1 #include <assert.h>
2 #include <vector>
3
4 #include "blur_effect.h"
5 #include "effect_chain.h"
6 #include "glow_effect.h"
7 #include "mix_effect.h"
8 #include "util.h"
9
10 using namespace std;
11
12 namespace movit {
13
GlowEffect()14 GlowEffect::GlowEffect()
15 : blur(new BlurEffect),
16 cutoff(new HighlightCutoffEffect),
17 mix(new MixEffect)
18 {
19 CHECK(blur->set_float("radius", 20.0f));
20 CHECK(mix->set_float("strength_first", 1.0f));
21 CHECK(mix->set_float("strength_second", 1.0f));
22 CHECK(cutoff->set_float("cutoff", 0.2f));
23 }
24
rewrite_graph(EffectChain * graph,Node * self)25 void GlowEffect::rewrite_graph(EffectChain *graph, Node *self)
26 {
27 assert(self->incoming_links.size() == 1);
28 Node *input = self->incoming_links[0];
29
30 Node *blur_node = graph->add_node(blur);
31 Node *mix_node = graph->add_node(mix);
32 Node *cutoff_node = graph->add_node(cutoff);
33 graph->replace_receiver(self, mix_node);
34 graph->connect_nodes(input, cutoff_node);
35 graph->connect_nodes(cutoff_node, blur_node);
36 graph->connect_nodes(blur_node, mix_node);
37 graph->replace_sender(self, mix_node);
38
39 self->disabled = true;
40 }
41
set_float(const string & key,float value)42 bool GlowEffect::set_float(const string &key, float value) {
43 if (key == "blurred_mix_amount") {
44 return mix->set_float("strength_second", value);
45 }
46 if (key == "highlight_cutoff") {
47 return cutoff->set_float("cutoff", value);
48 }
49 return blur->set_float(key, value);
50 }
51
HighlightCutoffEffect()52 HighlightCutoffEffect::HighlightCutoffEffect()
53 : cutoff(0.0f)
54 {
55 register_float("cutoff", &cutoff);
56 }
57
output_fragment_shader()58 string HighlightCutoffEffect::output_fragment_shader()
59 {
60 return read_file("highlight_cutoff_effect.frag");
61 }
62
63 } // namespace movit
64