| -rw-r--r-- | noncore/comm/keypebble/krfbdecoder.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/noncore/comm/keypebble/krfbdecoder.cpp b/noncore/comm/keypebble/krfbdecoder.cpp index 69457e2..d61433f 100644 --- a/noncore/comm/keypebble/krfbdecoder.cpp +++ b/noncore/comm/keypebble/krfbdecoder.cpp @@ -1,789 +1,789 @@ #include "krfbconnection.h" #include "krfbserverinfo.h" #include "krfbdecoder.h" #include "krfbbuffer.h" /* OPIE */ #include <opie2/odebug.h> using namespace Opie::Core; /* QT */ #include <qpixmap.h> /* STD */ #include <assert.h> // // Endian stuff // -#ifndef OPIE_NO_DEBUG +//#ifndef OPIE_NO_DEBUG const int endianTest = 1; -#endif +//#endif #define Swap16IfLE(s) \ (*(char *)&endianTest ? ((((s) & 0xff) << 8) | (((s) >> 8) & 0xff)) : (s)) #define Swap32IfLE(l) \ (*(char *)&endianTest ? ((((l) & 0xff000000) >> 24) | \ (((l) & 0x00ff0000) >> 8) | \ (((l) & 0x0000ff00) << 8) | \ (((l) & 0x000000ff) << 24)) : (l)) // // The lengths of the messages we need to wait for // const int ServerInitLength = 24; const int UpdateHeaderLength = 4; const int RectHeaderLength = 12; const int RectChunkSize = 4; const int CopyRectPosLength = 4; const int ServerCutLenLength = 7; // // Client -> Server Message Identifiers // static CARD8 SetPixelFormatId = 0; //static CARD8 FixColourMapEntriesId = 1; // Not used static CARD8 SetEncodingsId = 2; static CARD8 UpdateRequestId = 3; static CARD8 KeyEventId = 4; static CARD8 PointerEventId = 5; static CARD8 ClientCutTextId = 6; // // Server -> Client Message Identifiers // static CARD8 UpdateId = 0; static CARD8 BellId = 2; static CARD8 ServerCutId = 3; // // Encoding identifiers // static CARD32 RawEncoding = Swap32IfLE( 0 ); static CARD32 CopyRectEncoding = Swap32IfLE(1 ); static CARD32 RreEncoding = Swap32IfLE( 2 ); static CARD32 CorreEncoding = Swap32IfLE( 4 ); static CARD32 HexTileEncoding = Swap32IfLE( 5 ); static struct { int keysym; int keycode; } keyMap[] = { { 0xff08, Qt::Key_Backspace }, { 0xff09, Qt::Key_Tab }, { 0xff0d, Qt::Key_Return }, { 0xff1b, Qt::Key_Escape }, { 0xff63, Qt::Key_Insert }, { 0xffff, Qt::Key_Delete }, { 0xff50, Qt::Key_Home }, { 0xff57, Qt::Key_End }, { 0xff55, Qt::Key_Prior }, { 0xff56, Qt::Key_Next }, { 0xff51, Qt::Key_Left }, { 0xff52, Qt::Key_Up }, { 0xff53, Qt::Key_Right }, { 0xff54, Qt::Key_Down }, { 0xffbe, Qt::Key_F1 }, { 0xffbf, Qt::Key_F2 }, { 0xffc0, Qt::Key_F3 }, { 0xffc1, Qt::Key_F4 }, { 0xffc2, Qt::Key_F5 }, { 0xffc3, Qt::Key_F6 }, { 0xffc4, Qt::Key_F7 }, { 0xffc5, Qt::Key_F8 }, { 0xffc6, Qt::Key_F9 }, { 0xffc7, Qt::Key_F10 }, { 0xffc8, Qt::Key_F11 }, { 0xffc9, Qt::Key_F12 }, { 0xffe1, Qt::Key_Shift }, { 0xffe2, Qt::Key_Shift }, { 0xffe3, Qt::Key_Control }, { 0xffe4, Qt::Key_Control }, { 0xffe7, Qt::Key_Meta }, { 0xffe8, Qt::Key_Meta }, { 0xffe9, Qt::Key_Alt }, { 0xffea, Qt::Key_Alt }, { 0, 0 } }; KRFBDecoder::KRFBDecoder( KRFBConnection *con ) : QObject( con, "RFB Decoder" ) { assert( con ); assert( con->state() == KRFBConnection::Connected ); this->con = con; this->buf = 0; this->info = 0; this->format = 0; this->buttonMask = 0; currentState = Idle; } KRFBDecoder::~KRFBDecoder() { if ( info ) delete info; if ( format ) delete format; } void KRFBDecoder::start() { sendClientInit(); } void KRFBDecoder::sendClientInit() { con->write( &( con->options()->shared ), 1 ); // Wait for server init owarn << "Waiting for server init" << oendl; static QString statusMsg = tr( "Waiting for server initialization..." ); emit status( statusMsg ); currentState = AwaitingServerInit; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotServerInit() ) ); con->waitForData( ServerInitLength ); } void KRFBDecoder::gotServerInit() { owarn << "Got server init" << oendl; disconnect( con, SIGNAL( gotEnoughData() ), this, SLOT( gotServerInit() ) ); if ( info ) delete info; info = new KRFBServerInfo; CHECK_PTR( info ); con->read( &(info->width), 2 ); info->width = Swap16IfLE( info->width ); con->read( &info->height, 2 ); info->height = Swap16IfLE( info->height ); con->read( &(info->bpp), 1 ); con->read( &(info->depth), 1 ); con->read( &(info->bigEndian), 1 ); con->read( &(info->trueColor), 1 ); con->read( &(info->redMax), 2 ); info->redMax = Swap16IfLE( info->redMax ); con->read( &(info->greenMax), 2 ); info->greenMax = Swap16IfLE( info->greenMax ); con->read( &(info->blueMax), 2 ); info->blueMax = Swap16IfLE( info->blueMax ); con->read( &(info->redShift), 1 ); con->read( &(info->greenShift), 1 ); con->read( &(info->blueShift), 1 ); con->read( info->padding, 3 ); con->read( &(info->nameLength), 4 ); info->nameLength = Swap32IfLE( info->nameLength ); owarn << "Width = " << info->width << ", Height = " << info->height << "" << oendl; qWarning( "Bpp = %d, Depth = %d, Big = %d, True = %d", info->bpp, info->depth, info->bigEndian, info->trueColor ); qWarning( "RedMax = %d, GreenMax = %d, BlueMax = %d", info->redMax, info->greenMax, info->blueMax ); qWarning( "RedShift = %d, GreenShift = %d, BlueShift = %d", info->redShift, info->greenShift,info-> blueShift ); buf->resize( info->width/con->options()->scaleFactor, info->height /con->options()->scaleFactor); // Wait for desktop name owarn << "Waiting for desktop name" << oendl; static QString statusMsg = tr( "Waiting for desktop name..." ); emit status( statusMsg ); currentState = AwaitingDesktopName; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotDesktopName() ) ); con->waitForData( info->nameLength ); } void KRFBDecoder::gotDesktopName() { assert( info ); assert( currentState == AwaitingDesktopName ); owarn << "Got desktop name" << oendl; disconnect( con, SIGNAL( gotEnoughData() ), this, SLOT( gotDesktopName() ) ); char *buf = new char[ info->nameLength + 1 ]; CHECK_PTR( buf ); con->read( buf, info->nameLength ); buf[ info->nameLength ] = '\0'; info->name = buf; owarn << "Desktop: " << info->name.latin1() << "" << oendl; delete buf; // Get the format we'll really use and tell the server decidePixelFormat(); sendPixelFormat(); sendAllowedEncodings(); currentState = Idle; QString msg; msg = tr( "Connected to %1" ); msg = msg.arg( info->name ); emit status( msg ); sendUpdateRequest( false ); } void KRFBDecoder::decidePixelFormat() { assert( info ); if ( format ) delete format; format = new KRFBPixelFormat; CHECK_PTR( format ); // What depth do we want? // // We'll use the minimum of the remote and local depths, UNLESS an // eight bit session has been specifically requested by the user. int screenDepth = QPixmap::defaultDepth(); int bestDepth = ( screenDepth > info->depth ) ? info->depth : screenDepth; int chosenDepth; if ( con->options()->colors256 ) chosenDepth = 8; else chosenDepth = bestDepth; qWarning( "Screen depth=%d, server depth=%d, best depth=%d, " \ "eight bit %d, chosenDepth=%d", screenDepth, info->depth, bestDepth, con->options()->colors256, chosenDepth ); format->depth = chosenDepth; // If we're using the servers native depth if ( chosenDepth == info->depth ) { // Use the servers native format format->bpp = info->bpp; // format->bigEndian = info->bigEndian; format->bigEndian = true; format->trueColor = info->trueColor; format->redMax = info->redMax; format->greenMax = info->greenMax; format->blueMax = info->blueMax; format->redShift = info->redShift; format->greenShift = info->greenShift; format->blueShift = info->blueShift; } else { if ( chosenDepth == 8 ) { format->bpp = 8; format->bigEndian = true; format->trueColor = true; format->redMax = 7; format->greenMax = 7; format->blueMax = 3; format->redShift = 0; format->greenShift = 3; format->blueShift = 6; } } format->redMax = Swap16IfLE( format->redMax ); format->greenMax = Swap16IfLE( format->greenMax ); format->blueMax = Swap16IfLE( format->blueMax ); } void KRFBDecoder::sendPixelFormat() { static char padding[3]; con->write( &SetPixelFormatId, 1 ); con->write( padding, 3 ); con->write( &(format->bpp), 1 ); con->write( &(format->depth), 1 ); con->write( &(format->bigEndian), 1 ); con->write( &(format->trueColor), 1 ); con->write( &(format->redMax), 2 ); con->write( &(format->greenMax), 2 ); con->write( &(format->blueMax), 2 ); con->write( &(format->redShift), 1 ); con->write( &(format->greenShift), 1 ); con->write( &(format->blueShift), 1 ); con->write( format->padding, 3 ); // Padding } void KRFBDecoder::sendAllowedEncodings() { static CARD8 padding[1]; con->write( &SetEncodingsId, 1 ); con->write( padding, 1 ); CARD16 noEncodings = con->options()->encodings(); noEncodings = Swap16IfLE( noEncodings ); con->write( &noEncodings, 2 ); if ( con->options()->corre ) con->write( &CorreEncoding, 4 ); if ( con->options()->hexTile ) con->write( &HexTileEncoding, 4 ); if ( con->options()->rre ) con->write( &RreEncoding, 4 ); if ( con->options()->copyrect ) con->write( &CopyRectEncoding, 4 ); // We always support this con->write( &RawEncoding, 4 ); } void KRFBDecoder::sendUpdateRequest( bool incremental ) { if ( currentState != Idle ) return; con->write( &UpdateRequestId, 1 ); con->write( &incremental, 1 ); static CARD16 x = 0, y = 0; static CARD16 w = Swap16IfLE( info->width ); static CARD16 h = Swap16IfLE( info->height ); con->write( &x, 2 ); con->write( &y, 2 ); con->write( &w, 2 ); con->write( &h, 2 ); // Now wait for the update currentState = AwaitingUpdate; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotUpdateHeader() ) ); con->waitForData( UpdateHeaderLength ); } void KRFBDecoder::gotUpdateHeader() { assert( currentState == AwaitingUpdate ); // owarn << "Got update header" << oendl; disconnect( con, SIGNAL( gotEnoughData() ), this, SLOT( gotUpdateHeader() ) ); CARD8 msgType; con->read( &msgType, 1 ); if ( msgType != UpdateId ) { // We might have a bell or server cut if ( msgType == ServerCutId ) { oldState = currentState; gotServerCut(); } else if ( msgType == BellId ) { oldState = currentState; gotBell(); } else { int msg = msgType; QString protocolError = tr( "Protocol Error: Message Id %1 was " "found when expecting an update " "message." ).arg( msg ); currentState = Error; emit error( protocolError ); } return; } CARD8 padding; con->read( &padding, 1 ); con->read( &noRects, 2 ); noRects = Swap16IfLE( noRects ); // owarn << "Expecting " << noRects << " rects" << oendl; // Now wait for the data currentState = AwaitingRectHeader; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotRectHeader() ) ); con->waitForData( RectHeaderLength ); } void KRFBDecoder::gotRectHeader() { assert( currentState == AwaitingRectHeader ); // owarn << "Got rect header" << oendl; disconnect( con, SIGNAL( gotEnoughData() ), this, SLOT( gotRectHeader() ) ); con->read( &x, 2 ); x = Swap16IfLE( x ); con->read( &y, 2 ); y = Swap16IfLE( y ); con->read( &w, 2 ); w = Swap16IfLE( w ); con->read( &h, 2 ); h = Swap16IfLE( h ); con->read( &encoding, 4 ); // CARD32 encodingLocal = Swap32IfLE( encoding ); // qWarning( "Rect: x=%d, y= %d, w=%d, h=%d, encoding=%ld", // x, y, w, h, encodingLocal ); // // Each encoding needs to be handled differently. Some require // waiting for more data, but others like a copyrect do not. // Our constants have already been byte swapped, so we use // the remote value as is. // if ( encoding == RawEncoding ) { // owarn << "Raw encoding" << oendl; handleRawRect(); } else if ( encoding == CopyRectEncoding ) { // owarn << "CopyRect encoding" << oendl; handleCopyRect(); } else if ( encoding == RreEncoding ) { owarn << "RRE encoding" << oendl; handleRRERect(); } else if ( encoding == CorreEncoding ) { owarn << "CoRRE encoding" << oendl; handleCoRRERect(); } else if ( encoding == HexTileEncoding ) { owarn << "HexTile encoding" << oendl; handleHexTileRect(); } else { int msg = Swap32IfLE( encoding ); QString protocolError = tr( "Protocol Error: An unknown encoding was " "used by the server %1" ).arg( msg ); currentState = Error; owarn << "Unknown encoding, " << msg << "" << oendl; emit error( protocolError ); return; } } // // Raw Encoding // void KRFBDecoder::handleRawRect() { // We need something a bit cleverer here to handle large // rectanges nicely. The chunking should be based on the // overall size (but has to be in complete lines). // owarn << "Handling a raw rect chunk" << oendl; // CARD32 lineCount = w * format->bpp / 8; if ( h > RectChunkSize ) { // if ( con->sock->size() / lineCount ) { // getRawRectChunk( con->sock->size() / lineCount ); // } // else { getRawRectChunk( RectChunkSize ); // } } else { getRawRectChunk( h ); } } void KRFBDecoder::getRawRectChunk( int lines ) { this->lines = lines; CARD32 count = lines * w * format->bpp / 8; // Wait for server init // owarn << "Waiting for raw rect chunk, " << count << "" << oendl; currentState = AwaitingRawRectChunk; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotRawRectChunk() ) ); con->waitForData( count ); } void KRFBDecoder::gotRawRectChunk() { assert( currentState == AwaitingRawRectChunk ); disconnect( con, SIGNAL( gotEnoughData() ), this, SLOT( gotRawRectChunk() ) ); // owarn << "Got raw rect chunk" << oendl; // // Read the rect data and copy it to the buffer. // // TODO: Replace this! int count = lines * w * format->bpp / 8; char *hack = new char[ count ]; con->read( hack, count ); buf->drawRawRectChunk( hack, x, y, w, lines ); delete hack; // /TODO: h = h - lines; y = y + lines; if ( h > 0 ) { handleRawRect(); } else { noRects--; // owarn << "There are " << noRects << " rects left" << oendl; if ( noRects ) { currentState = AwaitingRectHeader; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotRectHeader() ) ); con->waitForData( RectHeaderLength ); } else { // we are now ready for the next update - no need to wait for the timer currentState = Idle; sendUpdateRequest (1); } } } // // Copy Rectangle Encoding // void KRFBDecoder::handleCopyRect() { currentState = AwaitingCopyRectPos; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotCopyRectPos() ) ); con->waitForData( CopyRectPosLength ); } void KRFBDecoder::gotCopyRectPos() { disconnect( con, SIGNAL( gotEnoughData() ), this, SLOT( gotCopyRectPos() ) ); CARD16 srcX; CARD16 srcY; con->read( &srcX, 2 ); con->read( &srcY, 2 ); srcX = Swap16IfLE( srcX ); srcY = Swap16IfLE( srcY ); buf->copyRect( srcX, srcY, x, y, w, h ); noRects--; // owarn << "There are " << noRects << " rects left" << oendl; if ( noRects ) { currentState = AwaitingRectHeader; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotRectHeader() ) ); con->waitForData( RectHeaderLength ); } else currentState = Idle; } void KRFBDecoder::handleRRERect() { owarn << "RRE not implemented" << oendl; } void KRFBDecoder::handleCoRRERect() { owarn << "CoRRE not implemented" << oendl; } void KRFBDecoder::handleHexTileRect() { owarn << "HexTile not implemented" << oendl; } void KRFBDecoder::sendMouseEvent( QMouseEvent *e ) { // Deal with the buttons if ( e->type() != QEvent::MouseMove ) { buttonMask = 0; if ( e->type() == QEvent::MouseButtonPress ) { if ( e->button() & LeftButton ) buttonMask |= 0x01; if ( e->button() & MidButton ) buttonMask |= 0x04; if ( e->button() & RightButton ) buttonMask |= 0x02; } else if ( e->type() == QEvent::MouseButtonRelease ) { if ( e->button() & LeftButton ) buttonMask &= 0x06; if ( e->button() & MidButton ) buttonMask |= 0x03; if ( e->button() & RightButton ) buttonMask |= 0x05; } } // HACK: Scaling CARD16 x = Swap16IfLE( e->x() * con->options()->scaleFactor ); CARD16 y = Swap16IfLE( e->y() * con->options()->scaleFactor ); con->write( &PointerEventId, 1 ); con->write( &buttonMask, 1 ); con->write( &x, 2 ); con->write( &y, 2 ); } void KRFBDecoder::sendCutEvent( const QString &unicode ) { // // Warning: There is a bug in the RFB protocol because there is no way to find // out the codepage in use on the remote machine. This could be fixed by requiring // the remote server to use utf8 etc. but for now we have to assume they're the // same. I've reported this problem to the ORL guys, but they apparantly have no // immediate plans to fix the issue. :-( (rich) // CARD8 padding[3]; QCString text = unicode.local8Bit(); CARD32 length = text.length(); length = Swap32IfLE( length ); con->write( &ClientCutTextId, 1 ); con->write( &padding, 3 ); con->write( &length, 4 ); con->write( text.data(), length ); } void KRFBDecoder::gotServerCut() { owarn << "Got server cut" << oendl; currentState = AwaitingServerCutLength; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotServerCutLength() ) ); con->waitForData( ServerCutLenLength ); } void KRFBDecoder::gotServerCutLength() { assert( currentState = AwaitingServerCutLength ); disconnect( con, SIGNAL( gotEnoughData() ), this, SLOT( gotServerCutLength() ) ); CARD8 padding[3]; con->read( padding, 3 ); con->read( &serverCutTextLen, 4 ); serverCutTextLen = Swap32IfLE( serverCutTextLen ); currentState = AwaitingServerCutText; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotServerCutText() ) ); con->waitForData( serverCutTextLen ); } void KRFBDecoder::gotServerCutText() { assert( currentState = AwaitingServerCutText ); disconnect( con, SIGNAL( gotEnoughData() ), this, SLOT( gotServerCutText() ) ); // // Warning: There is a bug in the RFB protocol because there is no way to find // out the codepage in use on the remote machine. This could be fixed by requiring // the remote server to use utf8 etc. but for now we have to assume they're the // same. I've reported this problem to the ORL guys, but they apparantly have no // immediate plans to fix the issue. :-( (rich) // char *cutbuf = new char[ serverCutTextLen + 1 ]; CHECK_PTR( cutbuf ); con->read( cutbuf, serverCutTextLen ); cutbuf[ serverCutTextLen ] = '\0'; /* For some reason QApplication::clipboard()->setText() segfaults when called * from within keypebble's mass of signals and slots owarn << "Server cut: " << cutbuf << "" << oendl; QString cutText( cutbuf ); // DANGER!! qApp->clipboard()->setText( cutText ); */ delete cutbuf; // Now wait for the update (again) if ( oldState == AwaitingUpdate ) { currentState = AwaitingUpdate; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotUpdateHeader() ) ); con->waitForData( UpdateHeaderLength ); } else if ( oldState == Idle ) { currentState = Idle; } else { owarn << "Async handled in weird state" << oendl; currentState = oldState; }; } void KRFBDecoder::gotBell() { owarn << "Got server bell" << oendl; buf->soundBell(); // Now wait for the update (again) if ( oldState == AwaitingUpdate ) { currentState = AwaitingUpdate; connect( con, SIGNAL( gotEnoughData() ), SLOT( gotUpdateHeader() ) ); con->waitForData( UpdateHeaderLength ); } else if ( oldState == Idle ) { currentState = Idle; } else { owarn << "Async handled in weird state" << oendl; currentState = oldState; }; } void KRFBDecoder::sendKeyPressEvent( QKeyEvent *event ) { int key; key = toKeySym( event ); if ( key ) { key = Swap32IfLE( key ); CARD8 mask = true; CARD16 padding = 0; con->write( &KeyEventId, 1 ); con->write( &mask, 1 ); con->write( &padding, 2 ); con->write( &key, 4 ); } } void KRFBDecoder::sendKeyReleaseEvent( QKeyEvent *event ) { |