void AudioManager::Allocate( const int32_t MaxChannels, const FMOD_INITFLAGS InitFlags, void* ExDriverData )
{
// Create local variables.
size_t GroupIndex = 1;
// Initialize audio system.
if( !Initialized )
{
if( FMOD_System_Create( &SystemInstance ) != FMOD_OK )
throw exception();
if( FMOD_System_Init( SystemInstance, MaxChannels, InitFlags, ExDriverData ) != FMOD_OK )
throw exception();
for( size_t Index = 0; Index < MaxAudioTypes; Index += 2 )
{
AudioMaps[ Index ].Group = AudioMaps[ ( Index + 1 ) ].Group = GroupIndex;
GroupIndex++;
}
if( FMOD_System_GetMasterChannelGroup( SystemInstance, &ChannelGroups[ MasterGroup ].Instance ) != FMOD_OK )
throw exception();
ChannelGroups[ MasterGroup ].Volume = AUDIOMANAGER_DEF_VOLUME;
if( FMOD_ChannelGroup_SetVolume( ChannelGroups[ MasterGroup ].Instance, AUDIOMANAGER_DEF_VOLUME ) != FMOD_OK )
throw exception();
for( size_t Index = 1; Index < MaxChannelGroups; Index++ )
{
if( FMOD_System_CreateChannelGroup( SystemInstance, nullptr, &ChannelGroups[ Index ].Instance ) != FMOD_OK )
throw exception();
ChannelGroups[ Index ].Volume = AUDIOMANAGER_DEF_VOLUME;
if( FMOD_ChannelGroup_SetVolume( ChannelGroups[ Index ].Instance, AUDIOMANAGER_DEF_VOLUME ) != FMOD_OK )
throw exception();
if( FMOD_ChannelGroup_AddGroup( ChannelGroups[ MasterGroup ].Instance, ChannelGroups[ Index ].Instance ) != FMOD_OK )
throw exception();
}
Initialized = true;
}
}
void AudioManager::Load( const AudioManager::AudioType Type,
const string& ID,
const string& Path,
const FMOD_MODE Mode,
FMOD_CREATESOUNDEXINFO* ExInfo )
{
// Create local variables.
FMOD_RESULT FMODResult;
SoundData Sound = { nullptr, nullptr };
// Check arguments.
if( Type == MaxAudioTypes )
throw exception();
// Load the specified audio file and insert it into the appropriate audio map.
if( Initialized )
{
if( AudioMaps[ Type ].Instance.find( ID ) != AudioMaps[ Type ].Instance.end() )
throw exception();
if( !( Type % 2 ) )
FMODResult = FMOD_System_CreateSound( SystemInstance, Path.c_str(), Mode, ExInfo, &Sound.Instance );
else
FMODResult = FMOD_System_CreateStream( SystemInstance, Path.c_str(), Mode, ExInfo, &Sound.Instance );
if( FMODResult != FMOD_OK )
throw exception();
if( FMOD_System_CreateChannelGroup( SystemInstance, nullptr, &Sound.Group ) != FMOD_OK )
throw exception();
if( FMOD_ChannelGroup_AddGroup( ChannelGroups[ AudioMaps[ Type ].Group ].Instance, Sound.Group ) != FMOD_OK )
throw exception();
AudioMaps[ Type ].Instance[ ID ] = Sound;
}
}
int main(int argc, char *argv[])
{
FMOD_SYSTEM *system;
FMOD_SOUND *sound[6];
FMOD_CHANNEL *channel[6];
FMOD_CHANNELGROUP *groupA, *groupB, *masterGroup;
FMOD_RESULT result;
int key, count;
unsigned int version;
/*
Create a System object and initialize.
*/
result = FMOD_System_Create(&system);
ERRCHECK(result);
result = FMOD_System_GetVersion(system, &version);
ERRCHECK(result);
if (version < FMOD_VERSION)
{
printf("Error! You are using an old version of FMOD %08x. This program requires %08x\n", version, FMOD_VERSION);
return 0;
}
result = FMOD_System_Init(system, 32, FMOD_INIT_NORMAL, 0);
ERRCHECK(result);
result = FMOD_System_CreateSound(system, "../media/drumloop.wav", FMOD_LOOP_NORMAL, 0, &sound[0]);
ERRCHECK(result);
result = FMOD_System_CreateSound(system, "../media/jaguar.wav", FMOD_LOOP_NORMAL, 0, &sound[1]);
ERRCHECK(result);
result = FMOD_System_CreateSound(system, "../media/swish.wav", FMOD_LOOP_NORMAL, 0, &sound[2]);
ERRCHECK(result);
result = FMOD_System_CreateSound(system, "../media/c.ogg", FMOD_LOOP_NORMAL, 0, &sound[3]);
ERRCHECK(result);
result = FMOD_System_CreateSound(system, "../media/d.ogg", FMOD_LOOP_NORMAL, 0, &sound[4]);
ERRCHECK(result);
result = FMOD_System_CreateSound(system, "../media/e.ogg", FMOD_LOOP_NORMAL, 0, &sound[5]);
ERRCHECK(result);
result = FMOD_System_CreateChannelGroup(system, "Group A", &groupA);
ERRCHECK(result);
result = FMOD_System_CreateChannelGroup(system, "Group B", &groupB);
ERRCHECK(result);
result = FMOD_System_GetMasterChannelGroup(system, &masterGroup);
ERRCHECK(result);
printf("=======================================================================\n");
printf("ChannelGroups Example. Copyright (c) Firelight Technologies 2004-2011.\n");
printf("=======================================================================\n");
printf("\n");
printf("Group A : drumloop.wav, jaguar.wav, swish.wav\n");
printf("Group B : c.ogg, d.ogg, e.ogg\n");
printf("\n");
printf("Press 'A' to mute/unmute group A\n");
printf("Press 'B' to mute/unmute group B\n");
printf("Press 'C' to mute/unmute group A and B (master group)\n");
printf("Press 'Esc' to quit\n");
printf("\n");
/*
Instead of being independent, set the group A and B to be children of the master group.
*/
result = FMOD_ChannelGroup_AddGroup(masterGroup, groupA);
ERRCHECK(result);
result = FMOD_ChannelGroup_AddGroup(masterGroup, groupB);
ERRCHECK(result);
/*
Start all the sounds!
*/
for (count = 0; count < 6; count++)
{
result = FMOD_System_PlaySound(system, FMOD_CHANNEL_FREE, sound[count], TRUE, &channel[count]);
ERRCHECK(result);
if (count < 3)
{
result = FMOD_Channel_SetChannelGroup(channel[count], groupA);
}
else
{
result = FMOD_Channel_SetChannelGroup(channel[count], groupB);
}
ERRCHECK(result);
result = FMOD_Channel_SetPaused(channel[count], FALSE);
ERRCHECK(result);
}
/*
Change the volume of each group, just because we can! (And makes it less of a loud noise).
*/
result = FMOD_ChannelGroup_SetVolume(groupA, 0.5f);
ERRCHECK(result);
result = FMOD_ChannelGroup_SetVolume(groupB, 0.5f);
ERRCHECK(result);
/*
Main loop.
*/
do
{
if (_kbhit())
{
key = _getch();
switch (key)
{
case 'a' :
case 'A' :
{
static int mute = TRUE;
FMOD_ChannelGroup_SetMute(groupA, mute);
mute = !mute;
break;
}
case 'b' :
case 'B' :
{
static int mute = TRUE;
FMOD_ChannelGroup_SetMute(groupB, mute);
mute = !mute;
break;
}
case 'c' :
case 'C' :
{
static int mute = TRUE;
FMOD_ChannelGroup_SetMute(masterGroup, mute);
mute = !mute;
break;
}
}
}
FMOD_System_Update(system);
{
int channelsplaying = 0;
FMOD_System_GetChannelsPlaying(system, &channelsplaying);
printf("Channels Playing %2d\r", channelsplaying);
}
Sleep(10);
} while (key != 27);
printf("\n");
/*
A little fade out. (over 2 seconds)
*/
printf("Goodbye!\n");
{
float pitch = 1.0f;
float vol = 1.0f;
for (count = 0; count < 200; count++)
{
FMOD_ChannelGroup_SetPitch(masterGroup, pitch);
FMOD_ChannelGroup_SetVolume(masterGroup, vol);
vol -= (1.0f / 200.0f);
pitch -= (0.5f / 200.0f);
Sleep(10);
}
}
/*
Shut down
*/
for (count = 0; count < 6; count++)
{
result = FMOD_Sound_Release(sound[count]);
ERRCHECK(result);
}
result = FMOD_ChannelGroup_Release(groupA);
ERRCHECK(result);
result = FMOD_ChannelGroup_Release(groupB);
ERRCHECK(result);
result = FMOD_System_Close(system);
ERRCHECK(result);
result = FMOD_System_Release(system);
ERRCHECK(result);
return 0;
}
