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// Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
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// This file is part of the VNC system.
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// The VNC system is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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// TightVNC distribution homepage on the Web: http://www.tightvnc.com/
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// If the source code for the VNC system is not available from the place
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// whence you received this file, check http://www.uk.research.att.com/vnc or contact
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// the authors on vnc@uk.research.att.com for information on obtaining it.
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// The vncDesktop object handles retrieval of data from the
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// display buffer. It also uses the RFBLib DLL to supply
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// information on mouse movements and screen updates to
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#if !defined(_WINVNC_VNCDESKTOP)
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#define _WINVNC_VNCDESKTOP
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#include "vncServer.h"
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#include "vncRegion.h"
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#include "translate.h"
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#include <omnithread.h>
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#include "VideoDriver.h"
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extern const UINT RFB_SCREEN_UPDATE;
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extern const UINT RFB_COPYRECT_UPDATE;
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extern const UINT RFB_MOUSE_UPDATE;
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extern const char szDesktopSink[];
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#define MAX_REG_ENTRY_LEN (80)
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// Make the desktop thread & window proc friends
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friend class vncDesktopThread;
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friend LRESULT CALLBACK DesktopWndProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp);
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// Create/Destroy methods
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BOOL Init(vncServer *pSrv);
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void TryActivateHooks();
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BOOL DriverActive() { return m_videodriver != NULL; }
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// Routine to signal a vncServer to trigger an update
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// Screen translation, capture, info
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void FillDisplayInfo(rfbServerInitMsg *scrInfo);
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void SetLocalInputDisableHook(BOOL enable);
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void SetLocalInputPriorityHook(BOOL enable);
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void CaptureScreen(const RECT &UpdateArea, BYTE *scrBuff);
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void CaptureScreenFromAdapterGeneral(RECT UpdateArea, BYTE *scrBuff);
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void CaptureScreenFromMirage(RECT UpdateArea, BYTE *scrBuff);
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HWND Window() { return m_hwnd; }
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void CaptureMouse(BYTE *scrBuff, UINT scrBuffSize);
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void CaptureMouseRect();
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BOOL GetRichCursorData(BYTE *databuf, HCURSOR hcursor, int width, int height);
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void SetCursor(HCURSOR cursor);
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HCURSOR GetCursor() { return m_hcursor; }
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// created for debug purposes. not used in normal builds.
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bool bDbgDumpSurfBuffers(const RECT &rcl);
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// Clipboard manipulation
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static void ConvertClipText(char *dst, const char *src);
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void SetClipText(LPSTR text);
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// Method to obtain the DIBsection buffer if fast blits are enabled
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// If they're disabled, it'll return NULL
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inline BYTE *MainBuffer() { return m_mainbuff; }
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inline RECT MainBufferRect() { return m_bmrect; }
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void CopyRect(RECT const& dest, POINT source);
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BOOL m_initialClipBoardSeen;
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// Routines to hook and unhook us
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void ActivateHooks();
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void ShutdownHooks();
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// Init routines called by the child thread
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void KillScreenSaver();
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RECT GetSourceRect();
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BOOL GetSourceDisplayRect(RECT &rdisp_rect);
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static BOOL IsMultiMonDesktop();
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void SetupDisplayForConnection();
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void ResetDisplayToNormal();
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BOOL ThunkBitmapInfo();
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void CopyToBuffer(RECT rect, BYTE *scrBuff);
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void CopyToBuffer(RECT rect, BYTE *scrBuff, const BYTE *SourceBuff);
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void CopyRectToBuffer(RECT dest, POINT source);
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void CalcCopyRects();
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// Routine to attempt enabling optimised DIBsection blits
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BOOL CreateBuffers();
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// Convert a bit mask eg. 00111000 to max=7, shift=3
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static void MaskToMaxAndShift(DWORD mask, CARD16 &max, CARD8 &shift);
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// Enabling & disabling clipboard handling
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void SetClipboardActive(BOOL active) {m_clipboard_active = active;};
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void SetPollingTimer();
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void SetPollingFlag(BOOL set) { m_polling_flag = set; }
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BOOL GetPollingFlag() { return m_polling_flag; }
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void PerformPolling();
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void PollWindow(HWND hwnd);
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void PollArea(const RECT &rect);
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void CheckRects(vncRegion &rgn, rectlist &rects);
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void GetChangedRegion_Normal(vncRegion &rgn, const RECT &rect);
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void GetChangedRegion_Dummy(vncRegion &rgn, const RECT &rect);
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void GetChangedRegion(vncRegion &rgn, const RECT &rect)
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GetChangedRegion_Normal(rgn, rect);
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GetChangedRegion_Dummy(rgn, rect);
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void UpdateChangedRect(vncRegion &rgn, const RECT &rect);
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void UpdateChangedSubRect(vncRegion &rgn, const RECT &rect);
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// Blank screen feature
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void UpdateBlankScreenTimer();
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void BlankScreen(BOOL set);
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// Timer identifiers (the third one is not used in any real timer)
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TIMER_BLANK_SCREEN = 2,
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TIMER_RESTORE_SCREEN = 3
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// Video driver stuff
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BOOL InitVideoDriver();
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void ShutdownVideoDriver();
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// Generally useful stuff
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omni_thread *m_thread;
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UINT m_timer_polling;
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UINT m_timer_blank_screen;
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BOOL m_clipboard_active;
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BOOL m_hooks_may_change;
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// Video driver stuff
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vncVideoDriver *m_videodriver;
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// device contexts for memory and the screen
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// New and old bitmaps
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omni_mutex m_bitbltlock;
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// frame buffer relative to the entire (virtual) desktop.
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// NOTE: non-zero offsets possible
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// Colormap info - comes straight after BITMAPINFO - **HACK**
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rfbServerInitMsg m_scrinfo;
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// These are the red, green & blue masks for a pixel
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DWORD m_rMask, m_gMask, m_bMask;
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// This is always handy to have
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// Handle of the default cursor
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// Handle of the basic arrow cursor
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HCURSOR m_hdefcursor;
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// The current mouse position
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// Boolean flag to indicate when the display resolution has changed
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BOOL m_displaychanged;
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// Extra vars used for the DIBsection optimisation
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// DevMode alteration
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DEVMODE *m_lpAlternateDevMode; // *** used for res changes - Jeremy Peaks
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long origPelsWidth; // *** To set the original resolution
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long origPelsHeight; // *** - Jeremy Peaks
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vncRegion m_changed_rgn;
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RECT m_copyrect_rect;
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POINT m_copyrect_src;
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static const int m_pollingOrder[32];
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static int m_pollingStep;
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#endif // _WINVNC_VNCDESKTOP
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ica/win32/src/vncDesktop.h
