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
44 short TextWidth; //!< Text Virtual Width
45 short TextHeight; //!< Text Virtual Height
47 int ViewPos; //!< View Buffer Offset (Text Only)
48 int WritePos; //!< Write Buffer Offset (Text Only)
49 Uint32 CurColour; //!< Current Text Colour
51 int InputRead; //!< Input buffer read position
52 int InputWrite; //!< Input buffer write position
53 char InputBuffer[MAX_INPUT_CHARS8];
58 char Name[2]; //!< Name of the terminal
63 extern void Debug_SetKTerminal(char *File);
66 int VT_Install(char **Arguments);
67 void VT_InitOutput(void);
68 void VT_InitInput(void);
69 char *VT_ReadDir(tVFS_Node *Node, int Pos);
70 tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name);
71 int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data);
72 Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
73 Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
74 int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data);
75 void VT_SetResolution(int Width, int Height);
76 void VT_SetMode(int Mode);
77 void VT_SetTerminal(int ID);
78 void VT_KBCallBack(Uint32 Codepoint);
79 void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count);
80 int VT_int_ParseEscape(tVTerm *Term, char *Buffer);
81 void VT_int_PutChar(tVTerm *Term, Uint32 Ch);
82 void VT_int_ScrollFramebuffer( tVTerm *Term );
83 void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll );
84 void VT_int_ChangeMode(tVTerm *Term, int NewMode);
85 void VT_int_UpdateResolution(tVTerm *Term, int NewWidth, int NewHeight);
88 const Uint16 caVT100Colours[] = {
89 // Black, Red, Green, Yellow, Blue, Purple, Cyan, Gray
90 // Same again, but bright
91 VT_COL_BLACK, 0x700, 0x070, 0x770, 0x007, 0x707, 0x077, 0xAAA,
92 VT_COL_GREY, 0xF00, 0x0F0, 0xFF0, 0x00F, 0xF0F, 0x0FF, VT_COL_WHITE
96 MODULE_DEFINE(0, VERSION, VTerm, VT_Install, NULL, DEFAULT_OUTPUT, DEFAULT_INPUT, NULL);
97 tDevFS_Driver gVT_DrvInfo = {
100 .Flags = VFS_FFLAG_DIRECTORY,
104 .ReadDir = VT_ReadDir,
105 .FindDir = VT_FindDir,
106 .IOCtl = VT_Root_IOCtl
110 tVTerm gVT_Terminals[NUM_VTS];
111 int giVT_CurrentTerminal = 0;
112 tVTerm *gpVT_CurTerm = &gVT_Terminals[0];
113 // --- Video State ---
114 short giVT_RealWidth = DEFAULT_WIDTH; //!< Screen Width
115 short giVT_RealHeight = DEFAULT_HEIGHT; //!< Screen Height
116 int giVT_Scrollback = DEFAULT_SCROLLBACK;
117 // --- Driver Handles ---
118 char *gsVT_OutputDevice = NULL;
119 char *gsVT_InputDevice = NULL;
120 int giVT_OutputDevHandle = -2;
121 int giVT_InputDevHandle = -2;
122 // --- Key States --- (Used for VT Switching/Magic Combos)
123 int gbVT_CtrlDown = 0;
124 int gbVT_AltDown = 0;
125 int gbVT_SysrqDown = 0;
129 * \fn int VT_Install(char **Arguments)
130 * \brief Installs the Virtual Terminal Driver
132 int VT_Install(char **Arguments)
139 char **args = Arguments;
140 char *arg, *opt, *val;
141 for( ; (arg = *args); args++ )
143 Log_Debug("VTerm", "Argument '%s'", arg);
145 val = arg + strpos(arg, '='); *val++ = '\0';
147 if( strcmp(opt, "Video") == 0 ) {
148 if(gsVT_OutputDevice) free(gsVT_OutputDevice);
149 gsVT_OutputDevice = strdup(val);
151 else if( strcmp(opt, "Input") == 0 ) {
152 if(gsVT_InputDevice) free(gsVT_InputDevice);
153 gsVT_InputDevice = strdup(val);
155 else if( strcmp(opt, "Width") == 0 ) {
156 giVT_RealWidth = atoi( val );
158 else if( strcmp(opt, "Height") == 0 ) {
159 giVT_RealHeight = atoi( val );
161 else if( strcmp(opt, "Scrollback") == 0 ) {
162 giVT_Scrollback = atoi( val );
168 if(!gsVT_OutputDevice) gsVT_OutputDevice = "/Devices/"DEFAULT_OUTPUT;
169 if(!gsVT_InputDevice) gsVT_InputDevice = "/Devices/"DEFAULT_INPUT;
171 Log_Log("VTerm", "Using '%s' as output", gsVT_OutputDevice);
172 Log_Log("VTerm", "Using '%s' as input", gsVT_InputDevice);
175 for( i = 0; i < NUM_VTS; i++ )
177 gVT_Terminals[i].Mode = TERM_MODE_TEXT;
178 gVT_Terminals[i].Flags = 0;
179 gVT_Terminals[i].CurColour = DEFAULT_COLOUR;
180 gVT_Terminals[i].WritePos = 0;
181 gVT_Terminals[i].ViewPos = 0;
183 VT_int_UpdateResolution( &gVT_Terminals[i], giVT_RealWidth, giVT_RealHeight );
185 gVT_Terminals[i].Name[0] = '0'+i;
186 gVT_Terminals[i].Name[1] = '\0';
187 gVT_Terminals[i].Node.Inode = i;
188 gVT_Terminals[i].Node.ImplPtr = &gVT_Terminals[i];
189 gVT_Terminals[i].Node.NumACLs = 0; // Only root can open virtual terminals
191 gVT_Terminals[i].Node.Read = VT_Read;
192 gVT_Terminals[i].Node.Write = VT_Write;
193 gVT_Terminals[i].Node.IOCtl = VT_Terminal_IOCtl;
197 DevFS_AddDevice( &gVT_DrvInfo );
202 // Set kernel output to VT0
203 Debug_SetKTerminal("/Devices/VTerm/0");
205 Log_Log("VTerm", "Returning %i", MODULE_ERR_OK);
206 return MODULE_ERR_OK;
210 * \fn void VT_InitOutput()
211 * \brief Initialise Video Output
215 giVT_OutputDevHandle = VFS_Open(gsVT_OutputDevice, VFS_OPENFLAG_WRITE);
216 if(giVT_InputDevHandle == -1) {
217 Log_Warning("VTerm", "Oh F**k, I can't open the video device '%s'", gsVT_OutputDevice);
220 VT_SetResolution(giVT_RealWidth, giVT_RealHeight);
222 VT_SetMode( VIDEO_BUFFMT_TEXT );
226 * \fn void VT_InitInput()
227 * \brief Initialises the input
231 giVT_InputDevHandle = VFS_Open(gsVT_InputDevice, VFS_OPENFLAG_READ);
232 if(giVT_InputDevHandle == -1) return ;
233 VFS_IOCtl(giVT_InputDevHandle, KB_IOCTL_SETCALLBACK, VT_KBCallBack);
237 * \fn char *VT_ReadDir(tVFS_Node *Node, int Pos)
238 * \brief Read from the VTerm Directory
240 char *VT_ReadDir(tVFS_Node *Node, int Pos)
242 if(Pos < 0) return NULL;
243 if(Pos >= NUM_VTS) return NULL;
244 return strdup( gVT_Terminals[Pos].Name );
248 * \fn tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name)
249 * \brief Find an item in the VTerm directory
251 tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name)
255 ENTER("pNode sName", Node, Name);
257 // Open the input and output files if needed
258 if(giVT_OutputDevHandle == -2) VT_InitOutput();
259 if(giVT_InputDevHandle == -2) VT_InitInput();
262 if(Name[0] < '0' || Name[0] > '9' || Name[1] != '\0') {
273 LEAVE('p', &gVT_Terminals[num].Node);
274 return &gVT_Terminals[num].Node;
278 * \fn int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
279 * \brief Control the VTerm Driver
281 int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
286 case DRV_IOCTL_TYPE: return DRV_TYPE_MISC;
287 case DRV_IOCTL_IDENT: memcpy(Data, "VT\0\0", 4); return 0;
288 case DRV_IOCTL_VERSION: return VERSION;
289 case DRV_IOCTL_LOOKUP: return 0;
291 case 4: // Get Video Driver
292 if(Data) strcpy(Data, gsVT_OutputDevice);
293 return strlen(gsVT_OutputDevice);
295 case 5: // Set Video Driver
296 if(!Data) return -EINVAL;
297 if(Threads_GetUID() != 0) return -EACCES;
301 free(gsVT_OutputDevice);
303 gsVT_OutputDevice = malloc(len+1);
304 strcpy(gsVT_OutputDevice, Data);
306 VFS_Close(giVT_OutputDevHandle);
307 giVT_OutputDevHandle = -1;
316 * \fn Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
317 * \brief Read from a virtual terminal
319 Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
322 tVTerm *term = &gVT_Terminals[ Node->Inode ];
324 // Check current mode
330 while(term->InputRead == term->InputWrite) Threads_Yield();
332 ((char*)Buffer)[pos] = term->InputBuffer[term->InputRead];
335 term->InputRead %= MAX_INPUT_CHARS8;
343 while(term->InputRead == term->InputWrite) Threads_Yield();
344 ((Uint32*)Buffer)[pos] = ((Uint32*)term->InputBuffer)[term->InputRead];
347 term->InputRead %= MAX_INPUT_CHARS32;
355 * \fn Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
356 * \brief Write to a virtual terminal
358 Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
360 tVTerm *term = &gVT_Terminals[ Node->Inode ];
367 VT_int_PutString(term, Buffer, Length);
370 size = term->Width*term->Height*4;
371 if( Offset > size ) {
372 Log_Notice("VTerm", "VT_Write: Offset (0x%llx) > FBSize (0x%x)",
377 if( Offset + Length > size ) {
378 Log_Notice("VTerm", "VT_Write: Offset+Length (0x%llx) > FBSize (0x%x)",
379 Offset+Length, size);
380 Length = size - Offset;
383 memcpy( (void*)((Uint)term->Buffer + (Uint)Offset), Buffer, Length );
385 if( Node->Inode == giVT_CurrentTerminal )
387 if( giVT_RealWidth > term->Width || giVT_RealHeight > term->Height )
390 x = Offset/4; y = x / term->Width; x %= term->Width;
391 w = Length/4+x; h = w / term->Width; w %= term->Width;
393 x += (giVT_RealWidth - term->Width) / 2;
394 y += (giVT_RealHeight - term->Height) / 2;
397 VFS_WriteAt( giVT_OutputDevHandle,
398 (x + y * giVT_RealWidth)*4,
402 Buffer = (void*)( (Uint)Buffer + term->Width*4 );
408 return VFS_WriteAt( giVT_OutputDevHandle, Offset, Length, Buffer );
411 // Just pass on (for now)
412 case TERM_MODE_2DACCEL:
413 //case TERM_MODE_3DACCEL:
414 if( Node->Inode == giVT_CurrentTerminal )
416 VFS_Write( giVT_OutputDevHandle, Length, Buffer );
425 * \fn int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
426 * \brief Call an IO Control on a virtual terminal
428 int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
432 tVTerm *term = Node->ImplPtr;
433 ENTER("pNode iId pData", Node, Id, Data);
435 if(Id >= DRV_IOCTL_LOOKUP) {
436 // Only root can fiddle with graphics modes
437 // TODO: Remove this and replace with user ownership
438 if( Threads_GetUID() != 0 ) return -1;
445 LEAVE('i', DRV_TYPE_TERMINAL);
446 return DRV_TYPE_TERMINAL;
447 case DRV_IOCTL_IDENT:
448 memcpy(Data, "VT\0\0", 4);
451 case DRV_IOCTL_VERSION:
454 case DRV_IOCTL_LOOKUP:
458 // Get/Set the mode (and apply any changes)
459 case TERM_IOCTL_MODETYPE:
462 if( CheckMem(Data, sizeof(int)) == 0 ) {
466 Log_Log("VTerm", "VTerm %i mode set to %i", (int)Node->Inode, *iData);
468 // Update mode if needed
469 if(term->Mode != *iData)
470 VT_int_ChangeMode(term, *iData);
472 // Update the screen dimensions
473 if(Node->Inode == giVT_CurrentTerminal)
474 VT_SetTerminal( giVT_CurrentTerminal );
476 LEAVE('i', term->Mode);
479 // Get/set the terminal width
480 case TERM_IOCTL_WIDTH:
482 if( CheckMem(Data, sizeof(int)) == 0 ) {
486 if( term->Mode == TERM_MODE_TEXT ) {
487 VT_int_UpdateResolution(term, *iData * giVT_CharWidth, term->Height);
490 VT_int_UpdateResolution(term, *iData, term->Height);
493 if( term->Mode == TERM_MODE_TEXT )
494 ret = term->TextWidth;
500 // Get/set the terminal height
501 case TERM_IOCTL_HEIGHT:
503 if( CheckMem(Data, sizeof(int)) == 0 ) {
507 if( term->Mode == TERM_MODE_TEXT ) {
508 VT_int_UpdateResolution(term, term->Width, *iData * giVT_CharWidth);
511 VT_int_UpdateResolution(term, term->Width, *iData);
514 if( term->Mode == TERM_MODE_TEXT )
515 ret = term->TextHeight = *iData;
521 case TERM_IOCTL_FORCESHOW:
522 Log_Log("VTerm", "Thread %i forced VTerm %i to be shown",
523 Threads_GetTID(), (int)Node->Inode);
524 VT_SetTerminal( Node->Inode );
532 void VT_SetResolution(int Width, int Height)
534 tVideo_IOCtl_Mode mode = {0};
538 // Create the video mode
540 mode.height = Height;
545 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_FINDMODE, &mode );
547 if( Width != mode.width || Height != mode.height )
550 "Selected resolution (%ix%i is not supported) by the device, using (%ix%i)",
551 giVT_RealWidth, giVT_RealHeight,
552 mode.width, mode.height
555 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_GETSETMODE, &tmp );
557 // Resize text terminals if needed
558 if( giVT_RealWidth != mode.width || giVT_RealHeight != mode.height )
560 int newBufSize = (giVT_RealWidth/giVT_CharWidth)
561 *(giVT_RealHeight/giVT_CharHeight)
562 *(giVT_Scrollback+1);
564 // Resize the text terminals
565 giVT_RealWidth = mode.width;
566 giVT_RealHeight = mode.height;
567 for( i = 0; i < NUM_VTS; i ++ )
569 if( gVT_Terminals[i].Mode != TERM_MODE_TEXT ) continue;
571 gVT_Terminals[i].Text = realloc(
572 gVT_Terminals[i].Text,
573 newBufSize*sizeof(tVT_Char)
579 void VT_SetMode(int Mode)
581 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &Mode );
585 * \fn void VT_SetTerminal(int ID)
586 * \brief Set the current terminal
588 void VT_SetTerminal(int ID)
590 // Update current terminal ID
591 Log_Log("VTerm", "Changed terminal from %i to %i", giVT_CurrentTerminal, ID);
592 giVT_CurrentTerminal = ID;
593 gpVT_CurTerm = &gVT_Terminals[ID];
596 if( gpVT_CurTerm->Mode == TERM_MODE_TEXT && !(gpVT_CurTerm->Flags & VT_FLAG_HIDECSR) )
598 tVideo_IOCtl_Pos pos;
599 pos.x = gpVT_CurTerm->WritePos % gpVT_CurTerm->TextWidth;
600 pos.y = gpVT_CurTerm->WritePos / gpVT_CurTerm->TextWidth;
601 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &pos);
604 if( gpVT_CurTerm->Mode == TERM_MODE_TEXT )
605 VT_SetMode( VIDEO_BUFFMT_TEXT );
607 VT_SetMode( VIDEO_BUFFMT_FRAMEBUFFER );
610 VT_int_UpdateScreen( &gVT_Terminals[ ID ], 1 );
614 * \fn void VT_KBCallBack(Uint32 Codepoint)
615 * \brief Called on keyboard interrupt
616 * \param Codepoint Pseudo-UTF32 character
618 * Handles a key press and sends the key code to the user's buffer.
619 * If the code creates a kernel-magic sequence, it is not passed to the
620 * user and is handled in-kernel.
622 void VT_KBCallBack(Uint32 Codepoint)
624 tVTerm *term = gpVT_CurTerm;
626 // How the hell did we get a codepoint of zero?
627 if(Codepoint == 0) return;
630 if( Codepoint & 0x80000000 )
632 Codepoint &= 0x7FFFFFFF;
636 case KEY_RSHIFT: gbVT_CtrlDown = 0; break;
637 case KEY_LSHIFT: gbVT_AltDown = 0; break;
639 case KEY_LALT: gbVT_AltDown &= ~1; break;
640 case KEY_RALT: gbVT_AltDown &= ~2; break;
641 case KEY_LCTRL: gbVT_CtrlDown &= ~1 break;
642 case KEY_RCTRL: gbVT_CtrlDown &= ~2; break;
650 #if !USE_CTRL_ALT // HACK: Use both shifts instead of Ctrl-Alt
651 case KEY_RSHIFT: gbVT_CtrlDown = 1; break;
652 case KEY_LSHIFT: gbVT_AltDown = 1; break;
654 case KEY_LALT: gbVT_AltDown |= 1; break;
655 case KEY_RALT: gbVT_AltDown |= 2; break;
656 case KEY_LCTRL: gbVT_CtrlDown |= 1; break;
657 case KEY_RCTRL: gbVT_CtrlDown |= 2; break;
661 if(!gbVT_AltDown || !gbVT_CtrlDown)
665 case KEY_F1: VT_SetTerminal(0); return;
666 case KEY_F2: VT_SetTerminal(1); return;
667 case KEY_F3: VT_SetTerminal(2); return;
668 case KEY_F4: VT_SetTerminal(3); return;
669 case KEY_F5: VT_SetTerminal(4); return;
670 case KEY_F6: VT_SetTerminal(5); return;
671 case KEY_F7: VT_SetTerminal(6); return;
672 case KEY_F8: VT_SetTerminal(7); return;
673 case KEY_F9: VT_SetTerminal(8); return;
674 case KEY_F10: VT_SetTerminal(9); return;
675 case KEY_F11: VT_SetTerminal(10); return;
676 case KEY_F12: VT_SetTerminal(11); return;
679 if( gpVT_CurTerm->ViewPos > gpVT_CurTerm->Width )
680 gpVT_CurTerm->ViewPos -= gpVT_CurTerm->Width;
682 gpVT_CurTerm->ViewPos = 0;
685 if( gpVT_CurTerm->ViewPos < gpVT_CurTerm->Width*gpVT_CurTerm->Height*(giVT_Scrollback-1) )
686 gpVT_CurTerm->ViewPos += gpVT_CurTerm->Width;
688 gpVT_CurTerm->ViewPos = gpVT_CurTerm->Width*gpVT_CurTerm->Height*(giVT_Scrollback-1);
694 if(term->Mode == TERM_MODE_TEXT)
699 // Ignore Modifer Keys
700 if(Codepoint > KEY_MODIFIERS) return;
702 // Get UTF-8/ANSI Encoding
706 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'D';
710 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'C';
714 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'A';
718 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'B';
723 buf[0] = '\x1B'; buf[1] = '['; buf[2] = '5'; // Some overline also
724 //len = 4; // Commented out until I'm sure
730 // Attempt to encode in UTF-8
732 len = WriteUTF8( buf, Codepoint );
734 Warning("Codepoint (%x) is unrepresentable in UTF-8", Codepoint);
740 // Unprintable / Don't Pass
745 if( MAX_INPUT_CHARS8 - term->InputWrite >= len )
746 memcpy( &term->InputBuffer[term->InputWrite], buf, len );
748 memcpy( &term->InputBuffer[term->InputWrite], buf, MAX_INPUT_CHARS8 - term->InputWrite );
749 memcpy( &term->InputBuffer[0], buf, len - (MAX_INPUT_CHARS8 - term->InputWrite) );
751 // Roll the buffer over
752 term->InputWrite += len;
753 term->InputWrite %= MAX_INPUT_CHARS8;
754 if( (term->InputWrite - term->InputRead + MAX_INPUT_CHARS8)%MAX_INPUT_CHARS8 < len ) {
755 term->InputRead = term->InputWrite + 1;
756 term->InputRead %= MAX_INPUT_CHARS8;
762 // Encode the raw UTF-32 Key
763 ((Uint32*)term->InputBuffer)[ term->InputWrite ] = Codepoint;
765 term->InputWrite %= MAX_INPUT_CHARS32;
766 if(term->InputRead == term->InputWrite) {
768 term->InputRead %= MAX_INPUT_CHARS32;
774 * \fn void VT_int_ClearLine(tVTerm *Term, int Num)
775 * \brief Clears a line in a virtual terminal
777 void VT_int_ClearLine(tVTerm *Term, int Num)
780 tVT_Char *cell = &Term->Text[ Num*Term->TextWidth ];
781 if( Num < 0 || Num >= Term->TextHeight ) return ;
782 //ENTER("pTerm iNum", Term, Num);
783 for( i = Term->TextWidth; i--; )
786 cell[ i ].Colour = Term->CurColour;
792 * \fn int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
793 * \brief Parses a VT100 Escape code
795 int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
800 int args[6] = {0,0,0,0};
808 if( '0' <= c && c <= '9' )
811 if(c == ';') c = Buffer[j++];
812 while('0' <= c && c <= '9') {
822 // Get string (what does this do?)
830 //Log_Debug("VTerm", "argc = %i", argc);
833 if( ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
839 if(argc == 1) tmp = args[0];
842 if( Term->WritePos-(tmp-1) % Term->TextWidth == 0 )
843 Term->WritePos -= Term->WritePos % Term->TextWidth;
845 Term->WritePos -= tmp;
850 if(argc == 1) tmp = args[0];
852 if( (Term->WritePos + tmp) % Term->TextWidth == 0 ) {
853 Term->WritePos -= Term->WritePos % Term->TextWidth;
854 Term->WritePos += Term->TextWidth - 1;
856 Term->WritePos += tmp;
866 int i = Term->TextHeight * (giVT_Scrollback + 1);
867 while( i-- ) VT_int_ClearLine(Term, i);
870 VT_int_UpdateScreen(Term, 1);
875 // Set cursor position
877 Term->WritePos = args[0] + args[1]*Term->TextWidth;
878 Log_Debug("VTerm", "args = {%i, %i}", args[0], args[1]);
885 if( 0 <= args[argc] && args[argc] <= 8)
889 case 0: Term->CurColour = DEFAULT_COLOUR; break; // Reset
890 case 1: Term->CurColour |= 0x80000000; break; // Bright
891 case 2: Term->CurColour &= ~0x80000000; break; // Dim
895 else if(30 <= args[argc] && args[argc] <= 37) {
896 Term->CurColour &= 0xF000FFFF;
897 Term->CurColour |= (Uint32)caVT100Colours[ args[argc]-30+(Term->CurColour>>28) ] << 16;
900 else if(40 <= args[argc] && args[argc] <= 47) {
901 Term->CurColour &= 0xFFFF8000;
902 Term->CurColour |= caVT100Colours[ args[argc]-40+((Term->CurColour>>12)&15) ];
907 Log_Warning("VTerm", "Unknown control sequence");
916 //Log_Debug("VTerm", "j = %i, Buffer = '%s'", j, Buffer);
921 * \fn void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
922 * \brief Print a string to the Virtual Terminal
924 void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
930 for( i = 0; i < Count; i++ )
932 // Handle escape sequences
933 if( Buffer[i] == 0x1B )
936 i += VT_int_ParseEscape(Term, (char*)&Buffer[i]) - 1;
940 // Fast check for non UTF-8
941 if( Buffer[i] < 128 ) // Plain ASCII
942 VT_int_PutChar(Term, Buffer[i]);
944 i += ReadUTF8(&Buffer[i], &val) - 1;
945 VT_int_PutChar(Term, val);
949 VT_int_UpdateScreen( Term, 0 );
952 if( Term == gpVT_CurTerm && !(Term->Flags & VT_FLAG_HIDECSR) )
954 tVideo_IOCtl_Pos pos;
955 pos.x = Term->WritePos % Term->TextWidth;
956 pos.y = Term->WritePos / Term->TextWidth;
957 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &pos);
962 * \fn void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
963 * \brief Write a single character to a VTerm
965 void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
971 case '\0': return; // Ignore NULL byte
973 VT_int_UpdateScreen( Term, 0 ); // Update the line before newlining
974 Term->WritePos += Term->TextWidth;
976 Term->WritePos -= Term->WritePos % Term->TextWidth;
981 Term->Text[ Term->WritePos ].Ch = '\0';
982 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
984 } while(Term->WritePos & 7);
988 // Backspace is invalid at Offset 0
989 if(Term->WritePos == 0) break;
993 if(Term->Text[ Term->WritePos ].Ch != '\0') {
994 Term->Text[ Term->WritePos ].Ch = 0;
995 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
999 i = 7; // Limit it to 8
1001 Term->Text[ Term->WritePos ].Ch = 0;
1002 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
1004 } while(Term->WritePos && i-- && Term->Text[ Term->WritePos ].Ch == '\0');
1005 if(Term->Text[ Term->WritePos ].Ch != '\0')
1010 Term->Text[ Term->WritePos ].Ch = Ch;
1011 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
1017 // - Check if we need to scroll the entire scrollback buffer
1018 if(Term->WritePos >= Term->TextWidth*Term->TextHeight*(giVT_Scrollback+1))
1022 //Debug("Scrolling entire buffer");
1025 Term->WritePos -= Term->TextWidth;
1027 VT_int_UpdateScreen( Term, 0 );
1029 // Update view position
1030 base = Term->TextWidth*Term->TextHeight*(giVT_Scrollback);
1031 if(Term->ViewPos < base)
1032 Term->ViewPos += Term->Width;
1033 if(Term->ViewPos > base)
1034 Term->ViewPos = base;
1036 // Scroll terminal cache
1037 base = Term->TextWidth*(Term->TextHeight*(giVT_Scrollback+1)-1);
1040 &Term->Text[Term->TextWidth],
1041 base*sizeof(tVT_Char)
1045 for( i = 0; i < Term->TextWidth; i ++ )
1047 Term->Text[ base + i ].Ch = 0;
1048 Term->Text[ base + i ].Colour = Term->CurColour;
1051 VT_int_ScrollFramebuffer( Term );
1052 VT_int_UpdateScreen( Term, 0 );
1054 // Ok, so we only need to scroll the screen
1055 else if(Term->WritePos >= Term->ViewPos + Term->TextWidth*Term->TextHeight)
1057 //Debug("Term->WritePos (%i) >= %i",
1059 // Term->ViewPos + Term->Width*Term->Height
1061 //Debug("Scrolling screen only");
1063 // Update the last line
1064 Term->WritePos -= Term->TextWidth;
1065 VT_int_UpdateScreen( Term, 0 );
1066 Term->WritePos += Term->TextWidth;
1069 Term->ViewPos += Term->TextWidth;
1070 //Debug("Term->ViewPos = %i", Term->ViewPos);
1071 VT_int_ScrollFramebuffer( Term );
1072 VT_int_UpdateScreen( Term, 0 );
1079 * \fn void VT_int_ScrollFramebuffer( tVTerm *Term )
1080 * \note Scrolls the framebuffer by 1 text line
1082 void VT_int_ScrollFramebuffer( tVTerm *Term )
1092 // Only update if this is the current terminal
1093 if( Term != gpVT_CurTerm ) return;
1095 // Switch to 2D Command Stream
1096 tmp = VIDEO_BUFFMT_2DSTREAM;
1097 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
1099 // BLIT from 0,0 to 0,giVT_CharHeight
1100 buf.Op = VIDEO_2DOP_BLIT;
1101 buf.DstX = 0; buf.DstY = 0;
1102 buf.SrcX = 0; buf.SrcY = giVT_CharHeight;
1103 buf.W = Term->TextWidth * giVT_CharWidth;
1104 buf.H = (Term->TextHeight-1) * giVT_CharHeight;
1105 VFS_WriteAt(giVT_OutputDevHandle, 0, sizeof(buf), &buf);
1107 // Restore old mode (this function is only called during text mode)
1108 tmp = VIDEO_BUFFMT_TEXT;
1109 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
1113 * \fn void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
1114 * \brief Updates the video framebuffer
1116 void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
1118 // Only update if this is the current terminal
1119 if( Term != gpVT_CurTerm ) return;
1121 switch( Term->Mode )
1123 case TERM_MODE_TEXT:
1124 // Re copy the entire screen?
1127 giVT_OutputDevHandle,
1129 Term->TextWidth*Term->TextHeight*sizeof(tVT_Char),
1130 &Term->Text[Term->ViewPos]
1133 // Only copy the current line
1135 int pos = Term->WritePos - Term->WritePos % Term->TextWidth;
1137 giVT_OutputDevHandle,
1138 (pos - Term->ViewPos)*sizeof(tVT_Char),
1139 Term->TextWidth*sizeof(tVT_Char),
1146 giVT_OutputDevHandle,
1148 Term->Width*Term->Height*sizeof(Uint32),
1156 * \fn void VT_int_ChangeMode(tVTerm *Term, int NewMode)
1157 * \brief Change the mode of a VTerm
1159 void VT_int_ChangeMode(tVTerm *Term, int NewMode)
1163 case TERM_MODE_TEXT:
1164 Log_Log("VTerm", "Set VT %p to text mode", Term);
1167 Log_Log("VTerm", "Set VT %p to framebuffer mode (%ix%i)",
1168 Term, Term->Width, Term->Height);
1170 //case TERM_MODE_2DACCEL:
1171 //case TERM_MODE_3DACCEL:
1175 Term->Mode = NewMode;
1178 void VT_int_UpdateResolution(tVTerm *Term, int NewWidth, int NewHeight)
1180 int oldW = Term->Width;
1181 int oldTW = oldW / giVT_CharWidth;
1182 int oldH = Term->Height;
1183 int oldTH = oldH / giVT_CharWidth;
1184 tVT_Char *oldTBuf = Term->Text;
1185 Uint32 *oldFB = Term->Buffer;
1188 // TODO: Increase RealWidth/RealHeight when this happens
1189 if(NewWidth > giVT_RealWidth) NewWidth = giVT_RealWidth;
1190 if(NewHeight > giVT_RealHeight) NewHeight = giVT_RealHeight;
1192 // Calculate new dimensions
1193 Term->TextWidth = NewWidth / giVT_CharWidth;
1194 Term->TextHeight = NewHeight / giVT_CharHeight;
1195 Term->Width = NewWidth;
1196 Term->Height = NewHeight;
1198 // Allocate new buffers
1200 Term->Text = calloc(
1201 Term->TextWidth * Term->TextHeight * (giVT_Scrollback+1),
1207 if( w > Term->TextWidth ) w = Term->TextWidth;
1209 if( h > Term->TextHeight ) h = Term->TextHeight;
1210 h *= giVT_Scrollback + 1;
1211 for( i = 0; i < h; i ++ )
1214 &Term->Text[i*Term->TextWidth],
1223 Term->Buffer = calloc( Term->Width * Term->Height, sizeof(Uint32) );
1227 if( w > Term->Width ) w = Term->Width;
1229 if( h > Term->Height ) h = Term->Height;
1230 for( i = 0; i < h; i ++ )
1233 &Term->Buffer[i*Term->Width],
1244 #define MONOSPACE_FONT 10816
1246 #if MONOSPACE_FONT == 10808 // 8x8
1247 # include "vterm_font_8x8.h"
1248 #elif MONOSPACE_FONT == 10816 // 8x16
1249 # include "vterm_font_8x16.h"
1252 // === PROTOTYPES ===
1253 Uint8 *VT_Font_GetChar(Uint32 Codepoint);
1256 int giVT_CharWidth = FONT_WIDTH;
1257 int giVT_CharHeight = FONT_HEIGHT;
1261 * \fn void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
1262 * \brief Render a font character
1264 void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
1267 Uint32 *buf = Buffer;
1270 font = VT_Font_GetChar(Codepoint);
1272 for(y = 0; y < FONT_HEIGHT; y ++)
1274 for(x = 0; x < FONT_WIDTH; x ++)
1276 if(*font & (1 << (FONT_WIDTH-x-1)))
1287 * \fn Uint32 VT_Colour12to24(Uint16 Col12)
1290 Uint32 VT_Colour12to24(Uint16 Col12)
1295 ret = (tmp << 0) | (tmp << 4);
1296 tmp = (Col12 & 0xF0) >> 4;
1297 ret |= (tmp << 8) | (tmp << 12);
1298 tmp = (Col12 & 0xF00) >> 8;
1299 ret |= (tmp << 16) | (tmp << 20);
1304 * \fn Uint8 *VT_Font_GetChar(Uint32 Codepoint)
1305 * \brief Gets an index into the font array given a Unicode Codepoint
1306 * \note See http://en.wikipedia.org/wiki/CP437
1308 Uint8 *VT_Font_GetChar(Uint32 Codepoint)
1312 return &VTermFont[Codepoint*FONT_HEIGHT];
1315 case 0xC7: index = 128; break; // Ç
1316 case 0xFC: index = 129; break; // ü
1317 case 0xE9: index = 130; break; // é
1318 case 0xE2: index = 131; break; // â
1319 case 0xE4: index = 132; break; // ä
1320 case 0xE0: index = 133; break; // à
1321 case 0xE5: index = 134; break; // å
1322 case 0xE7: index = 135; break; // ç
1323 case 0xEA: index = 136; break; // ê
1324 case 0xEB: index = 137; break; // ë
1325 case 0xE8: index = 138; break; // è
1326 case 0xEF: index = 139; break; // ï
1327 case 0xEE: index = 140; break; // î
1328 case 0xEC: index = 141; break; // ì
1329 case 0xC4: index = 142; break; // Ä
1330 case 0xC5: index = 143; break; // Å
1333 return &VTermFont[index*FONT_HEIGHT];
1336 EXPORTAS(&giVT_CharWidth, giVT_CharWidth);
1337 EXPORTAS(&giVT_CharHeight, giVT_CharHeight);
1338 EXPORT(VT_Font_Render);
1339 EXPORT(VT_Colour12to24);