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75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
/**
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* Created by G-Canvas Open Source Team.
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* Copyright (c) 2017, Alibaba, Inc. All rights reserved.
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*
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* This source code is licensed under the Apache Licence 2.0.
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* For the full copyright and license information, please view
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* the LICENSE file in the root directory of this source tree.
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*/
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#ifndef IMAGE_H
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#define IMAGE_H
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#include <napi.h>
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#include <curl/curl.h>
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#include <vector>
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#include "NodeBindingUtil.h"
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#include "lodepng.h"
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namespace NodeBinding
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{
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//使用asyncWorker来进行node中的异步调用
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class ImageWorker : public Napi::AsyncWorker
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{
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public:
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ImageWorker(Napi::Env env, std::vector<unsigned char> &out, unsigned int &width, unsigned int &height) : Napi::AsyncWorker(env), _pixels(out),
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_height(height),
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_width(width)
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{
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}
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void Execute();
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void OnOK();
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void OnError(const Napi::Error &e);
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std::string url;
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void setOnErrorCallback(Napi::Function func);
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void setOnLoadCallback(Napi::Function func);
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private:
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Napi::FunctionReference onErrorCallback;
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Napi::FunctionReference onLoadCallback;
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std::vector<unsigned char> &_pixels;
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unsigned int &_width;
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unsigned int &_height;
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ImageContent content;
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};
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class Image : public Napi::ObjectWrap<Image>
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{
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public:
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Image(const Napi::CallbackInfo &info);
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static void Init(Napi::Env env, Napi::Object exports);
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int getWidth();
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int getHeight();
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int textureId=-1;
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std::vector<unsigned char> &getPixels();
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private:
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std::vector<unsigned char> pixels;
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static Napi::FunctionReference constructor;
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Napi::Function onLoadCallback;
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Napi::Function onErrorCallback;
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std::string src;
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ImageWorker *mWorker = nullptr;
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unsigned int width = 0;
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unsigned int height = 0;
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Napi::Value getSrc(const Napi::CallbackInfo &info);
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void setSrc(const Napi::CallbackInfo &info, const Napi::Value &value);
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Napi::Value getOnLoad(const Napi::CallbackInfo &info);
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void setOnLoad(const Napi::CallbackInfo &info, const Napi::Value &value);
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Napi::Value getOnError(const Napi::CallbackInfo &info);
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void setOnError(const Napi::CallbackInfo &info, const Napi::Value &value);
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Napi::Value getWidth(const Napi::CallbackInfo &info);
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Napi::Value getHeight(const Napi::CallbackInfo &info);
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};
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} // namespace NodeBinding
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#endif |