mrmBot-Matrix/natives/circle.cc

#include <Magick++.h>
#include <napi.h>

#include <iostream>
#include <string>
#include <map>
#include <list>

using namespace std;
using namespace Magick;

char* Circle(string type, char* BufferData, size_t BufferLength, map<string, string> Arguments, size_t* DataSize) {
	
    Blob blob;

    list<Image> frames;
    list<Image> coalesced;
    list<Image> blurred;
    try {
      readImages(&frames, Blob(BufferData, BufferLength));
    } catch (Magick::WarningCoder &warning) {
      cerr << "Coder Warning: " << warning.what() << endl;
    } catch (Magick::Warning &warning) {
      cerr << "Warning: " << warning.what() << endl;
    }
    coalesceImages(&coalesced, frames.begin(), frames.end());

    for (Image &image : coalesced) {
      image.rotationalBlur(10);
      image.magick(type);
      blurred.push_back(image);
    }

    optimizeTransparency(blurred.begin(), blurred.end());

    if (type == "gif") {
      for (Image &image : blurred) {
        image.quantizeDitherMethod(FloydSteinbergDitherMethod);
        image.quantize();
      }
    }

    writeImages(blurred.begin(), blurred.end(), &blob);

    *DataSize = blob.length();

  	return (char*) blob.data();
}