67 lines
No EOL
2.2 KiB
C++
67 lines
No EOL
2.2 KiB
C++
#include <Magick++.h>
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#include <napi.h>
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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 Trump(const Napi::CallbackInfo &info) {
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Napi::Env env = info.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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int delay =
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obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;
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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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Image watermark;
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readImages(&frames, Blob(data.Data(), data.Length()));
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watermark.read("./assets/images/trump.png");
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coalesceImages(&coalesced, frames.begin(), frames.end());
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for (Image &image : coalesced) {
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Image watermark_new = watermark;
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image.virtualPixelMethod(Magick::TransparentVirtualPixelMethod);
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image.backgroundColor("none");
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image.scale(Geometry("365x179!"));
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double arguments[16] = {0, 0, 207, 268, 365, 0, 548, 271,
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365, 179, 558, 450, 0, 179, 193, 450};
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image.distort(Magick::PerspectiveDistortion, 16, arguments, true);
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image.extent(Geometry("800x450"), Magick::CenterGravity);
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watermark_new.composite(image, Geometry("-25+134"),
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Magick::DstOverCompositeOp);
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watermark_new.magick(type);
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watermark_new.animationDelay(delay == 0 ? image.animationDelay() : delay);
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watermark_new.gifDisposeMethod(Magick::BackgroundDispose);
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mid.push_back(watermark_new);
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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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Napi::Object result = Napi::Object::New(env);
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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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return result;
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} catch (std::exception const &err) {
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throw Napi::Error::New(env, err.what());
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} catch (...) {
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throw Napi::Error::New(env, "Unknown error");
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}
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} |