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spectrogram.c
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spectrogram.c
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/*
Spectrogram plugin for the DeaDBeeF audio player
Copyright (C) 2014 Christian Boxdörfer <christian.boxdoerfer@posteo.de>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <math.h>
#include <fcntl.h>
#include <gtk/gtk.h>
#include <fftw3.h>
#include <deadbeef/deadbeef.h>
#include <deadbeef/gtkui_api.h>
#include "fastftoi.h"
#define GRADIENT_TABLE_SIZE 2048
#define FFT_SIZE 8192
#define MAX_HEIGHT 22000
#define CONFSTR_SP_LOG_SCALE "spectrogram.log_scale"
#define CONFSTR_SP_REFRESH_INTERVAL "spectrogram.refresh_interval"
#define CONFSTR_SP_DB_RANGE "spectrogram.db_range"
#define CONFSTR_SP_NUM_COLORS "spectrogram.num_colors"
#define CONFSTR_SP_COLOR_GRADIENT_00 "spectrogram.color.gradient_00"
#define CONFSTR_SP_COLOR_GRADIENT_01 "spectrogram.color.gradient_01"
#define CONFSTR_SP_COLOR_GRADIENT_02 "spectrogram.color.gradient_02"
#define CONFSTR_SP_COLOR_GRADIENT_03 "spectrogram.color.gradient_03"
#define CONFSTR_SP_COLOR_GRADIENT_04 "spectrogram.color.gradient_04"
#define CONFSTR_SP_COLOR_GRADIENT_05 "spectrogram.color.gradient_05"
#define CONFSTR_SP_COLOR_GRADIENT_06 "spectrogram.color.gradient_06"
/* Global variables */
static DB_misc_t plugin;
static DB_functions_t * deadbeef = NULL;
static ddb_gtkui_t * gtkui_plugin = NULL;
typedef struct {
ddb_gtkui_widget_t base;
GtkWidget *drawarea;
GtkWidget *popup;
GtkWidget *popup_item;
guint drawtimer;
double *data;
double window[FFT_SIZE];
double *in;
//double *out_real;
fftw_complex *out_complex;
fftw_plan p_r2c;
//fftw_plan p_r2r;
uint32_t colors[GRADIENT_TABLE_SIZE];
double *samples;
int *log_index;
float samplerate;
int height;
int low_res_end;
int resized;
int buffered;
intptr_t mutex;
cairo_surface_t *surf;
} w_spectrogram_t;
static int CONFIG_LOG_SCALE = 1;
static int CONFIG_DB_RANGE = 70;
static int CONFIG_NUM_COLORS = 7;
static int CONFIG_REFRESH_INTERVAL = 25;
static GdkColor CONFIG_GRADIENT_COLORS[7];
static void
save_config (void)
{
deadbeef->conf_set_int (CONFSTR_SP_LOG_SCALE, CONFIG_LOG_SCALE);
deadbeef->conf_set_int (CONFSTR_SP_DB_RANGE, CONFIG_DB_RANGE);
deadbeef->conf_set_int (CONFSTR_SP_NUM_COLORS, CONFIG_NUM_COLORS);
deadbeef->conf_set_int (CONFSTR_SP_REFRESH_INTERVAL, CONFIG_REFRESH_INTERVAL);
char color[100];
snprintf (color, sizeof (color), "%d %d %d", CONFIG_GRADIENT_COLORS[0].red, CONFIG_GRADIENT_COLORS[0].green, CONFIG_GRADIENT_COLORS[0].blue);
deadbeef->conf_set_str (CONFSTR_SP_COLOR_GRADIENT_00, color);
snprintf (color, sizeof (color), "%d %d %d", CONFIG_GRADIENT_COLORS[1].red, CONFIG_GRADIENT_COLORS[1].green, CONFIG_GRADIENT_COLORS[1].blue);
deadbeef->conf_set_str (CONFSTR_SP_COLOR_GRADIENT_01, color);
snprintf (color, sizeof (color), "%d %d %d", CONFIG_GRADIENT_COLORS[2].red, CONFIG_GRADIENT_COLORS[2].green, CONFIG_GRADIENT_COLORS[2].blue);
deadbeef->conf_set_str (CONFSTR_SP_COLOR_GRADIENT_02, color);
snprintf (color, sizeof (color), "%d %d %d", CONFIG_GRADIENT_COLORS[3].red, CONFIG_GRADIENT_COLORS[3].green, CONFIG_GRADIENT_COLORS[3].blue);
deadbeef->conf_set_str (CONFSTR_SP_COLOR_GRADIENT_03, color);
snprintf (color, sizeof (color), "%d %d %d", CONFIG_GRADIENT_COLORS[4].red, CONFIG_GRADIENT_COLORS[4].green, CONFIG_GRADIENT_COLORS[4].blue);
deadbeef->conf_set_str (CONFSTR_SP_COLOR_GRADIENT_04, color);
snprintf (color, sizeof (color), "%d %d %d", CONFIG_GRADIENT_COLORS[5].red, CONFIG_GRADIENT_COLORS[5].green, CONFIG_GRADIENT_COLORS[5].blue);
deadbeef->conf_set_str (CONFSTR_SP_COLOR_GRADIENT_05, color);
snprintf (color, sizeof (color), "%d %d %d", CONFIG_GRADIENT_COLORS[6].red, CONFIG_GRADIENT_COLORS[6].green, CONFIG_GRADIENT_COLORS[6].blue);
deadbeef->conf_set_str (CONFSTR_SP_COLOR_GRADIENT_06, color);
}
static void
load_config (void)
{
deadbeef->conf_lock ();
CONFIG_LOG_SCALE = deadbeef->conf_get_int (CONFSTR_SP_LOG_SCALE, 1);
CONFIG_DB_RANGE = deadbeef->conf_get_int (CONFSTR_SP_DB_RANGE, 70);
CONFIG_NUM_COLORS = deadbeef->conf_get_int (CONFSTR_SP_NUM_COLORS, 7);
CONFIG_REFRESH_INTERVAL = deadbeef->conf_get_int (CONFSTR_SP_REFRESH_INTERVAL, 25);
const char *color;
color = deadbeef->conf_get_str_fast (CONFSTR_SP_COLOR_GRADIENT_00, "65535 0 0");
sscanf (color, "%hd %hd %hd", &(CONFIG_GRADIENT_COLORS[0].red), &(CONFIG_GRADIENT_COLORS[0].green), &(CONFIG_GRADIENT_COLORS[0].blue));
color = deadbeef->conf_get_str_fast (CONFSTR_SP_COLOR_GRADIENT_01, "65535 32896 0");
sscanf (color, "%hd %hd %hd", &(CONFIG_GRADIENT_COLORS[1].red), &(CONFIG_GRADIENT_COLORS[1].green), &(CONFIG_GRADIENT_COLORS[1].blue));
color = deadbeef->conf_get_str_fast (CONFSTR_SP_COLOR_GRADIENT_02, "65535 65535 0");
sscanf (color, "%hd %hd %hd", &(CONFIG_GRADIENT_COLORS[2].red), &(CONFIG_GRADIENT_COLORS[2].green), &(CONFIG_GRADIENT_COLORS[2].blue));
color = deadbeef->conf_get_str_fast (CONFSTR_SP_COLOR_GRADIENT_03, "32896 65535 30840");
sscanf (color, "%hd %hd %hd", &(CONFIG_GRADIENT_COLORS[3].red), &(CONFIG_GRADIENT_COLORS[3].green), &(CONFIG_GRADIENT_COLORS[3].blue));
color = deadbeef->conf_get_str_fast (CONFSTR_SP_COLOR_GRADIENT_04, "0 38036 41120");
sscanf (color, "%hd %hd %hd", &(CONFIG_GRADIENT_COLORS[4].red), &(CONFIG_GRADIENT_COLORS[4].green), &(CONFIG_GRADIENT_COLORS[4].blue));
color = deadbeef->conf_get_str_fast (CONFSTR_SP_COLOR_GRADIENT_05, "0 8224 25700");
sscanf (color, "%hd %hd %hd", &(CONFIG_GRADIENT_COLORS[5].red), &(CONFIG_GRADIENT_COLORS[5].green), &(CONFIG_GRADIENT_COLORS[5].blue));
color = deadbeef->conf_get_str_fast (CONFSTR_SP_COLOR_GRADIENT_06, "0 0 0");
sscanf (color, "%hd %hd %hd", &(CONFIG_GRADIENT_COLORS[6].red), &(CONFIG_GRADIENT_COLORS[6].green), &(CONFIG_GRADIENT_COLORS[6].blue));
deadbeef->conf_unlock ();
}
void
do_fft (w_spectrogram_t *w)
{
if (!w->samples || w->buffered < FFT_SIZE/2) {
return;
}
deadbeef->mutex_lock (w->mutex);
double real,imag;
for (int i = 0; i < FFT_SIZE; i++) {
w->in[i] = w->samples[i] * w->window[i];
}
deadbeef->mutex_unlock (w->mutex);
//fftw_execute (w->p_r2r);
fftw_execute (w->p_r2c);
for (int i = 0; i < FFT_SIZE/2; i++)
{
real = w->out_complex[i][0];
imag = w->out_complex[i][1];
w->data[i] = (real*real + imag*imag);
//w->data[i] = w->out_real[i]*w->out_real[i] + w->out_real[FFT_SIZE/2+i]*w->out_real[FFT_SIZE/2+i];
}
}
static inline void
_draw_point (uint8_t *data, int stride, int x0, int y0, uint32_t color) {
uint32_t *ptr = (uint32_t*)&data[y0*stride+x0*4];
*ptr = color;
}
/* based on Delphi function by Witold J.Janik */
void
create_gradient_table (gpointer user_data, GdkColor *colors, int num_colors)
{
w_spectrogram_t *w = user_data;
num_colors -= 1;
for (int i = 0; i < GRADIENT_TABLE_SIZE; i++) {
double position = (double)i/GRADIENT_TABLE_SIZE;
/* if position > 1 then we have repetition of colors it maybe useful */
if (position > 1.0) {
if (position - ftoi (position) == 0.0) {
position = 1.0;
}
else {
position = position - ftoi (position);
}
}
double m= num_colors * position;
int n=(int)m; // integer of m
double f=m-n; // fraction of m
w->colors[i] = 0xFF000000;
float scale = 255/65535.f;
if (num_colors == 0) {
w->colors[i] = ((uint32_t)(colors[0].red*scale) & 0xFF) << 16 |
((uint32_t)(colors[0].green*scale) & 0xFF) << 8 |
((uint32_t)(colors[0].blue*scale) & 0xFF) << 0;
}
else if (n < num_colors) {
w->colors[i] = ((uint32_t)((colors[n].red*scale) + f * ((colors[n+1].red*scale)-(colors[n].red*scale))) & 0xFF) << 16 |
((uint32_t)((colors[n].green*scale) + f * ((colors[n+1].green*scale)-(colors[n].green*scale))) & 0xFF) << 8 |
((uint32_t)((colors[n].blue*scale) + f * ((colors[n+1].blue*scale)-(colors[n].blue*scale))) & 0xFF) << 0;
}
else if (n == num_colors) {
w->colors[i] = ((uint32_t)(colors[n].red*scale) & 0xFF) << 16 |
((uint32_t)(colors[n].green*scale) & 0xFF) << 8 |
((uint32_t)(colors[n].blue*scale) & 0xFF) << 0;
}
else {
w->colors[i] = 0xFFFFFFFF;
}
}
}
static int
on_config_changed (gpointer user_data, uintptr_t ctx)
{
create_gradient_table (user_data, CONFIG_GRADIENT_COLORS, CONFIG_NUM_COLORS);
load_config ();
return 0;
}
#if !GTK_CHECK_VERSION(2,12,0)
#define gtk_widget_get_window(widget) ((widget)->window)
#define gtk_dialog_get_content_area(dialog) (dialog->vbox)
#define gtk_dialog_get_action_area(dialog) (dialog->action_area)
#endif
#if !GTK_CHECK_VERSION(2,18,0)
void
gtk_widget_get_allocation (GtkWidget *widget, GtkAllocation *allocation) {
(allocation)->x = widget->allocation.x;
(allocation)->y = widget->allocation.y;
(allocation)->width = widget->allocation.width;
(allocation)->height = widget->allocation.height;
}
#define gtk_widget_set_can_default(widget, candefault) {if (candefault) GTK_WIDGET_SET_FLAGS (widget, GTK_CAN_DEFAULT); else GTK_WIDGET_UNSET_FLAGS(widget, GTK_CAN_DEFAULT);}
#endif
static void
on_button_config (GtkMenuItem *menuitem, gpointer user_data)
{
GtkWidget *spectrogram_properties;
GtkWidget *config_dialog;
GtkWidget *vbox01;
GtkWidget *vbox02;
GtkWidget *hbox01;
//GtkWidget *hbox02;
GtkWidget *hbox03;
GtkWidget *color_label;
GtkWidget *color_frame;
GtkWidget *color_gradient_00;
GtkWidget *color_gradient_01;
GtkWidget *color_gradient_02;
GtkWidget *color_gradient_03;
GtkWidget *color_gradient_04;
GtkWidget *color_gradient_05;
GtkWidget *color_gradient_06;
GtkWidget *num_colors_label;
GtkWidget *num_colors;
GtkWidget *log_scale;
GtkWidget *db_range_label0;
GtkWidget *db_range;
GtkWidget *dialog_action_area13;
GtkWidget *applybutton1;
GtkWidget *cancelbutton1;
GtkWidget *okbutton1;
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
spectrogram_properties = gtk_dialog_new ();
gtk_window_set_title (GTK_WINDOW (spectrogram_properties), "Spectrogram Properties");
gtk_window_set_type_hint (GTK_WINDOW (spectrogram_properties), GDK_WINDOW_TYPE_HINT_DIALOG);
config_dialog = gtk_dialog_get_content_area (GTK_DIALOG (spectrogram_properties));
gtk_widget_show (config_dialog);
hbox01 = gtk_hbox_new (FALSE, 8);
gtk_widget_show (hbox01);
gtk_box_pack_start (GTK_BOX (config_dialog), hbox01, FALSE, FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (hbox01), 12);
color_label = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL (color_label),"<b>Colors</b>");
gtk_widget_show (color_label);
color_frame = gtk_frame_new ("Colors");
gtk_frame_set_label_widget ((GtkFrame *)color_frame, color_label);
gtk_frame_set_shadow_type ((GtkFrame *)color_frame, GTK_SHADOW_IN);
gtk_widget_show (color_frame);
gtk_box_pack_start (GTK_BOX (hbox01), color_frame, TRUE, FALSE, 0);
vbox02 = gtk_vbox_new (FALSE, 8);
gtk_widget_show (vbox02);
gtk_container_add (GTK_CONTAINER (color_frame), vbox02);
gtk_container_set_border_width (GTK_CONTAINER (vbox02), 12);
num_colors_label = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL (num_colors_label),"Number of colors:");
gtk_widget_show (num_colors_label);
gtk_box_pack_start (GTK_BOX (vbox02), num_colors_label, FALSE, FALSE, 0);
num_colors = gtk_spin_button_new_with_range (1,7,1);
gtk_widget_show (num_colors);
gtk_box_pack_start (GTK_BOX (vbox02), num_colors, FALSE, FALSE, 0);
color_gradient_00 = gtk_color_button_new ();
gtk_color_button_set_use_alpha ((GtkColorButton *)color_gradient_00, TRUE);
gtk_widget_show (color_gradient_00);
gtk_box_pack_start (GTK_BOX (vbox02), color_gradient_00, TRUE, FALSE, 0);
gtk_widget_set_size_request (color_gradient_00, -1, 30);
color_gradient_01 = gtk_color_button_new ();
gtk_color_button_set_use_alpha ((GtkColorButton *)color_gradient_01, TRUE);
gtk_widget_show (color_gradient_01);
gtk_box_pack_start (GTK_BOX (vbox02), color_gradient_01, TRUE, FALSE, 0);
gtk_widget_set_size_request (color_gradient_01, -1, 30);
color_gradient_02 = gtk_color_button_new ();
gtk_color_button_set_use_alpha ((GtkColorButton *)color_gradient_02, TRUE);
gtk_widget_show (color_gradient_02);
gtk_box_pack_start (GTK_BOX (vbox02), color_gradient_02, TRUE, FALSE, 0);
gtk_widget_set_size_request (color_gradient_02, -1, 30);
color_gradient_03 = gtk_color_button_new ();
gtk_color_button_set_use_alpha ((GtkColorButton *)color_gradient_03, TRUE);
gtk_widget_show (color_gradient_03);
gtk_box_pack_start (GTK_BOX (vbox02), color_gradient_03, TRUE, FALSE, 0);
gtk_widget_set_size_request (color_gradient_03, -1, 30);
color_gradient_04 = gtk_color_button_new ();
gtk_color_button_set_use_alpha ((GtkColorButton *)color_gradient_04, TRUE);
gtk_widget_show (color_gradient_04);
gtk_box_pack_start (GTK_BOX (vbox02), color_gradient_04, TRUE, FALSE, 0);
gtk_widget_set_size_request (color_gradient_04, -1, 30);
color_gradient_05 = gtk_color_button_new ();
gtk_color_button_set_use_alpha ((GtkColorButton *)color_gradient_05, TRUE);
gtk_widget_show (color_gradient_05);
gtk_box_pack_start (GTK_BOX (vbox02), color_gradient_05, TRUE, FALSE, 0);
gtk_widget_set_size_request (color_gradient_05, -1, 30);
color_gradient_06 = gtk_color_button_new ();
gtk_color_button_set_use_alpha ((GtkColorButton *)color_gradient_06, TRUE);
gtk_widget_show (color_gradient_06);
gtk_box_pack_start (GTK_BOX (vbox02), color_gradient_06, TRUE, FALSE, 0);
gtk_widget_set_size_request (color_gradient_06, -1, 30);
vbox01 = gtk_vbox_new (FALSE, 8);
gtk_widget_show (vbox01);
gtk_box_pack_start (GTK_BOX (hbox01), vbox01, FALSE, FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (vbox01), 12);
//hbox02 = gtk_hbox_new (FALSE, 8);
//gtk_widget_show (hbox02);
//gtk_box_pack_start (GTK_BOX (vbox01), hbox02, FALSE, FALSE, 0);
//gtk_container_set_border_width (GTK_CONTAINER (hbox01), 12);
hbox03 = gtk_hbox_new (FALSE, 8);
gtk_widget_show (hbox03);
gtk_box_pack_start (GTK_BOX (vbox01), hbox03, FALSE, FALSE, 0);
db_range_label0 = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL (db_range_label0),"dB range:");
gtk_widget_show (db_range_label0);
gtk_box_pack_start (GTK_BOX (hbox03), db_range_label0, FALSE, TRUE, 0);
db_range = gtk_spin_button_new_with_range (50,120,10);
gtk_widget_show (db_range);
gtk_box_pack_start (GTK_BOX (hbox03), db_range, TRUE, TRUE, 0);
log_scale = gtk_check_button_new_with_label ("Log scale");
gtk_widget_show (log_scale);
gtk_box_pack_start (GTK_BOX (vbox01), log_scale, FALSE, FALSE, 0);
dialog_action_area13 = gtk_dialog_get_action_area (GTK_DIALOG (spectrogram_properties));
gtk_widget_show (dialog_action_area13);
gtk_button_box_set_layout (GTK_BUTTON_BOX (dialog_action_area13), GTK_BUTTONBOX_END);
applybutton1 = gtk_button_new_from_stock ("gtk-apply");
gtk_widget_show (applybutton1);
gtk_dialog_add_action_widget (GTK_DIALOG (spectrogram_properties), applybutton1, GTK_RESPONSE_APPLY);
gtk_widget_set_can_default (applybutton1, TRUE);
cancelbutton1 = gtk_button_new_from_stock ("gtk-cancel");
gtk_widget_show (cancelbutton1);
gtk_dialog_add_action_widget (GTK_DIALOG (spectrogram_properties), cancelbutton1, GTK_RESPONSE_CANCEL);
gtk_widget_set_can_default (cancelbutton1, TRUE);
okbutton1 = gtk_button_new_from_stock ("gtk-ok");
gtk_widget_show (okbutton1);
gtk_dialog_add_action_widget (GTK_DIALOG (spectrogram_properties), okbutton1, GTK_RESPONSE_OK);
gtk_widget_set_can_default (okbutton1, TRUE);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (log_scale), CONFIG_LOG_SCALE);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (num_colors), CONFIG_NUM_COLORS);
gtk_spin_button_set_value (GTK_SPIN_BUTTON (db_range), CONFIG_DB_RANGE);
gtk_color_button_set_color (GTK_COLOR_BUTTON (color_gradient_00), &(CONFIG_GRADIENT_COLORS[0]));
gtk_color_button_set_color (GTK_COLOR_BUTTON (color_gradient_01), &(CONFIG_GRADIENT_COLORS[1]));
gtk_color_button_set_color (GTK_COLOR_BUTTON (color_gradient_02), &(CONFIG_GRADIENT_COLORS[2]));
gtk_color_button_set_color (GTK_COLOR_BUTTON (color_gradient_03), &(CONFIG_GRADIENT_COLORS[3]));
gtk_color_button_set_color (GTK_COLOR_BUTTON (color_gradient_04), &(CONFIG_GRADIENT_COLORS[4]));
gtk_color_button_set_color (GTK_COLOR_BUTTON (color_gradient_05), &(CONFIG_GRADIENT_COLORS[5]));
gtk_color_button_set_color (GTK_COLOR_BUTTON (color_gradient_06), &(CONFIG_GRADIENT_COLORS[6]));
switch (CONFIG_NUM_COLORS) {
case 1:
gtk_widget_hide (color_gradient_01);
gtk_widget_hide (color_gradient_02);
gtk_widget_hide (color_gradient_03);
gtk_widget_hide (color_gradient_04);
gtk_widget_hide (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 2:
gtk_widget_show (color_gradient_01);
gtk_widget_hide (color_gradient_02);
gtk_widget_hide (color_gradient_03);
gtk_widget_hide (color_gradient_04);
gtk_widget_hide (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 3:
gtk_widget_show (color_gradient_01);
gtk_widget_show (color_gradient_02);
gtk_widget_hide (color_gradient_03);
gtk_widget_hide (color_gradient_04);
gtk_widget_hide (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 4:
gtk_widget_show (color_gradient_01);
gtk_widget_show (color_gradient_02);
gtk_widget_show (color_gradient_03);
gtk_widget_hide (color_gradient_04);
gtk_widget_hide (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 5:
gtk_widget_show (color_gradient_01);
gtk_widget_show (color_gradient_02);
gtk_widget_show (color_gradient_03);
gtk_widget_show (color_gradient_04);
gtk_widget_hide (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 6:
gtk_widget_show (color_gradient_01);
gtk_widget_show (color_gradient_02);
gtk_widget_show (color_gradient_03);
gtk_widget_show (color_gradient_04);
gtk_widget_show (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 7:
gtk_widget_show (color_gradient_01);
gtk_widget_show (color_gradient_02);
gtk_widget_show (color_gradient_03);
gtk_widget_show (color_gradient_04);
gtk_widget_show (color_gradient_05);
gtk_widget_show (color_gradient_06);
break;
}
for (;;) {
int response = gtk_dialog_run (GTK_DIALOG (spectrogram_properties));
if (response == GTK_RESPONSE_OK || response == GTK_RESPONSE_APPLY) {
gtk_color_button_get_color (GTK_COLOR_BUTTON (color_gradient_00), &CONFIG_GRADIENT_COLORS[0]);
gtk_color_button_get_color (GTK_COLOR_BUTTON (color_gradient_01), &CONFIG_GRADIENT_COLORS[1]);
gtk_color_button_get_color (GTK_COLOR_BUTTON (color_gradient_02), &CONFIG_GRADIENT_COLORS[2]);
gtk_color_button_get_color (GTK_COLOR_BUTTON (color_gradient_03), &CONFIG_GRADIENT_COLORS[3]);
gtk_color_button_get_color (GTK_COLOR_BUTTON (color_gradient_04), &CONFIG_GRADIENT_COLORS[4]);
gtk_color_button_get_color (GTK_COLOR_BUTTON (color_gradient_05), &CONFIG_GRADIENT_COLORS[5]);
gtk_color_button_get_color (GTK_COLOR_BUTTON (color_gradient_06), &CONFIG_GRADIENT_COLORS[6]);
CONFIG_LOG_SCALE = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (log_scale));
CONFIG_DB_RANGE = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (db_range));
CONFIG_NUM_COLORS = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (num_colors));
switch (CONFIG_NUM_COLORS) {
case 1:
gtk_widget_hide (color_gradient_01);
gtk_widget_hide (color_gradient_02);
gtk_widget_hide (color_gradient_03);
gtk_widget_hide (color_gradient_04);
gtk_widget_hide (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 2:
gtk_widget_show (color_gradient_01);
gtk_widget_hide (color_gradient_02);
gtk_widget_hide (color_gradient_03);
gtk_widget_hide (color_gradient_04);
gtk_widget_hide (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 3:
gtk_widget_show (color_gradient_01);
gtk_widget_show (color_gradient_02);
gtk_widget_hide (color_gradient_03);
gtk_widget_hide (color_gradient_04);
gtk_widget_hide (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 4:
gtk_widget_show (color_gradient_01);
gtk_widget_show (color_gradient_02);
gtk_widget_show (color_gradient_03);
gtk_widget_hide (color_gradient_04);
gtk_widget_hide (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 5:
gtk_widget_show (color_gradient_01);
gtk_widget_show (color_gradient_02);
gtk_widget_show (color_gradient_03);
gtk_widget_show (color_gradient_04);
gtk_widget_hide (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 6:
gtk_widget_show (color_gradient_01);
gtk_widget_show (color_gradient_02);
gtk_widget_show (color_gradient_03);
gtk_widget_show (color_gradient_04);
gtk_widget_show (color_gradient_05);
gtk_widget_hide (color_gradient_06);
break;
case 7:
gtk_widget_show (color_gradient_01);
gtk_widget_show (color_gradient_02);
gtk_widget_show (color_gradient_03);
gtk_widget_show (color_gradient_04);
gtk_widget_show (color_gradient_05);
gtk_widget_show (color_gradient_06);
break;
}
save_config ();
deadbeef->sendmessage (DB_EV_CONFIGCHANGED, 0, 0, 0);
}
if (response == GTK_RESPONSE_APPLY) {
continue;
}
break;
}
gtk_widget_destroy (spectrogram_properties);
#pragma GCC diagnostic pop
return;
}
void
w_spectrogram_destroy (ddb_gtkui_widget_t *w) {
w_spectrogram_t *s = (w_spectrogram_t *)w;
deadbeef->vis_waveform_unlisten (w);
if (s->data) {
free (s->data);
s->data = NULL;
}
if (s->samples) {
free (s->samples);
s->samples = NULL;
}
if (s->log_index) {
free (s->log_index);
s->log_index = NULL;
}
//if (s->p_r2r) {
// fftw_destroy_plan (s->p_r2r);
//}
if (s->p_r2c) {
fftw_destroy_plan (s->p_r2c);
}
if (s->in) {
fftw_free (s->in);
s->in = NULL;
}
//if (s->out_real) {
// fftw_free (s->out_real);
// s->out_real = NULL;
//}
if (s->out_complex) {
fftw_free (s->out_complex);
s->out_complex = NULL;
}
if (s->drawtimer) {
g_source_remove (s->drawtimer);
s->drawtimer = 0;
}
if (s->surf) {
cairo_surface_destroy (s->surf);
s->surf = NULL;
}
if (s->mutex) {
deadbeef->mutex_free (s->mutex);
s->mutex = 0;
}
}
gboolean
w_spectrogram_draw_cb (void *data) {
w_spectrogram_t *s = data;
gtk_widget_queue_draw (s->drawarea);
return TRUE;
}
static void
spectrogram_wavedata_listener (void *ctx, ddb_audio_data_t *data) {
w_spectrogram_t *w = ctx;
if (!w->samples) {
return;
}
deadbeef->mutex_lock (w->mutex);
w->samplerate = (float)data->fmt->samplerate;
int nsamples = data->nframes;
int sz = MIN (FFT_SIZE, nsamples);
int n = FFT_SIZE - sz;
memmove (w->samples, w->samples + sz, (FFT_SIZE - sz)*sizeof (double));
float pos = 0;
for (int i = 0; i < sz && pos < nsamples; i++, pos ++) {
w->samples[n+i] = -1000.0;
for (int j = 0; j < data->fmt->channels; j++) {
w->samples[n + i] = MAX (w->samples[n + i], data->data[ftoi (pos * data->fmt->channels) + j]);
}
}
deadbeef->mutex_unlock (w->mutex);
if (w->buffered < FFT_SIZE) {
w->buffered += sz;
}
}
static inline float
spectrogram_get_value (gpointer user_data, int start, int end)
{
w_spectrogram_t *w = user_data;
if (start >= end) {
return w->data[end];
}
float value = 0.0;
for (int i = start; i < end; i++) {
value = MAX (w->data[i],value);
}
return value;
}
static inline float
linear_interpolate (float y1, float y2, float mu)
{
return (y1 * (1 - mu) + y2 * mu);
}
static gboolean
spectrogram_draw (GtkWidget *widget, cairo_t *cr, gpointer user_data) {
w_spectrogram_t *w = user_data;
GtkAllocation a;
gtk_widget_get_allocation (widget, &a);
if (!w->samples || a.height < 1) {
return FALSE;
}
int width, height;
width = a.width;
height = a.height;
int ratio = ftoi (FFT_SIZE/(a.height*2));
ratio = CLAMP (ratio,0,1023);
if (deadbeef->get_output ()->state () == OUTPUT_STATE_PLAYING) {
do_fft (w);
float log_scale = (log2f(w->samplerate/2)-log2f(25.))/(a.height);
float freq_res = w->samplerate / FFT_SIZE;
if (a.height != w->height) {
w->height = MIN (a.height, MAX_HEIGHT);
for (int i = 0; i < w->height; i++) {
w->log_index[i] = ftoi (powf(2.,((float)i) * log_scale + log2f(25.)) / freq_res);
if (i > 0 && w->log_index[i-1] == w->log_index [i]) {
w->low_res_end = i;
}
}
}
}
// start drawing
if (!w->surf || cairo_image_surface_get_width (w->surf) != a.width || cairo_image_surface_get_height (w->surf) != a.height) {
if (w->surf) {
cairo_surface_destroy (w->surf);
w->surf = NULL;
}
w->surf = cairo_image_surface_create (CAIRO_FORMAT_RGB24, a.width, a.height);
}
cairo_surface_flush (w->surf);
unsigned char *data = cairo_image_surface_get_data (w->surf);
if (!data) {
return FALSE;
}
int stride = cairo_image_surface_get_stride (w->surf);
if (deadbeef->get_output ()->state () == OUTPUT_STATE_PLAYING) {
for (int i = 0; i < a.height; i++) {
// scrolling: move line i 1px to the left
memmove (data + (i*stride), data + sizeof (uint32_t) + (i*stride), stride - sizeof (uint32_t));
}
for (int i = 0; i < a.height; i++)
{
float f = 1.0;
int index0, index1;
int bin0, bin1, bin2;
if (CONFIG_LOG_SCALE) {
bin0 = w->log_index[CLAMP (i-1,0,height-1)];
bin1 = w->log_index[i];
bin2 = w->log_index[CLAMP (i+1,0,height-1)];
}
else {
bin0 = (i-1) * ratio;
bin1 = i * ratio;
bin2 = (i+1) * ratio;
}
index0 = bin0 + ftoi ((bin1 - bin0)/2.f);
if (index0 == bin0) index0 = bin1;
index1 = bin1 + ftoi ((bin2 - bin1)/2.f);
if (index1 == bin2) index1 = bin1;
index0 = CLAMP (index0,0,FFT_SIZE/2-1);
index1 = CLAMP (index1,0,FFT_SIZE/2-1);
f = spectrogram_get_value (w, index0, index1);
float x = 10 * log10f (f);
// interpolate
if (i <= w->low_res_end && CONFIG_LOG_SCALE) {
int j = 0;
// find index of next value
while (i+j < height && w->log_index[i+j] == w->log_index[i]) {
j++;
}
float v0 = x;
float v1 = w->data[w->log_index[i+j]];
if (v1 != 0) {
// Log Scale Frequency
//v1 = 10 * log10f (v1);
// Mel Scale Frequency
v1 = 10 * ( 1127 * log10f ( 1 + ( v1 / 700 ) ) );
// TODO: Add more frequency scale functions and options to select them
}
int k = 0;
while ((k+i) >= 0 && w->log_index[k+i] == w->log_index[i]) {
j++;
k--;
}
x = linear_interpolate (v0,v1,(1.0/(j-1)) * ((-1 * k) - 1));
}
// TODO: get rid of hardcoding
x += CONFIG_DB_RANGE - 63;
x = CLAMP (x, 0, CONFIG_DB_RANGE);
int color_index = GRADIENT_TABLE_SIZE - ftoi (GRADIENT_TABLE_SIZE/(float)CONFIG_DB_RANGE * x);
color_index = CLAMP (color_index, 0, GRADIENT_TABLE_SIZE-1);
_draw_point (data, stride, width-1, height-1-i, w->colors[color_index]);
}
}
cairo_surface_mark_dirty (w->surf);
cairo_save (cr);
cairo_set_source_surface (cr, w->surf, 0, 0);
cairo_rectangle (cr, 0, 0, a.width, a.height);
cairo_fill (cr);
cairo_restore (cr);
return FALSE;
}
gboolean
spectrogram_expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer user_data) {
cairo_t *cr = gdk_cairo_create (gtk_widget_get_window (widget));
gboolean res = spectrogram_draw (widget, cr, user_data);
cairo_destroy (cr);
return res;
}
gboolean
spectrogram_button_press_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
//w_spectrogram_t *w = user_data;
if (event->button == 3) {
return TRUE;
}
return TRUE;
}
gboolean
spectrogram_button_release_event (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
w_spectrogram_t *w = user_data;
if (event->button == 3) {
gtk_menu_popup (GTK_MENU (w->popup), NULL, NULL, NULL, w->drawarea, 0, gtk_get_current_event_time ());
return TRUE;
}
return TRUE;
}
static gboolean
spectrogram_set_refresh_interval (gpointer user_data, int interval)
{
w_spectrogram_t *w = user_data;
if (!w || interval <= 0) {
return FALSE;
}
if (w->drawtimer) {
g_source_remove (w->drawtimer);
w->drawtimer = 0;
}
w->drawtimer = g_timeout_add (interval, w_spectrogram_draw_cb, w);
return TRUE;
}
static int
spectrogram_message (ddb_gtkui_widget_t *widget, uint32_t id, uintptr_t ctx, uint32_t p1, uint32_t p2)
{
w_spectrogram_t *w = (w_spectrogram_t *)widget;
switch (id) {
case DB_EV_CONFIGCHANGED:
on_config_changed (w, ctx);
spectrogram_set_refresh_interval (w, CONFIG_REFRESH_INTERVAL);
break;
case DB_EV_SONGSTARTED:
spectrogram_set_refresh_interval (w, CONFIG_REFRESH_INTERVAL);
break;
case DB_EV_PAUSED:
if (deadbeef->get_output ()->state () == OUTPUT_STATE_PLAYING) {
spectrogram_set_refresh_interval (w, CONFIG_REFRESH_INTERVAL);
}
else {
if (w->drawtimer) {
g_source_remove (w->drawtimer);
w->drawtimer = 0;
}
}
break;
case DB_EV_STOP:
if (w->drawtimer) {
g_source_remove (w->drawtimer);
w->drawtimer = 0;
}
break;
}
return 0;
}
void
w_spectrogram_init (ddb_gtkui_widget_t *w) {
w_spectrogram_t *s = (w_spectrogram_t *)w;
load_config ();
deadbeef->mutex_lock (s->mutex);
s->samples = malloc (sizeof (double) * FFT_SIZE);
memset (s->samples, 0, sizeof (double) * FFT_SIZE);
s->data = malloc (sizeof (double) * FFT_SIZE);
memset (s->data, 0, sizeof (double) * FFT_SIZE);
if (s->drawtimer) {
g_source_remove (s->drawtimer);
s->drawtimer = 0;
}
s->samplerate = 44100.0;
s->height = 0;
s->low_res_end = 0;
s->log_index = (int *)malloc (sizeof (int) * MAX_HEIGHT);
memset (s->log_index, 0, sizeof (int) * MAX_HEIGHT);
for (int i = 0; i < FFT_SIZE; i++) {
// Hanning
//s->window[i] = (0.5 * (1 - cos (2 * M_PI * i/(FFT_SIZE-1))));
// Blackman-Harris
//s->window[i] = 0.35875 - 0.48829 * cos(2 * M_PI * i /(FFT_SIZE)) + 0.14128 * cos(4 * M_PI * i/(FFT_SIZE)) - 0.01168 * cos(6 * M_PI * i/(FFT_SIZE));;
// Gaussian (a=0.45)
s->window[i] = exp(pow(-0.5 * ((i - (FFT_SIZE / 2) ) / ( 0.45 * (FFT_SIZE / 2))),2));
// TODO: Add more window functions and options to select them
}
create_gradient_table (s, CONFIG_GRADIENT_COLORS, CONFIG_NUM_COLORS);
s->in = fftw_malloc (sizeof (double) * FFT_SIZE);
memset (s->in, 0, sizeof (double) * FFT_SIZE);
//s->out_real = fftw_malloc (sizeof (double) * FFT_SIZE);
s->out_complex = fftw_malloc (sizeof (fftw_complex) * FFT_SIZE);
//s->p_r2r = fftw_plan_r2r_1d (FFT_SIZE, s->in, s->out_real, FFTW_R2HC, FFTW_ESTIMATE);
s->p_r2c = fftw_plan_dft_r2c_1d (FFT_SIZE, s->in, s->out_complex, FFTW_ESTIMATE);
spectrogram_set_refresh_interval (s, CONFIG_REFRESH_INTERVAL);
deadbeef->mutex_unlock (s->mutex);
}
ddb_gtkui_widget_t *
w_spectrogram_create (void) {
w_spectrogram_t *w = malloc (sizeof (w_spectrogram_t));
memset (w, 0, sizeof (w_spectrogram_t));
w->base.widget = gtk_event_box_new ();
w->base.init = w_spectrogram_init;
w->base.destroy = w_spectrogram_destroy;
w->base.message = spectrogram_message;
w->drawarea = gtk_drawing_area_new ();
w->popup = gtk_menu_new ();
w->popup_item = gtk_menu_item_new_with_mnemonic ("Configure");
w->mutex = deadbeef->mutex_create ();
gtk_widget_show (w->drawarea);
gtk_container_add (GTK_CONTAINER (w->base.widget), w->drawarea);
gtk_widget_show (w->popup);
//gtk_container_add (GTK_CONTAINER (w->drawarea), w->popup);
gtk_widget_show (w->popup_item);
gtk_container_add (GTK_CONTAINER (w->popup), w->popup_item);
#if !GTK_CHECK_VERSION(3,0,0)
g_signal_connect_after ((gpointer) w->drawarea, "expose_event", G_CALLBACK (spectrogram_expose_event), w);
#else
g_signal_connect_after ((gpointer) w->drawarea, "draw", G_CALLBACK (spectrogram_draw), w);
#endif
g_signal_connect_after ((gpointer) w->base.widget, "button_press_event", G_CALLBACK (spectrogram_button_press_event), w);
g_signal_connect_after ((gpointer) w->base.widget, "button_release_event", G_CALLBACK (spectrogram_button_release_event), w);
g_signal_connect_after ((gpointer) w->popup_item, "activate", G_CALLBACK (on_button_config), w);
gtkui_plugin->w_override_signals (w->base.widget, w);
deadbeef->vis_waveform_listen (w, spectrogram_wavedata_listener);
return (ddb_gtkui_widget_t *)w;
}
int
spectrogram_connect (void)
{
gtkui_plugin = (ddb_gtkui_t *) deadbeef->plug_get_for_id (DDB_GTKUI_PLUGIN_ID);
if (gtkui_plugin) {
//trace("using '%s' plugin %d.%d\n", DDB_GTKUI_PLUGIN_ID, gtkui_plugin->gui.plugin.version_major, gtkui_plugin->gui.plugin.version_minor );
if (gtkui_plugin->gui.plugin.version_major == 2) {
//printf ("fb api2\n");
// 0.6+, use the new widget API
gtkui_plugin->w_reg_widget ("Spectrogram", 0, w_spectrogram_create, "spectrogram", NULL);
return 0;
}
}
return -1;
}
int
spectrogram_start (void)
{
load_config ();
return 0;
}
int
spectrogram_stop (void)
{
save_config ();
return 0;
}
int
spectrogram_startup (GtkWidget *cont)
{
return 0;
}
int
spectrogram_shutdown (GtkWidget *cont)
{
return 0;
}
int
spectrogram_disconnect (void)
{
gtkui_plugin = NULL;
return 0;
}
static const char settings_dlg[] =
"property \"Refresh interval (ms): \" spinbtn[10,1000,1] " CONFSTR_SP_REFRESH_INTERVAL " 25 ;\n"
;
static DB_misc_t plugin = {
//DB_PLUGIN_SET_API_VERSION
.plugin.type = DB_PLUGIN_MISC,
.plugin.api_vmajor = 1,
.plugin.api_vminor = 5,
.plugin.version_major = 0,
.plugin.version_minor = 1,
#if GTK_CHECK_VERSION(3,0,0)
.plugin.id = "spectrogram-gtk3",
#else
.plugin.id = "spectrogram",
#endif
.plugin.name = "Spectrogram",
.plugin.descr = "Spectrogram",
.plugin.copyright =
"Copyright (C) 2013 Christian Boxdörfer <christian.boxdoerfer@posteo.de>\n"
"\n"
"This program is free software; you can redistribute it and/or\n"
"modify it under the terms of the GNU General Public License\n"
"as published by the Free Software Foundation; either version 2\n"
"of the License, or (at your option) any later version.\n"
"\n"