static void generateWavePeriod(void)
{
int waveType = 0;
double waveFreq;
int i;
struct iio_device *trigger = iio_context_find_device(ctx, "hrtimer-1");
unsigned long triggerFreq;
long long triggerFreqLL = 0;
iio_device_attr_read_longlong(trigger, "frequency", &triggerFreqLL);
triggerFreq = triggerFreqLL;
/* Set the maximum frequency that user can select to 10% of the input generator frequency. */
if (triggerFreq >= 10)
gtk_range_set_range(GTK_RANGE(scale_freq), 0.1, triggerFreq / 10);
wave_ampl = gtk_range_get_value(GTK_RANGE(scale_ampl));
wave_offset = gtk_range_get_value(GTK_RANGE(scale_offset));
waveFreq = gtk_range_get_value(GTK_RANGE(scale_freq));
buffer_size = (unsigned int)round(triggerFreq / waveFreq);
if (buffer_size < 2)
buffer_size = 2;
else if (buffer_size > 10000)
buffer_size = 10000;
current_sample = 0;
soft_buffer_ch0 = g_renew(uint8_t, soft_buffer_ch0, buffer_size);
gtk_range_set_value(GTK_RANGE(scale_freq), (double)triggerFreq / buffer_size);
gtk_widget_queue_draw(scale_freq);
if(gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(btn_sine)))
waveType = SINEWAVE;
else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(btn_square)))
waveType = SQUAREWAVE;
else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(btn_triangle)))
waveType = TRIANGLE;
else if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(btn_sawtooth)))
waveType = SAWTOOTH;
FillSoftBuffer(waveType, soft_buffer_ch0);
/* Also generate a preview of the output signal. */
float_soft_buff = g_renew(gfloat, float_soft_buff, 2 * buffer_size);
X = g_renew(gfloat, X, 2 * buffer_size);
for (i = 0; i < 2 * buffer_size; i++)
X[i] = i;
for (i = 0; i < 2 * buffer_size; i++)
float_soft_buff[i] = soft_buffer_ch0[i % buffer_size] * 3.3 / 256;
gtk_databox_graph_remove_all(GTK_DATABOX(databox));
databox_graph = gtk_databox_lines_new((2 * buffer_size), X, float_soft_buff,
&color_prev_graph, 2);
databox_graph_dots = gtk_databox_points_new((2 * buffer_size), X, float_soft_buff,
&color_prev_graph_dots, 5);
gtk_databox_graph_add(GTK_DATABOX(databox), databox_graph_dots);
gtk_databox_graph_add(GTK_DATABOX(databox), databox_graph);
gtk_databox_set_total_limits(GTK_DATABOX(databox), -0.2, (i - 1), 3.5, -0.2);
}
static void facq_baf_view_plot_finalize(GObject *self)
{
FacqBAFViewPlot *plot = FACQ_BAF_VIEW_PLOT(self);
facq_baf_view_plot_free_samples(plot->priv->samples,plot->priv->n_channels);
facq_baf_view_plot_free_samples(plot->priv->copy_samples,plot->priv->n_channels);
if(plot->priv->time)
g_free(plot->priv->time);
if(plot->priv->copy_time)
g_free(plot->priv->copy_time);
if(GTK_IS_WIDGET(plot->priv->databox)){
gtk_databox_graph_remove_all(GTK_DATABOX(plot->priv->databox));
gtk_widget_destroy(plot->priv->databox);
}
if(GTK_IS_WIDGET(plot->priv->table))
gtk_widget_destroy(plot->priv->table);
G_OBJECT_CLASS(facq_baf_view_plot_parent_class)->finalize (self);
}
