#include <napi.h> #include <list> #include <Magick++.h> using namespace std; using namespace Magick; class WallWorker : public Napi::AsyncWorker { public: WallWorker(Napi::Function& callback, string in_path, string type, int delay) : Napi::AsyncWorker(callback), in_path(in_path), type(type), delay(delay) {} ~WallWorker() {} void Execute() { list <Image> frames; list <Image> coalesced; list <Image> mid; list <Image> result; readImages(&frames, in_path); coalesceImages(&coalesced, frames.begin(), frames.end()); for (Image &image : coalesced) { image.resize(Geometry("128x128")); image.virtualPixelMethod(Magick::TileVirtualPixelMethod); image.matteColor("none"); image.backgroundColor("none"); image.scale(Geometry("512x512")); double arguments[16] = {0, 0, 57, 42, 0, 128, 63, 130, 128, 0, 140, 60, 128, 128, 140, 140}; image.distort(Magick::PerspectiveDistortion, 16, arguments); image.scale(Geometry("800x800>")); image.magick(type); mid.push_back(image); } optimizeImageLayers(&result, mid.begin(), mid.end()); if (delay != 0) for_each(result.begin(), result.end(), animationDelayImage(delay)); writeImages(result.begin(), result.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 Wall(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.Get("delay").As<Napi::Number>().Int32Value(); WallWorker* flopWorker = new WallWorker(cb, path, type, delay); flopWorker->Queue(); return env.Undefined(); }