[libbluray-devel] BDGraphics: implement copyArea()

[Ian Curtis]

libbluray | branch: master | Ian Curtis <i.curtis at gmail.com> | Wed Mar 19 16:19:05 2014 +0200| [b56992a204de1605c2a7b986845dd0142dc43a16] | committer: hpi1

BDGraphics: implement copyArea()

> http://git.videolan.org/gitweb.cgi/libbluray.git/?a=commit;h=b56992a204de1605c2a7b986845dd0142dc43a16
---

 .../bdj/java-j2me/java/awt/BDGraphics.java         |   32 +++++++++++++++++---
 .../bdj/java-j2se/java/awt/BDGraphics.java         |   32 +++++++++++++++++---
 2 files changed, 56 insertions(+), 8 deletions(-)

diff --git a/src/libbluray/bdj/java-j2me/java/awt/BDGraphics.java b/src/libbluray/bdj/java-j2me/java/awt/BDGraphics.java
index c29a6f0..a3e47a0 100644
--- a/src/libbluray/bdj/java-j2me/java/awt/BDGraphics.java
+++ b/src/libbluray/bdj/java-j2me/java/awt/BDGraphics.java
@@ -519,10 +519,34 @@ class BDGraphics extends Graphics2D implements ConstrainableGraphics {
      * @param dx the horizontal distance to copy the pixels.
      * @param dy the vertical distance to copy the pixels.
      */
-    public void copyArea(int X, int Y, int W, int H, int dx, int dy) {
-        X += originX;
-        Y += originY;
-        logger.unimplemented("copyArea");
+    public void copyArea(int x, int y, int w, int h, int dx, int dy) {
+
+        x += originX;
+        y += originY;
+
+        Rectangle rect = new Rectangle(x, y, w, h);
+        rect = actualClip.intersection(rect);
+
+        if (rect.width <= 0 || rect.height <= 0) {
+            return;
+        }
+
+        x = rect.x;
+        y = rect.y;
+        w = rect.width;
+        h = rect.height;
+
+        int subImage[] = new int[w * h];
+
+        // copy back buffer
+        for (int i = 0; i < h; i++) {
+            System.arraycopy(backBuffer, ((y + i) * width) + x, subImage, w * i, w);
+        }
+
+        // draw sub image
+        for (int i = 0; i < h; i++) {
+            drawSpanN(x + dx, y + i + dy, w, subImage, w * i);
+        }
     }
 
     /** Draws lines defined by an array of x points and y points */
diff --git a/src/libbluray/bdj/java-j2se/java/awt/BDGraphics.java b/src/libbluray/bdj/java-j2se/java/awt/BDGraphics.java
index 6a841f2..1d7d747 100644
--- a/src/libbluray/bdj/java-j2se/java/awt/BDGraphics.java
+++ b/src/libbluray/bdj/java-j2se/java/awt/BDGraphics.java
@@ -601,10 +601,34 @@ class BDGraphics extends Graphics2D implements ConstrainableGraphics {
      * @param dx the horizontal distance to copy the pixels.
      * @param dy the vertical distance to copy the pixels.
      */
-    public void copyArea(int X, int Y, int W, int H, int dx, int dy) {
-        X += originX;
-        Y += originY;
-        logger.unimplemented("copyArea");
+    public void copyArea(int x, int y, int w, int h, int dx, int dy) {
+
+        x += originX;
+        y += originY;
+
+        Rectangle rect = new Rectangle(x, y, w, h);
+        rect = actualClip.intersection(rect);
+
+        if (rect.width <= 0 || rect.height <= 0) {
+            return;
+        }
+
+        x = rect.x;
+        y = rect.y;
+        w = rect.width;
+        h = rect.height;
+
+        int subImage[] = new int[w * h];
+
+        // copy back buffer
+        for (int i = 0; i < h; i++) {
+            System.arraycopy(backBuffer, ((y + i) * width) + x, subImage, w * i, w);
+        }
+
+        // draw sub image
+        for (int i = 0; i < h; i++) {
+            drawSpanN(x + dx, y + i + dy, w, subImage, w * i);
+        }
     }
 
     /** Draws lines defined by an array of x points and y points */