68 lines
No EOL
2 KiB
C++
68 lines
No EOL
2 KiB
C++
#include <Magick++.h>
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#include <napi.h>
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#include <iostream>
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#include <list>
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using namespace std;
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using namespace Magick;
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Napi::Value Wall(const Napi::CallbackInfo &info) {
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Napi::Env env = info.Env();
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Napi::Object result = Napi::Object::New(env);
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try {
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Napi::Object obj = info[0].As<Napi::Object>();
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Napi::Buffer<char> data = obj.Get("data").As<Napi::Buffer<char>>();
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string type = obj.Get("type").As<Napi::String>().Utf8Value();
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Blob blob;
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list<Image> frames;
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list<Image> coalesced;
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list<Image> mid;
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try {
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readImages(&frames, Blob(data.Data(), data.Length()));
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} catch (Magick::WarningCoder &warning) {
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cerr << "Coder Warning: " << warning.what() << endl;
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} catch (Magick::Warning &warning) {
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cerr << "Warning: " << warning.what() << endl;
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}
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coalesceImages(&coalesced, frames.begin(), frames.end());
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for (Image &image : coalesced) {
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image.resize(Geometry("128x128"));
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image.virtualPixelMethod(Magick::TileVirtualPixelMethod);
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image.matteColor("none");
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image.backgroundColor("none");
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image.scale(Geometry("512x512"));
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double arguments[16] = {0, 0, 57, 42, 0, 128, 63, 130,
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128, 0, 140, 60, 128, 128, 140, 140};
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image.distort(Magick::PerspectiveDistortion, 16, arguments);
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image.scale(Geometry("800x800>"));
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image.magick(type);
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mid.push_back(image);
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}
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optimizeTransparency(mid.begin(), mid.end());
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if (type == "gif") {
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for (Image &image : mid) {
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image.quantizeDitherMethod(FloydSteinbergDitherMethod);
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image.quantize();
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}
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}
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writeImages(mid.begin(), mid.end(), &blob);
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result.Set("data", Napi::Buffer<char>::Copy(env, (char *)blob.data(),
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blob.length()));
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result.Set("type", type);
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} catch (std::exception const &err) {
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Napi::Error::New(env, err.what()).ThrowAsJavaScriptException();
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} catch (...) {
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Napi::Error::New(env, "Unknown error").ThrowAsJavaScriptException();
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}
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return result;
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} |