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 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_*)
42 short Width; //!< Virtual Width
43 short Height; //!< Virtual Height
45 int ViewPos; //!< View Buffer Offset (Text Only)
46 int WritePos; //!< Write Buffer Offset (Text Only)
47 Uint32 CurColour; //!< Current Text Colour
49 int InputRead; //!< Input buffer read position
50 int InputWrite; //!< Input buffer write position
51 char InputBuffer[MAX_INPUT_CHARS8];
56 char Name[2]; //!< Name of the terminal
61 extern void Debug_SetKTerminal(char *File);
64 int VT_Install(char **Arguments);
65 void VT_InitOutput(void);
66 void VT_InitInput(void);
67 char *VT_ReadDir(tVFS_Node *Node, int Pos);
68 tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name);
69 int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data);
70 Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
71 Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
72 int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data);
73 void VT_SetResolution(int Width, int Height);
74 void VT_SetMode(int Mode);
75 void VT_SetTerminal(int ID);
76 void VT_KBCallBack(Uint32 Codepoint);
77 void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count);
78 int VT_int_ParseEscape(tVTerm *Term, char *Buffer);
79 void VT_int_PutChar(tVTerm *Term, Uint32 Ch);
80 void VT_int_ScrollFramebuffer( tVTerm *Term );
81 void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll );
82 void VT_int_ChangeMode(tVTerm *Term, int NewMode);
85 const Uint16 caVT100Colours[] = {
86 // Black, Red, Green, Yellow, Blue, Purple, Cyan, Gray
87 // Same again, but bright
88 VT_COL_BLACK, 0x700, 0x070, 0x770, 0x007, 0x707, 0x077, 0xAAA,
89 VT_COL_GREY, 0xF00, 0x0F0, 0xFF0, 0x00F, 0xF0F, 0x0FF, VT_COL_WHITE
93 MODULE_DEFINE(0, VERSION, VTerm, VT_Install, NULL, DEFAULT_OUTPUT, DEFAULT_INPUT, NULL);
94 tDevFS_Driver gVT_DrvInfo = {
97 .Flags = VFS_FFLAG_DIRECTORY,
101 .ReadDir = VT_ReadDir,
102 .FindDir = VT_FindDir,
103 .IOCtl = VT_Root_IOCtl
107 tVTerm gVT_Terminals[NUM_VTS];
108 int giVT_CurrentTerminal = 0;
109 tVTerm *gpVT_CurTerm = &gVT_Terminals[0];
110 // --- Video State ---
111 short giVT_RealWidth = DEFAULT_WIDTH; //!< Screen Width
112 short giVT_RealHeight = DEFAULT_HEIGHT; //!< Screen Height
113 int giVT_Scrollback = DEFAULT_SCROLLBACK;
114 // --- Driver Handles ---
115 char *gsVT_OutputDevice = NULL;
116 char *gsVT_InputDevice = NULL;
117 int giVT_OutputDevHandle = -2;
118 int giVT_InputDevHandle = -2;
119 // --- Key States --- (Used for VT Switching/Magic Combos)
120 int gbVT_CtrlDown = 0;
121 int gbVT_AltDown = 0;
122 int gbVT_SysrqDown = 0;
126 * \fn int VT_Install(char **Arguments)
127 * \brief Installs the Virtual Terminal Driver
129 int VT_Install(char **Arguments)
136 char **args = Arguments;
137 char *arg, *opt, *val;
138 for( ; (arg = *args); args++ )
140 Log_Debug("VTerm", "Argument '%s'", arg);
142 val = arg + strpos(arg, '='); *val++ = '\0';
144 if( strcmp(opt, "Video") == 0 ) {
145 if(gsVT_OutputDevice) free(gsVT_OutputDevice);
146 gsVT_OutputDevice = strdup(val);
148 else if( strcmp(opt, "Input") == 0 ) {
149 if(gsVT_InputDevice) free(gsVT_InputDevice);
150 gsVT_InputDevice = strdup(val);
152 else if( strcmp(opt, "Width") == 0 ) {
153 giVT_RealWidth = atoi( val );
155 else if( strcmp(opt, "Height") == 0 ) {
156 giVT_RealHeight = atoi( val );
158 else if( strcmp(opt, "Scrollback") == 0 ) {
159 giVT_Scrollback = atoi( val );
165 if(!gsVT_OutputDevice) gsVT_OutputDevice = "/Devices/"DEFAULT_OUTPUT;
166 if(!gsVT_InputDevice) gsVT_InputDevice = "/Devices/"DEFAULT_INPUT;
168 Log_Log("VTerm", "Using '%s' as output", gsVT_OutputDevice);
169 Log_Log("VTerm", "Using '%s' as input", gsVT_InputDevice);
172 for( i = 0; i < NUM_VTS; i++ )
174 gVT_Terminals[i].Mode = TERM_MODE_TEXT;
175 gVT_Terminals[i].Flags = 0;
176 gVT_Terminals[i].Width = giVT_RealWidth/giVT_CharWidth;
177 gVT_Terminals[i].Height = giVT_RealHeight/giVT_CharHeight;
178 gVT_Terminals[i].CurColour = DEFAULT_COLOUR;
179 gVT_Terminals[i].WritePos = 0;
180 gVT_Terminals[i].ViewPos = 0;
182 gVT_Terminals[i].Buffer = calloc(
183 gVT_Terminals[i].Width*gVT_Terminals[i].Height*(giVT_Scrollback+1),
187 gVT_Terminals[i].Name[0] = '0'+i;
188 gVT_Terminals[i].Name[1] = '\0';
189 gVT_Terminals[i].Node.Inode = i;
190 gVT_Terminals[i].Node.ImplPtr = &gVT_Terminals[i];
191 gVT_Terminals[i].Node.NumACLs = 0; // Only root can open virtual terminals
193 gVT_Terminals[i].Node.Read = VT_Read;
194 gVT_Terminals[i].Node.Write = VT_Write;
195 gVT_Terminals[i].Node.IOCtl = VT_Terminal_IOCtl;
199 DevFS_AddDevice( &gVT_DrvInfo );
204 // Set kernel output to VT0
205 Debug_SetKTerminal("/Devices/VTerm/0");
207 Log_Log("VTerm", "Returning %i", MODULE_ERR_OK);
208 return MODULE_ERR_OK;
212 * \fn void VT_InitOutput()
213 * \brief Initialise Video Output
217 giVT_OutputDevHandle = VFS_Open(gsVT_OutputDevice, VFS_OPENFLAG_WRITE);
218 if(giVT_InputDevHandle == -1) {
219 Log_Warning("VTerm", "Oh F**k, I can't open the video device '%s'", gsVT_OutputDevice);
222 VT_SetResolution(giVT_RealWidth, giVT_RealHeight);
224 VT_SetMode( VIDEO_BUFFMT_TEXT );
228 * \fn void VT_InitInput()
229 * \brief Initialises the input
233 giVT_InputDevHandle = VFS_Open(gsVT_InputDevice, VFS_OPENFLAG_READ);
234 if(giVT_InputDevHandle == -1) return ;
235 VFS_IOCtl(giVT_InputDevHandle, KB_IOCTL_SETCALLBACK, VT_KBCallBack);
239 * \fn char *VT_ReadDir(tVFS_Node *Node, int Pos)
240 * \brief Read from the VTerm Directory
242 char *VT_ReadDir(tVFS_Node *Node, int Pos)
244 if(Pos < 0) return NULL;
245 if(Pos >= NUM_VTS) return NULL;
246 return strdup( gVT_Terminals[Pos].Name );
250 * \fn tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name)
251 * \brief Find an item in the VTerm directory
253 tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name)
257 ENTER("pNode sName", Node, Name);
259 // Open the input and output files if needed
260 if(giVT_OutputDevHandle == -2) VT_InitOutput();
261 if(giVT_InputDevHandle == -2) VT_InitInput();
264 if(Name[0] < '0' || Name[0] > '9' || Name[1] != '\0') {
275 LEAVE('p', &gVT_Terminals[num].Node);
276 return &gVT_Terminals[num].Node;
280 * \fn int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
281 * \brief Control the VTerm Driver
283 int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
288 case DRV_IOCTL_TYPE: return DRV_TYPE_MISC;
289 case DRV_IOCTL_IDENT: memcpy(Data, "VT\0\0", 4); return 0;
290 case DRV_IOCTL_VERSION: return VERSION;
291 case DRV_IOCTL_LOOKUP: return 0;
293 case 4: // Get Video Driver
294 if(Data) strcpy(Data, gsVT_OutputDevice);
295 return strlen(gsVT_OutputDevice);
297 case 5: // Set Video Driver
298 if(!Data) return -EINVAL;
299 if(Threads_GetUID() != 0) return -EACCES;
303 free(gsVT_OutputDevice);
305 gsVT_OutputDevice = malloc(len+1);
306 strcpy(gsVT_OutputDevice, Data);
308 VFS_Close(giVT_OutputDevHandle);
309 giVT_OutputDevHandle = -1;
318 * \fn Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
319 * \brief Read from a virtual terminal
321 Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
324 tVTerm *term = &gVT_Terminals[ Node->Inode ];
326 // Check current mode
332 while(term->InputRead == term->InputWrite) Threads_Yield();
334 ((char*)Buffer)[pos] = term->InputBuffer[term->InputRead];
337 term->InputRead %= MAX_INPUT_CHARS8;
345 while(term->InputRead == term->InputWrite) Threads_Yield();
346 ((Uint32*)Buffer)[pos] = ((Uint32*)term->InputBuffer)[term->InputRead];
349 term->InputRead %= MAX_INPUT_CHARS32;
357 * \fn Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
358 * \brief Write to a virtual terminal
360 Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
362 tVTerm *term = &gVT_Terminals[ Node->Inode ];
369 VT_int_PutString(term, Buffer, Length);
372 size = term->Width*term->Height*4;
373 if( Offset > size ) {
374 Log_Notice("VTerm", "VT_Write: Offset (0x%llx) > FBSize (0x%x)",
379 if( Offset + Length > size ) {
380 Log_Notice("VTerm", "VT_Write: Offset+Length (0x%llx) > FBSize (0x%x)",
381 Offset+Length, size);
382 Length = size - Offset;
385 memcpy( (void*)((Uint)term->Buffer + (Uint)Offset), Buffer, Length );
387 if( Node->Inode == giVT_CurrentTerminal )
389 if( giVT_RealWidth > term->Width || giVT_RealHeight > term->Height )
392 x = Offset/4; y = x / term->Width; x %= term->Width;
393 w = Length/4+x; h = w / term->Width; w %= term->Width;
395 x += (giVT_RealWidth - term->Width) / 2;
396 y += (giVT_RealHeight - term->Height) / 2;
399 VFS_WriteAt( giVT_OutputDevHandle,
400 (x + y * giVT_RealWidth)*4,
404 Buffer = (void*)( (Uint)Buffer + term->Width*4 );
410 return VFS_WriteAt( giVT_OutputDevHandle, Offset, Length, Buffer );
414 case TERM_MODE_2DACCEL:
415 //case TERM_MODE_3DACCEL:
416 if( Node->Inode == giVT_CurrentTerminal )
418 VFS_Write( giVT_OutputDevHandle, Length, Buffer );
427 * \fn int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
428 * \brief Call an IO Control on a virtual terminal
430 int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
433 tVTerm *term = Node->ImplPtr;
434 ENTER("pNode iId pData", Node, Id, Data);
436 if(Id >= DRV_IOCTL_LOOKUP) {
437 // Only root can fiddle with graphics modes
438 // TODO: Remove this and replace with user ownership
439 if( Threads_GetUID() != 0 ) return -1;
446 LEAVE('i', DRV_TYPE_TERMINAL);
447 return DRV_TYPE_TERMINAL;
448 case DRV_IOCTL_IDENT:
449 memcpy(Data, "VT\0\0", 4);
452 case DRV_IOCTL_VERSION:
455 case DRV_IOCTL_LOOKUP:
459 // Get/Set the mode (and apply any changes)
460 case TERM_IOCTL_MODETYPE:
463 if( CheckMem(Data, sizeof(int)) == 0 ) {
467 Log_Log("VTerm", "VTerm %i mode set to %i", (int)Node->Inode, *iData);
469 // Update mode if needed
470 if(term->Mode != *iData)
471 VT_int_ChangeMode(term, *iData);
473 // Update the screen dimensions
474 if(Node->Inode == giVT_CurrentTerminal)
475 VT_SetTerminal( giVT_CurrentTerminal );
477 LEAVE('i', term->Mode);
480 // Get/set the terminal width
481 case TERM_IOCTL_WIDTH:
483 if( CheckMem(Data, sizeof(int)) == 0 ) {
487 term->Width = *iData;
489 Log("VT_Terminal_IOCtl - RETURN term->Width = %i", term->Width);
490 LEAVE('i', term->Width);
493 // Get/set the terminal height
494 case TERM_IOCTL_HEIGHT:
496 if( CheckMem(Data, sizeof(int)) == 0 ) {
500 term->Height = *iData;
502 Log("VT_Terminal_IOCtl - RETURN term->Height = %i", term->Height);
503 LEAVE('i', term->Height);
506 case TERM_IOCTL_FORCESHOW:
507 Log_Log("VTerm", "Thread %i forced VTerm %i to be shown",
508 Threads_GetTID(), (int)Node->Inode);
509 VT_SetTerminal( Node->Inode );
517 void VT_SetResolution(int Width, int Height)
519 tVideo_IOCtl_Mode mode = {0};
523 // Create the video mode
525 mode.height = Height;
530 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_FINDMODE, &mode );
532 if( Width != mode.width || Height != mode.height )
535 "Selected resolution (%ix%i is not supported) by the device, using (%ix%i)",
536 giVT_RealWidth, giVT_RealHeight,
537 mode.width, mode.height
540 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_GETSETMODE, &tmp );
542 // Resize text terminals if needed
543 if( giVT_RealWidth != mode.width || giVT_RealHeight != mode.height )
545 int newBufSize = (giVT_RealWidth/giVT_CharWidth)
546 *(giVT_RealHeight/giVT_CharHeight)
547 *(giVT_Scrollback+1);
549 // Resize the text terminals
550 giVT_RealWidth = mode.width;
551 giVT_RealHeight = mode.height;
552 for( i = 0; i < NUM_VTS; i ++ )
554 if( gVT_Terminals[i].Mode != TERM_MODE_TEXT ) continue;
556 gVT_Terminals[i].Text = realloc(
557 gVT_Terminals[i].Text,
558 newBufSize*sizeof(tVT_Char)
564 void VT_SetMode(int Mode)
566 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &Mode );
570 * \fn void VT_SetTerminal(int ID)
571 * \brief Set the current terminal
573 void VT_SetTerminal(int ID)
575 // Update current terminal ID
576 Log_Log("VTerm", "Changed terminal from %i to %i", giVT_CurrentTerminal, ID);
577 giVT_CurrentTerminal = ID;
578 gpVT_CurTerm = &gVT_Terminals[ID];
581 if( gpVT_CurTerm->Mode == TERM_MODE_TEXT && !(gpVT_CurTerm->Flags & VT_FLAG_HIDECSR) )
583 tVideo_IOCtl_Pos pos;
584 pos.x = gpVT_CurTerm->WritePos % gpVT_CurTerm->Width;
585 pos.y = gpVT_CurTerm->WritePos / gpVT_CurTerm->Width;
586 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &pos);
589 if( gpVT_CurTerm->Mode == TERM_MODE_TEXT )
590 VT_SetMode( VIDEO_BUFFMT_TEXT );
592 VT_SetMode( VIDEO_BUFFMT_FRAMEBUFFER );
595 VT_int_UpdateScreen( &gVT_Terminals[ ID ], 1 );
599 * \fn void VT_KBCallBack(Uint32 Codepoint)
600 * \brief Called on keyboard interrupt
601 * \param Codepoint Pseudo-UTF32 character
603 * Handles a key press and sends the key code to the user's buffer.
604 * If the code creates a kernel-magic sequence, it is not passed to the
605 * user and is handled in-kernel.
607 void VT_KBCallBack(Uint32 Codepoint)
609 tVTerm *term = &gVT_Terminals[giVT_CurrentTerminal];
611 // How the hell did we get a Codepoint of zero?
612 if(Codepoint == 0) return;
615 if( Codepoint & 0x80000000 )
617 Codepoint &= 0x7FFFFFFF;
621 case KEY_RSHIFT: gbVT_CtrlDown = 0; break;
622 case KEY_LSHIFT: gbVT_AltDown = 0; break;
640 case KEY_RSHIFT: gbVT_CtrlDown = 1; break;
641 case KEY_LSHIFT: gbVT_AltDown = 1; break;
655 if(!gbVT_AltDown || !gbVT_CtrlDown)
660 case KEY_F1: VT_SetTerminal(0); return;
661 case KEY_F2: VT_SetTerminal(1); return;
662 case KEY_F3: VT_SetTerminal(2); return;
663 case KEY_F4: VT_SetTerminal(3); return;
664 case KEY_F5: VT_SetTerminal(4); return;
665 case KEY_F6: VT_SetTerminal(5); return;
666 case KEY_F7: VT_SetTerminal(6); return;
667 case KEY_F8: VT_SetTerminal(7); return;
668 case KEY_F9: VT_SetTerminal(8); return;
669 case KEY_F10: VT_SetTerminal(9); return;
670 case KEY_F11: VT_SetTerminal(10); return;
671 case KEY_F12: VT_SetTerminal(11); return;
673 if( gpVT_CurTerm->ViewPos > gpVT_CurTerm->Width )
674 gpVT_CurTerm->ViewPos -= gpVT_CurTerm->Width;
676 gpVT_CurTerm->ViewPos = 0;
679 if( gpVT_CurTerm->ViewPos < gpVT_CurTerm->Width*gpVT_CurTerm->Height*(giVT_Scrollback-1) )
680 gpVT_CurTerm->ViewPos += gpVT_CurTerm->Width;
682 gpVT_CurTerm->ViewPos = gpVT_CurTerm->Width*gpVT_CurTerm->Height*(giVT_Scrollback-1);
688 if(term->Mode == TERM_MODE_TEXT)
693 // Ignore Modifer Keys
694 if(Codepoint > KEY_MODIFIERS) return;
696 // Get UTF-8/ANSI Encoding
700 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'D';
704 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'C';
708 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'A';
712 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'B';
717 buf[0] = '\x1B'; buf[1] = '['; buf[2] = '5'; // Some overline also
718 //len = 4; // Commented out until I'm sure
724 // Attempt to encode in UTF-8
726 len = WriteUTF8( buf, Codepoint );
728 Warning("Codepoint (%x) is unrepresentable in UTF-8", Codepoint);
734 // Unprintable / Don't Pass
739 if( MAX_INPUT_CHARS8 - term->InputWrite >= len )
740 memcpy( &term->InputBuffer[term->InputWrite], buf, len );
742 memcpy( &term->InputBuffer[term->InputWrite], buf, MAX_INPUT_CHARS8 - term->InputWrite );
743 memcpy( &term->InputBuffer[0], buf, len - (MAX_INPUT_CHARS8 - term->InputWrite) );
745 // Roll the buffer over
746 term->InputWrite += len;
747 term->InputWrite %= MAX_INPUT_CHARS8;
748 if( (term->InputWrite - term->InputRead + MAX_INPUT_CHARS8)%MAX_INPUT_CHARS8 < len ) {
749 term->InputRead = term->InputWrite + 1;
750 term->InputRead %= MAX_INPUT_CHARS8;
756 // Encode the raw UTF-32 Key
757 ((Uint32*)term->InputBuffer)[ term->InputWrite ] = Codepoint;
759 term->InputWrite %= MAX_INPUT_CHARS32;
760 if(term->InputRead == term->InputWrite) {
762 term->InputRead %= MAX_INPUT_CHARS32;
768 * \fn void VT_int_ClearLine(tVTerm *Term, int Num)
769 * \brief Clears a line in a virtual terminal
771 void VT_int_ClearLine(tVTerm *Term, int Num)
774 //ENTER("pTerm iNum", Term, Num);
775 for( i = Term->Width; i--; )
777 Term->Text[ Num*Term->Width + i ].Ch = 0;
778 Term->Text[ Num*Term->Width + i ].Colour = Term->CurColour;
784 * \fn int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
785 * \brief Parses a VT100 Escape code
787 int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
792 int args[6] = {0,0,0,0};
800 if( '0' <= c && c <= '9' )
803 while('0' <= c && c <= '9') {
813 // Get string (what does this do?)
821 //Log_Debug("VTerm", "argc = %i", argc);
824 if( ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
830 if(argc == 1) tmp = args[0];
833 if( Term->WritePos-(tmp-1) % Term->Width == 0 )
834 Term->WritePos -= Term->WritePos % Term->Width;
836 Term->WritePos -= tmp;
841 if(argc == 1) tmp = args[0];
843 if( (Term->WritePos + tmp) % Term->Width == 0 ) {
844 Term->WritePos -= Term->WritePos % Term->Width;
845 Term->WritePos += Term->Width - 1;
847 Term->WritePos += tmp;
857 int i = Term->Height * (giVT_Scrollback + 1);
858 while( i-- ) VT_int_ClearLine(Term, i);
861 VT_int_UpdateScreen(Term, 1);
871 if( 0 <= args[argc] && args[argc] <= 8)
875 case 0: Term->CurColour = DEFAULT_COLOUR; break; // Reset
876 case 1: Term->CurColour |= 0x80000000; break; // Bright
877 case 2: Term->CurColour &= ~0x80000000; break; // Dim
881 else if(30 <= args[argc] && args[argc] <= 37) {
882 Term->CurColour &= 0xF000FFFF;
883 Term->CurColour |= (Uint32)caVT100Colours[ args[argc]-30+(Term->CurColour>>28) ] << 16;
886 else if(40 <= args[argc] && args[argc] <= 47) {
887 Term->CurColour &= 0xFFFF8000;
888 Term->CurColour |= caVT100Colours[ args[argc]-40+((Term->CurColour>>12)&15) ];
893 Log_Warning("VTerm", "Unknown control sequence");
902 //Log_Debug("VTerm", "j = %i, Buffer = '%s'", j, Buffer);
907 * \fn void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
908 * \brief Print a string to the Virtual Terminal
910 void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
916 for( i = 0; i < Count; i++ )
918 // Handle escape sequences
919 if( Buffer[i] == 0x1B )
922 i += VT_int_ParseEscape(Term, (char*)&Buffer[i]) - 1;
926 // Fast check for non UTF-8
927 if( Buffer[i] < 128 ) // Plain ASCII
928 VT_int_PutChar(Term, Buffer[i]);
930 i += ReadUTF8(&Buffer[i], &val) - 1;
931 VT_int_PutChar(Term, val);
935 VT_int_UpdateScreen( Term, 0 );
938 if( Term == gpVT_CurTerm && !(Term->Flags & VT_FLAG_HIDECSR) )
940 tVideo_IOCtl_Pos pos;
941 pos.x = Term->WritePos % Term->Width;
942 pos.y = Term->WritePos / Term->Width;
943 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &pos);
948 * \fn void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
949 * \brief Write a single character to a VTerm
951 void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
957 case '\0': return; // Ignore NULL byte
959 VT_int_UpdateScreen( Term, 0 ); // Update the line before newlining
960 Term->WritePos += Term->Width;
962 Term->WritePos -= Term->WritePos % Term->Width;
967 Term->Text[ Term->WritePos ].Ch = '\0';
968 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
970 } while(Term->WritePos & 7);
974 // Backspace is invalid at Offset 0
975 if(Term->WritePos == 0) break;
979 if(Term->Text[ Term->WritePos ].Ch != '\0') {
980 Term->Text[ Term->WritePos ].Ch = 0;
981 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
985 i = 7; // Limit it to 8
987 Term->Text[ Term->WritePos ].Ch = 0;
988 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
990 } while(Term->WritePos && i-- && Term->Text[ Term->WritePos ].Ch == '\0');
991 if(Term->Text[ Term->WritePos ].Ch != '\0')
996 Term->Text[ Term->WritePos ].Ch = Ch;
997 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
1003 // - Check if we need to scroll the entire scrollback buffer
1004 if(Term->WritePos >= Term->Width*Term->Height*(giVT_Scrollback+1))
1008 //Debug("Scrolling entire buffer");
1011 Term->WritePos -= Term->Width;
1013 VT_int_UpdateScreen( Term, 0 );
1015 // Update view position
1016 base = Term->Width*Term->Height*(giVT_Scrollback);
1017 if(Term->ViewPos < base)
1018 Term->ViewPos += Term->Width;
1019 if(Term->ViewPos > base)
1020 Term->ViewPos = base;
1022 // Scroll terminal cache
1023 base = Term->Width*(Term->Height*(giVT_Scrollback+1)-1);
1026 &Term->Text[Term->Width],
1027 (Term->Width*Term->Height*(giVT_Scrollback+1)-Term->Width)*sizeof(tVT_Char)
1031 for( i = 0; i < Term->Width; i ++ )
1033 Term->Text[ base + i ].Ch = 0;
1034 Term->Text[ base + i ].Colour = Term->CurColour;
1037 VT_int_ScrollFramebuffer( Term );
1038 VT_int_UpdateScreen( Term, 0 );
1040 // Ok, so we only need to scroll the screen
1041 else if(Term->WritePos >= Term->ViewPos + Term->Width*Term->Height)
1043 //Debug("Term->WritePos (%i) >= %i",
1045 // Term->ViewPos + Term->Width*Term->Height
1047 //Debug("Scrolling screen only");
1049 // Update the last line
1050 Term->WritePos -= Term->Width;
1051 VT_int_UpdateScreen( Term, 0 );
1052 Term->WritePos += Term->Width;
1055 Term->ViewPos += Term->Width;
1056 //Debug("Term->ViewPos = %i", Term->ViewPos);
1057 VT_int_ScrollFramebuffer( Term );
1058 VT_int_UpdateScreen( Term, 0 );
1065 * \fn void VT_int_ScrollFramebuffer( tVTerm *Term )
1066 * \note Scrolls the framebuffer by 1 text line
1068 void VT_int_ScrollFramebuffer( tVTerm *Term )
1078 // Only update if this is the current terminal
1079 if( Term != gpVT_CurTerm ) return;
1081 // Switch to 2D Command Stream
1082 tmp = VIDEO_BUFFMT_2DSTREAM;
1083 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
1085 // BLIT from 0,0 to 0,giVT_CharHeight
1086 buf.Op = VIDEO_2DOP_BLIT;
1087 buf.DstX = 0; buf.DstY = 0;
1088 buf.SrcX = 0; buf.SrcY = giVT_CharHeight;
1089 buf.W = Term->Width * giVT_CharWidth;
1090 buf.H = (Term->Height-1) * giVT_CharHeight;
1091 VFS_WriteAt(giVT_OutputDevHandle, 0, sizeof(buf), &buf);
1093 // Restore old mode (this function is only called during text mode)
1094 tmp = VIDEO_BUFFMT_TEXT;
1095 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
1099 * \fn void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
1100 * \brief Updates the video framebuffer
1102 void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
1104 // Only update if this is the current terminal
1105 if( Term != gpVT_CurTerm ) return;
1107 switch( Term->Mode )
1109 case TERM_MODE_TEXT:
1110 // Re copy the entire screen?
1113 giVT_OutputDevHandle,
1115 Term->Width*Term->Height*sizeof(tVT_Char),
1116 &Term->Text[Term->ViewPos]
1119 // Only copy the current line
1121 int pos = Term->WritePos - Term->WritePos % Term->Width;
1123 giVT_OutputDevHandle,
1124 (pos - Term->ViewPos)*sizeof(tVT_Char),
1125 Term->Width*sizeof(tVT_Char),
1132 giVT_OutputDevHandle,
1134 Term->Width*Term->Height*sizeof(Uint32),
1142 * \fn void VT_int_ChangeMode(tVTerm *Term, int NewMode)
1143 * \brief Change the mode of a VTerm
1145 void VT_int_ChangeMode(tVTerm *Term, int NewMode)
1149 case TERM_MODE_TEXT:
1150 Log_Log("VTerm", "Set VT %p to text mode", Term);
1152 Term->Text = calloc( Term->Width*Term->Height*(giVT_Scrollback+1), sizeof(tVT_Char) );
1155 Log_Log("VTerm", "Set VT %p to framebuffer mode (%ix%i)", Term,
1156 Term->Width, Term->Height);
1158 Term->Buffer = calloc( Term->Width*Term->Height, sizeof(Uint32) );
1159 Log_Debug("VTerm", "Term->Buffer = %p", Term->Buffer);
1161 //case TERM_MODE_2DACCEL:
1162 //case TERM_MODE_3DACCEL:
1166 Term->Mode = NewMode;
1172 #define MONOSPACE_FONT 10816
1174 #if MONOSPACE_FONT == 10808 // 8x8
1175 # include "vterm_font_8x8.h"
1176 #elif MONOSPACE_FONT == 10816 // 8x16
1177 # include "vterm_font_8x16.h"
1180 // === PROTOTYPES ===
1181 Uint8 *VT_Font_GetChar(Uint32 Codepoint);
1184 int giVT_CharWidth = FONT_WIDTH;
1185 int giVT_CharHeight = FONT_HEIGHT;
1189 * \fn void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
1190 * \brief Render a font character
1192 void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
1195 Uint32 *buf = Buffer;
1198 font = VT_Font_GetChar(Codepoint);
1200 for(y = 0; y < FONT_HEIGHT; y ++)
1202 for(x = 0; x < FONT_WIDTH; x ++)
1204 if(*font & (1 << (FONT_WIDTH-x-1)))
1215 * \fn Uint32 VT_Colour12to24(Uint16 Col12)
1218 Uint32 VT_Colour12to24(Uint16 Col12)
1223 ret = (tmp << 0) | (tmp << 4);
1224 tmp = (Col12 & 0xF0) >> 4;
1225 ret |= (tmp << 8) | (tmp << 12);
1226 tmp = (Col12 & 0xF00) >> 8;
1227 ret |= (tmp << 16) | (tmp << 20);
1232 * \fn Uint8 *VT_Font_GetChar(Uint32 Codepoint)
1233 * \brief Gets an index into the font array given a Unicode Codepoint
1234 * \note See http://en.wikipedia.org/wiki/CP437
1236 Uint8 *VT_Font_GetChar(Uint32 Codepoint)
1240 return &VTermFont[Codepoint*FONT_HEIGHT];
1243 case 0xC7: index = 128; break; // Ç
1244 case 0xFC: index = 129; break; // ü
1245 case 0xE9: index = 130; break; // é
1246 case 0xE2: index = 131; break; // â
1247 case 0xE4: index = 132; break; // ä
1248 case 0xE0: index = 133; break; // à
1249 case 0xE5: index = 134; break; // å
1250 case 0xE7: index = 135; break; // ç
1251 case 0xEA: index = 136; break; // ê
1252 case 0xEB: index = 137; break; // ë
1253 case 0xE8: index = 138; break; // è
1254 case 0xEF: index = 139; break; // ï
1255 case 0xEE: index = 140; break; // î
1256 case 0xEC: index = 141; break; // ì
1257 case 0xC4: index = 142; break; // Ä
1258 case 0xC5: index = 143; break; // Å
1261 return &VTermFont[index*FONT_HEIGHT];
1264 EXPORTAS(&giVT_CharWidth, giVT_CharWidth);
1265 EXPORTAS(&giVT_CharHeight, giVT_CharHeight);
1266 EXPORT(VT_Font_Render);
1267 EXPORT(VT_Colour12to24);