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author | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2011-11-19 15:59:16 +0100 |
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committer | Mike Gabriel <mike.gabriel@das-netzwerkteam.de> | 2011-11-19 15:59:16 +0100 |
commit | a48361b11a5abb5a345dac5ec83a8f56c4d50b74 (patch) | |
tree | a16fb870a072450bb45ee09ac4df9887bfa7f98e /nxcomp/RenderCompositeGlyphsCompat.cpp | |
parent | 9997e13bb583de4012914006c7507839a4e11227 (diff) | |
parent | 232dfc41d41390bfffa75ec2ed065c109fa03a0e (diff) | |
download | nx-libs-a48361b11a5abb5a345dac5ec83a8f56c4d50b74.tar.gz nx-libs-a48361b11a5abb5a345dac5ec83a8f56c4d50b74.tar.bz2 nx-libs-a48361b11a5abb5a345dac5ec83a8f56c4d50b74.zip |
Merge branch 'nxcomp'
Diffstat (limited to 'nxcomp/RenderCompositeGlyphsCompat.cpp')
-rw-r--r-- | nxcomp/RenderCompositeGlyphsCompat.cpp | 602 |
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 |