feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/javax/sound/sampled/SourceDataLine.java

@@ -0,0 +1,203 @@
+/*
+ * Copyright (c) 1999, 2003, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package javax.sound.sampled;
+
+
+/**
+ * A source data line is a data line to which data may be written.  It acts as
+ * a source to its mixer. An application writes audio bytes to a source data line,
+ * which handles the buffering of the bytes and delivers them to the mixer.
+ * The mixer may mix the samples with those from other sources and then deliver
+ * the mix to a target such as an output port (which may represent an audio output
+ * device on a sound card).
+ * <p>
+ * Note that the naming convention for this interface reflects the relationship
+ * between the line and its mixer.  From the perspective of an application,
+ * a source data line may act as a target for audio data.
+ * <p>
+ * A source data line can be obtained from a mixer by invoking the
+ * <code>{@link Mixer#getLine getLine}</code> method of <code>Mixer</code> with
+ * an appropriate <code>{@link DataLine.Info}</code> object.
+ * <p>
+ * The <code>SourceDataLine</code> interface provides a method for writing
+ * audio data to the data line's buffer. Applications that play or mix
+ * audio should write data to the source data line quickly enough to keep the
+ * buffer from underflowing (emptying), which could cause discontinuities in
+ * the audio that are perceived as clicks.  Applications can use the
+ * <code>{@link DataLine#available available}</code> method defined in the
+ * <code>DataLine</code> interface to determine the amount of data currently
+ * queued in the data line's buffer.  The amount of data which can be written
+ * to the buffer without blocking is the difference between the buffer size
+ * and the amount of queued data.  If the delivery of audio output
+ * stops due to underflow, a <code>{@link LineEvent.Type#STOP STOP}</code> event is
+ * generated.  A <code>{@link LineEvent.Type#START START}</code> event is generated
+ * when the audio output resumes.
+ *
+ * @author Kara Kytle
+ * @see Mixer
+ * @see DataLine
+ * @see TargetDataLine
+ * @since 1.3
+ */
+public interface SourceDataLine extends DataLine {
+
+
+    /**
+     * Opens the line with the specified format and suggested buffer size,
+     * causing the line to acquire any required
+     * system resources and become operational.
+     * <p>
+     * The buffer size is specified in bytes, but must represent an integral
+     * number of sample frames.  Invoking this method with a requested buffer
+     * size that does not meet this requirement may result in an
+     * IllegalArgumentException.  The actual buffer size for the open line may
+     * differ from the requested buffer size.  The value actually set may be
+     * queried by subsequently calling <code>{@link DataLine#getBufferSize}</code>.
+     * <p>
+     * If this operation succeeds, the line is marked as open, and an
+     * <code>{@link LineEvent.Type#OPEN OPEN}</code> event is dispatched to the
+     * line's listeners.
+     * <p>
+     * Invoking this method on a line which is already open is illegal
+     * and may result in an <code>IllegalStateException</code>.
+     * <p>
+     * Note that some lines, once closed, cannot be reopened.  Attempts
+     * to reopen such a line will always result in a
+     * <code>LineUnavailableException</code>.
+     *
+     * @param format the desired audio format
+     * @param bufferSize the desired buffer size
+     * @throws LineUnavailableException if the line cannot be
+     * opened due to resource restrictions
+     * @throws IllegalArgumentException if the buffer size does not represent
+     * an integral number of sample frames,
+     * or if <code>format</code> is not fully specified or invalid
+     * @throws IllegalStateException if the line is already open
+     * @throws SecurityException if the line cannot be
+     * opened due to security restrictions
+     *
+     * @see #open(AudioFormat)
+     * @see Line#open
+     * @see Line#close
+     * @see Line#isOpen
+     * @see LineEvent
+     */
+    public void open(AudioFormat format, int bufferSize) throws LineUnavailableException;
+
+
+    /**
+     * Opens the line with the specified format, causing the line to acquire any
+     * required system resources and become operational.
+     *
+     * <p>
+     * The implementation chooses a buffer size, which is measured in bytes but
+     * which encompasses an integral number of sample frames.  The buffer size
+     * that the system has chosen may be queried by subsequently calling
+     * <code>{@link DataLine#getBufferSize}</code>.
+     * <p>
+     * If this operation succeeds, the line is marked as open, and an
+     * <code>{@link LineEvent.Type#OPEN OPEN}</code> event is dispatched to the
+     * line's listeners.
+     * <p>
+     * Invoking this method on a line which is already open is illegal
+     * and may result in an <code>IllegalStateException</code>.
+     * <p>
+     * Note that some lines, once closed, cannot be reopened.  Attempts
+     * to reopen such a line will always result in a
+     * <code>LineUnavailableException</code>.
+     *
+     * @param format the desired audio format
+     * @throws LineUnavailableException if the line cannot be
+     * opened due to resource restrictions
+     * @throws IllegalArgumentException if <code>format</code>
+     * is not fully specified or invalid
+     * @throws IllegalStateException if the line is already open
+     * @throws SecurityException if the line cannot be
+     * opened due to security restrictions
+     *
+     * @see #open(AudioFormat, int)
+     * @see Line#open
+     * @see Line#close
+     * @see Line#isOpen
+     * @see LineEvent
+     */
+    public void open(AudioFormat format) throws LineUnavailableException;
+
+
+    /**
+     * Writes audio data to the mixer via this source data line.  The requested
+     * number of bytes of data are read from the specified array,
+     * starting at the given offset into the array, and written to the data
+     * line's buffer.  If the caller attempts to write more data than can
+     * currently be written (see <code>{@link DataLine#available available}</code>),
+     * this method blocks until the requested amount of data has been written.
+     * This applies even if the requested amount of data to write is greater
+     * than the data line's buffer size.  However, if the data line is closed,
+     * stopped, or flushed before the requested amount has been written,
+     * the method no longer blocks, but returns the number of bytes
+     * written thus far.
+     * <p>
+     * The number of bytes that can be written without blocking can be ascertained
+     * using the <code>{@link DataLine#available available}</code> method of the
+     * <code>DataLine</code> interface.  (While it is guaranteed that
+     * this number of bytes can be written without blocking, there is no guarantee
+     * that attempts to write additional data will block.)
+     * <p>
+     * The number of bytes to write must represent an integral number of
+     * sample frames, such that:
+     * <br>
+     * <center><code>[ bytes written ] % [frame size in bytes ] == 0</code></center>
+     * <br>
+     * The return value will always meet this requirement.  A request to write a
+     * number of bytes representing a non-integral number of sample frames cannot
+     * be fulfilled and may result in an <code>IllegalArgumentException</code>.
+     *
+     * @param b a byte array containing data to be written to the data line
+     * @param len the length, in bytes, of the valid data in the array
+     * (in other words, the requested amount of data to write, in bytes)
+     * @param off the offset from the beginning of the array, in bytes
+     * @return the number of bytes actually written
+     * @throws IllegalArgumentException if the requested number of bytes does
+     * not represent an integral number of sample frames,
+     * or if <code>len</code> is negative
+     * @throws ArrayIndexOutOfBoundsException if <code>off</code> is negative,
+     * or <code>off+len</code> is greater than the length of the array
+     * <code>b</code>.
+     *
+     * @see TargetDataLine#read
+     * @see DataLine#available
+     */
+    public int write(byte[] b, int off, int len);
+
+    /**
+     * Obtains the number of sample frames of audio data that can be written to
+     * the mixer, via this data line, without blocking.  Note that the return
+     * value measures sample frames, not bytes.
+     * @return the number of sample frames currently available for writing
+     * @see TargetDataLine#availableRead
+     */
+    //public int availableWrite();
+}