mrmBot-Matrix/natives/tile.cc
2021-02-25 15:31:10 -06:00

77 lines
No EOL
2.1 KiB
C++

#include <napi.h>
#include <list>
#include <Magick++.h>
using namespace std;
using namespace Magick;
class TileWorker : public Napi::AsyncWorker {
public:
TileWorker(Napi::Function& callback, string in_path, string type, int delay)
: Napi::AsyncWorker(callback), in_path(in_path), type(type), delay(delay) {}
~TileWorker() {}
void Execute() {
list <Image> frames;
list <Image> coalesced;
list <Image> mid;
readImages(&frames, in_path);
coalesceImages(&coalesced, frames.begin(), frames.end());
for (Image &image : coalesced) {
list <Image> duplicated;
Image appended;
list <Image> montage;
Image frame;
image.magick(type);
for (int i = 0; i < 5; ++i) {
duplicated.push_back(image);
}
appendImages(&appended, duplicated.begin(), duplicated.end());
appended.repage();
for (int i = 0; i < 5; ++i) {
montage.push_back(appended);
}
appendImages(&frame, montage.begin(), montage.end(), true);
frame.repage();
frame.scale(Geometry("800x800>"));
frame.animationDelay(delay == 0 ? image.animationDelay() : delay);
mid.push_back(frame);
}
optimizeTransparency(mid.begin(), mid.end());
if (type == "gif") {
for (Image &image : mid) {
image.quantizeDitherMethod(FloydSteinbergDitherMethod);
image.quantize();
}
}
writeImages(mid.begin(), mid.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 Tile(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.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;
TileWorker* flopWorker = new TileWorker(cb, path, type, delay);
flopWorker->Queue();
return env.Undefined();
}