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, 266 insertions, 0 deletions

diff --git a/nxcomp/RenderPictureFilter.cpp b/nxcomp/RenderPictureFilter.cpp
new file mode 100755
index 000000000..03add8ff7
--- /dev/null
+++ b/nxcomp/RenderPictureFilter.cpp
@@ -0,0 +1,266 @@
+/**************************************************************************/
+/*                                                                        */
+/* 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 the template for
+// this message class.
+//
+
+#include "RenderPictureFilter.h"
+
+//
+// Set the verbosity level.
+//
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+
+#include MESSAGE_TAGS
+
+//
+// Message handling methods.
+//
+
+MESSAGE_BEGIN_ENCODE_SIZE
+{
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoding value "
+          << ((size - MESSAGE_OFFSET) >> 2) << ".\n"
+          << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeCachedValue((size - MESSAGE_OFFSET) >> 2, 16,
+                     clientCache -> renderLengthCache, 5);
+
+  #ifdef TEST
+  *logofs << name() << ": Encoded size with value "
+          << size << ".\n" << logofs_flush;
+  #endif
+}
+MESSAGE_END_ENCODE_SIZE
+
+MESSAGE_BEGIN_DECODE_SIZE
+{
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  decodeBuffer.decodeCachedValue(size, 16,
+                     clientCache -> renderLengthCache, 5);
+
+  #ifdef DEBUG
+  *logofs << name() << ": Decoded value " << size
+          << ".\n" << logofs_flush;
+  #endif
+
+  size = MESSAGE_OFFSET + (size << 2);
+
+  buffer = writeBuffer -> addMessage(size);
+
+  #ifdef TEST
+  *logofs << name() << ": Decoded size with value "
+          << size << ".\n" << logofs_flush;
+  #endif
+}
+MESSAGE_END_DECODE_SIZE
+
+MESSAGE_BEGIN_ENCODE_MESSAGE
+{
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  encodeBuffer.encodeXidValue(GetULONG(buffer + 4, bigEndian),
+                     clientCache -> renderSrcPictureCache);
+
+  encodeBuffer.encodeCachedValue(GetUINT(buffer + 8, bigEndian), 16,
+                     clientCache -> renderLengthCache, 5);
+
+  #ifdef TEST
+  *logofs << name() << ": Encoded message. Type is "
+          << (unsigned int) *(buffer + 1) << " size is "
+          << size << ".\n" << logofs_flush;
+  #endif
+}
+MESSAGE_END_ENCODE_MESSAGE
+
+MESSAGE_BEGIN_DECODE_MESSAGE
+{
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  unsigned int value;
+
+  *(buffer + 1) = type;
+
+  decodeBuffer.decodeXidValue(value,
+                     clientCache -> renderSrcPictureCache);
+
+  PutULONG(value, buffer + 4, bigEndian);
+
+  decodeBuffer.decodeCachedValue(value, 16,
+                     clientCache -> renderLengthCache, 5);
+
+  PutUINT(value, buffer + 8, bigEndian);
+
+  #ifdef TEST
+  *logofs << name() << ": Decoded message. Type is "
+          << (unsigned int) type << " size is " << size
+          << ".\n" << logofs_flush;
+  #endif
+}
+MESSAGE_END_DECODE_MESSAGE
+
+MESSAGE_BEGIN_ENCODE_DATA
+{
+  encodeCharData(encodeBuffer, buffer, MESSAGE_OFFSET,
+                     size, bigEndian, channelCache);
+
+  #ifdef TEST
+  *logofs << name() << ": Encoded " << size - MESSAGE_OFFSET
+          << " bytes of data.\n" << logofs_flush;
+  #endif
+}
+MESSAGE_END_ENCODE_DATA
+
+MESSAGE_BEGIN_DECODE_DATA
+{
+  decodeCharData(decodeBuffer, buffer, MESSAGE_OFFSET,
+                     size, bigEndian, channelCache);
+
+  #ifdef TEST
+  *logofs << name() << ": Decoded " << size - MESSAGE_OFFSET
+          << " bytes of data.\n" << logofs_flush;
+  #endif
+}
+MESSAGE_END_DECODE_DATA
+
+MESSAGE_BEGIN_PARSE_IDENTITY
+{
+  RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message;
+
+  renderExtension -> data.picture_filter.type = *(buffer + 1);
+
+  renderExtension -> data.picture_filter.src_id = GetULONG(buffer + 4, bigEndian);
+  renderExtension -> data.picture_filter.num_elm = GetUINT(buffer + 8, bigEndian);
+
+  //
+  // Clean the padding bytes. This
+  // should be the purpose of the
+  // filter.
+  //
+
+  #ifdef TEST
+  *logofs << name() << ": Cleaning "
+          << RoundUp4(renderExtension -> data.picture_filter.num_elm) -
+             renderExtension -> data.picture_filter.num_elm << " bytes "
+          << "at offset " << MESSAGE_OFFSET + renderExtension ->
+             data.picture_filter.num_elm << " with " << renderExtension ->
+             data.picture_filter.num_elm << " elements and size "
+          << renderExtension -> size_ << ".\n" << logofs_flush;
+  #endif
+
+  if (size >= MESSAGE_OFFSET + renderExtension ->
+          data.picture_filter.num_elm)
+  {
+    unsigned char *next = (unsigned char *) buffer +
+                              MESSAGE_OFFSET + renderExtension ->
+                                  data.picture_filter.num_elm;
+
+    while (next < buffer + size)
+    {
+      *next++ = '\0';
+    }
+  }
+
+  #ifdef TEST
+  *logofs << name() << ": Parsed identity. Type is "
+          << (unsigned int) renderExtension -> data.picture_filter.type
+          << " size is " << renderExtension -> size_ << ".\n"
+          << logofs_flush;
+  #endif
+}
+MESSAGE_END_PARSE_IDENTITY
+
+MESSAGE_BEGIN_UNPARSE_IDENTITY
+{
+  RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message;
+
+  *(buffer + 1) = renderExtension -> data.picture_filter.type;
+
+  PutULONG(renderExtension -> data.picture_filter.src_id, buffer + 4, bigEndian);
+  PutUINT(renderExtension -> data.picture_filter.num_elm, buffer + 8, bigEndian);
+
+  #ifdef TEST
+  *logofs << name() << ": Unparsed identity. Type is "
+          << (unsigned int) renderExtension -> data.picture_filter.type
+          << " size is " << renderExtension -> size_ << ".\n"
+          << logofs_flush;
+  #endif
+}
+MESSAGE_END_UNPARSE_IDENTITY
+
+MESSAGE_BEGIN_IDENTITY_CHECKSUM
+{
+  //
+  // Include the length of the filter name
+  // in the checksum.
+  //
+
+  md5_append(md5_state, buffer + 1, 3);
+  md5_append(md5_state, buffer + 8, 2);
+}
+MESSAGE_END_IDENTITY_CHECKSUM
+
+MESSAGE_BEGIN_ENCODE_UPDATE
+{
+  RenderExtensionMessage *renderExtension       = (RenderExtensionMessage *) message;
+  RenderExtensionMessage *cachedRenderExtension = (RenderExtensionMessage *) cachedMessage;
+
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  encodeBuffer.encodeXidValue(renderExtension -> data.picture_filter.src_id,
+                     clientCache -> renderSrcPictureCache);
+
+  cachedRenderExtension -> data.picture_filter.src_id =
+              renderExtension -> data.picture_filter.src_id;
+
+  #ifdef TEST
+  *logofs << name() << ": Encoded update. Type is "
+          << (unsigned int) renderExtension -> data.picture_filter.type
+          << " size is " << renderExtension -> size_ << ".\n"
+          << logofs_flush;
+  #endif
+}
+MESSAGE_END_ENCODE_UPDATE
+
+MESSAGE_BEGIN_DECODE_UPDATE
+{
+  RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message;
+
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  decodeBuffer.decodeXidValue(renderExtension -> data.picture_filter.src_id,
+                     clientCache -> renderSrcPictureCache);
+
+  #ifdef TEST
+  *logofs << name() << ": Decoded update. Type is "
+          << (unsigned int) renderExtension -> data.picture_filter.type
+          << " size is " << renderExtension -> size_ << ".\n"
+          << logofs_flush;
+  #endif
+}
+MESSAGE_END_DECODE_UPDATE