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/HextileEncoder.cxx
+++ b/common/rfb/HextileEncoder.cxx
@@ -0,0 +1,106 @@
+/* Copyright (C) 2002-2005 RealVNC Ltd.  All Rights Reserved.
+ * Copyright (C) 2005 Constantin Kaplinsky.  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/encodings.h>
+#include <rfb/SConnection.h>
+#include <rfb/HextileEncoder.h>
+#include <rfb/PixelBuffer.h>
+#include <rfb/Configuration.h>
+
+using namespace rfb;
+
+BoolParameter improvedHextile("ImprovedHextile",
+                              "Use improved compression algorithm for Hextile "
+                              "encoding which achieves better compression "
+                              "ratios by the cost of using more CPU time",
+                              true);
+
+#define BPP 8
+#include <rfb/hextileEncode.h>
+#include <rfb/hextileEncodeBetter.h>
+#undef BPP
+#define BPP 16
+#include <rfb/hextileEncode.h>
+#include <rfb/hextileEncodeBetter.h>
+#undef BPP
+#define BPP 32
+#include <rfb/hextileEncode.h>
+#include <rfb/hextileEncodeBetter.h>
+#undef BPP
+
+HextileEncoder::HextileEncoder(SConnection* conn) :
+  Encoder(conn, encodingHextile, EncoderPlain, -1)
+{
+}
+
+HextileEncoder::~HextileEncoder()
+{
+}
+
+bool HextileEncoder::isSupported()
+{
+  return conn->cp.supportsEncoding(encodingHextile);
+}
+
+void HextileEncoder::writeRect(const PixelBuffer* pb, const Palette& palette)
+{
+  rdr::OutStream* os = conn->getOutStream();
+  switch (pb->getPF().bpp) {
+  case 8:
+    if (improvedHextile) {
+      hextileEncodeBetter8(os, pb);
+    } else {
+      hextileEncode8(os, pb);
+    }
+    break;
+  case 16:
+    if (improvedHextile) {
+      hextileEncodeBetter16(os, pb);
+    } else {
+      hextileEncode16(os, pb);
+    }
+    break;
+  case 32:
+    if (improvedHextile) {
+      hextileEncodeBetter32(os, pb);
+    } else {
+      hextileEncode32(os, pb);
+    }
+    break;
+  }
+}
+
+void HextileEncoder::writeSolidRect(int width, int height,
+                                    const PixelFormat& pf,
+                                    const rdr::U8* colour)
+{
+  rdr::OutStream* os;
+  int tiles;
+
+  os = conn->getOutStream();
+
+  tiles = ((width + 15)/16) * ((height + 15)/16);
+
+  os->writeU8(hextileBgSpecified);
+  os->writeBytes(colour, pf.bpp/8);
+  tiles--;
+
+  while (tiles--)
+      os->writeU8(0);
+}