Imported nxcomp-3.1.0-4.tar.gznxcomp/3.1.0-4

Summary: Imported nxcomp-3.1.0-4.tar.gz
Keywords:

Imported nxcomp-3.1.0-4.tar.gz
into Git repository

1 files changed, 595 insertions, 0 deletions

diff --git a/nxcomp/PutPackedImage.cpp b/nxcomp/PutPackedImage.cpp
new file mode 100755
index 000000000..6c8a214b9
--- /dev/null
+++ b/nxcomp/PutPackedImage.cpp
@@ -0,0 +1,595 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2007 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXCOMP, NX protocol compression and NX extensions to this software     */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of NoMachine S.r.l.                    */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+#include "PutPackedImage.h"
+
+#include "ClientCache.h"
+
+#include "EncodeBuffer.h"
+#include "DecodeBuffer.h"
+
+#include "WriteBuffer.h"
+
+//
+// Set the verbosity level.
+//
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+#undef  DUMP
+
+//
+// Constructors and destructors.
+//
+
+PutPackedImageStore::PutPackedImageStore(StaticCompressor *compressor)
+
+  : MessageStore(compressor)
+{
+  enableCache    = PUTPACKEDIMAGE_ENABLE_CACHE;
+  enableData     = PUTPACKEDIMAGE_ENABLE_DATA;
+  enableSplit    = PUTPACKEDIMAGE_ENABLE_SPLIT;
+  enableCompress = PUTPACKEDIMAGE_ENABLE_COMPRESS;
+
+  dataLimit  = PUTPACKEDIMAGE_DATA_LIMIT;
+  dataOffset = PUTPACKEDIMAGE_DATA_OFFSET;
+
+  cacheSlots          = PUTPACKEDIMAGE_CACHE_SLOTS;
+  cacheThreshold      = PUTPACKEDIMAGE_CACHE_THRESHOLD;
+  cacheLowerThreshold = PUTPACKEDIMAGE_CACHE_LOWER_THRESHOLD;
+
+  if (control -> isProtoStep8() == 1)
+  {
+    enableSplit = PUTPACKEDIMAGE_ENABLE_SPLIT_IF_PROTO_STEP_8;
+  }
+
+  messages_ -> resize(cacheSlots);
+
+  for (T_messages::iterator i = messages_ -> begin();
+           i < messages_ -> end(); i++)
+  {
+    *i = NULL;
+  }
+
+  temporary_ = NULL;
+}
+
+PutPackedImageStore::~PutPackedImageStore()
+{
+  for (T_messages::iterator i = messages_ -> begin();
+           i < messages_ -> end(); i++)
+  {
+    destroy(*i);
+  }
+
+  destroy(temporary_);
+}
+
+//
+// Here are the methods to handle messages' content.
+//
+
+int PutPackedImageStore::encodeIdentity(EncodeBuffer &encodeBuffer, const unsigned char *buffer,
+                                            const unsigned int size, int bigEndian,
+                                                ChannelCache *channelCache) const
+{
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoding full message identity.\n" << logofs_flush;
+  #endif
+
+  // Client.
+  encodeBuffer.encodeCachedValue(*(buffer + 1), 8,
+                     clientCache -> resourceCache);
+
+  // Size.
+  encodeBuffer.encodeValue(GetUINT(buffer + 2, bigEndian), 16, 10);
+
+  // Drawable.
+  encodeBuffer.encodeXidValue(GetULONG(buffer + 4, bigEndian),
+                     clientCache -> drawableCache);
+  // GC.
+  encodeBuffer.encodeXidValue(GetULONG(buffer + 8, bigEndian),
+                     clientCache -> gcCache);
+  // Method.
+  encodeBuffer.encodeCachedValue(*(buffer + 12), 8,
+                     clientCache -> methodCache);
+  // Format.
+  encodeBuffer.encodeValue(*(buffer + 13), 2);
+
+  // SrcDepth.
+  encodeBuffer.encodeCachedValue(*(buffer + 14), 8,
+                     clientCache -> depthCache);
+  // DstDepth.
+  encodeBuffer.encodeCachedValue(*(buffer + 15), 8,
+                     clientCache -> depthCache);
+  // SrcLength.
+  encodeBuffer.encodeCachedValue(GetULONG(buffer + 16, bigEndian), 24,
+                     clientCache -> putPackedImageSrcLengthCache);
+  // DstLength.
+  encodeBuffer.encodeCachedValue(GetULONG(buffer + 20, bigEndian), 24,
+                     clientCache -> putPackedImageDstLengthCache);
+  // SrcX.
+  unsigned int x = GetUINT(buffer + 24, bigEndian);
+  int xDiff = x - clientCache -> putImageLastX;
+  clientCache -> putImageLastX = x;
+  encodeBuffer.encodeCachedValue(xDiff, 16,
+                     clientCache -> putImageXCache, 8);
+  // SrcY.
+  unsigned int y = GetUINT(buffer + 26, bigEndian);
+  int yDiff = y - clientCache -> putImageLastY;
+  clientCache -> putImageLastY = y;
+  encodeBuffer.encodeCachedValue(yDiff, 16,
+                     clientCache -> putImageYCache, 8);
+  // SrcWidth.
+  encodeBuffer.encodeCachedValue(GetUINT(buffer + 28, bigEndian), 16,
+                     clientCache -> putImageWidthCache, 8);
+  // SrcHeight.
+  encodeBuffer.encodeCachedValue(GetUINT(buffer + 30, bigEndian), 16,
+                     clientCache -> putImageHeightCache, 8);
+  // DstX.
+  x = GetUINT(buffer + 32, bigEndian);
+  xDiff = x - clientCache -> putImageLastX;
+  clientCache -> putImageLastX = x;
+  encodeBuffer.encodeCachedValue(xDiff, 16,
+                     clientCache -> putImageXCache, 8);
+  // DstY.
+  y = GetUINT(buffer + 34, bigEndian);
+  yDiff = y - clientCache -> putImageLastY;
+  clientCache -> putImageLastY = y;
+  encodeBuffer.encodeCachedValue(yDiff, 16,
+                     clientCache -> putImageYCache, 8);
+  // DstWidth.
+  encodeBuffer.encodeCachedValue(GetUINT(buffer + 36, bigEndian), 16,
+                     clientCache -> putImageWidthCache, 8);
+  // DstHeight.
+  encodeBuffer.encodeCachedValue(GetUINT(buffer + 38, bigEndian), 16,
+                     clientCache -> putImageHeightCache, 8);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoded full message identity.\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int PutPackedImageStore::decodeIdentity(DecodeBuffer &decodeBuffer, unsigned char *&buffer,
+                                            unsigned int &size, int bigEndian, WriteBuffer *writeBuffer,
+                                                ChannelCache *channelCache) const
+{
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoding full message identity.\n" << logofs_flush;
+  #endif
+
+  unsigned int value;
+  unsigned char cValue;
+
+  // Client.
+  decodeBuffer.decodeCachedValue(cValue, 8,
+                     clientCache -> resourceCache);
+
+  // Size.
+  decodeBuffer.decodeValue(size, 16, 10);
+
+  size <<= 2;
+
+  buffer = writeBuffer -> addMessage(size);
+
+  *(buffer + 1) = cValue;
+
+  // Drawable.
+  decodeBuffer.decodeXidValue(value, clientCache -> drawableCache);
+  PutULONG(value, buffer + 4, bigEndian);
+
+  // GC.
+  decodeBuffer.decodeXidValue(value, clientCache -> gcCache);
+  PutULONG(value, buffer + 8, bigEndian);
+
+  // Method.
+  decodeBuffer.decodeCachedValue(cValue, 8,
+                     clientCache -> methodCache);
+  *(buffer + 12) = cValue;
+
+  // Format.
+  decodeBuffer.decodeValue(value, 2);
+  *(buffer + 13) = value;
+
+  // SrcDepth.
+  decodeBuffer.decodeCachedValue(cValue, 8,
+                     clientCache -> depthCache);
+  *(buffer + 14) = cValue;
+
+  // DstDepth.
+  decodeBuffer.decodeCachedValue(cValue, 8,
+                     clientCache -> depthCache);
+  *(buffer + 15) = cValue;
+
+  // SrcLength.
+  decodeBuffer.decodeCachedValue(value, 24,
+                     clientCache -> putPackedImageSrcLengthCache);
+  PutULONG(value, buffer + 16, bigEndian);
+
+  // DstLength.
+  decodeBuffer.decodeCachedValue(value, 24,
+                     clientCache -> putPackedImageDstLengthCache);
+  PutULONG(value, buffer + 20, bigEndian);
+
+  // SrcX.
+  decodeBuffer.decodeCachedValue(value, 16,
+                     clientCache -> putImageXCache, 8);
+  clientCache -> putImageLastX += value;
+  clientCache -> putImageLastX &= 0xffff;
+  PutUINT(clientCache -> putImageLastX, buffer + 24, bigEndian);
+
+  // SrcY.
+  decodeBuffer.decodeCachedValue(value, 16,
+                     clientCache -> putImageYCache, 8);
+  clientCache -> putImageLastY += value;
+  clientCache -> putImageLastY &= 0xffff;
+  PutUINT(clientCache -> putImageLastY, buffer + 26, bigEndian);
+
+  // SrcWidth.
+  decodeBuffer.decodeCachedValue(value, 16,
+                     clientCache -> putImageWidthCache, 8);
+  PutUINT(value, buffer + 28, bigEndian);
+
+  // SrcHeight.
+  decodeBuffer.decodeCachedValue(value, 16,
+                     clientCache -> putImageHeightCache, 8);
+  PutUINT(value, buffer + 30, bigEndian);
+
+  // DstX.
+  decodeBuffer.decodeCachedValue(value, 16,
+                     clientCache -> putImageXCache, 8);
+  clientCache -> putImageLastX += value;
+  clientCache -> putImageLastX &= 0xffff;
+  PutUINT(clientCache -> putImageLastX, buffer + 32, bigEndian);
+
+  // DstY.
+  decodeBuffer.decodeCachedValue(value, 16,
+                     clientCache -> putImageYCache, 8);
+  clientCache -> putImageLastY += value;
+  clientCache -> putImageLastY &= 0xffff;
+  PutUINT(clientCache -> putImageLastY, buffer + 34, bigEndian);
+
+  // DstWidth.
+  decodeBuffer.decodeCachedValue(value, 16,
+                     clientCache -> putImageWidthCache, 8);
+  PutUINT(value, buffer + 36, bigEndian);
+
+  // DstHeight.
+  decodeBuffer.decodeCachedValue(value, 16,
+                     clientCache -> putImageHeightCache, 8);
+  PutUINT(value, buffer + 38, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded full message identity.\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int PutPackedImageStore::parseIdentity(Message *message, const unsigned char *buffer,
+                                           unsigned int size, int bigEndian) const
+{
+  PutPackedImageMessage *putPackedImage = (PutPackedImageMessage *) message;
+
+  //
+  // Here is the fingerprint.
+  //
+
+  putPackedImage -> client = *(buffer + 1);
+
+  putPackedImage -> drawable = GetULONG(buffer + 4,  bigEndian); 
+  putPackedImage -> gcontext = GetULONG(buffer + 8,  bigEndian);
+
+  putPackedImage -> method = *(buffer + 12);
+
+  putPackedImage -> format    = *(buffer + 13);
+  putPackedImage -> src_depth = *(buffer + 14);
+  putPackedImage -> dst_depth = *(buffer + 15);
+
+  putPackedImage -> src_length = GetULONG(buffer + 16,  bigEndian);
+  putPackedImage -> dst_length = GetULONG(buffer + 20,  bigEndian);
+
+  putPackedImage -> src_x      = GetUINT(buffer + 24, bigEndian);
+  putPackedImage -> src_y      = GetUINT(buffer + 26, bigEndian);
+  putPackedImage -> src_width  = GetUINT(buffer + 28, bigEndian);
+  putPackedImage -> src_height = GetUINT(buffer + 30, bigEndian);
+
+  putPackedImage -> dst_x      = GetUINT(buffer + 32, bigEndian);
+  putPackedImage -> dst_y      = GetUINT(buffer + 34, bigEndian);
+  putPackedImage -> dst_width  = GetUINT(buffer + 36, bigEndian);
+  putPackedImage -> dst_height = GetUINT(buffer + 38, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Parsed identity for message at "
+          << message << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+int PutPackedImageStore::unparseIdentity(const Message *message, unsigned char *buffer,
+                                             unsigned int size, int bigEndian) const
+{
+  PutPackedImageMessage *putPackedImage = (PutPackedImageMessage *) message;
+
+  //
+  // Fill all the message's fields.
+  //
+
+  *(buffer + 1) = putPackedImage -> client;
+
+  PutULONG(putPackedImage -> drawable, buffer + 4, bigEndian);
+  PutULONG(putPackedImage -> gcontext, buffer + 8, bigEndian);
+
+  *(buffer + 12) = putPackedImage -> method;
+
+  *(buffer + 13) = putPackedImage -> format;
+  *(buffer + 14) = putPackedImage -> src_depth;
+  *(buffer + 15) = putPackedImage -> dst_depth;
+
+  PutULONG(putPackedImage -> src_length, buffer + 16, bigEndian);
+  PutULONG(putPackedImage -> dst_length, buffer + 20, bigEndian);
+
+  PutUINT(putPackedImage -> src_x,      buffer + 24, bigEndian);
+  PutUINT(putPackedImage -> src_y,      buffer + 26, bigEndian);
+  PutUINT(putPackedImage -> src_width,  buffer + 28, bigEndian);
+  PutUINT(putPackedImage -> src_height, buffer + 30, bigEndian);
+
+  PutUINT(putPackedImage -> dst_x,      buffer + 32, bigEndian);
+  PutUINT(putPackedImage -> dst_y,      buffer + 34, bigEndian);
+  PutUINT(putPackedImage -> dst_width,  buffer + 36, bigEndian);
+  PutUINT(putPackedImage -> dst_height, buffer + 38, bigEndian);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Unparsed identity for message at "
+          << message << ".\n" << logofs_flush;
+  #endif
+
+  return 1;
+}
+
+void PutPackedImageStore::dumpIdentity(const Message *message) const
+{
+  #ifdef DUMP
+
+  PutPackedImageMessage *putPackedImage = (PutPackedImageMessage *) message;
+
+  *logofs << name() << ": Identity format "
+
+          << "drawable " << putPackedImage -> drawable << ", "
+          << "gcontext " << putPackedImage -> gcontext << ", "
+
+          << "format "     << (unsigned int) putPackedImage -> format     << ", "
+          << "method "     << (unsigned int) putPackedImage -> method     << ", "
+
+          << "src_depth "  << (unsigned int) putPackedImage -> src_depth  << ", "
+          << "dst_depth "  << (unsigned int) putPackedImage -> dst_depth  << ", "
+
+          << "src_length " << putPackedImage -> src_length << ", "
+          << "dst_length " << putPackedImage -> dst_length << ", "
+
+          << "src_x "      << putPackedImage -> src_x      << ", "
+          << "src_y "      << putPackedImage -> src_y      << ", "
+          << "src_width "  << putPackedImage -> src_width  << ", "
+          << "src_height " << putPackedImage -> src_height << ", "
+
+          << "dst_x "      << putPackedImage -> dst_x      << ", "
+          << "dst_y "      << putPackedImage -> dst_y      << ", "
+          << "dst_width "  << putPackedImage -> dst_width  << ", "
+          << "dst_height " << putPackedImage -> dst_height << ", "
+
+          << "size "   << putPackedImage -> size_   << ".\n"
+          << logofs_flush;
+
+  #endif
+}
+
+void PutPackedImageStore::identityChecksum(const Message *message, const unsigned char *buffer,
+                                               unsigned int size, int bigEndian) const
+{
+  //
+  // Fields method, format, src_depth, dst_depth,
+  // src_length, dst_length, src_x, src_y, src_width,
+  // src_height.
+  //
+  //
+  // TODO: We should better investigate the effect of
+  // having fields src_x and src_y in identity instead
+  // of keeping them in differences.
+  //
+
+  md5_append(md5_state_, buffer + 12, 20);
+}
+
+void PutPackedImageStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+                                             const Message *cachedMessage,
+                                                 ChannelCache *channelCache) const
+{
+  //
+  // Encode the variant part.
+  //
+
+  PutPackedImageMessage *putPackedImage       = (PutPackedImageMessage *) message;
+  PutPackedImageMessage *cachedPutPackedImage = (PutPackedImageMessage *) cachedMessage;
+
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value "
+          << (unsigned int) putPackedImage -> client
+          << " as client field.\n" << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeCachedValue(putPackedImage -> client, 8,
+                     clientCache -> resourceCache);
+
+  cachedPutPackedImage -> client = putPackedImage -> client;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << putPackedImage -> drawable
+          << " as drawable field.\n" << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeXidValue(putPackedImage -> drawable, clientCache -> drawableCache);
+
+  cachedPutPackedImage -> drawable = putPackedImage -> drawable;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << putPackedImage -> gcontext
+          << " as gcontext field.\n" << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeXidValue(putPackedImage -> gcontext, clientCache -> gcCache);
+
+  cachedPutPackedImage -> gcontext = putPackedImage -> gcontext;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << putPackedImage -> dst_x
+          << " as " << "dst_x" << " field.\n" << logofs_flush;
+  #endif
+
+  unsigned short int diff_x = putPackedImage -> dst_x - cachedPutPackedImage -> dst_x;
+
+  encodeBuffer.encodeCachedValue(diff_x, 16,
+                     clientCache -> putImageXCache, 8);
+
+  cachedPutPackedImage -> dst_x = putPackedImage -> dst_x;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << putPackedImage -> dst_y
+          << " as " << "dst_y" << " field.\n" << logofs_flush;
+  #endif
+
+  unsigned short int diff_y = putPackedImage -> dst_y - cachedPutPackedImage -> dst_y;
+
+  encodeBuffer.encodeCachedValue(diff_y, 16,
+                     clientCache -> putImageYCache, 8);
+
+  cachedPutPackedImage -> dst_y = putPackedImage -> dst_y;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << putPackedImage -> dst_width
+          << " as " << "dst_width" << " field.\n" << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeCachedValue(putPackedImage -> dst_width, 16,
+                     clientCache -> putImageWidthCache, 8);
+
+  cachedPutPackedImage -> dst_width = putPackedImage -> dst_width;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoding value " << putPackedImage -> dst_height
+          << " as " << "dst_height" << " field.\n" << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeCachedValue(putPackedImage -> dst_height, 16,
+                     clientCache -> putImageHeightCache, 8);
+
+  cachedPutPackedImage -> dst_height = putPackedImage -> dst_height;
+}
+
+void PutPackedImageStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+                                             ChannelCache *channelCache) const
+{
+  //
+  // Decode the variant part.
+  //
+
+  PutPackedImageMessage *putPackedImage = (PutPackedImageMessage *) message;
+
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  unsigned int  value;
+
+  decodeBuffer.decodeCachedValue(putPackedImage -> client, 8,
+                     clientCache -> resourceCache);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value "
+          << (unsigned int) putPackedImage -> client
+          << " as client field.\n" << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeXidValue(value, clientCache -> drawableCache);
+
+  putPackedImage -> drawable = value;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << putPackedImage -> drawable
+          << " as drawable field.\n" << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeXidValue(value, clientCache -> gcCache);
+
+  putPackedImage -> gcontext = value;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << putPackedImage -> gcontext
+          << " as gcontext field.\n" << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeCachedValue(value, 16,
+               clientCache -> putImageXCache, 8);
+
+  putPackedImage -> dst_x += value;
+  putPackedImage -> dst_x &= 0xffff;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << putPackedImage -> dst_x
+          << " as dst_x field.\n" << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeCachedValue(value, 16,
+               clientCache -> putImageYCache, 8);
+
+  putPackedImage -> dst_y += value;
+  putPackedImage -> dst_y &= 0xffff;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << putPackedImage -> dst_y
+          << " as dst_y field.\n" << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeCachedValue(value, 16,
+               clientCache -> putImageWidthCache, 8);
+
+  putPackedImage -> dst_width = value;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << putPackedImage -> dst_width
+          << " as dst_width field.\n" << logofs_flush;
+  #endif
+
+  decodeBuffer.decodeCachedValue(value, 16,
+               clientCache -> putImageHeightCache, 8);
+
+  putPackedImage -> dst_height = value;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << putPackedImage -> dst_height
+          << " as dst_height field.\n" << logofs_flush;
+  #endif
+}
+