Java Code Examples for android.renderscript.ScriptIntrinsicBlur#setRadius()

@Override
protected Bitmap transform(BitmapPool pool, Bitmap toTransform, int outWidth, int outHeight) {
  Matrix scaleMatrix = new Matrix();
  scaleMatrix.setScale(bitmapScaleFactor, bitmapScaleFactor);

  Bitmap              blurredBitmap = Bitmap.createBitmap(toTransform, 0, 0, outWidth, outHeight, scaleMatrix, true);
  Allocation          input         = Allocation.createFromBitmap(rs, blurredBitmap, Allocation.MipmapControl.MIPMAP_FULL, Allocation.USAGE_SHARED);
  Allocation          output        = Allocation.createTyped(rs, input.getType());
  ScriptIntrinsicBlur script        = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));

  script.setInput(input);
  script.setRadius(blurRadius);
  script.forEach(output);
  output.copyTo(blurredBitmap);

  return blurredBitmap;
}
 

private static Bitmap blur_real(Context context, Bitmap image) {
    int width = Math.round(image.getWidth() * BITMAP_SCALE);
    int height = Math.round(image.getHeight() * BITMAP_SCALE);

    Bitmap inputBitmap = Bitmap.createScaledBitmap(image, width, height, false);
    Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);

    RenderScript rs = RenderScript.create(context);
    ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
    Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
    theIntrinsic.setRadius(BLUR_RADIUS);
    theIntrinsic.setInput(tmpIn);
    theIntrinsic.forEach(tmpOut);
    tmpOut.copyTo(outputBitmap);

    return outputBitmap;
}
 

@Override
public Bitmap transform(Bitmap bitmap) {
    // Create another bitmap that will hold the results of the filter.
    Bitmap blurredBitmap = Bitmap.createBitmap(bitmap);

    // Allocate memory for Renderscript to work with
    Allocation input = Allocation.createFromBitmap(rs, bitmap, Allocation.MipmapControl.MIPMAP_FULL, Allocation.USAGE_SHARED);
    Allocation output = Allocation.createTyped(rs, input.getType());

    // Load up an instance of the specific script that we want to use.
    ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    script.setInput(input);

    // Set the blur radius
    script.setRadius(20);

    // Start the ScriptIntrinisicBlur
    script.forEach(output);

    // Copy the output to the blurred bitmap
    output.copyTo(blurredBitmap);

    bitmap.recycle();

    return blurredBitmap;
}
 

@Override
public Bitmap transform(Bitmap bitmap) {
    // Create another bitmap that will hold the results of the filter.
    Bitmap blurredBitmap = Bitmap.createBitmap(bitmap);

    // Allocate memory for Renderscript to work with
    Allocation input = Allocation.createFromBitmap(rs, bitmap, Allocation.MipmapControl.MIPMAP_FULL, Allocation.USAGE_SHARED);
    Allocation output = Allocation.createTyped(rs, input.getType());

    // Load up an instance of the specific script that we want to use.
    ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    script.setInput(input);

    // Set the blur radius
    script.setRadius(20);

    // Start the ScriptIntrinisicBlur
    script.forEach(output);

    // Copy the output to the blurred bitmap
    output.copyTo(blurredBitmap);

    bitmap.recycle();

    return blurredBitmap;
}
 

@Override
public Bitmap transform(Bitmap bitmap) {
    // Create another bitmap that will hold the results of the filter.
    Bitmap blurredBitmap = Bitmap.createBitmap(bitmap);

    // Allocate memory for Renderscript to work with
    Allocation input = Allocation.createFromBitmap(rs, bitmap, Allocation.MipmapControl.MIPMAP_FULL, Allocation.USAGE_SHARED);
    Allocation output = Allocation.createTyped(rs, input.getType());

    // Load up an instance of the specific script that we want to use.
    ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    script.setInput(input);

    // Set the blur radius
    script.setRadius(20);

    // Start the ScriptIntrinisicBlur
    script.forEach(output);

    // Copy the output to the blurred bitmap
    output.copyTo(blurredBitmap);

    bitmap.recycle();

    return blurredBitmap;
}
 

public static Bitmap apply(Context context, Bitmap sentBitmap, int radius) {
    final Bitmap bitmap = sentBitmap.copy(sentBitmap.getConfig(), true);
    final RenderScript rs = RenderScript.create(context);
    final Allocation input = Allocation.createFromBitmap(rs, sentBitmap, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
    final Allocation output = Allocation.createTyped(rs, input.getType());
    final ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));

    script.setRadius(radius);
    script.setInput(input);
    script.forEach(output);
    output.copyTo(bitmap);

    sentBitmap.recycle();
    rs.destroy();
    input.destroy();
    output.destroy();
    script.destroy();

    return bitmap;
}
 

public Bitmap renderScriptBlur(Bitmap bitmap, int radius) {
    Bitmap outBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);

    RenderScript rs = RenderScript.create(mContext);

    ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    Allocation allIn = Allocation.createFromBitmap(rs, bitmap);
    Allocation allOut = Allocation.createFromBitmap(rs, outBitmap);
    blurScript.setRadius(radius);
    blurScript.setInput(allIn);
    blurScript.forEach(allOut);
    allOut.copyTo(outBitmap);
    rs.destroy();
    return outBitmap;
}
 

/**
 * renderScript模糊图片
 * <p>API大于17</p>
 *
 * @param src     源图片
 * @param radius  模糊度(0...25)
 * @return 模糊后的图片
 */
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public static Bitmap renderScriptBlur( Bitmap src, float radius) {
    if (isEmptyBitmap(src)) return null;
    RenderScript rs = null;
    try {
        rs = RenderScript.create(RxTool.getContext());
        rs.setMessageHandler(new RenderScript.RSMessageHandler());
        Allocation input = Allocation.createFromBitmap(rs, src, Allocation.MipmapControl.MIPMAP_NONE, Allocation
                .USAGE_SCRIPT);
        Allocation output = Allocation.createTyped(rs, input.getType());
        ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
        if (radius > 25) {
            radius = 25.0f;
        } else if (radius <= 0) {
            radius = 1.0f;
        }
        blurScript.setInput(input);
        blurScript.setRadius(radius);
        blurScript.forEach(output);
        output.copyTo(src);
    } finally {
        if (rs != null) {
            rs.destroy();
        }
    }
    return src;
}
 

private void generateShadow() {
    if (isJellyBeanAndAbove() && !isInEditMode()) {
        if (mShadowBlurRadius == 0f) return;

        if (mShadow == null) {
            mShadow = Bitmap.createBitmap(getWidth(), getHeight(), ALPHA_8);
        } else {
            mShadow.eraseColor(TRANSPARENT);
        }
        Canvas c = new Canvas(mShadow);
        c.drawPath(mPath, mShadowPaint);
        if (mShowBorder) {
            c.drawPath(mPath, mShadowPaint);
        }
        RenderScript rs = RenderScript.create(getContext());
        ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, Element.U8(rs));
        Allocation input = Allocation.createFromBitmap(rs, mShadow);
        Allocation output = Allocation.createTyped(rs, input.getType());
        blur.setRadius(mShadowBlurRadius);
        blur.setInput(input);
        blur.forEach(output);
        output.copyTo(mShadow);
        input.destroy();
        output.destroy();
        blur.destroy();
    }
}
 

@TargetApi(17)
public static Bitmap picBlur(Context context, Bitmap bitmap, Float radius) {
    Bitmap outPutBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);
    RenderScript rs = RenderScript.create(context);
    Allocation allIn = Allocation.createFromBitmap(rs, bitmap);
    Allocation allOut = Allocation.createFromBitmap(rs, outPutBitmap);
    ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    blur.setInput(allIn);
    blur.setRadius(TitleBar.SHAREBTN_RIGHT_MARGIN);
    blur.forEach(allOut);
    allIn.copyTo(outPutBitmap);
    rs.destroy();
    return outPutBitmap;
}
 

public Bitmap blurImage(Bitmap bm, int blur, int blurZoom) {
    if (blur > 0 && android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
        RenderScript rs = RenderScript.create(mRegistrar.activity());
        ScriptIntrinsicBlur _blur = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
        int w = bm.getWidth();
        int h = bm.getHeight();
        Bitmap _temp;
        if (blurZoom == 0) {
            _temp = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
        } else {
            int tw = w / blurZoom;
            int th = h / blurZoom;
            bm = Bitmap.createScaledBitmap(bm, tw, th, false);
            _temp = Bitmap.createBitmap(tw, th, Bitmap.Config.ARGB_8888);
        }
        Allocation _in = Allocation.createFromBitmap(rs, bm);
        Allocation _out = Allocation.createFromBitmap(rs, _temp);
        _blur.setRadius(Math.min(25.0f, (((float) blur) / 100.0f) * 25.0f)); // 0 ~ 25
        _blur.setInput(_in);
        _blur.forEach(_out);
        _out.copyTo(_temp);
        rs.destroy();
        if (blurZoom == 0)
            return Bitmap.createBitmap(_temp);
        else
            return Bitmap.createScaledBitmap(_temp, w, h, true);
    } else
        return bm;
}
 

/**
 *
 * @param rs RenderScript Context
 * @param image screenshot bitmap
 * @param Radius integer between 1 to 24
 * @param brightness -255..255 0 is default
 * @return blurred Bitmap
 */
private static Bitmap blur(RenderScript rs, Bitmap image, int Radius, float brightness, float factor) {
    Bitmap outputBitmap;
    if(Radius > 0 && Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
        outputBitmap = Bitmap.createBitmap(image.getWidth(),image.getHeight(), Bitmap.Config.ARGB_8888);
        ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
        Allocation tmpIn = Allocation.createFromBitmap(rs, image);
        Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
        theIntrinsic.setRadius(Radius/factor);
        theIntrinsic.setInput(tmpIn);
        theIntrinsic.forEach(tmpOut);
        tmpOut.copyTo(outputBitmap);
    } else {
        outputBitmap = image;
    }
    if(brightness!=0){
        ColorMatrix cm = new ColorMatrix(new float[]
                {
                        (float) 1, 0, 0, 0, brightness,
                        0, (float) 1, 0, 0, brightness,
                        0, 0, (float) 1, 0, brightness,
                        0, 0, 0, 1, 0
                });
        Canvas canvas = new Canvas(outputBitmap);
        Paint paint = new Paint();
        paint.setColorFilter(new ColorMatrixColorFilter(cm));
        canvas.drawBitmap(outputBitmap, 0, 0, paint);
    }
    return outputBitmap;
}
 

/**
 * Not-in-place intrinsic Gaussian blur filter using {@link ScriptIntrinsicBlur} and {@link
 * RenderScript}. This require an Android versions >= 4.2.
 *
 * @param dest The {@link Bitmap} where the blurred image is written to.
 * @param src The {@link Bitmap} containing the original image.
 * @param context The {@link Context} necessary to use {@link RenderScript}
 * @param radius The radius of the blur with a supported range 0 < radius <= {@link
 *     #BLUR_MAX_RADIUS}
 */
@RequiresApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public static void blurBitmap(
    final Bitmap dest, final Bitmap src, final Context context, final int radius) {
  Preconditions.checkNotNull(dest);
  Preconditions.checkNotNull(src);
  Preconditions.checkNotNull(context);
  Preconditions.checkArgument(radius > 0 && radius <= BLUR_MAX_RADIUS);
  RenderScript rs = null;
  try {
    rs = RenderScript.create(context);

    // Create an Intrinsic Blur Script using the Renderscript
    ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));

    // Create the input/output allocations with Renderscript and the src/dest bitmaps
    Allocation allIn = Allocation.createFromBitmap(rs, src);
    Allocation allOut = Allocation.createFromBitmap(rs, dest);

    // Set the radius of the blur
    blurScript.setRadius(radius);
    blurScript.setInput(allIn);
    blurScript.forEach(allOut);
    allOut.copyTo(dest);

    blurScript.destroy();
    allIn.destroy();
    allOut.destroy();
  } finally {
    if (rs != null) {
      rs.destroy();
    }
  }
}
 

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
@Override
protected Bitmap transform(@NonNull BitmapPool pool, @NonNull Bitmap toTransform, int outWidth, int outHeight) {
    Bitmap blurredBitmap = toTransform.copy(Bitmap.Config.ARGB_8888, true);

    // Allocate memory for Renderscript to work with
    //分配用于渲染脚本的内存
    Allocation input = Allocation.createFromBitmap(rs, blurredBitmap, Allocation.MipmapControl.MIPMAP_FULL, Allocation.USAGE_SHARED);
    Allocation output = Allocation.createTyped(rs, input.getType());

    // Load up an instance of the specific script that we want to use.
    //加载我们想要使用的特定脚本的实例。
    ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    script.setInput(input);

    // Set the blur radius
    //设置模糊半径
    script.setRadius(radius);

    // Start the ScriptIntrinsicBlur
    //启动 ScriptIntrinsicBlur,
    script.forEach(output);

    // Copy the output to the blurred bitmap
    //将输出复制到模糊的位图
    output.copyTo(blurredBitmap);

    return blurredBitmap;
}
 

@RequiresApi(api = Build.VERSION_CODES.KITKAT)
private void drawShadow() {
    shadow = Bitmap.createBitmap(getWidth(), getHeight(), ALPHA_8);
    shadow.eraseColor(TRANSPARENT);
    Canvas c = new Canvas(shadow);
    c.drawPath(pathZigzag, paintShadow);

    RenderScript rs = RenderScript.create(getContext());
    ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, Element.U8(rs));
    Allocation input = Allocation.createFromBitmap(rs, shadow);
    Allocation output = Allocation.createTyped(rs, input.getType());
    blur.setRadius(zigzagElevation);
    blur.setInput(input);
    blur.forEach(output);
    output.copyTo(shadow);
    input.destroy();
    output.destroy();

}
 

/**
 * 模糊图片处理
 * @param context   {@link Context}
 * @param image     待模糊的图片
 * @param outWidth  输出的宽度
 * @param outHeight 输出的高度
 * @return 模糊处理后的 Bitmap
 */
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public Bitmap blurBitmap(Context context, Bitmap image, float blurRadius, int outWidth, int outHeight) {
    // 将缩小后的图片做为预渲染的图片
    Bitmap inputBitmap = Bitmap.createScaledBitmap(image, outWidth, outHeight, false);
    // 创建一张渲染后的输出图片
    Bitmap outputBitmap = Bitmap.createBitmap(inputBitmap);
    // 创建 RenderScript 内核对象
    RenderScript rs = RenderScript.create(context);
    // 创建一个模糊效果的 RenderScript 的工具对象
    ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    // 由于 RenderScript 并没有使用 VM 来分配内存, 所以需要使用 Allocation 类来创建和分配内存空间
    // 创建 Allocation 对象的时候其实内存是空的, 需要使用 copyTo() 将数据填充进去
    Allocation tmpIn = Allocation.createFromBitmap(rs, inputBitmap);
    Allocation tmpOut = Allocation.createFromBitmap(rs, outputBitmap);
    // 设置渲染的模糊程度, 25f 是最大模糊度
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
        blurScript.setRadius(blurRadius);
    }
    // 设置 blurScript 对象的输入内存
    blurScript.setInput(tmpIn);
    // 将输出数据保存到输出内存中
    blurScript.forEach(tmpOut);
    // 将数据填充到 Allocation 中
    tmpOut.copyTo(outputBitmap);
    return outputBitmap;
}
 

private Bitmap doBlur(Context context, Bitmap bitmap, int radius)
    throws RSRuntimeException {
  RenderScript rs = null;
  Allocation input = null;
  Allocation output = null;
  ScriptIntrinsicBlur blur = null;
  try {
    rs = RenderScript.create(context);
    rs.setMessageHandler(new RenderScript.RSMessageHandler());
    input = Allocation.createFromBitmap(rs, bitmap, Allocation.MipmapControl.MIPMAP_NONE,
        Allocation.USAGE_SCRIPT);
    output = Allocation.createTyped(rs, input.getType());
    blur = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));

    blur.setInput(input);
    blur.setRadius(radius);
    blur.forEach(output);
    output.copyTo(bitmap);
  } finally {
    if (rs != null) {
      rs.destroy();
    }
    if (input != null) {
      input.destroy();
    }
    if (output != null) {
      output.destroy();
    }
    if (blur != null) {
      blur.destroy();
    }
  }

  return bitmap;
}
 

/**
 * 通过RenderScript进行图片模糊
 * @param bkg       需要模糊的bitmap
 * @param radius    模糊半径，RenderScript规定范围为[1,25]
 * @param view      显示模糊图片的ImageView
 * @param context   上下文
 * @return          消耗时间,单位毫秒（ms）
 */
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public static long blurByRenderScript(Bitmap bkg,int radius, ImageView view,Context context)
{
    long startMs = System.currentTimeMillis();
    float scaleFactor = 8;

    int width = (int)(view.getMeasuredWidth()/scaleFactor);
    int height = (int)(view.getMeasuredHeight()/scaleFactor);

    Bitmap overlay = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(overlay);
    canvas.scale(1 / scaleFactor, 1 / scaleFactor);
    Paint paint = new Paint();
    paint.setFlags(Paint.FILTER_BITMAP_FLAG);
    canvas.drawBitmap(bkg, 0, 0, paint);

    RenderScript rs = RenderScript.create(context);

    Allocation overlayAlloc = Allocation.createFromBitmap(rs, overlay);
    ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, overlayAlloc.getElement());
    blur.setInput(overlayAlloc);
    blur.setRadius(radius);
    blur.forEach(overlayAlloc);
    overlayAlloc.copyTo(overlay);

    view.setImageBitmap(overlay);

    rs.destroy();

    return System.currentTimeMillis() - startMs;
}
 

@RequiresApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
public static Bitmap renderScriptBlur(final Bitmap src,
                                      @FloatRange(
                                              from = 0, to = 25, fromInclusive = false
                                      ) final float radius,
                                      final boolean recycle) {
    RenderScript rs = null;
    Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
    try {
        rs = RenderScript.create(UtilsApp.getApp());
        rs.setMessageHandler(new RenderScript.RSMessageHandler());
        Allocation input = Allocation.createFromBitmap(rs,
                ret,
                Allocation.MipmapControl.MIPMAP_NONE,
                Allocation.USAGE_SCRIPT);
        Allocation output = Allocation.createTyped(rs, input.getType());
        ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
        blurScript.setInput(input);
        blurScript.setRadius(radius);
        blurScript.forEach(output);
        output.copyTo(ret);
    } finally {
        if (rs != null) {
            rs.destroy();
        }
    }
    return ret;
}
 

@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
@Override
protected Bitmap transform(@NonNull BitmapPool pool, @NonNull Bitmap toTransform, int outWidth, int outHeight) {
    Bitmap blurredBitmap = toTransform.copy(Bitmap.Config.ARGB_8888, true);

    // Allocate memory for Renderscript to work with
    //分配用于渲染脚本的内存
    Allocation input = Allocation.createFromBitmap(rs, blurredBitmap, Allocation.MipmapControl.MIPMAP_FULL, Allocation.USAGE_SHARED);
    Allocation output = Allocation.createTyped(rs, input.getType());

    // Load up an instance of the specific script that we want to use.
    //加载我们想要使用的特定脚本的实例。
    ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    script.setInput(input);

    // Set the blur radius
    //设置模糊半径
    script.setRadius(radius);

    // Start the ScriptIntrinsicBlur
    //启动 ScriptIntrinsicBlur,
    script.forEach(output);

    // Copy the output to the blurred bitmap
    //将输出复制到模糊的位图
    output.copyTo(blurredBitmap);

    return blurredBitmap;
}