*/
-#include "plugin_eq_gui.h"
-#include "fft.h"
+#include <algorithm>
+#include <math.h>
+#include <iomanip>
+#include <iostream>
+#include <sstream>
+
+#ifdef COMPILER_MSVC
+#include <float.h>
+/* isinf() & isnan() are C99 standards, which older MSVC doesn't provide */
+#define ISINF(val) !((bool)_finite((double)val))
+#define ISNAN(val) (bool)_isnan((double)val)
+#else
+#define ISINF(val) std::isinf((val))
+#define ISNAN(val) std::isnan((val))
+#endif
+
+#include <gtkmm/box.h>
+#include <gtkmm/button.h>
+#include <gtkmm/checkbutton.h>
-#include "ardour_ui.h"
-#include "gui_thread.h"
#include "ardour/audio_buffer.h"
#include "ardour/data_type.h"
#include "ardour/chan_mapping.h"
+#include "ardour/plugin_insert.h"
#include "ardour/session.h"
-#include <gtkmm/box.h>
-#include <gtkmm/button.h>
-#include <gtkmm/checkbutton.h>
+#include "plugin_eq_gui.h"
+#include "fft.h"
+#include "ardour_ui.h"
+#include "gui_thread.h"
-#include <iostream>
-#include <cmath>
+#include "pbd/i18n.h"
+
+using namespace ARDOUR;
PluginEqGui::PluginEqGui(boost::shared_ptr<ARDOUR::PluginInsert> pluginInsert)
- : _min_dB(-12.0),
- _max_dB(+12.0),
- _step_dB(3.0),
- _impulse_fft(0),
- _signal_input_fft(0),
- _signal_output_fft(0),
- _plugin_insert(pluginInsert)
+ : _min_dB(-12.0)
+ , _max_dB(+12.0)
+ , _step_dB(3.0)
+ , _buffer_size(0)
+ , _signal_buffer_size(0)
+ , _impulse_fft(0)
+ , _signal_input_fft(0)
+ , _signal_output_fft(0)
+ , _plugin_insert(pluginInsert)
+ , _pointer_in_area_xpos(-1)
{
_signal_analysis_running = false;
- _samplerate = ARDOUR_UI::instance()->the_session()->frame_rate();
-
- _plugin = _plugin_insert->get_impulse_analysis_plugin();
- _plugin->activate();
-
- set_buffer_size(4096, 16384);
- //set_buffer_size(4096, 4096);
+ _samplerate = ARDOUR_UI::instance()->the_session()->sample_rate();
_log_coeff = (1.0 - 2.0 * (1000.0/(_samplerate/2.0))) / powf(1000.0/(_samplerate/2.0), 2.0);
_log_max = log10f(1 + _log_coeff);
-
// Setup analysis drawing area
_analysis_scale_surface = 0;
_analysis_area = new Gtk::DrawingArea();
- _analysis_width = 500.0;
- _analysis_height = 500.0;
+ _analysis_width = 256.0;
+ _analysis_height = 256.0;
_analysis_area->set_size_request(_analysis_width, _analysis_height);
+ _analysis_area->add_events(Gdk::POINTER_MOTION_MASK | Gdk::LEAVE_NOTIFY_MASK | Gdk::BUTTON_PRESS_MASK);
+
_analysis_area->signal_expose_event().connect( sigc::mem_fun (*this, &PluginEqGui::expose_analysis_area));
_analysis_area->signal_size_allocate().connect( sigc::mem_fun (*this, &PluginEqGui::resize_analysis_area));
-
+ _analysis_area->signal_motion_notify_event().connect( sigc::mem_fun (*this, &PluginEqGui::analysis_area_mouseover));
+ _analysis_area->signal_leave_notify_event().connect( sigc::mem_fun (*this, &PluginEqGui::analysis_area_mouseexit));
// dB selection
dBScaleModel = Gtk::ListStore::create(dBColumns);
- dBScaleCombo = new Gtk::ComboBox(dBScaleModel);
- dBScaleCombo -> set_title("dB scale");
+ dBScaleCombo = new Gtk::ComboBox (dBScaleModel, false);
+ dBScaleCombo->set_title (_("dB scale"));
#define ADD_DB_ROW(MIN,MAX,STEP,NAME) \
{ \
dBScaleCombo -> signal_changed().connect( sigc::mem_fun(*this, &PluginEqGui::change_dB_scale) );
- Gtk::Label *dBComboLabel = new Gtk::Label("dB scale");
+ Gtk::Label *dBComboLabel = new Gtk::Label (_("dB scale"));
Gtk::HBox *dBSelectBin = new Gtk::HBox(false, 5);
dBSelectBin->add( *manage(dBComboLabel));
dBSelectBin->add( *manage(dBScaleCombo));
// Phase checkbutton
- _phase_button = new Gtk::CheckButton("Show phase");
+ _signal_button = new Gtk::CheckButton (_("Plot live signal"));
+ _signal_button->set_active(true);
+
+ // Phase checkbutton
+ _phase_button = new Gtk::CheckButton (_("Show phase"));
_phase_button->set_active(true);
_phase_button->signal_toggled().connect( sigc::mem_fun(*this, &PluginEqGui::redraw_scales));
- // populate table
- attach( *manage(_analysis_area), 1, 3, 1, 2);
- attach( *manage(dBSelectBin), 1, 2, 2, 3, Gtk::SHRINK, Gtk::SHRINK);
- attach( *manage(_phase_button), 2, 3, 2, 3, Gtk::SHRINK, Gtk::SHRINK);
-
+ // Freq/dB info for mouse over
+ _pointer_info = new Gtk::Label ("", 1, 0.5);
+ _pointer_info->set_size_request(_analysis_width / 4, -1);
+ _pointer_info->set_name("PluginAnalysisInfoLabel");
- // Connect the realtime signal collection callback
- _plugin_insert->AnalysisDataGathered.connect (analysis_connection, invalidator (*this), ui_bind (&PluginEqGui::signal_collect_callback, this, _1, _2), gui_context());
+ // populate table
+ attach (*manage(_analysis_area), 0, 4, 0, 1);
+ attach (*manage(dBSelectBin), 0, 1, 1, 2, Gtk::SHRINK, Gtk::SHRINK);
+ attach (*manage(_signal_button), 1, 2, 1, 2, Gtk::SHRINK, Gtk::SHRINK);
+ attach (*manage(_phase_button), 2, 3, 1, 2, Gtk::SHRINK, Gtk::SHRINK);
+ attach (*manage(_pointer_info), 3, 4, 1, 2, Gtk::FILL, Gtk::SHRINK);
}
PluginEqGui::~PluginEqGui()
{
+ stop_listening ();
+
if (_analysis_scale_surface) {
cairo_surface_destroy (_analysis_scale_surface);
}
delete _impulse_fft;
+ _impulse_fft = 0;
delete _signal_input_fft;
+ _signal_input_fft = 0;
delete _signal_output_fft;
-
- _plugin->deactivate();
+ _signal_output_fft = 0;
// all gui objects are *manage'd by the inherited Table object
}
+static inline float
+power_to_dB(float a)
+{
+ return 10.0 * log10f(a);
+}
+
+void
+PluginEqGui::start_listening ()
+{
+ if (!_plugin) {
+ _plugin = _plugin_insert->get_impulse_analysis_plugin();
+ }
+
+ _plugin->activate();
+ set_buffer_size(4096, 16384);
+ _plugin->set_block_size (_buffer_size);
+ // Connect the realtime signal collection callback
+ _plugin_insert->AnalysisDataGathered.connect (analysis_connection, invalidator (*this), boost::bind (&PluginEqGui::signal_collect_callback, this, _1, _2), gui_context());
+}
+
+void
+PluginEqGui::stop_listening ()
+{
+ analysis_connection.disconnect ();
+ _plugin->deactivate ();
+}
void
PluginEqGui::on_hide()
start_updating();
Gtk::Widget *toplevel = get_toplevel();
- if (!toplevel) {
- std::cerr << "No toplevel widget for PluginEqGui?!?!" << std::endl;
- }
-
- if (!_window_unmap_connection.connected()) {
- _window_unmap_connection = toplevel->signal_unmap().connect( sigc::mem_fun(this, &PluginEqGui::stop_updating));
- }
+ if (toplevel) {
+ if (!_window_unmap_connection.connected()) {
+ _window_unmap_connection = toplevel->signal_unmap().connect( sigc::mem_fun(this, &PluginEqGui::stop_updating));
+ }
- if (!_window_map_connection.connected()) {
- _window_map_connection = toplevel->signal_map().connect( sigc::mem_fun(this, &PluginEqGui::start_updating));
+ if (!_window_map_connection.connected()) {
+ _window_map_connection = toplevel->signal_map().connect( sigc::mem_fun(this, &PluginEqGui::start_updating));
+ }
}
-
}
void
void
PluginEqGui::set_buffer_size(uint32_t size, uint32_t signal_size)
{
- if (_buffer_size == size && _signal_buffer_size == signal_size)
+ if (_buffer_size == size && _signal_buffer_size == signal_size) {
return;
+ }
-
- FFT *tmp1 = _impulse_fft;
- FFT *tmp2 = _signal_input_fft;
- FFT *tmp3 = _signal_output_fft;
+ GTKArdour::FFT *tmp1 = _impulse_fft;
+ GTKArdour::FFT *tmp2 = _signal_input_fft;
+ GTKArdour::FFT *tmp3 = _signal_output_fft;
try {
- _impulse_fft = new FFT(size);
- _signal_input_fft = new FFT(signal_size);
- _signal_output_fft = new FFT(signal_size);
+ _impulse_fft = new GTKArdour::FFT(size);
+ _signal_input_fft = new GTKArdour::FFT(signal_size);
+ _signal_output_fft = new GTKArdour::FFT(signal_size);
} catch( ... ) {
// Don't care about lost memory, we're screwed anyhow
_impulse_fft = tmp1;
_buffer_size = size;
_signal_buffer_size = signal_size;
- // These are for impulse analysis only, the signal analysis uses the actual
- // number of I/O's for the plugininsert
- uint32_t inputs = _plugin->get_info()->n_inputs.n_audio();
- uint32_t outputs = _plugin->get_info()->n_outputs.n_audio();
+ // allocate separate in+out buffers, VST cannot process in-place
+ ARDOUR::ChanCount acount (_plugin->get_info()->n_inputs + _plugin->get_info()->n_outputs);
+ ARDOUR::ChanCount ccount = ARDOUR::ChanCount::max (_plugin->get_info()->n_inputs, _plugin->get_info()->n_outputs);
- // buffers for the signal analysis are ensured inside PluginInsert
- uint32_t n_chans = std::max(inputs, outputs);
- _bufferset.ensure_buffers(ARDOUR::DataType::AUDIO, n_chans, _buffer_size);
- _collect_bufferset.ensure_buffers(ARDOUR::DataType::AUDIO, n_chans, _buffer_size);
+ for (ARDOUR::DataType::iterator i = ARDOUR::DataType::begin(); i != ARDOUR::DataType::end(); ++i) {
+ _bufferset.ensure_buffers (*i, acount.get (*i), _buffer_size);
+ _collect_bufferset.ensure_buffers (*i, ccount.get (*i), _buffer_size);
+ }
- ARDOUR::ChanCount chanCount(ARDOUR::DataType::AUDIO, n_chans);
- _bufferset.set_count(chanCount);
- _collect_bufferset.set_count(chanCount);
+ _bufferset.set_count (acount);
+ _collect_bufferset.set_count (ccount);
}
void
-PluginEqGui::resize_analysis_area(Gtk::Allocation& size)
+PluginEqGui::resize_analysis_area (Gtk::Allocation& size)
{
_analysis_width = (float)size.get_width();
_analysis_height = (float)size.get_height();
cairo_surface_destroy (_analysis_scale_surface);
_analysis_scale_surface = 0;
}
+
+ _pointer_info->set_size_request(_analysis_width / 4, -1);
}
bool
void
PluginEqGui::signal_collect_callback(ARDOUR::BufferSet *in, ARDOUR::BufferSet *out)
{
- ENSURE_GUI_THREAD (*this, &PluginEqGui::signal_collect_callback, in, out)
+ ENSURE_GUI_THREAD (*this, &PluginEqGui::signal_collect_callback, in, out);
_signal_input_fft ->reset();
_signal_output_fft->reset();
for (uint32_t i = 0; i < _plugin_insert->input_streams().n_audio(); ++i) {
- _signal_input_fft ->analyze(in ->get_audio(i).data(), FFT::HANN);
+ _signal_input_fft ->analyze(in ->get_audio(i).data(), GTKArdour::FFT::HANN);
}
for (uint32_t i = 0; i < _plugin_insert->output_streams().n_audio(); ++i) {
- _signal_output_fft->analyze(out->get_audio(i).data(), FFT::HANN);
+ _signal_output_fft->analyze(out->get_audio(i).data(), GTKArdour::FFT::HANN);
}
_signal_input_fft ->calculate();
void
PluginEqGui::run_impulse_analysis()
{
+ /* Allocate some thread-local buffers so that Plugin::connect_and_run can use them */
+ ARDOUR_UI::instance()->get_process_buffers ();
+
uint32_t inputs = _plugin->get_info()->n_inputs.n_audio();
uint32_t outputs = _plugin->get_info()->n_outputs.n_audio();
ARDOUR::ChanMapping in_map(_plugin->get_info()->n_inputs);
ARDOUR::ChanMapping out_map(_plugin->get_info()->n_outputs);
+ // map output buffers after input buffers (no inplace for VST)
+ out_map.offset_to (DataType::AUDIO, inputs);
- _plugin->connect_and_run(_bufferset, in_map, out_map, _buffer_size, (nframes_t)0);
- nframes_t f = _plugin->signal_latency();
+ _plugin->connect_and_run(_bufferset, 0, _buffer_size, 1.0, in_map, out_map, _buffer_size, 0);
+ samplecnt_t f = _plugin->signal_latency ();
// Adding user_latency() could be interesting
// Gather all output, taking latency into account.
//std::cerr << "0: no latency, copying full buffer, trivial.." << std::endl;
for (uint32_t i = 0; i < outputs; ++i) {
memcpy(_collect_bufferset.get_audio(i).data(),
- _bufferset.get_audio(i).data(), _buffer_size * sizeof(float));
+ _bufferset.get_audio(inputs + i).data(), _buffer_size * sizeof(float));
}
} else {
//int C = 0;
- //std::cerr << (++C) << ": latency is " << f << " frames, doing split processing.." << std::endl;
- nframes_t target_offset = 0;
- nframes_t frames_left = _buffer_size; // refaktoroi
+ //std::cerr << (++C) << ": latency is " << f << " samples, doing split processing.." << std::endl;
+ samplecnt_t target_offset = 0;
+ samplecnt_t samples_left = _buffer_size; // refaktoroi
do {
if (f >= _buffer_size) {
//std::cerr << (++C) << ": f (=" << f << ") is larger than buffer_size, still trying to reach the actual output" << std::endl;
// this buffer contains either the first, last or a whole bu the output of the impulse
// first part: offset is 0, so we copy to the start of _collect_bufferset
// we start at output offset "f"
- // .. and copy "buffer size" - "f" - "offset" frames
+ // .. and copy "buffer size" - "f" - "offset" samples
- nframes_t length = _buffer_size - f - target_offset;
+ samplecnt_t length = _buffer_size - f - target_offset;
- //std::cerr << (++C) << ": copying " << length << " frames to _collect_bufferset.get_audio(i)+" << target_offset << " from bufferset at offset " << f << std::endl;
+ //std::cerr << (++C) << ": copying " << length << " samples to _collect_bufferset.get_audio(i)+" << target_offset << " from bufferset at offset " << f << std::endl;
for (uint32_t i = 0; i < outputs; ++i) {
memcpy(_collect_bufferset.get_audio(i).data(target_offset),
- _bufferset.get_audio(i).data() + f,
- length * sizeof(float));
+ _bufferset.get_audio(inputs + i).data() + f,
+ length * sizeof(float));
}
target_offset += length;
- frames_left -= length;
+ samples_left -= length;
f = 0;
}
- if (frames_left > 0) {
+ if (samples_left > 0) {
// Silence the buffers
for (uint32_t i = 0; i < inputs; ++i) {
ARDOUR::AudioBuffer &buf = _bufferset.get_audio(i);
memset(d, 0, sizeof(ARDOUR::Sample)*_buffer_size);
}
- in_map = ARDOUR::ChanMapping(_plugin->get_info()->n_inputs);
- out_map = ARDOUR::ChanMapping(_plugin->get_info()->n_outputs);
- _plugin->connect_and_run(_bufferset, in_map, out_map, _buffer_size, (nframes_t)0);
+ _plugin->connect_and_run (_bufferset, target_offset, target_offset + _buffer_size, 1.0, in_map, out_map, _buffer_size, 0);
}
- } while ( frames_left > 0);
+ } while ( samples_left > 0);
}
// This signals calls expose_analysis_area()
_analysis_area->queue_draw();
+
+ ARDOUR_UI::instance()->drop_process_buffers ();
+}
+
+void
+PluginEqGui::update_pointer_info(float x)
+{
+ /* find the bin corresponding to x (see plot_impulse_amplitude) */
+ int i = roundf ((powf (10, _log_max * x / _analysis_width) - 1.0) * _impulse_fft->bins() / _log_coeff);
+ float dB = power_to_dB (_impulse_fft->power_at_bin (i));
+ /* calc freq corresponding to bin */
+ const int freq = std::max (1, (int) roundf((float)i / (float)_impulse_fft->bins() * _samplerate / 2.f));
+
+ _pointer_in_area_freq = round (_analysis_width * log10f(1.0 + (float)i / (float)_impulse_fft->bins() * _log_coeff) / _log_max);
+
+ std::stringstream ss;
+ ss << std::fixed;
+ if (freq >= 10000) {
+ ss << std::setprecision (1) << freq / 1000.0 << "kHz";
+ } else if (freq >= 1000) {
+ ss << std::setprecision (2) << freq / 1000.0 << "kHz";
+ } else {
+ ss << std::setprecision (0) << freq << "Hz";
+ }
+ ss << " " << std::setw(6) << std::setprecision (1) << std::showpos << dB;
+ ss << std::setw(0) << "dB";
+
+ if (_phase_button->get_active()) {
+ float phase = 180. * _impulse_fft->phase_at_bin (i) / M_PI;
+ ss << " " << std::setw(6) << std::setprecision (1) << std::showpos << phase;
+ ss << std::setw(0) << "\u00B0";
+ }
+ _pointer_info->set_text(ss.str());
+}
+
+bool
+PluginEqGui::analysis_area_mouseover(GdkEventMotion *event)
+{
+ update_pointer_info(event->x);
+ _pointer_in_area_xpos = event->x;
+ _analysis_area->queue_draw();
+ return true;
+}
+
+bool
+PluginEqGui::analysis_area_mouseexit(GdkEventCrossing *)
+{
+ _pointer_info->set_text("");
+ _pointer_in_area_xpos = -1;
+ _analysis_area->queue_draw();
+ return true;
}
bool
PluginEqGui::expose_analysis_area(GdkEventExpose *)
{
redraw_analysis_area();
-
- return false;
+ return true;
}
void
PluginEqGui::draw_analysis_scales(cairo_t *ref_cr)
{
// TODO: check whether we need rounding
- _analysis_scale_surface = cairo_surface_create_similar(cairo_get_target(ref_cr),
- CAIRO_CONTENT_COLOR,
- _analysis_width,
- _analysis_height);
+ _analysis_scale_surface = cairo_surface_create_similar (cairo_get_target(ref_cr),
+ CAIRO_CONTENT_COLOR,
+ _analysis_width,
+ _analysis_height);
cairo_t *cr = cairo_create (_analysis_scale_surface);
- cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
- cairo_rectangle(cr, 0.0, 0.0, _analysis_width, _analysis_height);
- cairo_fill(cr);
+ cairo_set_source_rgb(cr, 0.0, 0.0, 0.0);
+ cairo_rectangle(cr, 0.0, 0.0, _analysis_width, _analysis_height);
+ cairo_fill(cr);
draw_scales_power(_analysis_area, cr);
draw_scales_phase(_analysis_area, cr);
}
- cairo_destroy(cr);
-
+ cairo_destroy(cr);
}
void
{
cairo_t *cr;
- cr = gdk_cairo_create(GDK_DRAWABLE(_analysis_area->get_window()->gobj()));
+ cr = gdk_cairo_create(GDK_DRAWABLE(_analysis_area->get_window()->gobj()));
if (_analysis_scale_surface == 0) {
draw_analysis_scales(cr);
}
-
cairo_copy_page(cr);
cairo_set_source_surface(cr, _analysis_scale_surface, 0.0, 0.0);
cairo_paint(cr);
+ cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND);
+
if (_phase_button->get_active()) {
plot_impulse_phase(_analysis_area, cr);
}
+
plot_impulse_amplitude(_analysis_area, cr);
- // TODO: make this optional
- plot_signal_amplitude_difference(_analysis_area, cr);
+ if (_pointer_in_area_xpos >= 0) {
+ update_pointer_info (_pointer_in_area_xpos);
+ }
- cairo_destroy(cr);
+ if (_signal_button->get_active()) {
+ plot_signal_amplitude_difference(_analysis_area, cr);
+ }
+ if (_pointer_in_area_xpos >= 0 && _pointer_in_area_freq > 0) {
+ const double dashed[] = {0.0, 2.0};
+ cairo_set_dash (cr, dashed, 2, 0);
+ cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+ cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
+ cairo_set_line_width (cr, 1.0);
+ cairo_move_to (cr, _pointer_in_area_freq - .5, -.5);
+ cairo_line_to (cr, _pointer_in_area_freq - .5, _analysis_height - .5);
+ cairo_stroke(cr);
+ }
+ cairo_destroy(cr);
}
#define PHASE_PROPORTION 0.5
y = _analysis_height/2.0 - (float)i*(_analysis_height/8.0)*PHASE_PROPORTION;
- cairo_set_source_rgb(cr, .8, .9, 0.2);
+ cairo_set_source_rgb(cr, .8, .9, 0.2);
if (i == 0) {
snprintf(buf,256, "0\u00b0");
} else {
continue;
- cairo_set_source_rgba(cr, .8, .9, 0.2, 0.6/(float)i);
+ cairo_set_source_rgba(cr, .8, .9, 0.2, 0.6/(float)i);
cairo_move_to(cr, 0.0, y);
cairo_line_to(cr, _analysis_width, y);
// label
snprintf(buf,256, "-%d\u00b0", (i * 45));
- cairo_set_source_rgb(cr, .8, .9, 0.2);
+ cairo_set_source_rgb(cr, .8, .9, 0.2);
cairo_text_extents(cr, buf, &t_ext);
cairo_move_to(cr, _analysis_width - t_ext.width - t_ext.x_bearing - 2.0, y - extents.descent);
cairo_show_text(cr, buf);
// line
- cairo_set_source_rgba(cr, .8, .9, 0.2, 0.6/(float)i);
+ cairo_set_source_rgba(cr, .8, .9, 0.2, 0.6/(float)i);
cairo_move_to(cr, 0.0, y);
cairo_line_to(cr, _analysis_width, y);
// float width = w->get_width();
float height = w->get_height();
- cairo_set_source_rgba(cr, 0.95, 0.3, 0.2, 1.0);
+ cairo_set_source_rgba(cr, 0.95, 0.3, 0.2, 1.0);
for (uint32_t i = 0; i < _impulse_fft->bins()-1; i++) {
// x coordinate of bin i
x = log10f(1.0 + (float)i / (float)_impulse_fft->bins() * _log_coeff) / _log_max;
void
PluginEqGui::draw_scales_power(Gtk::Widget */*w*/, cairo_t *cr)
{
- static float scales[] = { 30.0, 70.0, 125.0, 250.0, 500.0, 1000.0, 2000.0, 5000.0, 10000.0, 15000.0, 20000.0, -1.0 };
+ if (_impulse_fft == 0) {
+ return;
+ }
+ static float scales[] = { 30.0, 70.0, 125.0, 250.0, 500.0, 1000.0, 2000.0, 5000.0, 10000.0, 15000.0, 20000.0, -1.0 };
float divisor = _samplerate / 2.0 / _impulse_fft->bins();
float x;
}
-inline float
-power_to_dB(float a)
-{
- return 10.0 * log10f(a);
-}
-
void
PluginEqGui::plot_impulse_amplitude(Gtk::Widget *w, cairo_t *cr)
{
float x,y;
-
int prevX = 0;
float avgY = 0.0;
int avgNum = 0;
// float width = w->get_width();
float height = w->get_height();
- cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+ cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
cairo_set_line_width (cr, 2.5);
for (uint32_t i = 0; i < _impulse_fft->bins()-1; i++) {
// float width = w->get_width();
float height = w->get_height();
- cairo_set_source_rgb(cr, 0.0, 1.0, 0.0);
- cairo_set_line_width (cr, 2.5);
+ cairo_set_source_rgb(cr, 0.0, 1.0, 0.0);
+ cairo_set_line_width (cr, 1.5);
for (uint32_t i = 0; i < _signal_input_fft->bins()-1; i++) {
// x coordinate of bin i
x = log10f(1.0 + (float)i / (float)_signal_input_fft->bins() * _log_coeff) / _log_max;
x *= _analysis_width;
- float power_out = power_to_dB(_signal_output_fft->power_at_bin(i));
- float power_in = power_to_dB(_signal_input_fft ->power_at_bin(i));
- float power = power_out - power_in;
-
- // for SaBer
- /*
- double p = 10.0 * log10( 1.0 + (double)_signal_output_fft->power_at_bin(i) - (double)
- - _signal_input_fft ->power_at_bin(i));
- //p *= 1000000.0;
- float power = (float)p;
+ float power_out = _signal_output_fft->power_at_bin (i) + 1e-30;
+ float power_in = _signal_input_fft ->power_at_bin (i) + 1e-30;
+ float power = power_to_dB (power_out / power_in);
- if ( (i % 1000) == 0) {
- std::cerr << i << ": " << power << std::endl;
- }
- */
-
- if (std::isinf(power)) {
- if (power < 0) {
- power = _min_dB - 1.0;
- } else {
- power = _max_dB - 1.0;
- }
- } else if (std::isnan(power)) {
- power = _min_dB - 1.0;
- }
+ assert (!ISINF(power));
+ assert (!ISNAN(power));
float yCoeff = ( power - _min_dB) / (_max_dB - _min_dB);
}
cairo_stroke(cr);
-
-
}
projects / ardour.git / blobdiff