experimental SVG-based video rendering engine made for music videos. React to MIDI or arbitrary signals from your DAW through "probe" VSTs
gwen.works
1use measure_time::debug_time;
2
3use crate::{ColorMapping, Filter, FilterType};
4
5use super::{CSSRenderable, renderable::SVGRenderable, svg};
6
7impl SVGRenderable for Filter {
8 fn render_to_svg(
9 &self,
10 _colormap: crate::ColorMapping,
11 _cell_size: usize,
12 _object_sizes: crate::graphics::objects::ObjectSizes,
13 _id: &str,
14 ) -> anyhow::Result<svg::Node> {
15 {
16 debug_time!("render_to_svg/filter");
17 Ok(match self.kind {
18 FilterType::Glow => {
19 // format!(
20 // r#"
21 // <filter id="glow">
22 // <feGaussianBlur stdDeviation="{}" result="coloredBlur"/>
23 // <feMerge>
24 // <feMergeNode in="coloredBlur"/>
25 // <feMergeNode in="SourceGraphic"/>
26 // </feMerge>
27 // </filter>
28 // "#,
29 // 2.5
30 // ) // TODO parameterize stdDeviation
31 svg::tag("filter").wrapping(vec![
32 // TODO parameterize stdDeviation
33 svg::tag("feGaussianBlur")
34 .attr("stdDeviation", self.parameter)
35 .attr("result", "coloredBlur"),
36 svg::tag("feMerge").wrapping(vec![
37 svg::tag("feMergeNode").attr("in", "coloredBlur"),
38 svg::tag("feMergeNode").attr("in", "SourceGraphic"),
39 ]),
40 ])
41 }
42 FilterType::NaturalShadow => {
43 /*
44 <filter id="natural-shadow-filter" x="0" y="0" width="2" height="2">
45 <feOffset in="SourceGraphic" dx="3" dy="3" />
46 <feGaussianBlur stdDeviation="12" result="blur" />
47 <feMerge>
48 <feMergeNode in="blur" />
49 <feMergeNode in="SourceGraphic" />
50 </feMerge>
51 </filter>
52 */
53 svg::tag("filter").wrapping(vec![
54 svg::tag("feOffset")
55 .attr("in", "SourceGraphic")
56 .attr("dx", self.parameter)
57 .attr("dy", self.parameter),
58 svg::tag("feGaussianBlur")
59 .attr("stdDeviation", self.parameter * 4.0)
60 .attr("result", "blur"),
61 svg::tag("feMerge").wrapping(vec![
62 svg::tag("feMergeNode").attr("in", "blur"),
63 svg::tag("feMergeNode").attr("in", "SourceGraphic"),
64 ]),
65 ])
66 }
67 FilterType::Saturation => {
68 /*
69 <filter id="saturation">
70 <feColorMatrix type="saturate" values="0.5"/>
71 </filter>
72 */
73 svg::tag("filter").wrapping(vec![
74 svg::tag("feColorMatrix")
75 .attr("type", "saturate")
76 .attr("values", self.parameter),
77 ])
78 }
79 }
80 .attr("id", self.id())
81 .attr("filterUnit", "userSpaceOnUse")
82 .into())
83 }
84 }
85}
86
87impl CSSRenderable for Filter {
88 fn render_to_css_filled(&self, _colormap: &ColorMapping) -> String {
89 format!("filter: url(#{}); overflow: visible;", self.id())
90 }
91
92 fn render_to_css_stroked(&self, colormap: &ColorMapping) -> String {
93 self.render_to_css_filled(colormap)
94 }
95}