commit e89d47fb19a0a0438b2b038f0e7ab005d72a9be2
author george82 <george82@3789f03b-4d11-0410-bbf8-ca57d06f2519> Sat May 27 12:31:08 2006 +0000
committer george82 <george82@3789f03b-4d11-0410-bbf8-ca57d06f2519> Sat May 27 12:31:08 2006 +0000
tree 329746a198cacea1030814e13e3e29a0e387b874
parent c0d28b28d274450dce19a38e6c5ca4bb7a3044f0

ScaledDIBSectionBuffer class improvements:
Copy the pixel data from source buffer to scale buffer 
if scale was changed to 100 percent and copy the pixel data
from scaled buffer to source buffer if scale was changed 
from 100 percent. It allow refresh the Desktop Window 
without sending FramebufferUpdateRequest message and
decrease the network traffic.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@597 3789f03b-4d11-0410-bbf8-ca57d06f2519

win/rfb_win32/ScaledDIBSectionBuffer.cxx

diff --git a/win/rfb_win32/ScaledDIBSectionBuffer.cxx b/win/rfb_win32/ScaledDIBSectionBuffer.cxx
index bd6b4d3..be921f9 100644
--- a/win/rfb_win32/ScaledDIBSectionBuffer.cxx
+++ b/win/rfb_win32/ScaledDIBSectionBuffer.cxx
@@ -45,15 +45,23 @@
     if (!src_buffer) {
       src_buffer = new ManagedPixelBuffer(format, src_width, src_height);
       src_data = &(src_buffer->data);
+      memcpy(src_buffer->data, data, area() * (getPF().bpp/8));
     }
   } else {
     scaling = false;
-    if (src_buffer) delete src_buffer;
-    src_buffer = 0;
-    src_data = 0;
   }
   ScaledPixelBuffer::setScale(scale_);
   recreateScaledBuffer();
+  if (scaling) {
+    scaleRect(Rect(0, 0, src_width, src_height));
+  } else {
+    memcpy(data, src_buffer->data, src_buffer->area() * (src_buffer->getPF().bpp/8));
+    if (src_buffer) {
+      delete src_buffer;
+      src_buffer = 0;
+      src_data = 0;
+    }
+  }
 }
 
 void ScaledDIBSectionBuffer::setPF(const PixelFormat &pf_) {