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waveform.c
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/*
Waveform seekbar plugin for the DeaDBeeF audio player
Copyright (C) 2014 Christian Boxdörfer <[email protected]>
Based on sndfile-tools waveform by Erik de Castro Lopo.
waveform.c - v1.04
Copyright (C) 2007-2012 Erik de Castro Lopo <[email protected]>
Copyright (C) 2012 Robin Gareus <[email protected]>
Copyright (C) 2013 driedfruit <[email protected]>
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 <stdint.h>
#include <string.h>
#include <assert.h>
#include <math.h>
#include <fcntl.h>
#include <gtk/gtk.h>
#include <deadbeef/deadbeef.h>
#include <deadbeef/gtkui_api.h>
#include "support.h"
#include "cache.h"
#include "config.h"
#include "config_dialog.h"
#include "utils.h"
#include "waveform.h"
#include "render.h"
#include "ruler.h"
#define W_COLOR(X) (X)->r, (X)->g, (X)->b, (X)->a
//#define M_PI (3.1415926535897932384626433832795029)
// min, max, rms
#define VALUES_PER_SAMPLE (3)
#define MAX_CHANNELS (6)
#define MAX_SAMPLES (4096)
#define DISTANCE_THRESHOLD (100)
/* Global variables */
DB_functions_t *deadbeef = NULL;
static DB_misc_t plugin;
static ddb_gtkui_t *gtkui_plugin = NULL;
static char cache_path[PATH_MAX];
enum PLAYBACK_STATUS { STOPPED = 0, PLAYING = 1, PAUSED = 2 };
static int playback_status = STOPPED;
static int waveform_instancecount;
typedef struct
{
ddb_gtkui_widget_t base;
GtkWidget *popup;
GtkWidget *popup_item;
GtkWidget *drawarea;
GtkWidget *ruler;
GtkWidget *frame;
guint drawtimer;
guint resizetimer;
wavedata_t *wave;
waveform_colors_t colors;
waveform_colors_t colors_shaded;
size_t max_buffer_len;
int seekbar_moving;
float seekbar_move_x;
float seekbar_move_x_clicked;
float height;
float width;
intptr_t mutex;
cairo_surface_t *surf;
cairo_surface_t *surf_shaded;
} waveform_t;
typedef struct
{
double x;
double y;
} waveform_point_t;
typedef struct
{
double x1, y1;
double x2, y2;
} waveform_line_t;
static gboolean
waveform_draw_cb (void *user_data);
static gboolean
waveform_redraw_cb (void *user_data);
static void
waveform_draw (void *user_data, int shaded);
static gboolean
waveform_set_refresh_interval (void *user_data, int interval);
static color_t
waveform_color_contrast (color_t *color)
{
// Counting the perceptive luminance - human eye favors green color...
double a = 1.0 - ( 2.0 * color->r + 3.0 * color->g + color->b) / 6.0;
if (a < 0.5)
a = 0.0; // bright colors - black font
else
a = 1.0; // dark colors - white font
color_t color_cont = {
.r = a,
.g = a,
.b = a,
.a = 1.0,
};
return color_cont;
}
static void
waveform_colors_update (waveform_t *w)
{
w->colors.fg = (color_t) {
CONFIG_FG_COLOR.red/65535.f,
CONFIG_FG_COLOR.green/65535.f,
CONFIG_FG_COLOR.blue/65535.f,
1.0
};
w->colors.bg = (color_t) {
CONFIG_BG_COLOR.red/65535.f,
CONFIG_BG_COLOR.green/65535.f,
CONFIG_BG_COLOR.blue/65535.f,
1.0
};
w->colors.rms = (color_t) {
CONFIG_FG_RMS_COLOR.red/65535.f,
CONFIG_FG_RMS_COLOR.green/65535.f,
CONFIG_FG_RMS_COLOR.blue/65535.f,
1.0
};
w->colors.pb = (color_t) {
CONFIG_PB_COLOR.red/65535.f,
CONFIG_PB_COLOR.green/65535.f,
CONFIG_PB_COLOR.blue/65535.f,
1.0
};
w->colors.font = waveform_color_contrast (&w->colors.bg);
w->colors.font_pb = waveform_color_contrast (&w->colors.pb);
w->colors_shaded.fg = w->colors.pb;
w->colors_shaded.bg = w->colors.bg;
w->colors_shaded.pb = w->colors.pb;
w->colors_shaded.pb.a = CONFIG_PB_ALPHA/65535.f;
w->colors_shaded.rms = (color_t) {
0.8 * w->colors.pb.r,
0.8 * w->colors.pb.g,
0.8 * w->colors.pb.b,
1.0
};
}
static int
on_config_changed (void *widget)
{
waveform_t *w = (waveform_t *) widget;
load_config ();
waveform_colors_update (w);
// enable/disable border
switch (CONFIG_BORDER_WIDTH) {
case 0:
gtk_frame_set_shadow_type ((GtkFrame *)w->frame, GTK_SHADOW_NONE);
break;
case 1:
gtk_frame_set_shadow_type ((GtkFrame *)w->frame, GTK_SHADOW_IN);
break;
}
switch (CONFIG_DISPLAY_RULER) {
case 0:
gtk_widget_hide (w->ruler);
break;
case 1:
gtk_widget_show (w->ruler);
break;
}
waveform_set_refresh_interval (w, CONFIG_REFRESH_INTERVAL);
g_idle_add (waveform_redraw_cb, w);
return 0;
}
static void
make_cache_dir (char *path, int size)
{
const char *cache_dir = g_get_user_cache_dir ();
if (cache_dir) {
snprintf (path, size, "%s/deadbeef/waveform_seekbar", cache_dir);
g_mkdir_with_parents (path, 0755);
}
}
static char *
waveform_format_uri (DB_playItem_t *it, const char *uri)
{
if (!it || !uri) {
return NULL;
}
const int key_len = strlen (uri) + 10;
char *key = malloc (key_len);
if (deadbeef->pl_get_item_flags (it) & DDB_IS_SUBTRACK) {
int subtrack = deadbeef->pl_find_meta_int (it, ":TRACKNUM", 0);
snprintf (key, key_len, "%d%s", subtrack, uri);
}
else {
snprintf (key, key_len, "%s", uri);
}
return key;
}
enum BORDERS
{
CORNER_NONE = 0,
CORNER_TOPLEFT = 1,
CORNER_TOPRIGHT = 2,
CORNER_BOTTOMLEFT = 4,
CORNER_BOTTOMRIGHT = 8,
CORNER_ALL = 15
};
static void
clearlooks_rounded_rectangle (cairo_t * cr,
double x,
double y,
double w,
double h,
double radius,
uint8_t corners)
{
if (radius < 0.01 || (corners == CORNER_NONE)) {
cairo_rectangle (cr, x, y, w, h);
return;
}
if (corners & CORNER_TOPLEFT)
cairo_move_to (cr, x + radius, y);
else
cairo_move_to (cr, x, y);
if (corners & CORNER_TOPRIGHT)
cairo_arc (cr, x + w - radius, y + radius, radius, M_PI * 1.5, M_PI * 2);
else
cairo_line_to (cr, x + w, y);
if (corners & CORNER_BOTTOMRIGHT)
cairo_arc (cr, x + w - radius, y + h - radius, radius, 0, M_PI * 0.5);
else
cairo_line_to (cr, x + w, y + h);
if (corners & CORNER_BOTTOMLEFT)
cairo_arc (cr, x + radius, y + h - radius, radius, M_PI * 0.5, M_PI);
else
cairo_line_to (cr, x, y + h);
if (corners & CORNER_TOPLEFT)
cairo_arc (cr, x + radius, y + radius, radius, M_PI, M_PI * 1.5);
else
cairo_line_to (cr, x, y);
}
static inline void
waveform_draw_cairo_rectangle (cairo_t *cr, color_t *clr, waveform_rect_t *rect)
{
cairo_set_source_rgba (cr, W_COLOR (clr));
cairo_rectangle (cr, rect->x, rect->y, rect->width, rect->height);
cairo_fill (cr);
}
static gboolean
ruler_redraw_cb (void *user_data)
{
waveform_t *w = user_data;
gtk_widget_queue_draw (w->ruler);
return FALSE;
}
static gboolean
waveform_draw_cb (void *user_data)
{
waveform_t *w = user_data;
DB_playItem_t *trk = deadbeef->streamer_get_playing_track ();
if (!trk) {
return;
}
GtkAllocation a;
gtk_widget_get_allocation (w->drawarea, &a);
const int width = a.width;
const int height = a.height;
const float dur = deadbeef->pl_get_item_duration (trk);
deadbeef->pl_item_unref (trk);
const float pos = (deadbeef->streamer_get_playpos () * width)/ dur;
// use 8 times (*8/1000 => /125 ) the amount of pixels per refresh to
// prevent skipped areas
float size = width/dur * CONFIG_REFRESH_INTERVAL/125;
const double doubleCursorWidth = CONFIG_CURSOR_WIDTH * 2;
size = (size < doubleCursorWidth ? doubleCursorWidth : size);
// redraw only from pos-size to pos+size
gtk_widget_queue_draw_area (w->drawarea, ceil (pos-size), 0, ceil (2*size), height);
return TRUE;
}
static gboolean
waveform_redraw_cb (void *user_data)
{
waveform_t *w = user_data;
if (w->resizetimer) {
g_source_remove (w->resizetimer);
w->resizetimer = 0;
}
waveform_draw (w, 0);
waveform_draw (w, 1);
gtk_widget_queue_draw (w->drawarea);
return FALSE;
}
static void
waveform_draw_text (cairo_t *cr, waveform_colors_t *color, const char *text, double x, double y)
{
cairo_set_source_rgba (cr, W_COLOR (&color->font));
cairo_set_font_size (cr, CONFIG_FONT_SIZE);
cairo_text_extents_t ex;
cairo_text_extents (cr, text, &ex);
const double text_x = x - ex.width/2;
const double text_y = y + ex.height/2;
cairo_move_to (cr, text_x, text_y);
cairo_show_text (cr, text);
}
static void
waveform_draw_seeking_cursor (waveform_t *w, cairo_t *cr, float duration, waveform_rect_t *rect)
{
float seek_pos = floor(CLAMP (w->seekbar_move_x, rect->x, rect->x + rect->width));
waveform_rect_t cursor_rect = {
.x = seek_pos - CONFIG_CURSOR_WIDTH,
.y = rect->y,
.width = CONFIG_CURSOR_WIDTH,
.height = rect->height,
};
waveform_draw_cairo_rectangle (cr, &w->colors.pb, &cursor_rect);
if (w->seekbar_move_x != w->seekbar_move_x_clicked || w->seekbar_move_x_clicked == -1) {
w->seekbar_move_x_clicked = -1;
const float cur_time = CLAMP (w->seekbar_move_x * duration / rect->width, 0, duration);
const int hr = cur_time / 3600;
const int mn = (cur_time - hr * 3600)/60;
const int sc = cur_time - hr * 3600 - mn * 60;
char s[100] = "";
snprintf (s, sizeof (s), "%02d:%02d:%02d", hr, mn, sc);
cairo_set_source_rgba (cr, W_COLOR (&w->colors.pb));
cairo_set_font_size (cr, CONFIG_FONT_SIZE);
cairo_select_font_face (cr,
"monospace",
CAIRO_FONT_SLANT_NORMAL,
CAIRO_FONT_WEIGHT_NORMAL);
cairo_text_extents_t text_size;
cairo_text_extents (cr, s, &text_size);
const double rec_padding = 5;
const double rec_padding_total = 2 * rec_padding;
const double rec_width = ceil (text_size.x_advance) + rec_padding_total;
const double rec_height = ceil (text_size.height) + rec_padding_total;
double rec_pos = ceil (seek_pos - rec_width);
double text_pos = rec_pos + rec_padding;
//uint8_t corners = CORNER_TOPLEFT | CORNER_BOTTOMLEFT;
uint8_t corners = CORNER_NONE;
if (seek_pos < rec_width) {
rec_pos = 0;
text_pos = rec_pos + rec_padding;
//corners = CORNER_TOPRIGHT | CORNER_BOTTOMRIGHT;
}
clearlooks_rounded_rectangle (cr, rec_pos, (rect->height - text_size.height - rec_padding_total)/2, rec_width, rec_height, 3, corners);
cairo_fill (cr);
cairo_move_to (cr, text_pos, (rect->height + text_size.height)/2);
cairo_set_source_rgba (cr, W_COLOR (&w->colors.font_pb));
cairo_show_text (cr, s);
}
}
static void
waveform_seekbar_draw (gpointer user_data, cairo_t *cr, waveform_rect_t *rect)
{
waveform_t *w = user_data;
if (playback_status == STOPPED) {
return;
}
DB_playItem_t *trk = deadbeef->streamer_get_playing_track ();
if (!trk) {
return;
}
const double left = rect->x;
const double top = rect->y;
const double width = rect->width;
const double height = rect->height;
const float dur = deadbeef->pl_get_item_duration (trk);
const float pos = (deadbeef->streamer_get_playpos () * width)/ dur + left;
int cursor_width = CONFIG_CURSOR_WIDTH;
if (!deadbeef->is_local_file (deadbeef->pl_find_meta_raw (trk, ":URI"))) {
if (w->drawtimer) {
g_source_remove (w->drawtimer);
w->drawtimer = 0;
}
waveform_draw_cairo_rectangle (cr, &w->colors.bg, rect);
waveform_draw_text (cr, &w->colors, "Streaming...", width/2,height/2);
}
else {
if (height != w->height || width != w->width) {
cairo_save (cr);
cairo_translate (cr, 0, 0);
cairo_scale (cr, width/w->width, height/w->height);
cairo_set_source_surface (cr, w->surf_shaded, 0, 0);
cairo_rectangle (cr, left, top, (pos - cursor_width) / (width/w->width), height / (height/w->height));
cairo_fill (cr);
cairo_restore (cr);
}
else {
cairo_set_source_surface (cr, w->surf_shaded, 0, 0);
cairo_rectangle (cr, left, top, pos - cursor_width, height);
cairo_fill (cr);
}
waveform_rect_t cursor_rect = {
.x = pos - cursor_width,
.y = top,
.width = cursor_width,
.height = height,
};
waveform_draw_cairo_rectangle (cr, &w->colors.pb, &cursor_rect);
if (w->seekbar_moving && dur >= 0) {
waveform_draw_seeking_cursor (w, cr, dur, rect);
}
}
deadbeef->pl_item_unref (trk);
}
static cairo_surface_t *
waveform_draw_surface_update (cairo_surface_t *surface, double width, double height)
{
if (!surface || cairo_image_surface_get_width (surface) != width || cairo_image_surface_get_height (surface) != height) {
if (surface) {
cairo_surface_destroy (surface);
surface = NULL;
}
surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
}
return surface;
}
static void
waveform_draw (void *user_data, int shaded)
{
waveform_t *w = user_data;
GtkAllocation a;
gtk_widget_get_allocation (w->drawarea, &a);
const int width = a.width;
const int height = a.height;
w->width = width;
w->height = height;
cairo_surface_t *surface;
if (!shaded) {
w->surf = waveform_draw_surface_update (w->surf, width, height);
surface = w->surf;
}
else {
w->surf_shaded = waveform_draw_surface_update (w->surf_shaded, width, height);
surface = w->surf_shaded;
}
cairo_surface_flush (surface);
cairo_t *cr = cairo_create (surface);
assert (cr != NULL);
waveform_data_render_t *w_render_ctx = waveform_render_data_build (w->wave, width, CONFIG_MIX_TO_MONO);
// Draw background
waveform_rect_t bg_rect = {
.x = 0,
.y = 0,
.width = width,
.height = height,
};
waveform_draw_cairo_rectangle (cr, &w->colors.bg, &bg_rect);
if (w_render_ctx) {
const int channels = w_render_ctx->num_channels;
const double channel_height = height/channels;
const double waveform_height = 0.9 * channel_height;
const double x = 0.0;
double y = (channel_height - waveform_height)/2;
waveform_colors_t *colors = &w->colors;
if (CONFIG_SHADE_WAVEFORM && shaded) {
colors = &w->colors_shaded;
}
for (int ch = 0; ch < channels; ch++, y += channel_height) {
waveform_sample_t *samples = w_render_ctx->samples[ch];
waveform_rect_t rect = {
.x = x,
.y = y,
.width = width,
.height = waveform_height,
};
switch (CONFIG_RENDER_METHOD) {
case SPIKES:
waveform_draw_wave_default (samples, colors, cr, &rect);
break;
case BARS:
waveform_draw_wave_bars (samples, colors, cr, &rect);
break;
default:
waveform_draw_wave_default (samples, colors, cr, &rect);
break;
}
}
if (!CONFIG_SHADE_WAVEFORM && shaded == 1) {
waveform_draw_cairo_rectangle (cr, &w->colors_shaded.pb, &bg_rect);
}
waveform_data_render_free (w_render_ctx);
}
cairo_destroy (cr);
return;
}
static void
waveform_scale (void *user_data, cairo_t *cr, waveform_rect_t *rect)
{
waveform_t *w = user_data;
if (rect->height != w->height || rect->width != w->width) {
cairo_save (cr);
cairo_translate (cr, rect->x, rect->y);
cairo_scale (cr, rect->width/w->width, rect->height/w->height);
cairo_set_source_surface (cr, w->surf, rect->x, rect->y);
cairo_paint (cr);
cairo_restore (cr);
}
else {
cairo_set_source_surface (cr, w->surf, rect->x, rect->y);
cairo_paint (cr);
}
}
static gboolean
waveform_generate_wavedata (gpointer user_data, DB_playItem_t *it, const char *uri, wavedata_t *wavedata)
{
waveform_t *w = user_data;
const double width = CONFIG_NUM_SAMPLES;
DB_fileinfo_t *fileinfo = NULL;
deadbeef->pl_lock ();
const char *dec_meta = deadbeef->pl_find_meta_raw (it, ":DECODER");
char decoder_id[100];
if (dec_meta) {
strncpy (decoder_id, dec_meta, sizeof (decoder_id));
}
DB_decoder_t *dec = NULL;
DB_decoder_t **decoders = deadbeef->plug_get_decoder_list ();
for (int i = 0; decoders[i]; i++) {
if (!strcmp (decoders[i]->plugin.id, decoder_id)) {
dec = decoders[i];
break;
}
}
deadbeef->pl_unlock ();
wavedata->data_len = 0;
wavedata->channels = 0;
if (dec && dec->open) {
fileinfo = dec->open (0);
if (fileinfo && dec->init (fileinfo, DB_PLAYITEM (it)) != 0) {
deadbeef->pl_lock ();
fprintf (stderr, "waveform: failed to decode file %s\n", deadbeef->pl_find_meta (it, ":URI"));
deadbeef->pl_unlock ();
goto out;
}
float *data;
float *buffer;
if (fileinfo) {
const float duration = deadbeef->pl_get_item_duration (it);
const int num_updates = MAX (1, floorf (duration)/30);
const int update_after_nsamples = width/num_updates;
if (duration <= 0) {
goto out;
}
const int bytes_per_sample = fileinfo->fmt.bps / 8;
const int samplesize = fileinfo->fmt.channels * bytes_per_sample;
const int nsamples_per_channel = floorf (duration * (float)fileinfo->fmt.samplerate);
const int samples_per_buf = ceilf ((float) nsamples_per_channel / (float) width);
const int max_samples_per_buf = 1 + samples_per_buf;
w->wave->channels = fileinfo->fmt.channels;
w->wave->data_len = w->wave->channels * 3 * CONFIG_NUM_SAMPLES;
deadbeef->mutex_lock (w->mutex);
memset (w->wave->data, 0, sizeof (short) * w->max_buffer_len);
deadbeef->mutex_unlock (w->mutex);
data = malloc (sizeof (float) * max_samples_per_buf * samplesize);
if (!data) {
trace ("waveform: out of memory.\n");
goto out;
}
memset (data, 0, sizeof (float) * max_samples_per_buf * samplesize);
buffer = malloc (sizeof (float) * max_samples_per_buf * samplesize);
if (!buffer) {
trace ("waveform: out of memory.\n");
goto out;
}
memset (buffer, 0, sizeof (float) * max_samples_per_buf * samplesize);
ddb_waveformat_t out_fmt = {
.bps = 32,
.channels = fileinfo->fmt.channels,
.samplerate = fileinfo->fmt.samplerate,
.channelmask = fileinfo->fmt.channelmask,
.is_float = 1,
.is_bigendian = 0
};
int update_counter = 0;
int eof = 0;
int counter = 0;
const long buffer_len = samples_per_buf * samplesize;
while (!eof) {
int sz = dec->read (fileinfo, (char *)buffer, buffer_len);
if (sz != buffer_len) {
eof = 1;
}
else if (sz == 0) {
break;
}
deadbeef->pcm_convert (&fileinfo->fmt, (char *)buffer, &out_fmt, (char *)data, sz);
int sample;
float min, max, rms;
for (int ch = 0; ch < fileinfo->fmt.channels; ch++) {
min = 1.0; max = -1.0; rms = 0.0;
for (sample = 0; sample < sz/samplesize; sample++) {
if (sample * fileinfo->fmt.channels > buffer_len) {
fprintf (stderr, "index error!\n");
break;
}
const float sample_val = data [sample * fileinfo->fmt.channels + ch];
max = MAX (max, sample_val);
min = MIN (min, sample_val);
rms += (sample_val * sample_val);
}
rms /= sample;
rms = sqrt (rms);
wavedata->data[counter] = (short)(max*1000);
wavedata->data[counter+1] = (short)(min*1000);
wavedata->data[counter+2] = (short)(rms*1000);
counter += 3;
}
if (update_counter == update_after_nsamples) {
DB_playItem_t *playing = deadbeef->streamer_get_playing_track ();
if (playing) {
if (playing == it) {
deadbeef->mutex_lock (w->mutex);
w->wave->channels = fileinfo->fmt.channels;
w->wave->data_len = w->wave->channels * VALUES_PER_SAMPLE * CONFIG_NUM_SAMPLES;
memset (w->wave->data, 0, sizeof (short) * w->max_buffer_len);
memcpy (w->wave->data, wavedata->data, counter * sizeof (short));
deadbeef->mutex_unlock (w->mutex);
g_idle_add (waveform_redraw_cb, w);
}
deadbeef->pl_item_unref (playing);
}
update_counter = 0;
}
update_counter++;
}
wavedata->fname = strdup (deadbeef->pl_find_meta_raw (it, ":URI"));
wavedata->data_len = counter;
wavedata->channels = fileinfo->fmt.channels;
if (data) {
free (data);
data = NULL;
}
if (buffer) {
free (buffer);
buffer = NULL;
}
}
}
out:
if (dec && fileinfo) {
dec->free (fileinfo);
fileinfo = NULL;
}
return TRUE;
}
static void
waveform_db_cache (gpointer user_data, DB_playItem_t *it, wavedata_t *wavedata)
{
waveform_t *w = user_data;
char *key = waveform_format_uri (it, wavedata->fname);
if (!key) {
return;
}
deadbeef->mutex_lock (w->mutex);
waveform_db_write (key, wavedata->data, wavedata->data_len * sizeof (short), wavedata->channels, 0);
deadbeef->mutex_unlock (w->mutex);
if (key) {
free (key);
key = NULL;
}
}
static int
waveform_valid_track (DB_playItem_t *it, const char *uri)
{
if (!deadbeef->is_local_file (uri)) {
return 0;
}
if (deadbeef->pl_get_item_duration (it)/60 >= CONFIG_MAX_FILE_LENGTH && CONFIG_MAX_FILE_LENGTH != -1) {
return 0;
}
deadbeef->pl_lock ();
const char *file_meta = deadbeef->pl_find_meta_raw (it, ":FILETYPE");
if (file_meta && strcmp (file_meta,"cdda") == 0) {
deadbeef->pl_unlock ();
return 0;
}
deadbeef->pl_unlock ();
return 1;
}
static int
waveform_delete (DB_playItem_t *it, const char *uri)
{
char *key = waveform_format_uri (it, uri);
if (!key) {
return 0;
}
int result = waveform_db_delete (key);
if (key) {
free (key);
key = NULL;
}
return result;
}
static int
waveform_is_cached (DB_playItem_t *it, const char *uri)
{
char *key = waveform_format_uri (it, uri);
if (!key) {
return 0;
}
int result = waveform_db_cached (key);
if (key) {
free (key);
key = NULL;
}
return result;
}
static void
waveform_get_from_cache (gpointer user_data, DB_playItem_t *it, const char *uri)
{
waveform_t *w = user_data;
char *key = waveform_format_uri (it, uri);
if (!key) {
return;
}
deadbeef->mutex_lock (w->mutex);
w->wave->data_len = waveform_db_read (key, w->wave->data, w->max_buffer_len, &w->wave->channels);
deadbeef->mutex_unlock (w->mutex);
if (key) {
free (key);
key = NULL;
}
}
static void
waveform_get_wavedata (gpointer user_data)
{
waveform_t *w = user_data;
DB_playItem_t *it = deadbeef->streamer_get_playing_track ();
if (!it) {
return;
}
char *uri = strdup (deadbeef->pl_find_meta_raw (it, ":URI"));
if (!uri) {
return;
}
if (!waveform_valid_track (it, uri)) {
return;
}
deadbeef->background_job_increment ();
if (CONFIG_CACHE_ENABLED && waveform_is_cached (it, uri)) {
waveform_get_from_cache (w, it, uri);
g_idle_add (waveform_redraw_cb, w);
}
else if (queue_add (uri)) {
wavedata_t *wavedata = malloc (sizeof (wavedata_t));
wavedata->data = malloc (sizeof (short) * w->max_buffer_len);
memset (wavedata->data, 0, sizeof (short) * w->max_buffer_len);
wavedata->fname = NULL;
waveform_generate_wavedata (w, it, uri, wavedata);
if (CONFIG_CACHE_ENABLED) {
waveform_db_cache (w, it, wavedata);
}
queue_pop (uri);
DB_playItem_t *playing = deadbeef->streamer_get_playing_track ();
if (playing && it && it == playing) {
deadbeef->mutex_lock (w->mutex);
memcpy (w->wave->data, wavedata->data, wavedata->data_len * sizeof (short));
w->wave->data_len = wavedata->data_len;
w->wave->channels = wavedata->channels;
deadbeef->mutex_unlock (w->mutex);
g_idle_add (waveform_redraw_cb, w);
}
if (playing) {
deadbeef->pl_item_unref (playing);
}
if (wavedata->data) {
free (wavedata->data);
wavedata->data = NULL;
}
if (wavedata->fname) {
free (wavedata->fname);
wavedata->fname = NULL;
}
if (wavedata) {
free (wavedata);
wavedata = NULL;
}
}
free (uri);
uri = NULL;
deadbeef->pl_item_unref (it);
deadbeef->background_job_decrement ();
}
static gboolean
waveform_set_refresh_interval (gpointer user_data, int interval)
{
waveform_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, waveform_draw_cb, w);
return TRUE;
}
static void
ruler_expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
{
waveform_t *w = user_data;
GtkAllocation a;
gtk_widget_get_allocation (w->ruler, &a);
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
cairo_t *cr = gdk_cairo_create (gtk_widget_get_window (w->ruler));
#pragma GCC diagnostic pop
if (!cr) {
return;
}
waveform_rect_t rect = {
.x = 0.0,
.y = 0.0,
.width = a.width,
.height = a.height,
};
float duration = 0.f;
DB_playItem_t *trk = deadbeef->streamer_get_playing_track ();
if (trk) {
duration = deadbeef->pl_get_item_duration (trk);
deadbeef->pl_item_unref (trk);
}
waveform_render_ruler (cr, &w->colors, duration, &rect);
cairo_destroy (cr);
}
static void
waveform_draw_generic_event (waveform_t *w, cairo_t *cr)
{
if (playback_status != PLAYING) {
if (w->drawtimer) {
g_source_remove (w->drawtimer);
w->drawtimer = 0;
}
}
GtkAllocation a;
gtk_widget_get_allocation (w->drawarea, &a);
waveform_rect_t rect = {
.x = 0,
.y = 0,
.width = a.width,
.height = a.height,
};
waveform_scale (w, cr, &rect);
waveform_seekbar_draw (w, cr, &rect);
}
#if !GTK_CHECK_VERSION(3,0,0)
static gboolean
waveform_expose_event (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
{
waveform_t *w = user_data;
cairo_t *cr = gdk_cairo_create (gtk_widget_get_window (w->drawarea));
waveform_draw_generic_event (w, cr);
cairo_destroy (cr);
return TRUE;
}
#else
static gboolean
waveform_draw_event (GtkWidget *widget, cairo_t *cr, gpointer user_data)
{
waveform_t *w = user_data;