+++ /dev/null
-/*
- * Acess2 Virtual Terminal Driver
- */
-#include <common.h>
-#include <fs_devfs.h>
-#include <modules.h>
-#include <tpl_drv_video.h>
-#include <tpl_drv_keyboard.h>
-#include <tpl_drv_terminal.h>
-#include <errno.h>
-
-// === CONSTANTS ===
-#define VERSION ((0<<8)|(50))
-
-#define NUM_VTS 7
-#define MAX_INPUT_CHARS32 64
-#define MAX_INPUT_CHARS8 (MAX_INPUT_CHARS32*4)
-#define VT_SCROLLBACK 1 // 2 Screens of text
-//#define DEFAULT_OUTPUT "VGA"
-#define DEFAULT_OUTPUT "BochsGA"
-#define DEFAULT_INPUT "PS2Keyboard"
-#define DEFAULT_WIDTH 80
-#define DEFAULT_HEIGHT 25
-#define DEFAULT_COLOUR (VT_COL_BLACK|(0xAAA<<16))
-
-#define VT_FLAG_HIDECSR 0x01
-#define VT_FLAG_HASFB 0x10 //!< Set if the VTerm has requested the Framebuffer
-
-enum eVT_InModes {
- VT_INMODE_TEXT8, // UTF-8 Text Mode (VT100 Emulation)
- VT_INMODE_TEXT32, // UTF-32 Text Mode (Acess Native)
- NUM_VT_INMODES
-};
-
-// === TYPES ===
-typedef struct {
- int Mode; //!< Current Mode (see ::eTplTerminal_Modes)
- int Flags; //!< Flags (see VT_FLAG_*)
- short Width; //!< Virtual Width
- short Height; //!< Virtual Height
- short RealWidth; //!< Real Width
- short RealHeight; //!< Real Height
-
- int ViewPos; //!< View Buffer Offset (Text Only)
- int WritePos; //!< Write Buffer Offset (Text Only)
- Uint32 CurColour; //!< Current Text Colour
- char Name[2]; //!< Name of the terminal
-
- int InputRead; //!< Input buffer read position
- int InputWrite; //!< Input buffer write position
- char InputBuffer[MAX_INPUT_CHARS8];
- union {
- tVT_Char *Text;
- Uint32 *Buffer;
- };
- tVFS_Node Node;
-} tVTerm;
-
-// === IMPORTS ===
-extern void Debug_SetKTerminal(char *File);
-
-// === PROTOTYPES ===
- int VT_Install(char **Arguments);
-char *VT_ReadDir(tVFS_Node *Node, int Pos);
-tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name);
- int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data);
-Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
-Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
- int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data);
-void VT_SetTerminal(int ID);
-void VT_KBCallBack(Uint32 Codepoint);
-void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count);
- int VT_int_ParseEscape(tVTerm *Term, char *Buffer);
-void VT_int_PutChar(tVTerm *Term, Uint32 Ch);
-void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll );
-void VT_int_ChangeMode(tVTerm *Term, int NewMode);
-
-// === CONSTANTS ===
-const Uint16 caVT100Colours[] = {
- VT_COL_BLACK, 0x700, 0x070, 0x770, 0x007, 0x707, 0x077, 0xAAA,
- VT_COL_GREY, 0xF00, 0x0F0, 0xFF0, 0x00F, 0xF0F, 0x0FF, VT_COL_WHITE
- };
-
-// === GLOBALS ===
-MODULE_DEFINE(0, VERSION, VTerm, VT_Install, NULL, DEFAULT_OUTPUT, DEFAULT_INPUT, NULL);
-tDevFS_Driver gVT_DrvInfo = {
- NULL, "VTerm",
- {
- .Flags = VFS_FFLAG_DIRECTORY,
- .Size = NUM_VTS,
- .Inode = -1,
- .NumACLs = 0,
- .ReadDir = VT_ReadDir,
- .FindDir = VT_FindDir,
- .IOCtl = VT_Root_IOCtl
- }
-};
-// --- Terminals ---
-tVTerm gVT_Terminals[NUM_VTS];
- int giVT_CurrentTerminal = 0;
-// --- Driver Handles ---
-char *gsVT_OutputDevice = NULL;
-char *gsVT_InputDevice = NULL;
- int giVT_OutputDevHandle = -2;
- int giVT_InputDevHandle = -2;
-// --- Key States --- (Used for VT Switching/Magic Combos)
- int gbVT_CtrlDown = 0;
- int gbVT_AltDown = 0;
- int gbVT_SysrqDown = 0;
-
-// === CODE ===
-/**
- * \fn int VT_Install(char **Arguments)
- * \brief Installs the Virtual Terminal Driver
- */
-int VT_Install(char **Arguments)
-{
- char **args = Arguments;
- char *arg;
- int i;
-
- // Scan Arguments
- if(Arguments)
- {
- for( ; (arg = *args); args++ )
- {
- if(arg[0] != '-') continue;
-
- switch(arg[1])
- {
- // Set output device
- case 'o':
- if(args[1] == NULL) break;
- if(gsVT_OutputDevice) free(gsVT_OutputDevice);
- gsVT_OutputDevice = malloc(strlen(args[1])+1);
- strcpy(gsVT_OutputDevice, args[1]);
- args ++;
- break;
-
- // Set input device
- case 'i':
- if(args[1] == NULL) break;
- if(gsVT_InputDevice) free(gsVT_InputDevice);
- gsVT_InputDevice = malloc(strlen(args[1])+1);
- strcpy(gsVT_InputDevice, args[1]);
- args ++;
- break;
-
- }
- }
- }
-
- // Apply Defaults
- if(!gsVT_OutputDevice) gsVT_OutputDevice = "/Devices/"DEFAULT_OUTPUT;
- if(!gsVT_InputDevice) gsVT_InputDevice = "/Devices/"DEFAULT_INPUT;
-
- LOG("Using '%s' as output", gsVT_OutputDevice);
- LOG("Using '%s' as input", gsVT_InputDevice);
-
- // Create Nodes
- for( i = 0; i < NUM_VTS; i++ )
- {
- gVT_Terminals[i].Mode = TERM_MODE_TEXT;
- gVT_Terminals[i].Flags = 0;
- gVT_Terminals[i].Width = DEFAULT_WIDTH;
- gVT_Terminals[i].Height = DEFAULT_HEIGHT;
- gVT_Terminals[i].CurColour = DEFAULT_COLOUR;
- gVT_Terminals[i].WritePos = 0;
- gVT_Terminals[i].ViewPos = 0;
-
- gVT_Terminals[i].Buffer = calloc( DEFAULT_WIDTH*DEFAULT_HEIGHT*VT_SCROLLBACK, sizeof(tVT_Char) );
-
- gVT_Terminals[i].Name[0] = '0'+i;
- gVT_Terminals[i].Name[1] = '\0';
- gVT_Terminals[i].Node.Inode = i;
- gVT_Terminals[i].Node.ImplPtr = &gVT_Terminals[i];
- gVT_Terminals[i].Node.NumACLs = 0; // Only root can open virtual terminals
-
- gVT_Terminals[i].Node.Read = VT_Read;
- gVT_Terminals[i].Node.Write = VT_Write;
- gVT_Terminals[i].Node.IOCtl = VT_Terminal_IOCtl;
- }
-
- // Add to DevFS
- DevFS_AddDevice( &gVT_DrvInfo );
-
- // Set kernel output to VT0
- Debug_SetKTerminal("/Devices/VTerm/0");
-
- return 0;
-}
-
-/**
- * \fn void VT_InitOutput()
- * \brief Initialise Video Output
- */
-void VT_InitOutput()
-{
- giVT_OutputDevHandle = VFS_Open(gsVT_OutputDevice, VFS_OPENFLAG_WRITE);
- Log("giVT_OutputDevHandle = %x\n", giVT_OutputDevHandle);
- VT_SetTerminal( 0 );
-}
-
-/**
- * \fn void VT_InitInput()
- * \brief Initialises the input
- */
-void VT_InitInput()
-{
- giVT_InputDevHandle = VFS_Open(gsVT_InputDevice, VFS_OPENFLAG_READ);
- LOG("giVT_InputDevHandle = %x\n", giVT_InputDevHandle);
- if(giVT_InputDevHandle == -1) return ;
- VFS_IOCtl(giVT_InputDevHandle, KB_IOCTL_SETCALLBACK, VT_KBCallBack);
-}
-
-/**
- * \fn char *VT_ReadDir(tVFS_Node *Node, int Pos)
- * \brief Read from the VTerm Directory
- */
-char *VT_ReadDir(tVFS_Node *Node, int Pos)
-{
- if(Pos < 0) return NULL;
- if(Pos >= NUM_VTS) return NULL;
- return strdup( gVT_Terminals[Pos].Name );
-}
-
-/**
- * \fn tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name)
- * \brief Find an item in the VTerm directory
- */
-tVFS_Node *VT_FindDir(tVFS_Node *Node, char *Name)
-{
- int num;
-
- //ENTER("pNode sName", Node, Name);
-
- // Open the input and output files if needed
- if(giVT_OutputDevHandle == -2) VT_InitOutput();
- if(giVT_InputDevHandle == -2) VT_InitInput();
-
- // Sanity check name
- if(Name[0] < '0' || Name[0] > '9' || Name[1] != '\0') {
- LEAVE('n');
- return NULL;
- }
- // Get index
- num = Name[0] - '0';
- if(num >= NUM_VTS) {
- LEAVE('n');
- return NULL;
- }
- // Return node
- //LEAVE('p', &gVT_Terminals[num].Node);
- return &gVT_Terminals[num].Node;
-}
-
-/**
- * \fn int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
- * \brief Control the VTerm Driver
- */
-int VT_Root_IOCtl(tVFS_Node *Node, int Id, void *Data)
-{
- int len;
- switch(Id)
- {
- case DRV_IOCTL_TYPE: return DRV_TYPE_MISC;
- case DRV_IOCTL_IDENT: memcpy(Data, "VT\0\0", 4); return 0;
- case DRV_IOCTL_VERSION: return VERSION;
- case DRV_IOCTL_LOOKUP: return 0;
-
- case 4: // Get Video Driver
- if(Data) strcpy(Data, gsVT_OutputDevice);
- return strlen(gsVT_OutputDevice);
-
- case 5: // Set Video Driver
- if(!Data) return -EINVAL;
- if(Threads_GetUID() != 0) return -EACCES;
-
- len = strlen(Data);
-
- free(gsVT_OutputDevice);
-
- gsVT_OutputDevice = malloc(len+1);
- strcpy(gsVT_OutputDevice, Data);
-
- VFS_Close(giVT_OutputDevHandle);
- giVT_OutputDevHandle = -1;
-
- VT_InitOutput();
- return 1;
- }
- return 0;
-}
-
-/**
- * \fn Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
- * \brief Read from a virtual terminal
- */
-Uint64 VT_Read(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
-{
- int pos = 0;
- tVTerm *term = &gVT_Terminals[ Node->Inode ];
-
- // Check current mode
- switch(term->Mode)
- {
- case TERM_MODE_TEXT:
- while(pos < Length)
- {
- while(term->InputRead == term->InputWrite) Threads_Yield();
-
- ((char*)Buffer)[pos] = term->InputBuffer[term->InputRead];
- pos ++;
- term->InputRead ++;
- term->InputRead %= MAX_INPUT_CHARS8;
- }
- break;
-
- case TERM_MODE_FB:
- case TERM_MODE_OPENGL:
- while(pos < Length)
- {
- while(term->InputRead == term->InputWrite) Threads_Yield();
- ((Uint32*)Buffer)[pos] = ((Uint32*)term->InputBuffer)[term->InputRead];
- pos ++;
- term->InputRead ++;
- term->InputRead %= MAX_INPUT_CHARS32;
- }
- break;
- }
- return 0;
-}
-
-/**
- * \fn Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
- * \brief Write to a virtual terminal
- */
-Uint64 VT_Write(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer)
-{
- tVTerm *term = &gVT_Terminals[ Node->Inode ];
-
- //ENTER("pNode XOffset XLength pBuffer", Node, Offset, Length, Buffer);
-
- // Write
- switch( term->Mode )
- {
- case TERM_MODE_TEXT:
- VT_int_PutString(term, Buffer, Length);
- break;
- }
-
- //LEAVE('i', 0);
- return 0;
-}
-
-/**
- * \fn int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
- * \brief Call an IO Control on a virtual terminal
- */
-int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data)
-{
- int *iData = Data;
- tVTerm *term = Node->ImplPtr;
- switch(Id)
- {
- case DRV_IOCTL_TYPE: return DRV_TYPE_TERMINAL;
- case DRV_IOCTL_IDENT: memcpy(Data, "VT\0\0", 4); return 0;
- case DRV_IOCTL_VERSION: return VERSION;
- case DRV_IOCTL_LOOKUP: return 0;
-
- // Get/Set the mode (and apply any changes)
- case TERM_IOCTL_MODETYPE:
- if(Data == NULL) return term->Mode;
-
- if(term->Mode != *iData) {
- VT_int_ChangeMode(term, *iData);
- }
-
- // Update the screen dimensions
- if(giVT_CurrentTerminal == Node->Inode)
- VT_SetTerminal( giVT_CurrentTerminal );
- break;
-
- // Get/set the terminal width
- case TERM_IOCTL_WIDTH:
- if(Data == NULL) return term->Width;
- term->Width = *iData;
- break;
-
- // Get/set the terminal height
- case TERM_IOCTL_HEIGHT:
- if(Data == NULL) return term->Height;
- term->Height = *iData;
- break;
-
- default:
- return -1;
- }
- return 0;
-}
-
-/**
- * \fn void VT_SetTerminal(int ID)
- * \brief Set the current terminal
- */
-void VT_SetTerminal(int ID)
-{
- tVideo_IOCtl_Mode mode = {0};
- int modeNum;
-
- // Create the video mode
- mode.width = gVT_Terminals[ ID ].Width;
- mode.height = gVT_Terminals[ ID ].Height;
- // - Text Mode
- if(gVT_Terminals[ ID ].Mode == TERM_MODE_TEXT) {
- mode.bpp = 12;
- mode.flags = VIDEO_FLAG_TEXT;
- }
- // - Framebuffer or 3D
- else {
- mode.bpp = 32;
- mode.flags = 0;
- }
-
- // Set video mode
- VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_FINDMODE, &mode );
- modeNum = mode.id;
- gVT_Terminals[ ID ].RealWidth = mode.width;
- gVT_Terminals[ ID ].RealHeight = mode.height;
- VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_SETMODE, &modeNum );
-
- // Update current terminal ID
- Log("Changed terminal from %i to %i", giVT_CurrentTerminal, ID);
- giVT_CurrentTerminal = ID;
-
- // Update the screen
- VT_int_UpdateScreen( &gVT_Terminals[ ID ], 1 );
-}
-
-/**
- * \fn void VT_KBCallBack(Uint32 Codepoint)
- * \brief Called on keyboard interrupt
- */
-void VT_KBCallBack(Uint32 Codepoint)
-{
- tVTerm *term = &gVT_Terminals[giVT_CurrentTerminal];
-
- // How the hell did we get a Codepoint of zero?
- if(Codepoint == 0) return;
-
- // Key Up
- if( Codepoint & 0x80000000 )
- {
- Codepoint &= 0x7FFFFFFF;
- switch(Codepoint)
- {
- case KEY_LALT:
- case KEY_RALT:
- gbVT_AltDown = 0;
- break;
- case KEY_LCTRL:
- case KEY_RCTRL:
- gbVT_CtrlDown = 0;
- break;
- }
- return;
- }
-
- switch(Codepoint)
- {
- case KEY_LALT:
- case KEY_RALT:
- gbVT_AltDown = 1;
- break;
- case KEY_LCTRL:
- case KEY_RCTRL:
- gbVT_CtrlDown = 1;
- break;
-
- default:
- if(!gbVT_AltDown || !gbVT_CtrlDown)
- break;
- switch(Codepoint)
- {
- case KEY_F1: VT_SetTerminal(0); return;
- case KEY_F2: VT_SetTerminal(1); return;
- case KEY_F3: VT_SetTerminal(2); return;
- case KEY_F4: VT_SetTerminal(3); return;
- case KEY_F5: VT_SetTerminal(4); return;
- case KEY_F6: VT_SetTerminal(5); return;
- case KEY_F7: VT_SetTerminal(6); return;
- case KEY_F8: VT_SetTerminal(7); return;
- case KEY_F9: VT_SetTerminal(8); return;
- case KEY_F10: VT_SetTerminal(9); return;
- case KEY_F11: VT_SetTerminal(10); return;
- case KEY_F12: VT_SetTerminal(11); return;
- case KEY_PGUP:
- break;
- case KEY_PGDOWN:
- break;
- }
- }
-
- // Encode key
- if(term->Mode == TERM_MODE_TEXT)
- {
- Uint8 buf[6] = {0};
- int len;
-
- // Ignore Modifer Keys
- if(Codepoint > KEY_MODIFIERS) return;
-
- // Get UTF-8/ANSI Encoding
- switch(Codepoint)
- {
- case KEY_LEFT:
- buf[0] = '\x1B'; buf[1] = '[';
- buf[2] = 'D'; len = 3;
- break;
- case KEY_RIGHT:
- buf[0] = '\x1B'; buf[1] = '[';
- buf[2] = 'C'; len = 3;
- break;
- default:
- len = WriteUTF8( buf, Codepoint );
- //Log("Codepoint = 0x%x", Codepoint);
- break;
- }
-
- //Log("len = %i, buf = %s", len, buf);
-
- // Write
- if( MAX_INPUT_CHARS8 - term->InputWrite >= len )
- memcpy( &term->InputBuffer[term->InputWrite], buf, len );
- else {
- memcpy( &term->InputBuffer[term->InputWrite], buf, MAX_INPUT_CHARS8 - term->InputWrite );
- memcpy( &term->InputBuffer[0], buf, len - (MAX_INPUT_CHARS8 - term->InputWrite) );
- }
- // Roll the buffer over
- term->InputWrite += len;
- term->InputWrite %= MAX_INPUT_CHARS8;
- if( (term->InputWrite - term->InputRead + MAX_INPUT_CHARS8)%MAX_INPUT_CHARS8 < len ) {
- term->InputRead = term->InputWrite + 1;
- term->InputRead %= MAX_INPUT_CHARS8;
- }
-
- }
- else
- {
- // Encode the raw UTF-32 Key
- ((Uint32*)term->InputBuffer)[ term->InputWrite ] = Codepoint;
- term->InputWrite ++;
- term->InputWrite %= MAX_INPUT_CHARS32;
- if(term->InputRead == term->InputWrite) {
- term->InputRead ++;
- term->InputRead %= MAX_INPUT_CHARS32;
- }
- }
-}
-
-/**
- * \fn void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
- * \brief Print a string to the Virtual Terminal
- */
-void VT_int_PutString(tVTerm *Term, Uint8 *Buffer, Uint Count)
-{
- Uint32 val;
- int i;
- for( i = 0; i < Count; i++ )
- {
- if( Buffer[i] == 0x1B ) // Escape Sequence
- {
- i ++;
- i += VT_int_ParseEscape(Term, (char*)&Buffer[i]);
- continue;
- }
-
- if( Buffer[i] < 128 ) // Plain ASCII
- VT_int_PutChar(Term, Buffer[i]);
- else { // UTF-8
- i += ReadUTF8(&Buffer[i], &val);
- VT_int_PutChar(Term, val);
- }
- }
-
- // Update cursor
- if( !(Term->Flags & VT_FLAG_HIDECSR) )
- {
- tVideo_IOCtl_Pos pos;
- pos.x = Term->WritePos % Term->Width;
- pos.y = Term->WritePos / Term->Width;
- VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &pos);
- }
-}
-
-/**
- * \fn void VT_int_ClearLine(tVTerm *Term, int Num)
- * \brief Clears a line in a virtual terminal
- */
-void VT_int_ClearLine(tVTerm *Term, int Num)
-{
- int i;
- //ENTER("pTerm iNum", Term, Num);
- for( i = Term->Width; i--; )
- {
- Term->Text[ Num*Term->Width + i ].Ch = 0;
- Term->Text[ Num*Term->Width + i ].Colour = Term->CurColour;
- }
- //LEAVE('-');
-}
-
-/**
- * \fn int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
- * \brief Parses a VT100 Escape code
- */
-int VT_int_ParseEscape(tVTerm *Term, char *Buffer)
-{
- char c;
- int argc = 0, j = 1;
- int tmp;
- int args[4] = {0,0,0,0};
-
- switch(Buffer[0]) {
- //Large Code
- case '[':
- // Get Arguments
- c = Buffer[1];
- do {
- while('0' <= c && c <= '9') {
- args[argc] *= 10;
- args[argc] += c-'0';
- c = Buffer[++j];
- }
- if( j != 1 ) argc ++;
- } while(c == ';');
-
- // Get string (what does this do?)
- if(c == '"') {
- c = Buffer[++j];
- while(c != '"')
- c = Buffer[++j];
- }
-
- // Get Command
- if( ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
- {
- switch(c)
- {
- // Left
- case 'D':
- if(argc == 1) tmp = args[0];
- else tmp = 1;
-
- if( Term->WritePos-(tmp-1) % Term->Width == 0 )
- Term->WritePos -= Term->WritePos % Term->Width;
- else
- Term->WritePos -= tmp;
- break;
-
- // Right
- case 'C':
- if(argc == 1) tmp = args[0];
- else tmp = 1;
- if( (Term->WritePos + tmp) % Term->Width == 0 ) {
- Term->WritePos -= Term->WritePos % Term->Width;
- Term->WritePos += Term->Width - 1;
- } else
- Term->WritePos += tmp;
- break;
-
- // Clear By Line
- case 'J':
- // Clear Screen
- switch(args[0])
- {
- case 2:
- {
- int i = Term->Height * VT_SCROLLBACK;
- while( i-- ) VT_int_ClearLine(Term, i);
- Term->WritePos = 0;
- Term->ViewPos = 0;
- VT_int_UpdateScreen(Term, 1);
- }
- break;
- }
- break;
- // Set Font flags
- case 'm':
- for( ; argc--; )
- {
- // Flags
- if( 0 <= args[argc] && args[argc] <= 8)
- {
- switch(args[argc])
- {
- case 0: Term->CurColour = DEFAULT_COLOUR; break; // Reset
- case 1: Term->CurColour |= 0x80000000; break; // Bright
- case 2: Term->CurColour &= ~0x80000000; break; // Dim
- }
- }
- // Foreground Colour
- else if(30 <= args[argc] && args[argc] <= 37) {
- Term->CurColour &= 0xF000FFFF;
- Term->CurColour |= (Uint32)caVT100Colours[ args[argc]-30+(Term->CurColour>>28) ] << 16;
- }
- // Background Colour
- else if(40 <= args[argc] && args[argc] <= 47) {
- Term->CurColour &= 0xFFFF8000;
- Term->CurColour |= caVT100Colours[ args[argc]-40+((Term->CurColour>>12)&15) ];
- }
- }
- break;
- }
- }
- break;
-
- default:
- break;
- }
-
- return j + 1;
-}
-
-/**
- * \fn void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
- * \brief Write a single character to a VTerm
- */
-void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
-{
- int i;
- //ENTER("pTerm xCh", Term, Ch);
- //LOG("Term = {WritePos:%i, ViewPos:%i}\n", Term->WritePos, Term->ViewPos);
-
- switch(Ch)
- {
- case '\0': return; // Ignore NULL byte
- case '\n':
- Term->WritePos += Term->Width;
- case '\r':
- Term->WritePos -= Term->WritePos % Term->Width;
- break;
-
- case '\t':
- do {
- Term->Text[ Term->WritePos ].Ch = '\0';
- Term->Text[ Term->WritePos ].Colour = Term->CurColour;
- Term->WritePos ++;
- } while(Term->WritePos & 7);
- break;
-
- case '\b':
- // Backspace is invalid at Offset 0
- if(Term->WritePos == 0) break;
-
- Term->WritePos --;
- // Singe Character
- if(Term->Text[ Term->WritePos ].Ch != '\0') {
- Term->Text[ Term->WritePos ].Ch = 0;
- Term->Text[ Term->WritePos ].Colour = Term->CurColour;
- break;
- }
- // Tab
- i = 7; // Limit it to 8
- do {
- Term->Text[ Term->WritePos ].Ch = 0;
- Term->Text[ Term->WritePos ].Colour = Term->CurColour;
- Term->WritePos --;
- } while(Term->WritePos && i-- && Term->Text[ Term->WritePos ].Ch == '\0');
- if(Term->Text[ Term->WritePos ].Ch != '\0')
- Term->WritePos ++;
- break;
-
- default:
- Term->Text[ Term->WritePos ].Ch = Ch;
- Term->Text[ Term->WritePos ].Colour = Term->CurColour;
- Term->WritePos ++;
- break;
- }
-
-
- // Move Screen
- if(Term->WritePos >= Term->Width*Term->Height*VT_SCROLLBACK)
- {
- int base, i;
- Term->WritePos -= Term->Width;
-
- // Update view position
- base = Term->Width*Term->Height*(VT_SCROLLBACK-1);
- if(Term->ViewPos < base) Term->ViewPos += Term->Width;
- if(Term->ViewPos > base) Term->ViewPos = base;
-
- // Scroll terminal cache
- base = Term->Width*(Term->Height*VT_SCROLLBACK-1);
-
- // Scroll Back
- memcpy(
- Term->Text,
- &Term->Text[Term->Width],
- Term->Width*(Term->Height-1)*VT_SCROLLBACK*sizeof(tVT_Char)
- );
-
- // Clear last row
- for( i = 0; i < Term->Width; i ++ )
- {
- Term->Text[ base + i ].Ch = 0;
- Term->Text[ base + i ].Colour = Term->CurColour;
- }
-
- VT_int_UpdateScreen( Term, 1 );
- }
- else if(Term->WritePos > Term->Width*Term->Height+Term->ViewPos)
- {
- Term->ViewPos += Term->Width;
- VT_int_UpdateScreen( Term, 1 );
- }
- else
- VT_int_UpdateScreen( Term, 0 );
-
- //LEAVE('-');
-}
-
-/**
- * \fn void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
- * \brief Updates the video framebuffer
- */
-void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
-{
- // Only update if this is the current terminal
- if( Term != &gVT_Terminals[giVT_CurrentTerminal] ) return;
-
- if( Term->Mode == TERM_MODE_TEXT )
- {
- if(UpdateAll) {
- VFS_WriteAt(
- giVT_OutputDevHandle,
- 0,
- Term->Width*Term->Height*sizeof(tVT_Char),
- &Term->Text[Term->ViewPos]
- );
- } else {
- int pos = Term->WritePos - Term->WritePos % Term->Width;
- VFS_WriteAt(
- giVT_OutputDevHandle,
- (pos - Term->ViewPos)*sizeof(tVT_Char),
- Term->Width*sizeof(tVT_Char),
- &Term->Text[pos]
- );
- }
- }
- else
- {
- VFS_WriteAt(
- giVT_OutputDevHandle,
- 0,
- Term->Width*Term->Height*sizeof(Uint32),
- &Term->Buffer
- );
- }
-}
-
-/**
- * \fn void VT_int_ChangeMode(tVTerm *Term, int NewMode)
- * \brief Change the mode of a VTerm
- */
-void VT_int_ChangeMode(tVTerm *Term, int NewMode)
-{
- switch(NewMode)
- {
- case TERM_MODE_TEXT:
- free(Term->Buffer);
- Term->Text = calloc( Term->Width*Term->Height*VT_SCROLLBACK, sizeof(tVT_Char) );
- break;
- case TERM_MODE_FB:
- free(Term->Text);
- Term->Buffer = calloc( Term->Width*Term->Height, sizeof(Uint32) );
- break;
- case TERM_MODE_OPENGL:
- return;
- }
-
- Term->Mode = NewMode;
-}
-
-// ---
-// Font Render
-// ---
-#define MONOSPACE_FONT 10816
-
-#if MONOSPACE_FONT == 10808 // 8x8
-# include "vterm_font_8x8.h"
-#elif MONOSPACE_FONT == 10816 // 8x16
-# include "vterm_font_8x16.h"
-#endif
-
-// === PROTOTYPES ===
-Uint8 *VT_Font_GetChar(Uint32 Codepoint);
-
-// === GLOBALS ===
-int giVT_CharWidth = FONT_WIDTH+1;
-int giVT_CharHeight = FONT_HEIGHT;
-
-// === CODE ===
-/**
- * \fn void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
- * \brief Render a font character
- */
-void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Pitch, Uint32 BGC, Uint32 FGC)
-{
- Uint8 *font;
- Uint32 *buf = Buffer;
- int x, y;
-
- font = VT_Font_GetChar(Codepoint);
-
- for(y = 0; y < FONT_HEIGHT; y ++)
- {
- for(x = 0; x < FONT_WIDTH; x ++)
- {
- if(*font & (1 << (FONT_WIDTH-x-1)))
- buf[x] = FGC;
- else
- buf[x] = BGC;
- }
- buf += Pitch;
- font ++;
- }
-}
-
-/**
- * \fn Uint32 VT_Colour12to24(Uint16 Col12)
- * \brief Converts a
- */
-Uint32 VT_Colour12to24(Uint16 Col12)
-{
- Uint32 ret;
- int tmp;
- tmp = Col12 & 0xF;
- ret = (tmp << 0) | (tmp << 4);
- tmp = (Col12 & 0xF0) >> 4;
- ret |= (tmp << 8) | (tmp << 12);
- tmp = (Col12 & 0xF00) >> 8;
- ret |= (tmp << 16) | (tmp << 20);
- return ret;
-}
-
-/**
- * \fn Uint8 *VT_Font_GetChar(Uint32 Codepoint)
- * \brief Gets an index into the font array given a Unicode Codepoint
- * \note See http://en.wikipedia.org/wiki/CP437
- */
-Uint8 *VT_Font_GetChar(Uint32 Codepoint)
-{
- int index = 0;
- if(Codepoint < 128)
- return &VTermFont[Codepoint*FONT_HEIGHT];
- switch(Codepoint)
- {
- case 0xC7: index = 128; break; // Ç
- case 0xFC: index = 129; break; // ü
- case 0xE9: index = 130; break; // é
- case 0xE2: index = 131; break; // â
- case 0xE4: index = 132; break; // ä
- case 0xE0: index = 133; break; // à
- case 0xE5: index = 134; break; // å
- case 0xE7: index = 135; break; // ç
- case 0xEA: index = 136; break; // ê
- case 0xEB: index = 137; break; // ë
- case 0xE8: index = 138; break; // è
- case 0xEF: index = 139; break; // ï
- case 0xEE: index = 140; break; // î
- case 0xEC: index = 141; break; // ì
- case 0xC4: index = 142; break; // Ä
- case 0xC5: index = 143; break; // Å
- }
-
- return &VTermFont[index*FONT_HEIGHT];
-}
-
-EXPORTAS(&giVT_CharWidth, giVT_CharWidth);
-EXPORTAS(&giVT_CharHeight, giVT_CharHeight);
-EXPORT(VT_Font_Render);
-EXPORT(VT_Colour12to24);
git.ucc.asn.au / tpg / acess2.git / blobdiff
UCC git Repository :: git.ucc.asn.au