Initial commit

common/rfb/Encoder.cxx

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+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * Copyright 2014 Pierre Ossman 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 <rfb/Encoder.h>
+#include <rfb/PixelBuffer.h>
+#include <rfb/Palette.h>
+
+using namespace rfb;
+
+Encoder::Encoder(SConnection *conn_, int encoding_,
+                 enum EncoderFlags flags_, unsigned int maxPaletteSize_) :
+  encoding(encoding_), flags(flags_),
+  maxPaletteSize(maxPaletteSize_), conn(conn_)
+{
+}
+
+Encoder::~Encoder()
+{
+}
+
+void Encoder::writeSolidRect(int width, int height,
+                             const PixelFormat& pf, const rdr::U8* colour)
+{
+  ManagedPixelBuffer buffer(pf, width, height);
+
+  Palette palette;
+  rdr::U32 palcol;
+
+  buffer.fillRect(buffer.getRect(), colour);
+
+  palcol = 0;
+  memcpy(&palcol, colour, pf.bpp/8);
+  palette.insert(palcol, 1);
+
+  writeRect(&buffer, palette);
+}
+
+void Encoder::writeSolidRect(const PixelBuffer* pb, const Palette& palette)
+{
+  rdr::U32 col32;
+  rdr::U16 col16;
+  rdr::U8 col8;
+
+  rdr::U8* buffer;
+
+  assert(palette.size() == 1);
+
+  // The Palette relies on implicit up and down conversion
+  switch (pb->getPF().bpp) {
+  case 32:
+    col32 = (rdr::U32)palette.getColour(0);
+    buffer = (rdr::U8*)&col32;
+    break;
+  case 16:
+    col16 = (rdr::U16)palette.getColour(0);
+    buffer = (rdr::U8*)&col16;
+    break;
+  default:
+    col8 = (rdr::U8)palette.getColour(0);
+    buffer = (rdr::U8*)&col8;
+    break;
+  }
+
+  writeSolidRect(pb->width(), pb->height(), pb->getPF(), buffer);
+}