OPAL_SOUND_MGR bool SoundManager::loadAudio( std::string filename, unsigned int *audioId,
bool loop )
{
if ( filename.empty() || filename.length() > MAX_FILENAME_LENGTH )
return false;
if ( mAudioSourcesInUseCount == MAX_AUDIO_SOURCES )
return false; // out of Audio Source slots!
int bufferID = -1; // Identity of the Sound Buffer to use
int sourceID = -1; // Identity of the Source Buffer to use
alGetError(); // Clear Error Code
// Check and see if the pSoundFile is already loaded into a buffer
bufferID = locateAudioBuffer( filename );
if ( bufferID < 0 )
{
// The sound file isn't loaded in a buffer, lets attempt to load it on the fly
bufferID = loadAudioInToSystem( filename );
if ( bufferID < 0 ) return false; // failed!
}
// If you are here, the sound the requester wants to reference is in a buffer.
// Now, we need to find a free Audio Source slot in the sound system
sourceID = 0;
while ( mAudioSourceInUse[ sourceID ] == true ) sourceID++;
// When you are here, 'mSourceID' now represents a free Audio Source slot
// The free slot may not be at the end of the array but in the middle of it.
*audioId = sourceID; // return the Audio Source ID to the caller
mAudioSourceInUse[ sourceID ] = true; // mark this Source slot as in use
mAudioSourcesInUseCount++; // bump the 'in use' counter
// Now inform OpenAL of the sound assignment and attach the audio buffer
// to the audio source
alSourcei( mAudioSources[sourceID], AL_BUFFER, mAudioBuffers[bufferID] );
// Steven : Not in the original code !!!!!
alSourcei( mAudioSources[sourceID], AL_LOOPING, loop );
if ( checkALError( "loadSource()::alSourcei" ) )
return false;
return true;
}
bool SoundManager::loadDefaultSounds( std::string filename )
{
FILE *myfile;
unsigned linecount=0;
char key[255], buff[512];
if ( (myfile = fopen( filename.c_str() ,"r") )==NULL )
{
sprintf(buff, "---> Can't Open File: %s\n", filename.c_str() );
printf( "SoundManager::loadDefaultSounds : %s\n", buff );
return false;
}
fseek(myfile,0L,SEEK_SET); // Make sure we are at the begining of the file
while (!feof(myfile))
{
fgets(buff,sizeof(buff),myfile); // Read a line from the file.
linecount++;
if (strncmp(buff,"#",1) && // Is this a comment line?
strncmp(buff,"",1) &&
strncmp(buff,"/",1))
{
// We have some data, attempt to load it
strcpy(key,buff);
trimTrailingSpace(key);
// First, make sure it isn't already loaded
if ( locateAudioBuffer( key ) < 0 )
{
// Nope, its not already loaded
if ( loadAudioInToSystem( key ) < 0 )
{
sprintf(buff,"Can't load audio file: %s\n",key);
printf( "SoundManager::loadDefaultSounds() : %s\n", buff );
}
}
}
}
// Were done
fclose(myfile);
return true;
}