/*
* Acess2 Virtual Terminal Driver
*/
-#define DEBUG 1
+#define DEBUG 0
#include <acess.h>
#include <fs_devfs.h>
#include <modules.h>
#define NUM_VTS 8
#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_OUTPUT "Vesa"
#define DEFAULT_INPUT "PS2Keyboard"
-#define DEFAULT_WIDTH 80
-#define DEFAULT_HEIGHT 25
+#define DEFAULT_WIDTH 640
+#define DEFAULT_HEIGHT 480
+#define DEFAULT_SCROLLBACK 2 // 2 Screens of text + current screen
#define DEFAULT_COLOUR (VT_COL_BLACK|(0xAAA<<16))
#define VT_FLAG_HIDECSR 0x01
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
tVT_Char *Text;
Uint32 *Buffer;
};
+ char Name[2]; //!< Name of the terminal
tVFS_Node Node;
} tVTerm;
// === 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, 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_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, Uint8 *Buffer, Uint Count);
int VT_int_ParseEscape(tVTerm *Term, char *Buffer);
void VT_int_PutChar(tVTerm *Term, Uint32 Ch);
+void VT_int_ScrollFramebuffer( tVTerm *Term );
void VT_int_UpdateScreen( tVTerm *Term, int UpdateAll );
void VT_int_ChangeMode(tVTerm *Term, int NewMode);
// === 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
};
// --- Terminals ---
tVTerm gVT_Terminals[NUM_VTS];
int giVT_CurrentTerminal = 0;
+tVTerm *gpVT_CurTerm = &gVT_Terminals[0];
+// --- Video State ---
+short giVT_RealWidth = DEFAULT_WIDTH; //!< Screen Width
+short giVT_RealHeight = DEFAULT_HEIGHT; //!< Screen Height
+ int giVT_Scrollback = DEFAULT_SCROLLBACK;
// --- Driver Handles ---
char *gsVT_OutputDevice = NULL;
char *gsVT_InputDevice = NULL;
*/
int VT_Install(char **Arguments)
{
- char **args = Arguments;
- char *arg;
int i;
// Scan Arguments
if(Arguments)
{
+ char **args = Arguments;
+ char *arg, *opt, *val;
for( ; (arg = *args); args++ )
{
- if(arg[0] != '-') continue;
+ Log_Debug("VTerm", "Argument '%s'", arg);
+ opt = arg;
+ val = arg + strpos(arg, '='); *val++ = '\0';
- switch(arg[1])
- {
- // Set output device
- case 'o':
- if(args[1] == NULL) break;
+ if( strcmp(opt, "Video") == 0 ) {
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;
+ gsVT_OutputDevice = strdup(val);
+ }
+ else if( strcmp(opt, "Input") == 0 ) {
if(gsVT_InputDevice) free(gsVT_InputDevice);
- gsVT_InputDevice = malloc(strlen(args[1])+1);
- strcpy(gsVT_InputDevice, args[1]);
- args ++;
- break;
-
+ gsVT_InputDevice = strdup(val);
+ }
+ else if( strcmp(opt, "Width") == 0 ) {
+ giVT_RealWidth = atoi( val );
+ }
+ else if( strcmp(opt, "Height") == 0 ) {
+ giVT_RealHeight = atoi( val );
+ }
+ else if( strcmp(opt, "Scrollback") == 0 ) {
+ giVT_Scrollback = atoi( val );
}
}
}
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);
+ Log_Log("VTerm", "Using '%s' as output", gsVT_OutputDevice);
+ Log_Log("VTerm", "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].Width = giVT_RealWidth/giVT_CharWidth;
+ gVT_Terminals[i].Height = giVT_RealHeight/giVT_CharHeight;
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].Buffer = calloc(
+ gVT_Terminals[i].Width*gVT_Terminals[i].Height*(giVT_Scrollback+1),
+ sizeof(tVT_Char)
+ );
gVT_Terminals[i].Name[0] = '0'+i;
gVT_Terminals[i].Name[1] = '\0';
// Add to DevFS
DevFS_AddDevice( &gVT_DrvInfo );
+ VT_InitOutput();
+ VT_InitInput();
+
// Set kernel output to VT0
Debug_SetKTerminal("/Devices/VTerm/0");
- return MODULE_INIT_SUCCESS;
+ Log_Log("VTerm", "Returning %i", MODULE_ERR_OK);
+ return MODULE_ERR_OK;
}
/**
void VT_InitOutput()
{
giVT_OutputDevHandle = VFS_Open(gsVT_OutputDevice, VFS_OPENFLAG_WRITE);
+ if(giVT_InputDevHandle == -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 );
}
/**
{
int num;
- //ENTER("pNode sName", Node, Name);
+ ENTER("pNode sName", Node, Name);
// Open the input and output files if needed
if(giVT_OutputDevHandle == -2) VT_InitOutput();
return NULL;
}
// Return node
- //LEAVE('p', &gVT_Terminals[num].Node);
+ LEAVE('p', &gVT_Terminals[num].Node);
return &gVT_Terminals[num].Node;
}
}
break;
- case TERM_MODE_FB:
- case TERM_MODE_OPENGL:
+ //case TERM_MODE_FB:
+ default:
while(pos < Length)
{
while(term->InputRead == term->InputWrite) Threads_Yield();
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);
+ int size;
// Write
switch( term->Mode )
case TERM_MODE_TEXT:
VT_int_PutString(term, Buffer, Length);
break;
+ case TERM_MODE_FB:
+ size = term->Width*term->Height*4;
+ if( Offset > size ) {
+ Log_Notice("VTerm", "VT_Write: Offset (0x%llx) > FBSize (0x%x)",
+ Offset, size);
+ return 0;
+ }
+
+ if( Offset + Length > size ) {
+ Log_Notice("VTerm", "VT_Write: Offset+Length (0x%llx) > FBSize (0x%x)",
+ Offset+Length, size);
+ Length = size - Offset;
+ }
+
+ memcpy( (void*)((Uint)term->Buffer + (Uint)Offset), Buffer, Length );
+
+ if( Node->Inode == giVT_CurrentTerminal )
+ {
+ if( giVT_RealWidth > term->Width || giVT_RealHeight > term->Height )
+ {
+ int x, y, w, h;
+ x = Offset/4; y = x / term->Width; x %= term->Width;
+ w = Length/4+x; h = w / term->Width; w %= term->Width;
+ // Center
+ x += (giVT_RealWidth - term->Width) / 2;
+ y += (giVT_RealHeight - term->Height) / 2;
+ while(h--)
+ {
+ VFS_WriteAt( giVT_OutputDevHandle,
+ (x + y * giVT_RealWidth)*4,
+ term->Width * 4,
+ Buffer
+ );
+ Buffer = (void*)( (Uint)Buffer + term->Width*4 );
+ y ++;
+ }
+ return 0;
+ }
+ else {
+ return VFS_WriteAt( giVT_OutputDevHandle, Offset, Length, Buffer );
+ }
+ }
+
+ case TERM_MODE_2DACCEL:
+ //case TERM_MODE_3DACCEL:
+ if( Node->Inode == giVT_CurrentTerminal )
+ {
+ VFS_Write( giVT_OutputDevHandle, Length, Buffer );
+ }
+ break;
}
- //LEAVE('i', 0);
return 0;
}
tVTerm *term = Node->ImplPtr;
ENTER("pNode iId pData", Node, Id, Data);
+ if(Id >= DRV_IOCTL_LOOKUP) {
+ // Only root can fiddle with graphics modes
+ // TODO: Remove this and replace with user ownership
+ if( Threads_GetUID() != 0 ) return -1;
+ }
+
switch(Id)
{
+ // --- Core Defined
case DRV_IOCTL_TYPE:
LEAVE('i', DRV_TYPE_TERMINAL);
return DRV_TYPE_TERMINAL;
case TERM_IOCTL_MODETYPE:
if(Data != NULL)
{
+ if( CheckMem(Data, sizeof(int)) == 0 ) {
+ LEAVE('i', -1);
+ return -1;
+ }
+ Log_Log("VTerm", "VTerm %i mode set to %i", (int)Node->Inode, *iData);
+
+ // Update mode if needed
if(term->Mode != *iData)
VT_int_ChangeMode(term, *iData);
// Update the screen dimensions
- if(giVT_CurrentTerminal == Node->Inode)
+ if(Node->Inode == giVT_CurrentTerminal)
VT_SetTerminal( giVT_CurrentTerminal );
}
LEAVE('i', term->Mode);
// Get/set the terminal width
case TERM_IOCTL_WIDTH:
- if(Data != NULL) term->Width = *iData;
+ if(Data != NULL) {
+ if( CheckMem(Data, sizeof(int)) == 0 ) {
+ LEAVE('i', -1);
+ return -1;
+ }
+ term->Width = *iData;
+ }
Log("VT_Terminal_IOCtl - RETURN term->Width = %i", term->Width);
LEAVE('i', term->Width);
return term->Width;
// Get/set the terminal height
case TERM_IOCTL_HEIGHT:
- if(Data != NULL) term->Height = *iData;
+ if(Data != NULL) {
+ if( CheckMem(Data, sizeof(int)) == 0 ) {
+ LEAVE('i', -1);
+ return -1;
+ }
+ term->Height = *iData;
+ }
Log("VT_Terminal_IOCtl - RETURN term->Height = %i", term->Height);
LEAVE('i', term->Height);
return term->Height;
+
+ case TERM_IOCTL_FORCESHOW:
+ Log_Log("VTerm", "Thread %i forced VTerm %i to be shown",
+ Threads_GetTID(), (int)Node->Inode);
+ VT_SetTerminal( Node->Inode );
+ LEAVE('i', 1);
+ return 1;
}
LEAVE('i', -1);
return -1;
}
-/**
- * \fn void VT_SetTerminal(int ID)
- * \brief Set the current terminal
- */
-void VT_SetTerminal(int ID)
+void VT_SetResolution(int Width, int Height)
{
tVideo_IOCtl_Mode mode = {0};
- int modeNum;
+ int tmp;
+ int i;
// 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;
- }
+ mode.width = Width;
+ mode.height = Height;
+ 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_GETSETMODE, &modeNum );
+ tmp = mode.id;
+ if( Width != mode.width || Height != mode.height )
+ {
+ Log_Warning("VTerm",
+ "Selected resolution (%ix%i is not supported) by the device, using (%ix%i)",
+ giVT_RealWidth, giVT_RealHeight,
+ mode.width, mode.height
+ );
+ }
+ VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_GETSETMODE, &tmp );
+ // Resize text terminals if needed
+ if( giVT_RealWidth != mode.width || giVT_RealHeight != mode.height )
+ {
+ int newBufSize = (giVT_RealWidth/giVT_CharWidth)
+ *(giVT_RealHeight/giVT_CharHeight)
+ *(giVT_Scrollback+1);
+ //tVT_Char *tmp;
+ // Resize the text terminals
+ giVT_RealWidth = mode.width;
+ giVT_RealHeight = mode.height;
+ for( i = 0; i < NUM_VTS; i ++ )
+ {
+ if( gVT_Terminals[i].Mode != TERM_MODE_TEXT ) continue;
+
+ gVT_Terminals[i].Text = realloc(
+ gVT_Terminals[i].Text,
+ newBufSize*sizeof(tVT_Char)
+ );
+ }
+ }
+}
+
+void VT_SetMode(int Mode)
+{
+ VFS_IOCtl( giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &Mode );
+}
+
+/**
+ * \fn void VT_SetTerminal(int ID)
+ * \brief Set the current terminal
+ */
+void VT_SetTerminal(int ID)
+{
// Update current terminal ID
- Log("Changed terminal from %i to %i", giVT_CurrentTerminal, ID);
+ Log_Log("VTerm", "Changed terminal from %i to %i", giVT_CurrentTerminal, ID);
giVT_CurrentTerminal = ID;
+ gpVT_CurTerm = &gVT_Terminals[ID];
+
+ // Update cursor
+ if( gpVT_CurTerm->Mode == TERM_MODE_TEXT && !(gpVT_CurTerm->Flags & VT_FLAG_HIDECSR) )
+ {
+ tVideo_IOCtl_Pos pos;
+ pos.x = gpVT_CurTerm->WritePos % gpVT_CurTerm->Width;
+ pos.y = gpVT_CurTerm->WritePos / gpVT_CurTerm->Width;
+ VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETCURSOR, &pos);
+ }
+
+ if( gpVT_CurTerm->Mode == TERM_MODE_TEXT )
+ VT_SetMode( VIDEO_BUFFMT_TEXT );
+ else
+ VT_SetMode( VIDEO_BUFFMT_FRAMEBUFFER );
// Update the screen
VT_int_UpdateScreen( &gVT_Terminals[ ID ], 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)
{
case KEY_F11: VT_SetTerminal(10); return;
case KEY_F12: VT_SetTerminal(11); return;
case KEY_PGUP:
+ if( gpVT_CurTerm->ViewPos > gpVT_CurTerm->Width )
+ gpVT_CurTerm->ViewPos -= gpVT_CurTerm->Width;
+ else
+ gpVT_CurTerm->ViewPos = 0;
return;
case KEY_PGDOWN:
+ if( gpVT_CurTerm->ViewPos < gpVT_CurTerm->Width*gpVT_CurTerm->Height*(giVT_Scrollback-1) )
+ gpVT_CurTerm->ViewPos += gpVT_CurTerm->Width;
+ else
+ gpVT_CurTerm->ViewPos = gpVT_CurTerm->Width*gpVT_CurTerm->Height*(giVT_Scrollback-1);
return;
}
}
}
}
-/**
- * \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
char c;
int argc = 0, j = 1;
int tmp;
- int args[4] = {0,0,0,0};
+ int args[6] = {0,0,0,0};
- switch(Buffer[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 == ';');
+ 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 string (what does this do?)
if(c == '"') {
- c = Buffer[++j];
+ c = Buffer[j++];
while(c != '"')
- c = Buffer[++j];
+ c = Buffer[j++];
}
+ */
+
+ //Log_Debug("VTerm", "argc = %i", argc);
// Get Command
if( ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
{
case 2:
{
- int i = Term->Height * VT_SCROLLBACK;
+ int i = Term->Height * (giVT_Scrollback + 1);
while( i-- ) VT_int_ClearLine(Term, i);
Term->WritePos = 0;
Term->ViewPos = 0;
break;
}
break;
+ // Set cursor position
+ case 'h':
+ Term->WritePos = args[0] + args[1]*Term->Width;
+ Log_Debug("VTerm", "args = {%i, %i}", args[0], args[1]);
+ break;
// Set Font flags
case 'm':
for( ; argc--; )
}
}
break;
+ default:
+ Log_Warning("VTerm", "Unknown control sequence");
+ break;
}
}
break;
- default:
- break;
+ default: break;
}
- return j + 1;
+ //Log_Debug("VTerm", "j = %i, Buffer = '%s'", j, Buffer);
+ return j;
+}
+
+/**
+ * \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;
+
+ // Iterate
+ for( i = 0; i < Count; i++ )
+ {
+ // Handle escape sequences
+ if( Buffer[i] == 0x1B )
+ {
+ i ++;
+ i += VT_int_ParseEscape(Term, (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 );
+
+ // Update cursor
+ if( Term == gpVT_CurTerm && !(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);
+ }
}
/**
void VT_int_PutChar(tVTerm *Term, Uint32 Ch)
{
int i;
- //ENTER("pTerm xCh", Term, Ch);
- //LOG("Term = {WritePos:%i, ViewPos:%i}", Term->WritePos, Term->ViewPos);
-
+
switch(Ch)
{
case '\0': return; // Ignore NULL byte
case '\n':
+ VT_int_UpdateScreen( Term, 0 ); // Update the line before newlining
Term->WritePos += Term->Width;
case '\r':
Term->WritePos -= Term->WritePos % Term->Width;
Term->WritePos ++;
break;
}
-
// Move Screen
- if(Term->WritePos >= Term->Width*Term->Height*VT_SCROLLBACK)
+ // - Check if we need to scroll the entire scrollback buffer
+ if(Term->WritePos >= Term->Width*Term->Height*(giVT_Scrollback+1))
{
int base, i;
+
+ //Debug("Scrolling entire buffer");
+
+ // Move back by one
Term->WritePos -= Term->Width;
+ // Update the scren
+ VT_int_UpdateScreen( Term, 0 );
// 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;
+ base = Term->Width*Term->Height*(giVT_Scrollback);
+ 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
+ base = Term->Width*(Term->Height*(giVT_Scrollback+1)-1);
memcpy(
Term->Text,
&Term->Text[Term->Width],
- Term->Width*(Term->Height-1)*VT_SCROLLBACK*sizeof(tVT_Char)
+ (Term->Width*Term->Height*(giVT_Scrollback+1)-Term->Width)*sizeof(tVT_Char)
);
// Clear last row
Term->Text[ base + i ].Colour = Term->CurColour;
}
- VT_int_UpdateScreen( Term, 1 );
+ VT_int_ScrollFramebuffer( Term );
+ VT_int_UpdateScreen( Term, 0 );
}
- else if(Term->WritePos > Term->Width*Term->Height+Term->ViewPos)
+ // Ok, so we only need to scroll the screen
+ else if(Term->WritePos >= Term->ViewPos + Term->Width*Term->Height)
{
+ //Debug("Term->WritePos (%i) >= %i",
+ // Term->WritePos,
+ // Term->ViewPos + Term->Width*Term->Height
+ // );
+ //Debug("Scrolling screen only");
+
+ // Update the last line
+ Term->WritePos -= Term->Width;
+ VT_int_UpdateScreen( Term, 0 );
+ Term->WritePos += Term->Width;
+
+ // Scroll
Term->ViewPos += Term->Width;
- VT_int_UpdateScreen( Term, 1 );
- }
- else
+ //Debug("Term->ViewPos = %i", Term->ViewPos);
+ VT_int_ScrollFramebuffer( Term );
VT_int_UpdateScreen( Term, 0 );
+ }
//LEAVE('-');
}
+/**
+ * \fn void VT_int_ScrollFramebuffer( tVTerm *Term )
+ * \note Scrolls the framebuffer by 1 text line
+ */
+void VT_int_ScrollFramebuffer( tVTerm *Term )
+{
+ 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;
+
+ // Switch to 2D Command Stream
+ tmp = VIDEO_BUFFMT_2DSTREAM;
+ VFS_IOCtl(giVT_OutputDevHandle, VIDEO_IOCTL_SETBUFFORMAT, &tmp);
+
+ // BLIT from 0,0 to 0,giVT_CharHeight
+ buf.Op = VIDEO_2DOP_BLIT;
+ buf.DstX = 0; buf.DstY = 0;
+ buf.SrcX = 0; buf.SrcY = giVT_CharHeight;
+ buf.W = Term->Width * giVT_CharWidth;
+ buf.H = (Term->Height-1) * 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);
+}
+
/**
* \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 != gpVT_CurTerm ) return;
- if( Term->Mode == TERM_MODE_TEXT )
+ switch( Term->Mode )
{
+ case TERM_MODE_TEXT:
+ // Re copy the entire screen?
if(UpdateAll) {
VFS_WriteAt(
giVT_OutputDevHandle,
Term->Width*Term->Height*sizeof(tVT_Char),
&Term->Text[Term->ViewPos]
);
- } else {
+ }
+ // Only copy the current line
+ else {
int pos = Term->WritePos - Term->WritePos % Term->Width;
VFS_WriteAt(
giVT_OutputDevHandle,
&Term->Text[pos]
);
}
- }
- else
- {
+ break;
+ case TERM_MODE_FB:
VFS_WriteAt(
giVT_OutputDevHandle,
0,
Term->Width*Term->Height*sizeof(Uint32),
- &Term->Buffer
+ Term->Buffer
);
+ break;
}
}
switch(NewMode)
{
case TERM_MODE_TEXT:
+ Log_Log("VTerm", "Set VT %p to text mode", Term);
free(Term->Buffer);
- Term->Text = calloc( Term->Width*Term->Height*VT_SCROLLBACK, sizeof(tVT_Char) );
+ Term->Text = calloc( Term->Width*Term->Height*(giVT_Scrollback+1), sizeof(tVT_Char) );
break;
case TERM_MODE_FB:
+ Log_Log("VTerm", "Set VT %p to framebuffer mode (%ix%i)", Term,
+ Term->Width, Term->Height);
free(Term->Text);
Term->Buffer = calloc( Term->Width*Term->Height, sizeof(Uint32) );
+ Log_Debug("VTerm", "Term->Buffer = %p", Term->Buffer);
break;
- case TERM_MODE_OPENGL:
- return;
+ //case TERM_MODE_2DACCEL:
+ //case TERM_MODE_3DACCEL:
+ // return;
}
Term->Mode = NewMode;
Uint8 *VT_Font_GetChar(Uint32 Codepoint);
// === GLOBALS ===
-int giVT_CharWidth = FONT_WIDTH+1;
+int giVT_CharWidth = FONT_WIDTH;
int giVT_CharHeight = FONT_HEIGHT;
// === CODE ===
git.ucc.asn.au / tpg / acess2.git / blobdiff
UCC git Repository :: git.ucc.asn.au