diff options
Diffstat (limited to 'src/plugins/gfxdrivers/vnc/qscreenvnc_p.h')
-rw-r--r-- | src/plugins/gfxdrivers/vnc/qscreenvnc_p.h | 524 |
1 files changed, 524 insertions, 0 deletions
diff --git a/src/plugins/gfxdrivers/vnc/qscreenvnc_p.h b/src/plugins/gfxdrivers/vnc/qscreenvnc_p.h new file mode 100644 index 0000000000..9a02072815 --- /dev/null +++ b/src/plugins/gfxdrivers/vnc/qscreenvnc_p.h @@ -0,0 +1,524 @@ +/**************************************************************************** +** +** Copyright (C) 2011 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. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QSCREENVNC_P_H +#define QSCREENVNC_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of the QLibrary class. This header file may change from version to version +// without notice, or even be removed. +// +// We mean it. +// + +#include "qscreenvnc_qws.h" + +#ifndef QT_NO_QWS_VNC + +#include <QtCore/qvarlengtharray.h> +#include <QtCore/qsharedmemory.h> +#include <QtNetwork/qtcpsocket.h> +#include <QtNetwork/qtcpserver.h> + +QT_BEGIN_NAMESPACE + +class QVNCServer; + +#ifndef QT_NO_QWS_CURSOR +class QVNCCursor : public QProxyScreenCursor +{ +public: + QVNCCursor(QVNCScreen *s); + ~QVNCCursor(); + + void hide(); + void show(); + void set(const QImage &image, int hotx, int hoty); + void move(int x, int y); + +private: + void setDirty(const QRect &r) const; + QVNCScreen *screen; +}; + +class QVNCClientCursor : public QProxyScreenCursor +{ +public: + QVNCClientCursor(QVNCServer *s); + ~QVNCClientCursor(); + + void set(const QImage &image, int hotx, int hoty); + void write() const; + +private: + QVNCServer *server; +}; +#endif // QT_NO_QWS_CURSOR + +#define MAP_TILE_SIZE 16 +#define MAP_WIDTH 1280 / MAP_TILE_SIZE +#define MAP_HEIGHT 1024 / MAP_TILE_SIZE + +class QVNCDirtyMap +{ +public: + QVNCDirtyMap(QScreen *screen); + virtual ~QVNCDirtyMap(); + + void reset(); + bool dirty(int x, int y) const; + virtual void setDirty(int x, int y, bool force = false) = 0; + void setClean(int x, int y); + + int bytesPerPixel; + + int numDirty; + int mapWidth; + int mapHeight; + +protected: + uchar *map; + QScreen *screen; + uchar *buffer; + int bufferWidth; + int bufferHeight; + int bufferStride; + int numTiles; +}; + +template <class T> +class QVNCDirtyMapOptimized : public QVNCDirtyMap +{ +public: + QVNCDirtyMapOptimized(QScreen *screen) : QVNCDirtyMap(screen) {} + ~QVNCDirtyMapOptimized() {} + + void setDirty(int x, int y, bool force = false); +}; + +class QRfbRect +{ +public: + QRfbRect() {} + QRfbRect(quint16 _x, quint16 _y, quint16 _w, quint16 _h) { + x = _x; y = _y; w = _w; h = _h; + } + + void read(QTcpSocket *s); + void write(QTcpSocket *s) const; + + quint16 x; + quint16 y; + quint16 w; + quint16 h; +}; + +class QRfbPixelFormat +{ +public: + static int size() { return 16; } + + void read(QTcpSocket *s); + void write(QTcpSocket *s); + + int bitsPerPixel; + int depth; + bool bigEndian; + bool trueColor; + int redBits; + int greenBits; + int blueBits; + int redShift; + int greenShift; + int blueShift; +}; + +class QRfbServerInit +{ +public: + QRfbServerInit() { name = 0; } + ~QRfbServerInit() { delete[] name; } + + int size() const { return QRfbPixelFormat::size() + 8 + strlen(name); } + void setName(const char *n); + + void read(QTcpSocket *s); + void write(QTcpSocket *s); + + quint16 width; + quint16 height; + QRfbPixelFormat format; + char *name; +}; + +class QRfbSetEncodings +{ +public: + bool read(QTcpSocket *s); + + quint16 count; +}; + +class QRfbFrameBufferUpdateRequest +{ +public: + bool read(QTcpSocket *s); + + char incremental; + QRfbRect rect; +}; + +class QRfbKeyEvent +{ +public: + bool read(QTcpSocket *s); + + char down; + int keycode; + int unicode; +}; + +class QRfbPointerEvent +{ +public: + bool read(QTcpSocket *s); + + uint buttons; + quint16 x; + quint16 y; +}; + +class QRfbClientCutText +{ +public: + bool read(QTcpSocket *s); + + quint32 length; +}; + +class QVNCScreenPrivate : public QObject +{ +public: + QVNCScreenPrivate(QVNCScreen *parent); + ~QVNCScreenPrivate(); + + void setDirty(const QRect &rect, bool force = false); + void configure(); + + qreal dpiX; + qreal dpiY; + bool doOnScreenSurface; + QVNCDirtyMap *dirty; + int refreshRate; + QVNCServer *vncServer; + +#if !defined(QT_NO_QWS_MULTIPROCESS) && !defined(QT_NO_SHAREDMEMORY) + QSharedMemory shm; +#endif + + QVNCScreen *q_ptr; + + bool noDisablePainting; +}; + +class QRfbEncoder +{ +public: + QRfbEncoder(QVNCServer *s) : server(s) {} + virtual ~QRfbEncoder() {} + + virtual void write() = 0; + +protected: + QVNCServer *server; +}; + +class QRfbRawEncoder : public QRfbEncoder +{ +public: + QRfbRawEncoder(QVNCServer *s) : QRfbEncoder(s) {} + + void write(); + +private: + QByteArray buffer; +}; + +template <class SRC> class QRfbHextileEncoder; + +template <class SRC> +class QRfbSingleColorHextile +{ +public: + QRfbSingleColorHextile(QRfbHextileEncoder<SRC> *e) : encoder(e) {} + bool read(const uchar *data, int width, int height, int stride); + void write(QTcpSocket *socket) const; + +private: + QRfbHextileEncoder<SRC> *encoder; +}; + +template <class SRC> +class QRfbDualColorHextile +{ +public: + QRfbDualColorHextile(QRfbHextileEncoder<SRC> *e) : encoder(e) {} + bool read(const uchar *data, int width, int height, int stride); + void write(QTcpSocket *socket) const; + +private: + struct Rect { + quint8 xy; + quint8 wh; + } Q_PACKED rects[8 * 16]; + + quint8 numRects; + QRfbHextileEncoder<SRC> *encoder; + +private: + inline int lastx() const { return rectx(numRects); } + inline int lasty() const { return recty(numRects); } + inline int rectx(int r) const { return rects[r].xy >> 4; } + inline int recty(int r) const { return rects[r].xy & 0x0f; } + inline int width(int r) const { return (rects[r].wh >> 4) + 1; } + inline int height(int r) const { return (rects[r].wh & 0x0f) + 1; } + + inline void setX(int r, int x) { + rects[r].xy = (x << 4) | (rects[r].xy & 0x0f); + } + inline void setY(int r, int y) { + rects[r].xy = (rects[r].xy & 0xf0) | y; + } + inline void setWidth(int r, int width) { + rects[r].wh = ((width - 1) << 4) | (rects[r].wh & 0x0f); + } + inline void setHeight(int r, int height) { + rects[r].wh = (rects[r].wh & 0xf0) | (height - 1); + } + + inline void setWidth(int width) { setWidth(numRects, width); } + inline void setHeight(int height) { setHeight(numRects, height); } + inline void setX(int x) { setX(numRects, x); } + inline void setY(int y) { setY(numRects, y); } + void next(); +}; + +template <class SRC> +class QRfbMultiColorHextile +{ +public: + QRfbMultiColorHextile(QRfbHextileEncoder<SRC> *e) : encoder(e) {} + bool read(const uchar *data, int width, int height, int stride); + void write(QTcpSocket *socket) const; + +private: + inline quint8* rect(int r) { + return rects.data() + r * (bpp + 2); + } + inline const quint8* rect(int r) const { + return rects.constData() + r * (bpp + 2); + } + inline void setX(int r, int x) { + quint8 *ptr = rect(r) + bpp; + *ptr = (x << 4) | (*ptr & 0x0f); + } + inline void setY(int r, int y) { + quint8 *ptr = rect(r) + bpp; + *ptr = (*ptr & 0xf0) | y; + } + void setColor(SRC color); + inline int rectx(int r) const { + const quint8 *ptr = rect(r) + bpp; + return *ptr >> 4; + } + inline int recty(int r) const { + const quint8 *ptr = rect(r) + bpp; + return *ptr & 0x0f; + } + inline void setWidth(int r, int width) { + quint8 *ptr = rect(r) + bpp + 1; + *ptr = ((width - 1) << 4) | (*ptr & 0x0f); + } + inline void setHeight(int r, int height) { + quint8 *ptr = rect(r) + bpp + 1; + *ptr = (*ptr & 0xf0) | (height - 1); + } + + bool beginRect(); + void endRect(); + + static const int maxRectsSize = 16 * 16; + QVarLengthArray<quint8, maxRectsSize> rects; + + quint8 bpp; + quint8 numRects; + QRfbHextileEncoder<SRC> *encoder; +}; + +template <class SRC> +class QRfbHextileEncoder : public QRfbEncoder +{ +public: + QRfbHextileEncoder(QVNCServer *s); + void write(); + +private: + enum SubEncoding { + Raw = 1, + BackgroundSpecified = 2, + ForegroundSpecified = 4, + AnySubrects = 8, + SubrectsColoured = 16 + }; + + QByteArray buffer; + QRfbSingleColorHextile<SRC> singleColorHextile; + QRfbDualColorHextile<SRC> dualColorHextile; + QRfbMultiColorHextile<SRC> multiColorHextile; + + SRC bg; + SRC fg; + bool newBg; + bool newFg; + + friend class QRfbSingleColorHextile<SRC>; + friend class QRfbDualColorHextile<SRC>; + friend class QRfbMultiColorHextile<SRC>; +}; + +class QVNCServer : public QObject +{ + Q_OBJECT +public: + QVNCServer(QVNCScreen *screen); + QVNCServer(QVNCScreen *screen, int id); + ~QVNCServer(); + + void setDirty(); + void setDirtyCursor() { dirtyCursor = true; setDirty(); } + inline bool isConnected() const { return state == Connected; } + inline void setRefreshRate(int rate) { refreshRate = rate; } + + enum ClientMsg { SetPixelFormat = 0, + FixColourMapEntries = 1, + SetEncodings = 2, + FramebufferUpdateRequest = 3, + KeyEvent = 4, + PointerEvent = 5, + ClientCutText = 6 }; + + enum ServerMsg { FramebufferUpdate = 0, + SetColourMapEntries = 1 }; + + void convertPixels(char *dst, const char *src, int count) const; + + inline int clientBytesPerPixel() const { + return pixelFormat.bitsPerPixel / 8; + } + + inline QVNCScreen* screen() const { return qvnc_screen; } + inline QVNCDirtyMap* dirtyMap() const { return qvnc_screen->d_ptr->dirty; } + inline QTcpSocket* clientSocket() const { return client; } + QImage screenImage() const; + inline bool doPixelConversion() const { return needConversion; } +#ifndef QT_NO_QWS_CURSOR + inline bool hasClientCursor() const { return qvnc_cursor != 0; } +#endif + +private: + void setPixelFormat(); + void setEncodings(); + void frameBufferUpdateRequest(); + void pointerEvent(); + void keyEvent(); + void clientCutText(); + bool pixelConversionNeeded() const; + +private slots: + void newConnection(); + void readClient(); + void checkUpdate(); + void discardClient(); + +private: + void init(uint port); + enum ClientState { Unconnected, Protocol, Init, Connected }; + QTimer *timer; + QTcpServer *serverSocket; + QTcpSocket *client; + ClientState state; + quint8 msgType; + bool handleMsg; + QRfbPixelFormat pixelFormat; + Qt::KeyboardModifiers keymod; + int encodingsPending; + int cutTextPending; + uint supportCopyRect : 1; + uint supportRRE : 1; + uint supportCoRRE : 1; + uint supportHextile : 1; + uint supportZRLE : 1; + uint supportCursor : 1; + uint supportDesktopSize : 1; + bool wantUpdate; + bool sameEndian; + bool needConversion; +#if Q_BYTE_ORDER == Q_BIG_ENDIAN + bool swapBytes; +#endif + bool dirtyCursor; + int refreshRate; + QVNCScreen *qvnc_screen; +#ifndef QT_NO_QWS_CURSOR + QVNCClientCursor *qvnc_cursor; +#endif + + QRfbEncoder *encoder; +}; + + +QT_END_NAMESPACE +#endif // QT_NO_QWS_VNC +#endif // QSCREENVNC_P_H |