8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
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.pipe;
27
28 import sun.misc.Unsafe;
29
30
31 /**
32 * The RenderBuffer class is a simplified, high-performance, Unsafe wrapper
33 * used for buffering rendering operations in a single-threaded rendering
34 * environment. It's functionality is similar to the ByteBuffer and related
35 * NIO classes. However, the methods in this class perform little to no
36 * alignment or bounds checks for performance reasons. Therefore, it is
37 * the caller's responsibility to ensure that all put() calls are properly
38 * aligned and within bounds:
39 * - int and float values must be aligned on 4-byte boundaries
40 * - long and double values must be aligned on 8-byte boundaries
41 *
42 * This class only includes the bare minimum of methods to support
43 * single-threaded rendering. For example, there is no put(double[]) method
44 * because we currently have no need for such a method in the STR classes.
45 */
46 public class RenderBuffer {
47
48 /**
|
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
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.pipe;
27
28 import jdk.internal.misc.Unsafe;
29
30
31 /**
32 * The RenderBuffer class is a simplified, high-performance, Unsafe wrapper
33 * used for buffering rendering operations in a single-threaded rendering
34 * environment. It's functionality is similar to the ByteBuffer and related
35 * NIO classes. However, the methods in this class perform little to no
36 * alignment or bounds checks for performance reasons. Therefore, it is
37 * the caller's responsibility to ensure that all put() calls are properly
38 * aligned and within bounds:
39 * - int and float values must be aligned on 4-byte boundaries
40 * - long and double values must be aligned on 8-byte boundaries
41 *
42 * This class only includes the bare minimum of methods to support
43 * single-threaded rendering. For example, there is no put(double[]) method
44 * because we currently have no need for such a method in the STR classes.
45 */
46 public class RenderBuffer {
47
48 /**
|