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-rw-r--r--nxcomp/ChannelCache.h7
-rw-r--r--nxcomp/ClientCache.cpp2
-rw-r--r--nxcomp/ClientCache.h5
-rw-r--r--nxcomp/Makefile.in1
-rw-r--r--nxcomp/ServerCache.h2
-rw-r--r--nxcomp/TextCompressor.cpp77
-rw-r--r--nxcomp/TextCompressor.h49
7 files changed, 0 insertions, 143 deletions
diff --git a/nxcomp/ChannelCache.h b/nxcomp/ChannelCache.h
index 7b94893b6..c810a0b96 100644
--- a/nxcomp/ChannelCache.h
+++ b/nxcomp/ChannelCache.h
@@ -19,13 +19,6 @@
#define ChannelCache_H
//
-// Elements in array of caches used in TextCompressor.
-//
-
-const unsigned int CLIENT_TEXT_CACHE_SIZE = 9999;
-const unsigned int SERVER_TEXT_CACHE_SIZE = 9999;
-
-//
// Sizes of optional fields for ConfigureWindow
// request.
//
diff --git a/nxcomp/ClientCache.cpp b/nxcomp/ClientCache.cpp
index ec37c69f6..49dc4ece5 100644
--- a/nxcomp/ClientCache.cpp
+++ b/nxcomp/ClientCache.cpp
@@ -100,8 +100,6 @@ ClientCache::ClientCache() :
renderLastId(0),
- renderTextCompressor(textCache, CLIENT_TEXT_CACHE_SIZE),
-
renderGlyphXCache(16), renderGlyphYCache(16),
renderGlyphX(0), renderGlyphY(0),
diff --git a/nxcomp/ClientCache.h b/nxcomp/ClientCache.h
index 3fa59f642..9ac263c71 100644
--- a/nxcomp/ClientCache.h
+++ b/nxcomp/ClientCache.h
@@ -26,8 +26,6 @@
#include "XidCache.h"
#include "FreeCache.h"
-#include "TextCompressor.h"
-
#include "ChannelCache.h"
class ClientCache : public ChannelCache
@@ -61,7 +59,6 @@ class ClientCache : public ChannelCache
// General-purpose caches.
//
- CharCache textCache[CLIENT_TEXT_CACHE_SIZE];
IntCache cursorCache;
IntCache colormapCache;
IntCache visualCache;
@@ -383,8 +380,6 @@ class ClientCache : public ChannelCache
IntCache *renderDataCache[16];
- TextCompressor renderTextCompressor;
-
IntCache renderGlyphXCache;
IntCache renderGlyphYCache;
diff --git a/nxcomp/Makefile.in b/nxcomp/Makefile.in
index 93b644079..c2cdceead 100644
--- a/nxcomp/Makefile.in
+++ b/nxcomp/Makefile.in
@@ -165,7 +165,6 @@ CXXSRC = Loop.cpp \
BlockCache.cpp \
BlockCacheSet.cpp \
StaticCompressor.cpp \
- TextCompressor.cpp \
Unpack.cpp \
Alpha.cpp \
Colormap.cpp \
diff --git a/nxcomp/ServerCache.h b/nxcomp/ServerCache.h
index 0968e235c..2287501bf 100644
--- a/nxcomp/ServerCache.h
+++ b/nxcomp/ServerCache.h
@@ -23,7 +23,6 @@
#include "IntCache.h"
#include "CharCache.h"
#include "OpcodeCache.h"
-#include "TextCompressor.h"
#include "BlockCache.h"
#include "BlockCacheSet.h"
@@ -47,7 +46,6 @@ class ServerCache : public ChannelCache
// General-purpose caches.
//
- CharCache textCache[SERVER_TEXT_CACHE_SIZE];
IntCache replySequenceCache;
IntCache eventSequenceCache;
unsigned int lastTimestamp;
diff --git a/nxcomp/TextCompressor.cpp b/nxcomp/TextCompressor.cpp
deleted file mode 100644
index 16131222c..000000000
--- a/nxcomp/TextCompressor.cpp
+++ /dev/null
@@ -1,77 +0,0 @@
-/**************************************************************************/
-/* */
-/* 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 "TextCompressor.h"
-
-#include "EncodeBuffer.h"
-#include "DecodeBuffer.h"
-
-//
-// The compression obtained by this class is
-// very poor. In newer versions the text is
-// simply appended to the encode buffer and
-// compressed by leveraging the final stream
-// compression.
-//
-
-void
-TextCompressor::encodeChar(unsigned char ch, EncodeBuffer& encodeBuffer)
-{
- // encode each successive character of text using
- // a predictive model where most of the last 3 characters
- // (low order 7 bits of the previous character, plus the
- // low order 5 bits of the character before that, plus
- // the low order 3 bits of the character before that)
- // are used to find the right cache...
-
- CharCache& cache = cache_[key_ % cacheSize_];
- if ((key_ >= 128) && (cache.getSize() == 0))
- {
- // 3rd-order model doesn't have any statistics yet,
- // so use the 1st-order one instead
- CharCache& cache2 = cache_[(key_ & 0x7f) % cacheSize_];
- encodeBuffer.encodeCachedValue((unsigned int) ch, 8, cache2);
- cache.insert(ch);
- }
- else
- {
- encodeBuffer.encodeCachedValue((unsigned int) ch, 8, cache);
- }
-
- key_ = (((key_ & 0x1f) << 7) | ((key_ & 0x380) << 5) | (ch & 0x7f));
-}
-
-
-unsigned char
-TextCompressor::decodeChar(DecodeBuffer& decodeBuffer)
-{
- unsigned char nextChar;
- CharCache& cache = cache_[key_ % cacheSize_];
- if ((key_ >= 128) && (cache.getSize() == 0))
- {
- CharCache& cache2 = cache_[(key_ & 0x7f) % cacheSize_];
- decodeBuffer.decodeCachedValue(nextChar, 8, cache2);
- cache.insert(nextChar);
- }
- else
- {
- decodeBuffer.decodeCachedValue(nextChar, 8, cache);
- }
-
- key_ = (((key_ & 0x1f) << 7) | ((key_ & 0x380) << 5) | (nextChar & 0x7f));
- return nextChar;
-}
diff --git a/nxcomp/TextCompressor.h b/nxcomp/TextCompressor.h
deleted file mode 100644
index b373b98b8..000000000
--- a/nxcomp/TextCompressor.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/**************************************************************************/
-/* */
-/* 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. */
-/* */
-/**************************************************************************/
-
-#ifndef TextCompressor_H
-#define TextCompressor_H
-
-#include "CharCache.h"
-
-class EncodeBuffer;
-class DecodeBuffer;
-
-class TextCompressor
-{
- public:
- TextCompressor(CharCache* cache, unsigned int cacheSize):
- cache_(cache),
- cacheSize_(cacheSize),
- key_(0)
- {
- }
-
- void encodeChar(unsigned char ch, EncodeBuffer &);
- unsigned char decodeChar(DecodeBuffer &);
- void reset(unsigned int newKey = 0)
- {
- key_ = newKey;
- }
-
- private:
- CharCache* cache_;
- unsigned int cacheSize_;
- unsigned int key_;
-};
-
-#endif /* TextCompressor_H */
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