GCanvas/node/util/NodeBindingUtil.h

35 lines
1.3 KiB
C++

/**
* Created by G-Canvas Open Source Team.
* Copyright (c) 2017, Alibaba, Inc. All rights reserved.
*
* This source code is licensed under the Apache Licence 2.0.
* For the full copyright and license information, please view
* the LICENSE file in the root directory of this source tree.
*/
#ifndef NODE_BINDING_UTIL_H
#define NODE_BINDING_UTIL_H
#include <napi.h>
#define TIMEOUT_VALUE 5L
namespace NodeBinding
{
struct ImageContent
{
char *memory;
unsigned int size;
};
enum PIC_FORMAT
{
PNG_FORAMT,
JPEG_FORMAT,
UNKOWN_PIC_FORMAT,
};
PIC_FORMAT getPicFormatFromContent(char *content, int len);
void decodeFromJEPGImage(std::vector<unsigned char> &pixels, unsigned int &width, unsigned int &height, const unsigned char *content, int len);
void decodeFromPNGImage(std::vector<unsigned char> &pixels, unsigned int &width, unsigned int &height, const unsigned char *content, int len);
int readLocalImage(const std::string &path, ImageContent *content);
bool checkArgs(const Napi::CallbackInfo &info, int exectedN);
unsigned int downloadImage(const std::string &src, ImageContent *content);
void throwError(const Napi::CallbackInfo &info, const std::string &exception);
void throwError(const Napi::Env &env, const std::string &exception);
} // namespace NodeBinding
#endif