java.nio.IntBuffer#position ( )源码实例Demo

下面列出了java.nio.IntBuffer#position ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： yosegi 文件： UnsafeOptimizeStringColumnBinaryMaker.java

@Override
public IntBuffer getIndexIntBuffer(
    final int size ,
    final byte[] buffer ,
    final int start ,
    final int length ,
    final ByteOrder order ) throws IOException {
  IReadSupporter wrapBuffer =
      ByteBufferSupporterFactory.createReadSupporter( buffer , start , length , order );
  IntBuffer result = IntBuffer.allocate( size );
  for ( int i = 0 ; i < size ; i++ ) {
    result.put( NumberToBinaryUtils.getUnsignedShortToInt( wrapBuffer.getShort() ) );
  }
  result.position( 0 );
  return result;
}

源代码2 项目： yosegi 文件： UnsafeOptimizeDoubleColumnBinaryMaker.java

@Override
public IntBuffer getIndexIntBuffer(
    final byte[] buffer ,
    final int start ,
    final int length ,
    final ByteOrder order ) throws IOException {
  int size = length / Byte.BYTES;
  IReadSupporter wrapBuffer =
      ByteBufferSupporterFactory.createReadSupporter( buffer , start , length , order );
  IntBuffer result = IntBuffer.allocate( size );
  for ( int i = 0 ; i < size ; i++ ) {
    result.put( NumberToBinaryUtils.getUnsignedByteToInt( wrapBuffer.getByte() ) );
  }
  result.position( 0 );
  return result;
}

源代码3 项目： JavaAV 文件： Image.java

public static void copy(IntBuffer srcBuf, int srcStep, IntBuffer dstBuf, int dstStep) {
	int w = Math.min(srcStep, dstStep);
	int srcLine = srcBuf.position();
	int dstLine = dstBuf.position();

	while (srcLine < srcBuf.capacity() && dstLine < dstBuf.capacity()) {
		srcBuf.position(srcLine);
		dstBuf.position(dstLine);

		w = Math.min(Math.min(w, srcBuf.remaining()), dstBuf.remaining());

		for (int x = 0; x < w; x++) {
			int in = srcBuf.get();
			int out = in;
			dstBuf.put(out);
		}

		srcLine += srcStep;
		dstLine += dstStep;
	}
}

源代码4 项目： jmonkeyengine 文件： LwjglALC.java

@Override
public void alcGetInteger(int param, IntBuffer buffer, int size) {
    if (buffer.position() != 0) throw new AssertionError();
    if (buffer.limit() != size) throw new AssertionError();
    
    ALCcontext context = ALC10.alcGetCurrentContext();
    ALCdevice device = ALC10.alcGetContextsDevice(context);
    ALC10.alcGetInteger(device, param, buffer);
}

源代码5 项目： ttt 文件： GlyphMapping.java

private static int[] getGlyphs(GlyphSequence gs) {
    IntBuffer gb = gs.getGlyphs();
    gb.rewind();
    int[] glyphs = new int[gb.limit() - gb.position()];
    for (int i = 0; gb.position() < gb.limit(); ) {
        glyphs[i++] = gb.get();
    }
    return glyphs;
}

源代码6 项目： PanoramaGL 文件： MatrixTrackingGL.java

public void glMultMatrixx(IntBuffer m) {
    int position = m.position();
    mCurrent.glMultMatrixx(m);
    m.position(position);
    mgl.glMultMatrixx(m);
    if ( _check) check();
}

源代码7 项目： multiple-dimension-spread 文件： OptimizeDoubleColumnBinaryMaker.java

@Override
public IntBuffer getIndexIntBuffer( final byte[] buffer , final int start , final int length ) throws IOException{
  int size = length / Short.BYTES;
  ByteBuffer wrapBuffer = ByteBuffer.wrap( buffer , start , length );
  IntBuffer result = IntBuffer.allocate( size );
  for( int i = 0 ; i < size ; i++ ){
    result.put( (int)( wrapBuffer.getShort() ) );
  }
  result.position( 0 );
  return result;
}

源代码8 项目： multiple-dimension-spread 文件： OptimizeStringColumnBinaryMaker.java

@Override
public IntBuffer getIndexIntBuffer( final int size , final ByteBuffer wrapBuffer ) throws IOException{
  IntBuffer result = IntBuffer.allocate( size );
  for( int i = 0 ; i < size ; i++ ){
    result.put( wrapBuffer.getInt() );
  }
  result.position( 0 );
  return result;
}

源代码9 项目： j2objc 文件： ICUResourceBundleReader.java

private int[] getInts(int offset, int count) {
    int[] ints = new int[count];
    if (count <= 16) {
        for(int i = 0; i < count; offset += 4, ++i) {
            ints[i] = bytes.getInt(offset);
        }
    } else {
        IntBuffer temp = bytes.asIntBuffer();
        temp.position(offset / 4);
        temp.get(ints);
    }
    return ints;
}

源代码10 项目： trekarta 文件： ICUResourceBundleReader.java

private int[] getInts(int offset, int count) {
    int[] ints = new int[count];
    if (count <= 16) {
        for(int i = 0; i < count; offset += 4, ++i) {
            ints[i] = bytes.getInt(offset);
        }
    } else {
        IntBuffer temp = bytes.asIntBuffer();
        temp.position(offset / 4);
        temp.get(ints);
    }
    return ints;
}

源代码11 项目： multiple-dimension-spread 文件： UnsafeOptimizeDoubleColumnBinaryMaker.java

@Override
public IntBuffer getIndexIntBuffer( final byte[] buffer , final int start , final int length , ByteOrder order ) throws IOException{
  int size = length / Integer.BYTES;
  IReadSupporter wrapBuffer = ByteBufferSupporterFactory.createReadSupporter( buffer , start , length , order );
  IntBuffer result = IntBuffer.allocate( size );
  for( int i = 0 ; i < size ; i++ ){
    result.put( wrapBuffer.getInt() );
  }
  result.position( 0 );
  return result;
}

源代码12 项目： multiple-dimension-spread 文件： UnsafeOptimizeFloatColumnBinaryMaker.java

@Override
public IntBuffer getIndexIntBuffer( final byte[] buffer , final int start , final int length , ByteOrder order ) throws IOException{
  int size = length / Integer.BYTES;
  IReadSupporter wrapBuffer = ByteBufferSupporterFactory.createReadSupporter( buffer , start , length , order );
  IntBuffer result = IntBuffer.allocate( size );
  for( int i = 0 ; i < size ; i++ ){
    result.put( wrapBuffer.getInt() );
  }
  result.position( 0 );
  return result;
}

源代码13 项目： multiple-dimension-spread 文件： OptimizeLongColumnBinaryMaker.java

@Override
public IntBuffer getIndexIntBuffer( final byte[] buffer , final int start , final int length ) throws IOException{
  int size = length / Short.BYTES;
  ByteBuffer wrapBuffer = ByteBuffer.wrap( buffer , start , length );
  IntBuffer result = IntBuffer.allocate( size );
  for( int i = 0 ; i < size ; i++ ){
    result.put( (int)( wrapBuffer.getShort() ) );
  }
  result.position( 0 );
  return result;
}

源代码14 项目： netbeans 文件： CacheReader.java

/** Locates metadata related to the passed id (converted into a byte
 * array).  Returns either a bytebuffer with the position set to the
 * start of the metadata or null.  */
private ByteBuffer findMetadataFor (byte[] id) throws IOException {
    System.err.println("FindMetadataFor " + new String(id));
    
    long result = -1;
    //Get a buffer clone so we don't have threading problems - never
    //use the master buffer
    ByteBuffer buf = getMetaBuffer().asReadOnlyBuffer();
    
    IntBuffer ibuf = buf.asIntBuffer();
    
    do {
       //First, see if the ID (image filename) length matches the ID
       //we received - if it doesn't, no need to examine the record
       int thisIdLength = ibuf.get();
       System.err.println("pos:" + ibuf.position() + " idLen: " + thisIdLength + " looking for len: " + id.length);
       
       if (thisIdLength == id.length) {
           //Mark the start of this metadata record and position to
           //the start of the ID entry
           System.err.println("Length match. Putting mark at " + (buf.position()) + " and moving to " + (buf.position() + ID_OFFSET) + " to check data");
           buf.mark().position (buf.position() + ID_OFFSET);
           
           byte[] chars = new byte[id.length];
           
           //Fetch the ID into the array, and reset the buffer position
           //for either returning or skipping to the next record
           buf.get(chars).reset();
           System.err.println(" id from metadata: " + new String(chars));
           
           //Compare it with the id we were passed
           if (Arrays.equals(chars, id)) {
               System.err.println("  MATCHED - position: " + buf.position());
               return buf;
           }
       }
       //Skip ahead to the next record
       buf.position(buf.position() + METAENTRY_LENGTH);
       ibuf.position(buf.position() / 4);
       System.err.println("Buffer pos: " + buf.position() + " ibuf: " + ibuf.position());
    } while (buf.position() <= buf.limit() - METAENTRY_LENGTH);
    
    return null;
}

源代码15 项目： jmonkeyengine 文件： LwjglEFX.java

@Override
public void alGenEffects(final int numEffects, final IntBuffer buffers) {
    if (buffers.position() != 0) throw new AssertionError();
    if (buffers.limit() != numEffects) throw new AssertionError();
    EXTEfx.alGenEffects(buffers);
}

源代码16 项目： jmonkeyengine 文件： LwjglEFX.java

@Override
public void alGenAuxiliaryEffectSlots(int numSlots, IntBuffer buffers) {
    if (buffers.position() != 0) throw new AssertionError();
    if (buffers.limit() != numSlots) throw new AssertionError();
    EFX10.alGenAuxiliaryEffectSlots(buffers);
}

源代码17 项目： jmonkeyengine 文件： LwjglAL.java

@Override
public void alDeleteBuffers(final int numBuffers, final IntBuffer buffers) {
    if (buffers.position() != 0) throw new AssertionError();
    if (buffers.limit() != numBuffers) throw new AssertionError();
    AL10.alDeleteBuffers(buffers);
}

源代码18 项目： jmonkeyengine 文件： LwjglEFX.java

@Override
public void alGenEffects(int numEffects, IntBuffer buffers) {
    if (buffers.position() != 0) throw new AssertionError();
    if (buffers.limit() != numEffects) throw new AssertionError();
    EFX10.alGenEffects(buffers);
}

源代码19 项目： AndroidFastImageProcessing 文件： BitmapOutput.java

@Override
	public void drawFrame() {
		if(frameBuffer == null) {
			if(getWidth() != 0 && getHeight() != 0) {
				initFBO();
			} else {
				return;
			}
		}

		GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, frameBuffer[0]);
		
		super.drawFrame();
		
		int[] pixels = new int[getWidth()*getHeight()];
		IntBuffer intBuffer = IntBuffer.wrap(pixels);
		intBuffer.position(0);
		GLES20.glReadPixels(0, 0, getWidth(), getHeight(), GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, intBuffer);

		GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
		
		for(int i = 0; i < pixels.length; i++) {
			pixels[i] = (pixels[i] & (0xFF00FF00)) | ((pixels[i] >> 16) & 0x000000FF) | ((pixels[i] << 16) & 0x00FF0000); //swap red and blue to translate back to bitmap rgb style
		}
		
		Bitmap image = Bitmap.createBitmap(pixels, getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
		callback.bitmapCreated(image);
	}

源代码20 项目： UltimateAndroid 文件： BitmapOutput.java

@Override
	public void drawFrame() {
		if(frameBuffer == null) {
			if(getWidth() != 0 && getHeight() != 0) {
				initFBO();
			} else {
				return;
			}
		}

		GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, frameBuffer[0]);
		
		super.drawFrame();
		
		int[] pixels = new int[getWidth()*getHeight()];
		IntBuffer intBuffer = IntBuffer.wrap(pixels);
		intBuffer.position(0);
		GLES20.glReadPixels(0, 0, getWidth(), getHeight(), GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, intBuffer);

		GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
		
		for(int i = 0; i < pixels.length; i++) {
			pixels[i] = (pixels[i] & (0xFF00FF00)) | ((pixels[i] >> 16) & 0x000000FF) | ((pixels[i] << 16) & 0x00FF0000); //swap red and blue to translate back to bitmap rgb style
		}
		
		Bitmap image = Bitmap.createBitmap(pixels, getWidth(), getHeight(), Bitmap.Config.ARGB_8888);
		callback.bitmapCreated(image);
	}

方法所在类

java.nio.IntBuffer