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/*
* Copyright (C) 2002,2003 Pascal Haakmat.
*/
#include <gtk/gtk.h>
#include <glade/glade.h>
#include "../modutils.h"
module modinfo;
typedef struct {
module_id id;
shell *shl;
AFframecount duration;
int times;
double decay;
GtkSpinButton *duration_control;
GtkSpinButton *times_control;
GtkRange *decay_control;
GtkWidget *dialog;
} delay_params;
#ifdef HAVE_GNOME2
#define DELAY_GLADE_FILE "delay-2.glade"
#else
#define DELAY_GLADE_FILE "delay.glade"
#endif
void
delay(shell *shl,
int track,
AFframecount start_offset,
AFframecount end_offset,
int duration,
int times,
double decay) {
int32_t *delay_buffer = mem_calloc(1, duration * 2 * sizeof(int32_t));
int i, j = 0, loops = 1;
double duration_adjust, decay_adjust;
ITERATOR_INIT(start_offset, end_offset - start_offset);
if(!delay_buffer) {
FAIL("not enough memory for delay buffer (%d bytes)\n",
duration * 2 * sizeof(int32_t));
ITERATOR_EXIT();
return;
}
ITERATOR(shl, shl->sr->tracks[track],
for(i = 0; i < iter_read; i++) {
decay_adjust =
marker_list_slope_value(shl->sr->markers[track],
iter_frame_offset + i,
MARKER_SLOPE_AUX);
int32_frame_bits[i] =
int32_frame_bits[i] + delay_buffer[j] *
(decay + (decay * decay_adjust));
delay_buffer[j] = int32_frame_bits[i];
j++;
duration_adjust =
marker_list_slope_value(shl->sr->markers[track],
iter_frame_offset + i,
MARKER_SLOPE);
if(j >= duration + (duration * duration_adjust)) {
loops++;
if(loops > times)
ITERATOR_ESCAPE();
j = 0;
}
}
track_int32_frames_replace(shl->sr->tracks[track],
int32_frame_bits,
iter_frame_offset,
iter_read));
free(delay_buffer);
ITERATOR_EXIT();
return;
}
module *
module_new() {
MODULE_INIT(&modinfo,
"Delay",
"Pascal Haakmat",
"Copyright (C) 2002,2003");
return &modinfo;
}
void
on_apply_clicked(GtkWidget *w,
gpointer user_data) {
struct _module_state *module_state =
g_object_get_data(G_OBJECT(gtk_widget_get_toplevel(w)),
"user_data");
delay_params *p = (delay_params *)module_state->data;
p->duration = gtk_spin_button_get_value(p->duration_control) *
p->shl->grid.gap;
p->times = gtk_spin_button_get_value_as_int(p->times_control);
p->decay = gtk_range_get_adjustment(p->decay_control)->value / 100;
action_do(ACTION_MODULE_EXECUTE_NEW(WITH_UNDO,
p->shl,
p->id));
}
void
on_ok_clicked(GtkWidget *w,
gpointer user_data) {
struct _module_state *module_state =
g_object_get_data(G_OBJECT(gtk_widget_get_toplevel(w)),
"user_data");
delay_params *p = (delay_params *)module_state->data;
on_apply_clicked(w, NULL);
gtk_object_destroy(GTK_OBJECT(p->dialog));
}
void
on_close_clicked(GtkWidget *w,
gpointer user_data) {
struct _module_state *module_state =
g_object_get_data(G_OBJECT(gtk_widget_get_toplevel(w)),
"user_data");
delay_params *p = (delay_params *)module_state->data;
gtk_object_destroy(GTK_OBJECT(p->dialog));
}
void
on_dialog_destroy(GtkWidget *w,
gpointer user_data) {
struct _module_state *module_state =
g_object_get_data(G_OBJECT(gtk_widget_get_toplevel(w)),
"user_data");
module_state->is_open = 0;
free(module_state->data);
}
void
module_open(module_id id,
shell *shl,
int undo) {
GladeXML *xml;
GtkWidget *w;
char path[4096];
delay_params *p = mem_calloc(1, sizeof(delay_params));
if(!p) {
gui_alert("Not enough memory.");
return;
}
snprintf(path, 4096, "%s/%s", dirname(modules[id].fname), DELAY_GLADE_FILE);
xml = glade_xml_new(path, "dialog", NULL);
if(!xml) {
gui_alert("Delay: could not load interface %s.", path);
free(p);
return;
}
shl->module_state[id].is_open = 1;
shl->module_state[id].data = p;
p->id = id;
p->shl = shl;
p->duration_control = GTK_SPIN_BUTTON(glade_xml_get_widget(xml, "duration"));
p->times_control = GTK_SPIN_BUTTON(glade_xml_get_widget(xml, "times"));
p->decay_control = GTK_RANGE(glade_xml_get_widget(xml, "decay"));
p->dialog = GTK_WIDGET(glade_xml_get_widget(xml, "dialog"));
g_signal_connect(GTK_OBJECT(p->dialog), "destroy",
G_CALLBACK(on_dialog_destroy), shl);
w = GTK_WIDGET(glade_xml_get_widget(xml, "ok"));
g_signal_connect(GTK_OBJECT(w), "clicked",
G_CALLBACK(on_ok_clicked), shl);
w = GTK_WIDGET(glade_xml_get_widget(xml, "close"));
g_signal_connect(GTK_OBJECT(w), "clicked",
G_CALLBACK(on_close_clicked), shl);
w = GTK_WIDGET(glade_xml_get_widget(xml, "apply"));
g_signal_connect(GTK_OBJECT(w), "clicked",
G_CALLBACK(on_apply_clicked), shl);
g_object_set_data(G_OBJECT(p->dialog), "user_data",
GINT_TO_POINTER(&shl->module_state[id]));
g_object_unref(G_OBJECT(xml));
}
void
module_close(mod_state *module_state) {
gtk_object_destroy(GTK_OBJECT(((delay_params *)module_state->data)->dialog));
}
action_group *
module_execute(shell *shl,
int undo) {
AFframecount start = shl->select_start,
end = shl->select_end;
int map = shl->select_channel_map;
int t, id = shl->active_module_id, duration, times;
double decay;
delay_params *p = NULL;
action_group *undo_ag = NULL;
if(!shl->module_state[id].is_open) {
gui_alert("Delay does not have defaults.");
return NULL;
}
p = shl->module_state[id].data;
DEBUG("delay: duration: %ld, times: %d, decay: %f\n",
p->duration, p->times, p->decay);
duration = p->duration;
times = p->times;
decay = p->decay;
rwlock_rlock(&shl->sr->rwl);
if(undo)
undo_ag = action_group_undo_create(shl,
map,
start,
end - start,
start,
end - start);
for(t = 0; t < snd_track_count(shl->sr); t++)
if((1 << t) & map && t < shl->sr->channels)
delay(shl,
t,
start,
end,
duration,
times,
decay);
rwlock_runlock(&shl->sr->rwl);
return undo_ag;
}
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