AfflictionNetworks/narya
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We can't merge dirty rectangles for each dirty item when rendering

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into a single rectangle, since doing so may cause new areas to be
dirtied that impact portions of other sprites or objects that won't
get properly redrawn.  Sigh.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@550 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Walter Korman
2001-10-24 01:33:47 +00:00
parent 000463f491
commit 092d96509e
1 changed files with 4 additions and 30 deletions
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src/java/com/threerings/miso/client/IsoSceneView.java
+4 -30
View File
@@ -1,5 +1,5 @@
//
// $Id: IsoSceneView.java,v 1.67 2001/10/24 00:55:08 shaper Exp $
// $Id: IsoSceneView.java,v 1.68 2001/10/24 01:33:47 shaper Exp $
package com.threerings.miso.scene;
@@ -72,7 +72,7 @@ public class IsoSceneView implements SceneView
public void paint (Graphics g)
{
if (_scene == null) {
Log.info("Scene view painted with null scene.");
Log.warning("Scene view painted with null scene.");
return;
}
@@ -241,35 +241,9 @@ public class IsoSceneView implements SceneView
// sort the dirty sprites and objects visually back-to-front
DirtyItem items[] = _dirtyItems.sort();
// merge all dirty rectangles for each item into a single
// rectangle before painting
Rectangle dirtyRect = new Rectangle();
DirtyItem cur = null, last = null;
// render each item clipping to its dirty rectangle
for (int ii = 0; ii < items.length; ii++) {
cur = items[ii];
if (last == null || !cur.equals(last)) {
if (last != null) {
// paint the item with its full dirty rectangle
// Log.info("Painting dirty item [item=" + last + "].");
last.paint(gfx, dirtyRect);
}
// update the current dirty item
last = cur;
dirtyRect.setBounds(cur.dirtyRect);
} else {
// expand the item's dirty rectangle
dirtyRect.add(cur.dirtyRect);
}
}
if (cur != null) {
// paint the final dirty item
cur.paint(gfx, dirtyRect);
// Log.info("Painting dirty item [item=" + cur + "].");
items[ii].paint(gfx, items[ii].dirtyRect);
}
}