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-rw-r--r--src/server/internals/Delay.cpp205
1 files changed, 0 insertions, 205 deletions
diff --git a/src/server/internals/Delay.cpp b/src/server/internals/Delay.cpp
deleted file mode 100644
index 6ac97008..00000000
--- a/src/server/internals/Delay.cpp
+++ /dev/null
@@ -1,205 +0,0 @@
-/*
- This file is part of Ingen.
- Copyright 2007-2015 David Robillard <http://drobilla.net/>
-
- Ingen is free software: you can redistribute it and/or modify it under the
- terms of the GNU Affero General Public License as published by the Free
- Software Foundation, either version 3 of the License, or any later version.
-
- Ingen is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE. See the GNU Affero General Public License for details.
-
- You should have received a copy of the GNU Affero General Public License
- along with Ingen. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include <limits.h>
-
-#include <cmath>
-
-#include "ingen/URIs.hpp"
-#include "raul/Array.hpp"
-#include "raul/Maid.hpp"
-
-#include "Buffer.hpp"
-#include "Driver.hpp"
-#include "Engine.hpp"
-#include "GraphImpl.hpp"
-#include "InputPort.hpp"
-#include "InternalPlugin.hpp"
-#include "OutputPort.hpp"
-#include "RunContext.hpp"
-#include "internals/Delay.hpp"
-#include "util.hpp"
-
-#define CALC_DELAY(delaytime) \
- (f_clamp (delaytime * (float)sample_rate, 1.0f, (float)(buffer_mask + 1)))
-
-using namespace std;
-
-namespace Ingen {
-namespace Server {
-namespace Internals {
-
-static const float MAX_DELAY_SECONDS = 8.0f;
-
-InternalPlugin* DelayNode::internal_plugin(URIs& uris) {
- return new InternalPlugin(
- uris, Raul::URI(NS_INTERNALS "Delay"), Raul::Symbol("delay"));
-}
-
-DelayNode::DelayNode(InternalPlugin* plugin,
- BufferFactory& bufs,
- const Raul::Symbol& symbol,
- bool polyphonic,
- GraphImpl* parent,
- SampleRate srate)
- : InternalBlock(plugin, symbol, polyphonic, parent, srate)
- , _buffer(0)
- , _buffer_length(0)
- , _buffer_mask(0)
- , _write_phase(0)
-{
- const Ingen::URIs& uris = bufs.uris();
- _ports = new Raul::Array<PortImpl*>(3);
-
- const float default_delay = 1.0f;
- _last_delay_time = default_delay;
- _delay_samples = default_delay;
-
- _delay_port = new InputPort(bufs, this, Raul::Symbol("delay"), 1, _polyphony,
- PortType::CONTROL, 0, bufs.forge().make(default_delay));
- _delay_port->set_property(uris.lv2_name, bufs.forge().alloc("Delay"));
- _delay_port->set_property(uris.lv2_default, bufs.forge().make(default_delay));
- _delay_port->set_property(uris.lv2_minimum, bufs.forge().make((float)(1.0/(double)srate)));
- _delay_port->set_property(uris.lv2_maximum, bufs.forge().make(MAX_DELAY_SECONDS));
- _ports->at(0) = _delay_port;
-
- _in_port = new InputPort(bufs, this, Raul::Symbol("in"), 0, 1,
- PortType::AUDIO, 0, bufs.forge().make(0.0f));
- _in_port->set_property(uris.lv2_name, bufs.forge().alloc("Input"));
- _ports->at(1) = _in_port;
-
- _out_port = new OutputPort(bufs, this, Raul::Symbol("out"), 0, 1,
- PortType::AUDIO, 0, bufs.forge().make(0.0f));
- _out_port->set_property(uris.lv2_name,
- bufs.forge().alloc("Output"));
- _ports->at(2) = _out_port;
-
- //_buffer = bufs.get(PortType::AUDIO, bufs.audio_buffer_size(buffer_length_frames), true);
-
-}
-
-DelayNode::~DelayNode()
-{
- //_buffer.reset();
- free(_buffer);
-}
-
-void
-DelayNode::activate(BufferFactory& bufs)
-{
- BlockImpl::activate(bufs);
- const SampleRate rate = bufs.engine().driver()->sample_rate();
- const SampleCount min_size = MAX_DELAY_SECONDS * rate;
-
- // Smallest power of two larger than min_size
- SampleCount size = 1;
- while (size < min_size)
- size <<= 1;
-
- _buffer = (float*)calloc(size, sizeof(float));
- _buffer_mask = size - 1;
- _buffer_length = size;
- //_buffer->clear();
- _write_phase = 0;
-}
-
-static inline float f_clamp(float x, float a, float b)
-{
- const float x1 = fabs(x - a);
- const float x2 = fabs(x - b);
-
- x = x1 + a + b;
- x -= x2;
- x *= 0.5;
-
- return x;
-}
-
-static inline float cube_interp(const float fr, const float inm1, const float
- in, const float inp1, const float inp2)
-{
- return in + 0.5f * fr * (
- inp1 - inm1 + fr * (
- 4.0f * inp1 + 2.0f * inm1 - 5.0f * in - inp2 + fr * (
- 3.0f * (in - inp1) - inm1 + inp2)));
-}
-
-void
-DelayNode::run(RunContext& context)
-{
- Buffer* const delay_buf = _delay_port->buffer(0).get();
- Buffer* const in_buf = _in_port->buffer(0).get();
- Buffer* const out_buf = _out_port->buffer(0).get();
-
- DelayNode* plugin_data = this;
-
- const float* const in = in_buf->samples();
- float* const out = out_buf->samples();
- const float delay_time = delay_buf->samples()[0];
- const uint32_t buffer_mask = plugin_data->_buffer_mask;
- const SampleRate sample_rate = context.engine().driver()->sample_rate();
- float delay_samples = plugin_data->_delay_samples;
- int64_t write_phase = plugin_data->_write_phase;
- const uint32_t sample_count = context.nframes();
-
- if (write_phase == 0) {
- _last_delay_time = delay_time;
- _delay_samples = delay_samples = CALC_DELAY(delay_time);
- }
-
- if (delay_time == _last_delay_time) {
- const int64_t idelay_samples = (int64_t)delay_samples;
- const float frac = delay_samples - idelay_samples;
-
- for (uint32_t i = 0; i < sample_count; i++) {
- int64_t read_phase = write_phase - (int64_t)delay_samples;
- const float read = cube_interp(frac,
- buffer_at(read_phase - 1),
- buffer_at(read_phase),
- buffer_at(read_phase + 1),
- buffer_at(read_phase + 2));
- buffer_at(write_phase++) = in[i];
- out[i] = read;
- }
- } else {
- const float next_delay_samples = CALC_DELAY(delay_time);
- const float delay_samples_slope = (next_delay_samples - delay_samples) / sample_count;
-
- for (uint32_t i = 0; i < sample_count; i++) {
- delay_samples += delay_samples_slope;
- write_phase++;
- const int64_t read_phase = write_phase - (int64_t)delay_samples;
- const int64_t idelay_samples = (int64_t)delay_samples;
- const float frac = delay_samples - idelay_samples;
- const float read = cube_interp(frac,
- buffer_at(read_phase - 1),
- buffer_at(read_phase),
- buffer_at(read_phase + 1),
- buffer_at(read_phase + 2));
- buffer_at(write_phase) = in[i];
- out[i] = read;
- }
-
- _last_delay_time = delay_time;
- _delay_samples = delay_samples;
- }
-
- _write_phase = write_phase;
-}
-
-} // namespace Internals
-} // namespace Server
-} // namespace Ingen
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