7c289253624b49a53ccf9f123ae87407238d71a8
[movit] / unsharp_mask_effect.cpp
1 #include <assert.h>
2 #include <vector>
3
4 #include "blur_effect.h"
5 #include "effect_chain.h"
6 #include "mix_effect.h"
7 #include "unsharp_mask_effect.h"
8 #include "util.h"
9
10 UnsharpMaskEffect::UnsharpMaskEffect()
11         : blur(new BlurEffect),
12           mix(new MixEffect)
13 {
14         CHECK(mix->set_float("strength_first", 1.0f));
15         CHECK(mix->set_float("strength_second", -0.3f));
16 }
17
18 void UnsharpMaskEffect::rewrite_graph(EffectChain *graph, Node *self)
19 {
20         assert(self->incoming_links.size() == 1);
21         Node *input = self->incoming_links[0];
22
23         Node *blur_node = graph->add_node(blur);
24         Node *mix_node = graph->add_node(mix);
25         graph->replace_receiver(self, mix_node);
26         graph->connect_nodes(input, blur_node);
27         graph->connect_nodes(blur_node, mix_node);
28         graph->replace_sender(self, mix_node);
29
30         self->disabled = true;
31 }
32
33 bool UnsharpMaskEffect::set_float(const std::string &key, float value) {
34         if (key == "amount") {
35                 bool ok = mix->set_float("strength_first", 1.0f + value);
36                 return ok && mix->set_float("strength_second", -value);
37         }
38         return blur->set_float(key, value);
39 }