aboutsummaryrefslogtreecommitdiff
path: root/nxcomp/RenderCompositeGlyphsCompat.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'nxcomp/RenderCompositeGlyphsCompat.cpp')
-rw-r--r--nxcomp/RenderCompositeGlyphsCompat.cpp602
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