17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.java2d.xr;
27
28 /**
29 * Class provides unused XIDs, used for creating server-side objects
30 * created by the java backend.
31 * It does buffering, to minimize JNI overhead.
32 *
33 * @author Clemens Eisserer
34 */
35
36 public class XIDGenerator {
37 private final static int XID_BUFFER_SIZE = 512;
38
39 int[] xidBuffer = new int[XID_BUFFER_SIZE];
40 int currentIndex = XID_BUFFER_SIZE;
41
42 public int getNextXID() {
43
44 if (currentIndex >= XID_BUFFER_SIZE) {
45 bufferXIDs(xidBuffer, xidBuffer.length);
46 currentIndex = 0;
47 }
48
49 return xidBuffer[currentIndex++];
50 }
51
52 private static native void bufferXIDs(int[] buffer, int arraySize);
53 }
|
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.java2d.xr;
27
28 /**
29 * Class provides unused XIDs, used for creating server-side objects
30 * created by the java backend.
31 * It does buffering, to minimize JNI overhead.
32 *
33 * @author Clemens Eisserer
34 */
35
36 public class XIDGenerator {
37 private static final int XID_BUFFER_SIZE = 512;
38
39 int[] xidBuffer = new int[XID_BUFFER_SIZE];
40 int currentIndex = XID_BUFFER_SIZE;
41
42 public int getNextXID() {
43
44 if (currentIndex >= XID_BUFFER_SIZE) {
45 bufferXIDs(xidBuffer, xidBuffer.length);
46 currentIndex = 0;
47 }
48
49 return xidBuffer[currentIndex++];
50 }
51
52 private static native void bufferXIDs(int[] buffer, int arraySize);
53 }
|