OBJ += heap.o drvutil.o logging.o debug.o lib.o adt.o time.o
OBJ += messages.o modules.o syscalls.o system.o
OBJ += threads.o mutex.o semaphore.o workqueue.o
-OBJ += drv/vterm.o drv/proc.o drv/fifo.o drv/iocache.o drv/pci.o
+OBJ += drv/proc.o drv/fifo.o drv/iocache.o drv/pci.o
+OBJ += drv/vterm.o drv/vterm_font.o drv/vterm_vt100.o drv/vterm_output.o drv/vterm_input.o drv/vterm_termbuf.o
OBJ += binary.o bin/elf.o bin/pe.o
OBJ += vfs/main.o vfs/open.o vfs/acls.o vfs/dir.o vfs/io.o vfs/mount.o
OBJ += vfs/memfile.o vfs/nodecache.o vfs/handle.o vfs/select.o vfs/mmap.o
all: $(BIN)
clean:
-# $(RM) $(BIN) ../Acess2.$(ARCH).gz $(BIN).dsm ../Map.$(ARCH).txt LineCounts.$(ARCH).txt $(OBJ) $(DEPFILES)
- @$(RM) $(BIN) ../Acess2.$(ARCH).gz $(BIN).dsm ../Map.$(ARCH).txt LineCounts.$(ARCH).txt -r $(OBJDIR) $(OBJ) $(DEPFILES) $(BUILDINFO_SRC)
+ @$(RM) $(BIN) ../Acess2.$(ARCH).gz $(BIN).dsm ../Map.$(ARCH).txt LineCounts.$(ARCH).txt
+ @$(RM) -r $(OBJDIR) $(OBJ) $(DEPFILES) $(BUILDINFO_SRC)
install: $(BIN)
- cp $(BIN) $(BIN)_
- $(STRIP) $(BIN)_
- gzip -c $(BIN)_ > $(GZBIN)
- $(RM) $(BIN)_
+ @cp $(BIN) $(BIN)_
+ @$(STRIP) $(BIN)_
+ @gzip -c $(BIN)_ > $(GZBIN)
+ @$(RM) $(BIN)_
$(xCP) $(GZBIN) $(DISTROOT)
apidoc:
* Acess2 Virtual Terminal Driver
*/
#define DEBUG 0
-#include <acess.h>
+#include "vterm.h"
#include <fs_devfs.h>
#include <modules.h>
-#include <api_drv_video.h>
#include <api_drv_keyboard.h>
-#include <api_drv_terminal.h>
+#include <api_drv_video.h>
#include <errno.h>
#include <semaphore.h>
#define VERSION ((0<<8)|(50))
#define NUM_VTS 8
-#define MAX_INPUT_CHARS32 64
-#define MAX_INPUT_CHARS8 (MAX_INPUT_CHARS32*4)
//#define DEFAULT_OUTPUT "BochsGA"
#define DEFAULT_OUTPUT "Vesa"
#define FALLBACK_OUTPUT "x86_VGAText"
#define DEFAULT_HEIGHT 480
#define DEFAULT_SCROLLBACK 2 // 2 Screens of text + current screen
//#define DEFAULT_SCROLLBACK 0
-#define DEFAULT_COLOUR (VT_COL_BLACK|(0xAAA<<16))
-
-#define VT_FLAG_HIDECSR 0x01
-#define VT_FLAG_ALTBUF 0x02 //!< Alternate screen buffer
-#define VT_FLAG_RAWIN 0x04 //!< Don't handle ^Z/^C/^V
-#define VT_FLAG_HASFB 0x10 //!< Set if the VTerm has requested the Framebuffer
-#define VT_FLAG_SHOWCSR 0x20 //!< Always show the text cursor
-
-enum eVT_InModes {
- VT_INMODE_TEXT8, // UTF-8 Text Mode (VT100/xterm 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 NewWidth; //!< Un-applied dimensions (Width)
- short NewHeight; //!< Un-applied dimensions (Height)
- short Width; //!< Virtual Width
- short Height; //!< Virtual Height
- short TextWidth; //!< Text Virtual Width
- short TextHeight; //!< Text Virtual Height
-
- Uint32 CurColour; //!< Current Text Colour
-
- int ViewPos; //!< View Buffer Offset (Text Only)
- int WritePos; //!< Write Buffer Offset (Text Only)
- tVT_Char *Text;
-
- tVT_Char *AltBuf; //!< Alternate Screen Buffer
- int AltWritePos; //!< Alternate write position
- short ScrollTop; //!< Top of scrolling region (smallest)
- short ScrollHeight; //!< Length of scrolling region
-
- int VideoCursorX;
- int VideoCursorY;
-
- tMutex ReadingLock; //!< Lock the VTerm when a process is reading from it
- tTID ReadingThread; //!< Owner of the lock
- int InputRead; //!< Input buffer read position
- int InputWrite; //!< Input buffer write position
- char InputBuffer[MAX_INPUT_CHARS8];
-// tSemaphore InputSemaphore;
-
- Uint32 *Buffer;
-
- // TODO: Do I need to keep this about?
- // When should it be deallocated? on move to text mode, or some other time
- // Call set again, it's freed, and if NULL it doesn't get reallocated.
- tVideo_IOCtl_Bitmap *VideoCursor;
-
- char Name[2]; //!< Name of the terminal
- tVFS_Node Node;
-} tVTerm;
// === IMPORTS ===
extern void Debug_SetKTerminal(const char *File);
// === PROTOTYPES ===
int VT_Install(char **Arguments);
-void VT_InitOutput(void);
-void VT_InitInput(void);
char *VT_ReadDir(tVFS_Node *Node, int Pos);
tVFS_Node *VT_FindDir(tVFS_Node *Node, const 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, const void *Buffer);
int VT_Terminal_IOCtl(tVFS_Node *Node, int Id, void *Data);
-void VT_SetResolution(int Width, int Height);
-void VT_SetMode(int Mode);
-void VT_SetTerminal(int ID);
-void VT_KBCallBack(Uint32 Codepoint);
-void VT_int_PutString(tVTerm *Term, const Uint8 *Buffer, Uint Count);
-void VT_int_ClearLine(tVTerm *Term, int Num);
-void VT_int_ParseEscape_StandardLarge(tVTerm *Term, char CmdChar, int argc, int *args);
- int VT_int_ParseEscape(tVTerm *Term, const char *Buffer);
-void VT_int_PutChar(tVTerm *Term, Uint32 Ch);
-void VT_int_ScrollText(tVTerm *Term, int Count);
-void VT_int_ScrollFramebuffer( tVTerm *Term, int Count );
-void VT_int_UpdateCursor( tVTerm *Term, int bShow );
-void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll );
-void VT_int_ChangeMode(tVTerm *Term, int NewMode, int NewWidth, int NewHeight);
-void VT_int_ToggleAltBuffer(tVTerm *Term, int Enabled);
// === CONSTANTS ===
-const Uint16 caVT100Colours[] = {
- // Black, Red, Green, Yellow, Blue, Purple, Cyan, Gray
- // Same again, but bright
- 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_INPUT, 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 ===
/**
return MODULE_ERR_OK;
}
-/**
- * \fn void VT_InitOutput()
- * \brief Initialise Video Output
- */
-void VT_InitOutput()
-{
- giVT_OutputDevHandle = VFS_Open(gsVT_OutputDevice, VFS_OPENFLAG_WRITE);
- if(giVT_OutputDevHandle == -1) {
- Log_Warning("VTerm", "Oh F**k, I can't open the video device '%s'", gsVT_OutputDevice);
- return ;
- }
- VT_SetResolution( giVT_RealWidth, giVT_RealHeight );
- VT_SetTerminal( 0 );
- VT_SetMode( VIDEO_BUFFMT_TEXT );
-}
-
-/**
- * \fn void VT_InitInput()
- * \brief Initialises the input
- */
-void VT_InitInput()
-{
- giVT_InputDevHandle = VFS_Open(gsVT_InputDevice, VFS_OPENFLAG_READ);
- if(giVT_InputDevHandle == -1) {
- Log_Warning("VTerm", "Can't open the input device '%s'", gsVT_InputDevice);
- return ;
- }
- VFS_IOCtl(giVT_InputDevHandle, KB_IOCTL_SETCALLBACK, VT_KBCallBack);
-}
-
/**
* \brief Set the video resolution
* \param Width New screen width
}
}
-/**
- * \brief Set video output buffer mode
- */
-void VT_SetMode(int Mode)
-{
- VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &Mode );
-}
-
/**
* \fn char *VT_ReadDir(tVFS_Node *Node, int Pos)
* \brief Read from the VTerm Directory
// Update the screen
VT_int_UpdateScreen(gpVT_CurTerm, 1);
}
-
-/**
- * \fn void VT_KBCallBack(Uint32 Codepoint)
- * \brief Called on keyboard interrupt
- * \param Codepoint Pseudo-UTF32 character
- *
- * Handles a key press and sends the key code to the user's buffer.
- * If the code creates a kernel-magic sequence, it is not passed to the
- * user and is handled in-kernel.
- */
-void VT_KBCallBack(Uint32 Codepoint)
-{
- tVTerm *term = gpVT_CurTerm;
-
- // Catch VT binds
- switch( Codepoint & KEY_ACTION_MASK )
- {
- case KEY_ACTION_RELEASE:
- switch(Codepoint & KEY_CODEPOINT_MASK)
- {
- case KEY_LALT: gbVT_AltDown &= ~1; break;
- case KEY_RALT: gbVT_AltDown &= ~2; break;
- case KEY_LCTRL: gbVT_CtrlDown &= ~1; break;
- case KEY_RCTRL: gbVT_CtrlDown &= ~2; break;
- }
- break;
-
- case KEY_ACTION_PRESS:
- switch(Codepoint & KEY_CODEPOINT_MASK)
- {
- case KEY_LALT: gbVT_AltDown |= 1; break;
- case KEY_RALT: gbVT_AltDown |= 2; break;
- case KEY_LCTRL: gbVT_CtrlDown |= 1; break;
- case KEY_RCTRL: gbVT_CtrlDown |= 2; break;
- }
-
- if(!gbVT_AltDown || !gbVT_CtrlDown)
- break;
- switch(Codepoint & KEY_CODEPOINT_MASK)
- {
- 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;
- }
-
- // Scrolling is only valid in text mode
- if(gpVT_CurTerm->Mode != TERM_MODE_TEXT)
- break;
-
- switch(Codepoint & KEY_CODEPOINT_MASK)
- {
- // Scrolling
- case KEY_PGUP:
- if( gpVT_CurTerm->Flags & VT_FLAG_ALTBUF )
- return ;
- gpVT_CurTerm->ViewPos = MAX(
- 0,
- gpVT_CurTerm->ViewPos - gpVT_CurTerm->Width
- );
- return;
- case KEY_PGDOWN:
- if( gpVT_CurTerm->Flags & VT_FLAG_ALTBUF )
- return ;
- gpVT_CurTerm->ViewPos = MIN(
- gpVT_CurTerm->ViewPos + gpVT_CurTerm->Width,
- gpVT_CurTerm->Width * gpVT_CurTerm->Height*giVT_Scrollback
- );
- return;
- }
- break;
- }
-
- // Encode key
- if(term->Mode == TERM_MODE_TEXT)
- {
- Uint8 buf[6] = {0};
- int len = 0;
-
- // Ignore anything that isn't a press or refire
- if( (Codepoint & KEY_ACTION_MASK) != KEY_ACTION_PRESS
- && (Codepoint & KEY_ACTION_MASK) != KEY_ACTION_REFIRE
- )
- {
- return ;
- }
-
- Codepoint &= KEY_CODEPOINT_MASK;
-
- // Ignore Modifer Keys
- if(Codepoint > KEY_MODIFIERS) return;
-
- // Get UTF-8/ANSI Encoding
- switch(Codepoint)
- {
- // 0: No translation, don't send to user
- case 0: break;
- 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;
- case KEY_UP:
- buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'A';
- len = 3;
- break;
- case KEY_DOWN:
- buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'B';
- len = 3;
- break;
-
- case KEY_PGUP:
- buf[0] = '\x1B'; buf[1] = '['; buf[2] = '5'; buf[3] = '~';
- len = 4;
- break;
- case KEY_PGDOWN:
- buf[0] = '\x1B'; buf[1] = '['; buf[2] = '6'; buf[3] = '~';
- len = 4;
- break;
-
- // Attempt to encode in UTF-8
- default:
- len = WriteUTF8( buf, Codepoint );
- if(len == 0) {
- Warning("Codepoint (%x) is unrepresentable in UTF-8", Codepoint);
- }
- break;
- }
-
- if(len == 0) {
- // Unprintable / Don't Pass
- return;
- }
-
-#if 0
- // Handle meta characters
- if( !(term->Flags & VT_FLAG_RAWIN) )
- {
- switch(buf[0])
- {
- case '\3': // ^C
-
- break;
- }
- }
-#endif
-
- // 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 key event
- Uint32 *raw_in = (void*)term->InputBuffer;
-
- #if 0
- // Drop new keys
- if( term->InputWrite == term->InputRead )
- return ;
- #endif
-
- raw_in[ term->InputWrite ] = Codepoint;
- term->InputWrite ++;
- if(term->InputWrite >= MAX_INPUT_CHARS32)
- term->InputWrite -= MAX_INPUT_CHARS32;
-
- #if 1
- // TODO: Should old or new be dropped?
- if(term->InputRead == term->InputWrite) {
- term->InputRead ++;
- if( term->InputRead >= MAX_INPUT_CHARS32 )
- term->InputRead -= MAX_INPUT_CHARS32;
- }
- #endif
- }
-
- VFS_MarkAvaliable(&term->Node, 1);
-}
-
-/**
- * \brief Clears a line in a virtual terminal
- * \param Term Terminal to modify
- * \param Num Line number to clear
- */
-void VT_int_ClearLine(tVTerm *Term, int Num)
-{
- int i;
- tVT_Char *cell;
-
- if( Num < 0 || Num >= Term->TextHeight * (giVT_Scrollback + 1) ) return ;
-
- cell = (Term->Flags & VT_FLAG_ALTBUF) ? Term->AltBuf : Term->Text;
- cell = &cell[ Num*Term->TextWidth ];
-
- for( i = Term->TextWidth; i--; )
- {
- cell[ i ].Ch = 0;
- cell[ i ].Colour = Term->CurColour;
- }
-}
-
-/**
- * \brief Handle a standard large escape code
- *
- * Handles any escape code of the form \x1B[n,...A where n is an integer
- * and A is any letter.
- */
-void VT_int_ParseEscape_StandardLarge(tVTerm *Term, char CmdChar, int argc, int *args)
-{
- int tmp = 1;
- switch(CmdChar)
- {
- // Left
- case 'D':
- tmp = -1;
- // Right
- case 'C':
- if(argc == 1) tmp *= args[0];
- if( Term->Flags & VT_FLAG_ALTBUF )
- {
- if( (Term->AltWritePos + tmp) % Term->TextWidth == 0 ) {
- Term->AltWritePos -= Term->AltWritePos % Term->TextWidth;
- Term->AltWritePos += Term->TextWidth - 1;
- }
- else
- Term->AltWritePos += tmp;
- }
- else
- {
- if( (Term->WritePos + tmp) % Term->TextWidth == 0 ) {
- Term->WritePos -= Term->WritePos % Term->TextWidth;
- Term->WritePos += Term->TextWidth - 1;
- }
- else
- Term->WritePos += tmp;
- }
- break;
-
- // Erase
- case 'J':
- switch(args[0])
- {
- case 0: // Erase below
- break;
- case 1: // Erase above
- break;
- case 2: // Erase all
- if( Term->Flags & VT_FLAG_ALTBUF )
- {
- int i = Term->TextHeight;
- while( i-- ) VT_int_ClearLine(Term, i);
- Term->AltWritePos = 0;
- VT_int_UpdateScreen(Term, 1);
- }
- else
- {
- int i = Term->TextHeight * (giVT_Scrollback + 1);
- while( i-- ) VT_int_ClearLine(Term, i);
- Term->WritePos = 0;
- Term->ViewPos = 0;
- VT_int_UpdateScreen(Term, 1);
- }
- break;
- }
- break;
-
- // Erase in line
- case 'K':
- switch(args[0])
- {
- case 0: // Erase to right
- if( Term->Flags & VT_FLAG_ALTBUF )
- {
- int i, max;
- max = Term->Width - Term->AltWritePos % Term->Width;
- for( i = 0; i < max; i ++ )
- Term->AltBuf[Term->AltWritePos+i].Ch = 0;
- }
- else
- {
- int i, max;
- max = Term->Width - Term->WritePos % Term->Width;
- for( i = 0; i < max; i ++ )
- Term->Text[Term->WritePos+i].Ch = 0;
- }
- VT_int_UpdateScreen(Term, 0);
- break;
- case 1: // Erase to left
- if( Term->Flags & VT_FLAG_ALTBUF )
- {
- int i = Term->AltWritePos % Term->Width;
- while( i -- )
- Term->AltBuf[Term->AltWritePos++].Ch = 0;
- }
- else
- {
- int i = Term->WritePos % Term->Width;
- while( i -- )
- Term->Text[Term->WritePos++].Ch = 0;
- }
- VT_int_UpdateScreen(Term, 0);
- break;
- case 2: // Erase all
- if( Term->Flags & VT_FLAG_ALTBUF )
- {
- VT_int_ClearLine(Term, Term->AltWritePos / Term->Width);
- }
- else
- {
- VT_int_ClearLine(Term, Term->WritePos / Term->Width);
- }
- VT_int_UpdateScreen(Term, 0);
- break;
- }
- break;
-
- // Set cursor position
- case 'H':
- if( Term->Flags & VT_FLAG_ALTBUF )
- Term->AltWritePos = args[0] + args[1]*Term->TextWidth;
- else
- Term->WritePos = args[0] + args[1]*Term->TextWidth;
- //Log_Debug("VTerm", "args = {%i, %i}", args[0], args[1]);
- break;
-
- // Scroll up `n` lines
- case 'S':
- tmp = -1;
- // Scroll down `n` lines
- case 'T':
- if(argc == 1) tmp *= args[0];
- if( Term->Flags & VT_FLAG_ALTBUF )
- VT_int_ScrollText(Term, tmp);
- else
- {
- if(Term->ViewPos/Term->TextWidth + tmp < 0)
- break;
- if(Term->ViewPos/Term->TextWidth + tmp > Term->TextHeight * (giVT_Scrollback + 1))
- break;
-
- Term->ViewPos += Term->TextWidth*tmp;
- }
- break;
-
- // Set Font flags
- case 'm':
- for( ; argc--; )
- {
- int colour_idx;
- // 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) {
- // Get colour index, accounting for bright bit
- colour_idx = args[argc]-30 + ((Term->CurColour>>28) & 8);
- Term->CurColour &= 0x8000FFFF;
- Term->CurColour |= (Uint32)caVT100Colours[ colour_idx ] << 16;
- }
- // Background Colour
- else if(40 <= args[argc] && args[argc] <= 47) {
- // Get colour index, accounting for bright bit
- colour_idx = args[argc]-40 + ((Term->CurColour>>12) & 8);
- Term->CurColour &= 0xFFFF8000;
- Term->CurColour |= caVT100Colours[ colour_idx ];
- }
- else {
- Log_Warning("VTerm", "Unknown font flag %i", args[argc]);
- }
- }
- break;
-
- // Set scrolling region
- case 'r':
- if( argc != 2 ) break;
- Term->ScrollTop = args[0];
- Term->ScrollHeight = args[1] - args[0];
- break;
-
- default:
- Log_Warning("VTerm", "Unknown control sequence '\\x1B[%c'", CmdChar);
- break;
- }
-}
-
-/**
- * \fn int VT_int_ParseEscape(tVTerm *Term, const char *Buffer)
- * \brief Parses a VT100 Escape code
- */
-int VT_int_ParseEscape(tVTerm *Term, const char *Buffer)
-{
- char c;
- int argc = 0, j = 1;
- int args[6] = {0,0,0,0};
- int bQuestionMark = 0;
-
- switch(Buffer[0])
- {
- //Large Code
- case '[':
- // Get Arguments
- c = Buffer[j++];
- if(c == '?') {
- bQuestionMark = 1;
- c = Buffer[j++];
- }
- if( '0' <= c && c <= '9' )
- {
- do {
- if(c == ';') c = Buffer[j++];
- while('0' <= c && c <= '9') {
- args[argc] *= 10;
- args[argc] += c-'0';
- c = Buffer[j++];
- }
- argc ++;
- } while(c == ';');
- }
-
- // Get Command
- if( ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
- {
- if( bQuestionMark )
- {
- switch(c)
- {
- // DEC Private Mode Set
- case 'h':
- if(argc != 1) break;
- switch(args[0])
- {
- case 25:
- Term->Flags &= ~VT_FLAG_HIDECSR;
- break;
- case 1047:
- VT_int_ToggleAltBuffer(Term, 1);
- break;
- }
- break;
- case 'l':
- if(argc != 1) break;
- switch(args[0])
- {
- case 25:
- Term->Flags |= VT_FLAG_HIDECSR;
- break;
- case 1047:
- VT_int_ToggleAltBuffer(Term, 0);
- break;
- }
- break;
- default:
- Log_Warning("VTerm", "Unknown control sequence '\\x1B[?%c'", c);
- break;
- }
- }
- else
- {
- VT_int_ParseEscape_StandardLarge(Term, c, argc, args);
- }
- }
- break;
-
- default:
- Log_Notice("VTerm", "TODO: Handle short escape codes");
- break;
- }
-
- //Log_Debug("VTerm", "j = %i, Buffer = '%s'", j, Buffer);
- return j;
-}
-
-/**
- * \fn void VT_int_PutString(tVTerm *Term, const Uint8 *Buffer, Uint Count)
- * \brief Print a string to the Virtual Terminal
- */
-void VT_int_PutString(tVTerm *Term, const Uint8 *Buffer, Uint Count)
-{
- Uint32 val;
- int i;
-
- // Iterate
- for( i = 0; i < Count; i++ )
- {
- // Handle escape sequences
- if( Buffer[i] == 0x1B )
- {
- i ++;
- i += VT_int_ParseEscape(Term, (const char*)&Buffer[i]) - 1;
- continue;
- }
-
- // Fast check for non UTF-8
- if( Buffer[i] < 128 ) // Plain ASCII
- VT_int_PutChar(Term, Buffer[i]);
- else { // UTF-8
- i += ReadUTF8(&Buffer[i], &val) - 1;
- VT_int_PutChar(Term, val);
- }
- }
- // Update Screen
- VT_int_UpdateScreen( Term, 0 );
-}
-
-/**
- * \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;
- tVT_Char *buffer;
- int write_pos;
-
- if(Term->Flags & VT_FLAG_ALTBUF) {
- buffer = Term->AltBuf;
- write_pos = Term->AltWritePos;
- }
- else {
- buffer = Term->Text;
- write_pos = Term->WritePos;
- }
-
- switch(Ch)
- {
- case '\0': return; // Ignore NULL byte
- case '\n':
- VT_int_UpdateScreen( Term, 0 ); // Update the line before newlining
- write_pos += Term->TextWidth;
- case '\r':
- write_pos -= write_pos % Term->TextWidth;
- break;
-
- case '\t': { int tmp = write_pos / Term->TextWidth;
- write_pos %= Term->TextWidth;
- do {
- buffer[ write_pos ].Ch = '\0';
- buffer[ write_pos ].Colour = Term->CurColour;
- write_pos ++;
- } while(write_pos & 7);
- write_pos += tmp * Term->TextWidth;
- break; }
-
- case '\b':
- // Backspace is invalid at Offset 0
- if(write_pos == 0) break;
-
- write_pos --;
- // Singe Character
- if(buffer[ write_pos ].Ch != '\0') {
- buffer[ write_pos ].Ch = 0;
- buffer[ write_pos ].Colour = Term->CurColour;
- break;
- }
- // Tab
- i = 7; // Limit it to 8
- do {
- buffer[ write_pos ].Ch = 0;
- buffer[ write_pos ].Colour = Term->CurColour;
- write_pos --;
- } while(write_pos && i-- && buffer[ write_pos ].Ch == '\0');
- if(buffer[ write_pos ].Ch != '\0')
- write_pos ++;
- break;
-
- default:
- buffer[ write_pos ].Ch = Ch;
- buffer[ write_pos ].Colour = Term->CurColour;
- // Update the line before wrapping
- if( (write_pos + 1) % Term->TextWidth == 0 )
- VT_int_UpdateScreen( Term, 0 );
- write_pos ++;
- break;
- }
-
- if(Term->Flags & VT_FLAG_ALTBUF)
- {
- Term->AltBuf = buffer;
- Term->AltWritePos = write_pos;
-
- if(Term->AltWritePos >= Term->TextWidth*Term->TextHeight)
- {
- Term->AltWritePos -= Term->TextWidth;
- VT_int_ScrollText(Term, 1);
- }
-
- }
- else
- {
- Term->Text = buffer;
- Term->WritePos = write_pos;
- // Move Screen
- // - Check if we need to scroll the entire scrollback buffer
- if(Term->WritePos >= Term->TextWidth*Term->TextHeight*(giVT_Scrollback+1))
- {
- int base;
-
- // Update previous line
- Term->WritePos -= Term->TextWidth;
- VT_int_UpdateScreen( Term, 0 );
-
- // Update view position
- base = Term->TextWidth*Term->TextHeight*(giVT_Scrollback);
- if(Term->ViewPos < base)
- Term->ViewPos += Term->Width;
- if(Term->ViewPos > base)
- Term->ViewPos = base;
-
- VT_int_ScrollText(Term, 1);
- }
- // Ok, so we only need to scroll the screen
- else if(Term->WritePos >= Term->ViewPos + Term->TextWidth*Term->TextHeight)
- {
- // Update the last line
- Term->WritePos -= Term->TextWidth;
- VT_int_UpdateScreen( Term, 0 );
- Term->WritePos += Term->TextWidth;
-
- VT_int_ScrollText(Term, 1);
-
- Term->ViewPos += Term->TextWidth;
- }
- }
-
- //LEAVE('-');
-}
-
-void VT_int_ScrollText(tVTerm *Term, int Count)
-{
- tVT_Char *buf;
- int height, init_write_pos;
- int len, i;
- int scroll_top, scroll_height;
-
- // Get buffer pointer and attributes
- if( Term->Flags & VT_FLAG_ALTBUF )
- {
- buf = Term->AltBuf;
- height = Term->TextHeight;
- init_write_pos = Term->AltWritePos;
- scroll_top = Term->ScrollTop;
- scroll_height = Term->ScrollHeight;
- }
- else
- {
- buf = Term->Text;
- height = Term->TextHeight*(giVT_Scrollback+1);
- init_write_pos = Term->WritePos;
- scroll_top = 0;
- scroll_height = height;
- }
-
- // Scroll text downwards
- if( Count > 0 )
- {
- int base;
-
- // Set up
- if(Count > scroll_height) Count = scroll_height;
- base = Term->TextWidth*(scroll_top + scroll_height - Count);
- len = Term->TextWidth*(scroll_height - Count);
-
- // Scroll terminal cache
- memmove(
- &buf[Term->TextWidth*scroll_top],
- &buf[Term->TextWidth*(scroll_top+Count)],
- len*sizeof(tVT_Char)
- );
- // Clear last rows
- for( i = 0; i < Term->TextWidth*Count; i ++ )
- {
- buf[ base + i ].Ch = 0;
- buf[ base + i ].Colour = Term->CurColour;
- }
-
- // Update Screen
- VT_int_ScrollFramebuffer( Term, Count );
- if( Term->Flags & VT_FLAG_ALTBUF )
- Term->AltWritePos = base;
- else
- Term->WritePos = Term->ViewPos + Term->TextWidth*(Term->TextHeight - Count);
- for( i = 0; i < Count; i ++ )
- {
- VT_int_UpdateScreen( Term, 0 );
- if( Term->Flags & VT_FLAG_ALTBUF )
- Term->AltWritePos += Term->TextWidth;
- else
- Term->WritePos += Term->TextWidth;
- }
- }
- else
- {
- Count = -Count;
- if(Count > scroll_height) Count = scroll_height;
-
- len = Term->TextWidth*(scroll_height - Count);
-
- // Scroll terminal cache
- memmove(
- &buf[Term->TextWidth*(scroll_top+Count)],
- &buf[Term->TextWidth*scroll_top],
- len*sizeof(tVT_Char)
- );
- // Clear preceding rows
- for( i = 0; i < Term->TextWidth*Count; i ++ )
- {
- buf[ i ].Ch = 0;
- buf[ i ].Colour = Term->CurColour;
- }
-
- VT_int_ScrollFramebuffer( Term, -Count );
- if( Term->Flags & VT_FLAG_ALTBUF )
- Term->AltWritePos = Term->TextWidth*scroll_top;
- else
- Term->WritePos = Term->ViewPos;
- for( i = 0; i < Count; i ++ )
- {
- VT_int_UpdateScreen( Term, 0 );
- if( Term->Flags & VT_FLAG_ALTBUF )
- Term->AltWritePos += Term->TextWidth;
- else
- Term->WritePos += Term->TextWidth;
- }
- }
-
- if( Term->Flags & VT_FLAG_ALTBUF )
- Term->AltWritePos = init_write_pos;
- else
- Term->WritePos = init_write_pos;
-}
-
-/**
- * \fn void VT_int_ScrollFramebuffer( tVTerm *Term, int Count )
- * \note Scrolls the framebuffer down by \a Count text lines
- */
-void VT_int_ScrollFramebuffer( tVTerm *Term, int Count )
-{
- int tmp;
- struct {
- Uint8 Op;
- Uint16 DstX, DstY;
- Uint16 SrcX, SrcY;
- Uint16 W, H;
- } PACKED buf;
-
- // Only update if this is the current terminal
- if( Term != gpVT_CurTerm ) return;
-
- if( Count > Term->ScrollHeight ) Count = Term->ScrollHeight;
- if( Count < -Term->ScrollHeight ) Count = -Term->ScrollHeight;
-
- // Switch to 2D Command Stream
- tmp = VIDEO_BUFFMT_2DSTREAM;
- VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
-
- // BLIT to 0,0 from 0,giVT_CharHeight
- buf.Op = VIDEO_2DOP_BLIT;
- buf.SrcX = 0; buf.DstX = 0;
- // TODO: Don't assume character dimensions
- buf.W = Term->TextWidth * giVT_CharWidth;
- if( Count > 0 )
- {
- buf.SrcY = (Term->ScrollTop+Count) * giVT_CharHeight;
- buf.DstY = Term->ScrollTop * giVT_CharHeight;
- }
- else // Scroll up, move text down
- {
- Count = -Count;
- buf.SrcY = Term->ScrollTop * giVT_CharHeight;
- buf.DstY = (Term->ScrollTop+Count) * giVT_CharHeight;
- }
- buf.H = (Term->ScrollHeight-Count) * giVT_CharHeight;
- VFS_WriteAt(giVT_OutputDevHandle, 0, sizeof(buf), &buf);
-
- // Restore old mode (this function is only called during text mode)
- tmp = VIDEO_BUFFMT_TEXT;
- VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
-}
-
-void VT_int_UpdateCursor( tVTerm *Term, int bShow )
-{
- tVideo_IOCtl_Pos csr_pos;
-
- if( Term != gpVT_CurTerm ) return ;
-
- if( !bShow )
- {
- csr_pos.x = -1;
- csr_pos.y = -1;
- }
- else if( Term->Mode == TERM_MODE_TEXT )
- {
- int offset;
-
-// if( !(Term->Flags & VT_FLAG_SHOWCSR)
-// && ( (Term->Flags & VT_FLAG_HIDECSR) || !Term->Node.ReadThreads)
-// )
- if( !Term->Text || Term->Flags & VT_FLAG_HIDECSR )
- {
- csr_pos.x = -1;
- csr_pos.y = -1;
- }
- else
- {
- if(Term->Flags & VT_FLAG_ALTBUF)
- offset = Term->AltWritePos;
- else
- offset = Term->WritePos - Term->ViewPos;
-
- csr_pos.x = offset % Term->TextWidth;
- csr_pos.y = offset / Term->TextWidth;
- if( 0 > csr_pos.y || csr_pos.y >= Term->TextHeight )
- csr_pos.y = -1, csr_pos.x = -1;
- }
- }
- else
- {
- csr_pos.x = Term->VideoCursorX;
- csr_pos.y = Term->VideoCursorY;
- }
- VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &csr_pos);
-}
-
-/**
- * \fn void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
- * \brief Updates the video framebuffer
- */
-void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
-{
- tVT_Char *buffer;
- int view_pos, write_pos;
- // Only update if this is the current terminal
- if( Term != gpVT_CurTerm ) return;
-
- switch( Term->Mode )
- {
- case TERM_MODE_TEXT:
- view_pos = (Term->Flags & VT_FLAG_ALTBUF) ? 0 : Term->ViewPos;
- write_pos = (Term->Flags & VT_FLAG_ALTBUF) ? Term->AltWritePos : Term->WritePos;
- buffer = (Term->Flags & VT_FLAG_ALTBUF) ? Term->AltBuf : Term->Text;
- // Re copy the entire screen?
- if(UpdateAll) {
- VFS_WriteAt(
- giVT_OutputDevHandle,
- 0,
- Term->TextWidth*Term->TextHeight*sizeof(tVT_Char),
- &buffer[view_pos]
- );
- }
- // Only copy the current line
- else {
- int ofs = write_pos - write_pos % Term->TextWidth;
- VFS_WriteAt(
- giVT_OutputDevHandle,
- (ofs - view_pos)*sizeof(tVT_Char),
- Term->TextWidth*sizeof(tVT_Char),
- &buffer[ofs]
- );
- }
- break;
- case TERM_MODE_FB:
- break;
- }
-
- VT_int_UpdateCursor(Term, 1);
-}
-
-/**
- * \brief Update the screen mode
- * \param Term Terminal to update
- * \param NewMode New mode to set
- * \param NewWidth New framebuffer width
- * \param NewHeight New framebuffer height
- */
-void VT_int_ChangeMode(tVTerm *Term, int NewMode, int NewWidth, int NewHeight)
-{
- int oldW = Term->Width;
- int oldTW = Term->TextWidth;
- int oldH = Term->Height;
- int oldTH = Term->TextHeight;
- tVT_Char *oldTBuf = Term->Text;
- Uint32 *oldFB = Term->Buffer;
- int w, h, i;
-
- // TODO: Increase RealWidth/RealHeight when this happens
- if(NewWidth > giVT_RealWidth) NewWidth = giVT_RealWidth;
- if(NewHeight > giVT_RealHeight) NewHeight = giVT_RealHeight;
-
- Term->Mode = NewMode;
-
- // Fast exit if no resolution change
- if(NewWidth == Term->Width && NewHeight == Term->Height)
- return ;
-
- // Calculate new dimensions
- Term->Width = NewWidth;
- Term->Height = NewHeight;
- Term->TextWidth = NewWidth / giVT_CharWidth;
- Term->TextHeight = NewHeight / giVT_CharHeight;
- Term->ScrollHeight = Term->TextHeight - (oldTH - Term->ScrollHeight) - Term->ScrollTop;
-
- // Allocate new buffers
- // - Text
- Term->Text = calloc(
- Term->TextWidth * Term->TextHeight * (giVT_Scrollback+1),
- sizeof(tVT_Char)
- );
- if(oldTBuf) {
- // Copy old buffer
- w = (oldTW > Term->TextWidth) ? Term->TextWidth : oldTW;
- h = (oldTH > Term->TextHeight) ? Term->TextHeight : oldTH;
- h *= giVT_Scrollback + 1;
- for( i = 0; i < h; i ++ )
- {
- memcpy(
- &Term->Text[i*Term->TextWidth],
- &oldTBuf[i*oldTW],
- w*sizeof(tVT_Char)
- );
- }
- free(oldTBuf);
- }
-
- // - Alternate Text
- Term->AltBuf = realloc(
- Term->AltBuf,
- Term->TextWidth * Term->TextHeight * sizeof(tVT_Char)
- );
-
- // - Framebuffer
- if(oldFB) {
- Term->Buffer = calloc( Term->Width * Term->Height, sizeof(Uint32) );
- // Copy old buffer
- w = (oldW > Term->Width) ? Term->Width : oldW;
- h = (oldH > Term->Height) ? Term->Height : oldH;
- for( i = 0; i < h; i ++ )
- {
- memcpy(
- &Term->Buffer[i*Term->Width],
- &oldFB[i*oldW],
- w*sizeof(Uint32)
- );
- }
- free(oldFB);
- }
-
- // Debug
- switch(NewMode)
- {
- case TERM_MODE_TEXT:
- Log_Log("VTerm", "Set VT %p to text mode (%ix%i)",
- Term, Term->TextWidth, Term->TextHeight);
- break;
- case TERM_MODE_FB:
- Log_Log("VTerm", "Set VT %p to framebuffer mode (%ix%i)",
- Term, Term->Width, Term->Height);
- break;
- //case TERM_MODE_2DACCEL:
- //case TERM_MODE_3DACCEL:
- // return;
- }
-}
-
-
-void VT_int_ToggleAltBuffer(tVTerm *Term, int Enabled)
-{
- if(Enabled)
- Term->Flags |= VT_FLAG_ALTBUF;
- else
- Term->Flags &= ~VT_FLAG_ALTBUF;
- VT_int_UpdateScreen(Term, 1);
-}
-
-// ---
-// 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;
-int giVT_CharHeight = FONT_HEIGHT;
-
-// === CODE ===
-/**
- * \brief Render a font character
- */
-void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Depth, int Pitch, Uint32 BGC, Uint32 FGC)
-{
- Uint8 *font;
- int x, y;
-
- // 8-bpp and below
- if( Depth <= 8 )
- {
- Uint8 *buf = Buffer;
-
- 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 = (void*)( (tVAddr)buf + Pitch );
- font ++;
- }
- }
- // 16-bpp and below
- else if( Depth <= 16 )
- {
- Uint16 *buf = Buffer;
-
- 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 = (void*)( (tVAddr)buf + Pitch );
- font ++;
- }
- }
- // 24-bpp colour
- // - Special handling to not overwrite the next pixel
- //TODO: Endian issues here
- else if( Depth == 24 )
- {
- Uint8 *buf = Buffer;
- Uint8 bg_r = (BGC >> 16) & 0xFF;
- Uint8 bg_g = (BGC >> 8) & 0xFF;
- Uint8 bg_b = (BGC >> 0) & 0xFF;
- Uint8 fg_r = (FGC >> 16) & 0xFF;
- Uint8 fg_g = (FGC >> 8) & 0xFF;
- Uint8 fg_b = (FGC >> 0) & 0xFF;
-
- font = VT_Font_GetChar(Codepoint);
-
- for(y = 0; y < FONT_HEIGHT; y ++)
- {
- for(x = 0; x < FONT_WIDTH; x ++)
- {
- Uint8 r, g, b;
-
- if(*font & (1 << (FONT_WIDTH-x-1))) {
- r = fg_r; g = fg_g; b = fg_b;
- }
- else {
- r = bg_r; g = bg_g; b = bg_b;
- }
- buf[x*3+0] = b;
- buf[x*3+1] = g;
- buf[x*3+2] = r;
- }
- buf = (void*)( (tVAddr)buf + Pitch );
- font ++;
- }
- }
- // 32-bpp colour (nice and easy)
- else if( Depth == 32 )
- {
- Uint32 *buf = Buffer;
-
- 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 = (Uint32*)( (tVAddr)buf + Pitch );
- font ++;
- }
- }
-}
-
-/**
- * \fn Uint32 VT_Colour12to24(Uint16 Col12)
- * \brief Converts a 12-bit colour into 24 bits
- */
-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;
-}
-/**
- * \brief Converts a 12-bit colour into 15 bits
- */
-Uint16 VT_Colour12to15(Uint16 Col12)
-{
- Uint32 ret;
- int tmp;
- tmp = Col12 & 0xF;
- ret = (tmp << 1) | (tmp & 1);
- tmp = (Col12 & 0xF0) >> 4;
- ret |= ( (tmp << 1) | (tmp & 1) ) << 5;
- tmp = (Col12 & 0xF00) >> 8;
- ret |= ( (tmp << 1) | (tmp & 1) ) << 10;
- return ret;
-}
-
-/**
- * \brief Converts a 12-bit colour into any other depth
- * \param Col12 12-bit source colour
- * \param Depth Desired bit deptj
- * \note Green then blue get the extra avaliable bits (16:5-6-5, 14:4-5-5)
- */
-Uint32 VT_Colour12toN(Uint16 Col12, int Depth)
-{
- Uint32 ret;
- Uint32 r, g, b;
- int rSize, gSize, bSize;
-
- // Fast returns
- if( Depth == 24 ) return VT_Colour12to24(Col12);
- if( Depth == 15 ) return VT_Colour12to15(Col12);
- // - 32 is a special case, it's usually 24-bit colour with an unused byte
- if( Depth == 32 ) return VT_Colour12to24(Col12);
-
- // Bounds checks
- if( Depth < 8 ) return 0;
- if( Depth > 32 ) return 0;
-
- r = Col12 & 0xF;
- g = (Col12 & 0xF0) >> 4;
- b = (Col12 & 0xF00) >> 8;
-
- rSize = gSize = bSize = Depth / 3;
- if( rSize + gSize + bSize < Depth ) // Depth % 3 == 1
- gSize ++;
- if( rSize + gSize + bSize < Depth ) // Depth % 3 == 2
- bSize ++;
-
- // Expand
- r <<= rSize - 4; g <<= gSize - 4; b <<= bSize - 4;
- // Fill with the lowest bit
- if( Col12 & 0x001 ) r |= (1 << (rSize - 4)) - 1;
- if( Col12 & 0x010 ) r |= (1 << (gSize - 4)) - 1;
- if( Col12 & 0x100 ) r |= (1 << (bSize - 4)) - 1;
-
- // Create output
- ret = r;
- ret |= g << rSize;
- ret |= b << (rSize + gSize);
-
- 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);
--- /dev/null
+/*
+ * Acess2 Kernel
+ * - By John Hodge (thePowersGang)
+ *
+ * drv/vterm.h
+ * - Virtual Terminal - Common
+ */
+#ifndef _VTERM_H_
+#define _VTERM_H_
+
+#include <acess.h>
+#include <api_drv_video.h> // tVT_Char
+#include <api_drv_terminal.h>
+#include <vfs.h>
+
+// === CONSTANTS ===
+#define MAX_INPUT_CHARS32 64
+#define MAX_INPUT_CHARS8 (MAX_INPUT_CHARS32*4)
+#define DEFAULT_COLOUR (VT_COL_BLACK|(0xAAA<<16))
+
+/**
+ * \{
+ */
+#define VT_FLAG_HIDECSR 0x01 //!< Hide the cursor
+#define VT_FLAG_ALTBUF 0x02 //!< Alternate screen buffer
+#define VT_FLAG_RAWIN 0x04 //!< Don't handle ^Z/^C/^V
+#define VT_FLAG_HASFB 0x10 //!< Set if the VTerm has requested the Framebuffer
+#define VT_FLAG_SHOWCSR 0x20 //!< Always show the text cursor
+/**
+ * \}
+ */
+
+enum eVT_InModes {
+ VT_INMODE_TEXT8, // UTF-8 Text Mode (VT100/xterm Emulation)
+ VT_INMODE_TEXT32, // UTF-32 Text Mode (Acess Native)
+ NUM_VT_INMODES
+};
+
+
+// === TYPES ==
+typedef struct sVTerm tVTerm;
+
+// === STRUCTURES ===
+struct sVTerm
+{
+ int Mode; //!< Current Mode (see ::eTplTerminal_Modes)
+ int Flags; //!< Flags (see VT_FLAG_*)
+
+ short NewWidth; //!< Un-applied dimensions (Width)
+ short NewHeight; //!< Un-applied dimensions (Height)
+ short Width; //!< Virtual Width
+ short Height; //!< Virtual Height
+ short TextWidth; //!< Text Virtual Width
+ short TextHeight; //!< Text Virtual Height
+
+ Uint32 CurColour; //!< Current Text Colour
+
+ int ViewPos; //!< View Buffer Offset (Text Only)
+ int WritePos; //!< Write Buffer Offset (Text Only)
+ tVT_Char *Text;
+
+ tVT_Char *AltBuf; //!< Alternate Screen Buffer
+ int AltWritePos; //!< Alternate write position
+ short ScrollTop; //!< Top of scrolling region (smallest)
+ short ScrollHeight; //!< Length of scrolling region
+
+ int VideoCursorX;
+ int VideoCursorY;
+
+ tMutex ReadingLock; //!< Lock the VTerm when a process is reading from it
+ tTID ReadingThread; //!< Owner of the lock
+ int InputRead; //!< Input buffer read position
+ int InputWrite; //!< Input buffer write position
+ char InputBuffer[MAX_INPUT_CHARS8];
+// tSemaphore InputSemaphore;
+
+ Uint32 *Buffer;
+
+ // TODO: Do I need to keep this about?
+ // When should it be deallocated? on move to text mode, or some other time
+ // Call set again, it's freed, and if NULL it doesn't get reallocated.
+ tVideo_IOCtl_Bitmap *VideoCursor;
+
+ char Name[2]; //!< Name of the terminal
+ tVFS_Node Node;
+};
+
+// === GOBALS ===
+extern tVTerm *gpVT_CurTerm;
+extern int giVT_Scrollback;
+extern short giVT_RealWidth; //!< Screen Width
+extern short giVT_RealHeight; //!< Screen Width
+extern char *gsVT_OutputDevice;
+extern char *gsVT_InputDevice;
+extern int giVT_OutputDevHandle;
+extern int giVT_InputDevHandle;
+
+// === FUNCTIONS ===
+extern void VT_SetResolution(int Width, int Height);
+extern void VT_SetTerminal(int ID);
+// --- Output ---
+extern void VT_InitOutput(void);
+extern void VT_SetMode(int Mode);
+extern void VT_int_ScrollFramebuffer( tVTerm *Term, int Count );
+extern void VT_int_UpdateCursor( tVTerm *Term, int bShow );
+extern void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll );
+// --- Input ---
+extern void VT_InitInput(void);
+extern void VT_KBCallBack(Uint32 Codepoint);
+// --- VT100 Emulation ---
+extern void VT_int_ParseEscape_StandardLarge(tVTerm *Term, char CmdChar, int argc, int *args);
+extern int VT_int_ParseEscape(tVTerm *Term, const char *Buffer);
+// --- Terminal Buffer ---
+extern void VT_int_PutString(tVTerm *Term, const Uint8 *Buffer, Uint Count);
+extern void VT_int_PutChar(tVTerm *Term, Uint32 Ch);
+extern void VT_int_ScrollText(tVTerm *Term, int Count);
+extern void VT_int_ClearLine(tVTerm *Term, int Num);
+extern void VT_int_ChangeMode(tVTerm *Term, int NewMode, int NewWidth, int NewHeight);
+extern void VT_int_ToggleAltBuffer(tVTerm *Term, int Enabled);
+
+#endif
+
--- /dev/null
+/*
+ * Acess2 Kernel
+ * - By John Hodge (thePowersGang)
+ *
+ * drv/vterm_font.c
+ * - Virtual Terminal - Font rendering code
+ */
+#include "vterm.h"
+#include <api_drv_terminal.h>
+
+// ---
+// 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;
+int giVT_CharHeight = FONT_HEIGHT;
+
+// === CODE ===
+/**
+ * \brief Render a font character
+ */
+void VT_Font_Render(Uint32 Codepoint, void *Buffer, int Depth, int Pitch, Uint32 BGC, Uint32 FGC)
+{
+ Uint8 *font;
+ int x, y;
+
+ // 8-bpp and below
+ if( Depth <= 8 )
+ {
+ Uint8 *buf = Buffer;
+
+ 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 = (void*)( (tVAddr)buf + Pitch );
+ font ++;
+ }
+ }
+ // 16-bpp and below
+ else if( Depth <= 16 )
+ {
+ Uint16 *buf = Buffer;
+
+ 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 = (void*)( (tVAddr)buf + Pitch );
+ font ++;
+ }
+ }
+ // 24-bpp colour
+ // - Special handling to not overwrite the next pixel
+ //TODO: Endian issues here
+ else if( Depth == 24 )
+ {
+ Uint8 *buf = Buffer;
+ Uint8 bg_r = (BGC >> 16) & 0xFF;
+ Uint8 bg_g = (BGC >> 8) & 0xFF;
+ Uint8 bg_b = (BGC >> 0) & 0xFF;
+ Uint8 fg_r = (FGC >> 16) & 0xFF;
+ Uint8 fg_g = (FGC >> 8) & 0xFF;
+ Uint8 fg_b = (FGC >> 0) & 0xFF;
+
+ font = VT_Font_GetChar(Codepoint);
+
+ for(y = 0; y < FONT_HEIGHT; y ++)
+ {
+ for(x = 0; x < FONT_WIDTH; x ++)
+ {
+ Uint8 r, g, b;
+
+ if(*font & (1 << (FONT_WIDTH-x-1))) {
+ r = fg_r; g = fg_g; b = fg_b;
+ }
+ else {
+ r = bg_r; g = bg_g; b = bg_b;
+ }
+ buf[x*3+0] = b;
+ buf[x*3+1] = g;
+ buf[x*3+2] = r;
+ }
+ buf = (void*)( (tVAddr)buf + Pitch );
+ font ++;
+ }
+ }
+ // 32-bpp colour (nice and easy)
+ else if( Depth == 32 )
+ {
+ Uint32 *buf = Buffer;
+
+ 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 = (Uint32*)( (tVAddr)buf + Pitch );
+ font ++;
+ }
+ }
+}
+
+/**
+ * \fn Uint32 VT_Colour12to24(Uint16 Col12)
+ * \brief Converts a 12-bit colour into 24 bits
+ */
+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;
+}
+/**
+ * \brief Converts a 12-bit colour into 15 bits
+ */
+Uint16 VT_Colour12to15(Uint16 Col12)
+{
+ Uint32 ret;
+ int tmp;
+ tmp = Col12 & 0xF;
+ ret = (tmp << 1) | (tmp & 1);
+ tmp = (Col12 & 0xF0) >> 4;
+ ret |= ( (tmp << 1) | (tmp & 1) ) << 5;
+ tmp = (Col12 & 0xF00) >> 8;
+ ret |= ( (tmp << 1) | (tmp & 1) ) << 10;
+ return ret;
+}
+
+/**
+ * \brief Converts a 12-bit colour into any other depth
+ * \param Col12 12-bit source colour
+ * \param Depth Desired bit deptj
+ * \note Green then blue get the extra avaliable bits (16:5-6-5, 14:4-5-5)
+ */
+Uint32 VT_Colour12toN(Uint16 Col12, int Depth)
+{
+ Uint32 ret;
+ Uint32 r, g, b;
+ int rSize, gSize, bSize;
+
+ // Fast returns
+ if( Depth == 24 ) return VT_Colour12to24(Col12);
+ if( Depth == 15 ) return VT_Colour12to15(Col12);
+ // - 32 is a special case, it's usually 24-bit colour with an unused byte
+ if( Depth == 32 ) return VT_Colour12to24(Col12);
+
+ // Bounds checks
+ if( Depth < 8 ) return 0;
+ if( Depth > 32 ) return 0;
+
+ r = Col12 & 0xF;
+ g = (Col12 & 0xF0) >> 4;
+ b = (Col12 & 0xF00) >> 8;
+
+ rSize = gSize = bSize = Depth / 3;
+ if( rSize + gSize + bSize < Depth ) // Depth % 3 == 1
+ gSize ++;
+ if( rSize + gSize + bSize < Depth ) // Depth % 3 == 2
+ bSize ++;
+
+ // Expand
+ r <<= rSize - 4; g <<= gSize - 4; b <<= bSize - 4;
+ // Fill with the lowest bit
+ if( Col12 & 0x001 ) r |= (1 << (rSize - 4)) - 1;
+ if( Col12 & 0x010 ) r |= (1 << (gSize - 4)) - 1;
+ if( Col12 & 0x100 ) r |= (1 << (bSize - 4)) - 1;
+
+ // Create output
+ ret = r;
+ ret |= g << rSize;
+ ret |= b << (rSize + gSize);
+
+ 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);
--- /dev/null
+/*
+ * Acess2 Kernel
+ * - By John Hodge (thePowersGang)
+ *
+ * drv/vterm_input.c
+ * - Virtual Terminal - Input code
+ */
+#include "vterm.h"
+#include <api_drv_keyboard.h>
+
+// === GLOBALS ===
+// --- Key States --- (Used for VT Switching/Magic Combos)
+ int gbVT_CtrlDown = 0;
+ int gbVT_AltDown = 0;
+ int gbVT_SysrqDown = 0;
+
+// === CODE ===
+/**
+ * \fn void VT_InitInput()
+ * \brief Initialises the input
+ */
+void VT_InitInput()
+{
+ giVT_InputDevHandle = VFS_Open(gsVT_InputDevice, VFS_OPENFLAG_READ);
+ if(giVT_InputDevHandle == -1) {
+ Log_Warning("VTerm", "Can't open the input device '%s'", gsVT_InputDevice);
+ return ;
+ }
+ VFS_IOCtl(giVT_InputDevHandle, KB_IOCTL_SETCALLBACK, VT_KBCallBack);
+}
+
+/**
+ * \fn void VT_KBCallBack(Uint32 Codepoint)
+ * \brief Called on keyboard interrupt
+ * \param Codepoint Pseudo-UTF32 character
+ *
+ * Handles a key press and sends the key code to the user's buffer.
+ * If the code creates a kernel-magic sequence, it is not passed to the
+ * user and is handled in-kernel.
+ */
+void VT_KBCallBack(Uint32 Codepoint)
+{
+ tVTerm *term = gpVT_CurTerm;
+
+ // Catch VT binds
+ switch( Codepoint & KEY_ACTION_MASK )
+ {
+ case KEY_ACTION_RELEASE:
+ switch(Codepoint & KEY_CODEPOINT_MASK)
+ {
+ case KEY_LALT: gbVT_AltDown &= ~1; break;
+ case KEY_RALT: gbVT_AltDown &= ~2; break;
+ case KEY_LCTRL: gbVT_CtrlDown &= ~1; break;
+ case KEY_RCTRL: gbVT_CtrlDown &= ~2; break;
+ }
+ break;
+
+ case KEY_ACTION_PRESS:
+ switch(Codepoint & KEY_CODEPOINT_MASK)
+ {
+ case KEY_LALT: gbVT_AltDown |= 1; break;
+ case KEY_RALT: gbVT_AltDown |= 2; break;
+ case KEY_LCTRL: gbVT_CtrlDown |= 1; break;
+ case KEY_RCTRL: gbVT_CtrlDown |= 2; break;
+ }
+
+ if(!gbVT_AltDown || !gbVT_CtrlDown)
+ break;
+ switch(Codepoint & KEY_CODEPOINT_MASK)
+ {
+ 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;
+ }
+
+ // Scrolling is only valid in text mode
+ if(gpVT_CurTerm->Mode != TERM_MODE_TEXT)
+ break;
+
+ switch(Codepoint & KEY_CODEPOINT_MASK)
+ {
+ // Scrolling
+ case KEY_PGUP:
+ if( gpVT_CurTerm->Flags & VT_FLAG_ALTBUF )
+ return ;
+ gpVT_CurTerm->ViewPos = MAX(
+ 0,
+ gpVT_CurTerm->ViewPos - gpVT_CurTerm->Width
+ );
+ return;
+ case KEY_PGDOWN:
+ if( gpVT_CurTerm->Flags & VT_FLAG_ALTBUF )
+ return ;
+ gpVT_CurTerm->ViewPos = MIN(
+ gpVT_CurTerm->ViewPos + gpVT_CurTerm->Width,
+ gpVT_CurTerm->Width * gpVT_CurTerm->Height*giVT_Scrollback
+ );
+ return;
+ }
+ break;
+ }
+
+ // Encode key
+ if(term->Mode == TERM_MODE_TEXT)
+ {
+ Uint8 buf[6] = {0};
+ int len = 0;
+
+ // Ignore anything that isn't a press or refire
+ if( (Codepoint & KEY_ACTION_MASK) != KEY_ACTION_PRESS
+ && (Codepoint & KEY_ACTION_MASK) != KEY_ACTION_REFIRE
+ )
+ {
+ return ;
+ }
+
+ Codepoint &= KEY_CODEPOINT_MASK;
+
+ // Ignore Modifer Keys
+ if(Codepoint > KEY_MODIFIERS) return;
+
+ // Get UTF-8/ANSI Encoding
+ switch(Codepoint)
+ {
+ // 0: No translation, don't send to user
+ case 0: break;
+ 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;
+ case KEY_UP:
+ buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'A';
+ len = 3;
+ break;
+ case KEY_DOWN:
+ buf[0] = '\x1B'; buf[1] = '['; buf[2] = 'B';
+ len = 3;
+ break;
+
+ case KEY_PGUP:
+ buf[0] = '\x1B'; buf[1] = '['; buf[2] = '5'; buf[3] = '~';
+ len = 4;
+ break;
+ case KEY_PGDOWN:
+ buf[0] = '\x1B'; buf[1] = '['; buf[2] = '6'; buf[3] = '~';
+ len = 4;
+ break;
+
+ // Attempt to encode in UTF-8
+ default:
+ len = WriteUTF8( buf, Codepoint );
+ if(len == 0) {
+ Warning("Codepoint (%x) is unrepresentable in UTF-8", Codepoint);
+ }
+ break;
+ }
+
+ if(len == 0) {
+ // Unprintable / Don't Pass
+ return;
+ }
+
+#if 0
+ // Handle meta characters
+ if( !(term->Flags & VT_FLAG_RAWIN) )
+ {
+ switch(buf[0])
+ {
+ case '\3': // ^C
+
+ break;
+ }
+ }
+#endif
+
+ // 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 key event
+ Uint32 *raw_in = (void*)term->InputBuffer;
+
+ #if 0
+ // Drop new keys
+ if( term->InputWrite == term->InputRead )
+ return ;
+ #endif
+
+ raw_in[ term->InputWrite ] = Codepoint;
+ term->InputWrite ++;
+ if(term->InputWrite >= MAX_INPUT_CHARS32)
+ term->InputWrite -= MAX_INPUT_CHARS32;
+
+ #if 1
+ // TODO: Should old or new be dropped?
+ if(term->InputRead == term->InputWrite) {
+ term->InputRead ++;
+ if( term->InputRead >= MAX_INPUT_CHARS32 )
+ term->InputRead -= MAX_INPUT_CHARS32;
+ }
+ #endif
+ }
+
+ VFS_MarkAvaliable(&term->Node, 1);
+}
+
--- /dev/null
+/*
+ * Acess2 Kernel
+ * - By John Hodge (thePowersGang)
+ *
+ * drv/vterm_input.c
+ * - Virtual Terminal - Input code
+ */
+#include "vterm.h"
+#include <api_drv_video.h>
+
+// === CODE ===
+/**
+ * \fn void VT_InitOutput()
+ * \brief Initialise Video Output
+ */
+void VT_InitOutput()
+{
+ giVT_OutputDevHandle = VFS_Open(gsVT_OutputDevice, VFS_OPENFLAG_WRITE);
+ if(giVT_OutputDevHandle == -1) {
+ Log_Warning("VTerm", "Oh F**k, I can't open the video device '%s'", gsVT_OutputDevice);
+ return ;
+ }
+ VT_SetResolution( giVT_RealWidth, giVT_RealHeight );
+ VT_SetTerminal( 0 );
+ VT_SetMode( VIDEO_BUFFMT_TEXT );
+}
+
+/**
+ * \brief Set video output buffer mode
+ */
+void VT_SetMode(int Mode)
+{
+ VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &Mode );
+}
+
+/**
+ * \fn void VT_int_ScrollFramebuffer( tVTerm *Term, int Count )
+ * \note Scrolls the framebuffer down by \a Count text lines
+ */
+void VT_int_ScrollFramebuffer( tVTerm *Term, int Count )
+{
+ int tmp;
+ struct {
+ Uint8 Op;
+ Uint16 DstX, DstY;
+ Uint16 SrcX, SrcY;
+ Uint16 W, H;
+ } PACKED buf;
+
+ // Only update if this is the current terminal
+ if( Term != gpVT_CurTerm ) return;
+
+ if( Count > Term->ScrollHeight ) Count = Term->ScrollHeight;
+ if( Count < -Term->ScrollHeight ) Count = -Term->ScrollHeight;
+
+ // Switch to 2D Command Stream
+ tmp = VIDEO_BUFFMT_2DSTREAM;
+ VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
+
+ // BLIT to 0,0 from 0,giVT_CharHeight
+ buf.Op = VIDEO_2DOP_BLIT;
+ buf.SrcX = 0; buf.DstX = 0;
+ // TODO: Don't assume character dimensions
+ buf.W = Term->TextWidth * giVT_CharWidth;
+ if( Count > 0 )
+ {
+ buf.SrcY = (Term->ScrollTop+Count) * giVT_CharHeight;
+ buf.DstY = Term->ScrollTop * giVT_CharHeight;
+ }
+ else // Scroll up, move text down
+ {
+ Count = -Count;
+ buf.SrcY = Term->ScrollTop * giVT_CharHeight;
+ buf.DstY = (Term->ScrollTop+Count) * giVT_CharHeight;
+ }
+ buf.H = (Term->ScrollHeight-Count) * giVT_CharHeight;
+ VFS_WriteAt(giVT_OutputDevHandle, 0, sizeof(buf), &buf);
+
+ // Restore old mode (this function is only called during text mode)
+ tmp = VIDEO_BUFFMT_TEXT;
+ VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
+}
+
+void VT_int_UpdateCursor( tVTerm *Term, int bShow )
+{
+ tVideo_IOCtl_Pos csr_pos;
+
+ if( Term != gpVT_CurTerm ) return ;
+
+ if( !bShow )
+ {
+ csr_pos.x = -1;
+ csr_pos.y = -1;
+ }
+ else if( Term->Mode == TERM_MODE_TEXT )
+ {
+ int offset;
+
+// if( !(Term->Flags & VT_FLAG_SHOWCSR)
+// && ( (Term->Flags & VT_FLAG_HIDECSR) || !Term->Node.ReadThreads)
+// )
+ if( !Term->Text || Term->Flags & VT_FLAG_HIDECSR )
+ {
+ csr_pos.x = -1;
+ csr_pos.y = -1;
+ }
+ else
+ {
+ if(Term->Flags & VT_FLAG_ALTBUF)
+ offset = Term->AltWritePos;
+ else
+ offset = Term->WritePos - Term->ViewPos;
+
+ csr_pos.x = offset % Term->TextWidth;
+ csr_pos.y = offset / Term->TextWidth;
+ if( 0 > csr_pos.y || csr_pos.y >= Term->TextHeight )
+ csr_pos.y = -1, csr_pos.x = -1;
+ }
+ }
+ else
+ {
+ csr_pos.x = Term->VideoCursorX;
+ csr_pos.y = Term->VideoCursorY;
+ }
+ VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &csr_pos);
+}
+
+/**
+ * \fn void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
+ * \brief Updates the video framebuffer
+ */
+void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll )
+{
+ tVT_Char *buffer;
+ int view_pos, write_pos;
+ // Only update if this is the current terminal
+ if( Term != gpVT_CurTerm ) return;
+
+ switch( Term->Mode )
+ {
+ case TERM_MODE_TEXT:
+ view_pos = (Term->Flags & VT_FLAG_ALTBUF) ? 0 : Term->ViewPos;
+ write_pos = (Term->Flags & VT_FLAG_ALTBUF) ? Term->AltWritePos : Term->WritePos;
+ buffer = (Term->Flags & VT_FLAG_ALTBUF) ? Term->AltBuf : Term->Text;
+ // Re copy the entire screen?
+ if(UpdateAll) {
+ VFS_WriteAt(
+ giVT_OutputDevHandle,
+ 0,
+ Term->TextWidth*Term->TextHeight*sizeof(tVT_Char),
+ &buffer[view_pos]
+ );
+ }
+ // Only copy the current line
+ else {
+ int ofs = write_pos - write_pos % Term->TextWidth;
+ VFS_WriteAt(
+ giVT_OutputDevHandle,
+ (ofs - view_pos)*sizeof(tVT_Char),
+ Term->TextWidth*sizeof(tVT_Char),
+ &buffer[ofs]
+ );
+ }
+ break;
+ case TERM_MODE_FB:
+ break;
+ }
+
+ VT_int_UpdateCursor(Term, 1);
+}
+
--- /dev/null
+/*
+ * Acess2 Kernel
+ * - By John Hodge (thePowersGang)
+ *
+ * drv/vterm_termbuf.c
+ * - Virtual Terminal - Terminal buffer manipulation
+ */
+#include "vterm.h"
+
+// === CODE ===
+
+/**
+ * \fn void VT_int_PutString(tVTerm *Term, const Uint8 *Buffer, Uint Count)
+ * \brief Print a string to the Virtual Terminal
+ */
+void VT_int_PutString(tVTerm *Term, const Uint8 *Buffer, Uint Count)
+{
+ Uint32 val;
+ int i;
+
+ // Iterate
+ for( i = 0; i < Count; i++ )
+ {
+ // Handle escape sequences
+ if( Buffer[i] == 0x1B )
+ {
+ i ++;
+ i += VT_int_ParseEscape(Term, (const char*)&Buffer[i]) - 1;
+ continue;
+ }
+
+ // Fast check for non UTF-8
+ if( Buffer[i] < 128 ) // Plain ASCII
+ VT_int_PutChar(Term, Buffer[i]);
+ else { // UTF-8
+ i += ReadUTF8(&Buffer[i], &val) - 1;
+ VT_int_PutChar(Term, val);
+ }
+ }
+ // Update Screen
+ VT_int_UpdateScreen( Term, 0 );
+}
+
+/**
+ * \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;
+ tVT_Char *buffer;
+ int write_pos;
+
+ if(Term->Flags & VT_FLAG_ALTBUF) {
+ buffer = Term->AltBuf;
+ write_pos = Term->AltWritePos;
+ }
+ else {
+ buffer = Term->Text;
+ write_pos = Term->WritePos;
+ }
+
+ switch(Ch)
+ {
+ case '\0': return; // Ignore NULL byte
+ case '\n':
+ VT_int_UpdateScreen( Term, 0 ); // Update the line before newlining
+ write_pos += Term->TextWidth;
+ case '\r':
+ write_pos -= write_pos % Term->TextWidth;
+ break;
+
+ case '\t': { int tmp = write_pos / Term->TextWidth;
+ write_pos %= Term->TextWidth;
+ do {
+ buffer[ write_pos ].Ch = '\0';
+ buffer[ write_pos ].Colour = Term->CurColour;
+ write_pos ++;
+ } while(write_pos & 7);
+ write_pos += tmp * Term->TextWidth;
+ break; }
+
+ case '\b':
+ // Backspace is invalid at Offset 0
+ if(write_pos == 0) break;
+
+ write_pos --;
+ // Singe Character
+ if(buffer[ write_pos ].Ch != '\0') {
+ buffer[ write_pos ].Ch = 0;
+ buffer[ write_pos ].Colour = Term->CurColour;
+ break;
+ }
+ // Tab
+ i = 7; // Limit it to 8
+ do {
+ buffer[ write_pos ].Ch = 0;
+ buffer[ write_pos ].Colour = Term->CurColour;
+ write_pos --;
+ } while(write_pos && i-- && buffer[ write_pos ].Ch == '\0');
+ if(buffer[ write_pos ].Ch != '\0')
+ write_pos ++;
+ break;
+
+ default:
+ buffer[ write_pos ].Ch = Ch;
+ buffer[ write_pos ].Colour = Term->CurColour;
+ // Update the line before wrapping
+ if( (write_pos + 1) % Term->TextWidth == 0 )
+ VT_int_UpdateScreen( Term, 0 );
+ write_pos ++;
+ break;
+ }
+
+ if(Term->Flags & VT_FLAG_ALTBUF)
+ {
+ Term->AltBuf = buffer;
+ Term->AltWritePos = write_pos;
+
+ if(Term->AltWritePos >= Term->TextWidth*Term->TextHeight)
+ {
+ Term->AltWritePos -= Term->TextWidth;
+ VT_int_ScrollText(Term, 1);
+ }
+
+ }
+ else
+ {
+ Term->Text = buffer;
+ Term->WritePos = write_pos;
+ // Move Screen
+ // - Check if we need to scroll the entire scrollback buffer
+ if(Term->WritePos >= Term->TextWidth*Term->TextHeight*(giVT_Scrollback+1))
+ {
+ int base;
+
+ // Update previous line
+ Term->WritePos -= Term->TextWidth;
+ VT_int_UpdateScreen( Term, 0 );
+
+ // Update view position
+ base = Term->TextWidth*Term->TextHeight*(giVT_Scrollback);
+ if(Term->ViewPos < base)
+ Term->ViewPos += Term->Width;
+ if(Term->ViewPos > base)
+ Term->ViewPos = base;
+
+ VT_int_ScrollText(Term, 1);
+ }
+ // Ok, so we only need to scroll the screen
+ else if(Term->WritePos >= Term->ViewPos + Term->TextWidth*Term->TextHeight)
+ {
+ // Update the last line
+ Term->WritePos -= Term->TextWidth;
+ VT_int_UpdateScreen( Term, 0 );
+ Term->WritePos += Term->TextWidth;
+
+ VT_int_ScrollText(Term, 1);
+
+ Term->ViewPos += Term->TextWidth;
+ }
+ }
+
+ //LEAVE('-');
+}
+
+void VT_int_ScrollText(tVTerm *Term, int Count)
+{
+ tVT_Char *buf;
+ int height, init_write_pos;
+ int len, i;
+ int scroll_top, scroll_height;
+
+ // Get buffer pointer and attributes
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ {
+ buf = Term->AltBuf;
+ height = Term->TextHeight;
+ init_write_pos = Term->AltWritePos;
+ scroll_top = Term->ScrollTop;
+ scroll_height = Term->ScrollHeight;
+ }
+ else
+ {
+ buf = Term->Text;
+ height = Term->TextHeight*(giVT_Scrollback+1);
+ init_write_pos = Term->WritePos;
+ scroll_top = 0;
+ scroll_height = height;
+ }
+
+ // Scroll text downwards
+ if( Count > 0 )
+ {
+ int base;
+
+ // Set up
+ if(Count > scroll_height) Count = scroll_height;
+ base = Term->TextWidth*(scroll_top + scroll_height - Count);
+ len = Term->TextWidth*(scroll_height - Count);
+
+ // Scroll terminal cache
+ memmove(
+ &buf[Term->TextWidth*scroll_top],
+ &buf[Term->TextWidth*(scroll_top+Count)],
+ len*sizeof(tVT_Char)
+ );
+ // Clear last rows
+ for( i = 0; i < Term->TextWidth*Count; i ++ )
+ {
+ buf[ base + i ].Ch = 0;
+ buf[ base + i ].Colour = Term->CurColour;
+ }
+
+ // Update Screen
+ VT_int_ScrollFramebuffer( Term, Count );
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ Term->AltWritePos = base;
+ else
+ Term->WritePos = Term->ViewPos + Term->TextWidth*(Term->TextHeight - Count);
+ for( i = 0; i < Count; i ++ )
+ {
+ VT_int_UpdateScreen( Term, 0 );
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ Term->AltWritePos += Term->TextWidth;
+ else
+ Term->WritePos += Term->TextWidth;
+ }
+ }
+ else
+ {
+ Count = -Count;
+ if(Count > scroll_height) Count = scroll_height;
+
+ len = Term->TextWidth*(scroll_height - Count);
+
+ // Scroll terminal cache
+ memmove(
+ &buf[Term->TextWidth*(scroll_top+Count)],
+ &buf[Term->TextWidth*scroll_top],
+ len*sizeof(tVT_Char)
+ );
+ // Clear preceding rows
+ for( i = 0; i < Term->TextWidth*Count; i ++ )
+ {
+ buf[ i ].Ch = 0;
+ buf[ i ].Colour = Term->CurColour;
+ }
+
+ VT_int_ScrollFramebuffer( Term, -Count );
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ Term->AltWritePos = Term->TextWidth*scroll_top;
+ else
+ Term->WritePos = Term->ViewPos;
+ for( i = 0; i < Count; i ++ )
+ {
+ VT_int_UpdateScreen( Term, 0 );
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ Term->AltWritePos += Term->TextWidth;
+ else
+ Term->WritePos += Term->TextWidth;
+ }
+ }
+
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ Term->AltWritePos = init_write_pos;
+ else
+ Term->WritePos = init_write_pos;
+}
+
+/**
+ * \brief Clears a line in a virtual terminal
+ * \param Term Terminal to modify
+ * \param Num Line number to clear
+ */
+void VT_int_ClearLine(tVTerm *Term, int Num)
+{
+ int i;
+ tVT_Char *cell;
+
+ if( Num < 0 || Num >= Term->TextHeight * (giVT_Scrollback + 1) ) return ;
+
+ cell = (Term->Flags & VT_FLAG_ALTBUF) ? Term->AltBuf : Term->Text;
+ cell = &cell[ Num*Term->TextWidth ];
+
+ for( i = Term->TextWidth; i--; )
+ {
+ cell[ i ].Ch = 0;
+ cell[ i ].Colour = Term->CurColour;
+ }
+}
+
+/**
+ * \brief Update the screen mode
+ * \param Term Terminal to update
+ * \param NewMode New mode to set
+ * \param NewWidth New framebuffer width
+ * \param NewHeight New framebuffer height
+ */
+void VT_int_ChangeMode(tVTerm *Term, int NewMode, int NewWidth, int NewHeight)
+{
+ int oldW = Term->Width;
+ int oldTW = Term->TextWidth;
+ int oldH = Term->Height;
+ int oldTH = Term->TextHeight;
+ tVT_Char *oldTBuf = Term->Text;
+ Uint32 *oldFB = Term->Buffer;
+ int w, h, i;
+
+ // TODO: Increase RealWidth/RealHeight when this happens
+ if(NewWidth > giVT_RealWidth) NewWidth = giVT_RealWidth;
+ if(NewHeight > giVT_RealHeight) NewHeight = giVT_RealHeight;
+
+ Term->Mode = NewMode;
+
+ // Fast exit if no resolution change
+ if(NewWidth == Term->Width && NewHeight == Term->Height)
+ return ;
+
+ // Calculate new dimensions
+ Term->Width = NewWidth;
+ Term->Height = NewHeight;
+ Term->TextWidth = NewWidth / giVT_CharWidth;
+ Term->TextHeight = NewHeight / giVT_CharHeight;
+ Term->ScrollHeight = Term->TextHeight - (oldTH - Term->ScrollHeight) - Term->ScrollTop;
+
+ // Allocate new buffers
+ // - Text
+ Term->Text = calloc(
+ Term->TextWidth * Term->TextHeight * (giVT_Scrollback+1),
+ sizeof(tVT_Char)
+ );
+ if(oldTBuf) {
+ // Copy old buffer
+ w = (oldTW > Term->TextWidth) ? Term->TextWidth : oldTW;
+ h = (oldTH > Term->TextHeight) ? Term->TextHeight : oldTH;
+ h *= giVT_Scrollback + 1;
+ for( i = 0; i < h; i ++ )
+ {
+ memcpy(
+ &Term->Text[i*Term->TextWidth],
+ &oldTBuf[i*oldTW],
+ w*sizeof(tVT_Char)
+ );
+ }
+ free(oldTBuf);
+ }
+
+ // - Alternate Text
+ Term->AltBuf = realloc(
+ Term->AltBuf,
+ Term->TextWidth * Term->TextHeight * sizeof(tVT_Char)
+ );
+
+ // - Framebuffer
+ if(oldFB) {
+ Term->Buffer = calloc( Term->Width * Term->Height, sizeof(Uint32) );
+ // Copy old buffer
+ w = (oldW > Term->Width) ? Term->Width : oldW;
+ h = (oldH > Term->Height) ? Term->Height : oldH;
+ for( i = 0; i < h; i ++ )
+ {
+ memcpy(
+ &Term->Buffer[i*Term->Width],
+ &oldFB[i*oldW],
+ w*sizeof(Uint32)
+ );
+ }
+ free(oldFB);
+ }
+
+ // Debug
+ switch(NewMode)
+ {
+ case TERM_MODE_TEXT:
+ Log_Log("VTerm", "Set VT %p to text mode (%ix%i)",
+ Term, Term->TextWidth, Term->TextHeight);
+ break;
+ case TERM_MODE_FB:
+ Log_Log("VTerm", "Set VT %p to framebuffer mode (%ix%i)",
+ Term, Term->Width, Term->Height);
+ break;
+ //case TERM_MODE_2DACCEL:
+ //case TERM_MODE_3DACCEL:
+ // return;
+ }
+}
+
+
+void VT_int_ToggleAltBuffer(tVTerm *Term, int Enabled)
+{
+ if(Enabled)
+ Term->Flags |= VT_FLAG_ALTBUF;
+ else
+ Term->Flags &= ~VT_FLAG_ALTBUF;
+ VT_int_UpdateScreen(Term, 1);
+}
+
--- /dev/null
+/*
+ * Acess2 Kernel
+ * - By John Hodge (thePowersGang)
+ *
+ * drv/vterm_vt100.c
+ * - Virtual Terminal - VT100 (Kinda) Emulation
+ */
+#include "vterm.h"
+
+// === CONSTANTS ===
+const Uint16 caVT100Colours[] = {
+ // Black, Red, Green, Yellow, Blue, Purple, Cyan, Gray
+ // Same again, but bright
+ VT_COL_BLACK, 0x700, 0x070, 0x770, 0x007, 0x707, 0x077, 0xAAA,
+ VT_COL_GREY, 0xF00, 0x0F0, 0xFF0, 0x00F, 0xF0F, 0x0FF, VT_COL_WHITE
+ };
+
+// === CODE ===
+/**
+ * \brief Handle a standard large escape code
+ *
+ * Handles any escape code of the form \x1B[n,...A where n is an integer
+ * and A is any letter.
+ */
+void VT_int_ParseEscape_StandardLarge(tVTerm *Term, char CmdChar, int argc, int *args)
+{
+ int tmp = 1;
+ switch(CmdChar)
+ {
+ // Left
+ case 'D':
+ tmp = -1;
+ // Right
+ case 'C':
+ if(argc == 1) tmp *= args[0];
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ {
+ if( (Term->AltWritePos + tmp) % Term->TextWidth == 0 ) {
+ Term->AltWritePos -= Term->AltWritePos % Term->TextWidth;
+ Term->AltWritePos += Term->TextWidth - 1;
+ }
+ else
+ Term->AltWritePos += tmp;
+ }
+ else
+ {
+ if( (Term->WritePos + tmp) % Term->TextWidth == 0 ) {
+ Term->WritePos -= Term->WritePos % Term->TextWidth;
+ Term->WritePos += Term->TextWidth - 1;
+ }
+ else
+ Term->WritePos += tmp;
+ }
+ break;
+
+ // Erase
+ case 'J':
+ switch(args[0])
+ {
+ case 0: // Erase below
+ break;
+ case 1: // Erase above
+ break;
+ case 2: // Erase all
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ {
+ int i = Term->TextHeight;
+ while( i-- ) VT_int_ClearLine(Term, i);
+ Term->AltWritePos = 0;
+ VT_int_UpdateScreen(Term, 1);
+ }
+ else
+ {
+ int i = Term->TextHeight * (giVT_Scrollback + 1);
+ while( i-- ) VT_int_ClearLine(Term, i);
+ Term->WritePos = 0;
+ Term->ViewPos = 0;
+ VT_int_UpdateScreen(Term, 1);
+ }
+ break;
+ }
+ break;
+
+ // Erase in line
+ case 'K':
+ switch(args[0])
+ {
+ case 0: // Erase to right
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ {
+ int i, max;
+ max = Term->Width - Term->AltWritePos % Term->Width;
+ for( i = 0; i < max; i ++ )
+ Term->AltBuf[Term->AltWritePos+i].Ch = 0;
+ }
+ else
+ {
+ int i, max;
+ max = Term->Width - Term->WritePos % Term->Width;
+ for( i = 0; i < max; i ++ )
+ Term->Text[Term->WritePos+i].Ch = 0;
+ }
+ VT_int_UpdateScreen(Term, 0);
+ break;
+ case 1: // Erase to left
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ {
+ int i = Term->AltWritePos % Term->Width;
+ while( i -- )
+ Term->AltBuf[Term->AltWritePos++].Ch = 0;
+ }
+ else
+ {
+ int i = Term->WritePos % Term->Width;
+ while( i -- )
+ Term->Text[Term->WritePos++].Ch = 0;
+ }
+ VT_int_UpdateScreen(Term, 0);
+ break;
+ case 2: // Erase all
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ {
+ VT_int_ClearLine(Term, Term->AltWritePos / Term->Width);
+ }
+ else
+ {
+ VT_int_ClearLine(Term, Term->WritePos / Term->Width);
+ }
+ VT_int_UpdateScreen(Term, 0);
+ break;
+ }
+ break;
+
+ // Set cursor position
+ case 'H':
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ Term->AltWritePos = args[0] + args[1]*Term->TextWidth;
+ else
+ Term->WritePos = args[0] + args[1]*Term->TextWidth;
+ //Log_Debug("VTerm", "args = {%i, %i}", args[0], args[1]);
+ break;
+
+ // Scroll up `n` lines
+ case 'S':
+ tmp = -1;
+ // Scroll down `n` lines
+ case 'T':
+ if(argc == 1) tmp *= args[0];
+ if( Term->Flags & VT_FLAG_ALTBUF )
+ VT_int_ScrollText(Term, tmp);
+ else
+ {
+ if(Term->ViewPos/Term->TextWidth + tmp < 0)
+ break;
+ if(Term->ViewPos/Term->TextWidth + tmp > Term->TextHeight * (giVT_Scrollback + 1))
+ break;
+
+ Term->ViewPos += Term->TextWidth*tmp;
+ }
+ break;
+
+ // Set Font flags
+ case 'm':
+ for( ; argc--; )
+ {
+ int colour_idx;
+ // 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) {
+ // Get colour index, accounting for bright bit
+ colour_idx = args[argc]-30 + ((Term->CurColour>>28) & 8);
+ Term->CurColour &= 0x8000FFFF;
+ Term->CurColour |= (Uint32)caVT100Colours[ colour_idx ] << 16;
+ }
+ // Background Colour
+ else if(40 <= args[argc] && args[argc] <= 47) {
+ // Get colour index, accounting for bright bit
+ colour_idx = args[argc]-40 + ((Term->CurColour>>12) & 8);
+ Term->CurColour &= 0xFFFF8000;
+ Term->CurColour |= caVT100Colours[ colour_idx ];
+ }
+ else {
+ Log_Warning("VTerm", "Unknown font flag %i", args[argc]);
+ }
+ }
+ break;
+
+ // Set scrolling region
+ case 'r':
+ if( argc != 2 ) break;
+ Term->ScrollTop = args[0];
+ Term->ScrollHeight = args[1] - args[0];
+ break;
+
+ default:
+ Log_Warning("VTerm", "Unknown control sequence '\\x1B[%c'", CmdChar);
+ break;
+ }
+}
+
+/**
+ * \fn int VT_int_ParseEscape(tVTerm *Term, const char *Buffer)
+ * \brief Parses a VT100 Escape code
+ */
+int VT_int_ParseEscape(tVTerm *Term, const char *Buffer)
+{
+ char c;
+ int argc = 0, j = 1;
+ int args[6] = {0,0,0,0};
+ int bQuestionMark = 0;
+
+ switch(Buffer[0])
+ {
+ //Large Code
+ case '[':
+ // Get Arguments
+ c = Buffer[j++];
+ if(c == '?') {
+ bQuestionMark = 1;
+ c = Buffer[j++];
+ }
+ if( '0' <= c && c <= '9' )
+ {
+ do {
+ if(c == ';') c = Buffer[j++];
+ while('0' <= c && c <= '9') {
+ args[argc] *= 10;
+ args[argc] += c-'0';
+ c = Buffer[j++];
+ }
+ argc ++;
+ } while(c == ';');
+ }
+
+ // Get Command
+ if( ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
+ {
+ if( bQuestionMark )
+ {
+ switch(c)
+ {
+ // DEC Private Mode Set
+ case 'h':
+ if(argc != 1) break;
+ switch(args[0])
+ {
+ case 25:
+ Term->Flags &= ~VT_FLAG_HIDECSR;
+ break;
+ case 1047:
+ VT_int_ToggleAltBuffer(Term, 1);
+ break;
+ }
+ break;
+ case 'l':
+ if(argc != 1) break;
+ switch(args[0])
+ {
+ case 25:
+ Term->Flags |= VT_FLAG_HIDECSR;
+ break;
+ case 1047:
+ VT_int_ToggleAltBuffer(Term, 0);
+ break;
+ }
+ break;
+ default:
+ Log_Warning("VTerm", "Unknown control sequence '\\x1B[?%c'", c);
+ break;
+ }
+ }
+ else
+ {
+ VT_int_ParseEscape_StandardLarge(Term, c, argc, args);
+ }
+ }
+ break;
+
+ default:
+ Log_Notice("VTerm", "TODO: Handle short escape codes");
+ break;
+ }
+
+ //Log_Debug("VTerm", "j = %i, Buffer = '%s'", j, Buffer);
+ return j;
+}
git.ucc.asn.au / tpg / acess2.git / commitdiff
UCC git Repository :: git.ucc.asn.au