mrmBot-Matrix/natives/magik.cc
2021-02-25 15:09:53 -06:00

66 lines
No EOL
1.8 KiB
C++

#include <napi.h>
#include <list>
#include <Magick++.h>
using namespace std;
using namespace Magick;
class MagikWorker : public Napi::AsyncWorker {
public:
MagikWorker(Napi::Function& callback, string in_path, string type, int delay)
: Napi::AsyncWorker(callback), in_path(in_path), type(type), delay(delay) {}
~MagikWorker() {}
void Execute() {
list <Image> frames;
list <Image> coalesced;
list <Image> blurred;
readImages(&frames, in_path);
coalesceImages(&coalesced, frames.begin(), frames.end());
for (Image &image : coalesced) {
image.scale(Geometry("350x350"));
image.liquidRescale(Geometry("175x175"));
image.liquidRescale(Geometry("350x350"));
image.magick(type);
blurred.push_back(image);
}
optimizeTransparency(blurred.begin(), blurred.end());
if (type == "gif") {
for (Image &image : blurred) {
image.quantizeDitherMethod(FloydSteinbergDitherMethod);
image.quantize();
if (delay != 0) image.animationDelay(delay);
}
}
writeImages(blurred.begin(), blurred.end(), &blob);
}
void OnOK() {
Callback().Call({Env().Undefined(), Napi::Buffer<char>::Copy(Env(), (char *)blob.data(), blob.length())});
}
private:
string in_path, type;
int delay;
Blob blob;
};
Napi::Value Magik(const Napi::CallbackInfo &info)
{
Napi::Env env = info.Env();
Napi::Object obj = info[0].As<Napi::Object>();
Napi::Function cb = info[1].As<Napi::Function>();
string path = obj.Get("path").As<Napi::String>().Utf8Value();
string type = obj.Get("type").As<Napi::String>().Utf8Value();
int delay = obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;
MagikWorker* explodeWorker = new MagikWorker(cb, path, type, delay);
explodeWorker->Queue();
return env.Undefined();
}