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#include <assert.h>
#include <vector>
#include "blur_effect.h"
#include "diffusion_effect.h"
#include "effect_chain.h"
#include "util.h"
using namespace std;
namespace movit {
DiffusionEffect::DiffusionEffect()
: blur(new BlurEffect),
overlay_matte(new OverlayMatteEffect),
owns_overlay_matte(true)
{
}
DiffusionEffect::~DiffusionEffect()
{
if (owns_overlay_matte) {
delete overlay_matte;
}
}
void DiffusionEffect::rewrite_graph(EffectChain *graph, Node *self)
{
assert(self->incoming_links.size() == 1);
Node *input = self->incoming_links[0];
Node *blur_node = graph->add_node(blur);
Node *overlay_matte_node = graph->add_node(overlay_matte);
owns_overlay_matte = false;
graph->replace_receiver(self, overlay_matte_node);
graph->connect_nodes(input, blur_node);
graph->connect_nodes(blur_node, overlay_matte_node);
graph->replace_sender(self, overlay_matte_node);
self->disabled = true;
}
bool DiffusionEffect::set_float(const string &key, float value) {
if (key == "blurred_mix_amount") {
return overlay_matte->set_float(key, value);
}
return blur->set_float(key, value);
}
OverlayMatteEffect::OverlayMatteEffect()
: blurred_mix_amount(0.3f)
{
register_float("blurred_mix_amount", &blurred_mix_amount);
}
string OverlayMatteEffect::output_fragment_shader()
{
return read_file("overlay_matte_effect.frag");
}
} // namespace movit
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