Sweden-Number/msdos/int33.c

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/*
* DOS interrupt 33h handler
*/
#include <stdlib.h>
#include "windef.h"
#include "wingdi.h"
#include "winuser.h"
#include "miscemu.h"
#include "dosexe.h"
#include "vga.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(int)
static struct
{
DWORD x, y, but;
FARPROC16 callback;
WORD callmask;
} mouse_info;
/**********************************************************************
* INT_Int33Handler
*
* Handler for int 33h (MS MOUSE).
*/
void WINAPI INT_Int33Handler( CONTEXT86 *context )
{
switch (LOWORD(context->Eax)) {
case 0x00:
TRACE("Reset mouse driver and request status\n");
AX_reg(context) = 0xFFFF; /* installed */
BX_reg(context) = 3; /* # of buttons */
memset( &mouse_info, 0, sizeof(mouse_info) );
break;
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case 0x01:
FIXME("Show mouse cursor\n");
break;
case 0x02:
FIXME("Hide mouse cursor\n");
break;
case 0x03:
TRACE("Return mouse position and button status\n");
BX_reg(context) = mouse_info.but;
CX_reg(context) = mouse_info.x;
DX_reg(context) = mouse_info.y;
break;
case 0x04:
FIXME("Position mouse cursor\n");
break;
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case 0x07:
FIXME("Define horizontal mouse cursor range\n");
break;
case 0x08:
FIXME("Define vertical mouse cursor range\n");
break;
case 0x09:
FIXME("Define graphics mouse cursor\n");
break;
case 0x0A:
FIXME("Define text mouse cursor\n");
break;
case 0x0C:
TRACE("Define mouse interrupt subroutine\n");
mouse_info.callmask = CX_reg(context);
mouse_info.callback = (FARPROC16)PTR_SEG_OFF_TO_SEGPTR(context->SegEs, LOWORD(context->Edx));
break;
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case 0x10:
FIXME("Define screen region for update\n");
break;
default:
INT_BARF(context,0x33);
}
}
typedef struct {
FARPROC16 proc;
WORD mask,but,x,y,mx,my;
} MCALLDATA;
static void MouseRelay(CONTEXT86 *context,void *mdata)
{
MCALLDATA *data = (MCALLDATA *)mdata;
CONTEXT86 ctx = *context;
ctx.Eax = data->mask;
ctx.Ebx = data->but;
ctx.Ecx = data->x;
ctx.Edx = data->y;
ctx.Esi = data->mx;
ctx.Edi = data->my;
ctx.SegCs = SELECTOROF(data->proc);
ctx.Eip = OFFSETOF(data->proc);
free(data);
DPMI_CallRMProc(&ctx, NULL, 0, 0);
}
void WINAPI INT_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 */
SX = 640/Width;
if (!SX) SX=1;
}
mouse_info.x = LOWORD(lParam) * SX;
mouse_info.y = HIWORD(lParam) * SY;
switch (message) {
case WM_MOUSEMOVE:
mask |= 0x01;
break;
case WM_LBUTTONDOWN:
case WM_LBUTTONDBLCLK:
mouse_info.but |= 0x01;
mask |= 0x02;
break;
case WM_LBUTTONUP:
mouse_info.but &= ~0x01;
mask |= 0x04;
break;
case WM_RBUTTONDOWN:
case WM_RBUTTONDBLCLK:
mouse_info.but |= 0x02;
mask |= 0x08;
break;
case WM_RBUTTONUP:
mouse_info.but &= ~0x02;
mask |= 0x10;
break;
case WM_MBUTTONDOWN:
case WM_MBUTTONDBLCLK:
mouse_info.but |= 0x04;
mask |= 0x20;
break;
case WM_MBUTTONUP:
mouse_info.but &= ~0x04;
mask |= 0x40;
break;
}
if ((mask & mouse_info.callmask) && mouse_info.callback) {
MCALLDATA *data = calloc(1,sizeof(MCALLDATA));
data->proc = mouse_info.callback;
data->mask = mask & mouse_info.callmask;
data->but = mouse_info.but;
data->x = mouse_info.x;
data->y = mouse_info.y;
DOSVM_QueueEvent(-1, DOS_PRIORITY_MOUSE, MouseRelay, data);
}
}