Initial commit

2020-09-20 12:16:44 +00:00
parent 09a4460ddb
commit 408c005d3e
839 changed files with 190481 additions and 0 deletions
--- a/common/rfb/RREEncoder.cxx
+++ b/common/rfb/RREEncoder.cxx
@@ -0,0 +1,115 @@
+/* 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 <rdr/OutStream.h>
+#include <rfb/encodings.h>
+#include <rfb/SConnection.h>
+#include <rfb/PixelFormat.h>
+#include <rfb/PixelBuffer.h>
+#include <rfb/Palette.h>
+#include <rfb/RREEncoder.h>
+
+using namespace rfb;
+
+#define BPP 8
+#include <rfb/rreEncode.h>
+#undef BPP
+#define BPP 16
+#include <rfb/rreEncode.h>
+#undef BPP
+#define BPP 32
+#include <rfb/rreEncode.h>
+#undef BPP
+
+RREEncoder::RREEncoder(SConnection* conn) :
+  Encoder(conn, encodingRRE, EncoderPlain, -1)
+{
+}
+
+RREEncoder::~RREEncoder()
+{
+}
+
+bool RREEncoder::isSupported()
+{
+  return conn->cp.supportsEncoding(encodingRRE);
+}
+
+void RREEncoder::writeRect(const PixelBuffer* pb, const Palette& palette)
+{
+  rdr::U8* imageBuf;
+  int stride;
+  rdr::U32 bg;
+
+  int w = pb->width();
+  int h = pb->height();
+
+  if (palette.size() == 1) {
+    Encoder::writeSolidRect(pb, palette);
+    return;
+  }
+
+  // We have to have our own copy of the data as we modify it as
+  // we find subrects.
+  bufferCopy.setPF(pb->getPF());
+  bufferCopy.setSize(w, h);
+
+  imageBuf = bufferCopy.getBufferRW(pb->getRect(), &stride);
+  pb->getImage(imageBuf, pb->getRect());
+
+  if (palette.size() > 0)
+    bg = palette.getColour(0);
+  else {
+    // Some crazy person is using this encoder for high colour
+    // data. Just pick the first pixel as the background colour.
+    bg = 0;
+    memcpy(&bg, imageBuf, pb->getPF().bpp/8);
+  }
+
+  int nSubrects = -1;
+  switch (pb->getPF().bpp) {
+  case 8:
+    nSubrects = rreEncode8((rdr::U8*)imageBuf, w, h, &mos, bg);
+    break;
+  case 16:
+    nSubrects = rreEncode16((rdr::U16*)imageBuf, w, h, &mos, bg);
+    break;
+  case 32:
+    nSubrects = rreEncode32((rdr::U32*)imageBuf, w, h, &mos, bg);
+    break;
+  }
+
+  bufferCopy.commitBufferRW(pb->getRect());
+
+  rdr::OutStream* os = conn->getOutStream();
+  os->writeU32(nSubrects);
+  os->writeBytes(mos.data(), mos.length());
+  mos.clear();
+}
+
+void RREEncoder::writeSolidRect(int width, int height,
+                                const PixelFormat& pf,
+                                const rdr::U8* colour)
+{
+  rdr::OutStream* os;
+
+  os = conn->getOutStream();
+
+  os->writeU32(0);
+  os->writeBytes(colour, pf.bpp/8);
+}