/**************************************************************************/ /* */ /* Copyright (c) 2001, 2011 NoMachine (http://www.nomachine.com) */ /* Copyright (c) 2008-2017 Oleksandr Shneyder */ /* Copyright (c) 2014-2022 Ulrich Sibiller */ /* Copyright (c) 2014-2019 Mihai Moldovan */ /* Copyright (c) 2011-2022 Mike Gabriel */ /* Copyright (c) 2015-2016 Qindel Group (http://www.qindel.com) */ /* */ /* NXCOMP, NX protocol compression and NX extensions to this software */ /* are copyright of the aforementioned persons and companies. */ /* */ /* Redistribution and use of the present software is allowed according */ /* to terms specified in the file LICENSE.nxcomp which comes in the */ /* source distribution. */ /* */ /* All rights reserved. */ /* */ /* NOTE: This software has received contributions from various other */ /* contributors, only the core maintainers and supporters are listed as */ /* copyright holders. Please contact us, if you feel you should be listed */ /* as copyright holder, as well. */ /* */ /**************************************************************************/ #ifdef HAVE_CONFIG_H #include "config.h" #endif // // Include the template for // this message class. // #include "RenderTrapezoids.h" // // Set the verbosity level. // #define PANIC #define WARNING #undef TEST #undef DEBUG #include MESSAGE_TAGS // // Message handling methods. // MESSAGE_BEGIN_ENCODE_SIZE { // // The trapezoid data is made up of a structure // containing a top and bottom coordinate in 4 // bytes format, plus two lines, each represent- // ed as four points in 4 bytes format. Thus // each trapezoid is 4 * 2 + (4 * 4) * 2 = 40 // bytes. Bytes are all padded to an long int, // so we don't need to clean the message. // ClientCache *clientCache = (ClientCache *) channelCache; #ifdef DEBUG *logofs << name() << ": Encoding value " << ((size - MESSAGE_OFFSET) >> 2) << ".\n" << logofs_flush; #endif encodeBuffer.encodeCachedValue((size - MESSAGE_OFFSET) >> 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 + (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 -> renderDstPictureCache); encodeBuffer.encodeCachedValue(GetULONG(buffer + 16, bigEndian), 32, clientCache -> renderFormatCache); encodeBuffer.encodeDiffCachedValue(GetUINT(buffer + 20, bigEndian), clientCache -> renderLastX, 16, clientCache -> renderXCache, 11); encodeBuffer.encodeDiffCachedValue(GetUINT(buffer + 22, bigEndian), clientCache -> renderLastY, 16, clientCache -> renderYCache, 11); #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 -> renderDstPictureCache); PutULONG(value, buffer + 12, bigEndian); decodeBuffer.decodeCachedValue(value, 32, clientCache -> renderFormatCache); PutULONG(value, buffer + 16, bigEndian); decodeBuffer.decodeDiffCachedValue(value, clientCache -> renderLastX, 16, clientCache -> renderXCache, 11); PutUINT(clientCache -> renderLastX, buffer + 20, bigEndian); decodeBuffer.decodeDiffCachedValue(value, clientCache -> renderLastY, 16, clientCache -> renderYCache, 11); PutUINT(clientCache -> renderLastY, buffer + 22, 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 { if (size > MESSAGE_OFFSET) { encodeLongData(encodeBuffer, buffer, MESSAGE_OFFSET, size, bigEndian, channelCache); } #ifdef TEST *logofs << name() << ": Encoded " << size - MESSAGE_OFFSET << " bytes of text data.\n" << logofs_flush; #endif } MESSAGE_END_ENCODE_DATA MESSAGE_BEGIN_DECODE_DATA { if (size > MESSAGE_OFFSET) { decodeLongData(decodeBuffer, buffer, MESSAGE_OFFSET, size, bigEndian, channelCache); } #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.trapezoids.type = *(buffer + 1); renderExtension -> data.trapezoids.op = *(buffer + 4); renderExtension -> data.trapezoids.src_id = GetULONG(buffer + 8, bigEndian); renderExtension -> data.trapezoids.dst_id = GetULONG(buffer + 12, bigEndian); renderExtension -> data.trapezoids.format = GetULONG(buffer + 16, bigEndian); renderExtension -> data.trapezoids.src_x = GetUINT(buffer + 20, bigEndian); renderExtension -> data.trapezoids.src_y = GetUINT(buffer + 22, bigEndian); #ifdef TEST *logofs << name() << ": Parsed identity. Type is " << (unsigned int) renderExtension -> data.trapezoids.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.trapezoids.type; *(buffer + 4) = renderExtension -> data.trapezoids.op; PutULONG(renderExtension -> data.trapezoids.src_id, buffer + 8, bigEndian); PutULONG(renderExtension -> data.trapezoids.dst_id, buffer + 12, bigEndian); PutULONG(renderExtension -> data.trapezoids.format, buffer + 16, bigEndian); PutUINT(renderExtension -> data.trapezoids.src_x, buffer + 20, bigEndian); PutUINT(renderExtension -> data.trapezoids.src_y, buffer + 22, bigEndian); #ifdef TEST *logofs << name() << ": Unparsed identity. Type is " << (unsigned int) renderExtension -> data.trapezoids.type << " size is " << renderExtension -> size_ << " identity size " << renderExtension -> i_size_ << ".\n" << logofs_flush; #endif } MESSAGE_END_UNPARSE_IDENTITY MESSAGE_BEGIN_IDENTITY_CHECKSUM { // // Include minor opcode, size and the // operator in the identity. // md5_append(md5_state, buffer + 1, 4); // // Also include the format but not the // x and y source. // md5_append(md5_state, buffer + 16, 4); } MESSAGE_END_IDENTITY_CHECKSUM MESSAGE_BEGIN_ENCODE_UPDATE { RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message; RenderExtensionMessage *cachedRenderExtension = (RenderExtensionMessage *) cachedMessage; ClientCache *clientCache = (ClientCache *) channelCache; encodeBuffer.encodeXidValue(renderExtension -> data.trapezoids.src_id, clientCache -> renderSrcPictureCache); cachedRenderExtension -> data.trapezoids.src_id = renderExtension -> data.trapezoids.src_id; encodeBuffer.encodeXidValue(renderExtension -> data.trapezoids.dst_id, clientCache -> renderDstPictureCache); cachedRenderExtension -> data.trapezoids.dst_id = renderExtension -> data.trapezoids.dst_id; // // The source x and y coordinates are // encoded as differerences in respect // to the previous cached value. // unsigned int value; unsigned int previous; value = renderExtension -> data.trapezoids.src_x; previous = cachedRenderExtension -> data.trapezoids.src_x; encodeBuffer.encodeDiffCachedValue(value, previous, 16, clientCache -> renderXCache, 11); cachedRenderExtension -> data.trapezoids.src_x = value; value = renderExtension -> data.trapezoids.src_y; previous = cachedRenderExtension -> data.trapezoids.src_y; encodeBuffer.encodeDiffCachedValue(value, previous, 16, clientCache -> renderYCache, 11); cachedRenderExtension -> data.trapezoids.src_y = value; #ifdef TEST *logofs << name() << ": Encoded update. Type is " << (unsigned int) renderExtension -> data.trapezoids.type << " size is " << renderExtension -> size_ << " source x " << renderExtension -> data.trapezoids.src_x << " y " << renderExtension -> data.trapezoids.src_y << ".\n" << logofs_flush; #endif } MESSAGE_END_ENCODE_UPDATE MESSAGE_BEGIN_DECODE_UPDATE { RenderExtensionMessage *renderExtension = (RenderExtensionMessage *) message; ClientCache *clientCache = (ClientCache *) channelCache; decodeBuffer.decodeXidValue(renderExtension -> data.trapezoids.src_id, clientCache -> renderSrcPictureCache); decodeBuffer.decodeXidValue(renderExtension -> data.trapezoids.dst_id, clientCache -> renderDstPictureCache); unsigned int value; unsigned int previous; previous = renderExtension -> data.trapezoids.src_x; decodeBuffer.decodeDiffCachedValue(value, previous, 16, clientCache -> renderXCache, 11); renderExtension -> data.trapezoids.src_x = value; previous = renderExtension -> data.trapezoids.src_y; decodeBuffer.decodeDiffCachedValue(value, previous, 16, clientCache -> renderYCache, 11); renderExtension -> data.trapezoids.src_y = value; #ifdef TEST *logofs << name() << ": Decoded update. Type is " << (unsigned int) renderExtension -> data.trapezoids.type << " size is " << renderExtension -> size_ << " source x " << renderExtension -> data.trapezoids.src_x << " y " << renderExtension -> data.trapezoids.src_y << ".\n" << logofs_flush; #endif } MESSAGE_END_DECODE_UPDATE