Examples of java.nio.Buffer.rewind()

java.nio.Buffer.rewind()
Rewinds this buffer.
The position is set to zero, and the mark is cleared.

The content of this buffer is not changed.
@return This buffer

    buf = factory.newInstance();
    buf.position(5);
    buf.mark();
    buf.position(6);
    buf.limit(9);
    h.check(buf.rewind(), buf, "rewind: buf.rewind()");
    checkStatus(h, buf, "rewind", 10, 9, true, 9, 0);
    try
      {
        buf.reset();
        h.check(false, "rewind: mark not invalidated");

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    buf = factory.newInstance();
    buf.position(5);
    buf.mark();
    buf.position(6);
    buf.limit(9);
    h.check(buf.rewind(), buf, "rewind: buf.rewind()");
    checkStatus(h, buf, "rewind", 20, 9, true, 9, 0);
    try
      {
        buf.reset();
        h.check(false, "rewind: mark not invalidated");

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        }


        final Buffer dataBuffer = data.getBuffer();
        if (dataBuffer != null) {
            // XXX: should we be rewinding? Maybe make that the programmer's responsibility.
            dataBuffer.rewind();
            vboID = makeVBOId();
            data.setVBOID(context.getGlContextRep(), vboID);


            rendRecord.invalidateVBO();
            LwjglRendererUtil.setBoundVBO(rendRecord, vboID);

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    public static void updateVBO(final AbstractBufferData<? extends Buffer> data, final RendererRecord rendRecord,
            final int vboID, final int offsetBytes) {
        if (data.isNeedsRefresh()) {
            final Buffer dataBuffer = data.getBuffer();
            dataBuffer.rewind();
            LwjglRendererUtil.setBoundVBO(rendRecord, vboID);
            if (dataBuffer instanceof FloatBuffer) {
                ARBBufferObject.glBufferSubDataARB(ARBVertexBufferObject.GL_ARRAY_BUFFER_ARB, offsetBytes,
                        (FloatBuffer) dataBuffer);
            } else if (dataBuffer instanceof ByteBuffer) {

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        int vboID = data.getVBOID(context.getGlContextRep());
        if (vboID != 0) {
            if (data.isNeedsRefresh()) {
                final Buffer dataBuffer = data.getBuffer();
                dataBuffer.rewind();
                LwjglRendererUtil.setBoundElementVBO(rendRecord, vboID);
                if (dataBuffer instanceof IntBuffer) {
                    ARBBufferObject.glBufferSubDataARB(ARBVertexBufferObject.GL_ELEMENT_ARRAY_BUFFER_ARB, 0,
                            (IntBuffer) dataBuffer);
                } else if (dataBuffer instanceof ShortBuffer) {

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        }


        final Buffer dataBuffer = data.getBuffer();
        if (dataBuffer != null) {
            // XXX: should we be rewinding? Maybe make that the programmer's responsibility.
            dataBuffer.rewind();
            vboID = makeVBOId();
            data.setVBOID(context.getGlContextRep(), vboID);


            rendRecord.invalidateVBO();
            LwjglRendererUtil.setBoundElementVBO(rendRecord, vboID);

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            default:
                // We should never get here
                throw new AssertionError("missing case statement");
        }


        return tmpBuffer.rewind();
    }




    // Sanity check the input parameters, calculate the buffer type and
    // the number of bytes per pixel

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        // NOTE: Use data from interleaved buffer if specified
        Buffer data = idb != null ? idb.getData() : vb.getData();
        int comps = vb.getNumComponents();
        int type = convertVertexFormat(vb.getFormat());


        data.rewind();


        switch (vb.getBufferType()) {
            case Position:
                if (!(data instanceof FloatBuffer)) {
                    throw new UnsupportedOperationException();

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    public void drawTriangleList(VertexBuffer indexBuf, Mesh mesh, int count) {
        Mesh.Mode mode = mesh.getMode();


        Buffer indexData = indexBuf.getData();
        indexData.rewind();


        if (mesh.getMode() == Mode.Hybrid) {
            throw new UnsupportedOperationException();
            /*
            int[] modeStart = mesh.getModeStart();

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    private void gatherIndexData(Mesh mesh, List<Vertex> vertexLookup) {
        VertexBuffer indexBuffer = mesh.getBuffer(VertexBuffer.Type.Index);
        indexCount = indexBuffer.getNumElements() * 3;
        Buffer b = indexBuffer.getDataReadOnly();
        b.rewind();
        
        while (b.remaining() != 0) {
            Triangle tri = new Triangle();
            tri.isRemoved = false;
            triangleList.add(tri);

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