mrmBot-Matrix/natives/scott.cc

73 lines
No EOL
2.4 KiB
C++

#include <Magick++.h>
#include <napi.h>
#include <iostream>
#include <list>
using namespace std;
using namespace Magick;
Napi::Value Scott(const Napi::CallbackInfo &info) {
Napi::Env env = info.Env();
Napi::Object result = Napi::Object::New(env);
try {
Napi::Object obj = info[0].As<Napi::Object>();
Napi::Buffer<char> data = obj.Get("data").As<Napi::Buffer<char>>();
string type = obj.Get("type").As<Napi::String>().Utf8Value();
string basePath = obj.Get("basePath").As<Napi::String>().Utf8Value();
Blob blob;
list<Image> frames;
list<Image> coalesced;
list<Image> mid;
Image watermark;
try {
readImages(&frames, Blob(data.Data(), data.Length()));
} catch (Magick::WarningCoder &warning) {
cerr << "Coder Warning: " << warning.what() << endl;
} catch (Magick::Warning &warning) {
cerr << "Warning: " << warning.what() << endl;
}
watermark.read(basePath + "assets/images/scott.png");
coalesceImages(&coalesced, frames.begin(), frames.end());
for (Image &image : coalesced) {
Image watermark_new = watermark;
image.virtualPixelMethod(Magick::TransparentVirtualPixelMethod);
image.backgroundColor("none");
image.scale(Geometry("415x234!"));
double arguments[16] = {0, 0, 129, 187, 415, 0, 517, 182,
415, 234, 517, 465, 0, 234, 132, 418};
image.distort(Magick::PerspectiveDistortion, 16, arguments, true);
image.extent(Geometry("864x481"), Magick::CenterGravity);
watermark_new.composite(image, Geometry("-110+83"),
Magick::OverCompositeOp);
watermark_new.magick(type);
watermark_new.animationDelay(image.animationDelay());
mid.push_back(watermark_new);
}
optimizeTransparency(mid.begin(), mid.end());
if (type == "gif") {
for (Image &image : mid) {
image.quantizeDitherMethod(FloydSteinbergDitherMethod);
image.quantize();
}
}
writeImages(mid.begin(), mid.end(), &blob);
result.Set("data", Napi::Buffer<char>::Copy(env, (char *)blob.data(),
blob.length()));
result.Set("type", type);
} catch (std::exception const &err) {
Napi::Error::New(env, err.what()).ThrowAsJavaScriptException();
} catch (...) {
Napi::Error::New(env, "Unknown error").ThrowAsJavaScriptException();
}
return result;
}