vImage Data

gistfile1.txt

    CGDataProviderRef topProvider = CGImageGetDataProvider(someCGImageRef);
    CFDataRef topBitmapData = CGDataProviderCopyData(topProvider);
    
    size_t width = CGImageGetWidth(someCGImageRef);
    size_t height = CGImageGetHeight(someCGImageRef);
    size_t bytesPerRow = CGImageGetBytesPerRow(someCGImageRef);
    
    vImage_Buffer topBuffer = {
        .data = (void *)CFDataGetBytePtr(topBitmapData),
        .width = width,
        .height = height,
        .rowBytes = bytesPerRow,
    };