static void DISPDIB_Show(LPBITMAPINFOHEADER lpbi,LPSTR lpBits,WORD uFlags)
{
int Xofs,Yofs,Width=lpbi->biWidth,Height=lpbi->biHeight,Delta;
int Pitch = (Width + 3) & ~3;
unsigned int sPitch,sWidth,sHeight;
LPSTR surf = DOSMEM_MapDosToLinear(0xa0000);
if (VGA_GetMode(&sHeight,&sWidth,NULL)) return;
sPitch=320;
Delta=(Height<0)*2-1;
Height*=-Delta; Pitch*=Delta;
if (uFlags&DISPLAYDIB_NOCENTER) {
Xofs=0; Yofs=0;
} else {
Xofs=(sWidth-Width)/2;
Yofs=(sHeight-Height)/2;
}
surf += (Yofs*sPitch)+Xofs;
if (Pitch<0) lpBits-=Pitch*(Height-1);
for (; Height; Height--,lpBits+=Pitch,surf+=sPitch) {
memcpy(surf,lpBits,Width);
}
VGA_Poll(0);
}
void DOSVM_Int33Message(UINT message,WPARAM wParam,LPARAM lParam)
{
WORD mask = 0;
unsigned Height, Width, SX=1, SY=1;
if (!VGA_GetMode(&Height,&Width,NULL)) {
/* may need to do some coordinate scaling */
if (Width)
SX = 640/Width;
if (!SX) SX=1;
}
switch (message) {
case WM_MOUSEMOVE:
mask |= 0x01;
break;
case WM_LBUTTONDOWN:
case WM_LBUTTONDBLCLK:
mask |= 0x02;
break;
case WM_LBUTTONUP:
mask |= 0x04;
break;
case WM_RBUTTONDOWN:
case WM_RBUTTONDBLCLK:
mask |= 0x08;
break;
case WM_RBUTTONUP:
mask |= 0x10;
break;
case WM_MBUTTONDOWN:
case WM_MBUTTONDBLCLK:
mask |= 0x20;
break;
case WM_MBUTTONUP:
mask |= 0x40;
break;
}
QueueMouseRelay(LOWORD(lParam) * SX,
HIWORD(lParam) * SY,
mask);
}
