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 VT_SCROLLBACK 1 // 2 Screens of text
22 #define DEFAULT_OUTPUT "VGA"
23 //#define DEFAULT_OUTPUT "BochsGA"
24 //#define DEFAULT_OUTPUT "Vesa"
25 #define DEFAULT_INPUT "PS2Keyboard"
26 #define DEFAULT_WIDTH 80
27 #define DEFAULT_HEIGHT 25
28 #define DEFAULT_COLOUR (VT_COL_BLACK|(0xAAA<<16))
30 #define VT_FLAG_HIDECSR 0x01
31 #define VT_FLAG_HASFB 0x10 //!< Set if the VTerm has requested the Framebuffer
34 VT_INMODE_TEXT8, // UTF-8 Text Mode (VT100 Emulation)
35 VT_INMODE_TEXT32, // UTF-32 Text Mode (Acess Native)
41 int Mode; //!< Current Mode (see ::eTplTerminal_Modes)
42 int Flags; //!< Flags (see VT_FLAG_*)
43 short Width; //!< Virtual Width
44 short Height; //!< Virtual Height
46 int ViewPos; //!< View Buffer Offset (Text Only)
47 int WritePos; //!< Write Buffer Offset (Text Only)
48 Uint32 CurColour; //!< Current Text Colour
50 int InputRead; //!< Input buffer read position
51 int InputWrite; //!< Input buffer write position
52 char InputBuffer[MAX_INPUT_CHARS8];
57 char Name[2]; //!< Name of the terminal
62 extern void Debug_SetKTerminal(char *File);
65 int VT_Install(char **Arguments);
66 char *VT_ReadDir(tVFS_Node *Node, int Pos);
67 tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name);
68 int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data);
69 Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
70 Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
71 int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data);
72 void VT_SetTerminal(int ID);
73 void VT_KBCallBack(Uint32 Codepoint);
74 void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count);
75 int VT_int_ParseEscape(tVTerm *Term, char *Buffer);
76 void VT_int_PutChar(tVTerm *Term, Uint32 Ch);
77 void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll );
78 void VT_int_ChangeMode(tVTerm *Term, int NewMode);
81 const Uint16 caVT100Colours[] = {
82 VT_COL_BLACK, 0x700, 0x070, 0x770, 0x007, 0x707, 0x077, 0xAAA,
83 VT_COL_GREY, 0xF00, 0x0F0, 0xFF0, 0x00F, 0xF0F, 0x0FF, VT_COL_WHITE
87 MODULE_DEFINE(0, VERSION, VTerm, VT_Install, NULL, DEFAULT_OUTPUT, DEFAULT_INPUT, NULL);
88 tDevFS_Driver gVT_DrvInfo = {
91 .Flags = VFS_FFLAG_DIRECTORY,
95 .ReadDir = VT_ReadDir,
96 .FindDir = VT_FindDir,
97 .IOCtl = VT_Root_IOCtl
101 tVTerm gVT_Terminals[NUM_VTS];
102 int giVT_CurrentTerminal = 0;
103 // --- Video State ---
104 short giVT_RealWidth; //!< Real Width
105 short giVT_RealHeight; //!< Real Height
106 int gbVT_TextMode = 1;
107 // --- Driver Handles ---
108 char *gsVT_OutputDevice = NULL;
109 char *gsVT_InputDevice = NULL;
110 int giVT_OutputDevHandle = -2;
111 int giVT_InputDevHandle = -2;
112 // --- Key States --- (Used for VT Switching/Magic Combos)
113 int gbVT_CtrlDown = 0;
114 int gbVT_AltDown = 0;
115 int gbVT_SysrqDown = 0;
119 * \fn int VT_Install(char **Arguments)
120 * \brief Installs the Virtual Terminal Driver
122 int VT_Install(char **Arguments)
124 char **args = Arguments;
131 for( ; (arg = *args); args++ )
133 if(arg[0] != '-') continue;
139 if(args[1] == NULL) break;
140 if(gsVT_OutputDevice) free(gsVT_OutputDevice);
141 gsVT_OutputDevice = malloc(strlen(args[1])+1);
142 strcpy(gsVT_OutputDevice, args[1]);
148 if(args[1] == NULL) break;
149 if(gsVT_InputDevice) free(gsVT_InputDevice);
150 gsVT_InputDevice = malloc(strlen(args[1])+1);
151 strcpy(gsVT_InputDevice, args[1]);
160 if(!gsVT_OutputDevice) gsVT_OutputDevice = "/Devices/"DEFAULT_OUTPUT;
161 if(!gsVT_InputDevice) gsVT_InputDevice = "/Devices/"DEFAULT_INPUT;
163 Log_Log("VTerm", "Using '%s' as output", gsVT_OutputDevice);
164 Log_Log("VTerm", "Using '%s' as input", gsVT_InputDevice);
167 for( i = 0; i < NUM_VTS; i++ )
169 gVT_Terminals[i].Mode = TERM_MODE_TEXT;
170 gVT_Terminals[i].Flags = 0;
171 gVT_Terminals[i].Width = DEFAULT_WIDTH;
172 gVT_Terminals[i].Height = DEFAULT_HEIGHT;
173 gVT_Terminals[i].CurColour = DEFAULT_COLOUR;
174 gVT_Terminals[i].WritePos = 0;
175 gVT_Terminals[i].ViewPos = 0;
177 gVT_Terminals[i].Buffer = calloc( DEFAULT_WIDTH*DEFAULT_HEIGHT*VT_SCROLLBACK, sizeof(tVT_Char) );
179 gVT_Terminals[i].Name[0] = '0'+i;
180 gVT_Terminals[i].Name[1] = '\0';
181 gVT_Terminals[i].Node.Inode = i;
182 gVT_Terminals[i].Node.ImplPtr = &gVT_Terminals[i];
183 gVT_Terminals[i].Node.NumACLs = 0; // Only root can open virtual terminals
185 gVT_Terminals[i].Node.Read = VT_Read;
186 gVT_Terminals[i].Node.Write = VT_Write;
187 gVT_Terminals[i].Node.IOCtl = VT_Terminal_IOCtl;
191 DevFS_AddDevice( &gVT_DrvInfo );
193 // Set kernel output to VT0
194 Debug_SetKTerminal("/Devices/VTerm/0");
196 return MODULE_ERR_OK;
200 * \fn void VT_InitOutput()
201 * \brief Initialise Video Output
205 giVT_OutputDevHandle = VFS_Open(gsVT_OutputDevice, VFS_OPENFLAG_WRITE);
210 * \fn void VT_InitInput()
211 * \brief Initialises the input
215 giVT_InputDevHandle = VFS_Open(gsVT_InputDevice, VFS_OPENFLAG_READ);
216 if(giVT_InputDevHandle == -1) return ;
217 VFS_IOCtl(giVT_InputDevHandle, KB_IOCTL_SETCALLBACK, VT_KBCallBack);
221 * \fn char *VT_ReadDir(tVFS_Node *Node, int Pos)
222 * \brief Read from the VTerm Directory
224 char *VT_ReadDir(tVFS_Node *Node, int Pos)
226 if(Pos < 0) return NULL;
227 if(Pos >= NUM_VTS) return NULL;
228 return strdup( gVT_Terminals[Pos].Name );
232 * \fn tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name)
233 * \brief Find an item in the VTerm directory
235 tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name)
239 //ENTER("pNode sName", Node, Name);
241 // Open the input and output files if needed
242 if(giVT_OutputDevHandle == -2) VT_InitOutput();
243 if(giVT_InputDevHandle == -2) VT_InitInput();
246 if(Name[0] < '0' || Name[0] > '9' || Name[1] != '\0') {
257 //LEAVE('p', &gVT_Terminals[num].Node);
258 return &gVT_Terminals[num].Node;
262 * \fn int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
263 * \brief Control the VTerm Driver
265 int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
270 case DRV_IOCTL_TYPE: return DRV_TYPE_MISC;
271 case DRV_IOCTL_IDENT: memcpy(Data, "VT\0\0", 4); return 0;
272 case DRV_IOCTL_VERSION: return VERSION;
273 case DRV_IOCTL_LOOKUP: return 0;
275 case 4: // Get Video Driver
276 if(Data) strcpy(Data, gsVT_OutputDevice);
277 return strlen(gsVT_OutputDevice);
279 case 5: // Set Video Driver
280 if(!Data) return -EINVAL;
281 if(Threads_GetUID() != 0) return -EACCES;
285 free(gsVT_OutputDevice);
287 gsVT_OutputDevice = malloc(len+1);
288 strcpy(gsVT_OutputDevice, Data);
290 VFS_Close(giVT_OutputDevHandle);
291 giVT_OutputDevHandle = -1;
300 * \fn Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
301 * \brief Read from a virtual terminal
303 Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
306 tVTerm *term = &gVT_Terminals[ Node->Inode ];
308 // Check current mode
314 while(term->InputRead == term->InputWrite) Threads_Yield();
316 ((char*)Buffer)[pos] = term->InputBuffer[term->InputRead];
319 term->InputRead %= MAX_INPUT_CHARS8;
327 while(term->InputRead == term->InputWrite) Threads_Yield();
328 ((Uint32*)Buffer)[pos] = ((Uint32*)term->InputBuffer)[term->InputRead];
331 term->InputRead %= MAX_INPUT_CHARS32;
339 * \fn Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
340 * \brief Write to a virtual terminal
342 Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
344 tVTerm *term = &gVT_Terminals[ Node->Inode ];
346 //ENTER("pNode XOffset XLength pBuffer", Node, Offset, Length, Buffer);
352 VT_int_PutString(term, Buffer, Length);
355 if( giVT_RealWidth > term->Width || giVT_RealHeight > term->Height )
359 x = Offset/4; y = x / term->Width; x %= term->Width;
360 w = Length/4+x; h = w / term->Width; w %= term->Width;
363 VFS_WriteAt( giVT_OutputDevHandle,
364 (x+y*term->RealWidth)*4,
368 Buffer = (void*)( (Uint)Buffer + term->Width*term->Height*4 );
374 return VFS_WriteAt( giVT_OutputDevHandle, Offset, Length, Buffer );
383 * \fn int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
384 * \brief Call an IO Control on a virtual terminal
386 int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
389 tVTerm *term = Node->ImplPtr;
390 ENTER("pNode iId pData", Node, Id, Data);
392 if(Id >= DRV_IOCTL_LOOKUP) {
393 if( Threads_GetUID() != 0 ) return -1;
399 LEAVE('i', DRV_TYPE_TERMINAL);
400 return DRV_TYPE_TERMINAL;
401 case DRV_IOCTL_IDENT:
402 memcpy(Data, "VT\0\0", 4);
405 case DRV_IOCTL_VERSION:
408 case DRV_IOCTL_LOOKUP:
412 // Get/Set the mode (and apply any changes)
413 case TERM_IOCTL_MODETYPE:
416 if(term->Mode != *iData)
417 VT_int_ChangeMode(term, *iData);
419 // Update the screen dimensions
420 if(giVT_CurrentTerminal == Node->Inode)
421 VT_SetTerminal( giVT_CurrentTerminal );
423 LEAVE('i', term->Mode);
426 // Get/set the terminal width
427 case TERM_IOCTL_WIDTH:
428 if(Data != NULL) term->Width = *iData;
429 Log("VT_Terminal_IOCtl - RETURN term->Width = %i", term->Width);
430 LEAVE('i', term->Width);
433 // Get/set the terminal height
434 case TERM_IOCTL_HEIGHT:
435 if(Data != NULL) term->Height = *iData;
436 Log("VT_Terminal_IOCtl - RETURN term->Height = %i", term->Height);
437 LEAVE('i', term->Height);
440 case TERM_IOCTL_FORCESHOW:
441 VT_SetTerminal( Node->Inode );
449 void VT_SetResolution(int IsTextMode, int Width, int Height)
451 tVideo_IOCtl_Mode mode = {0};
454 // Create the video mode
456 mode.height = Height;
461 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_FINDMODE, &mode );
463 giVT_RealWidth = mode.width;
464 giVT_RealHeight = mode.height;
465 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_GETSETMODE, &tmp );
470 tmp = VIDEO_BUFFMT_TEXT;
472 tmp = VIDEO_BUFFMT_FRAMEBUFFER;
473 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp );
477 * \fn void VT_SetTerminal(int ID)
478 * \brief Set the current terminal
480 void VT_SetTerminal(int ID)
482 // Update current terminal ID
483 Log_Log("VTerm", "Changed terminal from %i to %i", giVT_CurrentTerminal, ID);
484 giVT_CurrentTerminal = ID;
487 VT_int_UpdateScreen( &gVT_Terminals[ ID ], 1 );
491 * \fn void VT_KBCallBack(Uint32 Codepoint)
492 * \brief Called on keyboard interrupt
493 * \param Codepoint Pseudo-UTF32 character
495 * Handles a key press and sends the key code to the user's buffer.
496 * If the code creates a kernel-magic sequence, it is not passed to the
497 * user and is handled in-kernel.
499 void VT_KBCallBack(Uint32 Codepoint)
501 tVTerm *term = &gVT_Terminals[giVT_CurrentTerminal];
503 // How the hell did we get a Codepoint of zero?
504 if(Codepoint == 0) return;
507 if( Codepoint & 0x80000000 )
509 Codepoint &= 0x7FFFFFFF;
513 case KEY_RSHIFT: gbVT_CtrlDown = 0; break;
514 case KEY_LSHIFT: gbVT_AltDown = 0; break;
532 case KEY_RSHIFT: gbVT_CtrlDown = 1; break;
533 case KEY_LSHIFT: gbVT_AltDown = 1; break;
547 if(!gbVT_AltDown || !gbVT_CtrlDown)
552 case KEY_F1: VT_SetTerminal(0); return;
553 case KEY_F2: VT_SetTerminal(1); return;
554 case KEY_F3: VT_SetTerminal(2); return;
555 case KEY_F4: VT_SetTerminal(3); return;
556 case KEY_F5: VT_SetTerminal(4); return;
557 case KEY_F6: VT_SetTerminal(5); return;
558 case KEY_F7: VT_SetTerminal(6); return;
559 case KEY_F8: VT_SetTerminal(7); return;
560 case KEY_F9: VT_SetTerminal(8); return;
561 case KEY_F10: VT_SetTerminal(9); return;
562 case KEY_F11: VT_SetTerminal(10); return;
563 case KEY_F12: VT_SetTerminal(11); return;
572 if(term->Mode == TERM_MODE_TEXT)
577 // Ignore Modifer Keys
578 if(Codepoint > KEY_MODIFIERS) return;
580 // Get UTF-8/ANSI Encoding
584 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'D';
588 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'C';
592 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'A';
596 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'B';
601 buf[0] = '\x1B'; buf[1] = '['; buf[2] = '5'; // Some overline also
602 //len = 4; // Commented out until I'm sure
608 // Attempt to encode in UTF-8
610 len = WriteUTF8( buf, Codepoint );
612 Warning("Codepoint (%x) is unrepresentable in UTF-8", Codepoint);
618 // Unprintable / Don't Pass
623 if( MAX_INPUT_CHARS8 - term->InputWrite >= len )
624 memcpy( &term->InputBuffer[term->InputWrite], buf, len );
626 memcpy( &term->InputBuffer[term->InputWrite], buf, MAX_INPUT_CHARS8 - term->InputWrite );
627 memcpy( &term->InputBuffer[0], buf, len - (MAX_INPUT_CHARS8 - term->InputWrite) );
629 // Roll the buffer over
630 term->InputWrite += len;
631 term->InputWrite %= MAX_INPUT_CHARS8;
632 if( (term->InputWrite - term->InputRead + MAX_INPUT_CHARS8)%MAX_INPUT_CHARS8 < len ) {
633 term->InputRead = term->InputWrite + 1;
634 term->InputRead %= MAX_INPUT_CHARS8;
640 // Encode the raw UTF-32 Key
641 ((Uint32*)term->InputBuffer)[ term->InputWrite ] = Codepoint;
643 term->InputWrite %= MAX_INPUT_CHARS32;
644 if(term->InputRead == term->InputWrite) {
646 term->InputRead %= MAX_INPUT_CHARS32;
652 * \fn void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
653 * \brief Print a string to the Virtual Terminal
655 void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
659 for( i = 0; i < Count; i++ )
661 if( Buffer[i] == 0x1B ) // Escape Sequence
664 i += VT_int_ParseEscape(Term, (char*)&Buffer[i]);
668 if( Buffer[i] < 128 ) // Plain ASCII
669 VT_int_PutChar(Term, Buffer[i]);
671 i += ReadUTF8(&Buffer[i], &val);
672 VT_int_PutChar(Term, val);
677 if( !(Term->Flags & VT_FLAG_HIDECSR) )
679 tVideo_IOCtl_Pos pos;
680 pos.x = Term->WritePos % Term->Width;
681 pos.y = Term->WritePos / Term->Width;
682 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &pos);
687 * \fn void VT_int_ClearLine(tVTerm *Term, int Num)
688 * \brief Clears a line in a virtual terminal
690 void VT_int_ClearLine(tVTerm *Term, int Num)
693 //ENTER("pTerm iNum", Term, Num);
694 for( i = Term->Width; i--; )
696 Term->Text[ Num*Term->Width + i ].Ch = 0;
697 Term->Text[ Num*Term->Width + i ].Colour = Term->CurColour;
703 * \fn int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
704 * \brief Parses a VT100 Escape code
706 int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
711 int args[4] = {0,0,0,0};
719 while('0' <= c && c <= '9') {
724 if( j != 1 ) argc ++;
727 // Get string (what does this do?)
735 if( ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
741 if(argc == 1) tmp = args[0];
744 if( Term->WritePos-(tmp-1) % Term->Width == 0 )
745 Term->WritePos -= Term->WritePos % Term->Width;
747 Term->WritePos -= tmp;
752 if(argc == 1) tmp = args[0];
754 if( (Term->WritePos + tmp) % Term->Width == 0 ) {
755 Term->WritePos -= Term->WritePos % Term->Width;
756 Term->WritePos += Term->Width - 1;
758 Term->WritePos += tmp;
768 int i = Term->Height * VT_SCROLLBACK;
769 while( i-- ) VT_int_ClearLine(Term, i);
772 VT_int_UpdateScreen(Term, 1);
782 if( 0 <= args[argc] && args[argc] <= 8)
786 case 0: Term->CurColour = DEFAULT_COLOUR; break; // Reset
787 case 1: Term->CurColour |= 0x80000000; break; // Bright
788 case 2: Term->CurColour &= ~0x80000000; break; // Dim
792 else if(30 <= args[argc] && args[argc] <= 37) {
793 Term->CurColour &= 0xF000FFFF;
794 Term->CurColour |= (Uint32)caVT100Colours[ args[argc]-30+(Term->CurColour>>28) ] << 16;
797 else if(40 <= args[argc] && args[argc] <= 47) {
798 Term->CurColour &= 0xFFFF8000;
799 Term->CurColour |= caVT100Colours[ args[argc]-40+((Term->CurColour>>12)&15) ];
815 * \fn void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
816 * \brief Write a single character to a VTerm
818 void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
821 //ENTER("pTerm xCh", Term, Ch);
822 //LOG("Term = {WritePos:%i, ViewPos:%i}", Term->WritePos, Term->ViewPos);
826 case '\0': return; // Ignore NULL byte
828 Term->WritePos += Term->Width;
830 Term->WritePos -= Term->WritePos % Term->Width;
835 Term->Text[ Term->WritePos ].Ch = '\0';
836 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
838 } while(Term->WritePos & 7);
842 // Backspace is invalid at Offset 0
843 if(Term->WritePos == 0) break;
847 if(Term->Text[ Term->WritePos ].Ch != '\0') {
848 Term->Text[ Term->WritePos ].Ch = 0;
849 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
853 i = 7; // Limit it to 8
855 Term->Text[ Term->WritePos ].Ch = 0;
856 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
858 } while(Term->WritePos && i-- && Term->Text[ Term->WritePos ].Ch == '\0');
859 if(Term->Text[ Term->WritePos ].Ch != '\0')
864 Term->Text[ Term->WritePos ].Ch = Ch;
865 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
872 if(Term->WritePos >= Term->Width*Term->Height*VT_SCROLLBACK)
875 Term->WritePos -= Term->Width;
877 // Update view position
878 base = Term->Width*Term->Height*(VT_SCROLLBACK-1);
879 if(Term->ViewPos < base) Term->ViewPos += Term->Width;
880 if(Term->ViewPos > base) Term->ViewPos = base;
882 // Scroll terminal cache
883 base = Term->Width*(Term->Height*VT_SCROLLBACK-1);
888 &Term->Text[Term->Width],
889 Term->Width*(Term->Height-1)*VT_SCROLLBACK*sizeof(tVT_Char)
893 for( i = 0; i < Term->Width; i ++ )
895 Term->Text[ base + i ].Ch = 0;
896 Term->Text[ base + i ].Colour = Term->CurColour;
899 VT_int_UpdateScreen( Term, 1 );
901 else if(Term->WritePos > Term->Width*Term->Height+Term->ViewPos)
903 Term->ViewPos += Term->Width;
904 VT_int_UpdateScreen( Term, 1 );
907 VT_int_UpdateScreen( Term, 0 );
913 * \fn void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
914 * \brief Updates the video framebuffer
916 void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
918 // Only update if this is the current terminal
919 if( Term != &gVT_Terminals[giVT_CurrentTerminal] ) return;
921 if( Term->Mode == TERM_MODE_TEXT )
927 giVT_OutputDevHandle,
929 Term->Width*Term->Height*sizeof(tVT_Char),
930 &Term->Text[Term->ViewPos]
933 int pos = Term->WritePos - Term->WritePos % Term->Width;
935 giVT_OutputDevHandle,
936 (pos - Term->ViewPos)*sizeof(tVT_Char),
937 Term->Width*sizeof(tVT_Char),
944 //TODO: Do VT Rendered Text
947 VT_RenderText(0, Term->Width*Term->Height, &Term->Text[Term->ViewPos]);
950 int pos = Term->WritePos - Term->WritePos % Term->Width;
963 giVT_OutputDevHandle,
965 Term->Width*Term->Height*sizeof(Uint32),
972 * \fn void VT_int_ChangeMode(tVTerm *Term, int NewMode)
973 * \brief Change the mode of a VTerm
975 void VT_int_ChangeMode(tVTerm *Term, int NewMode)
981 Term->Text = calloc( Term->Width*Term->Height*VT_SCROLLBACK, sizeof(tVT_Char) );
985 Term->Buffer = calloc( Term->Width*Term->Height, sizeof(Uint32) );
987 //case TERM_MODE_OPENGL:
991 Term->Mode = NewMode;
997 #define MONOSPACE_FONT 10816
999 #if MONOSPACE_FONT == 10808 // 8x8
1000 # include "vterm_font_8x8.h"
1001 #elif MONOSPACE_FONT == 10816 // 8x16
1002 # include "vterm_font_8x16.h"
1005 // === PROTOTYPES ===
1006 Uint8 *VT_Font_GetChar(Uint32 Codepoint);
1009 int giVT_CharWidth = FONT_WIDTH+1;
1010 int giVT_CharHeight = FONT_HEIGHT;
1014 * \fn void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
1015 * \brief Render a font character
1017 void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
1020 Uint32 *buf = Buffer;
1023 font = VT_Font_GetChar(Codepoint);
1025 for(y = 0; y < FONT_HEIGHT; y ++)
1027 for(x = 0; x < FONT_WIDTH; x ++)
1029 if(*font & (1 << (FONT_WIDTH-x-1)))
1040 * \fn Uint32 VT_Colour12to24(Uint16 Col12)
1043 Uint32 VT_Colour12to24(Uint16 Col12)
1048 ret = (tmp << 0) | (tmp << 4);
1049 tmp = (Col12 & 0xF0) >> 4;
1050 ret |= (tmp << 8) | (tmp << 12);
1051 tmp = (Col12 & 0xF00) >> 8;
1052 ret |= (tmp << 16) | (tmp << 20);
1057 * \fn Uint8 *VT_Font_GetChar(Uint32 Codepoint)
1058 * \brief Gets an index into the font array given a Unicode Codepoint
1059 * \note See http://en.wikipedia.org/wiki/CP437
1061 Uint8 *VT_Font_GetChar(Uint32 Codepoint)
1065 return &VTermFont[Codepoint*FONT_HEIGHT];
1068 case 0xC7: index = 128; break; // Ç
1069 case 0xFC: index = 129; break; // ü
1070 case 0xE9: index = 130; break; // é
1071 case 0xE2: index = 131; break; // â
1072 case 0xE4: index = 132; break; // ä
1073 case 0xE0: index = 133; break; // à
1074 case 0xE5: index = 134; break; // å
1075 case 0xE7: index = 135; break; // ç
1076 case 0xEA: index = 136; break; // ê
1077 case 0xEB: index = 137; break; // ë
1078 case 0xE8: index = 138; break; // è
1079 case 0xEF: index = 139; break; // ï
1080 case 0xEE: index = 140; break; // î
1081 case 0xEC: index = 141; break; // ì
1082 case 0xC4: index = 142; break; // Ä
1083 case 0xC5: index = 143; break; // Å
1086 return &VTermFont[index*FONT_HEIGHT];
1089 EXPORTAS(&giVT_CharWidth, giVT_CharWidth);
1090 EXPORTAS(&giVT_CharHeight, giVT_CharHeight);
1091 EXPORT(VT_Font_Render);
1092 EXPORT(VT_Colour12to24);