static void
color_rotate (GeglProperties *o,
gfloat *input,
gfloat *output)
{
gfloat h, s, v;
gboolean skip = FALSE;
rgb_to_hsv (input[0], input[1], input[2],
&h, &s, &v);
if (is_gray (s, o->threshold))
{
if (o->gray_mode == GEGL_COLOR_ROTATE_GRAY_TREAT_AS)
{
if (angle_inside_slice (o->hue, o->src_from, o->src_to,
o->src_clockwise) <= 1)
{
h = DEG_TO_RAD (o->hue) / TWO_PI;
s = o->saturation;
}
else
{
skip = TRUE;
}
}
else
{
skip = TRUE;
h = DEG_TO_RAD (o->hue) / TWO_PI;
s = o->saturation;
}
}
if (! skip)
{
h = linear (left_end (o->src_from, o->src_to, o->src_clockwise),
right_end (o->src_from, o->src_to, o->src_clockwise),
left_end (o->dest_from, o->dest_to, o->dest_clockwise),
right_end (o->dest_from, o->dest_to, o->dest_clockwise),
h * TWO_PI);
h = angle_mod_2PI (h) / TWO_PI;
}
hsv_to_rgb (h, s, v,
output, output + 1, output + 2);
}
const_iterator right_begin(info_type const& n)
{
const_iterator i=right_end(n);
const_iterator b=right_begin_full(n);
for (;;) {
--i;
if (*i == null)
return i+1;
if (i==b)
return b;
}
}
t_var valid(t_var var, char *tmp, int i)
{
var.n = 0;
var.dot = 0;
var.d = 0;
var.link = 0;
var.valid = 1;
while (tmp[i] != '\0')
{
if (tmp[i] == '#')
var = right_position(var, tmp, i);
else if (tmp[i] == '\n')
var = right_end(var, i);
else if (tmp[i] == '.')
var.dot++;
else
var.valid = 0;
i++;
}
if (var.dot + var.d + var.n != 21 || var.d != 4 || var.n != 5
|| var.link < 6)
var.valid = 0;
return (var);
}
void set_null(info_type& n)// we can use this for foreign word edges, to be nice
{
for (iterator i=left_begin(n),e=right_end(n);i!=e;++i)
*i = null;
}
