56 lines
No EOL
1.8 KiB
C++
56 lines
No EOL
1.8 KiB
C++
#include <napi.h>
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#include <list>
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#include <Magick++.h>
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using namespace std;
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using namespace Magick;
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class FreezeWorker : public Napi::AsyncWorker {
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public:
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FreezeWorker(Napi::Function& callback, string in_path, bool loop, int frame, string type, int delay)
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: Napi::AsyncWorker(callback), in_path(in_path), loop(loop), frame(frame), type(type), delay(delay) {}
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~FreezeWorker() {}
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void Execute() {
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list <Image> frames;
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readImages(&frames, in_path);
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if (frame >= 0 && !loop) {
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size_t frameSize = frames.size();
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int framePos = clamp(frame, 0, (int)frameSize);
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frames.resize(framePos + 1);
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}
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for_each(frames.begin(), frames.end(), animationIterationsImage(loop ? 0 : 1));
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for_each(frames.begin(), frames.end(), magickImage(type));
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if (delay != 0) for_each(frames.begin(), frames.end(), animationDelayImage(delay));
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writeImages(frames.begin(), frames.end(), &blob);
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}
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void OnOK() {
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Callback().Call({Env().Undefined(), Napi::Buffer<char>::Copy(Env(), (char *)blob.data(), blob.length()), Napi::String::From(Env(), type)});
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}
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private:
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string in_path, type;
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int frame, delay;
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Blob blob;
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bool loop;
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};
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Napi::Value Freeze(const Napi::CallbackInfo &info)
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{
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Napi::Env env = info.Env();
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Napi::Object obj = info[0].As<Napi::Object>();
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Napi::Function cb = info[1].As<Napi::Function>();
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string path = obj.Get("path").As<Napi::String>().Utf8Value();
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bool loop = obj.Has("loop") ? obj.Get("loop").As<Napi::Boolean>().Value() : false;
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string type = obj.Get("type").As<Napi::String>().Utf8Value();
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int delay = obj.Has("delay") ? obj.Get("delay").As<Napi::Number>().Int32Value() : 0;
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int frame = obj.Has("frame") ? obj.Get("frame").As<Napi::Number>().Int32Value() : -1;
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FreezeWorker* freezeWorker = new FreezeWorker(cb, path, loop, frame, type, delay);
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freezeWorker->Queue();
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return env.Undefined();
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} |