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Diffstat (limited to 'scene/resources/audio_stream_resampled.cpp')
-rw-r--r--scene/resources/audio_stream_resampled.cpp388
1 files changed, 0 insertions, 388 deletions
diff --git a/scene/resources/audio_stream_resampled.cpp b/scene/resources/audio_stream_resampled.cpp
deleted file mode 100644
index 1b1d6f8587..0000000000
--- a/scene/resources/audio_stream_resampled.cpp
+++ /dev/null
@@ -1,388 +0,0 @@
-/*************************************************************************/
-/* audio_stream_resampled.cpp */
-/*************************************************************************/
-/* This file is part of: */
-/* GODOT ENGINE */
-/* http://www.godotengine.org */
-/*************************************************************************/
-/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
-/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md) */
-/* */
-/* 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 "audio_stream_resampled.h"
-#include "project_settings.h"
-
-#if 0
-int AudioStreamResampled::get_channel_count() const {
-
- if (!rb)
- return 0;
-
- return channels;
-}
-
-
-template<int C>
-uint32_t AudioStreamResampled::_resample(int32_t *p_dest,int p_todo,int32_t p_increment) {
-
- uint32_t read=offset&MIX_FRAC_MASK;
-
- for (int i=0;i<p_todo;i++) {
-
- offset = (offset + p_increment)&(((1<<(rb_bits+MIX_FRAC_BITS))-1));
- read+=p_increment;
- uint32_t pos = offset >> MIX_FRAC_BITS;
- uint32_t frac = offset & MIX_FRAC_MASK;
-#ifndef FAST_AUDIO
- ERR_FAIL_COND_V(pos>=rb_len,0);
-#endif
- uint32_t pos_next = (pos+1)&rb_mask;
- //printf("rb pos %i\n",pos);
-
- // since this is a template with a known compile time value (C), conditionals go away when compiling.
- if (C==1) {
-
- int32_t v0 = rb[pos];
- int32_t v0n=rb[pos_next];
-#ifndef FAST_AUDIO
- v0+=(v0n-v0)*(int32_t)frac >> MIX_FRAC_BITS;
-#endif
- v0<<=16;
- p_dest[i]=v0;
-
- }
- if (C==2) {
-
- int32_t v0 = rb[(pos<<1)+0];
- int32_t v1 = rb[(pos<<1)+1];
- int32_t v0n=rb[(pos_next<<1)+0];
- int32_t v1n=rb[(pos_next<<1)+1];
-
-#ifndef FAST_AUDIO
- v0+=(v0n-v0)*(int32_t)frac >> MIX_FRAC_BITS;
- v1+=(v1n-v1)*(int32_t)frac >> MIX_FRAC_BITS;
-#endif
- v0<<=16;
- v1<<=16;
- p_dest[(i<<1)+0]=v0;
- p_dest[(i<<1)+1]=v1;
-
- }
-
- if (C==4) {
-
- int32_t v0 = rb[(pos<<2)+0];
- int32_t v1 = rb[(pos<<2)+1];
- int32_t v2 = rb[(pos<<2)+2];
- int32_t v3 = rb[(pos<<2)+3];
- int32_t v0n = rb[(pos_next<<2)+0];
- int32_t v1n=rb[(pos_next<<2)+1];
- int32_t v2n=rb[(pos_next<<2)+2];
- int32_t v3n=rb[(pos_next<<2)+3];
-
-#ifndef FAST_AUDIO
- v0+=(v0n-v0)*(int32_t)frac >> MIX_FRAC_BITS;
- v1+=(v1n-v1)*(int32_t)frac >> MIX_FRAC_BITS;
- v2+=(v2n-v2)*(int32_t)frac >> MIX_FRAC_BITS;
- v3+=(v3n-v3)*(int32_t)frac >> MIX_FRAC_BITS;
-#endif
- v0<<=16;
- v1<<=16;
- v2<<=16;
- v3<<=16;
- p_dest[(i<<2)+0]=v0;
- p_dest[(i<<2)+1]=v1;
- p_dest[(i<<2)+2]=v2;
- p_dest[(i<<2)+3]=v3;
-
- }
-
- if (C==6) {
-
- int32_t v0 = rb[(pos*6)+0];
- int32_t v1 = rb[(pos*6)+1];
- int32_t v2 = rb[(pos*6)+2];
- int32_t v3 = rb[(pos*6)+3];
- int32_t v4 = rb[(pos*6)+4];
- int32_t v5 = rb[(pos*6)+5];
- int32_t v0n = rb[(pos_next*6)+0];
- int32_t v1n=rb[(pos_next*6)+1];
- int32_t v2n=rb[(pos_next*6)+2];
- int32_t v3n=rb[(pos_next*6)+3];
- int32_t v4n=rb[(pos_next*6)+4];
- int32_t v5n=rb[(pos_next*6)+5];
-
-#ifndef FAST_AUDIO
- v0+=(v0n-v0)*(int32_t)frac >> MIX_FRAC_BITS;
- v1+=(v1n-v1)*(int32_t)frac >> MIX_FRAC_BITS;
- v2+=(v2n-v2)*(int32_t)frac >> MIX_FRAC_BITS;
- v3+=(v3n-v3)*(int32_t)frac >> MIX_FRAC_BITS;
- v4+=(v4n-v4)*(int32_t)frac >> MIX_FRAC_BITS;
- v5+=(v5n-v5)*(int32_t)frac >> MIX_FRAC_BITS;
-#endif
- v0<<=16;
- v1<<=16;
- v2<<=16;
- v3<<=16;
- v4<<=16;
- v5<<=16;
- p_dest[(i*6)+0]=v0;
- p_dest[(i*6)+1]=v1;
- p_dest[(i*6)+2]=v2;
- p_dest[(i*6)+3]=v3;
- p_dest[(i*6)+4]=v4;
- p_dest[(i*6)+5]=v5;
-
- }
-
-
- }
-
-
- return read>>MIX_FRAC_BITS;//rb_read_pos=offset>>MIX_FRAC_BITS;
-
-}
-
-
-bool AudioStreamResampled::mix(int32_t *p_dest, int p_frames) {
-
-
- if (!rb || !_can_mix())
- return false;
-
- int write_pos_cache=rb_write_pos;
-
- int32_t increment=(mix_rate*MIX_FRAC_LEN)/get_mix_rate();
-
- int rb_todo;
-
- if (write_pos_cache==rb_read_pos) {
- return false; //out of buffer
-
- } else if (rb_read_pos<write_pos_cache) {
-
- rb_todo=write_pos_cache-rb_read_pos; //-1?
- } else {
-
- rb_todo=(rb_len-rb_read_pos)+write_pos_cache; //-1?
- }
-
- int todo = MIN( ((int64_t(rb_todo)<<MIX_FRAC_BITS)/increment)+1, p_frames );
-#if 0
- if (int(mix_rate)==get_mix_rate()) {
-
-
- if (channels==6) {
-
- for(int i=0;i<p_frames;i++) {
-
- int from = ((rb_read_pos+i)&rb_mask)*6;
- int to = i*6;
-
- p_dest[from+0]=int32_t(rb[to+0])<<16;
- p_dest[from+1]=int32_t(rb[to+1])<<16;
- p_dest[from+2]=int32_t(rb[to+2])<<16;
- p_dest[from+3]=int32_t(rb[to+3])<<16;
- p_dest[from+4]=int32_t(rb[to+4])<<16;
- p_dest[from+5]=int32_t(rb[to+5])<<16;
- }
-
- } else {
- int len=p_frames*channels;
- int from=rb_read_pos*channels;
- int mask=0;
- switch(channels) {
- case 1: mask=rb_len-1; break;
- case 2: mask=(rb_len*2)-1; break;
- case 4: mask=(rb_len*4)-1; break;
- }
-
- for(int i=0;i<len;i++) {
-
- p_dest[i]=int32_t(rb[(from+i)&mask])<<16;
- }
- }
-
- rb_read_pos = (rb_read_pos+p_frames)&rb_mask;
- } else
-#endif
- {
-
- uint32_t read=0;
- switch(channels) {
- case 1: read=_resample<1>(p_dest,todo,increment); break;
- case 2: read=_resample<2>(p_dest,todo,increment); break;
- case 4: read=_resample<4>(p_dest,todo,increment); break;
- case 6: read=_resample<6>(p_dest,todo,increment); break;
- }
-#if 1
- //end of stream, fadeout
- int remaining = p_frames-todo;
- if (remaining && todo>0) {
-
- //print_line("fadeout");
- for(int c=0;c<channels;c++) {
-
- for(int i=0;i<todo;i++) {
-
- int32_t samp = p_dest[i*channels+c]>>8;
- uint32_t mul = (todo-i) * 256 /todo;
- //print_line("mul: "+itos(i)+" "+itos(mul));
- p_dest[i*channels+c]=samp*mul;
- }
-
- }
-
- }
-
-#else
- int remaining = p_frames-todo;
- if (remaining && todo>0) {
-
-
- for(int c=0;c<channels;c++) {
-
- int32_t from = p_dest[(todo-1)*channels+c]>>8;
-
- for(int i=0;i<remaining;i++) {
-
- uint32_t mul = (remaining-i) * 256 /remaining;
- p_dest[(todo+i)*channels+c]=from*mul;
- }
-
- }
-
- }
-#endif
-
- //zero out what remains there to avoid glitches
- for(int i=todo*channels;i<int(p_frames)*channels;i++) {
-
- p_dest[i]=0;
- }
-
- if (read>rb_todo)
- read=rb_todo;
-
- rb_read_pos = (rb_read_pos+read)&rb_mask;
-
-
-
-
- }
-
- return true;
-}
-
-
-Error AudioStreamResampled::_setup(int p_channels,int p_mix_rate,int p_minbuff_needed) {
-
- ERR_FAIL_COND_V(p_channels!=1 && p_channels!=2 && p_channels!=4 && p_channels!=6,ERR_INVALID_PARAMETER);
-
-
- float buffering_sec = int(GLOBAL_DEF("audio/stream_buffering_ms",500))/1000.0;
- int desired_rb_bits =nearest_shift(MAX(buffering_sec*p_mix_rate,p_minbuff_needed));
-
- bool recreate=!rb;
-
- if (rb && (uint32_t(desired_rb_bits)!=rb_bits || channels!=uint32_t(p_channels))) {
- //recreate
-
- memdelete_arr(rb);
- memdelete_arr(read_buf);
- recreate=true;
-
- }
-
- if (recreate) {
-
- channels=p_channels;
- rb_bits=desired_rb_bits;
- rb_len=(1<<rb_bits);
- rb_mask=rb_len-1;
- rb = memnew_arr( int16_t, rb_len * p_channels );
- read_buf = memnew_arr( int16_t, rb_len * p_channels );
-
- }
-
- mix_rate=p_mix_rate;
- offset=0;
- rb_read_pos=0;
- rb_write_pos=0;
-
- //avoid maybe strange noises upon load
- for (int i=0;i<(rb_len*channels);i++) {
-
- rb[i]=0;
- read_buf[i]=0;
- }
-
- return OK;
-
-}
-
-void AudioStreamResampled::_clear() {
-
- if (!rb)
- return;
-
- AudioServer::get_singleton()->lock();
- //should be stopped at this point but just in case
- if (rb) {
- memdelete_arr(rb);
- memdelete_arr(read_buf);
- }
- rb=NULL;
- offset=0;
- rb_read_pos=0;
- rb_write_pos=0;
- read_buf=NULL;
- AudioServer::get_singleton()->unlock();
-
-}
-
-AudioStreamResampled::AudioStreamResampled() {
-
- rb=NULL;
- offset=0;
- read_buf=NULL;
- rb_read_pos=0;
- rb_write_pos=0;
-
- rb_bits=0;
- rb_len=0;
- rb_mask=0;
- read_buff_len=0;
- channels=0;
- mix_rate=0;
-
-}
-
-AudioStreamResampled::~AudioStreamResampled() {
-
- if (rb) {
- memdelete_arr(rb);
- memdelete_arr(read_buf);
- }
-
-}
-
-#endif
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