cocos2dx3.X uiimage 转 texture2d 或者 image 失败

   今天试了网络上各种流行的转法，最终结果都是失败告终。

在void* data类型转到unsighe char* data过程中报错，直接报空指针。

类似失败代码1：

//    uiimage转 texture2d等的都会出现错误 错误原因 未知
    cocos2d::Texture2D*texture = new cocos2d::Texture2D();
   
    CGImageRef imageRef = [(UIImage*)pImageCGImage];
    NSUInteger width = CGImageGetWidth(imageRef);
    NSUInteger height = CGImageGetHeight(imageRef);
    CGColorSpaceRefcolorSpace = CGColorSpaceCreateDeviceRGB();
    unsigned char* rawData = (unsignedchar*)calloc(height * width *4,sizeof(unsignedchar));
    NSUInteger bytesPerPixel = 4;
    NSUInteger bytesPerRow = bytesPerPixel * width;
    NSUInteger bitsPerComponent = 8;
    CGContextRef context = CGBitmapContextCreate(rawData, width, height, bitsPerComponent, bytesPerRow, colorSpace,kCGImageAlphaPremultipliedLast| kCGBitmapByteOrder32Big);
    CGColorSpaceRelease(colorSpace);
    CGContextDrawImage(context,CGRectMake(0,0, width, height), imageRef);
    CGContextRelease(context);
   
    if (texture->initWithData(rawData, height * width *4,cocos2d::Texture2D::PixelFormat::RGBA8888, (int)width, (int)height,cocos2d::Size(width, height)))
    {
        if (ROLE_MANAGER->saveImageForFileName(texture)) {
            CCLOG(" image success to save !~");
            texture->autorelease();
            flag = true;
        }
        else{
            CCLOG(" image fail to save !~");
           
        }
    }
    else{
        CCLOG("  uiimage transfrom is fail!~  init error. ");
       
    }
   
    if (!flag)

        delete texture;

类似代码2：

cocos2d::Image*image = new(std::nothrow)cocos2d::Image();
    cocos2d::Texture2D*texture = new cocos2d::Texture2D();
   
   
//    if (image->initWithRawData((unsigned char*)pData, pLength, pWidth, pHeight, 4)) {
//        if (ROLE_MANAGER->saveImageForFileName(image)) {
   
    if (texture->initWithData(pData, pLength,cocos2d::Texture2D::PixelFormat::RGBA8888, pWidth, pHeight, cocos2d::Size(pWidth, pHeight))) {
        if (ROLE_MANAGER->saveImageForFileName(texture)) {
            CCLOG(" image success to save !~");
            image->autorelease();
            flag = true;
        }
        else{
            CCLOG(" image fail to save !~");
           
        }
    }
    else{
        CCLOG("  uiimage transfrom is fail!~  init error. ");
       

    }