/**
* 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);
}
}
/**
* 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;
}
/*
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;
}
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;
}
@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;
}
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);
}
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;
}
/** 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;
}
@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;
}
}
@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);
}