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_INPUT "PS2Keyboard"
25 #define DEFAULT_WIDTH 80
26 #define DEFAULT_HEIGHT 25
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 RealWidth; //!< Real Width
45 short RealHeight; //!< Real Height
47 int ViewPos; //!< View Buffer Offset (Text Only)
48 int WritePos; //!< Write Buffer Offset (Text Only)
49 Uint32 CurColour; //!< Current Text Colour
50 char Name[2]; //!< Name of the terminal
52 int InputRead; //!< Input buffer read position
53 int InputWrite; //!< Input buffer write position
54 char InputBuffer[MAX_INPUT_CHARS8];
63 extern void Debug_SetKTerminal(char *File);
66 int VT_Install(char **Arguments);
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_SetTerminal(int ID);
74 void VT_KBCallBack(Uint32 Codepoint);
75 void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count);
76 int VT_int_ParseEscape(tVTerm *Term, char *Buffer);
77 void VT_int_PutChar(tVTerm *Term, Uint32 Ch);
78 void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll );
79 void VT_int_ChangeMode(tVTerm *Term, int NewMode);
82 const Uint16 caVT100Colours[] = {
83 VT_COL_BLACK, 0x700, 0x070, 0x770, 0x007, 0x707, 0x077, 0xAAA,
84 VT_COL_GREY, 0xF00, 0x0F0, 0xFF0, 0x00F, 0xF0F, 0x0FF, VT_COL_WHITE
88 MODULE_DEFINE(0, VERSION, VTerm, VT_Install, NULL, DEFAULT_OUTPUT, DEFAULT_INPUT, NULL);
89 tDevFS_Driver gVT_DrvInfo = {
92 .Flags = VFS_FFLAG_DIRECTORY,
96 .ReadDir = VT_ReadDir,
97 .FindDir = VT_FindDir,
98 .IOCtl = VT_Root_IOCtl
102 tVTerm gVT_Terminals[NUM_VTS];
103 int giVT_CurrentTerminal = 0;
104 // --- Driver Handles ---
105 char *gsVT_OutputDevice = NULL;
106 char *gsVT_InputDevice = NULL;
107 int giVT_OutputDevHandle = -2;
108 int giVT_InputDevHandle = -2;
109 // --- Key States --- (Used for VT Switching/Magic Combos)
110 int gbVT_CtrlDown = 0;
111 int gbVT_AltDown = 0;
112 int gbVT_SysrqDown = 0;
116 * \fn int VT_Install(char **Arguments)
117 * \brief Installs the Virtual Terminal Driver
119 int VT_Install(char **Arguments)
121 char **args = Arguments;
128 for( ; (arg = *args); args++ )
130 if(arg[0] != '-') continue;
136 if(args[1] == NULL) break;
137 if(gsVT_OutputDevice) free(gsVT_OutputDevice);
138 gsVT_OutputDevice = malloc(strlen(args[1])+1);
139 strcpy(gsVT_OutputDevice, args[1]);
145 if(args[1] == NULL) break;
146 if(gsVT_InputDevice) free(gsVT_InputDevice);
147 gsVT_InputDevice = malloc(strlen(args[1])+1);
148 strcpy(gsVT_InputDevice, args[1]);
157 if(!gsVT_OutputDevice) gsVT_OutputDevice = "/Devices/"DEFAULT_OUTPUT;
158 if(!gsVT_InputDevice) gsVT_InputDevice = "/Devices/"DEFAULT_INPUT;
160 LOG("Using '%s' as output", gsVT_OutputDevice);
161 LOG("Using '%s' as input", gsVT_InputDevice);
164 for( i = 0; i < NUM_VTS; i++ )
166 gVT_Terminals[i].Mode = TERM_MODE_TEXT;
167 gVT_Terminals[i].Flags = 0;
168 gVT_Terminals[i].Width = DEFAULT_WIDTH;
169 gVT_Terminals[i].Height = DEFAULT_HEIGHT;
170 gVT_Terminals[i].CurColour = DEFAULT_COLOUR;
171 gVT_Terminals[i].WritePos = 0;
172 gVT_Terminals[i].ViewPos = 0;
174 gVT_Terminals[i].Buffer = calloc( DEFAULT_WIDTH*DEFAULT_HEIGHT*VT_SCROLLBACK, sizeof(tVT_Char) );
176 gVT_Terminals[i].Name[0] = '0'+i;
177 gVT_Terminals[i].Name[1] = '\0';
178 gVT_Terminals[i].Node.Inode = i;
179 gVT_Terminals[i].Node.ImplPtr = &gVT_Terminals[i];
180 gVT_Terminals[i].Node.NumACLs = 0; // Only root can open virtual terminals
182 gVT_Terminals[i].Node.Read = VT_Read;
183 gVT_Terminals[i].Node.Write = VT_Write;
184 gVT_Terminals[i].Node.IOCtl = VT_Terminal_IOCtl;
188 DevFS_AddDevice( &gVT_DrvInfo );
190 // Set kernel output to VT0
191 Debug_SetKTerminal("/Devices/VTerm/0");
193 return MODULE_INIT_SUCCESS;
197 * \fn void VT_InitOutput()
198 * \brief Initialise Video Output
202 giVT_OutputDevHandle = VFS_Open(gsVT_OutputDevice, VFS_OPENFLAG_WRITE);
207 * \fn void VT_InitInput()
208 * \brief Initialises the input
212 giVT_InputDevHandle = VFS_Open(gsVT_InputDevice, VFS_OPENFLAG_READ);
213 if(giVT_InputDevHandle == -1) return ;
214 VFS_IOCtl(giVT_InputDevHandle, KB_IOCTL_SETCALLBACK, VT_KBCallBack);
218 * \fn char *VT_ReadDir(tVFS_Node *Node, int Pos)
219 * \brief Read from the VTerm Directory
221 char *VT_ReadDir(tVFS_Node *Node, int Pos)
223 if(Pos < 0) return NULL;
224 if(Pos >= NUM_VTS) return NULL;
225 return strdup( gVT_Terminals[Pos].Name );
229 * \fn tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name)
230 * \brief Find an item in the VTerm directory
232 tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name)
236 //ENTER("pNode sName", Node, Name);
238 // Open the input and output files if needed
239 if(giVT_OutputDevHandle == -2) VT_InitOutput();
240 if(giVT_InputDevHandle == -2) VT_InitInput();
243 if(Name[0] < '0' || Name[0] > '9' || Name[1] != '\0') {
254 //LEAVE('p', &gVT_Terminals[num].Node);
255 return &gVT_Terminals[num].Node;
259 * \fn int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
260 * \brief Control the VTerm Driver
262 int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
267 case DRV_IOCTL_TYPE: return DRV_TYPE_MISC;
268 case DRV_IOCTL_IDENT: memcpy(Data, "VT\0\0", 4); return 0;
269 case DRV_IOCTL_VERSION: return VERSION;
270 case DRV_IOCTL_LOOKUP: return 0;
272 case 4: // Get Video Driver
273 if(Data) strcpy(Data, gsVT_OutputDevice);
274 return strlen(gsVT_OutputDevice);
276 case 5: // Set Video Driver
277 if(!Data) return -EINVAL;
278 if(Threads_GetUID() != 0) return -EACCES;
282 free(gsVT_OutputDevice);
284 gsVT_OutputDevice = malloc(len+1);
285 strcpy(gsVT_OutputDevice, Data);
287 VFS_Close(giVT_OutputDevHandle);
288 giVT_OutputDevHandle = -1;
297 * \fn Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
298 * \brief Read from a virtual terminal
300 Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
303 tVTerm *term = &gVT_Terminals[ Node->Inode ];
305 // Check current mode
311 while(term->InputRead == term->InputWrite) Threads_Yield();
313 ((char*)Buffer)[pos] = term->InputBuffer[term->InputRead];
316 term->InputRead %= MAX_INPUT_CHARS8;
324 while(term->InputRead == term->InputWrite) Threads_Yield();
325 ((Uint32*)Buffer)[pos] = ((Uint32*)term->InputBuffer)[term->InputRead];
328 term->InputRead %= MAX_INPUT_CHARS32;
336 * \fn Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
337 * \brief Write to a virtual terminal
339 Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
341 tVTerm *term = &gVT_Terminals[ Node->Inode ];
343 //ENTER("pNode XOffset XLength pBuffer", Node, Offset, Length, Buffer);
349 VT_int_PutString(term, Buffer, Length);
352 if( term->RealWidth > term->Width || term->RealHeight > term->Height )
356 x = Offset/4; y = x / term->Width; x %= term->Width;
357 w = Length/4+x; h = w / term->Width; w %= term->Width;
360 VFS_WriteAt( giVT_OutputDevHandle,
361 (x+y*term->RealWidth)*4,
365 Buffer = (void*)( (Uint)Buffer + term->Width*term->Height*4 );
371 return VFS_WriteAt( giVT_OutputDevHandle, Offset, Length, Buffer );
380 * \fn int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
381 * \brief Call an IO Control on a virtual terminal
383 int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
386 tVTerm *term = Node->ImplPtr;
387 ENTER("pNode iId pData", Node, Id, Data);
389 if(Id >= DRV_IOCTL_LOOKUP) {
390 if( Threads_GetUID() != 0 ) return -1;
396 LEAVE('i', DRV_TYPE_TERMINAL);
397 return DRV_TYPE_TERMINAL;
398 case DRV_IOCTL_IDENT:
399 memcpy(Data, "VT\0\0", 4);
402 case DRV_IOCTL_VERSION:
405 case DRV_IOCTL_LOOKUP:
409 // Get/Set the mode (and apply any changes)
410 case TERM_IOCTL_MODETYPE:
413 if(term->Mode != *iData)
414 VT_int_ChangeMode(term, *iData);
416 // Update the screen dimensions
417 if(giVT_CurrentTerminal == Node->Inode)
418 VT_SetTerminal( giVT_CurrentTerminal );
420 LEAVE('i', term->Mode);
423 // Get/set the terminal width
424 case TERM_IOCTL_WIDTH:
425 if(Data != NULL) term->Width = *iData;
426 Log("VT_Terminal_IOCtl - RETURN term->Width = %i", term->Width);
427 LEAVE('i', term->Width);
430 // Get/set the terminal height
431 case TERM_IOCTL_HEIGHT:
432 if(Data != NULL) term->Height = *iData;
433 Log("VT_Terminal_IOCtl - RETURN term->Height = %i", term->Height);
434 LEAVE('i', term->Height);
437 case TERM_IOCTL_FORCESHOW:
438 VT_SetTerminal( Node->Inode );
447 * \fn void VT_SetTerminal(int ID)
448 * \brief Set the current terminal
450 void VT_SetTerminal(int ID)
452 tVideo_IOCtl_Mode mode = {0};
455 // Create the video mode
456 mode.width = gVT_Terminals[ ID ].Width;
457 mode.height = gVT_Terminals[ ID ].Height;
459 if(gVT_Terminals[ ID ].Mode == TERM_MODE_TEXT) {
461 mode.flags = VIDEO_FLAG_TEXT;
463 // - Framebuffer or 3D
470 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_FINDMODE, &mode );
472 gVT_Terminals[ ID ].RealWidth = mode.width;
473 gVT_Terminals[ ID ].RealHeight = mode.height;
474 VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_GETSETMODE, &modeNum );
476 // Update current terminal ID
477 Log("Changed terminal from %i to %i", giVT_CurrentTerminal, ID);
478 giVT_CurrentTerminal = ID;
481 VT_int_UpdateScreen( &gVT_Terminals[ ID ], 1 );
485 * \fn void VT_KBCallBack(Uint32 Codepoint)
486 * \brief Called on keyboard interrupt
488 void VT_KBCallBack(Uint32 Codepoint)
490 tVTerm *term = &gVT_Terminals[giVT_CurrentTerminal];
492 // How the hell did we get a Codepoint of zero?
493 if(Codepoint == 0) return;
496 if( Codepoint & 0x80000000 )
498 Codepoint &= 0x7FFFFFFF;
502 case KEY_RSHIFT: gbVT_CtrlDown = 0; break;
503 case KEY_LSHIFT: gbVT_AltDown = 0; break;
521 case KEY_RSHIFT: gbVT_CtrlDown = 1; break;
522 case KEY_LSHIFT: gbVT_AltDown = 1; break;
536 if(!gbVT_AltDown || !gbVT_CtrlDown)
541 case KEY_F1: VT_SetTerminal(0); return;
542 case KEY_F2: VT_SetTerminal(1); return;
543 case KEY_F3: VT_SetTerminal(2); return;
544 case KEY_F4: VT_SetTerminal(3); return;
545 case KEY_F5: VT_SetTerminal(4); return;
546 case KEY_F6: VT_SetTerminal(5); return;
547 case KEY_F7: VT_SetTerminal(6); return;
548 case KEY_F8: VT_SetTerminal(7); return;
549 case KEY_F9: VT_SetTerminal(8); return;
550 case KEY_F10: VT_SetTerminal(9); return;
551 case KEY_F11: VT_SetTerminal(10); return;
552 case KEY_F12: VT_SetTerminal(11); return;
561 if(term->Mode == TERM_MODE_TEXT)
566 // Ignore Modifer Keys
567 if(Codepoint > KEY_MODIFIERS) return;
569 // Get UTF-8/ANSI Encoding
573 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'D';
577 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'C';
581 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'A';
585 buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'B';
590 buf[0] = '\x1B'; buf[1] = '['; buf[2] = '5'; // Some overline also
591 //len = 4; // Commented out until I'm sure
597 // Attempt to encode in UTF-8
599 len = WriteUTF8( buf, Codepoint );
601 Warning("Codepoint (%x) is unrepresentable in UTF-8", Codepoint);
607 // Unprintable / Don't Pass
612 if( MAX_INPUT_CHARS8 - term->InputWrite >= len )
613 memcpy( &term->InputBuffer[term->InputWrite], buf, len );
615 memcpy( &term->InputBuffer[term->InputWrite], buf, MAX_INPUT_CHARS8 - term->InputWrite );
616 memcpy( &term->InputBuffer[0], buf, len - (MAX_INPUT_CHARS8 - term->InputWrite) );
618 // Roll the buffer over
619 term->InputWrite += len;
620 term->InputWrite %= MAX_INPUT_CHARS8;
621 if( (term->InputWrite - term->InputRead + MAX_INPUT_CHARS8)%MAX_INPUT_CHARS8 < len ) {
622 term->InputRead = term->InputWrite + 1;
623 term->InputRead %= MAX_INPUT_CHARS8;
629 // Encode the raw UTF-32 Key
630 ((Uint32*)term->InputBuffer)[ term->InputWrite ] = Codepoint;
632 term->InputWrite %= MAX_INPUT_CHARS32;
633 if(term->InputRead == term->InputWrite) {
635 term->InputRead %= MAX_INPUT_CHARS32;
641 * \fn void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
642 * \brief Print a string to the Virtual Terminal
644 void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
648 for( i = 0; i < Count; i++ )
650 if( Buffer[i] == 0x1B ) // Escape Sequence
653 i += VT_int_ParseEscape(Term, (char*)&Buffer[i]);
657 if( Buffer[i] < 128 ) // Plain ASCII
658 VT_int_PutChar(Term, Buffer[i]);
660 i += ReadUTF8(&Buffer[i], &val);
661 VT_int_PutChar(Term, val);
666 if( !(Term->Flags & VT_FLAG_HIDECSR) )
668 tVideo_IOCtl_Pos pos;
669 pos.x = Term->WritePos % Term->Width;
670 pos.y = Term->WritePos / Term->Width;
671 VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &pos);
676 * \fn void VT_int_ClearLine(tVTerm *Term, int Num)
677 * \brief Clears a line in a virtual terminal
679 void VT_int_ClearLine(tVTerm *Term, int Num)
682 //ENTER("pTerm iNum", Term, Num);
683 for( i = Term->Width; i--; )
685 Term->Text[ Num*Term->Width + i ].Ch = 0;
686 Term->Text[ Num*Term->Width + i ].Colour = Term->CurColour;
692 * \fn int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
693 * \brief Parses a VT100 Escape code
695 int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
700 int args[4] = {0,0,0,0};
708 while('0' <= c && c <= '9') {
713 if( j != 1 ) argc ++;
716 // Get string (what does this do?)
724 if( ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
730 if(argc == 1) tmp = args[0];
733 if( Term->WritePos-(tmp-1) % Term->Width == 0 )
734 Term->WritePos -= Term->WritePos % Term->Width;
736 Term->WritePos -= tmp;
741 if(argc == 1) tmp = args[0];
743 if( (Term->WritePos + tmp) % Term->Width == 0 ) {
744 Term->WritePos -= Term->WritePos % Term->Width;
745 Term->WritePos += Term->Width - 1;
747 Term->WritePos += tmp;
757 int i = Term->Height * VT_SCROLLBACK;
758 while( i-- ) VT_int_ClearLine(Term, i);
761 VT_int_UpdateScreen(Term, 1);
771 if( 0 <= args[argc] && args[argc] <= 8)
775 case 0: Term->CurColour = DEFAULT_COLOUR; break; // Reset
776 case 1: Term->CurColour |= 0x80000000; break; // Bright
777 case 2: Term->CurColour &= ~0x80000000; break; // Dim
781 else if(30 <= args[argc] && args[argc] <= 37) {
782 Term->CurColour &= 0xF000FFFF;
783 Term->CurColour |= (Uint32)caVT100Colours[ args[argc]-30+(Term->CurColour>>28) ] << 16;
786 else if(40 <= args[argc] && args[argc] <= 47) {
787 Term->CurColour &= 0xFFFF8000;
788 Term->CurColour |= caVT100Colours[ args[argc]-40+((Term->CurColour>>12)&15) ];
804 * \fn void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
805 * \brief Write a single character to a VTerm
807 void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
810 //ENTER("pTerm xCh", Term, Ch);
811 //LOG("Term = {WritePos:%i, ViewPos:%i}", Term->WritePos, Term->ViewPos);
815 case '\0': return; // Ignore NULL byte
817 Term->WritePos += Term->Width;
819 Term->WritePos -= Term->WritePos % Term->Width;
824 Term->Text[ Term->WritePos ].Ch = '\0';
825 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
827 } while(Term->WritePos & 7);
831 // Backspace is invalid at Offset 0
832 if(Term->WritePos == 0) break;
836 if(Term->Text[ Term->WritePos ].Ch != '\0') {
837 Term->Text[ Term->WritePos ].Ch = 0;
838 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
842 i = 7; // Limit it to 8
844 Term->Text[ Term->WritePos ].Ch = 0;
845 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
847 } while(Term->WritePos && i-- && Term->Text[ Term->WritePos ].Ch == '\0');
848 if(Term->Text[ Term->WritePos ].Ch != '\0')
853 Term->Text[ Term->WritePos ].Ch = Ch;
854 Term->Text[ Term->WritePos ].Colour = Term->CurColour;
861 if(Term->WritePos >= Term->Width*Term->Height*VT_SCROLLBACK)
864 Term->WritePos -= Term->Width;
866 // Update view position
867 base = Term->Width*Term->Height*(VT_SCROLLBACK-1);
868 if(Term->ViewPos < base) Term->ViewPos += Term->Width;
869 if(Term->ViewPos > base) Term->ViewPos = base;
871 // Scroll terminal cache
872 base = Term->Width*(Term->Height*VT_SCROLLBACK-1);
877 &Term->Text[Term->Width],
878 Term->Width*(Term->Height-1)*VT_SCROLLBACK*sizeof(tVT_Char)
882 for( i = 0; i < Term->Width; i ++ )
884 Term->Text[ base + i ].Ch = 0;
885 Term->Text[ base + i ].Colour = Term->CurColour;
888 VT_int_UpdateScreen( Term, 1 );
890 else if(Term->WritePos > Term->Width*Term->Height+Term->ViewPos)
892 Term->ViewPos += Term->Width;
893 VT_int_UpdateScreen( Term, 1 );
896 VT_int_UpdateScreen( Term, 0 );
902 * \fn void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
903 * \brief Updates the video framebuffer
905 void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
907 // Only update if this is the current terminal
908 if( Term != &gVT_Terminals[giVT_CurrentTerminal] ) return;
910 if( Term->Mode == TERM_MODE_TEXT )
914 giVT_OutputDevHandle,
916 Term->Width*Term->Height*sizeof(tVT_Char),
917 &Term->Text[Term->ViewPos]
920 int pos = Term->WritePos - Term->WritePos % Term->Width;
922 giVT_OutputDevHandle,
923 (pos - Term->ViewPos)*sizeof(tVT_Char),
924 Term->Width*sizeof(tVT_Char),
932 giVT_OutputDevHandle,
934 Term->Width*Term->Height*sizeof(Uint32),
941 * \fn void VT_int_ChangeMode(tVTerm *Term, int NewMode)
942 * \brief Change the mode of a VTerm
944 void VT_int_ChangeMode(tVTerm *Term, int NewMode)
950 Term->Text = calloc( Term->Width*Term->Height*VT_SCROLLBACK, sizeof(tVT_Char) );
954 Term->Buffer = calloc( Term->Width*Term->Height, sizeof(Uint32) );
956 //case TERM_MODE_OPENGL:
960 Term->Mode = NewMode;
966 #define MONOSPACE_FONT 10816
968 #if MONOSPACE_FONT == 10808 // 8x8
969 # include "vterm_font_8x8.h"
970 #elif MONOSPACE_FONT == 10816 // 8x16
971 # include "vterm_font_8x16.h"
974 // === PROTOTYPES ===
975 Uint8 *VT_Font_GetChar(Uint32 Codepoint);
978 int giVT_CharWidth = FONT_WIDTH+1;
979 int giVT_CharHeight = FONT_HEIGHT;
983 * \fn void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
984 * \brief Render a font character
986 void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
989 Uint32 *buf = Buffer;
992 font = VT_Font_GetChar(Codepoint);
994 for(y = 0; y < FONT_HEIGHT; y ++)
996 for(x = 0; x < FONT_WIDTH; x ++)
998 if(*font & (1 << (FONT_WIDTH-x-1)))
1009 * \fn Uint32 VT_Colour12to24(Uint16 Col12)
1012 Uint32 VT_Colour12to24(Uint16 Col12)
1017 ret = (tmp << 0) | (tmp << 4);
1018 tmp = (Col12 & 0xF0) >> 4;
1019 ret |= (tmp << 8) | (tmp << 12);
1020 tmp = (Col12 & 0xF00) >> 8;
1021 ret |= (tmp << 16) | (tmp << 20);
1026 * \fn Uint8 *VT_Font_GetChar(Uint32 Codepoint)
1027 * \brief Gets an index into the font array given a Unicode Codepoint
1028 * \note See http://en.wikipedia.org/wiki/CP437
1030 Uint8 *VT_Font_GetChar(Uint32 Codepoint)
1034 return &VTermFont[Codepoint*FONT_HEIGHT];
1037 case 0xC7: index = 128; break; // Ç
1038 case 0xFC: index = 129; break; // ü
1039 case 0xE9: index = 130; break; // é
1040 case 0xE2: index = 131; break; // â
1041 case 0xE4: index = 132; break; // ä
1042 case 0xE0: index = 133; break; // à
1043 case 0xE5: index = 134; break; // å
1044 case 0xE7: index = 135; break; // ç
1045 case 0xEA: index = 136; break; // ê
1046 case 0xEB: index = 137; break; // ë
1047 case 0xE8: index = 138; break; // è
1048 case 0xEF: index = 139; break; // ï
1049 case 0xEE: index = 140; break; // î
1050 case 0xEC: index = 141; break; // ì
1051 case 0xC4: index = 142; break; // Ä
1052 case 0xC5: index = 143; break; // Å
1055 return &VTermFont[index*FONT_HEIGHT];
1058 EXPORTAS(&giVT_CharWidth, giVT_CharWidth);
1059 EXPORTAS(&giVT_CharHeight, giVT_CharHeight);
1060 EXPORT(VT_Font_Render);
1061 EXPORT(VT_Colour12to24);