Example usage for android.graphics Bitmap recycle

Introduction

In this page you can find the example usage for android.graphics Bitmap recycle.

Prototype

public void recycle() 

Source Link

Document

Free the native object associated with this bitmap, and clear the reference to the pixel data.

Usage

From source file:Main.java

/**
 * cut a circle from a bitmap//from w  ww. j a v  a2  s . c  om
 *
 * @param picturePath complete path name for the file.
 * @param destCube the cube dimension of dest bitmap
 * @return the bitmap
 */
public static Bitmap cutCircleFromBitmap(String picturePath, int destCube) {
    BitmapFactory.Options opts = new BitmapFactory.Options();

    opts.inDither = false; //Disable Dithering mode
    opts.inPurgeable = true; //Tell to gc that whether it needs free memory, the Bitmap can be cleared
    opts.inInputShareable = true; //Which kind of reference will be used to recover the Bitmap data after being clear, when it will be used in the future
    opts.inTempStorage = new byte[32 * 1024];

    Bitmap bitmapImg = BitmapFactory.decodeFile(picturePath, opts);

    int cube = destCube;

    if (bitmapImg == null)
        return null;

    int smallest = Math.min(bitmapImg.getWidth(), bitmapImg.getHeight());

    Bitmap output = Bitmap.createBitmap(cube, cube, Config.ARGB_8888);
    Canvas canvas = new Canvas(output);

    final int color = 0xff424242;
    final Paint paint = new Paint();

    int left = (int) ((bitmapImg.getWidth() - smallest) * 0.5);
    int top = (int) ((bitmapImg.getHeight() - smallest) * 0.5);

    final Rect rectSrc = new Rect(left, top, left + smallest, top + smallest);
    final Rect rectDest = new Rect(0, 0, cube, cube);

    paint.setAntiAlias(true);

    canvas.drawARGB(0, 0, 0, 0);

    paint.setColor(color);

    canvas.drawCircle(cube / 2, cube / 2, cube / 2, paint);

    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));

    canvas.drawBitmap(bitmapImg, rectSrc, rectDest, paint);

    bitmapImg.recycle();

    return output;
}

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From source file:edu.stanford.mobisocial.dungbeetle.feed.objects.PictureObj.java

public static DbObject from(Context context, Uri imageUri) throws IOException {
    // Query gallery for camera picture via
    // Android ContentResolver interface
    ContentResolver cr = context.getContentResolver();

    BitmapFactory.Options options = new BitmapFactory.Options();
    options.inJustDecodeBounds = true;/*from ww w  . j  av  a  2 s  . c o  m*/
    BitmapFactory.decodeStream(cr.openInputStream(imageUri), null, options);

    int targetSize = 200;
    int xScale = (options.outWidth + targetSize - 1) / targetSize;
    int yScale = (options.outHeight + targetSize - 1) / targetSize;

    int scale = xScale < yScale ? xScale : yScale;
    //uncomment this to get faster power of two scaling
    //for(int i = 0; i < 32; ++i) {
    //   int mushed = scale & ~(1 << i);
    //   if(mushed != 0)
    //      scale = mushed;
    //}

    options.inJustDecodeBounds = false;
    options.inSampleSize = scale;

    Bitmap sourceBitmap = BitmapFactory.decodeStream(cr.openInputStream(imageUri), null, options);

    int width = sourceBitmap.getWidth();
    int height = sourceBitmap.getHeight();
    int cropSize = Math.min(width, height);

    float scaleSize = ((float) targetSize) / cropSize;

    Matrix matrix = new Matrix();
    matrix.postScale(scaleSize, scaleSize);
    float rotation = PhotoTaker.rotationForImage(context, imageUri);
    if (rotation != 0f) {
        matrix.preRotate(rotation);
    }

    Bitmap resizedBitmap = Bitmap.createBitmap(sourceBitmap, 0, 0, width, height, matrix, true);

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    resizedBitmap.compress(Bitmap.CompressFormat.JPEG, 90, baos);
    byte[] data = baos.toByteArray();
    sourceBitmap.recycle();
    sourceBitmap = null;
    resizedBitmap.recycle();
    resizedBitmap = null;
    System.gc(); // TODO: gross.

    JSONObject base = new JSONObject();
    if (ContentCorral.CONTENT_CORRAL_ENABLED) {
        try {
            String type = cr.getType(imageUri);
            if (type == null) {
                type = "image/jpeg";
            }
            base.put(CorralClient.OBJ_LOCAL_URI, imageUri.toString());
            base.put(CorralClient.OBJ_MIME_TYPE, type);
            String localIp = ContentCorral.getLocalIpAddress();
            if (localIp != null) {
                base.put(Contact.ATTR_LAN_IP, localIp);
            }
        } catch (JSONException e) {
            Log.e(TAG, "impossible json error possible!");
        }
    }
    return from(base, data);
}

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From source file:com.almalence.googsharing.Thumbnail.java

private static Bitmap rotateImage(Bitmap bitmap, int orientation) {
    if (orientation != 0) {
        // We only rotate the thumbnail once even if we get OOM.
        Matrix m = new Matrix();
        m.setRotate(orientation, bitmap.getWidth() * 0.5f, bitmap.getHeight() * 0.5f);

        try {//  w w w .j av a 2  s  . c o m
            Bitmap rotated = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), m, true);
            // If the rotated bitmap is the original bitmap, then it
            // should not be recycled.
            if (rotated != bitmap)
                bitmap.recycle();
            return rotated;
        } catch (Exception t) {
            Log.w(TAG, "Failed to rotate thumbnail", t);
        }
    }

    return bitmap;
}

---

From source file:Main.java

public static Bitmap rotateAndMirror(Bitmap b, int degrees, boolean mirror) {
    if ((degrees != 0 || mirror) && b != null) {
        Matrix m = new Matrix();
        // Mirror first.
        // horizontal flip + rotation = -rotation + horizontal flip
        if (mirror) {
            m.postScale(-1, 1);//ww  w .  j a v a 2 s .co  m
            degrees = (degrees + 360) % 360;
            if (degrees == 0 || degrees == 180) {
                m.postTranslate((float) b.getWidth(), 0);
            } else if (degrees == 90 || degrees == 270) {
                m.postTranslate((float) b.getHeight(), 0);
            } else {
                throw new IllegalArgumentException("Invalid degrees=" + degrees);
            }
        }
        if (degrees != 0) {
            // clockwise
            m.postRotate(degrees, (float) b.getWidth() / 2, (float) b.getHeight() / 2);
        }

        try {
            Bitmap b2 = Bitmap.createBitmap(b, 0, 0, b.getWidth(), b.getHeight(), m, true);
            if (b != b2) {
                b.recycle();
                b = b2;
            }
        } catch (OutOfMemoryError ex) {
            // We have no memory to rotate. Return the original bitmap.
        }
    }
    return b;
}

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From source file:Main.java

public static Bitmap blurBitmap(Bitmap bitmap, Context context) {

    //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(context);

    //Create an Intrinsic Blur Script using the Renderscript  
    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);/*from  w w  w.j a v a 2 s  . c  o  m*/

    //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;

}

---

From source file:Main.java

public static Bitmap blurBitmap(Context context, Bitmap bitmap, float blur) {
    Bitmap bitmapCopy = bitmap.copy(bitmap.getConfig(), false);
    //Let's create an empty bitmap with the same size of the bitmap we want to blur
    Bitmap outBitmap = (Bitmap.createBitmap(bitmapCopy.getWidth(), bitmapCopy.getHeight(),
            Bitmap.Config.ARGB_8888));//from   w w w  .java  2 s.c  o  m

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

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

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

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

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

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

    bitmapCopy.recycle();
    //After finishing everything, we destroy the Renderscript.
    rs.destroy();
    return outBitmap;
}

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From source file:Main.java

public static Bitmap getCircularBitmap(Bitmap srcBitmap) {
    // Calculate the circular bitmap width with border
    int squareBitmapWidth = Math.min(srcBitmap.getWidth(), srcBitmap.getHeight());

    //int squareBitmapWidth = 300;

    // Initialize a new instance of Bitmap
    Bitmap dstBitmap = Bitmap.createBitmap(squareBitmapWidth, // Width
            squareBitmapWidth, // Height
            Bitmap.Config.ARGB_8888 // Config
    );/*from w w w . ja  v  a 2s  .c  o  m*/

    Canvas canvas = new Canvas(dstBitmap);

    // Initialize a new Paint instance
    Paint paint = new Paint();
    paint.setAntiAlias(true);

    Rect rect = new Rect(0, 0, squareBitmapWidth, squareBitmapWidth);

    RectF rectF = new RectF(rect);

    canvas.drawOval(rectF, paint);

    paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));

    // Calculate the left and top of copied bitmap
    float left = (squareBitmapWidth - srcBitmap.getWidth()) / 2;
    float top = (squareBitmapWidth - srcBitmap.getHeight()) / 2;

    canvas.drawBitmap(srcBitmap, left, top, paint);

    srcBitmap.recycle();

    return dstBitmap;
}

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From source file:com.lightbox.android.bitmap.BitmapUtils.java

public static Bitmap createUserPhotoThumbnail(Bitmap bitmap) {
    int width = bitmap.getWidth();
    int height = bitmap.getHeight();

    Bitmap scaledBitmap;
    //TODO get thumb size constant from somewhere, but where?
    if (width > height) {
        scaledBitmap = Bitmap.createScaledBitmap(bitmap,
                (int) (BitmapSource.THM_SIZE_PX * ((float) width / height)), BitmapSource.THM_SIZE_PX, true);
    } else {//from   w w  w.ja  v a2 s .  c  o  m
        scaledBitmap = Bitmap.createScaledBitmap(bitmap, BitmapSource.THM_SIZE_PX,
                (int) (BitmapSource.THM_SIZE_PX * ((float) height / width)), true);
    }

    Bitmap thumb = Bitmap.createBitmap(scaledBitmap, (scaledBitmap.getWidth() - BitmapSource.THM_SIZE_PX) / 2,
            (scaledBitmap.getHeight() - BitmapSource.THM_SIZE_PX) / 2, BitmapSource.THM_SIZE_PX,
            BitmapSource.THM_SIZE_PX);

    scaledBitmap.recycle();

    return thumb;
}

---

From source file:Main.java

private static Bitmap transform(Matrix scaler, Bitmap source, int targetWidth, int targetHeight, int options) {
    boolean scaleUp = (options & OPTIONS_SCALE_UP) != 0;
    boolean recycle = (options & OPTIONS_RECYCLE_INPUT) != 0;

    int deltaX = source.getWidth() - targetWidth;
    int deltaY = source.getHeight() - targetHeight;
    if (!scaleUp && (deltaX < 0 || deltaY < 0)) {
        Bitmap b2 = Bitmap.createBitmap(targetWidth, targetHeight, Bitmap.Config.ARGB_8888);
        Canvas c = new Canvas(b2);

        int deltaXHalf = Math.max(0, deltaX / 2);
        int deltaYHalf = Math.max(0, deltaY / 2);
        Rect src = new Rect(deltaXHalf, deltaYHalf, deltaXHalf + Math.min(targetWidth, source.getWidth()),
                deltaYHalf + Math.min(targetHeight, source.getHeight()));
        int dstX = (targetWidth - src.width()) / 2;
        int dstY = (targetHeight - src.height()) / 2;
        Rect dst = new Rect(dstX, dstY, targetWidth - dstX, targetHeight - dstY);
        c.drawBitmap(source, src, dst, null);
        if (recycle)
            source.recycle();
        return b2;
    }/*  www. j a va2s  .  c  o m*/

    float bitmapWidthF = source.getWidth();
    float bitmapHeightF = source.getHeight();
    float bitmapAspect = bitmapWidthF / bitmapHeightF;
    float viewAspect = (float) targetWidth / targetHeight;

    float scale = bitmapAspect > viewAspect ? targetHeight / bitmapHeightF : targetWidth / bitmapWidthF;
    if (scale < .9F || scale > 1F)
        scaler.setScale(scale, scale);
    else
        scaler = null;

    Bitmap b1;
    if (scaler != null)
        b1 = Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), scaler, true);
    else
        b1 = source;

    if (recycle && b1 != source)
        source.recycle();

    int dx1 = Math.max(0, b1.getWidth() - targetWidth);
    int dy1 = Math.max(0, b1.getHeight() - targetHeight);

    Bitmap b2 = Bitmap.createBitmap(b1, dx1 / 2, dy1 / 2, targetWidth, targetHeight);

    if (b2 != b1 && (recycle || b1 != source))
        b1.recycle();

    return b2;
}

---

From source file:Main.java

public static Bitmap scaleTo(Matrix scaler, Bitmap source, int targetWidth, int targetHeight,
        boolean fitInScreen) {
    float bitmapWidthF = source.getWidth();
    float bitmapHeightF = source.getHeight();

    float bitmapAspect = bitmapWidthF / bitmapHeightF;
    float viewAspect = (float) targetWidth / targetHeight;

    float scale = 0;
    float scaleH = targetHeight / bitmapHeightF;
    float scaleW = targetWidth / bitmapWidthF;

    if (fitInScreen && scaleH < scaleW) {
        scale = scaleH;//from  ww  w .  j a v a2  s .co m
    } else if (fitInScreen && scaleH >= scaleW) {
        scale = scaleW;
    } else if (bitmapAspect > viewAspect) {
        scale = scaleH;
    } else {
        scale = scaleW;
    }

    if (scale != 0 && (scale < .9F || scale > 1F)) {
        scaler.setScale(scale, scale);
    } else {
        scaler = null;
    }

    Bitmap b1;
    if (scaler != null) {
        // this is used for minithumb and crop, so we want to filter here.
        b1 = Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), scaler, true);
        source.recycle();
    } else {
        b1 = source;
    }
    return b1;
}

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