--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/plugins/gfxdrivers/vnc/qscreenvnc_qws.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,2301 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qscreenvnc_qws.h"
+
+#ifndef QT_NO_QWS_VNC
+
+#include "qscreenvnc_p.h"
+#include "qwindowsystem_qws.h"
+#include "qwsdisplay_qws.h"
+#include "qscreendriverfactory_qws.h"
+#include <QtCore/qtimer.h>
+#include <QtCore/qregexp.h>
+#include <QtGui/qwidget.h>
+#include <QtGui/qpolygon.h>
+#include <QtGui/qpainter.h>
+#include <qdebug.h>
+#include <private/qwindowsurface_qws_p.h>
+#include <private/qwssignalhandler_p.h>
+#include <private/qwidget_p.h>
+#include <private/qdrawhelper_p.h>
+
+#include <stdlib.h>
+
+QT_BEGIN_NAMESPACE
+
+//#define QT_QWS_VNC_DEBUG
+
+extern QString qws_qtePipeFilename();
+
+#ifndef QT_NO_QWS_CURSOR
+
+QVNCCursor::QVNCCursor(QVNCScreen *s)
+ : screen(s)
+{
+ if (qt_screencursor)
+ setScreenCursor(qt_screencursor);
+ else
+ hwaccel = true;
+}
+
+QVNCCursor::~QVNCCursor()
+{
+ if (screenCursor())
+ qt_screencursor = screenCursor();
+}
+
+void QVNCCursor::setDirty(const QRect &r) const
+{
+ screen->d_ptr->setDirty(r, true);
+}
+
+void QVNCCursor::hide()
+{
+ QProxyScreenCursor::hide();
+ if (enable)
+ setDirty(boundingRect());
+}
+
+void QVNCCursor::show()
+{
+ QProxyScreenCursor::show();
+ if (enable)
+ setDirty(boundingRect());
+}
+
+void QVNCCursor::set(const QImage &image, int hotx, int hoty)
+{
+ QRegion dirty = boundingRect();
+ QProxyScreenCursor::set(image, hotx, hoty);
+ dirty |= boundingRect();
+ if (enable && hwaccel && !screen->d_ptr->vncServer->hasClientCursor()) {
+ const QVector<QRect> rects = dirty.rects();
+ for (int i = 0; i < rects.size(); ++i)
+ setDirty(rects.at(i));
+ }
+}
+
+void QVNCCursor::move(int x, int y)
+{
+ if (enable && hwaccel && !screen->d_ptr->vncServer->hasClientCursor()) {
+ QRegion dirty = boundingRect();
+ QProxyScreenCursor::move(x, y);
+ dirty |= boundingRect();
+ if (enable) {
+ const QVector<QRect> rects = dirty.rects();
+ for (int i = 0; i < rects.size(); ++i)
+ setDirty(rects.at(i));
+ }
+ } else {
+ QProxyScreenCursor::move(x, y);
+ }
+}
+
+QVNCClientCursor::QVNCClientCursor(QVNCServer *s)
+ : server(s)
+{
+ setScreenCursor(qt_screencursor);
+ Q_ASSERT(hwaccel);
+ qt_screencursor = this; // hw: XXX
+
+ set(image(), hotspot.x(), hotspot.y());
+}
+
+QVNCClientCursor::~QVNCClientCursor()
+{
+ qt_screencursor = screenCursor();
+}
+
+void QVNCClientCursor::set(const QImage &image, int hotx, int hoty)
+{
+ QScreenCursor::set(image, hotx, hoty);
+ server->setDirtyCursor();
+}
+
+void QVNCClientCursor::write() const
+{
+ QTcpSocket *socket = server->clientSocket();
+
+ // FramebufferUpdate header
+ {
+ const quint16 tmp[6] = { htons(0),
+ htons(1),
+ htons(hotspot.x()), htons(hotspot.y()),
+ htons(cursor.width()),
+ htons(cursor.height()) };
+ socket->write((char*)tmp, sizeof(tmp));
+
+ const quint32 encoding = htonl(-239);
+ socket->write((char*)(&encoding), sizeof(encoding));
+ }
+
+ if (cursor.isNull())
+ return;
+
+ // write pixels
+ Q_ASSERT(cursor.hasAlphaChannel());
+ const QImage img = cursor.convertToFormat(server->screen()->pixelFormat());
+ const int n = server->clientBytesPerPixel() * img.width();
+ char *buffer = new char[n];
+ for (int i = 0; i < img.height(); ++i) {
+ server->convertPixels(buffer, (const char*)img.scanLine(i), img.width());
+ socket->write(buffer, n);
+ }
+ delete[] buffer;
+
+ // write mask
+ const QImage bitmap = cursor.createAlphaMask().convertToFormat(QImage::Format_Mono);
+ Q_ASSERT(bitmap.depth() == 1);
+ Q_ASSERT(bitmap.size() == img.size());
+ const int width = (bitmap.width() + 7) / 8;
+ for (int i = 0; i < bitmap.height(); ++i)
+ socket->write((const char*)bitmap.scanLine(i), width);
+}
+
+#endif // QT_NO_QWS_CURSOR
+
+QVNCScreenPrivate::QVNCScreenPrivate(QVNCScreen *parent)
+ : dpiX(72), dpiY(72), doOnScreenSurface(false), refreshRate(25),
+ vncServer(0), q_ptr(parent), noDisablePainting(false)
+{
+#ifdef QT_BUILD_INTERNAL
+ noDisablePainting = (qgetenv("QT_VNC_NO_DISABLEPAINTING").toInt() > 0);
+#endif
+#ifndef QT_NO_QWS_SIGNALHANDLER
+ QWSSignalHandler::instance()->addObject(this);
+#endif
+}
+
+QVNCScreenPrivate::~QVNCScreenPrivate()
+{
+#if defined(QT_NO_QWS_MULTIPROCESS) || defined(QT_NO_SHAREDMEMORY)
+ if (q_ptr->screen())
+ return;
+
+ delete[] q_ptr->data;
+ q_ptr->data = 0;
+#else
+ shm.detach();
+#endif
+}
+
+void QVNCScreenPrivate::configure()
+{
+ if (q_ptr->screen())
+ return;
+
+ q_ptr->lstep = q_ptr->dw * ((q_ptr->d + 7) / 8);
+ q_ptr->size = q_ptr->h * q_ptr->lstep;
+ q_ptr->mapsize = q_ptr->size;
+ q_ptr->physWidth = qRound(q_ptr->dw * qreal(25.4) / dpiX);
+ q_ptr->physHeight = qRound(q_ptr->dh * qreal(25.4) / dpiY);
+
+ switch (q_ptr->d) {
+ case 1:
+ q_ptr->setPixelFormat(QImage::Format_Mono); //### LSB???
+ break;
+ case 8:
+ q_ptr->setPixelFormat(QImage::Format_Indexed8);
+ break;
+ case 12:
+ q_ptr->setPixelFormat(QImage::Format_RGB444);
+ break;
+ case 15:
+ q_ptr->setPixelFormat(QImage::Format_RGB555);
+ break;
+ case 16:
+ q_ptr->setPixelFormat(QImage::Format_RGB16);
+ break;
+ case 18:
+ q_ptr->setPixelFormat(QImage::Format_RGB666);
+ break;
+ case 24:
+ q_ptr->setPixelFormat(QImage::Format_RGB888);
+ break;
+ case 32:
+ q_ptr->setPixelFormat(QImage::Format_ARGB32_Premultiplied);
+ break;
+ }
+
+#if !defined(QT_NO_QWS_MULTIPROCESS) && !defined(QT_NO_SHAREDMEMORY)
+ if (q_ptr->size != shm.size()) {
+ shm.detach();
+ const QString key = qws_qtePipeFilename() +
+ QString().sprintf("_vnc_%d_%d",
+ q_ptr->displayId, q_ptr->size);
+ shm.setKey(key);
+ if (QApplication::type() == QApplication::GuiServer) {
+ if (!shm.create(q_ptr->size)) {
+ qWarning() << "QVNCScreen could not create shared memory:"
+ << shm.errorString();
+ if (!shm.attach()) {
+ qWarning() << "QVNCScreen could not attach to shared memory:"
+ << shm.errorString();
+ }
+ }
+ } else if (!shm.attach()) {
+ qWarning() << "QVNCScreen could not attach to shared memory:"
+ << shm.errorString();
+ }
+ q_ptr->data = reinterpret_cast<uchar*>(shm.data());
+ }
+#else
+ if (q_ptr->data)
+ delete[] q_ptr->data;
+ q_ptr->data = new uchar[q_ptr->size];
+#endif
+}
+
+//===========================================================================
+
+static const 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_PageUp },
+ { 0xff56, Qt::Key_PageDown },
+ { 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 }
+};
+
+void QRfbRect::read(QTcpSocket *s)
+{
+ quint16 buf[4];
+ s->read((char*)buf, 8);
+ x = ntohs(buf[0]);
+ y = ntohs(buf[1]);
+ w = ntohs(buf[2]);
+ h = ntohs(buf[3]);
+}
+
+void QRfbRect::write(QTcpSocket *s) const
+{
+ quint16 buf[4];
+ buf[0] = htons(x);
+ buf[1] = htons(y);
+ buf[2] = htons(w);
+ buf[3] = htons(h);
+ s->write((char*)buf, 8);
+}
+
+void QRfbPixelFormat::read(QTcpSocket *s)
+{
+ char buf[16];
+ s->read(buf, 16);
+ bitsPerPixel = buf[0];
+ depth = buf[1];
+ bigEndian = buf[2];
+ trueColor = buf[3];
+
+ quint16 a = ntohs(*(quint16 *)(buf + 4));
+ redBits = 0;
+ while (a) { a >>= 1; redBits++; }
+
+ a = ntohs(*(quint16 *)(buf + 6));
+ greenBits = 0;
+ while (a) { a >>= 1; greenBits++; }
+
+ a = ntohs(*(quint16 *)(buf + 8));
+ blueBits = 0;
+ while (a) { a >>= 1; blueBits++; }
+
+ redShift = buf[10];
+ greenShift = buf[11];
+ blueShift = buf[12];
+}
+
+void QRfbPixelFormat::write(QTcpSocket *s)
+{
+ char buf[16];
+ buf[0] = bitsPerPixel;
+ buf[1] = depth;
+ buf[2] = bigEndian;
+ buf[3] = trueColor;
+
+ quint16 a = 0;
+ for (int i = 0; i < redBits; i++) a = (a << 1) | 1;
+ *(quint16 *)(buf + 4) = htons(a);
+
+ a = 0;
+ for (int i = 0; i < greenBits; i++) a = (a << 1) | 1;
+ *(quint16 *)(buf + 6) = htons(a);
+
+ a = 0;
+ for (int i = 0; i < blueBits; i++) a = (a << 1) | 1;
+ *(quint16 *)(buf + 8) = htons(a);
+
+ buf[10] = redShift;
+ buf[11] = greenShift;
+ buf[12] = blueShift;
+ s->write(buf, 16);
+}
+
+
+void QRfbServerInit::setName(const char *n)
+{
+ delete[] name;
+ name = new char [strlen(n) + 1];
+ strcpy(name, n);
+}
+
+void QRfbServerInit::read(QTcpSocket *s)
+{
+ s->read((char *)&width, 2);
+ width = ntohs(width);
+ s->read((char *)&height, 2);
+ height = ntohs(height);
+ format.read(s);
+
+ quint32 len;
+ s->read((char *)&len, 4);
+ len = ntohl(len);
+
+ name = new char [len + 1];
+ s->read(name, len);
+ name[len] = '\0';
+}
+
+void QRfbServerInit::write(QTcpSocket *s)
+{
+ quint16 t = htons(width);
+ s->write((char *)&t, 2);
+ t = htons(height);
+ s->write((char *)&t, 2);
+ format.write(s);
+ quint32 len = strlen(name);
+ len = htonl(len);
+ s->write((char *)&len, 4);
+ s->write(name, strlen(name));
+}
+
+bool QRfbSetEncodings::read(QTcpSocket *s)
+{
+ if (s->bytesAvailable() < 3)
+ return false;
+
+ char tmp;
+ s->read(&tmp, 1); // padding
+ s->read((char *)&count, 2);
+ count = ntohs(count);
+
+ return true;
+}
+
+bool QRfbFrameBufferUpdateRequest::read(QTcpSocket *s)
+{
+ if (s->bytesAvailable() < 9)
+ return false;
+
+ s->read(&incremental, 1);
+ rect.read(s);
+
+ return true;
+}
+
+bool QRfbKeyEvent::read(QTcpSocket *s)
+{
+ if (s->bytesAvailable() < 7)
+ return false;
+
+ s->read(&down, 1);
+ quint16 tmp;
+ s->read((char *)&tmp, 2); // padding
+
+ quint32 key;
+ s->read((char *)&key, 4);
+ key = ntohl(key);
+
+ unicode = 0;
+ keycode = 0;
+ int i = 0;
+ while (keyMap[i].keysym && !keycode) {
+ if (keyMap[i].keysym == (int)key)
+ keycode = keyMap[i].keycode;
+ i++;
+ }
+ if (!keycode) {
+ if (key <= 0xff) {
+ unicode = key;
+ if (key >= 'a' && key <= 'z')
+ keycode = Qt::Key_A + key - 'a';
+ else if (key >= ' ' && key <= '~')
+ keycode = Qt::Key_Space + key - ' ';
+ }
+ }
+
+ return true;
+}
+
+bool QRfbPointerEvent::read(QTcpSocket *s)
+{
+ if (s->bytesAvailable() < 5)
+ return false;
+
+ char buttonMask;
+ s->read(&buttonMask, 1);
+ buttons = 0;
+ if (buttonMask & 1)
+ buttons |= Qt::LeftButton;
+ if (buttonMask & 2)
+ buttons |= Qt::MidButton;
+ if (buttonMask & 4)
+ buttons |= Qt::RightButton;
+
+ quint16 tmp;
+ s->read((char *)&tmp, 2);
+ x = ntohs(tmp);
+ s->read((char *)&tmp, 2);
+ y = ntohs(tmp);
+
+ return true;
+}
+
+bool QRfbClientCutText::read(QTcpSocket *s)
+{
+ if (s->bytesAvailable() < 7)
+ return false;
+
+ char tmp[3];
+ s->read(tmp, 3); // padding
+ s->read((char *)&length, 4);
+ length = ntohl(length);
+
+ return true;
+}
+
+//===========================================================================
+
+QVNCServer::QVNCServer(QVNCScreen *screen)
+ : qvnc_screen(screen)
+{
+ init(5900);
+}
+
+QVNCServer::QVNCServer(QVNCScreen *screen, int id)
+ : qvnc_screen(screen)
+{
+ init(5900 + id);
+}
+
+void QVNCServer::init(uint port)
+{
+ handleMsg = false;
+ client = 0;
+ encodingsPending = 0;
+ cutTextPending = 0;
+ keymod = 0;
+ state = Unconnected;
+ dirtyCursor = false;
+
+ refreshRate = 25;
+ timer = new QTimer(this);
+ timer->setSingleShot(true);
+ connect(timer, SIGNAL(timeout()), this, SLOT(checkUpdate()));
+
+ serverSocket = new QTcpServer(this);
+ if (!serverSocket->listen(QHostAddress::Any, port))
+ qDebug() << "QVNCServer could not connect:" << serverSocket->errorString();
+ else
+ qDebug("QVNCServer created on port %d", port);
+
+ connect(serverSocket, SIGNAL(newConnection()), this, SLOT(newConnection()));
+
+#ifndef QT_NO_QWS_CURSOR
+ qvnc_cursor = 0;
+#endif
+ encoder = 0;
+}
+
+QVNCServer::~QVNCServer()
+{
+ delete encoder;
+ encoder = 0;
+ delete client;
+ client = 0;
+#ifndef QT_NO_QWS_CURSOR
+ delete qvnc_cursor;
+ qvnc_cursor = 0;
+#endif
+}
+
+void QVNCServer::setDirty()
+{
+ if (state == Connected && !timer->isActive() &&
+ ((dirtyMap()->numDirty > 0) || dirtyCursor)) {
+ timer->start();
+ }
+}
+
+void QVNCServer::newConnection()
+{
+ if (client)
+ delete client;
+
+ client = serverSocket->nextPendingConnection();
+ connect(client,SIGNAL(readyRead()),this,SLOT(readClient()));
+ connect(client,SIGNAL(disconnected()),this,SLOT(discardClient()));
+ handleMsg = false;
+ encodingsPending = 0;
+ cutTextPending = 0;
+ supportHextile = false;
+ wantUpdate = false;
+
+ timer->start(1000 / refreshRate);
+ dirtyMap()->reset();
+
+ // send protocol version
+ const char *proto = "RFB 003.003\n";
+ client->write(proto, 12);
+ state = Protocol;
+
+ if (!qvnc_screen->screen() && !qvnc_screen->d_ptr->noDisablePainting)
+ QWSServer::instance()->enablePainting(true);
+}
+
+void QVNCServer::readClient()
+{
+ switch (state) {
+ case Protocol:
+ if (client->bytesAvailable() >= 12) {
+ char proto[13];
+ client->read(proto, 12);
+ proto[12] = '\0';
+ qDebug("Client protocol version %s", proto);
+ // No authentication
+ quint32 auth = htonl(1);
+ client->write((char *) &auth, sizeof(auth));
+ state = Init;
+ }
+ break;
+
+ case Init:
+ if (client->bytesAvailable() >= 1) {
+ quint8 shared;
+ client->read((char *) &shared, 1);
+
+ // Server Init msg
+ QRfbServerInit sim;
+ QRfbPixelFormat &format = sim.format;
+ switch (qvnc_screen->depth()) {
+ case 32:
+ format.bitsPerPixel = 32;
+ format.depth = 32;
+ format.bigEndian = 0;
+ format.trueColor = true;
+ format.redBits = 8;
+ format.greenBits = 8;
+ format.blueBits = 8;
+ format.redShift = 16;
+ format.greenShift = 8;
+ format.blueShift = 0;
+ break;
+
+ case 24:
+ format.bitsPerPixel = 24;
+ format.depth = 24;
+ format.bigEndian = 0;
+ format.trueColor = true;
+ format.redBits = 8;
+ format.greenBits = 8;
+ format.blueBits = 8;
+ format.redShift = 16;
+ format.greenShift = 8;
+ format.blueShift = 0;
+ break;
+
+ case 18:
+ format.bitsPerPixel = 24;
+ format.depth = 18;
+ format.bigEndian = 0;
+ format.trueColor = true;
+ format.redBits = 6;
+ format.greenBits = 6;
+ format.blueBits = 6;
+ format.redShift = 12;
+ format.greenShift = 6;
+ format.blueShift = 0;
+ break;
+
+ case 16:
+ format.bitsPerPixel = 16;
+ format.depth = 16;
+ format.bigEndian = 0;
+ format.trueColor = true;
+ format.redBits = 5;
+ format.greenBits = 6;
+ format.blueBits = 5;
+ format.redShift = 11;
+ format.greenShift = 5;
+ format.blueShift = 0;
+ break;
+
+ case 15:
+ format.bitsPerPixel = 16;
+ format.depth = 15;
+ format.bigEndian = 0;
+ format.trueColor = true;
+ format.redBits = 5;
+ format.greenBits = 5;
+ format.blueBits = 5;
+ format.redShift = 10;
+ format.greenShift = 5;
+ format.blueShift = 0;
+ break;
+
+ case 12:
+ format.bitsPerPixel = 16;
+ format.depth = 12;
+ format.bigEndian = 0;
+ format.trueColor = true;
+ format.redBits = 4;
+ format.greenBits = 4;
+ format.blueBits = 4;
+ format.redShift = 8;
+ format.greenShift = 4;
+ format.blueShift = 0;
+ break;
+
+ case 8:
+ case 4:
+ format.bitsPerPixel = 8;
+ format.depth = 8;
+ format.bigEndian = 0;
+ format.trueColor = false;
+ format.redBits = 0;
+ format.greenBits = 0;
+ format.blueBits = 0;
+ format.redShift = 0;
+ format.greenShift = 0;
+ format.blueShift = 0;
+ break;
+
+ default:
+ qDebug("QVNC cannot drive depth %d", qvnc_screen->depth());
+ discardClient();
+ return;
+ }
+ sim.width = qvnc_screen->deviceWidth();
+ sim.height = qvnc_screen->deviceHeight();
+ sim.setName("Qt for Embedded Linux VNC Server");
+ sim.write(client);
+ state = Connected;
+ }
+ break;
+
+ case Connected:
+ do {
+ if (!handleMsg) {
+ client->read((char *)&msgType, 1);
+ handleMsg = true;
+ }
+ if (handleMsg) {
+ switch (msgType ) {
+ case SetPixelFormat:
+ setPixelFormat();
+ break;
+ case FixColourMapEntries:
+ qDebug("Not supported: FixColourMapEntries");
+ handleMsg = false;
+ break;
+ case SetEncodings:
+ setEncodings();
+ break;
+ case FramebufferUpdateRequest:
+ frameBufferUpdateRequest();
+ break;
+ case KeyEvent:
+ keyEvent();
+ break;
+ case PointerEvent:
+ pointerEvent();
+ break;
+ case ClientCutText:
+ clientCutText();
+ break;
+ default:
+ qDebug("Unknown message type: %d", (int)msgType);
+ handleMsg = false;
+ }
+ }
+ } while (!handleMsg && client->bytesAvailable());
+ break;
+ default:
+ break;
+ }
+}
+
+#if Q_BYTE_ORDER == Q_BIG_ENDIAN
+bool QVNCScreen::swapBytes() const
+{
+ if (depth() != 16)
+ return false;
+
+ if (screen())
+ return screen()->frameBufferLittleEndian();
+ return frameBufferLittleEndian();
+}
+#endif
+
+void QVNCServer::setPixelFormat()
+{
+ if (client->bytesAvailable() >= 19) {
+ char buf[3];
+ client->read(buf, 3); // just padding
+ pixelFormat.read(client);
+#ifdef QT_QWS_VNC_DEBUG
+ qDebug("Want format: %d %d %d %d %d %d %d %d %d %d",
+ int(pixelFormat.bitsPerPixel),
+ int(pixelFormat.depth),
+ int(pixelFormat.bigEndian),
+ int(pixelFormat.trueColor),
+ int(pixelFormat.redBits),
+ int(pixelFormat.greenBits),
+ int(pixelFormat.blueBits),
+ int(pixelFormat.redShift),
+ int(pixelFormat.greenShift),
+ int(pixelFormat.blueShift));
+#endif
+ if (!pixelFormat.trueColor) {
+ qDebug("Can only handle true color clients");
+ discardClient();
+ }
+ handleMsg = false;
+ sameEndian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) == !!pixelFormat.bigEndian;
+ needConversion = pixelConversionNeeded();
+#if Q_BYTE_ORDER == Q_BIG_ENDIAN
+ swapBytes = qvnc_screen->swapBytes();
+#endif
+ }
+}
+
+void QVNCServer::setEncodings()
+{
+ QRfbSetEncodings enc;
+
+ if (!encodingsPending && enc.read(client)) {
+ encodingsPending = enc.count;
+ if (!encodingsPending)
+ handleMsg = false;
+ }
+
+ if (encoder) {
+ delete encoder;
+ encoder = 0;
+ }
+
+ enum Encodings {
+ Raw = 0,
+ CopyRect = 1,
+ RRE = 2,
+ CoRRE = 4,
+ Hextile = 5,
+ ZRLE = 16,
+ Cursor = -239,
+ DesktopSize = -223
+ };
+
+ if (encodingsPending && (unsigned)client->bytesAvailable() >=
+ encodingsPending * sizeof(quint32)) {
+ for (int i = 0; i < encodingsPending; ++i) {
+ qint32 enc;
+ client->read((char *)&enc, sizeof(qint32));
+ enc = ntohl(enc);
+#ifdef QT_QWS_VNC_DEBUG
+ qDebug("QVNCServer::setEncodings: %d", enc);
+#endif
+ switch (enc) {
+ case Raw:
+ if (!encoder) {
+ encoder = new QRfbRawEncoder(this);
+#ifdef QT_QWS_VNC_DEBUG
+ qDebug("QVNCServer::setEncodings: using raw");
+#endif
+ }
+ break;
+ case CopyRect:
+ supportCopyRect = true;
+ break;
+ case RRE:
+ supportRRE = true;
+ break;
+ case CoRRE:
+ supportCoRRE = true;
+ break;
+ case Hextile:
+ supportHextile = true;
+ if (encoder)
+ break;
+ switch (qvnc_screen->depth()) {
+#ifdef QT_QWS_DEPTH_8
+ case 8:
+ encoder = new QRfbHextileEncoder<quint8>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_12
+ case 12:
+ encoder = new QRfbHextileEncoder<qrgb444>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_15
+ case 15:
+ encoder = new QRfbHextileEncoder<qrgb555>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_16
+ case 16:
+ encoder = new QRfbHextileEncoder<quint16>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_18
+ case 18:
+ encoder = new QRfbHextileEncoder<qrgb666>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_24
+ case 24:
+ encoder = new QRfbHextileEncoder<qrgb888>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_32
+ case 32:
+ encoder = new QRfbHextileEncoder<quint32>(this);
+ break;
+#endif
+ default:
+ break;
+ }
+#ifdef QT_QWS_VNC_DEBUG
+ qDebug("QVNCServer::setEncodings: using hextile");
+#endif
+ break;
+ case ZRLE:
+ supportZRLE = true;
+ break;
+ case Cursor:
+ supportCursor = true;
+#ifndef QT_NO_QWS_CURSOR
+ if (!qvnc_screen->screen() || qt_screencursor->isAccelerated()) {
+ delete qvnc_cursor;
+ qvnc_cursor = new QVNCClientCursor(this);
+ }
+#endif
+ break;
+ case DesktopSize:
+ supportDesktopSize = true;
+ break;
+ default:
+ break;
+ }
+ }
+ handleMsg = false;
+ encodingsPending = 0;
+ }
+
+ if (!encoder) {
+ encoder = new QRfbRawEncoder(this);
+#ifdef QT_QWS_VNC_DEBUG
+ qDebug("QVNCServer::setEncodings: fallback using raw");
+#endif
+ }
+}
+
+void QVNCServer::frameBufferUpdateRequest()
+{
+ QRfbFrameBufferUpdateRequest ev;
+
+ if (ev.read(client)) {
+ if (!ev.incremental) {
+ QRect r(ev.rect.x, ev.rect.y, ev.rect.w, ev.rect.h);
+ r.translate(qvnc_screen->offset());
+ qvnc_screen->d_ptr->setDirty(r, true);
+ }
+ wantUpdate = true;
+ checkUpdate();
+ handleMsg = false;
+ }
+}
+
+void QVNCServer::pointerEvent()
+{
+ QRfbPointerEvent ev;
+ if (ev.read(client)) {
+ const QPoint offset = qvnc_screen->offset();
+ QWSServer::sendMouseEvent(offset + QPoint(ev.x, ev.y), ev.buttons);
+ handleMsg = false;
+ }
+}
+
+void QVNCServer::keyEvent()
+{
+ QRfbKeyEvent ev;
+
+ if (ev.read(client)) {
+ if (ev.keycode == Qt::Key_Shift)
+ keymod = ev.down ? keymod | Qt::ShiftModifier :
+ keymod & ~Qt::ShiftModifier;
+ else if (ev.keycode == Qt::Key_Control)
+ keymod = ev.down ? keymod | Qt::ControlModifier :
+ keymod & ~Qt::ControlModifier;
+ else if (ev.keycode == Qt::Key_Alt)
+ keymod = ev.down ? keymod | Qt::AltModifier :
+ keymod & ~Qt::AltModifier;
+ if (ev.unicode || ev.keycode)
+ QWSServer::sendKeyEvent(ev.unicode, ev.keycode, keymod, ev.down, false);
+ handleMsg = false;
+ }
+}
+
+void QVNCServer::clientCutText()
+{
+ QRfbClientCutText ev;
+
+ if (ev.read(client)) {
+ cutTextPending = ev.length;
+ if (!cutTextPending)
+ handleMsg = false;
+ }
+
+ if (cutTextPending && client->bytesAvailable() >= cutTextPending) {
+ char *text = new char [cutTextPending+1];
+ client->read(text, cutTextPending);
+ delete [] text;
+ cutTextPending = 0;
+ handleMsg = false;
+ }
+}
+
+// stride in bytes
+template <class SRC>
+bool QRfbSingleColorHextile<SRC>::read(const uchar *data,
+ int width, int height, int stride)
+{
+ const int depth = encoder->server->screen()->depth();
+ if (width % (depth / 8)) // hw: should rather fallback to simple loop
+ return false;
+
+ static int alwaysFalse = qgetenv("QT_VNC_NOCHECKFILL").toInt();
+ if (alwaysFalse)
+ return false;
+
+ switch (depth) {
+ case 4: {
+ const quint8 *data8 = reinterpret_cast<const quint8*>(data);
+ if ((data8[0] & 0xf) != (data8[0] >> 4))
+ return false;
+ width /= 2;
+ } // fallthrough
+ case 8: {
+ const quint8 *data8 = reinterpret_cast<const quint8*>(data);
+ if (data8[0] != data8[1])
+ return false;
+ width /= 2;
+ } // fallthrough
+ case 12:
+ case 15:
+ case 16: {
+ const quint16 *data16 = reinterpret_cast<const quint16*>(data);
+ if (data16[0] != data16[1])
+ return false;
+ width /= 2;
+ } // fallthrough
+ case 18:
+ case 24:
+ case 32: {
+ const quint32 *data32 = reinterpret_cast<const quint32*>(data);
+ const quint32 first = data32[0];
+ const int linestep = (stride / sizeof(quint32)) - width;
+ for (int y = 0; y < height; ++y) {
+ for (int x = 0; x < width; ++x) {
+ if (*(data32++) != first)
+ return false;
+ }
+ data32 += linestep;
+ }
+ break;
+ }
+ default:
+ return false;
+ }
+
+ SRC color = reinterpret_cast<const SRC*>(data)[0];
+ encoder->newBg |= (color != encoder->bg);
+ encoder->bg = color;
+ return true;
+}
+
+template <class SRC>
+void QRfbSingleColorHextile<SRC>::write(QTcpSocket *socket) const
+{
+ if (true || encoder->newBg) {
+ const int bpp = encoder->server->clientBytesPerPixel();
+ const int padding = 3;
+ QVarLengthArray<char> buffer(padding + 1 + bpp);
+ buffer[padding] = 2; // BackgroundSpecified
+ encoder->server->convertPixels(buffer.data() + padding + 1,
+ reinterpret_cast<char*>(&encoder->bg),
+ 1);
+ socket->write(buffer.data() + padding, bpp + 1);
+// encoder->newBg = false;
+ } else {
+ char subenc = 0;
+ socket->write(&subenc, 1);
+ }
+}
+
+template <class SRC>
+bool QRfbDualColorHextile<SRC>::read(const uchar *data,
+ int width, int height, int stride)
+{
+ const SRC *ptr = reinterpret_cast<const SRC*>(data);
+ const int linestep = (stride / sizeof(SRC)) - width;
+
+ SRC c1;
+ SRC c2 = 0;
+ int n1 = 0;
+ int n2 = 0;
+ int x = 0;
+ int y = 0;
+
+ c1 = *ptr;
+
+ // find second color
+ while (y < height) {
+ while (x < width) {
+ if (*ptr == c1) {
+ ++n1;
+ } else {
+ c2 = *ptr;
+ goto found_second_color;
+ }
+ ++ptr;
+ ++x;
+ }
+ x = 0;
+ ptr += linestep;
+ ++y;
+ }
+
+found_second_color:
+ // finish counting
+ while (y < height) {
+ while (x < width) {
+ if (*ptr == c1) {
+ ++n1;
+ } else if (*ptr == c2) {
+ ++n2;
+ } else {
+ return false;
+ }
+ ++ptr;
+ ++x;
+ }
+ x = 0;
+ ptr += linestep;
+ ++y;
+ }
+
+ if (n2 > n1) {
+ const quint32 tmpC = c1;
+ c1 = c2;
+ c2 = tmpC;
+ }
+
+ encoder->newBg |= (c1 != encoder->bg);
+ encoder->newFg |= (c2 != encoder->fg);
+
+ encoder->bg = c1;
+ encoder->fg = c2;
+
+ // create map
+ bool inRect = false;
+ numRects = 0;
+ ptr = reinterpret_cast<const SRC*>(data);
+ for (y = 0; y < height; ++y) {
+ for (x = 0; x < width; ++x) {
+ if (inRect && *ptr == encoder->bg) {
+ // rect finished
+ setWidth(x - lastx());
+ next();
+ inRect = false;
+ } else if (!inRect && *ptr == encoder->fg) {
+ // rect start
+ setX(x);
+ setY(y);
+ setHeight(1);
+ inRect = true;
+ }
+ ++ptr;
+ }
+ if (inRect) {
+ // finish rect
+ setWidth(width - lastx());
+ next();
+ inRect = false;
+ }
+ ptr += linestep;
+ }
+
+ return true;
+}
+
+template <class SRC>
+void QRfbDualColorHextile<SRC>::write(QTcpSocket *socket) const
+{
+ const int bpp = encoder->server->clientBytesPerPixel();
+ const int padding = 3;
+ QVarLengthArray<char> buffer(padding + 2 * bpp + sizeof(char) + sizeof(numRects));
+ char &subenc = buffer[padding];
+ int n = padding + sizeof(subenc);
+
+ subenc = 0x8; // AnySubrects
+
+ if (encoder->newBg) {
+ subenc |= 0x2; // Background
+ encoder->server->convertPixels(buffer.data() + n, (char*)&encoder->bg, 1);
+ n += bpp;
+// encoder->newBg = false;
+ }
+
+ if (encoder->newFg) {
+ subenc |= 0x4; // Foreground
+ encoder->server->convertPixels(buffer.data() + n, (char*)&encoder->fg, 1);
+ n += bpp;
+// encoder->newFg = false;
+ }
+ buffer[n] = numRects;
+ n += sizeof(numRects);
+
+ socket->write(buffer.data() + padding, n - padding);
+ socket->write((char*)rects, numRects * sizeof(Rect));
+}
+
+template <class SRC>
+void QRfbDualColorHextile<SRC>::next()
+{
+ for (int r = numRects - 1; r >= 0; --r) {
+ if (recty(r) == lasty())
+ continue;
+ if (recty(r) < lasty() - 1) // only search previous scanline
+ break;
+ if (rectx(r) == lastx() && width(r) == width(numRects)) {
+ ++rects[r].wh;
+ return;
+ }
+ }
+ ++numRects;
+}
+
+template <class SRC>
+inline void QRfbMultiColorHextile<SRC>::setColor(SRC color)
+{
+ encoder->server->convertPixels(reinterpret_cast<char*>(rect(numRects)),
+ (const char*)&color, 1);
+}
+
+template <class SRC>
+inline bool QRfbMultiColorHextile<SRC>::beginRect()
+{
+ if ((rects.size() + bpp + 2) > maxRectsSize)
+ return false;
+ rects.resize(rects.size() + bpp + 2);
+ return true;
+}
+
+template <class SRC>
+inline void QRfbMultiColorHextile<SRC>::endRect()
+{
+ setHeight(numRects, 1);
+ ++numRects;
+}
+
+template <class SRC>
+bool QRfbMultiColorHextile<SRC>::read(const uchar *data,
+ int width, int height, int stride)
+{
+ const SRC *ptr = reinterpret_cast<const SRC*>(data);
+ const int linestep = (stride / sizeof(SRC)) - width;
+
+ bpp = encoder->server->clientBytesPerPixel();
+
+ if (encoder->newBg)
+ encoder->bg = ptr[0];
+
+ const SRC bg = encoder->bg;
+ SRC color = bg;
+ bool inRect = false;
+
+ numRects = 0;
+ rects.clear();
+
+ for (int y = 0; y < height; ++y) {
+ for (int x = 0; x < width; ++x) {
+ if (inRect && *ptr != color) { // end rect
+ setWidth(numRects, x - rectx(numRects));
+ endRect();
+ inRect = false;
+ }
+
+ if (!inRect && *ptr != bg) { // begin rect
+ if (!beginRect())
+ return false;
+ inRect = true;
+ color = *ptr;
+ setColor(color);
+ setX(numRects, x);
+ setY(numRects, y);
+ }
+ ++ptr;
+ }
+ if (inRect) { // end rect
+ setWidth(numRects, width - rectx(numRects));
+ endRect();
+ inRect = false;
+ }
+ ptr += linestep;
+ }
+
+ return true;
+}
+
+template <class SRC>
+void QRfbMultiColorHextile<SRC>::write(QTcpSocket *socket) const
+{
+ const int padding = 3;
+ QVarLengthArray<quint8> buffer(bpp + padding + sizeof(quint8) + sizeof(numRects));
+
+ quint8 &subenc = buffer[padding];
+ int n = padding + sizeof(quint8);
+
+ subenc = 8 | 16; // AnySubrects | SubrectsColoured
+
+ if (encoder->newBg) {
+ subenc |= 0x2; // Background
+ encoder->server->convertPixels(reinterpret_cast<char*>(buffer.data() + n),
+ reinterpret_cast<const char*>(&encoder->bg),
+ 1);
+ n += bpp;
+// encoder->newBg = false;
+ }
+
+ buffer[n] = numRects;
+ n += sizeof(numRects);
+
+ socket->write(reinterpret_cast<const char*>(buffer.data() + padding),
+ n - padding);
+ socket->write(reinterpret_cast<const char*>(rects.constData()),
+ rects.size());
+}
+
+bool QVNCServer::pixelConversionNeeded() const
+{
+ if (!sameEndian)
+ return true;
+
+#if Q_BYTE_ORDER == Q_BIG_ENDIAN
+ if (qvnc_screen->swapBytes())
+ return true;
+#endif
+
+ const int screendepth = qvnc_screen->depth();
+ if (screendepth != pixelFormat.bitsPerPixel)
+ return true;
+
+ switch (screendepth) {
+ case 32:
+ case 24:
+ return false;
+ case 18:
+ return (pixelFormat.redBits == 6
+ && pixelFormat.greenBits == 6
+ && pixelFormat.blueBits == 6);
+ case 16:
+ return (pixelFormat.redBits == 5
+ && pixelFormat.greenBits == 6
+ && pixelFormat.blueBits == 5);
+ case 15:
+ return (pixelFormat.redBits == 5
+ && pixelFormat.greenBits == 5
+ && pixelFormat.blueBits == 5);
+ case 12:
+ return (pixelFormat.redBits == 4
+ && pixelFormat.greenBits == 4
+ && pixelFormat.blueBits == 4);
+ }
+ return true;
+}
+
+// count: number of pixels
+void QVNCServer::convertPixels(char *dst, const char *src, int count) const
+{
+ const int screendepth = qvnc_screen->depth();
+ const bool isBgr = qvnc_screen->pixelType() == QScreen::BGRPixel;
+
+ // cutoffs
+#if Q_BYTE_ORDER == Q_BIG_ENDIAN
+ if (!swapBytes)
+#endif
+ if (sameEndian) {
+ if (screendepth == pixelFormat.bitsPerPixel) { // memcpy cutoffs
+
+ switch (screendepth) {
+ case 32:
+ memcpy(dst, src, count * sizeof(quint32));
+ return;
+ case 16:
+ if (pixelFormat.redBits == 5
+ && pixelFormat.greenBits == 6
+ && pixelFormat.blueBits == 5)
+ {
+ memcpy(dst, src, count * sizeof(quint16));
+ return;
+ }
+ }
+ } else if (screendepth == 16 && pixelFormat.bitsPerPixel == 32) {
+#if defined(__i386__) // Currently fails on ARM if dst is not 4 byte aligned
+ const quint32 *src32 = reinterpret_cast<const quint32*>(src);
+ quint32 *dst32 = reinterpret_cast<quint32*>(dst);
+ int count32 = count * sizeof(quint16) / sizeof(quint32);
+ while (count32--) {
+ const quint32 s = *src32++;
+ quint32 result1;
+ quint32 result2;
+
+ // red
+ result1 = ((s & 0xf8000000) | ((s & 0xe0000000) >> 5)) >> 8;
+ result2 = ((s & 0x0000f800) | ((s & 0x0000e000) >> 5)) << 8;
+
+ // green
+ result1 |= ((s & 0x07e00000) | ((s & 0x06000000) >> 6)) >> 11;
+ result2 |= ((s & 0x000007e0) | ((s & 0x00000600) >> 6)) << 5;
+
+ // blue
+ result1 |= ((s & 0x001f0000) | ((s & 0x001c0000) >> 5)) >> 13;
+ result2 |= ((s & 0x0000001f) | ((s & 0x0000001c) >> 5)) << 3;
+
+ *dst32++ = result2;
+ *dst32++ = result1;
+ }
+ if (count & 0x1) {
+ const quint16 *src16 = reinterpret_cast<const quint16*>(src);
+ dst32[count - 1] = qt_conv16ToRgb(src16[count - 1]);
+ }
+ return;
+#endif
+ }
+ }
+
+ const int bytesPerPixel = (pixelFormat.bitsPerPixel + 7) / 8;
+
+// nibble = 0;
+
+ for (int i = 0; i < count; ++i) {
+ int r, g, b;
+
+ switch (screendepth) {
+#if 0
+ case 4: {
+ if (!nibble) {
+ r = ((*src) & 0x0f) << 4;
+ } else {
+ r = (*src) & 0xf0;
+ src++;
+ }
+ nibble = !nibble;
+ g = b = r;
+ break;
+ }
+#endif
+ case 8: {
+ QRgb rgb = qvnc_screen->clut()[int(*src)];
+ r = qRed(rgb);
+ g = qGreen(rgb);
+ b = qBlue(rgb);
+ src++;
+ break;
+ }
+#ifdef QT_QWS_DEPTH_12
+ case 12: {
+ quint32 p = quint32(*reinterpret_cast<const qrgb444*>(src));
+ r = qRed(p);
+ g = qGreen(p);
+ b = qBlue(p);
+ src += sizeof(qrgb444);
+ break;
+ }
+#endif
+#ifdef QT_QWS_DEPTH_15
+ case 15: {
+ quint32 p = quint32(*reinterpret_cast<const qrgb555*>(src));
+ r = qRed(p);
+ g = qGreen(p);
+ b = qBlue(p);
+ src += sizeof(qrgb555);
+ break;
+ }
+#endif
+ case 16: {
+ quint16 p = *reinterpret_cast<const quint16*>(src);
+#if Q_BYTE_ORDER == Q_BIG_ENDIAN
+ if (swapBytes)
+ p = ((p & 0xff) << 8) | ((p & 0xff00) >> 8);
+#endif
+ r = (p >> 11) & 0x1f;
+ g = (p >> 5) & 0x3f;
+ b = p & 0x1f;
+ r <<= 3;
+ g <<= 2;
+ b <<= 3;
+ src += sizeof(quint16);
+ break;
+ }
+#ifdef QT_QWS_DEPTH_18
+ case 18: {
+ quint32 p = quint32(*reinterpret_cast<const qrgb666*>(src));
+ r = qRed(p);
+ g = qGreen(p);
+ b = qBlue(p);
+ src += sizeof(qrgb666);
+ break;
+ }
+#endif
+#ifdef QT_QWS_DEPTH_24
+ case 24: {
+ quint32 p = quint32(*reinterpret_cast<const qrgb888*>(src));
+ r = qRed(p);
+ g = qGreen(p);
+ b = qBlue(p);
+ src += sizeof(qrgb888);
+ break;
+ }
+#endif
+ case 32: {
+ quint32 p = *reinterpret_cast<const quint32*>(src);
+ r = (p >> 16) & 0xff;
+ g = (p >> 8) & 0xff;
+ b = p & 0xff;
+ src += sizeof(quint32);
+ break;
+ }
+ default: {
+ r = g = b = 0;
+ qDebug("QVNCServer: don't support %dbpp display", screendepth);
+ return;
+ }
+ }
+
+#if Q_BYTE_ORDER == Q_BIG_ENDIAN
+ if (swapBytes ^ isBgr)
+#else
+ if (isBgr)
+#endif
+ qSwap(r, b);
+
+ r >>= (8 - pixelFormat.redBits);
+ g >>= (8 - pixelFormat.greenBits);
+ b >>= (8 - pixelFormat.blueBits);
+
+ int pixel = (r << pixelFormat.redShift) |
+ (g << pixelFormat.greenShift) |
+ (b << pixelFormat.blueShift);
+
+ if (sameEndian || pixelFormat.bitsPerPixel == 8) {
+ memcpy(dst, &pixel, bytesPerPixel); // XXX: do a simple for-loop instead?
+ dst += bytesPerPixel;
+ continue;
+ }
+
+
+ if (QSysInfo::ByteOrder == QSysInfo::BigEndian) {
+ switch (pixelFormat.bitsPerPixel) {
+ case 16:
+ pixel = (((pixel & 0x0000ff00) << 8) |
+ ((pixel & 0x000000ff) << 24));
+ break;
+ case 32:
+ pixel = (((pixel & 0xff000000) >> 24) |
+ ((pixel & 0x00ff0000) >> 8) |
+ ((pixel & 0x0000ff00) << 8) |
+ ((pixel & 0x000000ff) << 24));
+ break;
+ default:
+ qDebug("Cannot handle %d bpp client", pixelFormat.bitsPerPixel);
+ }
+ } else { // QSysInfo::ByteOrder == QSysInfo::LittleEndian
+ switch (pixelFormat.bitsPerPixel) {
+ case 16:
+ pixel = (((pixel & 0xff000000) >> 8) |
+ ((pixel & 0x00ff0000) << 8));
+ break;
+ case 32:
+ pixel = (((pixel & 0xff000000) >> 24) |
+ ((pixel & 0x00ff0000) >> 8) |
+ ((pixel & 0x0000ff00) << 8) |
+ ((pixel & 0x000000ff) << 24));
+ break;
+ default:
+ qDebug("Cannot handle %d bpp client",
+ pixelFormat.bitsPerPixel);
+ break;
+ }
+ }
+ memcpy(dst, &pixel, bytesPerPixel); // XXX: simple for-loop instead?
+ dst += bytesPerPixel;
+ }
+}
+
+#ifndef QT_NO_QWS_CURSOR
+static void blendCursor(QImage &image, const QRect &imageRect)
+{
+ const QRect cursorRect = qt_screencursor->boundingRect();
+ const QRect intersection = (cursorRect & imageRect);
+ const QRect destRect = intersection.translated(-imageRect.topLeft());
+ const QRect srcRect = intersection.translated(-cursorRect.topLeft());
+
+ QPainter painter(&image);
+ painter.drawImage(destRect, qt_screencursor->image(), srcRect);
+ painter.end();
+}
+#endif // QT_NO_QWS_CURSOR
+
+QVNCDirtyMap::QVNCDirtyMap(QScreen *s)
+ : bytesPerPixel(0), numDirty(0), screen(s)
+{
+ bytesPerPixel = (screen->depth() + 7) / 8;
+ bufferWidth = screen->deviceWidth();
+ bufferHeight = screen->deviceHeight();
+ bufferStride = bufferWidth * bytesPerPixel;
+ buffer = new uchar[bufferHeight * bufferStride];
+
+ mapWidth = (bufferWidth + MAP_TILE_SIZE - 1) / MAP_TILE_SIZE;
+ mapHeight = (bufferHeight + MAP_TILE_SIZE - 1) / MAP_TILE_SIZE;
+ numTiles = mapWidth * mapHeight;
+ map = new uchar[numTiles];
+}
+
+QVNCDirtyMap::~QVNCDirtyMap()
+{
+ delete[] map;
+ delete[] buffer;
+}
+
+void QVNCDirtyMap::reset()
+{
+ memset(map, 1, numTiles);
+ memset(buffer, 0, bufferHeight * bufferStride);
+ numDirty = numTiles;
+}
+
+inline bool QVNCDirtyMap::dirty(int x, int y) const
+{
+ return map[y * mapWidth + x];
+}
+
+inline void QVNCDirtyMap::setClean(int x, int y)
+{
+ map[y * mapWidth + x] = 0;
+ --numDirty;
+}
+
+template <class T>
+void QVNCDirtyMapOptimized<T>::setDirty(int tileX, int tileY, bool force)
+{
+ static bool alwaysForce = qgetenv("QT_VNC_NO_COMPAREBUFFER").toInt();
+ if (alwaysForce)
+ force = true;
+
+ bool changed = false;
+
+ if (!force) {
+ const int lstep = screen->linestep();
+ const int startX = tileX * MAP_TILE_SIZE;
+ const int startY = tileY * MAP_TILE_SIZE;
+ const uchar *scrn = screen->base()
+ + startY * lstep + startX * bytesPerPixel;
+ uchar *old = buffer + startY * bufferStride + startX * sizeof(T);
+
+ const int tileHeight = (startY + MAP_TILE_SIZE > bufferHeight ?
+ bufferHeight - startY : MAP_TILE_SIZE);
+ const int tileWidth = (startX + MAP_TILE_SIZE > bufferWidth ?
+ bufferWidth - startX : MAP_TILE_SIZE);
+ const bool doInlines = (tileWidth == MAP_TILE_SIZE);
+
+ int y = tileHeight;
+
+ if (doInlines) { // hw: memcmp/memcpy is inlined when using constants
+ while (y) {
+ if (memcmp(old, scrn, sizeof(T) * MAP_TILE_SIZE)) {
+ changed = true;
+ break;
+ }
+ scrn += lstep;
+ old += bufferStride;
+ --y;
+ }
+
+ while (y) {
+ memcpy(old, scrn, sizeof(T) * MAP_TILE_SIZE);
+ scrn += lstep;
+ old += bufferStride;
+ --y;
+ }
+ } else {
+ while (y) {
+ if (memcmp(old, scrn, sizeof(T) * tileWidth)) {
+ changed = true;
+ break;
+ }
+ scrn += lstep;
+ old += bufferStride;
+ --y;
+ }
+
+ while (y) {
+ memcpy(old, scrn, sizeof(T) * tileWidth);
+ scrn += lstep;
+ old += bufferStride;
+ --y;
+ }
+ }
+ }
+
+ const int mapIndex = tileY * mapWidth + tileX;
+ if ((force || changed) && !map[mapIndex]) {
+ map[mapIndex] = 1;
+ ++numDirty;
+ }
+}
+
+template <class SRC>
+QRfbHextileEncoder<SRC>::QRfbHextileEncoder(QVNCServer *s)
+ : QRfbEncoder(s),
+ singleColorHextile(this), dualColorHextile(this), multiColorHextile(this)
+{
+}
+
+/*
+ \internal
+ Send dirty rects using hextile encoding.
+*/
+template <class SRC>
+void QRfbHextileEncoder<SRC>::write()
+{
+ QWSDisplay::grab(true);
+
+ QVNCDirtyMap *map = server->dirtyMap();
+ QTcpSocket *socket = server->clientSocket();
+
+ const quint32 encoding = htonl(5); // hextile encoding
+ const int bytesPerPixel = server->clientBytesPerPixel();
+
+ {
+ const char tmp[2] = { 0, 0 }; // msg type, padding
+ socket->write(tmp, sizeof(tmp));
+ }
+ {
+ const quint16 count = htons(map->numDirty);
+ socket->write((char *)&count, sizeof(count));
+ }
+
+ if (map->numDirty <= 0) {
+ QWSDisplay::ungrab();
+ return;
+ }
+
+ newBg = true;
+ newFg = true;
+
+ const QImage screenImage = server->screenImage();
+ QRfbRect rect(0, 0, MAP_TILE_SIZE, MAP_TILE_SIZE);
+
+ for (int y = 0; y < map->mapHeight; ++y) {
+ if (rect.y + MAP_TILE_SIZE > server->screen()->height())
+ rect.h = server->screen()->height() - rect.y;
+ rect.w = MAP_TILE_SIZE;
+ for (int x = 0; x < map->mapWidth; ++x) {
+ if (!map->dirty(x, y))
+ continue;
+ map->setClean(x, y);
+
+ rect.x = x * MAP_TILE_SIZE;
+ if (rect.x + MAP_TILE_SIZE > server->screen()->deviceWidth())
+ rect.w = server->screen()->deviceWidth() - rect.x;
+ rect.write(socket);
+
+ socket->write((char *)&encoding, sizeof(encoding));
+
+ const uchar *screendata = screenImage.scanLine(rect.y)
+ + rect.x * screenImage.depth() / 8;
+ int linestep = screenImage.bytesPerLine();
+
+#ifndef QT_NO_QWS_CURSOR
+ // hardware cursors must be blended with the screen memory
+ const bool doBlendCursor = qt_screencursor
+ && !server->hasClientCursor()
+ && qt_screencursor->isAccelerated();
+ QImage tileImage;
+ if (doBlendCursor) {
+ const QRect tileRect(rect.x, rect.y, rect.w, rect.h);
+ const QRect cursorRect = qt_screencursor->boundingRect()
+ .translated(-server->screen()->offset());
+ if (tileRect.intersects(cursorRect)) {
+ tileImage = screenImage.copy(tileRect);
+ blendCursor(tileImage,
+ tileRect.translated(server->screen()->offset()));
+ screendata = tileImage.bits();
+ linestep = tileImage.bytesPerLine();
+ }
+ }
+#endif // QT_NO_QWS_CURSOR
+
+ if (singleColorHextile.read(screendata, rect.w, rect.h, linestep)) {
+ singleColorHextile.write(socket);
+ } else if (dualColorHextile.read(screendata, rect.w, rect.h, linestep)) {
+ dualColorHextile.write(socket);
+ } else if (multiColorHextile.read(screendata, rect.w, rect.h, linestep)) {
+ multiColorHextile.write(socket);
+ } else if (server->doPixelConversion()) {
+ const int bufferSize = rect.w * rect.h * bytesPerPixel + 1;
+ const int padding = sizeof(quint32) - sizeof(char);
+ buffer.resize(bufferSize + padding);
+
+ buffer[padding] = 1; // Raw subencoding
+
+ // convert pixels
+ char *b = buffer.data() + padding + 1;
+ const int bstep = rect.w * bytesPerPixel;
+ for (int i = 0; i < rect.h; ++i) {
+ server->convertPixels(b, (const char*)screendata, rect.w);
+ screendata += linestep;
+ b += bstep;
+ }
+ socket->write(buffer.constData() + padding, bufferSize);
+ } else {
+ quint8 subenc = 1; // Raw subencoding
+ socket->write((char *)&subenc, 1);
+
+ // send pixels
+ for (int i = 0; i < rect.h; ++i) {
+ socket->write((const char*)screendata,
+ rect.w * bytesPerPixel);
+ screendata += linestep;
+ }
+ }
+ }
+ if (socket->state() == QAbstractSocket::UnconnectedState)
+ break;
+ rect.y += MAP_TILE_SIZE;
+ }
+ socket->flush();
+ Q_ASSERT(map->numDirty == 0);
+
+ QWSDisplay::ungrab();
+}
+
+void QRfbRawEncoder::write()
+{
+ QWSDisplay::grab(false);
+
+ QVNCDirtyMap *map = server->dirtyMap();
+ QTcpSocket *socket = server->clientSocket();
+
+ const int bytesPerPixel = server->clientBytesPerPixel();
+
+ // create a region from the dirty rects and send the region's merged rects.
+ QRegion rgn;
+ if (map) {
+ for (int y = 0; y < map->mapHeight; ++y) {
+ for (int x = 0; x < map->mapWidth; ++x) {
+ if (!map->dirty(x, y))
+ continue;
+ rgn += QRect(x * MAP_TILE_SIZE, y * MAP_TILE_SIZE,
+ MAP_TILE_SIZE, MAP_TILE_SIZE);
+ map->setClean(x, y);
+ }
+ }
+
+ rgn &= QRect(0, 0, server->screen()->deviceWidth(),
+ server->screen()->deviceHeight());
+ }
+ const QVector<QRect> rects = rgn.rects();
+
+ {
+ const char tmp[2] = { 0, 0 }; // msg type, padding
+ socket->write(tmp, sizeof(tmp));
+ }
+
+ {
+ const quint16 count = htons(rects.size());
+ socket->write((char *)&count, sizeof(count));
+ }
+
+ if (rects.size() <= 0) {
+ QWSDisplay::ungrab();
+ return;
+ }
+
+ const QImage screenImage = server->screenImage();
+
+ for (int i = 0; i < rects.size(); ++i) {
+ const QRect tileRect = rects.at(i);
+ const QRfbRect rect(tileRect.x(), tileRect.y(),
+ tileRect.width(), tileRect.height());
+ rect.write(socket);
+
+ const quint32 encoding = htonl(0); // raw encoding
+ socket->write((char *)&encoding, sizeof(encoding));
+
+ int linestep = screenImage.bytesPerLine();
+ const uchar *screendata = screenImage.scanLine(rect.y)
+ + rect.x * screenImage.depth() / 8;
+
+#ifndef QT_NO_QWS_CURSOR
+ // hardware cursors must be blended with the screen memory
+ const bool doBlendCursor = qt_screencursor
+ && !server->hasClientCursor()
+ && qt_screencursor->isAccelerated();
+ QImage tileImage;
+ if (doBlendCursor) {
+ const QRect cursorRect = qt_screencursor->boundingRect()
+ .translated(-server->screen()->offset());
+ if (tileRect.intersects(cursorRect)) {
+ tileImage = screenImage.copy(tileRect);
+ blendCursor(tileImage,
+ tileRect.translated(server->screen()->offset()));
+ screendata = tileImage.bits();
+ linestep = tileImage.bytesPerLine();
+ }
+ }
+#endif // QT_NO_QWS_CURSOR
+
+ if (server->doPixelConversion()) {
+ const int bufferSize = rect.w * rect.h * bytesPerPixel;
+ if (bufferSize > buffer.size())
+ buffer.resize(bufferSize);
+
+ // convert pixels
+ char *b = buffer.data();
+ const int bstep = rect.w * bytesPerPixel;
+ for (int i = 0; i < rect.h; ++i) {
+ server->convertPixels(b, (const char*)screendata, rect.w);
+ screendata += linestep;
+ b += bstep;
+ }
+ socket->write(buffer.constData(), bufferSize);
+ } else {
+ for (int i = 0; i < rect.h; ++i) {
+ socket->write((const char*)screendata, rect.w * bytesPerPixel);
+ screendata += linestep;
+ }
+ }
+ if (socket->state() == QAbstractSocket::UnconnectedState)
+ break;
+ }
+ socket->flush();
+
+ QWSDisplay::ungrab();
+}
+
+inline QImage QVNCServer::screenImage() const
+{
+ return QImage(qvnc_screen->base(), qvnc_screen->deviceWidth(),
+ qvnc_screen->deviceHeight(), qvnc_screen->linestep(),
+ qvnc_screen->pixelFormat());
+}
+
+void QVNCServer::checkUpdate()
+{
+ if (!wantUpdate)
+ return;
+
+ if (dirtyCursor) {
+#ifndef QT_NO_QWS_CURSOR
+ Q_ASSERT(qvnc_cursor);
+ qvnc_cursor->write();
+#endif
+ dirtyCursor = false;
+ wantUpdate = false;
+ return;
+ }
+
+ if (dirtyMap()->numDirty > 0) {
+ if (encoder)
+ encoder->write();
+ wantUpdate = false;
+ }
+}
+
+void QVNCServer::discardClient()
+{
+ timer->stop();
+ state = Unconnected;
+ delete encoder;
+ encoder = 0;
+#ifndef QT_NO_QWS_CURSOR
+ delete qvnc_cursor;
+ qvnc_cursor = 0;
+#endif
+ if (!qvnc_screen->screen() && !qvnc_screen->d_ptr->noDisablePainting)
+ QWSServer::instance()->enablePainting(false);
+}
+
+
+//===========================================================================
+
+/*!
+ \class QVNCScreen
+ \internal
+ \ingroup qws
+
+ \brief The QVNCScreen class implements a screen driver for VNC
+ servers.
+
+ Note that this class is only available in \l{Qt for Embedded Linux}.
+ Custom screen drivers can be added by subclassing the QScreen
+ class, using the QScreenDriverFactory class to dynamically load
+ the driver into the application.
+
+ The VNC protocol allows you to view and interact with the
+ computer's display from anywhere on the network. See the
+ \l{The VNC Protocol and Qt for Embedded Linux}{VNC protocol}
+ documentation for more details.
+
+ The default implementation of QVNCScreen inherits QLinuxFbScreen,
+ but any QScreen subclass, or QScreen itself, can serve as its base
+ class. This is easily achieved by manipulating the \c
+ VNCSCREEN_BASE definition in the header file.
+
+ \sa QScreen, {Running Applications}
+*/
+
+/*!
+ \fn QVNCScreen::QVNCScreen(int displayId)
+
+ Constructs a QVNCScreen object. The \a displayId argument
+ identifies the Qt for Embedded Linux server to connect to.
+*/
+QVNCScreen::QVNCScreen(int display_id)
+ : QProxyScreen(display_id, VNCClass)
+{
+ d_ptr = new QVNCScreenPrivate(this);
+}
+
+/*!
+ Destroys this QVNCScreen object.
+*/
+QVNCScreen::~QVNCScreen()
+{
+ delete d_ptr;
+}
+
+/*!
+ \reimp
+*/
+void QVNCScreen::setDirty(const QRect &rect)
+{
+ d_ptr->setDirty(rect);
+}
+
+void QVNCScreenPrivate::setDirty(const QRect& rect, bool force)
+{
+ if (rect.isEmpty())
+ return;
+
+ if (q_ptr->screen())
+ q_ptr->screen()->setDirty(rect);
+
+ if (!vncServer || !vncServer->isConnected())
+ return;
+
+ const QRect r = rect.translated(-q_ptr->offset());
+ const int x1 = r.x() / MAP_TILE_SIZE;
+ int y = r.y() / MAP_TILE_SIZE;
+ for (; (y <= r.bottom() / MAP_TILE_SIZE) && y < dirty->mapHeight; y++)
+ for (int x = x1; (x <= r.right() / MAP_TILE_SIZE) && x < dirty->mapWidth; x++)
+ dirty->setDirty(x, y, force);
+
+ vncServer->setDirty();
+}
+
+static int getDisplayId(const QString &spec)
+{
+ QRegExp regexp(QLatin1String(":(\\d+)\\b"));
+ if (regexp.lastIndexIn(spec) != -1) {
+ const QString capture = regexp.cap(1);
+ return capture.toInt();
+ }
+ return 0;
+}
+
+/*!
+ \reimp
+*/
+bool QVNCScreen::connect(const QString &displaySpec)
+{
+ QString dspec = displaySpec;
+ if (dspec.startsWith(QLatin1String("vnc:"), Qt::CaseInsensitive))
+ dspec = dspec.mid(QString::fromLatin1("vnc:").size());
+ else if (dspec.compare(QLatin1String("vnc"), Qt::CaseInsensitive) == 0)
+ dspec = QString();
+
+ const QString displayIdSpec = QString::fromLatin1(" :%1").arg(displayId);
+ if (dspec.endsWith(displayIdSpec))
+ dspec = dspec.left(dspec.size() - displayIdSpec.size());
+
+ QStringList args = dspec.split(QLatin1Char(':'),
+ QString::SkipEmptyParts);
+ QRegExp refreshRegexp(QLatin1String("^refreshrate=(\\d+)$"));
+ int index = args.indexOf(refreshRegexp);
+ if (index >= 0) {
+ d_ptr->refreshRate = refreshRegexp.cap(1).toInt();
+ args.removeAt(index);
+ dspec = args.join(QLatin1String(":"));
+ }
+
+ QString driver = dspec;
+ int colon = driver.indexOf(QLatin1Char(':'));
+ if (colon >= 0)
+ driver.truncate(colon);
+
+ if (QScreenDriverFactory::keys().contains(driver, Qt::CaseInsensitive)) {
+ const int id = getDisplayId(dspec);
+ QScreen *s = qt_get_screen(id, dspec.toLatin1().constData());
+ setScreen(s);
+ } else { // create virtual screen
+#if Q_BYTE_ORDER == Q_BIG_ENDIAN
+ QScreen::setFrameBufferLittleEndian(false);
+#endif
+
+ d = qgetenv("QWS_DEPTH").toInt();
+ if (!d)
+ d = 16;
+
+ QByteArray str = qgetenv("QWS_SIZE");
+ if(!str.isEmpty()) {
+ sscanf(str.constData(), "%dx%d", &w, &h);
+ dw = w;
+ dh = h;
+ } else {
+ dw = w = 640;
+ dh = h = 480;
+ }
+
+ const QStringList args = displaySpec.split(QLatin1Char(':'),
+ QString::SkipEmptyParts);
+
+ if (args.contains(QLatin1String("paintonscreen"), Qt::CaseInsensitive))
+ d_ptr->doOnScreenSurface = true;
+
+ QRegExp depthRegexp(QLatin1String("^depth=(\\d+)$"));
+ if (args.indexOf(depthRegexp) != -1)
+ d = depthRegexp.cap(1).toInt();
+
+ QRegExp sizeRegexp(QLatin1String("^size=(\\d+)x(\\d+)$"));
+ if (args.indexOf(sizeRegexp) != -1) {
+ dw = w = sizeRegexp.cap(1).toInt();
+ dh = h = sizeRegexp.cap(2).toInt();
+ }
+
+ // Handle display physical size spec.
+ QRegExp mmWidthRegexp(QLatin1String("^mmWidth=?(\\d+)$"));
+ if (args.indexOf(mmWidthRegexp) != -1) {
+ const int mmWidth = mmWidthRegexp.cap(1).toInt();
+ if (mmWidth > 0)
+ d_ptr->dpiX = dw * 25.4 / mmWidth;
+ }
+ QRegExp mmHeightRegexp(QLatin1String("^mmHeight=?(\\d+)$"));
+ if (args.indexOf(mmHeightRegexp) != -1) {
+ const int mmHeight = mmHeightRegexp.cap(1).toInt();
+ if (mmHeight > 0)
+ d_ptr->dpiY = dh * 25.4 / mmHeight;
+ }
+ QRegExp dpiRegexp(QLatin1String("^dpi=(\\d+)(?:,(\\d+))?$"));
+ if (args.indexOf(dpiRegexp) != -1) {
+ const qreal dpiX = dpiRegexp.cap(1).toFloat();
+ const qreal dpiY = dpiRegexp.cap(2).toFloat();
+ if (dpiX > 0)
+ d_ptr->dpiX = dpiX;
+ d_ptr->dpiY = (dpiY > 0 ? dpiY : dpiX);
+ }
+
+ if (args.contains(QLatin1String("noDisablePainting")))
+ d_ptr->noDisablePainting = true;
+
+ QWSServer::setDefaultMouse("None");
+ QWSServer::setDefaultKeyboard("None");
+
+ d_ptr->configure();
+ }
+
+ // XXX
+ qt_screen = this;
+
+ return true;
+}
+
+/*!
+ \reimp
+*/
+void QVNCScreen::disconnect()
+{
+ QProxyScreen::disconnect();
+#if !defined(QT_NO_QWS_MULTIPROCESS) && !defined(QT_NO_SHAREDMEMORY)
+ d_ptr->shm.detach();
+#endif
+}
+
+/*!
+ \reimp
+*/
+bool QVNCScreen::initDevice()
+{
+ if (!QProxyScreen::screen() && d == 4) {
+ screencols = 16;
+ int val = 0;
+ for (int idx = 0; idx < 16; idx++, val += 17) {
+ screenclut[idx] = qRgb(val, val, val);
+ }
+ }
+ d_ptr->vncServer = new QVNCServer(this, displayId);
+ d_ptr->vncServer->setRefreshRate(d_ptr->refreshRate);
+
+ switch (depth()) {
+#ifdef QT_QWS_DEPTH_32
+ case 32:
+ d_ptr->dirty = new QVNCDirtyMapOptimized<quint32>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_24
+ case 24:
+ d_ptr->dirty = new QVNCDirtyMapOptimized<qrgb888>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_18
+ case 18:
+ d_ptr->dirty = new QVNCDirtyMapOptimized<qrgb666>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_16
+ case 16:
+ d_ptr->dirty = new QVNCDirtyMapOptimized<quint16>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_15
+ case 15:
+ d_ptr->dirty = new QVNCDirtyMapOptimized<qrgb555>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_12
+ case 12:
+ d_ptr->dirty = new QVNCDirtyMapOptimized<qrgb444>(this);
+ break;
+#endif
+#ifdef QT_QWS_DEPTH_8
+ case 8:
+ d_ptr->dirty = new QVNCDirtyMapOptimized<quint8>(this);
+ break;
+#endif
+ default:
+ qWarning("QVNCScreen::initDevice: No support for screen depth %d",
+ depth());
+ d_ptr->dirty = 0;
+ return false;
+ }
+
+
+ const bool ok = QProxyScreen::initDevice();
+#ifndef QT_NO_QWS_CURSOR
+ qt_screencursor = new QVNCCursor(this);
+#endif
+ if (QProxyScreen::screen())
+ return ok;
+
+ // Disable painting if there is only 1 display and nothing is attached to the VNC server
+ if (!d_ptr->noDisablePainting)
+ QWSServer::instance()->enablePainting(false);
+
+ return true;
+}
+
+/*!
+ \reimp
+*/
+void QVNCScreen::shutdownDevice()
+{
+ QProxyScreen::shutdownDevice();
+ delete d_ptr->vncServer;
+ delete d_ptr->dirty;
+}
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_QWS_VNC