Initial commit

common/rfb/CopyRectDecoder.cxx

@@ -0,0 +1,65 @@
+/* Copyright 2014 Pierre Ossman <ossman@cendio.se> for Cendio AB
+ * 
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+#include <rdr/MemInStream.h>
+#include <rdr/OutStream.h>
+#include <rfb/PixelBuffer.h>
+#include <rfb/Region.h>
+#include <rfb/CopyRectDecoder.h>
+
+using namespace rfb;
+
+CopyRectDecoder::CopyRectDecoder() : Decoder(DecoderPlain)
+{
+}
+
+CopyRectDecoder::~CopyRectDecoder()
+{
+}
+
+void CopyRectDecoder::readRect(const Rect& r, rdr::InStream* is,
+                               const ConnParams& cp, rdr::OutStream* os)
+{
+  os->copyBytes(is, 4);
+}
+
+
+void CopyRectDecoder::getAffectedRegion(const Rect& rect,
+                                        const void* buffer,
+                                        size_t buflen,
+                                        const ConnParams& cp,
+                                        Region* region)
+{
+  rdr::MemInStream is(buffer, buflen);
+  int srcX = is.readU16();
+  int srcY = is.readU16();
+
+  Decoder::getAffectedRegion(rect, buffer, buflen, cp, region);
+
+  region->assign_union(Region(rect.translate(Point(srcX-rect.tl.x,
+                                                   srcY-rect.tl.y))));
+}
+
+void CopyRectDecoder::decodeRect(const Rect& r, const void* buffer,
+                                 size_t buflen, const ConnParams& cp,
+                                 ModifiablePixelBuffer* pb)
+{
+  rdr::MemInStream is(buffer, buflen);
+  int srcX = is.readU16();
+  int srcY = is.readU16();
+  pb->copyRect(r, Point(r.tl.x-srcX, r.tl.y-srcY));
+}