Adobe AIRのBitmapDataをObjectiveCでUIImageにするANEなやり方

BitmapData2UIImage.m

FREObject bitmapData2UIImage(FREContext ctx, void* funcData, 
    uint32_t argc, FREObject argv[]) {

    FREObject data = argv[0];
    FREBitmapData2 bitmapData;

    FREAcquireBitmapData2(data, &bitmapData);

    int width = bitmapData.width;
    int height = bitmapData.height;
    CGDataProviderRef provider = CGDataProviderCreateWithData(
                NULL, bitmapData.bits32, (width * height * 4), NULL);

    int bitsPerComponent = 8;
    int bitsPerPixel = 32;
    int bytesPerRow = 4 * width;
    CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();
    CGBitmapInfo bitmapInfo;

    if (bitmapData.hasAlpha) {
        if (bitmapData.isPremultiplied) {
            bitmapInfo = 
                kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst;
        } else {
            bitmapInfo = 
                kCGBitmapByteOrder32Little | kCGImageAlphaFirst;
        }
    } else {
         bitmapInfo = 
             kCGBitmapByteOrder32Little | kCGImageAlphaNoneSkipFirst;
    }

    CGColorRenderingIntent renderingIntent = kCGRenderingIntentDefault;
    CGImageRef imageRef = CGImageCreate(width, height, 
        bitsPerComponent, bitsPerPixel, bytesPerRow, colorSpaceRef,
        bitmapInfo, provider, NULL, NO, renderingIntent);

    UIImage *image = [UIImage imageWithCGImage:imageRef];
    FREReleaseBitmapData(data);
    return NULL;
}