2 * Acess2 Virtual Terminal Driver
8 #include <tpl_drv_video.h>
9 #include <tpl_drv_keyboard.h>
10 #include <tpl_drv_terminal.h>
13 #define USE_CTRL_ALT 0
16 #define VERSION ((0<<8)|(50))
19 #define MAX_INPUT_CHARS32 64
20 #define MAX_INPUT_CHARS8 (MAX_INPUT_CHARS32*4)
21 //#define DEFAULT_OUTPUT "BochsGA"
22 #define DEFAULT_OUTPUT "Vesa"
23 #define DEFAULT_INPUT "PS2Keyboard"
24 #define DEFAULT_WIDTH 640
25 #define DEFAULT_HEIGHT 480
26 #define DEFAULT_SCROLLBACK 2 // 2 Screens of text + current screen
27 #define DEFAULT_COLOUR (VT_COL_BLACK|(0xAAA<<16))
29 #define VT_FLAG_HIDECSR 0x01
30 #define VT_FLAG_HASFB 0x10 //!< Set if the VTerm has requested the Framebuffer
33 VT_INMODE_TEXT8, // UTF-8 Text Mode (VT100/xterm Emulation)
34 VT_INMODE_TEXT32, // UTF-32 Text Mode (Acess Native)
40 int Mode; //!< Current Mode (see ::eTplTerminal_Modes)
41 int Flags; //!< Flags (see VT_FLAG_*)
43 short NewWidth; //!< Un-applied dimensions (Width)
44 short NewHeight; //!< Un-applied dimensions (Height)
45 short Width; //!< Virtual Width
46 short Height; //!< Virtual Height
47 short TextWidth; //!< Text Virtual Width
48 short TextHeight; //!< Text Virtual Height
50 int ViewPos; //!< View Buffer Offset (Text Only)
51 int WritePos; //!< Write Buffer Offset (Text Only)
52 Uint32 CurColour; //!< Current Text Colour
54 tMutex ReadingLock; //!< Lock the VTerm when a process is reading from it
55 tTID ReadingThread; //!< Owner of the lock
56 int InputRead; //!< Input buffer read position
57 int InputWrite; //!< Input buffer write position
58 char InputBuffer[MAX_INPUT_CHARS8];
63 char Name[2]; //!< Name of the terminal
68 extern void Debug_SetKTerminal(const char *File);
71 int VT_Install(char **Arguments);
72 void VT_InitOutput(void);
73 void VT_InitInput(void);
74 char *VT_ReadDir(tVFS_Node *Node, int Pos);
75 tVFS_Node *VT_FindDir(tVFS_Node *Node, const char *Name);
76 int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data);
77 Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
78 Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
79 int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data);
80 void VT_SetResolution(int Width, int Height);
81 void VT_SetMode(int Mode);
82 void VT_SetTerminal(int ID);
83 void VT_KBCallBack(Uint32 Codepoint);
84 void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count);
85 void VT_int_ClearLine(tVTerm *Term, int Num);
86 int VT_int_ParseEscape(tVTerm *Term, char *Buffer);
87 void VT_int_PutChar(tVTerm *Term, Uint32 Ch);
88 void VT_int_ScrollFramebuffer( tVTerm *Term );
89 void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll );
90 void VT_int_ChangeMode(tVTerm *Term, int NewMode, int NewWidth, int NewHeight);
93 const Uint16 caVT100Colours[] = {
94 // Black, Red, Green, Yellow, Blue, Purple, Cyan, Gray
95 // Same again, but bright
96 VT_COL_BLACK, 0x700, 0x070, 0x770, 0x007, 0x707, 0x077, 0xAAA,
97 VT_COL_GREY, 0xF00, 0x0F0, 0xFF0, 0x00F, 0xF0F, 0x0FF, VT_COL_WHITE
101 MODULE_DEFINE(0, VERSION, VTerm, VT_Install, NULL, DEFAULT_OUTPUT, DEFAULT_INPUT, NULL);
102 tDevFS_Driver gVT_DrvInfo = {
105 .Flags = VFS_FFLAG_DIRECTORY,
109 .ReadDir = VT_ReadDir,
110 .FindDir = VT_FindDir,
111 .IOCtl = VT_Root_IOCtl
115 tVTerm gVT_Terminals[NUM_VTS];
116 int giVT_CurrentTerminal = 0;
117 tVTerm *gpVT_CurTerm = &gVT_Terminals[0];
118 // --- Video State ---
119 short giVT_RealWidth = DEFAULT_WIDTH; //!< Screen Width
120 short giVT_RealHeight = DEFAULT_HEIGHT; //!< Screen Height
121 int giVT_Scrollback = DEFAULT_SCROLLBACK;
122 // --- Driver Handles ---
123 char *gsVT_OutputDevice = NULL;
124 char *gsVT_InputDevice = NULL;
125 int giVT_OutputDevHandle = -2;
126 int giVT_InputDevHandle = -2;
127 // --- Key States --- (Used for VT Switching/Magic Combos)
128 int gbVT_CtrlDown = 0;
129 int gbVT_AltDown = 0;
130 int gbVT_SysrqDown = 0;
134 * \fn int VT_Install(char **Arguments)
135 * \brief Installs the Virtual Terminal Driver
137 int VT_Install(char **Arguments)
146 for(args = Arguments; (arg = *args); args++ )
148 char data[strlen(arg)+1];
152 val = strchr(arg, '=');
155 data[ val - arg ] = '\0';
158 Log_Debug("VTerm", "Argument '%s'", arg);
160 if( strcmp(opt, "Video") == 0 ) {
161 gsVT_OutputDevice = strdup(val);
163 else if( strcmp(opt, "Input") == 0 ) {
164 gsVT_InputDevice = strdup(val);
166 else if( strcmp(opt, "Width") == 0 ) {
167 giVT_RealWidth = atoi( val );
169 else if( strcmp(opt, "Height") == 0 ) {
170 giVT_RealHeight = atoi( val );
172 else if( strcmp(opt, "Scrollback") == 0 ) {
173 giVT_Scrollback = atoi( val );
178 if(gsVT_OutputDevice) Modules_InitialiseBuiltin( gsVT_OutputDevice );
179 if(gsVT_InputDevice) Modules_InitialiseBuiltin( gsVT_InputDevice );
182 if(!gsVT_OutputDevice) gsVT_OutputDevice = strdup(DEFAULT_OUTPUT);
183 if(!gsVT_InputDevice) gsVT_InputDevice = strdup(DEFAULT_INPUT);
188 tmp = malloc( 9 + strlen(gsVT_OutputDevice) + 1 );
189 strcpy(tmp, "/Devices/");
190 strcpy(&tmp[9], gsVT_OutputDevice);
191 gsVT_OutputDevice = tmp;
192 tmp = malloc( 9 + strlen(gsVT_InputDevice) + 1 );
193 strcpy(tmp, "/Devices/");
194 strcpy(&tmp[9], gsVT_InputDevice);
195 gsVT_InputDevice = tmp;
198 Log_Log("VTerm", "Using '%s' as output", gsVT_OutputDevice);
199 Log_Log("VTerm", "Using '%s' as input", gsVT_InputDevice);
202 for( i = 0; i < NUM_VTS; i++ )
204 gVT_Terminals[i].Mode = TERM_MODE_TEXT;
205 gVT_Terminals[i].Flags = 0;
206 gVT_Terminals[i].CurColour = DEFAULT_COLOUR;
207 gVT_Terminals[i].WritePos = 0;
208 gVT_Terminals[i].ViewPos = 0;
209 gVT_Terminals[i].ReadingThread = -1;
212 VT_int_ChangeMode( &gVT_Terminals[i],
213 TERM_MODE_TEXT, giVT_RealWidth, giVT_RealHeight );
215 gVT_Terminals[i].Name[0] = '0'+i;
216 gVT_Terminals[i].Name[1] = '\0';
217 gVT_Terminals[i].Node.Inode = i;
218 gVT_Terminals[i].Node.ImplPtr = &gVT_Terminals[i];
219 gVT_Terminals[i].Node.NumACLs = 0; // Only root can open virtual terminals
221 gVT_Terminals[i].Node.Read = VT_Read;
222 gVT_Terminals[i].Node.Write = VT_Write;
223 gVT_Terminals[i].Node.IOCtl = VT_Terminal_IOCtl;
227 DevFS_AddDevice( &gVT_DrvInfo );
232 // Set kernel output to VT0
233 Debug_SetKTerminal("/Devices/VTerm/0");
235 Log_Log("VTerm", "Returning %i", MODULE_ERR_OK);
236 return MODULE_ERR_OK;
240 * \fn void VT_InitOutput()
241 * \brief Initialise Video Output
245 giVT_OutputDevHandle = VFS_Open(gsVT_OutputDevice, VFS_OPENFLAG_WRITE);
246 if(giVT_OutputDevHandle == -1) {
247 Log_Warning("VTerm", "Oh F**k, I can't open the video device '%s'", gsVT_OutputDevice);
250 VT_SetResolution( giVT_RealWidth, giVT_RealHeight );
252 VT_SetMode( VIDEO_BUFFMT_TEXT );
256 * \fn void VT_InitInput()
257 * \brief Initialises the input
261 giVT_InputDevHandle = VFS_Open(gsVT_InputDevice, VFS_OPENFLAG_READ);
262 if(giVT_InputDevHandle == -1) {
263 Log_Warning("VTerm", "Can't open the input device '%s'", gsVT_InputDevice);
266 VFS_IOCtl(giVT_InputDevHandle, KB_IOCTL_SETCALLBACK, VT_KBCallBack);
270 * \brief Set the video resolution
271 * \param Width New screen width
272 * \param Height New screen height
274 void VT_SetResolution(int Width, int Height)
276 tVideo_IOCtl_Mode mode = {0};
280 // Create the video mode
282 mode.height = Height;
287 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_FINDMODE, &mode );
289 if( Width != mode.width || Height != mode.height )
292 "Selected resolution (%ix%i is not supported) by the device, using (%ix%i)",
293 giVT_RealWidth, giVT_RealHeight,
294 mode.width, mode.height
297 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_GETSETMODE, &tmp );
299 // Resize text terminals if needed
300 if( giVT_RealWidth != mode.width || giVT_RealHeight != mode.height )
302 int newBufSize = (giVT_RealWidth/giVT_CharWidth)
303 *(giVT_RealHeight/giVT_CharHeight)
304 *(giVT_Scrollback+1);
306 // Resize the text terminals
307 giVT_RealWidth = mode.width;
308 giVT_RealHeight = mode.height;
309 for( i = 0; i < NUM_VTS; i ++ )
311 if( gVT_Terminals[i].Mode != TERM_MODE_TEXT ) continue;
313 gVT_Terminals[i].Text = realloc(
314 gVT_Terminals[i].Text,
315 newBufSize*sizeof(tVT_Char)
322 * \brief Set video output buffer mode
324 void VT_SetMode(int Mode)
326 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &Mode );
330 * \fn char *VT_ReadDir(tVFS_Node *Node, int Pos)
331 * \brief Read from the VTerm Directory
333 char *VT_ReadDir(tVFS_Node *Node, int Pos)
335 if(Pos < 0) return NULL;
336 if(Pos >= NUM_VTS) return NULL;
337 return strdup( gVT_Terminals[Pos].Name );
341 * \fn tVFS_Node *VT_FindDir(tVFS_Node *Node, const char *Name)
342 * \brief Find an item in the VTerm directory
343 * \param Node Root node
344 * \param Name Name (number) of the terminal
346 tVFS_Node *VT_FindDir(tVFS_Node *Node, const char *Name)
350 ENTER("pNode sName", Node, Name);
352 // Open the input and output files if needed
353 if(giVT_OutputDevHandle == -2) VT_InitOutput();
354 if(giVT_InputDevHandle == -2) VT_InitInput();
357 if(Name[0] < '0' || Name[0] > '9' || Name[1] != '\0') {
368 LEAVE('p', &gVT_Terminals[num].Node);
369 return &gVT_Terminals[num].Node;
373 * \fn int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
374 * \brief Control the VTerm Driver
376 int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
381 case DRV_IOCTL_TYPE: return DRV_TYPE_MISC;
382 case DRV_IOCTL_IDENT: memcpy(Data, "VT\0\0", 4); return 0;
383 case DRV_IOCTL_VERSION: return VERSION;
384 case DRV_IOCTL_LOOKUP: return 0;
386 case 4: // Get Video Driver
387 if(Data) strcpy(Data, gsVT_OutputDevice);
388 return strlen(gsVT_OutputDevice);
390 case 5: // Set Video Driver
391 if(!Data) return -EINVAL;
392 if(Threads_GetUID() != 0) return -EACCES;
396 // TODO: Check if the string used is a heap string
398 free(gsVT_OutputDevice);
400 gsVT_OutputDevice = malloc(len+1);
401 strcpy(gsVT_OutputDevice, Data);
403 VFS_Close(giVT_OutputDevHandle);
404 giVT_OutputDevHandle = -1;
413 * \fn Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
414 * \brief Read from a virtual terminal
416 Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
419 tVTerm *term = &gVT_Terminals[ Node->Inode ];
421 Mutex_Acquire( &term->ReadingLock );
422 term->ReadingThread = Threads_GetTID();
424 // Check current mode
431 //TODO: Sleep instead
432 while(term->InputRead == term->InputWrite) Threads_Sleep();
434 ((char*)Buffer)[pos] = term->InputBuffer[term->InputRead];
437 term->InputRead %= MAX_INPUT_CHARS8;
446 while(term->InputRead == term->InputWrite) Threads_Sleep();
447 ((Uint32*)Buffer)[pos] = ((Uint32*)term->InputBuffer)[term->InputRead];
450 term->InputRead %= MAX_INPUT_CHARS32;
455 term->ReadingThread = -1;
456 Mutex_Release( &term->ReadingLock );
462 * \fn Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
463 * \brief Write to a virtual terminal
465 Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
467 tVTerm *term = &gVT_Terminals[ Node->Inode ];
475 VT_int_PutString(term, Buffer, Length);
481 size = term->Width*term->Height*4;
482 if( Offset > size ) {
483 Log_Notice("VTerm", "VT_Write: Offset (0x%llx) > FBSize (0x%x)",
487 if( Offset + Length > size ) {
488 Log_Notice("VTerm", "VT_Write: Offset+Length (0x%llx) > FBSize (0x%x)",
489 Offset+Length, size);
490 Length = size - Offset;
493 // Copy to the local cache
494 memcpy( (void*)((Uint)term->Buffer + (Uint)Offset), Buffer, Length );
496 // Update screen if needed
497 if( Node->Inode == giVT_CurrentTerminal )
499 // Fill entire screen?
500 if( giVT_RealWidth > term->Width || giVT_RealHeight > term->Height )
502 // No? :( Well, just center it
504 x = Offset/4; y = x / term->Width; x %= term->Width;
505 w = Length/4+x; h = w / term->Width; w %= term->Width;
507 x += (giVT_RealWidth - term->Width) / 2;
508 y += (giVT_RealHeight - term->Height) / 2;
511 VFS_WriteAt( giVT_OutputDevHandle,
512 (x + y * giVT_RealWidth)*4,
516 Buffer = (void*)( (Uint)Buffer + term->Width*4 );
522 return VFS_WriteAt( giVT_OutputDevHandle, Offset, Length, Buffer );
525 // Just pass on (for now)
526 // TODO: Handle locally too to ensure no information is lost on
527 // VT Switch (and to isolate terminals from each other)
528 case TERM_MODE_2DACCEL:
529 //case TERM_MODE_3DACCEL:
530 if( Node->Inode == giVT_CurrentTerminal )
532 VFS_Write( giVT_OutputDevHandle, Length, Buffer );
541 * \fn int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
542 * \brief Call an IO Control on a virtual terminal
544 int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
548 tVTerm *term = Node->ImplPtr;
549 ENTER("pNode iId pData", Node, Id, Data);
551 if(Id >= DRV_IOCTL_LOOKUP) {
552 // Only root can fiddle with graphics modes
553 // TODO: Remove this and replace with user ownership
554 if( Threads_GetUID() != 0 ) return -1;
561 LEAVE('i', DRV_TYPE_TERMINAL);
562 return DRV_TYPE_TERMINAL;
563 case DRV_IOCTL_IDENT:
564 memcpy(Data, "VT\0\0", 4);
567 case DRV_IOCTL_VERSION:
570 case DRV_IOCTL_LOOKUP:
574 // Get/Set the mode (and apply any changes)
575 case TERM_IOCTL_MODETYPE:
578 if( CheckMem(Data, sizeof(int)) == 0 ) {
582 Log_Log("VTerm", "VTerm %i mode set to %i", (int)Node->Inode, *iData);
584 // Update mode if needed
585 if( term->Mode != *iData
589 // Adjust for text mode
590 if( *iData == TERM_MODE_TEXT ) {
591 term->NewHeight *= giVT_CharHeight;
592 term->NewWidth *= giVT_CharWidth;
594 // Fill unchanged dimensions
595 if(term->NewHeight == 0) term->NewHeight = term->Height;
596 if(term->NewWidth == 0) term->NewWidth = term->Width;
598 VT_int_ChangeMode(term, *iData, term->NewWidth, term->NewHeight);
599 // Clear unapplied dimensions
604 // Update the screen dimensions
605 if(Node->Inode == giVT_CurrentTerminal)
606 VT_SetTerminal( giVT_CurrentTerminal );
608 LEAVE('i', term->Mode);
611 // Get/set the terminal width
612 case TERM_IOCTL_WIDTH:
614 if( CheckMem(Data, sizeof(int)) == 0 ) {
618 term->NewWidth = *iData;
621 ret = term->NewWidth;
622 else if( term->Mode == TERM_MODE_TEXT )
623 ret = term->TextWidth;
629 // Get/set the terminal height
630 case TERM_IOCTL_HEIGHT:
632 if( CheckMem(Data, sizeof(int)) == 0 ) {
636 term->NewHeight = *iData;
638 if( term->NewHeight )
639 ret = term->NewHeight;
640 else if( term->Mode == TERM_MODE_TEXT )
641 ret = term->TextHeight;
647 case TERM_IOCTL_FORCESHOW:
648 Log_Log("VTerm", "Thread %i forced VTerm %i to be shown",
649 Threads_GetTID(), (int)Node->Inode);
650 VT_SetTerminal( Node->Inode );
659 * \fn void VT_SetTerminal(int ID)
660 * \brief Set the current terminal
662 void VT_SetTerminal(int ID)
664 // Update current terminal ID
665 Log_Log("VTerm", "Changed terminal from %i to %i", giVT_CurrentTerminal, ID);
666 giVT_CurrentTerminal = ID;
667 gpVT_CurTerm = &gVT_Terminals[ID];
670 if( gpVT_CurTerm->Mode == TERM_MODE_TEXT && !(gpVT_CurTerm->Flags & VT_FLAG_HIDECSR) )
672 tVideo_IOCtl_Pos pos;
673 pos.x = (gpVT_CurTerm->WritePos - gpVT_CurTerm->ViewPos) % gpVT_CurTerm->TextWidth;
674 pos.y = (gpVT_CurTerm->WritePos - gpVT_CurTerm->ViewPos) / gpVT_CurTerm->TextWidth;
675 if( pos.x < gpVT_CurTerm->TextHeight )
676 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &pos);
679 if( gpVT_CurTerm->Mode == TERM_MODE_TEXT )
680 VT_SetMode( VIDEO_BUFFMT_TEXT );
682 VT_SetMode( VIDEO_BUFFMT_FRAMEBUFFER );
685 VT_int_UpdateScreen( &gVT_Terminals[ ID ], 1 );
689 * \fn void VT_KBCallBack(Uint32 Codepoint)
690 * \brief Called on keyboard interrupt
691 * \param Codepoint Pseudo-UTF32 character
693 * Handles a key press and sends the key code to the user's buffer.
694 * If the code creates a kernel-magic sequence, it is not passed to the
695 * user and is handled in-kernel.
697 void VT_KBCallBack(Uint32 Codepoint)
699 tVTerm *term = gpVT_CurTerm;
701 // How the hell did we get a codepoint of zero?
702 if(Codepoint == 0) return;
705 if( Codepoint & 0x80000000 )
707 Codepoint &= 0x7FFFFFFF;
711 case KEY_RSHIFT: gbVT_CtrlDown = 0; break;
712 case KEY_LSHIFT: gbVT_AltDown = 0; break;
714 case KEY_LALT: gbVT_AltDown &= ~1; break;
715 case KEY_RALT: gbVT_AltDown &= ~2; break;
716 case KEY_LCTRL: gbVT_CtrlDown &= ~1 break;
717 case KEY_RCTRL: gbVT_CtrlDown &= ~2; break;
725 #if !USE_CTRL_ALT // HACK: Use both shifts instead of Ctrl-Alt
726 case KEY_RSHIFT: gbVT_CtrlDown = 1; break;
727 case KEY_LSHIFT: gbVT_AltDown = 1; break;
729 case KEY_LALT: gbVT_AltDown |= 1; break;
730 case KEY_RALT: gbVT_AltDown |= 2; break;
731 case KEY_LCTRL: gbVT_CtrlDown |= 1; break;
732 case KEY_RCTRL: gbVT_CtrlDown |= 2; break;
736 if(!gbVT_AltDown || !gbVT_CtrlDown)
740 case KEY_F1: VT_SetTerminal(0); return;
741 case KEY_F2: VT_SetTerminal(1); return;
742 case KEY_F3: VT_SetTerminal(2); return;
743 case KEY_F4: VT_SetTerminal(3); return;
744 case KEY_F5: VT_SetTerminal(4); return;
745 case KEY_F6: VT_SetTerminal(5); return;
746 case KEY_F7: VT_SetTerminal(6); return;
747 case KEY_F8: VT_SetTerminal(7); return;
748 case KEY_F9: VT_SetTerminal(8); return;
749 case KEY_F10: VT_SetTerminal(9); return;
750 case KEY_F11: VT_SetTerminal(10); return;
751 case KEY_F12: VT_SetTerminal(11); return;
754 if( gpVT_CurTerm->ViewPos > gpVT_CurTerm->Width )
755 gpVT_CurTerm->ViewPos -= gpVT_CurTerm->Width;
757 gpVT_CurTerm->ViewPos = 0;
760 if( gpVT_CurTerm->ViewPos < gpVT_CurTerm->Width*gpVT_CurTerm->Height*(giVT_Scrollback-1) )
761 gpVT_CurTerm->ViewPos += gpVT_CurTerm->Width;
763 gpVT_CurTerm->ViewPos = gpVT_CurTerm->Width*gpVT_CurTerm->Height*(giVT_Scrollback-1);
769 if(term->Mode == TERM_MODE_TEXT)
774 // Ignore Modifer Keys
775 if(Codepoint > KEY_MODIFIERS) return;
777 // Get UTF-8/ANSI Encoding
781 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'D';
785 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'C';
789 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'A';
793 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'B';
798 buf[0] = '\x1B'; buf[1] = '['; buf[2] = '5'; // Some overline also
799 //len = 4; // Commented out until I'm sure
805 // Attempt to encode in UTF-8
807 len = WriteUTF8( buf, Codepoint );
809 Warning("Codepoint (%x) is unrepresentable in UTF-8", Codepoint);
815 // Unprintable / Don't Pass
820 if( MAX_INPUT_CHARS8 - term->InputWrite >= len )
821 memcpy( &term->InputBuffer[term->InputWrite], buf, len );
823 memcpy( &term->InputBuffer[term->InputWrite], buf, MAX_INPUT_CHARS8 - term->InputWrite );
824 memcpy( &term->InputBuffer[0], buf, len - (MAX_INPUT_CHARS8 - term->InputWrite) );
826 // Roll the buffer over
827 term->InputWrite += len;
828 term->InputWrite %= MAX_INPUT_CHARS8;
829 if( (term->InputWrite - term->InputRead + MAX_INPUT_CHARS8)%MAX_INPUT_CHARS8 < len ) {
830 term->InputRead = term->InputWrite + 1;
831 term->InputRead %= MAX_INPUT_CHARS8;
837 // Encode the raw UTF-32 Key
838 ((Uint32*)term->InputBuffer)[ term->InputWrite ] = Codepoint;
840 term->InputWrite %= MAX_INPUT_CHARS32;
841 if(term->InputRead == term->InputWrite) {
843 term->InputRead %= MAX_INPUT_CHARS32;
847 // Wake up the thread waiting on us
848 if( term->ReadingThread >= 0 ) {
849 Threads_WakeTID(term->ReadingThread);
854 * \fn void VT_int_ClearLine(tVTerm *Term, int Num)
855 * \brief Clears a line in a virtual terminal
857 void VT_int_ClearLine(tVTerm *Term, int Num)
860 tVT_Char *cell = &Term->Text[ Num*Term->TextWidth ];
861 if( Num < 0 || Num >= Term->TextHeight * (giVT_Scrollback + 1) ) return ;
862 //ENTER("pTerm iNum", Term, Num);
863 for( i = Term->TextWidth; i--; )
866 cell[ i ].Colour = Term->CurColour;
872 * \fn int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
873 * \brief Parses a VT100 Escape code
875 int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
880 int args[6] = {0,0,0,0};
888 if( '0' <= c && c <= '9' )
891 if(c == ';') c = Buffer[j++];
892 while('0' <= c && c <= '9') {
902 if( ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
908 if(argc == 1) tmp = args[0];
911 if( Term->WritePos-(tmp-1) % Term->TextWidth == 0 )
912 Term->WritePos -= Term->WritePos % Term->TextWidth;
914 Term->WritePos -= tmp;
919 if(argc == 1) tmp = args[0];
921 if( (Term->WritePos + tmp) % Term->TextWidth == 0 ) {
922 Term->WritePos -= Term->WritePos % Term->TextWidth;
923 Term->WritePos += Term->TextWidth - 1;
925 Term->WritePos += tmp;
935 int i = Term->TextHeight * (giVT_Scrollback + 1);
936 while( i-- ) VT_int_ClearLine(Term, i);
939 VT_int_UpdateScreen(Term, 1);
944 // Set cursor position
946 Term->WritePos = args[0] + args[1]*Term->TextWidth;
947 Log_Debug("VTerm", "args = {%i, %i}", args[0], args[1]);
954 if( 0 <= args[argc] && args[argc] <= 8)
958 case 0: Term->CurColour = DEFAULT_COLOUR; break; // Reset
959 case 1: Term->CurColour |= 0x80000000; break; // Bright
960 case 2: Term->CurColour &= ~0x80000000; break; // Dim
964 else if(30 <= args[argc] && args[argc] <= 37) {
965 Term->CurColour &= 0xF000FFFF;
966 Term->CurColour |= (Uint32)caVT100Colours[ args[argc]-30+(Term->CurColour>>28) ] << 16;
969 else if(40 <= args[argc] && args[argc] <= 47) {
970 Term->CurColour &= 0xFFFF8000;
971 Term->CurColour |= caVT100Colours[ args[argc]-40+((Term->CurColour>>12)&15) ];
976 Log_Warning("VTerm", "Unknown control sequence");
985 //Log_Debug("VTerm", "j = %i, Buffer = '%s'", j, Buffer);
990 * \fn void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
991 * \brief Print a string to the Virtual Terminal
993 void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
999 for( i = 0; i < Count; i++ )
1001 // Handle escape sequences
1002 if( Buffer[i] == 0x1B )
1005 i += VT_int_ParseEscape(Term, (char*)&Buffer[i]) - 1;
1009 // Fast check for non UTF-8
1010 if( Buffer[i] < 128 ) // Plain ASCII
1011 VT_int_PutChar(Term, Buffer[i]);
1013 i += ReadUTF8(&Buffer[i], &val) - 1;
1014 VT_int_PutChar(Term, val);
1018 VT_int_UpdateScreen( Term, 0 );
1021 if( Term == gpVT_CurTerm && !(Term->Flags & VT_FLAG_HIDECSR) )
1023 tVideo_IOCtl_Pos pos;
1024 pos.x = (Term->WritePos - Term->ViewPos) % Term->TextWidth;
1025 pos.y = (Term->WritePos - Term->ViewPos) / Term->TextWidth;
1026 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &pos);
1031 * \fn void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
1032 * \brief Write a single character to a VTerm
1034 void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
1040 case '\0': return; // Ignore NULL byte
1042 VT_int_UpdateScreen( Term, 0 ); // Update the line before newlining
1043 Term->WritePos += Term->TextWidth;
1045 Term->WritePos -= Term->WritePos % Term->TextWidth;
1050 Term->Text[ Term->WritePos ].Ch = '\0';
1051 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
1053 } while(Term->WritePos & 7);
1057 // Backspace is invalid at Offset 0
1058 if(Term->WritePos == 0) break;
1062 if(Term->Text[ Term->WritePos ].Ch != '\0') {
1063 Term->Text[ Term->WritePos ].Ch = 0;
1064 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
1068 i = 7; // Limit it to 8
1070 Term->Text[ Term->WritePos ].Ch = 0;
1071 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
1073 } while(Term->WritePos && i-- && Term->Text[ Term->WritePos ].Ch == '\0');
1074 if(Term->Text[ Term->WritePos ].Ch != '\0')
1079 Term->Text[ Term->WritePos ].Ch = Ch;
1080 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
1086 // - Check if we need to scroll the entire scrollback buffer
1087 if(Term->WritePos >= Term->TextWidth*Term->TextHeight*(giVT_Scrollback+1))
1092 Term->WritePos -= Term->TextWidth;
1094 VT_int_UpdateScreen( Term, 0 );
1096 // Update view position
1097 base = Term->TextWidth*Term->TextHeight*(giVT_Scrollback);
1098 if(Term->ViewPos < base)
1099 Term->ViewPos += Term->Width;
1100 if(Term->ViewPos > base)
1101 Term->ViewPos = base;
1103 // Scroll terminal cache
1104 base = Term->TextWidth*(Term->TextHeight*(giVT_Scrollback+1)-1);
1107 &Term->Text[Term->TextWidth],
1108 base*sizeof(tVT_Char)
1112 for( i = 0; i < Term->TextWidth; i ++ )
1114 Term->Text[ base + i ].Ch = 0;
1115 Term->Text[ base + i ].Colour = Term->CurColour;
1118 VT_int_ScrollFramebuffer( Term );
1119 VT_int_UpdateScreen( Term, 0 );
1121 // Ok, so we only need to scroll the screen
1122 else if(Term->WritePos >= Term->ViewPos + Term->TextWidth*Term->TextHeight)
1124 //Debug("Term->WritePos (%i) >= %i",
1126 // Term->ViewPos + Term->Width*Term->Height
1128 //Debug("Scrolling screen only");
1130 // Update the last line
1131 Term->WritePos -= Term->TextWidth;
1132 VT_int_UpdateScreen( Term, 0 );
1133 Term->WritePos += Term->TextWidth;
1134 VT_int_ClearLine(Term, Term->WritePos / Term->TextWidth);
1137 Term->ViewPos += Term->TextWidth;
1138 //Debug("Term->ViewPos = %i", Term->ViewPos);
1139 VT_int_ScrollFramebuffer( Term );
1140 VT_int_UpdateScreen( Term, 0 );
1147 * \fn void VT_int_ScrollFramebuffer( tVTerm *Term )
1148 * \note Scrolls the framebuffer by 1 text line
1150 void VT_int_ScrollFramebuffer( tVTerm *Term )
1160 // Only update if this is the current terminal
1161 if( Term != gpVT_CurTerm ) return;
1163 // Switch to 2D Command Stream
1164 tmp = VIDEO_BUFFMT_2DSTREAM;
1165 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
1167 // BLIT from 0,0 to 0,giVT_CharHeight
1168 buf.Op = VIDEO_2DOP_BLIT;
1169 buf.DstX = 0; buf.DstY = 0;
1170 buf.SrcX = 0; buf.SrcY = giVT_CharHeight;
1171 buf.W = Term->TextWidth * giVT_CharWidth;
1172 buf.H = (Term->TextHeight-1) * giVT_CharHeight;
1173 VFS_WriteAt(giVT_OutputDevHandle, 0, sizeof(buf), &buf);
1175 // Restore old mode (this function is only called during text mode)
1176 tmp = VIDEO_BUFFMT_TEXT;
1177 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
1181 * \fn void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
1182 * \brief Updates the video framebuffer
1184 void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
1186 // Only update if this is the current terminal
1187 if( Term != gpVT_CurTerm ) return;
1189 switch( Term->Mode )
1191 case TERM_MODE_TEXT:
1192 // Re copy the entire screen?
1195 giVT_OutputDevHandle,
1197 Term->TextWidth*Term->TextHeight*sizeof(tVT_Char),
1198 &Term->Text[Term->ViewPos]
1201 // Only copy the current line
1203 int pos = Term->WritePos - Term->WritePos % Term->TextWidth;
1205 giVT_OutputDevHandle,
1206 (pos - Term->ViewPos)*sizeof(tVT_Char),
1207 Term->TextWidth*sizeof(tVT_Char),
1214 giVT_OutputDevHandle,
1216 Term->Width*Term->Height*sizeof(Uint32),
1224 * \brief Update the screen mode
1225 * \param Term Terminal to update
1226 * \param NewMode New mode to set
1227 * \param NewWidth New framebuffer width
1228 * \param NewHeight New framebuffer height
1230 void VT_int_ChangeMode(tVTerm *Term, int NewMode, int NewWidth, int NewHeight)
1232 int oldW = Term->Width;
1233 int oldTW = oldW / giVT_CharWidth;
1234 int oldH = Term->Height;
1235 int oldTH = oldH / giVT_CharWidth;
1236 tVT_Char *oldTBuf = Term->Text;
1237 Uint32 *oldFB = Term->Buffer;
1240 // TODO: Increase RealWidth/RealHeight when this happens
1241 if(NewWidth > giVT_RealWidth) NewWidth = giVT_RealWidth;
1242 if(NewHeight > giVT_RealHeight) NewHeight = giVT_RealHeight;
1244 // Calculate new dimensions
1245 Term->TextWidth = NewWidth / giVT_CharWidth;
1246 Term->TextHeight = NewHeight / giVT_CharHeight;
1247 Term->Width = NewWidth;
1248 Term->Height = NewHeight;
1249 Term->Mode = NewMode;
1251 // Allocate new buffers
1253 Term->Text = calloc(
1254 Term->TextWidth * Term->TextHeight * (giVT_Scrollback+1),
1260 if( w > Term->TextWidth ) w = Term->TextWidth;
1262 if( h > Term->TextHeight ) h = Term->TextHeight;
1263 h *= giVT_Scrollback + 1;
1264 for( i = 0; i < h; i ++ )
1267 &Term->Text[i*Term->TextWidth],
1276 Term->Buffer = calloc( Term->Width * Term->Height, sizeof(Uint32) );
1280 if( w > Term->Width ) w = Term->Width;
1282 if( h > Term->Height ) h = Term->Height;
1283 for( i = 0; i < h; i ++ )
1286 &Term->Buffer[i*Term->Width],
1297 case TERM_MODE_TEXT:
1298 Log_Log("VTerm", "Set VT %p to text mode (%ix%i)",
1299 Term, Term->TextWidth, Term->TextHeight);
1302 Log_Log("VTerm", "Set VT %p to framebuffer mode (%ix%i)",
1303 Term, Term->Width, Term->Height);
1305 //case TERM_MODE_2DACCEL:
1306 //case TERM_MODE_3DACCEL:
1314 #define MONOSPACE_FONT 10816
1316 #if MONOSPACE_FONT == 10808 // 8x8
1317 # include "vterm_font_8x8.h"
1318 #elif MONOSPACE_FONT == 10816 // 8x16
1319 # include "vterm_font_8x16.h"
1322 // === PROTOTYPES ===
1323 Uint8 *VT_Font_GetChar(Uint32 Codepoint);
1326 int giVT_CharWidth = FONT_WIDTH;
1327 int giVT_CharHeight = FONT_HEIGHT;
1331 * \fn void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
1332 * \brief Render a font character
1334 void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
1337 Uint32 *buf = Buffer;
1340 font = VT_Font_GetChar(Codepoint);
1342 for(y = 0; y < FONT_HEIGHT; y ++)
1344 for(x = 0; x < FONT_WIDTH; x ++)
1346 if(*font & (1 << (FONT_WIDTH-x-1)))
1357 * \fn Uint32 VT_Colour12to24(Uint16 Col12)
1360 Uint32 VT_Colour12to24(Uint16 Col12)
1365 ret = (tmp << 0) | (tmp << 4);
1366 tmp = (Col12 & 0xF0) >> 4;
1367 ret |= (tmp << 8) | (tmp << 12);
1368 tmp = (Col12 & 0xF00) >> 8;
1369 ret |= (tmp << 16) | (tmp << 20);
1374 * \fn Uint8 *VT_Font_GetChar(Uint32 Codepoint)
1375 * \brief Gets an index into the font array given a Unicode Codepoint
1376 * \note See http://en.wikipedia.org/wiki/CP437
1378 Uint8 *VT_Font_GetChar(Uint32 Codepoint)
1382 return &VTermFont[Codepoint*FONT_HEIGHT];
1385 case 0xC7: index = 128; break; // Ç
1386 case 0xFC: index = 129; break; // ü
1387 case 0xE9: index = 130; break; // é
1388 case 0xE2: index = 131; break; // â
1389 case 0xE4: index = 132; break; // ä
1390 case 0xE0: index = 133; break; // à
1391 case 0xE5: index = 134; break; // å
1392 case 0xE7: index = 135; break; // ç
1393 case 0xEA: index = 136; break; // ê
1394 case 0xEB: index = 137; break; // ë
1395 case 0xE8: index = 138; break; // è
1396 case 0xEF: index = 139; break; // ï
1397 case 0xEE: index = 140; break; // î
1398 case 0xEC: index = 141; break; // ì
1399 case 0xC4: index = 142; break; // Ä
1400 case 0xC5: index = 143; break; // Å
1403 return &VTermFont[index*FONT_HEIGHT];
1406 EXPORTAS(&giVT_CharWidth, giVT_CharWidth);
1407 EXPORTAS(&giVT_CharHeight, giVT_CharHeight);
1408 EXPORT(VT_Font_Render);
1409 EXPORT(VT_Colour12to24);