一、概述
使用步骤:
1.在ndk入口cpp中加入一个宏。ps:最好加最上面
#include <jni.h> #include <string> #define STB_IMAGE_IMPLEMENTATION
2.在使用的时候导入头文件
//导入stb_image头文件 #include "stb_image.h"
二、代码示例
stbi_load方法,传入图像的路径,可以拿到图像的宽、高和通道数(channel)
void loadDataFromFile(const char *fileName) { int type = 0; int width = 0; int height = 0; //stbi_set_flip_vertically_on_load(true);//如果图像有镜像可以用开启这个翻转 unsigned char *picData = stbi_load((char const *) fileName, &width, &height, &type, STBI_rgb_alpha); int imgSize = width * height * 4; if (imgSize > 0 && picData != nullptr) { mBitmapPixels = malloc(imgSize); memcpy(mBitmapPixels, picData, imgSize); mBitmapWidth = width; mBitmapHeight = height; mChannel = type; } stbi_image_free(picData); }
标签:stbi,imgSize,stb,int,image,ndk,height,width From: https://www.cnblogs.com/tony-yang-flutter/p/18398965