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godot/servers/spatial_sound/spatial_sound_server_sw.h
Juan Linietsky 0b806ee0fc GODOT IS OPEN SOURCE
2014-02-09 22:10:30 -03:00

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/*************************************************/
/* spatial_sound_server_sw.h */
/*************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/*************************************************/
/* Source code within this file is: */
/* (c) 2007-2010 Juan Linietsky, Ariel Manzur */
/* All Rights Reserved. */
/*************************************************/
#ifndef SPATIAL_SOUND_SERVER_SW_H
#define SPATIAL_SOUND_SERVER_SW_H
#include "servers/spatial_sound_server.h"
#include "octree.h"
#include "os/thread_safe.h"
class SpatialSoundServerSW : public SpatialSoundServer {
OBJ_TYPE(SpatialSoundServerSW,SpatialSoundServer);
_THREAD_SAFE_CLASS_
enum {
MAX_CULL_ROOMS=128,
INTERNAL_BUFFER_SIZE=4096,
INTERNAL_BUFFER_MAX_CHANNELS=4,
VOICE_IS_STREAM=-1
};
struct InternalAudioStream : public AudioServer::AudioStream {
::SpatialSoundServerSW *owner;
virtual int get_channel_count() const;
virtual void set_mix_rate(int p_rate); //notify the stream of the mix rate
virtual bool mix(int32_t *p_buffer,int p_frames);
virtual void update();
};
InternalAudioStream *internal_audio_stream;
RID internal_audio_stream_rid;
int32_t *internal_buffer;
int internal_buffer_channels;
bool internal_buffer_mix(int32_t *p_buffer,int p_frames);
struct Room;
struct Space {
RID default_room;
Set<RID> rooms;
Set<RID> sources;
Set<RID> listeners;
Octree<Room> octree;
};
mutable RID_Owner<Space> space_owner;
struct Room {
RID space;
Transform transform;
Transform inverse_transform;
BSP_Tree bounds;
RoomReverb reverb;
float params[ROOM_PARAM_MAX];
bool override_other_sources;
OctreeElementID octree_id;
int level;
Room();
};
mutable RID_Owner<Room> room_owner;
struct Source {
struct Voice {
RID voice_rid;
RID sample_rid;
bool active;
bool restart;
float pitch_scale;
float volume_scale;
int sample_mix_rate;
float last_volume;
float last_filter_gain;
float last_filter_cutoff;
Vector3 last_panning;
int last_mix_rate;
RoomReverb last_reverb_room;
float last_reverb_send;
Voice();
~Voice();
};
struct StreamData {
Vector3 panning;
RoomReverb reverb;
float reverb_send;
float volume;
float filter_gain;
float filter_cutoff;
struct FilterState {
float ha[2];
float hb[2];
} filter_state[4];
StreamData() {
reverb_send=0;
reverb=ROOM_REVERB_HALL;
volume=1.0;
filter_gain=1;
filter_cutoff=5000;
}
} stream_data;
RID space;
Transform transform;
float params[SOURCE_PARAM_MAX];
AudioServer::AudioStream *stream;
Vector<Voice> voices;
int last_voice;
Source();
};
mutable RID_Owner<Source> source_owner;
struct Listener {
RID space;
Transform transform;
float params[LISTENER_PARAM_MAX];
Listener();
};
mutable RID_Owner<Listener> listener_owner;
struct ActiveVoice {
Source *source;
int voice;
bool operator<(const ActiveVoice& p_voice) const { return (voice==p_voice.voice)?(source<p_voice.source):(voice<p_voice.voice); }
ActiveVoice(Source *p_source=NULL,int p_voice=0) { source=p_source; voice=p_voice; }
};
Room *cull_rooms[MAX_CULL_ROOMS];
Set<Source*> streaming_sources;
Set<ActiveVoice> active_voices;
void _clean_up_owner(RID_OwnerBase *p_owner, const char *p_area);
void _update_sources();
public:
/* SPACE */
virtual RID space_create();
/* ROOM */
virtual RID room_create();
virtual void room_set_space(RID p_room,RID p_space);
virtual RID room_get_space(RID p_room) const;
virtual void room_set_bounds(RID p_room, const BSP_Tree& p_bounds);
virtual BSP_Tree room_get_bounds(RID p_room) const;
virtual void room_set_transform(RID p_room, const Transform& p_transform);
virtual Transform room_get_transform(RID p_room) const;
virtual void room_set_param(RID p_room, RoomParam p_param, float p_value);
virtual float room_get_param(RID p_room, RoomParam p_param) const;
virtual void room_set_level(RID p_room, int p_level);
virtual int room_get_level(RID p_room) const;
virtual void room_set_reverb(RID p_room, RoomReverb p_reverb);
virtual RoomReverb room_get_reverb(RID p_room) const;
//useful for underwater or rooms with very strange conditions
virtual void room_set_force_params_to_all_sources(RID p_room, bool p_force);
virtual bool room_is_forcing_params_to_all_sources(RID p_room) const;
/* SOURCE */
virtual RID source_create(RID p_space);
virtual void source_set_polyphony(RID p_source,int p_voice_count);
virtual int source_get_polyphony(RID p_source) const;
virtual void source_set_transform(RID p_source, const Transform& p_transform);
virtual Transform source_get_transform(RID p_source) const;
virtual void source_set_param(RID p_source, SourceParam p_param, float p_value);
virtual float source_get_param(RID p_source, SourceParam p_param) const;
virtual void source_set_audio_stream(RID p_source, AudioServer::AudioStream *p_stream); //null to unset
virtual SourceVoiceID source_play_sample(RID p_source, RID p_sample, int p_mix_rate, int p_voice=SOURCE_NEXT_VOICE);
/* VOICES */
virtual void source_voice_set_pitch_scale(RID p_source, SourceVoiceID p_voice, float p_pitch_scale);
virtual void source_voice_set_volume_scale_db(RID p_source, SourceVoiceID p_voice, float p_volume);
virtual bool source_is_voice_active(RID p_source, SourceVoiceID p_voice) const;
virtual void source_stop_voice(RID p_source, SourceVoiceID p_voice);
/* LISTENER */
virtual RID listener_create();
virtual void listener_set_space(RID p_listener, RID p_space);
virtual void listener_set_transform(RID p_listener, const Transform& p_transform);
virtual Transform listener_get_transform(RID p_listener) const;
virtual void listener_set_param(RID p_listener, ListenerParam p_param, float p_value);
virtual float listener_get_param(RID p_listener, ListenerParam p_param) const;
/* MISC */
virtual void free(RID p_id);
virtual void init();
virtual void update(float p_delta);
virtual void finish();
SpatialSoundServerSW();
};
#endif // SPATIAL_SOUND_SERVER_SW_H
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