Examples with DoubleBuffer java.nio.DoubleBuffer used on opensource projects

Example 16 with DoubleBuffer

use of java.nio.DoubleBuffer in project robovm by robovm.

the class DoubleBufferTest method testHashCode.

public void testHashCode() {
    buf.clear();
    DoubleBuffer readonly = buf.asReadOnlyBuffer();
    DoubleBuffer duplicate = buf.duplicate();
    assertTrue(buf.hashCode() == readonly.hashCode());
    assertTrue(buf.capacity() > 5);
    duplicate.position(buf.capacity() / 2);
    assertTrue(buf.hashCode() != duplicate.hashCode());
}

Example 17 with DoubleBuffer

use of java.nio.DoubleBuffer in project robovm by robovm.

the class WrappedDoubleBufferTest method testWrappedDoubleuffer_IllegalArg.

/**
     * @tests java.nio.CharBuffer#allocate(char[],int,int)
     * 
     */
public void testWrappedDoubleuffer_IllegalArg() {
    double[] array = new double[20];
    try {
        DoubleBuffer.wrap(array, -1, 0);
        //$NON-NLS-1$
        fail("Should throw Exception");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    try {
        DoubleBuffer.wrap(array, 21, 0);
        //$NON-NLS-1$
        fail("Should throw Exception");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    try {
        DoubleBuffer.wrap(array, 0, -1);
        //$NON-NLS-1$
        fail("Should throw Exception");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    try {
        DoubleBuffer.wrap(array, 0, 21);
        //$NON-NLS-1$
        fail("Should throw Exception");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    try {
        DoubleBuffer.wrap(array, Integer.MAX_VALUE, 1);
        //$NON-NLS-1$
        fail("Should throw Exception");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    try {
        DoubleBuffer.wrap(array, 1, Integer.MAX_VALUE);
        //$NON-NLS-1$
        fail("Should throw Exception");
    } catch (IndexOutOfBoundsException e) {
    // expected
    }
    try {
        DoubleBuffer.wrap((double[]) null, -1, 0);
        //$NON-NLS-1$
        fail("Should throw NPE");
    } catch (NullPointerException e) {
    }
    DoubleBuffer buf = DoubleBuffer.wrap(array, 2, 16);
    assertEquals(buf.position(), 2);
    assertEquals(buf.limit(), 18);
    assertEquals(buf.capacity(), 20);
}

Example 18 with DoubleBuffer

use of java.nio.DoubleBuffer in project robovm by robovm.

the class ReadOnlyDoubleBufferTest method testPutDoubleBuffer.

public void testPutDoubleBuffer() {
    DoubleBuffer other = DoubleBuffer.allocate(1);
    try {
        buf.put(other);
        //$NON-NLS-1$
        fail("Should throw ReadOnlyBufferException");
    } catch (ReadOnlyBufferException e) {
    // expected
    }
    try {
        buf.put((DoubleBuffer) null);
        //$NON-NLS-1$
        fail("Should throw ReadOnlyBufferException");
    } catch (ReadOnlyBufferException e) {
    // expected
    }
    try {
        buf.put(buf);
        //$NON-NLS-1$
        fail("Should throw ReadOnlyBufferException");
    } catch (ReadOnlyBufferException e) {
    // expected
    }
}

Example 19 with DoubleBuffer

use of java.nio.DoubleBuffer in project libgdx by libgdx.

the class BufferUtilsTest method create.

@Override
public void create() {
    //Not emulated in gwt
    //ByteBuffer bytebuffer = BufferUtils.newUnsafeByteBuffer(1000 * 1000);
    //BufferUtils.disposeUnsafeByteBuffer(bytebuffer);
    ByteBuffer bb = BufferUtils.newByteBuffer(8);
    CharBuffer cb = BufferUtils.newCharBuffer(8);
    ShortBuffer sb = BufferUtils.newShortBuffer(8);
    IntBuffer ib = BufferUtils.newIntBuffer(8);
    LongBuffer lb = BufferUtils.newLongBuffer(8);
    FloatBuffer fb = BufferUtils.newFloatBuffer(8);
    DoubleBuffer db = BufferUtils.newDoubleBuffer(8);
    bb.position(4);
    BufferUtils.copy(new byte[] { 1, 2, 3, 4 }, 0, bb, 4);
    checkInt(bb.get(), 1);
    checkInt(bb.get(), 2);
    checkInt(bb.get(), 3);
    checkInt(bb.get(), 4);
    cb.position(4);
    BufferUtils.copy(new char[] { 1, 2, 3, 4 }, 0, cb, 4);
    checkInt(cb.get(), 1);
    checkInt(cb.get(), 2);
    checkInt(cb.get(), 3);
    checkInt(cb.get(), 4);
    cb.position(0);
    BufferUtils.copy(new char[] { 5, 6, 7, 8 }, 1, cb, 3);
    checkInt(cb.get(), 6);
    checkInt(cb.get(), 7);
    checkInt(cb.get(), 8);
    sb.position(4);
    BufferUtils.copy(new short[] { 1, 2, 3, 4 }, 0, sb, 4);
    checkInt(sb.get(), 1);
    checkInt(sb.get(), 2);
    checkInt(sb.get(), 3);
    checkInt(sb.get(), 4);
    sb.position(0);
    BufferUtils.copy(new short[] { 5, 6, 7, 8 }, 1, sb, 3);
    checkInt(sb.get(), 6);
    checkInt(sb.get(), 7);
    checkInt(sb.get(), 8);
    ib.position(4);
    BufferUtils.copy(new int[] { 1, 2, 3, 4 }, 0, ib, 4);
    checkInt(ib.get(), 1);
    checkInt(ib.get(), 2);
    checkInt(ib.get(), 3);
    checkInt(ib.get(), 4);
    ib.position(0);
    BufferUtils.copy(new int[] { 5, 6, 7, 8 }, 1, ib, 3);
    checkInt(ib.get(), 6);
    checkInt(ib.get(), 7);
    checkInt(ib.get(), 8);
    lb.position(4);
    BufferUtils.copy(new long[] { 1, 2, 3, 4 }, 0, lb, 4);
    checkInt(lb.get(), 1);
    checkInt(lb.get(), 2);
    checkInt(lb.get(), 3);
    checkInt(lb.get(), 4);
    lb.position(0);
    BufferUtils.copy(new long[] { 5, 6, 7, 8 }, 1, lb, 3);
    checkInt(lb.get(), 6);
    checkInt(lb.get(), 7);
    checkInt(lb.get(), 8);
    fb.position(4);
    BufferUtils.copy(new float[] { 1, 2, 3, 4 }, 0, fb, 4);
    checkFloat(fb.get(), 1);
    checkFloat(fb.get(), 2);
    checkFloat(fb.get(), 3);
    checkFloat(fb.get(), 4);
    fb.position(0);
    BufferUtils.copy(new float[] { 5, 6, 7, 8 }, 1, fb, 3);
    checkFloat(fb.get(), 6);
    checkFloat(fb.get(), 7);
    checkFloat(fb.get(), 8);
    if (Gdx.app.getType() != ApplicationType.WebGL) {
        // gwt throws: NYI: Numbers.doubleToRawLongBits
        db.position(4);
        BufferUtils.copy(new double[] { 1, 2, 3, 4 }, 0, db, 4);
        checkFloat(db.get(), 1);
        checkFloat(db.get(), 2);
        checkFloat(db.get(), 3);
        checkFloat(db.get(), 4);
        db.position(0);
        BufferUtils.copy(new double[] { 5, 6, 7, 8 }, 1, db, 3);
        checkFloat(db.get(), 6);
        checkFloat(db.get(), 7);
        checkFloat(db.get(), 8);
    }
    ByteBuffer bb2 = BufferUtils.newByteBuffer(4);
    bb.position(4);
    BufferUtils.copy(bb, bb2, 4);
    checkInt(bb2.get(), 1);
    checkInt(bb2.get(), 2);
    checkInt(bb2.get(), 3);
    checkInt(bb2.get(), 4);
    bench();
}

Example 20 with DoubleBuffer

use of java.nio.DoubleBuffer in project bigbluebutton by bigbluebutton.

the class Frame method createIndexer.

/** Returns an {@link Indexer} for the <i>i</i>th image plane. */
public <I extends Indexer> I createIndexer(boolean direct, int i) {
    long[] sizes = { imageHeight, imageWidth, imageChannels };
    long[] strides = { imageStride, imageChannels, 1 };
    Buffer buffer = image[i];
    Object array = buffer.hasArray() ? buffer.array() : null;
    switch(imageDepth) {
        case DEPTH_UBYTE:
            return array != null ? (I) UByteIndexer.create((byte[]) array, sizes, strides) : direct ? (I) UByteIndexer.create((ByteBuffer) buffer, sizes, strides) : (I) UByteIndexer.create(new BytePointer((ByteBuffer) buffer), sizes, strides, false);
        case DEPTH_BYTE:
            return array != null ? (I) ByteIndexer.create((byte[]) array, sizes, strides) : direct ? (I) ByteIndexer.create((ByteBuffer) buffer, sizes, strides) : (I) ByteIndexer.create(new BytePointer((ByteBuffer) buffer), sizes, strides, false);
        case DEPTH_USHORT:
            return array != null ? (I) UShortIndexer.create((short[]) array, sizes, strides) : direct ? (I) UShortIndexer.create((ShortBuffer) buffer, sizes, strides) : (I) UShortIndexer.create(new ShortPointer((ShortBuffer) buffer), sizes, strides, false);
        case DEPTH_SHORT:
            return array != null ? (I) ShortIndexer.create((short[]) array, sizes, strides) : direct ? (I) ShortIndexer.create((ShortBuffer) buffer, sizes, strides) : (I) ShortIndexer.create(new ShortPointer((ShortBuffer) buffer), sizes, strides, false);
        case DEPTH_INT:
            return array != null ? (I) IntIndexer.create((int[]) array, sizes, strides) : direct ? (I) IntIndexer.create((IntBuffer) buffer, sizes, strides) : (I) IntIndexer.create(new IntPointer((IntBuffer) buffer), sizes, strides, false);
        case DEPTH_LONG:
            return array != null ? (I) LongIndexer.create((long[]) array, sizes, strides) : direct ? (I) LongIndexer.create((LongBuffer) buffer, sizes, strides) : (I) LongIndexer.create(new LongPointer((LongBuffer) buffer), sizes, strides, false);
        case DEPTH_FLOAT:
            return array != null ? (I) FloatIndexer.create((float[]) array, sizes, strides) : direct ? (I) FloatIndexer.create((FloatBuffer) buffer, sizes, strides) : (I) FloatIndexer.create(new FloatPointer((FloatBuffer) buffer), sizes, strides, false);
        case DEPTH_DOUBLE:
            return array != null ? (I) DoubleIndexer.create((double[]) array, sizes, strides) : direct ? (I) DoubleIndexer.create((DoubleBuffer) buffer, sizes, strides) : (I) DoubleIndexer.create(new DoublePointer((DoubleBuffer) buffer), sizes, strides, false);
        default:
            assert false;
    }
    return null;
}