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godot/scene/resources/gibberish_stream.cpp

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/*************************************************************************/
/* gibberish_stream.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "gibberish_stream.h"
#include "servers/audio_server.h"
//TODO: This class needs to be adapted to the new AudioStream API,
// or dropped if nobody cares about fixing it :) (GH-3307)
#if 0
int AudioStreamGibberish::get_channel_count() const {
return 1;
}
static float _get_vol_at_pos(int p_pos, int p_len, int p_x_fade) {
if (p_pos < p_x_fade)
return float(p_pos)/p_x_fade;
else if (p_pos>(p_len-p_x_fade))
return float(p_len-p_pos)/p_x_fade;
else
return 1.0;
}
int AudioStreamGibberish::randomize() {
if (rand_idx==_rand_pool.size()) {
for(int i=0;i<_rand_pool.size();i++) {
SWAP(_rand_pool[i],_rand_pool[Math::rand()%_rand_pool.size()]);
}
rand_idx=0;
}
return _rand_pool[rand_idx++];
}
bool AudioStreamGibberish::mix(int32_t *p_buffer, int p_frames) {
if (!active)
return false;
zeromem(p_buffer,p_frames*sizeof(int32_t));
if (!paused && active_voices==0) {
active_voices=1;
playback[0].idx=randomize();
playback[0].fp_pos=0;
playback[0].scale=Math::random(1,1+pitch_random_scale);
}
for(int i=0;i<active_voices;i++) {
RID s = _samples[playback[i].idx]->get_rid();
uint64_t fp_pos=playback[i].fp_pos;
const void *data = AudioServer::get_singleton()->sample_get_data_ptr(s);
bool is16 = AudioServer::get_singleton()->sample_get_format(s)==AudioServer::SAMPLE_FORMAT_PCM16;
int skip = AudioServer::get_singleton()->sample_is_stereo(s) ? 1: 0;
uint64_t max = AudioServer::get_singleton()->sample_get_length(s) * uint64_t(FP_LEN);
int mrate = AudioServer::get_singleton()->sample_get_mix_rate(s) * pitch_scale * playback[i].scale;
uint64_t increment = uint64_t(mrate) * uint64_t(FP_LEN) / get_mix_rate();
float vol_begin = _get_vol_at_pos(fp_pos>>FP_BITS,max>>FP_BITS,xfade_time*mrate);
float vol_end = _get_vol_at_pos((fp_pos+p_frames*increment)>>FP_BITS,max>>FP_BITS,xfade_time*mrate);
int32_t vol = CLAMP(int32_t(vol_begin * 65535),0,65535);
int32_t vol_to = CLAMP(int32_t(vol_end * 65535),0,65535);
int32_t vol_inc = (vol_to-vol)/p_frames;
bool done=false;
if (is16) {
const int16_t *smp = (int16_t*)data;
for(int i=0;i<p_frames;i++) {
if (fp_pos >= max) {
done=true;
break;
}
int idx = (fp_pos>>FP_BITS)<<skip;
p_buffer[i]+=int32_t(smp[idx])*vol;
vol+=vol_inc;
fp_pos+=increment;
}
} else {
const int8_t *smp = (int8_t*)data;
for(int i=0;i<p_frames;i++) {
if (fp_pos >= max) {
done=true;
break;
}
int idx = (fp_pos>>FP_BITS)<<skip;
p_buffer[i]+=(int32_t(smp[idx])<<8)*vol;
vol+=vol_inc;
fp_pos+=increment;
}
}
playback[i].fp_pos=fp_pos;
if (!paused && active_voices==1 && (vol_end < vol_begin || done)) {
//xfade to something else i gues
active_voices=2;
playback[1].idx=randomize();
playback[1].fp_pos=0;
playback[1].scale=Math::random(1,1+pitch_random_scale);
}
if (done) {
if (i==0 && active_voices==2) {
playback[0]=playback[1];
i--;
}
active_voices--;
}
}
return true;
}
void AudioStreamGibberish::play() {
if (active)
stop();
if (!phonemes.is_valid())
return;
List<StringName> slist;
phonemes->get_sample_list(&slist);
if (slist.size()==0)
return;
_samples.resize(slist.size());
_rand_pool.resize(slist.size());
int i=0;
for(List<StringName>::Element *E=slist.front();E;E=E->next()) {
_rand_pool[i]=i;
_samples[i++]=phonemes->get_sample(E->get());
}
rand_idx=0;
active_voices=0;
active=true;
}
void AudioStreamGibberish::stop(){
active=false;
}
bool AudioStreamGibberish::is_playing() const {
return active;
}
void AudioStreamGibberish::set_paused(bool p_paused){
paused=p_paused;
}
bool AudioStreamGibberish::is_paused(bool p_paused) const{
return paused;
}
void AudioStreamGibberish::set_loop(bool p_enable){
}
bool AudioStreamGibberish::has_loop() const{
return false;
}
float AudioStreamGibberish::get_length() const{
return 0;
}
String AudioStreamGibberish::get_stream_name() const{
return "Gibberish";
}
int AudioStreamGibberish::get_loop_count() const{
return 0;
}
float AudioStreamGibberish::get_pos() const{
return 0;
}
void AudioStreamGibberish::seek_pos(float p_time){
}
AudioStream::UpdateMode AudioStreamGibberish::get_update_mode() const{
return AudioStream::UPDATE_NONE;
}
void AudioStreamGibberish::update(){
}
void AudioStreamGibberish::set_phonemes(const Ref<SampleLibrary>& p_phonemes) {
phonemes=p_phonemes;
}
Ref<SampleLibrary> AudioStreamGibberish::get_phonemes() const {
return phonemes;
}
void AudioStreamGibberish::set_xfade_time(float p_xfade) {
xfade_time=p_xfade;
}
float AudioStreamGibberish::get_xfade_time() const {
return xfade_time;
}
void AudioStreamGibberish::set_pitch_scale(float p_scale) {
pitch_scale=p_scale;
}
float AudioStreamGibberish::get_pitch_scale() const {
return pitch_scale;
}
void AudioStreamGibberish::set_pitch_random_scale(float p_random_scale) {
pitch_random_scale=p_random_scale;
}
float AudioStreamGibberish::get_pitch_random_scale() const {
return pitch_random_scale;
}
void AudioStreamGibberish::_bind_methods() {
ObjectTypeDB::bind_method(_MD("set_phonemes","phonemes"),&AudioStreamGibberish::set_phonemes);
ObjectTypeDB::bind_method(_MD("get_phonemes"),&AudioStreamGibberish::get_phonemes);
ObjectTypeDB::bind_method(_MD("set_pitch_scale","pitch_scale"),&AudioStreamGibberish::set_pitch_scale);
ObjectTypeDB::bind_method(_MD("get_pitch_scale"),&AudioStreamGibberish::get_pitch_scale);
ObjectTypeDB::bind_method(_MD("set_pitch_random_scale","pitch_random_scale"),&AudioStreamGibberish::set_pitch_random_scale);
ObjectTypeDB::bind_method(_MD("get_pitch_random_scale"),&AudioStreamGibberish::get_pitch_random_scale);
ObjectTypeDB::bind_method(_MD("set_xfade_time","sec"),&AudioStreamGibberish::set_xfade_time);
ObjectTypeDB::bind_method(_MD("get_xfade_time"),&AudioStreamGibberish::get_xfade_time);
ADD_PROPERTY( PropertyInfo(Variant::OBJECT,"phonemes",PROPERTY_HINT_RESOURCE_TYPE,"SampleLibrary"),_SCS("set_phonemes"),_SCS("get_phonemes"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"pitch_scale",PROPERTY_HINT_RANGE,"0.01,64,0.01"),_SCS("set_pitch_scale"),_SCS("get_pitch_scale"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"pitch_random_scale",PROPERTY_HINT_RANGE,"0,64,0.01"),_SCS("set_pitch_random_scale"),_SCS("get_pitch_random_scale"));
ADD_PROPERTY( PropertyInfo(Variant::REAL,"xfade_sec",PROPERTY_HINT_RANGE,"0.001,0.5,0.001"),_SCS("set_xfade_time"),_SCS("get_xfade_time"));
}
AudioStreamGibberish::AudioStreamGibberish() {
xfade_time=0.1;
pitch_scale=1;
pitch_random_scale=0;
active=false;
paused=false;
active_voices=0;
}
#endif
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