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src/java.desktop/share/classes/sun/awt/image/DataBufferNative.java

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  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 
  27 package sun.awt.image;
  28 
  29 import java.awt.image.DataBuffer;
  30 import sun.java2d.SurfaceData;
  31 import java.awt.Rectangle;
  32 
  33 /**
  34  * This class extends <CODE>DataBuffer</CODE> and allows access to
  35  * native data via the DataBuffer methods.  Note that, unlike other
  36  * DataBuffer classes, the data is not stored in this class but
  37  * has been created and stored elsewhere and this class is used
  38  * merely to access that data.  Note also that this class subclasses
  39  * from DataBuffer and not from any of the standard subclasses
  40  * (e.g., DataBufferInt); those subclasses allow the user to
  41  * get a pointer to the data and manipulate it directly.  That
  42  * operation may not be possible or wise with native data.
  43  * One important use of this DataBuffer class is in accessing the
  44  * data stored in an offscreen vram surface, such as that created
  45  * by the createVolatileImage() method.
  46  */
  47 
  48 public class DataBufferNative extends DataBuffer
  49 {
  50     protected SurfaceData surfaceData;
  51     protected int width;
  52 
  53     /**
  54      * Constructor.  The constructor of this object requires a




  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 
  27 package sun.awt.image;
  28 
  29 import java.awt.image.DataBuffer;
  30 import sun.java2d.SurfaceData;
  31 import java.awt.Rectangle;
  32 
  33 /**
  34  * This class extends {@code DataBuffer} and allows access to
  35  * native data via the DataBuffer methods.  Note that, unlike other
  36  * DataBuffer classes, the data is not stored in this class but
  37  * has been created and stored elsewhere and this class is used
  38  * merely to access that data.  Note also that this class subclasses
  39  * from DataBuffer and not from any of the standard subclasses
  40  * (e.g., DataBufferInt); those subclasses allow the user to
  41  * get a pointer to the data and manipulate it directly.  That
  42  * operation may not be possible or wise with native data.
  43  * One important use of this DataBuffer class is in accessing the
  44  * data stored in an offscreen vram surface, such as that created
  45  * by the createVolatileImage() method.
  46  */
  47 
  48 public class DataBufferNative extends DataBuffer
  49 {
  50     protected SurfaceData surfaceData;
  51     protected int width;
  52 
  53     /**
  54      * Constructor.  The constructor of this object requires a


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