51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
#include <napi.h>
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#include <ZXing/ReadBarcode.h>
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#include <ZXing/TextUtfEncoding.h>
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#define STB_IMAGE_IMPLEMENTATION
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#include <stb/stb_image.h>
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using namespace std;
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using namespace ZXing;
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class QrReadWorker : public Napi::AsyncWorker {
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public:
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QrReadWorker(Napi::Function& callback, string in_path)
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: Napi::AsyncWorker(callback), in_path(in_path) {}
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~QrReadWorker() {}
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void Execute() {
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int width, height, channels;
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unique_ptr<stbi_uc, void(*)(void*)> buffer(stbi_load(in_path.c_str(), &width, &height, &channels, 4), stbi_image_free);
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auto result = ReadBarcode(width, height, buffer.get(), width * 4, 4, 0, 1, 2, { BarcodeFormat::QR_CODE });
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if (result.isValid()) {
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final = TextUtfEncoding::ToUtf8(result.text());
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missing = false;
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} else {
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final = "";
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}
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}
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void OnOK() {
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Napi::Object object = Napi::Object::New(Env());
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object.Set("qrText", final);
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object.Set("missing", missing);
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Callback().Call({Env().Undefined(), object});
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}
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private:
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string in_path, final;
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bool missing = true;
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};
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Napi::Value QrRead(const Napi::CallbackInfo &info)
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{
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Napi::Env env = info.Env();
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string in_path = info[0].As<Napi::String>().Utf8Value();
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Napi::Function cb = info[1].As<Napi::Function>();
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QrReadWorker* qrReadWorker = new QrReadWorker(cb, in_path);
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qrReadWorker->Queue();
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return env.Undefined();
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} |