1 files changed, 602 insertions, 0 deletions
diff --git a/nxcomp/RenderCompositeGlyphsCompat.cpp b/nxcomp/RenderCompositeGlyphsCompat.cpp
new file mode 100644
index 000000000..3fe10fafb
--- /dev/null
+++ b/nxcomp/RenderCompositeGlyphsCompat.cpp
@@ -0,0 +1,602 @@
+/**************************************************************************/
+/*                                                                        */
+/* 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 the template for
+// this message class.
+//
+
+#include "RenderCompositeGlyphsCompat.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;
+
+  //
+  // The offset points 8 bytes after
+  // the beginning of the data part.
+  //
+
+  #ifdef DEBUG
+  *logofs << name() << ": Encoding value "
+          << ((size - (MESSAGE_OFFSET - 8)) >> 2)
+          << ".\n" << logofs_flush;
+  #endif
+
+  encodeBuffer.encodeCachedValue((size - (MESSAGE_OFFSET - 8)) >> 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 - 8) + (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.encodeCachedValue(*(buffer + 4), 8,
+                     clientCache -> renderOpCache);
+
+  encodeBuffer.encodeXidValue(GetULONG(buffer + 8, bigEndian),
+                     clientCache -> renderSrcPictureCache);
+
+  encodeBuffer.encodeXidValue(GetULONG(buffer + 12, bigEndian),
+                     clientCache -> renderSrcPictureCache);
+
+  encodeBuffer.encodeCachedValue(GetULONG(buffer + 16, bigEndian), 32,
+                     clientCache -> renderFormatCache);
+
+  encodeBuffer.encodeCachedValue(GetULONG(buffer + 20, bigEndian), 29,
+                     clientCache -> renderGlyphSetCache);
+
+  encodeBuffer.encodeDiffCachedValue(GetUINT(buffer + 24, bigEndian),
+                     clientCache -> renderLastX, 16,
+                         clientCache -> renderXCache, 11);
+
+  encodeBuffer.encodeDiffCachedValue(GetUINT(buffer + 26, bigEndian),
+                     clientCache -> renderLastY, 16,
+                         clientCache -> renderYCache, 11);
+
+  //
+  // Try to save as many bits as possible by
+  // encoding the information about the first
+  // set of glyphs.
+  //
+
+  if (size >= MESSAGE_OFFSET)
+  {
+    unsigned int numGlyphs = *(buffer + 28);
+
+    encodeBuffer.encodeCachedValue(numGlyphs, 8,
+                       clientCache -> renderNumGlyphsCache);
+
+    encodeBuffer.encodeCachedValue(GetUINT(buffer + 32, bigEndian), 16,
+                       clientCache -> renderWidthCache, 11);
+
+    encodeBuffer.encodeCachedValue(GetUINT(buffer + 34, bigEndian), 16,
+                       clientCache -> renderHeightCache, 11);
+
+    //
+    // Only manage the first set of glyphs,
+    // that is in most cases the only one.
+    //
+
+    switch (*(buffer + 1))
+    {
+      case X_RenderCompositeGlyphs8:
+      {
+        if (numGlyphs & 0x03)
+        {
+          memset((unsigned char *) buffer + MESSAGE_OFFSET + numGlyphs, '\0',
+                     RoundUp4(numGlyphs) - numGlyphs);
+        }
+
+        break;
+      }
+      case X_RenderCompositeGlyphs16:
+      {
+        if (numGlyphs & 0x01)
+        {
+          memset((unsigned char *) buffer + MESSAGE_OFFSET + (numGlyphs * 2), '\0',
+                     RoundUp4(numGlyphs * 2) - numGlyphs * 2);
+        }
+
+        break;
+      }
+    }
+
+    #ifdef TEST
+    if (*(buffer + (size - 1)) != '\0')
+    {
+      *logofs << name() << ": WARNING! Final byte is non-zero with size "
+              << size << " and " << (unsigned int) *(buffer + 28)
+              << " glyphs.\n" << logofs_flush;
+    }
+    else
+    {
+      *logofs << name() << ": Final byte is zero with size "
+              << size << " and " << (unsigned int) *(buffer + 28)
+              << " glyphs.\n" << logofs_flush;
+    }
+    #endif
+  }
+
+  #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.decodeCachedValue(*(buffer + 4), 8,
+                     clientCache -> renderOpCache);
+
+  decodeBuffer.decodeXidValue(value,
+                     clientCache -> renderSrcPictureCache);
+
+  PutULONG(value, buffer + 8, bigEndian);
+
+  decodeBuffer.decodeXidValue(value,
+                     clientCache -> renderSrcPictureCache);
+
+  PutULONG(value, buffer + 12, bigEndian);
+
+  decodeBuffer.decodeCachedValue(value, 32,
+                     clientCache -> renderFormatCache);
+
+  PutULONG(value, buffer + 16, bigEndian);
+
+  decodeBuffer.decodeCachedValue(value, 29,
+                     clientCache -> renderGlyphSetCache);
+
+  PutULONG(value, buffer + 20, bigEndian);
+
+  decodeBuffer.decodeDiffCachedValue(value,
+                     clientCache -> renderLastX, 16,
+                         clientCache -> renderXCache, 11);
+
+  PutUINT(clientCache -> renderLastX, buffer + 24, bigEndian);
+
+  decodeBuffer.decodeDiffCachedValue(value,
+                     clientCache -> renderLastY, 16,
+                         clientCache -> renderYCache, 11);
+
+  PutUINT(clientCache -> renderLastY, buffer + 26, bigEndian);
+
+  if (size >= MESSAGE_OFFSET)
+  {
+    decodeBuffer.decodeCachedValue(value, 8,
+                       clientCache -> renderNumGlyphsCache);
+
+    *(buffer + 28) = value;
+
+    decodeBuffer.decodeCachedValue(value, 16,
+                       clientCache -> renderWidthCache, 11);
+
+    PutUINT(value, buffer + 32, bigEndian);
+
+    decodeBuffer.decodeCachedValue(value, 16,
+                       clientCache -> renderHeightCache, 11);
+
+    PutUINT(value, buffer + 34, 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
+{
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  unsigned int value;
+
+  switch (*(buffer + 1))
+  {
+    case X_RenderCompositeGlyphs8:
+    {
+      clientCache -> renderTextCompressor.reset();
+
+      const unsigned char *next = buffer + MESSAGE_OFFSET;
+
+      for (unsigned int i = MESSAGE_OFFSET; i < size; i++)
+      {
+        #ifdef DEBUG
+        *logofs << name() << ": Encoding char with i = " << i
+                << ".\n" << logofs_flush;
+        #endif
+
+        clientCache -> renderTextCompressor.
+              encodeChar(*next++, encodeBuffer);
+      }
+
+      break;
+    }
+    case X_RenderCompositeGlyphs16:
+    {
+      for (unsigned int i = MESSAGE_OFFSET; i < size; i += 2)
+      {
+        value = GetUINT(buffer + i, bigEndian);
+
+        #ifdef DEBUG
+        *logofs << name() << ": Encoding short with i = " << i
+                << ".\n" << logofs_flush;
+        #endif
+
+        encodeBuffer.encodeCachedValue(value, 16,
+                           *clientCache -> renderCompositeGlyphsDataCache[clientCache ->
+                                renderLastCompositeGlyphsData]);
+
+        clientCache -> renderLastCompositeGlyphsData = value % 16;
+      }
+
+      break;
+    }
+    default:
+    {
+      for (unsigned int i = MESSAGE_OFFSET; i < size; i += 4)
+      {
+        value = GetULONG(buffer + i, bigEndian);
+
+        #ifdef DEBUG
+        *logofs << name() << ": Encoding long with i = " << i
+                << ".\n" << logofs_flush;
+        #endif
+
+        encodeBuffer.encodeCachedValue(value, 32,
+                           *clientCache -> renderCompositeGlyphsDataCache[clientCache ->
+                                renderLastCompositeGlyphsData]);
+
+        clientCache -> renderLastCompositeGlyphsData = value % 16;
+      }
+
+      break;
+    }
+  }
+
+  #ifdef TEST
+  *logofs << name() << ": Encoded " << size - MESSAGE_OFFSET
+          << " bytes of data.\n" << logofs_flush;
+  #endif
+}
+MESSAGE_END_ENCODE_DATA
+
+MESSAGE_BEGIN_DECODE_DATA
+{
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  unsigned int value;
+
+  switch (*(buffer + 1))
+  {
+    case X_RenderCompositeGlyphs8:
+    {
+      clientCache -> renderTextCompressor.reset();
+
+      unsigned char *next = buffer + MESSAGE_OFFSET;
+
+      for (unsigned int i = MESSAGE_OFFSET; i < size; i++)
+      {
+        #ifdef DEBUG
+        *logofs << name() << ": Decoding char with i = " << i
+                << ".\n" << logofs_flush;
+        #endif
+
+        *next++ = clientCache -> renderTextCompressor.
+                        decodeChar(decodeBuffer);
+      }
+
+      break;
+    }
+    case X_RenderCompositeGlyphs16:
+    {
+      for (unsigned int i = MESSAGE_OFFSET; i < size; i += 2)
+      {
+        #ifdef DEBUG
+        *logofs << name() << ": Decoding short with i = " << i
+                << ".\n" << logofs_flush;
+        #endif
+
+        decodeBuffer.decodeCachedValue(value, 16,
+                           *clientCache -> renderCompositeGlyphsDataCache[clientCache ->
+                                  renderLastCompositeGlyphsData]);
+
+        PutUINT(value, buffer + i, bigEndian);
+
+        clientCache -> renderLastCompositeGlyphsData = value % 16;
+      }
+
+      break;
+    }
+    default:
+    {
+      for (unsigned int i = MESSAGE_OFFSET; i < size; i += 4)
+      {
+        #ifdef DEBUG
+        *logofs << name() << ": Decoding long with i = " << i
+                << ".\n" << logofs_flush;
+        #endif
+
+        decodeBuffer.decodeCachedValue(value, 32,
+                           *clientCache -> renderCompositeGlyphsDataCache[clientCache ->
+                                  renderLastCompositeGlyphsData]);
+
+        PutULONG(value, buffer + i, bigEndian);
+
+        clientCache -> renderLastCompositeGlyphsData = value % 16;
+      }
+
+      break;
+    }
+  }
+
+  #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.composite_glyphs_compat.type = *(buffer + 1);
+  renderExtension -> data.composite_glyphs_compat.op   = *(buffer + 4);
+
+  renderExtension -> data.composite_glyphs_compat.src_id = GetULONG(buffer + 8,  bigEndian);
+  renderExtension -> data.composite_glyphs_compat.dst_id = GetULONG(buffer + 12, bigEndian);
+
+  renderExtension -> data.composite_glyphs_compat.format = GetULONG(buffer + 16, bigEndian);
+  renderExtension -> data.composite_glyphs_compat.set_id = GetULONG(buffer + 20, bigEndian);
+
+  renderExtension -> data.composite_glyphs_compat.src_x = GetUINT(buffer + 24, bigEndian);
+  renderExtension -> data.composite_glyphs_compat.src_y = GetUINT(buffer + 26, bigEndian);
+
+  if (size >= MESSAGE_OFFSET)
+  {
+    renderExtension -> data.composite_glyphs_compat.num_elm = *(buffer + 28);
+
+    renderExtension -> data.composite_glyphs_compat.delta_x = GetUINT(buffer + 32, bigEndian);
+    renderExtension -> data.composite_glyphs_compat.delta_y = GetUINT(buffer + 34, bigEndian);
+  }
+
+  #ifdef TEST
+  *logofs << name() << ": Parsed identity. Type is "
+          << (unsigned int) renderExtension -> data.composite_glyphs_compat.type
+          << " size is " << renderExtension -> size_ << " identity size "
+          << renderExtension -> i_size_ << ".\n"
+          << logofs_flush;
+  #endif
+}
+MESSAGE_END_PARSE_IDENTITY
+
+MESSAGE_BEGIN_UNPARSE_IDENTITY
+{
+  RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message;
+
+  *(buffer + 1) = renderExtension -> data.composite_glyphs_compat.type;
+  *(buffer + 4) = renderExtension -> data.composite_glyphs_compat.op;
+
+  PutULONG(renderExtension -> data.composite_glyphs_compat.src_id, buffer + 8,  bigEndian);
+  PutULONG(renderExtension -> data.composite_glyphs_compat.dst_id, buffer + 12, bigEndian);
+
+  PutULONG(renderExtension -> data.composite_glyphs_compat.format, buffer + 16, bigEndian);
+  PutULONG(renderExtension -> data.composite_glyphs_compat.set_id, buffer + 20, bigEndian);
+
+  PutUINT(renderExtension -> data.composite_glyphs_compat.src_x, buffer + 24, bigEndian);
+  PutUINT(renderExtension -> data.composite_glyphs_compat.src_y, buffer + 26, bigEndian);
+
+  if (size >= MESSAGE_OFFSET)
+  {
+    *(buffer + 28) = renderExtension -> data.composite_glyphs_compat.num_elm;
+
+    PutUINT(renderExtension -> data.composite_glyphs_compat.delta_x, buffer + 32, bigEndian);
+    PutUINT(renderExtension -> data.composite_glyphs_compat.delta_y, buffer + 34, bigEndian);
+
+    #ifdef DEBUG
+    *logofs << name() << ": Len is " << (unsigned int) *(buffer + 28)
+            << " delta X is " << GetUINT(buffer + 32, bigEndian)
+            << " delta Y is " << GetUINT(buffer + 34, bigEndian)
+            << ".\n" << logofs_flush;
+
+    *logofs << name() << ": Pad 1 is " << (unsigned int) *(buffer + 29)
+            << " pad 2 and 3 are " << GetUINT(buffer + 30, bigEndian)
+            << ".\n" << logofs_flush;
+    #endif
+  }
+
+  #ifdef TEST
+  *logofs << name() << ": Unparsed identity. Type is "
+          << (unsigned int) renderExtension -> data.composite_glyphs_compat.type
+          << " size is " << renderExtension -> size_  << " identity size "
+          << renderExtension -> i_size_ << ".\n" << ".\n"
+          << logofs_flush;
+  #endif
+}
+MESSAGE_END_UNPARSE_IDENTITY
+
+MESSAGE_BEGIN_IDENTITY_CHECKSUM
+{
+  //
+  // Include minor opcode, size and
+  // the composite operator in the
+  // identity.
+  //
+
+  md5_append(md5_state, buffer + 1, 4);
+
+  //
+  // Include the format and the source
+  // x and y fields.
+  //
+
+  md5_append(md5_state, buffer + 16, 4);
+  md5_append(md5_state, buffer + 24, 4);
+
+  //
+  // Include the number of glyphs.
+  //
+
+  if (size >= MESSAGE_OFFSET)
+  {
+    md5_append(md5_state, buffer + 28, 1);
+  }
+}
+MESSAGE_END_IDENTITY_CHECKSUM
+
+MESSAGE_BEGIN_ENCODE_UPDATE
+{
+  RenderExtensionMessage *renderExtension       = (RenderExtensionMessage *) message;
+  RenderExtensionMessage *cachedRenderExtension = (RenderExtensionMessage *) cachedMessage;
+
+  ClientCache *clientCache = (ClientCache *) channelCache;
+
+  encodeBuffer.encodeXidValue(renderExtension -> data.composite_glyphs_compat.src_id,
+                     clientCache -> renderSrcPictureCache);
+
+  cachedRenderExtension -> data.composite_glyphs_compat.src_id =
+              renderExtension -> data.composite_glyphs_compat.src_id;
+
+  encodeBuffer.encodeXidValue(renderExtension -> data.composite_glyphs_compat.dst_id,
+                     clientCache -> renderSrcPictureCache);
+
+  cachedRenderExtension -> data.composite_glyphs_compat.dst_id =
+              renderExtension -> data.composite_glyphs_compat.dst_id;
+
+  encodeBuffer.encodeCachedValue(renderExtension -> data.composite_glyphs_compat.set_id, 29,
+                     clientCache -> renderGlyphSetCache);
+
+  cachedRenderExtension -> data.composite_glyphs_compat.set_id =
+              renderExtension -> data.composite_glyphs_compat.set_id;
+
+  if (renderExtension -> size_ >= MESSAGE_OFFSET)
+  {
+    encodeBuffer.encodeCachedValue(renderExtension -> data.composite_glyphs_compat.delta_x, 16,
+                       clientCache -> renderWidthCache, 11);
+
+    cachedRenderExtension -> data.composite_glyphs_compat.delta_x =
+                renderExtension -> data.composite_glyphs_compat.delta_x;
+
+    encodeBuffer.encodeCachedValue(renderExtension -> data.composite_glyphs_compat.delta_y, 16,
+                       clientCache -> renderHeightCache, 11);
+
+    cachedRenderExtension -> data.composite_glyphs_compat.delta_y =
+                renderExtension -> data.composite_glyphs_compat.delta_y;
+  }
+
+  #ifdef TEST
+  *logofs << name() << ": Encoded update. Type is "
+          << (unsigned int) renderExtension -> data.composite_glyphs_compat.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.composite_glyphs_compat.src_id,
+                     clientCache -> renderSrcPictureCache);
+
+  decodeBuffer.decodeXidValue(renderExtension -> data.composite_glyphs_compat.dst_id,
+                     clientCache -> renderSrcPictureCache);
+
+  decodeBuffer.decodeCachedValue(renderExtension -> data.composite_glyphs_compat.set_id, 29,
+                     clientCache -> renderGlyphSetCache);
+
+  if (renderExtension -> size_ >= MESSAGE_OFFSET)
+  {
+    unsigned int value;
+
+    decodeBuffer.decodeCachedValue(value, 16,
+                       clientCache -> renderWidthCache, 11);
+
+    renderExtension -> data.composite_glyphs_compat.delta_x = value;
+
+    decodeBuffer.decodeCachedValue(value, 16,
+                       clientCache -> renderHeightCache, 11);
+
+    renderExtension -> data.composite_glyphs_compat.delta_y = value;
+  }
+
+  #ifdef TEST
+  *logofs << name() << ": Decoded update. Type is "
+          << (unsigned int) renderExtension -> data.composite_glyphs_compat.type
+          << " size is " << renderExtension -> size_ << ".\n"
+          << logofs_flush;
+  #endif
+}
+MESSAGE_END_DECODE_UPDATE