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Added alphanumeric mode to the VGA emulation. 

Use service thread for the periodic refresh.
This commit is contained in:
Ove Kaaven 2000-02-03 00:46:29 +00:00 committed by Alexandre Julliard
parent 9b89998113
commit c9307edf0c
2 changed files with 130 additions and 36 deletions
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135
graphics/vga.c
View File

@ -7,11 +7,11 @@
#include <string.h>
#include "winbase.h"
#include "winuser.h"
#include "wine/winuser16.h"
#include "wincon.h"
#include "miscemu.h"
#include "vga.h"
#include "ddraw.h"
#include "services.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(ddraw)
@ -20,9 +20,32 @@ static IDirectDraw *lpddraw = NULL;
static IDirectDrawSurface *lpddsurf;
static IDirectDrawPalette *lpddpal;
static DDSURFACEDESC sdesc;
static WORD poll_timer;
static CRITICAL_SECTION vga_crit;
static int vga_polling,vga_refresh;
static LONG vga_polling,vga_refresh;
static HANDLE poll_timer;
static void VGA_DeinstallTimer(void)
{
if (poll_timer) {
SERVICE_Delete( poll_timer );
poll_timer = 0;
}
}
static void VGA_InstallTimer(unsigned Rate)
{
VGA_DeinstallTimer();
if (!poll_timer)
poll_timer = SERVICE_AddTimer( Rate, VGA_Poll, 0 );
}
HANDLE VGA_AlphaConsole(void)
{
/* this assumes that no Win32 redirection has taken place, but then again,
* only 16-bit apps are likely to use this part of Wine... */
return GetStdHandle(STD_OUTPUT_HANDLE);
}
/*** GRAPHICS MODE ***/
int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
{
@ -51,10 +74,8 @@ int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
return 1;
}
vga_refresh=0;
InitializeCriticalSection(&vga_crit);
MakeCriticalSectionGlobal(&vga_crit);
/* poll every 20ms (50fps should provide adequate responsiveness) */
poll_timer = CreateSystemTimer( 20, VGA_Poll );
VGA_InstallTimer(20000);
}
return 0;
}
@ -72,8 +93,7 @@ int VGA_GetMode(unsigned*Height,unsigned*Width,unsigned*Depth)
void VGA_Exit(void)
{
if (lpddraw) {
SYSTEM_KillSystemTimer(poll_timer);
DeleteCriticalSection(&vga_crit);
VGA_DeinstallTimer();
IDirectDrawSurface_Release(lpddsurf);
lpddsurf=NULL;
IDirectDraw_Release(lpddraw);
@ -124,23 +144,62 @@ void VGA_Unlock(void)
IDirectDrawSurface_Unlock(lpddsurf,sdesc.u1.lpSurface);
}
/* We are called from SIGALRM, aren't we? We should _NOT_ do synchronization
* stuff!
*/
void VGA_Poll( WORD timer )
/*** TEXT MODE ***/
int VGA_SetAlphaMode(unsigned Xres,unsigned Yres)
{
COORD siz;
if (lpddraw) VGA_Exit();
/* the xterm is slow, so refresh only every 200ms (5fps) */
VGA_InstallTimer(200000);
siz.x = Xres;
siz.y = Yres;
SetConsoleScreenBufferSize(VGA_AlphaConsole(),siz);
return 0;
}
void VGA_GetAlphaMode(unsigned*Xres,unsigned*Yres)
{
CONSOLE_SCREEN_BUFFER_INFO info;
GetConsoleScreenBufferInfo(VGA_AlphaConsole(),&info);
if (Xres) *Xres=info.dwSize.x;
if (Yres) *Yres=info.dwSize.y;
}
void VGA_SetCursorPos(unsigned X,unsigned Y)
{
COORD pos;
pos.x = X;
pos.y = Y;
SetConsoleCursorPosition(VGA_AlphaConsole(),pos);
}
void VGA_GetCursorPos(unsigned*X,unsigned*Y)
{
CONSOLE_SCREEN_BUFFER_INFO info;
GetConsoleScreenBufferInfo(VGA_AlphaConsole(),&info);
if (X) *X=info.dwCursorPosition.x;
if (Y) *Y=info.dwCursorPosition.y;
}
/*** CONTROL ***/
void CALLBACK VGA_Poll( ULONG_PTR arg )
{
char *dat;
unsigned Pitch,Height,Width;
char *surf;
int Y;
/* int X; */
int Y,X;
EnterCriticalSection(&vga_crit);
if (!vga_polling) {
vga_polling++;
LeaveCriticalSection(&vga_crit);
if (!InterlockedExchangeAdd(&vga_polling, 1)) {
/* FIXME: optimize by doing this only if the data has actually changed
* (in a way similar to DIBSection, perhaps) */
if (lpddraw) {
/* graphics mode */
surf = VGA_Lock(&Pitch,&Height,&Width,NULL);
if (!surf) return;
dat = DOSMEM_MapDosToLinear(0xa0000);
@ -150,11 +209,31 @@ void VGA_Poll( WORD timer )
/*for (X=0; X<Width; X++) if (dat[X]) TRACE(ddraw,"data(%d) at (%d,%d)\n",dat[X],X,Y);*/
}
VGA_Unlock();
vga_refresh=1;
EnterCriticalSection(&vga_crit);
vga_polling--;
} else {
/* text mode */
CHAR_INFO ch[80];
COORD siz, off;
SMALL_RECT dest;
HANDLE con = VGA_AlphaConsole();
VGA_GetAlphaMode(&Width,&Height);
dat = DOSMEM_MapDosToLinear(0xb8000);
siz.x = 80; siz.y = 1;
off.x = 0; off.y = 0;
/* copy from virtual VGA frame buffer to console */
for (Y=0; Y<Height; Y++) {
dest.Top=Y; dest.Bottom=Y;
for (X=0; X<Width; X++) {
ch[X].Char.AsciiChar = *dat++;
ch[X].Attributes = *dat++;
}
LeaveCriticalSection(&vga_crit);
dest.Left=0; dest.Right=Width+1;
WriteConsoleOutputA(con, ch, siz, off, &dest);
}
}
vga_refresh=1;
}
InterlockedDecrement(&vga_polling);
}
static BYTE palreg,palcnt;
@ -183,13 +262,17 @@ BYTE VGA_ioport_in( WORD port )
case 0x3da:
/* since we don't (yet?) serve DOS VM requests while VGA_Poll is running,
we need to fake the occurrence of the vertical refresh */
if (lpddraw) {
ret=vga_refresh?0x00:0x08;
vga_refresh=0;
} else ret=0x08;
break;
default:
ret=0xff;
}
return ret;
}
void VGA_Clean(void)
{
VGA_Exit();
VGA_DeinstallTimer();
}

13
include/vga.h
View File

@ -8,8 +8,10 @@
#ifndef __WINE_VGA_H
#define __WINE_VGA_H
#include "winbase.h"
#include "wingdi.h"
/* graphics mode */
int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth);
int VGA_GetMode(unsigned*Height,unsigned*Width,unsigned*Depth);
void VGA_Exit(void);
@ -17,8 +19,17 @@ void VGA_SetPalette(PALETTEENTRY*pal,int start,int len);
void VGA_SetQuadPalette(RGBQUAD*color,int start,int len);
LPSTR VGA_Lock(unsigned*Pitch,unsigned*Height,unsigned*Width,unsigned*Depth);
void VGA_Unlock(void);
void VGA_Poll(WORD timer);
/* text mode */
int VGA_SetAlphaMode(unsigned Xres,unsigned Yres);
void VGA_GetAlphaMode(unsigned*Xres,unsigned*Yres);
void VGA_SetCursorPos(unsigned X,unsigned Y);
void VGA_GetCursorPos(unsigned*X,unsigned*Y);
/* control */
void CALLBACK VGA_Poll(ULONG_PTR arg);
void VGA_ioport_out(WORD port, BYTE val);
BYTE VGA_ioport_in(WORD port);
void VGA_Clean(void);
#endif /* __WINE_VGA_H */