git.sesse.net Git - movit/blob - diffusion_effect.cpp

   1 #include <math.h>
   2 #include <assert.h>
   3
   4 #include "diffusion_effect.h"
   5 #include "blur_effect.h"
   6 #include "effect_chain.h"
   7 #include "util.h"
   8
   9 DiffusionEffect::DiffusionEffect()
  10         : blur(new BlurEffect),
  11           overlay_matte(new OverlayMatteEffect)
  12 {
  13 }
  14
  15 void DiffusionEffect::rewrite_graph(EffectChain *graph, Node *self)
  16 {
  17         assert(self->incoming_links.size() == 1);
  18         Node *input = self->incoming_links[0];
  19
  20         Node *blur_node = graph->add_node(blur);
  21         Node *overlay_matte_node = graph->add_node(overlay_matte);
  22         graph->replace_receiver(self, overlay_matte_node);
  23         graph->connect_nodes(input, blur_node);
  24         graph->connect_nodes(blur_node, overlay_matte_node);
  25         graph->replace_sender(self, overlay_matte_node);
  26
  27         self->disabled = true;
  28 }
  29
  30 bool DiffusionEffect::set_float(const std::string &key, float value) {
  31         if (key == "blurred_mix_amount") {
  32                 return overlay_matte->set_float(key, value);
  33         }
  34         return blur->set_float(key, value);
  35 }
  36
  37 OverlayMatteEffect::OverlayMatteEffect()
  38         : blurred_mix_amount(0.3f)
  39 {
  40         register_float("blurred_mix_amount", &blurred_mix_amount);
  41 }
  42
  43 std::string OverlayMatteEffect::output_fragment_shader()
  44 {
  45         return read_file("overlay_matte_effect.frag");
  46 }