reactos/subsystems/win32/csrss/win32csr/conio.h

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS system libraries
   5  * FILE:            subsys/csrss/include/conio.h
   6  * PURPOSE:         CSRSS internal console I/O interface
   7  */
   8
   9 #pragma once
  10
  11 #include "api.h"
  12 #include "win32csr.h"
  13
  14 #define CSR_DEFAULT_CURSOR_SIZE 25
  15
  16 /* Object type magic numbers */
  17
  18 #define CONIO_CONSOLE_MAGIC         0x00000001
  19 #define CONIO_SCREEN_BUFFER_MAGIC   0x00000002
  20
  21 /************************************************************************
  22  * Screen buffer structure represents the win32 screen buffer object.   *
  23  * Internally, the portion of the buffer being shown CAN loop past the  *
  24  * bottom of the virtual buffer and wrap around to the top.  Win32 does *
  25  * not do this.  I decided to do this because it eliminates the need to *
  26  * do a massive memcpy() to scroll the contents of the buffer up to     *
  27  * scroll the screen on output, instead I just shift down the position  *
  28  * to be displayed, and let it wrap around to the top again.            *
  29  * The VirtualY member keeps track of the top Y coord that win32        *
  30  * clients THINK is currently being displayed, because they think that  *
  31  * when the display reaches the bottom of the buffer and another line   *
  32  * being printed causes another line to scroll down, that the buffer IS *
  33  * memcpy()'s up, and the bottom of the buffer is still displayed, but  *
  34  * internally, I just wrap back to the top of the buffer.               *
  35  ***********************************************************************/
  36
  37 typedef struct tagCSRSS_SCREEN_BUFFER
  38 {
  39   Object_t Header;                 /* Object header */
  40   BYTE *Buffer;                    /* pointer to screen buffer */
  41   USHORT MaxX, MaxY;               /* size of the entire scrollback buffer */
  42   USHORT ShowX, ShowY;             /* beginning offset for the actual display area */
  43   ULONG CurrentX;                  /* Current X cursor position */
  44   ULONG CurrentY;                  /* Current Y cursor position */
  45   WORD DefaultAttrib;              /* default char attribute */
  46   USHORT VirtualY;                 /* top row of buffer being displayed, reported to callers */
  47   CONSOLE_CURSOR_INFO CursorInfo;
  48   USHORT Mode;
  49 } CSRSS_SCREEN_BUFFER, *PCSRSS_SCREEN_BUFFER;
  50
  51 typedef struct tagCSRSS_CONSOLE *PCSRSS_CONSOLE;
  52
  53 typedef struct tagCSRSS_CONSOLE_VTBL
  54 {
  55   VOID (WINAPI *InitScreenBuffer)(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER ScreenBuffer);
  56   VOID (WINAPI *WriteStream)(PCSRSS_CONSOLE Console, RECT *Block, LONG CursorStartX, LONG CursorStartY,
  57                               UINT ScrolledLines, CHAR *Buffer, UINT Length);
  58   VOID (WINAPI *DrawRegion)(PCSRSS_CONSOLE Console, RECT *Region);
  59   BOOL (WINAPI *SetCursorInfo)(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER ScreenBuffer);
  60   BOOL (WINAPI *SetScreenInfo)(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER ScreenBuffer,
  61                                 UINT OldCursorX, UINT OldCursorY);
  62   BOOL (WINAPI *UpdateScreenInfo)(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER ScreenBuffer);
  63   BOOL (WINAPI *ChangeTitle)(PCSRSS_CONSOLE Console);
  64   VOID (WINAPI *CleanupConsole)(PCSRSS_CONSOLE Console);
  65   BOOL (WINAPI *ChangeIcon)(PCSRSS_CONSOLE Console, HICON hWindowIcon);
  66   NTSTATUS (WINAPI *ResizeBuffer)(PCSRSS_CONSOLE Console, PCSRSS_SCREEN_BUFFER ScreenBuffer, COORD Size);
  67 } CSRSS_CONSOLE_VTBL, *PCSRSS_CONSOLE_VTBL;
  68
  69 typedef struct tagCSRSS_CONSOLE
  70 {
  71   Object_t Header;                      /* Object header */
  72   LONG ReferenceCount;
  73   CRITICAL_SECTION Lock;
  74   PCSRSS_CONSOLE Prev, Next;            /* Next and Prev consoles in console wheel */
  75   HANDLE ActiveEvent;
  76   LIST_ENTRY InputEvents;               /* List head for input event queue */
  77   WORD WaitingChars;
  78   WORD WaitingLines;                    /* number of chars and lines in input queue */
  79   PCSRSS_SCREEN_BUFFER ActiveBuffer;    /* Pointer to currently active screen buffer */
  80   WORD Mode;                            /* Console mode flags */
  81   WORD EchoCount;                       /* count of chars to echo, in line buffered mode */
  82   UNICODE_STRING Title;                 /* Title of console */
  83   BOOL EarlyReturn;                     /* wake client and return data, even if we are in line buffered mode, and we don't have a complete line */
  84   DWORD HardwareState;                  /* _GDI_MANAGED, _DIRECT */
  85   HWND hWindow;
  86   COORD Size;
  87   PVOID PrivateData;
  88   UINT CodePage;
  89   UINT OutputCodePage;
  90   PCSRSS_CONSOLE_VTBL Vtbl;
  91   LIST_ENTRY ProcessList;
  92   struct tagALIAS_HEADER *Aliases;
  93 } CSRSS_CONSOLE;
  94
  95 typedef struct ConsoleInput_t
  96 {
  97   LIST_ENTRY ListEntry;
  98   INPUT_RECORD InputEvent;
  99   BOOLEAN Echoed;        // already been echoed or not
 100   BOOLEAN Fake;          // synthesized, not a real event
 101   BOOLEAN NotChar;       // message should not be used to return a character
 102 } ConsoleInput;
 103
 104 NTSTATUS FASTCALL ConioConsoleFromProcessData(PCSRSS_PROCESS_DATA ProcessData, PCSRSS_CONSOLE *Console);
 105 VOID WINAPI ConioDeleteConsole(Object_t *Object);
 106 VOID WINAPI ConioDeleteScreenBuffer(Object_t *Buffer);
 107 VOID WINAPI CsrInitConsoleSupport(VOID);
 108 void WINAPI ConioProcessKey(MSG *msg, PCSRSS_CONSOLE Console, BOOL TextMode);
 109 PBYTE FASTCALL ConioCoordToPointer(PCSRSS_SCREEN_BUFFER Buf, ULONG X, ULONG Y);
 110 VOID FASTCALL ConioDrawConsole(PCSRSS_CONSOLE Console);
 111 VOID FASTCALL ConioConsoleCtrlEvent(DWORD Event, PCSRSS_PROCESS_DATA ProcessData);
 112 VOID FASTCALL ConioConsoleCtrlEventTimeout(DWORD Event, PCSRSS_PROCESS_DATA ProcessData,
 113                                            DWORD Timeout);
 114
 115 /* api/conio.c */
 116 CSR_API(CsrWriteConsole);
 117 CSR_API(CsrAllocConsole);
 118 CSR_API(CsrFreeConsole);
 119 CSR_API(CsrReadConsole);
 120 CSR_API(CsrConnectProcess);
 121 CSR_API(CsrGetScreenBufferInfo);
 122 CSR_API(CsrSetCursor);
 123 CSR_API(CsrFillOutputChar);
 124 CSR_API(CsrReadInputEvent);
 125 CSR_API(CsrWriteConsoleOutputChar);
 126 CSR_API(CsrWriteConsoleOutputAttrib);
 127 CSR_API(CsrFillOutputAttrib);
 128 CSR_API(CsrGetCursorInfo);
 129 CSR_API(CsrSetCursorInfo);
 130 CSR_API(CsrSetTextAttrib);
 131 CSR_API(CsrSetConsoleMode);
 132 CSR_API(CsrGetConsoleMode);
 133 CSR_API(CsrCreateScreenBuffer);
 134 CSR_API(CsrSetScreenBuffer);
 135 CSR_API(CsrSetTitle);
 136 CSR_API(CsrGetTitle);
 137 CSR_API(CsrWriteConsoleOutput);
 138 CSR_API(CsrFlushInputBuffer);
 139 CSR_API(CsrScrollConsoleScreenBuffer);
 140 CSR_API(CsrReadConsoleOutputChar);
 141 CSR_API(CsrReadConsoleOutputAttrib);
 142 CSR_API(CsrGetNumberOfConsoleInputEvents);
 143 CSR_API(CsrPeekConsoleInput);
 144 CSR_API(CsrReadConsoleOutput);
 145 CSR_API(CsrWriteConsoleInput);
 146 CSR_API(CsrHardwareStateProperty);
 147 CSR_API(CsrGetConsoleWindow);
 148 CSR_API(CsrSetConsoleIcon);
 149 CSR_API(CsrGetConsoleCodePage);
 150 CSR_API(CsrSetConsoleCodePage);
 151 CSR_API(CsrGetConsoleOutputCodePage);
 152 CSR_API(CsrSetConsoleOutputCodePage);
 153 CSR_API(CsrGetProcessList);
 154 CSR_API(CsrGenerateCtrlEvent);
 155 CSR_API(CsrSetScreenBufferSize);
 156
 157 #define ConioInitScreenBuffer(Console, Buff) (Console)->Vtbl->InitScreenBuffer((Console), (Buff))
 158 #define ConioDrawRegion(Console, Region) (Console)->Vtbl->DrawRegion((Console), (Region))
 159 #define ConioWriteStream(Console, Block, CurStartX, CurStartY, ScrolledLines, Buffer, Length) \
 160           (Console)->Vtbl->WriteStream((Console), (Block), (CurStartX), (CurStartY), \
 161                                        (ScrolledLines), (Buffer), (Length))
 162 #define ConioSetCursorInfo(Console, Buff) (Console)->Vtbl->SetCursorInfo((Console), (Buff))
 163 #define ConioSetScreenInfo(Console, Buff, OldCursorX, OldCursorY) \
 164           (Console)->Vtbl->SetScreenInfo((Console), (Buff), (OldCursorX), (OldCursorY))
 165 #define ConioUpdateScreenInfo(Console, Buff) \
 166           (Console)->Vtbl->UpdateScreenInfo(Console, Buff)
 167 #define ConioChangeTitle(Console) (Console)->Vtbl->ChangeTitle(Console)
 168 #define ConioCleanupConsole(Console) (Console)->Vtbl->CleanupConsole(Console)
 169 #define ConioChangeIcon(Console, hWindowIcon) (Console)->Vtbl->ChangeIcon(Console, hWindowIcon)
 170 #define ConioResizeBuffer(Console, Buff, Size) (Console)->Vtbl->ResizeBuffer(Console, Buff, Size)
 171
 172 #define ConioRectHeight(Rect) \
 173     (((Rect)->top) > ((Rect)->bottom) ? 0 : ((Rect)->bottom) - ((Rect)->top) + 1)
 174 #define ConioRectWidth(Rect) \
 175     (((Rect)->left) > ((Rect)->right) ? 0 : ((Rect)->right) - ((Rect)->left) + 1)
 176
 177 #define ConioLockConsole(ProcessData, Handle, Ptr, Access) \
 178     Win32CsrLockObject((ProcessData), (Handle), (Object_t **)(Ptr), Access, CONIO_CONSOLE_MAGIC)
 179 #define ConioUnlockConsole(Console) \
 180     Win32CsrUnlockObject((Object_t *) Console)
 181 #define ConioLockScreenBuffer(ProcessData, Handle, Ptr, Access) \
 182     Win32CsrLockObject((ProcessData), (Handle), (Object_t **)(Ptr), Access, CONIO_SCREEN_BUFFER_MAGIC)
 183 #define ConioUnlockScreenBuffer(Buff) \
 184     Win32CsrUnlockObject((Object_t *) Buff)
 185
 186 /* alias.c */
 187 VOID IntDeleteAllAliases(struct tagALIAS_HEADER *RootHeader);
 188 CSR_API(CsrAddConsoleAlias);
 189 CSR_API(CsrGetConsoleAlias);
 190 CSR_API(CsrGetAllConsoleAliases);
 191 CSR_API(CsrGetAllConsoleAliasesLength);
 192 CSR_API(CsrGetConsoleAliasesExes);
 193 CSR_API(CsrGetConsoleAliasesExesLength);
 194
 195 /* EOF */