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-rw-r--r--nxcomp/SetUnpackAlphaCompat.cpp250
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diff --git a/nxcomp/SetUnpackAlphaCompat.cpp b/nxcomp/SetUnpackAlphaCompat.cpp
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+++ b/nxcomp/SetUnpackAlphaCompat.cpp
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+/**************************************************************************/
+/* */
+/* Copyright (c) 2001, 2010 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 Medialogic S.p.A. */
+/* */
+/* All rights reserved. */
+/* */
+/**************************************************************************/
+
+#include "SetUnpackAlphaCompat.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.
+//
+
+SetUnpackAlphaCompatStore::SetUnpackAlphaCompatStore(StaticCompressor *compressor)
+
+ : MessageStore(compressor)
+{
+ enableCache = SETUNPACKALPHA_ENABLE_CACHE;
+ enableData = SETUNPACKALPHA_ENABLE_DATA;
+ enableSplit = SETUNPACKALPHA_ENABLE_SPLIT;
+ enableCompress = SETUNPACKALPHA_ENABLE_COMPRESS;
+
+ dataLimit = SETUNPACKALPHA_DATA_LIMIT;
+ dataOffset = SETUNPACKALPHA_DATA_OFFSET;
+
+ cacheSlots = SETUNPACKALPHA_CACHE_SLOTS;
+ cacheThreshold = SETUNPACKALPHA_CACHE_THRESHOLD;
+ cacheLowerThreshold = SETUNPACKALPHA_CACHE_LOWER_THRESHOLD;
+
+ messages_ -> resize(cacheSlots);
+
+ for (T_messages::iterator i = messages_ -> begin();
+ i < messages_ -> end(); i++)
+ {
+ *i = NULL;
+ }
+
+ temporary_ = NULL;
+}
+
+SetUnpackAlphaCompatStore::~SetUnpackAlphaCompatStore()
+{
+ for (T_messages::iterator i = messages_ -> begin();
+ i < messages_ -> end(); i++)
+ {
+ destroy(*i);
+ }
+
+ destroy(temporary_);
+}
+
+//
+// Here are the methods to handle messages' content.
+//
+
+int SetUnpackAlphaCompatStore::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);
+ // Entries.
+ encodeBuffer.encodeValue(GetULONG(buffer + 4, bigEndian), 32, 9);
+
+ #ifdef DEBUG
+ *logofs << name() << ": Encoded full message identity.\n" << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+int SetUnpackAlphaCompatStore::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);
+ // Entries.
+ decodeBuffer.decodeValue(value, 32, 9);
+
+ size = RoundUp4(value) + 8;
+
+ buffer = writeBuffer -> addMessage(size);
+
+ *(buffer + 1) = cValue;
+
+ PutULONG(value, buffer + 4, bigEndian);
+
+ #ifdef DEBUG
+ *logofs << name() << ": Decoded full message identity.\n" << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+int SetUnpackAlphaCompatStore::parseIdentity(Message *message, const unsigned char *buffer,
+ unsigned int size, int bigEndian) const
+{
+ SetUnpackAlphaCompatMessage *setUnpackAlpha = (SetUnpackAlphaCompatMessage *) message;
+
+ setUnpackAlpha -> client = *(buffer + 1);
+
+ setUnpackAlpha -> entries = GetULONG(buffer + 4, bigEndian);
+
+ #ifdef DEBUG
+ *logofs << name() << ": Parsed identity for message at " << message << ".\n" << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+int SetUnpackAlphaCompatStore::unparseIdentity(const Message *message, unsigned char *buffer,
+ unsigned int size, int bigEndian) const
+{
+ SetUnpackAlphaCompatMessage *setUnpackAlpha = (SetUnpackAlphaCompatMessage *) message;
+
+ *(buffer + 1) = setUnpackAlpha -> client;
+
+ PutULONG(setUnpackAlpha -> entries, buffer + 4, bigEndian);
+
+ #ifdef DEBUG
+ *logofs << name() << ": Unparsed identity for message at " << message << ".\n" << logofs_flush;
+ #endif
+
+ return 1;
+}
+
+void SetUnpackAlphaCompatStore::dumpIdentity(const Message *message) const
+{
+ #ifdef DUMP
+
+ SetUnpackAlphaCompatMessage *setUnpackAlpha = (SetUnpackAlphaCompatMessage *) message;
+
+ *logofs << name() << ": Identity client "
+ << (unsigned int) setUnpackAlpha -> client << " entries "
+ << setUnpackAlpha -> entries << " size "
+ << setUnpackAlpha -> size_ << ".\n";
+
+ #endif
+}
+
+void SetUnpackAlphaCompatStore::identityChecksum(const Message *message, const unsigned char *buffer,
+ unsigned int size, int bigEndian) const
+{
+ md5_append(md5_state_, buffer + 4, 4);
+}
+
+void SetUnpackAlphaCompatStore::updateIdentity(EncodeBuffer &encodeBuffer, const Message *message,
+ const Message *cachedMessage,
+ ChannelCache *channelCache) const
+{
+ SetUnpackAlphaCompatMessage *setUnpackAlpha = (SetUnpackAlphaCompatMessage *) message;
+ SetUnpackAlphaCompatMessage *cachedSetUnpackAlpha = (SetUnpackAlphaCompatMessage *) cachedMessage;
+
+ ClientCache *clientCache = (ClientCache *) channelCache;
+
+ encodeBuffer.encodeCachedValue(setUnpackAlpha -> client, 8,
+ clientCache -> resourceCache);
+
+ cachedSetUnpackAlpha -> client = setUnpackAlpha -> client;
+
+ if (cachedSetUnpackAlpha -> entries != setUnpackAlpha -> entries)
+ {
+ #ifdef TEST
+ *logofs << name() << ": Encoding value " << setUnpackAlpha -> entries
+ << " as entries field.\n" << logofs_flush;
+ #endif
+
+ encodeBuffer.encodeBoolValue(1);
+
+ encodeBuffer.encodeValue(setUnpackAlpha -> entries, 32, 9);
+
+ cachedSetUnpackAlpha -> entries = setUnpackAlpha -> entries;
+ }
+ else
+ {
+ encodeBuffer.encodeBoolValue(0);
+ }
+}
+
+void SetUnpackAlphaCompatStore::updateIdentity(DecodeBuffer &decodeBuffer, const Message *message,
+ ChannelCache *channelCache) const
+{
+ SetUnpackAlphaCompatMessage *setUnpackAlpha = (SetUnpackAlphaCompatMessage *) message;
+
+ ClientCache *clientCache = (ClientCache *) channelCache;
+
+ unsigned int value;
+
+ decodeBuffer.decodeCachedValue(setUnpackAlpha -> client, 8,
+ clientCache -> resourceCache);
+
+ decodeBuffer.decodeBoolValue(value);
+
+ if (value)
+ {
+ decodeBuffer.decodeValue(value, 32, 9);
+
+ setUnpackAlpha -> entries = value;
+
+ #ifdef DEBUG
+ *logofs << name() << ": Decoded value " << setUnpackAlpha -> entries
+ << " as entries field.\n" << logofs_flush;
+ #endif
+ }
+}