Ejemplo n.º 1
0
  /**
   * Blurs the given Bitmap using RenderScript.
   *
   * @param context
   * @param bitmap
   * @return
   */
  @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
  private static Bitmap blurUsingRenderScript(final Context context, final Bitmap bitmap) {
    // Create another bitmap that will hold the results of the filter.
    Bitmap blurredBitmap = bitmap.copy(bitmap.getConfig(), true);

    if (blurredBitmap != null) {
      // Create the Renderscript instance that will do the work.
      RenderScript rs = RenderScript.create(context);

      // Allocate memory for Renderscript to work with
      Allocation input =
          Allocation.createFromBitmap(
              rs, blurredBitmap, Allocation.MipmapControl.MIPMAP_FULL, Allocation.USAGE_SCRIPT);
      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);
      script.setRadius(4); // Set the blur radius
      script.forEach(output); // Start the ScriptIntrinisicBlur
      output.copyTo(blurredBitmap); // Copy the output to the blurred bitmap
    }

    return blurredBitmap;
  }
 @SuppressLint("NewApi")
 public static void setAlbumBackground(ImageView albumBg, Bitmap buffer, Activity mActivity) {
   Bitmap buffer_output = null;
   if (buffer != null) {
     // TODO Auto-generated method stub
     int img_width = buffer.getHeight();
     int img_height = buffer.getWidth();
     float ratio = (float) img_width / img_height;
     if (ratio < 1) ratio = 1 / ratio;
     if (ratio > 2) albumBg.setVisibility(View.INVISIBLE);
     buffer_output = Bitmap.createBitmap(buffer);
     final RenderScript rs = RenderScript.create(mActivity);
     final Allocation input =
         Allocation.createFromBitmap(
             rs, buffer, 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(20.0f);
     script.setInput(input);
     script.forEach(output);
     output.copyTo(buffer_output);
   }
   if (buffer_output != null) {
     albumBg.setVisibility(View.VISIBLE);
     albumBg.setImageBitmap(buffer_output);
   } else {
     albumBg.setVisibility(View.INVISIBLE);
   }
 }
Ejemplo n.º 3
0
  /**
   * 高斯模糊
   *
   * @param bitmap
   * @return
   */
  @SuppressLint("NewApi")
  public static Bitmap blurBitmap(Bitmap bitmap) {

    // Let's create an empty bitmap with the same size of the bitmap we want
    // to blur
    Bitmap outBitmap = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888);

    // Instantiate a new Renderscript
    RenderScript rs = RenderScript.create(MyApplication.getAppContext());

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

    // Create the Allocations (in/out) with the Renderscript and the in/out
    // bitmaps
    Allocation allIn = Allocation.createFromBitmap(rs, bitmap);
    Allocation allOut = Allocation.createFromBitmap(rs, outBitmap);

    // Set the radius of the blur
    blurScript.setRadius(25.f);

    // Perform the Renderscript
    blurScript.setInput(allIn);
    blurScript.forEach(allOut);

    // Copy the final bitmap created by the out Allocation to the outBitmap
    allOut.copyTo(outBitmap);

    // recycle the original bitmap
    // bitmap.recycle();

    // After finishing everything, we destroy the Renderscript.
    rs.destroy();
    return outBitmap;
  }
Ejemplo n.º 4
0
 /*
 本程序中大概耗时为20-30毫秒
  */
 private Bitmap blurBitmap(Bitmap bitmap, int radius) {
   RenderScript rs = RenderScript.create(this);
   Allocation overlayAlloc = Allocation.createFromBitmap(rs, bitmap);
   ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, overlayAlloc.getElement());
   blur.setInput(overlayAlloc);
   blur.setRadius(radius);
   blur.forEach(overlayAlloc);
   overlayAlloc.copyTo(bitmap);
   rs.destroy();
   return bitmap;
 }
Ejemplo n.º 5
0
  public Bitmap blur(Bitmap bitmap) {
    Bitmap blurredMap = bitmap.copy(bitmap.getConfig(), true);

    RenderScript rs = RenderScript.create(this);
    final Allocation input = Allocation.createFromBitmap(rs, blurredMap);
    final Allocation output = Allocation.createTyped(rs, input.getType());
    final ScriptIntrinsicBlur script = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    script.setRadius(5f);
    script.setInput(input);
    script.forEach(output);
    output.copyTo(blurredMap);

    return blurredMap;
  }
Ejemplo n.º 6
0
  @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
  @Override
  protected Bitmap blur(Bitmap bitmap, int radius) {
    RenderScript rs = RenderScript.create(getActivity());
    Allocation overlayAlloc = Allocation.createFromBitmap(rs, bitmap);
    ScriptIntrinsicBlur blur = ScriptIntrinsicBlur.create(rs, overlayAlloc.getElement());

    blur.setInput(overlayAlloc);
    blur.setRadius(radius);
    blur.forEach(overlayAlloc);

    overlayAlloc.copyTo(bitmap);
    rs.destroy();
    return bitmap;
  }
Ejemplo n.º 7
0
  public static Bitmap blur(Context context, Bitmap image, float radius) {
    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(radius);
    theIntrinsic.setInput(tmpIn);
    theIntrinsic.forEach(tmpOut);
    tmpOut.copyTo(outputBitmap);

    return outputBitmap;
  }
  private void updateBlur() {
    if (!(mDrawable instanceof BitmapDrawable)) {
      return;
    }
    final int textViewHeight = mTextView.getHeight();
    if (textViewHeight == 0) {
      return;
    }

    // Determine the size of the TextView compared to the height of the ImageView
    final float ratio = (float) textViewHeight / mImageView.getHeight();

    // Get the Bitmap
    final BitmapDrawable bitmapDrawable = (BitmapDrawable) mDrawable;
    final Bitmap originalBitmap = bitmapDrawable.getBitmap();

    // Calculate the height as a ratio of the Bitmap
    int height = (int) (ratio * originalBitmap.getHeight());

    // The y position is the number of pixels height represents from the bottom of the Bitmap
    final int y = originalBitmap.getHeight() - height;

    final Bitmap portionToBlur =
        Bitmap.createBitmap(originalBitmap, 0, y, originalBitmap.getWidth(), height);
    final Bitmap blurredBitmap = portionToBlur.copy(Bitmap.Config.ARGB_8888, true);

    // Use RenderScript to blur the pixels
    RenderScript rs = RenderScript.create(getContext());
    ScriptIntrinsicBlur theIntrinsic = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
    Allocation tmpIn = Allocation.createFromBitmap(rs, portionToBlur);
    Allocation tmpOut = Allocation.createFromBitmap(rs, blurredBitmap);
    theIntrinsic.setRadius(25f);
    theIntrinsic.setInput(tmpIn);
    theIntrinsic.forEach(tmpOut);
    tmpOut.copyTo(blurredBitmap);
    new Canvas(blurredBitmap).drawColor(mScrimColor);

    // Create the new bitmap using the old plus the blurred portion and display it
    final Bitmap newBitmap = originalBitmap.copy(Bitmap.Config.ARGB_8888, true);
    final Canvas canvas = new Canvas(newBitmap);
    canvas.drawBitmap(blurredBitmap, 0, y, new Paint());
    mImageView.setImageBitmap(newBitmap);
  }
Ejemplo n.º 9
0
  public static Bitmap convertToBlur(Bitmap bmp, Context context) {
    final int radius = 20;
    if (Build.VERSION.SDK_INT > 16) {
      Log.d(MenuView.class.getSimpleName(), "VERSION.SDK_INT " + Build.VERSION.SDK_INT);
      Bitmap bitmap = bmp.copy(bmp.getConfig(), true);

      final RenderScript rs = RenderScript.create(context);
      final Allocation input =
          Allocation.createFromBitmap(
              rs, bmp, 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 /* e.g. 3.f */);
      script.setInput(input);
      script.forEach(output);
      output.copyTo(bitmap);
      return bitmap;
    }
    return bmp;
  }
Ejemplo n.º 10
0
  /** 图片模糊效果 */
  public static Bitmap blurBitmap(Context context, Bitmap bitmap, float radius) {
    Bitmap outBitmap =
        Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
    RenderScript rs = RenderScript.create(context);

    ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));

    Allocation allIn = Allocation.createFromBitmap(rs, bitmap);
    Allocation allOut = Allocation.createFromBitmap(rs, bitmap);

    blurScript.setRadius(radius);

    blurScript.setInput(allIn);
    blurScript.forEach(allOut);

    allOut.copyTo(outBitmap);

    bitmap.recycle();
    rs.destroy();

    return outBitmap;
  }
Ejemplo n.º 11
0
  @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
  public static Bitmap blur(Context context, Bitmap bitmap, int radius) throws RSRuntimeException {
    RenderScript rs = null;
    try {
      rs = RenderScript.create(context);
      Allocation input =
          Allocation.createFromBitmap(
              rs, bitmap, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
      Allocation output = Allocation.createTyped(rs, input.getType());
      ScriptIntrinsicBlur 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();
      }
    }

    return bitmap;
  }
  public void setBackgroundProfileImage(String url, ImageView imageView) {
    File possibleCachedFile =
        new File(getCacheDir() + File.separator, Integer.toString(url.hashCode()));

    if (possibleCachedFile.exists()) {
      Bitmap photo = BitmapFactory.decodeFile(possibleCachedFile.getPath());

      final RenderScript renderScript = RenderScript.create(this);
      final Allocation input =
          Allocation.createFromBitmap(
              renderScript, photo, Allocation.MipmapControl.MIPMAP_NONE, Allocation.USAGE_SCRIPT);
      final Allocation output = Allocation.createTyped(renderScript, input.getType());
      final ScriptIntrinsicBlur script =
          ScriptIntrinsicBlur.create(renderScript, Element.U8_4(renderScript));

      script.setRadius(3.f);
      script.setInput(input);
      script.forEach(output);
      output.copyTo(photo);

      imageView.setImageBitmap(photo);
    }
  }
  public void blur(Bitmap bkg) {
    long startMs = System.currentTimeMillis();
    float radius = 20;

    bkg = small(bkg);
    Bitmap bitmap = bkg.copy(bkg.getConfig(), true);

    final RenderScript rs = RenderScript.create(context);
    final Allocation input =
        Allocation.createFromBitmap(
            rs, bkg, 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);

    bitmap = big(bitmap);
    this.bitmaps = bitmap;
    // setBackground(new BitmapDrawable(context.getResources(), bitmap));
    rs.destroy();
    Log.d("zhangle", "blur take away:" + (System.currentTimeMillis() - startMs) + "ms");
  }
  @SuppressLint("NewApi")
  public static Bitmap fastblur(Context context, Bitmap sentBitmap, int radius) {

    try {
      if (VERSION.SDK_INT > 16) {
        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 /* e.g. 3.f */);
        script.setInput(input);
        script.forEach(output);
        output.copyTo(bitmap);
        return bitmap;
      }

      // Stack Blur v1.0 from
      // http://www.quasimondo.com/StackBlurForCanvas/StackBlurDemo.html
      //
      // Java Author: Mario Klingemann <mario at quasimondo.com>
      // http://incubator.quasimondo.com
      // created Feburary 29, 2004
      // Android port : Yahel Bouaziz <yahel at kayenko.com>
      // http://www.kayenko.com
      // ported april 5th, 2012

      // This is a compromise between Gaussian Blur and Box blur
      // It creates much better looking blurs than Box Blur, but is
      // 7x faster than my Gaussian Blur implementation.
      //
      // I called it Stack Blur because this describes best how this
      // filter works internally: it creates a kind of moving stack
      // of colors whilst scanning through the image. Thereby it
      // just has to add one new block of color to the right side
      // of the stack and remove the leftmost color. The remaining
      // colors on the topmost layer of the stack are either added on
      // or reduced by one, depending on if they are on the right or
      // on the left side of the stack.
      //
      // If you are using this algorithm in your code please add
      // the following line:
      //
      // Stack Blur Algorithm by Mario Klingemann <*****@*****.**>

      Bitmap bitmap = sentBitmap.copy(sentBitmap.getConfig(), true);

      if (radius < 1) {
        return (null);
      }

      int w = bitmap.getWidth();
      int h = bitmap.getHeight();

      int[] pix = new int[w * h];
      Log.e("pix", w + " " + h + " " + pix.length);
      bitmap.getPixels(pix, 0, w, 0, 0, w, h);

      int wm = w - 1;
      int hm = h - 1;
      int wh = w * h;
      int div = radius + radius + 1;

      int r[] = new int[wh];
      int g[] = new int[wh];
      int b[] = new int[wh];
      int rsum, gsum, bsum, x, y, i, p, yp, yi, yw;
      int vmin[] = new int[Math.max(w, h)];

      int divsum = (div + 1) >> 1;
      divsum *= divsum;
      int dv[] = new int[256 * divsum];
      for (i = 0; i < 256 * divsum; i++) {
        dv[i] = (i / divsum);
      }

      yw = yi = 0;

      int[][] stack = new int[div][3];
      int stackpointer;
      int stackstart;
      int[] sir;
      int rbs;
      int r1 = radius + 1;
      int routsum, goutsum, boutsum;
      int rinsum, ginsum, binsum;

      for (y = 0; y < h; y++) {
        rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
        for (i = -radius; i <= radius; i++) {
          p = pix[yi + Math.min(wm, Math.max(i, 0))];
          sir = stack[i + radius];
          sir[0] = (p & 0xff0000) >> 16;
          sir[1] = (p & 0x00ff00) >> 8;
          sir[2] = (p & 0x0000ff);
          rbs = r1 - Math.abs(i);
          rsum += sir[0] * rbs;
          gsum += sir[1] * rbs;
          bsum += sir[2] * rbs;
          if (i > 0) {
            rinsum += sir[0];
            ginsum += sir[1];
            binsum += sir[2];
          } else {
            routsum += sir[0];
            goutsum += sir[1];
            boutsum += sir[2];
          }
        }
        stackpointer = radius;

        for (x = 0; x < w; x++) {

          r[yi] = dv[rsum];
          g[yi] = dv[gsum];
          b[yi] = dv[bsum];

          rsum -= routsum;
          gsum -= goutsum;
          bsum -= boutsum;

          stackstart = stackpointer - radius + div;
          sir = stack[stackstart % div];

          routsum -= sir[0];
          goutsum -= sir[1];
          boutsum -= sir[2];

          if (y == 0) {
            vmin[x] = Math.min(x + radius + 1, wm);
          }
          p = pix[yw + vmin[x]];

          sir[0] = (p & 0xff0000) >> 16;
          sir[1] = (p & 0x00ff00) >> 8;
          sir[2] = (p & 0x0000ff);

          rinsum += sir[0];
          ginsum += sir[1];
          binsum += sir[2];

          rsum += rinsum;
          gsum += ginsum;
          bsum += binsum;

          stackpointer = (stackpointer + 1) % div;
          sir = stack[(stackpointer) % div];

          routsum += sir[0];
          goutsum += sir[1];
          boutsum += sir[2];

          rinsum -= sir[0];
          ginsum -= sir[1];
          binsum -= sir[2];

          yi++;
        }
        yw += w;
      }
      for (x = 0; x < w; x++) {
        rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
        yp = -radius * w;
        for (i = -radius; i <= radius; i++) {
          yi = Math.max(0, yp) + x;

          sir = stack[i + radius];

          sir[0] = r[yi];
          sir[1] = g[yi];
          sir[2] = b[yi];

          rbs = r1 - Math.abs(i);

          rsum += r[yi] * rbs;
          gsum += g[yi] * rbs;
          bsum += b[yi] * rbs;

          if (i > 0) {
            rinsum += sir[0];
            ginsum += sir[1];
            binsum += sir[2];
          } else {
            routsum += sir[0];
            goutsum += sir[1];
            boutsum += sir[2];
          }

          if (i < hm) {
            yp += w;
          }
        }
        yi = x;
        stackpointer = radius;
        for (y = 0; y < h; y++) {
          // Preserve alpha channel: ( 0xff000000 & pix[yi] )
          pix[yi] = (0xff000000 & pix[yi]) | (dv[rsum] << 16) | (dv[gsum] << 8) | dv[bsum];

          rsum -= routsum;
          gsum -= goutsum;
          bsum -= boutsum;

          stackstart = stackpointer - radius + div;
          sir = stack[stackstart % div];

          routsum -= sir[0];
          goutsum -= sir[1];
          boutsum -= sir[2];

          if (x == 0) {
            vmin[y] = Math.min(y + r1, hm) * w;
          }
          p = x + vmin[y];

          sir[0] = r[p];
          sir[1] = g[p];
          sir[2] = b[p];

          rinsum += sir[0];
          ginsum += sir[1];
          binsum += sir[2];

          rsum += rinsum;
          gsum += ginsum;
          bsum += binsum;

          stackpointer = (stackpointer + 1) % div;
          sir = stack[stackpointer];

          routsum += sir[0];
          goutsum += sir[1];
          boutsum += sir[2];

          rinsum -= sir[0];
          ginsum -= sir[1];
          binsum -= sir[2];

          yi += w;
        }
      }

      Log.e("pix", w + " " + h + " " + pix.length);
      bitmap.setPixels(pix, 0, w, 0, 0, w, h);
      return (bitmap);

    } catch (Exception e) {
      e.printStackTrace();
      return null;
    }
  }
Ejemplo n.º 15
0
  @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
  public static Bitmap fastblur(Context context, Bitmap sentBitmap, int radius) {
    if (Build.VERSION.SDK_INT > 16) {
      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);
      return bitmap;
    }

    Bitmap bitmap = sentBitmap.copy(sentBitmap.getConfig(), true);

    if (radius < 1) {
      return (null);
    }

    int w = bitmap.getWidth();
    int h = bitmap.getHeight();

    int[] pix = new int[w * h];
    bitmap.getPixels(pix, 0, w, 0, 0, w, h);

    int wm = w - 1;
    int hm = h - 1;
    int wh = w * h;
    int div = radius + radius + 1;

    int r[] = new int[wh];
    int g[] = new int[wh];
    int b[] = new int[wh];
    int rsum, gsum, bsum, x, y, i, p, yp, yi, yw;
    int vmin[] = new int[Math.max(w, h)];

    int divsum = (div + 1) >> 1;
    divsum *= divsum;
    int dv[] = new int[256 * divsum];
    for (i = 0; i < 256 * divsum; i++) {
      dv[i] = (i / divsum);
    }

    yw = yi = 0;

    int[][] stack = new int[div][3];
    int stackpointer;
    int stackstart;
    int[] sir;
    int rbs;
    int r1 = radius + 1;
    int routsum, goutsum, boutsum;
    int rinsum, ginsum, binsum;

    for (y = 0; y < h; y++) {
      rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
      for (i = -radius; i <= radius; i++) {
        p = pix[yi + Math.min(wm, Math.max(i, 0))];
        sir = stack[i + radius];
        sir[0] = (p & 0xff0000) >> 16;
        sir[1] = (p & 0x00ff00) >> 8;
        sir[2] = (p & 0x0000ff);
        rbs = r1 - Math.abs(i);
        rsum += sir[0] * rbs;
        gsum += sir[1] * rbs;
        bsum += sir[2] * rbs;
        if (i > 0) {
          rinsum += sir[0];
          ginsum += sir[1];
          binsum += sir[2];
        } else {
          routsum += sir[0];
          goutsum += sir[1];
          boutsum += sir[2];
        }
      }
      stackpointer = radius;

      for (x = 0; x < w; x++) {

        r[yi] = dv[rsum];
        g[yi] = dv[gsum];
        b[yi] = dv[bsum];

        rsum -= routsum;
        gsum -= goutsum;
        bsum -= boutsum;

        stackstart = stackpointer - radius + div;
        sir = stack[stackstart % div];

        routsum -= sir[0];
        goutsum -= sir[1];
        boutsum -= sir[2];

        if (y == 0) {
          vmin[x] = Math.min(x + radius + 1, wm);
        }
        p = pix[yw + vmin[x]];

        sir[0] = (p & 0xff0000) >> 16;
        sir[1] = (p & 0x00ff00) >> 8;
        sir[2] = (p & 0x0000ff);

        rinsum += sir[0];
        ginsum += sir[1];
        binsum += sir[2];

        rsum += rinsum;
        gsum += ginsum;
        bsum += binsum;

        stackpointer = (stackpointer + 1) % div;
        sir = stack[(stackpointer) % div];

        routsum += sir[0];
        goutsum += sir[1];
        boutsum += sir[2];

        rinsum -= sir[0];
        ginsum -= sir[1];
        binsum -= sir[2];

        yi++;
      }
      yw += w;
    }
    for (x = 0; x < w; x++) {
      rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
      yp = -radius * w;
      for (i = -radius; i <= radius; i++) {
        yi = Math.max(0, yp) + x;

        sir = stack[i + radius];

        sir[0] = r[yi];
        sir[1] = g[yi];
        sir[2] = b[yi];

        rbs = r1 - Math.abs(i);

        rsum += r[yi] * rbs;
        gsum += g[yi] * rbs;
        bsum += b[yi] * rbs;

        if (i > 0) {
          rinsum += sir[0];
          ginsum += sir[1];
          binsum += sir[2];
        } else {
          routsum += sir[0];
          goutsum += sir[1];
          boutsum += sir[2];
        }

        if (i < hm) {
          yp += w;
        }
      }
      yi = x;
      stackpointer = radius;
      for (y = 0; y < h; y++) {
        pix[yi] = (0xff000000 & pix[yi]) | (dv[rsum] << 16) | (dv[gsum] << 8) | dv[bsum];

        rsum -= routsum;
        gsum -= goutsum;
        bsum -= boutsum;

        stackstart = stackpointer - radius + div;
        sir = stack[stackstart % div];

        routsum -= sir[0];
        goutsum -= sir[1];
        boutsum -= sir[2];

        if (x == 0) {
          vmin[y] = Math.min(y + r1, hm) * w;
        }
        p = x + vmin[y];

        sir[0] = r[p];
        sir[1] = g[p];
        sir[2] = b[p];

        rinsum += sir[0];
        ginsum += sir[1];
        binsum += sir[2];

        rsum += rinsum;
        gsum += ginsum;
        bsum += binsum;

        stackpointer = (stackpointer + 1) % div;
        sir = stack[stackpointer];

        routsum += sir[0];
        goutsum += sir[1];
        boutsum += sir[2];

        rinsum -= sir[0];
        ginsum -= sir[1];
        binsum -= sir[2];

        yi += w;
      }
    }
    bitmap.setPixels(pix, 0, w, 0, 0, w, h);
    return (bitmap);
  }