Example usage for java.nio IntBuffer get

Introduction

In this page you can find the example usage for java.nio IntBuffer get.

Prototype

public abstract int get(int index);

Source Link

Document

Returns an int at the specified index; the position is not changed.

Usage

From source file:edu.iu.daal_pca.Service.java

public static void printAprioriItemsets(HomogenNumericTable largeItemsetsTable,
        HomogenNumericTable largeItemsetsSupportTable) {
    /* Get sizes of tables to store large item sets */
    int nItemsInLargeItemsets = (int) largeItemsetsTable.getNumberOfRows();
    int largeItemsetCount = (int) largeItemsetsSupportTable.getNumberOfRows();
    int nItemsetToPrint = 20;

    /* Get item sets and their support values */
    IntBuffer bufLargeItemsets = IntBuffer
            .allocate(nItemsInLargeItemsets * (int) largeItemsetsTable.getNumberOfColumns());
    bufLargeItemsets = largeItemsetsTable.getBlockOfRows(0, nItemsInLargeItemsets, bufLargeItemsets);
    int[] largeItemsets = new int[bufLargeItemsets.capacity()];
    bufLargeItemsets.get(largeItemsets);

    IntBuffer bufLargeItemsetsSupportData = IntBuffer
            .allocate(largeItemsetCount * (int) largeItemsetsSupportTable.getNumberOfColumns());
    bufLargeItemsetsSupportData = largeItemsetsSupportTable.getBlockOfRows(0, largeItemsetCount,
            bufLargeItemsetsSupportData);
    int[] largeItemsetsSupportData = new int[bufLargeItemsetsSupportData.capacity()];
    bufLargeItemsetsSupportData.get(largeItemsetsSupportData);

    ArrayList<ArrayList<Integer>> largeItemsetsVector = new ArrayList<ArrayList<Integer>>(largeItemsetCount);

    for (int i = 0; i < largeItemsetCount; i++) {
        largeItemsetsVector.add(new ArrayList<Integer>());
    }/*w ww . j av  a2  s . c o  m*/

    for (int i = 0; i < nItemsInLargeItemsets; i++) {
        largeItemsetsVector.get(largeItemsets[2 * i]).add(largeItemsets[2 * i + 1]);
    }

    ArrayList<Integer> supportVector = new ArrayList<Integer>(largeItemsetCount);
    for (int i = 0; i < largeItemsetCount; i++) {
        supportVector.add(0);
    }

    for (int i = 0; i < largeItemsetCount; i++) {
        int index = largeItemsetsSupportData[2 * i];
        supportVector.set(index, largeItemsetsSupportData[2 * i + 1]);
    }

    System.out.println("Apriori example program results");

    System.out.println("Last " + nItemsetToPrint + " large itemsets: ");
    System.out.println("Itemset\t\t\tSupport");

    int iMin = ((largeItemsetCount > nItemsetToPrint) ? largeItemsetCount - nItemsetToPrint : 0);
    for (int i = iMin; i < largeItemsetCount; i++) {
        System.out.print("{");
        for (int l = 0; l < largeItemsetsVector.get(i).size() - 1; l++) {
            System.out.print(largeItemsetsVector.get(i).get(l) + ", ");
        }
        System.out.print(largeItemsetsVector.get(i).get(largeItemsetsVector.get(i).size() - 1) + "}\t\t");

        System.out.println(supportVector.get(i));
    }
}

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From source file:org.jtrfp.trcl.gpu.GLShader.java

private void printStatusInfo(GL3 gl, int shaderID) {
    IntBuffer statBuf = IntBuffer.allocate(1);
    gl.glGetShaderiv(shaderID, GL4.GL_COMPILE_STATUS, statBuf);
    if (statBuf.get(0) == GL4.GL_FALSE) {
        statBuf.clear();//w  ww . j a  v  a 2 s.co m
        gl.glGetShaderiv(shaderID, GL4.GL_INFO_LOG_LENGTH, statBuf);
        ByteBuffer log = ByteBuffer.allocate(statBuf.get(0));
        gl.glGetShaderInfoLog(shaderID, statBuf.get(0), null, log);
        System.out.println(Charset.forName("US-ASCII").decode(log).toString());
        System.exit(1);
    }
}

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From source file:ja.lingo.engine.searchindex.SearchIndex.java

private INode _deserialize(IntBuffer buffer, int deep) throws IOException {
    if (deep > 0) {
        memoryNodesLoaded++;//from  w w w  .  j a v a  2s . com

        //int size = buffer.get( offset );
        int childrenCount = buffer.get(offset + 1);
        char key = (char) buffer.get(offset + 2);
        int value = buffer.get(offset + 3);

        offset += 4;

        IMutableNode node = Node.create(key, value);

        deep--;
        for (int i = 0; i < childrenCount; i++) {
            node.addChild(_deserialize(buffer, deep));
        }
        return node;
    } else {
        lazyNodesLoaded++;
        INode node = new LazyNode(buffer, offset);

        int size = buffer.get(offset);
        offset += size >> 2;

        return node;
    }
}

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From source file:edu.csun.ecs.cs.multitouchj.audio.openal.OpenAlAudioPlayer.java

@Override
public synchronized void update() {
    IntBuffer emptyBuffers = unqueueEmptyBuffers();
    for (int i = 0; i < emptyBuffers.limit(); i++) {
        setBufferStatus(emptyBuffers.get(i), false);
        eventOccurred("bufferEmptied");
    }//from w  w w .  ja v  a 2  s.  c  om

    if ((!isStoppedEventSent) && (getStatus().equals(Status.STOPPED))) {
        eventOccurred("audioStopped");
    }
}

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From source file:xbird.util.nio.RemoteMemoryMappedFile.java

private int[] recvResponse(final ReadableByteChannel channel, final ByteBuffer buf, final int dstlen)
        throws IOException {
    buf.clear();/*from   w  w  w .  ja va2 s .c  o m*/
    // set endian optimized for this machine
    final boolean isBufBigEndian = (buf.order() == ByteOrder.BIG_ENDIAN);
    if (_bigEndian != isBufBigEndian) {
        buf.order(_bigEndian ? ByteOrder.BIG_ENDIAN : ByteOrder.LITTLE_ENDIAN);
    }
    NIOUtils.readFully(channel, buf, _pageSize);
    buf.flip();
    IntBuffer ibuf = buf.asIntBuffer();
    int[] dst = new int[dstlen];
    ibuf.get(dst);
    return dst;
}

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From source file:com.clov4r.moboplayer.android.nil.codec.SubtitleJni.java

public Bitmap createBitmapOfSubtitle(ByteBuffer data, int width, int height) {
    IntBuffer intBuffer = data.asIntBuffer();
    int[] dataArray = new int[intBuffer.limit()];
    intBuffer.get(dataArray);
    Bitmap rest = Bitmap.createBitmap(dataArray, width, height, Config.RGB_565);

    return rest;//from   w ww. ja va2 s.co  m

}

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From source file:com.linkedin.pinot.core.startree.StarTreeDataSorter.java

/**
 * Sort from to given start (inclusive) to end (exclusive) as per the provided sort order.
 * @param startRecordId inclusive//from   ww  w  .j  a  v a  2 s  . co m
 * @param endRecordId exclusive
 * @param sortOrder
 */
public void sort(int startRecordId, int endRecordId, final int[] sortOrder) {
    int length = endRecordId - startRecordId;
    final int startOffset = startRecordId * totalSizeInBytes;

    List<Integer> idList = new ArrayList<Integer>();
    for (int i = startRecordId; i < endRecordId; i++) {
        idList.add(i - startRecordId);
    }

    Comparator<Integer> comparator = new Comparator<Integer>() {
        byte[] buf1 = new byte[dimensionSizeInBytes];
        byte[] buf2 = new byte[dimensionSizeInBytes];

        @Override
        public int compare(Integer o1, Integer o2) {
            int pos1 = startOffset + (o1) * totalSizeInBytes;
            int pos2 = startOffset + (o2) * totalSizeInBytes;

            mappedByteBuffer.copyTo(pos1, buf1, 0, dimensionSizeInBytes);
            mappedByteBuffer.copyTo(pos2, buf2, 0, dimensionSizeInBytes);

            IntBuffer bb1 = ByteBuffer.wrap(buf1).asIntBuffer();
            IntBuffer bb2 = ByteBuffer.wrap(buf2).asIntBuffer();

            for (int dimIndex : sortOrder) {
                int v1 = bb1.get(dimIndex);
                int v2 = bb2.get(dimIndex);
                if (v1 != v2) {
                    return v1 - v2;
                }
            }
            return 0;
        }
    };

    Collections.sort(idList, comparator);
    int[] currentPositions = new int[length];
    int[] indexToRecordIdMapping = new int[length];

    byte[] buf1 = new byte[totalSizeInBytes];
    byte[] buf2 = new byte[totalSizeInBytes];

    for (int i = 0; i < length; i++) {
        currentPositions[i] = i;
        indexToRecordIdMapping[i] = i;
    }

    for (int i = 0; i < length; i++) {
        int thisRecordId = indexToRecordIdMapping[i];
        int thisRecordIdPos = currentPositions[thisRecordId];

        int thatRecordId = idList.get(i);
        int thatRecordIdPos = currentPositions[thatRecordId];

        // swap the buffers
        mappedByteBuffer.copyTo(startOffset + thisRecordIdPos * totalSizeInBytes, buf1, 0, totalSizeInBytes);
        mappedByteBuffer.copyTo(startOffset + thatRecordIdPos * totalSizeInBytes, buf2, 0, totalSizeInBytes);
        mappedByteBuffer.readFrom(buf2, 0, startOffset + thisRecordIdPos * totalSizeInBytes, totalSizeInBytes);
        mappedByteBuffer.readFrom(buf1, 0, startOffset + thatRecordIdPos * totalSizeInBytes, totalSizeInBytes);

        // update the positions
        indexToRecordIdMapping[i] = thatRecordId;
        indexToRecordIdMapping[thatRecordIdPos] = thisRecordId;

        currentPositions[thatRecordId] = i;
        currentPositions[thisRecordId] = thatRecordIdPos;
    }
}

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From source file:itemrender.client.rendering.FBOHelper.java

public void saveToFile(File file) {
    // Bind framebuffer texture
    GlStateManager.bindTexture(textureID);

    GL11.glPixelStorei(GL11.GL_PACK_ALIGNMENT, 1);
    GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);

    int width = GL11.glGetTexLevelParameteri(GL11.GL_TEXTURE_2D, 0, GL11.GL_TEXTURE_WIDTH);
    int height = GL11.glGetTexLevelParameteri(GL11.GL_TEXTURE_2D, 0, GL11.GL_TEXTURE_HEIGHT);

    IntBuffer texture = BufferUtils.createIntBuffer(width * height);
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL12.GL_BGRA, GL12.GL_UNSIGNED_INT_8_8_8_8_REV, texture);

    int[] texture_array = new int[width * height];
    texture.get(texture_array);

    BufferedImage image = new BufferedImage(renderTextureSize, renderTextureSize, BufferedImage.TYPE_INT_ARGB);
    image.setRGB(0, 0, renderTextureSize, renderTextureSize, texture_array, 0, width);

    file.mkdirs();/*from   w w w . j  ava2  s .  c o m*/
    try {
        ImageIO.write(image, "png", file);
    } catch (Exception e) {
        // Do nothing
    }
}

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From source file:itemrender.client.rendering.FBOHelper.java

public String getBase64() {
    // Bind framebuffer texture
    GlStateManager.bindTexture(textureID);

    GL11.glPixelStorei(GL11.GL_PACK_ALIGNMENT, 1);
    GL11.glPixelStorei(GL11.GL_UNPACK_ALIGNMENT, 1);

    int width = GL11.glGetTexLevelParameteri(GL11.GL_TEXTURE_2D, 0, GL11.GL_TEXTURE_WIDTH);
    int height = GL11.glGetTexLevelParameteri(GL11.GL_TEXTURE_2D, 0, GL11.GL_TEXTURE_HEIGHT);

    IntBuffer texture = BufferUtils.createIntBuffer(width * height);
    GL11.glGetTexImage(GL11.GL_TEXTURE_2D, 0, GL12.GL_BGRA, GL12.GL_UNSIGNED_INT_8_8_8_8_REV, texture);

    int[] texture_array = new int[width * height];
    texture.get(texture_array);

    BufferedImage image = new BufferedImage(renderTextureSize, renderTextureSize, BufferedImage.TYPE_INT_ARGB);
    image.setRGB(0, 0, renderTextureSize, renderTextureSize, texture_array, 0, width);

    ByteArrayOutputStream out = new ByteArrayOutputStream();
    try {/*  www . ja v  a 2s. c  o m*/
        ImageIO.write(image, "PNG", out);
    } catch (IOException e) {
        // Do nothing
    }

    return Base64.encodeBase64String(out.toByteArray());
}

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From source file:com.adobe.plugins.FastCanvasRenderer.java

public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    Log.i("CANVAS", "CanvasRenderer onSurfaceCreated. config:" + config.toString() + " gl:" + gl.toString());

    IntBuffer ib = IntBuffer.allocate(100);
    ib.position(0);/*www . j a va  2s .c o  m*/
    GLES10.glGetIntegerv(GLES10.GL_RED_BITS, ib);
    int red = ib.get(0);
    GLES10.glGetIntegerv(GLES10.GL_GREEN_BITS, ib);
    int green = ib.get(0);
    GLES10.glGetIntegerv(GLES10.GL_BLUE_BITS, ib);
    int blue = ib.get(0);
    GLES10.glGetIntegerv(GLES10.GL_STENCIL_BITS, ib);
    int stencil = ib.get(0);
    GLES10.glGetIntegerv(GLES10.GL_DEPTH_BITS, ib);
    int depth = ib.get(0);

    Log.i("CANVAS", "CanvasRenderer R=" + red + " G=" + green + " B=" + blue + " DEPETH=" + depth + " STENCIL="
            + stencil);
}

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