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author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
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committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /libjava/classpath/gnu/java/awt/peer/x/ZPixmapDataBuffer.java | |
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Diffstat (limited to 'libjava/classpath/gnu/java/awt/peer/x/ZPixmapDataBuffer.java')
-rw-r--r-- | libjava/classpath/gnu/java/awt/peer/x/ZPixmapDataBuffer.java | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/java/awt/peer/x/ZPixmapDataBuffer.java b/libjava/classpath/gnu/java/awt/peer/x/ZPixmapDataBuffer.java new file mode 100644 index 000000000..cf40f4d69 --- /dev/null +++ b/libjava/classpath/gnu/java/awt/peer/x/ZPixmapDataBuffer.java @@ -0,0 +1,67 @@ +package gnu.java.awt.peer.x; + +import gnu.x11.Display; +import gnu.x11.image.ZPixmap; + +import java.awt.GraphicsEnvironment; +import java.awt.image.DataBuffer; + +/** + * A DataBuffer implementation that is based on a ZPixmap. This is used + * as backing store for BufferedImages. + */ +class ZPixmapDataBuffer + extends DataBuffer +{ + + /** + * The backing ZPixmap. + */ + private ZPixmap zpixmap; + + /** + * Creates a new ZPixmapDataBuffer with a specified width and height. + * + * @param d the X display + * @param w the width + * @param h the height + */ + ZPixmapDataBuffer(int w, int h) + { + super(TYPE_BYTE, w * h * 3); // TODO: Support non-24-bit-resolutions. + GraphicsEnvironment env = + GraphicsEnvironment.getLocalGraphicsEnvironment(); + XGraphicsDevice dev = (XGraphicsDevice) env.getDefaultScreenDevice(); + Display d = dev.getDisplay(); + zpixmap = new ZPixmap(d, w, h, d.default_pixmap_format); + } + + /** + * Creates a ZPixmapDataBuffer from an existing ZPixmap. + * + * @param zpixmap the ZPixmap to wrap + */ + ZPixmapDataBuffer(ZPixmap zpixmap) + { + super(TYPE_BYTE, zpixmap.get_data_length()); + this.zpixmap = zpixmap; + } + + @Override + public int getElem(int bank, int i) + { + return 0xff & zpixmap.get_data_element(i); + } + + @Override + public void setElem(int bank, int i, int val) + { + zpixmap.set_data_element(i, (byte) val); + } + + ZPixmap getZPixmap() + { + return zpixmap; + } + +} |