SoundFile> file (load_sound_file(filename));
+  // only keep small files
+  if(file->size >= 100000)
+    return;
+
+  ALuint buffer = load_file_into_buffer(file.get());
+  buffers.insert(std::make_pair(filename, buffer));
+}
+
+void
 SoundManager::play(const std::string& filename, const Vector& pos)
 {
+  if(!sound_enabled)
+    return;
+  
   try {
-    SoundSource* source = create_sound_source(filename);
-    if(source == 0)
-      return;
+    std::auto_ptr<OpenALSoundSource> source 
+      (static_cast<OpenALSoundSource*> (create_sound_source(filename)));
+    
     if(pos == Vector(-1, -1)) {
-      alSourcef(source->source, AL_ROLLOFF_FACTOR, 0);
+      source->set_rollof_factor(0);
     } else {
       source->set_position(pos);
     }
     source->play();
-    sources.push_back(source);
+    sources.push_back(source.release());
   } catch(std::exception& e) {
     log_warning << "Couldn't play sound " << filename << ": " << e.what() << std::endl;
   }
 }
 
 void
+SoundManager::manage_source(SoundSource* source)
+{
+  assert(source != NULL);
+  
+  OpenALSoundSource* openal_source = dynamic_cast<OpenALSoundSource*> (source);
+  if(openal_source != NULL) {
+    sources.push_back(openal_source);
+  }
+}
+
+void
 SoundManager::enable_sound(bool enable)
 {
-  if(device == 0)
+  if(device == NULL)
     return;
+
   sound_enabled = enable;
 }
 
 void
 SoundManager::enable_music(bool enable)
 {
-  if(device == 0)
+  if(device == NULL)
     return;
+
   music_enabled = enable;
   if(music_enabled) {
     play_music(current_music);
@@ -187,7 +234,7 @@ SoundManager::stop_music(float fadetime)
       music_source->set_fading(StreamSoundSource::FadingOff, fadetime);
   } else {
     delete music_source;
-    music_source = 0;
+    music_source = NULL;
   }
   current_music = "";
 }
@@ -203,7 +250,7 @@ SoundManager::play_music(const std::string& filename, bool fade)
 
   if(filename == "") {
     delete music_source;
-    music_source = 0;
+    music_source = NULL;
     return;
   }
 
@@ -253,7 +300,7 @@ SoundManager::update()
 
   // update and check for finished sound sources
   for(SoundSources::iterator i = sources.begin(); i != sources.end(); ) {
-    SoundSource* source = *i;
+    OpenALSoundSource* source = *i;
 
     source->update();
     
@@ -268,9 +315,12 @@ SoundManager::update()
   if(music_source) {
     music_source->update();
   }
-  
-  alcProcessContext(context);
-  check_alc_error("Error while processing audio context: ");
+
+  if (context)
+  {
+    alcProcessContext(context);
+    check_alc_error("Error while processing audio context: ");
+  }
 }
 
 ALenum