*/
+#ifdef COMPILER_MSVC
+#include <algorithm>
+using std::min; using std::max;
+#endif
+
#include <iostream>
#include <glibmm.h>
#include <gtkmm/treemodel.h>
#include <gtkmm/treepath.h>
-#include <pbd/stl_delete.h>
+#include "pbd/stl_delete.h"
#include <math.h>
FFTGraph::FFTGraph(int windowSize)
{
_logScale = 0;
-
+
_in = 0;
_out = 0;
_hanning = 0;
FFTGraph::setWindowSize(int windowSize)
{
if (_a_window) {
- Glib::Mutex::Lock lm (_a_window->track_list_lock);
+ Glib::Threads::Mutex::Lock lm (_a_window->track_list_lock);
setWindowSize_internal(windowSize);
} else {
setWindowSize_internal(windowSize);
if (_a_window) {
_a_window->clear_tracklist();
}
-
+
_windowSize = windowSize;
_dataSize = windowSize / 2;
if (_in != 0) {
free(_in);
_in = 0;
}
-
+
if (_out != 0) {
free(_out);
_out = 0;
}
-
+
if (_hanning != 0) {
free(_hanning);
_hanning = 0;
// normalize the window
double sum = 0.0;
-
+
for (int i=0; i < _windowSize; i++) {
_hanning[i]=0.81f * ( 0.5f - (0.5f * (float) cos(2.0f * M_PI * (float)i / (float)(_windowSize))));
sum += _hanning[i];
}
double isum = 1.0 / sum;
-
+
for (int i=0; i < _windowSize; i++) {
_hanning[i] *= isum;
}
-
+
_logScale = (int *) malloc(sizeof(int) * _dataSize);
//float count = 0;
for (int i = 0; i < _dataSize; i++) {
}
bool
-FFTGraph::on_expose_event (GdkEventExpose* event)
+FFTGraph::on_expose_event (GdkEventExpose* /*event*/)
{
redraw();
return true;
void
FFTGraph::draw_scales(Glib::RefPtr<Gdk::Window> window)
{
-
+
Glib::RefPtr<Gtk::Style> style = get_style();
Glib::RefPtr<Gdk::GC> black = style->get_black_gc();
Glib::RefPtr<Gdk::GC> white = style->get_white_gc();
-
+
window->draw_rectangle(black, true, 0, 0, width, height);
-
+
/**
* 4 5
* _ _
#define DB_METRIC_LENGTH 8
// Line 4
window->draw_line(white, h_margin - DB_METRIC_LENGTH, v_margin, h_margin, v_margin );
-
+
// Line 5
window->draw_line(white, width - h_margin + 1, v_margin, width - h_margin + DB_METRIC_LENGTH, v_margin );
Color grey;
grey.set_rgb_p(0.2, 0.2, 0.2);
-
+
graph_gc->set_rgb_fg_color( grey );
if (layout == 0) {
float scale_points[10] = { 55.0, 110.0, 220.0, 440.0, 880.0, 1760.0, 3520.0, 7040.0, 14080.0, 28160.0 };
for (int x = 0; x < 10; x++) {
-
+
// i = 0.. _dataSize-1
float freq_at_bin = (SR/2.0) * ((double)i / (double)_dataSize);
while (_logScale[logscale_pos] < position_on_scale)
logscale_pos++;
-
+
int coord = (int)(v_margin + 1.0 + position_on_scale);
-
+
int SR = 44100;
int rate_at_pos = (int)((double)(SR/2) * (double)logscale_pos / (double)_dataSize);
-
+
char buf[32];
if (rate_at_pos < 1000)
snprintf(buf,32,"%dHz",rate_at_pos);
snprintf(buf,32,"%dk",(int)floor( (float)rate_at_pos/(float)1000) );
std::string label = buf;
-
+
layout->set_text(label);
-
+
window->draw_line(graph_gc, coord, v_margin, coord, height - v_margin - 1);
int width, height;
layout->get_pixel_size (width, height);
-
+
window->draw_layout(white, coord - width / 2, v_margin / 2, layout);
-
+
}
}
void
FFTGraph::redraw()
-{
- Glib::Mutex::Lock lm (_a_window->track_list_lock);
+{
+ Glib::Threads::Mutex::Lock lm (_a_window->track_list_lock);
draw_scales(get_window());
-
+
if (_a_window == 0)
return;
cairo_set_line_width(cr, 1.5);
cairo_translate(cr, (float)v_margin + 1.0, (float)h_margin);
-
-
+
+
// Find "session wide" min & max
- float min = 1000000000000.0;
- float max = -1000000000000.0;
-
+ float minf = 1000000000000.0;
+ float maxf = -1000000000000.0;
+
TreeNodeChildren track_rows = _a_window->track_list.get_model()->children();
-
+
for (TreeIter i = track_rows.begin(); i != track_rows.end(); i++) {
-
+
TreeModel::Row row = *i;
FFTResult *res = row[_a_window->tlcols.graph];
if (res->minimum() == res->maximum()) {
continue;
}
-
- if ( res->minimum() < min) {
- min = res->minimum();
+
+ if ( res->minimum() < minf) {
+ minf = res->minimum();
}
- if ( res->maximum() > max) {
- max = res->maximum();
+ if ( res->maximum() > maxf) {
+ maxf = res->maximum();
}
}
if (!_show_normalized) {
- min = -150.0f;
- max = 0.0f;
+ minf = -150.0f;
+ maxf = 0.0f;
}
-
+
//int graph_height = height - 2 * h_margin;
-
-
+
+
float fft_pane_size_w = (float)(width - 2*v_margin) - 1.0;
float fft_pane_size_h = (float)(height - 2*h_margin);
- double pixels_per_db = (double)fft_pane_size_h / (double)(max - min);
+ double pixels_per_db = (double)fft_pane_size_h / (double)(maxf - minf);
cairo_rectangle(cr, 0.0, 0.0, fft_pane_size_w, fft_pane_size_h);
cairo_clip(cr);
for (TreeIter i = track_rows.begin(); i != track_rows.end(); i++) {
-
+
TreeModel::Row row = *i;
// don't show graphs for tracks which are deselected
if (!row[_a_window->tlcols.visible]) {
continue;
}
-
+
FFTResult *res = row[_a_window->tlcols.graph];
// don't show graphs for empty signals
if (res->minimum() == res->maximum()) {
continue;
}
-
+
float mpp;
-
+
if (_show_minmax) {
mpp = -1000000.0;
cairo_set_source_rgba(cr, res->get_color().get_red_p(), res->get_color().get_green_p(), res->get_color().get_blue_p(), 0.30);
- cairo_move_to(cr, 0.5f + (float)_logScale[0], 0.5f + (float)( fft_pane_size_h - (int)floor( (res->maxAt(0) - min) * pixels_per_db) ));
+ cairo_move_to(cr, 0.5f + (float)_logScale[0], 0.5f + (float)( fft_pane_size_h - (int)floor( (res->maxAt(0) - minf) * pixels_per_db) ));
// Draw the line of maximum values
for (int x = 1; x < res->length(); x++) {
if (res->maxAt(x) > mpp)
mpp = res->maxAt(x);
- mpp = fmax(mpp, min);
- mpp = fmin(mpp, max);
+ mpp = fmax(mpp, minf);
+ mpp = fmin(mpp, maxf);
// If the next point on the log scale is at the same location,
// don't draw yet
}
float X = 0.5f + (float)_logScale[x];
- float Y = 0.5f + (float)( fft_pane_size_h - (int)floor( (mpp - min) * pixels_per_db) );
+ float Y = 0.5f + (float)( fft_pane_size_h - (int)floor( (mpp - minf) * pixels_per_db) );
cairo_line_to(cr, X, Y);
for (int x = res->length()-1; x >= 0; x--) {
if (res->minAt(x) < mpp)
mpp = res->minAt(x);
- mpp = fmax(mpp, min);
- mpp = fmin(mpp, max);
+ mpp = fmax(mpp, minf);
+ mpp = fmin(mpp, maxf);
// If the next point on the log scale is at the same location,
// don't draw yet
}
float X = 0.5f + (float)_logScale[x];
- float Y = 0.5f + (float)( fft_pane_size_h - (int)floor( (mpp - min) * pixels_per_db) );
+ float Y = 0.5f + (float)( fft_pane_size_h - (int)floor( (mpp - minf) * pixels_per_db) );
cairo_line_to(cr, X, Y );
mpp = -1000000.0;
cairo_move_to(cr, 0.5, fft_pane_size_h-0.5);
-
+
for (int x = 0; x < res->length(); x++) {
-
+
if (res->avgAt(x) > mpp)
mpp = res->avgAt(x);
- mpp = fmax(mpp, min);
- mpp = fmin(mpp, max);
-
+ mpp = fmax(mpp, minf);
+ mpp = fmin(mpp, maxf);
+
// If the next point on the log scale is at the same location,
// don't draw yet
if (x + 1 < res->length() && _logScale[x] == _logScale[x + 1]) {
continue;
}
- cairo_line_to(cr, 0.5f + (float)_logScale[x], 0.5f + (float)( fft_pane_size_h - (int)floor( (mpp - min) * pixels_per_db) ));
+ cairo_line_to(cr, 0.5f + (float)_logScale[x], 0.5f + (float)( fft_pane_size_h - (int)floor( (mpp - minf) * pixels_per_db) ));
mpp = -1000000.0;
}
{
width = alloc.get_width();
height = alloc.get_height();
-
+
update_size();
DrawingArea::on_size_allocate (alloc);
FFTGraph::update_size()
{
currentScaleWidth = width - h_margin*2;
- currentScaleHeight = height - 2 - v_margin*2;
+ currentScaleHeight = height - 2 - v_margin*2;
float SR = 44100;
float FFT_START = SR/(double)_dataSize;
projects / ardour.git / blobdiff