From 479b18cd1a372eb4e36e737ee43f8fcedba5013e Mon Sep 17 00:00:00 2001
From: enikey <enikey@3789f03b-4d11-0410-bbf8-ca57d06f2519>
Date: Fri, 19 Dec 2008 09:39:40 +0000
Subject: [PATCH] [Refactoring] All methods and members that were used by old
 tight decode code block is removed. VncCanvas is no more overrides
 imageUpdate method of ImageObserver interface.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3438 3789f03b-4d11-0410-bbf8-ca57d06f2519
---
 .../src/com/tightvnc/vncviewer/VncCanvas.java | 129 +-----------------
 1 file changed, 1 insertion(+), 128 deletions(-)

diff --git a/java/src/com/tightvnc/vncviewer/VncCanvas.java b/java/src/com/tightvnc/vncviewer/VncCanvas.java
index 4aa8d0ab..8f450c77 100644
--- a/java/src/com/tightvnc/vncviewer/VncCanvas.java
+++ b/java/src/com/tightvnc/vncviewer/VncCanvas.java
@@ -108,16 +108,6 @@ class VncCanvas extends Canvas
   int zlibBufLen = 0;
   Inflater zlibInflater;
 
-  // Tight encoder's data.
-  final static int tightZlibBufferSize = 512;
-  Inflater[] tightInflaters;
-
-  // Since JPEG images are loaded asynchronously, we have to remember
-  // their position in the framebuffer. Also, this jpegRect object is
-  // used for synchronization between the rfbThread and a JVM's thread
-  // which decodes and loads JPEG images.
-  Rectangle jpegRect;
-
   // True if we process keyboard and mouse events.
   boolean inputEnabled;
 
@@ -135,8 +125,6 @@ class VncCanvas extends Canvas
     rfb = viewer.rfb;
     scalingFactor = viewer.options.scalingFactor;
 
-    tightInflaters = new Inflater[4];
-
     cm8 = new DirectColorModel(8, 7, (7 << 3), (3 << 6));
     cm24 = new DirectColorModel(24, 0xFF0000, 0x00FF00, 0x0000FF);
 
@@ -261,31 +249,6 @@ class VncCanvas extends Canvas
     g.drawImage(memImage, 0, 0, scaledWidth, scaledHeight, null);
   }
 
-  //
-  // Override the ImageObserver interface method to handle drawing of
-  // JPEG-encoded data.
-  //
-
-  public boolean imageUpdate(Image img, int infoflags,
-                             int x, int y, int width, int height) {
-    if ((infoflags & (ALLBITS | ABORT)) == 0) {
-      return true;		// We need more image data.
-    } else {
-      // If the whole image is available, draw it now.
-      if ((infoflags & ALLBITS) != 0) {
-	if (jpegRect != null) {
-	  synchronized(jpegRect) {
-	    memGraphics.drawImage(img, jpegRect.x, jpegRect.y, null);
-	    scheduleRepaint(jpegRect.x, jpegRect.y,
-			    jpegRect.width, jpegRect.height);
-	    jpegRect.notify();
-	  }
-	}
-      }
-      return false;		// All image data was processed.
-    }
-  }
-
   //
   // Start/stop receiving mouse events. Keyboard events are received
   // even in view-only mode, because we want to map the 'r' key to the
@@ -605,7 +568,7 @@ class VncCanvas extends Canvas
 	    break;
 	  case RfbProto.EncodingTight:
             if (tightDecoder != null) {
-	      statNumRectsTight = tightDecoder.getNumJPEGRects();
+	      statNumRectsTightJPEG = tightDecoder.getNumJPEGRects();
             }
 	    handleTightRect(rx, ry, rw, rh);
 	    break;
@@ -1316,96 +1279,6 @@ class VncCanvas extends Canvas
     scheduleRepaint(x, y, w, h);
   }
 
-  //
-  // Decode 1bpp-encoded bi-color rectangle (8-bit and 24-bit versions).
-  //
-
-  void decodeMonoData(int x, int y, int w, int h, byte[] src, byte[] palette) {
-
-    int dx, dy, n;
-    int i = y * rfb.framebufferWidth + x;
-    int rowBytes = (w + 7) / 8;
-    byte b;
-
-    for (dy = 0; dy < h; dy++) {
-      for (dx = 0; dx < w / 8; dx++) {
-	b = src[dy*rowBytes+dx];
-	for (n = 7; n >= 0; n--)
-	  pixels8[i++] = palette[b >> n & 1];
-      }
-      for (n = 7; n >= 8 - w % 8; n--) {
-	pixels8[i++] = palette[src[dy*rowBytes+dx] >> n & 1];
-      }
-      i += (rfb.framebufferWidth - w);
-    }
-  }
-
-  void decodeMonoData(int x, int y, int w, int h, byte[] src, int[] palette) {
-
-    int dx, dy, n;
-    int i = y * rfb.framebufferWidth + x;
-    int rowBytes = (w + 7) / 8;
-    byte b;
-
-    for (dy = 0; dy < h; dy++) {
-      for (dx = 0; dx < w / 8; dx++) {
-	b = src[dy*rowBytes+dx];
-	for (n = 7; n >= 0; n--)
-	  pixels24[i++] = palette[b >> n & 1];
-      }
-      for (n = 7; n >= 8 - w % 8; n--) {
-	pixels24[i++] = palette[src[dy*rowBytes+dx] >> n & 1];
-      }
-      i += (rfb.framebufferWidth - w);
-    }
-  }
-
-  //
-  // Decode data processed with the "Gradient" filter.
-  //
-
-  void decodeGradientData (int x, int y, int w, int h, byte[] buf) {
-
-    int dx, dy, c;
-    byte[] prevRow = new byte[w * 3];
-    byte[] thisRow = new byte[w * 3];
-    byte[] pix = new byte[3];
-    int[] est = new int[3];
-
-    int offset = y * rfb.framebufferWidth + x;
-
-    for (dy = 0; dy < h; dy++) {
-
-      /* First pixel in a row */
-      for (c = 0; c < 3; c++) {
-	pix[c] = (byte)(prevRow[c] + buf[dy * w * 3 + c]);
-	thisRow[c] = pix[c];
-      }
-      pixels24[offset++] =
-	(pix[0] & 0xFF) << 16 | (pix[1] & 0xFF) << 8 | (pix[2] & 0xFF);
-
-      /* Remaining pixels of a row */
-      for (dx = 1; dx < w; dx++) {
-	for (c = 0; c < 3; c++) {
-	  est[c] = ((prevRow[dx * 3 + c] & 0xFF) + (pix[c] & 0xFF) -
-		    (prevRow[(dx-1) * 3 + c] & 0xFF));
-	  if (est[c] > 0xFF) {
-	    est[c] = 0xFF;
-	  } else if (est[c] < 0x00) {
-	    est[c] = 0x00;
-	  }
-	  pix[c] = (byte)(est[c] + buf[(dy * w + dx) * 3 + c]);
-	  thisRow[dx * 3 + c] = pix[c];
-	}
-	pixels24[offset++] =
-	  (pix[0] & 0xFF) << 16 | (pix[1] & 0xFF) << 8 | (pix[2] & 0xFF);
-      }
-
-      System.arraycopy(thisRow, 0, prevRow, 0, w * 3);
-      offset += (rfb.framebufferWidth - w);
-    }
-  }
-
   //
   // Display newly updated area of pixels.
   //
-- 
2.39.5