PhotoProcessing.java 文件源码

private static Bitmap getBitmapFromNative(Bitmap bitmap) {
    int width = nativeGetBitmapWidth();
    int height = nativeGetBitmapHeight();

    if (bitmap == null || width != bitmap.getWidth()
            || height != bitmap.getHeight() || !bitmap.isMutable()) { // in
        Config config = Config.ARGB_8888;
        if (bitmap != null) {
            config = bitmap.getConfig();
            bitmap.recycle();
        }
        bitmap = Bitmap.createBitmap(width, height, config);
    }

    int[] pixels = new int[width];
    for (int y = 0; y < height; y++) {
        nativeGetBitmapRow(y, pixels);
        bitmap.setPixels(pixels, 0, width, 0, y, width, 1);
    }

    return bitmap;
}