mirror of
git://source.winehq.org/git/wine.git
synced 2024-11-05 18:01:34 +00:00
311 lines
8.1 KiB
C
311 lines
8.1 KiB
C
/*
|
|
* VGA hardware emulation
|
|
*
|
|
* Copyright 1998 Ove Kåven (with some help from Marcus Meissner)
|
|
*
|
|
*/
|
|
|
|
#include <string.h>
|
|
#include "winbase.h"
|
|
#include "wincon.h"
|
|
#include "miscemu.h"
|
|
#include "vga.h"
|
|
#include "ddraw.h"
|
|
#include "services.h"
|
|
#include "debugtools.h"
|
|
|
|
DEFAULT_DEBUG_CHANNEL(ddraw)
|
|
|
|
static IDirectDraw *lpddraw = NULL;
|
|
static IDirectDrawSurface *lpddsurf;
|
|
static IDirectDrawPalette *lpddpal;
|
|
static DDSURFACEDESC sdesc;
|
|
static LONG vga_polling,vga_refresh;
|
|
static HANDLE poll_timer;
|
|
|
|
static HRESULT WINAPI (*pDirectDrawCreate)(LPGUID,LPDIRECTDRAW *,LPUNKNOWN);
|
|
|
|
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);
|
|
}
|
|
|
|
char*VGA_AlphaBuffer(void)
|
|
{
|
|
return DOSMEM_MapDosToLinear(0xb8000);
|
|
}
|
|
|
|
/*** GRAPHICS MODE ***/
|
|
|
|
int VGA_SetMode(unsigned Xres,unsigned Yres,unsigned Depth)
|
|
{
|
|
if (lpddraw) VGA_Exit();
|
|
if (!lpddraw) {
|
|
if (!pDirectDrawCreate)
|
|
{
|
|
HMODULE hmod = LoadLibraryA( "ddraw.dll" );
|
|
if (hmod) pDirectDrawCreate = GetProcAddress( hmod, "DirectDrawCreate" );
|
|
}
|
|
if (pDirectDrawCreate) pDirectDrawCreate(NULL,&lpddraw,NULL);
|
|
if (!lpddraw) {
|
|
ERR("DirectDraw is not available\n");
|
|
return 1;
|
|
}
|
|
if (IDirectDraw_SetDisplayMode(lpddraw,Xres,Yres,Depth)) {
|
|
ERR("DirectDraw does not support requested display mode\n");
|
|
IDirectDraw_Release(lpddraw);
|
|
lpddraw=NULL;
|
|
return 1;
|
|
}
|
|
IDirectDraw_CreatePalette(lpddraw,DDPCAPS_8BIT,NULL,&lpddpal,NULL);
|
|
memset(&sdesc,0,sizeof(sdesc));
|
|
sdesc.dwSize=sizeof(sdesc);
|
|
sdesc.dwFlags = DDSD_CAPS;
|
|
sdesc.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
|
|
if (IDirectDraw_CreateSurface(lpddraw,&sdesc,&lpddsurf,NULL)||(!lpddsurf)) {
|
|
ERR("DirectDraw surface is not available\n");
|
|
IDirectDraw_Release(lpddraw);
|
|
lpddraw=NULL;
|
|
return 1;
|
|
}
|
|
FIXME("no default palette entries\n");
|
|
IDirectDrawSurface_SetPalette(lpddsurf,lpddpal);
|
|
vga_refresh=0;
|
|
/* poll every 20ms (50fps should provide adequate responsiveness) */
|
|
VGA_InstallTimer(20);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int VGA_GetMode(unsigned*Height,unsigned*Width,unsigned*Depth)
|
|
{
|
|
if (!lpddraw) return 1;
|
|
if (!lpddsurf) return 1;
|
|
if (Height) *Height=sdesc.dwHeight;
|
|
if (Width) *Width=sdesc.dwWidth;
|
|
if (Depth) *Depth=sdesc.ddpfPixelFormat.u.dwRGBBitCount;
|
|
return 0;
|
|
}
|
|
|
|
void VGA_Exit(void)
|
|
{
|
|
if (lpddraw) {
|
|
VGA_DeinstallTimer();
|
|
IDirectDrawSurface_SetPalette(lpddsurf,NULL);
|
|
IDirectDrawSurface_Release(lpddsurf);
|
|
lpddsurf=NULL;
|
|
IDirectDrawPalette_Release(lpddpal);
|
|
lpddpal=NULL;
|
|
IDirectDraw_Release(lpddraw);
|
|
lpddraw=NULL;
|
|
}
|
|
}
|
|
|
|
void VGA_SetPalette(PALETTEENTRY*pal,int start,int len)
|
|
{
|
|
if (!lpddraw) return;
|
|
IDirectDrawPalette_SetEntries(lpddpal,0,start,len,pal);
|
|
}
|
|
|
|
void VGA_SetQuadPalette(RGBQUAD*color,int start,int len)
|
|
{
|
|
PALETTEENTRY pal[256];
|
|
int c;
|
|
|
|
if (!lpddraw) return;
|
|
for (c=0; c<len; c++) {
|
|
pal[c].peRed =color[c].rgbRed;
|
|
pal[c].peGreen=color[c].rgbGreen;
|
|
pal[c].peBlue =color[c].rgbBlue;
|
|
pal[c].peFlags=0;
|
|
}
|
|
IDirectDrawPalette_SetEntries(lpddpal,0,start,len,pal);
|
|
}
|
|
|
|
LPSTR VGA_Lock(unsigned*Pitch,unsigned*Height,unsigned*Width,unsigned*Depth)
|
|
{
|
|
if (!lpddraw) return NULL;
|
|
if (!lpddsurf) return NULL;
|
|
if (IDirectDrawSurface_Lock(lpddsurf,NULL,&sdesc,0,0)) {
|
|
ERR("could not lock surface!\n");
|
|
return NULL;
|
|
}
|
|
if (Pitch) *Pitch=sdesc.lPitch;
|
|
if (Height) *Height=sdesc.dwHeight;
|
|
if (Width) *Width=sdesc.dwWidth;
|
|
if (Depth) *Depth=sdesc.ddpfPixelFormat.u.dwRGBBitCount;
|
|
return sdesc.u1.lpSurface;
|
|
}
|
|
|
|
void VGA_Unlock(void)
|
|
{
|
|
IDirectDrawSurface_Unlock(lpddsurf,sdesc.u1.lpSurface);
|
|
}
|
|
|
|
/*** 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(200);
|
|
|
|
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;
|
|
}
|
|
|
|
void VGA_WriteChars(unsigned X,unsigned Y,unsigned ch,int attr,int count)
|
|
{
|
|
unsigned XR, YR;
|
|
char*dat;
|
|
|
|
VGA_GetAlphaMode(&XR, &YR);
|
|
dat = VGA_AlphaBuffer() + ((XR*Y + X) * 2);
|
|
/* FIXME: also call WriteConsoleOutputA, for better responsiveness */
|
|
while (count--) {
|
|
*dat++ = ch;
|
|
if (attr>=0) *dat = attr;
|
|
dat++;
|
|
}
|
|
}
|
|
|
|
/*** CONTROL ***/
|
|
|
|
void CALLBACK VGA_Poll( ULONG_PTR arg )
|
|
{
|
|
char *dat;
|
|
unsigned Pitch,Height,Width;
|
|
char *surf;
|
|
int Y,X;
|
|
|
|
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);
|
|
/* copy from virtual VGA frame buffer to DirectDraw surface */
|
|
for (Y=0; Y<Height; Y++,surf+=Pitch,dat+=Width) {
|
|
memcpy(surf,dat,Width);
|
|
/*for (X=0; X<Width; X++) if (dat[X]) TRACE(ddraw,"data(%d) at (%d,%d)\n",dat[X],X,Y);*/
|
|
}
|
|
VGA_Unlock();
|
|
} else {
|
|
/* text mode */
|
|
CHAR_INFO ch[80];
|
|
COORD siz, off;
|
|
SMALL_RECT dest;
|
|
HANDLE con = VGA_AlphaConsole();
|
|
|
|
VGA_GetAlphaMode(&Width,&Height);
|
|
dat = VGA_AlphaBuffer();
|
|
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++;
|
|
/* WriteConsoleOutputA doesn't like "dead" chars */
|
|
if (ch[X].Char.AsciiChar == '\0')
|
|
ch[X].Char.AsciiChar = ' ';
|
|
ch[X].Attributes = *dat++;
|
|
}
|
|
dest.Left=0; dest.Right=Width+1;
|
|
WriteConsoleOutputA(con, ch, siz, off, &dest);
|
|
}
|
|
}
|
|
vga_refresh=1;
|
|
}
|
|
InterlockedDecrement(&vga_polling);
|
|
}
|
|
|
|
static BYTE palreg,palcnt;
|
|
static PALETTEENTRY paldat;
|
|
|
|
void VGA_ioport_out( WORD port, BYTE val )
|
|
{
|
|
switch (port) {
|
|
case 0x3c8:
|
|
palreg=val; palcnt=0; break;
|
|
case 0x3c9:
|
|
((BYTE*)&paldat)[palcnt++]=val << 2;
|
|
if (palcnt==3) {
|
|
VGA_SetPalette(&paldat,palreg++,1);
|
|
palcnt=0;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
BYTE VGA_ioport_in( WORD port )
|
|
{
|
|
BYTE ret;
|
|
|
|
switch (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 */
|
|
ret=vga_refresh?0x00:0x08;
|
|
vga_refresh=0;
|
|
break;
|
|
default:
|
|
ret=0xff;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
void VGA_Clean(void)
|
|
{
|
|
VGA_Exit();
|
|
VGA_DeinstallTimer();
|
|
}
|