static void
render_color_dots (GstAudioVisualizer * base, guint32 * vdata,
gint16 * adata, guint num_samples)
{
GstSpaceScope *scope = (GstSpaceScope *) base;
guint i, s;
gint x, y, ox, oy;
gfloat dx, dy;
gint w = GST_VIDEO_INFO_WIDTH (&base->vinfo), w1 = w - 2;
gint h = GST_VIDEO_INFO_HEIGHT (&base->vinfo), h1 = h - 2;
gdouble il, ir;
gdouble f1l_l = scope->f1l_l, f1l_m = scope->f1l_m, f1l_h = scope->f1l_h;
gdouble f1r_l = scope->f1r_l, f1r_m = scope->f1r_m, f1r_h = scope->f1r_h;
gdouble f2l_l = scope->f2l_l, f2l_m = scope->f2l_m, f2l_h = scope->f2l_h;
gdouble f2r_l = scope->f2r_l, f2r_m = scope->f2r_m, f2r_h = scope->f2r_h;
/* draw dots 1st channel x, 2nd channel y */
ox = w / 2;
oy = h / 2;
dx = w / 65536.0;
dy = h / 65536.0;
s = 0;
for (i = 0; i < num_samples; i++) {
il = (gdouble) adata[s++];
ir = (gdouble) adata[s++];
filter (il, ir);
x = (gint) (ox + f1l_l * dx);
y = (gint) (oy + f1r_l * dy);
x = CLAMP (x, 0, w1);
y = CLAMP (y, 0, h1);
draw_dot_c (vdata, x, y, w, 0x00FF0000);
x = (gint) (ox + f2l_l * dx);
y = (gint) (oy + f2r_l * dy);
x = CLAMP (x, 0, w1);
y = CLAMP (y, 0, h1);
draw_dot_c (vdata, x, y, w, 0x0000FF00);
x = (gint) (ox + (f2l_m + f2l_h) * dx);
y = (gint) (oy + (f2r_m + f2r_h) * dy);
x = CLAMP (x, 0, w1);
y = CLAMP (y, 0, h1);
draw_dot_c (vdata, x, y, w, 0x000000FF);
}
scope->f1l_l = f1l_l;
scope->f1l_m = f1l_m;
scope->f1l_h = f1l_h;
scope->f1r_l = f1r_l;
scope->f1r_m = f1r_m;
scope->f1r_h = f1r_h;
scope->f2l_l = f2l_l;
scope->f2l_m = f2l_m;
scope->f2l_h = f2l_h;
scope->f2r_l = f2r_l;
scope->f2r_m = f2r_m;
scope->f2r_h = f2r_h;
}
static void
render_color_dots (GstAudioVisualizer * base, guint32 * vdata,
gint16 * adata, guint num_samples)
{
GstWaveScope *scope = (GstWaveScope *) base;
gint channels = GST_AUDIO_INFO_CHANNELS (&base->ainfo);
guint i, c, s, x, y, oy;
gfloat dx, dy;
guint w = GST_VIDEO_INFO_WIDTH (&base->vinfo);
guint h = GST_VIDEO_INFO_HEIGHT (&base->vinfo), h1 = h - 2;
gdouble *flt = scope->flt;
/* draw dots */
dx = (gfloat) w / (gfloat) num_samples;
dy = h / 65536.0;
oy = h / 2;
for (c = 0; c < channels; c++) {
s = c;
for (i = 0; i < num_samples; i++) {
x = (guint) ((gfloat) i * dx);
filter ((gfloat) adata[s]);
y = (guint) (oy + flt[0] * dy);
y = MIN (y, h1);
draw_dot_c (vdata, x, y, w, 0x00FF0000);
y = (guint) (oy + flt[3] * dy);
y = MIN (y, h1);
draw_dot_c (vdata, x, y, w, 0x0000FF00);
y = (guint) (oy + (flt[4] + flt[5]) * dy);
y = MIN (y, h1);
draw_dot_c (vdata, x, y, w, 0x000000FF);
s += channels;
}
flt += 6;
}
}
