Initial commit

common/rfb/RREDecoder.cxx

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+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * 
+ * 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/InStream.h>
+#include <rdr/MemInStream.h>
+#include <rdr/OutStream.h>
+
+#include <rfb/ConnParams.h>
+#include <rfb/PixelBuffer.h>
+#include <rfb/RREDecoder.h>
+
+using namespace rfb;
+
+#define BPP 8
+#include <rfb/rreDecode.h>
+#undef BPP
+#define BPP 16
+#include <rfb/rreDecode.h>
+#undef BPP
+#define BPP 32
+#include <rfb/rreDecode.h>
+#undef BPP
+
+RREDecoder::RREDecoder() : Decoder(DecoderPlain)
+{
+}
+
+RREDecoder::~RREDecoder()
+{
+}
+
+void RREDecoder::readRect(const Rect& r, rdr::InStream* is,
+                          const ConnParams& cp, rdr::OutStream* os)
+{
+  rdr::U32 numRects;
+
+  numRects = is->readU32();
+  os->writeU32(numRects);
+
+  os->copyBytes(is, cp.pf().bpp/8 + numRects * (cp.pf().bpp/8 + 8));
+}
+
+void RREDecoder::decodeRect(const Rect& r, const void* buffer,
+                            size_t buflen, const ConnParams& cp,
+                            ModifiablePixelBuffer* pb)
+{
+  rdr::MemInStream is(buffer, buflen);
+  const PixelFormat& pf = cp.pf();
+  switch (pf.bpp) {
+  case 8:  rreDecode8 (r, &is, pf, pb); break;
+  case 16: rreDecode16(r, &is, pf, pb); break;
+  case 32: rreDecode32(r, &is, pf, pb); break;
+  }
+}